Subject: [IGSREPORT-428] JPL07047.SUM
From: G. Blewitt
Date: 11 AUG 1993 08:48:28

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IGS Electronic Report     11-AUG-1993 08:48:28       Message Number 428
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From: G. Blewitt
Subj: JPL07047.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
______________________________________________________________________________
jpl07047.sum           This text file.
jpl07047.erp           Earth rotation parameters for GPS week 704.
jpl07047.sp1           GPS ephemerides for GPS week 704, sp1 format.
jpl07047.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

Tracking data from MCMU proved to be corrupt for the analysis of day 187
(July 6). We have therfore not included data from this site on this day.

According to the file gpstd.txt obtained from tycho.usno.navy.mil, PRN09/GPS39
was launched on day 177 (June 26, 1993). This satellite was tracked by some
GPS sites as early as day 187 as well. However, its data have been excluded
for the entire week.

Due to a recent glitch in bodhi operations, data from some sites were included
twice on some days, having the effect of a decrease in the assumed data noise
for such days and sites by sqrt(2). These site-days have been flagged in the
the JPL GROUND STATION INCLUSION TABLE with a caret (^).

WARNING: Data from MCMU have been deleted for day 187 (July 6).
WARNING: Data from PRN09/GPS39 have been excluded for the entire GPSweek 704.

JPL LODR TABLE                               GPS week 704 (1993 Jul 04 - Jul 10)
  MJD       LODR     +/-
          (ms/day)
 49172.5    1.67     0.04
 49173.5    1.61     0.04
 49174.5    1.47     0.04
 49175.5    1.48     0.04
 49176.5    1.31     0.04
 49177.5    1.49     0.04
 49178.5    1.56     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 704 (1993 Jul 04 - Jul 10)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49172.5  -.06547   .21509   .59373  .00012  .00012  .00000  .0 -.01  .00  .00  40 23  0
 49173.5  -.06633   .21621   .59205  .00012  .00013  .00000  .0 -.03  .00  .00  38 23  0
 49174.5  -.06688   .21742   .59039  .00013  .00015  .00000  .0 -.01  .00  .00  40 23  0
 49175.5  -.06710   .21793   .58876  .00012  .00012  .00000  .0 -.02  .00  .00  41 23  0
 49176.5  -.06734   .21853   .58714  .00012  .00012  .00000  .0 -.02  .00  .00  41 23  0
 49177.5  -.06801   .21928   .58554  .00012  .00012  .00000  .0 -.02  .00  .00  41 23  0
 49178.5  -.06707   .22048   .58394  .00011  .00012  .00000  .0  .00  .00  .00  41 23  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 704:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 704 (1993 Jul 04 - Jul 10)
      93  7  4   93  7  5   93  7  6   93  7  7   93  7  8   93  7  9   93  7 10
prn   3d rss (m)
  1       0.58       0.78       0.69       0.67       0.58       0.52       0.45
  2       0.26       0.22       0.18       0.25       0.21       0.12       0.20
  3       0.26       0.22       0.21       0.26       0.20       0.23       0.26
  7       0.15       0.26       0.16       0.22       0.23       0.17       0.15
 12       0.58       0.47       0.36       0.54       0.54       0.39       0.44
 13       0.30       0.20       0.18       0.19       0.15       0.14       0.17
 14       0.46       0.45       0.19       0.26       0.27       0.33       0.38
 15       0.48       0.42       0.48       0.43       0.45       0.41       0.72
 16       0.13       0.15       0.15       0.26       0.30       0.29       0.19
 17       0.14       0.26       0.18       0.23       0.16       0.23       0.19
 18       0.34       0.37       0.33       0.43       0.50       0.52       0.40
 19       0.10       0.19       0.26       0.12       0.21       0.23       0.22
 20       0.29       0.47       0.42       0.47       0.52       0.38       0.28
 21       0.30       0.30       0.40       0.54       0.31       0.36       0.27
 22       0.37       0.31       0.21       0.17       0.13       0.20       0.26
 23       0.36       0.45       0.36       0.45       0.22       0.33       0.22
 24       0.13       0.17       0.17       0.18       0.34       0.38       0.30
 25       0.36       0.29       0.34       0.38       0.40       0.36       0.46
 26       0.14       0.23       0.39       0.26       0.25       0.23       0.28
 27       0.07       0.10       0.17       0.17       0.15       0.21       0.17
 28       0.23       0.26       0.23       0.28       0.35       0.22       0.20
 29       0.28       0.40       0.37       0.29       0.23       0.48       0.46
 31       0.43       0.46       0.34       0.48       0.45       0.51       0.46
_______________________
#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  7  4   93  7  5   93  7  6   93  7  7   93  7  8   93  7  9   93  7 10
prn   3d rss (m)
  1       7.0        7.2        6.2        5.6        5.6        5.6        5.3 
  2       6.4        6.9        7.3        7.5        6.6        6.8        6.5 
  3       9.4        9.2        9.0        7.9        6.8        5.7        7.6 
  7      18.2       18.3       19.8       23.0       18.6       17.5       14.2 
 12      12.8        6.86       7.9        7.1       29.9       27.4        9.0 
 13       5.6        6.4        5.3        5.1        3.9        5.6        6.7 
 14       5.4        4.4        4.5        5.1        5.7        5.2        5.8 
 15       7.5        7.9        5.8        5.5        6.7        9.7        3.9 
 16       7.0        8.6        8.5        8.8        7.3        8.9        6.8 
 17       9.5        9.9        6.3        5.7        6.5        6.9        8.0 
 18      13.3       14.4        8.8       12.0       12.0        9.2        7.0 
 19       5.2        5.1        5.5        5.6        6.7        6.8        6.6 
 20      10.8        4.2        3.6        3.4        3.0        4.7        4.7 
 21       5.9        6.4        5.9        5.9        5.2        5.4        6.4 
 22       6.0        5.6        4.8        5.3        5.9        5.9        5.4 
 23       8.9        8.5        6.0        4.6        4.1        8.2        7.1 
 24      11.6       12.0       13.7       13.5       14.2       12.8       10.8 
 25       7.2        6.6        6.1        5.1        4.3        4.6        4.8 
 26       6.9        3.5        4.3        3.4        3.7        4.0        3.0 
 27      10.3       10.2       10.5       10.4        9.0        8.1        7.6 
 28       6.0        7.6        5.1        3.5        2.8        3.9        4.9 
 29       6.5        7.5        6.7        5.7        6.6        7.3        6.6 
 31      13.4       13.0       18.6       20.6       16.2       15.3       15.6 
_______________________
#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 704 (1993 Jul 04 - Jul 10)
      93  7  4   93  7  5   93  7  6   93  7  7   93  7  8   93  7  9   93  7 10
Fiducials 7.8        7.9        7.9        7.8        8.8        8.6        8.8
Total    36.4       34.4       33.0       36.9       43.4       38.8       40.8
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 704 (1993 Jul 04 - Jul 10)
      93  7  4   93  7  5   93  7  6   93  7  7   93  7  8   93  7  9   93  7 10
site    % data
ALBH      103        104        104        104       ^187       ^115        103
ALGO*      93        100        100         99         98         87         85
BRMU      103        104         89         61        103        103        101
DRAO      106        106        107        107       ^191       ^117        107
FAIR*      90         92         92         88         89         90         89
FORT      112        113        113         89         43        106        114
GOLD       79         83         72         96         95         97         94
GRAZ      102         92         20         92        102         79         78
HART*     106        106        106        105        101        100        102
HERS      101        103        103        102        101        103        102
HOBA      101         97         83         57        100        101        101
JPLM      106        107        108        107        107        107        107
KOD1       91         57         67        100        100         99         97
KOKB*     109        109        108        109        108        109        107
KOSG      105        106        105        106        106        105        106
KOUR      110        110        109        110        110        109        108
MADR*      59         55         56         56         58         35         57
MASP      105        105        105        105       ^190       ^116        103
MATE       87          0         86         97         85          0         86
MCMU      118        118          0        117        115       ^115        110
MDO1        0          0         43        103        103        104       ^143
METS      101         75        106        104       ^195       ^211       ^214
NLIB       98         83         41         94         91         92         91
NYAL        3          0         33        114       ^130        ^74          0
ONSA      105        104        104        104        105        105        106
PAMA       98         98         96         97         97         96         98
PIE1       93         94         93         93         92         93         92
PINY        0          0          0          0          0         25         94
QUIN       97         91          9         10         79         42         49
RCM2       27         23         45         87         21         41        104
SANT*     103        101        102        101        103        103        102
STJO      106        105        105        105       ^188       ^114        103
TAIW       89         88         87         88         88         86         87
TIDB       94         70         55         60         79         96        105
TROM*     114        116        116        115       ^217       ^227       ^231
VNDP      106        107        107        107        107        107        106
WEST      103        103        102        102        102        103        103
WETT      104        103        103         83         47         42         76
YAR1*     106        106        107        106        107        107        106
YELL      109        110        110        110       ^197       ^120        110
_______________________
*Indicates fiducial site; #indicates deweighted site; ^indicates duplicate data.
END GROUND STATION INCLUSION TABLE