This is a multi-part message in MIME format... ------------=_1107538709-10281-28 ****************************************************************************** dorisreport 04-Feb-2005 18:38:24 Message No 0132 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1303 = 04361 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1303 from 26-12-2004 to 01-01-2005 DORIS name (using day of start): 04361 Days of year: from 2004/361 to 2005/1 ============================================================== 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/ign04361wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04361wd04.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., Y. Bar-Sever, and G. Tavernier (2003), DORIS as a potential part of a Global Geodetic Observing System, J. Geodyn, G07_10P_D-001, in press. 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. 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 4) Global Statistics ==================== GPS week number 1303 from 26-12-2004 to 01-01-2005 Total number of stations = 43 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.93 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 26-12-2004 24273 26 24247 0.1 27-12-2004 24164 34 24130 0.1 28-12-2004 24625 29 24596 0.1 29-12-2004 24830 25 24805 0.1 30-12-2004 24403 30 24373 0.1 31-12-2004 24776 13 24763 0.1 01-01-2005 24790 12 24778 0.0 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 6759 7158 7586 7268 7170 7476 7244 SPOT2 4724 4710 4844 4953 4797 4498 4826 SPOT4 5284 5047 5158 5136 4846 5210 5264 SPOT5 7480 7215 7008 7448 7560 7579 7444 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.426 0.411 0.424 0.421 0.439 0.404 0.430 SPOT2 0.437 0.420 0.439 0.432 0.440 0.429 0.447 SPOT4 0.447 0.446 0.427 0.442 0.442 0.431 0.437 SPOT5 0.403 0.394 0.397 0.382 0.412 0.384 0.388 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 1384 1446 1454 1455 1462 1471 1483 AMTB 464 491 455 411 411 457 467 ASDB 276 258 137 321 287 260 283 BADB 609 537 569 600 592 584 616 CADB 395 417 462 377 426 484 495 CHAB 618 680 700 683 716 707 717 CICB 347 362 367 340 333 339 335 CROB 353 330 303 347 331 319 348 DIOA o 467 435 530 497 449 533 558 DJIB 458 448 406 452 466 426 448 EASB 484 423 455 527 439 465 394 FAIB o 1046 1020 996 1034 1073 898 1061 FUTB 490 406 462 414 452 487 442 GALA 476 411 427 418 460 474 381 GREB 504 566 527 486 516 495 495 HEMB 435 335 338 448 350 325 388 KESB 332 437 375 421 404 345 444 KOLB 557 494 578 501 504 534 393 KRAB o 686 695 681 617 705 665 668 KRUB 272 240 258 402 267 237 315 LIBB 387 355 382 416 423 423 425 MAHB 353 407 366 350 378 440 397 MATB 454 368 492 533 462 428 457 METB 647 621 688 696 633 696 715 MORB 321 399 343 337 351 366 325 MSPB 449 589 592 547 543 518 590 PAQB 492 506 439 491 527 528 490 PDMB 467 428 431 424 125 310 481 PURA 286 303 421 363 352 488 379 REUB 428 447 385 363 413 464 396 REZB 762 647 569 705 680 641 611 RIDA 292 301 308 286 268 268 296 SAKB 643 727 651 691 712 689 712 SANB 557 563 547 492 510 620 542 SODB o 499 469 488 437 489 546 466 SPJB 1630 1584 1655 1595 1568 1595 1640 STJB 68 167 199 247 277 228 206 SYPB 1451 1374 1544 1460 1480 1450 1388 THUB 1191 1232 1244 1280 1358 1286 1246 TLHA 581 544 489 495 510 550 514 TRIB o 383 430 551 500 478 430 459 YASB 458 518 560 591 469 495 533 YELB 859 794 828 826 795 831 818 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 2958 2064 2093 3215 AMTB 1043 603 640 1135 ASDB 629 291 392 646 BADB 1599 575 723 1539 CADB 978 706 739 872 CHAB 1490 1048 1235 1387 CICB 618 672 580 791 CROB 867 354 465 821 DIOA 989 782 836 997 DJIB 883 656 785 948 EASB 794 886 864 1047 FAIB 2198 1175 1406 3014 FUTB 885 620 849 969 GALA 802 747 770 855 GREB 1118 715 782 1386 HEMB 1029 541 474 951 KESB 872 562 568 868 KOLB 870 863 1020 1225 KRAB 1498 857 939 1853 KRUB 555 457 440 733 LIBB 762 597 741 1018 MAHB 967 524 526 879 MATB 1227 542 633 1038 METB 1572 759 809 1646 MORB 558 756 540 695 MSPB 1247 755 858 1210 PAQB 867 866 885 1221 PDMB 839 511 628 977 PURA 723 515 705 788 REUB 848 562 648 963 REZB 1809 620 815 1690 RIDA 0 537 576 1232 SAKB 1585 1195 1157 1257 SANB 1002 733 1061 1479 SODB 877 805 929 1098 SPJB 3872 2291 2346 3523 STJB 648 0 329 454 SYPB 2921 2155 2108 3743 THUB 3157 1822 1807 2584 TLHA 1276 609 573 1593 TRIB 842 768 727 1169 YASB 1244 814 845 999 YELB 1955 961 922 2413 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 17.5 13.7 15.3 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -5.4 +- 1.2 mm TY = 0.8 +- 1.1 mm TZ = -17.1 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.3 +- 0.2 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) 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