Subject: [IGSREPORT-3388] Wk 0888 JPL Analysis Report
From: D C Jefferson
Date: Fri, 24 Jan 1997 14:25:30 PST

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IGS Electronic Report    Fri Jan 24 14:25:30 PST 1997      Message Number 3388
******************************************************************************

Author: D C Jefferson
Subject: Wk 0888 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0888 (DAYS 12-18, DATES 1997 Jan 12 - Jan 18)
******************************************************************************

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/0888.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename             contents
______________________________________________________________________________
jpl08887.sum         This text file.
jpl08887.erp         Earth rotation parameters for GPS week 888.
jpl08887.snx         Ground station coordinates for GPS week 888, SINEX format.
jpl0888[0-6].sp3     GPS ephemerides for GPS week 888, sp3 format.
______________________________________________________________________________

Median Orbit Repeatability (see table below): 15.0 cm
                           (excluding deweighted satellites)

We continue to deweight data from PRN10 this 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 deweighted for the entire GPS week 888.
WARNING: PIE1 (not ALGO) used as reference clock days 013-015.
WARNING: NLIB (not ALGO) used as reference clock days 016-018.
WARNING: Data from SEY1 excluded day 012.
WARNING: Data from HOB2, LPGS, SEY1 excluded day 013.
WARNING: Data from DAV1, HOB2, HOLP, MAC1, MONP, PIN1, WETT excluded day 015.
WARNING: Data from SHK1, TIBB, WETT excluded day 016.
WARNING: Data from FORT, WETT, WUHN excluded day 017.
WARNING: Data from SEY1, WETT excluded day 018.

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 888 (1997 Jan 12 - Jan 18)
     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
50460.50  -6026  10898  -133299  1697    3    3     7      7 37 13 25 -234  149 
50461.50  -6286  11014  -135004  1712    3    3     7      7 37 13 25 -251  174 
50462.50  -6487  11157  -136768  1816    3    3     8      8 37 13 25 -185  180 
50463.50  -6697  11344  -138587  1823    3    3     8      8 37 13 25 -216  139 
50464.50  -6881  11543  -140404  1810    3    3     7      7 37 12 25 -182  236 
50465.50  -7076  11771  -142215  1813    3    3     7      7 37 13 25 -258  240 
50466.50  -7270  11956  -143985  1727    3    3     7      7 37 13 25 -203  216 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 888:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 888 (1997 Jan 12 - Jan 18)
      97  1 12   97  1 13   97  1 14   97  1 15   97  1 16   97  1 17   97  1 18
prn   3d rss (m)
  1       0.19       0.11       0.14       0.15       0.27       0.18       0.15
  2       0.17       0.20       0.19       0.12       0.12       0.12       0.07
  3       0.15       0.14       0.18       0.19       0.33       0.15       0.18
  4       0.14       0.09       0.20       0.06       0.09       0.11       0.17
  5       0.19       0.23       0.27       0.24       0.27       0.29       0.15
  6       0.19       0.17       0.17       0.19       0.15       0.14       0.12
  7       0.11       0.12       0.15       0.12       0.21       0.10       0.17
  9       0.12       0.21       0.21       0.12       0.23       0.31       0.10
 10       1.05       1.79       1.05       1.11       0.91       0.98       1.02
 14       0.13       0.13       0.14       0.22       1.40       0.50       0.21
 15       0.12       0.09       0.12       0.12       0.23       0.11       0.13
 16       0.13       0.16       0.12       0.09       0.21       0.18       0.15
 17       0.13       0.16       0.17       0.24       0.19       0.10       0.17
 18       0.10       0.16       0.13       0.18       0.18       0.10       0.36
 19       0.08       0.09       0.06       0.11       0.09       0.11       0.15
 21       0.14       0.12       0.14       0.15       0.22       0.09       0.15
 22       0.13       0.17       0.19       0.19       0.18       0.14       0.13
 23       0.23       0.14       0.15       0.25       0.26       0.17       0.17
 24       0.16       0.15       0.18       0.17       0.15       0.20       0.09
 25       0.19       0.23       0.12       0.19       0.15       0.14       0.14
 26       0.17       0.19       0.10       0.26       0.20       0.17       0.08
 27       0.15       0.13       0.11       0.11       0.14       0.11       0.10
 29       0.08       0.17       0.10       0.07       0.15       0.10       0.12
 30       0.38       0.35       0.34       0.36       0.56       0.54       0.36
 31       0.10       0.12       0.19       0.16       0.19       0.14       0.18
_______________________
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 888 (1997 Jan 12 - Jan 18)
 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   2.0    7.17       -26.7        37.6        4.00        2.64    
ALGO*  6.8    59.9        .422        54.4        4.13        2.44    
ASC1   7.0    190.        .141        75.7        5.45        1.47    
BAHR   1.6    .309        265.        42.7        4.00        3.12    
BRUS   3.0    764.        1.19        61.3        4.76        2.64    
CAS1   2.0    17.1        .168e+04    36.5        6.00        1.58    
CASA    .9    9.03       -186.        32.0        4.00        2.35    
CHAT   7.0    102.        .142        76.3        6.00        2.78    
COCO   6.9    150.       -.211e+04    40.0        7.89        2.99    
DAV1   4.8    22.5        .103e+04    33.6        5.21        1.61    
DGAR   3.0    94.0        .618e-01    68.8        7.04        1.49    
EISL   3.8    137.        .268e-01    47.9        5.23        2.68    
FAIR*  7.0    .156        .531        32.1        4.66        2.39    
FORT   1.7    .163       -.493        49.1        6.00        3.22    
GOL2*  6.0    45.3        .243        48.6        4.56        2.83    
GUAM   7.0    122.        .145        54.4        8.06        2.28    
HART*  7.0    45.7       -.897        46.8        5.18        2.73    
IISC   7.0    85.6        .146        69.0        6.35        2.56    
IRKT   5.9    36.8        .524        50.6        5.54        2.79    
KERG   1.0    150.       -3.42          .         7.00        2.70    
KIT3   2.9    129.        .305        62.1        5.10        2.73    
KOKB*  6.8    67.9        .140        55.3        5.67        1.75    
KOSG*  7.0    9.97       -5.97        40.2        3.74        2.37    
KOUR   5.0    4.32        16.3          .         10.8        1.49    
KWJ1   7.0    88.3        .147        57.6        9.12        1.66    
LHAS   3.2    .943e+04   -.831        57.0        5.00        1.92    
MADR*  6.8    .433        25.7          .         5.61        2.44    
MALI   2.9    44.0       -758.          .         8.00        2.32    
MAS1   5.9    128.        .851e-01    41.2        5.76        2.46    
MCM4   5.0    96.5        .250        45.5        5.00        1.61    
MDVO   4.8    .308e+05    622.        72.7        5.81        2.48    
MKEA   6.0    .220       -.108        42.4        5.00        2.40    
MOIN   6.6    91.3        .164        67.2        6.49        1.70    
NLIB   2.8    .           .           37.3        4.00        2.53    
NOTO   4.0    .112       -3.20        31.3        4.00        3.02    
OHIG   6.5    .146e+06   -2.98        59.9        4.87        1.56    
PAMA   6.9    148.        .142          .         11.3        2.19    
PERT   7.0    2.71       -2.50        48.3        5.00        3.07    
PIE1   2.8    .           .           34.3        4.36        2.46    
SANT*  7.0    .105e+06   -49.7        43.9        5.31        2.46    
SEY1   2.5    .605e+04    .952          .         10.6        1.85    
SHAO   4.0    85.3        .232        42.5        4.77        2.35    
THU1   7.0    71.8        .147        43.7        5.31        2.60    
TID2*  6.8    14.5        .183        42.7        5.60        2.65    
TROM*  7.0    5.91        179.          .         4.49        2.00    
USUD   2.0    14.7        7.16        35.0        4.53        2.65    
WEST   3.0    .132       -3.64        69.6        4.36        2.72    
WTZR*  6.9    181.        1.45        55.2        4.15        2.41    
WUHN    .9    7.55       -253.        42.0        5.00        2.78    
YAR1*  6.6    416.        1.75          .         4.34        2.44    
YELL*  7.0    .380        .245        39.1        4.45        1.77    
PRN01  7.0    80.7        11.4        54.6        6.00        2.42    
PRN02  7.0    79.8       -327.        50.8        5.77        2.56    
PRN03  7.0    80.5        90.2        56.3        6.00        2.39    
PRN04  7.0    80.4        8.16        49.0        6.18        2.10    
PRN05  7.0    79.5        77.6        49.3        5.87        2.64    
PRN06  7.0    83.1        4.26        48.7        5.74        2.53    
PRN07  7.0    81.3        736.        53.8        5.87        2.45    
PRN09  7.0    83.8       -24.2        52.9        5.60        2.31    
PRN14  6.6    81.2        16.8        51.2        5.87        1.99    
PRN15  7.0    2.92        382.        57.7        5.59        2.33    
PRN16  6.7    81.5        39.9        56.6        6.30        2.12    
PRN17  7.0    80.8       -137.        53.2        5.45        2.06    
PRN18  6.9    81.3        20.7        49.4        6.22        2.42    
PRN19  7.0    80.0        243.        47.7        5.15        2.34    
PRN21  6.6    80.7        24.7        56.3        6.15        2.27    
PRN22  7.0    80.6        365.        51.6        6.00        2.18    
PRN23  6.6    82.1        8.56        55.2        6.87        2.23    
PRN24  7.0    81.5        304.        49.7        6.29        2.25    
PRN25  7.0    79.2       -4.63        47.7        6.00        2.26    
PRN26  7.0    80.8       -103.        52.1        5.87        2.23    
PRN27  7.0    81.1        15.2        47.3        5.87        2.44    
PRN29  7.0    81.1        5.54        50.8        5.00        2.34    
PRN30  7.0    80.0       -28.3        51.4        5.46        2.70    
PRN31  7.0    78.5        167.        50.0        5.87        2.53    
_______________________
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
      97  1 12   97  1 13   97  1 14   97  1 15   97  1 16   97  1 17   97  1 18
prn   3d rss (m)
  1       4.5        4.0        4.5        5.7        4.8        5.9        4.0 
  2       5.2        5.0        3.9        4.6        4.2        3.9        4.1 
  3       4.4        4.4        4.2        4.5        4.3        4.5        5.2 
  4       4.2        3.7        3.9        3.2        3.1        3.0        3.0 
  5       7.0        5.4        4.7        4.8        5.3        5.2        4.5 
  6       5.6        5.4        5.8        5.5        5.4        5.5        5.0 
  7       4.9        4.2        5.2        4.2        3.7        4.5        4.7 
  9       2.9        2.2        4.2        4.2        3.2        3.1        3.6 
 10       8.0        9.2       11.8       17.4       16.2       10.9        7.2 
 14      11.8       27.5        8.3       13.1        5.3        9.9        9.2 
 15       3.7        4.4        3.9        3.8        3.6        3.7        4.2 
 16      10.9       13.2       12.8       13.1        7.0       28.3       19.5 
 17       4.5        4.6        4.4        4.0        4.2        5.0        4.0 
 18       3.6        4.4        4.6       18.2        4.7        2.4        3.1 
 19       4.3        3.5        4.9        6.1        5.6        4.2        4.7 
 21       8.4        8.7        9.6        9.3        8.8        6.4        7.6 
 22       4.6        4.7        4.3        4.6        4.3        4.6        5.0 
 23      18.6       17.8       18.2       15.9       13.9       12.4       14.9 
 24       4.5        4.3        3.7        3.8        4.1        4.2        3.9 
 25       5.0        6.0        3.8        4.3        3.8        4.3        4.0 
 26       2.8        4.3        2.7        3.5        4.1        3.6        3.5 
 27       5.1        5.2        6.0        5.6        5.0        5.1        6.0 
 29       2.7        3.6        4.2        4.9        2.7        2.6        3.4 
 30       7.1        9.2        6.7        6.5        6.1        6.3        7.7 
 31       3.2        3.6        3.8        3.3        3.5        3.6        3.5 
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

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