This is a multi-part message in MIME format... ------------=_1110303680-10281-60 ****************************************************************************** dorisreport 08-Mar-2005 18:41:16 Message No 0162 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1306 = 05016 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1306 from 16-01-2005 to 22-01-2005 DORIS name (using day of start): 05016 Days of year: from 2005/16 to 2005/22 ============================================================== 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/ign05016wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05016wd04.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 1306 from 16-01-2005 to 22-01-2005 Total number of stations = 43 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 4.87 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 16-01-2005 23794 44 23750 0.2 17-01-2005 23654 46 23608 0.2 18-01-2005 23555 21 23534 0.1 19-01-2005 24121 29 24092 0.1 20-01-2005 24636 24 24612 0.1 21-01-2005 24064 63 24001 0.3 22-01-2005 23190 20 23170 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 7211 6981 6791 7337 7133 6887 7031 SPOT2 4336 4699 4804 4698 4941 4533 4775 SPOT4 4959 5000 5020 4972 5165 5316 4708 SPOT5 7244 6928 6919 7085 7373 7265 6656 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.437 0.446 0.421 0.413 0.418 0.444 0.417 SPOT2 0.428 0.462 0.444 0.421 0.421 0.520 0.423 SPOT4 0.439 0.445 0.429 0.424 0.456 0.467 0.417 SPOT5 0.398 0.387 0.385 0.374 0.394 0.410 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 1494 1502 1469 1496 1479 1420 1549 AMTB 434 455 419 381 446 460 456 BADB 65 66 100 0 0 0 0 CADB 445 386 364 403 527 459 530 CHAB 674 733 716 659 704 684 714 CICB 463 450 447 465 467 448 487 CROB 334 312 260 284 336 395 385 DIOA o 457 29 0 0 0 0 0 DJIB 486 432 452 472 439 387 418 EASB 423 487 505 428 475 471 436 FAIB o 1006 983 1071 958 1038 1043 957 FUTB 453 391 354 397 456 491 425 GALA 431 424 454 222 438 458 444 GREB 514 604 573 575 572 547 579 HEMB 330 389 274 345 352 405 299 KESB 363 394 426 434 403 382 427 KIUB 0 77 149 407 555 626 605 KOLB 391 511 453 448 503 552 502 KRAB o 716 695 625 838 851 849 877 KRUB 330 332 273 441 392 278 461 LIBB 181 244 387 387 398 283 0 MAHB 414 378 387 387 381 375 229 MATB 445 434 445 462 490 454 399 METB 646 703 702 650 710 618 637 MORB 375 312 402 365 293 381 382 MSPB 563 528 629 573 488 492 589 PAQB 490 462 444 524 508 525 474 PDMB 489 574 352 490 453 442 470 PURA 491 388 324 443 448 397 398 REUB 345 352 374 422 393 411 437 REZB 700 594 638 624 601 795 617 RIDA 434 409 411 423 402 413 425 SAKB 643 681 707 693 671 705 683 SALB 359 414 400 389 315 0 0 SANB 596 472 478 539 554 511 606 SODB o 538 484 471 517 497 504 529 SPJB 1583 1647 1579 1599 1646 1578 1410 SYPB 1459 1516 1484 1528 1505 1446 1366 THUB 1302 1280 1331 1269 1284 1378 1106 TLHA 535 514 449 515 449 541 454 TRIB o 447 479 421 449 545 451 396 YASB 205 353 532 420 367 273 293 YELB 788 823 867 837 847 775 772 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 3061 2108 2232 3228 AMTB 974 628 597 1125 BADB 69 24 24 120 CADB 1064 753 674 859 CHAB 1647 1035 1239 1358 CICB 897 697 847 1158 CROB 894 345 444 810 DIOA 189 93 90 128 DJIB 828 751 728 946 EASB 906 804 855 1054 FAIB 2134 1133 1405 3123 FUTB 883 451 855 924 GALA 823 665 724 807 GREB 1154 872 858 1533 HEMB 954 463 448 927 KESB 887 567 584 909 KIUB 722 766 551 577 KOLB 888 701 1002 1122 KRAB 1581 1150 1274 1910 KRUB 647 577 610 924 LIBB 564 399 489 604 MAHB 862 517 543 846 MATB 1075 570 698 999 METB 1610 706 810 1646 MORB 615 753 549 701 MSPB 1314 741 843 1220 PAQB 924 818 876 1179 PDMB 962 761 720 1211 PURA 837 578 783 840 REUB 786 547 602 929 REZB 1954 656 549 1768 RIDA 879 540 558 1300 SAKB 1489 1193 1213 1252 SALB 527 452 460 637 SANB 1032 742 1066 1345 SODB 949 875 914 1158 SPJB 3821 2193 2405 3446 SYPB 2994 2157 2151 3818 THUB 3246 1958 1953 2372 TLHA 1193 501 563 1587 TRIB 880 674 767 1134 YASB 651 595 523 862 YELB 1929 927 915 2457 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 23.1 19.0 17.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -12.6 +- 1.2 mm TY = 11.2 +- 1.4 mm TZ = -30.3 +- 1.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.5 +- 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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