Subject: [IGSREPORT-2753] Wk 0857 JPL Analysis Report
From: D C Jefferson
Date: Mon, 24 Jun 1996 15:11:17 PDT

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IGS Electronic Report    Mon Jun 24 15:11:17 PDT 1996      Message Number 2753
******************************************************************************

Author: D C Jefferson
Subject: Wk 0857 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0857 (DAYS 161-167, DATES 1996 Jun 09 - Jun 15)
******************************************************************************

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/0857.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08577.sum         This text file.
jpl08577.erp         Earth rotation parameters for GPS week 857.
jpl08577.snx         Ground station coordinates for GPS week 857, SINEX format.
jpl0857[0-6].sp3     GPS ephemerides for GPS week 857, sp3 format.
______________________________________________________________________________

Beginning this week, we summarize our first orbit statistics table using the
median repeatability value instead of the mean value:

Median Orbit Repeatability (see table below): 13.0 cm

According to the file nanu1996.mes obtained from the IGS CBIS, PRN26 was
unusable on day 162 for maintenance/repositioning.  Data from this satellite
did not meet our convergence criteria on this nor the following day (163),
and have been excluded from these days' analyses accordingly.

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 on day 162.
WARNING: NLIB (not ALGO) used as reference clock on days 163 and 164.
WARNING: ONSA (not ALGO) used as reference clock on days 165 and 166.
WARNING: Data from DGAR, MATE, ONSA, QUIN, STJO excluded day 161.
WARNING: Data from DGAR, GOPE, LAMA, MATE, NYAL, QUIN excluded day 162.
WARNING: Data from LAMA, MATE, QUIN, WEST excluded day 163.
WARNING: Data from ALGO, CASA, LAMA, QUIN, TRAK, ZWEN excluded day 164.
WARNING: Data from ALGO, ASC1, BOR1, CASA, GODE, LAMA, POL2 excluded day 165.
WARNING: Data from CASA, CMBB, LAMA, MONP, POL2, VILL excluded day 166.
WARNING: Data from CMBB, POL2 excluded day 167.

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 857 (1996 Jun 09 - Jun 15)
     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
50243.50   9919  58605   223459  1736    3    4     8      8 37 11 24  363 -155 
50244.50  10258  58462   221695  1791    3    4     8      8 36 12 23  398 -159 
50245.50  10659  58314   219884  1832    3    4     8      8 36 11 23  423 -196 
50246.50  11088  58169   218050  1835    3    4     8      8 37 11 24  455 -197 
50247.50  11527  57995   216230  1806    3    4     8      8 37 11 24  489 -202 
50248.50  11961  57845   214455  1743    3    4     8      8 37 12 24  479 -173 
50249.50  12388  57689   212750  1667    3    4     8      8 37 12 24  444 -171 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 857:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 857 (1996 Jun 09 - Jun 15)
      96  6  9   96  6 10   96  6 11   96  6 12   96  6 13   96  6 14   96  6 15
prn   3d rss (m)
  1       0.29       0.23       0.11       0.14       0.20       0.20       0.20
  2       0.16       0.16       0.07       0.13       0.09       0.12       0.15
  3       0.37       0.23       0.32       0.32       0.33       0.24       0.28
  4       0.09       0.13       0.12       0.10       0.10       0.17       0.14
  5       0.14       0.21       0.13       0.08       0.14       0.11       0.07
  6       0.09       0.14       0.17       0.13       0.11       0.07       0.10
  7       0.14       0.17       0.20       0.14       0.15       0.18       0.11
  9       0.18       0.15       0.10       0.09       0.11       0.10       0.14
 14       0.10       0.15       0.05       0.10       0.10       0.12       0.10
 15       0.29       0.20       0.14       0.08       0.07       0.12       0.12
 16       0.09       0.10       0.11       0.08       0.10       0.12       0.12
 17       0.08       0.12       0.08       0.08       0.09       0.14       0.12
 18       0.18       0.20       0.19       0.19       0.18       0.22       0.23
 19       0.16       0.15       0.32       0.32       0.25       0.16       0.18
 21       0.08       0.06       0.08       0.08       0.10       0.17       0.14
 22       0.13       0.10       0.11       0.10       0.09       0.13       0.12
 23       0.17       0.21       0.18       0.18       0.18       0.16       0.20
 24       0.11       0.11       0.11       0.08       0.11       0.17       0.12
 25       0.13       0.17       0.15       0.10       0.11       0.11       0.13
 26       0.2                              0.1        0.08       0.09       0.16
 27       0.10       0.11       0.10       0.09       0.15       0.11       0.08
 28       0.25       0.20       0.19       0.13       0.10       0.10       0.16
 29       0.20       0.13       0.09       0.11       0.11       0.11       0.09
 31       0.20       0.17       0.21       0.22       0.17       0.13       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 857 (1996 Jun 09 - Jun 15)
 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*  4.6    .927e-01    .630        48.6        4.95        2.99    
AREQ   7.0    93.5        .351e-01    42.3        4.62        2.32    
ASC1   4.8    .850e+04   -.544        62.3        5.51        1.69    
BOGT   7.0    109.        .492e-01    50.5        6.30        2.04    
BRMU   2.0    116.        .150        41.5        5.00        2.48    
BRUS   2.0    .438        5.41        61.0        5.52        2.82    
CAS1   4.9    18.6        .115e+04    35.4        5.22        2.16    
CASA   1.0    18.8        76.5        43.0        4.00        2.40    
CHAT   7.0    105.        .460e-01    80.6        5.16        2.81    
CRO1   1.0    157.       -.111        48.0        6.00        2.34    
DGAR   2.8    .173e+07    436.        67.0        4.65        .817    
DRAO   1.0    .542        3.00        33.0        4.00        3.08    
EISL   6.8    .762e+07   -.146e+05    40.6        6.44        2.81    
FAIR*  7.0    .186       -.447e-01    43.6        4.87        2.58    
FORT   5.9    171.       -.202        49.2        5.34        3.08    
GOL2*  6.9    .984e-01    .997        51.5        5.00        3.16    
HART*  7.0    26.3       -1.83        44.7        4.31        2.83    
HKLO   1.0    .289e+06    504.        44.0        6.00        2.74    
IRKT   7.0    .499        .202        62.7        4.60        3.10    
KERG   7.0    145.       -9.38          .         5.16        2.61    
KIRU   1.0    2.78       -.583        57.0        7.00        2.19    
KIT3   4.9    142.       -.363e-01    57.8        5.00        2.99    
KOKB*  7.0    .920e+05    272.        73.6        5.30        2.96    
KOSG*  5.8    1.94        4.76        43.2        4.03        2.47    
KWJ1   6.0    81.3        .547e-01    48.7        7.24        1.91    
LPGS   6.9    373.        .356e-01    53.6        5.31        2.83    
MAC1   3.9    75.6       -.138        32.0        3.53        2.21    
MADR*  6.9    .134        .177          .         5.19        2.35    
MALI   2.9    60.7       -18.4          .         8.00        2.51    
MAS1   7.0    352.       -3.34        46.9        4.00        2.88    
MCM4   6.9    89.3        .444e-01    33.8        4.16        2.24    
MDVO   1.0    .412        411.        70.0        6.00        2.58    
NLIB   2.8    .619e-01    1.04        53.2        5.00        2.92    
NOTO   3.0    .158       -21.4        37.4        4.70        3.18    
OHIG   6.8    .185e+04    .161e-01    53.6        4.46        1.93    
ONSA   1.9    .           .           42.0        3.00        2.12    
PAMA   7.0    156.        .336e-01      .         10.2        2.16    
PERT   6.8    .325e+04    19.1        51.9        5.45        3.05    
PIE1   1.9    .994e-01   -1.31        39.0        4.55        3.17    
POL2   1.8   100.0        .207        58.6        5.00        2.56    
RCM5   6.0    93.6        .143        52.8        6.25        2.80    
REYK   7.0    83.0        .378e-01    59.3        5.87        2.28    
STJO   5.0    2.57        2.33        37.6        4.43        2.71    
THU1   7.0    75.2        .412e-01    54.6        5.99        2.88    
TID2*  7.0    .995e-01   -.839        44.2        5.00        3.14    
TROM*  7.0    6.17        43.5          .         4.73        2.00    
USUD   7.0    1.04       -.449        37.0        5.03        2.73    
WTZR*  6.0    531.        .936        61.6        5.97        2.69    
YAR1*  7.0    91.6       -.567          .         4.76        2.48    
YELL*  6.3    .586       -.327        56.3        5.08        2.23    
PRN01  7.0    80.7        121.        49.2        5.45        2.55    
PRN02  6.6    79.7       -264.        53.5        5.16        2.28    
PRN03  7.0    80.0        21.3        49.7        5.00        2.55    
PRN04  6.6    80.7        29.9        48.6        5.46        2.21    
PRN05  6.7    80.9        43.7        52.7        5.30        2.23    
PRN06  7.0    83.0        1.04        49.7        5.73        2.85    
PRN07  7.0    81.6        722.        50.5        5.32        2.31    
PRN09  7.0    80.8       -25.0        51.9        5.16        2.46    
PRN14  7.0    82.5        14.2        49.1        5.16        2.25    
PRN15  6.6    3.47        310.        55.7        5.00        2.49    
PRN16  7.0    80.8        14.7        51.0        5.86        2.77    
PRN17  6.7    82.1       -117.        53.7        5.45        2.50    
PRN18  7.0    81.1        4.12        49.4        5.16        2.43    
PRN19  7.0    80.2        474.        58.0        5.00        2.62    
PRN21  7.0    80.0       -22.8        51.5        5.46        2.55    
PRN22  6.8    82.7        314.        48.6        5.31        2.34    
PRN23  7.0    81.1        .279        52.8        5.87        2.41    
PRN24  6.6    81.2       -7.05        50.1        5.59        2.43    
PRN25  7.0    81.6       -2.05        47.9        5.73        2.46    
PRN26  5.0    80.5       -211.        51.6        5.00        2.63    
PRN27  7.0    81.9        31.7        49.3        5.16        2.83    
PRN28  7.0    2.09        88.0        59.2        4.87        2.53    
PRN29  7.0    82.4        11.0        46.9        5.00        2.40    
PRN31  7.0    81.7        542.        52.0        5.32        2.45    
_______________________
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  6  9   96  6 10   96  6 11   96  6 12   96  6 13   96  6 14   96  6 15
prn   3d rss (m)
  1       4.5        5.1        4.1        3.0        4.0        3.7        5.0 
  2       5.9        6.9        7.9        7.9        5.5        6.5        7.0 
  3       5.3        4.2        3.9        3.4        4.4        4.2        4.1 
  4       7.4        7.6        6.6        6.9        7.6        7.4        8.4 
  5       6.1        7.0        7.6        8.8        7.5        9.5       11.1 
  6       3.3        3.3        3.9        4.3        4.9        5.8        4.0 
  7       4.3        4.1        4.1        3.9        4.6        4.6        4.1 
  9       3.9        3.7        3.9        3.9        3.9        4.2        4.3 
 14      11.2        6.9        4.5        4.4        4.7        4.5        5.1 
 15       4.9        5.5        5.5        4.8        4.3        4.2        4.5 
 16      12.8        3.8        3.8        5.0        4.5        4.2        4.5 
 17       4.5        5.1        5.5        5.5        5.6        4.6        2.7 
 18       3.7        4.6        4.1        2.7        3.3        3.4        3.3 
 19      11.5        2.4        3.2        3.1        3.6        3.5        4.5 
 21       6.8        6.7        6.1        5.5        6.5        7.3        6.6 
 22       6.2        5.7        6.4        7.0        6.9        7.3        7.7 
 23       5.8        5.4        4.0        4.7        3.9        5.2        4.1 
 24       6.6        6.4        6.2        5.6        5.6        5.4        5.6 
 25       4.9        4.8        4.5        4.6        4.3        4.1        4.1 
 26       1.9                              4.1        1.7        3.1        2.9 
 27       6.0        5.8        4.6        4.8        4.7        4.9        4.9 
 28       2.5        2.7        3.5        3.5        4.4        4.4        3.9 
 29       2.2        2.7        1.9        1.9        2.2        1.7        2.1 
 31       3.7        3.0        2.9        3.3        3.3        2.8        3.2 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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