Subject: [IGSREPORT-1083] Wk 0755 JPL Analysis Report
From: D.C. Jefferson
Date: Tue, 12 Jul 1994 15:45:42 PDT

******************************************************************************
IGS Electronic Report    Tue Jul 12 15:45:42 PDT 1994      Message Number 1083
******************************************************************************

Author: D.C. Jefferson
Subject: Wk 0755 JPL Analysis Report

******************************************************************************
JPL ANALYSIS REPORT   GPS-WEEK 0755 (DAYS 177-183, DATES 1994 Jun 26 - Jul 02)
******************************************************************************

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/0755.  These files have also been sent to the CDDIS.

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl07557.sum           This text file.
jpl07557.erp           Earth rotation parameters for GPS week 755.
jpl0755[0-6].sp3       GPS ephemerides for GPS week 755, sp3 format.
______________________________________________________________________________

This week, we continue to exclude all data from PRN12 from our processing.
Additionally, because of interactions with recent changes in software
associated with the new GPS attitude model, we have excluded several satellites
from our sp3 files as follows:

              DAY      sp3 FILE       Excluded Satellites
             -----   ------------    ---------------------
              177    jpl07550.sp3     PRN 17
              178    jpl07551.sp3     PRN's 15,17,31
              179    jpl07552.sp3     PRN's 15,22
              180    jpl07553.sp3     PRN 15
              181    jpl07554.sp3     PRN's 15,17,22,25,31
              182    jpl07555.sp3     PRN's 15,17,22,25,31
              183    jpl07556.sp3     PRN's 15,17,22,31

Day 178 (Jun 27) was processed prior to our updating of IERS Bulletin B nominal
values.  This is manifested in the apparent discontinuity in UT1R-UTC on this
day.

In order to expedite our processing, some days were processed with a well-
distributed subset of the global network consisting of no more than 25 sites.
The exclusion of other sites is not necessarily indicative of problems at
those stations.

WARNING: Data from PRN12 excluded for the entire GPS week 754.

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 755 (1994 Jun 26 - Jul 02)
     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
49529.50  14390  22057  -214028  1144   19   18     0     31 18 12 24 -259 -152 
49530.50  14343  21853  -224115  1095    9    9     0     11 44 13 24 -209 -191 
49531.50  14194  21823  -216192  1501   18   17     0     23 22 12 24 -247 -154 
49532.50  13955  21647  -217160  1528   18   17     0     22 23 12 24 -200 -169 
49533.50  13748  21381  -218251  1244   19   20     0     24 23 12 24 -263 -149 
49534.50  13623  21293   780408   800   13   14     0     21 24 13 24 -201 -151 
49535.50  13451  21311   778882   889   14   15     0     21 23 13 24 -177 -185 
END ERP TABLE

The following table indicates the "3-dimensional orbit repeatability", as 
defined in IGS Mail Message 37, for GPS week 755:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 755 (1994 Jun 26 - Jul 02)
      94  6 26   94  6 27   94  6 28   94  6 29   94  6 30   94  7  1   94  7  2
prn   3d rss (m)
  1       0.84       0.91       0.50       1.47       1.48       1.27       1.54
  2       0.80       0.90       1.73       1.06       0.63       0.74       1.04
  4       0.89       1.66       1.46       1.59       1.57       1.93       1.09
  5       0.71       0.60       0.95       1.12       0.77       1.14       1.04
  6       0.51       0.91       0.90       0.56       0.55       0.60       0.49
  7       0.90       0.94       1.11       1.77       1.32       1.39       1.59
  9       0.60       0.63       0.64       1.03       1.25       0.55       0.58
 14       0.79       1.14       0.86       1.25       1.96       1.47       0.92
 15       1.42       2.57       2.76       3.34       3.56       3.80       2.40
 16       0.41       0.58       0.61       0.53       0.43       0.45       0.79
 17       2.19       3.54       1.96       1.63       3.13       3.41       2.78
 18       0.64       1.02       0.39       0.41       0.74       0.59       0.61
 19       0.70       0.47       0.31       0.58       0.71       0.88       1.04
 20       0.78       1.08       1.37       0.98       0.85       0.69       0.67
 21       0.42       0.98       0.34       1.12       1.21       1.33       1.19
 22       0.36       1.70       2.08       1.76       2.29       2.02       2.70
 23       0.60       0.66       0.65       0.72       0.94       0.98       0.79
 24       0.90       0.84       0.78       0.98       0.96       1.08       0.95
 25       0.98       1.56       0.90       1.50       3.25       2.64       1.36
 26       0.42       0.67       0.51       0.37       0.58       0.70       0.41
 27       0.81       0.86       0.39       0.57       0.68       0.39       0.42
 28       0.80       1.32       0.78       0.59       1.29       1.11       1.19
 29       0.78       1.17       0.76       1.02       0.59       0.48       0.28
 31       1.03       2.18       1.92       1.79       3.26       3.39       2.37
_______________________
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 26   94  6 27   94  6 28   94  6 29   94  6 30   94  7  1   94  7  2
prn   3d rss (m)
  1       5.9        6.0        5.3        5.6        5.9        5.9        4.7 
  2       2.8        3.0        2.9        2.7        2.9        4.3        4.3 
  4       9.0        8.9        9.4       10.1        9.8        9.1        8.4 
  5      10.9       11.4       11.8       14.0        9.9       16.3       14.3 
  6       6.3        7.5        7.2        6.2       10.3       10.5       10.4 
  7       8.2        9.0       10.4       11.1        9.6        9.6        8.2 
  9       8.7       10.3        9.1       10.4        6.8        5.6        8.2 
 14       4.7        4.5        4.4        4.5        4.7        5.5        3.4 
 15       5.4        7.2        6.6        5.9        4.1        5.3        5.1 
 16      11.6       10.2        9.3       12.8       10.1        7.4       10.5 
 17      10.3        8.3        8.6        8.4        7.6        8.1        6.1 
 18       9.1        9.2        9.9       10.5       10.7        6.5        4.8 
 19      12.1        8.9       10.0        7.4        8.3        4.8        6.1 
 20       3.0        4.5        5.5        5.8        4.5        8.9        7.3 
 21       4.3        5.1        4.1        6.3        7.3        4.4        6.1 
 22       5.2        4.5        3.4        3.6        6.0        7.2       10.3 
 23       5.8        6.0        3.5        6.7       10.9        8.5        5.7 
 24      10.9       10.4       12.9       15.8       14.8       12.3       12.1 
 25       8.8        7.1        7.1        7.0        6.4        6.5        6.4 
 26       6.1        4.7        5.2        4.0        2.9        2.0        2.1 
 27      10.3       10.9       11.0       10.6        8.7        8.0        6.2 
 28       9.6        7.8        8.4        8.3        8.3        6.6        6.5 
 29       6.6        6.0        6.0        5.3        5.4        5.2        3.5 
 31       9.7        8.1        7.1        6.7        8.0        7.7        6.5 
_______________________
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 755 (1994 Jun 26 - Jul 02)
      94  6 26   94  6 27   94  6 28   94  6 29   94  6 30   94  7  1   94  7  2
Fiducial 10.3       11.1       10.8       11.0       10.4       12.2       12.2
Total    16.3       25.1       34.6       21.0       20.3       22.1       22.0
END SITE SUMMARY TABLE

JPL GROUND STATION INCLUSION TABLE           GPS week 755 (1994 Jun 26 - Jul 02)
      94  6 26   94  6 27   94  6 28   94  6 29   94  6 30   94  7  1   94  7  2
site    % data
ALBH #      0        105          0          0          0          0          0
ALGO*#    104        105        104        104        105        104        105
AREQ #    107        107        106        103        104        103        104
BRMU #      0         78          0          0          0          0          0
CHTP #      0         84          0          0          0          0          0
DRAO #      0        103          0          0          0          0          0
EISL #      0          0         90         89         82         78          0
FAIR*      95         97         96        104        105        105        104
FORT #    103        103        102         82         91        103        104
GODE #      0         85          0          0          0          0          0
GOLD*      72         73         79         82         75        104        104
GRAZ        0        106          0          0          0          0          0
HART*      78         94         86         79         94         90         60
HARV #      0        100          0          0          0          0          0
HERS        0         79          0          0          0          0          0
HOBA #    103        103         99        101        103        101        102
JPLM #      0        109        107        110        109        109        109
KIRU #      0         97          0          0          0          0          0
KOKB*       0         23          0          0         31         99        102
KOSG*     104        104        105        101        104        106        105
KOUR        0        103        103        104        105        105        105
MADR*      83         88         77         56         65         73         67
MAS1 #      0        107          0          0          0          0          0
MASP        0        108          0          0          0          0          0
MATE        0        106          0          0          0          0          0
MCMU #    113        111          0          0          0          0          0
MDO1 #      0         99          0          0          0          0          0
METS        0        103          0          0          0          0          0
NYAL        0         94        114        113        113        114        116
ONSA #     98         74         98        102        103         83        102
PAMA       72         69         71         85         77         80         77
PIE1 #      0        106          0          0          0          0          0
QUIN #      0        102        100        103        102        102        104
RCM5 #      0        106          0          0          0          0          0
SANT*      67         79         70         79         69         72         71
STJO #      0        108          0          0          0          0          0
TAIW        0        109          0          0          0          0          0
TIDB*      86         82         83         82         78         83         91
TROM*     108        111        110        107        107        110        109
USUD #      0         97          0          0          0          0          0
WEST #      0        106          0          0          0          0          0
WETT*      24         95        105         99        105        105        105
YAR1*     107         56         64         96          0         63         92
YELL*#    103        105        105        107        106        108        105
_______________________
*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 755 (1994 Jun 26 - Jul 02)
      94  6 26   94  6 27   94  6 28   94  6 29   94  6 30   94  7  1   94  7  2
comp log10(rms/ps)
PRN01     3.9        4.1        4.0        3.6        3.8        3.6        3.4
PRN02     3.6        3.6        3.3        3.4        3.5        3.3        3.8
PRN04     3.6        3.8        3.3        3.7        3.5        3.4        3.6
PRN05     3.0        3.4        3.9        3.1        3.4        3.3        3.3
PRN06     3.0        3.3        3.6        3.6        3.3        3.0        2.8
PRN07     3.6        3.6        3.4        3.6        3.2        3.6        3.6
PRN09     3.2        3.1        3          3.7        3.6        3.7        3.2
PRN14     3.9        4.2        4.2        3.7        3          3.8        3.5
PRN15     4.1        4.1        4.1        3.9        4.0        3.7        3.8
PRN16     3.4        3.3        3.3        3.0        3.1        2.8        3.3
PRN17     4.0        3.8        3.1        3.2        3.4        3.4        3.8
PRN18     3.6        3.6        3.2        3.2        3.2        3.5        3.4
PRN19     3.2        3.5        3.1        3.5        3.6        3.4        3.6
PRN20     3.4        3.9        3.6        3.4        3.4        3.2        3.3
PRN21     3.9        3.6        3.9        3.7        3.9        3.6        3.6
PRN22     3.8        4.6        3.7        3.7        4.4        3.7        3.4
PRN23     4.0        3.3        3.6        3.5        3.8        3.6        3.4
PRN24     3.7        3.1        3.2        3.2        3.1        3.0        3.4
PRN25     3.9        3.6        4.0        3.7        3.6        3.3        3.4
PRN26     3.2        3.4        3.2        3.7        3.5        3.1        3.2
PRN27     3.4        3.0        3.0        3.6        3.5        3.6        3.2
PRN28     4.1        3.7        2.8        3.7        3.7        3.5        3.4
PRN29     3.6        3.7        4          3.6        3          3          3.7
PRN31     3.9        3.7        3          3.7        4          4          3.3
AREQ      2.7        3.1        3.3        3.4        3.4        3.3        3.4
EISL                            3          3.5        3.6        3             
FAIR      3.7        3.4        3.6        3.7        3.5        3.8        3.3
FORT      3.3        3.4        2.7        3          3.1        3.1        2.9
GOLD      3.7        3.5        3.4        3.1        3.5        3.3        2.9
HART      4.2        3.6        3.9        3.6        3.3        3.9        3.3
HOBA      3.9        3.8        4.0        3.7        3.8        3.5        3.5
JPLM                 3          2.8        3.2        3.2        3.3        3.1
KOKB                                                  4          3.7        3.7
KOSG      3.9        3.9        3.6        3.6        3.9        3.9        3.8
KOUR                 4          3.9        4.0        4.1        4.2        4.2
MADR      3.6        3.8        4.0        3.9        4.1        4.0        3.9
MCMU      3.9        3                                                         
NYAL                 4          3.7        4.0        4.1        3.8        3.9
ONSA      2.9        3          3.0        3.0        3.2        3.1        2.9
PAMA      4.0        3.6        4.0        4.0        3.8        3.6        3.6
QUIN                 3          2.6        3.1        3.0        2.9        3.2
SANT      3.6        4.1        3.8        3.8        3.6        3.8        3.6
TIDB      3.9        3.9        4.0        4.0        3.9        3.5        3.8
TROM      4.0        3.9        4.1        4.1        3.8        4.3        4.1
WETT      3          3.5        3.6        3.8        3.5        3.8        3.8
YAR1      4.0        4          3          4                     3          3.5
YELL      2.6        2.9        2.9        2.6        2.8        3.1        3.1
_______________________
END CLOCK REPEATABILITY TABLE