Subject: [IGSREPORT-2345] Wk 0835 JPL Analysis Report
From: D C Jefferson
Date: Mon, 22 Jan 1996 11:42:26 PST

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IGS Electronic Report    Mon Jan 22 11:42:26 PST 1996      Message Number 2345
******************************************************************************

Author: D C Jefferson
Subject: Wk 0835 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0835 (DAYS 7-13, DATES 1996 Jan 07 - Jan 13)
******************************************************************************

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/0835.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08357.sum         This text file.
jpl08357.erp         Earth rotation parameters for GPS week 835.
jpl08357.snx         Ground station coordinates for GPS week 835, SINEX format.
jpl0835[0-6].sp3     GPS ephemerides for GPS week 835, sp3 format.
______________________________________________________________________________

Mean Orbit Repeatability (see table below): 23.5 cm

According to the file nanu1996.mes obtained from the IGS CBIS, PRN24 was
unusable on day 008 for maintenance/repositioning.  This satellite did not
meet our initial convergence criteria on this nor the following day, and
its data were excluded from our analyses of both days.

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 CHAT, KERG, MCM4, TID2, TIDB, TROM, YAR1 excluded day 007.
WARNING: Data from CHAT, HART, KERG, LAMA, MCM4, PERT, SIO3, TID2, TIDB, TROM,
         YAR1 excluded day 008.
WARNING: Data from PRN24 excluded on days 008 and 009 due to a maneuver.
WARNING: Data from BRAN, CHAT, FAI2, KERG, MCM4, MONP, SIO3, TID2, TIDB, TROM,
         VILL, YAR1 excluded day 009.
WARNING: Data from BRAN, MATE, SIO3, TABL, TRAK, VILL excluded day 010.
WARNING: Data from BRAN, CHIL, KOKB, MATE, NYAL, TRAK, TROM, VILL excluded day
         011.
WARNING: Data from KOKB, MATE, TRAK excluded day 012.
WARNING: Data from FAIR, KOKB, MATE, PAMA, TRAK excluded day 013.

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 835 (1996 Jan 07 - Jan 13)
     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
50089.50 -18511  21094   544788  1907    8   10    12     12 37  9 25 -188  325 
50090.50 -18695  21369   542849  1971    9   10    12     12 37  8 24 -172  280 
50091.50 -18834  21612   540887  1954    8    9    12     12 37  9 24 -159  294 
50092.50 -19022  21855   538950  1920    5    6    11     11 37 12 25 -179  275 
50093.50 -19235  22146   537054  1871    5    6    11     11 37 11 25 -202  317 
50094.50 -19444  22459   535228  1782    6    7    13     13 37 12 25 -157  341 
50095.50 -19653  22779   533429  1816    6    6    12     12 37 11 25 -167  313 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 835:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 835 (1996 Jan 07 - Jan 13)
      96  1  7   96  1  8   96  1  9   96  1 10   96  1 11   96  1 12   96  1 13
prn   3d rss (m)
  1       0.31       0.16       0.17       0.23       0.43       0.37       0.35
  2       0.14       0.17       0.17       0.17       0.19       0.15       0.16
  4       0.25       0.32       0.22       0.13       0.15       0.20       0.26
  5       0.83       0.29       0.22       0.09       0.15       0.11       0.11
  6       0.28       0.30       0.35       0.27       0.10       0.14       0.19
  7       0.24       0.18       0.14       0.11       0.16       0.13       0.17
  9       0.23       0.19       0.14       0.11       0.20       0.32       0.27
 12       0.23       0.25       0.15       0.13       0.24       0.20       0.23
 14       0.17       0.31       0.32       0.24       0.19       0.14       0.14
 15       0.27       0.25       0.17       0.30       0.28       0.19       0.20
 16       0.22       0.25       0.38       0.15       0.44       0.32       0.21
 17       0.12       0.17       0.10       0.13       0.45       0.25       0.20
 18       0.19       0.14       0.15       0.17       0.10       0.22       0.26
 19       0.10       0.14       0.09       0.09       0.22       0.13       0.10
 20       0.26       0.32       0.30       0.15       0.41       0.44       0.33
 21       0.19       0.20       0.22       0.25       0.49       0.34       0.14
 22       0.21       0.33       0.60       0.16       0.21       0.29       0.27
 23       0.22       0.29       0.28       0.25       0.31       0.46       0.24
 24       0.3                              0.2        0.26       0.19       0.20
 25       0.32       0.46       1.06       0.40       0.34       0.35       0.33
 26       0.11       0.13       0.12       0.19       1.52       0.83       0.21
 27       0.06       0.17       0.06       0.09       0.12       0.14       0.10
 28       0.19       0.13       0.18       0.16       0.14       0.21       0.14
 29       0.12       0.11       0.15       0.19       0.19       0.18       0.14
 31       0.21       0.10       0.10       0.14       0.18       0.21       0.19
_______________________
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 835 (1996 Jan 07 - Jan 13)
 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   7.0    2.93        42.2        37.3        4.19        2.19    
ALGO*  7.1    .           .           35.3        3.00        2.64    
ANKR   2.5    179.       -.941e-01    58.3        4.37        2.20    
AREQ   7.0    85.9       -.982e-01    43.0        5.03        2.61    
AUCK   3.9    82.5       -.988e-01    40.6        5.15        2.84    
BOR1   3.0    2.46       -.996        36.0        3.00        2.99    
BRUS   7.0    .318        .692        63.0        4.16        2.29    
CHAT   4.0    100.       -.125        81.8        5.00        2.25    
CRO1   7.0    136.       -.106        42.3        6.65        2.06    
FAI2   5.9    35.9       -.122        48.3        4.17        1.73    
FAIR*  6.0    77.9       -.301          .         4.00        1.82    
GODE   3.0    .319        24.6        37.5        3.70        2.52    
GOL2   7.0    .766       -.151        45.4        3.87        2.76    
GOLD*  7.0    .807       -.243          .         2.63        2.30    
GRAS   3.0    77.6       -.597e-01    30.7        3.38        2.81    
GUAM   7.0    103.       -.990e-01    49.2        7.18        1.88    
HART*  5.8    277.       -7.12          .         7.27        1.36    
HARV   5.0    .764e+07    .146e+05    70.7        5.62        2.82    
IISC   6.9    298.       -.111        65.6        4.60        1.55    
IRKT   5.9    7.30       -.331        51.0        4.19        1.71    
KERG   3.9    126.       -521.          .         5.75        1.82    
KIRU   4.0    4.40        12.4        50.5        7.76        2.26    
KIT3    .8    118.       -.576e-01    59.0        4.00        2.89    
KOK2   3.5    .257       -.158e+04    40.1        7.40        2.61    
KOSG*  7.0    3.57        142.          .         3.00        1.88    
KOUR   4.0    3.11        1.19          .         8.76        2.13    
LPGS   3.0    562.       -.177        55.3        5.00        2.58    
MADR*  7.0    .734       -1.09          .         5.00        1.98    
MAS1    .9    .774e+06    124.          .         3.00        1.91    
METS   6.0    12.0       -4.27        35.1        3.06        1.18    
NLIB   7.0    .305       -.637        36.8        3.16        2.41    
NOTO   7.0    91.4       -.897        41.6        4.70        2.33    
OHIG   1.3    .131e+06   -2.39        52.0        4.59        1.00    
ONSA   3.0    .336        .197        38.1        3.00        2.14    
PAMA   4.8    182.       -.100          .         9.60        1.54    
PERT   5.0    2.32       -2.96        51.3        4.00        2.46    
PIE1   7.0    .314       -1.66        36.9        4.00        2.45    
QUIN   1.0    3.15        1.69        52.0        5.00        2.81    
SANT*  6.9    .296        .308          .         5.15        2.50    
SHAO   7.0    87.0       -.960e-01    159.        3.65        1.71    
STJO   7.0    729.        3.96        38.6        4.19        2.34    
THU1   7.0    70.2       -.101        46.9        4.31        1.96    
TID2   4.0    .278        .876        43.5        4.53        2.57    
TIDB*  4.0    .284        1.04          .         4.52        2.24    
TROM*  2.9    .145e+04    13.1          .         4.76        .717    
USUD   7.0    1.30        1.96        38.0        4.31        1.92    
VILL   4.0    .902e+05   -248.        58.3        4.15        2.09    
WETT*  6.3    .377        2.34          .         6.46        1.98    
YAR1*  3.9    1.87        .244          .         4.55        1.71    
YELL*  7.0    5.34       -.813        40.3        4.18        1.80    
ZWEN   1.0    50.3       -.138        55.0        5.00        2.71    
PRN01  6.7    82.1        555.        55.8        5.00        2.05    
PRN02  6.6    81.8       -223.        54.6        4.74        2.09    
PRN04  6.8    82.4        5.37        57.7        5.60        2.09    
PRN05  6.1    82.3        18.6        54.9        5.03        2.20    
PRN06  6.8    82.0        4.89        53.3        4.77        2.02    
PRN07  6.8    81.8        714.        55.7        5.16        2.21    
PRN09  6.8    82.5       -7.63        60.3        4.75        1.88    
PRN12  6.8    .731       -153.        52.9        4.46        2.43    
PRN14  6.6    82.3        12.0        55.6        4.87        2.30    
PRN15  6.8    3.80        260.        57.7        4.87        1.99    
PRN16  6.5    81.6       -163.        59.4        5.15        1.97    
PRN17  6.8    79.1       -103.        55.3        4.45        1.62    
PRN18  6.9    79.6       -5.70        52.0        5.32        2.42    
PRN19  6.9    81.8        297.        50.3        4.74        2.22    
PRN20  5.9    82.1        75.3        57.2        4.49        2.12    
PRN21  6.8    80.8       -12.0        56.9        4.58        1.91    
PRN22  6.4    81.6        276.        53.5        4.90        1.77    
PRN23  6.7    78.9        5.61        55.4        5.02        1.72    
PRN24  4.8    80.6        211.        62.7        5.63        1.90    
PRN25  6.4    78.1       -.464        51.0        5.16        2.05    
PRN26  6.5    80.3       -135.        61.3        4.87        1.61    
PRN27  6.9    79.4        15.0        50.8        4.73        2.20    
PRN28  6.7    2.27        58.5        57.8        4.45        2.14    
PRN29  6.9    80.8        5.08        51.9        4.87        2.40    
PRN31  6.7    83.2        217.        54.3        4.87        1.90    
_______________________
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  1  7   96  1  8   96  1  9   96  1 10   96  1 11   96  1 12   96  1 13
prn   3d rss (m)
  1       4.1        3.7        4.1        4.4        5.1        4.1        3.6 
  2       7.2        6.8        6.9        6.0        5.4        6.7        7.6 
  4       3.5        3.1        2.9        3.0        3.0        3.6        3.6 
  5      11.0        6.9        7.3        8.3        7.4        6.2        6.4 
  6       5.7        5.3        5.7        5.8        5.3        5.8        5.7 
  7       5.1        6.2        6.9        6.0        5.6        5.0        6.3 
  9       6.5        5.9        5.1        4.7        3.4        3.9        5.0 
 12      42.7        6.8       10.1       11.3        4.5        6.1        9.1 
 14       5.7        5.2        5.6        4.8        5.2        5.3        6.4 
 15       5.3        5.4        4.8        4.7        5.0        5.2        5.8 
 16       5.5        4.2        4.5        5.5        6.8        4.9        7.2 
 17       5.6        4.9        5.1        5.2        4.7        4.5        5.3 
 18       5.8        6.4        6.0        5.2        5.0        4.3        4.1 
 19       5.8        6.6        7.5        8.5        9.6        8.0        8.3 
 20       6.2        5.5        4.3        4.1        4.8        5.3        9.1 
 21       4.4        3.9        4.7        4.4        4.7        4.7        6.3 
 22       6.8        6.7        5.8        5.3        4.8        4.7        4.7 
 23       4.0        4.4        2.7        4.0        6.6        7.7        5.4 
 24       4.1                              6.9        2.5        2.3        2.7 
 25       6.5        6.8        6.9        4.8        6.1        7.7        7.4 
 26       6.1        2.8        3.9        4.9        4.9        3.5        5.0 
 27       5.8        5.4        6.3        5.4        4.4        4.4        4.4 
 28       3.9        3.2        4.1        2.9        3.7        5.2        3.6 
 29       5.3        4.0        5.1        5.5        4.5        3.5        3.5 
 31       3.2        2.8        3.3        2.6        2.6        2.8        2.9 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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