Subject: [IGSREPORT-4334] Wk 0930 JPL Analysis Report
From: D C Jefferson
Date: Mon, 17 Nov 1997 14:58:26 PST

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IGS Electronic Report    Mon Nov 17 14:58:26 PST 1997      Message Number 4334
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Author: D C Jefferson
Subject: Wk 0930 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0930 (DAYS 306-312, DATES 1997 Nov 02 - Nov 08)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

D C Jefferson, Y E Bar-Sever, M B Heflin, M M Watkins, F H Webb, J F Zumberge

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

Files listed below are available in Unix compressed format and can be
retrieved using anonymous ftp to sideshow.jpl.nasa.gov (128.149.70.41),
directory pub/jpligsac/0930.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09307.sum         This text file.
jpl09307.erp         Earth rotation parameters for GPS week 930.
jpl09307.snx         Ground station coordinates for GPS week 930, SINEX format.
jpl0930[0-6].sp3     GPS ephemerides for GPS week 930, sp3 format.
jpl0930[0-6].tro     Ground station troposphere estimates for GPS week 930.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

According to the file nanu1997.mes obtained from the IGS CBIS, PRN05 was
unusable on day 307 for maintenance/repositioning.  Data from this satellite
did not meet our initial convergence criteria on this nor the previous day
(306), and have been excluded from the analyses of both days.

A frequency shift was detected for GPS15 at approximately 15:35 UT on day 310.

Due to potential problems, data from stations mentioned below were not
considered for use in the global solution for the day indicated.  (For
geographical reasons, they may not have been used in any case.)

WARNING: PIE1 (not ALGO) used as reference clock day 306.
WARNING: NLIB (not ALGO) used as reference clock day 307.
WARNING: Data from PRN05 excluded on days 306 and 307 due to a maneuver.
WARNING: Data from CRO1, KOSG, WTZR excluded day 306.
WARNING: Data from CASA, CRO1, CSN1, HOLC, KELY, KSTU excluded day 307.
WARNING: Data from CASA, HOLC, KSTU, SANT excluded day 308.
WARNING: Data from CASA, KSTU excluded day 309.
WARNING: Data from KELY, MATE, SANT, XIAN excluded day 310.
WARNING: Data from HOLP excluded day 311.

In the following table, UT1R-UTC are the integrated values based on estimated
LODR values in the adjacent column.  See IGS Report No. 1498 (jpl07827.sum)
for details:

JPL ERP TABLE                                GPS week 930 (1997 Nov 02 - Nov 08)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
50754.50  21706  28835   319976  2301    3    4    10     10 37  9 24    9 -252 
50755.50  21671  28628   317662  2328    3    4    10     10 37 11 24  -18 -261 
50756.50  21623  28415   315334  2327    3    4     9      9 37 10 25  -10 -286 
50757.50  21547  28178   312975  2392    3    4    10     10 37 11 25  -28 -282 
50758.50  21488  27912   310589  2380    3    4     9      9 37 10 25   -9 -216 
50759.50  21439  27718   308217  2364    3    4     9      9 37 10 25  -33 -254 
50760.50  21349  27486   305866  2337    3    3     9      9 37 10 25    8 -236 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 930:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 930 (1997 Nov 02 - Nov 08)
      97 11  2   97 11  3   97 11  4   97 11  5   97 11  6   97 11  7   97 11  8
prn   3d rss (cm)
  1      12         23         24         38         14         28         31   
  2       9          8          6         10         11         10          9   
  3      18         17         17         13         15         19         23   
  4      16         14         10         12          8         12         10   
  5                             8          8          5          5          5   
  6       8         17          8          8          8          6         10   
  7      11         10          6          7         12         17         12   
  9       7         12         16          7          9          6          6   
 10       9          9          5         10          7          5          5   
 14      20         20         12         15         14         44         22   
 15      14         12         15         19         11         17         19   
 16      14         12         11         13          9         11         13   
 17      13         24         12         10         16         12          7   
 18      11          6          6         10          7          7         12   
 19      10          6          6         20         13         18          6   
 21      12         14         19         16          7         12          8   
 22      11         16         12         10          7         11          7   
 23      21         16         13         28         19         16         18   
 24      11          9         10         13          4         11          7   
 25      14         31         19         12         14         25         22   
 26       9         17          6          9          6          7          4   
 27       7          6          8          8          8         10          7   
 29       9         10         11         11         14         14         17   
 30       4         14          8          9          7          4          9   
 31      10         11         14         10          9         16         12   
_______________________
END ORBIT REPEATABILITY TABLE

The following table statistically summarizes this week's "engineering data", as
described in IGS Report No. 1528:

JPL ENGINEERING DATA SUMMARY TABLE           GPS week 930 (1997 Nov 02 - Nov 08)
 receiver/transmitter (dot means point positioned, * means fiducial site)
 |     days analyzed
 |     |      rms clock noise (ns)
 |     |      |           average clock solution (us)
 |     |      |           |           rms pseudorange (cm)
 |     |      |           |           |   (dot means pcode not analyzed)
 |     |      |           |           |           rms phase (mm)
 |     |      |           |           |           |           average arc (hr)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALGO*  6.9    161.        1.41        51.8        4.00        2.79    
ANKR   1.9    129.        .513        58.0        4.00        2.88    
AREQ   5.0    99.4       -.889e-01    56.6        4.00        1.85    
ASC1   4.0    .567e+04    .217        61.9        4.82        1.69    
BAHR   6.9    2.31        742.        52.8        6.16        2.83    
BRAZ    .9    113.       -.415        68.0        5.00        1.88    
BRMU   1.0    107.       -.374        37.0        5.00        2.83    
BRUS   2.0    .118        3.41        61.5        4.53        2.80    
CAS1   6.8    19.6        384.        53.6        6.01        1.43    
CHAT   7.0    105.       -.306e-01    77.6        5.45        2.64    
COCO   6.8    93.8       -.503e+04    44.8        5.32        2.86    
CRO1   4.0    150.       -.390        48.8        5.52        1.79    
DGAR   6.7    997.        .374e-01    74.6        6.00        1.64    
FAIR*  7.0    .106       -.145        36.2        4.45        1.97    
FLIN   2.0    273.        .162        47.2        3.54        2.62    
FORT   6.0    .123       -.199        73.8        5.85        1.56    
GOL2*  6.9    28.9        .373        42.1        4.30        1.93    
GUAM   6.8    134.       -.406e-01    58.0        7.16        2.29    
HARK    .9    18.8        2.14        60.0        5.00        2.64    
IISC   4.8    107.       -.182        71.8        5.22        2.02    
IRKT   3.5    .199       -.362        54.1        5.00        2.24    
KELY   1.6    .321e+04   -1.90        39.1        5.57        1.64    
KERG    .9    .267e+04    866.          .         5.00        2.38    
KIRU   2.0    4.17       -.373e-01    51.5        6.00        1.78    
KIT3   2.8    113.        .164        61.5        4.66        2.98    
KOKB*  6.4    .954e+05   -58.2        83.2        4.62        1.71    
KOSG*  5.9    .405e+04   -17.9        40.9        4.24        2.40    
KOUR   4.0    7.46       -2.35        65.9        5.51        1.71    
KWJ1   7.0    117.       -.405e-01    70.4        7.17        1.92    
LHAS   7.0    96.3       -.331e-01    51.3        4.30        2.66    
LPGS   3.9    444.        .302e-01    60.9        5.00        1.85    
MAC1   6.8    83.9       -.296e-01    37.6        4.03        2.15    
MAD2   2.9    999.       -2.35        90.4        6.00        1.92    
MADR*  6.9    5.61       -.313          .         6.30        2.28    
MALI   4.8    445.       -16.6        88.8        7.01        1.92    
MAS1   4.0    2.60        .331        47.8        5.53        2.40    
MCM4   6.9    105.       -.282e-01    45.9        5.00        1.23    
MDVO   2.0    .225e+05    586.        72.1        6.51        1.93    
MKEA   7.0    .120       -.462        53.7        4.74        2.57    
MOIN   5.0    119.       -.403e-01    66.1        5.69        1.61    
NICO   1.0    81.5       -.497        39.0        5.00        2.45    
NLIB    .9    .           .           49.0        4.00        2.70    
NOTO   3.0    .848e-01   -2.68        36.7        4.35        2.79    
OHIG   1.0    .746e+06    13.1        45.0        5.00        1.74    
PERT   5.0    2.56       -3.62        52.2        4.63        2.68    
PIE1    .9    .           .           45.0        4.00        2.56    
POL2   1.0    80.4       -.587        35.0        4.00        2.53    
RCM6   1.0    96.4       -.184        57.0        5.00        2.45    
REYK   5.0    81.8        .137        58.2        6.47        1.87    
SANT*  2.6    614.        .216        48.2        5.37        1.53    
SELE   3.0    114.       -.700e-01    37.7        4.00        3.04    
SHAO   6.0    95.7       -.244e-02    49.9        4.00        2.53    
STJO   5.0    438.        1.63        45.3        4.86        2.53    
TAEJ    .9    .292e+06    479.        48.0        5.00        2.52    
TID2*  6.9    24.1       -.141        39.8        5.16        2.82    
TSKB   1.0    1.42       -1.17        46.0        5.00        3.20    
WES2   1.0    .432        .630        57.0        6.00        2.69    
WTZR*  6.0    .389       -.298        63.9        4.69        2.68    
YAR1*  7.0    87.0       -.384e-01    41.8        4.00        1.97    
YELL*  7.0    7.90       -3.34        39.5        4.57        1.75    
PRN01  6.9    83.1        32.0        56.5        5.00        1.87    
PRN02  7.0    82.1       -420.        57.6        5.00        2.19    
PRN03  6.9    82.2        68.3        56.7        5.32        2.11    
PRN04  6.8    77.8        55.3        56.6        5.00        1.83    
PRN05  5.0    80.7        121.        54.6        5.00        2.35    
PRN06  7.0    80.5       -.265        56.6        5.45        2.31    
PRN07  7.0    81.1        759.        50.9        5.00        2.19    
PRN09  7.0    81.5       -17.2        54.9        5.00        2.11    
PRN10  7.0    80.9        14.7        57.0        5.00        2.06    
PRN14  6.9    80.8        23.8        54.3        5.00        1.92    
PRN15  6.7    3.90        486.        59.9        5.31        1.96    
PRN16  7.0    80.2        34.7        56.7        5.00        2.10    
PRN17  6.6    83.9       -164.        59.7        5.30        2.00    
PRN18  7.0    82.0        6.77        53.0        5.00        2.21    
PRN19  7.0    82.2        294.        52.7        5.31        2.41    
PRN21  7.0    81.1        2.87        57.9        5.00        2.01    
PRN22  7.0    82.5        27.1        58.4        5.32        2.22    
PRN23  7.0    81.5        5.53        57.9        5.31        2.19    
PRN24  6.8    80.7        785.        56.3        5.30        1.94    
PRN25  7.0    80.4       -6.41        53.6        5.49        1.79    
PRN26  7.0    79.9       -36.0        53.4        5.00        2.21    
PRN27  7.0    80.7        6.35        55.8        5.00        2.28    
PRN29  7.0    82.2        209.        53.2        5.00        2.11    
PRN30  7.0    80.5       -8.23        53.9        5.00        2.32    
PRN31  7.0    83.3       -.237        58.3        5.00        2.01    
_______________________
END ENGINEERING DATA SUMMARY TABLE

As described in IGS Mail Message 37, the following table compares the JPL
precise ephemerides with those from the broadcast ephemeris:

JPL COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
      97 11  2   97 11  3   97 11  4   97 11  5   97 11  6   97 11  7   97 11  8
prn   3d rss (cm)
  1     449        291        251        291        244        537        292   
  2     283        268        269        158        189        196        243   
  3     339        188        194        319        578        463        225   
  4     282        357        486        370        300        315        269   
  5                          1113        519        541        445        360   
  6     567        547        556        624        577        520        467   
  7     334        361        330        276        322        290        252   
  9     246        332        381        234        206        224        271   
 10     354        422        212        426        427        404        233   
 14     341        282        372        261        331        906        739   
 15     292        341        750        598        275        536        318   
 16     280        739       1073        632        783        190        362   
 17     238        359        803        269        531        643        268   
 18     373        292        551        416        370        340        350   
 19     756        455        578        690       1056        822        441   
 21     255        415        265        185        265        419        338   
 22     319        369        564        433        282        388        770   
 23     205        380        330        229        274        489        893   
 24     859        892        323        306        432        364        286   
 25     742        497        586        650        628        460        423   
 26     216        354        334        145        177        310        271   
 27     387        477        436        313        457        422        468   
 29     554        779        497        195        306        710        521   
 30     227        454        338        199        367        217        361   
 31     275        195        244        187        186        254        193   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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