Subject: [IGSREPORT-429] JPL07057.SUM
From: G. Blewitt
Date: 11 AUG 1993 08:55:06

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IGS Electronic Report     11-AUG-1993 08:55:06       Message Number 429
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From: G. Blewitt
Subj: JPL07057.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
______________________________________________________________________________
jpl07057.sum           This text file.
jpl07057.erp           Earth rotation parameters for GPS week 705.
jpl07057.sp1           GPS ephemerides for GPS week 705, sp1 format.
jpl07057.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

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. 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 PRN09/GPS39 have been excluded for the entire GPSweek 705.

JPL LODR TABLE                               GPS week 705 (1993 Jul 11 - Jul 17)
  MJD       LODR     +/-
          (ms/day)
 49179.5    1.61     0.04
 49180.5    1.55     0.04
 49181.5    1.66     0.04
 49182.5    1.62     0.04
 49183.5    1.54     0.04
 49184.5    1.59     0.04
 49185.5    1.64     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 705 (1993 Jul 11 - Jul 17)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49179.5  -.06690   .22160   .58236  .00011  .00012  .00000  .0  .02  .00  .00  41 23  0
 49180.5  -.06758   .22294   .58078  .00011  .00013  .00000  .0  .01  .00  .00  39 23  0
 49181.5  -.06848   .22411   .57922  .00013  .00015  .00000  .0  .01  .00  .00  37 23  0
 49182.5  -.06951   .22505   .57767  .00014  .00018  .00000  .0  .05  .00  .00  39 23  0
 49183.5  -.07015   .22689   .57613  .00013  .00016  .00000  .0  .07  .00  .00  40 23  0
 49184.5  -.07105   .22846   .57459  .00012  .00015  .00000  .0  .10  .00  .00  41 23  0
 49185.5  -.07151   .22987   .57307  .00013  .00017  .00000  .0  .09  .00  .00  38 23  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 705:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 705 (1993 Jul 11 - Jul 17)
      93  7 11   93  7 12   93  7 13   93  7 14   93  7 15   93  7 16   93  7 17
prn   3d rss (m)
  1       0.60       0.50       0.76       0.71       0.74       0.66       0.53
  2       0.22       0.10       0.21       0.34       0.39       0.28       0.27
  3       0.22       0.23       0.15       0.28       0.35       0.29       0.25
  7       0.32       0.30       0.20       0.67       0.38       0.35       0.47
 12       0.47       0.49       0.44       0.38       0.38       0.38       0.18
 13       0.22       0.31       0.33       0.22       0.24       0.27       0.28
 14       0.27       0.34       0.55       0.44       0.53       0.35       0.24
 15       0.77       0.87       1.19       0.88       0.70       0.50       0.32
 16       0.12       0.16       0.22       0.28       0.15       0.14       0.15
 17       0.23       0.10       0.21       0.25       0.23       0.15       0.24
 18       0.40       0.59       0.64       0.48       0.38       0.38       0.34
 19       0.16       0.18       0.30       0.57       0.31       0.14       0.27
 20       0.36       0.38       0.55       0.28       0.36       0.22       0.47
 21       0.39       0.33       0.28       0.43       0.44       0.52       0.42
 22       0.25       0.25       0.31       0.30       0.23       0.25       0.26
 23       0.24       0.19       0.22       0.27       0.32       0.13       0.13
 24       0.16       0.16       0.30       0.29       0.14       0.18       0.21
 25       0.45       0.33       0.25       0.35       0.34       0.28       0.26
 26       0.24       0.19       0.08       0.21       0.16       0.14       0.21
 27       0.15       0.17       0.16       0.23       0.20       0.19       0.27
 28       0.14       0.17       0.30       0.16       0.28       0.15       0.25
 29       0.28       0.39       0.74       0.56       0.19       0.22       0.25
 31       0.49       0.43       0.33       0.29       0.18       0.33       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 11   93  7 12   93  7 13   93  7 14   93  7 15   93  7 16   93  7 17
prn   3d rss (m)
  1       5.7        6.5        5.5        5.8        4.3        5.3        5.6 
  2       7.0        6.5        4.8        6.9        8.9        8.8        8.0 
  3       6.6       10.1        8.1        6.7        7.2        6.8       10.0 
  7      16.2       14.5       14.7       17.5       14.0       14.6       19.7 
 12      28.2       24.6       10.5        8.7        6.01       8.0       10.1 
 13       6.0        6.6       11.1        6.8        5.9        7.5        7.1 
 14       4.9        4.5        4.5        5.1        5.9        5.9        6.3 
 15       6.1        5.5        9.5       11.6        6.8        5.7        7.0 
 16       6.4        5.9        7.2        8.8       11.1       10.5       14.6 
 17       7.9       10.4       10.1        6.3        7.9        9.4       11.0 
 18      11.5       12.6        8.8        6.5       12.0       11.7        9.0 
 19       7.0        5.1        6.0        7.0        6.8        4.5        4.5 
 20       3.7        4.9        4.6        4.4        4.0        3.4        5.0 
 21       7.5        7.6        5.7        6.0        6.6        6.7        7.2 
 22       5.7        5.5        5.6        6.2        5.5        5.5        5.8 
 23       6.8        9.3        5.9        4.0        9.9       10.1       18.1 
 24      12.0       11.0       14.6       14.5       17.8       17.1       16.8 
 25       5.1        5.1        5.0        5.2        5.8        5.4        6.9 
 26       3.1        3.7        6.0        4.0        8.7        5.0        4.9 
 27       7.9        5.5        6.4        6.6        7.1        8.4        8.3 
 28       4.4        4.8        4.6        4.6        5.0        3.7        5.0 
 29       7.0        5.1        5.4        4.8        4.5        4.8        5.8 
 31      15.4       17.6       16.7       15.7       16.2       15.4       13.9 
_______________________
#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 705 (1993 Jul 11 - Jul 17)
      93  7 11   93  7 12   93  7 13   93  7 14   93  7 15   93  7 16   93  7 17
Fiducials 9.1        8.1        8.0        7.2        8.2        7.2        7.0
Total    40.4       35.6       34.6       35.7       38.5       37.1       33.8
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 705 (1993 Jul 11 - Jul 17)
      93  7 11   93  7 12   93  7 13   93  7 14   93  7 15   93  7 16   93  7 17
site    % data
ALBH      101        104        105        104        104        104        102
ALGO*      96        101        101        101        101        102        101
BRMU       61         89        100        100         86         54        102
DRAO      107        106        107        107        107        108        106
FAIR*      86         88         89         90         89         91         91
FORT       83         90          0          0         74        115         75
GOLD       93         95       ^195       ^196         99        196         96
GRAZ       99        101        102        102        102         99        103
HART*     100        100         96        102        103        106        104
HERS      102        103         89        102        104        102        100
HOBA       99         84          0         48        103        103        102
JPLM      105        106        107        108        107        107        105
KOD1      100         96         97         95         95         93         93
KOKB*     106        107        106        105        104        105         99
KOSG      104        105        105        105        105        105        105
KOUR      108        108        108        108        108        108         98
MADR*      96         95         97         98         98         97         95
MASP      103        104        104        106       ^113        104        104
MATE       96         98         96         97         96         92         95
MCMU      111        114        102          0        106        117        117
MDO1     ^102          0          0          0          0          0          0
METS     ^214        108        108        108       ^202         98         28
NLIB       91         91         90         91         94         91         88
NYAL        0          2         10         21        ^34         10         14
ONSA      107        104        103        102        101         99         98
PAMA       97         89         97         99        100         90          0
PIE1       91         92         91         91         91         91         91
PINY       90         92         92         93         93         93         83
QUIN       93          0         40         89          9          7         73
RCM2       94          0          0         22         89         89         95
SANT*     102        101        103        102        103        102        101
STJO      104        104        104        104        104        106        100
TAIW       85         78          0         78         87         90         89
TIDB      103        103        105        106        106        106         96
TROM*    ^217        113        114        126       ^217        121        111
VNDP      105        106        107        107        107        107        107
WEST      102        102        101        102        102        101        100
WETT       67         65         86         88         97         73          0
YAR1*     107        106         94          0          0          0          0
YELL      108        110        110        110        111        111        110
_______________________
*Indicates fiducial site; #indicates deweighted site; ^indicates duplicate data.
END GROUND STATION INCLUSION TABLE