[IGSREPORT-149] JPL Analysis Report
James
James
Mon Feb 22 00:00:00 PST 1993
From: James F Zumberge
Subject: JPL Analysis Report
-----------------------------
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
starr at logos.jpl.nasa.gov):
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl06827.sum This text file.
jpl06827.erp Earth rotation parameters for GPS week 682.
jpl06827.sp1 GPS ephemerides for GPS week 682, sp1 format.
jpl06827.sp3 " " " " " " , sp3 " .
______________________________________________________________________________
Beginning with the analysis of Feb 4, we have changed our data interval
from 5 minutes to 10 minutes, because we have found that the resulting
difference in the orbits, receiver locations, and earth orientation
parameters are small compared to the (estimated) accuracies of these
quantities.
Data from PRN11/GPS08 were deweighted this week, as in recent weeks.
Data from PRN29/GPS29 were also deweighted for the Jan 31 and Feb 1
analyses; beginning with Feb 2, its data are weighted normally.
MCMU data were not used except on Feb 1.
Data from VNDP were de-weighted throughout the week, not because we
suspect they are bad, but rather because VNDP is a relatively new site.
(In general, we remove or deweight data from specific sites in the
event that such data results in unusually large post-fit residuals in
phase and/or pseudorange, or in anticipation of such results.)
We denote the moved antenna at Kokee Park by KOK2 (instead of KOKB).
Data from KOK2 were deweighted for Feb 2 - Feb 5.
WARNING: Data from PRN's 11 and 29 (GPS08 and GPS29) have been deweighted for some or all of week 682.
JPL LODR TABLE GPS week 682 (1993 Jan 31 - Feb 06)
MJD LODR +/-
(ms/day)
49018.5 2.62 0.05
49019.5 2.81 0.05
49020.5 2.85 0.05
49021.5 2.79 0.06
49022.5 2.74 0.06
49023.5 2.76 0.06
49024.5 2.77 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 682 (1993 Jan 31 - Feb 06)
MJD X Y UT1R-UTC XSIG YSIG UTSIG RMS XYC XUC YUC STA SAT PASS
'' '' sec '' '' sec
49018.5 .20850 .28111 -.01426 .00014 .00016 .00000 .0 .08 .00 .00 32 21 0
49019.5 .20751 .27819 -.01674 .00014 .00015 .00000 .0 .05 .00 .00 35 21 0
49020.5 .20605 .27507 -.01923 .00016 .00017 .00000 .0 .07 .00 .00 34 21 0
49021.5 .20570 .27246 -.02173 .00019 .00020 .00000 .0 .11 .00 .00 31 21 0
49022.5 .20596 .26953 -.02424 .00022 .00021 .00000 .0 .05 .00 .00 33 21 0
49023.5 .20626 .26712 -.02676 .00019 .00018 .00000 .0 .04 .00 .00 34 21 0
49024.5 .20634 .26482 -.02928 .00018 .00018 .00000 .0 .06 .00 .00 34 21 0
END UTPM TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week www:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 682 (1993 Jan 31 - Feb 06)
93 1 31 93 2 1 93 2 2 93 2 3 93 2 4 93 2 5 93 2 6
prn 3d rss (m)
1 0.45 0.36 0.15 0.42 0.51 0.58 0.49
2 0.28 0.36 0.28 0.30 0.23 0.29 0.23
3 0.23 0.51 0.39 0.25 0.11 0.18 0.15
11 1.95 1.95 1.60 2.63 2.50 1.65 1.52
12 0.67 0.40 0.67 0.50 0.53 0.35 0.22
13 0.48 0.61 0.84 0.78 0.81 0.69 0.74
14 0.24 0.36 0.56 0.87 0.49 0.35 0.43
15 0.27 0.27 0.34 0.32 0.32 0.19 0.30
16 0.28 0.39 0.27 0.29 0.24 0.24 0.25
17 0.16 0.26 0.28 0.36 0.30 0.26 0.30
18 0.14 0.25 0.25 0.21 0.24 0.27 0.32
19 0.14 0.27 0.19 0.15 0.23 0.34 0.28
20 0.34 0.62 0.65 0.64 0.64 0.17 0.35
21 0.23 0.63 0.23 0.45 0.53 0.50 0.33
23 0.31 0.57 0.45 0.60 0.40 0.45 0.43
24 0.33 0.56 0.51 0.47 0.39 0.41 0.42
25 0.30 0.50 0.49 0.69 0.81 0.15 0.22
26 0.31 0.34 0.26 0.29 0.16 0.41 0.33
27 0.23 0.39 0.29 0.37 0.18 0.34 0.24
28 0.20 0.26 0.24 0.29 0.29 0.12 0.32
29 0.66 0.56 0.42 0.68 0.54 0.37 0.40
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 1 31 93 2 1 93 2 2 93 2 3 93 2 4 93 2 5 93 2 6
prn 3d rss (m)
1 4.7 6.0 6.9 6.2 6.9 6.8 5.8
2 5.9 6.2 7.0 5.4 7.1 7.1 6.7
3 7.6 7.9 8.6 7.1 9.0 9.1 7.6
11 21.4 13.0 11.3 16.6 11.9 11.1 9.8
12 7.9 9.5 11.4 13.2 7.5 12.8 15.0
13 5.8 2.6 6.6 5.8 5.3 4.8 5.3
14 4.5 7.3 5.1 5.4 6.7 7.7 5.6
15 4.4 7.2 5.3 4.3 6.8 4.9 8.7
16 6.2 4.6 5.6 5.9 4.6 3.7 3.5
17 12.1 10.5 4.5 4.9 6.9 7.9 6.3
18 7.7 11.4 10.4 6.3 9.8 8.6 11.6
19 6.8 5.5 3.9 3.7 6.4 3.5 2.8
20 10.5 13.0 12.9 14.2 14.1 7.8 11.5
21 7.5 3.7 5.0 5.3 5.5 6.9 3.6
23 7.7 13.5 8.5 5.6 9.4 7.4 3.9
24 18.0 13.8 17.4 19.9 16.1 12.5 14.7
25 5.7 6.7 4.5 4.4 5.8 5.4 6.1
26 5.9 8.3 7.2 6.4 5.6 6.6 5.9
27 14.2 11.6 13.0 12.4 9.4 11.0 11.9
28 5.6 5.9 4.2 10.3 0.0 4.2 5.1
29 17.0 20.2 17.2 13.8 13.4 16.8 12.0
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 682 (1993 Jan 31 - Feb 06)
93 1 31 93 2 01 93 2 02 93 2 03 93 2 04 93 2 05 93 2 06
ALBH 92 93 98 101 102 102 102
ALGO* 89 83 92 96 102 102 102
DRAO 97 98 104 104 105 105 105
FAIR* 89 10 76 106 111 112 111
GOLD 89 90 86 77 96 95 88
GRAZ 97 98 102 101 101 101 101
HART* 101 96 91 105 103 104 102
HARV 95 97 95 21 58 96 99
HERS 0 0 0 0 44 41 68
JPLM 95 95 100 104 103 105 106
KOK2 0 9 92 103 105 104 104
KOKB* 98 87 12 0 0 0 0
KOSG 97 96 102 98 38 71 102
KOUR 94 96 105 105 104 104 101
MADR* 89 89 94 95 94 96 86
MASP 99 100 103 94 61 92 100
MATE 95 97 99 99 101 101 101
MCMU 0 91 0 0 0 0 0
METS 98 101 106 106 106 105 104
NYAL 0 43 11 0 48 120 122
ONSA 78 71 95 91 71 50 93
PAMA 95 95 99 61 93 97 99
PIE1 67 53 98 62 0 34 98
QUIN 97 97 75 93 21 98 96
RCM2 88 87 96 79 85 103 104
SANT* 99 99 94 9 44 105 107
STJO 97 98 98 98 99 98 98
TAIS 100 101 105 105 105 105 105
TIDB 96 94 97 99 101 102 92
TROM* 108 98 111 103 10 48 116
USUD 101 101 104 105 105 106 105
VNDP 27 23 1 0 26 94 10
WETT 92 91 97 94 72 45 86
YAR1* 94 92 102 106 106 106 106
YELL 102 104 111 111 110 110 108
_______________________
*Indicates fiducial site.
END GROUND STATION INCLUSION TABLE
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