Repository: PIC-IRIS/PH5 (language: python)

Issue:
[BUG] ph5toevt does not work correctly for data ingested with mstoph5 (SmartSolo data)
**Describe the bug**
ph5toevt does not populate headers and cannot create a readable SEGY gather for data ingested with mstoph5 from SmartSolo miniseed files.

**Environment (please complete the following information):**
 - OS:server ph52
 - Program Version ph5toevt 2019.66

**To Reproduce**
ph5toevt -n master.ph5 --starttime=2020:313:16:12:37.000 -A 001 -l 3 -o gather3
[2021-03-10 16:53:30,868] - ph5.clients.ph5toevt - INFO: 2019.66: ['/home/ph5/anaconda3/envs/ph5/bin/ph5toevt', '-n', 'master.ph5', '--starttime=2020:313:16:12:37.000', '-A', '001', '-l', '3', '-o', 'gather3']
[2021-03-10 16:53:30,882] - ph5.clients.ph5toevt - INFO: Experiment: CO2 containment and monitoring at Crystal Geyser
[2021-03-10 16:53:30,882] - ph5.clients.ph5toevt - INFO: Summary: Seismic imaging to characterize fault properties and outgassing signature related to a natural CO2 seep. Site is located near Green River, Utah.
[2021-03-10 16:53:30,882] - ph5.clients.ph5toevt - INFO: Extracting receivers for event 2020-11-08 16:12:37+00:00.
[2021-03-10 16:53:30,883] - ph5.clients.ph5toevt - WARNING: Warning: No shot to receiver distances found.
[2021-03-10 16:53:30,883] - ph5.clients.ph5toevt - INFO: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[2021-03-10 16:53:30,883] - ph5.clients.ph5toevt - INFO: Attempting to find data for station 8066.
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Applied time drift correction by                        shifting trace by -0.0 samples.
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Correction is 0 ms.
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Clock drift (seconds/second): 0.0
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Clock comment: No clock drift information available.
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: trace: 1
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Extracted: Station ID 8066
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Chan: 1 Start: 2020-11-08 16:12:37+00:00, Stop: 2020-11-08 16:12:40+00:00.
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO: Lat: 38.939038 Lon: -110.136246 Elev: 1234.821000 m
[2021-03-10 16:53:30,905] - ph5.clients.ph5toevt - INFO:
[2021-03-10 16:53:30,907] - ph5.clients.ph5toevt - INFO: Opened: gather3/COTEC_001_2020-11-08 16:12:37+00:00_123_0001.SGY
[2021-03-10 16:53:30,907] - ph5.core.segyfactory - ERROR: Failed to set data array. local variable 'x_f' referenced before assignment
Traceback (most recent call last):
  File "/home/ph5/anaconda3/envs/ph5/bin/ph5toevt", line 11, in <module>
    load_entry_point('ph5', 'console_scripts', 'ph5toevt')()
  File "/home/ph5/PH5/ph5/clients/ph5toevt.py", line 655, in main
    gather(args, p5)
  File "/home/ph5/PH5/ph5/clients/ph5toevt.py", line 576, in gather
    trace, fh, sf, num_traces)
  File "/home/ph5/PH5/ph5/core/segyfactory.py", line 1134, in write_segy_hdr
    e.message))
ph5.core.segyfactory.SEGYError: (("Error: Failed to write reel and first trace. local variable 'nparray' referenced before assignment\n",), {})
Closing remaining open files:./master.ph5...done./miniPH5_00024.ph5...done

This command works on rt125 and Fairfield archives on the same server, with start time adjusted appropriately.

**Additional context**
This affects recent and in-progress archives 21-001 and 21-002.
Das tables list a stream_number_i=0 for archive 21-002.  For the Fairfield archive I checked, stream_number_i=1 in the das tables.  rt125 archives may also have stream_number_i=1 in the das tables.  I cannot immediately identify any other major differences in the das or array tables.


Discussion / hints:
stream_number_i=0 in the das tables for data ingested with mstoph5 where the miniseed was created with rt2ms.  I will attempt to clean up the associated archive (used for testing) and explore this some more.
Modifying stream_number_i to 1 in the das tables (like das tables with a different ingestion method where the same ph5toevt option works), and modifying event_number_i to be nonzero and sequential (again, like other das tables) by themselves does not cause ph5toevt to work or change the error.

The solution may lie in a different direction.
What experiment was this test run on? Which data are you referring too? This may be a problem in the data and not the software. 
I changed the das tables for a subset of data (2 DAS for 8 days) also loaded in PH5 21-002, and for a subset of SEED X6.2019 (both DAS, roughly 20 days).  The latter has been successfully archived.  For the former, I cannot see any problems with the native data.  The miniseed files ingested were created with two different methods: 21-002 is a data offload format for the SmartSolos, and X6.2019 was converted from the native RefTek format to miniseed.  @ascire-pic is familiar with PH5 21-001.
How do I reproduce the stack trace posted above? Was that generated using 21-002 or 21-002 or something different?
The one I posted is from 21-002.  I believe the error is consistent across archives created with mstoph5 (which also requires using metadatatoph5).
Thanks, for expirment 21-002 the data fails ph5tostationxml. 

ph5tostationxml -p ./ -n master.ph5 --level response 
[2021-03-12 21:34:27,218] - ph5.clients.ph5tostationxml - INFO: CHECKING ./master.ph5
[2021-03-12 21:34:28,025] - ph5.clients.ph5tostationxml - INFO: STATIONXML DATA CREATED FOR ./master.ph5
[2021-03-12 21:34:28,032] - ph5.clients.ph5tostationxml - ERROR: 'Frequency' object has no attribute 'measurement_method'
This issue does not seem to be urgent or really a bug... it may be an enhancement. PH5toEVT seems to work on the data that has been accepted into the IRIS archive thus far. 

Fix patch:
diff --git a/create_ph5.sh b/create_ph5.sh
index dbcfed37..8f47d732 100755
--- a/create_ph5.sh
+++ b/create_ph5.sh
@@ -5,7 +5,7 @@ cd ph5/test_data/
 mkdir ph5
 cd ph5
 initialize_ph5 -n master.ph5
-segdtoph5 -n master.ph5 -U 13N -r ../segd/3ch.fcnt
+segdtoph5 -n master.ph5 -U 13N -r ../segd/fairfield/3ch.fcnt
 130toph5 -n master.ph5 -r ../rt130/2016139.9EEF.ZIP
 125atoph5 -n master.ph5 -r ../rt125a/I2183RAW.TRD
 metadatatoph5 -n master.ph5 -f ../metadata/station.xml
@@ -71,7 +71,7 @@ mkdir das         # das table sample_rate_multiplier_i=0
 cd array_das
 initialize_ph5 -n master.ph5
 keftoph5 -n master.ph5 -k ../../../metadata/experiment.kef
-segdtoph5 -n master.ph5 -r ../../../segd/1111.0.0.fcnt
+segdtoph5 -n master.ph5 -r ../../../segd/fairfield/1111.0.0.fcnt
 cp master.ph5 ../das/
 echo "y" | delete_table -n master.ph5 -D 1X1111
 keftoph5 -n master.ph5 -k ../../../metadata/Das_t_1X1111.0.0_SRM0.kef
diff --git a/environment-gui.yml b/environment-gui.yml
index 7e9efd49..d07e486b 100644
--- a/environment-gui.yml
+++ b/environment-gui.yml
@@ -11,6 +11,7 @@ dependencies:
  - pyproj
  - psutil
  - vispy
+ - astropy
  - testfixtures  # development
  - pyside2
  - pip=20.1.1
diff --git a/environment.yml b/environment.yml
index 2f82a785..8863270d 100644
--- a/environment.yml
+++ b/environment.yml
@@ -11,6 +11,7 @@ dependencies:
  - pyproj
  - psutil
  - vispy
+ - astropy
  - testfixtures  # development
  - pip=20.1.1
  - pip:
diff --git a/ph5/core/segd_h_smartsolo.py b/ph5/core/segd_h_smartsolo.py
new file mode 100755
index 00000000..e227cf86
--- /dev/null
+++ b/ph5/core/segd_h_smartsolo.py
@@ -0,0 +1,344 @@
+#!/usr/bin/env pnpython3
+#
+# A low level SEG-D library
+# SmartSolo SEG-D 2.1
+# based on segd_h.py by Steve Azevedo
+#
+# Lan Dam, March 2021
+#
+
+import exceptions
+import sys
+import construct
+import bcd_py
+
+PROG_VERSION = "2021.130"
+
+
+def __version__():
+    print PROG_VERSION
+
+
+class HeaderError (exceptions.Exception):
+    def __init__(self, args=None):
+        self.args = args
+
+
+def convert_fixed_point_binary_16bit(uint):
+    """
+    convert fixed point binary 16 bit to float
+    """
+    return uint/float(2**16)
+
+
+def unsigned2signed(uint, bitnum):
+    """
+    convert unsigned binary integer to signed binary integer
+    """
+    return uint - (uint >> (bitnum-1)) * 2**bitnum
+
+
+def convert_bcd_field(val, bit_no):
+    bcd = val
+    if sys.byteorder == 'little':
+        bcd = construct.ULInt64("xxx").build(bcd)
+    else:
+        bcd = construct.UBInt64("xxx").build(bcd)
+    ret = bcd_py.bcd2int(bcd, 0, bit_no/4)      # nibble=4bit
+
+    return ret
+
+
+def get_doy(doy, ret):
+    """
+    combine all doy parts to make doy integer,
+    delete all doy parts, replace with integer doy
+    : doy param: list of all field start with 'first_shot_point_doy'
+    : ret param: OrderedDict returned from Construct.parse()
+    """
+    doy_str = ''
+    for d in doy:
+        doy_str += str(d[1])
+        del ret[d[0]]           # delete key
+    ret.__keys_order__.insert(ret.__keys_order__.index('hour_of_day_utc'),
+                              'first_shot_point_doy')
+    ret['first_shot_point_doy'] = int(doy_str)
+    return ret
+
+
+def general_header_block(keys):
+    swap = True
+    if sys.byteorder == 'big':
+        swap = False
+    fields = []
+    # swap with bcd only
+    for k in keys:
+        if len(k) < 3 or k[2] == 'signed':
+            f = construct.BitField(k[0], k[1])
+        elif k[2] == 'bcd':
+            f = construct.BitField(k[0], k[1], swapped=swap)
+        else:
+            f = construct.BitField(k[0], k[1])
+        fields.append(f)
+    BIN = construct.BitStruct("BIN", *fields)
+    return BIN
+
+
+class Header_block (object):
+    keys = ()
+
+    def __init__(self, endian='big'):
+        self.endian = endian
+        for c in Header_block.keys:
+            self.__dict__[c[0]] = 0
+
+    def set(self, keyval):
+        for k in keyval.keys():
+            if k in self.__dict__:
+                self.__dict__[k] = keyval[k]
+            else:
+                raise HeaderError(
+                    "Warning: Attempt to set unknown variable\
+                    %s in trace header.\n" % k)
+
+    def get(self):
+        if self.endian == 'big':
+            t = general_header_block(self.keys)
+        else:
+            raise HeaderError("Little endian byte order not supported.")
+        return t.build(self)
+
+    def parse(self, buf):
+        if self.endian == 'big':
+            t = general_header_block(self.keys)
+        else:
+            raise HeaderError("Little endian byte order not supported.")
+        ret = t.parse(buf)
+        doy = []
+        has_doy = False
+        for k in self.keys:
+            if 'first_shot_point_doy' in k[0]:
+                doy.append((k[0], ret[k[0]]))
+                has_doy = True
+            if 'fraction' in k[0]:
+                ret[k[0]] = convert_fixed_point_binary_16bit(ret[k[0]])
+            if len(k) < 3 or k[0] in ['record_length']:
+                continue
+            if k[2] == 'bcd':
+                ret[k[0]] = convert_bcd_field(ret[k[0]], k[1])
+            elif k[2] == 'signed':
+                ret[k[0]] = unsigned2signed(ret[k[0]], k[1])
+        if has_doy:
+            get_doy(doy, ret)
+        return ret
+
+
+class General_header_block (Header_block):
+
+    def __init__(self, n):
+        super(General_header_block, self).__init__()
+        if n == 0:
+            # (key, number of bits, bcd/signed/_)
+            self.keys = (
+                ("file_number", 2*8, 'bcd'),                        # 0-9999
+                ("data_sample_format_code", 2*8, 'bcd'),            # 8058
+                ("general_constant_1", 8, 'bcd'),
+                ("general_constant_2", 8, 'bcd'),
+                ("general_constant_3", 8, 'bcd'),
+                ("general_constant_4", 8, 'bcd'),
+                ("general_constant_5", 8, 'bcd'),
+                ("general_constant_6", 8, 'bcd'),                   # 05
+                ("first_shot_point_year", 8, 'bcd'),                # 0-99
+                ("number_additional_general_header_blocks", 8/2),   # 2
+                # defined bcd in doc but it doesn't give correct result w/ bcd
+                ("first_shot_point_doy1", 8/2),                      # 1-366
+                ("first_shot_point_doy2", 8/2),
+                ("first_shot_point_doy3", 8/2),
+                # doc: 1 bytes for HHMMSS
+                # but Byte No.=14-16 which actually 3 bytes
+                ("hour_of_day_utc", 8, 'bcd'),
+                ("minute_of_hour_utc", 8, 'bdc'),
+                ("second_of_minute_utc", 8, 'bdc'),
+                ("manufactures_code", 8, 'bcd'),                    # 0x61
+                ("manufactures_sn", 2*8, 'bcd'),                    # 0
+                ("bytes_per_scan", 3*8, 'bcd'),
+                # 4:.25ms; 8:.5ms; 10:1ms; 20:2ms; 40: 4ms
+                ("base_scan_interval", 8),
+                # 0 = Untested; 4=135degrees; 8= 315 degrees; 1=Zero
+                # 5= 180 degree; 12= unassigned; 2= 45 degrees
+                # 6= 225 degrees; 3= 90 degrees; 7= 270 degrees
+                ("polarity", 8/2),
+                # 0: SG; 1:RG; 2:CG
+                # doc 1-1/2 but byte is 24L only
+                ("gather_type", 8/2),
+                ("not_used", 8),
+                # 8:normal; 2:test record
+                ("record_type", 8/2),                               # 8
+                # extended_record_length used
+                ("record_length", 3*8/2, 'bcd'),                    # FFF
+                ("scan_types_per_record", 8, 'bcd'),                # 1
+                ("chan_sets_per_scan", 8, 'bcd'),                   # 16
+                ("number_sample_skew_32_extensions", 8, 'bcd'),     # 00
+                ("extended_header_length", 8, 'bcd'),
+                ("external_header_length", 8, 'bcd'))
+
+        if n == 1:
+            self. keys = (
+                ("extended_file_number", 3*8),
+                ("extended_channel_set_per_scan_type", 2*8),        # 0
+                ("extended_header_blocks", 2*8),                    # 0
+                # doc 3bytes but say at byte 8-9 which is 2 bytes
+                ("number_32-byte_fields_in_external_header", 2*8),  # 0
+                ("not_used", 8),
+                ("SEGD_revision_number1", 8),                       # 1.0
+                ("SEGD_revision_number2", 8),  # 1.0
+                ("number_32-byte_general_trailer_blocks", 2*8),     # 0
+                # 0-128000ms
+                ("extended_record_length", 3*8),
+                ("undefined1", 8),                                  # 0
+                ("general_header_block_number", 8),                 # 2
+                ("undefined2", 13*8))                               # 0
+        if n == 2:
+            self.keys = (
+                ("expanded_file_number", 3*8),
+                ("source_line_number_integer", 3*8),
+                ("source_line_number_fraction", 2*8),
+                ("source_point_number_integer", 3*8),
+                ("source_point_number_fraction", 2*8),
+                ("source_point_index", 8),
+                ("phase_control", 8),                               # 0
+                ("vibrator_type", 8),                               # 0
+                ("phase_angle", 2*8),                               # 0
+                ("general_header_block_number", 8),                 # 3
+                ("source_set_number_default", 8),
+                ("not_used", 12*8))                                 # 0
+
+
+class Channel_set_descriptor (Header_block):
+    # (key, number of bits, bcd/signed/_)
+    keys = (("scan_type_number", 8, 'bcd'),                         # 01
+            ("chan_set_number", 8, 'bcd'),
+            ("chan_set_start_time_ms", 2*8),                        # ms
+            ("chan_set_end_time_ms", 2*8),                          # ms
+            ("optional_MP_factor_extension_byte", 8),
+            ("MP_factor_descaler_multiplier", 8),
+            ("number_of_chans_in_chan_set", 2*8, 'bcd'),
+            # 1=Seis; 9=Aux
+            ("chan_type_code", 8/2),
+            ("not_used", 8/2),                                      # 0
+            ("number_sub-scans", 8/2, 'bcd'),                       # 0
+            ("gain_control_type", 8/2),                             # 3
+            ("alias_filter_freq_Hz", 2*8, 'bcd'),
+            ("alias_filter_slope_dB_per_octave", 2*8, 'bcd'),
+            ("low_cut_filter_freq_Hz", 2*8, 'bcd'),
+            ("low_cut_filter_slope_db_per_octave", 2*8, 'bcd'),
+            ("first_notch_filter_freq", 2*8, 'bcd'),                # 0
+            ("second_notch_filter_freq", 2*8, 'bcd'),               # 0
+            ("third_notch_filter_freq", 2*8, 'bcd'),                # 0
+            ("extended_chan_set_number", 2*8),                      # 0
+            ("extended_header_flag", 8/2),                          # 0
+            ("number_trace_header_extensions", 8/2),                # 7
+            ("vertical_stack_size", 8),                             # 1
+            ("streamer_cable_number", 8),                           # 0 in land
+            ("array_forming", 8))                                   # 1
+
+
+class Extended_header_block (Header_block):
+    # (key, number of bits, bcd/signed/_)
+    keys = (("acquisition_length", 4*8),
+            ("sample_rate_microsec", 4*8),
+            ("number_of_traces", 4*8),
+            ("number_of_samples_in_traces", 4*8),
+            ("number_of_seis_traces", 4*8),
+            ("number_of_auxes", 4*8),
+            ("number_of_dead_seis_traces", 4*8),
+            ("number_of_live_seis_traces", 4*8),
+            # 0: no source, 1: impulsive
+            ("source_type", 4*8),
+            # 0:shot/ 1:receiver/ 2:continuous receiver
+            ("gather_type", 2*8),
+            ("reserved", 986*8))
+
+
+class External_header_block (Header_block):
+    # (key, number of bits, bcd/signed/_)
+    keys = (("field_file_number", 4*8),                         # External FFID
+            ("file_number", 4*8),
+            ("souce_easting_cm", 4*8),
+            ("source_northing_cm", 4*8),
+            ("source_elevation_cm", 4*8),
+            ("source_or_receiver_GPS_lat_integer", 4*8),        # DDMMSS.sss
+            ("source_or_receiver_GPS_lat_fraction", 2*8),       # DDMMSS.sss
+            ("source_or_receiver_GPS_lon_integer", 4*8),        # DDMMSS.sss
+            ("source_or_receiver_GPS_lon_fraction", 2*8),       # DDMMSS.sss
+            ("TB_GPS_time_ms", 8*8),
+            ("not_used", 2*8),
+            ("source_GPS_height_cm", 4*8),
+            ("reserved", 978*8))
+
+
+class Trace_header (Header_block):
+    # (key, number of bits, bcd/signed/_)
+    # filenumber = 0-9999, if >9999, set to FFFF, extended file number is used
+    keys = (("4_digit_file_number", 2*8, 'bcd'),
+            ("scan_type", 8, 'bcd'),                            # 01
+            ("channel_set", 8, 'bcd'),
+            ("trace_number", 2*8, 'bcd'),
+            ("first_timing_word", 3*8),                         # Bin24
+            ("trace_extension_blocks", 8),                      # 7 Bin8
+            ("sample_skew_value", 8),
+            # 00 No edit applied; 02: muted or dead prior to qcquisition
+            ("trace_edit_code", 8),
+            ("time_break_window", 3*8),                         # Bin24
+            ("extended_channel_set", 2*8),                      # 0 Bin16
+            ("extended_file_number", 3*8))                      # Bin16
+
+
+class Trace_header_extension(Header_block):
+
+    def __init__(self, n):
+        # (key, number of bits, bcd/signed/_)
+        super(Trace_header_extension, self).__init__()
+        if n == 0:
+            self.keys = (
+                ("receiver_line_number", 3*8, 'signed'),
+                ("receiver_point_number", 3*8, 'signed'),
+                ("receiver_point_index", 8),
+                ("samples_per_trace", 3*8),
+                ("extended_receiver_line_number_integer", 3*8, 'signed'),
+                ("extended_receiver_line_number_fraction", 2*8),
+                ("extended_receiver_point_number_integer", 3*8, 'signed'),
+                ("extended_receiver_point_number_fraction", 2*8),
+                ("not_used", 12*8))
+        if n == 1:
+            self.keys = (
+                ("TB_GPS_time_microsec", 8*8),
+                ("TB offset_microsec", 2*8),
+                ("external_file_id", 4*8),
+                ("not_used", 14*8),
+                ("extended_trace_number", 4*8))
+        if n == 2:
+            self.keys = (
+                ("receiver_easting_4_bytes_integer_cm", 4*8),
+                ("receiver_northing_4_bytes_integer_cm", 4*8),
+                ("receiver_elevation_4_bytes_integer_cm", 4*8),
+                ("not_used", 20*8))
+        if n == 3:
+            self.keys = (
+                ("IGU_GPS_lat_integer", 4*8),
+                ("IGU_GPS_lat_fraction", 2*8),
+                ("IGU_GPS_lon_integer", 4*8),
+                ("IGU_GPS_lon_fraction", 2 * 8),
+                ("IGU_GPS_height", 4*8),                              # float
+                ("not_used", 16*8))
+        if n == 4:
+            self.keys = (("not_used", 32*8),)
+        if n == 5:
+            self.keys = (
+                ("unit_type", 8),
+                ("unit_serial_number", 4*8),
+                ("channel_number", 8),
+                ("not_used", 26*8))
+        if n == 6:
+            self.keys = (
+                ("not_used", 32*8),)
diff --git a/ph5/core/segdreader.py b/ph5/core/segdreader.py
index 26355663..1f7b6137 100755
--- a/ph5/core/segdreader.py
+++ b/ph5/core/segdreader.py
@@ -13,7 +13,7 @@
 import numpy as np
 from ph5.core import segd_h
 
-PROG_VERSION = '2018.268'
+PROG_VERSION = "2021.112"
 LOGGER = logging.getLogger(__name__)
 
 
@@ -24,23 +24,17 @@ def __init__(self, args=None):
 
 class ReelHeaders (object):
     '''   Container to hold receiver record related headers   '''
-    __slots__ = ['storage_unit_label', 'general_header_block_1',
-                 'general_header_block_2', 'channel_set_descriptor',
-                 'extended_header_1', 'extended_header_2', 'extended_header_3',
-                 'extended_header_4', 'external_header',
-                 'external_header_shot', 'general_header_block_N',
+    __slots__ = ['storage_unit_label', 'general_header_blocks',
+                 'channel_set_descriptor', 'extended_headers',
+                 'external_header',
+                 'external_header_shot',
                  'channel_set_to_streamer_cable_map']
 
     def __init__(self):
         self.storage_unit_label = None
-        self.general_header_block_1 = None
-        self.general_header_block_2 = None
-        self.general_header_block_N = []
+        self.general_header_blocks = []
         self.channel_set_descriptor = []
-        self.extended_header_1 = None
-        self.extended_header_2 = None
-        self.extended_header_3 = None
-        self.extended_header_4 = []
+        self.extended_headers = []
         self.external_header = None
         self.external_header_shot = []
         self.channel_set_to_streamer_cable_map = None
@@ -48,15 +42,26 @@ def __init__(self):
 
 class TraceHeaders (object):
     '''   Container to hold trace related headers   '''
-    __slots__ = ['trace_header', 'trace_header_N']
+    __slots__ = ['trace_header', 'trace_header_N',
+                 'line_number', 'event_number',
+                 'trace_epoch', 'preamp_gain_db',
+                 'lat', 'lon', 'ele']
 
     def __init__(self):
         self.trace_header = None
         self.trace_header_N = []
+        self.line_number = None
+        self.event_number = None
+        self.trace_epoch = None
+        self.lat = None
+        self.lon = None
+        self.ele = None
+        self.preamp_gain_db = None
 
 
 class Reader ():
     def __init__(self, infile=None):
+        self.manufacturer = 'FairfieldNodal'
         self.infile = infile
         self.FH = None
         self.endianess = 'big'  # SEG-D is always big endian(?)
@@ -67,6 +72,10 @@ def __init__(self, infile=None):
         self.extended_header_blocks = None
         self.external_header_blocks = None
         self.sample_rate = None
+        # From Extended headers
+        self.deploy_epoch = None
+        self.pickup_epoch = None
+        self.id_number = None
         # From Channel set headers
         self.channel_set_start_time_sec = None
         self.channel_set_end_time_sec = None
@@ -90,10 +99,9 @@ def read_buf(self, size):
             buf = self.FH.read(size)
         except Exception as e:
             LOGGER.error(e)
-
-        if not buf:
             self.FH.close()
-        else:
+
+        if buf:
             self.bytes_read += len(buf)
 
         return buf
@@ -203,52 +211,53 @@ def read_external_header_shot(self):
     def process_general_headers(self):
         self.reel_headers = ReelHeaders()
 
-        self.reel_headers.general_header_block_1 =\
-            self.read_general_header_block_1()
-        self.reel_headers.general_header_block_2 =\
-            self.read_general_header_block_2()
+        self.reel_headers.general_header_blocks.append(
+            self.read_general_header_block_1())
+        self.reel_headers.general_header_blocks.append(
+            self.read_general_header_block_2())
         # Set file number
-        if self.reel_headers.general_header_block_1.file_number == 0xFFFF:
+        if self.reel_headers.general_header_blocks[0].file_number == 0xFFFF:
             self.file_number = self.reel_headers.\
-                read_general_header_block_2.extended_file_number
+                read_general_header_blocks[1].extended_file_number
         else:
             self.file_number = self.reel_headers.\
-                general_header_block_1.file_number
+                general_header_blocks[0].file_number
         # Set record length
-        if self.reel_headers.general_header_block_1.record_length == 0xFFF:
+        if self.reel_headers.general_header_blocks[0].record_length == 0xFFF:
             self.record_length_sec = self.reel_headers.\
-                general_header_block_2.extended_record_length
+                general_header_blocks[1].extended_record_length
         else:
             self.record_length_sec = self.reel_headers.\
-                general_header_block_1.record_length * 0.512
+                general_header_blocks[0].record_length * 0.512
         # Set number of channel sets
-        if self.reel_headers.general_header_block_1.chan_sets_per_scan == 0xFF:
+        if self.reel_headers.general_header_blocks[
+                0].chan_sets_per_scan == 0xFF:
             self.chan_sets_per_scan = self.reel_headers.\
-                general_header_block_2.extended_chan_sets_per_scan_type
+                general_header_blocks[1].extended_chan_sets_per_scan_type
         else:
             self.chan_sets_per_scan = self.reel_headers.\
-                general_header_block_1.chan_sets_per_scan
+                general_header_blocks[0].chan_sets_per_scan
         # Number of extended headers
-        if self.reel_headers.general_header_block_1.\
+        if self.reel_headers.general_header_blocks[0].\
            number_extended_header_blocks == 0xFF:
             self.extended_header_blocks = self.reel_headers.\
-                general_header_block_2.extended_header_blocks
+                general_header_blocks[1].extended_header_blocks
         else:
             self.extended_header_blocks = self.reel_headers.\
-                general_header_block_1.number_extended_header_blocks
+                general_header_blocks[0].number_extended_header_blocks
         # Number of external headers
-        if self.reel_headers.general_header_block_1.\
+        if self.reel_headers.general_header_blocks[0].\
            number_external_header_blocks == 0xFF:
             self.external_header_blocks = self.\
-                reel_headers.general_header_block_2.external_header_blocks
+                reel_headers.general_header_blocks[1].external_header_blocks
         else:
             self.external_header_blocks = self.\
-                reel_headers.general_header_block_1.\
+                reel_headers.general_header_blocks[0].\
                 number_external_header_blocks
         # Get sample rate from base scan interval (LSB is 1/16 milli-second)
         self.sample_rate = int(
             (1. / (self.reel_headers.
-                   general_header_block_1.base_scan_interval / 16.)) * 1000.)
+                   general_header_blocks[0].base_scan_interval / 16.)) * 1000.)
 
     def process_channel_set_descriptors(self):
         def create_key():
@@ -279,15 +288,23 @@ def create_key():
 
     def process_extended_headers(self):
         if self.extended_header_blocks > 0:
-            self.reel_headers.extended_header_1 = self.read_extended_header_1()
+            self.reel_headers.extended_headers.append(
+                self.read_extended_header_1())
         if self.extended_header_blocks > 1:
-            self.reel_headers.extended_header_2 = self.read_extended_header_2()
+            self.reel_headers.extended_headers.append(
+                self.read_extended_header_2())
         if self.extended_header_blocks > 2:
-            self.reel_headers.extended_header_3 = self.read_extended_header_3()
+            self.reel_headers.extended_headers.append(
+                self.read_extended_header_3())
         n = self.extended_header_blocks - 3
         for i in range(n):
-            self.reel_headers.extended_header_4.append(
-                self.read_extended_header_4)
+            self.reel_headers.extended_headers.append(
+                self.read_extended_header_4())
+        self.deploy_epoch = self.reel_headers.extended_headers[
+                                0].epoch_deploy / 1000000.
+        self.pickup_epoch = self.reel_headers.extended_headers[
+                                0].epoch_pickup / 1000000.
+        self.id_number = self.reel_headers.extended_headers[0]['id_number']
 
     def process_external_headers(self):
         self.reel_headers.external_header = self.read_external_header()
@@ -438,8 +455,24 @@ def process_trace_headers(self):
                 self.read_trace_header_10())
         # Note: SEG-D 2.1 allows a total of 15 trace header extensions.
         # We only read 10 as per Fairfield rg1.6
-        self.samples = self.trace_headers.trace_header_N[0][
-            'samples_per_trace']
+
+        self.trace_headers.line_number = self.trace_headers.trace_header_N[
+            4].line_number
+        self.trace_headers.event_number = self.trace_headers.trace_header_N[
+            1].shot_point
+        self.trace_headers.trace_epoch = self.trace_headers.trace_header_N[
+            2].shot_epoch
+        self.trace_headers.preamp_gain_db = self.trace_headers.trace_header_N[
+            3].preamp_gain_db
+        self.trace_headers.lat = self.trace_headers.trace_header_N[
+            4].receiver_point_Y_final
+        self.trace_headers.lon = self.trace_headers.trace_header_N[
+            4].receiver_point_X_final
+        self.trace_headers.ele = self.trace_headers.trace_header_N[
+            4].receiver_point_depth_final
+
+        self.samples = self.trace_headers.trace_header_N[
+            0].samples_per_trace
 
         return self.samples
 
@@ -456,7 +489,7 @@ def read_trace(self, number_of_samples):
               8058 -- 32 bit IEEE float   '''
 
         f = self.trace_fmt = self.reel_headers.\
-            general_header_block_1.data_sample_format_code
+            general_header_blocks[0].data_sample_format_code
 
         bytes_per_sample = 4  # Assumes 32 bit IEEE floats
         buf = self.read_buf(bytes_per_sample * number_of_samples)
@@ -478,7 +511,7 @@ def read_trace(self, number_of_samples):
 
         return ret
 
-    def process_trace(self):
+    def process_trace(self, trace_index):
         samples = self.process_trace_headers()
         ret = self.read_trace(samples)
         cs = self.trace_headers.trace_header.channel_set
@@ -498,23 +531,6 @@ def isEOF(self):
         except EOFError:
             self.FH.close()
             return True
-
-    def isSEGD(self, expected_manufactures_code=0):
-        '''   Check to see if we are a Fairfield SEG-D file.   '''
-        ret = False
-        try:
-            c = self.read_general_header_block_1()
-            self.FH.seek(0)
-            if c['manufactures_code'] == expected_manufactures_code:
-                ret = True
-            else:
-                if self.FH is not None:
-                    self.FH.close()
-        except Exception as e:
-            raise InputsError(e.message)
-
-        return ret
-
 #
 # Mix in's
 #
diff --git a/ph5/core/segdreader_smartsolo.py b/ph5/core/segdreader_smartsolo.py
new file mode 100755
index 00000000..42f4f582
--- /dev/null
+++ b/ph5/core/segdreader_smartsolo.py
@@ -0,0 +1,371 @@
+#!/usr/bin/env pnpython3
+#
+# A class to read SmartSolo SEG-D Version
+# based on SmartSolo Software User Manual Version 1.3
+# and segdreader.py by Steve Azevedo
+#
+# Lan Dam, March 2021
+#
+
+import sys
+import logging
+import os
+import exceptions
+
+import numpy as np
+try:
+    from astropy.time import Time as asTime
+except ImportError:
+    errmsg = ("astropy package is needed to run this command. "
+              "Please run 'conda install astropy' to install it.")
+    raise ImportError(errmsg)
+
+from ph5.core import segd_h_smartsolo as segd_h
+from ph5.core.timedoy import TimeDOY
+
+PROG_VERSION = "2021.155"
+LOGGER = logging.getLogger(__name__)
+
+
+class InputsError (exceptions.Exception):
+    def __init__(self, args=None):
+        self.args = args
+
+
+class ReelHeaders (object):
+    '''   Container to hold receiver record related headers   '''
+    __slots__ = ['storage_unit_label', 'general_header_blocks',
+                 'channel_set_descriptor', 'extended_headers',
+                 'external_header',
+                 'external_header_shot',
+                 'channel_set_to_streamer_cable_map']
+
+    def __init__(self):
+        self.storage_unit_label = None
+        self.general_header_blocks = []
+        self.channel_set_descriptor = []
+        self.extended_headers = []
+        self.external_header = None
+        self.external_header_shot = []
+        self.channel_set_to_streamer_cable_map = None
+
+
+class TraceHeaders (object):
+    '''   Container to hold trace related headers   '''
+    __slots__ = ['trace_header', 'trace_header_N',
+                 'line_number', 'receiver_point',
+                 'event_number', 'trace_epoch',
+                 'preamp_gain_db',
+                 'lat', 'lon', 'ele']
+
+    def __init__(self):
+        self.trace_header = None
+        self.trace_header_N = []
+        self.line_number = None
+        self.receiver_point = None
+        self.event_number = None
+        self.trace_epoch = None
+        self.lat = None
+        self.lon = None
+        self.ele = None
+        self.preamp_gain_db = None
+
+
+class Reader ():
+    def __init__(self, infile=None):
+        self.manufacturer = 'SmartSolo'
+        self.infile = infile
+        self.FH = None
+        self.endianess = 'big'  # SEG-D is always big endian(?)
+        # From General headers
+        self.file_number = None
+        self.record_length_sec = None
+        self.chan_sets_per_record = None
+        self.sample_rate = None
+        self.deploy_epoch = None
+        # From Extended headers
+        self.pickup_epoch = None
+        # From Channel set headers
+        self.channel_set_start_time_sec = None
+        self.channel_set_end_time_sec = None
+        self.preamp_gain_db = None
+        # From trace headers
+        self.samples = None
+        self.bytes_read = 0
+        self.id_number = None
+
+    def open_infile(self):
+        try:
+            self.FH = open(self.infile)
+        except Exception as e:
+            LOGGER.error(e)
+            self.FH = None
+
+    def read_buf(self, size):
+        buf = None
+        if not self.FH:
+            self.open_infile()
+
+        try:
+            buf = self.FH.read(size)
+        except Exception as e:
+            LOGGER.error(e)
+            self.FH.close()
+
+        if buf:
+            self.bytes_read += len(buf)
+
+        return buf
+
+    def name(self):
+        '''   Return name of open file   '''
+        if self.FH:
+            return self.FH.name
+        else:
+            return None
+
+    def read_block(self, size, block_obj):
+        buf = self.read_buf(size)
+        container = block_obj.parse(buf)
+        return container
+
+    def get_deploy_epoch(self, ghb):
+        t = TimeDOY(year=2000 + ghb.first_shot_point_year,
+                    doy=ghb.first_shot_point_doy,
+                    hour=ghb.hour_of_day_utc,
+                    minute=ghb.minute_of_hour_utc,
+                    second=ghb.second_of_minute_utc)
+        return t.epoch()
+
+    def degree2decimal(self, integer, fraction):
+        """
+        lat degree: DDMMSS.sss
+        lon degree: DDDMMSS.sss
+        decimal = deg + min/60 + sec/3600
+        """
+        degree_str = "%.3f" % (integer + fraction)
+        sec = float(degree_str[-6:])
+        min = float(degree_str[-8:-6])
+        deg = float(degree_str[:-8])
+        decimal = deg + min/60. + sec/3600.
+        return decimal
+
+    def process_general_headers(self):
+        self.reel_headers = ReelHeaders()
+
+        for i in range(3):
+            self.reel_headers.general_header_blocks.append(
+                self.read_block(32, segd_h.General_header_block(i)))
+
+        # Set record length
+        if self.reel_headers.general_header_blocks[0].record_length == 0xFFF:
+            self.record_length_sec = self.reel_headers. \
+                general_header_blocks[1].extended_record_length
+        else:
+            self.record_length_sec = self.reel_headers.general_header_blocks[
+                                         0].record_length * 0.512
+        # Set number of channel sets
+        if self.reel_headers.general_header_blocks[
+                0].chan_sets_per_scan == 0xFF:
+            self.chan_sets_per_scan = self.reel_headers. \
+                general_header_blocks[1].extended_chan_sets_per_scan_type
+        else:
+            self.chan_sets_per_scan = self.reel_headers. \
+                general_header_blocks[0].chan_sets_per_scan
+
+        self.sample_rate = int(
+            (1. / (self.reel_headers.
+                   general_header_blocks[0].base_scan_interval / 16.)) * 1000.)
+
+        self.deploy_epoch = self.get_deploy_epoch(
+            self.reel_headers.general_header_blocks[0])
+
+    def process_channel_set_descriptors(self):
+        """ name in SmartSolo Doc.: Scan Type Header """
+        def create_key():
+            # Create a mapping between channel sets to streamer cable numbers
+            kv = {}
+            for cs in self.reel_headers.channel_set_descriptor:
+                k = cs.chan_set_number
+                v = cs.streamer_cable_number
+                kv[k] = v
+
+            return kv
+
+        for i in range(self.chan_sets_per_scan):
+            cs = self.read_block(32, segd_h.Channel_set_descriptor())
+            self.reel_headers.channel_set_descriptor.append(cs)
+            # ***   Should we get current channel set number   ***
+            # Channel set start time in seconds
+            self.channel_set_start_time_sec = \
+                self.reel_headers.channel_set_descriptor[
+                    i]. chan_set_start_time_ms / 1000
+            # Channel set end time in seconds
+            self.channel_set_end_time_sec = \
+                self.reel_headers.channel_set_descriptor[
+                    i].chan_set_end_time_ms / 1000
+            # ***   Calculate scale factor for mili-volts.
+            # SmartSolo data recorded as mili-volts   ***
+        self.reel_headers.channel_set_to_streamer_cable_map = create_key()
+        # Calculate preamp_gain
+        self.preamp_gain_db = None
+        mp = self.reel_headers.channel_set_descriptor[
+            0].MP_factor_descaler_multiplier
+        self.MP_factor_descaler_multiplier = mp
+        mp_hex = "{0:x}".format(mp)
+        if mp == 0:         # 0x0000
+            self.preamp_gain_db = 0
+        elif mp == 132:     # 0x0084
+            self.preamp_gain_db = 6
+        elif mp == 136:     # 0x0088
+            self.preamp_gain_db = 12
+        elif mp == 140:     # 0x008c
+            self.preamp_gain_db = 18
+        elif mp == 144:     # 0x0090
+            self.preamp_gain_db = 24
+        elif mp == 148:     # 0x0094
+            self.preamp_gain_db = 30
+        elif mp == 152:     # 0x0098
+            self.preamp_gain_db = 36
+        else:
+            LOGGER.error("MP_factor_descaler_multiplier is Ox{0} while it "
+                         "should be one of the following values:\n"
+                         "0x0000,0x0084,0x0088,0x008c,0x0090,0x0094,"
+                         "0x0098".format(mp_hex))
+
+    def process_extended_headers(self):
+        self.reel_headers.extended_headers.append(
+            self.read_block(1024, segd_h.Extended_header_block()))
+        sample_rate = int((10**6) / self.reel_headers.extended_headers[0]
+                          .sample_rate_microsec)
+        if sample_rate != self.sample_rate:
+            raise InputsError("Sample rate in Extended Header[0] is conflict"
+                              "with base_scan_interval")
+        number_of_traces = self.reel_headers.extended_headers[
+            0].number_of_traces
+        number_of_samples_in_traces = self.reel_headers.extended_headers[
+            0].number_of_samples_in_traces
+        self.pickup_epoch = self.deploy_epoch + (
+            number_of_samples_in_traces * number_of_traces / sample_rate
+        )
+
+    def process_external_headers(self):
+        self.reel_headers.external_header = self.read_block(
+            1024, segd_h.External_header_block())
+
+    def process_trace_headers(self):
+        self.trace_headers = TraceHeaders()
+
+        self.trace_headers.trace_header = self.read_block(
+            20, segd_h.Trace_header())
+        n = self.trace_headers.trace_header.trace_extension_blocks
+        for i in range(n):
+            self.trace_headers.trace_header_N.append(
+                self.read_block(32, segd_h.Trace_header_extension(i)))
+
+        self.id_number = self.trace_headers.trace_header_N[
+            5].unit_serial_number
+        self.trace_headers.event_number = \
+            self.trace_headers.trace_header.trace_number
+
+        thN0 = self.trace_headers.trace_header_N[0]
+        self.samples = thN0.samples_per_trace
+        # ignore fraction part
+        self.trace_headers.line_number = \
+            thN0.extended_receiver_line_number_integer
+        self.trace_headers.receiver_point = \
+            thN0.extended_receiver_point_number_integer
+
+        thN3 = self.trace_headers.trace_header_N[3]
+        self.trace_headers.lat = self.degree2decimal(thN3.IGU_GPS_lat_integer,
+                                                     thN3.IGU_GPS_lat_fraction)
+        self.trace_headers.lon = self.degree2decimal(thN3.IGU_GPS_lon_integer,
+                                                     thN3.IGU_GPS_lon_fraction)
+        self.trace_headers.ele = thN3.IGU_GPS_height
+        self.trace_headers.preamp_gain_db = self.preamp_gain_db
+        TB_GPS_time_time_sec = self.trace_headers.trace_header_N[
+                                  1].TB_GPS_time_microsec/1000000.
+        # Use astropy package to convert time from gps to utc
+        # https: // docs.astropy.org / en / stable / time /
+        gps_time = asTime(TB_GPS_time_time_sec, format='gps')
+        trace_epoch_sec = asTime(gps_time, format='unix', scale='utc').value
+        trace_epoch_ms = trace_epoch_sec * 10.**3
+        self.trace_headers.trace_epoch = trace_epoch_sec * 10.**6   # microsec
+        number_of_samples_in_traces = self.trace_headers.trace_header_N[
+            0].samples_per_trace
+        trace_endtime_ms = trace_epoch_ms + (
+            number_of_samples_in_traces / self.sample_rate)
+
+        trace_endtime = trace_endtime_ms / float(
+            10**(len(str(trace_endtime_ms)) - len(str(int(self.pickup_epoch))))
+        )
+
+        if self.pickup_epoch < trace_endtime:
+            self.pickup_epoch = trace_endtime
+
+        return self.samples
+
+    def read_trace(self, number_of_samples):
+        '''   Read data trace and return as numpy array
+              8015 -- 20 bit binary
+              8022 -- 8 bit quanternary
+              8024 -- 16 bit quanternary
+              8036 -- 24 bit 2s compliment integer
+              8038 -- 32 bit 2s compliment integer
+              8042 -- 8 bit hexidecimal
+              8044 -- 16 bit hexidecimal
+              8048 -- 32 bit hexidecimal
+              8058 -- 32 bit IEEE float   '''
+
+        f = self.trace_fmt = self.reel_headers.\
+            general_header_blocks[0].data_sample_format_code
+
+        bytes_per_sample = 4  # Assumes 32 bit IEEE floats
+        buf = self.read_buf(bytes_per_sample * number_of_samples)
+        # IEEE floats - 4 byte - Should be big endian
+        if f == 8058:
+            try:
+                if self.endianess != sys.byteorder:
+                    # Swap 4 byte
+                    ret = np.fromstring(buf, dtype=np.float32)
+                    ret = ret.byteswap()
+                else:
+                    ret = np.fromstring(buf, dtype=np.float32)
+            except Exception as e:
+                raise InputsError(
+                    "Error: Could not read data trace: {0}".format(e))
+
+        else:
+            raise InputsError("Format code of {0} not supported!".format(f))
+
+        return ret
+
+    def process_trace(self, trace_index):
+
+        if trace_index == 0:
+            """
+            With SmartSolo, segd2ph5 need to run process_trace_headers()
+            to get some info in trace_header at the beginning
+            => not run self.process_trace_headers() for the first trace
+            """
+            samples = self.samples
+        else:
+            samples = self.process_trace_headers()
+        ret = self.read_trace(samples)
+        cs = self.trace_headers.trace_header.channel_set
+        # Return trace and channel set number
+        return ret, cs
+
+    def isEOF(self):
+        if self.FH.closed:
+            return True
+
+        try:
+            n = len(self.FH.read(20))
+            if n != 20:
+                raise EOFError
+            self.FH.seek(-20, os.SEEK_CUR)
+            return False
+        except EOFError:
+            self.FH.close()
+            return True
diff --git a/ph5/entry_points.py b/ph5/entry_points.py
index 2717666d..0e37b558 100644
--- a/ph5/entry_points.py
+++ b/ph5/entry_points.py
@@ -67,10 +67,10 @@ def __init__(self):
                            'ph5.utilities.cross_check_event_array_data:main',
                            'Cross check Event, Array, and Data.',
                            type=EntryPointTypes.ALL),
-                EntryPoint('dumpfair',
-                           'ph5.utilities.dumpfair:main',
-                           'Determine how many samples are '
-                           'in Fairfield Node SEG-D files.',
+                EntryPoint('dumpsegd',
+                           'ph5.utilities.dumpsegd:main',
+                           'Dump header of a SEG-D file '
+                           '(Fairfield Node or SmartSolo)',
                            type=EntryPointTypes.ALL),
                 EntryPoint('dumpsac',
                            'ph5.utilities.dumpsac:main',
diff --git a/ph5/utilities/dumpfair.py b/ph5/utilities/dumpfair.py
deleted file mode 100644
index 2db45ceb..00000000
--- a/ph5/utilities/dumpfair.py
+++ /dev/null
@@ -1,138 +0,0 @@
-#!/usr/bin/env pnpython3
-#
-# Dump Fairfield SEG-D header values
-#
-# Steve Azevedo, October 2014
-#
-import sys
-import os
-from ph5.core import segdreader
-from signal import signal, SIGPIPE, SIG_DFL
-signal(SIGPIPE, SIG_DFL)
-
-PROG_VERSION = "2019.39"
-
-
-def print_container(container):
-    keys = container.keys()
-    for k in keys:
-        print k, container[k]
-
-    print '-' * 80
-
-
-def general_headers(sd):
-    sd.process_general_headers()
-    print '*' * 80
-    print sd.infile
-    print '*' * 80
-    print "*** General Header Block 1 ***"
-    print_container(sd.reel_headers.general_header_block_1)
-    print "*** General Header Block 2 ***"
-    print_container(sd.reel_headers.general_header_block_2)
-
-
-def channel_set_descriptors(sd):
-    print "*** Channel Set Descriptor(s): ***"
-    sd.process_channel_set_descriptors()
-    i = 1
-    for c in sd.reel_headers.channel_set_descriptor:
-        print i
-        i += 1
-        print_container(c)
-
-
-def extended_headers(sd):
-    print "*** Extended Headers ***"
-    sd.process_extended_headers()
-    n = sd.extended_header_blocks
-    if n > 0:
-        print_container(sd.reel_headers.extended_header_1)
-        n -= 1
-    else:
-        return
-    if n > 0:
-        print 2
-        print_container(sd.reel_headers.extended_header_2)
-        n -= 1
-    else:
-        return
-    if n > 0:
-        print 3
-        print_container(sd.reel_headers.extended_header_3)
-
-    i = 1
-    for c in sd.reel_headers.extended_header_4:
-        print i
-        i += 1
-        print_container(c)
-
-
-def external_header(sd):
-    print "*** External Header ***"
-    sd.process_external_headers()
-    print_container(sd.reel_headers.external_header)
-    i = 1
-    for c in sd.reel_headers.external_header_shot:
-        print i
-        i += 1
-        print_container(c)
-
-
-def trace_headers(sd):
-    n = 1
-    print "*** Trace Header ***", n
-
-    sd.process_trace_headers()
-    print_container(sd.trace_headers.trace_header)
-    i = 1
-    for c in sd.trace_headers.trace_header_N:
-        print i
-        i += 1
-        print_container(c)
-
-    trace = sd.read_trace(sd.samples)
-    if 'fairprint' in os.environ:
-        for s in trace:
-            print s
-    while True:
-        if sd.isEOF():
-            break
-        print "*** Trace Header ***", n
-        sd.process_trace_headers()
-        print_container(sd.trace_headers.trace_header)
-        i = 1
-        for c in sd.trace_headers.trace_header_N:
-            print i
-            i += 1
-            print_container(c)
-
-        n += 1
-        trace = sd.read_trace(sd.samples)
-        if 'fairprint' in os.environ:
-            for s in trace:
-                print s
-
-    print "There were {0} traces.".format(n)
-
-
-def main():
-    global RH, TH
-    TH = []
-
-    RH = segdreader.ReelHeaders()
-    try:
-        sd = segdreader.Reader(infile=sys.argv[1])
-        general_headers(sd)
-        channel_set_descriptors(sd)
-        extended_headers(sd)
-        external_header(sd)
-        trace_headers(sd)
-        print "{0} bytes read.".format(sd.bytes_read)
-    except BaseException:
-        print "Usage: dumpfair fairfield_seg-d_file"
-        sys.exit()
-
-
-if __name__ == '__main__':
-    main()
diff --git a/ph5/utilities/dumpsegd.py b/ph5/utilities/dumpsegd.py
new file mode 100644
index 00000000..fb93ef53
--- /dev/null
+++ b/ph5/utilities/dumpsegd.py
@@ -0,0 +1,187 @@
+#!/usr/bin/env pnpython3
+#
+# Dump Fairfield SEG-D header values
+#
+# Steve Azevedo, October 2014
+#
+import sys
+import os
+from ph5.core import segdreader, segdreader_smartsolo
+from signal import signal, SIGPIPE, SIG_DFL
+import construct
+import bcd_py
+signal(SIGPIPE, SIG_DFL)
+
+PROG_VERSION = "2021.130"
+
+
+def print_container(container):
+    keys = container.keys()
+    for k in keys:
+        if k in ['record_length',
+                 'MP_factor_descaler_multiplier']:
+            print("%s %s (HEX:%s)" %
+                  (k, container[k], "{0:x}".format(container[k])))
+        else:
+            print k, container[k]
+
+    print '-' * 80
+
+
+def general_headers(sd):
+    sd.process_general_headers()
+    print '*' * 80
+    print sd.infile
+    print '*' * 80
+    i = 1
+    for ghb in sd.reel_headers.general_header_blocks:
+        print("*** General Header Block %s ***" % i)
+        print_container(ghb)
+        i += 1
+
+
+def channel_set_descriptors(sd):
+    print "*** Channel Set Descriptor(s): ***"
+    sd.process_channel_set_descriptors()
+    i = 1
+    for c in sd.reel_headers.channel_set_descriptor:
+        print i
+        i += 1
+        print_container(c)
+
+
+def extended_headers(sd):
+    print "*** Extended Headers ***"
+    sd.process_extended_headers()
+    i = 1
+    for c in sd.reel_headers.extended_headers:
+        if len(sd.reel_headers.extended_headers) > 1:
+            print i
+        i += 1
+        print_container(c)
+
+
+def external_header(sd):
+    print "*** External Header ***"
+    sd.process_external_headers()
+    print_container(sd.reel_headers.external_header)
+    i = 1
+    for c in sd.reel_headers.external_header_shot:
+        print i
+        i += 1
+        print_container(c)
+
+
+def trace_headers(sd):
+    n = 1
+    print "*** Trace Header ***", n
+
+    sd.process_trace_headers()
+    print_container(sd.trace_headers.trace_header)
+    i = 1
+    for c in sd.trace_headers.trace_header_N:
+        print i
+        i += 1
+        print_container(c)
+
+    trace = sd.read_trace(sd.samples)
+    if 'fairprint' in os.environ:
+        for s in trace:
+            print s
+
+    n += 1
+    while True:
+        if sd.isEOF():
+            break
+        print "*** Trace Header ***", n
+        sd.process_trace_headers()
+        print_container(sd.trace_headers.trace_header)
+        i = 1
+        for c in sd.trace_headers.trace_header_N:
+            print i
+            i += 1
+            print_container(c)
+
+        n += 1
+        trace = sd.read_trace(sd.samples)
+        if 'fairprint' in os.environ:
+            for s in trace:
+                print s
+
+    print "There were {0} traces.".format(n)
+
+
+def read_manufacture_code(filename):
+    """ read byte 17 for manufacture code"""
+    f = open(filename, 'rb')
+    f.seek(16)
+    byte = f.read(1)
+    swap = True
+    if sys.byteorder == 'big':
+        swap = False
+    bin = construct.BitStruct("BIN",
+                              construct.BitField(
+                                  "field", 8, swapped=swap))
+    bcd = bin.parse(byte)['field']
+    if sys.byteorder == 'little':
+        bcd = construct.ULInt64("xxx").build(bcd)
+    else:
+        bcd = construct.UBInt64("xxx").build(bcd)
+    code = bcd_py.bcd2int(bcd, 0, 2)
+    f.close()
+    return code
+
+
+def get_segdreader():
+    """
+        get the segdreader from manufacture code infile
+        or from second argument
+    """
+    KNOWN_CODE = {20: (segdreader, 'FairField'),
+                  61: (segdreader_smartsolo, 'SmartSolo')}
+    req_code_list = ["%s for %s format" % (k, KNOWN_CODE[k][1])
+                     for k in KNOWN_CODE.keys()]
+    req_code_str = ("Please give the second argument either "
+                    ' or '.join(req_code_list))
+
+    manu = read_manufacture_code(sys.argv[1])
+    if manu in KNOWN_CODE.keys():
+        reader = KNOWN_CODE[manu][0]
+    else:
+        try:
+            manu = sys.argv[2]
+            if manu in KNOWN_CODE.keys():
+                reader = KNOWN_CODE[manu][0]
+            else:
+                print("The second argument {0} is not one of the known codes:"
+                      " {1}.\n{2}".format(manu, KNOWN_CODE.keys(),
+                                          req_code_str))
+                raise Exception
+        except IndexError:
+            print("The manufacture code {0} is not one of the known codes:"
+                  " {1}.\n{2}".format(manu, KNOWN_CODE.keys(), req_code_str))
+            raise Exception
+    return reader
+
+
+def main():
+    global RH, TH
+    TH = []
+    try:
+        segd_reader = get_segdreader()
+        RH = segd_reader.ReelHeaders()
+        sd = segd_reader.Reader(infile=sys.argv[1])
+        general_headers(sd)
+        channel_set_descriptors(sd)
+        extended_headers(sd)
+        external_header(sd)
+        trace_headers(sd)
+        print "{0} bytes read.".format(sd.bytes_read)
+    except Exception, e:
+        print "Fail to read header due to error: ", e
+        print "Usage: dumpsegd seg-d_file [format]"
+        sys.exit()
+
+
+if __name__ == '__main__':
+    main()
diff --git a/ph5/utilities/segd2ph5.py b/ph5/utilities/segd2ph5.py
index 6c0db225..3817e25f 100644
--- a/ph5/utilities/segd2ph5.py
+++ b/ph5/utilities/segd2ph5.py
@@ -15,11 +15,19 @@
 import json
 import re
 from math import modf
-from ph5.core import experiment, columns, segdreader
-from ph5 import LOGGING_FORMAT
+import warnings
+
 from pyproj import Proj, transform
+import construct
+import bcd_py
+from tables import NaturalNameWarning
+
+from ph5.core import experiment, columns, segdreader, segdreader_smartsolo
+from ph5 import LOGGING_FORMAT
+warnings.filterwarnings('ignore', category=NaturalNameWarning)
 
-PROG_VERSION = "2019.252"
+
+PROG_VERSION = "2021.159"
 LOGGER = logging.getLogger(__name__)
 
 MAX_PH5_BYTES = 1073741824 * 100.  # 100 GB (1024 X 1024 X 1024 X 2)
@@ -56,6 +64,59 @@ def bitweight(db):
 OTHER = 0
 
 
+def read_manufacture_code(filename):
+    """ read byte 17 for manufacture code"""
+    f = open(filename, 'rb')
+    f.seek(16)
+    byte = f.read(1)
+    swap = True
+    if sys.byteorder == 'big':
+        swap = False
+    bin = construct.BitStruct("BIN",
+                              construct.BitField(
+                                  "field", 8, swapped=swap))
+    bcd = bin.parse(byte)['field']
+    if sys.byteorder == 'little':
+        bcd = construct.ULInt64("xxx").build(bcd)
+    else:
+        bcd = construct.UBInt64("xxx").build(bcd)
+    code = bcd_py.bcd2int(bcd, 0, 2)
+    f.close()
+    return code
+
+
+def get_segdreader(filename, manucode):
+    """
+        get the segdreader from manufacture code infile
+        or from --manufacturers_code argument
+    """
+    KNOWN_CODE = {20: (segdreader, 'FairField'),
+                  61: (segdreader_smartsolo, 'SmartSolo')}
+    req_code_list = ["%s for %s format" % (k, KNOWN_CODE[k][1])
+                     for k in KNOWN_CODE.keys()]
+    req_code_str = ("Please give flag --manufacturers_code either "
+                    ' or '.join(req_code_list))
+
+    manu = read_manufacture_code(filename)
+    if manu in KNOWN_CODE.keys():
+        reader = KNOWN_CODE[manu][0]
+    else:
+        try:
+            if manucode in KNOWN_CODE.keys():
+                reader = KNOWN_CODE[manucode][0]
+            else:
+                LOGGER.error("manufacturers_code flag {0} is not one of "
+                             "the known codes: {1}.\n{2}".
+                             format(manucode, KNOWN_CODE.keys(), req_code_str))
+                raise Exception
+        except IndexError:
+            LOGGER.error("The manufacture code recorded in file {0} is not "
+                         "one of the known codes: {1}.\n{2}".
+                         format(manucode, KNOWN_CODE.keys(), req_code_str))
+            raise Exception
+    return reader
+
+
 #
 #   To hold table rows and keys
 #
@@ -147,14 +208,25 @@ def get_args():
         MANUFACTURERS_CODE
 
     TSPF = False
-
     from optparse import OptionParser
-    oparser = OptionParser()
+
+    class MyParser(OptionParser):
+        """
+        Override format_epilog to allow newlines
+        """
+        def format_epilog(self, formatter):
+            return self.epilog
+
+    oparser = MyParser()
 
     oparser.usage = "Version: {0} Usage: segdtoph5 [options]".format(
         PROG_VERSION)
-    oparser.epilog = ("Notice: Data of a Das can't be stored in more than one "
-                      "mini file.")
+    oparser.epilog = (
+        "Notice:\n"
+        "\tData of a Das can't be stored in more than one mini file.\n\n"
+        "\tUpdate astropy package for the lastes leap second table used in "
+        "converting time from GPS to UTC in SmartSolo's:\n"
+        "\t\tconda update astropy\n")
 
     oparser.add_option("-r", "--raw", dest="rawfile",
                        help="Fairfield SEG-D v1.6 file.", metavar="raw_file")
@@ -203,7 +275,7 @@ def get_args():
                        help="Manufacturers code. Defaults to 20 for Fairfield.\
                         Most likely will not work for SEG-D written by other\
                          data loggers,",
-                       type='int', default=FAIRFIELD)
+                       type='int', default=None)
 
     options, args = oparser.parse_args()
 
@@ -439,16 +511,77 @@ def process_traces(rh, th, tr):
            tr -> trace data
     '''
 
-    def get_true_channel():
-        #   Find channel by mapping to streamer_cable_number
-
-        if rh.channel_set_to_streamer_cable_map[th.trace_header.channel_set]\
-                == 0:
-            true_channel = th.trace_header.channel_set
-        else:
-            true_channel = rh.channel_set_to_streamer_cable_map[
-                th.trace_header.channel_set]
-        return true_channel
+    def get_true_channel(SD):
+        if SD.manufacturer == 'FairfieldNodal':
+            '''
+            Orientation Code:
+               chan 1 -> N Changed to '1'
+               chan 2 -> E Changed to '2'
+               chan 3 -> Z
+            or
+               chan 1 -> Z
+            '''
+            #   Find channel by mapping to streamer_cable_number
+            if rh.channel_set_to_streamer_cable_map[
+                th.trace_header.channel_set] \
+                    == 0:
+                true_channel = th.trace_header.channel_set
+            else:
+                true_channel = rh.channel_set_to_streamer_cable_map[
+                    th.trace_header.channel_set]
+            if SD.chan_sets_per_scan >= 3:
+                OM = {1: '1', 2: '2', 3: 'Z'}
+            elif SD.chan_sets_per_scan == 1:
+                OM = {1: 'Z'}
+            else:
+                OM = None
+            if OM is None:
+                orientation_code = true_channel
+            else:
+                orientation_code = OM[true_channel]
+        elif SD.manufacturer == 'SmartSolo':
+            channel_list = ['N', 'E', 'Z']
+            filename_parts = SD.name().split('.')
+            found_channel = False
+            true_channel = 0
+            orientation_code = None
+            for p in filename_parts:
+                if p in channel_list:
+                    orientation_code = p
+                    true_channel = channel_list.index(p) + 1
+                    found_channel = True
+                    break
+            if not found_channel:
+                LOGGER.warning(
+                    "Neither E, N, nor Z can't be found in filename")
+        return true_channel, orientation_code
+
+    def get_raw_file_name(SD):
+        filename = SD.name()
+        if SD.manufacturer == 'SmartSolo':
+            channel_list = ['E', 'N', 'Z']
+            filename_parts = filename.split('.')
+            chanidx = -1
+            for c in channel_list:
+                try:
+                    chanidx = filename_parts.index(c)
+                    break
+                except ValueError:
+                    pass
+            """
+            Shorten filename to fit the field:
+            remove 'segd' at the end
+            remove second and decimal of second
+            add . in front of chan to show somethings have been removed
+            Ex: filename: 453005483.1.2021.03.15.16.00.00.000.E.segd
+            => shorten:   453005483.1.2021.03.15.16.00..E
+            """
+            filename_parts.remove('segd')
+            filename_parts[chanidx] = '.' + filename_parts[chanidx]
+            filename_parts.pop(chanidx - 1)  # remove decimal part
+            filename_parts.pop(chanidx - 2)  # remove second part
+            filename = '.'.join(filename_parts)
+        return os.path.basename(filename)
 
     def process_das():
         global LSB
@@ -482,14 +615,14 @@ def process_das():
             str(Das))
         #   Build maps group (XXX)
         EXREC.ph5_g_maps.newdas('Das_g_', str(Das))
-        if rh.general_header_block_1.chan_sets_per_scan == 1:
+        if rh.general_header_blocks[0].chan_sets_per_scan == 1:
             #   Single channel
             p_das_t['receiver_table_n_i'] = 0  # 0 -> Z
-        elif rh.general_header_block_1.chan_sets_per_scan >= 3:
+        elif rh.general_header_blocks[0].chan_sets_per_scan >= 3:
             # 1 (N node) -> 1 (N PH5), 2 (E Node)-> 2 (E PH5), 3 (Z Node) -> 0
             # (Z PH5)
             M = {1: 1, 2: 2, 3: 0}
-            p_das_t['receiver_table_n_i'] = M[get_true_channel()]
+            p_das_t['receiver_table_n_i'] = M[get_true_channel(SD)[0]]
         else:
             p_das_t['receiver_table_n_i'] = 0  # 0 -> Z
             LOGGER.warning(
@@ -500,7 +633,7 @@ def process_das():
         p_das_t['time_table_n_i'] = 0
         p_das_t['time/type_s'] = 'BOTH'
         try:
-            trace_epoch = th.trace_header_N[2].shot_epoch
+            trace_epoch = th.trace_epoch
         except Exception as e:
             LOGGER.warning("Failed to read shot epoch: {0}.".format(e.message))
             trace_epoch = 0.
@@ -509,13 +642,14 @@ def process_das():
         p_das_t['time/epoch_l'] = int(i)
         p_das_t['time/ascii_s'] = time.ctime(p_das_t['time/epoch_l'])
         p_das_t['time/micro_seconds_i'] = int(f * 1000000.)
-        p_das_t['event_number_i'] = th.trace_header_N[1].shot_point
-        p_das_t['channel_number_i'] = get_true_channel()
+        p_das_t['event_number_i'] = th.event_number
+        p_das_t['channel_number_i'] = get_true_channel(SD)[0]
+        p_das_t['sample_rate_i'] = SD.sample_rate
         p_das_t['sample_rate_i'] = SD.sample_rate
         p_das_t['sample_rate_multiplier_i'] = 1
         p_das_t['sample_count_i'] = len(tr)
         p_das_t['stream_number_i'] = 1
-        p_das_t['raw_file_name_s'] = os.path.basename(SD.name())
+        p_das_t['raw_file_name_s'] = get_raw_file_name(SD)
         p_das_t['array_name_data_a'] = EXREC.ph5_g_receivers.nextarray(
             'Data_a_')
         p_response_t = {}
@@ -530,13 +664,13 @@ def process_das():
             response_file_a
         '''
         try:
-            LSB = LSB_MAP[th.trace_header_N[3].preamp_gain_db]
-            n_i = RESP.match(LSB, th.trace_header_N[3].preamp_gain_db)
+            LSB = LSB_MAP[th.preamp_gain_db]
+            n_i = RESP.match(LSB, th.preamp_gain_db)
         except Exception as e:
             n_i = 0
         p_response_t['gain/units_s'] = 'dB'
         try:
-            p_response_t['gain/value_i'] = th.trace_header_N[3].preamp_gain_db
+            p_response_t['gain/value_i'] = th.preamp_gain_db
         except Exception as e:
             LOGGER.warning(
                 "Failed to read trace pre amp gain: {0}.".format(e.message))
@@ -556,11 +690,17 @@ def process_das():
               " Channel: " + str(p_das_t['channel_number_i'])
         #   Write trace data here
         try:
-            #   Convert to counts
-            tr_counts = tr / LSB
-            EXREC.ph5_g_receivers.newarray(
-                p_das_t['array_name_data_a'], tr_counts, dtype='int32',
-                description=des)
+            if SD.manufacturer == 'FairfieldNodal':
+                #   Convert to counts
+                tr_counts = tr / LSB
+                EXREC.ph5_g_receivers.newarray(
+                    p_das_t['array_name_data_a'], tr_counts, dtype='int32',
+                    description=des)
+            elif SD.manufacturer == 'SmartSolo':
+                # SmartSolo is recorded by mV
+                EXREC.ph5_g_receivers.newarray(
+                    p_das_t['array_name_data_a'], tr, dtype='float32',
+                    description=des)
         except Exception as e:
             #   Failed, leave as float
             LOGGER.warning(
@@ -656,36 +796,21 @@ def seen_sta():
            Changed from H to P at request from Akram
         '''
         instrument_code = 'P'
-        '''
-        Orientation Code:
-           chan 1 -> N Changed to '1'
-           chan 2 -> E Changed to '2'
-           chan 3 -> Z
-        or
-           chan 1 -> Z
-        '''
-        if SD.chan_sets_per_scan >= 3:
-            OM = {1: '1', 2: '2', 3: 'Z'}
-        elif SD.chan_sets_per_scan == 1:
-            OM = {1: 'Z'}
-        else:
-            OM = None
-        if OM is None:
-            orientation_code = get_true_channel()
-        else:
-            orientation_code = OM[get_true_channel()]
+        chan_set, orientation_code = get_true_channel(SD)
+
         p_array_t['seed_band_code_s'] = band_code
         p_array_t['seed_instrument_code_s'] = instrument_code
         p_array_t['seed_orientation_code_s'] = orientation_code
+
         p_array_t['seed_station_name_s'] = Das.split('X')[1]
         p_array_t['sample_rate_i'] = SD.sample_rate
         p_array_t['sample_rate_multiplier_i'] = 1
         p_array_t['deploy_time/type_s'] = 'BOTH'
         try:
-            f, i = modf(rh.extended_header_1.epoch_deploy / 1000000.)
+            f, i = modf(SD.deploy_epoch)
         except Exception as e:
             LOGGER.warning(
-                "Failed to read extended header 1 deploy epoch: {0}.".format(
+                "Failed to read deploy epoch: {0}.".format(
                     e.message))
             f = i = 0.
         p_array_t['deploy_time/epoch_l'] = int(i)
@@ -693,23 +818,28 @@ def seen_sta():
         p_array_t['deploy_time/micro_seconds_i'] = int(f * 1000000.)
         p_array_t['pickup_time/type_s'] = 'BOTH'
         try:
-            f, i = modf(rh.extended_header_1.epoch_pickup / 1000000.)
+            f, i = modf(SD.pickup_epoch)
         except Exception as e:
             LOGGER.warning(
-                "Failed to read extended header 1 pickup epoch: {0}.".format(
+                "Failed to read pickup epoch: {0}.".format(
                     e.message))
             f = i = 0.
         p_array_t['pickup_time/epoch_l'] = int(i)
         p_array_t['pickup_time/ascii_s'] = time.ctime(int(i))
         p_array_t['pickup_time/micro_seconds_i'] = int(f * 1000000.)
         p_array_t['id_s'] = Das.split('X')[1]
-        p_array_t['das/manufacturer_s'] = 'FairfieldNodal'
-        DM = {1: 'ZLAND 1C', 3: "ZLAND 3C"}
+
+        # use manu_code to decide SMARTSOLO dasmodel
+        p_array_t['das/manufacturer_s'] = SD.manufacturer
+
         try:
-            if SD.chan_sets_per_scan >= 3:
-                p_array_t['das/model_s'] = DM[3]
-            else:
-                p_array_t['das/model_s'] = DM[1]
+            if SD.manufacturer == "SmartSolo":
+                p_array_t['das/model_s'] = 'SmartSolo IGU16'
+            elif SD.manufacturer == "FairfieldNodal":
+                if SD.chan_sets_per_scan >= 3:
+                    p_array_t['das/model_s'] = "ZLAND 3C"
+                else:
+                    p_array_t['das/model_s'] = 'ZLAND 1C'
         except Exception as e:
             LOGGER.warning(
                 "Failed to read channel sets per scan: {0}.".format(e.message))
@@ -741,30 +871,30 @@ def seen_sta():
         p_array_t['location/Y/value_d'] = LAT
         p_array_t['location/Z/units_s'] = 'unknown'
         try:
-            p_array_t['location/Z/value_d'] =\
-                th.trace_header_N[4].receiver_point_depth_final / 10.
+            p_array_t['location/Z/value_d'] = th.ele / 10.
         except Exception as e:
             LOGGER.warning(
-                "Failed to read receiver point depth: {0}.".format(e.message))
+                "Failed to read elevation: {0}.".format(e.message))
             p_array_t['location/Z/value_d'] = 0.
 
-        p_array_t['channel_number_i'] = get_true_channel()
+        p_array_t['channel_number_i'] = chan_set
         try:
             p_array_t['description_s'] = "DAS: {0}, Node ID: {1}".format(
-                Das, rh.extended_header_1.id_number)
+                Das, SD.id_number)
         except Exception as e:
             LOGGER.warning(
-                "Failed to read extended header 1 ID number: {0}.".format(
+                "Failed to read ID number: {0}.".format(
                     e.message))
 
         try:
-            line = th.trace_header_N[4].line_number
+            line = th.line_number
+            if line == -1:
+                line = 1
         except Exception as e:
             LOGGER.warning("Failed to read line number: {0}.".format(
                 e.message))
             line = 0
 
-        chan_set = get_true_channel()
         dtime = p_array_t['deploy_time/epoch_l']
         if line not in ARRAY_T:
             ARRAY_T[line] = {}
@@ -777,6 +907,11 @@ def seen_sta():
 
         if not seen_sta():
             ARRAY_T[line][Das][dtime][chan_set].append(p_array_t)
+        elif SD.manufacturer == "SmartSolo":
+            # need to update the row after each trace is readed
+            # because the pickup time will be
+            # updated depend on trace_epoch
+            ARRAY_T[line][Das][dtime][chan_set][-1] = p_array_t
 
     def process_reel_headers():
         global RH
@@ -789,28 +924,17 @@ def process(hdr, header_type):
                 ll, sort_keys=True, indent=4).split('\n'))
 
         log_array, log_name = getLOG()
-        #   General header 1
-        process(rh.general_header_block_1, 'General 1')
-        #   General header 1
-        process(rh.general_header_block_2, 'General 2')
-        #   General header N
-        for i in range(len(rh.general_header_block_N)):
-            ht = "General {0}".format(i + 3)
-            process(rh.general_header_block_N[i], ht)
+        for i in range(len(rh.general_header_blocks)):
+            ht = "General {0}".format(i+1)
+            process(rh.general_header_blocks[i], ht)
         #   Channel set descriptors
         for i in range(len(rh.channel_set_descriptor)):
             ht = "Channel Set {0}".format(i + 1)
             process(rh.channel_set_descriptor, ht)
-        #   Extended header 1
-        process(rh.extended_header_1, "Extended 1")
-        #   Extended header 2
-        process(rh.extended_header_2, "Extended 2")
-        #   Extended header 3
-        process(rh.extended_header_3, "Extended 3")
-        #   Extended header 4 - n
-        for i in range(len(rh.extended_header_4)):
-            ht = "Extended 4 ({0})".format(i + 1)
-            process(rh.extended_header_4[i], ht)
+
+        for i in range(len(rh.extended_headers)):
+            ht = "Extended {0}".format(i)
+            process(rh.extended_headers[i], ht)
         #   External header
         process(rh.external_header, "External Header")
         #   External header shot
@@ -863,7 +987,7 @@ def write_arrays(Array_t):
                         for array_t in Array_t[line][das][dtime][chan_set]:
                             columns.populate(a, array_t)
                     except Exception as e:
-                        print e.message
+                        print(e.message)
 
 
 def writeINDEX():
@@ -975,6 +1099,29 @@ def utmcsptolatlon(northing, easting):
     return lat, lon
 
 
+def get_latlon(manu, th):
+    try:
+        if manu == 'FairfieldNodal':
+            if UTM:
+                #   UTM
+                LAT, LON = utmcsptolatlon(th.lat/10., th.lon/10.)
+            elif TSPF:
+                #   Texas State Plane coordinates
+                LAT, LON = txncsptolatlon(th.lat/10., th.lon/10.)
+            else:
+                LAT = th.lat / 10.
+                LON = th.lon / 10.
+        elif manu == 'SmartSolo':
+            LAT = th.lat
+            LON = th.lon
+    except Exception as e:
+        LOGGER.warning(
+            "Failed to convert location: {0}.\n".format(
+                e.message))
+
+    return LAT, LON
+
+
 def main():
     import time
     then = time.time()
@@ -987,25 +1134,43 @@ def prof():
         MINIPH5 = None
         ARRAY_T = {}
 
-        def get_das(sd):
-            #   Return line_station or das#[-9:]
-            try:
-                das = "{0}X{1}".format(
-                    sd.reel_headers.extended_header_3.line_number,
-                    sd.reel_headers.extended_header_3.receiver_point)
-            except Exception:
+        def get_das(sd, warn=False):
+            if sd.manufacturer == 'FairfieldNodal':
+                #   Return line_station or das#[-9:]
                 try:
                     das = "{0}X{1}".format(
-                        sd.reel_headers.external_header.receiver_line,
-                        sd.reel_headers.external_header.receiver_point)
+                        sd.reel_headers.extended_headers[2].line_number,
+                        sd.reel_headers.extended_headers[2].receiver_point)
                 except Exception:
-                    das = "sn" + \
-                          str(sd.reel_headers.general_header_block_1.
-                              manufactures_sn)
-                    if das == 0:
-                        das = "id" + \
-                              str(sd.reel_headers
-                                  .extended_header_1.id_number)[-9:]
+                    try:
+                        das = "{0}X{1}".format(
+                            sd.reel_headers.external_header.receiver_line,
+                            sd.reel_headers.external_header.receiver_point)
+                    except Exception:
+                        das = "sn" + \
+                              str(sd.reel_headers.general_header_blocks[0].
+                                  manufactures_sn)
+                        if das == 0:
+                            das = "id" + \
+                                  str(sd.reel_headers
+                                      .extended_headers[0].id_number)[-9:]
+            elif sd.manufacturer == 'SmartSolo':
+                line_number = sd.trace_headers.line_number
+                receiver_point = sd.trace_headers.receiver_point
+                if line_number == -1:
+                    if warn:
+                        LOGGER.warning(
+                            "Line number is using invalid default value -1. "
+                            "Using 1 instead.")
+                    line_number = 1
+                if receiver_point == -1:
+                    if warn:
+                        LOGGER.warning(
+                            "Receiver point (stationID) is using invalid "
+                            "default value -1. Using 1 instead.")
+                    receiver_point = 1
+                das = "{0}X{1}".format(line_number, receiver_point)
+                # das = sd.id_number
 
             return das
 
@@ -1015,18 +1180,18 @@ def get_node(sd):
             id = None  # Node ID
             nc = None  # Number of channel sets
             try:
-                nc = sd.reel_headers.general_header_block_1[
+                nc = sd.reel_headers.general_header_blocks[0][
                     'chan_sets_per_scan']
-                pn = sd.reel_headers.extended_header_1['part_number']
-                id = sd.reel_headers.extended_header_1['id_number']
+                id = sd.id_number
+                if sd.manufacturer == 'FairfieldNodal':
+                    pn = sd.reel_headers.extended_headers[0]['part_number']
             except Exception:
                 pass
-
             return pn, id, nc
 
         try:
             get_args()
-        except Exception, err_msg:
+        except Exception as err_msg:
             LOGGER.error(err_msg)
             return 1
 
@@ -1050,22 +1215,22 @@ def get_node(sd):
                 LOGGER.error("Failed to read {0}, {1}.\
                  Skipping...\n".format(f, str(e.message)))
                 continue
-
-            SD = segdreader.Reader(infile=f)
+            try:
+                segd_reader = get_segdreader(f, MANUFACTURERS_CODE)
+            except Exception:
+                continue
+            SD = segd_reader.Reader(infile=f)
             LAT = None
             LON = None
             RH = False
-            if not SD.isSEGD(expected_manufactures_code=MANUFACTURERS_CODE):
-                LOGGER.error(
-                    "{0} is not a Fairfield SEG-D file. Skipping.".format(
-                        SD.name()))
-                continue
 
             try:
                 SD.process_general_headers()
                 SD.process_channel_set_descriptors()
                 SD.process_extended_headers()
                 SD.process_external_headers()
+                if SD.manufacturer == 'SmartSolo':
+                    SD.process_trace_headers()
             except segdreader.InputsError as e:
                 LOGGER.error(
                     "Possible bad SEG-D file -- {0}".format(
@@ -1073,7 +1238,11 @@ def get_node(sd):
                 continue
 
             nleft = APPEND
-            Das = get_das(SD)
+            Das = get_das(SD, warn=True)
+            if not Das.isalnum():
+                LOGGER.error(
+                    "DAS %s is not alphanumeric. Can't process." % Das)
+                return 1
             part_number, node_id, number_of_channels = get_node(SD)
             EXREC = get_current_data_only(SIZE, Das)
             LOGGER.info(":<Processing>: {0}\n".format(SD.name()))
@@ -1081,12 +1250,17 @@ def get_node(sd):
                 "Processing: {0}... Size: {1}\n".format(SD.name(), SIZE))
             if EXREC.filename != MINIPH5:
                 LOGGER.info("Opened: {0}...\n".format(EXREC.filename))
+                if node_id is None:
+                    node_id_str = ''
+                else:
+                    node_id_str = ', Node ID: %s' % node_id
                 LOGGER.info(
-                    "DAS: {0}, Node ID: {1}, PN: {2}, Channels: {3}".format(
-                        Das, node_id, part_number, number_of_channels))
+                    "DAS: {0}{1}, PN: {2}, Channels: {3}".format(
+                        Das, node_id_str, part_number, number_of_channels))
                 MINIPH5 = EXREC.filename
 
             n = 0
+            trace_index = 0
             trace_headers_list = []
             while True:
                 if SD.isEOF():
@@ -1114,7 +1288,8 @@ def get_node(sd):
                     break
 
                 try:
-                    trace, cs = SD.process_trace()
+                    trace, cs = SD.process_trace(trace_index)
+                    trace_index += 1
                 except segdreader.InputsError as e:
                     LOGGER.error("{0}\n".format(F))
                     LOGGER.error(
@@ -1123,30 +1298,7 @@ def get_node(sd):
                     break
 
                 if not LAT and not LON:
-                    try:
-                        if UTM:
-                            #   UTM
-                            LAT, LON = utmcsptolatlon(
-                                SD.trace_headers.trace_header_N[
-                                    4].receiver_point_Y_final / 10.,
-                                SD.trace_headers.trace_header_N[
-                                    4].receiver_point_X_final / 10.)
-                        elif TSPF:
-                            #   Texas State Plane coordinates
-                            LAT, LON = txncsptolatlon(
-                                SD.trace_headers.trace_header_N[
-                                    4].receiver_point_Y_final / 10.,
-                                SD.trace_headers.trace_header_N[
-                                    4].receiver_point_X_final / 10.)
-                        else:
-                            LAT = SD.trace_headers.trace_header_N[
-                                      4].receiver_point_Y_final / 10.
-                            LON = SD.trace_headers.trace_header_N[
-                                      4].receiver_point_X_final / 10.
-                    except Exception as e:
-                        LOGGER.warning(
-                            "Failed to convert location: {0}.\n".format(
-                                e.message))
+                    LAT, LON = get_latlon(SD.manufacturer, SD.trace_headers)
 
                 trace_headers_list.append(SD.trace_headers)
                 if n == 0:
@@ -1201,7 +1353,6 @@ def get_node(sd):
                     log_array.append(line)
 
             LOGGER.info(":<Finished>: {0}\n".format(F))
-
         write_arrays(ARRAY_T)
         seconds = time.time() - then
 


Test patch:
diff --git a/ph5/clients/tests/test_ph5tostationxml.py b/ph5/clients/tests/test_ph5tostationxml.py
index 900606c8..4496a2da 100644
--- a/ph5/clients/tests/test_ph5tostationxml.py
+++ b/ph5/clients/tests/test_ph5tostationxml.py
@@ -436,7 +436,7 @@ def setUp(self):
             kef2ph5.main()
         testargs = ['segdtoph5', '-n', 'master.ph5', '-U', '13N', '-r',
                     os.path.join(self.home,
-                                 'ph5/test_data/segd/3ch.fcnt')]
+                                 'ph5/test_data/segd/fairfield/3ch.fcnt')]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
 
diff --git a/ph5/test_data/segd/1111.0.0.fcnt b/ph5/test_data/segd/fairfield/1111.0.0.fcnt
similarity index 100%
rename from ph5/test_data/segd/1111.0.0.fcnt
rename to ph5/test_data/segd/fairfield/1111.0.0.fcnt
diff --git a/ph5/test_data/segd/1111.1.0.fcnt b/ph5/test_data/segd/fairfield/1111.1.0.fcnt
similarity index 100%
rename from ph5/test_data/segd/1111.1.0.fcnt
rename to ph5/test_data/segd/fairfield/1111.1.0.fcnt
diff --git a/ph5/test_data/segd/1111.2.0.fcnt b/ph5/test_data/segd/fairfield/1111.2.0.fcnt
similarity index 100%
rename from ph5/test_data/segd/1111.2.0.fcnt
rename to ph5/test_data/segd/fairfield/1111.2.0.fcnt
diff --git a/ph5/test_data/segd/3ch.fcnt b/ph5/test_data/segd/fairfield/3ch.fcnt
similarity index 100%
rename from ph5/test_data/segd/3ch.fcnt
rename to ph5/test_data/segd/fairfield/3ch.fcnt
diff --git a/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd b/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd
new file mode 100644
index 00000000..e8c62870
Binary files /dev/null and b/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd differ
diff --git a/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd.header b/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd.header
new file mode 100644
index 00000000..8877bb75
--- /dev/null
+++ b/ph5/test_data/segd/smartsolo/453005483.1.2021.03.15.16.00.00.000.E.segd.header
@@ -0,0 +1,17609 @@
+********************************************************************************
+453005483.1.2021.03.15.16.00.00.000.E.segd
+********************************************************************************
+*** General Header Block 1 ***
+file_number 0
+data_sample_format_code 8058
+general_constant_1 0
+general_constant_2 0
+general_constant_3 0
+general_constant_4 0
+general_constant_5 0
+general_constant_6 5
+first_shot_point_year 21
+number_additional_general_header_blocks 2
+first_shot_point_doy 74
+hour_of_day_utc 16
+minute_of_hour_utc 0
+second_of_minute_utc 0
+manufactures_code 61
+manufactures_sn 0
+bytes_per_scan 0
+base_scan_interval 32
+polarity 0
+gather_type 2
+not_used 0
+record_type 8
+record_length 4095 (HEX:fff)
+scan_types_per_record 1
+chan_sets_per_scan 16
+number_sample_skew_32_extensions 0
+extended_header_length 32
+external_header_length 32
+first_shot_point_doy 74
+--------------------------------------------------------------------------------
+*** General Header Block 2 ***
+extended_file_number 0
+extended_channel_set_per_scan_type 0
+extended_header_blocks 0
+number_32-byte_fields_in_external_header 0
+not_used 0
+SEGD_revision_number1 2
+SEGD_revision_number2 1
+number_32-byte_general_trailer_blocks 0
+extended_record_length 6000
+undefined1 0
+general_header_block_number 2
+undefined2 0
+--------------------------------------------------------------------------------
+*** General Header Block 3 ***
+expanded_file_number 0
+source_line_number_integer 0
+source_line_number_fraction 0.0
+source_point_number_integer 0
+source_point_number_fraction 0.0
+source_point_index 1
+phase_control 0
+vibrator_type 0
+phase_angle 0
+general_header_block_number 3
+source_set_number_default 1
+not_used 0
+--------------------------------------------------------------------------------
+*** Channel Set Descriptor(s): ***
+1
+scan_type_number 1
+chan_set_number 1
+chan_set_start_time_ms 0
+chan_set_end_time_ms 3000
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 136 (HEX:88)
+number_of_chans_in_chan_set 300
+chan_type_code 1
+not_used 0
+number_sub-scans 0
+gain_control_type 3
+alias_filter_freq_Hz 206
+alias_filter_slope_dB_per_octave 288
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 12
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 7
+vertical_stack_size 1
+streamer_cable_number 0
+array_forming 1
+--------------------------------------------------------------------------------
+2
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+3
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+4
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+5
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+6
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+7
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+8
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+9
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+10
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+11
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+12
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+13
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+14
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+15
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+16
+scan_type_number 0
+chan_set_number 0
+chan_set_start_time_ms 0
+chan_set_end_time_ms 0
+optional_MP_factor_extension_byte 0
+MP_factor_descaler_multiplier 0 (HEX:0)
+number_of_chans_in_chan_set 0
+chan_type_code 0
+not_used 0
+number_sub-scans 0
+gain_control_type 0
+alias_filter_freq_Hz 0
+alias_filter_slope_dB_per_octave 0
+low_cut_filter_freq_Hz 0
+low_cut_filter_slope_db_per_octave 0
+first_notch_filter_freq 0
+second_notch_filter_freq 0
+third_notch_filter_freq 0
+extended_chan_set_number 0
+extended_header_flag 0
+number_trace_header_extensions 0
+vertical_stack_size 0
+streamer_cable_number 0
+array_forming 0
+--------------------------------------------------------------------------------
+*** Extended Headers ***
+acquisition_length 6000
+sample_rate_microsec 2000
+number_of_traces 300
+number_of_samples_in_traces 3001
+number_of_seis_traces 300
+number_of_auxes 0
+number_of_dead_seis_traces 0
+number_of_live_seis_traces 300
+source_type 1
+gather_type 2
+reserved 0
+--------------------------------------------------------------------------------
+*** External Header ***
+field_file_number 0
+file_number 0
+souce_easting_cm 0
+source_northing_cm 0
+source_elevation_cm 0
+source_or_receiver_GPS_lat_integer 0
+source_or_receiver_GPS_lat_fraction 0.0
+source_or_receiver_GPS_lon_integer 0
+source_or_receiver_GPS_lon_fraction 0.0
+TB_GPS_time_ms 1299859218000000
+not_used 0
+source_GPS_height_cm 0
+reserved 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 1
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 1
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859218000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 1
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 2
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 2
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859224000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 2
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 3
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 3
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859230000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 3
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 4
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 4
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859236000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 4
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 5
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 5
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859242000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 5
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 6
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 6
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859248000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 6
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 7
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 7
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859254000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 7
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 8
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 8
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859260000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 8
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 9
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 9
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299859266000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 9
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 10
+4_digit_file_number 0
+scan_type 1
+channel_set 1
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+--------------------------------------------------------------------------------
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+*** Trace Header *** 11
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+--------------------------------------------------------------------------------
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+*** Trace Header *** 25
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+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299860976000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 294
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 295
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 295
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299860982000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 295
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 296
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 296
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299860988000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 296
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 297
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 297
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299860994000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 297
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 298
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 298
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299861000000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 298
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 299
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 299
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299861006000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 299
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+*** Trace Header *** 300
+4_digit_file_number 0
+scan_type 1
+channel_set 1
+trace_number 300
+first_timing_word 0
+trace_extension_blocks 7
+sample_skew_value 0
+trace_edit_code 0
+time_break_window 0
+extended_channel_set 0
+extended_file_number 0
+--------------------------------------------------------------------------------
+1
+receiver_line_number -1
+receiver_point_number -1
+receiver_point_index 1
+samples_per_trace 3001
+extended_receiver_line_number_integer -1
+extended_receiver_line_number_fraction 0.0
+extended_receiver_point_number_integer -1
+extended_receiver_point_number_fraction 0.0
+not_used 0
+--------------------------------------------------------------------------------
+2
+TB_GPS_time_microsec 1299861012000000
+TB offset_microsec 0
+external_file_id 0
+not_used 0
+extended_trace_number 300
+--------------------------------------------------------------------------------
+3
+receiver_easting_4_bytes_integer_cm 0
+receiver_northing_4_bytes_integer_cm 0
+receiver_elevation_4_bytes_integer_cm 0
+not_used 0
+--------------------------------------------------------------------------------
+4
+IGU_GPS_lat_integer 301027
+IGU_GPS_lat_fraction 0.00823974609375
+IGU_GPS_lon_integer 904625
+IGU_GPS_lon_fraction 0.718551635742
+IGU_GPS_height 0
+not_used 0
+--------------------------------------------------------------------------------
+5
+not_used 0
+--------------------------------------------------------------------------------
+6
+unit_type 0
+unit_serial_number 453005483
+channel_number 1
+not_used 0
+--------------------------------------------------------------------------------
+7
+not_used 0
+--------------------------------------------------------------------------------
+There were 301 traces.
+3677056 bytes read.
diff --git a/ph5/utilities/tests/test_dumpsegd.py b/ph5/utilities/tests/test_dumpsegd.py
new file mode 100644
index 00000000..c0085fbd
--- /dev/null
+++ b/ph5/utilities/tests/test_dumpsegd.py
@@ -0,0 +1,35 @@
+'''
+Tests for dumpsegd
+'''
+import os
+import sys
+import unittest
+
+from mock import patch
+from testfixtures import OutputCapture
+
+from ph5.utilities import dumpsegd
+from ph5.core.tests.test_base import LogTestCase, TempDirTestCase
+
+
+class TestDumpSEGD(TempDirTestCase, LogTestCase):
+    def test_main(self):
+        segdfile = os.path.join(
+            self.home,
+            'ph5/test_data/segd/smartsolo/'
+            '453005483.1.2021.03.15.16.00.00.000.E.segd')
+        segdheaderfile = segdfile + '.header'
+        with open(segdheaderfile, 'r') as headerFile:
+            header = headerFile.read().split()
+
+        testargs = ['dumpsegd', segdfile]
+        with patch.object(sys, 'argv', testargs):
+            with OutputCapture() as out:
+                dumpsegd.main()
+                output = out.captured.split()
+        # skip the filename lines
+        self.assertEqual(output[2:], header[2:])
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/ph5/utilities/tests/test_pforma_io.py b/ph5/utilities/tests/test_pforma_io.py
index ba5e9fda..d4a3180b 100644
--- a/ph5/utilities/tests/test_pforma_io.py
+++ b/ph5/utilities/tests/test_pforma_io.py
@@ -27,7 +27,8 @@ def test_unite(self):
         # add data to A/master.ph5
         os.chdir(os.path.join(self.tmpdir, "A"))
         testargs = ['segdtoph5', '-n', 'master.ph5', '-r',
-                    os.path.join(self.home, "ph5/test_data/segd/3ch.fcnt")]
+                    os.path.join(self.home,
+                                 "ph5/test_data/segd/fairfield/3ch.fcnt")]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
 
diff --git a/ph5/utilities/tests/test_ph5validate.py b/ph5/utilities/tests/test_ph5validate.py
index a6b00617..9b7c010f 100755
--- a/ph5/utilities/tests/test_ph5validate.py
+++ b/ph5/utilities/tests/test_ph5validate.py
@@ -566,8 +566,8 @@ def tearDown(self):
 
     def test_check_no_event(self):
         testargs = ['segd2ph5', '-n', 'master.ph5', '-r',
-                    os.path.join(self.home,
-                                 'ph5/test_data/segd2ph5/1111.1.0.fcnt')]
+                    os.path.join(self.home, 'ph5/test_data/segd/fairfield/'
+                                            '1111.1.0.fcnt')]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
         self.ph5_object = ph5api.PH5(
@@ -589,7 +589,7 @@ def tearDown(self):
     def test_check_response_t(self):
         testargs = ['segdtoph5', '-n', 'master.ph5', '-U', '13N', '-r',
                     os.path.join(self.home,
-                                 'ph5/test_data/segd/3ch.fcnt')]
+                                 'ph5/test_data/segd/fairfield/3ch.fcnt')]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
         self.ph5API_object = ph5api.PH5(path=self.tmpdir,
diff --git a/ph5/utilities/tests/test_resp_load.py b/ph5/utilities/tests/test_resp_load.py
index 344a2af2..a9e79b31 100644
--- a/ph5/utilities/tests/test_resp_load.py
+++ b/ph5/utilities/tests/test_resp_load.py
@@ -27,7 +27,8 @@ def tearDown(self):
 
     def test_main(self):
         testargs = ['segdtoph5', '-n', 'master.ph5', '-r',
-                    os.path.join(self.home, "ph5/test_data/segd/3ch.fcnt")]
+                    os.path.join(self.home,
+                                 "ph5/test_data/segd/fairfield/3ch.fcnt")]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
 
@@ -110,7 +111,8 @@ def setUp(self):
          response_t: n_i=0 bit_weight=1.88e-05
         """
         testargs = ['segdtoph5', '-n', 'master.ph5', '-r',
-                    os.path.join(self.home, "ph5/test_data/segd/3ch.fcnt")]
+                    os.path.join(self.home,
+                                 "ph5/test_data/segd/fairfield/3ch.fcnt")]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
 
diff --git a/ph5/utilities/tests/test_segd2ph5.py b/ph5/utilities/tests/test_segd2ph5.py
index 7ee6bb64..ed96e41b 100644
--- a/ph5/utilities/tests/test_segd2ph5.py
+++ b/ph5/utilities/tests/test_segd2ph5.py
@@ -4,11 +4,13 @@
 import os
 import sys
 import unittest
+import logging
 
 from mock import patch
+from testfixtures import LogCapture
 
 from ph5.utilities import segd2ph5, tabletokef
-from ph5.core import segdreader
+from ph5.core import segdreader, ph5api
 from ph5.core.tests.test_base import LogTestCase, TempDirTestCase,\
     initialize_ex
 
@@ -21,7 +23,7 @@ def tearDown(self):
     def test_main(self):
         # add fcnt data of the same das in the same array but with different
         # deploytime
-        segd_dir = os.path.join(self.home, "ph5/test_data/segd/")
+        segd_dir = os.path.join(self.home, "ph5/test_data/segd/fairfield/")
         # create list file
         list_file = open('fcnt_list', "w")
         fileList = os.listdir(segd_dir)
@@ -71,7 +73,11 @@ def tearDown(self):
             segd2ph5.EXREC.ph5close()
         except AttributeError:
             pass
-
+        # Clear global variables
+        segd2ph5.EX = None
+        segd2ph5.DAS_INFO = {}
+        segd2ph5.MAP_INFO = {}
+        segd2ph5.ARRAY_T = {}
         super(TestSegDtoPH5, self).tearDown()
 
     def test_bit_weights(self):
@@ -109,17 +115,18 @@ def test_write_arrays(self):
                 self.assertEqual(r[k], arrays[i][k])
             i += 1
 
-    def test_process_traces(self):
+    def test_process_traces_Fairfield(self):
         segd2ph5.setLogger()
         segd2ph5.SD = SD = segdreader.Reader(
-            infile=os.path.join(self.home, 'ph5/test_data/segd/3ch.fcnt'))
+            infile=os.path.join(self.home,
+                                'ph5/test_data/segd/fairfield/3ch.fcnt'))
         SD.process_general_headers()
         SD.process_channel_set_descriptors()
         SD.process_extended_headers()
         SD.process_external_headers()
 
         SIZE = os.path.getsize(
-            os.path.join(self.home, 'ph5/test_data/segd/3ch.fcnt'))
+            os.path.join(self.home, 'ph5/test_data/segd/fairfield/3ch.fcnt'))
         # need to use relative path './miniPH5_00001.ph5' because
         # index_t's 'external_file_name_s will be chopped off if the path's
         # length is greater than 32
@@ -145,7 +152,7 @@ def test_process_traces(self):
         segd2ph5.TRACE_JSON = []
 
         # prepare trace
-        trace, cs = SD.process_trace()
+        trace, cs = SD.process_trace(0)
         T = segd2ph5.Trace(trace, SD.trace_headers)
 
         # ___________test process_traces ____________________
@@ -202,5 +209,61 @@ def test_process_traces(self):
                 self.assertEqual(segd2ph5.RESP.lines[0][k], response[k])
 
 
+class TestSegDtoPH5_SmartSolo(TempDirTestCase, LogTestCase):
+    def tearDown(self):
+        self.ph5object.ph5close()
+        super(TestSegDtoPH5_SmartSolo, self).tearDown()
+
+    def test_main(self):
+        sspath = os.path.join(
+            self.home, ("ph5/test_data/segd/smartsolo/453005483.1."
+                        "2021.03.15.16.00.00.000.E.segd"))
+        log1 = ('Line number is using invalid default value -1.'
+                ' Using 1 instead.')
+        log2 = ('Receiver point (stationID) is using invalid default '
+                'value -1. Using 1 instead.')
+        # add segD to ph5
+        testargs = ['segdtoph5', '-n', 'master.ph5', '-r', sspath]
+        with patch.object(sys, 'argv', testargs):
+            with LogCapture() as log:
+                log.setLevel(logging.WARNING)
+                segd2ph5.main()
+                self.assertEqual(log.records[0].msg, log1)
+                self.assertEqual(log.records[1].msg, log2)
+
+        self.ph5object = ph5api.PH5(path='.', nickname='master.ph5')
+        # check array_t
+        self.ph5object.read_array_t_names()
+        self.assertEqual(self.ph5object.Array_t_names, ['Array_t_001'])
+        self.ph5object.read_array_t('Array_t_001')
+        a = self.ph5object.Array_t['Array_t_001']['byid']['1'][2][0]
+        self.assertAlmostEqual(a['location/Y/value_d'], 30.17, 2)
+        self.assertAlmostEqual(a['location/X/value_d'], 90.77, 2)
+        self.assertEqual(a['das/manufacturer_s'], 'SmartSolo')
+        self.assertEqual(a['das/serial_number_s'], '1X1')
+        self.assertEqual(a['sensor/model_s'], 'GS-30CT')
+        self.assertEqual(a['deploy_time/epoch_l'], 1615824000)
+        self.assertEqual(a['pickup_time/epoch_l'], 1615825800)
+        self.assertEqual(a['channel_number_i'], 2)
+        self.assertEqual(a['seed_station_name_s'], '1')
+        self.assertEqual(a['seed_band_code_s'], 'D')
+        self.assertEqual(a['seed_instrument_code_s'], 'P')
+        self.assertEqual(a['sample_rate_i'], 500)
+        self.assertEqual(a['sample_rate_multiplier_i'], 1)
+
+        # check das_t - first trace
+        self.ph5object.read_das_g_names()
+        self.assertEqual(self.ph5object.Das_g_names.keys(), ['Das_g_1X1'])
+        das = self.ph5object.read_das_t('Das_g_1X1')
+        d = self.ph5object.Das_t[das]['rows'][0]
+        self.assertEqual(d['sample_rate_i'], 500)
+        self.assertEqual(d['array_name_data_a'], 'Data_a_0001')
+        self.assertEqual(d['sample_count_i'], 3001)
+        self.assertEqual(d['sample_rate_multiplier_i'], 1)
+        self.assertEqual(d['time/epoch_l'], 1615824000)
+        self.assertEqual(d['raw_file_name_s'],
+                         '453005483.1.2021.03.15.16.00..E')
+
+
 if __name__ == "__main__":
     unittest.main()
diff --git a/ph5/utilities/tests/test_validation.py b/ph5/utilities/tests/test_validation.py
index cdb50e31..3144c191 100644
--- a/ph5/utilities/tests/test_validation.py
+++ b/ph5/utilities/tests/test_validation.py
@@ -481,7 +481,7 @@ def tearDown(self):
     def test_check_has_response_filename(self):
         testargs = ['segdtoph5', '-n', 'master.ph5', '-U', '13N', '-r',
                     os.path.join(self.home,
-                                 'ph5/test_data/segd/3ch.fcnt')]
+                                 'ph5/test_data/segd/fairfield/3ch.fcnt')]
         with patch.object(sys, 'argv', testargs):
             segd2ph5.main()
         self.ph5 = ph5api.PH5(path=self.tmpdir, nickname='master.ph5')