****************************************************************************** dorisreport 05-Jan-2007 02:11:58 Message No 0771 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1403 = 06330 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1403 from 26-11-2006 to 02-12-2006 DORIS name (using day of start): 06330 Days of year: from 2006/330 to 2006/336 ============================================================== 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/ign06330wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06330wd04.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 1403 from 26-11-2006 to 02-12-2006 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.66 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 26-11-2006 23323 2 23321 0.0 27-11-2006 22522 5 22517 0.0 28-11-2006 18446 45 18401 0.2 29-11-2006 16263 4 16259 0.0 30-11-2006 19152 3 19149 0.0 01-12-2006 21662 6 21656 0.0 02-12-2006 21210 1 21209 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 6456 5958 1661 0 3176 4965 4570 SPOT2 4854 4682 4596 4739 4519 4768 4649 SPOT4 4840 4874 4948 4745 4698 4853 4827 SPOT5 7171 7003 7196 6775 6756 7070 7163 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.409 0.400 0.491 0.000 0.382 0.374 0.368 SPOT2 0.405 0.405 0.449 0.415 0.416 0.399 0.400 SPOT4 0.400 0.406 0.413 0.412 0.416 0.425 0.426 SPOT5 0.355 0.363 0.362 0.358 0.357 0.354 0.355 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 1400 1443 1007 948 1168 1325 1246 AMTB 557 611 475 413 487 501 456 ARFB 443 429 340 284 280 289 302 ASDB 71 28 53 25 105 371 270 CADB 343 463 406 331 302 460 399 CHAB 565 531 387 89 149 103 132 CICB 440 534 353 339 353 446 379 CROB 491 467 375 278 356 364 464 DIOB 515 505 360 333 334 484 534 DJIB 475 507 385 301 433 426 365 EVEB 264 261 245 197 248 286 256 FAIB o 1010 1019 821 698 870 845 864 FUTB 425 409 284 280 310 392 355 GAVB 229 234 126 125 185 210 184 GREB 587 542 442 396 383 380 408 HEMB 430 420 244 251 334 272 374 JIUB 606 589 504 400 433 433 451 KIUB 625 679 510 454 456 542 520 KOLB 527 531 441 432 472 600 458 KRUB 408 349 300 258 219 266 298 LICB 455 478 282 310 426 342 329 MAHB 384 387 325 237 272 342 286 MALB 490 475 319 331 381 388 419 MANB o 98 89 66 245 364 390 391 MATB 615 568 384 400 452 493 523 METB 748 740 484 478 592 634 584 MIAB 466 425 418 325 381 441 395 MONB 572 612 482 393 421 509 520 MORB 472 487 405 319 299 356 337 NOWB 337 306 277 237 415 285 349 PAQB 467 380 272 304 361 407 387 PDMB 595 452 350 303 381 482 452 REUB 389 464 390 325 311 369 348 REZB 684 584 437 444 676 577 413 RIKB 541 502 345 330 357 383 460 RIPB 701 735 606 428 450 606 614 ROTB 1469 1395 1026 870 1079 1244 1197 SALB 519 486 254 308 355 472 452 SANB 500 525 498 421 336 497 381 SCRB 459 491 351 330 338 459 329 SODB o 79 78 77 109 86 89 69 SPJB 1574 1488 1077 992 1254 1257 1269 STJB 677 612 528 396 549 609 546 SYPB 1507 1456 1148 600 489 1319 1332 THUB 1450 1421 1079 827 1067 1135 1276 TLHA 476 402 338 374 475 361 383 TRIB o 531 488 409 341 491 432 553 YASB 611 550 440 446 482 533 592 YELB 891 942 728 514 661 817 744 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 2374 1620 1698 3179 AMTB 810 680 856 1253 ARFB 525 498 516 928 ASDB 204 350 182 244 CADB 612 732 610 865 CHAB 404 674 416 497 CICB 615 613 749 996 CROB 695 430 651 1144 DIOB 517 934 836 863 DJIB 596 686 754 965 EVEB 329 448 375 687 FAIB 1439 1091 1190 2611 FUTB 575 519 508 990 GAVB 609 0 0 801 GREB 744 714 606 1184 HEMB 601 495 461 857 JIUB 738 710 941 1137 KIUB 611 1040 1091 1252 KOLB 610 968 984 1006 KRUB 481 511 636 757 LICB 524 639 683 889 MAHB 595 462 427 886 MALB 571 736 755 852 MANB 224 667 361 470 MATB 695 681 854 1301 METB 989 783 829 1787 MIAB 689 641 643 979 MONB 873 750 857 1149 MORB 487 664 686 951 NOWB 510 260 639 887 PAQB 550 591 590 981 PDMB 734 658 650 1084 REUB 558 561 577 998 REZB 1111 470 637 1746 RIKB 485 771 857 908 RIPB 1346 594 618 1752 ROTB 2009 1593 1648 3256 SALB 684 653 772 958 SANB 723 726 676 1132 SCRB 641 595 724 933 SODB 0 592 0 0 SPJB 2195 1702 1767 3466 STJB 857 922 836 1402 SYPB 2210 1506 1564 2805 THUB 1796 1765 1828 3024 TLHA 655 394 619 1245 TRIB 600 847 956 1010 YASB 869 931 968 1040 YELB 1545 865 910 2158 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 15.7 19.7 17.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -11.9 +- 2.4 mm TY = 11.4 +- 2.4 mm TZ = 49.5 +- 2.0 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 0.96 0.85 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/oE656hYHd3H4kDATVXvVNPuEq!yl0NWbDTBvylPKnNbLPl5Zp0UtKJ5WGm7jCWWvYNRCMXZ6ISC4zySI2r9qfjclSPxGuBLomjGo07yint67q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuFNL!94xecrbAcCwk5QaMIPMrzJBxW8QWpeGRvgX9BBEJPfJ8BOxHAENf2NOaaQRnw si ce message est indésirable (pourriel). 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