Date: Tue, 30 May 2000 15:03:58 -0700 (PDT) From: David C Jefferson Message-Id: <200005302203.PAA27512@cobra.jpl.nasa.gov> To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov Subject: [IGSREPORT-7218] Wk 1062 JPL Analysis Report Sender: owner-igsreport Precedence: bulk ****************************************************************************** IGS Electronic Report 30 May 15:04:03 PDT 2000 Message Number 7218 ****************************************************************************** Author: D C Jefferson ****************************************************************************** JPL ANALYSIS REPORT GPS-WEEK 1062 (DAYS 135-141, DATES 2000 May 14 - May 20) ****************************************************************************** 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/1062. These files (except for *.tro) have also been sent to the CDDIS. ______________________________________________________________________________ filename contents ______________________________________________________________________________ jpl10627.sum This text file. jpl10627.erp Earth rotation parameters for GPS week 1062. jpl10627.snx Ground station coordinates for GPS week 1062, SINEX format. jpl1062[0-6].sp3 GPS ephemerides for GPS week 1062, sp3 format. jpl1062[0-6].tro Ground station troposphere estimates for GPS week 1062. jpl1062[0-6].clk GPS and ground station clocks for GPS week 1062, RINEX. ______________________________________________________________________________ Median Orbit Repeatability (see table below): 10.0 cm We continue to exclude data from IGS stations that do not employ Dorne-Margolin style antennae (see IGS Report #6260). This week, we add two new candidate global stations. As with other sites, these sites 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) INEG (Aguascalientes, Mexico) -1260435.6702 -5788547.5545 2360340.1885 UNSA (Salta, Argentina) 2412830.4591 -5271936.7829 -2652209.1625 A large clock discontinuity (reset) of about 696 microseconds was detected for PRN08 at approximately 09:55 on day 137. Also, the drift of the clock onboard PRN16 experienced a shift from about +62 ps/s to -49 ps/s on day 136. 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: DRAO (not USNO) used as reference clock day 135. WARNING: NRC1 (not USNO) used as reference clock days 136, 137, and 139-141. WARNING: Data from PRN15 and PRN18 excluded the entire GPS week 1062. WARNING: Data from PRN03 excluded day 135. WARNING: Data from PRN03, PRN04 excluded day 136. WARNING: Data from PRN02 excluded day 138. WARNING: Data from PRN02, PRN07, PRN10, PRN21, PRN26 excluded day 139. WARNING: Data from PRN02, PRN06, PRN21, PRN26, PRN29 excluded day 140. WARNING: Data from PRN02, PRN17, PRn23, PRN26 excluded day 141. WARNING: Data from GOL2, MAD2, NOUM, TID2, WTZT excluded day 135. WARNING: Data from GOL2, MAD2, NOUM, TID2, TORP, WTZT excluded day 136. WARNING: Data from GOL2, MAD2, TID2, TORP, UNSA, WTZT excluded day 137. WARNING: Data from GOL2, MAD2, NYAL, QUIN, TID2, TORP, WTZT excluded day 138. WARNING: Data from CIT1, GOL2, MAD2, TID2, TIXI, USC1, WTZT excluded day 139. WARNING: Data from BILL, CIT1, CORD, DARW, GOL2, KELY, MAD2, QUIN, SOL1, TID2, USC1, USNO, WTZT excluded day 140. WARNING: Data from BILL, DARW, GOL2, MAD2, TID2, WTZT excluded day 141. 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 1062 (2000 May 14 - May 20) 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 51678.50 89788 329814 2106542 10196 32 34 135 135 42 0 24 462 205 51679.50 90344 329590 2096327 10234 31 34 130 130 42 0 23 626 -463 51680.50 90757 329107 2086072 10275 33 38 127 127 42 0 25 447 -608 51681.50 91265 328296 2075709 10451 38 43 170 170 42 0 24 172 -786 51682.50 91838 327483 2065115 10738 39 44 181 181 42 0 20 1011 -197 51683.50 92845 326898 2054482 10528 38 41 178 178 42 0 20 1335 66 51684.50 93594 326590 2044091 10254 37 39 173 173 42 0 21 1341 -209 END ERP TABLE The following table indicates the "3-dimensional orbit repeatability", as defined in IGS Mail Message 37, for GPS week 1062: ["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)] JPL ORBIT REPEATABILITY TABLE GPS week 1062 (2000 May 14 - May 20) 00 5 14 00 5 15 00 5 16 00 5 17 00 5 18 00 5 19 00 5 20 prn 3d rss (cm) 1 9 19 20 17 17 9 10 2 10 10 4 3 9 7 8 11 20 4 9 15 9 14 13 5 7 7 10 10 6 6 13 6 16 7 6 15 16 5 7 6 6 6 11 26 24 8 6 6 14 21 8 10 21 9 5 6 8 5 8 13 27 10 4 4 8 15 12 12 11 11 9 19 18 11 15 10 13 7 4 7 17 16 6 13 16 7 9 16 14 10 16 11 17 7 7 6 10 15 14 19 12 8 19 17 17 13 16 21 9 7 8 6 38 22 13 12 12 10 29 34 8 23 8 6 19 13 31 37 24 6 4 8 8 10 16 20 25 12 8 7 9 16 12 10 26 7 5 8 9 27 5 6 15 11 10 8 6 29 14 5 18 18 9 12 30 4 7 6 6 8 6 11 31 12 6 8 4 8 11 18 _______________________ 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 1062 (2000 May 14 - May 20) 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 76.1 2.87 44.0 4.00 3.31 ALGO* 7.0 .111 -3.20 36.2 4.17 3.13 AOML 1.0 58.9 -.776e-02 73.0 6.00 2.90 AREQ* 4.8 31.9 36.8 27.6 4.00 3.65 ARTU 7.0 17.4 -.980e-01 38.7 5.30 2.73 ASC1 5.4 215. -.330e-02 85.9 6.49 2.38 AUCK* 2.8 21.2 -.232e-02 61.2 4.39 2.76 BAHR 7.0 .566 449. 33.2 4.60 3.23 BJFS 2.0 1.04 610. 19.5 5.00 2.74 CEDU 1.0 20.8 .757e-02 47.0 4.00 3.38 CHAT* 1.0 25.4 .718e-02 88.0 6.00 2.88 CIC1 5.0 39.1 -.694e-02 62.8 4.26 2.80 CRO1 7.0 .191 -.442 42.1 4.61 3.11 DAV1* 7.0 15.7 -.331e-02 50.3 3.88 1.06 DGAR 6.8 32.4 -.696e-02 33.7 6.71 2.89 DRAO 1.0 . . 36.0 4.00 3.29 EISL 6.8 52.4 -.199e-01 74.5 4.65 2.52 FAIR* 7.0 .134 .773e-01 27.4 5.03 2.07 FORT* 5.1 1.40 -.496 94.5 6.04 1.72 GALA 6.2 37.5 -.112 38.9 4.74 3.85 GOUG 2.0 .290e+06 493. 59.5 5.52 3.39 GUAM* 6.9 31.7 -.143 40.5 7.46 3.31 HARK* 5.0 8.06 301. 66.5 4.62 3.44 HOB2* 3.9 .143 -28.2 35.2 5.05 3.01 HOLB 1.0 77.7 435. 35.0 4.00 3.15 HRAO 6.0 1.05 295. 78.2 4.39 3.30 IRKT* 5.8 .206 -.500 76.1 5.21 2.77 JAB1 4.9 33.3 -.138 59.6 4.83 3.35 KELY 1.0 19.5 .139e-01 75.0 6.00 1.55 KERG* 3.9 2.08 261. 47.3 5.00 3.24 KOKB* 7.0 .127 -2.47 41.8 5.47 3.48 KOUR* .9 30.5 -.103 41.0 6.00 4.42 KSTU 1.0 10.1 -.423e-02 34.0 5.00 3.46 LAMA 1.0 .119e+06 37.0 57.0 4.00 1.67 LHAS* 6.9 13.6 .630e-04 46.0 6.21 3.70 MAC1* 6.7 23.8 -.104 34.7 4.16 1.93 MAG0 1.0 13.4 -.862e-01 45.0 4.00 2.67 MALI 6.3 29.3 -513. . 7.91 1.49 MAS1* 1.9 122. .509e-02 28.0 4.00 3.55 MCM4* 1.9 26.1 134. 54.0 5.00 .979 MDO1* 2.0 19.5 -1.90 72.0 4.55 2.76 MEDI 1.0 .180 -.368 49.0 4.00 2.86 MKEA 4.0 1.16 591. 23.9 6.23 3.19 NICO .7 27.3 -.917e-02 25.0 6.00 3.70 NKLG 5.0 .288e+06 500. 76.0 7.19 1.69 NOTO 1.0 .161 91.9 64.0 6.00 3.06 NOUM 3.0 .282e+06 546. 78.3 5.00 2.08 NRC1 4.4 . . 47.7 4.00 2.10 NTUS 6.7 312. -.331e-01 68.0 8.08 2.02 NYA1 3.0 .162 -.212 28.8 4.00 1.60 NYAL 2.8 113. -.273 50.0 4.00 1.79 OHIG* 7.0 12.6 -.220e-02 64.8 5.29 2.61 ONSA* 5.8 10.8 -.577e-01 42.3 4.52 2.54 PETP 3.7 15.2 -.837e-01 46.3 5.84 2.83 REYK .9 33.9 -.697e-02 64.0 7.00 2.01 SANT* 6.5 55.9 .273 24.9 5.00 2.44 SELE 1.0 60.6 -.149e-01 69.0 4.00 2.73 SFER 3.9 .578 92.7 77.4 4.30 2.68 STJO 2.0 3.72 .329 32.6 4.52 3.52 SYOG .9 .293e+06 503. 46.0 6.00 1.37 THTI 5.0 .289e+06 501. 74.0 5.65 2.97 THU1* 2.0 17.7 -.663e-02 51.5 6.52 1.90 TID1 2.0 .133 -.387 31.5 5.52 3.09 TIXI 4.9 11.3 -.901e-01 42.2 4.89 2.67 TOW2 3.0 28.3 -.102e-01 19.7 4.36 3.87 TRAB 1.9 26.2 -.107 51.0 6.66 2.93 TSKB* 7.0 1.35 .572 66.4 4.51 3.16 USNO 1.0 . . 45.0 5.00 3.62 USUD 4.0 .641 -1.54 58.9 4.28 2.54 VESL 1.0 .290e+06 510. 41.0 4.00 2.51 VILL* 1.0 5.09 -.688 57.0 5.00 2.70 WTZR* 5.8 1.46 .495 54.8 5.20 2.98 WUHN 1.0 35.2 -.129e-01 74.0 6.00 2.78 YAR1* 6.8 144. .118 61.2 3.62 1.79 YELL* 7.0 .141 -.283e-02 40.8 4.15 1.75 PRN01 7.0 3.33 129. 49.6 5.15 2.42 PRN02 3.0 3.81 -215. 50.1 5.00 2.70 PRN03 5.0 2.05 4.14 49.7 5.00 2.52 PRN04 6.0 1.25 783. 54.9 5.55 2.39 PRN05 7.0 3.42 250. 54.5 5.00 2.57 PRN06 6.0 8.45 1.71 51.0 5.00 2.44 PRN07 6.0 1.98 176. 56.2 5.62 2.58 PRN08 6.9 .519e+05 305. 52.9 5.63 2.25 PRN09 7.0 1.59 -44.8 53.0 5.16 2.67 PRN10 5.7 2.22 51.0 57.0 5.19 2.25 PRN11 7.0 .433 354. 53.9 5.30 2.54 PRN13 7.0 1.37 -739. 57.2 5.16 2.39 PRN16 6.6 311. 250. 52.5 5.45 2.15 PRN17 6.0 4.35 -255. 52.5 5.00 2.57 PRN19 7.0 4.53 179. 53.6 5.00 2.66 PRN21 4.8 3.16 8.81 48.2 5.43 2.57 PRN22 7.0 1.21 312. 53.7 5.00 2.58 PRN23 5.8 4.51 10.3 55.3 5.88 2.72 PRN24 7.0 .659 726. 54.3 5.97 2.52 PRN25 7.0 1.96 5.60 53.2 5.00 2.50 PRN26 4.0 1.01 419. 54.1 5.27 2.66 PRN27 7.0 3.69 19.2 50.6 4.87 2.33 PRN29 6.0 .918 612. 53.4 5.00 2.54 PRN30 6.9 1.74 -21.4 55.8 5.00 2.53 PRN31 7.0 3.20 3.19 49.1 5.15 2.63 _______________________ 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 5 14 00 5 15 00 5 16 00 5 17 00 5 18 00 5 19 00 5 20 prn 3d rss (cm) 1 323 449 474 599 424 220 315 2 585 611 564 3 226 233 284 405 432 4 337 446 274 348 394 320 5 313 370 731 386 454 773 434 6 531 616 658 486 501 534 7 232 223 190 241 233 313 8 233 186 233 280 247 361 321 9 224 263 244 327 435 611 408 10 427 340 640 339 383 421 11 338 183 243 469 764 519 182 13 406 333 541 200 460 226 169 16 237 359 402 509 318 218 1007 17 316 368 358 319 223 279 19 676 572 152 360 226 177 406 21 280 475 306 407 230 22 313 313 289 384 384 388 239 23 288 279 391 478 1013 1469 24 617 498 556 369 327 469 526 25 562 792 848 278 287 326 360 26 180 273 233 511 27 529 453 377 334 497 350 233 29 383 546 501 696 749 914 30 396 384 402 421 411 261 235 31 379 186 351 379 548 314 531 _______________________ END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES global: albh algo aoml areq artu asc1 auck bahr bjfs cedu chat cic1 cro1 dav1 dgar drao eisl fair fort gala goug guam hark hob2 holb hrao irkt jab1 kely kerg kokb kour kstu lama lhas mac1 mag0 mali mas1 mcm4 mdo1 medi mkea nico nklg noto noum nrc1 ntus nya1 nyal ohig onsa petp reyk sant sele sfer stjo syog thti thu1 tid1 tixi tow2 trab tskb usno usud vesl vill wtzr wuhn yar1 yell