Subject: [IGSREPORT-312] JPL Analysis Report (697)
From: G. Blewitt
Date: 5 JUN 1993 15:14:31

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IGS Electronic Report      5-JUN-1993 15:14:31       Message Number 312
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From: G. Blewitt
Subj: JPL Analysis Report (697)
-------------------------------

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
______________________________________________________________________________
jpl06977.sum           This text file.
jpl06977.erp           Earth rotation parameters for GPS week 697.
jpl06977.sp1           GPS ephemerides for GPS week 697, sp1 format.
jpl06977.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

According to the file gpsn2.txt obtained from tycho.usno.navy.mil, PRN29/GPS29
was unusable from 1123 to 1903 UT on day 140 (May 20). Thus, data from this
satellite have been deweighted for the analysis of that day.

WARNING: Due to the maneuver of PRN29/GPS29, data from this satellite have               been deweighted for day 140 (May 20).

JPL LODR TABLE                               GPS week 697 (1993 May 16 - May 22)
  MJD       LODR     +/-
          (ms/day)
 49123.5    2.37     0.05
 49124.5    2.31     0.05
 49125.5    2.61     0.05
 49126.5    2.41     0.05
 49127.5    2.37     0.05
 49128.5    2.41     0.04
 49129.5    2.31     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 697 (1993 May 16 - May 22)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49123.5   .01317   .16986  -.29280  .00013  .00014  .00000  .0  .00  .00  .00  38 22  0
 49124.5   .01147   .17089  -.29501  .00013  .00013  .00000  .0  .01  .00  .00  38 22  0
 49125.5   .01073   .17190  -.29720  .00016  .00016  .00000  .0 -.02  .00  .00  37 22  0
 49126.5   .01013   .17286  -.29936  .00016  .00015  .00000  .0 -.06  .00  .00  36 22  0
 49127.5   .00850   .17383  -.30151  .00015  .00015  .00000  .0 -.03  .00  .00  39 22  0
 49128.5   .00670   .17460  -.30364  .00013  .00013  .00000  .0  .04  .00  .00  39 22  0
 49129.5   .00516   .17547  -.30575  .00013  .00014  .00000  .0  .03  .00  .00  36 22  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 697:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 697 (1993 May 16 - May 22)
      93  5 16   93  5 17   93  5 18   93  5 19   93  5 20   93  5 21   93  5 22
prn   3d rss (m)
  1       0.16       0.20       0.42       0.32       0.35       0.22       0.21
  2       0.09       0.16       0.41       0.45       0.31       0.23       0.18
  3       0.38       0.20       0.27       0.39       0.31       0.23       0.22
 12       0.28       0.24       0.29       0.27       0.40       0.23       0.21
 13       0.21       0.20       0.21       0.46       0.47       0.24       0.21
 14       0.22       0.37       0.38       0.36       0.38       0.39       0.25
 15       0.28       0.37       0.44       0.27       0.30       0.32       0.25
 16       0.21       0.18       0.18       0.28       0.19       0.21       0.19
 17       0.28       0.28       0.32       0.28       0.27       0.28       0.16
 18       0.52       0.36       0.38       0.52       0.32       0.51       0.51
 19       0.38       0.44       0.37       0.38       0.29       0.43       0.52
 20       0.48       0.34       0.20       0.31       0.31       0.39       0.42
 21       0.19       0.30       0.39       0.29       0.26       0.40       0.41
 22       0.48       0.54       0.37       0.41       0.39       0.48       0.44
 23       0.53       0.43       0.58       0.37       0.41       0.54       0.44
 24       0.16       0.18       0.18       0.27       0.38       0.24       0.20
 25       0.41       0.40       0.38       0.19       0.27       0.39       0.27
 26       0.40       0.43       0.47       0.51       0.36       0.37       0.43
 27       0.34       0.41       0.46       0.22       0.29       0.53       0.58
 28       0.33       0.34       0.50       0.64       0.52       0.61       0.69
 29       0.22       0.32       0.22    2291.22   #1695.30    1242.83       0.27
 31       0.55       0.32       0.52       0.58       0.58       0.58       0.63
_______________________
#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  5 16   93  5 17   93  5 18   93  5 19   93  5 20   93  5 21   93  5 22
prn   3d rss (m)
  1      17.8       16.1       15.7       14.6       13.6       15.9       16.7 
  2      17.8       15.4       16.4       18.2       17.1       20.6       21.3 
  3      12.4       10.4       10.3        9.4        8.8        8.5        9.2 
 12       2.2        3.0        4.5        4.5        6.6        4.9        5.3 
 13      12.3       18.5       18.7       14.3       10.7       11.0       10.0 
 14       4.8        3.9        3.9        4.8        4.6        4.0        5.2 
 15       5.1        6.5        3.6        6.4        5.5        4.5        4.2 
 16       6.1        6.3        5.8        6.6        9.5        9.3        7.1 
 17       4.2        5.7        7.4        6.1        4.5        4.4        6.1 
 18      11.5       16.3        7.4       16.3        8.7        8.7       11.6 
 19       3.4        3.6        4.0        9.0        6.5        5.3        4.5 
 20       6.0        6.3        4.9        6.3        6.9        6.5        7.5 
 21       5.6        3.4        3.4        5.9        7.6        4.1        3.8 
 22       7.5        7.1        6.1       10.6        9.9        6.0        9.2 
 23       3.3        4.9        4.1        4.9        6.1        5.0        4.4 
 24       8.8        9.8       10.6       12.3       10.4       10.0        9.1 
 25       9.9        8.9        6.4        7.7        9.1        8.0        6.8 
 26       6.6        5.4        6.0        6.6       10.2        9.4        6.1 
 27       4.9        4.3        4.7        5.0        9.3        7.2        7.7 
 28       5.9        5.3        4.7        6.2        6.7        4.8        4.7 
 29      16.8       14.9       14.8       14.5    #1997.2       26.2        4.1 
 31       9.0        7.0        6.2       11.6        8.8        7.3        8.7 
_______________________
#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 697 (1993 May 16 - May 22)
      93  5 16   93  5 17   93  5 18   93  5 19   93  5 20   93  5 21   93  5 22
Fiducials 7.8        7.9        6.6        6.7        6.9        7.8        7.7
Total    37.7       38.5       36.6       36.0       33.5       37.0       36.4
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 697 (1993 May 16 - May 22)
      93  5 16   93  5 17   93  5 18   93  5 19   93  5 20   93  5 21   93  5 22
site    % data
ALBH      108        109        109        109        106        105        102
ALGO      106        110         91         76         75        107        109
BRMU      111        111         90        112        104         66        109
DRAO      112        113        111        112        108        111        112
FAIR*      96        103        108        106        103        106        104
GGAO       76        111        109        109         91          9          0
GOLD      102        103         98         98         99        102        102
GRAZ      113        113        112         99         19        101        113
HART*     110        112         66        103        110        112        112
HERS      112        114        111        114        107        110        109
HOBA       97         80        100        111        107         36          0
JPLM       65         71         73         67         34         95         83
KOKB*     110        111         24          0         41        115        116
KOSG      113        116        114        114        108        113        115
KOUR      122        123        122        103         22        111        123
MADR*     112        113        112        112        106        109        102
MASP      115        117        116        105         20        100        109
MATE      100        110         94        104        100        103        107
MCMU      127        131        127        126        125        124        128
METS      112        118        116        115        108        114        116
NLIB      106        103        106         92         97        105        109
NYAL        0          0          0          0          0         26         73
ONSA      117        118        109        114        111         76         64
PAMA      106        111        108        108        107         97          0
PIE1      100        101        101        102         99         88          0
QUIN      104        107        108        100         92        110        108
RCM2      112        112        112        108        104        106        110
SANT*     112        112        113        108        103        103        105
STJO      108        111        112        114        103        114        114
TAIW      104        104        103        105        102        102        102
TIDB      119        118        119        118        114        116        118
TROM*     125        126        123        124        118        119        120
USUD        0          0          0         82        104        111         94
VNDP        0         26        112        103         73        112        113
WEST      112         69          0          0         19         22         96
WETT      107        109        109        110         96        109        110
YAR1*     114        116        116        116        113        114        111
YELL      108        115        106          0        104        120        119
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE