[IGSREPORT-4289] Wk 0928 JPL Analysis Report
D
D
Mon Nov 3 13:46:53 PST 1997
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IGS Electronic Report Mon Nov 3 13:46:53 PST 1997 Message Number 4289
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Author: D C Jefferson
Subject: Wk 0928 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0928 (DAYS 292-298, DATES 1997 Oct 19 - Oct 25)
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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 (128.149.70.41),
directory pub/jpligsac/0928. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09287.sum This text file.
jpl09287.erp Earth rotation parameters for GPS week 928.
jpl09287.snx Ground station coordinates for GPS week 928, SINEX format.
jpl0928[0-6].sp3 GPS ephemerides for GPS week 928, sp3 format.
jpl0928[0-6].tro Ground station troposphere estimates for GPS week 928.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 10.0 cm
According to IGSMail Message No. 1709, the receiver and antenna at MALI
were changed on day 296. We have deliberately excluded data from this
site on this and the previous day (295).
Data from PRN13 exceeded our initial orbit convergence criteria on days
292-294. Additionally, data from this satellite were mismodeled on days
297 and 298. PRN13 was included only on days 295 and 296, and its data
were heavily deweighted on these days.
Similarly, data from PRN14 were mismodeled on days 297 and 298. We have
chosen to exclude this satellite on these days.
A large clock discontinuity (reset) of about 88 microseconds was detected for
PRN21 at approximately 13:20 on day 294.
Beginning this week we add a new candidate station. As with other sites,
this station is given the opportunity to participate in the orbit and clock
solution as the global site distribution varies. The following nominal
coordinates were assumed:
X (m) Y (m) Z (m)
ZECK (Zelenchukskaya, Russia) 3451174.9502 3060335.4004 4391955.6602
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: PIE1 (not ALGO) used as reference clock days 295-297.
WARNING: MKEA (not ALGO) used as reference clock day 298.
WARNING: Data from PRN13 deweighted days 295 and 296; excluded days 292-294, 297, and 298.
WARNING: Data from PRN14 excluded days 297 and 298.
WARNING: Data from SNI1 excluded day 292.
WARNING: Data from MATH excluded day 293.
WARNING: Data from BRMU, HOLP, SNI1 excluded day 294.
WARNING: Data from JOZE, MALI, WES2 excluded day 295.
WARNING: Data from HOLC, LAMA, MALI, POTM, SANT excluded day 296.
WARNING: Data from BRMU, CASA, HOLC excluded day 297.
WARNING: Data from CASA excluded day 298.
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 928 (1997 Oct 19 - Oct 25)
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
50740.50 22637 32905 349574 2146 3 3 10 10 37 11 25 77 -321
50741.50 22700 32625 347438 2125 3 3 10 10 37 11 25 131 -329
50742.50 22789 32373 345328 2095 3 3 10 10 37 11 25 104 -330
50743.50 22806 32153 343274 2014 3 3 10 10 37 11 26 6 -309
50744.50 22788 31880 341253 2027 3 3 10 10 37 10 26 9 -305
50745.50 22742 31628 339206 2068 4 4 10 10 37 10 24 45 -296
50746.50 22676 31319 337144 2056 3 4 10 10 37 10 24 4 -297
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 928:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 928 (1997 Oct 19 - Oct 25)
97 10 19 97 10 20 97 10 21 97 10 22 97 10 23 97 10 24 97 10 25
prn 3d rss (cm)
1 25 11 14 24 32 21 8
2 10 13 13 5 7 8 10
3 26 20 30 24 24 44 25
4 8 13 24 15 5 10 10
5 4 5 4 5 5 7 6
6 6 3 5 7 9 9 8
7 5 10 10 7 12 7 7
9 8 29 9 10 8 8 9
10 5 7 13 10 7 11 9
13 49 35
14 26 14 24 18 26
15 16 14 10 12 16 7 9
16 11 9 11 10 16 10 23
17 8 9 26 23 13 8 10
18 21 10 7 11 5 6 9
19 7 10 9 8 4 12 14
21 12 23 22 23 17 22 11
22 11 11 9 11 7 12 11
23 17 21 25 16 22 23 22
24 6 6 7 5 6 8 8
25 11 16 13 22 22 17 10
26 11 4 10 10 7 4 7
27 6 7 10 6 6 10 8
29 10 10 11 12 14 6 10
30 5 6 6 8 7 7 5
31 12 11 15 18 13 12 14
_______________________
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 928 (1997 Oct 19 - Oct 25)
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* 7.0 404. .782 42.8 3.62 3.09
AREQ 2.0 102. -.635 52.5 4.00 1.83
ASC1 6.4 249. -.993 65.3 4.89 1.61
BAHR 6.7 1.26 741. 50.2 5.79 3.12
CAS1 6.9 .320e+05 104. 53.3 6.32 1.43
CHAT 7.0 109. -.997 78.9 5.16 2.52
COCO 6.9 109. -.313e+04 43.9 4.91 3.00
CRO1 6.9 161. -1.01 47.4 5.05 2.11
DGAR 6.7 373. -.951 76.2 6.15 1.64
FAIR* 6.9 14.8 -.964 34.6 4.29 2.05
FLIN 1.0 92.8 -1.71 55.0 4.00 2.83
FORT 7.0 13.6 -.837 69.6 6.02 1.61
GALA 2.9 101. -1.81 76.6 5.00 1.74
GOL2* 7.0 .108 -.359 48.6 4.15 1.97
GUAM 7.0 126. -1.01 57.2 6.75 2.34
IISC 6.8 92.6 -.995 73.4 5.87 1.98
IRKT 5.9 .150 -.947 52.1 4.86 2.42
KELY .5 89.1 -.625 . 6.00 1.30
KERG 4.8 623. 805. . 5.61 2.38
KIRU 3.0 6.23 .325 48.0 6.00 2.10
KIT3 1.0 117. -.654 65.0 4.00 2.81
KOKB* 6.5 135. -.842 85.6 5.15 2.01
KOSG* 7.0 5.12 -28.4 44.5 3.91 2.56
KWJ1 7.0 107. -1.00 66.8 6.30 1.79
LHAS 3.0 95.6 -.303 49.6 5.00 2.60
LPGS 1.9 353. -.618 59.6 5.00 1.84
MAC1 6.9 80.4 -.994 37.1 3.89 2.05
MAD2 1.9 403. -.385 88.0 6.53 1.83
MADR* 7.0 .154 -1.37 . 6.21 2.29
MALI 4.5 .170e+04 -46.5 84.5 7.50 1.87
MAS1 4.0 73.1 -1.22 48.3 5.00 2.27
MCM4 7.0 103. -.997 41.2 5.00 1.34
MDVO 2.0 .307 323. 71.5 7.00 2.11
MKEA 4.9 13.2 -1.57 45.9 5.00 2.69
NICO 2.9 75.7 -1.08 30.7 5.10 2.43
NOTO 1.0 .126 -3.63 44.0 4.00 2.68
NRC1 1.0 .631e-01 .297 53.0 3.00 3.10
ONSA 1.0 .946e-01 -.423 48.0 4.00 2.28
PERT 4.0 3.62 -3.09 52.0 4.27 2.81
PIE1 2.8 . . 41.4 4.00 2.31
POL2 1.9 83.7 -.113 41.5 3.00 2.57
REYK 5.0 79.1 -.908 57.6 5.81 1.82
SANT* 4.7 394. -1.27 45.8 4.61 1.45
SELE 3.0 119. -1.82 35.0 3.70 3.18
SFER 1.0 .852 10.1 66.0 6.00 2.87
SHAO 2.6 104. -1.32 135. 4.41 2.27
STJO 4.0 2.24 -.650e-02 42.7 4.00 3.05
TAHI 3.6 128. -.659 77.9 6.00 2.43
THU1 2.0 88.5 -1.75 47.0 5.52 2.33
TID2* 7.0 .117 -1.06 37.7 5.00 2.71
TOUL 2.8 .451 -1.47 52.7 5.05 2.82
USUD 4.0 20.3 3.41 43.3 5.00 2.60
WES2 1.0 .400 -.442 53.0 4.00 2.75
WTZR* 7.0 30.6 -1.20 62.7 4.31 2.68
WUHN 3.9 9.13 -121. 54.6 5.27 2.70
YAR1* 5.9 91.5 -1.23 39.5 4.88 2.11
YELL* 7.0 1.00 -2.73 40.0 4.27 1.69
PRN01 6.9 81.7 30.0 55.6 5.00 1.89
PRN02 7.0 84.4 -416. 59.1 5.00 2.28
PRN03 7.0 80.6 63.0 56.5 5.16 2.03
PRN04 6.8 80.3 52.1 56.6 5.30 2.01
PRN05 7.0 80.9 118. 55.1 5.16 2.39
PRN06 7.0 82.1 -1.29 59.2 5.00 2.35
PRN07 7.0 80.1 757. 52.5 5.00 2.25
PRN09 6.6 82.5 -16.5 58.4 5.15 2.03
PRN10 7.0 81.9 13.2 58.8 5.16 1.91
PRN14 5.0 81.8 21.9 54.0 5.00 2.35
PRN15 6.6 3.52 480. 62.9 5.16 2.00
PRN16 7.0 81.2 31.8 57.3 5.00 2.58
PRN17 6.7 81.2 -164. 61.4 5.16 1.95
PRN18 7.0 81.8 5.12 53.3 5.00 2.39
PRN19 6.8 80.3 275. 55.0 5.00 2.29
PRN21 6.8 .715e+04 38.6 56.8 5.29 2.01
PRN22 7.0 81.7 23.4 55.1 5.00 2.16
PRN23 7.0 80.5 4.08 61.1 5.16 2.35
PRN24 6.7 77.7 781. 58.9 5.15 1.96
PRN25 6.6 82.3 -7.28 51.9 5.15 2.00
PRN26 7.0 80.2 -31.4 57.8 5.00 2.24
PRN27 6.8 81.8 3.93 56.6 5.00 2.47
PRN29 7.0 80.1 241. 50.2 5.00 2.08
PRN30 7.0 83.1 -6.55 53.4 5.15 2.35
PRN31 6.9 80.4 -1.31 57.4 5.00 2.03
_______________________
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 10 19 97 10 20 97 10 21 97 10 22 97 10 23 97 10 24 97 10 25
prn 3d rss (cm)
1 601 336 522 267 359 263 349
2 408 321 254 354 342 509 422
3 196 187 284 350 184 290 368
4 596 248 385 387 272 285 293
5 396 470 477 420 278 354 515
6 386 747 1411 892 505 575 582
7 257 354 412 316 269 303 293
9 332 397 346 326 562 299 282
10 383 388 741 476 314 432 569
13 39541 41999
14 871 550 796 508 492
15 156 226 246 474 269 384 303
16 1044 263 313 305 273 410 525
17 180 420 400 308 274 283 574
18 371 555 459 310 555 666 522
19 338 408 333 513 538 378 906
21 245 259 296 453 714 187 535
22 397 447 449 497 601 741 568
23 292 331 546 290 568 999 534
24 594 407 442 520 753 468 582
25 468 396 385 529 504 928 446
26 390 263 325 192 238 249 313
27 488 417 748 507 917 559 610
29 460 232 286 543 429 153 813
30 232 256 353 379 187 487 412
31 290 286 411 307 260 342 239
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo areq asc1 bahr cas1 chat coco cro1 dgar fair flin fort gala gol2 guam iisc irkt kely kerg kiru kit3 kokb kosg kwj1 lhas lpgs mac1 mad2 madr mali mas1 mcm4 mdvo mkea nico noto nrc1 onsa pert pie1 pol2 reyk sant sele sfer shao stjo tahi thu1 tid2 toul usud wes2 wtzr wuhn yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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