****************************************************************************** dorisreport 07-Aug-2007 02:23:14 Message No 0962 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1435 = 07189 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1435 from 08-07-2007 to 14-07-2007 DORIS name (using day of start): 07189 Days of year: from 2007/189 to 2007/195 ============================================================== 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/ign07189wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07189wd04.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 1435 from 08-07-2007 to 14-07-2007 Total number of stations = 51 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.96 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 08-07-2007 22991 5 22986 0.0 09-07-2007 22975 10 22965 0.0 10-07-2007 22655 2 22653 0.0 11-07-2007 23186 2 23184 0.0 12-07-2007 23178 3 23175 0.0 13-07-2007 23071 39 23032 0.2 14-07-2007 22821 12 22809 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 6398 6482 5860 6410 6447 6430 6377 SPOT2 4198 3976 4047 4375 4403 4304 3983 SPOT4 5060 4951 5248 5136 4953 4916 5045 SPOT5 7330 7556 7498 7263 7372 7382 7404 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.412 0.405 0.400 0.404 0.405 0.455 0.432 SPOT2 0.461 0.438 0.440 0.436 0.433 0.446 0.446 SPOT4 0.415 0.427 0.441 0.429 0.431 0.434 0.424 SPOT5 0.373 0.373 0.373 0.372 0.368 0.393 0.386 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 1438 1427 1356 1381 1435 1401 1406 AMUB 468 445 501 522 437 543 465 ARFB 447 388 460 406 392 434 431 ASDB 354 322 356 351 355 258 314 BEMB 1673 1610 1671 1628 1714 1593 1626 BETB 455 429 417 443 421 419 369 CADB 398 497 506 452 505 478 447 CHAB 726 745 690 709 764 681 659 CICB 455 443 493 425 488 465 497 CRPB 286 300 376 250 0 0 0 DIOB 522 522 458 447 451 465 477 DJIB 459 421 472 417 471 485 460 EASB 436 471 490 477 452 418 450 EVEB 244 263 244 224 322 240 252 FAIB o 1015 949 968 1001 928 981 963 FUTB 468 418 397 426 372 382 465 GAVB 294 319 278 236 217 210 240 GREB 487 487 523 535 479 509 488 HBMB 544 469 478 467 461 512 554 HEMB 373 376 455 395 380 444 378 JIUB 517 453 550 526 519 542 569 KETB 543 574 577 543 580 503 554 KIUB 625 559 554 544 520 562 605 KOLB 605 597 581 651 610 536 585 KRUB 396 453 470 414 447 459 452 LICB 489 481 449 378 423 466 449 MAHB 149 345 310 231 372 364 405 MALB 463 443 462 449 366 407 380 MANB o 448 475 418 462 496 432 388 MATB 524 564 483 515 604 561 485 METB 805 767 744 742 686 680 680 MIAB 436 487 436 439 390 442 418 MONB 584 586 496 512 547 547 614 MORB 548 470 404 497 387 460 495 MSPB 541 472 528 532 503 612 516 NOWB 270 344 350 256 321 290 245 PDMB 0 0 11 1 0 0 0 REUB 366 384 351 391 391 319 427 REZB 732 718 760 734 673 758 634 RIKB 349 382 433 379 486 509 416 RIPB 623 667 607 643 562 572 658 SALB 477 427 538 440 544 525 526 SANB 506 471 570 532 569 487 515 SCRB 475 443 421 534 492 489 478 SODB o 497 491 408 451 429 419 509 SPJB 1546 1411 1512 1483 1462 1541 1489 STJB 620 653 711 681 654 710 666 SYPB 1301 1300 1228 1324 1372 1295 1281 THUB 1325 1376 1279 1358 1322 1428 1377 TLSB 139 211 440 592 609 557 602 YASB 455 574 585 532 661 590 521 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 3841 1444 1695 3165 AMUB 1223 473 695 1169 ARFB 1079 494 548 972 ASDB 1000 401 487 847 BEMB 4596 1581 1858 4018 BETB 1019 592 719 853 CADB 1159 538 793 971 CHAB 1595 1055 1087 1380 CICB 1140 659 730 1002 CRPB 565 171 140 454 DIOB 1023 845 754 887 DJIB 1061 532 783 951 EASB 1151 723 903 978 EVEB 498 411 381 727 FAIB 2744 919 1183 2566 FUTB 1125 544 534 999 GAVB 1076 2 0 880 GREB 1371 659 588 1195 HBMB 1168 641 809 1057 HEMB 1002 487 624 891 JIUB 1393 696 862 1163 KETB 1378 731 760 1167 KIUB 1468 657 1122 1253 KOLB 1325 981 946 1094 KRUB 1156 578 656 960 LICB 1028 625 669 956 MAHB 912 290 404 795 MALB 965 565 759 948 MANB 1144 561 637 992 MATB 1268 666 767 1191 METB 2041 673 784 1903 MIAB 1204 575 657 1033 MONB 1330 646 907 1156 MORB 1176 554 766 922 MSPB 1376 482 886 1135 NOWB 814 318 423 719 PDMB 0 43 0 4 REUB 975 429 479 944 REZB 2223 545 741 1856 RIKB 1203 475 642 931 RIPB 1893 473 551 1586 SALB 1227 587 927 960 SANB 1265 704 685 1170 SCRB 1198 582 709 975 SODB 1196 502 623 1050 SPJB 3859 1571 1795 3606 STJB 1606 788 1086 1442 SYPB 3518 1341 1439 3105 THUB 3343 1477 1821 3206 TLSB 998 499 880 907 YASB 1279 909 796 1062 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 19.0 29.8 28.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -39.4 +- 2.3 mm TY = 22.1 +- 2.3 mm TZ = 5.1 +- 2.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.5 +- 0.4 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 1.47 1.05 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr