This is a multi-part message in MIME format... ------------=_1102535637-6928-4 ****************************************************************************** dorisreport 08-Dec-2004 20:53:08 Message No 0074 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1293 = 04291 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1293 from 17-10-2004 to 23-10-2004 DORIS name (using day of start): 04291 Days of year: from 2004/291 to 2004/297 ============================================================== 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 cddisa.gsfc.nasa.gov weekly sinex in free-network pub/doris/products/sinex_series/ignwd/ign04291wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04291wd04.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 1293 from 17-10-2004 to 23-10-2004 Total number of stations = 44 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.20 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 17-10-2004 25107 133 24974 0.5 18-10-2004 25847 35 25812 0.1 19-10-2004 25260 59 25201 0.2 20-10-2004 27109 42 27067 0.2 21-10-2004 26156 4262 21894 16.3 22-10-2004 24664 19 24645 0.1 23-10-2004 26392 180 26212 0.7 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 5502 5760 5753 5937 6082 4773 6253 SPOT2 3859 4310 4233 4446 0 4211 4231 SPOT4 4382 4240 4391 4934 4602 4441 4531 SPOT5 6141 6440 6322 6702 6253 6551 6627 TOPEX 5090 5062 4502 5048 4957 4669 4570 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.455 0.427 0.444 0.431 0.432 0.424 0.424 SPOT2 0.438 0.408 0.474 0.4444333407.000 0.449 0.417 SPOT4 0.420 0.430 0.436 0.460 0.461 0.436 0.447 SPOT5 0.409 0.396 0.411 0.409 0.400 0.389 0.402 TOPEX 0.450 0.433 0.457 0.449 0.439 0.444 0.455 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 1723 1816 1785 1698 1770 1829 1758 AMTB 83 85 76 378 508 451 499 ASDB 93 172 227 193 156 228 293 BADB 644 685 553 542 629 562 568 CADB 282 442 327 455 440 519 419 CHAB 85 147 69 858 950 859 916 CICB 600 585 545 501 617 544 522 COLA o 516 314 269 0 0 0 0 CROB 296 367 362 489 325 343 318 DIOA o 0 0 274 582 502 585 479 DJIB 576 402 521 643 640 615 577 EASB 705 594 559 596 612 595 651 FAIB o 1300 1428 1230 1417 1397 1349 1382 FUTB 586 397 600 593 546 553 620 GALA 469 485 493 341 490 462 362 GREB 607 590 477 557 623 634 592 HBKB 576 636 570 524 482 560 615 HEMB 556 390 370 505 380 469 451 KESB 602 580 427 408 440 446 425 KIUB 0 0 248 434 477 629 538 KOLB 674 680 720 806 731 785 770 KRAB o 729 710 707 584 699 818 704 KRUB 410 229 294 431 360 80 313 LIBB 443 475 516 520 307 377 553 MATB 379 390 410 403 574 475 612 METB 848 862 842 843 916 889 930 MORB 432 480 454 473 521 497 313 MSPB 655 775 624 749 696 793 639 PAQB 578 680 636 643 660 704 669 PDMB 429 475 497 588 423 434 528 PURA 224 499 609 529 397 514 0 REUB 490 646 559 465 540 486 528 RIDA 345 327 303 355 406 325 335 RIPB 1034 950 1078 854 0 0 0 SAKB 663 795 662 699 689 640 735 SALB 345 386 304 325 266 405 418 SANB 565 671 688 644 565 593 547 SODB o 607 656 552 625 624 602 579 STJB 227 212 76 274 213 168 403 SYPB 1583 1590 1668 1574 1491 1625 1515 TLHA 834 781 801 719 737 785 815 TRIB o 597 654 673 561 559 625 717 YASB 702 648 612 744 663 474 704 YELB 1047 1198 1033 1008 1154 1108 1129 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 TOPEX --------------------------------------------- ADEB 2960 2095 2232 3125 2062 AMTB 504 650 387 547 147 ASDB 492 291 266 151 214 BADB 1294 524 668 1284 632 CADB 428 695 597 827 461 CHAB 819 863 673 728 961 CICB 874 749 722 1143 777 COLA 242 298 294 223 135 CROB 1020 305 340 731 254 DIOA 676 492 558 612 154 DJIB 828 789 707 926 857 EASB 815 747 934 988 1244 FAIB 2333 1162 1485 3509 1733 FUTB 798 452 739 942 1118 GALA 689 663 656 813 425 GREB 1020 658 756 1324 659 HBKB 874 667 722 1272 760 HEMB 942 439 492 977 621 KESB 968 623 693 925 205 KIUB 528 577 487 696 228 KOLB 934 793 949 1246 1616 KRAB 1491 776 729 1802 514 KRUB 356 395 369 471 649 LIBB 817 467 626 959 583 MATB 541 516 657 976 686 METB 1891 1002 1114 1799 401 MORB 550 733 560 638 815 MSPB 1200 683 1017 1116 1129 PAQB 871 770 876 1144 1259 PDMB 1055 586 567 1230 264 PURA 533 586 422 594 737 REUB 846 690 721 940 631 RIDA 0 641 534 1066 405 RIPB 762 776 774 1062 711 SAKB 1114 944 824 961 1289 SALB 528 400 441 900 426 SANB 992 787 740 1325 775 SODB 871 633 834 1184 1036 STJB 874 0 216 301 202 SYPB 2926 2047 2244 3699 822 TLHA 1289 369 415 1455 2271 TRIB 901 814 876 1037 993 YASB 1101 818 835 1006 1030 YELB 1848 908 1240 2776 1438 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 TOPEX --------------------------------------------- 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 14.4 16.0 14.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -13.7 +- 1.3 mm TY = 9.7 +- 1.2 mm TZ = -17.7 +- 1.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.6 +- 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) ------------------------------------------------------------------ 7 0.35 0.32 ============================================================== ------------=_1102535637-6928-4 Content-Type: text/plain; name="message.footer" Content-Disposition: inline; filename="message.footer" Content-Transfer-Encoding: 8bit Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr ------------=_1102535637-6928-4--