Subject: [IGSREPORT-417] JPL07037.SUM
From: G. Blewitt
Date: 4 AUG 1993 08:41:54

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IGS Electronic Report      4-AUG-1993 08:41:54       Message Number 417
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From: G. Blewitt
Subj: JPL07037.SUM
------------------

Submitted by

D C Jefferson, J F Zumberge, G Blewitt, M B Heflin, 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
______________________________________________________________________________
jpl07037.sum           This text file.
jpl07037.erp           Earth rotation parameters for GPS week 703.
jpl07037.sp1           GPS ephemerides for GPS week 703, sp1 format.
jpl07037.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

As of day 182 (July 1), we have stopped deweighting data for PRN07/GPS37. As
indicated by our orbit repeatability table, this satellite is now well modelled
by our analyses.

As notified by the International Earth Rotation Service (IERS), a positive leap-
second was introduced at 23:59:59 UT on June 30.

WARNING: Data from PRN07/GPS37 have been deweighted for days 178-181. (Jun 27            through Jun 30, 1993).

JPL LODR TABLE                               GPS week 703 (1993 Jun 27 - Jul 03)
  MJD       LODR     +/-
          (ms/day)
 49165.5    1.85     0.05
 49166.5    1.88     0.05
 49167.5    1.71     0.04
 49168.5    1.86     0.05
 49169.5    1.78     0.04
 49170.5    1.67     0.04
 49171.5    1.59     0.04
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 703 (1993 Jun 27 - Jul 03)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49165.5  -.05716   .20679  -.39402  .00014  .00015  .00000  .0  .01  .00  .00  38 23  0
 49166.5  -.05841   .20772  -.39582  .00013  .00015  .00000  .0  .05  .00  .00  40 23  0
 49167.5  -.06003   .20891  -.39760  .00012  .00013  .00000  .0  .00  .00  .00  40 23  0
 49168.5  -.06091   .20970  -.39937  .00013  .00015  .00000  .0  .05  .00  .00  39 23  0
 49169.5  -.06236   .21141   .59888  .00012  .00013  .00000  .0  .01  .00  .00  38 23  0
 49170.5  -.06357   .21259   .59714  .00012  .00013  .00000  .0 -.01  .00  .00  37 23  0
 49171.5  -.06475   .21394   .59543  .00012  .00013  .00000  .0 -.02  .00  .00  40 23  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 703:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 703 (1993 Jun 27 - Jul 03)
      93  6 27   93  6 28   93  6 29   93  6 30   93  7  1   93  7  2   93  7  3
prn   3d rss (m)
  1       0.37       0.24       0.25       0.31       0.41       0.58       0.57
  2       0.23       0.27       0.32       0.31       0.21       0.13       0.12
  3       0.18       0.29       0.29       0.21       0.29       0.23       0.24
  7      #2.92      #5.94      #3.39     #11.88       8.73       0.45       0.26
 12       0.32       0.52       0.38       0.47       0.67       0.52       0.48
 13       0.26       0.31       0.36       0.46       0.31       0.36       0.34
 14       0.49       0.40       0.40       0.58       0.64       0.38       0.34
 15       0.31       0.24       0.27       0.28       0.17       0.12       0.26
 16       0.13       0.20       0.24       0.24       0.15       0.09       0.19
 17       0.09       0.27       0.25       0.18       0.25       0.20       0.18
 18       0.30       0.38       0.55       0.19       0.25       0.20       0.27
 19       0.43       0.30       0.27       0.21       0.23       0.15       0.17
 20       0.11       0.36       0.34       0.22       0.32       0.39       0.40
 21       0.23       0.18       0.24       0.33       0.35       0.36       0.35
 22       0.40       0.25       0.23       0.22       0.46       0.36       0.28
 23       0.34       0.48       0.31       0.29       0.28       0.38       0.43
 24       0.20       0.25       0.20       0.18       0.12       0.08       0.11
 25       0.20       0.18       0.17       0.31       0.43       0.36       0.29
 26       0.61       0.26       0.20       0.20       0.20       0.21       0.23
 27       0.29       0.17       0.16       0.24       0.18       0.15       0.09
 28       0.33       0.18       0.18       0.19       0.22       0.16       0.19
 29       0.44       0.28       0.25       0.36       0.61       0.42       0.46
 31       0.42       0.44       0.44       0.40       0.33       0.47       0.47
_______________________
#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  6 27   93  6 28   93  6 29   93  6 30   93  7  1   93  7  2   93  7  3
prn   3d rss (m)
  1       8.3        8.0        8.0        8.0        7.0        5.8        6.7 
  2       5.9        8.3        7.9        7.5        9.2        5.4        5.0 
  3       8.5        8.2        8.5        8.9        8.4        8.3       10.7 
  7      #2.7       #2.2       #4.2       #2.5       18.4       13.5       11.7 
 12       3.8        6.1        9.2       16.26       9.7       10.24      11.2 
 13       8.6        7.2        5.3        5.8        6.2        6.9        6.5 
 14       3.2        3.7        4.0        3.7        3.7        4.7        5.6 
 15       7.3        8.9        7.4        7.6        8.6        5.7        4.6 
 16       5.4        4.9        4.8        5.4        6.4        7.4        6.7 
 17       5.5        5.3        5.6        7.0        7.7        6.6        5.9 
 18       8.8        6.6        7.5       10.5        9.2       12.0       16.8 
 19       6.4        9.9        9.5        8.2        8.0        7.9        5.4 
 20       4.3        4.9        5.1        8.6        5.4        3.6        4.4 
 21       4.2        4.2        5.8        7.4        7.3        6.9        5.2 
 22       8.4        6.2        6.3        4.4        4.8        6.3        4.6 
 23       6.9        5.1        5.0        8.4        6.2        4.2        3.5 
 24      10.6        9.5        7.8        9.0        9.7        9.7       11.0 
 25       3.9        4.0        6.5        9.4        7.9        5.1        5.0 
 26       3.2        2.6        2.9        2.3        5.9        6.5        4.7 
 27      10.0       11.5       10.0        9.7        9.4        9.6        9.9 
 28       4.9        5.2        5.3        6.1        6.7        4.7        4.7 
 29       6.7        5.7        5.5        5.6        5.4        4.5        5.1 
 31      21.4       19.0       17.8       17.6       15.2       15.5       15.7 
_______________________
#Indicates deweighted satellite.
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

The following tables, as explained in IGS Report Nos. 99 and 295, indicate the
amount of global network tracking data used in this week's analysis:

JPL SITE SUMMARY TABLE (no. stations)        GPS week 703 (1993 Jun 27 - Jul 03)
      93  6 27   93  6 28   93  6 29   93  6 30   93  7  1   93  7  2   93  7  3
Fiducials 7.2        6.5        7.5        6.7        7.2        7.8        7.9
Total    34.0       34.5       35.2       34.6       34.8       35.0       35.2
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 703 (1993 Jun 27 - Jul 03)
      93  6 27   93  6 28   93  6 29   93  6 30   93  7  1   93  7  2   93  7  3
site    % data
ALBH       99        100        100        100        104        103        103
ALGO*      96         96         97         96        101         85         91
BRMU       97         63         87         98        102         70         75
DRAO      102        103        102        103        106        106        106
FAIR*      82         87         99        100        102        103         98
FORT       96         91         77         61         94        113         65
GOLD       91         91         92         90         96         97         94
GRAZ       97         99         98         98        103        103        103
HART*      94         99         99         99        104        101        106
HERS      100        101        100        101        105        105        103
HOBA        0         89         99         91         92        101        103
JPLM       90         78         99        102        107        107        106
KOD1       96         81          0          0          0          0         58
KOKB*      97         98        102        105        108        109        108
KOSG       99         99        100        101        105        106        106
KOUR      103        103        104        105        110        109        110
MADR*      58         59         61         59         59         59         58
MASP       85        100        101        101        105        105        106
MATE       94         94         95         93         98         98         97
MCMU       42        103        114        113        117        118        118
MDO1       87         82         77         69          0          0          0
METS      103        104        104         96         83          0         16
NLIB       85         94         93         85         91         94         96
NYAL       75         73         30         50         33          0          3
ONSA      102        102         98        101        107        107        107
PAMA       89         93         94         93         96         98         99
PIE1       97         97         97         86          0         88         94
QUIN       85         91         94         87        101         99         95
RCM2        0         32         91         74         85         97         69
SANT*      83          0         79          0         48        102        103
STJO       98         98         99         98        100        103        106
TAIW       86         86         87         84         90         90         88
TIDB      102        101        104        101        105        107         96
TROM*     113        111        112        110         95        111        115
VNDP      100        103        103        102        102        106        107
WEST       95         60         38         98        103         81         93
WETT       77         81         93         99        104        104        104
YAR1*     100        102        102        103        107        107        107
YELL      105        104        101        104        109        109        109
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE