Subject: [IGSREPORT-455] JPL07077.SUM
From: G. Blewitt
Date: 26 AUG 1993 08:53:32

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IGS Electronic Report     26-AUG-1993 08:53:32       Message Number 455
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From: G. Blewitt
Subj: JPL07077.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
______________________________________________________________________________
jpl07077.sum           This text file.
jpl07077.erp           Earth rotation parameters for GPS week 707.
jpl07077.sp1           GPS ephemerides for GPS week 707, sp1 format.
jpl07077.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

For this week's analysis, we continue to deweight data from PRN09/GPS39. Also,
according to the file gpsn3.txt obtained from tycho.usno.navy.mil, PRN21/GPS21
was scheduled unusable beginning at 20:50 UT on day 210 (July 29) for up to 12
hours for maintenance. There were no broadcast ephemeris data available for
this satellite on day 211, as noted in our Broadcast Ephemeris Comparison table.
Because of this absence of data, satellite parameters for PRN21 were initialized
based on the following day's solution. 

Tracking data from HART adversely affected our analysis of day 206 (July 25).
We have therfore not included data from this site on this day. Data from HART
and MCMU have been excluded from the July 28 analysis as well.

According to IGS Mail Message 305, the antenna at KOKB (Kokee Park) was dis-
placed on day 207 between 20:10 and 21:45 UT. We have subsequently excluded
data from this site for this day's processing.

WARNING: Data from PRN09/GPS39 have been deweighted for the entire GPSweek 707.
WARNING: Data from HART have been deleted for days 206 and 209 (Jul 25, 28).
WARNING: Data from MCMU have been deleted for day 209.
WARNING: Data from KOKB have been deleted for day 207 (Jul 26), as the antenna           was temporarily relocated.

JPL LODR TABLE                               GPS week 707 (1993 Jul 25 - Jul 31)
  MJD       LODR     +/-
          (ms/day)
 49193.5    1.90     0.04
 49194.5    1.88     0.04
 49195.5    1.83     0.04
 49196.5    1.86     0.05
 49197.5    1.80     0.04
 49198.5    1.90     0.04
 49199.5    1.77     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 707 (1993 Jul 25 - Jul 31)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49193.5  -.07496   .24401   .56157  .00017  .00015  .00000  .0 -.09  .00  .00  41 24  0
 49194.5  -.07606   .24533   .55968  .00014  .00013  .00000  .0 -.05  .00  .00  39 24  0
 49195.5  -.07723   .24662   .55851  .00014  .00013  .00000  .0 -.05  .00  .00  41 24  0
 49196.5  -.07847   .24811   .55697  .00016  .00017  .00000  .0  .02  .00  .00  42 24  0
 49197.5  -.08011   .25005   .55529  .00012  .00012  .00000  .0 -.01  .00  .00  42 24  0
 49198.5  -.08113   .25203   .55389  .00012  .00012  .00000  .0 -.01  .00  .00  42 24  0
 49199.5  -.08245   .25389   .55236  .00012  .00013  .00000  .0 -.01  .00  .00  41 24  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 707:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 707 (1993 Jul 25 - Jul 31)
      93  7 25   93  7 26   93  7 27   93  7 28   93  7 29   93  7 30   93  7 31
prn   3d rss (m)
  1       0.15       0.21       0.10       0.36       0.44       0.43       0.41
  2       0.28       0.23       0.77       0.13       0.26       0.38       0.26
  3       0.32       0.23       0.19       0.27       0.23       0.21       0.20
  7       0.91       0.25       0.42       0.53       0.45       0.41       0.40
  9      #6.36      #4.36      #1.70      #4.97      #6.76      #4.01      #4.18
 12       0.37       0.28       0.28       0.43       0.40       0.26       0.42
 13       0.33       0.40       0.43       0.40       0.60       0.40       0.51
 14       0.34       0.32       0.57       0.43       0.58       0.41       0.28
 15       0.39       0.22       0.26       0.51       0.37       0.31       0.30
 16       0.23       0.31       0.14       0.29       0.20       0.20       0.15
 17       0.22       0.35       0.24       0.12       0.15       0.24       0.24
 18       0.53       0.53       0.47       0.29       0.40       0.52       0.65
 19       0.14       0.23       0.28       0.34       0.29       0.27       0.20
 20       0.27       0.23       0.22       0.27       0.34       0.21       0.25
 21       0.24       0.25       0.28       0.37       0.82       4.02       0.21
 22       0.24       0.31       0.33       0.24       0.19       0.13       0.15
 23       0.29       0.16       0.22       0.84       0.17       0.13       0.14
 24       0.24       0.14       0.30       0.62       0.66       0.27       0.16
 25       0.26       0.39       0.42       0.41       0.51       0.49       0.32
 26       0.10       0.21       0.26       0.15       0.24       0.28       0.31
 27       0.11       0.25       0.46       0.48       0.21       0.17       0.31
 28       0.28       0.31       0.19       0.28       0.18       0.13       0.10
 29       0.37       0.21       0.35       0.36       0.31       0.30       0.28
 31       0.26       0.27       0.19       0.22       0.09       0.18       0.19
_______________________
#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 25   93  7 26   93  7 27   93  7 28   93  7 29   93  7 30   93  7 31
prn   3d rss (m)
  1       4.8        5.4        6.0        6.9        6.1        5.2        5.8 
  2       9.2        9.2        9.9        7.1        8.5       11.2       10.5 
  3       6.9        8.1        5.0        8.8        9.8        9.4       10.3 
  7      12.0       14.1       18.7       10.2       11.6       14.9       11.2 
  9      #2.6       #3.6       #4.8       #2.3       #4.4       #5.2       #3.1 
 12       8.5        4.1        4.6        7.9        2.9        4.0        8.2 
 13       5.5        4.4        7.2        7.1        5.8        8.2        5.0 
 14       4.5        5.4        6.0        6.2        5.8        4.6        4.8 
 15       5.3        6.1        5.0        4.4        4.2        5.1        4.3 
 16       7.1        6.7        9.6        8.6        6.2       11.3       11.1 
 17       9.8        9.7        5.2        6.5        7.4        7.7       11.4 
 18       8.9        7.4       10.5       14.5        9.6       11.5       11.7 
 19       5.1        3.2        4.4        4.6        3.6        2.9        4.0 
 20       5.5        4.8        4.5        5.3        4.3        4.2       12.3 
 21       8.8        8.6        7.5        7.2        6.9  (not available) 12.8 
 22       5.7        5.4        5.5        5.9        5.7        6.2       10.7 
 23       7.4        6.6        4.3        7.8       30.3       31.9       26.8 
 24      12.8       11.3       14.9       15.0       15.6       14.6       11.9 
 25       5.3        5.9        5.5        6.1        5.6        4.4        9.2 
 26       2.7        3.0        4.5        5.4        5.4        5.4        2.9 
 27       6.0        3.0        3.9        5.1        5.2        4.0        3.6 
 28       4.9        5.0        4.0        5.4        6.6        7.5        4.7 
 29       5.1        4.1        4.4        5.4        4.3        4.6        5.3 
 31      14.5       12.9       11.4       10.0       10.0       14.0       12.7 
_______________________
#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 707 (1993 Jul 25 - Jul 31)
      93  7 25   93  7 26   93  7 27   93  7 28   93  7 29   93  7 30   93  7 31
Fiducials 6.3        7.2        7.2        6.5        8.1        8.0        8.2
Total    36.0       36.0       37.6       38.2       37.6       37.3       36.7
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 707 (1993 Jul 25 - Jul 31)
      93  7 25   93  7 26   93  7 27   93  7 28   93  7 29   93  7 30   93  7 31
site    % data
ALBH      103        105        105        103        100        101        104
ALGO*     101        101        102        101         98         97        101
BRMU       77         62        103        101         95         80         54
DRAO      107        108        107        106        102        101        104
FAIR*      89         89         90         91         89         91         89
FORT       82        114         83         95        104         99         46
GOLD       96         97         96         91         92         91         94
GRAZ       53         62         60         91        101         60         82
HART*       0        106        105          0        104        102        103
HERS      103        104        103        103        102        100        103
HOBA       98         99        100        100         99         97         99
JPLM      107        107        108        106         99        101        107
KIRU        0          0         91         89          0          0          0
KOKB*      18          0         13         47         99        103        107
KOSG       62        104        105        105        104        101        104
KOUR       97          0          0         96        105        104         88
MADR*     103        103        100        102        101         97        102
MASP      104        104        103        103        101        100        102
MATE       96         97         95         96         45          0          0
MCMU      105        115        115          0        114        113        115
MDO1       94          0         94        100         95         96        101
METS      106        107        106        106        106        103        107
NLIB       97         89         94         95         81         92         97
NYAL       18         56         68         65         71         68         53
ONSA       92         96        103        104         34         92         96
PAMA      101        100        101         97         91         87         89
PIE1      105        103        104        101         96         98         90
PINY       93         93         94         95         91         89         93
QUIN       79         63          0         73          0         50         33
RCM2      106        104        102        102         99         98        103
RCM4        0          0          0         85         88         50          0
SANT*     103        102         90         90        102        101        103
STJO      103        104        104        103        101        101        104
TAIW       85         86         85         87         80         82         85
TIDB      103        106        105        104        103         98        102
TROM*     108        110        114        114        108        104        112
USUD       94         90         89         86         78         79         82
VNDP      105        107        108        105        102        103        108
WEST       91         88         90         90         90         95        103
WETT      101        103        103         80         87         95         98
YAR1*     105        107        107        107        104        104        106
YELL      110        110        111        109        102        103        104
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE