Subject: [IGSREPORT-5130] Wk 0965 JPL Analysis Report
From: D C Jefferson
Date: Tue, 21 Jul 1998 14:14:28 PDT

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IGS Electronic Report    Tue Jul 21 14:14:28 PDT 1998      Message Number 5130
******************************************************************************

Author: D C Jefferson
Subject: Wk 0965 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0965 (DAYS 331-192, DATES 1858 Nov 27 - Jul 11)
******************************************************************************

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/0965.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09657.sum         This text file.
jpl09657.erp         Earth rotation parameters for GPS week 965.
jpl09657.snx         Ground station coordinates for GPS week 965, SINEX format.
jpl0965[0-6].sp3     GPS ephemerides for GPS week 965, sp3 format.
jpl0965[0-6].tro     Ground station troposphere estimates for GPS week 965.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 9.0 cm

Data from PRN14 were mismodeled on days 187 and 188, and we have chosen to
exclude data from this satellite on these two days accordingly.

According to the file nanu1998.mes obtained from the IGS CBIS, PRN08 was
unusable on days 189-191.  A shift from about -50 ps/s to +34 ps/s was
detected in the drift of the clock for this satellite at approximately
21:00 on day 191.

Beginning this week, we use Version 2 of the ERP format proposed in IGS Mail
Message No. 1943 for our Earth orientation table below.

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: FAIR (not USNO) used as reference clock days 186 and 187.
WARNING: PIE1 (not USNO) used as reference clock day 188.
WARNING: NRC1 (not USNO) used as reference clock days 191 and 192.
WARNING: Data from HARK, KSTU excluded day 186.
WARNING: Data from PRN14, KSTU excluded day 187.
WARNING: Data from PRN14, KSTU, NYAL excluded day 188.
WARNING: Data from AUCK, KSTU excluded day 189.
WARNING: Data from KSTU excluded day 190.
WARNING: Data from HOLC, NOTO excluded day 191.
WARNING: Data from GALA excluded day 192.

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 965 (1858 Nov 27 - Jul 11)
version 2           
     MJD   XPole   Ypole  UT1R-UTC   LODR  Xsig  Ysig  UTsig  LODsig Nr Nf Nt   Xrt   Yrt  Xrtsig  Yrtsig   XYCor 
              10**-6"       .1 us  .1 us/d   10**-6"   .1 us .1 us/d            10**-6"/d 
50999.50  -56441  446212   -113258   4807    40    42    147     147 37  0 27  2779  1947     160     147   -.023   -.227    .027
51000.50  -53852  448120   -113700   4033    46    49    161     161 37  0 26  2496  1158     184     166   -.055   -.242    .021
51001.50  -51390  449387   -114095   3874    46    51    164     164 37  0 26  2367  1152     182     172    .017   -.192   -.005
51002.50  -48835  450509   -114450   3221    39    43    144     144 37  0 27  2593  1103     154     150   -.025   -.223   -.016
51003.50  -46247  451610   -114761   2998    42    42    149     149 37  0 27  2493   949     162     145    .006   -.175   -.003
51004.50  -43812  453189   -115081   3402    42    42    145     145 37  0 27  2384  1625     161     148   -.033   -.217    .009
51005.50  -41314  455145   -115441   3794    43    42    150     150 37  0 27  2524  1849     164     147    .060   -.196    .007
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 965:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 965 (1858 Nov 27 - Jul 11)
      98  7  5   98  7  6   98  7  7   98  7  8   98  7  9   98  7 10   98  7 11
prn   3d rss (cm)
  1      12          7          8          5          6          6          8   
  2      11          7          4          8          8          8         11   
  3      23         20         17         12         13          9         16   
  4      10          5         12         12         11         15          3   
  5       8         10         13          8          6          6          8   
  6      10         20         19          9          9         10         12   
  7      14          8         12         16         11         15          8   
  8       7          7          6          7          6          9          8   
  9       7          9          6          5          9          9          9   
 10       7         10          6          7          3          8          8   
 13       9          6          8          9          7          6         11   
 14       8                                4         18         16         19   
 15      10          8          9          9          8         10         13   
 16      11          6          9          5         12         10         16   
 17       9          8         10         14          9         12          8   
 18      11          7          5          8          8          8         10   
 19       9          7          6          6          7          6          9   
 21      20         16          9          5          8          8         14   
 22      17         14         15          8         12         10         14   
 23       8         12          7          9          8         12         13   
 24       8         11         12          9          9          7          9   
 25       9          8          9          9         10          6         11   
 26       5          9          6          5          7          8         10   
 27       5          5          4          7          6          7          7   
 29      13         12          7          6          7          6          8   
 30       6         11         23          8          6         14         13   
 31      17         16          8         12         11          9          7   
_______________________
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 965 (1858 Nov 27 - Jul 11)
 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    .103        2.04        66.9        4.46        2.77    
ASC1   7.0    .605e+04   -.178        77.1        5.90        1.28    
AUCK   1.0    79.5       -.732        41.0        4.00        2.58    
BAHR   6.0    .405        129.        44.4        5.04        3.54    
BARB    .9    98.3       -.788        30.0        7.00        3.58    
BOGT   1.0    149.       -.124e-01    65.0        5.00        1.82    
BRUS   1.0    .449        5.88        69.0        5.00        2.79    
COCO   6.6    120.       -.289e+05      .         6.88        1.22    
CRO1   3.9    .133e+04   -.130        59.3        5.76        1.62    
DAV1*  6.9    144.       -.141          .         4.59        1.58    
DGAR   5.0    152.       -.211        71.0        5.21        1.68    
EISL   7.0    119.       -.155        52.4        5.60        2.60    
FAIR*  7.0    .994e-01    .905        51.7        5.32        2.25    
FORT*  5.8    .173       -.341        69.6        5.35        1.54    
GALA   5.7    123.       -.165        72.1        4.69        1.69    
GODE   1.0    .187       -1.30        44.0        5.00        2.91    
GOL2*  7.0    .102       -.776        44.8        5.59        2.11    
GUAM*  4.0    112.       -.145        70.0        6.27        2.20    
HARK*  3.5    7.32        .414e-01    51.1        4.00        2.69    
HRAO   6.0    144.       -1.32        32.9        4.00        2.60    
IISC   3.0    95.5       -.243        74.0        5.00        2.14    
IRKT*  2.8    .200       -.160        71.6        5.00        2.54    
KELY    .8    93.1       -.767        47.0        6.00        1.41    
KERG*  6.8    .150e+04    .138e+04      .         5.45        2.53    
KIT3*  2.9    188.       -.523        73.0        4.38        1.84    
KOKB*  6.7    54.3        .708e-01    82.8        5.59        2.62    
KOUR*  1.0    5.70        1.18        79.0        6.00        1.71    
KWJ1*  7.0    95.0       -.148        71.4        7.42        1.83    
LHAS*  1.9    113.        .238        83.8        5.00        2.34    
MAC1*  6.9    92.4       -.149        38.6        4.31        2.35    
MAD2*  7.0    725.       -1.42        101.        6.59        2.34    
MAG0   2.8    .290e+06    483.        32.0        4.71        2.46    
MALI*  7.0    32.7       -.113e+04    81.7        7.15        1.90    
MAS1*  6.0    17.1       -.496e-01    56.9        4.00        2.11    
MATE*  1.0    .715e-01   -.239        49.0        4.00        2.55    
MCM4   7.0    94.0       -.150        33.6        4.75        1.64    
MDVO    .9    .137        238.        68.0        7.00        2.15    
MEDI   1.0    .250        .835        36.0        5.00        2.77    
MKEA   5.0    .109       -.352e-02    56.9        5.00        2.78    
NICO   1.0    167.       -.733        50.0        5.00        2.49    
NRC1   2.3    .           .           76.5        5.00        2.99    
NYA1   4.6    .142       -1.59        51.2        5.00        2.04    
OHIG*  6.9    131.       -.139        63.9        5.16        1.96    
ONSA*  7.0    .152       -2.88        44.9        4.00        2.16    
PETR    .7    .372e+04    .971        92.0        5.00        2.11    
PIE1*  1.0    .           .           46.0        6.00        2.55    
SANT*  6.6    .116e+04   -1.13        43.6        5.00        1.91    
THTI   5.9    189.       -.182        72.2        5.24        2.65    
TID2*  7.0    19.9       -.105        38.5        5.24        2.32    
TSKB*  7.0    1.29       -2.45        55.3        5.73        2.99    
USNO   2.2    .           .           57.7        6.00        2.88    
USUD   5.0    .173        4.36        45.0        5.43        2.92    
WTZR*  7.0    .270       -1.25        65.0        4.74        2.61    
WUHN   1.9    6.04       -176.        51.5        5.00        2.43    
XIAN   2.0    99.5       -.569e-02    47.0        5.00        2.33    
YAKA    .9    111.       -.227e-01    59.0        6.00        1.78    
YAKZ   1.0    .289e+06    467.        45.0        6.00        2.47    
YAR1*  7.0    80.9       -.149        38.0        4.46        2.37    
YELL*  7.0    .173       -.688        52.6        5.44        1.75    
PRN01  7.0    82.1        52.4        60.5        5.30        1.99    
PRN02  7.0    81.7       -507.        60.4        5.15        2.21    
PRN03  6.8    82.0        26.3        57.5        5.59        2.35    
PRN04  7.0    82.5        36.1        57.1        5.00        2.12    
PRN05  7.0    82.7        155.        58.8        5.00        2.39    
PRN06  6.6    79.2       -.458        65.3        5.00        1.81    
PRN07  6.6    81.3        783.        59.3        5.15        2.16    
PRN08  7.0    143.        448.        58.0        5.15        2.04    
PRN09  7.0    81.1       -1.37        58.6        5.15        2.13    
PRN10  6.6    82.0        23.7        60.8        5.31        1.94    
PRN13  7.0    80.0       -190.        57.4        5.00        2.46    
PRN14  4.8    80.4        .484        57.6        5.20        2.27    
PRN15  7.0    3.45        575.        59.8        5.00        2.42    
PRN16  6.7    80.1        69.5        57.9        5.00        2.25    
PRN17  7.0    78.7       -183.        62.1        5.00        1.73    
PRN18  7.0    80.0        15.1        59.6        5.00        2.34    
PRN19  7.0    82.2       -9.90        57.9        5.00        2.14    
PRN21  6.8    81.7        47.6        60.9        5.89        1.85    
PRN22  7.0    78.8        .821        55.6        5.16        2.26    
PRN23  6.7    79.0        1.26        61.5        6.15        1.84    
PRN24  7.0    80.8        819.        57.6        5.15        2.07    
PRN25  7.0    81.6       -6.44        54.3        5.00        2.38    
PRN26  7.0    82.3        150.        55.0        5.59        2.30    
PRN27  7.0    81.7        34.4        57.8        5.00        2.08    
PRN29  7.0    81.0        515.        57.5        5.00        2.22    
PRN30  6.6    81.1       -19.4        53.7        5.00        2.28    
PRN31  6.8    81.9        4.89        56.5        5.31        2.36    
_______________________
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  5   98  7  6   98  7  7   98  7  8   98  7  9   98  7 10   98  7 11
prn   3d rss (cm)
  1     342        303        283        318        353        458        422   
  2     629        544        278        327        212        372        414   
  3     509        509        310        211        442        290        370   
  4     310        377        721        325        294        319        327   
  5     294        320        242        304        614        432        481   
  6     823        796        956        871        868       1064        860   
  7     316        378        386        370        573        284        372   
  8     583        250        259        288        648        962        688   
  9     362        234        411        259        260        401        488   
 10     354        463        501        433        439        393        437   
 13     242        181        174        277        283        223        172   
 14    1997                              522        706       1295       1067   
 15     508        657        431        424        445        293        561   
 16     302       1262       1296        399        317        314        294   
 17     460        248        199        362        281        560        324   
 18     518        296        385        444        386        407        387   
 19     328        228        366        346        235        219        258   
 21     415        333        277        288        270        355        303   
 22     343        414        430        554        520        637        605   
 23     602        808        692        537        482        245        297   
 24     147        198        377        591        388       1639        256   
 25     743        515        497        422        428        734        591   
 26     710        250        180        167        568        518        534   
 27     188        338        197        420        246        275        241   
 29     207        217        323        393        321        203        195   
 30     326        484        256        356        266        397        274   
 31     272        421        507        314        341        527        547   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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