Subject: [IGSREPORT-237] JPL Analysis Report (week 690)
From: G. Blewitt
Date: 24 APR 1993 13:07:33

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IGS Electronic Report     24-APR-1993 13:07:33       Message Number 237
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From: G. Blewitt
Subj: JPL Analysis Report (week 690)
------------------------------------

Submitted by

J F Zumberge, G Blewitt, M B Heflin, D C Jefferson, F H Webb

all at the Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, CA  91109.

The following files have been posted on BODHI (for access to BODHI contact
[email-masked]):

______________________________________________________________________________
filename               contents
______________________________________________________________________________
jpl06907.sum           This text file.
jpl06907.erp           Earth rotation parameters for GPS week 690.
jpl06907.sp1           GPS ephemerides for GPS week 690, sp1 format.
jpl06907.sp3            "       "       "   "   "    " , sp3   "   .
______________________________________________________________________________

We continue to deweight data from PRN11/GPS08 and PRN22/GPS22 for all days;
orbit repeatabilites for these spacecraft remain at the 1 meter and 10 meter
levels respectively. Data from MCMU have been excluded for the entire week of
analysis in accordance with IGS Message No. 209.

This week's analysis includes the processing of data from two new global network
stations: BRMU (Bermuda Islands) and HOBA (Hobart, Tazmania). Keeping in line
with our usual practices, data from these stations were deweighted for week 690.
The following nominal coordinates were assumed, and the station locations were
estimated (unconstrained) each day:

   BRMU:  X =  2304706.9968 m,    Y = 4874815.1945 m,    Z =  3395188.5590 m
   HOBA:  X = -3950184.0430 m,    Y = 2522364.5480 m,    Z = -4311588.6140 m

WARNING: Data from PRN11/GPS08 have been deweighted for the entire GPSweek 690.
WARNING: Data from PRN22/GPS22 have been deweighted for the entire GPSweek 690.
WARNING: Data from MCMU have been excluded for the entire GPSweek 690.

JPL LODR TABLE                               GPS week 690 (1993 Mar 28 - Apr 03)
  MJD       LODR     +/-
          (ms/day)
 49074.5    2.75     0.06
 49075.5    2.71     0.06
 49076.5    2.59     0.06
 49077.5    2.61     0.06
 49078.5    2.49     0.06
 49079.5    2.85     0.06
 49080.5    2.52     0.06
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 690 (1993 Mar 28 - Apr 03)
  MJD       X        Y       UT1R-UTC XSIG    YSIG   UTSIG  RMS  XYC  XUC  YUC STA SAT PASS
           ''        ''        sec     ''     ''      sec
 49074.5   .12589   .17538  -.16619  .00018  .00020  .00000  .0  .07  .00  .00  37 22  0
 49075.5   .12266   .17409  -.16897  .00017  .00020  .00000  .0  .07  .00  .00  37 22  0
 49076.5   .11958   .17237  -.17175  .00017  .00019  .00000  .0  .06  .00  .00  36 22  0
 49077.5   .11722   .17092  -.17452  .00022  .00024  .00000  .0  .07  .00  .00  37 22  0
 49078.5   .11464   .17041  -.17729  .00016  .00019  .00000  .0  .06  .00  .00  38 22  0
 49079.5   .11222   .16983  -.18007  .00016  .00018  .00000  .0  .07  .00  .00  37 22  0
 49080.5   .10901   .16959  -.18285  .00017  .00019  .00000  .0  .07  .00  .00  38 22  0
END UTPM TABLE

The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 690:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]

JPL ORBIT REPEATABILITY TABLE                GPS week 690 (1993 Mar 28 - Apr 03)
      93  3 28   93  3 29   93  3 30   93  3 31   93  4  1   93  4  2   93  4  3
prn   3d rss (m)
  1       0.17       0.24       0.39       0.32       0.33       0.20       0.31
  2       0.31       0.14       0.12       0.07       0.10       0.09       0.18
  3       0.48       0.43       0.55       0.41       0.49       0.35       0.31
 11      #1.33      #1.64      #1.61      #1.35      #0.59      #0.81      #0.35
 12       0.18       0.21       0.36       0.21       0.30       0.19       0.23
 13       0.39       0.46       0.41       0.40       0.42       0.27       0.25
 14       0.42       0.43       0.38       0.23       0.15       0.20       0.19
 15       0.31       0.29       0.30       0.15       0.10       0.12       0.14
 16       0.57       0.47       0.36       0.19       0.27       0.20       0.29
 17       0.37       0.55       0.48       0.32       0.37       0.27       0.25
 18       0.34       0.39       0.51       0.30       0.30       0.29       0.28
 19       0.15       0.39       0.34       0.17       0.22       0.30       0.35
 20       0.27       0.18       0.32       0.29       0.33       0.24       0.33
 21       0.25       0.17       0.14       0.21       0.13       0.28       0.26
 22     #70.12     #99.74     #40.68     #18.04     #43.61     #84.34    #152.63
 23       0.28       0.10       0.18       0.32       0.30       0.39       0.43
 24       0.33       0.34       0.31       0.16       0.60       0.48       0.18
 25       0.71       0.39       0.32       0.43       0.56       0.39       0.53
 26       0.47       0.17       0.20       0.18       0.39       0.17       0.15
 27       0.56       0.49       0.35       0.18       0.22       0.22       0.18
 28       0.18       0.12       0.22       0.36       0.36       0.18       0.34
 29       0.71       0.55       0.44       0.43       0.43       0.38       0.25
_______________________
#Indicates deweighted satellite.
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  3 28   93  3 29   93  3 30   93  3 31   93  4  1   93  4  2   93  4  3
prn   3d rss (m)
  1      10.6       10.1        8.8        9.2       10.7        9.3        8.8
  2       6.6        6.7        5.1        5.3        4.6        5.5        4.6
  3      10.2       11.4        7.7        9.0       11.0        9.1       10.8
 11      #6.2       #6.9       #9.2       #4.7       #4.7       #6.5       #5.2
 12       5.7        5.9        6.3        5.1        4.6        4.6        5.4
 13       4.9        4.6        4.9        6.9        6.6        4.3        3.1
 14       7.7        7.2        6.0        7.6        9.9        6.4        7.4
 15       4.3        7.5        9.0        4.0        7.3        7.3        6.5
 16       5.0        4.7        7.4        8.7        6.1        5.7        5.5
 17       9.1        9.1        8.1        9.7        8.9        7.7        7.3
 18       8.3        9.4        8.7       12.7       17.8       23.1       16.2
 19       3.7        3.2        3.7        3.5        3.9        1.8        3.4
 20       8.0        7.9        8.0        6.8        5.5        5.4        5.9
 21       7.5        5.9        5.1        6.6        5.6        4.3        4.2
 22    #226.6     #252.2     #373.5     #316.2     #317.0     #362.6      #27.2
 23       7.5       10.8       15.3        4.0        5.0        9.2       16.0
 24       5.7        8.5        6.0        5.7        7.5        7.9        5.7
 25       2.9        3.4        5.1        5.8        7.2        6.8        7.6
 26       7.3        4.7        6.6        5.1        4.6        4.8        7.8
 27       4.5        4.8        4.8        4.2        4.8        3.7        3.3
 28       7.7        9.1        3.7        5.0        3.8        4.2        4.9
 29       6.9       11.8        7.2        7.9       10.5        7.8        8.6
_______________________
#Indicates deweighted satellite.
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES

The following table, as explained in IGS Report No. 99, indicates the amount
of data from each tracking site used in this week's analysis:

JPL GROUND STATION INCLUSION TABLE           GPS week 690 (1993 Mar 28 - Apr 03)
      93  3 28   93  3 29   93  3 30   93  3 31   93  4  1   93  4  2   93  4  3
site    % data
ALBH       17         90        100         82          9          0          8
ALGO*     102        103         92         80         93        102        103
BRMU      #62        #92       #103        #89        #96        #57        #76
DRAO      102        102        102         90         86         44        101
FAIR*      98         98         99         88         98         99         97
GOLD       93         90         84         68         91         94         91
GRAZ       97        101        102         90        102         63         83
HART*     104        103        103         89        104        104        103
HARV      103         99         99         87         89         88         96
HERS      101        101        100         89        100        101        102
HOBA      #94        #87       #100        #90       #101       #103       #101
JPLM       99         99         97         88        102         91        101
KOKB*     102        102        104         92        106        106        105
KOSG       98        105        106         91        105        105        101
KOUR       67        113        113         94        105        113        114
MADR*      94         92         90         89         95         97         83
MASP       95         99        102         89        100         76         99
MATE       54         84         90         84         93         94         93
METS      107        106        107         91        106        107        107
NLIB      101         99         94         84         93         76        103
NYAL       24         67         93        107        120        121        119
ONSA       88         92        105         91        106         81         87
PAMA       90         97         99         90         99         99         98
PIE1      103        103        103         92        101        103        103
QUIN      100         97         96         81         90         92         93
RCM2       69         30          0         32         95         98        104
SANT*     105        106        107         96        106        108        106
STJO      103        104        104         88        103        104        105
TAIW      107        107        107         95        107        107         65
TIDB      101         91         96         91        101        100        101
TROM*     114        119        116        101        118        117        116
USUD      101        102        102         91        104        104        102
VNDP      100        100        100         90         99         99         99
WEST       93         94        102         89         99        103        102
WETT      103         96         95         85        100        103         93
YAR1*     108        109        109         96        108        109        109
YELL      102        105        105         92        106        107        108
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE