[IGSREPORT-6020] Wk 1006 JPL Analysis Report
D
D
Fri Apr 30 11:00:07 PDT 1999
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IGS Electronic Report Fri Apr 30 11:00:07 PDT 1999 Message Number 6020
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Author: D C Jefferson
Subject: Wk 1006 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 1006 (DAYS 108-114, DATES 1999 Apr 18 - Apr 24)
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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 (137.78.60.30),
directory pub/jpligsac/1006. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl10067.sum This text file.
jpl10067.erp Earth rotation parameters for GPS week 1006.
jpl10067.snx Ground station coordinates for GPS week 1006, SINEX format.
jpl1006[0-6].sp3 GPS ephemerides for GPS week 1006, sp3 format.
jpl1006[0-6].tro Ground station troposphere estimates for GPS week 1006.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 10.0 cm
Data from PRN07 and PRN08 were mismodeled days 111 and 114 respectively, and
have been excluded from the appropriate day's analysis accordingly. Also,
according to several IGS Mail Messages (Nos. 2242, 2248, etc.) and various
NANUs referenced therein, PRN27 is undergoing date testing beginning day 113.
We have excluded data from this satellite from our analyses on this and the
adjacent days this week.
Beginning this week, we add a new candidate global station. As with other
sites, this stations 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)
PIMO (Quezon City, Philippines) -3186294.1261 5286624.2781 1601158.2872
A large clock discontinuity (reset) of about 812 microseconds was detected
for PRN07 at approximately 08:00 on day 110. It appears that the drift of
this satellite's clock experienced a shift from about 0 ns/s to about +3 ns/s
over the course of the day.
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 USNO) used as reference clock days 108 and 110.
WARNING: GOL2 (not USNO) used as reference clock day 112.
WARNING: Data from PRN18 excluded the entire GPS week 1006.
WARNING: Data from PRN27 excluded days 112-114 due to Y2K/rollover testing.
WARNING: Data from CRO1, FORT, IRKT, KELY, MAG0, PETP, SUWN, TIXI, TROM, URUM, YAKZ excluded day 108.
WARNING: Data from CSN1, DHLG, FORT, KELY excluded day 109.
WARNING: Data from CMP9, CSN1, DHLG, KELY, MKEA excluded day 110.
WARNING: Data from PRN07, CMP9, CSN1, DHLG, NYAL excluded day 111.
WARNING: Data from BRAN, CMP9, CSN1, DGAR, MAG0, STJO, UPAD excluded day 112.
WARNING: Data from BRAN, CSN1, GOLD, KELY, UPAD, WTZT excluded day 113.
WARNING: Data from BRAN, CSN1, GOLD, WTZT excluded day 114.
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 1006 (1999 Apr 18 - Apr 24)
version 2
MJD XPole Ypole UT1R-UTC LODR Xsg Ysg UTsg LOsg Nr Nf Nt Xrt Yrt
10**-6" 10**-6" .1us .1us/d 10**-6" .1us .1us/d 10**-6"/d
51286.50 4224 248625 5778721 14197 54 56 190 190 37 0 26 -1462 427
51287.50 2506 248816 5764307 14631 53 55 185 185 37 0 26 -1898 -16
51288.50 1070 248729 5749653 14676 51 53 186 186 37 0 26 -1098 -39
51289.50 -206 248789 5735249 14133 53 54 189 189 37 0 25 -1002 310
51290.50 -1360 248896 5720987 14391 51 53 183 183 37 0 25 -1377 412
51291.50 -2634 249425 5706894 13795 51 52 185 185 37 0 25 -1268 521
51292.50 -4112 250389 5693287 13419 51 57 193 193 37 0 24 -1905 628
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 1006:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 1006 (1999 Apr 18 - Apr 24)
99 4 18 99 4 19 99 4 20 99 4 21 99 4 22 99 4 23 99 4 24
prn 3d rss (cm)
1 9 5 9 9 8 8 9
2 14 6 12 6 6 8 11
3 13 10 7 8 11 7 3
4 29 20 9 8 5 6 6
5 9 9 17 9 11 13 10
6 11 10 8 11 12 11 12
7 14 23 36 16 14 23
8 15 17 14 8 10 10
9 12 16 12 10 11 18 25
10 18 10 8 5 5 7 7
13 12 9 10 8 6 9 7
14 19 9 12 10 12 10 8
15 10 9 16 7 11 10 12
16 12 10 6 6 7 9 8
17 9 11 11 6 8 7 14
19 21 18 11 7 10 8 7
21 12 12 8 6 10 11 11
22 16 9 5 7 4 11 10
23 13 22 16 16 14 14 18
24 48 13 10 11 6 11 11
25 13 5 3 7 4 7 5
26 8 19 14 14 15 14 12
27 10 6 7 5
29 9 6 5 7 6 10 6
30 10 7 9 8 9 11 22
31 10 7 17 10 10 9 8
_______________________
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 1006 (1999 Apr 18 - Apr 24)
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 9.90 -.803e-01 67.6 4.00 2.71
AOML 1.9 .105e+06 5.62 55.0 5.50 2.22
AREQ* 2.0 250. -.976e-02 70.1 4.00 2.26
ASC1 5.8 548. .107e-01 74.7 5.73 1.56
AUCK 5.0 90.9 -.167e-01 46.3 4.22 2.69
BAHR 6.0 .504 210. 41.9 4.36 2.88
BARB 1.0 105. -.107 32.0 7.00 3.74
BOGT 5.5 .688e+04 .253 72.9 5.19 1.67
CAS1 1.8 18.4 584. 35.6 5.52 1.04
DAV1* 5.9 146. -.199e-02 . 5.17 1.42
DGAR 2.9 808. .169e-02 70.0 5.13 1.52
EISL 6.9 164. .387e-02 64.1 5.00 2.90
FAIR* 7.0 .437 .211 57.2 4.45 2.25
FORT* 1.9 .142 -.188 85.9 6.49 1.52
GOL2* 7.0 .222 -.521 70.3 4.00 2.20
GOUG 7.0 .289e+06 497. 58.9 4.74 2.75
GUAM* 6.9 129. -.635e-01 80.2 6.28 2.19
HARK* 7.0 94.4 -.680e-02 62.4 5.04 2.79
HOB2* 4.0 .143 -2.42 46.8 5.06 3.03
HRAO 5.0 50.7 .573e-01 48.3 4.84 2.82
IRKT* 6.0 .112 -48.7 57.6 5.00 2.56
KIT3* 3.8 102. .724e-01 82.0 4.77 1.70
KOKB* 6.9 .721 -.168 82.3 5.31 2.52
KOUR* 2.8 3.62 -5.03 114. 5.66 2.08
KUNM .8 232. .336e-02 69.0 5.00 2.00
KWJ1* 6.7 337. -.308e-02 91.8 6.00 1.67
LPGS .9 197. -.463e-03 54.0 5.00 1.66
MAC1* 6.2 89.9 -.558e-02 39.1 4.50 2.02
MAD2* 6.0 7.03 -.879 85.3 6.00 2.43
MAG0 3.0 .289e+06 478. 30.3 4.69 2.13
MALI* 7.0 22.3 -64.8 93.8 6.88 2.06
MCM4 4.9 115. .364e-02 51.0 5.00 1.12
METS 1.0 .371 -1.54 51.0 4.00 2.34
MKEA 2.0 .979e-01 6.87 63.0 4.53 2.66
NOUM 1.0 .288e+06 496. 78.0 6.00 1.90
NRC1 1.0 .617e-01 -.845e-02 93.0 4.00 2.46
NTUS 2.4 101. -.777e-01 92.0 5.74 1.39
NYA1 6.9 .178 .265 41.5 5.31 1.91
ONSA* 5.4 33.4 -.492e-01 48.1 4.33 2.44
PERT* 1.0 2.31 -3.35 51.0 5.00 2.64
PETP 2.0 147. -.183e-01 63.0 5.00 2.87
PIE1* 2.0 . . 47.5 4.00 2.55
PIMO 2.9 254. -.431e-02 79.0 6.36 2.19
POL2 2.0 110. .787e-02 74.0 4.00 2.10
RAMO .9 .255e+06 423. 53.0 5.00 2.01
REYK .9 106. -.603e-02 60.0 6.00 2.40
RIOG 1.0 .289e+06 471. 57.0 5.00 3.14
SANT* 5.1 757. -.303 46.4 4.51 1.36
SELE 1.0 119. .249e-02 60.0 4.00 2.49
SEY1 1.0 524. .801e-01 84.0 7.00 1.24
THU1* 1.0 68.0 -.389e-02 47.0 6.00 1.74
TID2* 7.0 142. -1.69 44.6 4.88 2.53
TIXI 3.0 105. -.698e-01 33.3 4.00 2.59
TOUL 3.0 .616 155. 67.1 5.00 2.81
TSKB* 7.0 1.34 -.630 56.4 4.45 3.11
USNO 4.1 . . 62.3 5.27 3.09
USUD 6.0 271. -1.34 50.2 4.00 3.08
VESL 4.8 .288e+06 504. 38.6 4.45 2.43
WTZR* 5.9 .618e-01 .480 68.7 4.85 2.91
WUHN 2.0 9.71 -.119e+04 58.0 5.52 2.24
XIAN 2.0 .841e+06 .177e+04 54.5 4.53 2.56
YAR1* 5.8 94.7 -.509e-02 47.8 4.00 2.10
YELL* 7.0 .140 .393 52.9 4.60 1.80
PRN01 7.0 82.7 81.4 57.0 5.00 2.57
PRN02 7.0 80.6 -50.3 63.7 5.00 2.14
PRN03 7.0 81.4 114. 61.3 5.00 2.17
PRN04 6.6 79.4 563. 67.6 5.00 1.98
PRN05 7.0 80.2 196. 63.3 5.00 2.16
PRN06 7.0 82.4 .256 60.7 5.00 2.24
PRN07 5.7 .503e+05 550. 67.1 5.14 2.06
PRN08 6.0 81.6 786. 63.0 5.00 2.03
PRN09 7.0 81.6 -39.3 61.7 5.00 2.25
PRN10 7.0 79.8 35.2 66.8 5.00 2.29
PRN13 7.0 82.0 -124. 61.2 5.00 2.15
PRN14 7.0 80.7 19.3 61.2 5.00 2.07
PRN15 6.6 3.58 675. 63.9 5.00 2.04
PRN16 7.0 80.7 112. 62.7 5.00 2.32
PRN17 6.8 82.3 -209. 61.9 5.00 2.16
PRN19 7.0 82.2 -1.34 59.9 4.86 2.27
PRN21 7.0 82.8 15.0 61.6 5.00 2.33
PRN22 7.0 79.4 359. 64.4 5.00 2.23
PRN23 7.0 80.5 12.2 62.7 5.31 2.35
PRN24 6.6 82.1 560. 65.0 5.00 2.30
PRN25 7.0 82.4 .744 57.3 5.00 2.22
PRN26 7.0 83.9 464. 62.3 5.00 2.17
PRN27 4.0 82.4 17.8 63.8 5.00 1.94
PRN29 7.0 81.8 403. 56.3 5.00 2.43
PRN30 7.0 82.6 -15.4 61.3 5.00 1.95
PRN31 7.0 81.6 17.1 59.9 5.00 2.25
_______________________
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
99 4 18 99 4 19 99 4 20 99 4 21 99 4 22 99 4 23 99 4 24
prn 3d rss (cm)
1 528 461 338 470 483 376 385
2 290 214 264 197 266 308 183
3 297 236 180 208 214 203 286
4 569 239 325 223 387 358 223
5 212 355 338 395 328 403 426
6 671 368 398 336 518 435 844
7 276 261 272 185 314 244
8 304 268 270 201 176 214
9 361 248 225 203 228 215 288
10 350 196 403 296 285 249 257
13 180 285 266 211 199 298 273
14 608 770 925 1281 524 411 540
15 633 396 332 300 260 268 361
16 1248 1873 457 500 330 436 312
17 516 333 400 462 512 401 491
19 390 807 416 232 290 835 1717
21 447 192 180 281 328 304 413
22 343 364 424 399 362 470 674
23 446 447 365 388 739 499 334
24 1249 246 196 175 213 364 227
25 455 404 626 617 552 577 395
26 238 222 156 246 257 343 250
27 285 433 260 504
29 328 274 238 312 392 686 835
30 152 330 144 202 189 161 217
31 350 616 302 265 330 614 384
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo aoml areq asc1 auck bahr barb bogt cas1 dav1 dgar eisl fair fort gol2 goug guam hark hob2 hrao irkt kit3 kokb kour kunm kwj1 lpgs mac1 mad2 mag0 mali mcm4 mets mkea noum nrc1 ntus nya1 onsa pert petp pie1 pimo pol2 ramo reyk riog sant sele sey1 thu1 tid2 tixi toul tskb usno usud vesl wtzr wuhn xian yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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