Subject: [IGSREPORT-440] JPL07087.SUM
From: G. Blewitt
Date: 18 AUG 1993 08:49:14

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IGS Electronic Report     18-AUG-1993 08:49:14       Message Number 440
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From: G. Blewitt
Subj: JPL07087.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
______________________________________________________________________________
jpl07087.sum           This text file.
jpl07087.erp           Earth rotation parameters for GPS week 708.
jpl07087.sp1           GPS ephemerides for GPS week 708, sp1 format.
jpl07087.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

As PRN09/GPS39 is still a relatively new satellite to the constellation, we
have deweighted its data for this week's analysis. Also, according to the
file gpsn3.txt, obtained from tycho.usno.navy.mil, PRN15/GPS15 was scheduled
unusable from day 214 (Aug 2) 15:15 UT to day 215 (Aug 3) 02:10 UT for
repositioning. We have therefore deweighted data from this satellite on both
days.

According to IGS Mail Message 305, the antenna at KOKB (Kokee Park) was
displaced on day 214 between 18:15 and 21:57 UT. We have subsequently excluded
data from this site for this day's analysis.

WARNING: Data from PRN09/GPS39 has been deweighted for the entire GPSweek 708.
WARNING: Due to the maneuver of PRN15/GPS15, data from this satellite has been           deweighted for days 214 and 215 (August 2 and 3).
WARNING: Data from KOKB has been deleted for day 214 (Aug 2), as the antenna
         was temporarily relocated.

JPL LODR TABLE                               GPS week 708 (1993 Aug 01 - Aug 07)
  MJD       LODR     +/-
          (ms/day)
 49200.5    1.84     0.04
 49201.5    1.92     0.05
 49202.5    1.93     0.05
 49203.5    2.04     0.05
 49204.5    1.84     0.05
 49205.5    2.14     0.05
 49206.5    1.89     0.05
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 708 (1993 Aug 01 - Aug 07)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49200.5  -.08313   .25526   .55089  .00012  .00013  .00000  .0 -.03  .00  .00  38 24  0
 49201.5  -.08338   .25709   .54942  .00016  .00014  .00000  .0 -.01  .00  .00  40 24  0
 49202.5  -.08477   .25916   .54795  .00014  .00014  .00000  .0  .04  .00  .00  38 24  0
 49203.5  -.08601   .26117   .54648  .00013  .00014  .00000  .0  .00  .00  .00  38 24  0
 49204.5  -.08781   .26323   .54500  .00013  .00014  .00000  .0  .01  .00  .00  37 24  0
 49205.5  -.08918   .26551   .54352  .00013  .00013  .00000  .0  .03  .00  .00  39 24  0
 49206.5  -.09091   .26731   .54203  .00013  .00013  .00000  .0  .02  .00  .00  38 24  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 708:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 708 (1993 Aug 01 - Aug 07)
      93  8  1   93  8  2   93  8  3   93  8  4   93  8  5   93  8  6   93  8  7
prn   3d rss (m)
  1       0.38       0.58       0.39       0.45       0.34       0.28       0.34
  2       0.34       0.56       0.66       0.46       0.43       0.42       0.47
  3       0.15       0.92       0.56       0.21       0.21       0.17       0.21
  7       0.37       0.58       0.36       0.16       0.53       0.55       0.42
  9      #4.14      #3.02      #4.57      #4.29      #4.26      #9.53      #4.30
 12       0.67       0.55       0.22       0.34       0.33       0.23       0.23
 13       0.47       0.55       0.57       0.50       0.18       0.23       0.45
 14       0.26       0.33       0.41       0.66       0.56       0.45       0.46
 15      11.41   #1956.99   #3209.99    1013.39       0.21       0.19       0.25
 16       0.33       0.30       0.26       0.22       0.32       0.21       0.28
 17       0.16       0.80       0.20       0.12       0.22       0.26       0.17
 18       0.59       0.46       0.59       0.59       0.43       0.30       0.33
 19       0.25       0.40       0.56       0.22       0.25       0.22       0.35
 20       0.28       0.38       0.42       0.61       0.59       0.57       0.56
 21       0.16       0.50       0.27       0.19       0.23       0.24       0.20
 22       0.19       0.28       0.39       0.18       0.13       0.30       0.33
 23       0.20       0.43       0.21       0.21       0.18       0.25       0.14
 24       0.32       0.41       0.28       0.38       0.37       0.37       0.38
 25       0.62       2.05       0.70       0.56       0.42       0.40       0.49
 26       0.22       0.27       0.32       0.12       0.21       0.21       0.27
 27       0.33       0.25       0.32       0.37       0.35       0.16       0.36
 28       0.13       0.54       0.17       0.13       0.35       0.35       0.31
 29       0.30       0.68       0.47       0.45       0.44       0.43       0.39
 31       0.26       0.42       0.19       0.19       0.40       0.43       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  8  1   93  8  2   93  8  3   93  8  4   93  8  5   93  8  6   93  8  7
prn   3d rss (m)
  1       6.2        7.4        7.5        6.5        5.3        6.4        7.3 
  2       9.0        9.5        3.1        6.6        7.1        5.6        5.1 
  3      11.1       12.2       15.0       14.4        9.8       11.5       13.2 
  7      12.4       18.4       13.5       10.7       14.3       14.9       14.6 
  9      #1.7       #2.8       #2.1       #3.1       #2.1       #2.2       #5.9 
 12       5.19       4.6        7.9        5.2        3.8        5.1        6.5 
 13       6.0        8.9        6.2        7.3        7.1        7.9        8.7 
 14       4.3        4.3        5.2        4.5        5.7        6.4        6.8 
 15       9.2       #3.9    #3642.3       33.7       21.5        7.9        5.7 
 16      10.2       13.1        9.3       11.1        7.6        9.5        9.4 
 17       6.4        3.8       14.3        8.0       12.9        8.3        5.1 
 18       8.7        9.1        9.6       15.1       13.7        8.6        9.0 
 19       7.0        3.4        2.6        4.6        3.1        4.1        6.5 
 20      11.3       10.3        9.3        6.1       10.1       12.9        5.2 
 21      10.0        9.5        9.7        9.5        8.8        5.9        5.1 
 22      10.9        8.0       10.8       10.6        6.8        6.6        5.4 
 23      13.7        6.7        8.7        6.8        6.7        5.6        5.8 
 24      14.3       20.4       10.2        8.4        8.6       10.3       18.5 
 25       8.8        6.8        9.9        7.9        5.5        2.7        4.8 
 26       3.9        4.2        3.9        3.1        2.4        4.2        7.1 
 27       5.2        6.6        2.6        3.8        3.2        4.0        3.2 
 28       6.4        6.2        6.5        7.0        5.2        6.5        4.6 
 29       5.5        6.3        5.6        6.2        4.8        5.6        7.0 
 31       8.5       11.5       21.7        7.4        5.9        8.6        9.7 
_______________________
#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 708 (1993 Aug 01 - Aug 07)
      93  8  1   93  8  2   93  8  3   93  8  4   93  8  5   93  8  6   93  8  7
Fiducials 8.1        6.5        7.6        8.2        8.0        8.1        8.2
Total    34.3       34.1       33.4       34.7       33.9       35.8       34.7
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 708 (1993 Aug 01 - Aug 07)
      93  8  1   93  8  2   93  8  3   93  8  4   93  8  5   93  8  6   93  8  7
site    % data
ALBH      104        102         99        105        105        105        105
ALGO*     102         79         74        100        101        102        102
BRMU      101        100        100         95         54         87        104
DRAO      107        103        103        107        107        107        108
FAIR*      89         88         86         90         90         90         88
FORT       75        108        105         55         95        111         96
GOLD       98         96         92         95         96         98         97
GRAZ       51         58         89          0          0         41         52
HART*      98         99        101        104        104        104        104
HERS      103        100         98        102        103        103        103
HOBA       97         91         90         96         96         96         96
JPLM      108        105        105        109        108        108        108
KOKB*     108          0        101        109        109        109        109
KOSG      103        101        101        104        105        106        104
KOUR        0         85          0          0          0          0          0
MADR*     102         98         97         98         99         98         91
MASP      103         88          0         80          0         93        104
MATE        0         60         85         74         93         95         94
MCMU      107        109        108        116        115        115        104
MDO1      101        101         98         99         88          0          0
METS      106         93         96        105        109         97          0
NLIB       89         85         81         81         82         87         80
NYAL       16          8         26         47         44         26         37
ONSA        0         92        103        107        106        104        106
PAMA       98         83          0          0          0          0          0
PINY       91         89         89         93         92         94         92
QUIN       83         53         77         95        103        103         91
RCM2      105        102        101        106        105        106        106
RCM4        0          0          0          0          0        104        104
SANT*     103         99         99        103        102        103        103
STJO      102        101         99        100        105        105        104
TAIW       86         78         81         83         80         86         87
TIDB      104        100         98        105        105        104        104
TROM*     108        105        107        112        111        112        114
USUD       78         70         69         75         75         75         76
VNDP      107        103        102        106        108        108        107
WEST       99         95         94        102        103        102        102
WETT       94         92         98         94        100        101         76
YAR1*     103         85         91        108         84         89        106
YELL      106        103        100        107        110        105        110
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE