Subject: [IGSREPORT-3225] Wk 0880 JPL Analysis Report
From: D C Jefferson
Date: Mon, 2 Dec 1996 13:33:24 PST

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IGS Electronic Report    Mon Dec  2 13:33:24 PST 1996      Message Number 3225
******************************************************************************

Author: D C Jefferson
Subject: Wk 0880 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0880 (DAYS 322-328, DATES 1996 Nov 17 - Nov 23)
******************************************************************************

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/0880.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08807.sum         This text file.
jpl08807.erp         Earth rotation parameters for GPS week 880.
jpl08807.snx         Ground station coordinates for GPS week 880, SINEX format.
jpl0880[0-6].sp3     GPS ephemerides for GPS week 880, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 16.0 cm
                           (excluding deweighted satellites).

Although we have been including data from PRN10 normally since GPS week
878, this satellite still seems to be mismodeled.  We have seen an adverse
effect on polar motion results when using these data regularly, and have
chosen to again deweight them indefinitely beginning day 325.  As a
consequence, solutions for PRN10 do not appear in the corresponding orbit
products, jpl0880[3-6].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: NLIB (not ALGO) used as reference clock days 323-325.
WARNING: PIE1 (not ALGO) used as reference clock days 326-328.
WARNING: Data from PRN10 deweighted days 325-328.
WARNING: Data from CHIL, EISL, WSMN excluded day 322.
WARNING: Data from DHLG, EISL, STL3 excluded day 323.
WARNING: Data from CSN1, DHLG, FORT excluded day 324.
WARNING: Data from FORT, TROM excluded day 325.
WARNING: Data from BRAZ, FORT excluded day 326.
WARNING: Data from BRAZ excluded day 327.
WARNING: Data from BRAZ, CMBB, KRAK excluded day 328.

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 880 (1996 Nov 17 - Nov 23)
     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
50404.50  13289  10376   -32535  1933    3    3     7      7 37 13 25 -153 -198 
50405.50  12993  10236   -34413  1823    3    4     8      8 37 12 25 -215 -234 
50406.50  12684  10092   -36252  1855    3    3     8      8 37 12 25 -210 -139 
50407.50  12371  10007   -38076  1793    3    4     9      9 37 12 25 -206  -79 
50408.50  12112   9916   -39872  1799    3    3     8      8 37 13 25 -205  -89 
50409.50  11805   9844   -41665  1786    3    3     8      8 37 12 25 -235  -60 
50410.50  11441   9767   -43445  1775    3    3     8      8 37 12 25 -273 -151 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 880:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 880 (1996 Nov 17 - Nov 23)
      96 11 17   96 11 18   96 11 19   96 11 20   96 11 21   96 11 22   96 11 23
prn   3d rss (m)
  1       0.30       0.23       0.25       0.15       0.17       0.14       0.12
  2       0.14       0.18       0.16       0.14       0.15       0.12       0.14
  3       0.15       0.18       0.15       0.17       0.21       0.17       0.20
  4       0.10       0.12       0.18       0.09       0.33       0.21       0.12
  5       0.11       0.16       0.11       0.14       0.22       0.21       0.25
  6       0.16       0.17       0.18       0.23       0.10       0.15       0.10
  7       0.14       0.19       0.25       0.15       0.09       0.15       0.12
  9       0.19       0.15       0.10       0.22       0.20       0.18       0.20
 10       0.67       0.59       1.65       1.41       1.92       1.85       1.67
 14       0.06       0.10       0.09       0.24       0.18       0.35       0.54
 15       0.37       0.36       0.13       0.25       0.15       0.19       0.28
 16       0.10       0.18       0.14       0.14       0.08       0.12       0.17
 17       0.12       0.10       0.17       0.20       0.10       0.19       0.19
 18       0.18       0.16       0.18       0.14       0.12       0.07       0.15
 19       0.16       0.10       0.08       0.19       0.28       0.08       0.18
 21       0.16       0.11       0.22       0.16       0.13       0.19       0.08
 22       0.10       0.08       0.14       0.12       0.15       0.15       0.22
 23       0.36       0.34       0.23       0.13       0.17       0.24       0.14
 24       0.09       0.13       0.12       0.16       0.26       0.16       0.18
 25       0.10       0.12       0.16       0.14       0.13       0.11       0.12
 26       0.27       0.23       0.15       0.16       0.19       0.20       0.11
 27       0.16       0.17       0.12       0.16       0.25       0.10       0.10
 29       0.15       0.12       0.14       0.22       0.20       0.33       0.18
 30       0.50       0.49       0.34       0.33       0.29       0.35       0.36
 31       0.10       0.11       0.12       0.19       0.19       0.14       0.14
_______________________
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 880 (1996 Nov 17 - Nov 23)
 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    64.1        .617        45.1        4.58        2.61    
AREQ   1.0    96.4        1.05        40.0        5.00        2.25    
ASC1   5.9    242.        .475e-01    82.7        5.18        1.68    
BAHR   6.0    .849        266.        44.7        5.03        3.69    
BRAZ    .9    156.        1.11        66.0        6.00        2.24    
BRMU   1.0    113.        1.03        41.0        6.00        3.42    
BRUS   6.8    .535        11.8        60.1        4.65        2.65    
CASA   4.0    11.3        324.        38.7        5.27        2.75    
CHAT   7.0    104.        .197        79.9        5.74        2.47    
CHUR   2.0    .883e+05    101.        30.0        6.00        1.60    
CRO1   6.9    218.        .206        45.0        5.90        2.37    
DAV1    .9    48.2        .155e+04    33.0        5.00        1.69    
DGAR   6.0    134.        .610e-01    74.6        6.83        1.64    
EISL   5.0    143.        .200        48.5        6.42        2.80    
FAIR*  7.0    .523       -.642        32.1        4.32        2.47    
FORT   1.9    .166       -.613        51.5        6.00        3.50    
GOL2*  7.0    35.8        .368        48.1        5.59        3.01    
HART*  7.0    24.8       -.110        47.7        5.80        3.19    
IISC   7.0    86.9        .201        68.6        5.61        2.26    
IRKT   5.8    1.16        .644        48.1        5.00        2.68    
KELY    .8    87.1        1.03        38.0        6.00        1.26    
KERG   6.9    .120e+04    5.56          .         5.31        2.69    
KIRU   2.9    4.10        1.04        51.7        6.70        2.16    
KIT3   6.9    134.        .181        55.7        4.30        3.17    
KOKB*  7.0    .540        .582        70.0        5.91        2.95    
KOSG*  5.8    1.48       -1.26        40.7        3.54        2.32    
KOUR   1.0    2.54        3.91          .         11.0        1.41    
KWJ1   6.4    84.8        .113        60.6        8.70        1.78    
LHAS   6.7    .246e+04    .890e-01    69.1        5.16        2.41    
MADR*  6.6    315.       -.166          .         5.42        2.60    
MALI   4.0    27.9       -286.          .         8.04        2.14    
MAS1   6.9    243.       -88.1        44.2        4.63        2.56    
MCM4   3.9    105.       -.452        49.9        5.51        1.57    
MDVO    .9    .924e-01    392.        66.0        6.00        2.47    
MKEA   1.0    .159        1.16        42.0        6.00        2.21    
MOIN   3.7    83.0        .325        63.3        6.32        1.69    
NLIB   2.9    .           .           42.3        4.36        2.87    
NOTO   1.0    .155       -4.68        31.0        5.00        3.28    
OHIG   5.2    .121e+05   -.305        49.4        5.00        1.51    
PAMA   4.9    220.        .428          .         9.80        2.36    
PERT   6.9    2.40       -2.08        51.0        4.60        2.91    
PIE1   2.8    .           .           39.4        4.76        2.36    
REYK   4.8    81.9        .132        59.1        6.61        1.89    
SANT*  6.8    914.        .194        52.1        5.20        1.82    
STJO   3.0    87.5        1.04        39.3        4.36        2.37    
TAIW    .6    129.       -.407          .         5.00        2.45    
THU1   6.0    71.5        .580e-01    40.2        5.71        2.59    
TID2*  7.0    .546        .645        42.0        5.31        2.92    
TROM*  2.7    4.77        13.2          .         4.70        1.62    
TSKB   3.0    1.16        7.61        47.6        5.70        2.94    
USUD   4.0    28.4        10.3        34.3        4.54        2.71    
WEST   2.0    .145       -.953        88.5        4.54        2.58    
WTZR*  7.0    .540        .477        59.4        4.16        2.74    
YAR1*  7.0    3.68        .462          .         4.04        2.44    
YELL*  7.0    .549       -1.30        35.9        4.76        1.84    
PRN01  7.0    81.8        7.60        56.4        5.60        2.39    
PRN02  7.0    81.4       -309.        56.8        6.00        2.43    
PRN03  7.0    82.6        73.0        54.0        5.45        2.59    
PRN04  6.8    83.6        55.3        53.7        5.87        2.12    
PRN05  7.0    83.2        69.2        53.3        5.16        2.53    
PRN06  7.0    81.9        3.61        50.6        5.31        2.59    
PRN07  7.0    81.9        732.        54.2        5.30        2.44    
PRN09  7.0    83.6       -17.8        57.5        5.59        2.27    
PRN10  3.0    79.4        345.        53.0        6.37        2.28    
PRN14  7.0    79.0        16.0        52.3        5.61        2.29    
PRN15  6.7    3.19        363.        60.1        5.74        2.10    
PRN16  7.0    81.7        33.6        57.0        5.30        2.49    
PRN17  6.6    78.6       -131.        52.4        5.15        2.23    
PRN18  7.0    81.1        16.8        48.3        5.45        2.72    
PRN19  7.0    81.5        197.        48.8        5.15        2.48    
PRN21  7.0    82.5        10.8        56.8        5.31        2.43    
PRN22  7.0    80.5        352.        51.6        5.45        2.55    
PRN23  7.0    79.4        6.58        56.3        5.45        2.33    
PRN24  6.8    79.3        348.        51.9        6.61        2.19    
PRN25  7.0    81.3       -3.91        48.9        5.60        2.30    
PRN26  7.0    79.0       -72.0        52.7        5.60        2.31    
PRN27  7.0    82.6        9.38        50.4        5.29        2.68    
PRN29  7.0    82.8        3.44        46.2        5.31        2.62    
PRN30  7.0    80.1       -13.3        55.7        5.16        2.71    
PRN31  7.0    82.2        69.7        55.4        5.30        2.43    
_______________________
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 11 17   96 11 18   96 11 19   96 11 20   96 11 21   96 11 22   96 11 23
prn   3d rss (m)
  1       5.8        5.9        7.0        4.5        3.6        3.9        3.7 
  2       4.4        5.8        3.8        3.8        3.7        4.5        6.5 
  3       4.6        5.2        3.9        4.2        3.6        4.2        3.8 
  4       9.6        7.0        6.6        6.2        7.1        6.3        5.6 
  5       4.7        4.2        4.3        5.5        5.3        4.6        4.6 
  6       6.8        5.6        4.9        5.5        6.6        6.8        5.8 
  7       5.7        5.5        5.6        6.7        5.6        4.9        4.9 
  9       4.3        4.6        4.8        4.1        4.2        4.4        3.4 
 10       6.4        4.1        5.8        6.8        3.5        4.5        5.3 
 14      17.7       10.8        3.9       19.7       18.3       10.6        4.2 
 15       9.3       10.0        6.8        6.7        6.1        7.0        6.9 
 16       3.7        3.8        3.5        3.4        3.3        4.8        9.4 
 17       7.8        7.7        8.1        6.4        9.0        8.4        7.5 
 18       2.6        3.9        5.6        2.4        6.5        3.9        4.9 
 19       2.9        3.5       18.2       14.7        4.0        4.7        3.9 
 21       5.9        9.1        8.6       10.1        2.7        3.1        3.0 
 22       5.6        5.5        5.4        5.3        5.7        5.3        7.0 
 23       3.8        3.9        4.6        3.1        4.1        2.9        2.8 
 24      11.2        8.9       10.5       12.4       13.2       14.1       12.2 
 25       8.6        8.7        7.2        6.8        6.4        5.6        5.8 
 26       5.4        6.5        3.6        4.5        6.3        9.1        6.6 
 27      11.9        9.6        8.3        9.4        9.3        8.7        8.7 
 29       4.0        4.7        4.6        2.2        2.6        3.9        3.3 
 30       8.5        6.2        6.6        6.1        7.6        6.5        6.1 
 31       3.7        2.5        2.3        2.5        2.4        2.7        3.1 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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