Subject: [IGSREPORT-5990] Wk 1004 JPL Analysis Report
From: D C Jefferson
Date: Wed, 21 Apr 1999 13:48:25 PDT

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IGS Electronic Report    Wed Apr 21 13:48:25 PDT 1999      Message Number 5990
******************************************************************************

Author: D C Jefferson
Subject: Wk 1004 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1004 (DAYS 94-100, DATES 1999 Apr 04 - Apr 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/1004.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10047.sum         This text file.
jpl10047.erp         Earth rotation parameters for GPS week 1004.
jpl10047.snx         Ground station coordinates for GPS week 1004, SINEX format.
jpl1004[0-6].sp3     GPS ephemerides for GPS week 1004, sp3 format.
jpl1004[0-6].tro     Ground station troposphere estimates for GPS week 1004.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

According to the file nanu1999.mes obtained from the IGS CBIS, PRN19 was
unusable on day 099.  Data from this satellite did not meet our initial
orbit convergence criteria on this day and were excluded 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: Data from BRAZ, CRO1, NOUM excluded day 094.
WARNING: Data from CRO1, KELY, LPGS excluded day 095.
WARNING: Data from AREQ, BARB, CRO1, HRAO, IRKT, KSTU, LPGS, NOUM, NYA1, PETP,           POL2, SELE, STJO, SUTH, TIXI, USUD, VESL, YAKZ excluded day 096.
WARNING: Data from AREQ, HRAO, IRKT, KSTU, LPGS, NOUM, PETP, POL2, SELE, SUTH,           TIXI, USUD, VESL, YAKZ excluded day 097.
WARNING: Data from AREQ, HRAO, IRKT, LPGS, NOUM, PETP, POL2, SELE, SUTH, TIXI,           URUM, USUD, YAKZ excluded day 098.
WARNING: Data from PRN19, DGAR, LPGS, URUM excluded day 099.
WARNING: Data from KELY, LPGS, TROM, URUM excluded day 100.

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 1004 (1999 Apr 04 - Apr 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
51272.50   19501  239606   5978436  14328  61  60  226  226 37  0 26 -1189    -5
51273.50   18196  239561   5964063  14417  57  58  223  223 37  0 26 -1091    53
51274.50   16921  239513   5949448  14813  65  66  231  231 37  0 26 -1548   572
51275.50   15012  240122   5934553  14977  73  76  236  236 37  0 26 -1746   271
51276.50   12998  240403   5919802  14525  71  72  232  232 36  0 26 -2072   197
51277.50   11750  240472   5905270  14539  62  62  221  221 37  0 25 -1386    13
51278.50   10900  240825   5890971  14060  60  62  212  212 37  0 26  -812   495
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1004:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1004 (1999 Apr 04 - Apr 10)
      99  4  4   99  4  5   99  4  6   99  4  7   99  4  8   99  4  9   99  4 10
prn   3d rss (cm)
  1       5          6         12         10          6          8          9   
  2      10         10         11         14          8         13         15   
  3       6          4          7         10          9          8         14   
  4      14         16         10          5          7          8          9   
  5      19         16         18          8         11         10         18   
  6       6         11         24         15          8         15         14   
  7      26         13          8         15         22         12         14   
  8      12         10         12         12         11         15         10   
  9      30         29         16         10          7         13         14   
 10      12         17         11          6          9          7          9   
 13      11         18          6         12          9          9          9   
 14      11         12          8         11         16         16         12   
 15      11         10          7          9          8         11         12   
 16      12          6          8          9         14         13         12   
 17      12         12          7         21         10         16         17   
 19       8         10          7          8         11                    13   
 21      12         13         11         10          9         16         10   
 22       9          5         10         16         10         10          9   
 23      19         14         17         14         13         23         14   
 24      13         18         12          5         10          8          8   
 25      10          4         23         14         12          7          9   
 26      14         13         29         20         18         16         16   
 27      24          6         12         13          8          8          8   
 29       8          7         14          9          4         10         12   
 30      11          7         11          9          8         10         12   
 31       6         15         15         11         12         15         17   
_______________________
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 1004 (1999 Apr 04 - Apr 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    .717e-01   -.164e-01    74.4        4.00        2.80    
ANKR   1.0    107.       -.238e-01    87.0        4.00        2.41    
ASC1   1.4    264.       -.111e-02      .         6.00        1.32    
AUCK   6.0    93.3       -.778e-03    51.9        4.53        2.71    
BAHR   6.0    .708        210.        38.1        4.17        2.07    
BARB   2.8    103.       -.660e-01    31.0        6.00        2.83    
BOGT   1.5    751.       -.557e-01    76.0        5.00        1.72    
CAS1   5.7    29.1        145.        37.3        5.51        1.09    
CRO1   2.0    239.        .376e-03    70.5        4.53        1.95    
DAV1*  5.7    137.        .145e-01      .         5.00        1.45    
EISL   7.0    147.       -.271e-01    72.0        5.02        2.77    
FAIR*  7.0    26.3        .157        93.9        4.46        2.10    
FORT*  6.6    1.69       -.447        86.1        5.90        1.47    
GOL2*  6.7    .181e+04   -9.24        84.3        4.19        2.33    
GOUG   3.7    .289e+06    501.        59.2        5.29        2.76    
GUAM*  2.6    133.       -.354e-01    78.3        6.00        2.05    
HARK*  6.7    93.2       -.111e-02    67.6        4.32        2.10    
HOB2*  2.0    .842e-01   -2.70        49.0        4.53        2.92    
HRAO   2.0    25.0        .101        63.5        4.00        2.89    
IISC   7.0    113.       -.452e-01    78.4        5.15        1.47    
IRKT*  4.0    .153       -48.7        61.8        4.77        2.48    
KIT3*  4.9    108.        .952e-01    72.9        4.44        .787    
KOKB*  5.5    .855       -.193        81.8        5.19        2.39    
KOSG*   .9    1.23        57.4        51.0        4.00        2.77    
KUNM   1.6    .288e+04   -.179        79.0        4.55        2.45    
KWJ1*  5.1    .638e+04   -.249        80.3        5.74        1.52    
MAC1*  6.9    88.1       -.354e-02    41.6        4.60        2.05    
MAD2*  6.9    .255e+04    1.27        86.3        6.16        2.42    
MAG0   2.9    .288e+06    476.        33.3        5.00        2.18    
MALI*  6.8    .431e+04    4.80        98.3        6.87        1.49    
MATE*  1.0    .160e+04    5.84        54.0        4.00        2.00    
MCM4   3.0    109.       -.885e-02    54.3        4.71        1.16    
MDVO   2.0    .263        263.        77.0        6.00        1.73    
METS    .9    .216       -1.42        93.0        4.00        2.44    
MKEA   5.8    .870        1.59        78.7        4.38        2.54    
NANO   5.0    17.6        287.        48.6        4.00        2.88    
NTUS   3.2    101.       -.663e-01      .         5.31        1.39    
NYA1   5.7    .609        .205        41.9        5.70        1.63    
ONSA*  6.9    32.9       -.462e-01    46.0        4.16        2.50    
PETP   2.0    136.       -.140e-03    68.7        5.00        2.71    
PIE1*  2.0    .213       -.178        59.6        4.00        2.49    
POL2   1.0    96.5       -.649e-02    98.0        4.00        2.30    
RAMO    .8    .276e+06    305.        33.0        5.00        1.71    
REYK   3.9    95.0       -.166e-02    67.2        6.53        1.92    
SANT*  4.5    .206e+04   -2.78        52.5        4.20        2.11    
SHAO*  1.0    117.       -.437e-01    72.0        3.00        2.23    
STJO   2.0    2.76       -.447        79.2        4.53        2.34    
THU1*  1.0    64.4       -.442e-02    49.0        5.00        1.74    
TID2*  7.0    .173       -1.60        54.4        5.06        2.42    
TIXI   2.0    101.       -.781e-01    36.1        4.00        2.06    
TOUL   1.0    .614        155.        67.0        5.00        2.96    
TSKB*  7.0    2.00       -.488        63.9        4.16        2.92    
URUM   1.0    115.       -.109e-01    66.0        5.00        .947    
USNO   7.3    .           .           71.2        5.45        2.89    
USUD   3.0    .227       -5.95        58.0        4.00        3.10    
VESL   2.9    .289e+06    489.        53.4        4.68        2.25    
WSRT   1.0    2.63       -1.19        51.0        4.00        2.42    
WTZR*  6.0    .843e-01    .363        70.4        4.69        2.85    
WUHN   3.9    7.69       -.105e+04    61.9        5.32        2.42    
XIAN   1.0    .166e+05    .527e+04    65.0        4.00        2.22    
YAR1*  7.0    94.2       -.120e-01    53.4        4.62        1.82    
YELL*  7.0    .201        .359        57.5        4.73        1.57    
ZECK   2.0    79.5       -.150e-04    58.5        4.00        2.34    
PRN01  7.0    78.7        79.9        59.6        5.00        2.38    
PRN02  6.9    79.3       -44.7        69.1        5.00        2.00    
PRN03  7.0    81.6        109.        64.1        5.00        2.16    
PRN04  6.6    82.9        555.        63.5        5.00        1.75    
PRN05  6.9    79.0        194.        66.2        4.48        1.79    
PRN06  7.0    81.7        .186        64.0        5.00        2.06    
PRN07  6.8    81.0        816.        66.6        5.00        1.92    
PRN08  6.7    81.8        788.        65.7        4.87        1.72    
PRN09  6.6    82.1       -37.5        65.5        5.34        1.69    
PRN10  6.9    82.5        34.6        69.0        5.00        1.90    
PRN13  7.0    80.0       -97.2        62.5        5.00        2.15    
PRN14  6.9    81.5        17.9        63.8        5.00        2.20    
PRN15  6.6    3.35        670.        68.7        4.88        1.82    
PRN16  7.0    80.1        110.        69.2        5.00        2.12    
PRN17  6.7    81.8       -208.        66.4        5.16        2.01    
PRN19  5.7    81.6       -128.        65.4        5.00        2.23    
PRN21  7.0    83.6        13.5        62.7        4.87        2.36    
PRN22  7.0    80.7        325.        66.1        4.87        2.24    
PRN23  6.8    81.0        11.7        63.9        5.00        2.29    
PRN24  6.2    80.2        549.        67.0        5.00        1.63    
PRN25  6.9    79.4        .652        58.5        5.00        1.98    
PRN26  7.0    81.9        416.        61.8        5.00        2.10    
PRN27  6.8    83.2        16.5        68.0        5.30        2.01    
PRN29  7.0    79.6        373.        57.9        5.00        2.34    
PRN30  7.0    81.5       -13.8        65.0        5.00        1.88    
PRN31  7.0    81.2        16.3        63.0        5.00        2.05    
_______________________
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
      99  4  4   99  4  5   99  4  6   99  4  7   99  4  8   99  4  9   99  4 10
prn   3d rss (cm)
  1     639        389        406        361        317        253        330   
  2     356        241        210        158        380        211        387   
  3     194        201        270        177        219        264        447   
  4     345        275        248        248        300        287        315   
  5     282        215        176        295        305        273        300   
  6     322        379        514        524        403        506        482   
  7     528        202        242        426        304        233        226   
  8     162        278        371        322        326        242        281   
  9     445        484        346        206        608        474        220   
 10     228        248        255        263        269        430        317   
 13     266        291        438        611        309        222        378   
 14     838       1318        592        470        397        460        991   
 15     226        358        359        366        363        262        354   
 16     607        405        713        461        577        454        589   
 17     256        543        193        278        340        513        393   
 19     829        681        584        209        364                  1222   
 21     241        257        253        547        473        220        203   
 22     335        250        295        277        280        378        503   
 23     218        188        163        167        538        320        382   
 24     307        220        337        235        273        343        306   
 25     380        291        364        358        364        377        280   
 26     157        164        183        154        251        252        183   
 27     426        523        631        891        997        573        579   
 29     388        248        353        440        294        290        262   
 30     265        190        353        288        282        214        189   
 31     611        140        195        190        228        267        493   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo ankr asc1 auck bahr barb bogt cas1 cro1 dav1 eisl fair fort gol2 goug guam hark hob2 hrao iisc irkt kit3 kokb kosg kunm kwj1 mac1 mad2 mag0 mali mate mcm4 mdvo mets mkea nano ntus nya1 onsa petp pie1 pol2 ramo reyk sant shao stjo thu1 tid2 tixi toul tskb urum usno usud vesl wsrt wtzr wuhn xian yar1 yell zeck

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