This is a multi-part message in MIME format... ------------=_1102615659-6928-6 ****************************************************************************** dorisreport 09-Dec-2004 18:49:59 Message No 0076 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1294 = 04298 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1294 from 24-10-2004 to 30-10-2004 DORIS name (using day of start): 04298 Days of year: from 2004/298 to 2004/304 ============================================================== 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/ign04298wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04298wd04.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 1294 from 24-10-2004 to 30-10-2004 Total number of stations = 42 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.27 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 24-10-2004 25695 36 25659 0.1 25-10-2004 25290 91 25199 0.4 26-10-2004 24735 123 24612 0.5 27-10-2004 23366 40 23326 0.2 28-10-2004 24858 23 24835 0.1 29-10-2004 25585 18 25567 0.1 30-10-2004 25586 25 25561 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 5967 6208 5936 5149 5847 6091 6014 SPOT2 4105 3973 3871 3939 3934 4288 3977 SPOT4 4427 4419 4290 4111 4260 4337 4408 SPOT5 6530 6160 6034 5837 6152 6430 6292 TOPEX 4630 4439 4481 4290 4642 4421 4870 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.420 0.434 0.445 0.446 0.434 0.434 0.426 SPOT2 0.418 0.424 0.415 0.468 0.457 0.446 0.414 SPOT4 0.446 0.451 0.443 0.438 0.441 0.448 0.453 SPOT5 0.419 0.395 0.394 0.397 0.393 0.391 0.403 TOPEX 0.466 0.453 0.446 0.457 0.446 0.444 0.450 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 1679 1708 1669 1737 1684 1690 1787 AMTB 488 526 487 497 581 497 501 ASDB 276 230 189 166 115 210 242 BADB 637 558 608 613 674 553 659 CADB 104 0 0 0 0 0 0 CHAB 989 991 914 923 947 950 944 CICB 552 636 500 505 486 482 581 CROB 357 356 394 302 312 373 353 DIOA o 545 588 583 439 496 551 492 DJIB 672 621 616 558 388 645 628 EASB 679 625 625 646 614 586 589 FAIB o 1392 1371 1385 1358 1366 1385 1302 FUTB 591 599 510 585 657 581 628 GALA 507 326 340 496 470 497 420 GREB 544 578 624 606 625 548 536 HBKB 570 284 0 0 0 0 0 HEMB 421 409 401 456 458 345 466 KESB 399 410 479 391 439 429 408 KIUB 627 549 528 555 649 619 298 KOLB 743 798 770 770 667 755 837 KRAB o 777 652 597 561 543 753 656 KRUB 393 365 369 312 386 373 397 LIBB 446 497 311 426 479 505 502 MATB 433 510 581 568 554 549 607 METB 782 817 853 837 829 775 842 MORB 475 548 389 477 447 407 501 MSPB 642 798 630 666 634 661 692 PAQB 707 647 591 691 671 723 715 PDMB 458 303 312 461 521 465 209 REUB 502 450 503 483 566 524 425 RIDA 318 354 379 366 328 314 360 RIPB 0 534 906 853 879 899 972 SAKB 743 525 642 677 670 673 706 SALB 388 378 394 292 138 166 381 SANB 555 670 665 560 667 676 518 SODB o 678 329 620 463 700 582 610 STJB 216 126 149 25 74 102 264 SYPB 1502 1646 1056 0 907 1624 1587 TLHA 764 724 839 770 845 716 769 TRIB o 608 548 640 597 691 746 575 YASB 421 672 716 640 625 595 642 YELB 1147 1058 997 1056 1089 1084 1008 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 2938 2137 2116 3160 1714 AMTB 1080 647 660 1084 352 ASDB 561 243 350 97 236 BADB 1499 745 671 1304 324 CADB 48 0 49 16 0 CHAB 1627 1121 1175 1339 1713 CICB 752 715 734 1184 718 CROB 874 359 420 696 224 DIOA 999 690 746 1053 296 DJIB 846 895 824 851 882 EASB 775 824 802 962 1373 FAIB 2354 1219 1516 3461 1727 FUTB 840 595 840 963 1041 GALA 672 554 718 782 465 GREB 1062 537 603 1401 812 HBKB 213 122 176 266 154 HEMB 998 463 377 790 623 KESB 934 533 558 916 99 KIUB 967 786 841 1070 438 KOLB 936 902 1013 1293 1592 KRAB 1427 709 869 1619 248 KRUB 579 495 397 655 647 LIBB 687 608 547 1033 609 MATB 1128 553 617 983 719 METB 1845 946 1044 1720 229 MORB 631 683 605 684 740 MSPB 1348 729 889 1119 862 PAQB 936 776 912 1302 1212 PDMB 816 492 518 839 303 REUB 824 729 699 912 430 RIDA 0 482 553 1163 471 RIPB 849 900 1049 1256 1127 SAKB 1019 938 753 879 1253 SALB 583 441 362 575 373 SANB 979 742 687 1295 961 SODB 763 568 842 1165 965 STJB 499 0 314 33 125 SYPB 2202 1559 1652 2906 541 TLHA 1099 449 505 1506 2188 TRIB 932 797 748 1136 1046 YASB 1009 840 732 1057 910 YELB 1827 875 1182 2714 1366 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 15.5 14.1 15.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -12.7 +- 2.3 mm TY = 3.5 +- 1.9 mm TZ = -10.3 +- 1.7 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.4 +- 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 1.22 0.54 ============================================================== ------------=_1102615659-6928-6 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 ------------=_1102615659-6928-6--