Subject: [IGSREPORT-5193] Wk 0968 JPL Analysis Report
From: D C Jefferson
Date: Tue, 11 Aug 1998 9:38:29 PDT

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IGS Electronic Report    Tue Aug 11  9:38:29 PDT 1998      Message Number 5193
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Author: D C Jefferson
Subject: Wk 0968 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0968 (DAYS 207-213, DATES 1998 Jul 26 - Aug 01)
******************************************************************************

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 (137.78.60.30),
directory pub/jpligsac/0968.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09687.sum         This text file.
jpl09687.erp         Earth rotation parameters for GPS week 968.
jpl09687.snx         Ground station coordinates for GPS week 968, SINEX format.
jpl0968[0-6].sp3     GPS ephemerides for GPS week 968, sp3 format.
jpl0968[0-6].tro     Ground station troposphere estimates for GPS week 968.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 cm

According to the file nanu1998.mes obtained from the IGS CBIS, PRN10 was
unusable on days 212 and 213.  Data from this satellite did not meet our
initial orbit convergence criteria on either of these days and have been
excluded from both days' analyses accordingly.

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 USNO) used as reference clock day 207.
WARNING: NRC1 (not USNO) used as reference clock day 213.
WARNING: Data from YAR1 excluded day 207.
WARNING: Data from PIN2 excluded day 208.
WARNING: Data from CASA, LHAS, NOUM excluded day 209.
WARNING: Data from ANKR, CASA, LHAS, ROCH, TAEJ excluded day 210.
WARNING: Data from ANKR, CASA, NYA1, UPAD, YAKZ excluded day 211.
WARNING: Data from PRN10, AMCT, ANKR, CASA, NYAL excluded day 212.
WARNING: Data from PRN10, AMCT, CASA, LAMA excluded day 213.

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 968 (1998 Jul 26 - Aug 01)
version 2           
     MJD   XPole   Ypole  UT1R-UTC   LODR Xsg Ysg UTsg LOsg Nr Nf Nt   Xrt   Yrt
         10**-6" 10**-6"      .1us .1us/d 10**-6" .1us .1us/d          10**-6"/d
51020.50   -7709  470309  -1207557   5194  39  46  158  158 37  0 27  2799  1277
51021.50   -5173  471410  -1212488   4669  40  45  160  160 37  0 27  2318  1225
51022.50   -2885  472567  -1217049   4452  43  44  170  170 37  0 26  1976   854
51023.50    -535  473654  -1221690   4831  41  42  161  161 37  0 27  1798  1115
51024.50    1489  474946  -1226740   5268  41  45  170  170 37  0 27  1439   997
51025.50    3095  475950  -1232487   6226  42  46  176  176 37  0 26  1604   853
51026.50    5082  476849  -1238761   6322  42  43  176  176 37  0 26  2128  1119
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 968:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 968 (1998 Jul 26 - Aug 01)
      98  7 26   98  7 27   98  7 28   98  7 29   98  7 30   98  7 31   98  8  1
prn   3d rss (cm)
  1      11          8          7         13          9          8         11   
  2       6          4          3          6          6          5          5   
  3      30         28         14         16         18         14         24   
  4      11          7         12         12          7          6          9   
  5      10          9          4          6          9         10          8   
  6      14         21          9         11          7         12         17   
  7       6          5          5          6          7          7          5   
  8       4          6          7          8         12         11          5   
  9       5          7          5          9          6          8          7   
 10      12          8          5         12          7                         
 13       8          6          4          8         10          8          8   
 14      28         28          7          8          8         10          6   
 15       7          7          6          6         11          8          7   
 16      10          6          7          5          4          7          8   
 17      10         14         16         26         11         19         24   
 18       9          9          7          6          7         17         12   
 19       4          5          7          5          6         14          4   
 21       9          8          7         12          7         10          9   
 22      14         11          9          7         11         15         12   
 23       7         11         10          8         11         11          7   
 24       9          6          6         12         14         12         12   
 25      10          8          6          7          7          4          9   
 26       6          5          6          5         18         10         11   
 27       4          4                     8          4          8          6   
 29       7          7          7         10          8          9         10   
 30       8          9          6         11          6          7          9   
 31      10          7          7          5          7          7          9   
_______________________
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 968 (1998 Jul 26 - Aug 01)
 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*  7.0    355.        .354        61.5        4.63        2.77    
ASC1   6.0    124.       -.228        72.3        4.85        1.59    
AUCK   6.0    85.2       -.230        41.8        4.53        2.65    
BAHR   4.0    .528        495.        43.3        5.28        3.47    
BARB   3.7    101.       -.515        31.5        6.75        3.22    
CAS1   4.5    6.68        368.        35.6        5.20        1.51    
COCO   1.9    .106e+05   -73.3        41.5        5.00        2.49    
CRO1   3.0    157.        .103e-02    54.3        6.05        1.67    
DAV1*  6.9    180.       -.250          .         4.44        1.72    
DGAR   7.0    139.       -.262        69.7        5.00        1.90    
EISL   7.0    113.       -.255        51.9        5.31        2.89    
FAIR*  3.6    125.       -.121        45.9        4.60        2.35    
FORT*  7.0    .173       -.385        67.2        5.46        1.71    
GALA   7.0    156.       -.267        64.8        4.15        1.59    
GOL2*  7.0    111.       -.696        52.0        5.00        2.51    
GUAM*  6.0    110.       -.236        63.3        7.18        2.18    
HARK*  5.9    8.68        7.80          .         4.00        2.47    
HRAO   7.0    20.1       -.428        32.9        3.61        2.64    
IISC    .9    89.3       -.463        72.0        5.00        2.42    
IRKT*  4.8    .418       -.189        66.1        4.45        2.41    
KELY   4.4    .597e+05   -8.97        44.5        5.40        1.79    
KERG*  5.9    754.        .201e+04      .         5.19        2.44    
KIT3*  6.9    190.       -.246        73.2        4.86        2.60    
KOKB*  7.0    .280        .321        82.4        5.87        2.62    
KSTU   1.0    94.9       -.466        44.0        5.00        2.48    
KWJ1*  7.0    98.8       -.258        66.1        6.45        1.96    
LHAS*   .8    415.       -.529        66.0        5.00        2.02    
MAC1*  6.7    95.3       -.262        37.9        4.02        2.40    
MAD2*  7.0    168.        .812        93.3        6.44        2.45    
MAG0   3.8    .289e+06    483.        32.2        5.00        2.34    
MALI*  5.8    98.5       -.106e+04    77.3        7.70        1.90    
MAS1*   .9    2.71       -.901        52.0        4.00        2.22    
MCM4   2.0    93.8       -.215        34.5        4.52        1.98    
MDVO   1.0    .747        226.        64.0        6.00        1.71    
MKEA   5.0    .199       -.337        53.1        4.63        2.96    
NANO   3.0    15.9        141.        47.0        4.69        2.87    
NICO   2.0    170.       -.700e-02    56.0        5.52        2.52    
NLIB*  1.0    161.        .264e-03    56.0        5.00        3.03    
NRC1   1.1    .           .           59.0        4.00        3.01    
NTUS   4.8    .430e+04   -.213        80.0        5.81        1.37    
NYA1   4.7    303.        .788e-01    46.9        5.19        1.89    
ONSA*  5.6    .198       -2.85        46.3        4.00        2.17    
PERT*  1.0    3.39       -4.59        53.0        5.00        3.04    
PETR   1.0    .289e+06    537.        40.0        5.00        2.39    
PIE1*  1.0    .           .           45.0        5.00        2.81    
SANT*  6.3    698.       -.135        43.7        4.91        1.54    
TID2*  7.0    16.0       -.977e-01    39.0        5.31        2.48    
TSKB*  7.0    1.83       -2.76        49.9        5.19        3.10    
USNO   5.5    .           .           59.2        6.41        2.80    
USUD   5.0    .297        .814e-01    43.7        6.24        2.91    
WTZR*  7.0    1.67       -5.18        62.6        5.45        2.77    
WUHN   2.9    .934e+04   -30.8        49.4        5.35        2.46    
XIAN   2.0    105.       -.224        48.0        5.00        2.92    
YAKA   1.0    107.       -.479        59.0        5.00        2.32    
YAKZ   1.0    .290e+06    442.        49.0        6.00        2.21    
YAR1*  5.9    80.3       -.239        36.2        4.37        2.45    
YELL*  7.0    .186       -1.51        50.7        5.59        1.92    
PRN01  7.0    79.5        54.1        59.7        5.15        2.11    
PRN02  7.0    83.2       -514.        60.8        5.00        2.29    
PRN03  6.8    82.8        32.9        57.5        5.00        2.23    
PRN04  7.0    80.0        39.7        54.3        5.00        2.12    
PRN05  7.0    85.4        157.        54.6        5.00        2.43    
PRN06  6.6    80.8       -.754        58.8        5.00        1.91    
PRN07  6.7    82.6        785.        57.4        5.15        2.20    
PRN08  7.0    80.2        483.        56.1        5.16        2.16    
PRN09  7.0    81.6       -4.39        55.9        5.00        2.33    
PRN10  5.0    79.8        24.2        57.7        5.21        2.11    
PRN13  7.0    80.7       -213.        56.5        5.16        2.37    
PRN14  7.0    80.0        1.31        53.2        5.30        2.33    
PRN15  7.0    3.12        582.        60.9        5.16        2.45    
PRN16  7.0    79.4        72.2        56.2        5.00        2.16    
PRN17  7.0    81.2       -185.        58.0        5.00        2.09    
PRN18  7.0    81.2        15.4        54.8        5.45        2.38    
PRN19  7.0    80.3       -18.5        56.7        5.00        2.03    
PRN21  7.0    83.2        50.5        55.0        5.30        2.33    
PRN22  7.0    81.2        .507        53.7        5.15        2.34    
PRN23  7.0    81.0        1.91        58.3        5.15        2.24    
PRN24  7.0    81.4        800.        53.5        5.00        2.25    
PRN25  6.9    81.6       -6.43        56.1        5.00        2.20    
PRN26  7.0    81.9        152.        56.0        5.30        2.22    
PRN27  6.0    79.1        36.6        55.0        5.00        2.03    
PRN29  7.0    82.3        507.        56.0        5.00        2.36    
PRN30  7.0    82.0       -3.22        53.6        5.16        2.31    
PRN31  6.7    82.5        5.19        54.6        5.15        2.44    
_______________________
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
      98  7 26   98  7 27   98  7 28   98  7 29   98  7 30   98  7 31   98  8  1
prn   3d rss (cm)
  1     402        361        353        355        426        336        295   
  2     387        349        507        450        404        275        313   
  3     371        358        322        312        503        491        500   
  4     234        218        227        216        300        515        612   
  5     357        357        392        731        387        325        536   
  6     816        649        646        682        765        720        721   
  7     174        227        336        378        362        349        250   
  8     722        531        611        722        419        183        453   
  9     376        684        155        368        517        178        131   
 10     785        316        338        670        508                         
 13     258        209        159        440        520        290        334   
 14     777       1021        584        880       2087       2255       2145   
 15     267        247        197        296        507        554        318   
 16     334        570       1208        752        570        996       1467   
 17     194        256        233        428        421        294        216   
 18     362        354        318        353        343        227        289   
 19     140        168        172        140        178        297        269   
 21     223        210        237        271        253        322        505   
 22     652        362        367        375        524        366        255   
 23     309        304        258        365        313        434        306   
 24     356       1088        248        407        365        552       1203   
 25     618        480        233        282        488       1640       1016   
 26     573        472        190        305        309        179        185   
 27     268        408                  2311        452        434        426   
 29     224        198        239        247        252        268        264   
 30     199        202        196        356        192        344        280   
 31     215        317        555        387        306        318        231   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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