[IGSREPORT-4471] Wk 0937 JPL Analysis Report
D
D
Tue Jan 6 11:24:38 PST 1998
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IGS Electronic Report Tue Jan 6 11:24:38 PST 1998 Message Number 4471
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Author: D C Jefferson
Subject: Wk 0937 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0937 (DAYS 355-361, DATES 1997 Dec 21 - Dec 27)
******************************************************************************
Submitted by the JPL IGS/FLINN Analysis Team:
D C Jefferson, Y E Bar-Sever, M B Heflin, M M Watkins, F H Webb, J F Zumberge
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 (137.78.60.30),
directory pub/jpligsac/0937. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09377.sum This text file.
jpl09377.erp Earth rotation parameters for GPS week 937.
jpl09377.snx Ground station coordinates for GPS week 937, SINEX format.
jpl0937[0-6].sp3 GPS ephemerides for GPS week 937, sp3 format.
jpl0937[0-6].tro Ground station troposphere estimates for GPS week 937.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 9.0 cm
NOTICE
-------
Please note that the IP address of the anonymous FTP server where the above
products are kept has changed. The new address is 137.78.60.30. The old
address (128.149.70.41) is still operational, but will be disabled at some
point in the indefinite future. Users can and should use the new IP address
as soon as possible. The name of the server, sideshow.jpl.nasa.gov, has not
changed.
GENERAL
-------
Data from PRN02 and PRN19 were mismodeled on days 355 and 356 respectively.
Data from PRN08 were similarly mismodeled the entire week. These satellites
have been excluded from the corresponding days' analyses accordingly.
We continue to deweight data from PRN08. Also, data from PRN13 were mismodeled
on days 355 and 356, and we have elected to exclude this satellite from all
analyses this week.
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: TID2 (not NRC1) used as reference clock day 357.
WARNING: USNO (not NRC1) used as reference clock days 358 and 359.
WARNING: Data from PRN02 excluded day 355.
WARNING: Data from PRN08, PRN13 excluded the entire GPS week 937.
WARNING: Data from PRN19 excluded day 356.
WARNING: Data from FORT, SANT excluded day 355.
WARNING: Data from FORT, KOUR, TSKB excluded day 356.
WARNING: Data from RCM6, TSKB excluded day 357.
WARNING: Data from KOUR, RCM6, TSKB excluded day 358.
WARNING: Data from KOUR excluded day 359.
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 937 (1997 Dec 21 - Dec 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
50803.50 13089 18907 228704 1687 3 3 8 8 37 10 24 -261 -201
50804.50 12825 18760 226969 1783 3 3 8 8 37 10 24 -240 -196
50805.50 12533 18610 225209 1738 3 3 8 8 37 9 25 -285 -201
50806.50 12206 18422 223498 1684 3 3 8 8 37 10 25 -266 -242
50807.50 11937 18262 221788 1735 3 3 8 8 37 10 25 -298 -186
50808.50 11669 18077 220146 1549 3 3 8 8 37 10 25 -229 -209
50809.50 11430 17926 218588 1567 3 3 8 8 37 10 25 -234 -193
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 937:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 937 (1997 Dec 21 - Dec 27)
97 12 21 97 12 22 97 12 23 97 12 24 97 12 25 97 12 26 97 12 27
prn 3d rss (cm)
1 7 8 4 5 5 6 8
2 14 10 9 9 9 5
3 10 14 11 11 6 10 19
4 11 5 9 9 11 10 7
5 5 7 6 7 8 11 6
6 10 11 7 8 8 9 8
7 6 7 7 8 9 8 9
9 5 4 7 7 9 8 9
10 8 8 15 8 8 9 10
14 11 12 12 13 17 13 15
15 9 5 6 9 8 7 7
16 8 9 11 16 14 8 9
17 8 8 4 7 7 8 8
18 9 9 13 17 9 14 22
19 8 11 12 13 7 10
21 20 7 10 6 8 12 9
22 17 13 9 9 14 14 24
23 8 10 10 10 10 15 11
24 5 11 8 17 15 13 14
25 10 10 12 10 8 9 15
26 7 11 13 12 6 8 11
27 6 7 14 8 7 6 7
29 5 5 10 8 9 10 8
30 5 6 5 7 8 9 6
31 7 8 8 11 9 12 11
_______________________
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 937 (1997 Dec 21 - Dec 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)
| | | | | | |
|___ |__ |_______ |_______ |___ |___ |__
ALGO* 7.0 .948e-01 3.55 46.3 4.00 3.21
ANKR .9 187. -.268 57.0 4.00 3.01
AREQ 7.0 98.3 -.199e-01 47.8 4.00 2.64
ASC1 6.9 570. -.233e-01 74.3 4.59 1.61
BAHR 7.0 .596 234. 42.7 5.03 3.62
BRAZ 3.0 111. .308e-01 62.3 6.00 1.83
CAS1 5.7 23.5 498. 37.4 5.55 1.55
CHAT 7.0 111. -.226e-01 75.6 5.31 2.97
COCO 7.0 102. -.214e+04 42.2 4.87 3.25
CRO1 5.8 180. .240e-01 43.5 5.52 2.03
DAV1 .8 93.5 .108 39.0 4.00 1.46
DGAR 6.9 123. -.217e-01 72.5 6.17 1.51
EISL 6.9 130. -.127e-01 50.0 5.45 3.03
FAIR* 7.0 .888e-01 -.210 38.6 4.00 2.50
FLIN 2.0 80.6 .128 38.5 3.00 2.69
FORT 2.9 .150 -.112 66.1 6.36 1.54
GALA 1.0 75.0 .111 54.0 6.00 1.83
GOL2* 6.7 918. .950 68.9 4.17 1.87
HARK 5.7 350. 1.33 58.5 5.35 2.70
IISC 7.0 85.9 -.188e-01 68.0 5.16 2.52
IRKT 4.8 .153 -.426 47.5 5.00 2.49
KERG 6.6 .370e+04 959. . 5.30 2.77
KIRU 2.0 1.97 3.46 50.0 6.00 2.37
KIT3 2.8 114. -.709e-01 56.3 4.67 3.12
KOKB* 7.0 .129 .101 54.9 5.60 2.56
KOSG* 5.8 8.75 -1.36 40.5 4.76 2.49
KOUR .8 410. 1.86 . 3.00 1.91
KWJ1 6.9 126. -.277e-01 54.9 6.00 1.92
LPGS 3.8 449. -.770e-01 68.0 4.75 3.29
MAC1 5.7 90.9 -.466e-01 47.3 4.00 2.75
MAD2* 6.9 281. -.769 66.1 5.77 2.04
MCM4 6.9 103. -.169e-01 63.9 5.00 1.43
MDVO 1.9 .200 212. 76.5 6.00 1.98
MKEA 5.0 68.0 -.444e-01 43.2 4.81 2.56
MOIN 5.8 92.7 -.279e-01 62.7 5.84 1.80
NRC1 3.9 . . 53.7 3.55 3.38
OHIG 3.7 .134e+07 20.2 51.5 4.00 1.11
PERT 5.0 2.52 -10.3 52.0 4.62 2.84
POL2 .9 83.8 .946e-01 58.0 4.00 2.71
REYK 5.0 77.7 .278e-02 59.0 6.20 1.99
SELE .9 116. .127 34.0 5.00 3.00
STJO 1.0 1.61 .363 40.0 4.00 2.73
TAHI 4.8 141. -.686e-01 86.5 6.62 2.54
THU1 7.0 136. -.152e-01 53.0 5.00 2.59
TID2* 7.0 13.3 .338e-01 41.0 5.73 2.90
USNO 2.0 . . 50.0 5.00 2.91
USUD 7.0 .170e+04 4.51 41.5 4.00 3.10
WES2 1.0 .110 2.21 58.0 4.00 2.91
WTZR* 7.0 .263 1.01 60.5 4.60 2.75
WUHN 5.9 7.85 -386. 44.5 4.53 2.69
XIAN 1.0 90.2 .122 54.0 4.00 3.29
YAR1* 7.0 94.7 -.116e-01 40.5 4.00 2.31
YELL* 7.0 63.7 -1.65 39.2 4.00 2.33
PRN01 7.0 82.7 35.5 55.2 5.00 2.12
PRN02 6.0 80.0 -437. 56.7 5.00 2.26
PRN03 7.0 83.9 83.0 55.2 5.00 2.46
PRN04 6.9 81.0 2.57 51.3 5.00 2.14
PRN05 7.0 79.3 127. 50.9 5.00 2.61
PRN06 7.0 81.3 -.118 53.3 5.00 2.36
PRN07 7.0 80.5 764. 56.2 5.00 2.45
PRN09 7.0 81.5 -23.3 52.2 5.00 2.44
PRN10 6.8 82.0 16.6 56.8 5.03 2.21
PRN14 6.7 79.9 25.0 53.8 5.00 2.23
PRN15 7.0 2.64 504. 55.3 5.00 2.52
PRN16 6.8 81.5 41.8 60.1 5.15 2.19
PRN17 7.0 80.0 -169. 56.2 5.00 2.16
PRN18 7.0 80.2 8.94 55.0 5.16 2.45
PRN19 6.0 78.6 344. 56.5 5.00 2.21
PRN21 6.6 82.9 12.9 56.5 5.63 2.21
PRN22 6.8 83.8 37.6 55.4 5.00 2.32
PRN23 6.6 81.2 7.52 55.9 5.46 2.21
PRN24 7.0 80.6 771. 55.0 5.47 2.34
PRN25 7.0 79.6 -6.73 52.5 5.00 2.17
PRN26 7.0 81.2 -60.1 52.6 5.00 2.29
PRN27 7.0 80.2 12.4 53.2 4.86 2.64
PRN29 6.9 82.8 29.4 55.9 5.00 2.54
PRN30 7.0 81.7 -16.9 53.6 5.00 2.54
PRN31 7.0 79.5 .541e-01 54.5 5.00 2.46
_______________________
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
97 12 21 97 12 22 97 12 23 97 12 24 97 12 25 97 12 26 97 12 27
prn 3d rss (cm)
1 435 326 244 182 181 347 516
2 159 459 439 199 221 327
3 327 334 454 357 360 249 243
4 433 408 660 562 356 394 486
5 346 439 352 334 325 430 329
6 540 557 645 628 654 800 759
7 292 304 296 434 244 194 238
9 267 238 395 328 210 415 491
10 498 217 660 846 433 376 391
14 465 679 703 617 755 2048 968
15 195 242 322 334 518 596 479
16 1422 541 480 520 692 1487 285
17 541 867 245 554 822 374 578
18 223 122 226 432 294 334 382
19 1372 548 325 380 246 336
21 154 173 381 689 288 288 312
22 421 661 579 622 422 484 401
23 635 359 251 397 571 832 652
24 258 181 178 168 620 1877 2383
25 279 352 483 184 318 176 320
26 299 392 424 444 254 301 387
27 175 224 229 418 368 368 275
29 195 226 281 476 754 198 193
30 160 205 289 592 204 303 363
31 224 246 267 385 268 237 328
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo ankr areq asc1 bahr braz cas1 chat coco cro1 dav1 dgar eisl fair flin fort gala gol2 hark iisc irkt kerg kiru kit3 kokb kosg kour kwj1 lpgs mac1 mad2 mcm4 mdvo mkea moin nrc1 ohig pert pol2 reyk sele stjo tahi thu1 tid2 usno usud wes2 wtzr wuhn xian yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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