[IGSREPORT-3914] Wk 0911 JPL Analysis Report
D
D
Tue Jul 8 16:24:24 PDT 1997
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IGS Electronic Report Tue Jul 8 16:24:24 PDT 1997 Message Number 3914
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Author: D C Jefferson
Subject: Wk 0911 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0911 (DAYS 173-179, DATES 1997 Jun 22 - Jun 28)
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Submitted by the JPL IGS/FLINN Analysis Team:
J F Zumberge, D C Jefferson, M B Heflin, M M Watkins, F H Webb
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 (128.149.70.41),
directory pub/jpligsac/0911. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09117.sum This text file.
jpl09117.erp Earth rotation parameters for GPS week 911.
jpl09117.snx Ground station coordinates for GPS week 911, SINEX format.
jpl0911[0-6].sp3 GPS ephemerides for GPS week 911, sp3 format.
jpl0911[0-6].tro Ground station troposphere estimates for GPS week 911.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 13.0 cm
A large clock discontinuity of about 1.4 microseconds was detected for ALGO
at approximately 00:10 UT on day 180. Hence, this site was not used as a
reference clock for this nor the previous day (179). Similarly, a
discontinuity of about 400 microseconds was found for GPS22 at approximately
23:05 on day 178; no action was taken in this instance.
IGS Mail No. 1629 confirms the change in the location of the antenna at HART.
The "new" site is designated as HARK, and beginning this week, we add it as
as a candidate station for global processing. As with other sites, this
station is given the opportunity to participate in the orbit and clock solution
as the global site distribution varies. We do not treat this site as a
fiducial, and the following nominal coordinates were assumed:
X (m) Y (m) Z (m)
HARK (Pretoria, South Africa) 5084625.4495 2670366.5902 -2768493.9530
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: NLIB (not ALGO) used as reference clock day 179.
WARNING: Data from CASA, LHAS, SANT, SPK1 excluded day 176.
WARNING: Data from CASA, LHAS, SANT excluded day 177.
WARNING: Data from CASA, HFLK, KELY, LHAS, MDO1, SNI1 excluded day 178.
WARNING: Data from CASA, CSN1, HFLK excluded day 179.
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 911 (1997 Jun 22 - Jun 28)
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
50621.50 -1493 53304 -460421 1121 3 3 8 8 37 11 25 463 133
50622.50 -1076 53341 -461556 1148 3 3 8 8 37 11 25 423 108
50623.50 -669 53376 -462674 1088 3 3 8 8 37 11 25 403 123
50624.50 -308 53435 -463739 1043 3 4 8 8 37 9 25 383 121
50625.50 80 53493 -464780 1039 3 4 8 8 36 9 25 390 90
50626.50 459 53521 -465836 1072 3 3 8 8 37 10 25 417 88
50627.50 857 53550 -466880 1016 4 3 8 8 37 10 25 406 59
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 911:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 911 (1997 Jun 22 - Jun 28)
97 6 22 97 6 23 97 6 24 97 6 25 97 6 26 97 6 27 97 6 28
prn 3d rss (cm)
1 10 12 11 7 13 8 6
2 16 9 8 8 13 12 10
3 16 13 18 12 11 14 14
4 9 13 14 10 13 8 13
5 24 29 39 19 17 23 41
6 26 18 23 34 20 27 19
7 17 15 17 18 31 24 15
9 12 16 26 14 14 8 10
10 8 10 23 14 17 19 8
14 16 16 19 9 10 7 8
15 9 16 12 7 12 10 11
16 13 11 18 13 5 6 4
17 13 12 13 14 23 29 17
18 7 12 11 16 10 8 10
19 12 9 16 14 10 9 13
21 14 15 14 16 13 16 11
22 11 12 13 10 16 14 24
23 13 14 10 9 12 14 10
24 7 8 13 6 10 20 20
25 13 15 11 11 11 10 7
26 8 8 6 6 13 15 15
27 8 7 6 9 5 8 9
29 10 14 16 8 9 6 7
30 22 23 21 20 17 16 16
31 10 10 10 6 8 9 10
_______________________
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 911 (1997 Jun 22 - Jun 28)
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)
| | | | | | |
|___ |__ |_______ |_______ |___ |___ |__
ALBH 1.0 3.48 -64.5 39.0 5.00 3.20
ALGO* 7.0 358. -2.17 48.0 5.50 2.99
AREQ 2.0 99.7 -1.11 37.5 5.00 2.36
ASC1 6.0 80.9 -1.44 61.3 5.35 1.71
BAHR 7.0 .678 128. 53.6 5.31 3.79
BRAZ .9 101. -1.24 51.0 5.00 2.38
CAS1 6.9 16.4 .346e+04 40.2 5.89 2.18
CHAT 7.0 104. -1.40 78.1 5.30 2.62
COCO 4.9 .719e+06 -.565e+04 34.6 7.53 3.29
CRO1 7.0 341. -1.41 49.5 6.59 2.09
DGAR 4.7 .207e+04 -1.96 54.8 6.22 1.82
FAIR* 7.0 .621 -.944 57.9 5.59 2.33
FLIN 1.0 89.5 -.897 49.0 5.00 2.84
FORT 4.6 459. -.233 49.8 6.44 3.02
GOL2* 2.7 31.6 -.752 57.0 4.40 2.23
GUAM 7.0 116. -1.40 74.8 8.01 2.43
HARV 3.0 .874e+07 .150e+05 69.0 5.00 2.73
IISC 1.8 78.3 -.861 67.5 6.52 2.47
IRKT 6.8 17.6 -1.49 67.6 5.04 2.31
KERG 7.0 141. -4.55 . 5.73 2.47
KIT3 5.8 135. -1.49 54.4 5.17 2.76
KOKB* 6.7 75.6 -1.37 71.1 6.48 1.78
KOSG* 7.0 10.1 -22.7 43.5 4.46 2.57
KWJ1 7.0 102. -1.39 55.2 7.02 1.68
LHAS 4.0 93.2 -1.59 46.3 5.00 1.73
MAC1 6.8 83.9 -1.39 30.8 4.04 2.34
MAD2 2.9 248. -1.46 98.8 6.00 2.03
MADR* 6.7 .215 -1.21 . 6.53 2.34
MALI 7.0 20.7 -516. . 9.30 2.35
MAS1 4.0 113. -1.58 42.3 4.53 2.16
MCM4 7.0 100. -1.39 32.2 4.31 1.89
MDO1 1.0 12.5 -1.00 35.0 6.00 2.72
MDVO 2.9 .400e+05 298. 70.0 7.00 1.88
MKEA 6.0 .901e-01 -1.67 41.3 5.35 2.64
MOIN 7.0 96.1 -1.40 62.3 6.77 1.92
NLIB 1.0 . . 58.0 5.00 2.64
PERT 7.0 2.64 -4.32 54.7 5.34 2.71
REYK 6.0 80.0 -1.49 56.5 6.17 2.22
SANT* 4.5 .199e+04 -2.75 35.9 5.65 1.46
STJO 1.0 3.01 -.963 40.0 4.00 2.95
TAHI 6.9 133. -1.41 73.5 5.89 2.06
THU1 6.9 76.6 -1.40 45.6 5.14 2.44
TID2* 6.9 .161 -1.43 37.3 5.15 2.81
TOUL 4.0 .560 -1.65 62.9 5.27 2.78
USUD 7.0 .929 -.330 37.9 5.62 2.65
WTZR* 6.9 .513 -1.96 60.2 5.00 2.57
WUHN 4.9 7.94 -.504e+04 48.6 6.06 2.94
YAR1* 7.0 6.77 3.87 . 4.34 2.37
YELL* 7.0 52.0 -1.74 43.4 4.73 1.80
PRN01 7.0 79.3 21.2 56.0 6.01 2.19
PRN02 7.0 81.8 -378. 58.2 5.60 2.35
PRN03 7.0 80.7 25.1 56.0 5.87 2.45
PRN04 6.8 81.3 32.4 53.4 6.00 2.16
PRN05 6.8 79.9 99.7 54.6 5.45 2.36
PRN06 6.8 82.2 -1.50 53.4 6.16 2.32
PRN07 6.9 81.6 747. 58.1 5.87 2.13
PRN09 6.9 82.5 -3.26 55.2 5.87 2.26
PRN10 6.8 82.0 8.33 56.5 6.00 2.32
PRN14 6.9 84.5 18.4 55.1 5.76 2.29
PRN15 7.0 3.47 438. 54.3 5.73 1.99
PRN16 6.9 80.9 15.7 55.9 5.59 2.38
PRN17 7.0 84.0 -153. 54.2 5.87 2.21
PRN18 7.0 79.1 .596e-01 49.2 5.87 2.47
PRN19 7.0 80.9 54.5 53.0 5.87 2.18
PRN21 6.9 81.7 61.4 54.5 6.00 2.34
PRN22 6.4 .243e+05 380. 51.5 5.64 2.35
PRN23 6.9 82.6 -.505 55.2 6.00 2.49
PRN24 6.8 82.0 596. 54.9 5.87 2.11
PRN25 7.0 80.8 -6.96 52.2 6.00 2.20
PRN26 7.0 82.5 -198. 54.9 5.87 2.47
PRN27 7.0 79.8 31.9 51.1 6.00 2.36
PRN29 7.0 81.2 143. 54.2 5.15 2.69
PRN30 6.7 80.8 -65.3 54.7 5.45 2.37
PRN31 7.0 81.0 448. 54.2 5.73 2.34
_______________________
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
97 6 22 97 6 23 97 6 24 97 6 25 97 6 26 97 6 27 97 6 28
prn 3d rss (cm)
1 451 311 260 262 250 238 248
2 544 325 516 253 443 341 422
3 474 422 309 322 293 299 281
4 1094 711 428 403 963 481 453
5 590 646 540 494 444 583 630
6 583 754 914 759 670 567 810
7 506 236 450 324 267 493 1190
9 433 241 263 281 502 186 511
10 388 382 435 414 396 411 692
14 591 438 573 514 822 757 395
15 308 372 317 418 324 370 267
16 479 379 534 431 327 533 584
17 271 405 318 306 437 336 303
18 463 588 589 877 762 463 363
19 200 245 312 443 191 417 218
21 406 344 274 392 394 513 465
22 520 570 543 455 457 411 582
23 1196 1112 990 618 694 579 488
24 483 681 405 401 372 450 487
25 647 650 692 495 470 478 650
26 204 225 349 194 232 544 1015
27 239 334 495 429 313 388 335
29 356 352 438 666 886 548 645
30 386 245 449 518 350 156 246
31 284 309 253 297 706 668 410
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: albh algo areq asc1 bahr braz cas1 chat coco cro1 dgar fair flin fort gol2 guam harv iisc irkt kerg kit3 kokb kosg kwj1 lhas mac1 mad2 madr mali mas1 mcm4 mdo1 mdvo mkea moin nlib pert reyk sant stjo tahi thu1 tid2 toul usud wtzr wuhn yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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