Subject: [IGSREPORT-262] JPL Analysis Report (week 692)
From: G. Blewitt
Date: 11 MAY 1993 08:46:35

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IGS Electronic Report     11-MAY-1993 08:46:35       Message Number 262
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From: G. Blewitt
Subj: JPL Analysis Report (week 692)
------------------------------------

Submitted by

J F Zumberge, G Blewitt, M B Heflin, D C Jefferson, F H Webb

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

The following files have been posted on BODHI (for access to BODHI contact
[email-masked]):

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl06927.sum           This text file.
jpl06927.erp           Earth rotation parameters for GPS week 692.
jpl06920.sp1,sp3       GPS ephemerides for Sun, Apr 11, sp1 and sp3 formats
jpl06921.sp1,sp3       GPS ephemerides for Mon, Apr 12, sp1 and sp3 formats
jpl06922.sp1,sp3       GPS ephemerides for Tue, Apr 13, sp1 and sp3 formats
                       (no PRN20)
jpl06923.sp1,sp3       GPS ephemerides for Wed, Apr 14, sp1 and sp3 formats,
jpl06924.sp1,sp3       GPS ephemerides for Thu, Apr 15, sp1 and sp3 formats,
jpl06925.sp1,sp3       GPS ephemerides for Fri, Apr 16, sp1 and sp3 formats,
jpl06926.sp1,sp3       GPS ephemerides for Sat, Apr 17, sp1 and sp3 formats,
______________________________________________________________________________

PRN22/GPS22 has been deleted for the entire week of analysis, see jpl06917.sum
for details. Also, according to the file gpsn2.txt obtained from tycho.usno.mil
PRN20/GPS20 was scheduled unusable from 08:47 UT to 18:01 UT on day 103 (April
13). We have therefore deleted this satellite from processing on this day only.
PRN29 exhibited unmodelled behavior on day 103 as well. We have thus chosen to
deweight data from this satellite for April 13 only.

WARNING: Due to the maneuver of PRN20/GPS20, data from this satellite have               been deleted for day 103 (Apr 13).
WARNING: Data from PRN22/GPS22 have been deleted for the entire GPSweek 692.
WARNING: Data from PRN29/GPS29 have been deweighted for day 103 (April 13).

JPL LODR TABLE                               GPS week 692 (1993 Apr 11 - Apr 17)
  MJD       LODR     +/-
          (ms/day)
 49088.5    3.07     0.05
 49089.5    2.67     0.06
 49090.5    3.37     0.06
 49091.5    3.12     0.06
 49092.5    2.51     0.06
 49093.5    2.23     0.06
 49094.5    3.08     0.06
END LODR TABLE

NOTE: In the following table, UT1R-UTC are the assumed nominal values from
IERS Bulletin-B predicts; estimated LODR values are given in the previous
table. See IGS Mail Message 97 for details.

JPL UTPM TABLE                               GPS week 692 (1993 Apr 11 - Apr 17)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49088.5   .08418   .16523  -.20499  .00014  .00015  .00000  .0 -.01  .00  .00  38 21  0
 49089.5   .08115   .16488  -.20773  .00014  .00015  .00000  .0 -.02  .00  .00  37 21  0
 49090.5   .07959   .16492  -.21045  .00017  .00019  .00000  .0 -.07  .00  .00  32 20  0
 49091.5   .07809   .16508  -.21317  .00015  .00016  .00000  .0 -.03  .00  .00  32 21  0
 49092.5   .07620   .16517  -.21587  .00015  .00016  .00000  .0 -.05  .00  .00  33 21  0
 49093.5   .07402   .16521  -.21857  .00016  .00018  .00000  .0 -.05  .00  .00  31 21  0
 49094.5   .07258   .16407  -.22125  .00015  .00017  .00000  .0 -.05  .00  .00  33 21  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 692:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 692 (1993 Apr 11 - Apr 17)
      93  4 11   93  4 12   93  4 13   93  4 14   93  4 15   93  4 16   93  4 17
prn   3d rss (m)
  1       0.99       0.74       0.71       0.54       0.33       0.32       0.42
  2       0.25       0.25       0.13       0.14       0.20       0.35       0.33
  3       0.57       0.54       0.32       0.81       1.03       0.84       0.83
 11       0.31       0.32       0.51       0.34       0.30       0.23       0.53
 12       0.23       0.21       0.33       0.27       0.35       0.29       0.21
 13       0.48       0.34       0.29       0.35       0.63       0.56       0.31
 14       0.18       0.30       0.24       0.34       0.54       0.53       0.19
 15       0.26       0.13       0.36       0.32       0.24       0.19       0.11
 16       0.19       0.35       0.25       0.21       0.61       0.52       0.44
 17       0.28       0.41       0.34       0.43       0.56       0.53       0.92
 18       0.42       0.49       0.58       0.67       0.62       0.84       0.73
 19       0.31       0.30       0.27       0.23       0.42       0.34       0.33
 20       0.36       0.5     (not used)    0.3        0.31       0.42       0.31
 21       0.20       0.20       0.20       0.30       0.44       0.37       0.28
 23       0.32       0.29       0.28       0.17       0.50       0.57       0.36
 24       0.32       0.42       0.20       0.20       0.43       0.43       0.29
 25       0.35       0.38       0.21       0.59       0.86       0.65       0.29
 26       0.26       0.40       0.50       0.39       0.52       0.49       0.41
 27       0.17       0.29       0.13       0.28       0.35       0.28       0.25
 28       0.32       0.23       0.28       0.22       0.34       0.46       0.70
 29       0.51      18.79     #53.69      42.08       1.28       1.01       0.41
_______________________
#Indicates deweighted satellite.
END ORBIT REPEATABILITY 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
      93  4 11   93  4 12   93  4 13   93  4 14   93  4 15   93  4 16   93  4 17
prn   3d rss (m)
  1      46.9       35.8       16.9       14.9       14.6       14.7       13.9 
  2       4.6        5.7        5.4        4.8        5.6        4.1        3.7 
  3      13.8       12.8       12.5        9.5        8.3        9.1       10.2 
 11       5.1        5.1        7.7        8.9        7.3        5.3        4.5 
 12       6.7        4.7       10.3       10.62      11.9        5.9        9.3 
 13       5.3        3.1        3.8        3.7        2.3        3.3        2.8 
 14       8.1        9.5        4.9        6.9        6.3        7.2        8.9 
 15       0.0        4.5        7.5       11.3        9.7        8.8        6.3 
 16       8.6       10.0       11.3       13.5       13.9        9.6        5.7 
 17       9.8       11.4       10.4       11.2       11.2        8.5        6.5 
 18      11.0       21.0       26.5       22.2       13.9        8.3       13.6 
 19       4.0        4.6        2.9        6.4        7.2        4.5        3.1 
 20       8.8        6.2    (not used)    16.7       14.3       18.9       19.1 
 21       6.3        4.4        4.2        7.1        5.6        4.5        5.2 
 23      14.3       13.9       13.2       21.9       18.4       10.8       10.7 
 24       5.0        4.8        4.6        5.9        5.6        4.4        9.6 
 25       8.7       11.0        9.8        7.6       12.2       10.9        7.8 
 26      12.7        9.7       12.8       10.2       10.9        7.9        6.3 
 27       9.9        9.8        6.6        7.0        7.7        5.6        6.5 
 28      13.9        7.3        4.4        6.3        7.6        6.4        4.9 
 29       8.4       12.9      #13.6       84.7       74.7       25.5        5.0 
_______________________
#Indicates deweighted satellite.
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

The following table, as explained in IGS Report No. 99, indicates the amount
of data from each tracking site used in this week's analysis:

JPL GROUND STATION INCLUSION TABLE           GPS week 692 (1993 Apr 11 - Apr 17)
      93  4 11   93  4 12   93  4 13   93  4 14   93  4 15   93  4 16   93  4 17
site    % data
ALBH      104        104         95        104        105        102        103
ALGO*     105        102         99        106        108        107        104
BRMU       94         11          0          0          0          0          0
DRAO       30         97         97        102        105        105        106
FAIR*       7         36         99        105        107        106        107
GOLD       92         96         89         98         94         97         98
GRAZ      109        109         98         65         97        108        110
HART*     106        106         95        106        105        106        106
HOBA       91         79          0          0          0          0          0
JPLM       70         79         93        103        102         69         68
KOKB*     107        108         96        108        109        110        109
KOSG      110        112         89         80        111        112        112
KOUR      113        113        103        116        102          0         96
MADR*      98        108         95        108        108        105        107
MASP      110        110         98        109         94          0         91
MATE      102         92          0          0          0          0          0
MCMU      120        120        108        120        121         78         77
METS      112        110         98        102        105        104        103
NLIB      103        105         96        104        105        104         57
NYAL      125        125        110        117        118        116        118
ONSA       91         99         89          0        101        113        114
PAMA      101        102         90         98        102        102        103
PIE1      104        103         96        105        106        105        104
QUIN      105        105         96        106        105        106        106
RCM2      107        108         98        108        108        108        107
SANT*     112        112        101        112        112        112        111
STJO      110        111         99        108        110        110        109
TAIW      106         99          0          0          0          0          0
TIDB      108        109         99        101        100        104        105
TROM*     121        121        104        112        111        113        112
USUD       15          0          0         78         87         83         94
VNDP      104        101         92         92        100        102        101
WEST       98        101         98        108        109        108        108
WETT       85         41          0          0          0          0          0
YAR1*     110        112         99         98         96        106         91
YELL      113        114        104        110        109        108        112
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE