GUTS Data Acquired at GGAO

The following pages present data analysis results based on data acquired
by the GUTS system while at GGAO. The analysis is somewhat abbreviated
due to the accelerated delivery schedule. No formal ground tests were
taken, and only 3 Lageos 1 and Lageos 2 passes were collocated. While
the GUTS system acquired its first pass, a small Starlette pass, on
September 17, 2003, system development continued to impact system
performance for the next several months. System performance became
relatively stable on the later part of December 2, 2003.

Three sections follow, starting with ground data, then satellite data,
and finally collocated data.

# Ground Data

The GUTS system acquired 67 ground target data sets since December 2,
2003, primarily to calibrate satellite passes. No formal ground tests
were performed due to the accelerated delivery schedule. Eight of the
data sets were taken in geosynchronous mode. The delays are two-way
delays, so the apparent range error between targets 5009991 and 509992
would be (56.4158-56.4081)/2, or 3.85mm.

Ground Targets Used Since December 2, 2003

  ------------------------- ------------ ---------- ----------------------
  **Target Name**           **Target     No. of     Mean Delay\
                            ID**         Data Sets  (meters)

  Target-B                  5009991      7          56.4158

  Target-C                  5009992      43         56.4081\
                                                    (5 sets edited)

  Target-B Geosynchronous   5009981      6          35.6250

  Target-C Geosynchronous   5009982      1          35.6303

  Internal Cal              5009901      9          56.1902

  Internal Cal              5009902      1          35.6531
  Geosynchronous                                    
  ------------------------- ------------ ---------- ----------------------

Ground Target Data Sets Acquired Since December 2, 2003

  ------------------------------------------------------------------------
  **Date Time       **Observations**   **RMS (meters)**  **Delay
  (GMT)**                                                (meters)**
  ----------------- ------------------ ----------------- -----------------
  5009991 -- Ground                                      
  Target B                                               

  2003-12-02        1084               0.001601          56.415386
  03:33:11                                               

  2003-12-02        1075               0.001494          56.413501
  05:05:51                                               

  2003-12-02        1731               0.001293          56.411957
  06:05:30                                               

  2003-12-02        962                0.001465          56.417484
  07:09:48                                               

  2003-12-30        1034               0.001655          56.415602
  23:30:38                                               

  2003-12-31        1057               0.001651          56.418068
  00:59:18                                               

  2003-12-31        1266               0.001596          56.41829
  01:25:51                                               

  5009992 -- Ground                                      
  Target C                                               

  2003-12-02        1120               0.001421          56.416708
  03:30:11                                               

  2003-12-02        1022               0.001429          56.413718
  05:08:48                                               

  2003-12-02        61                 0.001538          56.415633
  05:44:14                                               

  2003-12-02        766                0.001449          56.412864
  05:49:12                                               

  2003-12-02        872                0.001336          56.412055
  05:54:31                                               

  2003-12-02        1357               0.001704          56.429154
  21:39:50                                               

  2003-12-02        996                0.001561          56.412109
  23:46:07                                               

  2003-12-03        927                0.001286          56.415772
  00:41:12                                               

  2003-12-03        1058               0.001596          56.415247
  01:11:20                                               

  2003-12-03        895                0.001387          56.413785
  02:14:11                                               

  2003-12-03        1216               0.001547          56.415762
  05:12:05                                               

  2003-12-07        1012               0.001633          56.416104
  22:41:14                                               

  2003-12-07        1055               0.00159           56.414744
  23:30:04                                               

  2003-12-08        771                0.001573          56.417432
  00:39:54                                               

  2003-12-08        112                0.003667          57.088516
  01:21:15                                               

  2003-12-08        938                0.003661          57.090545
  01:22:16                                               

  2003-12-08        5859               0.003553          57.07439
  16:03:49                                               

  2003-12-08        1021               0.003625          57.073768
  16:31:46                                               

  2003-12-11        6411               314122.967        4289629.034
  22:49:02                                               

  2003-12-11        1107               0.002206          56.419803
  23:01:49                                               

  2003-12-12        1533               0.001556          56.414234
  00:40:40                                               

  2003-12-12        979                0.001438          56.407468
  02:13:32                                               

  2003-12-12        975                0.00149           56.407843
  03:13:05                                               

  2003-12-12        1288               0.001563          56.412802
  04:13:46                                               

  2003-12-12        1120               0.001585          56.412137
  05:37:44                                               

  2003-12-15        2096               0.001556          56.410396
  22:25:04                                               

  2003-12-16        1543               0.001675          56.410537
  00:10:15                                               

  2003-12-16        2724               0.001694          56.409445
  00:47:48                                               

  2003-12-16        1112               0.001739          56.408664
  01:41:20                                               

  2003-12-16        1014               0.00174           56.419071
  03:39:04                                               

  2003-12-31        1599               0.001496          56.43146
  22:13:22                                               

  2003-12-31        1088               0.001419          56.431943
  22:34:11                                               

  2004-01-07        1062               0.002237          56.387347
  22:50:33                                               

  2004-01-07        1036               0.001417          56.388516
  23:24:38                                               

  2004-01-08        1061               0.001394          56.388086
  00:06:03                                               

  2004-01-08        1034               0.001486          56.390165
  01:13:40                                               

  2004-01-08        1092               0.001572          56.391487
  02:23:30                                               

  2004-01-09        164                0.0013            56.388722
  23:32:18                                               

  2004-01-09        809                0.001316          56.388352
  23:33:24                                               

  2004-01-10        1196               0.00154           56.398319
  00:56:42                                               

  2004-01-10        1026               0.001384          56.395097
  01:28:57                                               

  2004-01-10        1166               0.00139           56.386039
  23:15:19                                               

  2004-01-11        946                0.00142           56.387387
  00:39:03                                               

  5009982 -- Ground                                      
  Target C                                               
  Geosynchronous                                         

  2003-12-03        245                0.014176          35.622757
  01:58:43                                               

  2003-12-31        320                0.01416           35.64273
  21:28:51                                               

  2003-12-31        202                0.014619          35.642154
  22:09:43                                               

  2004-01-10        462                0.012241          35.624634
  00:14:57                                               

  2004-01-10        482                0.012691          35.622044
  00:29:46                                               

  2004-01-10        105                0.015537          35.627681
  00:52:58                                               

  5009981 -- Ground                                      
  Target B                                               
  Geosynchronous                                         

  2003-12-31        136                0.012775          35.624965
  01:31:27                                               

  5009901 --                                             
  Internal                                               
  Calibration                                            
  Target                                                 

  2003-12-02        1572               0.002328          57.234901
  06:01:31                                               

  2003-12-02        945                0.003862          56.886064
  07:18:24                                               

  2003-12-02        367                0.003795          56.42211
  07:24:26                                               

  2003-12-02        2598               0.230652          56.203949
  07:30:10                                               

  2003-12-02        1978               0.008363          56.443646
  07:35:51                                               

  2003-12-02        553                0.009768          56.41532
  07:40:05                                               

  2003-12-03        90                 0.00901           55.235178
  01:17:08                                               

  2003-12-03        776                0.382815          55.633268
  01:17:30                                               

  2003-12-03        801                0.00652           55.237451
  01:19:11                                               

  5009902 --                                             
  Internal                                               
  Calibration                                            
  Target                                                 
  Geosynchronous                                         

  2003-12-03        664                0.01282           35.653103
  02:10:51                                               
  ------------------------------------------------------------------------

# Satellite Data

The GUTS system acquired a total of 88 satellite passes while tracking
from GGAO. 19 different satellites were tracked from September 17, 2003
through January 11, 2004. Data quality markedly improved on the night of
December 2, 2003, after some troubleshooting and corrections. The system
acquired 57 passes after that time.

Satellites Tracked at GGAO

  --------------------------------------------------------------------------
  **Name**     **SIC**     **COSPAR**   **Number of After        
                                        Passes**    12/02/2003   
  ------------ ----------- ------------ ----------- ------------ -----------
  Ajisai       1500        8606101      10          4            

  BEC          317         6503201      6           6            

  Champ        8002        0003902      2           2            

  Envisat-1    6179        0200901      5           4            

  ERS-2        6178        9502101      4           3            

  Etalon-1     525         8900103      3           3            

  Etalon-2     4146        8903903      1           0            

  GFO-1        8501        9800701      3           1            

  Glonass-84   9084        0006302      2           0            

  Glonass-87   9087        0105302      2           0            

  Glonass-89   9089        0206001      4           4            

  GPS-35       3535        9305401      2           2            

  Jason        4378        0105501      7           6            

  Lageos-1     1155        7603901      5           4            

  Lageos-2     5986        9207002      8           6            

  Larets       5557        0304206      3           2            

  Starlette    1134        7501001      7           0            

  Stella       643         9306102      4           4            

  Topex        4377        9205201      10          6            
  --------------------------------------------------------------------------

![](media/image1.wmf)

![](media/image2.wmf)

![](media/image3.wmf)

The following table displays some SPAS processing results retrieved from
the MySQL database. A 'G' following the Date of Data indicates that the
pass was acquired in geosynchronous mode.

Passes Acquired After December 2, 2003

  ----------------------------------------------------------------------------
  **Date of Data     **Number of      **Number   **IRV Fit RMS\ **High Order
  (GMT)**            Observations**   of Normal  (meters)**     Polynomial RMS
                                      Points**                  (meters)**
  ------------------ ---------------- ---------- -------------- --------------
  Ajisai (1500)                                                 

  2003-12-03         5169             23         0.011292       0.011339
  00:50:12                                                      

  2003-12-08         6643             27         0.01119        0.020668
  00:23:00                                                      

  2003-12-11         5916             24         0.011018       0.011731
  22:49:02                                                      

  2003-12-16         975              13         0.013975       0.013795
  01:20:03                                                      

  BEC (317)                                                     

  2003-12-03         3275             35         0.006432       0.014763
  01:01:50                                                      

  2003-12-03         3482             36         0.006734       0.04241
  02:54:38                                                      

  2003-12-07         3388             28         0.007627       0.008133
  23:15:54                                                      

  2003-12-08         4527             41         0.006792       0.182631
  01:09:22                                                      

  2003-12-12         2595             20         0.005145       0.005132
  02:06:26                                                      

  2003-12-16         2531             27         0.009176       0.146011
  01:01:04                                                      

  Champ (8002)                                                  

  2003-12-03         104              0          0.002192       0.002306
  02:42:30                                                      

  2004-01-08         627              0          0.002367       0.002423
  00:20:02                                                      

  Envisat-1 (6179)                                              

  2003-12-03         261              6          0.00336        0.003389
  02:18:00                                                      

  2003-12-12         2062             21         0.002911       0.003553
  02:35:58                                                      

  2004-01-08         2009             22         0.002929       0.002942
  01:47:28                                                      

  2004-01-11         2737             23         0.002709       0.002718
  01:52:58                                                      

  ERS-2 (6178)                                                  

  2003-12-03         1620             20         0.003803       0.020042
  02:45:48                                                      

  2003-12-12         2918             21         0.003316       0.042852
  03:03:06                                                      

  2004-01-08         1614             19         0.003158       0.003187
  02:16:12                                                      

  Etalon-1 (525)                                                

  2003-12-07         115              2          0.01272        0.012816
  22:45:47                                                      

  2003-12-07         67               1          0.013535       0.013535
  23:11:17                                                      

  2004-01-07         212              5          0.014695       0.013891
  23:03:53                                                      

  GFO-1 (8501)                                                  

  2003-12-12         3007             23         0.003016       0.06234
  03:58:48                                                      

  Glonass-89 (9089)                                             

  2003-12-02         112              2          0.010911       0.010822
  23:53:19                                                      

  2003-12-03         290              2          0.006274       0.005868
  01:29:58                                                      

  2003-12-03         52               2          0.017935       0.02041
  01:37:42                                                      

  2004-01-11         1215             7          0.009593       0.009476
  00:43:11                                                      

  GPS-35 (3535)                                                 

  2003-12-03         903              3          0.017576       0.017715
  01:48:58 G                                                    

  2004-01-09         2846             3          0.016782       0.01677
  23:37:25                                                      

  Jason (4378)                                                  

  2003-12-02         835              13         0.003339       0.003329
  22:03:42                                                      

  2003-12-03         1310             21         0.003026       0.003007
  00:00:21                                                      

  2003-12-31         2015             25         0.00409        0.004088
  01:05:43                                                      

  2004-01-08         1788             21         0.003063       0.003047
  00:13:51                                                      

  2004-01-10         2231             36         0.003321       0.003309
  01:00:38                                                      

  2004-01-11         468              20         0.003402       0.003409
  01:24:16                                                      

  Lageos-1 (1155)                                               

  2003-12-03         1404             3          0.005676       0.005606
  03:07:11                                                      

  2003-12-03         7541             13         0.005621       0.005599
  03:11:47                                                      

  2003-12-12         13133            24         0.005522       0.005724
  04:49:42                                                      

  2003-12-16         3604             22         0.007149       0.006989
  02:54:23                                                      

  Lageos-2 (5986)                                               

  2003-12-03         10584            23         0.005996       0.006082
  04:26:23                                                      

  2003-12-12         5216             14         0.006204       0.006123
  03:28:31                                                      

  2003-12-12         207              2          0.005459       0.005335
  04:08:13                                                      

  2004-01-08         7150             19         0.005979       0.005977
  00:35:36                                                      

  2004-01-08         667              6          0.006899       0.006836
  13:00:49                                                      

  2004-01-10         1528             5          0.006268       0.006179
  01:19:13                                                      

  Larets (5557)                                                 

  2003-12-03         264              5          0.003157       0.003169
  04:19:38                                                      

  2003-12-12         2698             25         0.003251       0.038523
  03:20:19                                                      

  Stella (643)                                                  

  2003-12-02         747              8          0.003362       0.003286
  21:52:30                                                      

  2003-12-07         1862             20         0.004412       0.006042
  22:58:06                                                      

  2003-12-31         2170             22         0.00396        0.003966
  22:24:30                                                      

  2004-01-07         2504             25         0.013507       0.056648
  22:38:21                                                      

  Topex (4377)                                                  

  2003-12-02         3941             38         0.01303        0.019016
  22:09:10                                                      

  2003-12-03         3194             28         0.010316       0.01027
  00:07:20                                                      

  2003-12-31         4848             40         0.013549       0.013631
  01:13:08                                                      

  2004-01-08         4974             42         0.012703       0.016186
  00:22:37                                                      

  2004-01-10         2786             26         0.008635       0.010074
  01:10:09                                                      

  2004-01-11         1768             16         0.007269       0.007184
  01:31:47                                                      
  ----------------------------------------------------------------------------

The GUTS system generated 131 normal points on Lageos 1 and Lageos 2 in
10 passes tracked during the period following December 2, 2003. The mean
normal point rms across all 131 normal points (with 1 edited) was
0.51mm. The following table provides the mean normal point rms on a pass
by pass basis.

Lageos Pass Normal Point RMS

  -----------------------------------------------------------------------
  **Date of Data (GMT)**  **Number of Normal      **Mean Normal Point RMS
                          Points**                (mm)**
  ----------------------- ----------------------- -----------------------
  Lageos--1 (1155)                                

  2003-12-03 03:07:11     3                       0.48

  2003-12-03 03:11:47     13                      0.28

  2003-12-12 04:49:42     24                      0.30

  2003-12-16 02:54:23     22                      1.10

  Lageos-2 (5986)                                 

  2003-12-03 04:26:23     23                      0.31

  2003-12-12 03:28:31     14                      0.50

  2003-12-12 04:08:13     2                       0.88

  2004-01-08 00:35:36     19                      0.37

  2004-01-08 13:00:49     6                       0.98

  2004-01-10 01:19:13     5                       0.40
  -----------------------------------------------------------------------

The following few pages display screen shots of a selection of SPAS
plots for Ajisai, Lageos 1, Lageos 2, and Topex passes. The Topex pass
is included mainly to show the receive energy dependency curve across
the full range of receive energies. Also included is a return rate plot
for a GPS-35 pass acquired in geosynchronous mode.

  -----------------------------------------------------------------------
  ![](media/image4.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image5.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image6.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image7.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image8.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image9.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image10.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image11.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image12.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image13.png){width="5.996527777777778in"
  height="3.936111111111111in"}

  ![](media/image14.png){width="5.996527777777778in"
  height="3.936111111111111in"}
  -----------------------------------------------------------------------

# Collocated Data

While at GGAO, the GUTS system collocated 25 passes with MOBLAS 7 on 12
different satellites. The following plots were generated by Polyquick
and compare GUTS (Test) data with data from the reference (Base)
station, MOBLAS 7.

+-----------------------------------------------------------------------+
| ![](media/image15.png){width="5.996527777777778in"                    |
| height="3.5541666666666667in"}                                        |
|                                                                       |
| Stella 2004-01-07 22:38:21                                            |
+-----------------------------------------------------------------------+
| ![](media/image16.png){width="5.992361111111111in"                    |
| height="3.5479166666666666in"}                                        |
|                                                                       |
| Champ 2004-01-08 00:20:02                                             |
+-----------------------------------------------------------------------+
| ![](media/image17.png){width="5.997222222222222in"                    |
| height="3.536111111111111in"}                                         |
|                                                                       |
| Topex 2004-01-08 00:22:37                                             |
+-----------------------------------------------------------------------+
| ![](media/image18.png){width="5.99375in"                              |
| height="3.577777777777778in"}                                         |
|                                                                       |
| Envisat-1 2004-01-08 01:47:28                                         |
+-----------------------------------------------------------------------+
| ![](media/image19.png){width="5.995138888888889in"                    |
| height="3.6333333333333333in"}                                        |
|                                                                       |
| Jason 2004-01-10 01:00:38                                             |
+-----------------------------------------------------------------------+
| ![](media/image20.png){width="5.99375in"                              |
| height="3.5881944444444445in"}                                        |
|                                                                       |
| Topex 2004-01-10 01:10:09                                             |
+-----------------------------------------------------------------------+
| ![](media/image21.png){width="5.997916666666667in"                    |
| height="3.571527777777778in"}                                         |
|                                                                       |
| Lageos 2 2004-01-10 01:19:13                                          |
+-----------------------------------------------------------------------+
| ![](media/image22.png){width="5.998611111111111in"                    |
| height="3.576388888888889in"}                                         |
|                                                                       |
| Glonass 89 2004-01-11 00:43:11                                        |
+-----------------------------------------------------------------------+
| ![](media/image23.png){width="5.991666666666666in"                    |
| height="3.558333333333333in"}                                         |
|                                                                       |
| Jason 2004-01-10 01:00:38                                             |
+-----------------------------------------------------------------------+
| ![](media/image24.png){width="5.996527777777778in"                    |
| height="3.5694444444444446in"}                                        |
|                                                                       |
| Topex 2004-01-11 01:31:47                                             |
+-----------------------------------------------------------------------+
| ![](media/image25.png){width="5.997916666666667in"                    |
| height="3.571527777777778in"}                                         |
|                                                                       |
| Envisat-1 2004-01-11 01:52:58                                         |
+-----------------------------------------------------------------------+

The following table lists the Polyquick results for the collocated
passes. In the table, the WTD Mean column gives the difference between
the systems, GUTS minus MOBLAS 7. MOBLAS 7 suffered a hardware failure
during the last half of December.

Polyquick Results for Collocated Passes

  ---------------------------------------------------------------------------------------------------------------------------------------------
  COSPAR    Date       Time    Bins   GUTS Dly   M7 Dly     M7 Obs GUTS   GUTS RMS M7 RMS  WTD     Peak    Diff.   Dif H WTD     GTS    M7 SFT
                       (GMT)                                       Obs                     Mean    Peak    Temp          Press   SFT    
  --------- ---------- ------- ------ ---------- ---------- ------ ------ -------- ------- ------- ------- ------- ----- ------- ------ -------
                       hhmm                                               mm       mm      mm      mm      C       \%    mlb     mm     mm

  9800701   11/18/03   124     11     33304.84   14597.49   773    866    6.2      7.4     3.4     10.7    1       1     0.2     0      0.9

  7501001   11/18/03   136     11     33304.84   14597.49   966    1705   11.9     11.1    5.2     32.8    1.6     1     0.2     0      0.9

  105501    11/18/03   202     6      33304.84   14597.49   1557   413    346.7    71.1    -0.9    4.7     0.7     0     0.1     0      0.9

  9306102   12/2/03    2148    3      28214.52   14597.34   806    732    3.5      7.3     -4      2.1     0.2     7     0.1     0      3.3

  105501    12/2/03    2356    15     28206.12   14597.34   1322   1042   3.5      6.9     -3.7    7       0.2     7     0.3     0      1.95

  6503201   12/3/03    58      13     28207.62   14597.34   1348   3156   1077.8   666.8   -29.3   518.5   0.1     6     0.1     0      1.95

  9205201   12/3/03    6       14     28206.12   14597.34   1055   2555   33.9     27.7    -14     14.3    0.1     7     0.2     0      1.95

  8606101   12/3/03    48      17     28207.92   14597.34   1631   3595   14.4     15.3    -13.4   18.6    0.1     7     0.2     0      1.95

  9207002   12/3/03    426     3      28207.92   14601.54   84     625    6.8      8.7     -2.2    2.5     1.6     9     0.2     0      0

  9306102   12/7/03    2256    8      28207.77   14600.19   1170   1260   631.1    608.9   -12     607.7   0.5     11    0.2     0.75   -1.35

  8606101   12/8/03    20      2      28208.52   14599.74   337    291    10.9     14.1    -3.2    0.3     1.3     12    0.2     1.35   2.25

  6503201   12/8/03    108     34     28208.67   14600.49   1993   4471   614      575.3   -12.3   397.5   2.9     7     0.2     0      -0.45

  7603901   12/16/03   254     1      28208.52   14592.85   60     15     5.9      13.8    2.2     0       2.6     3     0.1     5.25   4.95

  8606101   12/16/03   118     12     28204.47   14589.25   1195   964    14.4     17.5    -8      11.7    0.1     5     0.2     0.45   4.8

  9306102   1/7/04     2239    11     28193.7    14590      381    780    6.4      12.8    -5.5    15.7    7       9     0.25    0      1.95

  3902      1/8/04     20      7      28194.3    14593.3    123    288    4.8      15.3    -20.9   14.6    7.8     9     0.2     0.3    1.05

  9205201   1/8/04     23      15     28194.3    14593.3    783    1426   13.2     19.2    -6.9    20.7    7.7     9     0.23    0.3    1.5

  200901    1/8/04     147     4      28195.5    14594.8    139    166    6.6      18      1.7     10.5    8.6     9     0.2     0.6    4.8

  105501    1/10/04    101     23     28198.8    14579.5    699    1719   4.2      11.9    -21.8   11.2    11.8    7     0.14    1.65   8.5

  9205201   1/10/04    110     21     28198.3    14579.5    828    2190   9        15.9    -31.7   13.5    12      7     0.1     1.65   8.5

  9207002   1/10/04    119     4      28197.9    14579.5    194    1218   7.8      12.3    4.5     9.6     12.5    8     0.17    1.65   8.5

  206001    1/11/04    43      2      28193.7    23798.3    132    298    12.3     15.3    5.8     2.4     20      6     0.1     0      -4.05

  105501    1/11/04    124     6      28193.7    14577.3    82     227    4.1      9.5     -20     4.6     24      8     0.1     0      1.05

  9205201   1/11/04    132     5      28193.7    14577.3    621    1637   8        13.2    -23.6   16.7    23.9    14    0.1     0      1.05

  200901    1/11/04    153     12     28193.7    14577.3    499    1528   3.4      10.3    6.3     5.1     23.5    17    0.2     0      1.05
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