Subject: [IGSREPORT-0981] jpl07487.sum
From: David C. Jefferson
Date: Tue, 24 May 1994 10:00:40 PDT

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IGS Electronic Report    Tue May 24 10:00:40 PDT 1994      Message Number 0981
******************************************************************************

Author: David C. Jefferson
Subject: jpl07487.sum

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JPL ANALYSIS REPORT   GPS-WEEK 0748 (DAYS 128-134, DATES 1994 May 08 - May 14)
******************************************************************************

Submitted by the JPL IGS/FLINN Analysis Team:

J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb

all at the Jet Propulsion Laboratory, California Institute of Technology, 
Pasadena, CA  91109.

Files listed below are available in Unix compressed format and can be
retrieved using anonymous ftp to sideshow.jpl.nasa.gov (128.149.70.41),
directory pub/jpligsac/0748.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07487.sum           This text file.
jpl07487.erp           Earth rotation parameters for GPS week 748.
jpl0748[0-6].sp3       GPS ephemerides for GPS week 748, sp3 format.
______________________________________________________________________________

Including BRMU in the solution for days 129 and 130 (May 9, 10) caused
atypically high clock repeatability values on their respective previous days
(May 8, 9).  Also, the inclusion of RCM5 caused an excessive number of outliers 
in our solutions for days 131 and 132 (May 11,12).  We have excluded these
sites from our analyses on the corresponding days.

We continue to exclude data from WEST; see IGS Mail Message 585 for details.
Also, according to IGS Mail Message 597, the receiver at VNDP was replaced on
day 133 (May 13).  Data from this site was not available for this or subsequent
days of this week at the time of processing.

As noted in several of our recent analysis reports, it has been necessary
to exclude NLIB on numerous days of processing.  We understand that poor
performance at this site is possibly being caused by a faulty receiver cable.
We have chosen to delete data from NLIB indefinitely, pending further notice
that the data from this site are consistently usable.

WARNING: Data from NLIB and WEST excluded for the entire GPS week 748.
WARNING: Data from BRMU excluded days 129 and 130 (May 9, 10).
WARNING: Data from RCM5 excluded days 131 and 132 (May 11, 12).
WARNING: No data from VNDP days 133 and 134 (May 13, 14).

JPL LODR TABLE                               GPS week 748 (1994 May 08 - May 14)
  MJD       LODR     +/-
          (ms/day)
 49480.5    2.45     0.02
 49481.5    2.45     0.01
 49482.5    2.41     0.01
 49483.5    2.47     0.01
 49484.5    2.43     0.01
 49485.5    2.46     0.01
 49486.5    2.42     0.01
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 748 (1994 May 08 - May 14)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49480.5   .18654   .31822  -.11441  .00015  .00013  .00000  .0 -.04  .00  .00  44 25  0
 49481.5   .18705   .31588  -.11692  .00010  .00011  .00000  .0  .09  .00  .00  43 25  0
 49482.5   .18775   .31368  -.11941  .00009  .00010  .00000  .0  .03  .00  .00  41 25  0
 49483.5   .18829   .31203  -.12190  .00009  .00012  .00000  .0  .00  .00  .00  41 25  0
 49484.5   .18897   .31019  -.12438  .00008  .00009  .00000  .0  .02  .00  .00  42 25  0
 49485.5   .18942   .30789  -.12685  .00008  .00009  .00000  .0 -.04  .00  .00  42 25  0
 49486.5   .18929   .30601  -.12932  .00009  .00009  .00000  .0 -.01  .00  .00  41 25  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 748:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 748 (1994 May 08 - May 14)
      94  5  8   94  5  9   94  5 10   94  5 11   94  5 12   94  5 13   94  5 14
prn   3d rss (m)
  1       0.78       0.76       0.82       0.77       0.90       0.85       0.97
  2       0.77       0.50       0.64       0.58       0.72       0.71       0.47
  4       0.46       0.49       0.46       0.36       0.55       0.55       0.56
  5       0.39       0.32       0.32       0.40       0.34       0.44       0.40
  6       1.33       0.86       0.76       0.75       0.80       1.46       1.43
  7       1.04       1.64       1.39       1.11       1.28       1.15       1.21
  9       1.02       1.03       0.87       1.02       1.21       1.26       1.20
 12       0.45       0.29       0.32       0.36       0.37       0.35       0.31
 14       0.49       0.84       0.35       0.48       0.20       0.35       0.28
 15       0.65       0.92       0.56       1.18       0.80       0.66       0.81
 16       0.41       0.36       0.23       0.22       0.33       0.43       0.38
 17       1.29       1.12       0.91       0.85       0.89       0.85       0.96
 18       0.6        0.33       0.71       0.56       0.33       0.59       0.46
 19       1.03       0.80       0.80       0.71       0.76       1.01       0.79
 20       0.75       0.43       0.41       0.31       0.42       0.33       0.43
 21       0.25       0.24       0.52       0.69       0.47       0.36       0.60
 22       0.41       0.69       0.50       0.40       0.41       0.48       0.43
 23       0.27       0.33       0.47       0.35       0.39       0.13       0.39
 24       0.48       0.37       0.48       0.46       0.43       0.55       0.51
 25       0.88       1.20       0.76       0.72       0.59       0.92       1.16
 26       0.67       0.83       0.69       0.66       0.71       0.60       0.98
 27       0.93       0.62       0.75       0.58       0.75       0.86       0.72
 28       0.68       0.68       0.87       1.02       0.82       0.81       0.59
 29       0.45       0.33       0.33       0.72       0.37       0.40       0.32
 31       0.53       0.68       0.69       0.77       0.77       0.63       0.65
_______________________
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
      94  5  8   94  5  9   94  5 10   94  5 11   94  5 12   94  5 13   94  5 14
prn   3d rss (m)
  1      10.5        9.7        9.8        9.6        8.7        8.1        6.9 
  2       5.1        4.7        4.4        4.4        3.0        3.6        4.3 
  4       8.0        8.2        8.2        9.0        8.6       10.4       11.5 
  5       3.3        3.9        4.1        4.3        3.5        2.7        2.8 
  6       6.3        7.2        7.7        6.5        6.6        6.8        5.9 
  7      10.1       10.1       10.3        9.8        9.6        8.7        7.3 
  9       3.6        5.1        4.5        3.4        3.9        5.1        5.3 
 12       2.8        3.0        1.9        2.9        3.3        3.7        2.2 
 14       4.7        4.1        3.6        4.0        4.3        4.6        4.4 
 15       7.8        5.2        4.1        3.9        4.5        5.7        4.2 
 16       4.0        4.2        4.2        6.4        6.2        8.2        6.9 
 17       4.9        4.0        3.5        4.5        3.4        3.8        4.2 
 18       6.9        8.1        9.1       16.5       10.1        9.8        8.3 
 19       5.5        4.8        3.2        3.6        4.3        6.2        6.0 
 20       5.9        7.0        6.7        6.3        6.2        6.0        4.7 
 21       5.0        4.5        3.6        3.4        5.6        4.0        5.5 
 22       6.1        3.2        3.5        3.0        3.3        4.5        6.1 
 23       5.3        3.7        4.6        4.6        2.6        3.3        4.5 
 24       6.4        6.7        6.3        7.5        7.0        6.6        7.9 
 25       6.0        7.1        5.3        5.2        7.4       10.5        8.7 
 26       4.0        6.2        5.5        4.9        7.0        5.5        4.1 
 27       6.6        5.0        6.5        8.7        6.5        7.9        6.6 
 28       4.2        4.2        4.1        4.4        5.2        5.4        5.6 
 29       8.5        6.3       29.4        6.0        6.2        8.2        7.7 
 31       7.1        5.8        5.3        4.8        5.1        5.3        5.4 
_______________________
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 748 (1994 May 08 - May 14)
      94  5  8   94  5  9   94  5 10   94  5 11   94  5 12   94  5 13   94  5 14
Fiducial 10.4       10.6       10.9       10.5       11.5       11.4       11.6
Total    39.0       38.3       37.4       36.8       38.1       39.0       38.3
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 748 (1994 May 08 - May 14)
      94  5  8   94  5  9   94  5 10   94  5 11   94  5 12   94  5 13   94  5 14
site    % data
ALBH       93        100        102        103         90        105        103
ALGO*     105        104        104        103         93        102        102
AREQ      104        105        105        105        105        105        105
BRMU      103          0          0         58         73         83        100
CHTP       93         89         90         87         86         87         94
DRAO      108        107        107        107         97        107        108
FAIR*     105        105        105        105        106        105        107
FORT      103        104        104        104        103        103          0
GODE       99         98        103        103         98        101        102
GOLD*      83         91         90         85         75         84         79
GRAZ       60        106        106        106        106        107        106
HART*      72         92         93          0         74         35         51
HARV      109        108        110        110        110        108        106
HERS       74         64         59         61         66         68         75
HOBA      104        104        104        106        106        105        105
JPLM      105        106        107        108         99          0          0
KIRU      104        104          0        104          0         94         87
KOKB*       9         43        112        111        113        111        111
KOSG*      87         84         74         87         93         84         92
KOUR       97         98         99         99        100        100        101
MADR*      81         76         63         78         72         69         79
MASP      107        108        108        108        107        108        107
MATE       78         59         59         38         53         68         67
MCMU      113        113        113        114        113        115        116
MDO1      104        107        106        106        105        105        100
METS       73         67          0         38        103        102        104
NYAL      111        113        114        114        114        114        113
ONSA      103         96        102        102        102        102        103
PAMA       80         70         66          0         59         56         68
PIE1      100        103        105        102        102        103         99
QUIN      100        105        104        102        105        102        102
RCM5      106        105         80          0          0        104        106
SANT*      72         38         48         52         80         96         98
STJO       15         26        106        105         95        105        105
TAIW       99         90         81         21         52         93         86
TIDB*      73         66         61         78         92         87         86
TROM*     103        102        100        101        101        101        101
TSKB      105        107        106        106        105        104        104
USUD      102        102        101        102        101        103         97
VNDP      107        109        107        110         99          0          0
WETT*      79         80         70         75         76         77         73
YAR1*      74         70         67         70         82         87         76
YELL*     102        106        103        104         95        105        102
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE

As described in IGS Report No. 634, the table below indicates the repeatability
of clock solutions for all satellites and stations used in this week's analysis:

JPL CLOCK REPEATABILITY TABLE                GPS week 748 (1994 May 08 - May 14)
      94  5  8   94  5  9   94  5 10   94  5 11   94  5 12   94  5 13   94  5 14
comp log10(rms/ps)
PRN01     4.0        3.9        4.0        4.1        3.6        4          3.6
PRN02     3.8        4.0        3.6        4          3          4          4  
PRN04     3.3        3.8        3.7        4.1        3.8        3          3.6
PRN05     3.6        4.1        4.0        4.0        3.7        3          3.7
PRN06     4.4        4.0        4.3        4.1        3.6        3          3.7
PRN07     4.1        4.1        4.0        3.9        3.8        4          3.7
PRN09     3.9        4.0        4.0        4.2        3.4        4          3.8
PRN12     3.8        3.9        4.1        4.1        3.9        3          4.1
PRN14     4          3.8        4.1        4          4.1        4          4  
PRN15     4.0        4.2        4.1        4          4          4          4  
PRN16     3.5        3.9        3.7        4.1        3.8        3          3.8
PRN17     4.0        4.2        4.3        4.3        4.3        4          4.4
PRN18     4          4.1        4.0        4.1        3.9        4          3.9
PRN19     3.9        3.9        3.7        3.9        3.8        4          3  
PRN20     3.6        3.7        3.9        4.1        3.9        4          3.9
PRN21     4.1        4.1        4.3        4.5        4.3        5          4.4
PRN22     4.1        4.1        3.7        4.0        4.3        4          4.2
PRN23     3.6        3.8        3.9        4.0        3.7        3          3.8
PRN24     3.7        3.7        3.5        4.2        4.2        4          3.8
PRN25     3.8        3.8        4.0        4.1        3.7        3          3.8
PRN26     4.0        3.6        3.8        4.0        3.6        3          3.6
PRN27     3.8        3.4        3.6        4.1        3.3        3          3.2
PRN28     4.0        3.7        3.5        4.0        3.6        4          3.9
PRN29     3.8        4.1        4.1        4.1        4.0        4          3.6
PRN31     4          3.9        3.9        4.2        3.6        4          4.0
ALBH      3.8        3.8        3.9        4.0        3.7        3          3.5
AREQ      4.3        4.0        3.7        4.0        3.9        4          3.7
BRMU      3                                4          3.8        3          3.5
CANB      3.6        3.6        3.5        3.7        2.9        4          3.6
CHTP      3.8        4.1        4.0        4.2        3.9        4          4.1
FAIR      3.7        3.8        3.8        4.0        3.5        4          3.7
FORT      4.1        3.9        3.7        3.9        3.1                      
GODE      3.9        3.8        3.6        3.9        3.6        4          3.6
GOLD      3.6        3.9        3.7        4.0        3.5        4          3.8
GRAZ      4          4.2        4.0        4.3        4.0        4          4.0
HART      3.9        3.8        4                     4                     3  
HARV      4.0        3.9        4.0        4.1        3.7        4          4.0
HERS      4.7        3.8        3.8        4.1        3.9        4          4.2
HOBA      3.9        3.6        3.5        3.7        3.6        4          3.8
JPLM      3.7        3.8        3.7        4.0        4                        
KIRU      4.1        3                                           4          3.7
KOKB      3          4          3.7        3.9        3.8        4          3.8
KOSG      3.9        3.4        3.7        4.0        3.5        4          4.1
KOUR      4.4        4.2        4.3        4.0        4.2        4          4.3
MADR      3.5        3.7        3.9        4          3.7        4          3.9
MASP      4.2        4.3        4.1        4.1        2.7        4          3.8
MATE      3.8        3.9        3.9        4          4          4          3.9
MCMU      3.7        3.8        3.8        3.8        3.6        4          3.7
MDO1      3.5        3.9        3.8        4.0        3.8        4          3.9
METS      3.9        4                     4          4.2        4          4.2
NALL      4.0        4.3        4.3        4.2        4.0        4          4.1
ONSA      3.7        3.3        3.9        3.8        3.5        4          3.3
PAMA      4.1        3.6        4                     4          4          3.6
PENT      3.9        3.8        3.8        4.0        3.4        4          3.8
PIE1      3.4        3.9        3.9        4.1        3.7        4          3.8
QUIN      3.8        4.0        4.0        4.2        3.9        4          4.0
RCM5      3.8        4.0        4                                3          3.5
SANT      3.6        4.0        4.0        3.9        3.8        4          3.5
STJO      2          4          3.5        4.0        3.5        3          3.5
TAIS      3.8        3.1        3.8        4          4          4          3.8
TROM      4.1        4.2        3.9        4.3        4.2        4          3.8
TSKB      3.8        3.5        3.8        3.9        3.3        4          3.7
USUD      3.8        2.9        3.4        3.8        3.8        4          3.8
VNDP      3.7        3.9        3.9        4.0        4                        
WETB      3.7        3.7        3.4        4.0        3.8        4          4.1
YAR1      3.9        3.6        3.5        3.8        3.9        3          3.7
YELL      3.9        3.7        3.7        4.0        3.4        3          3.4
_______________________
END CLOCK REPEATABILITY TABLE