****************************************************************************** dorisreport 21-Nov-2006 23:14:21 Message No 0737 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1397 = 06288 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1397 from 15-10-2006 to 21-10-2006 DORIS name (using day of start): 06288 Days of year: from 2006/288 to 2006/294 ============================================================== Author: Pascal Willis 1) Contacts =========== Email pascal.willis@ign.fr Phone 1-818-393-4748 FAX 1-818-393-4965 2) Products =========== All the following products are available at the CDDIS data center ftp cddis.gsfc.nasa.gov weekly sinex in free-network pub/doris/products/sinex_series/ignwd/ign06288wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06288wd04.snx.Z geocenter series pub/doris/products/geoc/ign03wd01.geoc.Z Earth Orientation Parameters time series pub/doris/products/eop/ign03wd01.eop.Z 3) Analysis Strategy ==================== The DORIS data have been processed using the Gipsy/Oasis software at the Jet Propulsion Laboratory Suggestions on which solutions should be used or not can be found in pub/doris/products/sinex_series/ign.snx.readme Complete description files can be found at CDDIS at weekly sinex in free-network pub/doris/products/sinex_series/ignwd/ignwd05.snx.dsc weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ignwd04.snx.dsc geocenter series pub/doris/products/geoc/ign03wd01.geoc.dsc Earth Orientation Parameters time series pub/doris/products/eop/ign03wd01.eop.dsc For references, the following papers are recommended : Willis, P., M. Heflin (2004), External validation of the GRACE GGM01C gravity field using GPS and DORIS positioning results, Geophys. Res. Lett., 31(13), L13616, DOI:10.1029/2004GL020038. Willis, P., C. Boucher, H. Fagard, Z. Altamimi (2005), Applications geodesiques du systeme DORIS a l'Institut Geographique National, Geodetic applications of the DORIS system at the French Institut Geographique National, C.R. Geoscience, 337(7), 653-662, DOI:10.1016/j.crte.2005.03.002. Last changes in the time series data analysis: Week 678 = 93003 : See DORISMail #0288, start of the time series Week 1281 = 04207 : Estimate DORIS wet tropospheric delay per measurement using a randomwalk approch (Psigma = 5 cm per day) no horizontal gradients used yet. See DORISMail #0345 Week 1287 = 04249 : Start using cumulative solution ign04d02 to perform the ITRF2000 transformation (when needed) Week 1293 = 04291 : Start using actual mass information for all satellites (as provided in the new *mass.txt files) instead of nominal values as before Week 1341 = 05261 : Do not estimate the constant term of the relativity correction (this is already done by CNES by modifying the on-board oscillator, exactly like for GPS). Use a cutoff angle of 15 degrees (before that, no cutoff angle was used but now CNES is delivering data at very low elevation. Do not estimate tropospheric correction as random walk anymore. Use 1 parameter per hour (maximum) + 2.5 cm@ 1d as constraint. 4) Global Statistics ==================== GPS week number 1397 from 15-10-2006 to 21-10-2006 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.90 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 15-10-2006 22593 7 22586 0.0 16-10-2006 22771 24 22747 0.1 17-10-2006 22640 30 22610 0.1 18-10-2006 22304 47 22257 0.2 19-10-2006 22029 24 22005 0.1 20-10-2006 22188 14 22174 0.1 21-10-2006 22457 12 22445 0.1 5) Individual Statistics per satellite ====================================== The following table includes all data that have been kept in the solution (after pre and post-processing) 5.1) Number of observations per satellite ----------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- ENVISAT 6402 6500 6458 6366 6237 6191 6465 SPOT2 4458 4330 4203 3947 4182 4503 4218 SPOT4 4816 4838 4862 4900 4741 4714 4747 SPOT5 6910 7079 7087 7044 6845 6766 7015 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.451 0.420 0.433 0.406 0.412 0.397 0.404 SPOT2 0.428 0.418 0.419 0.460 0.452 0.437 0.408 SPOT4 0.418 0.426 0.415 0.416 0.409 0.411 0.426 SPOT5 0.387 0.380 0.388 0.351 0.367 0.352 0.358 6) Individual Statistics per station ====================================== 6.1) Stations given in sinex solutions -------------------------------------- The following table includes all DORIS data that were used to generate the weekly DORIS sinex solutions o = station after a break in the DORIS time series day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- ADEB 1420 1440 1444 1461 1420 1466 1424 AMTB 548 540 549 521 566 553 563 ARFB 350 441 412 430 319 328 352 ASDB 352 338 346 330 292 373 350 CADB 390 437 336 499 333 468 426 CHAB 533 525 554 497 506 489 478 CICB 464 459 525 494 448 481 423 CROB 384 442 452 468 450 410 481 DIOB 511 446 446 432 437 443 468 DJIB 461 421 497 461 436 468 441 EVEB 324 280 213 270 282 293 277 FAIB o 998 1093 1029 1050 1080 1039 1044 FUTB 393 433 443 372 382 464 466 GAVB 230 204 232 266 247 217 222 GREB 485 503 489 518 533 519 511 HEMB 445 362 333 353 405 395 314 JIUB 492 529 609 248 0 328 499 KIUB 585 621 651 602 619 609 615 KOLB 559 511 565 615 565 585 508 KRUB 415 353 343 403 418 421 385 LICB 357 430 451 363 401 320 413 MAHB 329 336 428 378 342 301 363 MALB 437 444 375 426 430 443 425 MATB 574 599 507 568 558 522 583 METB 719 730 723 697 708 708 689 MIAB 443 399 449 476 453 363 488 MONB 530 567 538 557 496 514 519 MORB 417 420 538 516 453 528 444 NOWB 410 415 364 464 441 363 443 PAQB 460 447 459 378 443 491 451 PDMB 519 486 509 512 521 470 465 REUB 353 404 457 373 378 417 396 REZB 664 641 636 691 736 590 688 RIKB 141 177 143 143 88 146 136 RIPB 682 667 738 752 712 675 646 ROTB 1456 1441 1433 1406 1459 1455 1382 SANB 515 433 501 546 460 491 465 SCRB 431 481 411 390 455 454 430 SODB o 386 434 469 370 417 451 426 SPJB 1502 1535 1498 1476 1510 1458 1525 STJB 600 677 615 607 633 536 664 SYPB 1489 1457 1480 1474 1501 1551 1509 THUB 1350 1475 1251 1329 1344 1290 1357 TLHA 491 533 568 587 538 507 541 TRIB o 554 513 480 549 475 470 547 YASB 528 531 433 597 486 476 489 YELB 913 860 910 880 839 911 869 6.2) stations rejected from solution ------------------------------------ all available stations were processed and given in the output sinex solutions 6.3) statistics per station and per satellite (stations in sinex) ----------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- ADEB 3880 1674 1691 3159 AMTB 1434 600 859 1190 ARFB 990 405 540 864 ASDB 896 427 536 713 CADB 1027 584 613 812 CHAB 1007 624 904 1149 CICB 1085 682 776 974 CROB 1205 401 584 1055 DIOB 905 812 787 846 DJIB 1096 642 754 953 EVEB 524 393 402 700 FAIB 2792 1106 1180 2537 FUTB 1086 532 616 922 GAVB 951 0 0 760 GREB 1391 527 759 1103 HEMB 995 446 484 875 JIUB 940 396 682 918 KIUB 1387 1052 987 1253 KOLB 1317 873 953 1043 KRUB 1043 511 557 821 LICB 990 526 562 851 MAHB 918 399 442 914 MALB 999 610 722 859 MATB 1390 721 769 1243 METB 1867 719 856 1742 MIAB 1206 579 495 970 MONB 1291 667 810 1149 MORB 1188 690 818 891 NOWB 1214 359 565 940 PAQB 1219 614 608 957 PDMB 1286 555 775 1091 REUB 1061 493 512 903 REZB 1994 695 434 1685 RIKB 1050 0 0 0 RIPB 2153 558 659 1683 ROTB 3877 1601 1602 3269 SANB 1220 736 637 1015 SCRB 1058 658 629 906 SODB 1139 529 544 980 SPJB 3817 1682 1884 3449 STJB 1536 803 949 1262 SYPB 3921 1636 1973 3233 THUB 3282 1595 1654 3165 TLHA 1576 520 590 1250 TRIB 1255 744 862 928 YASB 1284 759 856 909 YELB 2624 795 916 2064 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- 7) External Comparisons ======================= (for information) 7.1) Stations coordinates ------------------------- Looking at the transformation results Comparing with solution ign04d02 at epoch of observations Weekly DORIS residuals in mm N E V ------------------- WRMS 13.8 20.4 16.0 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -23.2 +- 2.2 mm TY = 23.7 +- 2.2 mm TZ = 42.4 +- 2.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.1 +- 0.3 ppb 7.4) Earth Orientation Parameters --------------------------------- External comparison with JPL/GPS EOP values number of days compared X_POLE_RMS (mas) Y_POLE_RMS (mas) ------------------------------------------------------------------ 7 1.02 0.68 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/Fd000DkTuY1LmqM2pqoc96M9ZywJGZq!P7I4FmJN2Fh3o2WJlfXNaAEvLnVmSUJbcWyN!DK+CENG1iOfGWo4U!ijOiwzbroBsAV2aNaeXyK7q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuF9ZQZFPA55Ad8LxZEBiOxZc0m6!WW4+aCndBtJRTESKlBCmXqvonEil3wZQ4koke! si ce message est indésirable (pourriel). 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