[IGSREPORT-4430] Wk 0935 JPL Analysis Report
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D
Mon Dec 22 14:52:04 PST 1997
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IGS Electronic Report Mon Dec 22 14:52:04 PST 1997 Message Number 4430
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Author: D C Jefferson
Subject: Wk 0935 JPL Analysis Report
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JPL ANALYSIS REPORT GPS-WEEK 0935 (DAYS 341-347, DATES 1997 Dec 07 - Dec 13)
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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 (128.149.70.41),
directory pub/jpligsac/0935. These files (except for *.tro) have also
been sent to the CDDIS.
______________________________________________________________________________
filename contents
______________________________________________________________________________
jpl09357.sum This text file.
jpl09357.erp Earth rotation parameters for GPS week 935.
jpl09357.snx Ground station coordinates for GPS week 935, SINEX format.
jpl0935[0-6].sp3 GPS ephemerides for GPS week 935, sp3 format.
jpl0935[0-6].tro Ground station troposphere estimates for GPS week 935.
______________________________________________________________________________
Median Orbit Repeatability (see table below): 9.0 cm
According to the file gpsn4.txt obtained from tycho.usno.navy.mil, PRN24
was scheduled unusable day 344 for repositioning. Data from this satellite
did not meet our intial orbit convergence criteria on this nor the following
day (345) and have been excluded from both days' analyses accordingly. Data
from PRN08 were mismodeled day 347 and have been also excluded accordingly.
A large clock discontinuity (reset) of about 60 microseconds was detected for
PRN04 at approximately 18:50 on day 342.
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: MKEA (not ALGO) used as reference clock days 344 and 345.
WARNING: Data from PRN08 deweighted days 341-367, excluded day 347.
WARNING: Data from PRN13 deweighted the entire GPS week 935.
WARNING: Data from PRN24 excluded days 344 and 345 due to a maneuver.
WARNING: Data from HOB2, KSTU excluded day 341.
WARNING: Data from IISC, KELY, ROCH, USNA excluded day 342.
WARNING: Data from NTUS, SANT excluded day 343.
WARNING: Data from HOB2, KOKB, SANT excluded day 344.
WARNING: Data from ROCK excluded day 346.
WARNING: Data from SANT excluded day 347.
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 935 (1997 Dec 07 - Dec 13)
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
50789.50 16282 21130 253382 1815 3 3 8 8 37 11 27 -218 -208
50790.50 16039 20964 251533 1883 3 3 8 8 37 10 27 -203 -209
50791.50 15800 20780 249650 1883 3 3 8 8 37 10 27 -219 -189
50792.50 15597 20623 247783 1851 3 4 9 9 37 9 26 -156 -184
50793.50 15454 20432 245929 1858 3 4 9 9 37 10 26 -165 -185
50794.50 15308 20278 244064 1871 3 4 8 8 37 9 27 -193 -185
50795.50 15105 20145 242231 1795 3 3 8 8 37 9 26 -243 -191
END ERP TABLE
The following table indicates the "3-dimensional orbit repeatability", as
defined in IGS Mail Message 37, for GPS week 935:
["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)]
JPL ORBIT REPEATABILITY TABLE GPS week 935 (1997 Dec 07 - Dec 13)
97 12 7 97 12 8 97 12 9 97 12 10 97 12 11 97 12 12 97 12 13
prn 3d rss (cm)
1 13 12 14 12 14 10 5
2 6 8 9 7 8 8 6
3 10 6 8 6 7 10 8
4 10 9 11 7 10 24 17
5 8 9 12 10 10 7 6
6 7 8 7 6 7 9 7
7 13 8 8 12 10 7 10
8 41 48 42 54 57 49
9 6 5 4 7 7 5 4
10 5 8 14 10 7 6 8
13 33 37 30 44 36 28 35
14 9 10 9 24 19 29 27
15 11 7 8 13 12 9 9
16 8 11 13 7 10 18 17
17 8 8 7 7 10 8 7
18 9 9 6 7 9 8 17
19 9 8 8 10 8 11 7
21 15 6 7 10 13 16 8
22 8 9 12 7 11 16 13
23 16 8 9 9 7 9 7
24 8 7 11 10 11
25 17 15 12 10 25 21 11
26 9 8 5 6 8 8 8
27 8 9 6 6 5 6 6
29 8 10 9 7 6 6 9
30 6 6 9 8 8 8 8
31 11 6 9 6 10 10 6
_______________________
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 935 (1997 Dec 07 - Dec 13)
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 .867e-01 2.35 48.2 4.00 3.02
ANKR .9 154. .251 54.0 4.00 3.10
AREQ 5.9 99.3 -1.22 52.6 4.36 2.10
ASC1 6.5 .137e+05 -1.53 68.5 4.75 1.57
BAHR 6.0 .481 233. 43.0 4.85 3.13
BRUS 2.0 .133 -2.10 62.0 4.54 2.65
CAS1 6.8 .260e+04 80.0 37.1 5.46 1.28
CASA 2.0 9.46 197. 30.0 3.54 2.47
CHAT 6.9 113. -1.27 75.2 5.15 2.61
CICE 1.0 92.1 -1.69 32.0 5.00 2.68
COCO 6.9 .100e+07 -.275e+04 42.4 4.75 2.94
CRO1 7.0 393. -1.26 44.6 5.31 1.83
DGAR 6.7 500. -1.23 75.6 5.59 1.44
EISL 7.0 124. -1.25 54.4 5.60 2.70
FAIR* 7.0 .104 -1.83 34.3 4.35 2.10
FORT 6.9 16.4 -4.03 68.9 6.15 1.56
GODE 1.0 .664e-01 .480e-01 50.0 4.00 2.18
GOL2* 7.0 22.4 -1.43 75.6 4.19 2.02
GUAM 6.9 142. -1.25 54.4 6.60 2.31
HARK 1.9 25.2 3.67 61.3 5.55 2.98
IISC 5.9 91.1 -1.18 67.5 5.36 2.17
IRKT 5.7 .130 -1.85 47.9 4.00 2.36
KERG 1.9 108. 914. . 5.00 2.67
KIRU 2.8 .307e+04 -1.74 52.6 6.37 1.88
KIT3 .9 107. .241 57.0 4.00 2.84
KOKB* 4.7 209. -1.13 64.1 4.71 1.26
KOSG* 6.9 4.67 -23.2 40.7 4.00 2.43
KWJ1 6.8 116. -1.27 62.7 6.59 1.66
LPGS 4.9 746. -1.50 65.6 5.41 2.60
MAC1 4.4 94.8 -1.42 45.1 4.00 2.53
MAD2* 6.9 554. -.885 69.2 5.59 1.97
MCM4 7.0 105. -1.24 52.3 4.71 1.12
MKEA 6.9 .604e-01 -2.09 47.1 4.74 2.58
MOIN 5.8 188. -1.12 63.8 7.50 1.58
NICO 1.0 76.5 -1.91 30.0 4.00 2.61
NOTO 1.0 .110 -4.84 31.0 5.00 2.76
OHIG 6.8 .249e+05 -.384 63.3 4.90 1.73
PERT 4.0 1.88 -9.33 50.8 4.26 2.62
POL2 5.8 87.9 -1.53 51.9 3.84 2.59
REYK 7.0 77.6 -1.24 57.1 6.30 2.05
SANT* .8 .265e+04 9.77 44.0 4.00 1.58
STJO 3.9 .371e+07 -590. 44.8 4.55 2.14
TAHI .9 .168e+05 2.79 89.0 6.00 2.22
THU1 6.9 76.9 -1.27 45.7 5.58 2.33
TID2* 6.9 .995e-01 -1.26 40.4 5.46 2.75
TSKB 1.0 2.40 -.680 46.0 5.00 2.50
USUD 5.9 .808 -12.1 40.5 4.88 2.74
WTZR* 6.6 63.9 -.619 64.7 4.61 2.59
WUHN 5.9 10.9 -244. 47.2 4.53 2.43
XIAN .9 103. .260 55.0 4.00 2.98
YAR1* 4.9 230. -1.37 42.2 4.22 2.31
YELL* 6.9 4.49 -1.90 39.5 4.25 1.85
PRN01 7.0 81.6 33.2 55.4 5.00 2.14
PRN02 6.8 80.1 -434. 56.8 5.16 2.23
PRN03 7.0 80.8 77.6 54.3 5.00 2.18
PRN04 6.8 .561e+04 17.2 50.4 5.00 1.94
PRN05 6.8 80.4 125. 50.9 5.00 2.37
PRN06 7.0 83.2 -1.34 52.2 5.00 2.16
PRN07 7.0 82.3 762. 54.4 5.00 2.25
PRN09 7.0 81.5 -22.7 51.6 5.00 2.25
PRN10 7.0 83.2 14.8 53.9 5.00 2.16
PRN14 7.0 77.2 23.5 54.0 5.16 2.28
PRN15 7.0 3.64 498. 57.3 5.15 2.45
PRN16 7.0 82.9 38.6 59.1 5.15 2.40
PRN17 7.0 80.8 -168. 57.2 5.00 2.12
PRN18 7.0 79.7 7.06 54.6 5.00 2.28
PRN19 7.0 79.3 330. 53.9 5.00 2.28
PRN21 7.0 80.8 8.89 56.9 5.30 2.14
PRN22 6.5 80.8 33.2 52.3 5.00 2.01
PRN23 7.0 78.9 5.68 55.7 5.15 2.27
PRN24 5.0 83.8 778. 52.0 5.00 2.29
PRN25 6.9 79.9 -7.90 52.7 5.00 1.97
PRN26 7.0 79.4 -53.3 51.3 5.00 2.13
PRN27 7.0 79.6 9.31 53.0 5.00 2.63
PRN29 7.0 80.4 89.8 54.0 5.00 2.44
PRN30 6.7 80.5 -15.7 52.4 5.00 2.28
PRN31 7.0 81.0 -.735 57.9 5.00 2.45
_______________________
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 12 7 97 12 8 97 12 9 97 12 10 97 12 11 97 12 12 97 12 13
prn 3d rss (cm)
1 488 245 259 514 529 306 251
2 294 332 631 501 217 227 142
3 425 215 211 311 275 356 242
4 348 341 233 233 366 471 183
5 401 467 395 404 397 395 315
6 730 774 570 657 725 829 914
7 350 294 476 308 234 371 612
8 46096 62136 80294 99496
9 155 173 189 350 351 307 394
10 419 360 393 293 342 296 273
13 247 517 300 193 215 465 333
14 596 358 796 281 1554 433 478
15 197 367 512 423 272 225 199
16 976 450 502 322 403 866 979
17 493 633 448 438 406 324 523
18 301 243 270 371 309 235 251
19 634 288 510 354 201 841 538
21 277 581 241 410 401 378 730
22 604 466 324 655 448 495 1515
23 1060 1252 601 920 930 1107 665
24 311 297 167 566 404
25 541 725 660 378 172 368 415
26 223 283 421 197 234 305 328
27 221 434 385 330 320 396 166
29 160 332 484 801 185 224 612
30 267 255 363 259 301 525 343
31 210 305 191 170 209 360 521
_______________________
END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES
global: algo ankr areq asc1 bahr brus cas1 casa chat cice coco cro1 dgar eisl fair fort gode gol2 guam hark iisc irkt kerg kiru kit3 kokb kosg kwj1 lpgs mac1 mad2 mcm4 mkea moin nico noto ohig pert pol2 reyk sant stjo tahi thu1 tid2 tskb usud wtzr wuhn xian yar1 yell
[Mailed From: djeff at cobra.jpl.nasa.gov]
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