This is a multi-part message in MIME format... ------------=_1106159511-10281-15 ****************************************************************************** dorisreport 19-Jan-2005 19:19:13 Message No 0118 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1301 = 04347 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1301 from 12-12-2004 to 18-12-2004 DORIS name (using day of start): 04347 Days of year: from 2004/347 to 2004/353 ============================================================== 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/ign04347wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04347wd04.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 1301 from 12-12-2004 to 18-12-2004 Total number of stations = 44 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.57 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 12-12-2004 23674 15 23659 0.1 13-12-2004 22746 19 22727 0.1 14-12-2004 22059 43 22016 0.2 15-12-2004 23556 21 23535 0.1 16-12-2004 22766 32 22734 0.1 17-12-2004 17965 14 17951 0.1 18-12-2004 21762 39 21723 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 7248 6631 6099 6789 6382 5259 6567 SPOT2 4496 4615 4560 4797 4596 4668 4631 SPOT4 5014 4700 4469 4774 4844 4809 4664 SPOT5 6901 6781 6888 7175 6912 3215 5861 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.418 0.419 0.411 0.420 0.412 0.410 0.433 SPOT2 0.422 0.428 0.420 0.431 0.448 0.431 0.413 SPOT4 0.437 0.437 0.440 0.437 0.439 0.452 0.433 SPOT5 0.400 0.378 0.403 0.393 0.387 0.377 0.373 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 1533 1489 1456 1497 1458 1194 1500 AMTB 444 403 469 364 465 343 358 ASDB 282 239 269 308 243 219 261 BADB 485 611 553 519 574 486 614 CADB 517 370 411 553 522 302 400 CHAB 662 706 695 705 682 615 687 CICB 476 457 450 461 0 0 0 CROB 240 325 284 389 339 276 299 DIOA o 471 512 453 510 428 395 489 DJIB 301 280 350 376 441 347 374 EASB 441 457 430 462 424 343 411 FAIB o 1053 960 1029 1007 1049 920 941 FUTB 437 407 494 486 438 347 430 GALA 468 449 443 473 450 371 468 GREB 513 528 494 479 522 379 513 HEMB 232 461 328 324 331 288 246 KESB 293 303 327 279 327 251 382 KOLB 567 508 480 568 548 462 523 KRAB o 569 594 635 705 590 494 542 KRUB 332 287 313 334 349 262 281 LIBB 442 350 368 425 367 292 372 MAHB 346 374 370 427 384 305 417 MATB 476 518 478 354 417 225 380 METB 782 776 723 707 725 558 729 MORB 325 352 316 322 302 280 409 MSPB 547 566 578 526 576 408 562 PAQB 469 490 498 517 510 343 482 PDMB 416 397 422 387 460 327 422 PURA 492 370 350 542 386 235 285 REUB 400 351 403 377 305 268 330 REZB 809 845 837 804 942 740 648 RIDA 314 287 276 264 289 265 279 SAKB 646 695 764 691 581 471 673 SALB 336 316 0 0 0 0 0 SANB 584 451 516 568 596 459 493 SODB o 519 459 434 553 476 359 246 SPJB 0 245 272 249 260 334 339 STJB 91 43 57 61 0 28 94 SYPB 1560 695 535 1421 1339 1227 1186 THUB 1545 1508 1539 1509 1407 1069 1499 TLHA 480 460 452 443 508 300 371 TRIB o 484 547 471 456 437 292 422 YASB 526 496 232 379 516 382 573 YELB 810 854 840 812 822 655 850 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 3007 2139 2270 2883 AMTB 892 607 575 1003 ASDB 659 274 378 646 BADB 1431 712 727 1248 CADB 1027 749 726 824 CHAB 1645 1070 1166 1232 CICB 504 443 448 661 CROB 728 354 443 772 DIOA 873 759 877 866 DJIB 657 687 574 666 EASB 773 783 884 888 FAIB 2127 1275 1362 2805 FUTB 927 584 817 864 GALA 861 819 766 836 GREB 1077 636 767 1305 HEMB 814 466 417 851 KESB 652 563 463 563 KOLB 975 913 1015 1156 KRAB 1386 745 731 1688 KRUB 660 537 406 760 LIBB 825 544 634 909 MAHB 886 552 512 887 MATB 853 539 657 993 METB 1619 767 1114 1593 MORB 568 672 577 598 MSPB 1318 678 996 1023 PAQB 928 780 918 986 PDMB 831 597 596 1109 PURA 755 747 661 643 REUB 621 586 512 822 REZB 2401 537 1244 1877 RIDA 0 589 623 1044 SAKB 1451 1104 1080 1220 SALB 216 115 83 332 SANB 1057 830 987 1164 SODB 808 817 718 978 SPJB 0 1798 0 0 STJB 181 0 158 40 SYPB 1943 1758 1826 3058 THUB 3689 1875 2107 3018 TLHA 1099 524 399 1239 TRIB 805 672 856 994 YASB 971 705 774 901 YELB 1950 972 1022 2201 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 18.3 17.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -3.5 +- 1.2 mm TY = -4.5 +- 1.3 mm TZ = -24.7 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.7 +- 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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