Subject: [IGSREPORT-6334] Wk 1020 JPL Analysis Report
From: D C Jefferson
Date: Thu, 5 Aug 1999 16:04:34 PDT

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IGS Electronic Report    Thu Aug  5 16:04:34 PDT 1999      Message Number 6334
******************************************************************************

Author: D C Jefferson
Subject: Wk 1020 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1020 (DAYS 206-212, DATES 1999 Jul 25 - Jul 31)
******************************************************************************

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/1020.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10207.sum         This text file.
jpl10207.erp         Earth rotation parameters for GPS week 1020.
jpl10207.snx         Ground station coordinates for GPS week 1020, SINEX format.
jpl1020[0-6].sp3     GPS ephemerides for GPS week 1020, sp3 format.
jpl1020[0-6].tro     Ground station troposphere estimates for GPS week 1020.
jpl1020[0-6].clk     GPS and ground station clocks for GPS week 1020, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 10.0 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 WTZT.

According to the file nanu1999.mes obtained from the IGS CBIS, PRN15 was
unusable day 210.  Data from this satellite did not meet our initial orbit
convergence criteria on this nor the following day (211), and have been
excluded from both days analyses accordingly.

Data from PRN03 were mismodeled on day 209.  Data from PRN18 were similarly
mismodeled days 206 through 208.  Data from PRN13 were mismodeled the entire
week.

A large clock discontinuity (reset) of about 612 microseconds was detected
for PRN08 at approximately 09:10 on day 211.

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 PRN13 excluded the entire GPS week 1020.
WARNING: Data from PRN18, COCO, KOKB, NRC1, NYAL excluded day 206.
WARNING: Data from PRN18, COCO, NRC1 excluded day 207.
WARNING: Data from PRN18, COCO, SCIP excluded day 208.
WARNING: Data from PRN03, COCO, SCIP, SFER excluded day 209.
WARNING: Data from PRN15, COCO, SCIP, SFER excluded day 210.
WARNING: Data from PRN15, COCO, POTS excluded day 211.
WARNING: Data from COCO excluded day 212.

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 1020 (1999 Jul 25 - Jul 31)
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
51384.50  -23540  333177   4947779   3722  44  47  131  131 39  0 25  -732   405
51385.50  -23689  333650   4943980   3876  47  48  138  138 39  0 25  -349   553
51386.50  -23511  334114   4939946   4191  47  46  134  134 39  0 25   172  1022
51387.50  -23378  334964   4935900   3902  48  50  134  134 39  0 25   105  1297
51388.50  -22833  335900   4932140   3617  48  47  144  144 39  0 25   195  1350
51389.50  -22331  336968   4928649   3366  46  47  140  140 39  0 25   268  1211
51390.50  -21602  337800   4924947   4037  44  44  139  139 39  0 26   230  1421
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1020:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1020 (1999 Jul 25 - Jul 31)
      99  7 25   99  7 26   99  7 27   99  7 28   99  7 29   99  7 30   99  7 31
prn   3d rss (cm)
  1       6          6         10          7         11         15          8   
  2       5          7          8          8          8          7          7   
  3      16         11         16                    30         25         21   
  4      10          9          6         12          4         12          9   
  5       7          7          8         10         10         10          8   
  6      11         10         14          8          6         12         13   
  7      11          5          6          8          8         11         12   
  8       9         12          6          5          5          8          8   
  9      11         14          6          8          7          6          9   
 10       8         10          9         12          9         14         12   
 14      30         21         12         19         25         21         22   
 15      40         41         14          6                               10   
 16       5          7         10          8          8         10         12   
 17      17         11         15         28         21         20         23   
 18                                       11         12         13          7   
 19      14         12         10         11         12         13          6   
 21      13         12         12          7         14         14         14   
 22      10         11          9          7         16         13         11   
 23       9         12         19         13         21          8         15   
 24      10         13         16         30         10         18         10   
 25       8         13         10          7          9         13          9   
 26      11          9          8         10          8          8         16   
 27       9          6          6         11          8          9          7   
 29      13         10          8          9         14         15         14   
 30      11         16         11         14         15         17         13   
 31      12         13          7          9          9          8         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 1020 (1999 Jul 25 - Jul 31)
 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    .120       -.726        84.6        5.15        2.65    
ANKR    .9    217.       -.491e-01    80.0        5.00        3.10    
ASC1   6.6    .118e+05   -.178        73.4        6.20        1.41    
AUCK   3.0    93.8        .358e-02    45.7        5.06        2.82    
BAHR   5.0    .797        910.        40.6        5.00        3.25    
BARB   5.8    99.2       -.882e-01    44.0        7.04        3.80    
CHAT   3.0    101.       -.743e-02    79.8        5.34        2.74    
CRO1    .9    .286e+04    .154e-01    67.0        6.00        1.70    
DAV1*  6.9    137.        .117e-01      .         4.72        1.33    
DGAR   5.5    112.       -.284e-01    74.0        5.25        1.75    
EISL   6.7    165.       -.728e-02    69.3        5.33        2.57    
FORT*  7.0    .422        .752e-01    77.2        5.15        1.76    
GALA   2.6    .806e+07   -.115e+05    58.6        4.00        1.08    
GOL2*  7.0    .172        2.14        73.1        4.30        2.40    
GOUG   1.9    .290e+06    510.        53.6        5.55        2.93    
GUAM*  7.0    122.       -.217e-01    79.4        6.84        2.01    
HARK*  7.0    .289e+06    497.        56.1        4.74        3.13    
HOB2*  2.9    3.47       -.548        45.4        5.00        3.00    
HOLB   1.0    109.        67.3        46.0        5.00        3.46    
HRAO   4.0    .164       -.997        39.1        4.00        2.73    
IISC   7.0    103.       -.294e-01    83.2        5.00        2.47    
IRKT*  6.9    .170        315.        69.1        5.46        2.59    
KELY   2.6    .187e+04   -.250          .         5.30        1.38    
KERG*  7.0    .289e+06    503.          .         5.15        2.95    
KIT3*  5.8    195.       -.131e-01    80.0        5.00        2.72    
KOKB*  5.5    264.       -2.44        50.3        6.83        3.50    
KUNM   6.0    129.       -.377e-01    73.8        5.53        2.64    
KWJ1*  7.0    112.       -.149e-01    84.7        6.36        1.63    
LHAS*  1.0    114.       -.901e-02    72.0        5.00        2.83    
MAC1*  3.3    87.2        .766e-02    39.1        4.42        1.84    
MAD2   4.0    28.7        .328        85.3        6.51        2.49    
MAG0   6.9    .289e+06    480.        31.4        4.88        2.05    
MALI*  7.0    .509e+04   -33.9        86.8        7.15        1.87    
MCM4   6.9    113.        .278e-02    49.5        5.00        1.11    
MKEA   7.0    .917e-01    .158        73.5        4.61        2.54    
NANO   2.0    9.33        227.        48.0        4.00        2.86    
NOTO   1.0    .865e-01    177.        70.0        5.00        3.00    
NOUM   2.0    .290e+06    499.        79.5        5.00        1.86    
NTUS   4.6    212.       -.375e-01   100.0        6.03        1.43    
NYA1   7.0    .160       -.547e-01    48.6        5.00        1.94    
ONSA*  7.0    33.4       -.529e-01    45.1        4.31        2.99    
PERT*  1.0    2.65       -.224        64.0        4.00        2.71    
PIE1*  1.0    .563e-01   -.268        55.0        5.00        2.76    
PIMO   1.0    119.        .327e-02    69.0        6.00        2.16    
RAMO   1.0    .288e+06    504.        61.0        6.00        2.86    
REYK    .9    133.        .131e-01    66.0        6.00        1.59    
RIOG   2.0    .289e+06    475.        30.5        4.52        3.03    
SANT*  7.0    8.60        .340        54.7        4.75        2.36    
STJO    .8    .777e+04   -.993        63.0        4.00        1.66    
SYOG    .9    1.11       -1.09        40.0        4.00        1.73    
THTI   6.2    .288e+06    503.        82.6        5.31        2.72    
TID2*  7.0    128.        .460        45.1        4.87        2.38    
TSKB*  7.0    1.58        1.05        63.9        5.16        3.02    
USNO   7.2    .           .           62.1        7.04        2.86    
USUD   5.0    .141       -3.74        47.7        6.00        2.96    
VESL    .9    .289e+06    509.        37.0        5.00        1.85    
VILL*  1.0    467.        2.69        41.0        5.00        2.94    
WTZR*  5.8    1.78        2.20        58.5        6.16        3.13    
YAR1*  4.8    80.0       -.954e-04    43.1        4.42        2.33    
YELL*  6.9    .176        .134        61.4        4.86        1.54    
PRN01  6.8    81.3        92.7        62.7        5.17        2.36    
PRN02  7.0    81.3       -90.4        66.9        5.00        2.43    
PRN03  6.0    80.9        26.5        66.2        5.18        2.20    
PRN04  7.0    81.7        495.        62.3        5.45        2.18    
PRN05  7.0    83.4        209.        66.9        5.00        2.36    
PRN06  6.9    80.1       -.557e-01    65.1        5.57        2.10    
PRN07  7.0    81.4        572.        63.3        5.30        2.33    
PRN08  6.9    .485e+05    535.        64.8        5.16        2.11    
PRN09  7.0    82.2       -3.81        62.6        5.16        2.28    
PRN10  7.0    80.8        38.9        64.3        5.00        2.06    
PRN14  7.0    82.6        27.9        61.8        6.00        2.18    
PRN15  5.0    2.45        709.        67.9        5.42        2.23    
PRN16  7.0    81.2        128.        63.9        5.30        2.29    
PRN17  6.9    79.0       -217.        67.6        5.15        1.99    
PRN18  3.9    80.2        25.7        63.3        5.27        2.01    
PRN19  7.0    79.9        18.4        64.2        5.00        2.24    
PRN21  7.0    79.1        25.6        63.0        5.16        2.34    
PRN22  7.0    82.5        436.        66.0        5.00        2.26    
PRN23  7.0    81.4        3.18        65.6        5.73        2.47    
PRN24  7.0    82.9        591.        58.7        5.16        2.42    
PRN25  7.0    81.6        1.87        63.7        5.30        2.43    
PRN26  6.6    81.8        658.        64.5        5.59        2.08    
PRN27  7.0    80.5        27.2        66.2        5.00        2.20    
PRN29  6.8    81.2        519.        59.1        5.87        2.29    
PRN30  7.0    80.7       -26.5        64.3        5.00        2.20    
PRN31  7.0    78.7        22.2        64.4        5.00        2.27    
_______________________
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  7 25   99  7 26   99  7 27   99  7 28   99  7 29   99  7 30   99  7 31
prn   3d rss (cm)
  1     346        441        325        380        404        510        526   
  2     223        241        156        274        252        432        598   
  3     221        252        335                   274        332        290   
  4     399        231        266        276        366        262        282   
  5     379        384        560        480        333        318        296   
  6     784        677        632        640        677        657        755   
  7     471        217        273        366        350        436        216   
  8     507        470        509        649        328        527        404   
  9     127        165        166        396        144        340        243   
 10     257        385        264        256        494        194        169   
 14    1233       1083        677       1208        901        495        374   
 15     316        707        196        164                              446   
 16     517        596        419        374        765        458       1016   
 17     376        231        170        207        189        150        175   
 18                                      463        672        691        580   
 19     231        231        189        164        189        154        258   
 21     754        178        622        233        338        307        467   
 22     174        240        269        316        339        274        260   
 23     430        345        426        636       1101        880        762   
 24     972        594        444        620        384        333       1190   
 25     434        575        456        260        434        411        363   
 26     188        227        524        243        507        337        293   
 27     271        357        310        281        444        509        442   
 29     620        582        560        428        583        500        318   
 30     223        337        266        244        214        156        215   
 31     248        293        429        224        387        521        344   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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