[IGSREPORT-2328] Wk 0834 JPL Analysis Report
D
D
Tue Jan 16 13:28:41 PST 1996
******************************************************************************
IGS Electronic Report Tue Jan 16 13:28:41 PST 1996 Message Number 2328
******************************************************************************
Author: D C Jefferson
Subject: Wk 0834 JPL Analysis Report
******************************************************************************
JPL ANALYSIS REPORT GPS-WEEK 0834 (DAYS 365-6, DATES 1995 Dec 31 - Jan 06)
******************************************************************************
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/0834. These files have also been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl08347.sum This text file.
jpl08347.erp Earth rotation parameters for GPS week 834.
jpl08347.snx Ground station coordinates for GPS week 834, SINEX format.
jpl0834[0-6].sp3 GPS ephemerides for GPS week 834, sp3 format.
______________________________________________________________________________
Mean Orbit Repeatability (see table below): 20.5 cm
Beginning this week, we add a new step to our site-selection algorithm,
which is based on choosing 37 stations which give the "best" geographical
distribution. We begin by choosing a site which will be suitable as a
reference clock. To this we add a well-distributed number of stations,
currently eight, each of which uses an H-maser frequency reference. The
remaining sites are chosen such that the global distribution has small rms
isolation (subject to the constraint of including IGS fiducials).
Also beginning this week, we include data from a previously existing site,
GOL2, a secondary receiver operating at Goldstone (Barstow CA, USA). Due to
planned experiments, this site is forced into our orbit and clock solution each
day. The following nominal coordinates were assumed (same as GOLD):
X (m) Y (m) Z (m)
-2353614.1692 -4641385.3888 3676976.4736
Based on atypically high rms values of pseudorange post-fit residuals (on the
1.0 to 1.5 meter level), we have elected to exclude P-code data from MAS1 and
PAMA from our analyses as of day 002.
Please note that the orbit repeatability table column for day 006 only has one
decimal place of precision. This is because the analysis of the following day
is not complete as of this writing.
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 PRN12 not used on day 1995-365.
WARNING: PIE1 (not ALGO) used as reference clock on days 1996-001 and 002.
WARNING: Data from GOPE, LAMA, MATE, PIN1, TRAK, UPAD excluded day 002.
WARNING: Data from MATE, PAMA, PIN1, SEY1, UPAD excluded day 003.
WARNING: Data from CLAR, LONG, MATE, PAMA, TROM excluded day 004.
WARNING: Data from HERS, MATE, NYAL, VNDP excluded day 005.
WARNING: Data from TROM excluded day 006.
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 834 (1995 Dec 31 - Jan 06)
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
50082.50 -17593 18907 -441300 2133 5 5 12 12 37 12 24 -185 318
50083.50 -17727 19196 -443371 2009 5 5 11 11 37 12 25 -227 297
50084.50 -17856 19477 -445403 2055 5 5 11 11 37 10 25 -216 309
50085.50 -17940 19810 -447424 1986 5 6 11 11 37 11 25 -198 293
50086.50 -18057 20087 -449401 1969 9 8 11 11 37 6 25 -215 299
50087.50 -18179 20412 -451355 1938 5 5 11 11 37 12 25 -196 335
50088.50 -18327 20769 -453291 1934 5 5 11 11 37 11 25 -194 354
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 834:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 834 (1995 Dec 31 - Jan 06)
95 12 31 96 1 1 96 1 2 96 1 3 96 1 4 96 1 5 96 1 6
prn 3d rss (m)
1 0.39 0.49 0.33 0.45 0.47 0.57 0.4
2 0.14 0.22 0.21 0.11 0.16 0.13 0.2
4 0.15 0.12 0.17 0.20 0.20 0.24 0.3
5 0.33 0.26 0.12 0.10 0.10 0.17 0.1
6 0.53 0.92 0.24 0.19 0.13 0.10 0.2
7 0.15 0.09 0.09 0.22 0.21 0.10 0.1
9 0.26 0.16 0.10 0.09 0.23 0.23 0.2
12 0.1 0.15 0.15 0.11 0.27 0.3
14 0.11 0.16 0.17 0.15 0.12 0.21 0.2
15 0.24 0.30 0.21 0.16 0.35 0.23 0.2
16 0.13 0.14 0.17 0.13 0.11 0.15 0.2
17 0.31 0.33 0.25 0.12 0.15 0.20 0.1
18 0.17 0.22 0.20 0.19 0.15 0.23 0.2
19 0.08 0.14 0.05 0.11 0.12 0.08 0.1
20 0.31 0.23 0.20 0.20 0.21 0.23 0.1
21 0.37 0.36 0.29 0.22 0.30 0.30 0.2
22 0.18 0.25 0.28 0.17 0.16 0.17 0.1
23 0.54 0.51 0.24 0.10 0.14 0.23 0.3
24 0.12 0.15 0.16 0.23 0.26 0.27 0.1
25 0.24 0.43 0.16 0.19 0.29 0.33 0.3
26 0.28 0.23 0.15 0.18 0.28 0.24 0.1
27 0.12 0.10 0.13 0.15 0.18 0.11 0.0
28 0.25 0.25 0.18 0.13 0.17 0.13 0.1
29 0.18 0.22 0.19 0.22 0.10 0.18 0.1
31 0.20 0.15 0.21 0.17 0.20 0.15 0.1
_______________________
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 834 (1995 Dec 31 - Jan 06)
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 4.9 2.58 33.5 36.6 4.05 2.57
ALGO* 5.7 .681e-01 2.02 38.3 3.17 3.15
ANKR 2.8 92.7 .516 59.3 3.72 2.61
AREQ 6.9 83.9 .343 44.2 4.74 2.77
AUCK 3.0 78.4 -.192 40.0 3.69 2.57
BOR1 1.0 3.10 -.846 35.0 3.00 2.77
BRMU .9 95.6 -.535 40.0 5.00 3.06
BRUS 2.9 .175 2.99 62.6 4.10 2.82
CARR 1.0 78.8 -.298e-01 47.0 4.00 2.48
CAS1 .9 14.0 430. 63.0 5.00 1.46
CHAT 5.9 95.1 .485 85.5 5.18 2.66
CRO1 6.9 129. .342 41.6 5.47 2.27
FAI2 5.9 11.3 .570 45.2 3.85 2.31
FAIR* 6.9 .273 .271 . 4.00 2.11
GODE 2.0 .135 24.4 46.5 4.00 2.75
GOL2 4.9 .127 .397 43.1 3.82 3.29
GOLD* 5.7 .102 .328 . 3.07 2.38
GRAS 1.0 77.9 -.432e-02 33.0 5.00 2.79
GUAM 6.9 99.9 .339 51.9 7.89 2.41
HART* 6.9 23.6 -2.57 . 7.45 2.05
HARV 2.0 .777e+07 .117e+05 75.0 5.00 2.62
IISC 6.8 784. .345 66.9 5.00 1.98
IRKT 6.2 .965e+06 -.198e+04 48.7 4.13 2.78
KERG 6.9 203. -479. . 5.60 2.26
KIRU 3.0 3.64 12.2 54.0 7.68 2.22
KIT3 4.7 107. .596 57.2 4.23 2.81
KOK2 6.9 .152 -.158e+04 42.0 5.84 2.46
KOSG* 6.9 3.02 114. . 3.32 2.12
KOUR 1.0 4.47 -1.76 . 9.00 1.79
LPGS 1.2 .816e+05 3.69 56.7 5.00 2.61
MAC1 .9 .638e+04 -.244e+05 40.0 5.00 1.69
MADR* 6.3 .118 -.581 . 5.03 2.36
MAS1 1.7 .239e+05 -8.03 192. 6.00 2.14
MCM4 3.9 91.6 .245 47.0 5.00 1.46
MDO1 1.0 1.93 -.690 36.0 4.00 2.81
METS 4.5 .151 -2.86 34.0 3.00 2.08
NLIB 5.9 .109 -.600e-01 35.5 3.00 2.82
NOTO 6.9 314. -1.67 37.0 4.76 3.07
ONSA 2.0 .149 .685 38.6 3.00 2.39
PAMA 3.9 136. .703 118. 11.1 1.88
PERT 6.9 2.89 -1.98 68.3 4.63 1.68
PIE1 5.9 .155 -1.54 35.2 3.85 2.76
RCM5 .9 .733 .700 48.0 4.00 3.22
SANT* 6.9 .153 .698 . 5.00 2.67
SHAO 6.9 89.3 .345 133. 4.03 2.00
SNI1 1.0 75.3 -.541 56.0 5.00 2.88
STJO 5.8 3.38 7.55 38.6 4.19 2.85
THU1 6.9 71.5 .346 46.5 4.46 2.72
TID2 6.9 .133 1.16 45.0 5.36 2.72
TIDB* 5.8 .354 1.40 . 5.40 2.42
TROM* 4.9 5.85 33.2 . 4.42 1.51
TSKB 1.9 .850e+07 .155e+05 51.6 3.48 2.48
USUD 3.9 1.70 2.23 35.8 4.58 2.47
VILL 4.9 309. .374 58.0 4.63 2.98
WETT* 5.7 .156 2.48 . 4.97 2.23
YAR1* 4.9 2.37 .641 . 4.44 1.74
YELL* 4.8 .134 -.444 43.2 4.00 2.24
PRN01 6.9 81.6 563. 49.3 4.87 2.51
PRN02 6.7 81.9 -220. 53.3 4.73 2.44
PRN04 6.8 80.5 4.76 54.4 5.19 2.15
PRN05 6.6 82.7 18.0 60.7 4.94 2.58
PRN06 6.7 81.5 5.11 61.3 4.89 2.13
PRN07 6.9 78.9 714. 53.2 5.16 2.29
PRN09 6.9 81.3 -6.43 63.2 5.30 2.05
PRN12 5.9 .837 -120. 69.5 4.39 2.93
PRN14 6.9 82.5 12.4 55.2 4.73 2.39
PRN15 6.8 3.78 258. 56.3 4.88 2.23
PRN16 6.8 83.6 -160. 57.7 4.74 2.20
PRN17 6.9 79.4 -102. 56.9 4.73 2.42
PRN18 6.9 79.3 -5.13 53.1 4.73 2.58
PRN19 6.9 79.2 279. 47.8 4.44 2.59
PRN20 6.4 78.7 77.8 58.1 4.74 2.03
PRN21 6.9 78.6 -11.2 51.3 5.16 2.57
PRN22 6.5 81.4 275. 50.5 5.03 2.21
PRN23 6.9 79.9 5.79 52.5 5.16 2.38
PRN24 6.8 83.6 227. 60.5 5.46 1.97
PRN25 6.7 82.4 .758e-01 52.5 5.03 2.15
PRN26 6.9 81.6 -132. 62.2 5.00 2.28
PRN27 6.9 79.9 14.7 50.6 4.46 2.41
PRN28 6.9 2.37 57.6 81.3 4.31 2.84
PRN29 6.9 81.5 5.26 48.4 4.45 2.51
PRN31 6.9 81.9 197. 50.1 5.00 2.90
_______________________
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
95 12 31 96 1 1 96 1 2 96 1 3 96 1 4 96 1 5 96 1 6
prn 3d rss (m)
1 4.2 6.7 6.3 6.4 6.8 4.5 4.6
2 5.7 6.4 6.6 6.2 5.8 7.2 7.6
4 4.8 5.5 4.7 3.8 4.1 3.1 3.5
5 6.8 6.8 8.4 10.3 8.8 12.0 10.3
6 4.5 4.8 6.1 6.3 5.6 5.7 5.8
7 4.5 5.7 4.6 4.1 7.0 5.8 4.9
9 5.9 6.4 7.2 7.3 6.4 5.8 5.4
12 3.7 2.5 2.9 4.5 4.2 21.2
14 4.3 4.5 4.1 4.8 5.0 5.1 5.0
15 5.7 5.8 6.0 6.5 6.7 5.5 5.7
16 7.3 3.8 4.3 4.3 5.1 5.7 4.4
17 7.8 6.7 7.0 5.1 7.2 8.1 5.7
18 5.4 5.2 6.7 4.7 3.8 6.2 4.9
19 10.8 6.9 7.3 8.4 5.9 6.6 9.2
20 11.6 8.0 9.4 9.7 7.9 7.0 6.8
21 4.5 5.4 4.3 3.0 4.4 3.9 3.8
22 8.1 9.4 9.9 9.4 7.1 7.0 6.9
23 23.4 17.0 10.7 9.9 13.0 12.3 7.7
24 6.5 6.9 5.6 4.2 3.9 4.0 4.5
25 7.7 7.2 7.8 7.2 8.0 8.8 9.3
26 6.0 6.5 4.7 5.0 4.9 4.9 5.4
27 5.5 5.7 5.7 5.3 4.8 5.0 4.6
28 5.5 3.4 2.7 3.6 3.2 3.4 3.5
29 3.2 6.0 4.6 3.6 6.4 5.2 5.2
31 4.4 3.7 3.3 3.4 4.1 3.3 3.4
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
[Mailed From: djeff at cobra.jpl.nasa.gov]
More information about the IGSREPORT
mailing list