[IGSREPORT-4888] Wk 0956 JPL Analysis Report
D
D
Thu May 14 17:15:16 PDT 1998
******************************************************************************
IGS Electronic Report Thu May 14 17:15:16 PDT 1998 Message Number 4888
******************************************************************************
Author: D C Jefferson
Subject: Wk 0956 JPL Analysis Report
******************************************************************************
JPL ANALYSIS REPORT GPS-WEEK 0956 (DAYS 123-129, DATES 1998 May 03 - May 09)
******************************************************************************
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/0956. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09567.sum This text file.
jpl09567.erp Earth rotation parameters for GPS week 956.
jpl09567.snx Ground station coordinates for GPS week 956, SINEX format.
jpl0956[0-6].sp3 GPS ephemerides for GPS week 956, sp3 format.
jpl0956[0-6].tro Ground station troposphere estimates for GPS week 956.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 8.0 cm
STRATEGY UPDATE
---------------
Beginning day 126, we have relaxed the apriori constraint on X and Y pole
rates from about 18 to 50 10**-5"/d.
GENERAL
-------
According to the file nanu1998.mes obtained from the IGS CBIS, PRN13 was
unusable days 122 through 128. Data from this satellite were mismodeled
on days 127 and 128, and have been excluded from the analyses of these days
only.
A large clock discontinuity (reset) of about 118 microseconds was detected
for PRN03 at approximately 12:45 on day 126.
Please note that due to local computer maintenance, this report is being
submitted prior to the availability of the solution for day 130 (May 10;
week 957, day 0). Hence, the orbit repeatabilities presented for day 129
in the overlap table are indicative of comparisons with day 128 only.
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: FAIR (not USNO) used as reference clock day 123.
WARNING: PIE1 (not USNO) used as reference clock days 125 and 126.
WARNING: Data from PRN13 excluded days 127 and 128.
WARNING: Data from LHAS excluded day 123.
WARNING: Data from BAHR, DAV1, KSTU, LHAS, TROM excluded day 124.
WARNING: Data from BILL, DAV1, KELY, LHAS, PIN1, TROM excluded day 125.
WARNING: Data from COCO, SANT excluded day 126.
WARNING: Data from NYA1, NYAL, SUTH, TROM excluded day 127.
WARNING: Data from MAD2, NYAL excluded day 128.
WARNING: Data from KSTU, POTS excluded day 129.
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 956 (1998 May 03 - May 09)
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
50936.50 -11353 33316 -33690 1976 2 3 9 9 37 18 27 -17 196
50937.50 -11378 33522 -35611 1867 2 3 9 9 37 22 27 1 168
50938.50 -11401 33757 -37462 1835 2 3 9 9 37 22 27 -39 240
50939.50 -11418 34001 -39322 1884 2 2 8 8 37 21 27 19 188
50940.50 -11420 34215 -41205 1883 2 3 9 9 37 24 26 0 176
50941.50 -11415 34436 -43063 1832 3 3 9 9 37 24 26 -8 131
50942.50 -11387 34634 -44915 1872 2 2 8 8 37 23 27 41 161
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 956:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 956 (1998 May 03 - May 09)
98 5 3 98 5 4 98 5 5 98 5 6 98 5 7 98 5 8 98 5 9
prn 3d rss (cm)
1 16 4 5 15 6 9 5
2 6 5 5 5 6 10 6
3 4 5 6 5 13 7 5
4 7 7 5 13 10 9 4
5 9 10 9 7 5 10 6
6 10 30 18 7 8 5 11
7 18 8 9 8 5 13 12
8 10 15 10 5 7 6 6
9 10 9 10 15 7 8 7
10 8 12 6 9 11 5 3
13 8 8 4 8
14 24 11 9 9 6 10 8
15 14 12 12 10 6 8 6
16 11 9 7 5 8 9 10
17 13 9 4 5 9 9 4
18 11 5 6 9 8 9 8
19 15 5 11 11 4 6 4
21 24 5 3 8 7 10 4
22 4 4 9 6 7 4 4
23 16 23 17 13 11 16 4
24 4 5 8 12 9 10 13
25 5 6 5 5 7 6 6
26 14 21 9 9 8 6 4
27 9 4 4 7 7 8 3
29 9 11 9 5 9 8 4
30 8 18 6 12 6 6 4
31 17 8 8 13 9 10 7
_______________________
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 956 (1998 May 03 - May 09)
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 .183 .456 61.4 4.59 2.49
AREQ* 1.0 93.8 -.203 51.0 4.00 2.27
ASC1 6.4 264. -.184 77.9 5.22 1.39
AUCK 5.9 86.2 -.184 41.8 4.69 2.83
BAHR 2.0 .535 130. 46.5 4.00 3.14
BARB 1.7 103. -.288 34.0 7.51 3.34
BRUS 1.0 .778 8.11 61.0 4.00 3.04
CAS1 5.7 .811e+07 -.151e+05 36.3 5.84 1.19
CASA 2.0 38.8 10.5 45.5 6.00 2.58
CHAT 1.0 104. -.240 81.0 6.00 2.89
COCO 4.9 110. -.203e+05 46.0 6.49 2.89
CRO1 5.0 500. -.169 61.3 5.28 2.00
DAV1* 2.8 125. -.203 . 5.00 1.34
DGAR 6.7 852. -.277 73.0 6.21 1.72
DRAO 1.0 .167 -.197 38.0 5.00 3.06
EISL 6.6 145. -.202 60.1 5.00 2.88
FAIR* 6.9 5.28 -.227 60.1 5.01 1.81
FORT* 6.9 .902e+04 -27.7 80.9 6.45 1.67
GALA 3.8 141. -.169 76.5 6.26 1.53
GOL2* 7.0 .311 .964 55.2 4.91 2.19
GUAM* 7.0 128. -.206 62.6 6.45 2.37
HARK* 4.9 993. -4.71 54.6 4.23 2.63
HRAO 3.0 43.1 -1.43 39.7 3.70 2.58
IRKT* 4.8 .304 .130 58.8 5.00 2.68
KELY 2.9 105. -.214 . 5.00 1.42
KERG* 4.6 .390e+04 981. . 5.21 2.31
KIT3* 6.8 132. -.188 75.5 4.46 2.17
KOKB* 7.0 .299 -.523e-01 76.5 5.00 2.46
KWJ1* 7.0 139. -.193 79.9 6.15 1.91
LHAS* 2.0 117. -.228 . 5.00 2.63
LPGS .9 192. -.150 51.0 5.00 3.00
MAC1* 5.8 95.9 -.181 36.9 4.50 1.96
MAD2* 1.6 464. 1.56 66.4 6.38 1.79
MAG0 2.0 .289e+06 485. 34.0 5.00 2.31
MALI* 5.5 .701e+05 -891. 91.5 7.00 1.86
MAS1* 3.8 312. .439e-01 58.0 4.00 2.44
MATE* 3.0 .139 -2.06 45.3 5.09 3.02
MCM4 3.9 105. -.163 36.1 4.80 1.16
MDVO 1.8 .398 502. 73.5 6.52 2.18
MEDI .9 .142 -16.7 34.0 3.00 3.08
MKEA 3.0 .140 -.175 60.1 4.38 2.76
NOTO .8 .333 -2.44 34.0 4.00 3.16
NOUM 1.0 .289e+06 501. 67.0 6.00 2.02
NRC1 1.0 .425e-01 -.335 64.0 4.00 3.25
NTUS .7 739. -.950e-01 65.0 7.00 1.48
NYA1 5.8 46.6 -.289 41.3 5.33 1.58
OHIG* 4.4 .155e+04 -.125e-01 64.0 5.00 1.37
ONSA* 7.0 .211 -.102 42.3 4.00 2.26
PETR 3.0 91.5 -.152 52.1 5.00 2.42
PIE1* 2.0 . . 57.6 4.54 2.79
SANT* 5.4 634. -.665 47.7 5.00 1.22
SUTH 2.0 103. -.228 37.3 4.00 2.39
TID2* 7.0 .194 6.38 38.8 5.44 2.55
TSKB* 7.0 1.40 -2.27 50.3 4.89 3.01
USNO 4.3 . . 56.9 5.53 2.74
USUD 3.0 .542 .943 46.4 5.36 2.77
WTZR* 6.1 .247 1.12 63.5 4.17 2.73
WUHN 4.9 9.31 -86.4 52.4 5.22 2.45
YAKA 2.0 108. -.227 64.0 5.00 2.39
YAR1* 7.0 85.4 -.194 38.6 4.16 2.26
YELL* 7.0 .221 -.227 46.9 5.14 1.40
ZECK 2.0 72.9 -.217 46.0 5.08 2.61
PRN01 7.0 82.9 46.4 54.3 5.15 2.05
PRN02 7.0 81.8 -484. 61.0 5.00 2.18
PRN03 6.8 .865e+04 74.7 56.7 5.16 2.27
PRN04 6.6 81.0 25.1 56.9 5.16 1.88
PRN05 6.9 81.3 148. 59.4 5.00 2.07
PRN06 7.0 82.2 -.422 60.2 5.45 1.97
PRN07 6.9 93.8 777. 56.9 5.00 1.97
PRN08 7.0 81.8 621. 58.5 5.46 1.92
PRN09 7.0 80.4 -40.3 57.6 5.15 2.03
PRN10 7.0 80.8 21.3 61.2 5.15 2.01
PRN13 5.0 81.3 821. 57.4 5.22 2.06
PRN14 7.0 80.6 29.3 53.5 5.15 2.22
PRN15 6.6 3.66 552. 62.0 5.00 2.04
PRN16 7.0 79.8 60.5 58.9 5.15 2.20
PRN17 6.7 80.9 -179. 62.2 5.00 1.96
PRN18 7.0 81.2 13.7 56.2 5.30 2.13
PRN19 7.0 79.9 390. 59.0 5.00 2.06
PRN21 7.0 80.1 37.6 59.4 5.00 2.02
PRN22 7.0 82.0 1.05 57.5 5.16 2.09
PRN23 7.0 80.5 12.7 60.6 5.89 2.05
PRN24 6.6 81.4 839. 58.6 5.15 2.03
PRN25 7.0 81.5 -6.74 52.4 5.00 2.07
PRN26 7.0 80.1 31.7 56.8 5.44 2.02
PRN27 7.0 80.7 26.4 58.2 5.00 2.11
PRN29 7.0 80.6 455. 52.9 5.00 2.24
PRN30 7.0 81.1 -37.5 55.8 5.33 2.10
PRN31 7.0 81.4 3.31 58.9 5.15 2.13
_______________________
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
98 5 3 98 5 4 98 5 5 98 5 6 98 5 7 98 5 8 98 5 9
prn 3d rss (cm)
1 473 345 290 320 315 309 292
2 684 616 520 787 414 400 426
3 203 192 166 251 382 384 237
4 894 412 582 320 561 445 383
5 395 274 427 416 245 213 430
6 386 510 650 489 380 393 374
7 936 414 248 438 303 339 476
8 862 799 807 735 262 274 375
9 257 237 195 211 635 293 511
10 561 365 303 337 477 296 306
13 470 199 557 665 2194
14 661 564 285 290 471 890 555
15 386 554 402 382 260 336 294
16 707 1765 391 587 248 806 463
17 648 393 357 255 328 352 262
18 328 292 287 434 596 371 489
19 935 1049 213 464 820 345 245
21 183 218 288 252 236 368 550
22 244 242 281 300 438 527 338
23 684 556 518 640 824 203 716
24 1295 896 458 531 293 138 245
25 504 349 524 519 221 280 328
26 166 230 309 196 335 186 274
27 333 580 411 566 301 377 315
29 183 236 287 238 252 243 321
30 188 346 319 419 421 217 274
31 372 457 339 261 342 549 159
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo areq asc1 auck bahr barb brus cas1 casa chat coco cro1 dav1 dgar drao eisl fair fort gala gol2 guam hark hrao irkt kely kerg kit3 kokb kwj1 lhas lpgs mac1 mad2 mag0 mali mas1 mate mcm4 mdvo medi mkea noto noum nrc1 ntus nya1 ohig onsa petr pie1 sant suth tid2 tskb usno usud wtzr wuhn yaka yar1 yell zeck
[Mailed From: djeff at cobra.jpl.nasa.gov]
More information about the IGSREPORT
mailing list