Subject: [IGSREPORT-2841] Wk 0862 JPL Analysis Report
From: D C Jefferson
Date: Mon, 29 Jul 1996 14:02:00 PDT

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IGS Electronic Report    Mon Jul 29 14:02:00 PDT 1996      Message Number 2841
******************************************************************************

Author: D C Jefferson
Subject: Wk 0862 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0862 (DAYS 196-202, DATES 1996 Jul 14 - Jul 20)
******************************************************************************

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/0862.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08627.sum         This text file.
jpl08627.erp         Earth rotation parameters for GPS week 862.
jpl08627.snx         Ground station coordinates for GPS week 862, SINEX format.
jpl0862[0-6].sp3     GPS ephemerides for GPS week 862, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 14.0 cm

According to the file nanu1996.mes obtained from the IGS CBIS, PRN14 was
unusable on day 198 for maintenance/repositioning.  Data from this satellite
did not meet our convergence criteria on this nor the previous day (197),
and were excluded from the analyses of both days.

Also, PRN16 appears to be poorly modeled on days 199 and 200.  We have
removed this satellite from these days' orbit products, namely jpl08623.sp3
and jpl08624.sp3.

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 DGAR, GRAZ, KRAK, LPGS, USC1, WETT, WINT excluded day 196.
WARNING: Data from DGAR, KELY, WETT excluded day 197.
WARNING: Data from DGAR, WETT excluded day 198.
WARNING: Data from HKLO excluded day 199.
WARNING: Data from DGAR, GUAM excluded day 200.
WARNING: Data from DGAR excluded day 201.
WARNING: Data from DGAR, WTZR excluded day 202.

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 862 (1996 Jul 14 - Jul 20)
     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
50278.50  22658  51167   174082  1286    3    4     8      8 37 12 25  329 -277 
50279.50  22933  50844   172792  1294    3    4     8      8 37 12 24  317 -255 
50280.50  23224  50530   171498  1294    3    4     8      8 37 12 24  303 -267 
50281.50  23440  50240   170173  1355    3    4     8      8 37 12 25  264 -324 
50282.50  23672  49971   168825  1342    3    4     9      9 37 12 25  233 -317 
50283.50  23880  49664   167503  1301    4    5     9      9 37  9 25  193 -279 
50284.50  24007  49389   166230  1245    3    4     8      8 37 12 25  181 -274 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 862:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 862 (1996 Jul 14 - Jul 20)
      96  7 14   96  7 15   96  7 16   96  7 17   96  7 18   96  7 19   96  7 20
prn   3d rss (m)
  1       0.17       0.13       0.08       0.11       0.13       0.17       0.19
  2       0.07       0.11       0.07       0.12       0.11       0.19       0.12
  3       0.10       0.14       0.13       0.13       0.17       0.12       0.11
  4       0.10       0.08       0.12       0.19       0.19       0.14       0.09
  5       0.25       0.22       0.17       0.20       0.21       0.20       0.14
  6       0.15       0.22       0.21       0.30       0.35       0.20       0.15
  7       0.09       0.13       0.15       0.16       0.31       0.23       0.26
  9       0.15       0.10       0.09       0.12       0.18       0.10       0.06
 14       0.2                              0.2        0.16       0.10       0.22
 15       0.09       0.06       0.13       0.17       0.19       0.07       0.14
 16       0.12       0.09       0.34       0.70       0.47       0.42       0.13
 17       0.13       0.09       0.12       0.13       0.21       0.12       0.16
 18       0.10       0.10       0.12       0.12       0.14       0.26       0.19
 19       0.07       0.06       0.09       0.08       0.11       0.18       0.12
 21       0.16       0.14       0.10       0.18       0.21       0.22       0.12
 22       0.10       0.15       0.15       0.17       0.12       0.16       0.14
 23       0.12       0.07       0.09       0.10       0.21       0.26       0.16
 24       0.13       0.08       0.12       0.21       0.17       0.32       0.23
 25       0.14       0.17       0.20       0.13       0.17       0.15       0.16
 26       0.07       0.07       0.10       0.12       0.24       0.09       0.07
 27       0.05       0.07       0.07       0.10       0.18       0.21       0.20
 28       0.15       0.15       0.10       0.11       0.14       0.14       0.14
 29       0.11       0.13       0.15       0.22       0.13       0.07       0.21
 31       0.11       0.14       0.16       0.12       0.15       0.12       0.11
_______________________
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 862 (1996 Jul 14 - Jul 20)
 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   1.0    4.95        .166        41.0        4.00        3.19    
ALGO*  6.6    .516e-01   -.910e-01    50.1        5.22        3.01    
AREQ   3.9    98.4       -1.39        38.0        4.52        2.54    
ASC1   6.9    93.0       -1.47        77.2        5.87        1.65    
AUCK   2.0    91.3       -1.54        40.5        4.53        2.68    
BOGT   6.8    432.       -1.45        50.9        6.47        2.20    
BRMU   1.0    108.       -1.56        41.0        8.00        2.74    
BRUS   1.0    .342        2.05        61.0        4.00        2.62    
CAS1   4.9    13.9        655.        35.0        5.00        2.08    
CHAT   4.7    111.       -1.44        78.3        4.80        2.89    
CHUR   2.0    19.8        20.8        39.5        5.52        1.86    
COCO   4.8    96.0       -.303e+04    31.7        5.29        3.05    
CRO1   1.0    146.       -1.56        43.0        6.00        2.21    
DRAO   1.0    .564       -.315        34.0        4.00        3.17    
EISL   6.9    .706e+07   -.145e+05    40.2        6.02        2.87    
FAIR*  7.0    21.3       -1.44        43.3        5.03        2.50    
FORT   6.9    85.6       -2.45        49.7        6.88        3.15    
GOL2*  7.0    58.5       -1.04        46.2        5.45        3.05    
GUAM   6.0    102.       -1.45        52.9        7.87        2.55    
HART*  5.9    6.01       -1.86        42.7        4.19        3.00    
HKLO   2.0    .289e+06    503.        45.5        6.00        2.53    
IRKT   4.9    8.33       -1.49        66.4        5.20        2.93    
JOZE    .9    59.9        808.        59.0        6.00        3.05    
JPLM   4.0    91.4        23.2        34.0        5.05        2.94    
KERG   5.9    138.       -8.59          .         4.84        2.73    
KIRU   3.9    54.7       -1.36        54.3        6.78        2.39    
KIT3   3.9    155.       -1.52        57.7        5.00        2.92    
KOKB*  6.9    .511e+04   -26.4        74.6        5.49        3.12    
KOSG*  6.9    1.51        3.32        45.0        4.04        2.32    
KOUR    .9    14.9        59.4          .         11.0        .947    
KWJ1   5.9    93.0       -1.45        50.3        6.88        1.86    
LPGS    .9    .130e+04   -1.53          .         5.00        2.46    
MAC1   4.8    74.5       -1.44        31.2        3.65        2.26    
MADR*  6.7    8.31       -1.03          .         4.87        2.12    
MALI   4.9    52.0       -41.4          .         7.81        2.44    
MAS1   6.9    26.3       -7.30        46.5        4.37        2.43    
MCM4   6.9    128.       -1.47        32.7        4.16        2.06    
METS   2.0    .476       -2.21        51.5        3.53        1.64    
NLIB   1.0    .           .           55.0        6.00        2.77    
NOTO   4.9    .209       -2.73        41.3        4.82        2.89    
PAMA   4.0    167.       -1.43          .         9.47        1.95    
PERT   6.9    53.3       -2.18        52.8        6.51        2.60    
PLTC   1.0    .289e+06    502.        55.0        7.00        2.58    
POL2   2.9    86.8       -1.39        52.1        4.68        2.79    
RCM5   6.9    98.9       -1.47        50.2        8.32        2.22    
REYK   5.7    80.7       -1.45        56.5        6.39        2.02    
SANT*  1.0    .795e-01   -1.49          .         5.00        2.41    
STJO   4.8    131.       -2.23        38.9        5.07        2.49    
TAEJ   1.9    .287e+06    504.        45.5        5.50        2.94    
THU1   6.9    73.7       -1.47        48.6        5.46        2.74    
TID2*  6.9    20.2       -1.22        38.6        5.31        3.18    
TROM*  6.8    .134e+06    40.2          .         4.73        1.54    
USUD   5.0    110.       -1.15        35.8        6.24        2.98    
VILL   1.0    886.        2.52        60.0        5.00        1.48    
WSMN   1.0    .288e+06    492.        65.0        7.00        3.12    
WTZR*  5.1    70.4       -1.43        62.5        4.58        2.47    
YAR1*  5.9    47.1       -1.65          .         5.98        2.40    
YELL*  5.9    87.9       -1.70        49.9        5.22        2.01    
PRN01  7.0    83.7        146.        49.4        5.58        2.18    
PRN02  7.0    82.4       -275.        51.5        5.46        2.53    
PRN03  7.0    81.8        31.0        49.7        5.87        2.61    
PRN04  6.9    80.8        33.7        47.5        5.73        2.26    
PRN05  6.9    82.0        46.9        50.7        5.59        2.18    
PRN06  6.9    81.8        .230        49.0        6.15        2.63    
PRN07  7.0    82.0        722.        50.8        5.61        2.24    
PRN09  7.0    80.5       -5.12        49.3        5.59        2.25    
PRN14  4.8    82.5        12.4        49.8        5.82        2.35    
PRN15  6.9    3.99        319.        54.7        5.61        2.41    
PRN16  6.6    79.4        17.6        50.9        6.54        2.38    
PRN17  6.9    83.3       -122.        51.1        5.87        2.62    
PRN18  7.0    83.1        5.60        48.0        5.75        2.50    
PRN19  6.9    81.3        457.        47.6        5.60        2.56    
PRN21  6.8    83.0       -27.2        48.6        5.87        2.38    
PRN22  7.0    80.3        322.        45.3        5.45        2.44    
PRN23  6.8    81.8        .281e-01    51.6        6.48        2.43    
PRN24  6.7    82.5        131.        52.0        5.59        2.47    
PRN25  7.0    79.2       -3.95        46.2        5.76        2.36    
PRN26  7.0    81.9       -5.76        49.3        5.89        2.75    
PRN27  6.9    83.3        34.1        48.0        5.45        2.62    
PRN28  7.0    1.83        93.0        57.7        5.00        2.81    
PRN29  7.0    80.6        10.9        45.9        5.61        2.66    
PRN31  7.0    81.0        598.        50.5        5.59        2.35    
_______________________
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  7 14   96  7 15   96  7 16   96  7 17   96  7 18   96  7 19   96  7 20
prn   3d rss (m)
  1       6.1        5.0        2.7        5.1        4.1        3.7        4.2 
  2       5.1        3.3        3.3        4.1        3.9        4.3        3.5 
  3       3.9        4.1        4.8        4.6        4.2        4.5        4.0 
  4       5.6        5.5        5.5        4.6        5.2        4.8        4.6 
  5       6.9        6.4        5.7        5.3        5.5        5.3        5.3 
  6       6.0        5.0        5.0        4.5        5.0        5.9        4.5 
  7       4.2        3.9        4.7        3.9        4.5        4.3        3.7 
  9       3.9        4.4        2.8        2.9        2.4        3.9        2.8 
 14      17.6                              5.6        8.4        6.0        3.3 
 15       3.2        3.7        4.0        2.7        2.9        3.1        3.9 
 16       9.8        9.0        8.7       15.7       19.0       10.2       11.3 
 17       3.9        4.0        3.6        3.3        3.4        4.0        3.5 
 18       4.5        5.2        4.1        4.2        4.1        4.7        3.4 
 19       2.5        2.8        3.1        2.4        3.5        1.7        2.4 
 21       6.8        8.3        7.0        6.0        2.6        3.1        3.7 
 22       6.7        6.0        5.9        6.2        5.9        6.3        6.3 
 23       4.8        8.4        9.3       10.5        9.6        9.9        5.1 
 24       5.8        5.6        4.5        4.5        5.5        4.4        4.1 
 25       3.8        3.2        3.8        3.1        2.5        3.1        2.7 
 26       2.5        2.0        2.8        2.2        2.6        2.1        2.3 
 27       5.6        5.1        4.7        3.7        3.2        4.2        4.9 
 28       2.8        2.5        2.8        2.7        2.6        2.6        3.4 
 29       4.1        4.6        4.9        4.8        4.5        3.6        4.0 
 31       2.7        3.0        3.0        3.1        3.4        3.0        3.1 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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