[IGSREPORT-6359] Wk 1021 JPL Analysis Report
D
D
Tue Aug 17 11:23:27 PDT 1999
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IGS Electronic Report Tue Aug 17 11:23:27 PDT 1999 Message Number 6359
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Author: D C Jefferson
Subject: Wk 1021 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 1021 (DAYS 213-219, DATES 1999 Aug 01 - Aug 07)
******************************************************************************
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/1021. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl10217.sum This text file.
jpl10217.erp Earth rotation parameters for GPS week 1021.
jpl10217.snx Ground station coordinates for GPS week 1021, SINEX format.
jpl1021[0-6].sp3 GPS ephemerides for GPS week 1021, sp3 format.
jpl1021[0-6].tro Ground station troposphere estimates for GPS week 1021.
jpl1021[0-6].clk GPS and ground station clocks for GPS week 1021, RINEX.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 11.0 cm
Beginning day 213, JPL rapid and final products submitted to the IGS
make use of ITRF97. Monument coordinates and velocities are taken from
ftp://igscb.jpl.nasa.gov/igscb/station/general/ITRF97_IGS_RS51.SNX, and
antenna heights from ftp://igscb/igscb/station/general/igs.snx. (Antenna
reference point to L1 and L2 phase centers are from ftp://igscb/igscb/station/
general/igs_01.pcv.)
As we use only 39 stations in our daily processing, we select a subset of the
51 sites designated by the IGS as fiducials in the following manner:
a) Automatically include and constrain the following 20 sites when
available: ALGO DAV1 FAIR FORT GOL2 HARK IRKT KERG KIT3 KOKB KWJ1
MAC1 OHIG ONSA SANT TID2 TSKB WTZR YAR1 YELL.
NOTE a1: For this week only, the coordinates and velocities for FAIR
were inadvertently constrained to their ITRF96 values.
NOTE a2: TID2 is used in place of the IGS fiducial TIDB.
b) Allow the remaining 19 sites to be selected normally, based on
geographic distribution. With the exception of BAHR, BRAZ, and MALI,
constrain any of these that are IGS fiducials to their ITRF97 values.
NOTE b1: For this week only, the coordinates and velocities for MALI
were inadvertently constrained, and constrained to their ITRF96
values.
NOTE b2: For this week only, AUCK, CHAT, and MCM4 were inadvertently
not constrained as fiducials at all on days they participated
in the global analysis.
The jpl.acn file at the IGS CBIS has been updated to reflect the switch to
the new reference frame. Please note that orbits, Earth orientation, SINEX
station coordinates, and daily transformation files submitted to the IGS are
still all free-network solutions, but are now aligned with ITRF97.
A large clock discontinuity (reset) of about 477 microseconds was detected
for PRN04 at approximately 23:45 on day 217.
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: Data from COCO, KIRU excluded day 213.
WARNING: Data from COCO, QUIN excluded day 214.
WARNING: Data from COCO, SUWN excluded day 215.
WARNING: Data from COCO, TROM excluded day 216.
WARNING: Data from COCO, OAT2 excluded day 217.
WARNING: Data from COCO excluded day 218.
WARNING: Data from NYAL excluded day 219.
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 1021 (1999 Aug 01 - Aug 07)
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
51391.50 -21252 339325 4920750 4360 42 43 132 132 39 0 27 462 1364
51392.50 -20281 340154 4916157 4825 47 48 139 139 39 0 27 1177 817
51393.50 -19153 341238 4911102 5286 41 43 124 124 39 0 27 853 722
51394.50 -17943 341987 4905668 5581 47 48 111 111 39 0 27 1043 884
51395.50 -16333 342863 4900419 4918 45 45 111 111 39 0 27 1503 933
51396.50 -15261 344048 4895634 4652 46 50 128 128 39 0 27 566 1092
51397.50 -14442 345210 4891306 4003 45 46 139 139 39 0 27 901 1471
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 1021:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 1021 (1999 Aug 01 - Aug 07)
99 8 1 99 8 2 99 8 3 99 8 4 99 8 5 99 8 6 99 8 7
prn 3d rss (cm)
1 15 11 18 15 6 8 14
2 9 8 7 7 6 10 10
3 13 13 23 18 10 20 18
4 7 6 6 7 7 17 8
5 6 10 12 9 10 5 11
6 18 13 8 10 10 6 7
7 6 10 5 6 6 7 10
8 6 6 11 8 6 5 7
9 8 13 13 11 12 13 13
10 10 12 10 13 12 11 10
13 14 14 13 16 10 12 14
14 10 13 16 11 17 22 17
15 22 36 39 9 8 11 14
16 13 12 8 6 9 8 9
17 20 21 28 24 22 18 25
18 11 10 7 7 14 18 11
19 11 11 18 6 8 12 9
21 8 6 12 7 9 8 9
22 14 13 11 11 6 11 7
23 23 14 17 15 20 18 25
24 13 14 6 12 10 11 14
25 13 10 13 13 12 10 9
26 14 9 14 19 16 9 9
27 9 8 7 6 7 9 8
29 15 15 21 14 21 19 28
30 12 9 18 11 12 6 9
31 14 10 15 11 7 9 13
_______________________
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 1021 (1999 Aug 01 - Aug 07)
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 .780e-01 -.847 86.2 5.15 2.61
ASC1 6.7 122. -.163e-01 76.0 5.45 1.61
AUCK* 1.9 83.5 -.302e-02 50.5 5.55 2.93
BAHR 7.0 .563 910. 40.5 5.31 2.98
BARB 3.5 103. -.888e-01 43.2 6.80 3.64
BOGT .8 .516e+05 1.19 96.0 5.00 1.33
CHAT* 3.0 101. -.624e-02 83.3 5.35 2.43
CRO1 1.8 .294e+04 .701e-01 66.0 5.52 1.85
DAV1* 5.7 133. .124e-01 . 5.00 1.38
DGAR 6.2 114. -.381e-01 75.2 5.06 1.64
EISL 7.0 135. -.185e-01 68.0 5.00 2.82
FAIR* 2.9 594. .455 33.7 6.00 1.87
FORT* 7.0 .164 .928e-01 80.7 4.87 1.87
GOL2* 6.9 5.81 2.20 72.8 4.60 2.32
GUAM* 7.0 129. -.614e-01 84.8 6.32 1.99
HARK* 7.0 .287e+06 503. 57.6 4.74 3.10
HOB2* 6.9 .101e+04 -9.41 47.7 5.03 2.79
HOLB 1.0 121. 80.6 60.0 5.00 3.29
HRAO 3.9 42.0 -.533e-02 45.1 4.00 2.61
IISC 6.9 99.5 -.512e-01 79.0 5.16 2.14
IRKT* 5.9 .191 315. 74.1 5.36 2.45
KELY 3.4 .183e+04 -.284 . 5.72 1.39
KERG* 7.0 .289e+06 501. . 5.00 2.92
KIT3* 2.8 404. -.686e-01 79.0 5.07 2.49
KOKB* 7.0 396. -1.43 74.0 7.02 3.63
KUNM 6.0 130. -.350e-01 76.1 5.18 2.54
KWJ1* 6.9 109. -.387e-01 82.4 5.91 1.56
LHAS* .8 105. -.371e-01 82.0 5.00 2.27
MAC1* 3.9 92.7 -.339e-02 42.5 4.27 2.30
MAD2 2.0 .720e-01 .176 86.5 6.52 2.37
MAG0 4.8 .289e+06 485. 32.2 4.83 1.71
MALI 6.6 19.0 -89.8 90.3 7.17 1.83
MCM4* 6.8 128. .147e-02 51.2 4.73 1.19
MKEA 6.0 41.2 .478e-01 72.1 4.37 2.44
NOUM 2.0 .289e+06 487. 78.5 5.00 1.89
NTUS 2.9 98.1 -.660e-01 95.2 6.00 1.46
NYA1 7.0 .126 -.675e-01 49.8 5.30 1.96
ONSA* 7.0 34.8 -.537e-01 45.0 4.31 2.82
PIMO 1.0 129. -.337e-01 70.0 8.00 2.03
POL2 4.0 134. -.404e-02 73.4 4.27 2.68
RIOG 6.0 .289e+06 475. 31.2 4.18 3.15
SANT* 7.0 93.3 .672 56.4 4.75 2.59
SFER 4.8 .725 151. 80.0 4.65 2.68
SYOG .8 .865 -1.07 40.0 5.00 1.79
THTI 7.0 .289e+06 501. 80.8 5.00 2.50
TID2* 7.0 .971e-01 1.12 46.3 4.73 2.48
TIXI 1.0 102. -.855e-01 32.0 5.00 2.78
TSKB* 7.0 219. .217 68.5 5.48 2.91
USNO 7.7 . . 68.8 5.89 2.73
USUD 5.9 54.6 -.875 52.6 6.20 2.76
WTZR* 5.8 3.57 1.81 55.7 6.00 3.04
YAKZ 1.0 76.4 -.834e-01 40.0 5.00 2.70
YAR1* 7.0 86.1 .379e-02 46.2 4.00 2.17
YELL* 4.8 .129 .208 75.3 5.22 1.77
PRN01 6.8 81.8 93.5 63.5 5.31 2.47
PRN02 7.0 79.5 -93.3 66.9 5.00 2.37
PRN03 7.0 84.5 28.7 66.4 5.15 2.37
PRN04 6.7 .402e+05 379. 63.4 5.17 2.19
PRN05 7.0 82.5 211. 67.9 5.00 2.51
PRN06 6.8 83.4 -.418e-01 68.0 5.30 2.14
PRN07 7.0 78.8 576. 63.5 5.00 2.23
PRN08 7.0 80.0 25.9 69.2 5.31 2.09
PRN09 7.0 83.0 -4.73 65.2 5.00 2.22
PRN10 7.0 82.7 39.2 65.3 5.00 1.99
PRN13 7.0 79.3 -68.1 65.8 5.31 2.22
PRN14 7.0 81.9 28.6 60.9 5.30 2.26
PRN15 7.0 3.07 711. 67.6 5.00 2.10
PRN16 7.0 81.2 129. 64.9 5.00 2.42
PRN17 7.0 80.7 -218. 69.3 5.31 2.04
PRN18 6.8 79.3 25.8 63.6 5.30 2.23
PRN19 7.0 82.5 24.2 64.9 5.00 2.31
PRN21 6.9 79.4 26.3 66.0 5.00 1.94
PRN22 7.0 79.4 430. 69.4 5.00 2.51
PRN23 7.0 78.6 3.44 67.7 5.74 2.34
PRN24 7.0 81.7 590. 60.8 5.00 2.58
PRN25 7.0 79.8 1.93 65.8 5.00 2.56
PRN26 6.6 83.0 662. 65.6 5.46 2.04
PRN27 7.0 80.3 27.9 66.8 5.00 2.30
PRN29 6.7 81.3 521. 62.3 5.87 2.36
PRN30 7.0 79.9 -27.2 66.2 5.00 2.51
PRN31 7.0 83.6 22.7 63.0 5.00 2.39
_______________________
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 8 1 99 8 2 99 8 3 99 8 4 99 8 5 99 8 6 99 8 7
prn 3d rss (cm)
1 512 400 444 493 605 635 505
2 544 316 177 220 345 497 368
3 206 399 232 253 213 174 198
4 536 294 217 252 305 374 580
5 425 645 392 280 341 225 246
6 946 599 550 491 702 765 1033
7 347 435 219 447 703 457 414
8 317 307 290 303 498 416 322
9 174 211 258 191 243 314 281
10 329 272 258 395 728 607 616
13 139 418 221 283 387 421 663
14 342 1301 799 577 1427 786 435
15 223 308 1566 659 304 374 407
16 693 754 482 467 523 478 594
17 251 278 238 584 303 293 438
18 653 597 720 862 846 829 733
19 289 217 352 379 307 277 267
21 937 257 381 286 194 478 515
22 162 368 315 284 214 193 412
23 560 645 660 404 549 501 585
24 410 571 512 460 330 345 280
25 198 334 582 659 334 330 1065
26 242 284 230 240 553 596 788
27 288 344 222 209 299 287 276
29 335 452 467 347 310 247 275
30 120 125 264 330 290 165 182
31 896 587 334 397 289 260 312
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo asc1 auck bahr barb bogt chat cro1 dav1 dgar eisl fair fort gol2 guam hark hob2 holb hrao iisc irkt kely kerg kit3 kokb kunm kwj1 lhas mac1 mad2 mag0 mali mcm4 mkea noum ntus nya1 onsa pimo pol2 riog sant sfer syog thti tid2 tixi tskb usno usud wtzr yakz yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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