[IGSREPORT-7074] Wk 1055 JPL Analysis Report
David C Jefferson
djeff at cobra.jpl.nasa.gov
Tue Apr 11 16:02:13 PDT 2000
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IGS Electronic Report 11 Apr 16:02:44 PDT 2000 Message Number 7074
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Author: D C Jefferson
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JPL ANALYSIS REPORT GPS-WEEK 1055 (DAYS 86-92, DATES 2000 Mar 26 - Apr 01)
******************************************************************************
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/1055. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl10557.sum This text file.
jpl10557.erp Earth rotation parameters for GPS week 1055.
jpl10557.snx Ground station coordinates for GPS week 1055, SINEX format.
jpl1055[0-6].sp3 GPS ephemerides for GPS week 1055, sp3 format.
jpl1055[0-6].tro Ground station troposphere estimates for GPS week 1055.
jpl1055[0-6].clk GPS and ground station clocks for GPS week 1055, RINEX.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 11.0 cm
STRATEGY UPDATE
---------------
We continue to exclude data from IGS stations that do not employ Dorne-Margolin
style antennae (see IGS Report No. 6260).
This week, we incorporate pseudorange bias corrections for cross-correlating
receivers in the global network (typically, TurboRogues and Trimble 4000s).
For these receiver types, CA and "P2" measurements are converted to true P1
and P2 values by applying point-by-point, satellite-dependent pseudorange
corrections as outlined in IGS Mail Message No. 2744. For details on the
necessity of this operation stemming from processing a network of mixed
receiver types, please see IGS Mail Message No. 2320.
GENERAL
-------
This week, we add two new candidate global stations. As with other sites,
these sites are 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)
ISTA (Istanbul, Turkey) 4208830.5007 2334850.2372 4171267.2704
TRAB (Trabzon, Turkey) 3705250.5866 3084421.6821 4162044.7791
A large clock discontinuity (reset) of about 1 microsecond was detected
for PRN16 at approximately 15:50 on day 088. Additionally, it appears that
the drift of the clock onboard this satellite simultaneously experienced a
shift from about +47 ps/s to -63 ps/s. Also, the drift of this satellite's
clock shifted from about -74 ps/s to +57 ps/s on day 090.
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 day 086.
WARNING: FAIR (not USNO) used as reference clock days 087-089.
WARNING: DRAO (not USNO) used as reference clock days 090-092.
WARNING: Data from PRN15 and PRN18 excluded the entire GPS week 1055.
WARNING: Data from PRN14, PRN29 excluded day 086.
WARNING: Data from PRN02, PRN13, PRN14 excluded day 087.
WARNING: Data from PRN14 excluded day 088.
WARNING: Data from PRN10, PRN14, PRN30 excluded day 089.
WARNING: Data from PRN14, PRN17, PRN26 excluded day 090.
WARNING: Data from PRN19 excluded day 091.
WARNING: Data from PRN06, PRN07 excluded day 092.
WARNING: Data from AZU1, CHWK, DUBO, FLIN, GLSV, GOL2, KUNM, LHAS, MAD2, NANO, QUIN, RIOP, TID2, UCLU, WHIT, WSLR excluded day 086.
WARNING: Data from AZU1, CHWK, DUBO, FLIN, GLSV, GOL2, IISC, KUNM, LHAS, MAD2, NANO, NYA1, QUIN, TID2, UCLU, WHIT, WSLR, WSRT excluded day 087.
WARNING: Data from CHWK, CORD, DUBO, FLIN, GLSV, GOL2, GRAZ, HERS, KUNM, LHAS, MAD2, NANO, QUIN, TID2, UCLU, USNO, WHIT, WSLR excluded day 088.
WARNING: Data from CIT1, DUBO, FLIN, GOL2, KUNM, LHAS, MAD2, NANO, QUIN, RIOP, TID2, UCLU, WHIT excluded day 089.
WARNING: Data from CIT1, DUBO, FLIN, GOL2, KUNM, MAD2, NANO, TID2, UCLU, WES2, WHIT excluded day 090.
WARNING: Data from CIT1, DARW, DUBO, FLIN, GOL2, IISC, KUNM, LHAS, MAD2, MATE, NANO, RAMO, TID2, UCLU, WHIT excluded day 091.
WARNING: Data from ALIC, BJFS, COCO, DAEJ, DARW, DAV1, DUBO, FLIN, GOL2, HOB2, IISC, JAB1, KARR, KUNM, MAD2, MAW1, MCM4, NANO, NTUS, OHIG, PERT, RAMO, STR1, SUWN, TID2, TORP, TOW2, UCLU, URUM, WHIT, WTZT, YAKZ, YAR2, YSSK excluded day 092.
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 1055 (2000 Mar 26 - Apr 01)
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
51629.50 73218 349303 2616172 8516 42 48 149 149 42 0 24 -276 -622
51630.50 72962 348496 2607817 8194 42 49 215 215 42 0 23 -186 715
51631.50 72542 347736 2599103 9234 39 44 146 146 42 0 25 -361 -458
51632.50 72911 347008 2590114 8744 42 48 172 172 42 0 23 527 -603
51633.50 73905 346187 2581436 8611 44 53 158 158 42 0 23 950 -354
51634.50 74874 346042 2573263 7736 42 46 152 152 42 0 25 1501 113
51635.50 75482 346134 2565290 8209 50 55 158 158 42 0 23 899 -529
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 1055:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 1055 (2000 Mar 26 - Apr 01)
00 3 26 00 3 27 00 3 28 00 3 29 00 3 30 00 3 31 00 4 1
prn 3d rss (cm)
1 17 11 8 10 14 13 12
2 7 12 6 7 14 12
3 12 16 11 11 10 8 20
4 17 20 12 11 7 10 9
5 22 14 13 8 8 8 10
6 10 9 11 10 11 10
7 31 14 17 18 11 9
8 11 8 19 15 8 8 9
9 13 10 10 12 12 10 19
10 34 33 5 4 9 10
11 22 9 14 15 13 17 14
13 11 10 12 7 7 7
16 15 11 7 12 23 17 30
17 8 10 25 22 9 16
19 7 10 13 10 6 9
21 7 6 19 18 18 17 16
22 9 10 9 14 10 6 8
23 16 13 18 20 23 22 15
24 44 33 13 8 6 10 10
25 21 12 11 13 14 10 12
26 20 9 16 6 11 11
27 12 9 17 14 9 7 9
29 16 13 31 42 26 13
30 16 9 8 13 10 18
31 10 10 13 8 7 8 15
_______________________
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 1055 (2000 Mar 26 - Apr 01)
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 .246 -2.65 44.7 4.17 2.44
AMC2 1.0 .332e-01 .322e-01 40.0 6.00 3.29
AOML 2.0 126. -.242e-01 84.6 6.33 2.96
AREQ* 7.0 18.6 77.1 27.6 5.46 2.65
ARTU 7.0 108. -.111 26.0 4.87 2.39
ASC1 6.6 70.9 -.135e-01 88.2 6.61 2.02
BAHR 7.0 .817e+05 455. 36.2 4.61 2.78
BJFS 3.0 1.16 604. 20.3 4.36 2.79
BRMU* 2.0 137. -.152e-01 77.4 7.54 3.23
CAS1* .9 65.8 -.187e-01 32.0 4.00 .600
CHAT* 5.0 124. -.107e-01 88.6 5.00 2.92
CIC1 4.9 152. -.503e-01 76.6 4.22 2.33
COCO 2.0 69.3 -.115e-01 28.4 7.06 3.78
CRO1 4.0 .232 -.206 57.7 6.25 2.26
DAEJ 1.0 1.55 682. 66.0 5.00 2.53
DARW .8 76.8 -.278e-01 32.0 8.00 2.74
DAV1* 5.8 63.4 -.119e-01 72.2 4.00 1.06
DGAR 6.5 66.7 -.144e-01 34.7 6.19 2.46
DRAO 2.9 . . 45.4 5.00 2.82
EISL 3.8 170. -.854e-01 90.0 5.71 2.44
FAIR* 7.1 .718 .684e-01 32.2 6.13 1.82
FORT* 5.0 2.11 -1.62 . 7.14 1.69
GALA 7.0 97.8 -.142 31.6 6.74 3.13
GODE .9 .711e-01 .191 40.0 7.00 3.16
HARK* 6.7 14.0 330. 68.7 5.61 2.49
HOB2* 5.0 .961e-01 -12.4 51.9 6.04 3.31
HRAO 2.0 .977e-01 .154 92.1 4.00 2.71
IRKT* 6.9 .129 -.197 85.7 6.00 2.98
JAB1 4.9 102. -.162 64.0 6.21 2.79
JAMA 3.0 123. -.110 55.4 6.00 3.56
KELY 2.0 136. -.316e-02 92.5 5.00 1.39
KERG* 7.0 1.87 16.8 53.4 6.29 2.61
KIT3* 1.8 131. -.386e-02 48.5 5.00 3.24
KOKB* 7.0 .431 -.571 59.4 7.15 2.90
KOUR* 5.9 98.3 -.119 44.0 7.61 2.40
MAC1* 5.5 95.6 -.135 34.3 4.67 2.28
MAG0 4.0 .760e+04 -.507e-01 27.3 5.00 2.23
MALI 1.3 48.5 -225. . 8.53 1.35
MAS1* 3.0 2.54 1.01 28.3 5.35 3.50
MDO1* .8 13.3 -14.2 71.0 4.00 2.32
NOTO 2.0 .811e-01 96.9 72.0 5.52 3.24
NOUM 7.0 .289e+06 501. 85.3 5.90 2.06
NRC1 1.0 .274 -.165e-02 44.0 4.00 1.99
NRC2 1.0 .134 -.251 41.0 3.00 1.63
NTUS 4.5 539. -.176e-01 67.9 7.43 1.54
NYA1 3.0 .111 .872e-01 30.1 4.38 1.27
NYAL 5.0 .133 -.531 45.8 4.80 1.20
OHIG* 6.0 90.7 -.994e-02 52.0 5.36 2.55
ONSA* 4.7 33.4 -.622e-01 42.6 4.22 2.46
PETP 3.0 127. -.115 35.4 5.00 2.47
POL2 1.0 149. -.534e-01 92.0 5.00 2.37
REYK 5.0 106. -.936e-02 79.5 6.06 1.61
RIOG .9 111. -.109 20.0 4.00 2.52
SANT* 6.9 90.0 -.200 35.8 7.16 2.13
SELE 3.8 .291e+04 -.126 81.7 3.91 2.56
SFER 4.0 .530 91.3 83.0 5.06 2.61
STJO 5.0 3.20 .451 39.2 4.81 2.62
STR1 1.0 1.03 -4.41 25.0 6.00 3.88
THTI 7.0 .289e+06 497. 77.0 7.73 2.62
THU1* 1.0 79.3 -.435e-02 61.0 6.00 1.30
TIXI 3.9 108. -.110 27.0 4.79 1.67
TOW2 2.0 71.1 -.128e-01 20.0 5.00 3.73
TRAB 3.8 38.5 .197e-01 49.8 5.00 2.14
TSKB* 6.1 1.69 .187 62.7 3.81 2.82
USNO 1.0 .127 2.34 42.0 6.00 3.63
WSRT 1.0 .548e-01 -.843e-02 29.0 4.00 2.55
WTZR* 7.0 81.6 .679 52.4 5.93 3.02
WUHN 1.9 162. -.768e-01 70.5 4.00 2.40
YAR1* 6.9 .112e+04 -1.16 73.8 3.76 2.25
YELL* 7.0 .134 .100 39.4 3.88 1.67
ZECK 2.0 120. -.577e-02 83.5 4.00 2.26
PRN01 7.0 78.4 122. 54.7 5.16 2.36
PRN02 6.0 79.3 -195. 56.6 5.84 2.22
PRN03 7.0 82.0 98.9 55.5 5.16 2.30
PRN04 6.6 82.5 767. 59.7 5.73 1.93
PRN05 7.0 81.0 245. 56.6 5.74 2.40
PRN06 6.0 78.9 1.60 54.5 5.68 2.35
PRN07 6.0 80.1 88.3 56.8 5.69 2.21
PRN08 6.8 82.0 706. 52.5 5.30 2.21
PRN09 6.8 81.4 -37.9 54.4 5.59 2.34
PRN10 6.0 81.1 48.8 57.0 5.52 2.28
PRN11 6.9 81.9 245. 54.3 5.87 2.21
PRN13 6.0 78.9 -651. 59.9 5.51 2.19
PRN14 1.0 80.7 9.89 73.0 7.00 2.30
PRN16 6.8 478. 55.3 62.4 5.29 1.89
PRN17 5.8 82.9 -249. 58.1 6.04 2.15
PRN19 5.9 80.5 134. 53.2 5.17 2.38
PRN21 7.0 81.0 5.53 56.7 5.30 2.56
PRN22 7.0 80.4 369. 58.3 5.45 2.43
PRN23 7.0 82.5 8.41 58.8 6.30 2.44
PRN24 6.6 82.6 681. 57.2 6.02 2.16
PRN25 7.0 82.1 5.00 55.1 5.73 2.34
PRN26 6.0 78.4 318. 52.8 6.18 2.24
PRN27 6.9 78.7 14.5 53.3 5.00 2.12
PRN29 6.0 81.6 522. 56.6 5.68 2.39
PRN30 6.0 81.3 -15.0 60.4 6.03 2.16
PRN31 7.0 81.5 40.9 55.1 5.15 2.38
_______________________
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 3 26 00 3 27 00 3 28 00 3 29 00 3 30 00 3 31 00 4 1
prn 3d rss (cm)
1 525 414 450 390 541 611 505
2 680 344 531 526 293 763
3 440 281 269 311 312 329 613
4 341 463 699 450 611 444 489
5 371 367 518 490 474 527 493
6 530 391 400 515 633 443
7 313 320 342 360 512 396
8 237 287 357 342 407 332 286
9 586 370 343 266 365 416 299
10 527 593 689 698 643 653
11 197 169 256 271 456 1102 176
13 224 358 251 269 332 684
14 3223
16 771 744 574 402 684 540 576
17 341 316 362 460 368 361
19 278 394 486 476 387 1282
21 531 270 332 234 326 375 324
22 410 466 450 365 495 506 341
23 703 811 578 330 445 358 1131
24 550 342 374 665 508 351 396
25 351 354 474 478 619 553 688
26 285 290 333 325 449 429
27 733 946 795 787 1234 686 822
29 432 632 656 527 470 524
30 486 306 294 328 563 344
31 454 419 532 280 440 264 467
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo amc2 aoml areq artu asc1 bahr bjfs brmu cas1 chat cic1 coco cro1 daej darw dav1 dgar drao eisl fair fort gala gode hark hob2 hrao irkt jab1 jama kely kerg kit3 kokb kour mac1 mag0 mali mas1 mdo1 noto noum nrc1 nrc2 ntus nya1 nyal ohig onsa petp pol2 reyk riog sant sele sfer stjo str1 thti thu1 tixi tow2 trab tskb usno wsrt wtzr wuhn yar1 yell zeck
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