Date: Tue, 26 Sep 2000 14:44:42 -0700 (PDT) From: David C Jefferson Message-Id: <200009262144.OAA27826@kalman.jpl.nasa.gov> To: eisop@obspm.fr, igsreport@igscb.jpl.nasa.gov Subject: [IGSREPORT-7594] Wk 1079 JPL Analysis Report Sender: owner-igsreport Precedence: bulk ****************************************************************************** IGS Electronic Report 26 Sep 14:44:43 PDT 2000 Message Number 7594 ****************************************************************************** Author: D C Jefferson ****************************************************************************** JPL ANALYSIS REPORT GPS-WEEK 1079 (DAYS 254-260, DATES 2000 Sep 10 - Sep 16) ****************************************************************************** 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/1079. These files (except for *.tro) have also been sent to the CDDIS. ______________________________________________________________________________ filename contents ______________________________________________________________________________ jpl10797.sum This text file. jpl10797.erp Earth rotation parameters for GPS week 1079. jpl10797.snx Ground station coordinates for GPS week 1079, SINEX format. jpl1079[0-6].sp3 GPS ephemerides for GPS week 1079, sp3 format. jpl1079[0-6].tro Ground station troposphere estimates for GPS week 1079. jpl1079[0-6].clk GPS and ground station clocks for GPS week 1079, RINEX. ______________________________________________________________________________ Median Orbit Repeatability (see table below): 9.0 cm According to NANUs obtained from ftp://tycho.usno.navy.mil/pub/gps/gpstd.txt, PRN16 has been set unusable since day 209. No data were available for this satellite beginning day 259. A large clock discontinuity (reset) of about 800 microseconds was detected for PRN24 at approximately 18:35 on day 255. Also, the drift of the clock onboard this PRN07 experienced a shift from about -30 ps/s to +59 ps/s at approximately 19:30 on day 258. This week, we add a new candidate global station. As with other sites, this site is 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) GUAT (Guatemala City, Guatemala) -56063.4162 -6174977.8981 1596665.3149 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: ALGO (not USNO) used as reference clock days 254 and 255. WARNING: NRC1 (not USNO) used as reference clock day 258. WARNING: PIE1 (not USNO) used as reference clock days 259 and 260. WARNING: Data from PRN15 and PRN28 excluded the entire GPS week 1079. WARNING: Data from PRN08 excluded day 257. WARNING: Data from DRAG, GRAZ, NTUS, PETP, SPK1, ZECK, ZIMM excluded day 254. WARNING: Data from GRAZ, LBCH, NTUS, SPK1, THU1, WTZT, ZIMM excluded day 255. WARNING: Data from GODE, JAMA, LBCH, PETP, QUIN, WTZT excluded day 256. WARNING: Data from DHLG, GODE, LBCH, NTUS, PETP, RAMO, THU1 excluded day 257. WARNING: Data from DHLG, FLIN, GRAS, LBCH, PETP, WTZT excluded day 258. WARNING: Data from DHLG, MANA, NTUS, PETP, SPK1, WTZT excluded day 259. WARNING: Data from DGAR, MANA, PETP, WTZT excluded day 260. 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 1079 (2000 Sep 10 - Sep 16) 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 51797.50 30755 240288 1666238 3804 31 35 131 131 42 0 26 -2132 -661 51798.50 28743 240128 1662686 3299 29 33 133 133 42 0 26 -2417 -250 51799.50 26627 239686 1659525 3023 33 35 142 142 42 0 26 -3001 -128 51800.50 23547 239682 1656561 2905 29 33 141 141 42 0 25 -2979 -22 51801.50 20695 239833 1653206 3806 30 37 133 133 42 0 26 -2953 73 51802.50 17913 239934 1649305 3995 29 32 133 133 42 0 25 -2211 -380 51803.50 16116 239986 1644966 4684 33 36 146 146 42 0 25 -1980 -265 END ERP TABLE The following table indicates the "3-dimensional orbit repeatability", as defined in IGS Mail Message 37, for GPS week 1079: ["3d rss" = sqrt(xrms**2 + yrms**2 + zrms**2)] JPL ORBIT REPEATABILITY TABLE GPS week 1079 (2000 Sep 10 - Sep 16) 00 9 10 00 9 11 00 9 12 00 9 13 00 9 14 00 9 15 00 9 16 prn 3d rss (cm) 1 5 8 8 8 9 10 7 2 7 10 8 10 8 9 6 3 6 8 18 14 23 11 6 4 7 6 6 4 6 3 8 5 6 8 9 8 6 12 9 6 10 15 7 10 9 10 18 7 4 10 6 6 6 9 6 8 5 11 10 8 6 7 9 6 8 5 4 22 28 6 10 8 11 5 6 8 7 5 11 9 12 16 10 15 8 7 13 7 12 15 6 6 4 5 16 6 14 9 8 11 17 12 12 8 13 11 14 5 19 6 10 8 11 8 6 8 20 7 10 9 8 15 18 12 21 7 9 10 10 10 12 13 22 9 7 10 17 20 9 12 23 19 15 26 16 18 21 24 24 13 6 8 5 15 35 10 25 6 9 10 11 12 8 7 26 14 16 10 7 11 8 11 27 7 34 20 9 8 5 7 29 9 12 16 20 9 10 7 30 8 6 6 4 7 12 7 31 13 17 12 8 22 19 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 1079 (2000 Sep 10 - Sep 16) 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* 7.2 .122 1.22 35.9 4.91 3.41 AOML 1.0 16.6 -.470e-02 55.0 7.00 2.64 ARTU 6.9 .484e+04 .220e-01 35.1 4.76 2.30 ASC1 5.5 136. -.213e-01 71.3 5.85 2.28 AUCK* 7.0 18.3 -.252e-02 54.9 4.46 2.64 BAHR* 5.9 .591 785. 33.0 5.43 3.70 BARB 2.0 33.0 -.103 26.5 8.00 2.89 BJFS 1.0 2.67 688. 19.0 5.00 3.22 BRMU* 1.0 15.8 -.986e-02 56.0 6.00 2.71 CAS1* 1.9 11.8 -.657e-02 27.5 4.55 1.27 CIC1 1.9 72.2 -.447e-02 53.2 4.55 2.56 COCO 6.6 562. -.306e-01 30.0 6.60 3.29 CRO1 3.0 7.10 -.107e-02 58.0 4.70 2.68 DAV1* 5.7 15.2 -.740e-02 79.2 4.20 1.26 DGAR 5.8 60.1 -.152e-01 32.4 7.22 2.57 EISL 6.8 112. -.164e-01 75.2 5.15 2.42 FAIR* 7.0 .182 -.585 27.3 4.88 2.01 FORT* 7.0 19.0 .263e-01 97.6 6.31 1.81 GALA 6.7 31.8 -.114 24.9 5.34 3.24 GOUG .9 .288e+06 499. 61.0 5.00 2.98 HARV 1.0 33.7 -.126e-01 64.0 7.00 3.22 HOB2* 4.8 .424 -6.15 41.5 6.22 2.78 HOLB 1.0 135. 40.3 56.0 4.00 3.42 HRAO 7.0 .339e+04 775. 78.3 5.00 3.51 IISC 6.3 52.8 -.412e-01 84.3 6.43 1.64 IRKT* 6.8 .582 .366e-01 68.5 4.76 2.58 JAB1 6.7 72.0 -.118 59.7 5.48 2.81 JAMA 1.0 33.7 -.121 76.0 4.00 3.00 JPLM 1.0 18.4 272. 59.0 4.00 3.01 KELY 4.9 .138e+04 -.130 70.4 5.81 1.46 KERG* 7.0 .289e+06 501. 48.6 5.62 2.13 KOKB* 7.0 .166 -2.32 53.1 5.77 3.16 KOUR* 3.0 28.1 -.111 46.7 6.35 4.07 KUNM 4.6 69.0 -.435e-01 90.2 5.42 2.46 KWJ1* 5.6 .188e+07 369. 51.7 5.46 .944 LHAS* 2.0 16.6 .420e-04 34.5 5.52 3.29 MAC1* 6.7 16.1 -.105 32.9 4.33 2.27 MAG0 7.0 14.5 -.868e-01 45.0 4.73 2.67 MALI* 6.7 .303e+05 -51.8 . 7.61 1.65 MAS1* 2.0 2.45 .219 31.0 4.54 3.09 MCM4* 3.8 .819e+04 20.9 60.9 5.26 1.02 MDO1* 1.0 19.5 -1.71 63.0 5.00 3.12 NKLG 3.9 .282e+06 513. 71.7 7.00 1.68 NRC1 1.1 . . 42.0 5.00 3.71 NYA1 4.0 .119 -.983 31.6 4.60 1.61 NYAL* 3.0 .227 -.260 54.7 4.35 1.95 ONSA* 7.0 9.70 -.496e-01 45.1 4.30 2.51 PIE1* 1.8 . . 56.5 4.00 3.14 RAMO .9 27.8 -.996e-01 58.0 6.00 2.40 REYK 1.0 9.64 -.666e-02 56.0 6.00 2.18 RIOG 7.0 13.9 -.869e-01 34.4 4.00 2.78 SANT* 6.7 57.5 -.316e-01 34.5 5.16 2.43 SELE 3.9 52.6 -.135e-01 61.1 4.09 3.07 SFER 4.9 .537e+05 573. 72.9 4.82 2.31 STJO 3.0 4.83 .442 31.4 4.00 3.54 SYOG 1.9 .290e+06 494. 43.5 5.52 1.65 THTI 7.0 .289e+06 506. 82.9 6.31 2.10 TIDB* 7.0 .254 522. 31.8 5.61 3.54 TRAB 1.0 14.7 .372e-01 45.0 6.00 3.03 TSKB* 3.7 1.58 -.486 61.0 5.57 2.98 USNO 2.1 . . 48.5 6.00 3.80 USUD 6.0 .276 -1.65 41.8 5.02 2.14 WILL 1.0 3.22 6.42 30.0 4.00 2.77 WTZR* 7.0 88.0 -.338 55.4 5.02 2.89 WUHN 1.0 33.7 -.107 66.0 6.00 3.22 YAR1* 6.4 489. -.623e-01 54.3 4.51 1.91 YELL* 5.8 .185 .248 41.6 4.38 1.61 PRN01 7.0 4.23 144. 49.7 5.00 2.39 PRN02 7.0 2.80 -269. 51.6 5.00 2.44 PRN03 7.0 2.22 39.5 52.0 5.16 2.37 PRN04 6.8 1.07 414. 55.5 5.00 2.22 PRN05 7.0 3.87 265. 53.2 5.32 2.46 PRN06 7.0 6.49 .777e-03 51.5 5.30 2.34 PRN07 7.0 170. 77.2 54.8 5.00 2.38 PRN08 5.8 2.67 494. 49.5 5.00 2.22 PRN09 6.7 2.40 -7.76 52.7 5.60 2.13 PRN10 7.0 2.64 56.6 53.7 5.16 2.55 PRN11 7.0 .410 589. 52.3 5.59 2.29 PRN13 7.0 .807 -831. 56.7 5.16 2.24 PRN16 4.5 7.56 -10.0 54.8 5.00 2.14 PRN17 6.7 4.80 -273. 58.5 5.16 2.23 PRN19 6.8 4.56 289. 50.9 5.16 2.18 PRN20 7.0 .474 -57.0 53.7 5.00 2.46 PRN21 7.0 3.38 15.8 56.2 5.00 2.24 PRN22 7.0 1.20 278. 54.8 5.16 2.30 PRN23 7.0 4.05 15.4 56.8 6.30 2.47 PRN24 6.8 .853e+05 252. 50.3 5.73 2.37 PRN25 6.7 2.25 8.18 52.0 5.31 2.20 PRN26 7.0 .784 554. 52.6 5.31 2.25 PRN27 6.8 4.65 30.8 49.2 5.84 2.16 PRN29 7.0 .764 61.2 53.7 5.32 2.27 PRN30 7.0 1.79 -37.3 54.9 5.34 2.22 PRN31 7.0 2.68 11.0 54.7 5.16 2.28 _______________________ 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 9 10 00 9 11 00 9 12 00 9 13 00 9 14 00 9 15 00 9 16 prn 3d rss (cm) 1 389 384 683 433 609 446 437 2 315 370 341 180 296 450 197 3 360 289 242 271 288 216 319 4 650 700 647 510 582 518 728 5 464 868 491 555 748 979 451 6 505 515 644 611 583 524 716 7 284 250 273 383 323 217 200 8 456 530 502 416 376 359 9 334 758 508 323 326 403 372 10 363 352 368 383 438 439 402 11 219 600 215 703 772 322 211 13 401 293 340 338 358 392 669 16 703 566 439 328 372 17 280 403 324 414 595 414 224 19 483 502 455 488 572 743 323 20 256 293 469 647 439 587 454 21 296 317 198 263 303 333 287 22 521 306 625 206 408 306 438 23 794 947 840 913 923 1028 446 24 1116 722 449 647 798 740 485 25 554 701 584 581 645 537 402 26 298 510 339 393 170 269 171 27 817 671 624 598 727 734 636 29 557 546 571 481 650 634 287 30 683 314 439 423 257 398 546 31 370 685 654 436 325 253 230 _______________________ END COMPARISON OF BROADCAST NAVIGATION MESSAGE WITH PRECISE EPHEMERIDES global: algo aoml artu asc1 auck bahr barb bjfs brmu cas1 cic1 coco cro1 dav1 dgar eisl fair fort gala goug harv hob2 holb hrao iisc irkt jab1 jama jplm kely kerg kokb kour kunm kwj1 lhas mac1 mag0 mali mas1 mcm4 mdo1 nklg nrc1 nya1 nyal onsa pie1 ramo reyk riog sant sele sfer stjo syog thti tidb trab tskb usno usud will wtzr wuhn yar1 yell