This is a multi-part message in MIME format... ------------=_1115227615-10648-0 ****************************************************************************** dorisreport 04-May-2005 19:26:51 Message No 0217 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1315 = 05079 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1315 from 20-03-2005 to 26-03-2005 DORIS name (using day of start): 05079 Days of year: from 2005/79 to 2005/85 ============================================================== 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/ign05079wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05079wd04.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 1315 from 20-03-2005 to 26-03-2005 Total number of stations = 41 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.22 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 20-03-2005 23094 11 23083 0.0 21-03-2005 22376 15 22361 0.1 22-03-2005 22656 81 22575 0.4 23-03-2005 20658 35 20623 0.2 24-03-2005 23554 15 23539 0.1 25-03-2005 23279 16 23263 0.1 26-03-2005 23167 34 23133 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 6710 6435 6603 6973 6821 6715 6980 SPOT2 4629 4480 4221 4755 4652 4301 4545 SPOT4 4945 4907 4878 5025 5029 5103 4999 SPOT5 6799 6539 6873 3870 7037 7144 6609 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.429 0.425 0.420 0.424 0.408 0.430 0.415 SPOT2 0.439 0.419 0.456 0.453 0.445 0.455 0.445 SPOT4 0.434 0.415 0.423 0.426 0.414 0.427 0.434 SPOT5 0.375 0.387 0.390 0.394 0.381 0.385 0.379 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 1488 1430 1465 1221 1482 1381 1406 AMTB 477 458 453 434 422 410 454 CADB 537 481 433 420 489 510 485 CICB 373 361 305 308 452 422 467 CROB 285 272 277 225 310 331 280 DIOA o 0 0 241 399 516 469 479 DJIB 190 132 170 192 379 339 373 EASB 391 457 434 393 463 463 417 EVEB 255 292 288 197 215 269 267 FAIB o 1053 969 991 951 961 979 1085 FUTB 462 404 467 376 473 424 428 GREB 583 620 554 509 526 555 549 HBKB 415 407 449 413 468 388 391 HEMB 364 342 544 378 430 432 402 JIUB 425 258 451 443 481 464 512 KESB 408 386 446 336 319 392 348 KIUB 555 539 551 494 569 562 586 KOLB 567 559 470 432 563 492 488 KRAB o 883 804 809 764 861 830 837 KRUB 420 411 430 272 285 429 407 LIBB 469 408 292 278 315 448 480 MAHB 320 335 372 296 415 394 405 MATB 409 461 470 425 418 420 429 METB 642 692 646 460 654 635 621 MIAB 0 0 0 265 475 311 163 MORB 375 311 283 268 331 339 371 MSPB 609 555 594 547 487 581 590 PAQB 398 535 436 405 509 469 389 PDMB 505 450 535 423 477 530 438 REUB 417 364 321 346 369 327 385 REZB 623 502 576 468 663 854 625 SAKB 721 701 698 678 657 713 774 SALB 432 383 468 338 164 0 0 SANB 615 558 465 470 573 515 548 SODB o 495 410 270 455 439 459 443 SPJB 1611 1601 1650 1300 1546 1488 1583 SYPB 1313 1459 1302 1286 1354 1260 1336 THUB 1298 1264 1299 1232 1133 1198 1226 TLHA 477 478 471 382 532 498 437 TRIB o 417 536 464 391 531 479 436 YELB 779 784 776 794 848 771 781 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 78 38 79 26 31 73 93 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 2964 2037 2220 2938 AMTB 1101 643 653 998 CADB 1165 810 866 800 CICB 734 588 725 955 CROB 837 239 335 749 DIOA 596 501 514 604 DJIB 393 483 419 565 EASB 793 843 831 939 EVEB 480 313 419 623 FAIB 2090 1176 1365 3091 FUTB 890 603 884 839 GREB 1156 753 1054 1383 HBKB 1059 648 705 778 HEMB 1028 539 655 1126 JIUB 1074 606 804 818 KESB 838 541 606 780 KIUB 1420 917 885 984 KOLB 970 797 1075 1155 KRAB 1608 1428 1411 1824 KRUB 740 602 626 986 LIBB 741 616 759 932 MAHB 960 505 512 823 MATB 1223 476 616 1029 METB 1416 758 893 1407 MIAB 594 184 200 357 MORB 615 698 537 566 MSPB 1359 800 985 1141 PAQB 909 789 833 967 PDMB 1024 754 747 1236 REUB 844 501 528 786 REZB 1973 475 596 1637 SAKB 1661 1241 1182 1262 SALB 561 437 462 553 SANB 1076 823 1042 1209 SODB 873 814 860 691 SPJB 3760 2280 2447 3110 SYPB 2910 1410 2146 3728 THUB 3218 1881 1927 2246 TLHA 1230 518 436 1482 TRIB 889 717 814 1149 YELB 1876 928 982 2267 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- MANB 0 446 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 21.0 19.0 22.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -11.4 +- 1.8 mm TY = 18.9 +- 1.9 mm TZ = 103.4 +- 1.6 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.3 +- 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 1.40 1.24 ============================================================== ------------=_1115227615-10648-0 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 ------------=_1115227615-10648-0--