Subject: [IGSREPORT-3268] Wk 0882 JPL Analysis Report
From: D C Jefferson
Date: Fri, 13 Dec 1996 15:37:29 PST

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IGS Electronic Report    Fri Dec 13 15:37:29 PST 1996      Message Number 3268
******************************************************************************

Author: D C Jefferson
Subject: Wk 0882 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0882 (DAYS 336-342, DATES 1996 Dec 01 - Dec 07)
******************************************************************************

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/0882.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08827.sum         This text file.
jpl08827.erp         Earth rotation parameters for GPS week 882.
jpl08827.snx         Ground station coordinates for GPS week 882, SINEX format.
jpl0882[0-6].sp3     GPS ephemerides for GPS week 882, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 18.0 cm
                           (excluding deweighted/anomalous satellites)

We continue to deweight data from PRN10 this week.  Additionally, orbit
repeatability statistics for PRN29 are atypically high for days 336 and 337,
indicative of some mismodeling.  We have chosen to exclude this satellite
from the corresponding orbit products (jpl08820.sp3 and jpl08821.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: PIE1 (not ALGO) used as reference clock day 337.
WARNING: Data from PRN10 deweighted for the entire GPS week 882.
WARNING: Data from CSN1, KRAK, NYAL, ONSA, WTZR excluded day 336.
WARNING: Data from BRAZ, CSN1, ONSA excluded day 337.
WARNING: Data from CHUR, ONSA excluded day 338.
WARNING: Data from BRAN, CASA, HOLC excluded day 340.
WARNING: Data from BRAN, CASA, COCO, WETT excluded day 341.
WARNING: Data from BRAN, CASA excluded day 342.

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 882 (1996 Dec 01 - Dec 07)
     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
50418.50   8428   9272   -57962  1759    3    4     8      8 37 12 25 -356  -60 
50419.50   8075   9136   -59716  1749    3    3     8      8 37 13 25 -356  -89 
50420.50   7699   9070   -61429  1677    3    3     8      8 37 13 25 -388  -24 
50421.50   7311   9054   -63138  1740    3    3     8      8 37 13 25 -395  -77 
50422.50   6897   8986   -64916  1817    3    3     8      8 37 13 25 -375  -70 
50423.50   6470   8894   -66663  1677    3    3     8      8 37 13 25 -407  -72 
50424.50   6059   8807   -68332  1660    3    3     8      8 37 13 25 -355  -86 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 882:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 882 (1996 Dec 01 - Dec 07)
      96 12  1   96 12  2   96 12  3   96 12  4   96 12  5   96 12  6   96 12  7
prn   3d rss (m)
  1       0.39       0.42       0.28       0.18       0.19       0.17       0.27
  2       0.24       0.11       0.16       0.10       0.12       0.15       0.12
  3       0.28       0.19       0.30       0.24       0.21       0.26       0.24
  4       0.19       0.21       0.21       0.16       0.12       0.16       0.09
  5       0.43       0.43       0.30       0.33       0.33       0.28       0.18
  6       0.32       0.33       0.32       0.23       0.21       0.19       0.12
  7       0.25       0.26       0.20       0.23       0.18       0.14       0.07
  9       0.17       0.28       0.17       0.13       0.27       0.17       0.10
 10       1.94       1.74       1.84       2.19       1.35       1.67       2.09
 14       0.55       0.75       0.29       0.20       0.20       0.32       0.30
 15       0.22       0.39       0.17       0.17       0.18       0.14       0.13
 16       0.21       0.24       0.10       0.18       0.14       0.15       0.18
 17       0.19       0.12       0.15       0.13       0.18       0.15       0.10
 18       0.15       0.10       0.14       0.28       0.12       0.18       0.17
 19       0.16       0.23       0.23       0.10       0.14       0.45       0.33
 21       0.15       0.17       0.13       0.14       0.12       0.16       0.11
 22       0.24       0.28       0.15       0.14       0.17       0.17       0.19
 23       0.19       0.29       0.23       0.25       0.25       0.17       0.18
 24       0.14       0.21       0.20       0.23       0.13       0.16       0.12
 25       0.19       0.25       0.21       0.23       0.16       0.18       0.19
 26       0.16       0.11       0.17       0.28       0.17       0.18       0.20
 27       0.07       0.10       0.12       0.07       0.09       0.14       0.12
 29       1.58       2.06       0.12       0.10       0.20       0.25       0.26
 30       0.83       1.18       1.18       1.25       1.12       0.64       0.60
 31       0.23       0.12       0.17       0.19       0.17       0.19       0.17
_______________________
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 882 (1996 Dec 01 - Dec 07)
 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*  6.7    .127        .279        43.7        4.97        2.99    
ASC1   6.0    80.7       -.273        73.5        5.36        1.67    
AUCK   1.0    86.4        .328e-01    40.0        4.00        2.45    
BAHR   6.9    .453        265.        44.9        4.30        3.69    
BRUS   7.0    .327        13.8        59.6        4.31        2.62    
CAS1    .9    12.6        733.        38.0        5.00        2.00    
CHAT   5.9    102.       -.326        79.1        5.34        2.72    
CRO1   6.9    491.       -.279        45.4        5.50        2.15    
DGAR   7.0    91.8       -.273        65.4        6.30        1.63    
EISL   6.9    304.       -.301        49.4        6.46        2.78    
FAIR*  7.0    237.       -2.38        33.6        4.80        2.41    
FLIN   3.0    87.3       -.306        37.9        4.76        3.16    
FORT   3.9    .147       -.387        51.8        6.54        3.09    
GOL2*  7.0    .138       -.152        50.1        5.19        2.93    
HART*  7.0    44.7        1.06        46.7        6.45        2.87    
HKLO   1.0    .289e+06    503.        50.0        6.00        3.03    
IISC   5.7    128.       -.273        68.4        5.72        2.31    
IRKT   3.5    .184        1.35        45.3        5.00        2.74    
KERG   6.8    492.        4.37          .         5.59        2.56    
KIT3   7.0    164.       -.282        49.5        4.16        2.98    
KOKB*  7.0    93.7        .174        59.7        7.02        2.73    
KOSG*  7.0    307.       -1.92        40.1        4.11        2.23    
KWJ1   7.0    85.1       -.276        61.2        8.83        1.68    
LHAS   5.5    .361e+05   -2.99        68.2        5.32        2.16    
MADR*  6.9    .231       -8.92          .         4.75        2.41    
MALI   5.9    30.6       -385.          .         8.50        2.08    
MAS1   7.0    .104e+05   -44.9        40.1        6.02        2.57    
MCM4   7.0    97.0       -.271        47.8        5.73        1.65    
MDVO    .9    .756e-01    537.        69.0        6.00        2.43    
MKEA   5.0    .117       -.474        42.5        5.85        2.57    
MOIN   5.9    90.6       -.324        62.0        7.38        1.69    
OHIG   5.4    .916e+06   -58.3        51.6        5.00        1.75    
PAMA   4.8    184.       -.263          .         10.7        2.11    
PERT   7.0    2.64       -3.93        51.4        5.03        2.92    
PIE1   1.0    .           .           35.0        4.00        2.55    
REYK   6.7    84.8       -.279        61.3        6.04        2.01    
SANT*  6.8    .138e+04   -3.45        45.8        5.91        2.12    
SHAO   1.0    91.2       -.362        39.0        4.00        2.61    
STJO   1.0    37.7       -.281        34.0        4.00        2.36    
TAIW   1.0    110.       -.240          .         4.00        2.40    
THU1   7.0    71.0       -.269        41.1        5.59        2.50    
TID2*  7.0    .111        .617        39.6        6.18        2.85    
TROM*  6.7    5.01        61.4          .         4.49        1.71    
USUD   6.0    39.1        14.6        36.3        4.72        2.50    
WTZR*  5.9    .297       -.407e-01    56.9        4.90        2.58    
YAR1*  7.0    3.97       -.241          .         4.16        2.51    
YELL*  6.9    .106       -1.64        35.9        4.50        1.92    
PRN01  7.0    79.8        8.11        51.3        5.45        2.54    
PRN02  6.8    80.5       -314.        56.4        5.45        2.46    
PRN03  7.0    81.1        76.9        51.5        5.45        2.57    
PRN04  6.8    80.2        .900        50.3        6.00        2.16    
PRN05  6.7    80.7        70.9        50.0        5.86        2.55    
PRN06  7.0    81.4        3.35        49.0        5.87        2.57    
PRN07  7.0    79.8        733.        53.9        5.59        2.32    
PRN09  7.0    79.5       -19.8        53.5        5.73        2.42    
PRN14  7.0    83.5        15.7        51.2        5.76        2.16    
PRN15  6.8    3.50        367.        56.3        5.86        2.21    
PRN16  7.0    81.8        34.7        54.2        5.88        2.56    
PRN17  6.6    81.5       -133.        53.4        5.15        2.19    
PRN18  7.0    79.0        17.3        47.8        5.74        2.74    
PRN19  7.0    81.7        212.        48.3        5.46        2.52    
PRN21  7.0    82.5        13.8        54.4        5.30        2.50    
PRN22  6.6    82.3        355.        49.8        5.75        2.44    
PRN23  7.0    81.5        6.64        51.6        5.87        2.47    
PRN24  6.8    79.9        344.        51.2        6.03        2.18    
PRN25  7.0    79.8       -4.56        47.3        5.87        2.16    
PRN26  7.0    82.7       -80.3        51.9        5.60        2.41    
PRN27  7.0    84.0        10.3        46.7        5.31        2.66    
PRN29  7.0    81.6        3.53        46.9        6.59        2.63    
PRN30  6.6    79.2       -17.5        53.0        6.73        2.43    
PRN31  7.0    81.5        94.8        53.0        5.45        2.64    
_______________________
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 12  1   96 12  2   96 12  3   96 12  4   96 12  5   96 12  6   96 12  7
prn   3d rss (m)
  1       4.4        4.6        4.9        4.6        3.7        4.3        3.7 
  2       5.1        6.4        6.2        6.3        7.9        6.3        5.8 
  3       3.9        3.3        3.4        4.0        3.0        3.5        2.9 
  4       5.1        5.4        7.7        9.3        9.0        8.5        8.8 
  5       7.0        7.8        6.0        7.1        9.0        8.7        7.4 
  6       6.7        5.7        4.6        5.6        5.5        5.9        5.0 
  7       4.0        4.4        4.4        4.9        4.8        5.0        4.9 
  9       4.7        3.8        3.9        3.8        4.6        4.0        3.8 
 10       5.5        4.8        5.3        6.9        4.4        4.3        4.9 
 14       4.3        4.5        5.0        6.2        5.9       10.4        3.6 
 15       2.1        3.1        3.7        4.1        6.5        6.0        4.6 
 16      12.0        2.0        2.5       18.4       14.0        4.8        6.4 
 17       4.0        3.8        4.2        4.1        2.8        3.8        4.3 
 18       4.7        3.7        2.9        3.8        3.0        3.3        2.6 
 19       7.1        3.6        9.4        4.1        4.6        3.3        9.0 
 21       5.9        5.3        2.3        2.5        3.6        3.4        3.6 
 22       5.7        7.7        8.2        7.4        8.5        7.9        6.3 
 23       5.5        4.9        4.4        5.1        5.4        4.0        4.3 
 24      12.2       12.4       12.1       12.6       15.6       17.3       15.1 
 25       7.0        5.4        5.1        6.2        5.6        6.3        5.1 
 26       4.2        3.4        2.0        3.7        4.8        4.1        3.0 
 27       7.6        7.5        6.5        7.1        7.3        7.3        8.2 
 29       2.4       13.6        2.5        2.8        3.7        3.6        1.7 
 30      19.4       21.5       23.1       11.0       32.2       30.8       18.8 
 31       2.5        2.4        2.4        2.9        3.8        3.3        2.5 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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