[IGSREPORT-4836] Wk 0953 JPL Analysis Report
D
D
Tue Apr 28 18:37:12 PDT 1998
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IGS Electronic Report Tue Apr 28 18:37:12 PDT 1998 Message Number 4836
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Author: D C Jefferson
Subject: Wk 0953 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0953 (DAYS 102-108, DATES 1998 Apr 12 - Apr 18)
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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/0953. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09537.sum This text file.
jpl09537.erp Earth rotation parameters for GPS week 953.
jpl09537.snx Ground station coordinates for GPS week 953, SINEX format.
jpl0953[0-6].sp3 GPS ephemerides for GPS week 953, sp3 format.
jpl0953[0-6].tro Ground station troposphere estimates for GPS week 953.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 10.5 cm
UPDATES
-------
Beginning with the analysis of day 070 (98mar11), we have implemented the JPL
GPS solar pressure model (GSPM_XYZ.1) for all Block II and IIA satellites. We
also use Lockheed-Martin solar pressure for GPS43 (see IGS mail 1833) instead
of the T30 model. (Note: days 072 and 073 are excluded as they were processed
prior to this implementation.)
Beginning with the analysis of day 089 (98mar30), we have switched the phase
center offset vector for GPS43 from (0,0,-1.72) m to (0.058, -0.068, 0.63) m.
We weight data from GPS43 normally as of this day as well.
GENERAL
-------
According to the file nanu1998.mes obtained from the IGS CBIS, PRN24 was
unusable on days 105 and 106. We have excluded data from this satellite
on day 106 only.
Since GPS week 951, several sites have been added as candidate stations.
As with other sites, these stations 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)
GLSV (Golosiiv, Ukraine) 3512889.1452 2068979.8096 4888903.1967
NYA1 (Ny-Alesund, Norway) 1202433.9547 252632.2384 6237772.5646
TRO1 (Tromsoe, Norway) 2102928.6298 721619.4063 5958196.2723
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: USNO (not NRC1) used as reference clock days 102, 104, and 105.
WARNING: MKEA (not NRC1) used as reference clock day 106.
WARNING: TID2 (not NRC1) used as reference clock day 107.
WARNING: Data from PRN08 deweighted the entire GPS week 953.
WARNING: Data from PRN24 excluded day 106.
WARNING: Data from CARR, CIT1, LPGS excluded day 102.
WARNING: Data from CARR, KERG excluded day 103.
WARNING: Data from KELY, KERG, KIT3 excluded day 104.
WARNING: Data from KIT3, MADR excluded day 105.
WARNING: Data from CRO1 excluded day 106.
WARNING: Data from CRO1, EBRE, GRAZ, KELY, KIT3, MADR, ONSA excluded day 107.
WARNING: Data from CRO1, EBRE, GRAZ, KIT3, ONSA excluded day 108.
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 953 (1998 Apr 12 - Apr 18)
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
50915.50 -11371 28105 7809 2000 3 3 11 11 37 22 27 -51 247
50916.50 -11424 28365 5825 1968 3 3 11 11 37 19 27 -38 250
50917.50 -11462 28630 3847 1988 3 3 11 11 37 22 27 -63 241
50918.50 -11476 28899 1857 1991 3 3 11 11 37 23 27 -51 288
50919.50 -11468 29152 -120 1964 3 3 11 11 37 22 26 -16 243
50920.50 -11404 29421 -2082 1960 2 3 10 10 37 22 27 32 279
50921.50 -11343 29727 -4040 1956 2 3 10 10 37 21 27 3 299
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 953:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 953 (1998 Apr 12 - Apr 18)
98 4 12 98 4 13 98 4 14 98 4 15 98 4 16 98 4 17 98 4 18
prn 3d rss (cm)
1 11 9 12 18 10 8 4
2 17 9 15 17 14 10 14
3 7 10 6 9 10 5 10
4 10 8 12 18 15 10 10
5 5 13 20 23 19 10 10
6 7 21 12 11 13 9 6
7 11 11 19 14 11 11 13
8 78 93 162 181 76 70 73
9 16 23 19 26 14 12 7
10 11 10 14 14 15 8 4
13 6 6 11 12 13 4 4
14 15 16 6 6 10 15 9
15 7 11 8 10 10 7 9
16 4 10 8 9 11 8 6
17 13 10 14 14 11 17 13
18 6 7 6 19 7 5 5
19 35 5 7 11 12 3 4
21 10 16 19 18 21 13 12
22 8 6 7 6 6 11 7
23 20 14 12 23 14 12 7
24 17 8 18 23 14 12
25 7 4 3 7 6 8 4
26 17 11 12 9 15 17 9
27 9 8 7 18 14 10 13
29 9 10 4 8 9 7 11
30 5 6 10 13 14 5 4
31 12 10 10 14 14 14 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 953 (1998 Apr 12 - Apr 18)
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 .115 -.606 56.8 4.00 2.77
AREQ* 4.0 114. -1.68 65.0 4.00 2.26
AUCK 3.0 85.7 -.235 45.1 4.69 2.51
BAHR 6.9 .557 96.9 41.0 4.00 2.77
BARB 1.8 101. -.293 34.5 7.00 2.90
BOGT 3.9 .147e+04 -1.52 67.9 5.77 1.61
CHAT 4.0 106. -1.60 79.2 5.26 2.67
COCO 4.7 106. -.173e+05 50.3 7.41 2.29
CRO1 1.0 142. .451e-01 64.0 6.00 2.14
DAV1* 4.8 137. -.126 . 4.61 1.45
DGAR 5.0 616. -1.24 64.0 6.01 1.61
EISL 5.9 353. -1.13 69.9 5.53 2.43
FORT* 7.0 .248 -1.22 86.4 6.86 1.64
GALA 2.4 721. -.165 80.7 5.75 1.37
GOL2* 6.5 697. -1.54 63.0 4.00 1.72
GUAM* 6.9 136. -1.02 69.0 6.73 1.95
HARK* 7.0 14.1 -4.30 58.5 4.87 2.33
IRKT* 6.8 .241 -.690 57.8 5.00 2.64
KELY .9 89.0 -.252 . 5.00 1.96
KERG* 1.9 .326e+04 .369e+04 . 5.56 2.11
KIT3* 1.9 135. -.115 71.1 4.00 .939
KOKB* 6.9 15.7 -.881 85.8 5.21 2.44
KOUR* 1.9 4.08 .194 75.4 7.00 1.91
KWJ1* 6.3 295. -1.02 73.3 6.15 1.44
LHAS* 6.9 109. -1.04 73.8 4.46 2.38
MAC1* 2.5 97.6 -.236 39.0 4.00 1.97
MAD2* 6.9 243. -.513e-01 55.5 5.59 2.25
MAG0 1.0 .288e+06 477. 32.0 4.00 2.41
MALI* 7.0 107. -505. 94.0 6.59 1.65
MCM4 6.9 92.1 -1.00 43.3 5.00 1.01
MDVO .9 .191e+06 261. 75.0 6.00 1.83
MKEA 3.8 295. -2.70 70.5 4.28 2.59
NOTO .8 .213 2.93 45.0 4.00 2.18
NOUM 3.8 .289e+06 506. 72.1 4.25 1.97
NRC1 2.2 . . 77.5 3.54 2.89
NYA1 1.7 .156 -.827 62.5 5.47 1.95
NYAL 4.8 7.93 -2.34 70.3 5.20 1.39
OHIG* 2.8 .751e+06 46.7 62.7 5.00 1.26
ONSA* 5.0 .269 -.475 39.2 3.83 2.20
PETR 1.9 88.4 -.955e-01 49.4 5.00 2.34
PIE1* 2.0 .139 -.240 56.0 4.53 2.56
POL2 3.0 94.7 -2.22 66.3 4.36 2.37
RCM6 2.5 167. -2.56 78.0 4.43 2.38
REYK 5.0 89.9 -1.37 59.6 5.82 1.96
SANT* 4.1 293. -1.75 56.1 4.59 1.61
STJO 3.0 2.76 3.89 74.5 5.07 2.74
TAHI 3.4 502. -.181 83.4 5.30 1.76
TID2* 7.0 .162 6.40 42.2 5.05 2.19
TSKB* 7.0 1.59 -2.93 52.7 5.20 3.02
USNO 3.2 . . 62.4 5.68 2.71
USUD 5.0 247. .846 48.8 5.76 2.29
WES2 1.0 .255 -6.54 67.0 5.00 2.54
WSLR 3.0 40.5 489. 44.0 4.00 2.99
WTZR* 6.0 .431 .593 64.7 4.24 2.72
WUHN 6.9 7.09 -.114e+04 53.3 4.75 2.32
YAKA 1.0 105. -6.47 60.0 5.00 2.52
YAR1* 7.0 86.5 -1.01 43.3 4.73 2.05
YELL* 7.0 26.3 11.8 46.2 4.89 1.64
ZECK 5.0 72.3 -1.33 55.2 4.87 2.46
PRN01 7.0 78.7 43.8 56.6 5.16 2.28
PRN02 7.0 82.4 -477. 66.6 5.00 2.21
PRN03 7.0 80.5 117. 59.0 5.00 2.11
PRN04 6.6 80.0 20.9 63.4 5.15 2.06
PRN05 7.0 78.0 144. 66.7 5.00 2.06
PRN06 7.0 81.7 -1.27 63.5 5.15 2.02
PRN07 6.9 78.9 774. 62.5 5.00 2.06
PRN09 6.6 80.3 -38.5 63.0 5.31 2.03
PRN10 7.0 81.4 19.7 65.4 5.00 2.13
PRN13 7.0 80.8 836. 60.6 5.00 2.14
PRN14 7.0 80.0 27.6 57.5 5.00 2.15
PRN15 6.6 3.51 544. 65.7 5.15 1.88
PRN16 7.0 82.4 56.8 62.0 5.00 2.36
PRN17 6.7 81.8 -179. 69.6 5.00 1.89
PRN18 7.0 80.0 12.2 61.1 5.00 2.22
PRN19 6.7 78.8 389. 63.6 5.00 1.96
PRN21 7.0 78.8 33.2 60.7 5.00 2.21
PRN22 7.0 82.9 -.593 62.6 5.00 2.23
PRN23 7.0 80.9 11.1 64.2 5.00 2.16
PRN24 5.7 79.8 832. 64.2 5.99 2.05
PRN25 6.8 79.6 -7.60 57.1 5.00 2.06
PRN26 7.0 80.1 -45.6 58.0 5.15 2.21
PRN27 6.6 78.3 23.3 64.4 5.00 1.89
PRN29 7.0 81.9 405. 53.2 5.00 2.34
PRN30 7.0 82.4 -35.2 62.8 5.00 2.07
PRN31 7.0 82.7 1.94 61.3 5.31 2.14
_______________________
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 4 12 98 4 13 98 4 14 98 4 15 98 4 16 98 4 17 98 4 18
prn 3d rss (cm)
1 460 421 515 560 350 473 522
2 209 185 254 519 301 418 243
3 234 289 269 371 368 253 341
4 586 388 508 300 291 408 822
5 413 225 209 283 407 441 334
6 506 508 660 573 708 502 425
7 366 410 389 342 462 337 474
8 223 466 565 222 311 398 582
9 300 247 210 405 364 546 590
10 158 313 382 264 250 464 379
13 247 377 377 453 326 778 384
14 288 942 1705 453 736 1025 1403
15 452 414 299 356 327 428 684
16 462 292 253 368 320 361 925
17 512 333 443 341 366 442 334
18 872 380 345 316 292 346 450
19 1344 967 416 271 305 213 219
21 307 333 311 318 282 426 295
22 524 507 522 628 1084 592 902
23 235 510 513 267 530 398 264
24 473 410 516 1867 1642 742
25 244 234 352 349 350 500 292
26 228 326 161 173 173 429 312
27 764 730 892 822 640 1187 921
29 623 385 361 414 568 325 403
30 356 371 247 236 362 469 325
31 286 342 295 261 282 369 344
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo areq auck bahr barb bogt chat coco cro1 dav1 dgar eisl fort gala gol2 guam hark irkt kely kerg kit3 kokb kour kwj1 lhas mac1 mad2 mag0 mali mcm4 mdvo mkea noto noum nrc1 nya1 nyal ohig onsa petr pie1 pol2 rcm6 reyk sant stjo tahi tid2 tskb usno usud wes2 wslr wtzr wuhn yaka yar1 yell zeck
[Mailed From: djeff at cobra.jpl.nasa.gov]
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