This is a multi-part message in MIME format... ------------=_1104857446-10281-0 ****************************************************************************** dorisreport 04-Jan-2005 17:41:58 Message No 0098 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1298 = 04326 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1298 from 21-11-2004 to 27-11-2004 DORIS name (using day of start): 04326 Days of year: from 2004/326 to 2004/332 ============================================================== 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/ign04326wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04326wd04.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 1298 from 21-11-2004 to 27-11-2004 Total number of stations = 44 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.85 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 21-11-2004 21555 27 21528 0.1 22-11-2004 21563 9 21554 0.0 23-11-2004 22662 21 22641 0.1 24-11-2004 22612 90 22522 0.4 25-11-2004 22867 26 22841 0.1 26-11-2004 23580 31 23549 0.1 27-11-2004 23196 10 23186 0.0 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 5981 6121 6612 6497 6536 6922 6759 SPOT2 4425 4574 4595 4622 4660 4736 4617 SPOT4 4606 4422 4601 4546 4828 4910 4948 SPOT5 6516 6437 6833 6857 6817 6981 6862 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.418 0.414 0.415 0.406 0.421 0.429 0.418 SPOT2 0.429 0.443 0.431 0.437 0.420 0.431 0.436 SPOT4 0.438 0.441 0.447 0.447 0.435 0.448 0.435 SPOT5 0.385 0.371 0.385 0.407 0.412 0.398 0.383 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 1478 1497 1482 1450 1443 1579 1526 AMTB 452 478 493 397 480 481 442 ASDB 0 0 52 160 288 169 110 BADB 560 576 579 550 532 534 617 CADB 381 270 296 257 338 306 337 CHAB 607 698 705 662 698 730 666 CICB 459 457 478 449 442 503 442 CROB 319 313 327 353 324 274 335 DIOA o 523 480 534 516 414 548 551 DJIB 434 472 443 456 441 397 424 EASB 452 454 467 472 410 460 480 FAIB o 1173 1146 1093 1170 1173 1130 1111 FUTB 404 386 408 491 490 413 376 GALA 366 396 421 414 459 460 461 GREB 484 533 530 339 449 515 502 HEMB 403 356 343 369 318 338 459 KESB 136 148 339 388 337 375 427 KIUB 110 101 133 120 310 284 284 KOLB 528 528 528 516 556 554 466 KRAB o 607 587 595 680 682 628 566 KRUB 291 260 241 276 256 242 243 LIBB 391 438 362 404 396 456 345 MAHB 149 130 90 341 401 427 364 MATB 418 444 490 508 477 356 423 METB 807 793 814 770 802 834 799 MORB 293 418 323 305 422 357 317 MSPB 457 566 586 489 561 552 620 PAQB 490 491 524 513 528 496 404 PDMB 282 350 431 513 365 449 450 PURA 380 414 458 259 108 467 418 REUB 375 401 418 385 360 427 366 REZB 1155 949 1173 1105 1046 1035 1105 RIDA 321 254 262 242 290 319 283 SAKB 585 774 671 602 696 669 705 SALB 0 0 73 269 218 198 234 SANB 493 477 502 442 487 572 488 SODB o 457 470 485 509 488 505 421 STJB 232 258 281 308 325 406 394 SYPB 1576 1396 1514 1485 1428 1535 1499 THUB 315 317 312 327 318 298 249 TLHA 430 308 512 449 459 466 407 TRIB o 429 481 513 470 425 431 599 YASB 514 399 535 538 477 573 623 YELB 858 926 879 920 970 861 903 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 2955 2122 2238 3211 AMTB 1073 695 580 1104 ASDB 329 195 174 116 BADB 1507 723 703 1255 CADB 688 589 558 515 CHAB 1480 1060 1144 1354 CICB 881 811 772 1068 CROB 919 296 453 734 DIOA 991 828 846 1014 DJIB 885 740 759 784 EASB 868 827 849 1024 FAIB 2528 1229 1426 3551 FUTB 865 504 829 892 GALA 811 692 729 861 GREB 987 634 637 1455 HEMB 1032 457 447 1027 KESB 677 422 395 723 KIUB 292 325 386 350 KOLB 934 927 1013 1141 KRAB 1472 746 798 1671 KRUB 423 447 450 651 LIBB 715 686 624 1058 MAHB 582 508 505 448 MATB 1196 546 621 942 METB 1777 1023 1039 1824 MORB 554 688 620 678 MSPB 1242 699 932 1164 PAQB 911 815 909 1134 PDMB 814 602 588 1140 PURA 620 631 627 753 REUB 861 602 502 856 REZB 2740 1033 1983 2288 RIDA 0 508 624 1081 SAKB 1522 1103 1034 1360 SALB 260 306 171 337 SANB 972 794 778 1269 SODB 899 776 861 1083 STJB 1139 0 345 748 SYPB 2918 2104 2188 3968 THUB 0 2237 0 0 TLHA 1149 393 455 1280 TRIB 866 730 840 1145 YASB 1176 787 856 1080 YELB 2070 884 1160 2676 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 16.9 13.8 20.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -20.9 +- 1.3 mm TY = 12.5 +- 1.5 mm TZ = -52.5 +- 1.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.7 +- 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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