Subject: [IGSREPORT-2952] Wk 0868 JPL Analysis Report
From: D C Jefferson
Date: Fri, 6 Sep 1996 16:13:34 PDT

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IGS Electronic Report    Fri Sep  6 16:13:34 PDT 1996      Message Number 2952
******************************************************************************

Author: D C Jefferson
Subject: Wk 0868 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0868 (DAYS 238-244, DATES 1996 Aug 25 - Aug 31)
******************************************************************************

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/0868.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08687.sum         This text file.
jpl08687.erp         Earth rotation parameters for GPS week 868.
jpl08687.snx         Ground station coordinates for GPS week 868, SINEX format.
jpl0868[0-6].sp3     GPS ephemerides for GPS week 868, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 cm

Data from PRN10 continues to appear mismodeled in our processing.  Although
used in each day's analysis, we have chosen to excluded this satellite from
our sp3 orbit prodcucts for the entire week (jpl0868[0-6].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 238.
WARNING: Data from DGAR, KELY, WINT excluded day 238.
WARNING: Data from AOA1, DGAR, ONSA excluded day 239.
WARNING: Data from AOA1, DGAR, RCM5, STJO, WHIT excluded day 240.
WARNING: Data from AOA1, CAGL, DGAR, NYAL, SNI1 excluded day 241.
WARNING: Data from CMBB, DGAR excluded day 242.
WARNING: Data from BOGT, CHIL, CMP9, DAM2, DGAR, SNI1, STJO excluded day 243.
WARNING: Data from CMP9, DGAR, NYAL, POTM excluded day 244.

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 868 (1996 Aug 25 - Aug 31)
     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
50320.50  29726  37185   122235  1203    3    3     7      7 37 12 25  129 -404 
50321.50  29762  36745   121025  1217    3    3     7      7 37 12 25   93 -384 
50322.50  29783  36350   119849  1136    3    3     8      8 37 13 25   97 -405 
50323.50  29798  35925   118658  1245    3    3     8      8 37 13 25   51 -418 
50324.50  29835  35477   117366  1339    3    3     8      8 37 13 25   58 -435 
50325.50  29818  35026   116001  1392    3    3     9      9 37 13 25   36 -486 
50326.50  29788  34573   114557  1496    3    3     9      9 37 13 25   12 -411 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 868:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 868 (1996 Aug 25 - Aug 31)
      96  8 25   96  8 26   96  8 27   96  8 28   96  8 29   96  8 30   96  8 31
prn   3d rss (m)
  1       0.11       0.12       0.15       0.23       0.24       0.14       0.13
  2       0.09       0.12       0.13       0.13       0.08       0.11       0.13
  3       0.31       0.24       0.24       0.28       0.32       0.25       0.43
  4       0.17       0.17       0.18       0.18       0.14       0.19       0.19
  5       0.15       0.11       0.16       0.14       0.11       0.13       0.14
  6       0.27       0.15       0.29       0.32       0.19       0.34       0.20
  7       0.08       0.09       0.18       0.18       0.08       0.16       0.12
  9       0.17       0.10       0.12       0.14       0.09       0.13       0.15
 10       1.08       0.90       0.86       0.95       0.93       0.95       0.92
 14       0.17       0.16       0.10       0.11       0.10       0.20       0.12
 15       0.14       0.12       0.14       0.11       0.16       0.20       0.22
 16       0.40       0.28       0.36       0.39       0.45       0.57       0.72
 17       0.26       0.21       0.13       0.13       0.19       0.12       0.27
 18       0.12       0.09       0.13       0.12       0.12       0.15       0.18
 19       0.13       0.12       0.15       0.11       0.14       0.13       0.17
 21       0.15       0.15       0.27       0.43       0.26       0.20       0.14
 22       0.21       0.17       0.16       0.33       0.15       0.23       0.17
 23       0.14       0.17       0.15       0.22       0.15       0.19       0.14
 24       0.37       0.22       0.14       0.17       0.12       0.20       0.21
 25       0.10       0.11       0.14       0.12       0.13       0.22       0.24
 26       0.22       0.11       0.11       0.15       0.10       0.18       0.22
 27       0.21       0.30       0.29       0.25       0.18       0.15       0.07
 28       0.2        0.18       0.17       0.31       0.20       0.36       0.47
 29       0.13       0.16       0.10       0.14       0.12       0.21       0.20
 31       0.13       0.11       0.12       0.11       0.17       0.16       0.15
_______________________
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 868 (1996 Aug 25 - Aug 31)
 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*  6.8    .103        4.82        48.4        4.93        2.93    
AREQ   3.0    88.1       -1.37        41.4        4.69        2.48    
ASC1   7.0    102.       -2.32        65.7        5.59        1.72    
BAHR   5.2    .838        432.        55.7        6.20        3.60    
BOGT    .9    202.        1.91        59.0        6.00        2.51    
BRU1    .9    .294e+06    502.        83.0        8.00        2.38    
BRUS   6.0    .882        .371        62.9        5.39        2.86    
CAS1   5.9    9.48        .168e+04    36.5        5.56        2.24    
CHAT   7.0    120.       -2.32        80.5        5.59        2.74    
COCO   6.8    .239e+06   -884.        38.7        6.44        2.65    
CRO1   6.0    172.       -3.03        45.5        6.72        2.12    
DAV1    .9    27.6        .155e+04    32.0        6.00        1.20    
EISL   1.9    .819e+07   -.203e+05    40.4        6.00        2.66    
ENG1   4.9    .289e+06    504.        93.8        12.0        3.22    
FAIR*  7.0    38.6       -2.55        38.0        5.15        2.06    
FORT   6.9    39.6       -2.05        49.5        6.06        3.34    
GOL2*  7.0    .761       -2.46        47.6        5.73        3.04    
GUAM   6.7    262.       -2.29        68.1        7.98        2.28    
HART*  7.0    .201e+04    2.84        43.1        4.73        2.76    
HKLO   1.0    .289e+06    506.        52.0        7.00        2.71    
IISC   3.9    84.4       -1.90        69.5        5.54        2.55    
IRKT   6.8    .843       -2.35        60.1        5.14        3.01    
KERG   7.0    169.       -16.3          .         5.45        2.59    
KIRU   1.0    2.84       -9.67        53.0        7.00        2.55    
KOKB*  7.0    86.0       -1.80        78.0        6.45        2.71    
KOSG*  5.8    1.47        .222        42.8        5.02        2.57    
KWJ1   7.0    89.2       -2.32        56.9        7.69        1.85    
LPGS    .9    422.        1.85        61.0        8.00        2.49    
MADR*  6.5    .916       -2.43          .         5.14        2.42    
MALI   6.9    .376e+04   -22.4          .         8.28        2.50    
MAS1   5.9    27.2       -3.79        45.8        4.36        2.91    
MCM4   7.0    89.0       -2.32        38.2        5.00        1.83    
MDVO   4.8    .667e+05    436.        67.0        6.21        2.68    
NOTO   1.0    .952e-01   -.279e-01    44.0        6.00        3.09    
PAMA   6.9    153.       -2.31          .         10.0        2.22    
PERT   7.0    2.67       -6.67        52.9        5.45        2.80    
PIE1   1.0    .           .           39.0        6.00        2.82    
POL2   7.0    86.1       -2.32        63.6        4.00        2.71    
REYK   6.0    86.5       -3.02        56.0        6.52        1.74    
SANT*  5.9    352.       -2.42        44.6        5.36        2.14    
STJO   2.0    4.27       -2.94        33.0        5.00        2.64    
THU1   7.0    75.7       -2.32        49.5        5.73        2.62    
TID2*  7.0    421.       -2.08        39.3        5.59        3.10    
TROM*  7.0    7.27        46.8          .         5.45        1.46    
USUD   7.0    1.13       -1.36        33.6        5.36        2.99    
WTZR*  6.8    4.83       -2.36        63.2        4.89        2.60    
YAR1*  6.7    .107e+05    39.1          .         5.17        2.48    
YELL*  7.0    .746       -3.34        43.3        5.58        1.50    
PRN01  6.9    82.2       -1.57        57.2        6.00        2.46    
PRN02  7.0    79.3       -287.        58.1        6.00        2.42    
PRN03  6.5    81.7        43.8        57.6        6.30        2.29    
PRN04  7.0    83.2        39.5        55.4        6.00        2.22    
PRN05  7.0    81.3        52.5        53.0        5.86        2.50    
PRN06  6.6    80.9       -.121        54.3        6.00        2.36    
PRN07  6.6    81.4        724.        57.3        6.49        2.09    
PRN09  7.0    79.7       -10.6        56.7        6.02        2.26    
PRN10  6.9    81.1        89.2        55.2        6.87        2.52    
PRN14  7.0    83.5        12.5        50.6        5.87        2.47    
PRN15  7.0    3.72        332.        58.5        5.87        2.51    
PRN16  7.0    80.0        21.9        54.9        6.00        2.58    
PRN17  7.0    83.7       -126.        56.5        5.89        2.52    
PRN18  6.8    83.2        8.18        52.4        6.00        2.61    
PRN19  7.0    80.2        50.4        51.7        5.86        2.48    
PRN21  7.0    79.9       -30.0        54.0        6.30        2.41    
PRN22  7.0    81.5        330.        50.9        6.00        2.36    
PRN23  7.0    80.2        .786        58.5        6.30        2.29    
PRN24  7.0    80.3        253.        56.4        6.44        2.34    
PRN25  7.0    81.3       -5.23        53.2        6.00        2.32    
PRN26  6.8    80.4       -29.0        54.8        6.31        2.37    
PRN27  6.8    .339e+04    27.3        53.9        5.90        2.61    
PRN28  6.6    2.48        100.        51.3        5.60        2.75    
PRN29  6.5    81.3        1.62        48.6        6.17        2.46    
PRN31  6.8    83.1        654.        56.4        6.31        2.37    
_______________________
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 25   96  8 26   96  8 27   96  8 28   96  8 29   96  8 30   96  8 31
prn   3d rss (m)
  1       7.5        6.9        7.0        6.8        5.8        6.7        7.5 
  2       4.2        3.4        3.5        3.3        2.9        3.5        3.2 
  3       7.1        8.1       10.5        9.8       10.1       12.9       22.2 
  4       4.1        4.0        3.6        3.4        3.7        4.0        4.0 
  5       4.0        3.3        4.3        9.1        3.7        3.3        4.3 
  6      11.8       12.1       11.2        7.3        7.5        7.3        9.6 
  7       9.1       11.4       10.5       10.2        7.4        6.8        2.2 
  9       2.4        3.4        2.3        2.3        2.6        2.5        2.6 
 10      12.1       12.5       13.1       11.5       12.7       15.3       10.2 
 14      24.4       19.0       10.0        8.4       22.4       19.1       12.5 
 15       3.2        2.7        2.3        2.5        2.2        2.6        2.3 
 16       5.6        7.7        4.4        6.6        8.8        7.8       12.1 
 17       2.7        3.4        1.8        3.7        3.8        3.9        2.9 
 18       5.0        5.0        5.9        4.6        6.3       25.6       25.8 
 19       4.9        3.6        4.3        5.5        6.1        3.9        5.4 
 21       7.0        7.6        7.3        7.0        6.7        6.7        7.5 
 22       6.8        6.3        6.0        6.0        5.0        4.8        5.5 
 23       7.9        9.3       17.5       14.5       15.4       12.8       23.4 
 24       4.3        4.4        4.1        4.0        4.6        4.6        4.8 
 25       5.4        4.6        4.5        3.5        3.3        3.3        4.9 
 26       5.0        4.6        4.0        4.0        5.2        6.0        4.3 
 27       6.4        6.3        5.1        6.5        6.8        4.3        5.8 
 28      10.3        6.3        6.6        6.7        4.5        7.8        6.8 
 29       4.6        5.6        3.9        5.2        5.6        6.3        6.1 
 31       6.5        7.3        5.9        7.1        7.0        5.4        6.6 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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