[IGSREPORT-7174] Wk 1060 JPL Analysis Report
David C Jefferson
djeff at cobra.jpl.nasa.gov
Tue May 16 09:56:16 PDT 2000
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IGS Electronic Report 16 May 09:56:17 PDT 2000 Message Number 7174
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Author: D C Jefferson
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JPL ANALYSIS REPORT GPS-WEEK 1060 (DAYS 121-127, DATES 2000 Apr 30 - May 06)
******************************************************************************
Submitted by the JPL IGS/FLINN Analysis Team:
D C Jefferson, Y E Bar-Sever, M B Heflin, 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/1060. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl10607.sum This text file.
jpl10607.erp Earth rotation parameters for GPS week 1060.
jpl10607.snx Ground station coordinates for GPS week 1060, SINEX format.
jpl1060[0-6].sp3 GPS ephemerides for GPS week 1060, sp3 format.
jpl1060[0-6].tro Ground station troposphere estimates for GPS week 1060.
jpl1060[0-6].clk GPS and ground station clocks for GPS week 1060, RINEX.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 10.0 cm
GPS SYSTEM UPDATE
-----------------
According to a United States Press Release included in IGS Mail Message 2816,
Selective Availabilty (SA) was disabled at midnight on day 122 (May 1, 2000).
The RMS clock noise of GPS clock solutions in our engineering data summary
has dramatically decreased. Values this week are around 45 ns because they
include a mixture of SA-on/SA-off days; we expect these will be on the order
of 1-5 ns beginning next week (1061), which is completely SA-free.
GENERAL
-------
We continue to exclude data from IGS stations that do not employ Dorne-Margolin
style antennae (see IGS Report #6260).
A large clock discontinuity (reset) of about 109 microseconds was detected
for PRN03 at approximately 17:20 on day 124.
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: ALGO (not USNO) used as reference clock days 122-125.
WARNING: Data from PRN15 and PRN18 excluded the entire GPS week 1060.
WARNING: Data from PRN23, PRN27, PRN29, PRN30 excluded day 121.
WARNING: Data from PRN17 excluded day 123.
WARNING: Data from PRN02, PRN11, PRN17, PRN24 excluded day 124.
WARNING: Data from PRN02, PRN10, PRN25 excluded day 126.
WARNING: Data from PRN02, PRN22 excluded day 127.
WARNING: Data from AMMN, GLSV, GOL2, HNPT, KOUR, MAD2, NANO, TID2, WTZT excluded day 121.
WARNING: Data from AMMN, GOL2, HNPT, MAD2, NANO, TID2, WTZT excluded day 122.
WARNING: Data from AMMN, DGAR, GLSV, GOL2, KELY, MAD2, TID2, WTZT excluded day 123.
WARNING: Data from GOL2, HARV, MAD2, TID2 excluded day 124.
WARNING: Data from CIT1, GOL2, MAD2, TID2 excluded day 125.
WARNING: Data from AMC2, GOL2, MAD2, TID2 excluded day 126.
WARNING: Data from GOL2, MAD2, TID2, WTZT excluded day 127.
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 1060 (2000 Apr 30 - May 06)
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
51664.50 88814 337675 2253705 10710 41 47 191 191 42 0 21 621 -630
51665.50 89388 337295 2242847 11006 30 34 161 161 42 0 25 291 -716
51666.50 89966 336938 2231810 11067 34 38 166 166 42 0 24 290 -305
51667.50 90031 336540 2220675 11204 35 40 193 193 42 0 21 -63 -477
51668.50 89863 335736 2209338 11470 30 35 155 155 42 0 25 -647 -1316
51669.50 89354 334287 2198079 11048 35 42 178 178 42 0 22 -365 -538
51670.50 89014 333419 2187001 11107 34 41 171 171 42 0 23 -404 -423
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 1060:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 1060 (2000 Apr 30 - May 06)
00 4 30 00 5 1 00 5 2 00 5 3 00 5 4 00 5 5 00 5 6
prn 3d rss (cm)
1 8 5 9 14 9 9 5
2 28 24 34
3 5 5 4 8 12 11 5
4 9 13 8 10 9 13 12
5 8 12 6 10 16 16 15
6 16 10 10 10 24 19 14
7 15 13 9 8 11 14 10
8 6 11 6 6 7 13 11
9 6 9 9 24 19 11 8
10 10 8 6 14 12 8
11 12 8 4 8 14 17
13 7 14 5 11 10 12 9
16 10 9 10 11 7 12 6
17 7 8 28 18 7
19 6 6 11 15 8 14 19
21 10 9 8 8 11 11 8
22 9 9 6 10 14 11
23 8 11 10 7 16 12
24 10 12 7 10 10 6
25 6 6 7 16 16 14
26 6 11 7 17 13 13 9
27 12 6 7 8 13 10
29 10 9 12 12 11 8
30 9 15 23 16 12 8
31 7 6 8 15 16 10 5
_______________________
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 1060 (2000 Apr 30 - May 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)
| | | | | | |
|___ |__ |_______ |_______ |___ |___ |__
ALGO* 6.7 .105 -2.99 39.1 5.37 3.20
AOA1 1.0 22.8 .544e-02 73.0 5.00 2.67
AREQ* 4.9 .236e+05 85.4 28.9 5.43 3.57
ARTU 3.9 72.7 -.764e-01 35.2 4.80 2.71
ASC1 6.8 113. -.136e-01 86.9 6.91 2.53
BAHR 6.9 .547 449. 34.7 4.74 2.98
CAS1* 1.0 10.9 -.171e-02 28.0 4.00 .947
CHAT* 6.0 68.7 -.986e-03 90.6 5.37 3.01
CIC1 3.8 103. -.289e-01 65.4 4.68 2.76
CRO1 6.0 .140 -.419 40.6 6.24 2.91
DAEJ 2.0 3.29 681. 65.0 5.56 2.78
DAV1* 5.5 33.1 -.500e-02 53.1 3.77 .845
DGAR 5.0 .650e+06 252. 33.3 6.85 3.44
EISL 3.9 36.6 -.690e-02 79.6 5.49 2.71
FAIR* 6.9 .761 .159 28.3 5.32 1.84
FORT* 5.9 96.0 -.170e-01 95.1 7.09 1.67
GALA 6.9 62.3 -.116 32.5 5.45 4.02
GUAM* 6.8 64.1 -.150 45.2 7.98 3.35
HARK* 7.0 8.08 310. 65.5 5.30 3.31
HOB2* 3.0 .151 -16.2 39.3 5.00 3.15
HOLB 1.0 59.4 353. 38.0 5.00 3.47
HRAO 3.0 1.46 297. 76.8 4.70 3.35
IRKT* 5.9 .172 -.402 70.5 5.00 2.80
JAB1 6.9 .114e+06 -3.78 60.1 5.49 3.18
JAMA 1.0 30.0 -.838e-01 57.0 7.00 3.41
JPLM 1.0 15.3 229. 53.0 4.00 3.02
KELY 4.9 60.1 .119e-02 67.3 6.00 1.33
KERG* 7.0 1.69 12.9 48.6 5.61 3.10
KOKB* 6.9 .203 -2.48 42.3 5.97 3.41
KOUR* 2.9 59.8 -.102 43.8 7.38 4.50
MAC1* 6.5 55.3 -.102 33.5 4.62 1.96
MAG0 .8 23.0 -.605e-01 44.0 5.00 2.47
MALI 6.1 .335e+05 -213. . 8.27 1.36
MAS1* 6.9 2.29 -.316 29.5 5.48 3.82
MCM4* 1.9 .244e+05 134. 55.5 5.00 .957
MDO1* 1.0 19.9 -4.81 64.0 6.00 2.70
NKLG 7.0 .289e+06 503. 76.1 7.85 1.73
NOTO 1.0 .678e-01 93.0 68.0 6.00 3.14
NOUM 6.9 .285e+06 474. 80.2 5.47 1.92
NTUS 6.7 150. -.106e-01 69.2 7.46 2.09
NYA1 5.8 .122 -.243 33.2 4.47 1.45
OHIG* 6.7 .670e+06 25.0 47.9 4.83 2.47
ONSA* 6.9 20.3 -.513e-01 43.5 4.92 2.50
PETP 3.0 88.0 -.941e-01 42.1 6.11 3.01
POL2 5.0 78.1 -.121e-01 65.5 4.71 2.74
RIOG 1.0 55.7 -.938e-01 16.0 4.00 2.16
SANT* 6.7 39.3 .122 29.0 5.16 2.51
SELE 2.0 58.5 .116e-01 65.8 4.00 2.74
STJO 5.0 2.79 .401 43.9 5.16 3.10
SYOG 1.0 .291e+06 494. 43.0 6.00 1.70
THTI 7.0 .289e+06 498. 72.8 6.20 2.85
TID1 3.8 .110 -.351 29.8 5.54 3.01
TIXI 2.9 89.9 -.880e-01 43.1 4.00 1.77
TOUL 1.0 .464 -.547 71.0 5.00 2.90
TRAB 2.0 .372e+05 -.859 49.5 6.07 2.14
TSKB* 6.9 1.81 .698 67.0 4.09 3.04
USNO 2.6 . . 45.7 5.67 3.60
USUD 2.0 .612 -.458 62.4 4.55 2.48
WTZR* 6.9 1.57 1.75 55.3 5.19 2.93
WUHN 4.9 46.4 -.143e-01 80.6 5.64 2.72
YAR1* 6.8 522. .500 66.1 3.64 2.02
YELL* 7.0 109. .389 43.5 4.53 1.46
ZECK 2.0 64.1 -.414e-02 72.5 5.00 2.31
PRN01 7.0 46.5 127. 54.0 5.31 2.37
PRN02 3.4 59.3 -209. 52.5 6.52 2.22
PRN03 6.9 .991e+04 64.2 54.2 5.16 2.56
PRN04 7.0 46.3 783. 58.5 6.07 2.17
PRN05 6.6 44.6 248. 57.1 5.60 2.32
PRN06 7.0 47.0 1.76 53.4 5.62 2.48
PRN07 7.0 44.9 159. 58.6 6.20 2.52
PRN08 7.0 44.6 703. 54.8 5.16 2.15
PRN09 7.0 45.2 -42.8 61.1 5.82 2.43
PRN10 6.0 49.2 50.5 56.9 5.55 2.32
PRN11 6.0 48.1 324. 62.0 5.18 2.45
PRN13 7.0 47.2 -717. 56.6 5.45 2.31
PRN16 7.0 45.1 195. 57.5 5.31 2.15
PRN17 5.0 50.3 -254. 55.8 5.93 2.66
PRN19 7.0 47.0 165. 55.4 5.15 2.59
PRN21 7.0 46.7 7.93 55.0 5.16 2.50
PRN22 5.8 49.9 333. 55.2 5.72 2.44
PRN23 6.0 37.9 9.78 58.7 6.18 2.60
PRN24 6.0 50.2 714. 56.7 5.87 2.44
PRN25 6.0 49.6 5.42 54.3 5.18 2.57
PRN26 7.0 46.1 395. 53.3 5.49 2.26
PRN27 6.0 35.8 18.1 55.0 5.00 2.17
PRN29 6.0 36.1 591. 54.3 5.71 2.64
PRN30 5.8 37.6 -19.6 56.9 5.55 2.36
PRN31 7.0 46.9 1.85 52.2 5.66 2.40
_______________________
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
00 4 30 00 5 1 00 5 2 00 5 3 00 5 4 00 5 5 00 5 6
prn 3d rss (cm)
1 447 563 471 332 507 330 427
2 633 696 669 822
3 197 189 415 522 434 554 270
4 270 248 261 727 543 556 320
5 521 390 529 928 350 586 539
6 528 502 478 473 446 424 427
7 292 232 548 386 370 330 262
8 353 352 319 393 271 258 178
9 246 272 253 198 228 562 555
10 432 308 224 450 204 364
11 336 246 323 310 222 243
13 277 433 404 376 258 389 528
16 455 507 327 616 486 489 539
17 256 434 444 586 495
19 289 481 331 462 418 282 480
21 242 251 341 210 338 640 458
22 297 454 331 480 323 465
23 488 379 490 607 523 195
24 479 882 564 332 488 445
25 526 537 268 473 410 493
26 469 293 194 242 248 250 215
27 535 407 482 573 483 419
29 362 330 298 403 394 597
30 285 551 832 382 538 758
31 462 429 358 280 220 222 367
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo aoa1 areq artu asc1 bahr cas1 chat cic1 cro1 daej dav1 dgar eisl fair fort gala guam hark hob2 holb hrao irkt jab1 jama jplm kely kerg kokb kour mac1 mag0 mali mas1 mcm4 mdo1 nklg noto noum ntus nya1 ohig onsa petp pol2 riog sant sele stjo syog thti tid1 tixi toul trab tskb usno usud wtzr wuhn yar1 yell zeck
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