****************************************************************************** dorisreport 19-Jul-2007 02:04:03 Message No 0939 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1432 = 07168 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1432 from 17-06-2007 to 23-06-2007 DORIS name (using day of start): 07168 Days of year: from 2007/168 to 2007/174 ============================================================== 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/ign07168wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07168wd04.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.E. Bar-Sever, G. Tavernier (2005), DORIS as a potential part of a Global Geodetic Observing System, J. Geodyn., 40(4-5), 494-501, DOI: 10.1016/j.jog.2005.06.011 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. Week 1405 = 06344 : Use GIPSY/OASIS software installed at Institut de Physique du Globe de Paris 4) Global Statistics ==================== GPS week number 1432 from 17-06-2007 to 23-06-2007 Total number of stations = 52 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.05 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 17-06-2007 23415 6 23409 0.0 18-06-2007 23268 5 23263 0.0 19-06-2007 23742 8 23734 0.0 20-06-2007 23829 2 23827 0.0 21-06-2007 23900 6 23894 0.0 22-06-2007 23700 1 23699 0.0 23-06-2007 23622 5 23617 0.0 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 6581 6690 6806 6701 6704 6664 6794 SPOT2 4454 3865 3961 4283 4469 4440 4115 SPOT4 4873 5029 5241 5295 5101 4976 5094 SPOT5 7501 7679 7726 7548 7620 7619 7614 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.399 0.426 0.431 0.431 0.406 0.421 0.406 SPOT2 0.437 0.417 0.437 0.421 0.445 0.452 0.462 SPOT4 0.451 0.429 0.437 0.435 0.422 0.423 0.434 SPOT5 0.376 0.389 0.384 0.385 0.369 0.374 0.369 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 1399 1393 1401 1467 1461 1414 1412 AMUB 499 500 529 495 494 453 465 ARFB 376 371 366 427 459 426 426 ASDB 356 318 368 326 336 261 382 BEMB 1631 1582 1572 1660 1666 1685 1749 BETB 455 400 468 418 425 379 386 CADB 487 503 547 498 389 454 548 CHAB 708 739 659 746 709 723 642 CICB 476 495 493 454 459 428 498 CRPB 381 362 448 263 363 336 344 DIOB 393 410 425 407 452 484 493 DJIB 469 474 438 378 445 481 423 EASB 433 472 436 432 534 488 424 EVEB 277 255 238 280 303 273 269 FAIB o 986 1022 1002 1010 1037 946 1035 FUTB 320 455 394 419 380 409 376 GAVB 237 215 239 289 187 226 259 GREB 524 475 536 492 514 550 404 HBMB 491 494 543 455 499 470 527 HEMB 376 399 318 362 449 302 309 JIUB 493 520 566 347 550 555 505 KETB 575 586 502 576 575 608 520 KIUB 612 572 592 546 577 572 613 KOLB 582 518 626 591 564 595 600 KRUB 496 424 425 491 409 438 482 LICB 387 444 476 442 459 449 437 MAHB 173 346 291 364 317 214 433 MALB 456 487 449 422 485 423 408 MANB o 437 404 473 455 410 482 429 MATB 0 0 0 272 510 551 509 METB 661 743 688 693 714 726 661 MIAB 478 445 466 492 473 441 494 MONB 556 618 556 557 542 516 518 MORB 472 448 539 446 403 529 344 MSPB 585 469 603 529 552 539 514 NOWB 287 269 397 288 325 327 392 PAQB 466 411 488 438 454 501 447 PDMB 0 11 14 34 0 0 0 REUB 319 406 368 379 301 411 371 REZB 733 705 797 741 760 767 751 RIKB 468 439 446 401 458 440 387 RIPB 554 669 622 608 511 641 637 ROTB 950 936 952 948 725 634 703 SALB 552 541 486 504 578 431 560 SANB 517 475 555 596 465 502 553 SCRB 444 478 466 484 472 489 464 SODB o 443 396 501 437 360 440 487 SPJB 1493 1397 1447 1494 1477 1558 1339 SYPB 1307 1284 1265 1357 1267 1297 1299 THUB 1406 1367 1315 1338 1374 1372 1356 TLHA 570 513 558 605 570 499 560 YASB 568 539 480 648 625 496 593 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 3832 1589 1703 3141 AMUB 1212 566 640 1166 ARFB 1039 445 503 979 ASDB 941 384 526 832 BEMB 4608 1586 1884 4034 BETB 1056 647 738 879 CADB 1147 716 715 1008 CHAB 1641 985 1106 1368 CICB 1190 630 737 1002 CRPB 1037 480 338 813 DIOB 925 654 775 878 DJIB 1078 582 748 965 EASB 1136 708 890 1015 EVEB 523 416 388 747 FAIB 2782 1031 1176 2599 FUTB 1099 434 518 999 GAVB 985 3 2 808 GREB 1411 519 642 1223 HBMB 1146 661 778 1051 HEMB 1006 333 496 843 JIUB 1318 586 860 1145 KETB 1449 669 829 1129 KIUB 1434 814 1104 1269 KOLB 1317 932 983 1056 KRUB 1243 500 711 931 LICB 1081 527 660 942 MAHB 924 380 386 852 MALB 1018 610 757 951 MANB 1225 508 614 929 MATB 635 265 425 595 METB 1908 670 768 1800 MIAB 1202 649 641 1015 MONB 1291 657 879 1155 MORB 1092 584 738 918 MSPB 1305 671 814 1151 NOWB 954 404 435 661 PAQB 1212 517 616 1031 PDMB 8 97 0 5 REUB 952 351 499 952 REZB 2193 680 798 1911 RIKB 1175 488 643 934 RIPB 1911 393 549 1566 ROTB 2471 669 726 2361 SALB 1211 713 939 964 SANB 1262 642 731 1178 SCRB 1095 584 756 973 SODB 1176 460 627 1053 SPJB 3763 1501 1750 3530 SYPB 3545 1238 1456 3127 THUB 3279 1547 1856 3187 TLHA 1626 460 762 1319 YASB 1249 891 882 1070 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 15.9 14.6 15.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -35.0 +- 2.3 mm TY = 10.7 +- 2.3 mm TZ = 27.2 +- 2.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.1 +- 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 1.52 0.87 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr