Subject: [IGSREPORT-2416] Wk 0839 JPL Analysis Report
From: D C Jefferson
Date: Fri, 16 Feb 1996 15:32:16 PST

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IGS Electronic Report    Fri Feb 16 15:32:16 PST 1996      Message Number 2416
******************************************************************************

Author: D C Jefferson
Subject: Wk 0839 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0839 (DAYS 35-41, DATES 1996 Feb 04 - Feb 10)
******************************************************************************

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/0839.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08397.sum         This text file.
jpl08397.erp         Earth rotation parameters for GPS week 839.
jpl08397.snx         Ground station coordinates for GPS week 839, SINEX format.
jpl0839[0-6].sp3     GPS ephemerides for GPS week 839, sp3 format.
______________________________________________________________________________

Mean Orbit Repeatability (see table below): 17.2 cm

According to the file nanu1996.mes obtained from the IGS CBIS, PRN16 was
unusable on day 037 for an indefinite period.  Data from this satellite
did not meet our convergence criteria on this or the following day (038),
and were excluded from both the analyses of both days.  Also, we continue
to exclude data from PRN12.

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 for days 035, 038, and 039.
WARNING: Data from KRAK, MAC1, MOLA excluded day 035.
WARNING: Data from CHAT, CHIL, KRAK, PERT excluded day 036.
WARNING: Data from PRN16, CHAT, CHIL, HOLC, KRAK, LAMA, MATE, PERT, SIO3, USC1           excluded day 037.
WARNING: Data from PRN16, CHAT, CHIL, LAMA, LONG, MATE, PERT, SIO3, TROM, YAR1,          ZWEN excluded day 038.
WARNING: Data from HERS, SNI1, USC1, WETT, ZWEN excluded day 039.
WARNING: Data from KELY, KRAK, LAMA, ZWEN excluded day 040.
WARNING: Data from CHIL, KELY, LAMA, TROM excluded day 041.

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 839 (1996 Feb 04 - Feb 10)
     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
50117.50 -22289  30405   494394  1937    4    5    11     11 37 11 24  -50  379 
50118.50 -22325  30767   492462  1928    4    5    11     11 37 12 24  -34  354 
50119.50 -22371  31135   490526  1944    5    7    12     12 37  8 23  -69  381 
50120.50 -22438  31505   488545  2018    5    6    12     12 37 10 23  -30  359 
50121.50 -22517  31859   486528  2015    4    5    11     11 37 11 24  -57  363 
50122.50 -22597  32136   484512  2018    4    5    11     11 37 12 24  -12  311 
50123.50 -22556  32390   482487  2031    4    5    12     12 37 11 24   31  317 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 839:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 839 (1996 Feb 04 - Feb 10)
      96  2  4   96  2  5   96  2  6   96  2  7   96  2  8   96  2  9   96  2 10
prn   3d rss (m)
  1       0.17       0.16       0.12       0.09       0.11       0.10       0.16
  2       0.11       0.16       0.14       0.09       0.08       0.10       0.11
  4       0.15       0.35       0.23       0.10       0.20       0.14       0.11
  5       0.13       0.09       0.18       0.18       0.22       0.12       0.11
  6       0.11       0.17       0.40       0.26       0.10       0.16       0.13
  7       0.11       0.13       0.29       0.29       0.20       0.14       0.11
  9       0.23       0.16       0.07       0.08       0.10       0.12       0.11
 14       0.16       0.10       0.13       0.13       0.17       0.21       0.09
 15       0.26       0.25       0.16       0.20       0.28       0.27       0.23
 16       0.23       0.2                              0.2        0.16       0.12
 17       0.11       0.11       0.12       0.13       0.10       0.13       0.10
 18       0.08       0.12       0.14       0.12       0.17       0.22       0.09
 19       0.13       0.10       0.12       0.15       0.12       0.18       0.12
 20       0.07       0.07       0.12       0.13       0.14       0.09       0.07
 21       0.19       0.18       0.10       0.13       0.23       0.20       0.13
 22       0.11       0.16       0.23       0.21       0.17       0.22       0.18
 23       0.29       0.42       0.39       0.29       0.42       0.51       0.56
 24       0.25       0.28       0.14       0.19       0.33       0.19       0.11
 25       0.23       0.21       0.17       0.23       0.29       0.22       0.21
 26       0.21       0.17       0.10       0.19       0.18       0.14       0.11
 27       0.10       0.15       0.16       0.16       0.12       0.20       0.13
 28       0.11       0.24       0.12       0.25       0.15       0.20       0.11
 29       0.15       0.12       0.20       0.21       0.18       0.15       0.14
 31       0.14       0.25       0.16       0.14       0.19       0.24       0.27
_______________________
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 839 (1996 Feb 04 - Feb 10)
 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)
 |     |      |           |           |           |           |
 |___  |__    |_______    |_______    |___        |___        |__
ALBH   6.9    .903e+04    28.5        40.0        3.78        2.51    
ALGO*  6.6    .145        1.31        39.3        4.32        2.84    
AREQ   5.9    86.3        .283e-01    41.2        5.00        2.52    
AUCK   3.0    83.7       -.160        39.7        6.04        2.93    
BRMU   6.9    119.        .128        37.0        5.31        2.89    
BRUS   4.9    .357        5.07        58.4        4.22        2.69    
CAT1   1.0    183.       -.644        35.0        5.00        2.86    
CHAT   3.8    119.        .332        82.6        5.52        2.55    
CICE   1.0    86.9       -.591        32.0        4.00        2.75    
CRO1   6.9    130.        .131        42.7        6.65        2.08    
EISL   5.7    .706e+07   -.133e+05    39.4        7.52        2.55    
FAI2   6.9    .155        .177e-01    48.9        4.35        2.44    
FAIR*  6.9    .145       -8.94          .         4.00        2.22    
FORT   6.9    .163       -.779        50.8        6.87        2.61    
GOL2   6.9    .635e+04    16.5        49.4        4.00        2.86    
GOLD*  5.5    385.        2.36          .         2.71        2.19    
GRAS   1.0    76.9        .674        32.0        4.00        2.89    
GUAM   6.8    104.        .125        47.1        9.51        2.53    
HART*  5.6    31.9        2.20          .         6.68        1.96    
IISC   5.7    74.5        .256        65.4        4.86        2.22    
IRKT   3.9    .530       -.164        47.2        5.00        2.96    
JPLM   1.0    108.        .115e+04    28.0        4.00        3.59    
KERG   6.8    178.       -642.          .         5.16        2.23    
KIRU   6.9    5.00        12.1        50.6        8.02        1.91    
KIT3   5.6    115.        .240        59.5        4.69        3.05    
KOKB*  6.9    35.3        .111        45.7        6.07        2.80    
LPGS   5.7    .474e+04    1.33        178.        5.19        1.82    
MADR*  5.4    .710       -.950          .         4.51        2.17    
MALI   1.0    .271e+07    .456e+04      .         7.00        2.13    
MDO1   1.0    1.64       -1.59        33.0        4.00        2.96    
NOTO   2.9    .103e+05    46.9        34.0        4.71        2.98    
OHIG   4.9    .310e+05   -3.80        59.3        4.34        .993    
ONSA    .9    .292       -1.89        38.0        4.00        2.25    
PAMA   5.9    930.       -.493e-01      .         10.9        2.29    
PERT   3.9    1.85       -4.38        49.0        4.27        3.23    
PIE1   3.7    .           .           38.0        4.25        2.60    
SANT*  6.9    1.12        .791          .         5.00        2.09    
SHAO   5.8    99.1        .174e-01    42.5        3.84        2.57    
STJO   6.9    164.        .887        40.0        4.20        2.82    
THU1   6.9    70.2        .133        46.3        4.59        2.68    
TID2   6.9    .159        .160        40.4        4.75        3.16    
TIDB*  5.5    .175        2.07          .         4.84        2.81    
TMGO   1.0    84.5       -.570        39.0        4.00        2.56    
TROM*  4.9    3.18        140.          .         4.22        1.84    
TSKB   2.0    1.06       -.121e+04    46.5        4.00        3.09    
USUD   4.9    2.54        1.37        35.8        4.00        2.88    
VILL   4.9    2.57        4.15        63.1        4.43        2.73    
WETT*  5.9    .149        2.68          .         5.78        2.26    
YAR1*  4.6    74.0        3.71          .         4.16        2.57    
YELL*  6.9    419.        .490        42.9        4.02        2.16    
ZWEN   3.9    .582e+05    2.37        55.9        4.00        2.50    
PRN01  6.9    83.0        519.        46.3        5.00        2.55    
PRN02  6.9    79.1       -230.        46.8        5.30        2.78    
PRN04  6.9    81.6        10.2        45.3        5.59        2.17    
PRN05  6.9    83.1        23.6        45.5        5.44        2.45    
PRN06  6.9    81.5        6.15        47.3        5.29        2.45    
PRN07  6.9    79.2        716.        48.3        5.59        2.25    
PRN09  6.9    81.1       -10.5        47.9        5.16        2.10    
PRN14  6.6    82.3        12.7        48.0        5.45        2.35    
PRN15  6.9    2.96        269.        50.5        5.15        2.51    
PRN16  4.6    80.9       -176.        56.9        6.02        2.04    
PRN17  6.9    81.5       -106.        48.1        5.16        2.32    
PRN18  6.9    80.9       -6.30        49.3        5.44        2.45    
PRN19  6.9    82.7        358.        45.9        5.00        2.56    
PRN20  6.9    83.6        3.84        46.5        5.00        2.28    
PRN21  6.7    80.8       -13.1        48.8        5.31        2.59    
PRN22  6.5    80.6        284.        48.2        5.15        2.39    
PRN23  6.6    82.0        6.82        45.5        5.44        2.25    
PRN24  6.9    79.8        139.        49.2        5.87        2.05    
PRN25  6.9    80.3       -.614        46.3        5.30        2.30    
PRN26  6.9    80.8       -147.        48.2        5.59        2.60    
PRN27  6.9    80.3        18.3        43.7        5.00        2.52    
PRN28  6.9    2.27        64.4        55.3        5.00        2.72    
PRN29  6.9    82.9        6.40        45.5        5.00        2.45    
PRN31  6.9    81.1        292.        47.4        5.15        2.75    
_______________________
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
      96  2  4   96  2  5   96  2  6   96  2  7   96  2  8   96  2  9   96  2 10
prn   3d rss (m)
  1       5.0        3.3        4.3        4.0        4.9        3.5        3.9 
  2       7.8        8.6        7.7        5.9        6.2        6.1        5.7 
  4       2.9        2.4        2.5        2.3        2.0        3.4        3.2 
  5       7.2        7.0        6.2        4.9        6.0        5.3        7.4 
  6       4.7        5.2        5.3        5.4        6.5        5.1        5.7 
  7       4.9        4.0        4.5        4.9        3.4        4.0        3.9 
  9       4.5        3.2        4.6        4.1        3.0        2.9        2.9 
 14       8.8        6.8        8.4        6.6        5.4        6.6        5.2 
 15       3.5        4.0        3.4        3.6        5.2        4.5        4.9 
 16       9.2        6.1                             16.4        6.9        4.2 
 17       4.4        4.4        4.2        3.9        4.2        4.1        3.8 
 18       3.5        3.6        3.2        4.0        5.7        3.9        5.2 
 19       4.6        4.9        4.7        3.4        3.0        3.2        3.2 
 20       3.6        4.3        4.4        6.7        2.7        3.3        5.9 
 21       9.2       10.9        9.8        8.8        9.4        7.3        6.1 
 22       7.3       11.3        4.4        3.6        4.8        4.3        4.6 
 23      19.4       14.5       20.6       16.8       22.9       24.4       19.0 
 24       3.6        3.4        3.5        4.0        5.5        4.7        3.2 
 25       5.1        3.5        3.6        4.5        2.8        3.2        3.3 
 26       2.9        2.7        2.8        3.8        3.3        4.1        3.1 
 27       4.4        5.0        3.2        4.4        3.3        4.1        3.9 
 28       4.0        3.9        4.6        4.3        4.0        4.0        3.6 
 29       3.2        3.0        3.4        3.9        3.8        4.1        3.7 
 31       2.8        2.4        2.5        2.4        2.5        2.9        3.0 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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