Subject: [IGSREPORT-6115] Wk 1010 JPL Analysis Report
From: D C Jefferson
Date: Fri, 28 May 1999 14:14:24 PDT

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IGS Electronic Report    Fri May 28 14:14:24 PDT 1999      Message Number 6115
******************************************************************************

Author: D C Jefferson
Subject: Wk 1010 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1010 (DAYS 136-142, DATES 1999 May 16 - May 22)
******************************************************************************

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/1010.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10107.sum         This text file.
jpl10107.erp         Earth rotation parameters for GPS week 1010.
jpl10107.snx         Ground station coordinates for GPS week 1010, SINEX format.
jpl1010[0-6].sp3     GPS ephemerides for GPS week 1010, sp3 format.
jpl1010[0-6].tro     Ground station troposphere estimates for GPS week 1010.
jpl1010[0-6].clk     GPS and ground station clocks for GPS week 1010, RINEX.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 10.0 cm

PRODUCTS UPDATE
---------------
This week, we begin reporting clock estimates of all GPS satellites and ground
receivers participating in our orbit solution process (satellite clocks are
reported at a rate of 30 seconds, ground stations are at 5 minutes).  The
files, one for each solution day, will be made available on a weekly basis
along with the other IGS products; please see the products listing in the
header above.  The file records are arranged according to the extended RINEX
format documented at http://maia.usno.navy.mil/gpst/clock-format .  We'd
like to express our appreciation to Rob Liu of Raytheon for developing the
software to produce these new clock files from our existing products.

GENERAL
-------
A large clock discontinuity (reset) of about 13 microseconds was detected
for PRN23 at approximately 17:10 on day 137.

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 CHUR, GOLD, HERS, LHAS, TROM, URUM excluded day 136.
WARNING: Data from LHAS, URUM, WTZT excluded day 137.
WARNING: Data from LHAS, NYAL, PIN1, TORP, TROM, URUM excluded day 138.
WARNING: Data from CAS1, DHLG, LHAS, PIN1, TORP, URUM excluded day 139.
WARNING: Data from DHLG, LHAS, TORP excluded day 140.
WARNING: Data from DAV1, DHLG, LHAS excluded day 141.
WARNING: Data from DAV1, LHAS excluded day 142.

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 1010 (1999 May 16 - May 22)
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
51314.50  -18937  272522   5423123  11154  54  56  182  182 38  0 26  -464  1962
51315.50  -19486  274169   5412168  10755  57  58  181  181 38  0 26  -111  1922
51316.50  -19853  275468   5401214  11153  57  58  180  180 38  0 26    -8  1382
51317.50  -20028  276470   5389774  11728  56  57  181  181 38  0 26  -468   982
51318.50  -20144  277163   5378084  11652  51  51  177  177 38  0 26  -669   815
51319.50  -20288  277850   5366087  12341  46  50  173  173 38  0 26   -26   655
51320.50  -20298  278606   5353708  12416  49  51  177  177 38  0 26  -328   944
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1010:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1010 (1999 May 16 - May 22)
      99  5 16   99  5 17   99  5 18   99  5 19   99  5 20   99  5 21   99  5 22
prn   3d rss (cm)
  1      10          8         11         13          7         11          7   
  2      24         13          8         12         34         20         18   
  3       9          6          6          8         12          7          3   
  4      12         10         12          9         12         11          7   
  5      13         10          9         18         14         12         21   
  6      10         14         17         15         14         14         12   
  7      13         15         13         15         15          9         11   
  8      11          4          8          9          9          7          6   
  9       8         17         12         13         10          7          7   
 10       7          6         13         12         22          7         10   
 13      13         16         15          9         13          6         11   
 14      27         13          7         15         12          9          6   
 15      10         12          7          8          5          9          7   
 16      14          9         10         11         12         10          8   
 17       6         12          8         14          9         17         10   
 19      12          7         10          9          8         10          7   
 21       8         14         10         11         11          8          9   
 22       8          9         10         19         11          5          5   
 23      10         12         17         16         11         10          8   
 24      11          9         12         10         10         24         23   
 25      11          9          8          8          9          4          6   
 26      14         17          9         10          9         10          9   
 27      15         14         18         11          9          8          9   
 29       9          8         13         11         11          6         12   
 30      10         15         14         12         14          6         13   
 31       8          6          7          9         10          9          6   
_______________________
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 1010 (1999 May 16 - May 22)
 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    .792e-01   -.179        83.1        4.60        2.67    
AREQ*  1.0    125.       -.890e-02    65.0        4.00        2.68    
AUCK   5.0    87.2       -.341e-02    44.2        4.00        2.67    
BAHR   7.0    .508        210.        38.6        4.31        2.56    
BARB   3.3    98.3       -.874e-01    44.1        6.14        3.49    
CHAT   1.0    91.9        .862e-02    80.0        5.00        2.56    
CRO1   2.9    .124e+04    .264e-01    64.1        5.08        1.63    
DAV1*  3.8    136.        .883e-02      .         5.03        1.51    
DGAR   4.1    471.       -.456e-01    70.9        6.29        1.55    
EISL   7.0    131.       -.120e-01    62.2        5.30        2.78    
FAIR*  5.6    .431        .103        98.0        4.49        2.25    
FORT*  7.0    .164       -.238        80.7        5.93        1.73    
GALA   1.8    .691e+07   -.407e+04    59.5        4.00        1.17    
GOL2*  7.0    .112       -.906        79.9        4.46        2.41    
GOUG   3.6    .289e+06    506.        54.4        5.00        2.67    
GUAM*  6.9    140.       -.423e-01    74.1        7.16        2.10    
HARK*  5.8    88.0       -.373e-02    65.7        4.91        2.53    
HOB2*  6.9    .200       -6.49        48.4        5.00        2.87    
HOLB   1.0    19.8        7.55        42.0        5.00        3.53    
HRAO   5.0    21.9       -.186        39.7        4.64        2.54    
IRKT*  5.9    .195        .301e-01    66.0        5.00        2.59    
KELY   3.6    .758e+05    6.43        60.6        5.00        1.88    
KIT3*  5.4    185.       -.626e-02    71.9        3.77        .765    
KOKB*  5.7    55.3       -.733e-01    79.5        5.26        2.37    
KOUR*  1.0    4.85       -7.22        78.0        6.00        1.95    
KUNM   6.4    252.       -.176e-01    78.1        5.00        2.19    
KWJ1*  7.0    154.       -.547e-02    84.0        6.45        1.86    
LPGS   1.0    138.        .155e-01    55.0        5.00        3.10    
MAC1*  5.8    86.8       -.555e-03    40.2        4.17        2.34    
MAD2*  7.0    333.       -1.12        85.0        6.15        2.19    
MAG0   2.9    .289e+06    477.        34.0        4.00        2.26    
MALI*  5.9    41.1       -77.9        91.7        7.33        1.79    
MCM4   2.8    116.        .348e-02    48.8        5.00        1.41    
MDVO   2.0    .316        263.        74.5        6.00        1.96    
MKEA   7.0    .808e-01   -4.31        68.6        4.47        2.64    
NANO   4.0    8.00        39.4        47.3        4.00        2.68    
NOUM   1.0    .289e+06    490.        68.0        7.00        1.69    
NTUS   4.4    127.       -.562e-01    102.        6.01        1.31    
NYA1   5.0    .168       -.354        57.2        5.20        1.80    
ONSA*  3.8    32.9       -.530e-01    47.0        4.29        2.38    
PETP   2.5    .166e+04    .346        72.1        5.00        2.47    
PIMO   4.0    128.       -.233e-01    70.2        6.04        2.19    
REYK   1.0    104.        .106e-01    67.0        6.00        1.91    
SANT*  6.6    134.       -.161        50.3        4.48        2.41    
SELE   1.0    356.        .683e-02    64.0        3.00        2.40    
STJO   2.0    3.23       -.800e-03    71.8        4.53        2.17    
TID2*  7.0    .935e-01   -.992        43.0        4.74        2.64    
TIXI   2.9    101.       -.797e-01    32.3        4.71        2.81    
TSKB*  7.0    1.94       -.773        58.4        4.90        3.07    
USNO   7.3    .           .           65.7        5.48        2.76    
USUD   7.0    .132       -6.36        49.4        4.90        3.02    
VESL   3.8    .288e+06    514.        34.0        4.25        2.46    
WTZR*  7.0    408.       -1.81        78.3        5.44        2.76    
YAR1*  7.0    89.2       -.383e-02    43.3        4.77        2.12    
YELL*  7.0    .204       -.613e-02    67.1        4.45        1.80    
ZECK   2.9    79.2       -.117e-01    62.1        4.36        1.96    
PRN01  7.0    82.3        84.6        61.7        5.00        2.50    
PRN02  6.1    81.2       -61.7        68.0        5.16        2.17    
PRN03  7.0    81.4        4.52        67.1        5.00        2.49    
PRN04  7.0    81.7        568.        63.1        5.32        2.15    
PRN05  6.5    79.7        199.        64.2        5.00        1.82    
PRN06  6.9    82.1        .399        67.3        5.00        1.84    
PRN07  7.0    82.5        423.        60.1        5.00        2.40    
PRN08  7.0    78.9        765.        61.4        5.00        2.17    
PRN09  7.0    80.3       -43.1        63.3        5.00        2.36    
PRN10  6.9    80.7        36.3        69.9        5.16        1.97    
PRN13  7.0    83.0       -178.        65.4        5.00        2.27    
PRN14  7.0    81.3        22.0        61.9        5.16        2.09    
PRN15  7.0    3.53        684.        64.8        5.03        2.13    
PRN16  7.0    81.1        116.        66.7        5.16        2.12    
PRN17  7.0    80.8       -211.        62.6        5.00        2.04    
PRN19  7.0    81.8       -5.97        65.8        5.00        2.39    
PRN21  7.0    80.9        18.1        63.7        5.16        2.20    
PRN22  6.8    81.9        410.        64.2        5.46        2.12    
PRN23  6.7    .122e+04    4.11        63.5        5.00        2.26    
PRN24  7.0    80.2        577.        66.4        5.00        2.22    
PRN25  7.0    81.6        .880        57.9        5.00        2.25    
PRN26  7.0    79.9        544.        64.5        5.31        2.27    
PRN27  7.0    84.2        20.6        65.7        5.00        2.45    
PRN29  7.0    79.7        452.        61.4        5.00        2.18    
PRN30  6.7    81.8       -18.6        59.6        5.15        1.77    
PRN31  7.0    77.8        18.7        62.3        5.00        2.50    
_______________________
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  5 16   99  5 17   99  5 18   99  5 19   99  5 20   99  5 21   99  5 22
prn   3d rss (cm)
  1     261        222        179        189        165        396        453   
  2     240        336        799        828        529        444        317   
  3     331        241        233        167        263        202        342   
  4     196        140        372        275        249        501        436   
  5     408        443        503        432        511        408        399   
  6     444        619        672        811        576        568        627   
  7     380        357        242        253        230        314        175   
  8     168        321        327        229        265        660        250   
  9     232        183        272        212        248        250        243   
 10     474        366        454        277        319        374        566   
 13     214        160        220        254        234        255        220   
 14    1322        562        386        363        496        400        368   
 15     188        212        277        255        182        252        232   
 16     320        659        796        522        318        398        532   
 17     534        319        332        174        185        247        525   
 19     374        478        904        569        240        248        166   
 21     366        190        262        344        190        292        372   
 22     315        683        909        653        503        636        390   
 23     769        279        636       1310       1418        981        399   
 24     462        330        360        318        376        338        317   
 25     420        434        448        388        457        314        292   
 26     255        136        153        248        118        293        150   
 27     446        326        225        409        314        536        300   
 29     303        447        424        344        417        508        454   
 30     458        222        382        418        308        334        330   
 31     323        386        373        232        199        183        653   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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