[IGSREPORT-2620] Wk 0850 JPL Analysis Report
D
D
Thu May 2 16:15:48 PDT 1996
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IGS Electronic Report Thu May 2 16:15:48 PDT 1996 Message Number 2620
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Author: D C Jefferson
Subject: Wk 0850 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0850 (DAYS 112-118, DATES 1996 Apr 21 - Apr 27)
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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/0850. These files have also been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl08507.sum This text file.
jpl08507.erp Earth rotation parameters for GPS week 850.
jpl08507.snx Ground station coordinates for GPS week 850, SINEX format.
jpl0850[0-6].sp3 GPS ephemerides for GPS week 850, sp3 format.
______________________________________________________________________________
Mean Orbit Repeatability (see table below): 20.2 cm
STRATEGY UPDATE
---------------
Beginning this week, we attempt ambiguity resolution on the entire global
network (with orbit adjustment), without an imposed limit on baseline length.
GENERAL
-------
According to the file nanu1996.mes obtained from the IGS CBIS, PRN06 was
unusable on day 117 for maintenance/repositioning. Data from this satellite
did not meet our convergence criteria for this nor the previous day (116),
and were subsequently excluded from our analyses for both days.
Also, PRN18 was unsuable for an indefinite period beginning day 112. Data
from this satellite did not meet our convergence criteria for the following
day (113), and was excluded from this day's analysis only. Although included
on adjacent days 112 and 114, anomalous behavior was observed and we have
elected to remove this satellite from these days' sp3 orbit products as
well (jpl08500.sp3 and jpl08502.sp3).
For various reasons, some days processed this week were analyzed with a
global network of less than the usual 37 stations:
96apr24 - only 28 sites used
96apr26 - only 30 sites used
96apr27 - only 30 sites used
Also, at this time, the solutions for day 119 are not available, hence the
single-decimal level of precision for day 118 in the orbit repeatability
table.
Due to potential problems, data from stations mentioned below were not
considered for use in the global solution for the day indicated. (For
geographical reasons, they may not have been used in any case.)
WARNING: Data from BOGT, BRAN, MATE, POTS excluded day 112.
WARNING: Data from PRN18, BOGT, BRAN, CHAT, CHIL, FORT, HOPB, MONP, TIBB
excluded day 113.
WARNING: Data from BRAN, CHAT, CMBB, DAM2, FORT, LAMA, TIBB excluded day 114.
WARNING: Data from FORT, TIBB excluded day 115.
WARNING: Data from PRN06, KERG, MATE, MOLA, PERT, TIBB, TID2, USC1, WEST, YAR1 excluded day 116.
WARNING: Data from PRN06, TIBB, TMGO, USNA excluded day 117.
In the following table, UT1R-UTC are the integrated values based on estimated
LODR values in the adjacent column. See IGS Report No. 1498 (jpl07827.sum)
for details:
JPL ERP TABLE GPS week 850 (1996 Apr 21 - Apr 27)
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
50194.50 -9725 55589 324712 2184 3 4 9 9 37 12 25 405 126
50195.50 -9379 55753 322538 2164 4 4 9 9 37 12 24 361 151
50196.50 -9011 55950 320362 2188 4 4 9 9 37 10 25 378 184
50197.50 -8673 56116 318165 2205 4 4 9 9 28 10 25 373 163
50198.50 -8329 56314 315935 2255 5 6 11 11 37 8 24 347 139
50199.50 -7945 56400 313720 2176 3 3 9 9 30 11 24 395 105
50200.50 -7522 56537 311514 2236 3 3 9 9 30 11 25 404 150
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 850:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 850 (1996 Apr 21 - Apr 27)
96 4 21 96 4 22 96 4 23 96 4 24 96 4 25 96 4 26 96 4 27
prn 3d rss (m)
1 0.18 0.22 0.17 0.18 0.13 0.24 0.2
2 0.21 0.26 0.27 0.49 0.48 0.42 0.3
3 0.45 0.43 0.49 0.38 0.40 0.58 0.5
4 0.26 0.13 0.11 0.10 0.13 0.07 0.1
5 0.15 0.18 0.13 0.18 0.11 0.16 0.1
6 0.17 0.10 0.09 0.1
7 0.30 0.14 0.11 0.12 0.18 0.09 0.1
9 0.12 0.16 0.16 0.16 0.15 0.20 0.1
14 0.19 0.14 0.13 0.10 0.08 0.09 0.1
15 0.12 0.12 0.17 0.14 0.17 0.13 0.1
16 0.46 0.32 0.63 0.52 0.49 0.36 0.1
17 0.31 0.19 0.15 0.17 0.10 0.17 0.1
18 1.3 0.2 0.04 0.09 0.07 0.0
19 0.26 0.16 0.21 0.15 0.20 0.15 0.1
20 0.15 0.14 0.08 0.13 0.08 0.09 0.1
21 0.41 0.22 0.23 0.34 0.27 0.14 0.2
22 0.13 0.13 0.14 0.11 0.08 0.13 0.1
23 0.34 0.20 0.13 0.26 0.23 0.17 0.2
24 0.12 0.15 0.20 0.17 0.09 0.10 0.3
25 0.10 0.13 0.14 0.11 0.10 0.10 0.1
26 0.33 0.22 0.14 0.17 0.17 0.15 0.2
27 0.28 0.17 0.30 0.38 0.32 0.20 0.1
28 0.31 0.24 0.25 0.19 0.39 0.34 0.1
29 0.14 0.11 0.12 0.09 0.09 0.12 0.1
31 0.39 0.21 0.28 0.09 0.16 0.32 0.3
_______________________
END ORBIT REPEATABILITY TABLE
The following table statistically summarizes this week's "engineering data", as
described in IGS Report No. 1528:
JPL ENGINEERING DATA SUMMARY TABLE GPS week 850 (1996 Apr 21 - Apr 27)
receiver/transmitter (dot means point positioned, * means fiducial site)
| days analyzed
| | rms clock noise (ns)
| | | average clock solution (us)
| | | | rms pseudorange (cm)
| | | | | (dot means pcode not analyzed)
| | | | | rms phase (mm)
| | | | | | average arc (hr)
| | | | | | |
|___ |__ |_______ |_______ |___ |___ |__
ALBH 1.0 3.49 -1.72 42.0 5.00 2.91
ALGO* 6.7 . . 45.8 4.35 2.91
ANKR 1.9 119. -2.20 69.0 4.00 2.71
AREQ .9 100. -2.10 41.0 5.00 2.51
AUCK 2.0 82.3 -2.15 38.5 4.52 2.95
BRMU 4.0 118. -2.19 38.5 5.26 3.02
BRUS .9 .247 -5.04 59.0 4.00 2.71
CHAT 5.0 98.9 -2.20 81.3 5.22 3.08
CRO1 6.0 196. -2.19 44.4 6.27 2.15
DAV1 1.9 7.35 269. 32.6 5.53 1.47
EISL 1.0 .797e+07 -.143e+05 40.0 6.00 2.57
FAIR* 7.0 .259 -2.44 39.5 4.74 2.17
FORT 4.0 .483e+04 -466. 50.1 6.49 3.67
GOL2* 7.0 .145 -1.55 45.9 4.60 3.12
GUAM 5.0 97.2 -2.18 55.5 8.23 2.63
HART* 1.6 30.4 -3.65 . 4.67 2.79
HKLO 3.0 .289e+06 507. 51.5 5.48 .907
IISC 4.8 73.0 -2.19 69.0 6.60 2.22
IRKT 7.0 .551 -2.30 59.7 5.00 2.87
JPLM 5.0 87.9 453. 29.0 4.00 3.05
KERG 6.0 120. -657. . 5.18 2.68
KIRU 6.0 32.5 -2.52 57.6 7.54 2.08
KIT3 6.9 147. -2.18 57.7 5.74 2.76
KOKB* 7.0 .185 -.236e+04 63.9 5.87 2.59
KOSG* 1.9 1.24 -.732 42.0 3.57 2.50
KWJ1 2.9 84.3 -2.18 55.1 7.05 1.90
LPGS 3.9 755. -2.15 50.5 5.77 2.25
MAC1 1.9 76.2 -2.12 30.0 4.56 2.07
MADR* 6.9 .367 19.7 . 4.61 2.51
MALI 6.9 278. 25.4 . 8.32 2.27
MAS1 5.9 22.2 -2.58 49.7 5.08 2.93
MCM4 7.0 83.3 -2.18 34.0 4.89 2.13
MDVO 2.9 .330 122. 69.7 6.00 2.68
MOIN 4.9 88.4 -2.18 65.5 7.49 1.89
NOTO 4.9 .126 -13.4 35.8 5.11 3.19
PAMA 7.0 147. -2.19 . 10.3 2.22
PERT 6.0 2.93 36.6 49.2 4.69 3.14
RCM5 3.0 87.2 -2.17 88.2 6.05 2.25
REYK 7.0 74.4 -2.19 59.2 6.16 2.06
SANT* 7.0 7.41 -5.93 . 5.45 2.38
STJO 5.0 647. -8.43 37.4 6.13 2.84
TAEJ .9 .285e+06 475. 58.0 5.00 3.49
THU1 6.0 70.3 -2.19 48.7 5.19 2.65
TID2* 6.0 .132 -2.14 41.0 5.18 3.31
TROM* 1.9 32.1 68.1 . 5.56 1.85
TSKB 4.0 5.94 -1.30 52.3 5.27 2.75
USUD 3.0 8.24 -1.10 37.3 4.70 2.86
VILL 3.0 3.24 -5.07 65.4 5.50 3.12
WLPS 1.0 115. -2.21 72.0 5.00 3.03
WSMN 1.0 .289e+06 500. 62.0 5.00 .588
WTZR* 7.0 .191 -1.74 61.3 4.63 2.48
YAR1* 6.0 2.55 5.88 . 4.19 2.47
YELL* 6.6 363. -2.73 50.1 5.44 1.93
PRN01 7.0 80.7 56.1 57.3 5.89 2.33
PRN02 7.0 80.5 -252. 54.7 5.59 2.48
PRN03 6.9 80.2 3.41 50.7 5.30 2.72
PRN04 7.0 82.7 20.3 50.1 6.00 2.27
PRN05 7.0 82.7 34.4 49.5 6.01 2.40
PRN06 5.0 79.6 6.08 48.1 6.00 2.48
PRN07 7.0 80.2 717. 55.1 5.89 2.19
PRN09 6.8 80.6 -21.5 56.4 5.63 2.13
PRN14 7.0 83.3 11.3 51.3 5.46 2.45
PRN15 7.0 3.36 292. 57.4 5.17 2.30
PRN16 7.0 81.6 6.32 50.7 7.32 2.47
PRN17 7.0 81.3 -115. 53.5 5.59 2.46
PRN18 6.0 82.7 -10.8 50.6 7.06 2.51
PRN19 6.6 81.6 459. 51.2 5.64 2.39
PRN20 7.0 80.5 12.9 55.2 5.88 2.41
PRN21 7.0 81.5 -22.3 55.5 5.44 2.58
PRN22 7.0 80.8 300. 51.4 5.60 2.25
PRN23 7.0 80.8 7.50 52.8 5.88 2.42
PRN24 7.0 81.6 -199. 55.3 6.13 2.52
PRN25 6.8 80.2 -3.90 51.5 5.89 2.35
PRN26 7.0 79.6 -187. 51.4 5.85 2.53
PRN27 6.5 82.9 24.4 53.0 6.14 2.23
PRN28 7.0 1.97 76.6 59.7 4.62 2.92
PRN29 7.0 80.2 6.93 46.2 5.44 2.44
PRN31 6.8 80.5 451. 54.2 5.44 2.60
_______________________
END ENGINEERING DATA SUMMARY 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
96 4 21 96 4 22 96 4 23 96 4 24 96 4 25 96 4 26 96 4 27
prn 3d rss (m)
1 4.7 3.7 3.8 4.4 4.2 4.3 3.5
2 2.6 2.7 2.7 2.4 4.0 3.0 3.3
3 10.6 13.2 13.8 13.4 8.3 7.1 9.7
4 4.4 4.1 5.5 5.8 5.6 5.6 4.4
5 4.3 4.2 4.6 4.2 4.4 3.9 3.2
6 7.6 6.8 7.7 6.5 7.7
7 5.0 5.8 5.9 6.6 7.6 4.9 5.2
9 5.1 4.6 6.0 7.1 8.2 9.2 7.8
14 4.5 4.3 4.3 4.1 4.1 3.6 3.0
15 4.1 4.3 5.3 4.6 4.5 4.8 5.0
16 7.3 21.1 27.4 3.8 17.5 32.3 23.5
17 5.4 4.7 5.9 5.8 6.1 6.5 6.1
18 68.7 8.0 6.8 5.8 4.6 4.3
19 3.2 3.4 3.3 3.9 5.0 6.2 5.9
20 2.7 3.5 3.8 3.3 3.2 3.7 3.1
21 2.8 3.7 6.2 6.6 5.5 5.1 2.5
22 3.8 4.1 4.2 4.4 4.4 4.6 4.8
23 1.9 2.3 2.5 2.0 2.0 1.8 2.5
24 5.5 7.5 7.3 6.2 5.4 5.4 5.2
25 5.4 5.2 4.9 4.6 4.8 5.5 5.7
26 4.6 4.5 4.2 4.1 4.5 4.2 4.1
27 3.7 7.4 4.4 6.3 7.5 6.3 6.1
28 3.9 3.3 3.7 3.6 2.8 2.7 2.9
29 5.5 5.2 4.8 5.0 4.8 4.4 4.7
31 2.7 2.8 3.0 3.1 3.3 3.0 3.1
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: albh algo ankr areq auck brmu brus chat cro1 dav1 eisl fair fort gol2 guam hart hklo iisc irkt jplm kerg kiru kit3 kokb kosg kwj1 lpgs mac1 madr mali mas1 mcm4 mdvo moin noto pama pert rcm5 reyk sant stjo taej thu1 tid2 trom tskb usud vill wlps wsmn wtzr yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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