Subject: [IGSREPORT-6379] Wk 1022 JPL Analysis Report
From: D C Jefferson
Date: Tue, 24 Aug 1999 9:18:15 PDT

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IGS Electronic Report    Tue Aug 24  9:18:15 PDT 1999      Message Number 6379
******************************************************************************

Author: D C Jefferson
Subject: Wk 1022 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1022 (DAYS 220-226, DATES 1999 Aug 08 - Aug 14)
******************************************************************************

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/1022.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10227.sum         This text file.
jpl10227.erp         Earth rotation parameters for GPS week 1022.
jpl10227.snx         Ground station coordinates for GPS week 1022, SINEX format.
jpl1022[0-6].sp3     GPS ephemerides for GPS week 1022, sp3 format.
jpl1022[0-6].tro     Ground station troposphere estimates for GPS week 1022.
jpl1022[0-6].clk     GPS and ground station clocks for GPS week 1022, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 11.0 cm

We continue to exclude data from IGS stations that do not employ Dorne-Margolin
style antennae, namely: BAKO BZRG GOPE HOFN INEG JOZE MATH MDVO PENC UZHL WTZT.

According to the file nanu1999.mes obtained from the IGS CBIS, PRN31 was
unusable day 222.  Data from this satellite did not meet our initial orbit
convergence criteria on this day, and was mismodeled the following day (223) as
well.  This satellite has been excluded from both days' analyses accordingly.

Data from PRN15 were mismodeled days 221 and 222 and have been excludeded
from these days' analyses accordingly.

A large clock discontinuity (reset) of about 425 microseconds was detected
for PRN22 at approximately 14:35 on day 221.

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 CASA, HOB2, HOLC excluded day 220.
WARNING: Data from PRN15, CASA, FAIR, HOB2 excluded day 221.
WARNING: Data from PRN15, PRN31, CASA, HOB2, NYAL, TROM excluded day 222.
WARNING: Data from PRN31, CASA excluded day 223.
WARNING: Data from CASA excluded day 224.
WARNING: Data from CASA excluded day 225.
WARNING: Data from CASA, FORT, HARK excluded day 226.

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 1022 (1999 Aug 08 - Aug 14)
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
51398.50  -13842  346346   4887493   3613  39  43  122  122 39  0 27   328  1106
51399.50  -13737  346870   4883964   3445  51  53  154  154 38  0 26   -57   713
51400.50  -13303  347379   4880474   3536  47  47  138  138 38  0 25   -42   753
51401.50  -12975  347782   4876998   3415  45  48  130  130 39  0 26   847   610
51402.50  -12454  348203   4873386   3810  45  49  128  128 38  0 27    15   468
51403.50  -11996  348559   4869624   3713  44  46  134  134 38  0 27   285   603
51404.50  -11475  349226   4865542   4450  43  42  123  123 39  0 27  -357  1094
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1022:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1022 (1999 Aug 08 - Aug 14)
      99  8  8   99  8  9   99  8 10   99  8 11   99  8 12   99  8 13   99  8 14
prn   3d rss (cm)
  1       7          8         11          9         14         10         16   
  2       5          8         10         10          8          4          9   
  3      24         19         19         18         25         15         23   
  4       4         13         11          8          5          7          7   
  5      13         11         11         12          7          6          6   
  6       8         11          9          9          8          8         10   
  7       5          9         11          5         11          8          5   
  8       5          7          7          6         11          8         13   
  9      13         13          9          9          5         10         12   
 10      12         13         23         11         15         11         10   
 13      15         15         19         20          8         13          8   
 14      16         10         18         16         14         20         15   
 15       9                                5         11          9         27   
 16      10         15         11         12         13          8          7   
 17       9         28         25         20         18         13          9   
 18      11          9         15         13         13         10         11   
 19      10         14         12         14         11          4         11   
 21      20         20         13         15         13          6          7   
 22      13         11         14         13         13         10         18   
 23      15         16         11         16         16         12         24   
 24      10         14         20         21         29         17         22   
 25       5          6         11          8         15          9         17   
 26      11         19         22          9         14         14          7   
 27       8          9         12          7         10          4          4   
 29      41          7         13          8         16         13         10   
 30      10         10          9         11         12         12          7   
 31      10          7                               13         14         16   
_______________________
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 1022 (1999 Aug 08 - Aug 14)
 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    .743e-01   -.968        77.9        4.78        2.72    
ASC1   7.0    134.       -.945e-02    74.6        5.44        1.73    
AUCK*  4.6    88.5       -.903e-02    46.1        4.80        2.49    
BAHR   7.0    .922        910.        39.4        4.87        3.13    
BARB   1.9    97.6       -.750e-01    43.0        6.97        3.91    
BOGT   2.7    .567e+05    1.28        98.6        5.70        1.39    
COCO   1.9    115.       -.873e-02    74.2        5.51        2.22    
CRO1   2.0    .264e+04    .378e-01    57.6        5.52        1.77    
DAV1*  6.6    134.       -.254e-02      .         5.00        1.69    
DGAR   5.2    113.       -.321e-01    72.2        6.04        1.62    
EISL   6.8    160.       -.878e-02    60.6        5.45        2.57    
FAIR*  5.7    267.       -.212        33.6        6.00        2.06    
FORT*  6.0    .250        .111        75.3        4.85        1.81    
GOL2*  6.9    .118        2.11        66.8        4.72        2.36    
GOUG   3.0    .289e+06    508.        57.4        5.34        3.04    
GUAM*  6.8    135.       -.316e-01    79.9        6.85        2.04    
HARK*  1.6    .288e+06    452.        54.5        4.00        2.30    
HOB2*  4.0    .933e-01   -14.2        47.0        5.00        3.01    
HOLB   1.0    65.0        95.2        34.0        5.00        3.04    
HRAO   4.9    87.6       -.506        39.3        4.22        2.65    
IISC   2.9    99.9       -.280e-01    76.8        5.34        1.99    
IRKT*  5.8    .209        315.        61.7        5.17        2.61    
JPLM   1.0    .381e+05    71.9        38.0        4.00        2.83    
KELY   3.0    .308e+05    3.37          .         5.68        1.39    
KERG*  3.1    .289e+06    490.          .         4.97        2.75    
KIT3*   .8    153.       -.129e-01    77.0        4.00        2.83    
KOKB*  7.0    196.        .151        64.5        6.86        3.63    
KOUR*  1.0    6.54       -6.53        68.0        5.00        2.03    
KUNM    .9    135.       -.249e-01    70.0        6.00        2.53    
KWJ1*  7.0    115.       -.307e-01    79.5        5.86        1.70    
LHAS*  3.9    126.       -.236e-01    85.5        5.00        2.55    
MAC1*  5.5    88.9        .100e-02    40.7        4.36        2.19    
MAD2   2.0    .774e-01   -.497        81.0        6.00        2.95    
MAG0   5.7    .472e+06    538.        31.7        5.19        2.54    
MALI   6.0    .174e+05   -78.6        86.6        7.51        1.75    
MCM4*  6.9    118.        .835e-03    49.8        5.15        1.25    
METS   1.0    61.7       -223.        89.0        5.00        2.55    
MKEA   5.0    .875e-01   -.198        66.0        4.83        2.42    
NTUS   3.6    200.       -.466e-01    99.5        6.55        1.42    
NYA1   5.8    .949e-01   -.764e-01    47.8        5.67        2.13    
ONSA*  6.9    33.3       -.533e-01    45.6        4.59        2.53    
PETP   1.0    .289e+06    383.        39.0        6.00        2.75    
PIMO   6.0    118.       -.203e-01    72.2        6.27        2.12    
RIOG   1.9    .289e+06    477.        30.5        4.55        3.03    
SANT*  7.0    .194e+05    5.95        51.3        4.60        2.38    
SEY1    .9    108.       -.489e-01    95.0        6.00        1.61    
SFER   4.9    .483        151.        69.4        4.64        2.74    
SYOG   1.9    1.18       -.345e-01    42.8        4.53        1.82    
THTI   1.3    .289e+06    496.        84.3        5.02        2.42    
TID2*  7.0    .103        1.11        43.2        5.31        2.59    
TSKB*  7.0    1.88       -.601        59.7        6.20        2.89    
USNO   7.6    .           .           62.0        6.61        2.80    
USUD   5.0    119.       -.289        44.6        5.22        3.00    
VESL   2.0    .290e+06    508.        31.0        5.00        2.47    
WTZR*  6.9    89.6       -.744        56.9        6.30        3.14    
XIAN   1.0    97.7       -.936e-02    54.0        5.00        2.75    
YAKZ   1.0    79.8       -.834e-01    42.0        5.00        2.64    
YAR1*  7.0    90.0        .431e-02    41.5        4.15        2.22    
YELL*  7.0    562.        .150        49.2        4.85        1.68    
PRN01  6.8    83.1        94.3        55.5        5.00        2.39    
PRN02  7.0    79.5       -96.2        62.9        5.00        2.36    
PRN03  7.0    79.4        30.9        59.6        5.15        2.41    
PRN04  7.0    81.1        28.5        61.0        5.74        2.22    
PRN05  7.0    82.0        212.        65.1        5.31        2.24    
PRN06  7.0    82.4       -.397e-01    62.3        5.31        2.09    
PRN07  7.0    81.8        577.        59.9        5.31        2.40    
PRN08  7.0    79.6        65.0        60.8        5.32        2.09    
PRN09  7.0    82.0       -5.59        60.1        5.15        2.25    
PRN10  7.0    81.5        39.4        63.1        5.45        2.02    
PRN13  7.0    82.4       -83.6        61.6        5.72        2.31    
PRN14  6.8    80.6        29.3        57.0        5.87        2.11    
PRN15  5.0    3.58        714.        59.1        5.00        2.17    
PRN16  7.0    82.0        130.        59.8        5.45        2.33    
PRN17  7.0    82.9       -218.        63.0        5.00        2.18    
PRN18  6.8    83.5        25.8        56.1        5.43        2.22    
PRN19  7.0    81.9        30.1        60.9        5.00        2.14    
PRN21  7.0    82.5        27.0        59.3        5.30        2.34    
PRN22  6.8    .344e+05    134.        63.3        5.16        2.28    
PRN23  7.0    82.4        3.72        63.0        6.00        2.38    
PRN24  7.0    81.6        589.        58.5        5.72        2.43    
PRN25  7.0    81.8        1.98        60.5        5.31        2.41    
PRN26  6.6    83.8        666.        59.1        5.60        2.13    
PRN27  7.0    82.1        28.6        62.1        5.00        2.18    
PRN29  6.6    81.5        523.        59.0        6.00        2.31    
PRN30  7.0    79.9       -28.0        60.6        5.16        2.34    
PRN31  5.0    79.4        23.2        58.6        5.41        2.25    
_______________________
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  8  8   99  8  9   99  8 10   99  8 11   99  8 12   99  8 13   99  8 14
prn   3d rss (cm)
  1     418        336        356        310        369        286        269   
  2     502        364        179        269        372        326        242   
  3     268        186        236        401        255        315        338   
  4     293        290        245        205        219        247        281   
  5     300        412        367        427        367        364        364   
  6     699        682        717        622        964        580        647   
  7     251        324        401        311        336        230        166   
  8     242        334        331        442        275        254        292   
  9     271        482        222        163        195        272        235   
 10     226        366        295        264        259        260        348   
 13     379        615        446        206        336        268        156   
 14    1159        840        547       1371        670       1269        744   
 15     216                              365        235        425        295   
 16     542        684        578        523        764        527        595   
 17     273        162        131        382        626        259        290   
 18     780        922        488        474        583        361        472   
 19     208        450        264        211        177        192        176   
 21     203        204        285        280        353        349        645   
 22     423        410        365        333        338        253        391   
 23     280        531        261        507        488        398        733   
 24     630        583        480        800        710       1197        625   
 25    1159        513        369        213        450        618        493   
 26     741        661        249        503        257        476        498   
 27     263        292        652        320        323        377        315   
 29     300        310        291        342        264        261        481   
 30     297        161        402        213        205        192        120   
 31     465        462                              315        182        364   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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