Subject: [IGSREPORT-5417] Wk 0978 JPL Analysis Report
From: D C Jefferson
Date: Mon, 19 Oct 1998 14:47:39 PDT

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IGS Electronic Report    Mon Oct 19 14:47:39 PDT 1998      Message Number 5417
******************************************************************************

Author: D C Jefferson
Subject: Wk 0978 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0978 (DAYS 277-283, DATES 1998 Oct 04 - Oct 10)
******************************************************************************

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/0978.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09787.sum         This text file.
jpl09787.erp         Earth rotation parameters for GPS week 978.
jpl09787.snx         Ground station coordinates for GPS week 978, SINEX format.
jpl0978[0-6].sp3     GPS ephemerides for GPS week 978, sp3 format.
jpl0978[0-6].tro     Ground station troposphere estimates for GPS week 978.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 12.0 cm

According to the file nanu1998.mes obtained from the IGS CBIS, PRN22 was
unusable on days 280-287.  A shift from about -0.3 ps/s to +141 ps/s was
detected in the drift of the clock for this satellite at approximately
16:25 UT on day 280.

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: Data from COCO, HOB2, LPGS, NOUM excluded day 277.
WARNING: Data from PRN19, COCO, HOB2, IAVH, LPGS, PETR, WILL excluded day 278.
WARNING: Data from COCO, HOB2, LPGS, NOUM, PETR, SIO3, WILL excluded day 279.
WARNING: Data from PRN15, COCO, HOB2, IAVH, KERG, LPGS, NYAL, PETR, SIO3, WILL           excluded day 280.
WARNING: Data from COCO, HOB2, KERG, LPGS, NOUM, NYAL excluded day 281.
WARNING: Data from PRN17, FORT, HOB2, IAVH, LPGS, NYAL excluded day 282.
WARNING: Data from DHLG, IAVH, XIAN excluded day 283.

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 978 (1998 Oct 04 - Oct 10)
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
51090.50  130806  440442  -1768811  13062  51  56  221  221 37  0 27  1013 -1521
51091.50  132474  438708  -1782003  13322  52  57  225  225 37  0 26  1317 -1806
51092.50  133852  437166  -1795200  13072  52  61  226  226 37  0 27   921 -2391
51093.50  135208  434801  -1808400  13329  60  64  234  234 37  0 26  1227 -1969
51094.50  136513  432948  -1821910  13691  59  64  237  237 37  0 27  1043 -2374
51095.50  138264  431052  -1836223  14934  62  72  241  241 37  0 26  1765 -1769
51096.50  139860  429987  -1851103  14827  54  56  224  224 37  0 27  1526 -1737
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 978:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 978 (1998 Oct 04 - Oct 10)
      98 10  4   98 10  5   98 10  6   98 10  7   98 10  8   98 10  9   98 10 10
prn   3d rss (cm)
  1       7          9         18         16         20         13          9   
  2      14         16         14         17         12         15         10   
  3      14         12         25         12         25         22         12   
  4      10          8         12         10         11         14         26   
  5      10          9         24         12         12         15         14   
  6       6         16         15         10         10          9         14   
  7       5          9         10         10          8         16         13   
  8      12         16         24         15         15         14          8   
  9       8         13         18         15         12         18         18   
 10      16         11         10         20         11         17          7   
 13       9         12          8          9          8         11          8   
 14      15         14         11         20         24         21         15   
 15      12         14         17                    31         16         11   
 16      13         26         15         18          6         15          8   
 17      13         10          6         21         22                    18   
 18      38         21         12         11         10          8         10   
 19       7                    16         14         11          8         11   
 21      10         13          8          9         12          8         17   
 22      26         16         29         24          9         11         11   
 23      22         28         16         18         20         10         15   
 24      12         10          8         11          8         12         16   
 25      11         10         12         18         18         24         12   
 26      10         12         13         20         17         14         10   
 27       9         14         14         23         13         13          7   
 29       7          9         15         20         24         19          5   
 30       9          4         11         11         10         14         11   
 31      26         23          7         10         11         18         10   
_______________________
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 978 (1998 Oct 04 - Oct 10)
 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    .819e-01    .154        68.1        4.48        2.69    
AREQ*  4.7    .152e+04    .150        68.5        4.00        1.75    
ASC1   3.5    .248e+04    .412e-01      .         5.21        1.36    
AUCK   6.0    90.2        .822e-01    50.1        5.18        2.62    
BAHR   4.0    2.03        773.        67.0        5.27        2.58    
BOGT    .7    297.        .423e-02    73.0        5.00        1.46    
CAS1   2.9    21.1        .267e+04    37.3        6.00        1.28    
CASA   3.9    17.5        42.2        52.2        6.00        2.58    
CRO1   6.6    .305e+04   -.431e-01    62.1        5.74        1.68    
DAV1*  6.9    148.        .976e-01      .         4.55        1.42    
DGAR    .8    341.        .127        75.0        5.00        1.58    
EISL   6.8    173.        .758e-01    67.2        4.88        2.63    
FAIR*  6.8    15.5        .142        63.6        4.43        2.24    
FORT*  1.8    .515       -.335        90.1        5.50        1.63    
GALA   2.2    908.        .203        66.2        4.39        1.40    
GOL2*  7.0    238.       -.784        67.2        4.15        2.19    
GOUG   2.8    .289e+06    515.        65.0        5.37        2.40    
GUAM*  6.9    132.        .287e-01    83.8        7.04        1.80    
HARK*  5.9    13.1        4.38          .         4.37        1.76    
HOFN   1.0    .288e+06    494.        50.0        5.00        2.09    
HRAO   5.0    .181        1.46        65.2        4.43        2.24    
IISC   4.9    110.        .553e-01    76.7        5.41        1.73    
IRKT*  4.9    103.        .145        61.7        5.00        2.50    
KERG*  4.1    .137e+04    40.1          .         5.23        2.18    
KIT3*  3.8    117.        .870e-01    73.5        4.30        2.40    
KOKB*  6.2    14.9       -.321e-01    91.3        5.98        2.46    
KWJ1*  6.5    .176e+04   -.530e-03    84.9        6.15        1.77    
LHAS*  2.5    361.        .613e-01    74.0        4.73        2.18    
MAC1*  6.9    95.6        .871e-01    40.7        4.29        2.00    
MAD2*  6.6    228.        1.39        71.9        6.05        2.11    
MAG0   1.9    .288e+06    486.        30.6        4.00        2.28    
MALI*  6.8    .165e+04    10.9        89.4        6.60        1.71    
MATE*  3.9    339.       -.104        54.1        5.05        2.61    
MCM4   4.0    103.        .842e-01    50.2        5.50        1.04    
MDVO   2.8    .430        226.        70.0        6.00        1.68    
METS    .9    .450        .161        54.0        4.00        2.27    
MKEA   4.9    331.       -1.68        68.0        4.46        2.73    
NOTO   2.0    .950e-01    996.        82.0        6.51        2.62    
NTUS   4.5    168.        .444e-01    91.5        5.40        1.33    
NYA1   2.8    .103       -.152e-01    43.9        5.70        1.35    
OHIG*  4.6    .812e+06   -9.38        53.1        4.24        1.03    
ONSA*  3.7    95.6       -.732        43.1        4.00        2.10    
SANT*  1.8    839.       -.196        45.1        4.00        1.12    
SELE   1.0    104.        .968e-01    46.0        4.00        2.81    
STJO   1.0    103.       -506.        69.0        4.00        3.01    
SUTH   2.0    151.        .912e-01    64.5        4.00        2.10    
THU1*  1.0    98.0        .886e-01    58.0        6.00        1.23    
TID2*  7.0    .157        .994        46.7        5.18        2.35    
TSKB*  7.0    418.       -1.28        54.2        5.02        3.18    
USNO   7.3    .           .           69.5        5.15        2.50    
USUD   7.0    .606        1.55        48.2        4.76        2.78    
VESL   4.0    .289e+06    510.        57.8        4.25        2.10    
WTZR*  6.8    .295       -3.72        67.0        4.31        2.62    
WUHN   2.0    10.8       -443.        58.0        5.51        2.36    
YAKZ   1.8    .290e+06    437.        45.5        5.00        2.47    
YAR1*  6.9    84.7        .834e-01    45.2        4.30        2.37    
YELL*  7.0    .153        .684e-01    60.7        4.85        1.63    
ZECK    .9    80.7        .801e-01    57.0        4.00        2.79    
PRN01  6.7    81.6        61.2        62.3        5.15        1.98    
PRN02  7.0    82.9       -540.        67.4        5.00        2.16    
PRN03  7.0    81.6        54.9        63.0        5.00        2.00    
PRN04  6.8    81.2        78.9        64.5        5.16        1.96    
PRN05  7.0    82.5        167.        63.5        5.00        2.31    
PRN06  7.0    81.2       -.591        61.4        5.16        1.80    
PRN07  7.0    80.3        794.        60.5        5.00        2.15    
PRN08  6.6    81.8        228.        63.6        5.16        1.76    
PRN09  6.6    81.2       -13.4        61.3        5.15        1.79    
PRN10  7.0    82.0        27.3        64.7        5.00        1.89    
PRN13  7.0    82.2       -297.        59.9        5.00        2.14    
PRN14  6.9    81.4        5.24        63.7        4.87        2.05    
PRN15  5.6    3.25        607.        68.6        5.00        1.94    
PRN16  7.0    79.3        82.7        69.6        5.00        2.15    
PRN17  5.7    82.5       -191.        64.6        5.00        2.01    
PRN18  7.0    82.1        17.4        63.9        5.16        2.07    
PRN19  5.8    79.8       -53.9        64.7        5.00        1.92    
PRN21  7.0    81.9        61.1        64.8        5.00        1.92    
PRN22  6.8    311.        8.20        66.9        5.00        2.13    
PRN23  7.0    80.7        5.08        62.6        5.15        2.11    
PRN24  6.8    80.8        694.        67.9        5.16        2.17    
PRN25  6.6    81.8       -5.99        63.4        5.15        1.88    
PRN26  7.0    80.3        499.        59.6        5.00        1.96    
PRN27  6.8    81.2        43.4        63.4        5.00        2.01    
PRN29  6.9    81.5        386.        59.3        5.00        1.93    
PRN30  7.0    78.8       -11.9        58.9        5.00        2.14    
PRN31  7.0    82.2        7.80        62.5        5.00        2.04    
_______________________
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 10  4   98 10  5   98 10  6   98 10  7   98 10  8   98 10  9   98 10 10
prn   3d rss (cm)
  1     212        186        271        230        299        487        324   
  2     517        316        268        329        368        450        398   
  3     262        249        215        266        436        201        509   
  4     206        256        369        355        350        558        474   
  5     310        316        285        339        356        360        364   
  6     522        381        346        448        401        461        494   
  7     338        328        297        234        340        623        541   
  8     258        462        837        532        731        294        839   
  9     767        463        451        697        314        264        340   
 10     383        316        382        373        477        240        238   
 13     225        186        260        342        346        272        259   
 14     880       1016        479        442       1891        441        514   
 15     194        435        539                   940        447        555   
 16     263        270        326        264        444        612        477   
 17     332        200        241        375        413                   536   
 18     386        756        514        436        415        435        442   
 19     299                  1475        373        249        320        241   
 21     297        396        324        253        519        208        346   
 22     357        552        396        346        620        733        525   
 23     590        475        419        598        493        268        209   
 24    1204        627        668       1548        745       1072       1157   
 25     512        347        330        351        304        509        306   
 26     309        304        633        481        446        223        177   
 27     644        390        280        357        398        351        501   
 29     376        245        225        470        303        284        276   
 30     191        219        273        168        183        197        288   
 31     440        208        217        177        157        176        328   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo areq asc1 auck bahr bogt cas1 casa cro1 dav1 dgar eisl fair fort gala gol2 goug guam hark hofn hrao iisc irkt kerg kit3 kokb kwj1 lhas mac1 mad2 mag0 mali mate mcm4 mdvo mets mkea noto ntus nya1 ohig onsa sant sele stjo suth thu1 tid2 tskb usno usud vesl wtzr wuhn yakz yar1 yell zeck

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