****************************************************************************** dorisreport 29-Dec-2006 00:22:57 Message No 0765 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1402 = 06323 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1402 from 19-11-2006 to 25-11-2006 DORIS name (using day of start): 06323 Days of year: from 2006/323 to 2006/329 ============================================================== 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/ign06323wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06323wd04.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 1402 from 19-11-2006 to 25-11-2006 Total number of stations = 49 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 -------------------------------------------------------- 19-11-2006 22012 13 21999 0.1 20-11-2006 22146 3 22143 0.0 21-11-2006 22693 9 22684 0.0 22-11-2006 22906 2 22904 0.0 23-11-2006 23218 4 23214 0.0 24-11-2006 22696 5 22691 0.0 25-11-2006 23251 13 23238 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 6020 6150 6271 6247 6411 6116 6386 SPOT2 4456 4398 4510 4554 4639 4682 4838 SPOT4 4699 4776 4914 4851 4886 4909 4917 SPOT5 6824 6819 6989 7252 7278 6984 7097 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.434 0.399 0.387 0.397 0.377 0.392 0.406 SPOT2 0.407 0.450 0.430 0.438 0.415 0.416 0.408 SPOT4 0.402 0.402 0.414 0.422 0.412 0.421 0.407 SPOT5 0.383 0.355 0.347 0.351 0.358 0.354 0.365 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 1428 1429 1451 1436 1404 1456 1527 AMTB 604 562 591 468 578 601 564 ARFB 381 358 464 423 353 432 378 ASDB 0 0 47 55 87 56 71 CADB 431 433 477 503 483 438 521 CHAB 527 555 446 509 507 511 534 CICB 503 457 453 502 499 521 508 CROB 434 471 474 507 502 449 463 DIOB 421 451 465 503 459 444 513 DJIB 438 483 504 467 488 449 458 EVEB 289 309 276 274 252 228 327 FAIB o 1041 1095 1036 1056 1125 1018 1053 FUTB 377 410 428 408 414 419 417 GAVB 269 212 220 258 262 258 220 GREB 575 570 512 434 537 546 560 HEMB 391 508 360 368 360 345 452 JIUB 508 609 622 550 633 603 549 KIUB 605 605 637 646 646 647 640 KOLB 642 552 611 588 589 658 648 KRUB 384 405 393 454 459 367 372 LICB 319 384 416 505 402 467 374 MAHB 352 188 373 391 367 400 359 MALB 459 496 469 493 462 470 460 MANB o 0 0 0 39 77 83 65 MATB 518 597 592 604 567 495 628 METB 719 741 734 709 712 734 679 MIAB 490 388 492 522 502 467 505 MONB 545 604 560 569 592 551 511 MORB 438 436 513 430 516 476 448 NOWB 404 289 416 412 410 305 382 PAQB 0 0 196 470 445 368 510 PDMB 501 530 476 426 524 486 483 REUB 419 379 457 445 400 490 419 REZB 725 644 748 707 789 679 706 RIKB 489 563 497 505 520 462 491 RIPB 717 655 661 739 747 739 633 ROTB 1451 1472 1478 1422 1401 1444 1465 SALB 388 482 437 480 464 360 436 SANB 578 482 502 519 516 585 549 SCRB 0 254 491 495 521 523 471 SODB o 0 0 0 0 0 18 78 SPJB 1501 1513 1514 1444 1485 1493 1540 STJB 642 682 649 655 654 580 621 SYPB 1474 1519 1531 1455 1473 1514 1525 THUB 1409 1437 1366 1387 1384 1376 1339 TLHA 548 532 528 525 566 572 497 TRIB o 593 545 530 579 532 454 625 YASB 562 602 541 551 586 537 654 YELB 860 926 904 936 907 894 874 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 3877 1561 1766 3214 AMTB 1344 669 885 1199 ARFB 1091 421 520 847 ASDB 0 329 0 0 CADB 1019 719 710 960 CHAB 956 600 950 1160 CICB 1173 747 845 878 CROB 1229 496 623 1084 DIOB 884 826 754 877 DJIB 1113 711 726 922 EVEB 519 372 419 748 FAIB 2862 1126 1185 2552 FUTB 1035 530 529 962 GAVB 954 0 0 830 GREB 1387 592 675 1206 HEMB 1040 435 491 942 JIUB 1287 875 1000 1083 KIUB 1402 1054 1116 1178 KOLB 1319 1044 1057 988 KRUB 1092 582 627 858 LICB 978 656 512 845 MAHB 1011 362 364 831 MALB 1004 714 755 948 MANB 0 265 0 0 MATB 1408 690 884 1148 METB 1870 764 813 1764 MIAB 1210 627 595 1044 MONB 1262 803 821 1145 MORB 1137 523 804 949 NOWB 1090 363 491 819 PAQB 712 393 396 611 PDMB 1192 641 693 1079 REUB 1034 605 604 899 REZB 1993 734 678 1752 RIKB 1160 734 770 1021 RIPB 2157 536 610 1746 ROTB 3878 1560 1664 3289 SALB 1041 624 661 979 SANB 1212 812 750 1086 SCRB 872 603 613 746 SODB 0 100 0 0 SPJB 3820 1624 1777 3530 STJB 1543 873 830 1373 SYPB 3921 1684 1850 3308 THUB 3258 1773 1793 3114 TLHA 1553 505 631 1238 TRIB 1234 824 885 1115 YASB 1260 870 942 1124 YELB 2611 864 880 2154 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 18.2 18.1 17.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -2.9 +- 2.7 mm TY = 0.1 +- 2.9 mm TZ = 67.0 +- 3.4 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.4 +- 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 1.41 0.57 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/7mnRnJOmTDjMrize8Ct6xPpF+Ii!pfwhApZO80U9WmvTe8AImzk9WtoFP5viEynqYNRCMXZ6ISC4zySI2r9qfjclSPxGuBLomjGo07yint67q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuF9ZQZFPA55AdyX4G7gCFbPZE0akSgOxCkM8l!TtyVxcvW!hrkCh0TiuAx0XL3InfQ si ce message est indésirable (pourriel). 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