Subject: [IGSREPORT-1063] Wk 0753 JPL Analysis Report
From: D.C. Jefferson
Date: Thu, 30 Jun 1994 17:59:16 PDT

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IGS Electronic Report    Thu Jun 30 17:59:16 PDT 1994      Message Number 1063
******************************************************************************

Author: D.C. Jefferson
Subject: Wk 0753 JPL Analysis Report

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JPL ANALYSIS REPORT   GPS-WEEK 0753 (DAYS 163-169, DATES 1994 Jun 12 - Jun 18)
******************************************************************************

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/0753.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07537.sum           This text file.
jpl07537.erp           Earth rotation parameters for GPS week 753.
jpl0753[0-6].sp3       GPS ephemerides for GPS week 753, sp3 format.
______________________________________________________________________________

In jpl07507.sum, we outlined our new strategy of including pseudorange data
from a chosen set of TurboRogue ground stations.  This week, beginning with
day 167 (Jun 16), we incorporate psuedorange measurements from ALL TurboRogue
sites used.  These are marked with a '#' in the ground station table.

According to the file nanu1994.mes obtained from the IGS CBIS, PRN12 is
unusable beginning day 168 for an indefinite period.  We have deleted this
satellite from our processing on this day and the following day as well.
PRN09 was not well-modeled for the latter days of the week; we have therefore
excluded data from this satellite on these two days also.  Furthermore,
we chose to exclude data from GPS15 on day 169 as atypically large post-fit
residuals were realized for this satellite on this day.

Additionally, because of interactions with recent changes in software
associated with the new GPS attitude model, we have excluded results for
prn's 9 and 12 from several sp3 files as follows:

      PRN09: removed from jpl07532.sp3, jpl07533.sp3, jpl07534.sp3
             (days 165-167)
      PRN12: removed from jpl07531.sp3, jpl07533.sp3, jpl07534.sp3
             (days 164,166,167)

According to IGS Mail Message 651, there was a significant gap in the data
from ALGO on day 169.  We have changed our reference clock to FAIR on this
day only. 

Beginning with day 168, we include data from a new station, MAS1.  This site
will be replacing MASP; see IGS Mail Message 625 for details.  The following
nominal coordinates were assumed, and the station locations were estimated
(unconstrained) each day:

    X =  5439198.6444 m,   Y = -1522053.5282 m,    Z =  2953456.0952 m

We have discovered that although our analysis reports for weeks 729-752 
indicate that TIDB was used as a fiducial (constrained) site, this is not
actually the case, due to a bug in one of our scripts.  We have corrected the
problem, and beginning with this week's report, this site appears correctly
in our ground station table (it was NOT constrained).  We apologize for the
misinformation.

Lastly, various sites caused excessive outliers in our solutions on several
days.  These are noted in the warnings below.

WARNING: Data from PRN09 and PRN12 excluded days 168 and 169 (Jun 17,18).
WARNING: Data from PRN15 excluded day 169.
WARNING: Data from MATE excluded days 163, 165, and 166 (Jun 12, 14, 15).
WARNING: Data from QUIN and STJO exclcuded day 163.
WARNING: Data from ONSA excluded days 168 and 169.
WARNING: Data from HOBA excluded day 169.
WARNING: FAIR (not ALGO) used as reference clock for day 169.

In the following table, UT1R-UTC are the assumed nominal values from IERS
Bulletin-B predicts; estimated LODR values are also included.  See IGS Mail
Message 97 for details.

JPL ERP TABLE                                GPS week 753 (1994 Jun 12 - Jun 18)
     MJD  XPole  Ypole UT1R-UTC  LODR Xsig Ysig UTsig LODsig Nr Nf Nt  Xrt  Yrt 
            10**-5"      usec    us/d  10**-5"    us   us/d            10**-5"/d
49515.50  16209  24776  -195055  1738    8    8     0     11 37 12 25 -150 -289 
49516.50  16106  24572  -197073  1786    8    9     0     10 43 12 25 -123 -240 
49517.50  16069  24365  -199077  1726    8    8     0     10 40 12 25 -106 -292 
49518.50  16026  24136  -201069  1682    8    8     0     10 41 12 25 -184 -233 
49519.50  15933  23950  -203050  1643    8    8     0     10 43 12 25 -187 -200 
49520.50  15838  23823  -205019  1672    8    8     0      9 43 12 23  -80 -200 
49521.50  15772  23661  -206976  1661   10   11     0     12 38 11 22  -97 -207 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 753:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 753 (1994 Jun 12 - Jun 18)
      94  6 12   94  6 13   94  6 14   94  6 15   94  6 16   94  6 17   94  6 18
prn   3d rss (m)
  1       0.76       0.39       0.61       0.73       0.43       1.11       0.5 
  2       0.52       0.58       0.69       0.85       0.56       0.56       0.6 
  4       0.85       0.62       0.80       0.87       0.91       0.72       0.7 
  5       0.58       0.49       0.48       0.49       0.89       0.61       0.6 
  6       0.39       0.49       0.45       0.45       0.41       0.46       0.4 
  7       0.95       0.63       0.61       0.62       0.73       0.73       1.5 
  9       1.04       1.25       2.20       4.87       2.8                       
 12       0.49       3.42       1.79       4.03       8.7                       
 14       0.39       0.52       0.42       0.61       0.47       0.49       0.6 
 15       1.30       1.27       0.90       0.94       1.38       1.4            
 16       0.36       0.25       0.50       0.71       0.83       0.45       0.3 
 17       0.64       0.57       1.07       1.22       0.67       1.07       0.3 
 18       0.29       0.36       0.50       0.65       0.42       0.39       0.3 
 19       0.46       0.67       0.61       0.82       0.50       0.53       0.6 
 20       0.66       0.49       0.40       0.35       0.52       0.42       0.6 
 21       0.84       0.53       0.71       0.69       0.61       0.99       0.9 
 22       0.90       0.90       0.95       0.97       0.98       0.86       0.5 
 23       0.38       0.38       0.34       0.34       0.35       0.33       0.4 
 24       0.86       0.80       0.95       0.87       0.69       0.64       0.6 
 25       0.53       0.91       0.57       1.62       1.44       0.48       0.7 
 26       0.52       0.48       0.43       0.39       0.60       0.35       0.3 
 27       0.53       0.61       0.64       0.83       0.73       0.49       0.6 
 28       0.78       0.79       0.66       0.61       0.56       0.55       0.4 
 29       0.37       0.39       0.49       0.59       0.28       0.34       0.5 
 31       0.67       0.54       0.48       0.53       0.34       0.37       0.5 
_______________________
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  6 12   94  6 13   94  6 14   94  6 15   94  6 16   94  6 17   94  6 18
prn   3d rss (m)
  1       9.4        6.3        8.9        7.4        7.8        6.8        8.5 
  2       4.3        2.9        3.4        6.4        9.0        5.7        2.8 
  4      20.5        7.7        6.1        8.2        9.8        7.2        6.3 
  5       9.2        9.3        9.8        8.7        8.3        8.3        8.8 
  6       6.4        6.5        7.8        8.0        5.2        5.0        5.8 
  7       7.9        8.0        7.5        7.4        8.9        8.0        6.9 
  9       8.7        9.2       10.7        9.7       10.7                       
 12       5.2        4.6       13.5       34.7       55.4                       
 14       4.4        5.5        4.7        4.1        3.9        3.8        3.5 
 15       3.7        6.9        8.0        6.3        9.7        9.0            
 16      12.0        9.6        9.5       11.7        9.9       10.1       12.1 
 17       7.0        6.7        4.9        4.0        4.9        7.1       10.0 
 18       8.3        7.3        7.8        9.6        9.6        7.5        8.2 
 19       7.4        7.6        9.2        8.1       11.2       12.6       10.3 
 20       5.3        3.2        3.3        6.3        3.8        4.1        5.1 
 21       6.4        5.8        7.0        5.0        4.9        5.2        7.4 
 22       4.5        4.0        5.6        4.5        3.7        5.5        4.9 
 23       3.6        2.8        4.7        4.4        3.1        4.2        4.9 
 24       8.3        8.6        7.7        7.7        7.9        7.9        9.9 
 25       8.6        6.2        8.2        7.6        8.1        6.7        7.5 
 26       7.6        5.1        3.7        5.7        6.7        5.6        5.1 
 27       9.5        8.4        9.2       10.2       11.7       14.1       10.1 
 28       7.3        6.6        8.5        4.7        7.0        8.7       10.1 
 29       7.0        6.2        5.7        3.5        4.6        5.3        4.8 
 31       7.4        5.5        6.0        4.9        5.3        6.9        7.6 
_______________________
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 753 (1994 Jun 12 - Jun 18)
      94  6 12   94  6 13   94  6 14   94  6 15   94  6 16   94  6 17   94  6 18
Fiducial 12.1       12.0       12.0       12.4       11.8       12.4       10.8
Total     0.0       36.8       39.8       37.7       41.8       41.8       39.5
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 753 (1994 Jun 12 - Jun 18)
      94  6 12   94  6 13   94  6 14   94  6 15   94  6 16   94  6 17   94  6 18
site    % data
ALBH #    104        106        105        106        106        109        110
ALGO*#    102        103        103        103        104        105         68
AREQ #    107        107        104        107        104        103        103
BRMU #     84         85         90         83         99         89         94
CHTP #      0          0         32         91         96         98         96
DRAO #      0        104        104        104        105        105        109
FAIR*     101         99         99        103        100        108        105
FORT #     90        102         99         85         86        102        104
GODE #    104        105         99         99        101        107        109
GOLD*      80         75         70         76         74         81         82
GRAZ       60        105        106        105        105        106        107
HART*      89         88         82         81         77         86         84
HARV #    107        109        109        106        106          0        113
HERS       85         74         80         91         88         94         95
HOBA #    102        101        102        101        101        103          0
JPLM #    108         87         61        109        109         98        107
KIRU #    103        103        101        103          0        101          0
KOKB*     110        111        111        110        107        110        110
KOSG*      88         86         88        103        104         89        104
KOUR       98         99         99        100         99        104        106
MADR*      82         74         77         72         69         82         76
MAS1 #      0          0          0          0          0        107        104
MASP      105        103        104        104         99        104        101
MATE        0        106          0          0        107        108        108
MCMU #      0        115        116        114        108        110          0
MDO1 #    106        107        107        106        106        109        111
METS      100        102        100          0         99        103        104
NYAL      113        108         95        109        114        118          0
ONSA #     98         84          0         92         94          0          0
PAMA       68         61         73         71         59         43         71
PIE1 #    101        105        105        105        105        105        106
QUIN #      0        100        104        106        106        108        108
RCM5 #    104        105        104        105        106        108        109
SANT*      78         90        109        110         77         86         70
STJO #      0         94          0         95        106         97         96
TAIW      106        105        107        107        106        112        111
TIDB*      86         78         78         85         81         90         82
TROM*      81         83         82         81         81         82         83
TSKB #    103        102        103        102         99        103        106
USUD #    100        102        100         96         96        103        102
WEST #     95         92         97        103        104        106        108
WETT*     103        103         94        105        104        106          0
YAR1*     105        106        107        108        102        109        106
YELL*#    105        107        102        104        104        107        108
_______________________
*Indicates fiducial site; #indicates TurboRogue psuedo-range used
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 753 (1994 Jun 12 - Jun 18)
      94  6 12   94  6 13   94  6 14   94  6 15   94  6 16   94  6 17   94  6 18
comp log10(rms/ps)
PRN01     3.3        3.2        3.1        3.2        2.8        5.5        6  
PRN02     3.2        3.6        4.2        4.3        3.9        5.5        6  
PRN04     2.9        2.9        2.8        3.1        3.1        5.5        6  
PRN05     2.9        3.0        2.6        2.9        3.5        5.5        6  
PRN06     3.1        2.9        2.9        3.2        3.1        5.5        6  
PRN07     2.9        3.7        3.1        3          4.0        5.5        6  
PRN09     3.4        3.0        3.0        3.7        4                        
PRN12     3.2        3.9        3.5        4.1        4                        
PRN14     3.1        4.1        4.0        3.3        3.7        5.5        6  
PRN15     3.1        4.1        3.9        3.2        3.1        3             
PRN16     2.9        2.7        3.1        3.2        2.9        5.5        6  
PRN17     3.3        3.0        3.4        3.4        3.4        5.5        6  
PRN18     3.5        3.6        4.1        4.1        3.2        5.5        6  
PRN19     3.4        3.5        3.4        3.3        3.3        5.5        6  
PRN20     3.2        2.8        3.2        3.2        3.2        5.5        6  
PRN21     3.2        3.1        3.2        3.1        2.7        5.5        6  
PRN22     3.3        3.2        3.2        3.2        3.0        5.5        6  
PRN23     3.0        3.3        2.9        2.9        3.0        5.5        6  
PRN24     4.2        2.8        2.9        4.3        3.0        5.5        6  
PRN25     3.1        3.3        3.1        3.2        3.0        5.5        6  
PRN26     2.8        3.1        2.6        3.1        2.6        5.5        6  
PRN27     3.1        3.2        2.9        3.1        3.6        5.5        6  
PRN28     3.3        3.2        3.2        3.3        3.1        5.5        6  
PRN29     3.2        3.3        3.3        3.3        2.8        5.5        6  
PRN31     3.3        3.3        3.3        3.3        2.9        5.5        6  
ALBH      3          3.2        3.4        2.9        2.9        5.5        6  
AREQ      3.0        3.0        3.1        3.1        3.1        5.5        6  
BRMU      4          3.1        3.3        3.7        3.3        5.5        6  
CHTP                            3          3.1        3.2        5.5        6  
DRAO                 3          3.5        3.0        2.7        5.5        6  
FAIR      3.4        3.7        3.5        3.6        3.8        3             
FORT      3          2.8        3.0        3          3.4        5.5        6  
GODE      4          3.5        3.5        3.7        3.3        5.5        6  
GOLD      3.6        3.7        4          3.3        3.7        5.5        6  
GRAZ      4          3.9        4.2        3.7        3.5        5.5        6  
HART      3.6        3.8        4.1        3.8        3.8        5.5        6  
HARV      3          3.5        3.5        3.5        3                        
HERS      3          3.7        4.0        4.0        3.6        5.5        6  
HOBA      3.3        3.3        3.1        3.2        2.7        3             
JPLM      3.5        4          3          3.1        2.9        5          6  
KIRU      4          3.3        3.6        4                                   
KOKB      3.7        3.8        3.6        3.4        3.6        5.5        6  
KOSG      3.5        3.4        3.8        3.6        3.4        5.5        6  
KOUR      4.1        4.5        4.4        4.4        4.3        5.5        6  
MADR      3.7        3.8        4          3.8        3.3        5.5        6  
MAS1                                                             6          6  
MASP      4          4.3        4.3        4.4        4.1        5.5        6  
MATE                                                  4          5.5        6  
MCMU                 3          3.0        3.0        3.1        3             
MDO1      3          3.4        3.4        3.0        2.9        5.5        6  
METS      4          3.8        3                     4          5.5        6  
NYLL      4.4        4.2        4.1        4.3        4.1        4             
ONSA      2.9        3                     3          3                        
PAMA      4.0        3.9        4.5        3.7        4.1        5.5        6  
PIE1      3          3.3        3.8        3.6        2.9        5.5        6  
QUIN                 3          3.2        3.5        3.2        5.5        6  
RCM5      3          3.3        3.6        3.8        3.3        5.5        6  
SANT      4.2        4.1        4.0        3.8        3.8        5.5        6  
STJO                                       3          3.2        5.5           
TAIW      3          4.0        3.9        3.7        3.2        5.5        6  
TIDB      3.6        3.6        3          3.5        3.4        5.5        6  
TROM      4.0        4.2        3.9        4.0        4.2        5.5        6  
TSKB      3.1        2.8        2.9        3.3        2.6        5.5        6  
USUD      3          3.5        3.2        3.6        2.9        5.5        6  
WEST      4          3.4        3.3        3.6        3.4        5.5        6  
WETT      3.0        3.4        3.6        3.4        3.2        3             
YAR1      3.8        3.5        3.7        3.7        3.9        5.5        6  
YELL      3.0        2.9        2.7        3.0        2.7        5.5        6  
_______________________
END CLOCK REPEATABILITY TABLE