Subject: [IGSREPORT-1031] jpl07517.sum
From: David C. Jefferson
Date: Fri, 17 Jun 1994 9:13:37 PDT

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IGS Electronic Report    Fri Jun 17  9:13:37 PDT 1994      Message Number 1031
******************************************************************************

Author: David C. Jefferson
Subject: jpl07517.sum

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JPL ANALYSIS REPORT   GPS-WEEK 0751 (DAYS 149-155, DATES 1994 May 29 - Jun 04)
******************************************************************************

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/0751.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07517.sum           This text file.
jpl07517.erp           Earth rotation parameters for GPS week 751.
jpl0751[0-6].sp3       GPS ephemerides for GPS week 751, sp3 format.
______________________________________________________________________________

This week, we continue our new strategy of adding pseudorange data from several
chosen sites; see jpl07507.sum for details. 

Recently, a bug was introduced into our software which affected the orbit
products for week 751 only.  We have corrected the problem, and reprocessed the
entire week's data.  However, this correction was made AFTER two orbit files
had been posted for public use; namely jpl07510.sp3 and jpl07511.sp3.  These
files have been removed from the pub/jpligsac/0751 anonymous ftp directory of
sideshow.jpl.nasa.gov as of Wed Jun 15 13:48:12 PDT 1994.  They have also
been removed from the CDDIS as of Thu Jun 16 and are no longer considered
valid.  The replacement orbit files are being posted along with this summary
file.  We apologize for any inconvenience caused by this replacement.

Please note that because we were attempting to re-analyze the entire week
as expeditiously as possible, we chose to use a 20-station subset of the global
network.  The exclusion of other sites is not necessarily indicative of
problems at those stations.  The only day that was processed using the full
network of stations was day 155 (Jun 4).

The inclusion of HARV caused an excessive number of outliers in the analyses of
day 155.  We have deleted data from this site on this day.

WARNING: Data from NLIB excluded for the entire GPS week 751 (cable deficiency).
WARNING: Data from HARV excluded day 155 (Jun 4).

JPL LODR TABLE                               GPS week 751 (1994 May 29 - Jun 04)
  MJD       LODR     +/-
          (ms/day)
 49501.5    1.79     0.02
 49502.5    1.79     0.02
 49503.5    1.81     0.02
 49504.5    1.85     0.02
 49505.5    1.89     0.02
 49506.5    1.78     0.02
 49507.5    1.79     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 751 (1994 May 29 - Jun 04)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49501.5   .17755   .27594  -.16536  .00015  .00014  .00000  .0 -.05  .00  .00  20 25  0
 49502.5   .17680   .27364  -.16756  .00019  .00015  .00000  .0 -.10  .00  .00  19 25  0
 49503.5   .17531   .27108  -.16975  .00016  .00013  .00000  .0  .01  .00  .00  20 25  0
 49504.5   .17396   .26916  -.17193  .00014  .00013  .00000  .0  .07  .00  .00  20 25  0
 49505.5   .17330   .26707  -.17409  .00014  .00013  .00000  .0  .05  .00  .00  20 25  0
 49506.5   .17239   .26534  -.17624  .00011  .00011  .00000  .0  .04  .00  .00  20 25  0
 49507.5   .17095   .26310  -.17838  .00008  .00009  .00000  .0  .15  .00  .00  40 25  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 751:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 751 (1994 May 29 - Jun 04)
      94  5 29   94  5 30   94  5 31   94  6  1   94  6  2   94  6  3   94  6  4
prn   3d rss (m)
  1       0.72       0.50       0.30       0.55       0.73       0.90       0.99
  2       1.46       1.13       0.85       0.48       0.71       0.43       0.69
  4       1.06       0.73       0.45       0.54       0.47       0.55       0.94
  5       0.62       0.52       0.61       0.51       0.47       0.32       0.65
  6       0.84       0.55       0.27       0.31       0.61       0.36       0.70
  7       0.47       0.61       0.77       0.73       1.09       0.87       0.98
  9       0.50       0.79       0.79       0.68       0.63       0.68       1.19
 12       0.49       0.42       0.56       0.37       0.41       0.66       0.81
 14       0.56       0.44       0.36       0.31       0.42       0.41       0.50
 15       0.76       0.53       0.69       0.62       0.62       0.53       0.87
 16       1.33       1.02       0.34       0.40       0.59       0.62       0.47
 17       0.88       0.88       0.78       0.28       0.66       0.67       0.41
 18       0.51       0.73       0.41       0.50       0.37       0.43       0.54
 19       0.51       0.55       0.42       0.45       0.52       0.70       0.67
 20       0.33       0.40       0.27       0.83       0.99       0.58       0.39
 21       0.61       0.41       0.62       0.31       0.82       0.88       0.49
 22       1.16       0.65       0.83       0.57       0.59       0.51       0.69
 23       0.98       0.68       0.26       0.18       0.53       0.45       0.48
 24       0.72       0.69       0.58       0.46       0.47       0.61       0.81
 25       1.51       1.27       1.21       0.81       1.05       0.55       1.05
 26       0.82       1.03       0.55       0.62       0.41       0.53       0.70
 27       0.77       1.21       0.67       0.40       0.67       0.66       0.81
 28       0.74       0.46       0.61       0.43       0.39       0.43       0.56
 29       0.80       0.70       0.66       0.32       0.34       0.36       0.44
 31       0.52       0.73       0.52       0.53       0.52       0.52       0.64
_______________________
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 29   94  5 30   94  5 31   94  6  1   94  6  2   94  6  3   94  6  4
prn   3d rss (m)
  1       6.7        6.6        7.4        6.5        7.5        7.4        7.5 
  2       3.2        4.7        3.5        4.1        4.9        2.1        3.9 
  4      11.0       11.3        8.3        8.1        9.0        7.0        8.3 
  5       4.4        6.6        6.2        4.6        6.0        6.4        6.4 
  6       9.7        8.5        7.7        7.6        7.5        7.9        7.0 
  7       7.8        8.4        7.7        7.0        6.9        4.4        5.9 
  9       6.9        5.7        9.6        4.3        5.6        7.1        5.7 
 12       4.7        4.3        6.4        4.8        4.3        2.7        3.5 
 14       3.8        3.2        3.2        3.9        4.5        3.7        3.2 
 15       4.8        4.6        5.2        6.5        6.0        5.1        4.1 
 16       7.5        9.4        8.8        8.1        7.1        8.9        9.9 
 17       5.0        4.6        5.4        5.2        4.7        6.3        5.8 
 18       8.3        7.9        8.5       10.1       10.1        8.8        8.4 
 19       7.7        7.9        8.9        7.2        5.4        8.5        8.2 
 20       3.3        5.1        5.7        4.2        3.0        3.4        3.2 
 21       3.2        4.6        7.5        7.4        4.1        3.2        4.6 
 22       6.0        5.1        3.4        3.6        3.1        3.9        5.5 
 23       2.2        1.8        2.8        2.1        1.5        2.1        2.8 
 24      10.4       10.4        9.3        8.4        8.7        7.0        8.4 
 25       8.0        7.6        6.9        5.9        5.5        6.0        6.9 
 26       5.2        5.0        3.9        3.8        4.0        3.7        3.4 
 27      13.7       13.2       12.3       13.4       10.1        9.1       11.1 
 28       5.6        6.7        5.5        4.6        4.8        3.5        3.6 
 29       5.3        6.3        7.0        5.9        5.4        5.3        5.7 
 31       5.6        5.2        4.9        6.4        6.7        4.7        5.3 
_______________________
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 751 (1994 May 29 - Jun 04)
      94  5 29   94  5 30   94  5 31   94  6  1   94  6  2   94  6  3   94  6  4
Fiducial 12.6       12.0       12.5       13.3       13.2       13.4       12.6
Total    18.4       18.8       19.6       19.9       20.4       20.5       38.5
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 751 (1994 May 29 - Jun 04)
      94  5 29   94  5 30   94  5 31   94  6  1   94  6  2   94  6  3   94  6  4
site    % data
ALBH        0          0          0          0          0          0        104
ALGO*     103        104        104        102        102        102        102
AREQ      107        107        108        106        106        106        108
BRMU        0          0          0          0          0          0         84
CHTP        0          0          0          0          0          0         91
DRAO        0          0          0          0          0          0        107
FAIR*     104         92         93        102        103        104        103
FORT       51         66        101         99        100         99          0
GOLD*      98         85         84         86         83         86         87
GRAZ        0          0          0          0          0          0        105
HART*      99        102        103        105        104        107        105
HERS        0          0          0          0          0          0        102
HOBA       12         96         83         38        103        103        101
JPLM        0          0          0          0          0          0        109
KIRU        0          0          0          0          0          0        104
KOKB*      50          0         36        108        108        112        111
KOSG*     100        104        104        102         99        104        106
KOUR        0          0          0          0          0          0        100
MADR*      99        103        100        103         99        103        102
MASP        0          0          0          0          0          0        107
MATE        0          0          0          0          0          0        105
MCMU      114        114        113        111        113        114          0
MDO1        0          0          0          0          0          0        103
METS        0          0          0          0          0          0        104
NYAL        0          0          0          0          0          0        113
ONSA      102        103        104        103        102         95         58
PAMA       97         94        101        100        100        102         99
PIE1        0          0          0          0          0          0         94
QUIN        0          0          0          0          0          0        100
RCM5        0          0          0          0          0          0        106
SANT*     102        101        106        107        103         94         16
STJO        0          0          0          0          0          0        103
TAIW        0          0          0          0          0          0        107
TIDB*      99        106        106        103        103        106        107
TROM*     107        107        108        108        104        106        105
TSKB      103        103        105         98        101         88         95
USUD        0          0          0          0          0          0         83
WEST        0          0          0          0          0          0        102
WETT*      99        106        105        105        103        106        106
YAR1*      89         84         98        104        104        106        106
YELL*     106        105        102         98        104        102        101
_______________________
*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 751 (1994 May 29 - Jun 04)
      94  5 29   94  5 30   94  5 31   94  6  1   94  6  2   94  6  3   94  6  4
comp log10(rms/ps)
PRN01     4.3        3.7        4.0        4.3        4.3        4.7        4.7
PRN02     4.1        4.5        4.5        3.9        4.1        4.7        4.9
PRN04     3.9        4.0        4.1        3.9        4.0        4.3        3.4
PRN05     3.5        3.2        3.7        3.9        4.1        3.2        3.9
PRN06     4.3        4.0        4.2        3.5        4.3        3.3        3.4
PRN07     3.6        4.1        3.9        3.8        3.9        4.7        4.9
PRN09     3.6        4.1        4.2        4.3        4.1        4.5        4.3
PRN12     4.2        4.2        4.1        4.1        4.1        4.5        4.4
PRN14     4.1        4.1        3.7        4.3        4.2        4.5        4.7
PRN15     4.8        4.2        4.2        4.3        4.0        4.4        4.3
PRN16     3.9        3.7        3.9        3.8        3.9        3.9        3.3
PRN17     4.4        3.6        4.3        3.7        3.9        4.6        3.7
PRN18     3.2        3.7        3.7        3.2        4.1        4.0        3.9
PRN19     4.5        3.8        3.7        3.8        4.2        3.9        4.4
PRN20     3.8        4.0        3.9        3          4          4.0        4.2
PRN21     4.5        4.0        4.3        4.5        4.2        4.3        4.0
PRN22     3.8        3.5        3.8        3.9        4.5        4.6        3.8
PRN23     4.7        4.0        4.5        4.1        4.4        4.8        7.1
PRN24     3.5        3.4        3.5        3.0        4.1        4.2        4.0
PRN25     4.1        3.9        4.2        3.9        4.3        3.9        4.2
PRN26     4.6        3.2        3.9        3.8        3.8        4.6        3.6
PRN27     3.9        3.8        3.6        3.2        4.0        3.0        3.6
PRN28     4.6        3.5        4.5        4.1        3.7        4.8        4.0
PRN29     3.8        4.0        3.7        4.3        3.9        3.9        3.9
PRN31     4.5        4.4        4.4        4.2        4.5        3.9        4.1
ALBH                                                                        6  
AREQ      3.8        3.9        3.5        3.9        3.8        4.0        3.9
BRMU                                                                        3  
CANB      4.5        3.7        4.0        4.4        4.4        4.6        5.3
CHTP                                                                        6  
FAIR      3.6        3.9        4.0        3.3        3.6        3.9        5.7
FORT      3.7        3.3        3.4        3.5        3.8        3             
GOLD      4.0        4.1        4.1        3.8        3.8        3.7        5.5
GRAZ                                                                        6  
HART      4.5        4.1        3.8        3.9        4.0        4.8        5.5
HERS                                                                        5  
HOBA      3          3.6        4          4.2        4.4        4.5        4.2
JPLM                                                                        6  
KIRU                                                                        6  
KOKB      3                     3          3.7        3.9        3.9        5.3
KOSG      3.5        3.1        3.1        3.6        3.1        3.9        4.0
KOUR                                                                        6  
MADR      3.3        3.4        3.5        3.4        3.5        4.0        5.4
MASP                                                                        4  
MATE                                                                        5  
MCMU      4.4        3.9        3.8        4.1        3.9        4             
METS                                                                        5  
NALL                                                                        4  
ONSA      3.3        3.2        2.9        3.3        3.5        3.8        4  
PAMA      4.3        4.2        4.2        3.9        4.4        4.2        5.5
PENT                                                                        6  
PIE1                                                                        6  
QUIN                                                                        6  
RCM5                                                                        5  
SANT      4.2        3.8        3.9        4.0        4.0        3.5        4  
STJO                                                                        6  
TAIS                                                                        3  
TROM      3.9        3.9        4.2        3.9        3.9        4.4        5.1
TSKB      3.4        3.3        3.8        3.9        3.9        4          3.9
USUD                                                                        4  
WEST                                                                        5  
WETB      3.9        3.8        3.9        3.5        3.4        4.0        5.3
YAR1      4.2        4          4.2        4.3        4.3        4.6        4.4
YELL      3.2        3.0        2.9        3.3        3.3        3.2        3.5
_______________________
END CLOCK REPEATABILITY TABLE