Date: Tue, 29 Aug 2000 14:51:56 -0700 (PDT) From: David C Jefferson Message-Id: <200008292151.OAA03071@bierman.jpl.nasa.gov> To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov Subject: [IGSREPORT-7488] Wk 1075 JPL Analysis Report Sender: owner-igsreport Precedence: bulk ****************************************************************************** IGS Electronic Report 29 Aug 14:51:57 PDT 2000 Message Number 7488 ****************************************************************************** Author: D C Jefferson ****************************************************************************** JPL ANALYSIS REPORT GPS-WEEK 1075 (DAYS 226-232, DATES 2000 Aug 13 - Aug 19) ****************************************************************************** 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/1075. These files (except for *.tro) have also been sent to the CDDIS. ______________________________________________________________________________ filename contents ______________________________________________________________________________ jpl10757.sum This text file. jpl10757.erp Earth rotation parameters for GPS week 1075. jpl10757.snx Ground station coordinates for GPS week 1075, SINEX format. jpl1075[0-6].sp3 GPS ephemerides for GPS week 1075, sp3 format. jpl1075[0-6].tro Ground station troposphere estimates for GPS week 1075. jpl1075[0-6].clk GPS and ground station clocks for GPS week 1075, RINEX. ______________________________________________________________________________ Median Orbit Repeatability (see table below): 8.0 cm A large clock discontinuity (reset) of about 1.95 microseconds was detected for PRN16 at approximately 14:35 on day 227. Also, the drift of the clock onboard this satellite experienced two shifts this day; these were detected to be from about +15 ps/s to +9 ps/s at approximately 10:15, and then to +3 ps/s at approximately 23:15. 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: FAIR (not USNO) used as reference clock day 228. WARNING: Data from PRN28 excluded the entire GPS week 1075. WARNING: Data from PRN10, DGAR, ESTI, HARK, TORP, WTZT excluded day 226. WARNING: Data from AMMN, BILL, MAS1, NTUS, PETP, TEGU, WTZT, WUHN excluded day 227. WARNING: Data from CASA, HARV, NTUS, PETP, WTZT, WUHN excluded day 228. WARNING: Data from AMMN, CASA, HARV, MALI, NOUM, NYAL, PETP, WTZT, WUHN excluded day 229. WARNING: Data from CASA, MALI, NTUS, RAMO, SFER, TEGU, WTZT excluded day 230. WARNING: Data from PRN15, CASA, GRAZ, MKEA, NANO, SFER, YELL excluded day 231. WARNING: Data from GRAZ, NTUS, ZIMM excluded day 232. 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 1075 (2000 Aug 13 - Aug 19) 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 51769.50 74527 245511 1799304 2392 34 34 121 121 42 0 26 -1384 -76 51770.50 73176 245114 1796831 2553 31 35 118 118 42 0 27 -786 -378 51771.50 72377 244428 1794094 2921 29 33 116 116 42 0 27 -711 -430 51772.50 71808 244353 1791204 2859 29 34 113 113 42 0 27 -835 142 51773.50 70892 244293 1787946 3658 29 34 117 117 42 0 27 -1649 -371 51774.50 69931 244285 1784129 3976 31 37 117 117 42 0 26 -1226 183 51775.50 68449 244267 1780149 3983 31 37 125 125 42 0 27 -1703 -319 END ERP TABLE The following table indicates the "3-dimensional orbit repeatability", as defined in IGS Mail Message 37, for GPS week 1075: ["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)] JPL ORBIT REPEATABILITY TABLE GPS week 1075 (2000 Aug 13 - Aug 19) 00 8 13 00 8 14 00 8 15 00 8 16 00 8 17 00 8 18 00 8 19 prn 3d rss (cm) 1 5 15 6 8 8 5 4 2 5 9 6 8 8 9 6 3 7 7 8 10 6 12 9 4 4 8 7 6 8 5 5 5 4 6 6 6 4 10 5 6 7 4 8 9 9 13 4 7 4 12 6 5 4 6 6 8 5 5 7 7 10 7 5 9 4 6 6 9 8 7 6 10 11 6 6 10 7 7 11 15 13 10 14 8 10 13 13 6 8 7 7 11 12 5 15 17 13 12 23 22 4 16 6 6 9 9 10 9 7 17 12 11 8 10 14 13 8 19 8 12 8 8 12 9 5 20 7 11 6 8 8 6 4 21 15 14 8 9 9 10 8 22 5 5 5 5 5 4 5 23 19 10 21 14 23 16 21 24 7 10 10 9 13 14 7 25 12 8 8 8 10 7 7 26 4 5 8 6 9 10 6 27 6 6 7 8 11 6 6 29 5 11 13 7 10 7 7 30 4 5 3 4 5 6 6 31 10 10 9 10 14 7 9 _______________________ 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 1075 (2000 Aug 13 - Aug 19) 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 .113 .678 35.7 4.77 3.36 ALIC 1.0 90.3 -.163e-01 49.0 5.00 3.98 AREQ* 6.0 .914e+04 30.9 27.2 4.84 3.77 ARTU 5.9 15.7 -.853e-01 37.0 5.18 2.61 ASC1 4.6 38.2 .267e-02 82.2 5.61 3.05 AUCK* 5.8 42.3 .138e-01 51.0 4.46 1.23 BAHR* 5.8 .605 785. 31.0 5.54 3.52 BARB 6.0 25.2 -.902e-01 26.3 7.85 3.11 BJFS 2.0 1.20 841. 18.5 6.00 3.32 CHAT* 1.0 23.1 -.157e-02 89.0 5.00 2.62 CIC1 4.0 46.4 -.102e-02 57.0 5.00 2.76 COCO 3.9 14.9 .805e-02 35.3 6.29 4.00 CRO1 1.0 .758e-01 -1.32 59.0 5.00 2.75 DAV1* 4.9 15.6 .463e-02 75.5 4.00 1.33 DGAR 4.9 40.8 .227e-02 35.5 5.62 2.80 EISL 5.9 42.7 -.894e-02 74.8 5.90 2.84 FAIR* 7.1 .107 -.581e-01 26.2 5.30 2.24 FORT* 5.5 1.34 .366 91.8 5.00 1.91 GALA 3.0 30.1 -.999e-01 33.3 5.00 4.40 GODE* 1.0 13.7 .183e-01 38.0 7.00 2.83 GUAM* 7.0 24.7 -.131 47.8 8.76 3.00 HOB2* 3.9 .106 -18.1 34.7 4.79 3.02 HOLB 2.0 83.6 231. 36.5 3.54 3.21 HRAO 5.0 .237e+06 346. 78.2 4.42 3.33 IISC 1.9 59.5 -.491e-01 84.5 5.00 1.85 INEG .9 .290e+06 -.842 57.0 4.00 .822 IRKT* 5.8 .578 .270e+04 65.9 4.84 2.68 ISTA 1.0 20.2 -.990e-01 24.0 5.00 3.12 JAB1 4.8 28.8 -.115 58.2 5.42 2.95 KELY 3.9 21.0 -.171e-02 73.2 6.00 1.61 KERG* 5.8 .289e+06 503. 47.7 5.67 2.42 KOKB* 7.0 .101 -2.35 53.0 5.89 2.99 KOUR* 1.0 27.8 -.109 89.0 6.00 4.06 KWJ1* 4.4 .647e+06 -58.4 54.0 6.33 .927 LHAS* 6.5 .111e+04 .539e-01 34.0 5.00 3.57 MAC1* 5.7 15.7 -.905e-01 32.4 4.00 2.34 MAD2 2.0 .200 .627 41.5 5.00 2.59 MAG0 6.0 13.6 -.816e-01 43.9 5.18 2.70 MALI* 4.9 .488e+05 -138. 95.0 7.00 1.62 MANA 3.0 .287e+06 503. 97.0 7.68 2.14 MAS1* 2.0 2.11 .342 29.5 4.53 3.87 MAW1 1.0 21.3 .315e-02 35.0 4.00 1.83 MCM4* 6.8 .502e+04 11.3 61.5 5.17 1.10 MDO1* 1.0 25.1 -6.59 63.0 5.00 2.57 NKLG 5.6 .280e+06 506. 70.2 7.00 1.70 NOTO 1.0 .580e-01 80.8 66.0 6.00 2.67 NOUM 2.0 .294e+06 508. 83.6 5.00 2.00 NTUS 1.5 173. -.844e-02 60.5 6.52 .625 NYA1 6.9 .147 -.430 33.9 4.00 2.00 ONSA* 5.7 9.69 -.447e-01 44.5 4.54 2.70 PETP 1.0 15.8 -.750e-01 46.0 6.00 3.24 PIE1* 1.0 .645e-01 -.262 63.0 5.00 2.98 PIMO 3.0 43.2 .590e-02 99.0 5.67 1.77 POL2 1.0 21.9 -.824e-02 57.0 4.00 2.68 RIOG 6.8 15.2 -.708e-01 32.1 4.62 2.76 SANT* 6.2 158. .610e-01 27.3 5.21 1.62 SELE 1.0 57.4 .365e-02 62.0 4.00 3.11 SFER 2.9 .615 152. 86.5 4.71 2.46 STJO 3.0 3.18 .515 31.1 5.42 3.36 SUTH 2.0 29.9 .409e-02 73.1 4.00 2.77 SYOG .9 .287e+06 495. 47.0 5.00 2.14 TEGU 1.0 .290e+06 509. 87.0 8.00 1.73 THTI 5.8 .289e+06 504. 79.2 6.35 2.19 TIDB* 7.0 .169 522. 34.2 5.31 3.65 TRAB 1.8 15.1 .313e-01 44.9 6.00 3.07 TSKB* 7.0 .103e+04 -.837e-01 66.7 4.61 2.98 UCLU 1.0 38.6 -.141e-02 53.0 6.00 2.84 USNO 6.4 . . 47.7 6.18 3.59 USUD 3.0 .121 -.569 52.4 5.36 2.13 WTZR* 5.8 41.3 -.294 53.8 5.33 3.01 WUHN 2.0 40.4 -.126 81.5 7.50 3.53 YAKZ 1.0 12.8 -.973e-01 53.0 5.00 2.81 YAR1* 6.8 319. .372 60.7 4.37 2.12 YELL* 6.0 .919e+04 -26.0 43.5 4.85 1.90 PRN01 7.0 3.73 141. 50.6 5.31 2.56 PRN02 7.0 2.51 -256. 55.2 5.16 2.30 PRN03 7.0 3.05 31.4 51.9 5.16 2.40 PRN04 6.8 1.09 331. 52.9 5.30 2.35 PRN05 7.0 3.24 261. 53.8 5.16 2.42 PRN06 7.0 7.86 -.252e-02 53.7 5.45 2.36 PRN07 7.0 1.84 136. 55.4 5.16 2.31 PRN08 7.0 2.56 399. 51.4 5.16 2.27 PRN09 7.0 2.31 -3.88 52.0 5.59 2.19 PRN10 6.0 2.41 55.3 54.4 5.18 2.56 PRN11 7.0 .370 537. 55.6 6.00 2.19 PRN13 7.0 .889 -825. 55.5 5.00 2.40 PRN15 5.8 3.64 848. 54.3 6.09 2.14 PRN16 6.6 172. .418e-01 51.2 4.87 2.14 PRN17 6.9 4.45 -269. 55.9 5.58 2.29 PRN19 7.0 4.58 262. 50.4 5.59 2.31 PRN20 7.0 .418 -67.3 52.9 5.74 2.54 PRN21 7.0 3.48 14.4 53.0 5.16 2.48 PRN22 7.0 3.59 201. 54.3 5.30 2.45 PRN23 7.0 3.76 14.2 54.9 6.00 2.43 PRN24 6.7 .765 776. 50.0 5.78 2.40 PRN25 7.0 2.47 7.46 52.8 5.45 2.48 PRN26 7.0 .740 538. 53.1 5.31 2.31 PRN27 7.0 3.88 28.3 49.3 5.00 2.28 PRN29 7.0 1.03 711. 51.9 5.45 2.41 PRN30 7.0 1.70 -33.4 52.6 5.16 2.36 PRN31 7.0 2.50 7.73 52.7 5.16 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 00 8 13 00 8 14 00 8 15 00 8 16 00 8 17 00 8 18 00 8 19 prn 3d rss (cm) 1 395 452 344 348 452 423 435 2 483 327 358 263 363 732 538 3 554 522 421 315 233 255 251 4 504 270 250 244 263 420 651 5 599 455 505 433 628 727 312 6 431 500 442 405 527 519 518 7 181 186 266 274 258 181 197 8 208 211 187 417 217 225 179 9 238 714 217 323 235 241 307 10 508 582 350 388 474 644 11 314 371 607 180 193 297 240 13 249 366 420 387 231 298 365 15 1359 2911 276 423 528 886 16 909 1021 6715 436 298 495 948 17 528 469 248 300 297 395 319 19 221 405 266 216 401 1026 276 20 475 483 318 211 387 340 230 21 432 260 184 390 263 274 511 22 328 492 285 282 242 267 250 23 550 816 524 745 340 544 422 24 679 1399 388 1238 294 1018 484 25 448 436 381 362 343 340 332 26 363 1010 707 1046 374 489 443 27 507 583 385 368 433 662 382 29 766 570 449 498 662 542 412 30 328 391 406 241 176 212 492 31 258 189 282 332 311 294 384 _______________________ END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES global: algo alic areq artu asc1 auck bahr barb bjfs chat cic1 coco cro1 dav1 dgar eisl fair fort gala gode guam hob2 holb hrao iisc ineg irkt ista jab1 kely kerg kokb kour kwj1 lhas mac1 mad2 mag0 mali mana mas1 maw1 mcm4 mdo1 nklg noto noum ntus nya1 onsa petp pie1 pimo pol2 riog sant sele sfer stjo suth syog tegu thti tidb trab tskb uclu usno usud wtzr wuhn yakz yar1 yell