This is a multi-part message in MIME format... ------------=_1109176983-10281-44 ****************************************************************************** dorisreport 23-Feb-2005 17:42:55 Message No 0148 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Updated Report for week 1304 = 05002 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1304 from 02-01-2005 to 08-01-2005 DORIS name (using day of start): 05002 Days of year: from 2005/2 to 2005/8 ============================================================== 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/ign05002wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05002wd04.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 1304 from 02-01-2005 to 08-01-2005 Total number of stations = 45 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.10 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 02-01-2005 23286 24 23262 0.1 03-01-2005 24411 36 24375 0.1 04-01-2005 19811 16 19795 0.1 05-01-2005 23437 26 23411 0.1 06-01-2005 24106 22 24084 0.1 07-01-2005 21009 43 20966 0.2 08-01-2005 24546 17 24529 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 6859 7531 2864 6185 7179 4353 7262 SPOT2 4548 4550 4818 4782 4653 4550 4847 SPOT4 5107 5115 4949 5009 4934 4964 5205 SPOT5 6748 7179 7164 7435 7318 7099 7215 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.428 0.422 0.404 0.419 0.413 0.450 0.404 SPOT2 0.443 0.438 0.416 0.426 0.415 0.424 0.412 SPOT4 0.428 0.441 0.424 0.431 0.436 0.430 0.432 SPOT5 0.375 0.376 0.392 0.407 0.382 0.405 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 1430 1494 1309 1402 1470 1454 1521 AMTB 476 445 377 449 443 428 416 ASDB 233 224 215 233 155 162 218 BADB 535 619 412 596 556 511 664 CADB 381 467 333 503 482 356 345 CHAB 681 651 590 644 736 622 708 CICB 347 347 269 336 387 295 327 CROB 255 286 281 336 360 249 292 DIOA o 430 523 428 428 448 412 487 DJIB 344 472 391 486 392 370 472 EASB 444 458 300 445 398 391 569 FAIB o 1006 1014 809 1058 1031 894 1048 FUTB 318 440 390 442 472 383 417 GALA 440 478 339 426 447 333 482 GREB 357 425 353 427 482 491 522 HEMB 347 386 266 342 325 271 481 KESB 409 441 368 390 419 412 471 KOLB 243 250 202 225 255 218 270 KRAB o 667 677 462 740 735 583 521 KRUB 303 386 187 212 243 243 344 LIBB 445 433 372 420 412 383 418 MAHB 378 393 315 406 495 294 399 MATB 536 459 343 380 439 407 474 METB 651 676 580 630 670 639 704 MORB 344 412 271 317 355 325 377 MSPB 613 567 408 457 621 564 594 PAQB 520 456 439 478 511 441 493 PDMB 363 362 242 418 463 227 196 PURA 359 431 310 328 390 330 373 REUB 364 368 341 434 403 302 323 REZB 568 426 394 742 758 503 687 RIDA 257 301 267 264 315 364 373 RIPB 0 0 0 119 52 0 0 SAKB 662 630 486 662 666 541 725 SALB 0 16 134 180 168 261 373 SANB 498 551 372 490 596 480 458 SODB o 480 507 429 503 507 414 455 SPJB 1691 1620 1367 1518 1566 1472 1592 STJB 121 272 132 254 301 0 0 SYPB 1477 1534 1292 1435 1383 1449 1484 THUB 1281 1345 1193 1263 1140 1192 1338 TLHA 385 446 400 458 478 427 432 TRIB o 380 449 445 395 399 457 482 YASB 502 541 360 335 237 416 463 YELB 808 769 668 846 802 703 798 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 2750 2079 2293 3149 AMTB 984 648 597 1064 ASDB 538 96 240 697 BADB 1399 670 813 1298 CADB 813 693 703 851 CHAB 1380 1002 1182 1381 CICB 509 696 569 781 CROB 761 289 372 795 DIOA 788 743 864 893 DJIB 696 710 711 944 EASB 711 777 849 1054 FAIB 1948 1223 1340 2999 FUTB 795 548 781 886 GALA 750 743 696 919 GREB 787 700 712 1255 HEMB 840 485 471 995 KESB 857 572 675 924 KOLB 239 746 483 322 KRAB 1314 813 836 1857 KRUB 445 450 510 665 LIBB 720 666 727 1098 MAHB 844 560 555 927 MATB 993 514 711 1047 METB 1358 788 881 1612 MORB 525 740 621 622 MSPB 1226 704 957 1190 PAQB 797 809 899 1210 PDMB 490 610 563 889 PURA 666 513 614 859 REUB 669 559 547 867 REZB 1805 277 601 1678 RIDA 163 577 628 1047 RIPB 0 174 0 0 SAKB 1089 1129 1092 1368 SALB 294 314 258 370 SANB 822 759 990 1224 SODB 794 867 861 1104 SPJB 3393 2354 2368 3453 STJB 514 0 250 351 SYPB 2663 2053 2252 3934 THUB 2878 1891 1908 2584 TLHA 994 451 450 1485 TRIB 615 737 826 1075 YASB 711 644 785 922 YELB 1624 926 970 2346 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 16.1 13.5 14.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -11.7 +- 1.3 mm TY = 8.4 +- 1.5 mm TZ = 3.4 +- 1.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.4 +- 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 1.84 0.64 ============================================================== ------------=_1109176983-10281-44 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 ------------=_1109176983-10281-44--