Subject: [IGSREPORT-5173] Wk 0967 JPL Analysis Report
From: D C Jefferson
Date: Tue, 4 Aug 1998 17:47:15 PDT

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IGS Electronic Report    Tue Aug  4 17:47:15 PDT 1998      Message Number 5173
******************************************************************************

Author: D C Jefferson
Subject: Wk 0967 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0967 (DAYS 200-206, DATES 1998 Jul 19 - Jul 25)
******************************************************************************

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/0967.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09677.sum         This text file.
jpl09677.erp         Earth rotation parameters for GPS week 967.
jpl09677.snx         Ground station coordinates for GPS week 967, SINEX format.
jpl0967[0-6].sp3     GPS ephemerides for GPS week 967, sp3 format.
jpl0967[0-6].tro     Ground station troposphere estimates for GPS week 967.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 9.5 cm

According to the file nanu1998.mes obtained from the IGS CBIS, PRN25 was
unusable on day 203.  Data from this satellite did not meet our initial orbit
convergence criteria on this or the following day (204), and have been excluded
from both days' analyses.  Also, data from PRN14 were mismodeled on day 203
and have been excluded from this day's processing as well.

Please note that solutions for day 207 (98jul26; week 968, day 0) are not
currently available.  Orbit repeatability statistics for day 206 shown below
are representative of comparisons with the previous day (205) only.

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: NRC1 (not USNO) used as reference clock days 201-203.
WARNING: FORT (not USNO) used as reference clock day 204.
WARNING: Data from KSTU, TROM excluded day 200.
WARNING: Data from KSTU excluded day 201.
WARNING: Data from PRN14, PRN25, DHLG, NOUM, NYA1 excluded day 203.
WARNING: Data from PRN25 excluded day 204.
WARNING: Data from NYA1, TROM excluded day 205.

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 967 (1998 Jul 19 - Jul 25)
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
51013.50  -23417  464524  -1181868   3197  38  40  148  148 37  0 27  2085   582
51014.50  -21310  465294  -1184966   2999  41  43  156  156 37  0 27  2260   475
51015.50  -19451  466264  -1188088   3244  40  45  157  157 37  0 27  1845  1147
51016.50  -17521  467209  -1191243   3066  48  51  178  178 37  0 25  2160  1271
51017.50  -15108  468062  -1194502   3452  44  48  166  166 37  0 26  2046   857
51018.50  -12850  468847  -1198200   3945  42  45  159  159 37  0 27  1948  1050
51019.50  -10424  469440  -1202565   4784  42  43  159  159 37  0 27  2167   802
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 967:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 967 (1998 Jul 19 - Jul 25)
      98  7 19   98  7 20   98  7 21   98  7 22   98  7 23   98  7 24   98  7 25
prn   3d rss (cm)
  1       5          7          9          9         14         11         10   
  2       6          7         12         13          8          7          3   
  3      24         17         15          8         21         19         27   
  4      12         13         22         12         10          9         13   
  5       4          7         16         15         18         10          7   
  6      10         14         21         23         18         10         12   
  7      13          8          8         11          6         10         22   
  8       9         12         16         13          9          8          6   
  9       4          6          9          7          6          7          3   
 10       6          9         14          9         11          9         11   
 13       7         12         15         14          6         11         12   
 14       7          9         10                    11         18         23   
 15       4          6          6         12          8          9          8   
 16       6         10         14         19         12          9         20   
 17      12          9         13         18         16         19         27   
 18       8          6         11         10          7          4          8   
 19       5         10         14          4          8          7          6   
 21       7          5          8          6         14         14         12   
 22      13         12         12          8         12          8         14   
 23      10         11          8          9          9         13         10   
 24       8          9         12         10          9         10          7   
 25       8          7         10                                8          9   
 26       8         12         12         19         13         11         12   
 27       4          7          7          5          6          6          4   
 29       4          7          9         11          9          8          6   
 30       9          8         11          7         24         23          6   
 31      10          7          8         10          7         10         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 967 (1998 Jul 19 - Jul 25)
 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    .924        2.45        61.7        5.02        2.81    
ASC1   7.0    309.       -.185        69.6        5.03        1.54    
AUCK   4.0    83.6       -.197        43.3        5.00        2.69    
BAHR   3.8    .786        129.        42.7        5.75        3.36    
BARB    .9    103.       -.519        33.0        7.00        3.60    
BOGT   3.0    120.       -.253        64.4        6.36        1.71    
CAS1   5.8    13.3        146.        36.8        5.34        1.40    
CASA   3.0    .196e+05    58.1        45.0        6.00        2.61    
CHAT   1.0    136.        .852e-02    85.0        5.00        2.46    
CICE   2.0    129.       -.216        41.0        4.53        2.56    
COCO    .7    .147e+05    3.69        42.0        5.00        2.46    
CRO1   2.0    180.        .118e-01    50.4        5.54        1.93    
DAV1*  6.9    135.       -.170          .         4.87        1.34    
DGAR   6.9    322.       -.180        67.0        4.87        1.86    
EISL   7.0    119.       -.186        52.2        5.31        2.86    
FAIR*  1.5    90.8       -.532        50.0        4.69        2.24    
FORT*  5.8    57.0       -.329        65.5        5.36        1.71    
GALA   3.9    108.       -.122        70.1        4.25        1.65    
GOL2*   .9    .165       -.731        55.0        5.00        2.49    
GRAZ*  1.0    .589       -.573        70.0        6.00        2.63    
GUAM*  7.0    106.       -.188        64.6        7.31        2.24    
HARK*  4.9    5.96        4.04          .         4.00        2.36    
HRAO   3.0    36.0       -.387        35.4        4.00        2.65    
IISC   5.0    .266e+07    .285e+04    73.8        5.43        2.10    
IRKT*  3.8    25.9        .109e-01    67.8        5.27        2.37    
KELY   3.4    .734e+05    12.2        42.1        5.49        1.42    
KERG*  4.9    654.        .180e+04      .         5.00        2.51    
KIT3*  3.8    176.       -.201        73.0        5.00        2.13    
KOKB*  7.0    4.73        .343e-01    78.0        5.31        2.67    
KOUR*  1.9    13.2        .795        70.5        6.00        1.97    
KSTU    .8    86.2       -.471        37.0        5.00        2.62    
KWJ1*  6.0    85.6       -.133        67.9        7.17        1.87    
LHAS*  3.9    110.        .282e-01    74.3        5.25        2.31    
MAC1*  5.6    92.7       -.211        37.3        4.37        2.35    
MAD2*  7.0    .178        1.17        92.4        6.74        2.56    
MAG0   1.7    .289e+06    491.        33.0        5.49        2.60    
MALI*  7.0    45.5       -.145e+04    80.0        7.30        1.92    
MAS1*  1.0    4.03        .956e-01    52.0        4.00        2.49    
MATE*  1.8    .188       -.747        45.0        4.54        3.10    
MCM4   2.0    90.6       -.169        35.5        5.00        1.60    
METS   1.0    .271       -.729        72.0        4.00        2.59    
MKEA   6.0    .143       -.194        47.2        5.00        2.79    
NANO   1.9    10.9        126.        44.5        5.00        2.96    
NRC1   3.3    .           .           60.3        5.33        3.03    
NTUS   5.5    .358e+04    .101e-01    95.3        6.02        1.36    
NYA1   2.8    .321       -.300        45.4        5.66        1.73    
OHIG*  3.6    .116e+04   -.520e-01    56.6        4.81        2.09    
ONSA*  3.8    .237       -2.80        39.7        4.78        2.13    
PETR   3.0    .288e+06    486.        40.1        6.43        2.63    
PIE1*  1.0    .349       -.893        45.0        6.00        2.73    
RCM6   1.0    197.        .867e-01    76.0        5.00        2.90    
SANT*  6.9    417.        1.39        41.6        5.00        1.85    
STJO   1.0    2.06        .302        61.0        6.00        2.63    
SUTH   4.0    99.4       -.112        33.6        4.00        2.63    
THTI   2.9    194.       -.145        70.6        4.67        2.70    
THU1*  1.0    72.2       -.456        46.0        6.00        2.15    
TID2*  6.8    .190       -.720e-01    39.4        5.44        2.35    
TSKB*  5.8    1.38       -2.64        49.3        5.87        3.07    
USNO   3.4    .           .           60.0        6.35        2.96    
USUD   6.0    6.25        3.40        42.9        5.02        2.97    
WTZR*  6.3    665.       -2.41        65.6        5.56        2.45    
WUHN   1.0    .316e+05   -135.        54.0        6.00        2.13    
XIAN   3.0    98.8       -.461        47.4        6.05        3.02    
YAKA   1.0    95.1       -.482        59.0        5.00        2.59    
YAKZ    .9    .289e+06    427.        46.0        5.00        2.60    
YAR1*  7.0    93.0       -.175        37.3        4.50        2.36    
YELL*  7.0    .222       -1.17        51.2        5.44        1.69    
PRN01  7.0    80.3        53.6        59.7        5.16        2.09    
PRN02  7.0    79.8       -512.        62.8        5.15        2.29    
PRN03  6.8    82.0        30.7        58.7        5.30        2.28    
PRN04  7.0    82.0        38.5        56.8        5.45        2.06    
PRN05  7.0    83.2        157.        59.0        5.45        2.27    
PRN06  6.6    83.1       -.612        64.0        5.59        1.69    
PRN07  6.6    83.8        785.        60.6        5.73        2.12    
PRN08  7.0    81.0        466.        57.4        5.59        2.18    
PRN09  7.0    81.5       -3.32        57.6        5.02        2.13    
PRN10  7.0    81.1        24.1        59.4        5.72        2.06    
PRN13  7.0    79.6       -205.        59.9        5.63        2.25    
PRN14  6.0    82.1        1.01        55.8        5.18        2.27    
PRN15  7.0    3.08        580.        60.3        5.16        2.26    
PRN16  7.0    79.8        71.4        58.1        5.60        2.13    
PRN17  7.0    80.5       -184.        61.0        5.31        1.96    
PRN18  7.0    79.6        15.4        58.4        5.60        2.21    
PRN19  7.0    81.3       -15.4        58.1        5.15        2.13    
PRN21  7.0    82.0        49.6        57.7        5.45        2.32    
PRN22  7.0    80.3        .650        55.9        5.30        2.17    
PRN23  7.0    81.1        1.73        60.4        5.30        2.27    
PRN24  7.0    81.1        807.        55.4        5.30        2.24    
PRN25  5.0    81.6       -6.44        57.2        5.62        2.21    
PRN26  7.0    80.3        153.        57.6        5.59        2.19    
PRN27  7.0    80.4        36.0        56.5        5.15        2.13    
PRN29  7.0    79.8        512.        56.6        5.15        2.29    
PRN30  7.0    82.2       -2.17        55.4        5.31        2.29    
PRN31  6.8    83.4        5.14        56.6        5.30        2.30    
_______________________
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 19   98  7 20   98  7 21   98  7 22   98  7 23   98  7 24   98  7 25
prn   3d rss (cm)
  1     328        340        278        250        352        279        312   
  2     410        351        316        389        359        491        680   
  3     467        423        421        335        261        282        296   
  4     297        297        277        224        250        244        216   
  5     442        312        294        354        335        329        337   
  6     821       1145        515        946        932        650        663   
  7     411        406        453        287        234        215        202   
  8     234        328        327        472        328        118        438   
  9     430        269        345        172        162        285        231   
 10     701        268        303        499        527        268        400   
 13     270        305        212        213        184        238        260   
 14    1824        664       1393                  1794        671       1281   
 15     354        238        377        381        346        292        222   
 16     898        263       1004       1669        515       1308        914   
 17     166        146        198        302        356        245        173   
 18     470        425        359        345        328        338        270   
 19     142        213        206        208        285        382        194   
 21     225        274        254        280        300        276        233   
 22     314        466        616        444        371        454        497   
 23     351        394        494        486        643        486        235   
 24     219        451        399       1792        251        482        197   
 25     401        355        322                              802        471   
 26     607        261        459        317        311        237        354   
 27     274        348        369        355        231        301        509   
 29     228        248        171        153        219        229        217   
 30     238        248        276        265        331        768        275   
 31     343        302        382        464        571        254        278   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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