Subject: [IGSREPORT-3590] Wk 0897 JPL Analysis Report
From: D C Jefferson
Date: Fri, 28 Mar 1997 12:58:47 PST

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IGS Electronic Report    Fri Mar 28 12:58:47 PST 1997      Message Number 3590
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Author: D C Jefferson
Subject: Wk 0897 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0897 (DAYS 75-81, DATES 1997 Mar 16 - Mar 22)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb

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 (128.149.70.41),
directory pub/jpligsac/0897.  These files (except for *.tro) have also
been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08977.sum         This text file.
jpl08977.erp         Earth rotation parameters for GPS week 897.
jpl08977.snx         Ground station coordinates for GPS week 897, SINEX format.
jpl0897[0-6].sp3     GPS ephemerides for GPS week 897, sp3 format.
jpl0897[0-6].tro     Ground station troposphere estimates for GPS week 897.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 12.0 cm

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: PIE1 (not ALGO) used as reference clock days 075-079.
WARNING: ONSA (not ALGO) used as reference clock day 080.
WARNING: Data from ZWEN excluded day 075.
WARNING: Data from GOPE, NYAL excluded day 076.
WARNING: Data from NYAL excluded day 078.
WARNING: Data from COCO, KELY, XIAN excluded day 079.
WARNING: Data from FMC2, KELY, SHK1, STL3 excluded day 080.
WARNING: Data from BRU1, FMC2, KELY, SHK1, SNI1, STL3 excluded day 081.

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 897 (1997 Mar 16 - Mar 22)
     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
50523.50 -18700  27228  -248829  2626    3    3     8      8 37 12 25 -114  398 
50524.50 -18802  27619  -251484  2684    3    3     8      8 37 12 25  -83  346 
50525.50 -18857  27963  -254136  2621    3    3     8      8 37 12 25  -68  348 
50526.50 -18867  28334  -256772  2650    3    4     8      8 37 11 25  -48  341 
50527.50 -18899  28693  -259383  2573    3    3     8      8 37 12 25  -71  338 
50528.50 -18932  29066  -261978  2617    3    3     8      8 37 12 25  -60  320 
50529.50 -18954  29427  -264553  2532    3    3     8      8 37 12 25  -44  346 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 897:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 897 (1997 Mar 16 - Mar 22)
      97  3 16   97  3 17   97  3 18   97  3 19   97  3 20   97  3 21   97  3 22
prn   3d rss (cm)
  1      10         12         16         16         19         15         12   
  2      10         15         10          9         16         13          8   
  3      17         22         24         23         29         27         22   
  4       9          6         12          7         10          6          5   
  5      11          9          8          9         13          9         11   
  6      16         14         10         15         14         15         15   
  7      14         10          8          7         10          9          8   
  9      13          8         11         10         15         10         16   
 10      23         18          7         11         11          8         15   
 14       6         10          8         10         11         10          7   
 15      12         12          8         12         10          8         10   
 16      10          8          8         12         13         13          6   
 17      16         20         21          8          6          8          5   
 18       9         14         13         11          8          8          6   
 19      26         23         13          7         21         23         13   
 21      15         18         12         15         12          8         14   
 22      17         14          8          9         17         13         11   
 23      16         14          8         12         11         16         11   
 24       6          8          7         10          4          9         15   
 25       6         16         14          7         11         13         15   
 26      24         14         12         13         20         12          8   
 27      16         15         10         21         19         23         22   
 29       6         12          9         21         18         20         11   
 30      13          9         10          6         14          8         13   
 31      20         25         15          8         14         15         10   
_______________________
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 897 (1997 Mar 16 - Mar 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*  6.9    805.       -.517        48.2        4.31        2.93    
ANKR   1.0    97.0       -.169        53.0        4.00        3.32    
ASC1   6.8    .194e+05    .184        88.0        5.16        1.58    
BAHR   4.5    .553        263.        42.7        5.50        3.24    
BRAZ    .9    105.        2.05        62.0        6.00        2.04    
BRUS   5.0    .195        5.14        59.4        4.22        2.91    
CAS1   1.0    26.8        836.        42.0        5.00        1.67    
CHAT   7.0    109.        .168        79.6        5.30        2.92    
COCO   4.8    .157e+06   -526.        43.6        8.82        2.77    
CRO1   6.0    138.        .231        47.2        5.69        2.38    
DAV1   5.9    38.8        .154e+04    36.6        4.84        1.74    
DGAR   6.9    .132e+04    .129        68.4        7.90        1.83    
EISL   7.0    137.        .170        54.4        6.49        3.10    
FAIR*  7.0    6.06        .481        33.2        4.00        2.39    
FLIN   1.0    75.4       -.150        46.0        4.00        2.53    
FORT   5.7    .270       -.581        51.4        6.68        2.87    
GOL2*  7.0    5.55        .233        45.6        4.16        3.01    
GUAM   7.0    117.        .171        70.2        6.77        2.20    
HART*  7.0    9.66        6.70        46.3        5.15        2.69    
IISC   2.9    85.7       -.159        72.2        6.32        2.42    
IRKT   4.9    .138       -.426        55.4        4.62        2.89    
KELY   1.7    126.       -.130          .         5.00        1.86    
KERG   5.9    .122e+05    26.3          .         5.38        2.11    
KIT3   3.9    167.        .441        89.3        5.00        2.36    
KOKB*  6.8    192.        .849e-01    78.8        5.64        2.22    
KOSG*  6.9    1.82       -4.00        40.7        3.65        2.61    
KWJ1   7.0    90.6        .166        69.0        8.34        1.72    
LHAS   5.8    638.        .209        65.1        5.36        2.34    
MAC1   2.9    76.9        .638        30.3        4.00        2.27    
MADR*  7.0    .926e-01    1.01          .         5.73        2.68    
MALI    .5    17.4       -305.          .         8.00        1.79    
MAS1   6.9    116.       -.116        41.9        4.04        2.68    
MCM4   7.0    93.5        .171        39.4        4.73        1.89    
MKEA   6.0    .809e-01    .429e-01    47.9        5.69        2.49    
MOIN   4.5    94.0       -.144        65.1        7.42        1.85    
NOTO   2.0    .145        14.9        32.5        6.09        2.96    
NRC1   2.0    .928e-01    1.02        47.0        3.54        2.60    
NYAL   2.6    20.4       -.195          .         4.80        1.94    
OHIG   5.6    .338e+05    1.56        57.8        5.00        1.49    
ONSA   1.0    .           .           48.0        4.00        2.24    
PAMA   3.9    181.        .345          .         10.2        2.16    
PERT   6.9    1.97       -9.61        51.6        5.35        3.09    
PIE1   4.9    .           .           39.2        4.00        2.61    
REYK   2.0    76.5       -.127        58.0        6.00        2.25    
SANT*  4.0    .104e+04    .570        39.4        5.31        1.32    
SHAO   6.0    89.3        .224        43.8        4.18        2.81    
STJO   2.0    3.83        .452        30.5        4.00        2.64    
TID2*  6.9    18.8        .124        40.7        6.05        2.94    
USUD   1.0    1.61        .389        40.0        4.00        2.98    
WTZR*  7.0    26.6        .491        64.6        4.60        2.58    
YAR1*  7.0    12.3        .549          .         4.31        2.19    
YELL*  7.0    47.1        .346        42.8        4.60        1.72    
PRN01  7.0    80.7        15.8        57.6        5.87        2.23    
PRN02  7.0    80.6       -346.        56.8        5.46        2.35    
PRN03  7.0    80.4        110.        59.5        5.72        2.29    
PRN04  7.0    81.9        18.7        54.9        5.30        2.25    
PRN05  7.0    84.0        88.2        50.0        5.59        2.89    
PRN06  7.0    82.9        4.53        50.9        5.15        2.58    
PRN07  7.0    79.7        741.        53.4        5.15        2.49    
PRN09  7.0    79.7       -31.4        57.9        5.73        2.26    
PRN10  7.0    81.6        5.66        51.0        5.58        2.22    
PRN14  7.0    81.3        17.9        51.2        5.31        2.19    
PRN15  7.0    3.33        405.        59.1        5.76        2.10    
PRN16  7.0    80.4        4.82        52.0        5.30        2.31    
PRN17  7.0    81.6       -143.        55.2        5.59        2.29    
PRN18  7.0    81.5        24.3        51.7        5.00        2.51    
PRN19  7.0    81.7        248.        55.8        5.45        2.12    
PRN21  7.0    80.0        40.3        58.0        5.77        2.28    
PRN22  7.0    81.6        378.        53.9        5.59        2.28    
PRN23  7.0    78.6        11.0        54.6        6.15        2.28    
PRN24  7.0    82.7        226.        57.2        5.74        2.33    
PRN25  7.0    80.5       -4.92        52.0        5.74        2.06    
PRN26  7.0    80.9       -139.        56.2        5.73        2.30    
PRN27  7.0    81.5        22.4        55.4        5.30        2.20    
PRN29  7.0    80.1        8.06        50.7        5.30        2.27    
PRN30  7.0    81.5       -42.5        52.9        5.60        2.76    
PRN31  7.0    83.0        266.        55.2        5.30        2.39    
_______________________
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
      97  3 16   97  3 17   97  3 18   97  3 19   97  3 20   97  3 21   97  3 22
prn   3d rss (cm)
  1     555        524        342        381        446        409        525   
  2     450        236        350        260        973        457        167   
  3     492        187        313        337        305        309        240   
  4     737        536        613        463        374        360        556   
  5     312        234        219        202        239        401        338   
  6     642        710        642        664        558        556        565   
  7     358        298        245        431        285        433        490   
  9     199        318        257        326        296        194        229   
 10     191        302        621        451        479        397        262   
 14     817       1296        587        283        410        169        238   
 15     180        182        193        308        281        190        182   
 16     495        760        391        567        340       1094        616   
 17     311        327        324        566        552        252        459   
 18     410       1554        329        514        420        376        413   
 19    2797        784        250        148        413       1173        386   
 21     460        215        451        687        384        160        235   
 22     560        593        410        715        835        207        512   
 23     738        608        489        385        532        798        519   
 24     264        234        226        261        270        287        288   
 25     482        193        174        286        216        348        324   
 26     447        407        374        241        187        325        326   
 27     688        445        410        317        461        379        330   
 29     433        746        491        807        370        484        549   
 30     797        362        274        191        196        225        280   
 31     294        393        382        452        368        374        224   
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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