Subject: [IGSREPORT-0660] JPL Analysis Report (week 723)
From: David C. Jefferson
Date: Thu, 16 Dec 1993 14:43:51 PST

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IGS Electronic Report    Thu Dec 16 14:43:51 PST 1993      Message Number 0660
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Author: David C. Jefferson
Subject: JPL Analysis Report (week 723)

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JPL ANALYSIS REPORT   GPS-WEEK 0723 (DAYS 318-324, DATES 14-11-93 TO 20-11-93)
******************************************************************************

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 sent to the CDDIS:

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07237.sum           This text file.
jpl07237.erp           Earth rotation parameters for GPS week 723.
jpl0723[0-6].sp3       GPS ephemerides for GPS week 723, sp3 format.
______________________________________________________________________________

Following our previous experiences with HOBA (Hobart, Tasmania), we have
elected to exclude this site from our processing for the entire week of
analysis.  Also, as indicated in the Ground Station Inclusion Table, ALGO
(Algonquin Park, Canada) had an atypically small amount of data for day 323
(Nov 19).  We have subsequently changed our reference clock to FAIR (Fairbanks,
Alaska) for this day only.  The larger-than-normal values for clock
repeatabilities on days 322-324 presumably reflect a 1 microsecond difference
between the ALGO and FAIR clocks.

WARNING: Data from HOBA have been excluded the entire GPS week 723.
WARNING: FAIR (not ALGO) was used as the reference clock for day 323 (Nov 19).

JPL LODR TABLE                               GPS week 723 (1993 Nov 14 - Nov 20)
  MJD       LODR     +/-
          (ms/day)
 49305.5    2.63     0.04
 49306.5    2.57     0.04
 49307.5    2.43     0.04
 49308.5    2.48     0.04
 49309.5    2.39     0.04
 49310.5    2.19     0.04
 49311.5    2.27     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 723 (1993 Nov 14 - Nov 20)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49305.5  -.04928   .43861   .31851  .00012  .00013  .00000  .0  .05  .00  .00  36 25  0
 49306.5  -.04803   .43970   .31602  .00012  .00013  .00000  .0  .05  .00  .00  36 25  0
 49307.5  -.04678   .44012   .31353  .00012  .00013  .00000  .0  .06  .00  .00  37 25  0
 49308.5  -.04589   .44131   .31104  .00012  .00012  .00000  .0  .08  .00  .00  37 25  0
 49309.5  -.04526   .44260   .30122  .00012  .00013  .00000  .0  .09  .00  .00  36 25  0
 49310.5  -.04450   .44338   .29883  .00012  .00014  .00000  .0  .08  .00  .00  37 25  0
 49311.5  -.04455   .44455   .29647  .00012  .00013  .00000  .0  .05  .00  .00  37 25  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 723:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 723 (1993 Nov 14 - Nov 20)
      93 11 14   93 11 15   93 11 16   93 11 17   93 11 18   93 11 19   93 11 20
prn   3d rss (m)
  1       0.25       0.16       0.19       0.24       0.25       0.25       0.21
  2       0.43       0.25       0.46       0.37       0.22       0.37       0.30
  3       0.34       0.33       0.20       0.37       0.24       0.32       0.31
  5       0.23       0.24       0.28       0.19       0.21       0.28       0.53
  7       0.23       0.13       0.35       0.44       0.27       0.30       0.22
  9       0.47       0.33       0.21       0.09       0.54       0.86       2.16
 12       0.30       0.42       0.47       0.44       0.41       0.32       0.35
 13       0.20       1.41       1.29       0.65       0.76       0.42       0.41
 14       0.28       0.29       0.25       0.43       0.34       0.21       0.28
 15       0.26       0.28       0.27       0.47       0.42       0.28       0.19
 16       0.37       0.57       0.28       0.55       0.41       0.60       0.45
 17       0.33       0.40       0.33       0.37       0.23       0.45       0.56
 18       0.21       0.27       0.25       0.29       0.18       0.26       0.34
 19       0.19       0.25       0.24       0.24       0.32       0.28       0.22
 20       0.19       0.14       0.10       0.13       0.21       0.14       0.34
 21       0.25       0.23       0.31       0.23       0.38       0.35       0.40
 22       0.27       0.19       0.11       0.21       0.15       0.12       0.10
 23       0.42       0.36       0.41       0.55       0.82       0.53       0.67
 24       0.39       0.50       0.47       0.48       0.28       0.45       0.32
 25       0.13       0.14       0.14       0.13       0.13       0.15       0.19
 26       0.30       0.33       0.31       0.34       0.42       0.56       1.73
 27       0.11       0.17       0.22       0.25       0.18       0.29       0.31
 28       0.29       0.28       0.29       0.39       0.28       0.28       0.47
 29       0.13       0.12       0.21       0.19       0.15       0.15       0.19
 31       0.45       0.33       0.46       0.51       0.39       0.35       0.31
_______________________
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 11 14   93 11 15   93 11 16   93 11 17   93 11 18   93 11 19   93 11 20
prn   3d rss (m)
  1       6.4        6.6        8.2        7.9        7.9        8.0        6.4 
  2       5.7        5.7        6.5        6.0        6.2        4.8        3.4 
  3      11.9       10.5       12.1       10.9       10.9       11.8       12.8 
  5      15.3       15.1       15.1       11.0       12.7       17.2       15.0 
  7      12.0       10.8       10.9        9.3        8.4        8.4        8.9 
  9      67.5       77.8       88.6      100.2      111.2      122.4      133.4 
 12       3.9        3.4        3.1        3.6        3.6        2.7        3.0 
 13      38.2       45.0       31.5       20.2       22.7        9.7        9.0 
 14       7.8        6.8        6.7        8.5        7.8        7.7        5.7 
 15       4.3        3.8        3.8        2.7        2.6        3.8        3.8 
 16       4.8        7.5        7.9        7.7        9.4        7.4        7.7 
 17       2.1        2.6        2.8        4.8        2.7        2.0        2.7 
 18       9.1       10.8        8.8        8.0        6.8        5.9        5.1 
 19       6.6        6.5        6.2        7.8        7.4        9.7        6.3 
 20       6.0        5.9        5.1        4.1        4.7        6.1        6.1 
 21       2.5        3.7        4.7        2.6        1.8        1.8        3.2 
 22       8.3        9.0       10.2       12.8       10.2        8.9        7.5 
 23       1.8        3.8        2.5        2.2        0.0        1.4        3.5 
 24       5.5        5.9        6.1       13.0        9.7        8.2        5.6 
 25       7.9        8.2        8.8        7.9        7.7        8.5        8.5 
 26       3.4        3.6        4.3        4.1        4.4        4.5        4.1 
 27       6.0        6.7        6.8        6.6        7.5       10.0       11.3 
 28      11.8        9.2       10.2       10.7       10.8       11.0       14.4 
 29       7.7        7.4        6.5        5.7        6.2        6.4        6.2 
 31       7.5        8.5        8.1        7.5        6.9        7.7        8.4 
_______________________
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 723 (1993 Nov 14 - Nov 20)
      93 11 14   93 11 15   93 11 16   93 11 17   93 11 18   93 11 19   93 11 20
Fiducials 8.5        8.5        8.5        8.4        8.0        7.2        7.4
Total    34.9       34.9       36.2       35.9       35.2       32.7       33.1
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 723 (1993 Nov 14 - Nov 20)
      93 11 14   93 11 15   93 11 16   93 11 17   93 11 18   93 11 19   93 11 20
site    % data
ALBH      101        101        103        103        101        100        100
ALGO*     104        106        106        105        105         34         94
BRMU       89         82        102         72         97        103         74
DRAO       99        101        105        105        105        105        102
FAIR*     111        111        110        111        107        110        110
FORT      108        108        105        106         96         99        110
GODE       97         95         97         94         94         94         95
GOLD      100         99        102        101        100        100        102
GRAZ      105        105        106        105         95         22         84
HART*     105        105        105        105         68         57         57
JPLM      104        106        106        106        104        103        105
KIRU       91         91        104        107        104         43         61
KOKB*     110        109        109        109        104        106        108
KOSG      102        104         99        102        104        104        104
KOUR      104         95         92         99        104        106        102
MADR*     104        101        103        103        103        104        104
MASP      105        107        109        109        109        109        109
MDO1       90         89         87         87        100        102        103
METS      103        105        105        100         98        103        102
NLIB       94         95         28         37         91         93         48
NYAL      112        112        112        112        110        110        110
ONSA       96         98        101         92          0         93        105
PAMA      100         90        101        100        101         89         99
PIE1       99         99         91         91         92         90         89
QUIN       97         96         99         97         97         97         95
SANT*     106        108        105        102        107        107        107
STJO      107        107         99        104        106         35         26
TAIW       80         94         98         98        100        101        102
TIDB      108        106        108        106        104        101        106
TROM*     103        102        103        101         97         97         59
USUD       96         95         96         94         92         98        101
VNDP      103        105        105        104        103        104        103
WEST       48         46        104        103        103        104        104
WETT        0          0        102        104        104        106        105
YAR1*     105        106        107        106        105        104        102
YELL      106        109        109        108        106         34         26
_______________________
*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 723 (1993 Nov 14 - Nov 20)
      93 11 14   93 11 15   93 11 16   93 11 17   93 11 18   93 11 19   93 11 20
comp log10(rms/ps)
PRN01     2.1        2.3        2.3        2.2        5.9        6          5.9
PRN02     2.5        2.5        2.8        2.6        5.9        6          5.9
PRN03     2.2        2.5        2.3        2.0        5.9        6          5.9
PRN05     2.4        2.8        2.6        2.4        5.9        6          5.9
PRN07     2.2        2.5        2.5        2.7        5.9        6          5.9
PRN09     2.8        2.9        2.6        2.6        5.9        6          5.9
PRN12     2.8        2.5        2.8        2.9        5.9        6          5.9
PRN13     3          3          3          2          6          6          6  
PRN14     2.2        2.4        2.5        2.4        5.9        6          5.9
PRN15     2.8        2.7        2.8        2.8        5.9        6          5.9
PRN16     2.8        2.8        2.6        2.8        5.9        6          5.9
PRN17     2.4        2.5        2.7        2.9        5.8        6          5.9
PRN18     2.7        2.8        2.8        2.8        5.9        6          5.9
PRN19     2.7        2.9        2.8        2.9        5.9        6          5.9
PRN20     2.4        2.6        2.4        2.2        5.9        6          5.9
PRN21     2.3        2.6        2.4        2.2        5.9        6          5.9
PRN22     2.7        2.8        2.9        2.7        5.9        6          5.9
PRN23     2.7        2.4        2.2        2.5        5.9        6          5.9
PRN24     3.0        3.2        3.1        3.1        5.8        6          5.9
PRN25     2.6        2.3        2.7        2.6        5.9        6          5.9
PRN26     2.6        2.7        2.7        2.6        6          6          5.9
PRN27     2.6        2.5        2.6        2.7        5.9        6          5.9
PRN28     2.8        2.8        2.4        2.7        5.9        6          5.9
PRN29     1.9        2.4        2.3        2.0        5.9        6          5.9
PRN31     2.9        3.0        2.9        2.9        5.9        6          5.9
ALBH      2.4        2.6        2.4        2.4        5.9        6          5.9
BRMU      2.3        2.4        2.4        2.1        5.9        6          5.9
CANB      2.6        2.4        2.6        2.5        5.9        6          5.9
FAIR      2.2        2.2        2.2        2.2        1                     3  
FORT      2.3        2.5        2.4        2.4        5          6          5.9
GODE      2.4        2.4        2.2        2.4        5.9        6          5.9
GOLD      2.2        2.4        2.3        2.2        5.9        6          5.9
GRAZ      2.0        2.4        2.7        2.4        5.9        6          5.9
HART      2.5        2.5        2.5        2.5        5          6          6  
HARV      2.5        2.5        2.5        2.5        5.9        6          5.9
JPLM      2.6        2.7        2.4        2.3        5.9        6          5.9
KIRU      2.1        2.3        2.2        1.6        5.9        6          2  
KOKB      2.4        2.6        2.6        2.6        5.9        6          5.9
KOSG      2.3        2.4        1.7        2.7        5.9        6          5.9
KOUR      2          2.4        2          2.8        5.9        6          5.9
MADR      2.3        2.0        1.8        2.1        5.9        6          5.9
MASP      2.9        2.5        2.5        2.5        5.9        6          5.9
MDO1      2.8        2.8        2.8        2.7        5.9        6          5.9
METS      3.1        3.2        3.0        2.7        5.9        6          5.9
NALL      2.1        2.1        1.9        2.3        5.9        6          5.9
NLIB      2.3        2.5        2          2          5.9        6          6  
ONSA      2.5        2.4        2.0        2                     6          5.9
PAMA      3          2.7        3          2.7        5.9        6          5.9
PENT      1.7        2.3        2.3        2.1        5.9        6          5.9
PIE1      2.4        2.7        2.5        2.4        5.9        6          5.9
QUIN      2.7        2.9        2.8        2.8        5.9        6          5.9
SANT      2.8        2.8        2.6        2.5        5.9        6          5.9
STJO      3.5        3.5        2.9        3.3        5.9        6          6  
TAIS      2.6        2.2        2.6        2.6        5.9        6          5.9
TROM      2.3        1.9        2.5        2.6        5.9        6          6  
USUD      2.3        2.3        2.1        2.6        5.9        6          5.9
VNDP      2.1        2.4        2.2        2.0        5.9        6          5.9
WEST      2          2          2.0        2.3        5.9        6          5.9
WETB                            2          2.5        5.9        6          5.9
YAR1      2.6        2.6        2.6        2.7        5.9        6          5.9
YELL      1.9        1.9        1.8        1.7        5.9        6          6  
_______________________
END CLOCK REPEATABILITY TABLE