This is a multi-part message in MIME format... ------------=_1106766298-10281-22 ****************************************************************************** dorisreport 26-Jan-2005 20:04:52 Message No 0125 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1302 = 04354 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1302 from 19-12-2004 to 25-12-2004 DORIS name (using day of start): 04354 Days of year: from 2004/354 to 2004/360 ============================================================== 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/ign04354wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04354wd04.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 1302 from 19-12-2004 to 25-12-2004 Total number of stations = 43 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.83 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 19-12-2004 22187 21 22166 0.1 20-12-2004 22574 18 22556 0.1 21-12-2004 22874 27 22847 0.1 22-12-2004 23646 20 23626 0.1 23-12-2004 23258 14 23244 0.1 24-12-2004 23802 27 23775 0.1 25-12-2004 24267 23 24244 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 6409 6403 6932 6789 6899 6979 7092 SPOT2 4565 4388 4402 4684 4489 4640 4729 SPOT4 4753 4662 4671 5033 4997 4922 4829 SPOT5 6439 7103 6842 7120 6859 7234 7594 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.412 0.404 0.430 0.425 0.418 0.421 0.428 SPOT2 0.418 0.413 0.417 0.402 0.439 0.457 0.446 SPOT4 0.440 0.427 0.437 0.424 0.423 0.428 0.443 SPOT5 0.396 0.399 0.401 0.395 0.377 0.378 0.393 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 1415 1432 1458 1513 1441 1393 1528 AMTB 430 387 428 484 393 456 427 ASDB 243 303 238 291 269 262 177 BADB 623 565 531 594 622 648 622 CADB 255 311 450 481 397 375 288 CHAB 657 732 700 676 611 709 683 CICB 0 0 0 0 0 176 381 CROB 301 271 347 321 301 259 377 DIOA o 479 425 454 524 481 470 453 DJIB 486 482 443 429 455 441 411 EASB 450 499 446 429 507 483 484 FAIB o 990 1064 1043 986 1051 914 1078 FUTB 464 476 486 414 420 390 469 GALA 419 465 464 421 456 429 448 GREB 515 457 446 569 466 520 477 HEMB 299 409 336 320 434 298 331 KESB 409 390 375 413 404 384 362 KOLB 476 459 582 524 463 484 562 KRAB o 570 661 639 600 572 640 645 KRUB 285 223 236 393 281 279 263 LIBB 404 420 410 425 395 442 424 MAHB 340 378 370 388 373 437 413 MATB 425 423 470 375 491 450 493 METB 744 652 713 739 679 656 675 MORB 249 302 382 294 333 373 317 MSPB 541 516 573 527 615 607 481 PAQB 469 508 525 500 404 458 543 PDMB 385 387 402 446 259 406 381 PURA 352 292 266 227 234 375 435 REUB 331 359 425 345 367 424 400 REZB 864 788 802 655 655 523 531 RIDA 228 261 311 282 268 285 259 SAKB 648 751 640 683 716 754 623 SANB 494 470 602 547 427 554 554 SODB o 484 492 553 468 474 510 485 SPJB 286 303 251 1074 1448 1588 1563 STJB 140 194 39 73 145 47 145 SYPB 1387 1370 1420 1535 1472 1443 1532 THUB 1429 1606 1552 1302 1255 1225 1222 TLHA 492 458 450 450 451 507 510 TRIB o 537 468 416 539 488 467 524 YASB 412 366 383 603 558 442 521 YELB 816 834 850 820 758 867 819 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 2978 2152 2191 3061 AMTB 1009 566 533 1173 ASDB 598 208 380 755 BADB 1580 740 772 1417 CADB 886 535 528 806 CHAB 1461 1083 1149 1379 CICB 131 136 116 256 CROB 774 421 405 733 DIOA 917 815 764 927 DJIB 889 710 722 975 EASB 873 904 924 1018 FAIB 2245 1117 1421 3059 FUTB 915 493 853 1013 GALA 862 717 803 877 GREB 1131 749 602 1350 HEMB 904 458 523 877 KESB 858 569 537 864 KOLB 989 790 918 1230 KRAB 1358 713 815 1869 KRUB 543 378 544 669 LIBB 822 663 695 1074 MAHB 962 503 508 938 MATB 910 586 730 1115 METB 1605 740 904 1717 MORB 560 569 589 634 MSPB 1345 783 899 1100 PAQB 849 785 891 1268 PDMB 801 490 596 1086 PURA 615 421 608 670 REUB 764 484 515 997 REZB 2080 499 665 1935 RIDA 0 521 529 1120 SAKB 1628 1137 1183 1237 SANB 1035 749 868 1371 SODB 897 854 830 1277 SPJB 1682 2114 1410 1725 STJB 482 0 172 143 SYPB 2755 2174 2201 3830 THUB 3406 1802 2121 2847 TLHA 1090 539 559 1486 TRIB 981 799 836 1086 YASB 951 939 724 912 YELB 1988 937 959 2421 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 14.3 14.0 16.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -11.2 +- 1.6 mm TY = 2.4 +- 1.4 mm TZ = -4.1 +- 1.3 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.9 +- 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 1.60 0.68 ============================================================== ------------=_1106766298-10281-22 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 ------------=_1106766298-10281-22--