Subject: [IGSREPORT-4952] Wk 0959 JPL Analysis Report
From: D C Jefferson
Date: Fri, 5 Jun 1998 16:02:45 PDT

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IGS Electronic Report    Fri Jun  5 16:02:45 PDT 1998      Message Number 4952
******************************************************************************

Author: D C Jefferson
Subject: Wk 0959 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0959 (DAYS 144-150, DATES 1998 May 24 - May 30)
******************************************************************************

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/0959.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl09597.sum         This text file.
jpl09597.erp         Earth rotation parameters for GPS week 959.
jpl09597.snx         Ground station coordinates for GPS week 959, SINEX format.
jpl0959[0-6].sp3     GPS ephemerides for GPS week 959, sp3 format.
jpl0959[0-6].tro     Ground station troposphere estimates for GPS week 959.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 8.0 cm

A large clock discontinuity (reset) of about 13 microseconds was detected
for PRN23 at approximately 22:35 on day 146.  A similar reset of about 800
microseconds was detected for PRN43 at approximately 07:05 on day 150.

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: FAIR (not USNO) used as reference clock days 146-148.
WARNING: PIE1 (not USNO) used as reference clock day 149.
WARNING: NRC1 (not USNO) used as reference clock day 150.
WARNING: Data from GALA excluded day 145.
WARNING: Data from KELY, LHAS excluded day 146.
WARNING: Data from CASA, NYA1 excluded day 147.
WARNING: Data from CASA, NYA1 excluded day 148.
WARNING: Data from CASA excluded day 149.
WARNING: Data from NOUM, NYAL, TROM excluded day 150.

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 959 (1998 May 24 - May 30)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
50957.50 -10818  37863   -72654  1894    2    2     8      8 37 22 27   43  236 
50958.50 -10752  38098   -74526  1851    2    2     7      7 37 20 27   73  274 
50959.50 -10713  38334   -76328  1752    2    2     8      8 37 22 27   20  242 
50960.50 -10718  38562   -78067  1726    2    2     8      8 37 21 27  -15  244 
50961.50 -10717  38721   -79738  1617    2    2     8      8 37 23 27   29  202 
50962.50 -10666  38855   -81335  1576    2    2     8      8 37 21 27   74  222 
50963.50 -10580  39029   -82882  1518    2    2     8      8 37 22 27   75  236 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 959:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 959 (1998 May 24 - May 30)
      98  5 24   98  5 25   98  5 26   98  5 27   98  5 28   98  5 29   98  5 30
prn   3d rss (cm)
  1       9          8          4          4          3          4          4   
  2      21         18         10          9         12         10          8   
  3       6          7          8          4          9          4          8   
  4      12          9          6         11         11         12         14   
  5      11         10         11          8         15         22          5   
  6      10         21          6          6         11         25         14   
  7       6          7          6          7         11         14         17   
  8      11          7          6          6         12         29         19   
  9       8          6          5         11         18         26          7   
 10       6          9          6          7          6          6         10   
 13       9         12         11         10         12          7          8   
 14      11          6         17          6          7          9          7   
 15       8          7          8         13          6          7          8   
 16       6          6          9          6          9          7          7   
 17       7          5          9          4          6         12          7   
 18       4          4          5          6          5          7          5   
 19      12         12         10         14          4          8         10   
 21      10         12          7          4          4          4          4   
 22      14          9         12          8          7         11          6   
 23       8         11         13         10         12         11          6   
 24       6          6         11         10          4          7          6   
 25      10         10         11          5          6          5          6   
 26       6          3          4         10          9          8         18   
 27       8          8          7          7          8          5          4   
 29       5         10         21          7         11          4          3   
 30      10         14         11         10         23         29          8   
 31       8          9          9         10          5          9          5   
_______________________
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 959 (1998 May 24 - May 30)
 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    .111        .947        61.5        4.49        2.77    
ASC1   7.0    .313e+04   -.231e-01    77.8        5.62        1.46    
AUCK   4.6    82.6       -.553e-01    40.8        5.25        2.47    
BAHR   6.0    .597        130.        46.9        6.09        3.29    
BARB   1.7    99.3       -.789e-01    32.5        7.52        3.51    
BOGT   1.0    135.       -.227        67.0        6.00        1.79    
BRUS   1.0    .456        3.43        58.0        4.00        2.85    
CAS1   6.8    .795e+07   -.174e+05    36.6        5.72        1.49    
COCO   6.9    116.       -.232e+05    42.0        7.78        2.61    
CRO1   4.0    170.       -.740e-01    55.6        6.03        1.68    
DAV1*  6.9    135.       -.680e-01      .         4.87        1.48    
DGAR   7.0    122.       -.758e-01    68.9        6.15        1.75    
EISL   5.8    116.       -.788e-01    48.1        5.19        2.92    
FAIR*  7.1    .303       -.689e-01    61.5        4.87        2.18    
FORT*  6.9    .238       -.171e-01    68.2        5.75        1.62    
GALA   5.8    122.       -.443e-01    66.1        5.18        1.66    
GODE   3.0    .169        .947        48.0        5.00        2.76    
GOL2*  7.0    42.7       -1.08        57.4        5.18        2.07    
GUAM*  6.9    114.       -.921e-01    60.5        6.30        2.20    
HARK*  7.0    9.23       -7.35        51.4        4.00        2.78    
HRAO   5.0    79.9       -.540        30.8        4.00        2.82    
IISC   5.5    98.3       -.703e-01    73.9        5.74        2.40    
IRKT*   .8    .328        .171        61.0        5.00        2.68    
KELY    .6    .441e+04   -2.68          .         6.00        1.70    
KERG*  1.0    .507e+04    341.          .         5.00        2.46    
KIT3*  4.5    129.       -.596e-01    68.1        5.60        2.66    
KOKB*  7.0    118.        .194        76.4        5.46        2.49    
KWJ1*  7.0    744.       -.738e-01    64.5        6.75        1.84    
LHAS*  1.0    108.       -.275          .         5.00        2.13    
MAC1*  6.9    89.2       -.777e-01    37.9        4.48        2.43    
MAD2*  6.5    .170e+04   -.216        49.2        6.32        2.12    
MAG0   1.0    .288e+06    520.        31.0        4.00        2.42    
MALI*  7.0    52.9       -336.        72.9        7.00        2.15    
METS   1.0    49.1       -156.        73.0        4.00        2.47    
MKEA   7.0    .142       -.122e-01    52.9        5.00        2.60    
NICO   1.0    98.3       -.674e-01    42.0        5.00        2.97    
NOUM   1.0    .289e+06    506.        40.0        7.00        2.29    
NRC1   1.1    .           .           64.0        5.00        2.57    
NYA1   4.0    20.7       -.237        41.7        5.00        1.90    
OHIG*  5.7    .190e+04    .205        53.0        4.69        1.88    
ONSA*  7.0    .147       -.728        44.9        4.00        2.13    
PIE1*  1.0    .           .           51.0        4.00        2.45    
SANT*  6.4    837.        .549        38.5        5.44        1.70    
SELE   2.0    119.       -.140        40.0        5.00        2.81    
SFER    .8    .592        25.6        74.0        6.00        3.49    
TAHI   2.6    580.       -.188        65.9        4.34        2.04    
THU1*  1.9    69.1       -.314e-01    46.5        6.00        2.78    
TID2*  5.9    27.2        .567e-01    35.5        5.18        2.40    
TIDB   1.0    .103e+06    .755          .         5.00        2.47    
TSKB*  6.9    1.51       -2.24        48.9        5.64        2.97    
USNO   2.1    .           .           60.1        6.00        2.69    
USUD   7.0    .714        2.28        44.0        5.59        2.74    
WTZR*  5.7    114.        2.27        62.9        4.87        2.73    
WUHN   2.0    7.21       -83.0        48.5        5.53        2.30    
YAKA   1.9    105.       -.135        63.5        5.00        2.63    
YAKZ    .9    .289e+06    453.        52.0        5.00        2.57    
YAR1*  7.0    88.9       -.778e-01    34.3        4.90        2.45    
YELL*  7.0    .216       -.975e-01    46.9        5.00        1.67    
PRN01  7.0    81.7        48.4        53.0        5.16        2.10    
PRN02  6.6    81.1       -491.        57.1        5.16        2.12    
PRN03  7.0    80.8        13.2        53.7        5.30        2.38    
PRN04  7.0    78.2        28.7        54.9        5.30        2.00    
PRN05  6.5    79.4        150.        54.8        5.16        2.15    
PRN06  6.9    80.3       -.468        59.5        5.45        2.01    
PRN07  7.0    83.4        779.        54.4        5.16        2.10    
PRN08  7.0    83.0        586.        55.6        5.16        1.98    
PRN09  7.0    81.1       -43.0        55.3        5.31        2.35    
PRN10  7.0    81.6        22.2        59.2        5.16        2.07    
PRN13  6.7    .441e+05    807.        57.3        5.48        2.28    
PRN14  7.0    81.5        30.3        51.2        5.45        2.41    
PRN15  7.0    2.82        560.        52.9        5.32        2.39    
PRN16  7.0    82.0        63.6        54.6        5.00        2.28    
PRN17  7.0    81.7       -180.        55.7        5.46        2.24    
PRN18  7.0    79.7        14.2        54.2        5.15        2.31    
PRN19  7.0    79.7        387.        54.1        5.15        1.97    
PRN21  7.0    80.1        41.1        58.8        5.46        2.13    
PRN22  6.8    82.6        2.03        54.2        5.87        2.05    
PRN23  6.8    .105e+04    5.94        60.8        5.58        2.23    
PRN24  7.0    80.0        838.        53.5        5.16        2.14    
PRN25  7.0    80.8       -6.59        51.0        5.00        2.31    
PRN26  7.0    79.6        90.0        52.7        5.31        2.12    
PRN27  7.0    81.3        29.2        55.2        5.46        2.07    
PRN29  7.0    79.9        490.        52.0        5.31        2.28    
PRN30  6.8    81.3       -40.4        53.4        5.30        2.21    
PRN31  7.0    80.5        3.96        54.3        5.60        2.34    
_______________________
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
      98  5 24   98  5 25   98  5 26   98  5 27   98  5 28   98  5 29   98  5 30
prn   3d rss (cm)
  1     219        390        423        191        202        209        204   
  2     382        292        392        747        628        556        618   
  3     426        439        282        176        227        204        484   
  4     523        526        341        268        718        287        390   
  5     408        372        421        302        722        456        375   
  6     792        746        592        496        612        446        590   
  7     456        347        497        796        249        310        566   
  8     452        221        399        465        669        598        325   
  9     246        223        275        208        691        493        441   
 10     239        214        217        643        388        304        390   
 13     195        285        368        246        373        372        378   
 14     361        570        399        393        535        530        610   
 15     346        214        311        391        285        354        285   
 16     478        336        353        406        256        287        258   
 17     397        250        350        367        245        267        284   
 18     300        186        202        232        322        403        205   
 19     238        292        282        320        404        841        249   
 21     476        528        193        339        318        330        459   
 22     584        299        227        523        364        526        691   
 23    1546        958       1230        828       1064       1390       1238   
 24     214        168        272        184        171        273        424   
 25     300        304        335        287        309        288        295   
 26     346        237        155        340        163        157        154   
 27     310        354        230        225        210        228        368   
 29     853        201        235        201        182        216        361   
 30     274        318        425        300        416        284        387   
 31     333        382        446        205        285        207        244   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

global:   algo asc1 auck bahr barb bogt brus cas1 coco cro1 dav1 dgar eisl fair fort gala gode gol2 guam hark hrao iisc irkt kely kerg kit3 kokb kwj1 lhas mac1 mad2 mag0 mali mets mkea nico noum nrc1 nya1 ohig onsa pie1 sant sele sfer tahi thu1 tid2 tidb tskb usno usud wtzr wuhn yaka yakz yar1 yell

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