This is a multi-part message in MIME format... ------------=_1112381233-2728-12 ****************************************************************************** dorisreport 01-Apr-2005 20:47:03 Message No 0189 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1311 = 05051 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1311 from 20-02-2005 to 26-02-2005 DORIS name (using day of start): 05051 Days of year: from 2005/51 to 2005/57 ============================================================== 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/ign05051wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05051wd04.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., 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. Willis, P., C. Boucher, H. Fagard, Z. Altamimi (2005), Applications geodesiques du systeme DORIS a l'Institut Geographique National, Geodetic applications of the DORIS system at the French Institut Geographique National, C.R. Geoscience, DOI:10.1016/j.crte.2005.03.002. 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 1311 from 20-02-2005 to 26-02-2005 Total number of stations = 43 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.86 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 20-02-2005 22944 25 22919 0.1 21-02-2005 22589 63 22526 0.3 22-02-2005 23805 28 23777 0.1 23-02-2005 22021 21 22000 0.1 24-02-2005 19896 19 19877 0.1 25-02-2005 22226 25 22201 0.1 26-02-2005 24022 14 24008 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 6188 6069 6676 5544 3294 4763 6872 SPOT2 4751 4508 4971 4567 4663 4972 4848 SPOT4 4942 5027 5135 5193 5079 5098 5184 SPOT5 7038 6922 6995 6696 6841 7368 7104 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.424 0.434 0.428 0.434 0.387 0.422 0.415 SPOT2 0.432 0.450 0.454 0.442 0.418 0.416 0.436 SPOT4 0.425 0.427 0.439 0.424 0.419 0.413 0.434 SPOT5 0.368 0.386 0.371 0.382 0.372 0.381 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 1463 1325 1447 1376 1190 1332 1453 AMTB 454 412 474 437 394 395 445 CADB 347 439 417 421 290 474 520 CHAB 128 99 116 187 214 246 248 CICB 342 395 437 460 389 420 456 CROB 386 345 305 160 230 251 326 DIOA o 485 490 494 466 380 420 461 DJIB 473 450 340 368 340 294 451 EASB 487 478 413 414 369 405 458 EVEB 124 65 85 127 148 112 82 FAIB o 983 915 1072 906 945 967 990 FUTB 393 445 457 421 372 464 466 GALA 449 293 455 324 379 429 485 GREB 549 517 553 615 493 558 601 HBKB 390 468 446 380 399 377 474 HEMB 465 469 414 344 402 412 370 KESB 400 326 403 344 407 336 381 KIUB 407 402 435 431 344 351 480 KOLB 513 472 515 528 468 435 557 KRAB o 921 895 916 841 735 848 917 KRUB 357 343 299 222 183 333 362 LIBB 349 466 417 290 321 443 429 MAHB 402 399 374 274 340 307 278 MATB 331 501 460 360 426 367 422 METB 302 312 344 322 254 269 339 MORB 323 317 384 359 249 331 348 MSPB 515 512 610 589 411 516 482 PAQB 533 490 506 455 380 418 437 PDMB 442 457 453 430 434 460 416 REUB 401 362 352 336 218 335 402 REZB 707 739 670 488 387 630 674 ROTA 0 0 0 140 147 0 0 SAKB 673 707 775 702 617 767 717 SALB 388 377 397 280 196 427 427 SANB 547 496 564 549 442 540 619 SODB o 516 479 486 490 399 443 567 SPJB 1549 1497 1611 1516 1256 1445 1568 SYPB 1345 1278 1281 1360 1270 1266 1395 THUB 1302 1259 1341 1150 1099 1295 1210 TLHA 502 544 482 408 313 423 509 TRIB o 501 495 426 440 459 404 436 YASB 0 0 530 578 455 473 485 YELB 807 816 817 711 697 758 842 6.2) stations rejected from solution ------------------------------------ the following stations were not given in the output sinex solutions : day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- MANB 41 72 72 56 91 89 62 this is due to the lack of data or to some stations related problems as described below MANB 1 8 2004 1 1 2010 equipement problem, received on ENVISAT only 6.3) statistics per station and per satellite (stations in sinex) ----------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- ADEB 2499 2031 2156 3179 AMTB 846 608 685 1132 CADB 909 663 682 903 CHAB 134 232 443 457 CICB 754 673 751 1053 CROB 670 361 361 773 DIOA 717 850 818 974 DJIB 562 668 757 854 EASB 733 913 889 878 EVEB 0 378 374 0 FAIB 1902 1137 1359 3140 FUTB 814 569 828 995 GALA 714 639 745 870 GREB 978 798 1121 1442 HBKB 788 686 726 962 HEMB 912 634 666 1141 KESB 743 576 564 823 KIUB 775 796 612 882 KOLB 826 784 974 1366 KRAB 1549 1396 1556 2196 KRUB 577 478 495 753 LIBB 698 712 680 956 MAHB 742 456 514 887 MATB 850 551 609 1090 METB 537 561 376 721 MORB 540 655 579 650 MSPB 1249 669 938 1057 PAQB 679 802 911 1244 PDMB 884 653 706 1199 REUB 572 522 486 975 REZB 1668 481 751 1741 ROTA 0 307 0 0 SAKB 1347 1269 1360 1382 SALB 604 606 712 893 SANB 972 876 936 1421 SODB 764 859 902 1234 SPJB 3073 2253 2350 3530 SYPB 2567 1547 2199 3768 THUB 2657 1896 2001 2686 TLHA 963 492 521 1631 TRIB 770 740 809 1141 YASB 733 583 627 761 YELB 1641 950 973 2453 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- MANB 0 515 0 0 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 15.7 18.5 12.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -18.1 +- 1.4 mm TY = 17.2 +- 1.4 mm TZ = 10.7 +- 1.3 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.5 +- 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) ------------------------------------------------------------------ 7 1.10 1.16 ============================================================== ------------=_1112381233-2728-12 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 ------------=_1112381233-2728-12--