Subject: [IGSREPORT-6046] Wk 1007 JPL Analysis Report
From: D C Jefferson
Date: Fri, 7 May 1999 19:57:02 PDT

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IGS Electronic Report    Fri May  7 19:57:02 PDT 1999      Message Number 6046
******************************************************************************

Author: D C Jefferson
Subject: Wk 1007 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 1007 (DAYS 115-121, DATES 1999 Apr 25 - May 01)
******************************************************************************

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/1007.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl10077.sum         This text file.
jpl10077.erp         Earth rotation parameters for GPS week 1007.
jpl10077.snx         Ground station coordinates for GPS week 1007, SINEX format.
jpl1007[0-6].sp3     GPS ephemerides for GPS week 1007, sp3 format.
jpl1007[0-6].tro     Ground station troposphere estimates for GPS week 1007.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 10.0 cm

According to several IGS Mail Messages (Nos. 2242, 2248, etc.) and various
NANUs referenced therein, PRN27 underwent date testing at various times
between days 113 and 121.  We have excluded data from this satellite from
our analyses this entire week.

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: WTZR (not USNO) used as reference clock days 115 and 117.
WARNING: YELL (not USNO) used as reference clock day 116.
WARNING: NRC1 (not USNO) used as reference clock days 118 and 119.
WARNING: Data from PRN18 excluded the entire GPS week 1007.
WARNING: Data from PRN27 excluded the entire GPS week 1007 due to Y2K/rollover           testing.
WARNING: Data from CSN1, FLIN, SANT, TROM, WTZT excluded day 115.
WARNING: Data from CSN1, SANT excluded day 116.
WARNING: Data from AMC2, CSN1, IRKT, NYAL, TROM excluded day 117.
WARNING: Data from AMC2, CSN1, FORT, GOPE, METS, SANT, SOL1, USNO excluded day           118.
WARNING: Data from CSN1, FORT, SOL1 excluded day 119.
WARNING: Data from CSN1, NYAL, SANT, SOL1 excluded day 120.
WARNING: Data from CSN1, HERS, SOL1 excluded day 121.

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 1007 (1999 Apr 25 - May 01)
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
51293.50   -5895  251329   5679807  13545  58  68  202  202 37  0 25 -1855   717
51294.50   -7418  252286   5666553  12963  55  65  197  197 37  0 25  -962   702
51295.50   -8102  253152   5652986  14171  50  57  184  184 37  0 25   -93   658
51296.50   -8177  254284   5638676  14449  50  58  185  185 37  0 25    37  1262
51297.50   -8330  255658   5624365  14173  52  60  189  189 37  0 25    24   750
51298.50   -8590  257115   5609980  14596  58  59  182  182 37  0 25  -526  1545
51299.50   -9508  258318   5595509  14346  54  56  183  183 37  0 25  -891  1087
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 1007:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE               GPS week 1007 (1999 Apr 25 - May 01)
      99  4 25   99  4 26   99  4 27   99  4 28   99  4 29   99  4 30   99  5  1
prn   3d rss (cm)
  1       6          6         12          8         14          8         10   
  2      10          6          7         10         20         24         12   
  3       4         10          4          7          5         14         14   
  4       5         20         14          5          9          7          8   
  5      12         22          7         25         22         12         10   
  6      12         13         17         11         18          7          6   
  7      16         14         12          6         11          9          7   
  8      10         11         16         14         12         11         11   
  9      16         15         13          8         13         16         13   
 10       8         11         14         12          7          9          5   
 13       9         11         11         11          9          8          5   
 14       5         23         22          9          9         10          9   
 15       6          8          7          8         10         14         10   
 16       8         14         17         16         11          6          6   
 17      21         19          9         13         16          8          6   
 19      14         19         12         15          6         16         21   
 21      21          8          4          9         10         15         10   
 22       5          8          6          8          7          9          9   
 23      26         12         18         11         14         18         15   
 24      11         10         10         15         13          9         10   
 25       4          6          6          8          9          9          9   
 26      10         14          8          6         14         14          8   
 29      12          9          9          9          9          9          9   
 30       9         26         10          8         10         10          7   
 31      11          9          7         10          6          6          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 1007 (1999 Apr 25 - May 01)
 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    8.38        .181e-01    71.5        4.00        2.58    
AOML   2.9    89.0       -.129e-01    53.2        6.36        2.63    
AREQ*  1.9    123.       -.200e-01    61.5        4.55        2.15    
ASC1   1.6    635.       -.599e-02    76.0        6.55        1.53    
AUCK   4.0    91.9       -.204e-01    43.8        4.27        2.95    
BAHR   7.0    .555        210.        40.8        4.00        2.82    
BARB    .8    99.3       -.567e-01    44.0        5.00        3.55    
BOGT   3.4    .169e+04    .155e-01    77.8        5.00        1.35    
CAS1   2.7    5.40        897.        34.3        5.66        1.13    
CHAT   2.8    109.        .740e-03    80.0        5.00        2.56    
CIC1   1.0    109.       -.182e-01    48.0        5.00        2.62    
DAV1*  6.8    143.        .202e-02      .         4.87        1.32    
DGAR   4.4    385.       -.345e-01    72.1        5.63        1.63    
EISL   6.2    133.       -.930e-02    61.6        5.10        2.69    
FAIR*  6.2    25.7        .105        56.5        4.82        2.10    
FORT*  1.6    .525       -.225        86.0        7.00        1.65    
GOL2*  6.0    45.3       -.605        77.9        4.10        2.04    
GOUG   6.9    .289e+06    503.        56.6        5.31        2.52    
GUAM*  4.8    134.       -.461e-01    79.5        6.24        2.31    
HARK*  7.0    89.6       -.170e-01    58.4        4.31        2.65    
HOB2*  2.8    .327       -3.13        47.8        5.00        2.72    
HOFN   1.0    .289e+06    506.        49.0        6.00        2.03    
HRAO   6.0    .160       -.738e-02    43.5        4.18        2.90    
IRKT*  4.3    5.39       -6.02        57.6        4.67        2.67    
KELY   2.3    .160e+04   -.327        46.4        6.00        1.28    
KIT3*  7.0    107.        .718e-01    79.1        4.16        1.54    
KOKB*  6.4    14.5        .105        79.9        5.00        2.58    
KOUR*  1.6    3.78        .446          .         6.07        2.10    
KUNM   6.3    .124e+04    .178e-02    76.9        4.87        2.31    
KWJ1*  7.0    131.       -.114e-01    89.2        5.73        1.76    
LPGS   1.9    153.        .896e-03    55.6        5.00        1.84    
MAC1*  1.9    95.1       -.127e-01    38.5        4.00        2.46    
MAD2*  6.8    697.       -.437        82.6        6.18        2.32    
MAG0   1.7    .290e+06    488.        34.5        5.00        2.49    
MALI*  7.0    .122e+05   -83.1        92.9        7.01        2.09    
MATE*  1.0    .174        4.00        50.0        4.00        2.71    
MCM4   5.3    147.       -.481e-02    47.8        4.85        1.08    
MDVO   1.9    .420        263.        72.5        6.00        1.91    
MKEA   1.9    .313       -.123        67.5        4.00        2.34    
NOTO   1.0    .650e-01    177.        49.0        5.00        3.55    
NOUM   2.7    .289e+06    498.        64.2        5.39        2.02    
NRC1   4.0    .978e-01   -.196e-01    78.9        3.54        2.83    
NSSP   1.0    100.        .112e-03    59.0        4.00        2.40    
NTUS   4.5    101.       -.544e-01    91.0        6.83        1.38    
NYA1   4.6    .134       -.154        41.0        5.13        1.60    
ONSA*  5.7    32.8       -.507e-01    48.7        4.59        2.37    
PIMO   4.0    419.       -.217e-01    79.5        5.53        2.49    
SANT*  2.1    965.       -2.07        49.0        5.28        1.38    
SCIP   1.0    287.       -.811e-01    43.0        3.00        2.93    
STJO   1.0    3.53       -.423e-01    68.0        4.00        2.44    
SUWN   2.0    205.       -.274e-02    56.5        4.00        3.10    
THU1*   .5    76.4        .641e-02    43.0        5.00        1.96    
TID2*  6.9    383.        .622        40.0        4.87        2.18    
TIXI    .9    97.4       -.956e-01    33.0        4.00        2.70    
TOUL   1.0    .330        155.        70.0        5.00        2.64    
TSKB*  3.4    1.17       -.692        50.5        4.00        3.05    
UCLU    .6    110.       -.428e-01    52.0        4.00        2.85    
USNO   2.1    .           .           63.1        5.00        2.53    
USUD   5.0    .149       -.996        47.4        4.00        3.13    
VESL   5.7    .290e+06    503.        31.6        4.84        2.38    
WTZR*  6.8    .127        .669        67.9        4.46        2.85    
YAKZ   2.0    80.4       -.868e-01    46.0        5.00        2.61    
YAR1*  6.9    85.8       -.434e-02    40.9        4.00        2.01    
YELL*  7.0    .260        .411        50.7        4.58        1.51    
ZECK   1.9    75.1       -.273e-02    50.0        4.00        2.29    
PRN01  7.0    79.6        82.1        55.3        5.00        2.39    
PRN02  6.6    82.8       -53.1        62.9        5.16        2.02    
PRN03  7.0    80.5        116.        62.6        5.00        2.36    
PRN04  6.9    82.2        566.        65.1        5.46        1.97    
PRN05  6.6    81.4        197.        63.0        5.16        1.70    
PRN06  7.0    81.1        .280        64.5        5.00        2.01    
PRN07  6.9    80.7        331.        62.6        4.90        2.29    
PRN08  7.0    81.0        783.        62.3        5.00        2.01    
PRN09  7.0    83.0       -40.2        61.5        5.00        2.04    
PRN10  7.0    81.6        35.5        63.0        5.00        2.08    
PRN13  7.0    80.1       -137.        63.4        5.00        2.17    
PRN14  7.0    80.9        20.0        62.5        5.00        1.97    
PRN15  6.8    3.32        677.        66.4        5.00        2.03    
PRN16  7.0    80.6        113.        64.1        5.00        2.17    
PRN17  6.8    81.4       -209.        61.5        4.87        2.20    
PRN19  7.0    79.4       -3.01        60.7        5.00        2.27    
PRN21  7.0    79.5        15.8        61.5        4.87        2.15    
PRN22  6.9    81.2        374.        65.2        5.00        2.19    
PRN23  7.0    79.8        12.4        63.8        5.45        2.22    
PRN24  6.9    80.5        565.        62.7        5.00        2.14    
PRN25  7.0    80.2        .765        57.2        5.00        2.18    
PRN26  6.9    81.3        486.        59.1        5.00        2.19    
PRN29  7.0    78.4        416.        57.5        5.00        2.30    
PRN30  6.7    81.7       -16.2        62.9        5.04        1.82    
PRN31  7.0    80.1        17.5        60.0        5.00        2.17    
_______________________
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 25   99  4 26   99  4 27   99  4 28   99  4 29   99  4 30   99  5  1
prn   3d rss (cm)
  1     245        163        165        170        213        723        537   
  2     224        266        217        206        192        161        208   
  3     352        318        394        303        242        209        460   
  4     327        499        327        318        239        231        219   
  5     443        685        417        568        381        390        389   
  6     360        712        547        632        458        398        633   
  7     243        426        361        217        217        269        439   
  8     260        362        368        388        207        215        268   
  9     515        396        207        280        359        357        180   
 10     280        262        211        541        349        325        362   
 13     291        136        233        399        161        253        452   
 14     452        553        967        952        349        689        758   
 15     297        361        361        305        375        545        715   
 16     316        379        358        307        305        495        422   
 17     342        510        280        287        291        484        255   
 19     452       1120        214        530        329        474        789   
 21     416        279        280        220        266        288        239   
 22     357        526        233        286        384        319        438   
 23     308        437        320        373        502        620        493   
 24     190        219        346        280        599        462        283   
 25     208        397        489        242        482        631        289   
 26     566        305        153        143        553        262        169   
 29     296        308        238        284        330        329        268   
 30     211        197        250        183        281        212        201   
 31     404        469        305        178        270        305        263   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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