****************************************************************************** dorisreport 14-Apr-2006 16:39:05 Message No 0559 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1365 = 06064 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1365 from 05-03-2006 to 11-03-2006 DORIS name (using day of start): 06064 Days of year: from 2006/64 to 2006/70 ============================================================== 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/ign06064wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06064wd04.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, 337(7), 653-662, 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 Week 1341 = 05261 : Do not estimate the constant term of the relativity correction (this is already done by CNES by modifying the on-board oscillator, exactly like for GPS). Use a cutoff angle of 15 degrees (before that, no cutoff angle was used but now CNES is delivering data at very low elevation. Do not estimate tropospheric correction as random walk anymore. Use 1 parameter per hour (maximum) + 2.5 cm@ 1d as constraint. 4) Global Statistics ==================== GPS week number 1365 from 05-03-2006 to 11-03-2006 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.89 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 05-03-2006 22711 29 22682 0.1 06-03-2006 22260 14 22246 0.1 07-03-2006 22684 13 22671 0.1 08-03-2006 23342 18 23324 0.1 09-03-2006 19969 16 19953 0.1 10-03-2006 21163 6 21157 0.0 11-03-2006 21051 22 21029 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 6427 5963 6345 6442 6418 6440 6193 SPOT2 4664 4505 4472 4511 1813 2637 3097 SPOT4 4647 4776 4721 5120 4907 4934 4705 SPOT5 6944 7002 7133 7251 6815 7146 7034 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.406 0.392 0.395 0.414 0.394 0.409 0.405 SPOT2 0.420 0.419 0.408 0.413 0.404 0.415 0.441 SPOT4 0.452 0.435 0.415 0.423 0.402 0.398 0.410 SPOT5 0.354 0.355 0.368 0.363 0.362 0.362 0.342 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 1492 1349 1403 1416 1329 1405 1295 AMTB 428 455 450 458 429 400 468 ASDB 356 285 240 358 167 0 0 BEMB 1595 1641 1640 1624 1530 1380 1691 CADB 454 528 501 532 483 398 0 CHAB 688 634 710 645 554 638 605 CROB 361 360 350 334 281 303 327 EASB 423 458 541 465 395 425 449 EVEB 292 277 252 224 262 287 231 FAIB o 1057 954 1020 980 986 974 975 FUTB 430 299 473 454 283 396 437 GREB 513 514 448 512 455 459 539 HBKB 505 504 540 539 379 427 465 HEMB 0 0 0 0 0 284 352 JIUB 507 504 573 564 453 467 537 KESB 517 513 504 515 478 526 444 KIUB 597 658 636 623 565 538 597 KOLB 594 484 524 617 533 439 493 KRUB 0 0 197 414 421 376 408 LICB 364 441 479 427 127 393 223 MAHB 0 103 129 234 254 313 318 MALB 413 474 483 433 343 405 401 MANB o 443 471 408 465 432 385 419 MATB 466 468 414 431 377 414 403 METB 754 772 743 784 719 697 724 MIAB 464 485 484 467 462 464 383 MONB 518 555 584 568 493 432 525 MORB 523 415 380 540 374 411 510 MSPB 623 571 535 600 456 542 475 NOWB 279 332 380 415 268 310 282 PAQB 523 482 542 573 392 420 492 PDMB 420 511 544 469 446 544 476 REUB 348 271 357 312 385 296 347 REZB 649 722 764 745 592 796 655 RIPB 591 522 605 615 483 513 651 ROTB 1081 1206 1137 1197 1043 1088 1045 SANB 533 571 552 632 564 505 542 SCRB 494 460 504 506 321 464 448 SODB o 358 413 396 396 409 367 429 SPJB 1467 1449 1505 1399 1305 1467 1476 STJB 595 0 0 0 0 0 0 SYPB 1338 1305 1309 1345 1337 1182 1255 THUB 1282 1235 1188 1288 1122 1274 1121 TLHA 572 518 574 622 472 601 519 TRIB o 494 630 469 472 466 508 478 YASB 535 596 580 533 580 582 543 YELB 932 846 858 916 779 816 828 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 3771 1342 1750 3125 AMTB 1280 406 551 1043 ASDB 487 238 295 499 BEMB 4481 1489 1860 3691 CADB 1028 572 636 859 CHAB 1532 802 1089 1293 CROB 936 349 445 704 EASB 1105 657 868 896 EVEB 490 359 377 676 FAIB 2738 903 1110 2491 FUTB 1107 387 633 844 GREB 1341 485 608 1206 HBKB 1327 469 675 1085 HEMB 241 61 139 259 JIUB 1425 608 720 1095 KESB 1337 553 753 1044 KIUB 1533 798 1045 1216 KOLB 1251 751 950 952 KRUB 679 297 428 549 LICB 952 456 537 689 MAHB 478 164 291 517 MALB 1015 504 752 901 MANB 1146 494 700 900 MATB 1135 355 648 996 METB 2168 527 865 1817 MIAB 1196 550 662 985 MONB 1320 598 789 1168 MORB 1170 505 718 952 MSPB 1379 679 796 1150 NOWB 889 328 481 728 PAQB 1137 650 899 1000 PDMB 1271 610 630 1102 REUB 850 342 489 833 REZB 2066 525 715 1811 RIPB 1789 388 502 1450 ROTB 3354 810 868 3017 SANB 1378 801 861 1110 SCRB 1210 573 781 832 SODB 1194 357 572 866 SPJB 3840 1326 1789 3413 STJB 197 122 109 195 SYPB 3532 1164 1513 3170 THUB 3193 1286 1618 2710 TLHA 1629 368 809 1243 TRIB 1158 656 891 1021 YASB 1293 817 1007 1051 YELB 2611 657 872 2065 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 14.7 16.1 17.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -14.2 +- 1.9 mm TY = 11.5 +- 1.8 mm TZ = 30.9 +- 1.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.4 +- 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) ------------------------------------------------------------------ 7 1.61 0.65 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr