Subject: [IGSREPORT-0877] JPL Analysis Report (week 741)
From: David C. Jefferson
Date: Thu, 31 Mar 1994 16:21:42 PST

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IGS Electronic Report    Thu Mar 31 16:21:42 PST 1994      Message Number 0877
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Author: David C. Jefferson
Subject: JPL Analysis Report (week 741)

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JPL ANALYSIS REPORT   GPS-WEEK 0741 (DAYS 79-85, DATES 1994 Mar 20 - Mar 26)
******************************************************************************

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/0741.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07417.sum           This text file.
jpl07417.erp           Earth rotation parameters for GPS week 741.
jpl0741[0-6].sp3       GPS ephemerides for GPS week 741, sp3 format.
______________________________________________________________________________

According to the file constell.gps obtained from the IGS CBIS, PRN06/GPS36
was launched on day 069 (Mar 10).  Tracking data for this new satellite have
appeared at some sites as early as day 079.  However, no ephemeris data are 
presently available; the aforementioned file indicates usability as of day 087
(Mar 28).  All tracking data for this satellite have been removed from our
analyses for the entire week.

A few sites in particular caused excessive numbers of outliers in our analyses
this week.  These are NLIB, HARV, and ONSA on days 079, 080, and 083 (Mar 20,
21, 24) respectively.  Data from these sites have been deleted from our
processing on the appropriate days.

In our last report (jpl07407.sum), we mentioned that PRN03 was no longer
available.  In retrospect, we find that this was a temporary condition; orbit
solutions for this satellite have been included again beginning with day 082,
(Mar 23) in the jpl07413.sp3 file.

WARNING: PRN06 launched day 069 (Mar 10); no data included for GPS week 741.
WARNING: Data from NLIB have been excluded for day 079 (Mar 20).
WARNING: Data from HARV have been excluded for day 080 (Mar 21).
WARNING: Data from ONSA have been excluded for day 083 (Mar 24).

JPL LODR TABLE                               GPS week 741 (1994 Mar 20 - Mar 26)
  MJD       LODR     +/-
          (ms/day)
 49431.5    2.44     0.01
 49432.5    2.38     0.01
 49433.5    2.47     0.01
 49434.5    2.46     0.02
 49435.5    2.44     0.01
 49436.5    2.60     0.02
 49437.5    2.60     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 741 (1994 Mar 20 - Mar 26)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS    
           ''        ''        sec     ''     ''      sec
 49431.5   .16433   .41391   .01026  .00011  .00013  .00000  .0 -.04  .00  .00  37 25  0
 49432.5   .16505   .41171   .00744  .00011  .00012  .00000  .0 -.02  .00  .00  42 25  0
 49433.5   .16468   .40945   .00461  .00010  .00012  .00000  .0 -.01  .00  .00  42 26  0
 49434.5   .16489   .40782   .00177  .00011  .00013  .00000  .0 -.01  .00  .00  41 26  0
 49435.5   .16605   .40620  -.00107  .00010  .00012  .00000  .0  .05  .00  .00  43 26  0
 49436.5   .16725   .40481  -.00393  .00012  .00015  .00000  .0  .05  .00  .00  41 26  0
 49437.5   .16841   .40224  -.00678  .00011  .00012  .00000  .0  .03  .00  .00  41 26  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 741:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 741 (1994 Mar 20 - Mar 26)
      94  3 20   94  3 21   94  3 22   94  3 23   94  3 24   94  3 25   94  3 26
prn   3d rss (m)
  1       0.60       0.87       0.70       0.56       0.93       1.14       1.00
  2       0.54       0.42       0.40       0.60       0.70       0.37       0.56
  3                                        0.8        0.67       0.46       0.63
  4       0.34       0.33       0.48       0.58       0.75       0.51       0.45
  5       0.98       0.86       0.60       0.64       0.63       0.75       0.73
  7       0.58       0.60       0.71       0.58       1.00       0.82       0.75
  9       0.30       0.40       0.34       0.51       0.36       0.46       0.46
 12       0.21       0.30       0.17       0.41       0.36       0.32       0.30
 13       0.53       0.42       1.39       0.95       0.7                   1.8 
 14       0.44       0.26       0.43       0.46       0.41       0.42       0.49
 15       0.41       0.60       0.53       0.41       0.65       0.69       0.58
 16       0.92       1.72       1.04       1.45       0.94       0.57       1.25
 17       1.00       0.80       0.68       0.53       0.75       0.41       0.77
 18       0.66       0.65       0.52       0.58       0.66       0.68       0.54
 19       0.42       0.33       0.29       0.23       0.24       0.36       0.34
 20       0.62       0.46       0.40       0.40       0.53       0.57       0.73
 21       0.53       0.60       0.40       0.59       0.51       0.57       0.47
 22       1.70       1.98       1.46       0.69       0.85       0.94       0.81
 23       1.65       1.32       2.77       0.59       0.59       0.78       1.00
 24       0.45       0.52       0.53       0.98       0.70       0.49       0.57
 25       1.26       0.78       0.45       0.28       0.44       0.55       0.14
 26       0.79       0.93       0.45       0.82       0.64       0.34       0.86
 27       0.42       0.35       0.26       0.19       0.32       0.33       0.28
 28       0.69       0.86       1.25       1.23       0.65       1.17       1.22
 29       1.19       0.94       0.64       0.57       0.63       0.43       0.71
 31       0.94       0.6                   0.3        0.92       1.08       0.71
_______________________
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  3 20   94  3 21   94  3 22   94  3 23   94  3 24   94  3 25   94  3 26
prn   3d rss (m)
  1       6.7        6.6        6.5        6.8        7.2        8.1        8.6 
  2       8.4        7.2        5.1        7.7       10.9        4.3        4.6 
  3                                       11.4       16.9       20.7       10.7 
  4      14.9       12.4        9.8        9.9        9.7       11.6       11.3 
  5       6.5        6.4        7.3        7.9        6.3        4.9        3.8 
  7       7.6        6.9        6.9        6.8        7.6        7.6        8.3 
  9       5.0        4.8        5.0        3.6        2.8        2.5        3.2 
 12       4.4        4.6        3.9        3.6        4.1        4.3        3.3 
 13       5.8        3.8        3.7        3.2        4.2                   3.9 
 14       8.6       11.4        9.4        6.8        7.0        8.9       10.8 
 15       2.7        2.7        3.0        3.1        3.7        3.2        2.9 
 16       7.5        8.5        6.8        8.7        9.7        9.3        9.8 
 17       7.1        8.1        8.8        7.8        7.3        5.4        5.6 
 18       6.7        6.4       11.6        7.4        8.5       10.8       12.8 
 19       5.1        4.0        3.7        3.8        3.7        3.8        3.1 
 20       5.3        5.5        4.5        4.2        4.7        4.7        4.2 
 21       3.4        2.5        4.5        3.9        4.0        3.6        4.8 
 22       7.1        5.8        6.3        5.8        5.9        7.2        4.9 
 23       5.8       14.5       24.9       17.9       12.1       10.3        7.2 
 24       6.9        6.2        5.6        5.2        4.3        4.7        6.5 
 25      10.8        6.4        6.3        5.0        4.4        4.9        4.5 
 26       4.5        3.5        4.3        3.7        4.6        4.1        3.6 
 27       5.2        5.2        5.9        4.2        3.2        4.5        7.4 
 28       4.5        4.4        4.8        4.3        3.9        4.2        4.6 
 29       7.7        6.4        5.8        4.7        6.5        5.4        4.0 
 31       5.2        5.1                   4.4        4.8        5.9        5.5 
_______________________
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 741 (1994 Mar 20 - Mar 26)
      94  3 20   94  3 21   94  3 22   94  3 23   94  3 24   94  3 25   94  3 26
Fiducial  7.6        8.7        8.0        8.4        9.4        9.1        9.8
Total    31.4       34.9       31.5       33.0       33.4       29.9       31.8
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 741 (1994 Mar 20 - Mar 26)
      94  3 20   94  3 21   94  3 22   94  3 23   94  3 24   94  3 25   94  3 26
site    % data
ALBH       95        108         67        104        104        100         96
ALGO*     106        107         97        100         99         98         97
AREQ      106        106        101        101        102        100         98
BRMU       91         88         83         89         89         81         87
DRAO      109         75         67        100        103          0          0
FAIR*       0         33         63         73         75         72         80
FORT      105        104         99         99         98        101         96
GODE       93         95         91         94        100         97         95
GOLD*      86         83         67         52         64         83         80
GRAZ       79         88         82         43         60         22          0
HART*      87         81         77         85         85         87         86
HARV      101          0         92         99         97         94         92
HERS       91         81         73         77         76         74         75
HOBA       97        100         90         90         91         96         92
JPLM       94         92         77         67         58         58         54
KIRU      105        103         96         96         89          0          0
KOKB*      81         95         90         76         84         88         85
KOSG*       0         60          0          0          0         42         98
KOUR       96         98         91         94         91         91         90
MADR*      79         71         66         84         65         62         68
MASP       99         99         91         96         89          0         88
MATE        0         55         57         75         60         63         63
MCMU        0          0          0          0          5         13          0
MDO1      106        106        100        100        101         98         96
METS       84         77         58         74         75         70         72
NLIB        0         31         36         75         51         68         70
NYAL       92        100         73        103        105        106        101
ONSA        0         87         92         96          0         75         84
PAMA       69         74         59         61         67         57         63
PIE1      102        103         94         95         97         94         96
PINY        0         58         40          0         64          0         75
QUIN      104        101         86         86         86         86         92
RCM5      100        105         97         96         99         97         92
SANT*      77         59         49         60         52         55         41
STJO        0          0          0          0          0         58         70
TAIW       85         94         88         80         77         77         88
TIDB*      75         69         64         69         86         69         63
TROM*       0         64         99         98        103         99         99
TSKB      108        109        100        103        102        105          0
USUD      108        107         98         88         87         95         84
VNDP       64         74         74         87         78          0         86
WEST      103        104         96         98        101         96         94
WETT*      78         80         70         72         69         12         24
YAR1*      88         71         57         67         62         50         69
YELL*       0          0          0          0         94         93         92
_______________________
*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 741 (1994 Mar 20 - Mar 26)
      94  3 20   94  3 21   94  3 22   94  3 23   94  3 24   94  3 25   94  3 26
comp log10(rms/ps)
PRN01     6.2        4.2        4.0        3.7        3.8        4.0        4.1
PRN02     6.8        3.4        3.8        3.9        4.1        4.5        5.2
PRN03                                      4          4.4        4.3        5.6
PRN04     6.5        4.0        4.3        4.0        4.0        4.4        5.0
PRN05     6.6        3.9        3.6        4.0        4.3        5.4        6.2
PRN07     6.7        3.7        3.4        4.3        3.8        4.4        5.0
PRN09     6.7        3.7        3.5        4.1        3.5        4.6        5.3
PRN12     6.6        4.1        3.8        3.9        4.1        4.7        5.5
PRN13     6.7        4.2        4          4          4.0        6          6  
PRN14     6.4        4.0        3.9        3.7        3.9        3.9        4.5
PRN15     6.7        3.4        3.7        4.1        3.7        3.9        4.5
PRN16     6.9        4.0        4.3        4.0        4.2        4.6        5.6
PRN17     6.5        4.2        4.3        4.2        4.2        4.6        5.3
PRN18     6.6        4.1        4.1        4.3        4.2        4.4        4.7
PRN19     6.3        3.7        4.0        4.3        3.9        4.4        4.2
PRN20     6.8        3.6        3.7        3.7        3.8        4.3        5.4
PRN21     6.4        4.1        3.9        4.3        4.0        4.3        4.4
PRN22     6.1        3.8        3.9        4.1        4.1        4.4        4.5
PRN23     6.2        4.0        3.9        3.6        4.0        4.3        5.0
PRN24     6.6        4.2        4.3        4.1        4.3        4.5        5.5
PRN25     6.6        4          4.2        3.9        4.0        3.9        4.4
PRN26     7.1        3.7        3.7        4.1        4.2        3.8        4.7
PRN27     6.3        3.4        3.9        4.1        3.0        3.5        4.4
PRN28     7.5        3.1        4          3.9        4.1        4.5        5.1
PRN29     6.7        4.1        4.1        4.2        4.2        4.1        4.9
PRN31     6.4        4                     4          3.7        3.9        4.5
ALBH      8.2        3.6        3.9        4.1        3.6        4.0        4.7
AREQ      5.8        4.1        4.1        3.5        4.1        3.9        4.2
BRMU      4.8        3.7        3.8        3.8        3.7        3.9        4.4
CANB      6.4        4.0        4          4.0        4.0        4.1        5.6
FAIR                 4          4.2        3.8        3.1        3.5        3.6
FORT      6.6        4.3        4.3        3.8        4.2        4.0        4.5
GODE      5.4        3.2        3.6        3.7        3.3        3.3        3.6
GOLD      5.7        3.8        4          4          3          3.4        4.1
GRAZ      6.4        4.2        4.4        4          3.7        4             
HART      7.4        3.9        3.8        3.8        3.8        4.2        5.2
HARV      6                     4          4.0        3.7        3.9        4.7
HERS      6.7        4.0        4.0        4.0        3.7        4.0        4.7
HOBA      6.6        3.9        4.0        4.2        3.8        3.3        5.6
JPLM      6.4        3.5        4.0        4.0        3.7        3.7        3.5
KIRU      6.8        3.7        3.8        3.9        4                        
KOKB      6.3        4.0        4.2        4.5        4.6        4.1        4.6
KOSG                                                             4          4.4
KOUR      5.7        4.1        4.4        3.5        4.2        4.2        4.4
MADR      6.0        3.7        4          4.0        3.5        4          4.9
MASP      6.7        4.1        4.2        4.0        4                     5  
MATE                 3          3.5        4.0        3.7        4.0        4.7
MCMU                                                  4          4             
MDO1      6.4        3.5        3.6        4.0        3.5        3.9        4.7
METS      6.2        4.2        4.0        3.8        3.9        4.2        4.8
NALL      6.3        4.4        4.1        3.6        4.2        4.3        4.1
NLIB                 4          4          4.2        3.8        6.0        6.7
ONSA                 4          4.0        4                     4          4.3
PAMA      6.7        3.8        4.4        4.2        4.3        4          5.1
PENT      6.2        3.6        3.9        4.1        4                        
PIE1      5.2        3.6        3.3        4.0        3.7        4.0        4.6
PINY                            3                                              
QUIN      6.3        3.7        3.7        4.2        3.8        4.1        4.9
RCM5      6.2        3.6        3.7        3.9        3.0        4.2        4.9
SANT      6.6        4.0        4.3        4.5        4.2        4.5        5.4
STJO                                                             4          5.1
TAIS      6.4        3.3        4.1        4.2        3.8        3.8        4.6
TROM                 4          4.2        4.0        4.3        4.2        4.8
TSKB      6.0        3.6        3.7        4.1        3.8        4             
USUD      5.9        4.0        3.6        4.1        3.6        3.7        4  
VNDP      7          3.8        4.0        3.7        4                     5  
WEST      5.3        3.7        3.5        3.7        3.4        3.5        3.6
WETB      6          3.8        3.7        3.7        3.7        4          4  
YAR1      6.7        4.3        4.0        4.0        3.7        4.1        5.5
YELL                                                  4          4.2        5.0
_______________________
END CLOCK REPEATABILITY TABLE