1999JM8.202.log

H = 15 ==> diameter = 3.1 km; assume period = 12 days (!), equatorial view, radar albedo
= 0.1.  Assume optimal parameters for Goldstone and Tsys = 31 K, sensitivity = 7.3 K/Jy
for Arecibo.  Tracks in bold are those scheduled for observations, where the times
shown and SNR/date correspond to the actual tracks.

                           ------------GOLDSTONE----------  -------------ARECIBO-----------
                                            Max                              Max
                                    Dat     Run    UTC               Dat     Run    UTC
    Date   RA  Decl Delta  Runs     SNR     SNR   Window    Runs     SNR     SNR   Window
1999  7 18 190  58  0.105   190    1400     100 19:55-07:15    0       0       0      -
1999  7 20 183  61  0.094    23     720     160 02:30-03:40    0       0       0      -
1999  7 21 178  62  0.088    22     860     180 17:40-18:45    0       0       0      -
1999  7 23 164  65  0.078    27    1600     290 00:30-01:40    0       0       0      -
1999  7 24 154  65  0.073    82    3300     350 16:55-20:15    0       0       0      -
1999  7 27 119  62  0.062    41    4100     640 01:30-02:55    0       0       0      -
1999  7 28 108  59  0.059    56    5500     730 17:10-19:00    0       0       0      -
1999  7 31  86  43  0.057    92    8100     850 17:00-19:55    0       0       0      -
1999  8  1  80  37  0.058   132    9400     810 11:45-16:00   53   47000    6400 12:17-14:00
1999  8  2  76  32  0.060   327   12000     720 10:30-21:53   72   71000    8400 11:35-14:00
1999  8  3  73  26  0.062   302   10000     620 10:24-21:23   82   66000    7200 11:09-13:59
1999  8  4  71  21  0.066   277    7900     520 10:24-20:53   65   48000    6000 11:00-13:44
1999  8  5  68  16  0.069   254    6200     420 10:24-20:30   65   41000    5000 11:00-13:29

Goldstone Track Assignments

                        UTC              PDT
UTC        UTC    TRANSMIT WINDOW  TRANSMIT WINDOW
1999      1999       START STOP               START STOP
DOY       Date       hhmm-hhmm                hhmm-hhmm     DURATION

199       Jul 18     1955-0715    Sun Jul 18  1255-0015      11:20
201       Jul 20     0230-0340    Mon Jul 19  1930-2040       1:10
202       Jul 21     1740-1845    Wed Jul 21  1040-1145       1:05
204       Jul 23     0030-0140    Thu Jul 22  1730-1840       1:10
205       Jul 24     1655-2015    Sat Jul 24  0955-1315       3:20
208       Jul 27     0130-0255    Mon Jul 26  1830-1955       1:25
209       Jul 28     1710-1900    Wed Jul 28  1010-1200       1:50 **
212       Jul 31     1700-1955    Sat Jul 31  1000-1255       2:55 **
213       Aug  1     1145-1600    Sun Aug  1  0445-0900       4:05 ** 

** = Tracks that have DSS-13 support

Total duration: 28:20

Arecibo Track Assignments


                        UTC              PDT              AST
UTC        UTC    TRANSMIT WINDOW  TRANSMIT WINDOW  TRANSMIT WINDOW
1999      1999       START STOP       START STOP       START STOP
DOY       Date       hhmm-hhmm        hhmm-hhmm        hhmm-hhmm      Duration

213       Aug 1      1217-1400        0517-0700        0817-1000        1:43
214       Aug 2      1135-1400        0435-0700        0735-1000        2:25
215       Aug 3      1109-1359        0409-0659        0709-0959        2:50
216       Aug 4      1100-1344        0400-0634        0700-0944        2:44
217       Aug 5      1100-1329        0400-0629        0700-0929        2:29

During the third track (!), the strategy will be to get a
CW detection and then move to 1 us x 0.1 Hz imaging as soon as possible.
If the JX setup (127 code, 64 point FFT) is working then we'll use it 
and forget about the Toutatis set up (255 code, 256 point FFT).

Starting CW setup for the third track:

TX polarization           RCP
RCV polarization          LCP
Frequencies:              4
Dwell:                    20 seconds
Bandwidth:                1000 Hz
Sampling interval:        10000 x 0.1 usec
VMT FFT for PSD files:    4096 for 0.244-Hz resolution


Possible ranging setups:
---------------------------------------------------------------------------
127 x 64 10-usec single sample

baud            10 usec
code            127
gates           127
FFT             64
CLT             11
ncoh            2
bandwidth       394 Hz   
resolution      6.15 Hz
TXOFF           TBD
incoh sums      64 => 10.4 sec/record
---------------------------------------------------------------------------
127 x 64 11-usec single sample.

baud            11 usec
code            127
gates           127
PRP             1397
FFT             64
CLT             11
ncoh            2
bandwidth       357.9 Hz   
resolution      5.59 Hz
TXOFF           TBD
-------------------------------------------------------------------------
0.125-usec ranging

setup           JX1XS001  
baud            0.125 usec
code            127
gates           127
FFT             64
ncoh            1968
bandwidth       32.008 Hz     
resolution      0.5001 Hz
TXOFF           6 Hz = 12 cells, => cell 44
incoh sums      4 looks=> 8 sec/record => expect records per run ~ RTT/8
CLT gate        34.8

_____________________________________________________________________
POSSIBLE RANGING SETUPS: (code=127, FFT=64, single-pol'n) 
   These are from JX, w/ max-band (min-acc) options from Ray Jurgens.
   Currently configured for 5-sec records.
_______________________________________________________________________
 Setup        Baud        RP         1-acc 1-acc      
            usec   m      usec        band   res    acc  band     res 
_______________________________________________________________________
 
JX1XS110  11.000 1650    1397.0      715.8  11.2      2   358     5.6

JX1XS070   7.000 1050     889.0     1124.9  17.6      3   375     5.9
                                                      
JX1XS020   2.000  300     254.0     3937.0  61.5     12   328     5.1
                                                      4   984    15.4 

JX1XS010   1.000  150     127.0     7874.0 123.0     41   192     3.0 
                                                      8   984    15.4 

JX1XS005   0.500   75      63.5    15748.0 246.1    123   128     2.0 
                                                     15  1050    16.4 

JX1XS002   0.250   37.5    31.75   31496.1 492.1    492    64     1.0
                                                     30  1050    16.4 
 
JX1XS001   0.125   18.75   15.875  62992.1 984.3   1970    32     0.5 
                                                     60  1050    16.4 
_______________________________________________________________________

Ray Jurgens and Carl Franck have added 3 new configurations that
provide range over-sampling.  The original long baud configurations
are set up as follows:

Config.    baud   over  range   FFT     coh     BW      Res
           micro  samp  gates   freqs   sums    Hz      Hz
           sec

JX1XS0700   7.0     1   127     64      3       375     5.86
JX1XS1000  10.0     1   127     64      2       394     6.15
JX1XS1100  11.0     1   127     64      2       358     5.59

We added the following to the JX set:

JX1XS0350   7.0     2   254     64      3       375     5.86
JX1XS0500  10.0     2   254     64      2       394     6.15
JX1XS0550  11.0     2   254     64      2       358     5.59

These new configurations have exactly the same coverage in range
and Doppler frequency as the previus set.  They provide 2 range samples
per baud filling in the deep hole between gates in the original set.  The
only disadvantages in using these are that they record more data in a 
given amount of time for the same amount of integration, and the display
is crowded if you try to show all gates at one time.  

SNR tests using the these are essentially identical to the originals.

____________________________________________________________________
RANGING SETUPS from Toutatis 1992: (code=255, FFT=256, 1 channel)
____________________________________________________________________
Setup     Baud   NACC       bandwidth  resolution   1/res'n   CLT
                               Hz         Hz          sec     gate
____________________________________________________________________

TU1XS01   0.125    123      255.06      0.9963        1.00    34
                   890       35.25      0.1377        7.26
                  1471       21.327     0.08331      12.00
                  2210       14.196     0.05545      18.03
                  2942       10.664     0.04166      24.01
                  3309        9.4810    0.03704      27.00
                  3700        8.4791    0.03312      30.19
                  7400        4.2395    0.01656      60.38
                 14800        2.1198    0.00828     120.77
                     
TU1XS02   0.25     123      127.5       0.498    
TU1XS04   0.500    307       25.5       0.100      
TU1XS08   1.000    153       25.6       0.100      
TU1XS16   2.000      4      490.2       1.915     
TU1XS32   4.000      2      490.2       1.915      
TU1XS33   4.125      2      475.3       1.857      
TU1XS80  10.000      1      392.2       1.532                 11      
TU1XS88  11.000      1      356.5       1.393                 11 


Instructions
NOTE: Data should be moved to the appropriate subdirectories in
      intruder:/d1/1999JM8/raw/

1999 JM8 POINTING: 


For these observations, we need the following files:

            PRDX.OUT.s19
           PUNCH.OUT.s19

These files are created in:  intruder:/export/data2/osod/ops/1999jm8/

and are copied to:           intruder:/d1/1999JM8/support/

POINTING  

Date (UTC)   DOY  hhmmss     RA      Dec   MACRO      TX Offsets      RTT  OSOD
                                                     LHA      Dec     

1999 07 21   202  170000 173.8079 63.3869    A                        84.1  19
1999 07 21   202  180000 173.5323 63.4445    A     0.0065   0.0013    83.8  19
1999 07 21   202  190000 173.2503 63.5016    A                        83.6  19

===================================================================================

PRDX.OUT.s19
RECEIVER    U.T.         RANGE         DOPPLER      LHA      DEC      AZ      EL 

 1999 JUL 21 17:40     83.9054528137   528307.523 273.5317  63.4253  32.064  32.743   
 1999 JUL 21 17:50     83.8684295363   528086.676 276.0847  63.4349  32.377  33.854   
 1999 JUL 21 18:00     83.8314224298   527846.116 278.6379  63.4445  32.643  34.974   
 1999 JUL 21 18:10     83.7944328751   527585.973 281.1913  63.4540  32.862  36.102   
 1999 JUL 21 18:20     83.7574622315   527306.414 283.7449  63.4636  33.030  37.235   
 1999 JUL 21 18:30     83.7205118605   527007.644 286.2987  63.4731  33.146  38.372   
 1999 JUL 21 18:40     83.6835830967   526689.908 288.8526  63.4826  33.206  39.511   
 1999 JUL 21 18:50     83.6466772635   526353.484 291.4067  63.4921  33.209  40.651 

================================================================================

BEGIN ELECTRONIC LOG

Present: Benner, Jurgens, Rose, Franck, Kelley, Jao, Dendrenos

Using Solution 19

1703: Ready except for the transmitter.  

TX Power = 460 kW for CW

 TX  polarization             RCP
 RCV polarization             1=RCP=OC=15.06 K at zenith
                              2=LCP=SC=16.19 K at zenith


Ch 1 Tsys =  17.79 on point (31.75 deg el)
Ch 2      =  18.96

Starting CW setup:
TX  polarization              RCP
 RCV polarization             both
 Frequencies:                 4
 Dwell:                       20 seconds
 Bandwidth:                   1000 Hz
 Sampling interval:           10000 x 0.1 usec
 VME FFT for PSD files:       4096 for 0.244-Hz resolution

CW objective: verify that we have echoes, then go to high res imaging
using the 1 us x 0.1 Hz Toutatis setup 

174009: beam is up

Echo!  Very strong
bandwidth is about 1.9 Hz, center freq = +0.8+/-0.4.

This means the echoes will drift in delay by about 0.33 us/hour,
or less than one range gate for the duration of the track.

Astrometric datum: 
Epoch = 1999 July 21 17:40:00  

 1999 JUL 21 17:40     83.9054528137   528307.523
                                           +0.8 +/- 0.4 Hz
                                       --------
                                       528308.3 +/-0.4 Hz

 DOPPLER (weight in Hertz)  :
  1937 11 27 22:20:00    P -540576.10D0 1.0000 8510.D6  -14  -13 Reber,G.
  yyyy mm dd HH:MM:SS type obsrvabl(Hz) weight frq(Hz) xstn rstn observer...

  1999 07 21 17:40:00    P  528308.3D0  0.4    8560.D6  -14  -14 Benner, L.
  Corrn of +0.8 Hz to soln 19 using center freq w/0.244 Hz res'n.


Switch to 1.0 us x 0.1 Hz


Configure for 1.0 us x 0.1 Hz imaging
=====================================
Setup:    baud    ncoh     bandwidth   dfreq
TU1XS08   1.000    153       25.6       0.100 

setup           TU1XS08
baud            1.0 usec
code            255
gates           255
FFT             256
ncoh            153
bandwidth       25.6 Hz     
resolution      0.1 Hz
TXOFF           5 Hz = 50 cells, => cell 178
incoh sums       looks=>  sec/record 
CLT gate        13

175724: beam is up

Echo!  Echo is at the crossover point in the code. very strong.

LE is near gate 255

Insert a transmitter offset of +30 gates to move up the image
Same file as the first two runs

VAX record 15 = first one w/+30 us tx offset

Echo is very strong.  Asymmetric.  stronger on negative edge.

We probably could have used a higher res'n setup, but not enough
time today to switch.  Tomorrow double (or more) the baud.  0.25 us
might even work, but need to nail the ephemeris to remove drift.

Ralph McConahy stopped by to check out the images.  I gave him copies
of the images from today and the previous track

Echoes are beautiful.  There is joy in Mudville this morning.

Randy reminded me that we could do dual-poln imaging--the echoes are
certainly strong enough.  Set it up for tomorrow's track.

Another possibility: interferometry.  

The visible range extent from
the previous track is about 20 1.0 us gates or about 3 km.  Thus the 
physical range extent could easily be twice that or 6 km.  

1837: clear display & restart accumulation: still there.

1843: about to start last receive


1845: game over.  Very successful track.

Final Tsys:
El = 40.17 deg
Ch 1  Tsys = 16.88 K
Ch 2  Tsys = 18.12 K


UPDATE THE ORBIT
================

Add one range from the last track and one Doppler from today's track.  

Update the range from the 1.0 us image on July 20:
CLT = gate 13
LE = gate 46, measured using the Spyglass Transform file on reason.
Difference = 46-13 = 33 gates or 33 usec.  But COM is probably close to
the trailing edge (TE) which was 21 gates deeper at gate 67.

67-13=54 gates => 54 usec mod 127 usec 

==> PUNT; I am too tired to mess with this.

Deal with the Doppler only.

Here is the the Doppler from above:

  1999 07 21 17:40:00    P  528308.3D0  0.4    8560.D6  -14  -14 Benner, L.
  Corrn of +0.8 Hz to soln 19 using center freq w/0.244 Hz res'n.

osod

cmod 19

dis cmod o

^L                 Observations, Residuals and Residual Differences  -  Pass 2
                      Observation        Obs    J2000 Residuals      Sigmas    Res. Differences
     Date(UTC)       R.A.      Dec.      Code   R.A.cosD    Dec.    R.A. Dec  Predicted-2nd Pass
*** WARNING: CAPRCH never entered triple mode
*** WARNING: CAPRCH never entered triple mode
AP1999 721.736111 174000    528308.3D0   -14       0.50  Doppler    0.400         0.00
*** WARNING: TPM data predicted
AR1999 720.125000  30000    92.6270694   -14      -1.08  Delay     10.000         0.00
*** WARNING: TPM data predicted
AP1999 720.111111  24000    547278.4D0   -14       0.13  Doppler    0.300         0.00
*** WARNING: TPM data predicted
AP1999 718.895833 213000    580912.4D0   -14       0.09  Doppler    0.400         0.00


Pass 2 Weighted Residual Statistics "res2":
 
    Type     # pts           Mean           Std dev.           RMS
    ----     -----       ------------     ------------     ------------
1.  opt RA     220        0.59973E-01      0.45684E+00      0.45973E+00
2.  opt DEC    220       -0.88482E-01      0.67487E+00      0.67912E+00
3.  dly          1       -0.10770E+01     NaN               0.10770E+01
4.  dop          3        0.24367E+00      0.22639E+00      0.30584E+00

iter 19

iter 20

eph 21

pred

















================================================================================

MASTERLOG
=========
                                                          rcsta  rcend
file        setup         Bandwidth  osod  TXoff    Runs  HHMMSS-HHMMSS  Comments
------------------------------------------------------------------------------------
99202      CW 4k FFT        1000      19              1   174136-174257         
jm20203   1.0 us x 0.1 Hz     25.6    19   +5 Hz      2   175851-180305  255 code x 256 pt FFT
jm20203   1.0 us x 0.1 Hz     25.6    19 +5 Hz,+30us 14   180541-184433  255 code x 256 pt FFT



PROBLEMS
========

NONE!


Things to do before leaving
===========================
1. transfer ranging data -> intruder then ftp to JPL 	==> DONE
2. transfer cw data      -> intruder then ftp to JPL	==> DONE
3. transfer tx/rcv logs to intruder and then to JPL	==> DONE
4. write protect all data and log files	at JPL		==> DONE
5. update website on reason				==> DONE
6. set up log file for tomorrow				==> DONE
7. critique 						==> DONE
8. get the data package					==> DONE
9. back up the data ->  exabyte tape & write protect it	==> DONE
10.organize hardcopies  				==> DONE
11.ftp observational log -> JPL and write protect it	==> DONE
12.e-mail brief summary of results -> co-authors        ==> 
13.e-mail brief summary -> Ralph & Larry                ==> 

Draft critique
==============
Excellent track!  Obtained strong images with 150 meter resolution.  
Interesting features on surface.  Everything worked.