This is a multi-part message in MIME format... ------------=_1103242809-6928-13 ****************************************************************************** dorisreport 16-Dec-2004 22:29:09 Message No 0088 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1296 = 04312 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1296 from 07-11-2004 to 13-11-2004 DORIS name (using day of start): 04312 Days of year: from 2004/312 to 2004/318 ============================================================== 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/ign04312wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04312wd04.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 1296 from 07-11-2004 to 13-11-2004 Total number of stations = 44 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 3.90 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 07-11-2004 22786 38 22748 0.2 08-11-2004 0 0 0 0.0 09-11-2004 17832 31 17801 0.2 10-11-2004 19493 85 19408 0.4 11-11-2004 22165 75 22090 0.3 12-11-2004 20400 15 20385 0.1 13-11-2004 21508 13 21495 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 6847 0 5198 4474 6544 5513 6389 SPOT2 4395 0 1264 4043 4279 3908 4047 SPOT4 4771 0 4657 4521 4769 4674 4312 SPOT5 6735 0 6682 6370 6498 6290 6747 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.443 0.000 0.445 0.557 0.461 0.407 0.434 SPOT2 0.459 0.000 0.452 0.468 0.454 0.452 0.453 SPOT4 0.469 0.000 0.433 0.470 0.449 0.428 0.423 SPOT5 0.396 0.000 0.417 0.423 0.412 0.370 0.381 NB: Day 2004-313 was not used because of the geomagnetic storm this day will be reprocessed later on using a specific procedure 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 1523 1415 1068 1460 1471 1486 1584 AMTB 468 438 440 376 483 464 467 ASDB 192 234 82 162 175 191 141 BADB 564 554 543 493 540 520 571 CADB 0 0 220 460 381 341 283 CHAB 705 612 566 735 706 657 704 CICB 474 424 420 424 433 460 470 CROB 316 363 369 319 284 242 336 DIOA o 527 0 0 0 0 0 0 DJIB 437 469 414 405 409 466 393 EASB 412 291 302 350 465 504 417 FAIB o 1139 1017 911 1011 1129 1156 1133 FUTB 448 370 404 198 400 464 454 GALA 344 381 362 409 310 436 430 GREB 531 531 452 462 533 426 501 HEMB 370 373 214 332 392 445 333 KESB 0 0 0 53 41 27 57 KIUB 301 259 230 0 0 0 0 KOLB 562 383 424 314 514 474 561 KRAB o 646 657 615 553 626 601 647 KRUB 160 213 165 423 402 216 197 LIBB 422 410 281 438 423 362 429 MAHB 70 69 30 76 60 67 76 MATB 422 446 377 378 480 488 445 METB 808 686 655 806 866 801 815 MORB 346 308 262 296 345 395 339 MSPB 569 470 420 559 566 552 545 PAQB 530 278 452 314 405 472 526 PDMB 459 463 269 373 464 402 448 PURA 435 449 347 248 228 163 117 REUB 418 424 336 345 348 342 448 REZB 1042 1088 870 1091 1088 1057 1056 RIDA 286 270 201 307 306 274 229 RIPB 728 719 594 643 766 787 463 SAKB 671 645 503 569 687 655 682 SALB 348 447 181 334 50 0 0 SANB 409 433 375 480 530 433 507 SODB o 466 311 408 388 444 367 534 STJB 377 285 250 192 378 204 469 SYPB 1560 1283 691 578 1485 1438 1491 TLHA 464 462 463 500 501 423 400 TRIB o 474 528 324 405 544 457 448 YASB 493 548 427 514 629 501 479 YELB 915 838 931 734 897 879 915 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 2899 1892 2255 3114 AMTB 963 586 655 1159 ASDB 586 259 310 70 BADB 1354 651 751 1255 CADB 503 359 488 452 CHAB 1593 822 1173 1384 CICB 839 691 746 1150 CROB 916 347 377 753 DIOA 168 141 122 113 DJIB 834 586 842 836 EASB 752 576 775 983 FAIB 2309 946 1482 3478 FUTB 790 418 707 931 GALA 715 562 637 881 GREB 1088 692 619 1389 HEMB 955 439 493 956 KESB 72 0 0 108 KIUB 223 167 175 231 KOLB 885 704 843 1137 KRAB 1410 756 760 1786 KRUB 394 396 458 682 LIBB 815 492 676 1044 MAHB 0 386 89 0 MATB 1145 492 648 963 METB 1716 971 1036 1807 MORB 596 585 556 648 MSPB 1193 660 939 1106 PAQB 807 596 740 1169 PDMB 894 501 646 1121 PURA 355 452 595 671 REUB 780 427 628 937 REZB 2576 898 1972 2345 RIDA 0 527 513 1069 RIPB 982 1020 1254 1634 SAKB 1337 900 1146 1294 SALB 406 236 303 568 SANB 901 657 637 1317 SODB 838 495 807 1055 STJB 1012 0 525 654 SYPB 2521 1502 1901 3229 TLHA 1171 354 480 1532 TRIB 833 679 819 1071 YASB 1130 801 866 1032 YELB 1840 841 1235 2712 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 19.7 20.6 23.3 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -27.1 +- 2.2 mm TY = 10.4 +- 1.7 mm TZ = -57.3 +- 1.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.3 +- 0.3 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) ------------------------------------------------------------------ 6 1.81 1.36 ============================================================== ------------=_1103242809-6928-13 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 ------------=_1103242809-6928-13--