[IGSREPORT-206] JPL Analysis Report (week 688)
D.
D.
Thu Apr 8 08:23:11 PDT 1993
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IGS Electronic Report 8-APR-1993 08:23:11 Message Number 206
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From: D. Jefferson
Subj: JPL Analysis Report (week 688)
------------------------------------
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
______________________________________________________________________________
jpl06887.sum This text file.
jpl06887.erp Earth rotation parameters for GPS week 688.
jpl06880.sp1,sp3 GPS ephemerides for Sun, Mar 14, sp1 and sp3 formats
jpl06881.sp1,sp3 GPS ephemerides for Mon, Mar 15, sp1 and sp3 formats
jpl06882.sp1,sp3 GPS ephemerides for Tue, Mar 16, sp1 and sp3 formats
jpl06883.sp1,sp3 GPS ephemerides for Wed, Mar 17, sp1 and sp3 formats,
(no PRN18)
jpl06884.sp1,sp3 GPS ephemerides for Thu, Mar 18, sp1 and sp3 formats,
(no PRN18)
jpl06885.sp1,sp3 GPS ephemerides for Fri, Mar 19, sp1 and sp3 formats,
(no PRN22)
jpl06886.sp1,sp3 GPS ephemerides for Sat, Mar 20, sp1 and sp3 formats,
(no PRN22)
______________________________________________________________________________
We continue to deweight data from PRN11/GPS08; orbit repeatabilites for this
spacecraft remain at the meter-level. Also, according to the file gpsn1.txt
obtained from tycho.usno.mil, PRN18/GPS18 was scheduled unusable for up to 8
hours on March 17 (day 076), beginning at 15:15 UT (a maneuver). With this
information, and conforming to our 30-hr data processing interval, we have
chosen to delete PRN18 on days 076 and 077 as well.
We continue to deweight data for the new satellite PRN22/GPS22. However, no
broadcast ephemeris data was available for PRN22/GPS22 on March 19 and 20;
therefore, we have excluded this satellite from our processing for these two
days. Lastly, although PRN03 was deweighted on March 19, there is no evidence
of anomolous behavior for this satellite.
Data from MCMU have been excluded for the entire week of analysis in accordance
with IGS Message Nos. 209. Tracking data from FAIR has be re-instated to our
analyses for this week, after being cleared for usage by JPL GPS Network
Operations. Finally, data from NLIB has been weighted normally for the entire
week of analysis.
WARNING: Data from PRN03/GPS11 have been deweighted for day 078 (Mar 19).
WARNING: Data from PRN11/GPS08 have been deweighted for the entire GPSweek 688.
WARNING: Due to the maneuver of PRN18/GPS18, data from this satellite have been deleted for days 076 and 077 (Mar 17,18).
WARNING: Data from PRN22/GPS22 have been deweighted for days 073 and 075-077 (Mar 14,16-18); data from this satellite have been deleted for days 078 and 079 (Mar 19,20) as no broadcast data were available.
WARNING: Data from MCMU have been excluded for the entire GPSweek 688.
JPL LODR TABLE GPS week 688 (1993 Mar 14 - Mar 20)
MJD LODR +/-
(ms/day)
49060.5 2.84 0.06
49061.5 2.82 0.06
49062.5 2.80 0.06
49063.5 2.68 0.06
49064.5 2.83 0.06
49065.5 2.85 0.06
49066.5 2.79 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 688 (1993 Mar 14 - Mar 20)
MJD X Y UT1R-UTC XSIG YSIG UTSIG RMS XYC XUC YUC STA SAT PASS
'' '' sec '' '' sec
49060.5 .16007 .19411 -.12940 .00016 .00018 .00000 .0 .12 .00 .00 33 22 0
49061.5 .15778 .19275 -.13217 .00016 .00018 .00000 .0 .10 .00 .00 34 22 0
49062.5 .15536 .19123 -.13494 .00017 .00019 .00000 .0 .11 .00 .00 34 22 0
49063.5 .15282 .19024 -.13771 .00018 .00020 .00000 .0 .13 .00 .00 34 21 0
49064.5 .14996 .18898 -.14049 .00019 .00021 .00000 .0 .11 .00 .00 34 21 0
49065.5 .14763 .18696 -.14326 .00018 .00020 .00000 .0 .09 .00 .00 34 21 0
49066.5 .14605 .18539 -.14604 .00018 .00020 .00000 .0 .10 .00 .00 33 21 0
END UTPM TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 688:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 688 (1993 Mar 14 - Mar 20)
93 3 14 93 3 15 93 3 16 93 3 17 93 3 18 93 3 19 93 3 20
prn 3d rss (m)
1 0.40 0.16 0.13 0.22 0.36 0.17 0.46
2 0.33 0.21 0.22 0.32 0.27 0.23 0.32
3 0.25 0.52 0.40 0.33 1.04 #0.62 0.85
11 #1.57 #1.27 #2.18 #1.78 #1.93 #1.03 #2.93
12 0.30 0.34 0.45 0.50 0.44 0.45 0.44
13 0.56 0.30 0.21 0.61 0.43 0.37 0.44
14 0.50 0.35 0.36 0.19 0.39 0.41 0.51
15 0.21 0.17 0.18 0.20 0.17 0.22 0.30
16 0.26 0.35 0.29 0.59 2.45 0.28 0.32
17 0.19 0.18 0.13 0.30 0.34 0.22 0.16
18 0.47 0.35 0.5 0.2 0.37
19 0.30 0.39 0.23 0.22 0.31 0.25 0.47
20 0.63 0.58 0.26 0.17 0.44 0.32 0.31
21 0.49 0.37 0.34 0.28 0.40 0.42 0.40
22 #49.34 41.94 #51.41 #95.35 #34.0
23 0.57 0.51 0.50 0.41 0.58 0.61 0.55
24 0.45 0.48 0.27 0.38 0.43 0.34 0.43
25 0.30 0.19 0.22 0.31 0.37 0.31 0.27
26 0.29 0.40 0.21 0.18 0.27 0.16 0.27
27 0.39 0.24 0.22 0.26 0.40 0.22 0.23
28 0.38 0.46 0.14 0.15 0.23 0.43 0.56
29 0.75 0.66 0.57 0.35 0.33 0.40 0.55
_______________________
#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 14 93 3 15 93 3 16 93 3 17 93 3 18 93 3 19 93 3 20
prn 3d rss (m)
1 10.3 10.7 10.7 10.6 10.4 11.1 10.7
2 7.6 10.4 6.4 7.3 7.9 7.5 6.8
3 8.9 6.1 6.5 6.8 10.2 #8.3 7.8
11 #6.1 #6.2 #6.7 #13.6 #7.1 #9.0 #9.7
12 26.9 16.7 7.2 5.16 3.2 4.7 4.5
13 1.9 1.8 4.0 4.1 2.9 3.0 3.2
14 11.2 11.1 8.9 10.0 11.3 10.5 11.0
15 4.8 7.5 4.3 9.8 3.8 4.4 3.9
16 5.0 6.2 8.9 7.2 8.6 8.7 9.8
17 7.4 7.6 6.6 7.3 8.6 5.2 5.7
18 10.7 10.4 11.2 8.9 11.4
19 6.8 2.6 2.5 4.6 4.8 5.5 3.5
20 6.6 7.0 6.2 5.6 6.0 5.5 5.0
21 8.4 13.5 6.9 5.3 5.5 4.3 4.1
22 #122.1 153.9 #238.7 #2105.1 #3808.7
23 11.8 14.3 8.1 13.4 15.9 10.4 10.0
24 4.9 7.5 9.9 9.7 7.0 5.6 7.8
25 10.1 14.3 11.7 7.8 9.3 8.0 7.3
26 5.3 6.7 5.1 4.3 4.7 4.5 4.9
27 7.1 5.1 5.1 5.5 5.6 5.7 4.5
28 6.4 5.6 11.0 5.4 4.3 4.0 4.6
29 12.7 13.2 10.1 12.4 8.8 13.3 14.2
_______________________
#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 688 (1993 Mar 14 - Mar 20)
93 3 14 93 3 15 93 3 16 93 3 17 93 3 18 93 3 19 93 3 20
site % data
ALBH 101 106 101 95 94 93 100
ALGO* 102 96 89 91 94 96 101
DRAO 104 109 103 96 91 97 103
FAIR 0 8 0 0 95 93 99
GOLD 18 81 16 81 89 87 91
GRAZ 53 67 77 96 95 96 60
HART* 101 110 101 96 95 96 102
HERS 98 107 101 99 99 97 104
JPLM 104 109 105 99 96 94 101
KOKB* 106 106 106 100 99 101 105
KOSG 104 110 105 101 98 97 102
KOUR 110 114 103 89 84 93 20
MADR* 94 100 102 95 95 98 99
MASP 88 19 88 94 96 97 101
MATE 98 104 100 94 85 94 96
METS 106 113 106 102 98 89 99
NLIB 97 101 99 93 93 94 95
NYAL 108 125 120 105 106 60 0
ONSA 91 90 80 94 88 89 91
PAMA 97 88 97 49 8 80 96
PIE1 92 96 92 91 86 79 83
QUIN 0 0 31 50 0 28 93
RCM2 89 104 104 72 79 58 0
SANT* 107 112 107 97 89 98 108
STJO 101 106 101 93 90 89 101
TAIW 106 112 108 104 102 99 104
TIDB 101 110 104 101 99 94 104
TROM* 112 118 112 107 107 109 111
USUD 105 105 103 101 102 97 101
VNDP 0 0 0 0 0 0 77
WEST 78 83 8 9 85 94 101
WETT 45 69 101 98 94 95 101
YAR1* 108 113 109 104 103 98 109
YELL 106 113 107 101 99 102 104
_______________________
*Indicates fiducial site; #indicates deweighted site.
END GROUND STATION INCLUSION TABLE
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