This is a multi-part message in MIME format... ------------=_1098290226-2395-19 ****************************************************************************** dorisreport 20-Oct-2004 18:31:59 Message No 0021 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1285 = 04235 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1285 from 22-08-2004 to 28-08-2004 DORIS name (using day of start): 04235 Days of year: from 2004/235 to 2004/241 ============================================================== 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/ign04235wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04235wd04.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 4) Global Statistics ==================== GPS week number 1285 from 22-08-2004 to 28-08-2004 Total number of stations = 41 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.60 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 22-08-2004 22141 76 22065 0.3 23-08-2004 22612 108 22504 0.5 24-08-2004 23589 154 23435 0.7 25-08-2004 23886 65 23821 0.3 26-08-2004 24334 45 24289 0.2 27-08-2004 24513 53 24460 0.2 28-08-2004 24147 50 24097 0.2 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 4191 4249 3931 3976 4482 3946 4141 SPOT2 3712 3582 3821 4167 4081 4187 4001 SPOT4 3838 4150 4425 4610 4320 4383 4337 SPOT5 5695 5794 6001 5687 6100 6386 6274 TOPEX 4629 4729 5257 5381 5306 5558 5344 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.483 0.529 0.506 0.489 0.523 0.527 0.498 SPOT2 0.433 0.446 0.457 0.436 0.440 0.426 0.443 SPOT4 0.444 0.443 0.480 0.463 0.440 0.453 0.443 SPOT5 0.418 0.429 0.426 0.408 0.417 0.428 0.419 TOPEX 0.470 0.450 0.467 0.472 0.470 0.466 0.459 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 1832 1756 1728 1741 1795 1755 1740 ASDB 226 157 158 238 181 334 236 BADB 0 0 0 292 304 320 312 CICB 546 535 525 517 562 454 611 COLA o 475 514 494 539 601 559 506 CROB 566 724 770 579 612 698 616 DIOA o 413 577 522 420 521 477 394 DJIB 525 599 466 538 523 470 590 EASB 646 643 540 588 553 544 607 FAIB o 1170 1094 1160 1197 1156 1147 1187 FUTB 593 537 496 484 519 562 454 GALA 181 184 180 375 387 250 139 GOMB 227 237 201 170 223 185 117 GREB 523 492 512 501 516 578 485 HBKB 712 518 502 573 532 508 611 HEMB 303 411 526 366 379 429 396 JIUB 74 0 103 33 0 28 77 KIUB 574 576 582 612 581 589 722 KOLB 773 658 643 664 661 655 620 KRAB o 793 1019 857 621 722 668 753 KRUB 487 651 743 554 690 484 480 LIBB 463 460 399 530 478 456 489 MANB 0 28 29 0 31 27 0 METB 760 844 792 800 835 748 768 MORB 104 73 49 491 445 456 456 MSPB 686 632 693 677 634 695 579 PAQB 392 276 327 333 219 488 363 PDMB 401 437 474 430 435 418 394 PURA 266 541 592 450 369 538 604 REUB 196 114 126 389 424 421 467 REYB 864 809 813 767 833 745 869 RIDA 384 444 401 373 443 382 322 RIPB 0 0 1120 1032 1108 1181 1168 SANB 713 676 697 652 676 611 637 SODB o 589 577 579 506 429 534 521 STJB 182 272 254 294 503 499 353 SYPB 1697 1677 1652 1787 1662 1763 1654 TLHA 781 725 731 706 662 818 728 TRIB o 478 583 583 584 575 485 646 YASB 594 686 690 617 600 619 580 YELB 989 892 887 882 977 964 918 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 2945 2222 2223 3172 2361 ASDB 330 291 327 174 462 BADB 0 298 431 0 542 CICB 633 741 741 1084 901 COLA 629 682 821 1144 746 CROB 749 743 1017 1039 1212 DIOA 694 837 814 899 211 DJIB 819 648 794 909 749 EASB 470 870 879 917 1312 FAIB 1244 1185 1400 2816 2013 FUTB 526 564 806 878 1029 GALA 383 624 238 320 215 GOMB 265 140 189 781 0 GREB 778 700 691 1240 559 HBKB 680 635 913 1195 885 HEMB 607 472 449 929 684 JIUB 374 0 0 0 0 KIUB 516 842 940 1495 895 KOLB 718 737 941 1105 1599 KRAB 641 883 1059 2007 1288 KRUB 771 601 704 940 1448 LIBB 633 567 721 1072 649 MANB 115 0 0 0 0 METB 1247 1059 1099 1664 611 MORB 560 426 359 348 482 MSPB 778 745 965 1101 1177 PAQB 450 360 427 911 556 PDMB 668 602 614 1109 300 PURA 420 499 676 677 1229 REUB 669 531 274 481 284 REYB 1578 883 946 2544 317 RIDA 586 574 518 1059 284 RIPB 1013 1047 1042 1531 1513 SANB 783 786 820 1463 1300 SODB 617 618 696 1204 925 STJB 649 127 521 640 479 SYPB 2837 2209 2373 3828 1640 TLHA 778 429 492 1582 2293 TRIB 433 829 833 1075 980 YASB 578 856 827 1061 1206 YELB 1558 898 887 2447 1335 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 ign03d02 at epoch of observations Weekly DORIS residuals in mm N E V ------------------- WRMS 17.3 14.0 15.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign03d02 TX = -15.1 +- 2.8 mm TY = 13.4 +- 2.6 mm TZ = 3.6 +- 2.5 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign03d02 S = -1.4 +- 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 1.00 0.85 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