Subject: [IGSREPORT-2918] Wk 0866 JPL Analysis Report
From: D C Jefferson
Date: Mon, 26 Aug 1996 14:06:26 PDT

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IGS Electronic Report    Mon Aug 26 14:06:26 PDT 1996      Message Number 2918
******************************************************************************

Author: D C Jefferson
Subject: Wk 0866 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0866 (DAYS 224-230, DATES 1996 Aug 11 - Aug 17)
******************************************************************************

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/0866.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08667.sum         This text file.
jpl08667.erp         Earth rotation parameters for GPS week 866.
jpl08667.snx         Ground station coordinates for GPS week 866, SINEX format.
jpl0866[0-6].sp3     GPS ephemerides for GPS week 866, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 cm

STRATEGY UPDATE
---------------
Beginning this week, we include relativistic acceleration in the satellite
dynamics.  Relativistic effects in the measurement model have always been
included prior to this week.

GENERAL
-------
Data from the newly-launched PRN10 continues to appear mismodeled.  We have
excluded data from this satellite on days 224 and 226 only, and have excluded
its solution from our sp3 orbit products for the entire week.

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 PRN10, COCO, DGAR, KELY, WLPS excluded day 224.
WARNING: Data from CMBB, COCO, CRFP, DGAR, GOLD, STJO, WLPS excluded day 225.
WARNING: Data from PRN10, DGAR, KELY, KRAK, POTM, SANT, WLPS excluded day 226.
WARNING: Data from DGAR, KELY, PIN1, SANT, WLPS excluded day 227.
WARNING: Data from BAHR, DGAR, SANT, SHK1, SNI1 excluded day 228.
WARNING: Data from DAV1, DGAR, GOLD, MADR, TIDB excluded day 229.
WARNING: Data from BRUS, DGAR, MADR, STJO, TIDB, WETT excluded day 230.

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 866 (1996 Aug 11 - Aug 17)
     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
50306.50  27736  42142   138279  1150    3    3     7      7 37 13 24  202 -321 
50307.50  27907  41803   137121  1165    3    3     7      7 37 12 25  227 -328 
50308.50  28125  41451   135986  1105    3    3     7      7 37 12 24  207 -303 
50309.50  28354  41069   134853  1162    3    4     7      7 37 12 25  251 -334 
50310.50  28535  40735   133759  1026    3    4     8      8 37 10 25  269 -368 
50311.50  28708  40374   132710  1071    3    4     8      8 37  9 25  193 -373 
50312.50  28831  40027   131612  1125    4    4     7      7 37  8 25  174 -383 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 866:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 866 (1996 Aug 11 - Aug 17)
      96  8 11   96  8 12   96  8 13   96  8 14   96  8 15   96  8 16   96  8 17
prn   3d rss (m)
  1       0.32       0.20       0.17       0.14       0.16       0.20       0.26
  2       0.16       0.13       0.12       0.15       0.18       0.17       0.09
  3       0.25       0.27       0.33       0.29       0.38       0.28       0.30
  4       0.17       0.19       0.23       0.20       0.21       0.21       0.24
  5       0.09       0.07       0.15       0.11       0.15       0.10       0.17
  6       0.26       0.15       0.18       0.17       0.17       0.23       0.26
  7       0.13       0.13       0.19       0.28       0.21       0.20       0.23
  9       0.16       0.10       0.10       0.08       0.10       0.09       0.10
 10                                        1.6        1.23       1.31       1.01
 14       0.17       0.15       0.16       0.28       0.25       0.09       0.19
 15       0.15       0.12       0.13       0.32       0.21       0.13       0.14
 16       0.22       0.23       0.14       0.27       0.36       0.48       0.3 
 17       0.20       0.15       0.20       0.12       0.17       0.19       0.16
 18       0.11       0.11       0.13       0.13       0.30       0.22       0.21
 19       0.17       0.09       0.12       0.12       0.14       0.12       0.20
 21       0.31       0.23       0.19       0.15       0.14       0.13       0.21
 22       0.14       0.18       0.25       0.28       0.21       0.27       0.26
 23       0.12       0.10       0.11       0.07       0.13       0.13       0.13
 24       0.10       0.14       0.26       0.28       0.37       0.14       0.12
 25       0.14       0.19       0.12       0.24       0.35       0.14       0.08
 26       0.12       0.15       0.10       0.12       0.13       0.13       0.13
 27       0.16       0.14       0.13       0.29       0.24       0.17       0.12
 28       0.11       0.12       0.14       0.18       0.30       0.10       0.29
 29       0.18       0.10       0.15       0.20       0.21       0.16       0.16
 31       0.15       0.13       0.16       0.25       0.32       0.14       0.22
_______________________
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 866 (1996 Aug 11 - Aug 17)
 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   3.0    7.39        1.03        44.5        4.70        3.04    
ALGO*  6.8    .           .           49.3        5.09        2.97    
AREQ   5.9    92.3       -2.51        38.8        4.69        2.47    
ASC1   6.0    78.1       -2.51        74.9        5.52        1.69    
AUCK   1.0    88.2       -2.57        39.0        4.00        2.90    
BAHR   3.6    1.37        433.        58.0        5.50        3.39    
BRMU   2.9    107.       -2.52        38.0        6.67        2.61    
BRUS   1.0    .155        5.04        64.0        6.00        2.78    
CAS1   3.8    11.7        .133e+04    33.0        5.00        2.16    
CHAT   6.9    117.       -2.50        82.0        5.00        2.68    
CHUR   1.0    5.04        29.5        38.0        5.00        1.85    
COCO   3.8    145.       -.100e+04    31.2        6.67        2.75    
CRO1   6.9    166.       -2.49        44.3        5.89        1.97    
DAV1   3.0    9.99        .127e+04    31.0        5.35        1.58    
EISL   5.9    .716e+07   -.144e+05    39.0        6.54        2.80    
ENG1   5.5    .288e+06    509.        95.5        11.4        1.57    
FAIR*  7.0    62.7       -2.77        39.2        5.00        2.44    
FORT   4.9    153.       -2.96        48.5        6.03        3.26    
GOL2*  5.9    .930e-01   -2.61        46.2        6.40        3.22    
GUAM   7.0    101.       -2.50        64.0        7.65        2.33    
HART*  7.0    44.0        13.2        42.6        4.46        2.89    
HKLO   1.0    .289e+06    496.        47.0        7.00        2.84    
IISC   3.6    86.8       -2.45        68.3        5.74        2.56    
IRKT   4.0    .254       -2.58        61.6        5.27        2.89    
JPLM   1.0    100.        15.0        34.0        4.00        3.47    
KELY   2.7    81.2       -2.52        65.4        6.35        1.79    
KERG   7.0    169.       -14.2          .         5.16        2.40    
KIRU   3.0    .208e+04   -3.64        54.4        7.00        2.17    
KIT3   2.5    139.       -2.49        57.0        5.42        3.20    
KOKB*  3.8    71.6       -2.28        73.9        7.42        2.90    
KOSG*  6.9    1.05       -1.78        46.1        4.59        2.38    
KOUR   4.0    3.32        .400          .         8.51        2.27    
KWJ1   6.8    89.9       -2.49        47.7        7.80        1.90    
LPGS   2.7    .106e+05   -1.52        62.5        5.34        2.55    
MAC1    .6    72.7       -2.55          .         4.00        2.26    
MADR*  3.9    .493       -2.23          .         5.76        2.43    
MALI   6.0    78.2       -128.          .         8.04        2.55    
MAS1   6.0    37.5       -3.66        46.0        4.89        2.88    
MCM4   7.0    90.5       -2.49        35.8        4.46        1.85    
MDO1   2.0    1.30       -2.85        31.5        5.10        2.93    
MDVO   2.0    .452        801.        65.0        6.52        2.63    
NOTO   1.0    .794e-01   -4.01        40.0        6.00        2.99    
PAMA   4.8    154.       -2.52          .         9.00        2.36    
PERT   3.0    2.30       -5.60        51.7        5.05        2.83    
PLTC    .9    .288e+06    510.        56.0        6.00        2.77    
POL2   3.6    .107e+06    .139e+04    55.4        4.29        2.69    
RCM5   1.0    104.       -2.44        46.0        7.00        2.40    
REYK   3.9    82.2       -2.50        56.8        6.00        2.24    
SANT*   .9    .562e+07    .364e+04    37.0        5.00        2.29    
SHAO   4.0    114.       -2.50          .         6.56        2.40    
STJO   3.5    9.42       -2.42        33.9        4.74        2.65    
THU1   5.0    76.8       -2.51        51.6        6.00        2.73    
TID2*  7.0    .143       -2.98        38.4        5.30        2.74    
TROM*  3.9    3.00        43.4          .         4.80        2.00    
TSKB   4.0    158.       -1.96        49.0        6.56        3.14    
USUD   3.0    1.69       -2.13        35.3        5.69        2.71    
VILL   2.0    632.       -2.48        67.0        5.00        2.72    
WTZR*  5.8    52.0       -2.24        62.0        5.19        2.66    
WUHN   2.9    .116e+07   -.235e+04    44.3        5.68        2.70    
YAR1*  7.0    3.59       -3.70          .         5.33        2.50    
YELL*  7.0    .207       -3.21        55.6        5.16        1.97    
PRN01  7.0    85.1        154.        52.6        5.86        2.57    
PRN02  7.0    82.2       -284.        57.0        6.15        2.44    
PRN03  6.8    79.6        39.0        54.3        6.00        2.46    
PRN04  7.0    82.3        37.0        52.2        6.15        2.44    
PRN05  7.0    81.5        50.1        49.5        5.44        2.42    
PRN06  6.6    81.0       -.422        52.6        6.31        2.21    
PRN07  6.6    80.0        723.        55.0        6.15        2.08    
PRN09  7.0    77.9       -9.24        54.0        5.87        2.26    
PRN10  5.0    80.9        52.8        54.2        7.68        2.70    
PRN14  6.9    81.4        12.1        51.1        6.02        2.38    
PRN15  7.0    3.59        327.        57.0        5.72        2.41    
PRN16  7.0    79.8        20.1        54.5        6.16        2.51    
PRN17  6.9    82.3       -125.        54.2        6.31        2.36    
PRN18  7.0    81.8        7.02        50.9        6.31        2.55    
PRN19  7.0    78.9        17.0        50.7        5.59        2.41    
PRN21  7.0    81.2       -29.7        50.2        6.00        2.54    
PRN22  7.0    80.0        327.        47.9        5.87        2.37    
PRN23  7.0    83.8        .651e-01    53.5        6.15        2.35    
PRN24  7.0    80.5        218.        54.5        6.15        2.42    
PRN25  7.0    80.8       -5.28        52.1        6.02        2.60    
PRN26  7.0    81.4       -21.7        53.5        6.02        2.37    
PRN27  7.0    80.8        36.2        52.4        6.60        2.53    
PRN28  6.7    2.02        97.3        60.5        5.30        2.50    
PRN29  7.0    81.1        10.9        48.6        5.87        2.58    
PRN31  6.8    80.6        636.        52.0        6.00        2.50    
_______________________
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  8 11   96  8 12   96  8 13   96  8 14   96  8 15   96  8 16   96  8 17
prn   3d rss (m)
  1       7.5        7.8        6.7        5.9        6.5        5.7        7.9 
  2       3.6        5.5        4.9        3.9        3.3        3.0        3.3 
  3       5.6        4.0        3.6        4.6        4.4        3.9        4.5 
  4       3.6        3.4        4.0        3.8        3.3        3.5        4.3 
  5       5.3        4.7        4.9        4.9        5.9        5.1        5.0 
  6       8.1        8.4        9.5        7.5        6.8        7.0        7.0 
  7       4.9        6.6        7.0        6.4        6.4        7.0        6.3 
  9       2.4        2.9        4.0        2.5        3.4        3.3        3.9 
 10                 69.5                  24.3       15.5       10.0        9.0 
 14       9.0        9.2        7.5        7.2       19.2       23.8        8.8 
 15       2.9        3.1        3.0        2.8        3.0        3.1        2.9 
 16       9.9        7.1        7.9        6.7        9.0        8.6        6.1 
 17       2.5        3.7        2.5        2.7        2.4        4.4        3.7 
 18       9.5        4.2        3.9        3.4        4.4        4.3        4.0 
 19       7.0        3.2        3.6        4.0        3.6        3.6        2.6 
 21       6.8        7.8        7.1        6.5        7.2        6.7        7.1 
 22       5.8        6.6        6.1        5.7        5.5        5.5        6.2 
 23       2.9        5.8        4.3        3.9        3.4        6.6        6.1 
 24       4.5        4.0        4.6        4.3        4.5        4.5        4.2 
 25       3.2        4.5        3.4        2.1        2.7        3.1        3.0 
 26       4.8        3.7        3.7        4.2        3.2        3.3        3.7 
 27       3.5        3.9        3.9        3.6        3.4        4.2        3.7 
 28       4.9        4.6        4.2        3.9        4.6        4.7        7.0 
 29       5.4        4.4        4.9        4.9        4.7        4.3        5.2 
 31       3.6        3.5        4.0        3.3        3.4        4.2        3.6 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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