Subject: [IGSREPORT-0659] JPL Analysis Report (week 725)
From: David C. Jefferson
Date: Thu, 16 Dec 1993 13:57:43 PST

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IGS Electronic Report    Thu Dec 16 13:57:43 PST 1993      Message Number 0659
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Author: David C. Jefferson
Subject: JPL Analysis Report (week 725)

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JPL ANALYSIS REPORT   GPS-WEEK 0725 (DAYS 332-338, DATES 28-11-93 TO 04-12-93)
******************************************************************************

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
______________________________________________________________________________
jpl07257.sum           This text file.
jpl07257.erp           Earth rotation parameters for GPS week 725.
jpl0725[0-6].sp3       GPS ephemerides for GPS week 725, sp3 format.
______________________________________________________________________________

PRN09/GPS39 was not modeled properly for the analyses of days 335-338 (Dec 1 -
Dec 4). Therefore, we have excluded this satellite from our processing for days
335 and 336, and deweighted data from it for days 337 and 338. Also, due to 
lack of data from PRN25/GPS25, atypically large values of orbit repeatability
were realized for days 335-337. (According to the NANU's posted at
tycho.usno.navy.mil, this satellite was declared unusable from 19:04 on day 335
to 19:41 on day 339.) 

The measurement of LODR for day 333 (Nov 29) appears to be an outlier, although
we are unable to discern exactly why.

WARNING: Data from PRN09/GPS39 have been excluded for days 335 and 336.
WARNING: Data from PRN09/GPS39 have been deweighted for days 337 and 338.

JPL LODR TABLE                               GPS week 725 (1993 Nov 28 - Dec 04)
  MJD       LODR     +/-
          (ms/day)
 49319.5    2.48     0.04
 49320.5    1.15     0.04
 49321.5    2.05     0.04
 49322.5    2.17     0.04
 49323.5    2.27     0.04
 49324.5    1.94     0.04
 49325.5    2.08     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 725 (1993 Nov 28 - Dec 04)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49319.5  -.03826   .45212   .27737  .00012  .00012  .00000  .0  .05  .00  .00  39 25  0
 49320.5  -.03610   .45213   .27496  .00012  .00012  .00000  .0  .05  .00  .00  39 25  0
 49321.5  -.03650   .45302   .27254  .00012  .00013  .00000  .0  .11  .00  .00  37 25  0
 49322.5  -.03511   .45392   .27012  .00013  .00014  .00000  .0  .15  .00  .00  37 24  0
 49323.5  -.03353   .45452   .26769  .00013  .00014  .00000  .0  .15  .00  .00  40 24  0
 49324.5  -.03174   .45529   .26525  .00012  .00012  .00000  .0  .10  .00  .00  40 25  0
 49325.5  -.03030   .45637   .26280  .00012  .00012  .00000  .0  .08  .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 725:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 725 (1993 Nov 28 - Dec 04)
      93 11 28   93 11 29   93 11 30   93 12  1   93 12  2   93 12  3   93 12  4
prn   3d rss (m)
  1       0.49       0.51       0.49       0.35       0.36       0.40       0.33
  2       0.80       0.48       0.85       0.27       0.18       0.33       0.21
  3       1.99       1.71       0.28       0.08       0.17       0.14       0.15
  5       1.31       1.00       0.45       0.48       0.44       0.44       0.52
  7       1.33       1.07       0.66       0.53       0.68       0.38       0.65
  9       4.91       3.43       4.3                                             
 12       2.24       1.15       0.73       0.28       0.37       0.29       0.23
 13       0.69       0.96       1.48       0.61       0.88       0.30       0.35
 14       0.30       0.27       0.45       0.34       0.22       0.29       0.35
 15       0.51       0.32       0.25       0.30       0.29       0.32       0.37
 16       0.62       0.72       0.32       0.27       0.19       0.27       0.50
 17       0.22       0.59       0.47       0.39       0.18       0.42       0.45
 18       0.63       0.38       0.27       0.17       0.11       0.21       0.26
 19       0.57       0.35       0.47       0.18       0.26       0.23       0.23
 20       0.82       0.38       0.38       0.50       0.28       0.32       0.39
 21       0.20       0.40       0.83       0.42       0.27       0.45       0.47
 22       0.33       0.30       0.29       0.24       0.24       0.16       0.19
 23       0.34       0.37       0.45       0.52       0.46       0.65       0.47
 24       0.78       0.63       0.30       0.27       0.23       0.34       0.27
 25       0.36       0.13       0.23       3.58       7.03      10.18       0.26
 26       0.63       0.61       0.78       0.35       0.34       0.35       0.32
 27       0.48       0.30       0.56       0.32       0.29       0.19       0.16
 28       0.65       0.70       0.35       0.22       0.24       0.23       0.22
 29       0.40       0.28       0.30       0.10       0.17       0.14       0.12
 31       0.60       0.61       0.59       0.55       0.27       0.27       0.19
_______________________
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 28   93 11 29   93 11 30   93 12  1   93 12  2   93 12  3   93 12  4
prn   3d rss (m)
  1       4.3        5.7        6.1        5.7        6.4        5.0        4.4 
  2       5.7        8.5        9.4        4.1        6.2        0.0        4.3 
  3      14.8       15.3       17.4       14.8       16.0       15.2       16.0 
  5       9.6       11.0       11.1       14.9       13.4        9.1       13.2 
  7       7.0        5.7        5.8        6.2        5.1        4.3        4.4 
  9     125.1      133.1      137.0                                             
 12       3.2        3.8        3.5        3.8        4.5        3.4        4.2 
 13      13.1       14.0       10.6       14.1       16.1       15.8       16.3 
 14       6.8        4.5        6.1        8.6        8.8        8.4        5.4 
 15       2.6        3.1        3.6        4.7        3.0        3.1        2.6 
 16       5.4        9.5       10.5       10.9        8.7        8.1       12.8 
 17       3.7        3.1        3.0        5.2        3.3        4.3        4.6 
 18      10.5        8.3       11.7       10.2        6.8        7.6        7.2 
 19       7.3        7.5        9.1        7.8        9.0        7.1        8.1 
 20       4.8        3.6        5.1        7.4        4.4        4.6        5.5 
 21       5.9        2.0        4.9        2.8        4.6        2.9        6.5 
 22       9.9        8.5        9.4        9.5        7.3        5.1        7.5 
 23       2.6        3.3        2.8        3.0        4.4        3.7        3.1 
 24       6.9        7.6        8.6       11.2       10.4        7.8        8.5 
 25      10.2       10.1       11.3       10.5        9.3       47.7       20.2 
 26       3.9        4.4        3.4        4.0        3.7        3.8        3.6 
 27      10.3        9.6        9.6       11.2       10.2        9.7       10.3 
 28       6.6        6.9        8.7        6.3        4.3        5.3        5.5 
 29       5.2        5.7        5.7        5.3        5.0        3.8        4.4 
 31       9.5        8.9        9.1        8.4        8.6        9.4        9.6 
_______________________
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 725 (1993 Nov 28 - Dec 04)
      93 11 28   93 11 29   93 11 30   93 12  1   93 12  2   93 12  3   93 12  4
Fiducials 8.3        8.3        8.3        7.5        7.5        7.8        8.0
Total    35.8       35.1       35.2       32.8       34.8       36.5       37.0
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 725 (1993 Nov 28 - Dec 04)
      93 11 28   93 11 29   93 11 30   93 12  1   93 12  2   93 12  3   93 12  4
site    % data
ALBH      101        101        102         96         93         95         97
ALGO*      98        103        104         99         96         97         99
BRMU       81         78        101         76         78         95         76
DRAO      104        104        105         98         95         98         97
FAIR*     108        108        108        105        102        104        106
FORT      110        108        107        105        105        107        108
GODE       92         92         97         94         95         92         97
GOLD      101        100        100         97         91         94         95
GRAZ       93         55        101         97         94         95        100
HART*     104        102        105         99         95         96         97
HERS       81          0          0          0         84         92         93
HOBA      104         64         81         90         89         95         99
JPLM      105        106        106        101         99        100        100
KIRU       87         60         93         94         89         94         99
KOKB*     108        108        108        103        102        102        102
KOSG        0         86         99         93         91         96         95
KOUR       84         97        103         98         96         97        101
MADR*      96         97        102         94         70         88         98
MASP      105        101        104         99         97         99        100
MATE      104         94         85         91         81         93         98
MCMU        0          0          0          0         57        106        104
MDO1       99        102        103         96         93         93         96
METS      100        101        102         97         94         87         82
NLIB       75         71          0         28         85         87         93
ONSA       95         96         88          0         81         97         98
PAMA       97         89          0          0          0          0          0
PIE1       75         84        100         96         93         94         96
QUIN       97         99        100         92         89         88         93
SANT*     104        106        106        101         99        103        103
STJO      104        102        104         99         96         98        102
TAIW       91         98         88         96         93         98         99
TIDB       80        103        107        105        100         99         90
TROM*     105        104         93         53         96         99         99
USUD       90         92         97         94         90         93         94
VNDP      104        104        104         99         97         99         99
WEST       86         90        100         96         94         95         97
WETT      101         99        103         98         92         94         99
YAR1*     104        102        106        100         94         96         97
YELL      105        107        107        102         98         98        104
_______________________
*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 725 (1993 Nov 28 - Dec 04)
      93 11 28   93 11 29   93 11 30   93 12  1   93 12  2   93 12  3   93 12  4
comp log10(rms/ps)
PRN01     2.5        2.5        2.9        2.9        2.9        2.8        2.9
PRN02     3.0        3.0        2.6        2.6        2.6        2.6        3.0
PRN03     2          2          2.0        2.4        2.4        2.3        2.8
PRN05     3.2        2.7        2.8        2.6        2.5        2.8        3.7
PRN07     2.7        3.0        3.3        2.6        3.1        2.5        2.9
PRN09     3.6        3.4        4                                              
PRN12     3.4        2.8        3.3        2.9        2.8        2.6        3.8
PRN13     3          3          3          3          3          3          3  
PRN14     2.8        2.6        2.3        2.7        2.6        2.5        2.9
PRN15     2.8        2.9        2.7        2.9        2.6        2.9        3.1
PRN16     2.8        2.6        2.4        2.3        2.5        2.3        3.2
PRN17     2.6        2.8        2.8        2.8        2.8        2.7        3.1
PRN18     2.7        2.7        2.6        2.7        2.1        2.4        3.0
PRN19     3.0        2.9        2.9        3.0        2.7        2.8        2.9
PRN20     3.2        2.8        2.5        2.7        2.7        2.8        3.5
PRN21     1.9        2.4        2.9        2.6        2.6        2.5        3.0
PRN22     2.5        2.9        2.9        2.9        2.5        2.7        3.0
PRN23     2.8        2.6        2.8        2.2        2.7        3.0        3.0
PRN24     3.3        2.6        2.9        2.7        2.8        2.9        3.4
PRN25     2.4        2.4        2.7        3          3          3.4        2.9
PRN26     2.7        2.6        3.0        2.7        2.5        2.6        3.5
PRN27     2.7        2.9        3.0        2.9        2.5        2.9        2.9
PRN28     2.6        3.2        3.0        2.9        2.6        2.9        2.9
PRN29     2.4        2.3        2.5        2.7        2.3        2.5        3.1
PRN31     2.9        3.0        2.8        3.0        2.7        2.7        3.3
ALBH      2.1        2.2        1.9        2.4        2.1        2.3        2.0
BRMU      2.3        2.6        2.4        2.4        2.2        2.7        2.6
CANB      2          2.6        2.4        2.6        2.6        2.6        2.7
FAIR      2.4        2.3        2.4        2.4        2.0        1.8        2.4
FORT      2.1        2.7        2.2        2.3        2.4        2.6        2.4
GODE      2.4        2.6        2.6        2.3        2.4        2.4        2.6
GOLD      2.4        2.3        2.5        2.5        2.3        2.2        2.1
GRAZ      2.5        3          2.8        2.2        2.7        2.8        2.6
HART      2.3        2.8        2.5        2.8        2.5        2.7        3.2
HARV      2.7        2.5        2.5        2.6        2.5        2.5        2.5
HERS                                                  2          2.7        2.8
HOBA      2          2.8        2.5        2.5        2.7        2.5        2.6
JPLM      2.4        2.3        2.5        2.7        2.4        2.5        2.3
KIRU      3          2.2        2.2        2.3        2.3        2.6        2.6
KOKB      2.4        2.5        2.5        2.6        2.5        2.4        2.8
KOSG                 2          1.9        2.2        2.5        2.7        2.1
KOUR      3          3.0        2.8        3.0        2.8        2.6        3.1
MADR      2.5        2.5        2.2        2.4        2          2.8        2.9
MASP      2.7        2.6        2.6        2.8        2.9        2.9        3.1
MATE      2.3        2.5        2.1        2.5        2.5        2.9        2.6
MCMU                                                  2          2.7        2.3
MDO1      2.7        3.0        3.0        2.8        2.6        2.7        2.8
METS      2.9        2.5        2.3        2.1        2.7        2.9        3.5
NLIB      3.2        3                     3          3.3        3.1        2.8
ONSA      2.3        2.3        2                     2          2.8        2.7
PAMA      2.8        2                                                         
PENT      2.1        2.2        2.2        2.6        2.0        2.2        1.7
PIE1      2.6        2.6        2.6        2.6        2.6        2.5        2.5
QUIN      2.7        2.6        2.7        2.8        2.7        2.6        2.7
SANT      2.9        2.7        3.0        2.9        3.0        2.9        2.9
STJO      3.1        3.1        3.3        3.1        3.4        3.1        2.7
TAIS      3          2.7        2.5        2.4        2.3        2.1        3.1
TROM      2.7        2.3        2.0        2          3.0        2.3        3.0
USUD      2.8        2.7        2.6        2.1        2.1        2.3        2.9
VNDP      2.4        2.3        2.7        2.5        2.4        2.2        2.3
WEST      2.6        2.7        2.6        2.7        2.7        2.7        2.6
WETB      2.3        2.3        1.7        2.4        2.3        2.7        2.5
YAR1      2.6        2.3        2.5        2.5        2.5        2.7        2.4
YELL      2.1        1.9        2.2        2.5        1.6        2.3        2.5
_______________________
END CLOCK REPEATABILITY TABLE