****************************************************************************** dorisreport 13-Oct-2006 21:54:19 Message No 0705 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1391 = 06246 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1391 from 03-09-2006 to 09-09-2006 DORIS name (using day of start): 06246 Days of year: from 2006/246 to 2006/252 ============================================================== 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/ign06246wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06246wd04.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 1391 from 03-09-2006 to 09-09-2006 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.75 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 03-09-2006 22805 10 22795 0.0 04-09-2006 22872 15 22857 0.1 05-09-2006 22946 10 22936 0.0 06-09-2006 23449 65 23384 0.3 07-09-2006 21024 44 20980 0.2 08-09-2006 16596 8 16588 0.0 09-09-2006 16555 8 16547 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 6611 6410 6251 6490 4119 0 0 SPOT2 4649 4545 4526 4581 4863 4769 4767 SPOT4 4639 4776 4870 4983 5026 4798 4784 SPOT5 6896 7126 7289 7330 6972 7021 6996 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.398 0.423 0.406 0.439 0.402 0.000 0.000 SPOT2 0.411 0.402 0.421 0.416 0.414 0.413 0.410 SPOT4 0.419 0.416 0.418 0.405 0.413 0.407 0.417 SPOT5 0.359 0.377 0.367 0.376 0.366 0.357 0.361 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 1508 1345 1431 1455 1203 894 847 AMTB 461 474 421 449 421 328 327 ARFB 172 128 404 347 419 201 275 ASDB 357 347 308 349 282 255 197 CADB 469 468 469 557 469 341 216 CHAB 0 0 0 35 606 511 466 CICB 490 437 506 490 465 316 331 CROB 340 328 399 328 296 217 153 DIOB 397 463 423 441 355 252 327 DJIB 464 477 480 453 366 298 331 EASB 424 512 485 433 407 348 387 EVEB 310 242 197 255 264 236 161 FAIB o 1009 969 1054 1047 899 700 614 FUTB 455 422 487 439 336 253 272 GAVB 210 218 185 257 193 95 90 GREB 557 480 355 477 461 372 365 HBKB 505 498 534 529 391 318 339 JIUB 293 392 530 597 508 235 371 KESB 549 520 493 505 341 274 261 KIUB 548 591 596 614 521 409 416 KOLB 605 494 557 650 488 384 381 KRUB 482 445 436 455 500 244 280 LICB 298 411 467 365 248 161 230 MAHB 386 319 358 361 281 204 242 MALB 384 448 472 435 357 326 324 MATB 475 510 459 451 308 300 343 METB 720 707 728 699 584 453 503 MIAB 357 352 375 485 423 291 255 MONB 531 532 600 499 431 313 369 MORB 477 490 486 551 435 343 216 NOWB 405 455 379 365 0 235 290 PAQB 518 508 554 552 420 337 377 PDMB 458 527 436 426 464 308 275 REUB 405 342 374 326 304 278 253 REZB 659 824 692 680 614 468 388 RIPB 673 654 701 770 709 357 381 ROTB 1437 1414 1400 1411 1387 889 904 SALB 441 562 475 400 442 320 333 SANB 492 497 424 486 583 342 305 SCRB 495 381 500 385 373 321 266 SODB o 435 394 497 511 239 85 0 SPJB 1490 1523 1475 1498 1241 917 1004 STJB 587 710 539 641 598 396 470 SYPB 1457 1442 1418 1444 1252 942 918 THUB 1298 1320 1374 1311 1049 770 754 TLHA 514 505 503 599 399 330 279 TRIB o 477 575 465 482 455 343 363 YASB 635 609 549 548 622 410 402 YELB 807 732 884 801 623 495 522 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 2491 1572 1745 3131 AMTB 790 642 590 1055 ARFB 782 293 371 645 ASDB 550 429 437 823 CADB 850 759 610 913 CHAB 129 482 518 580 CICB 838 701 742 952 CROB 546 447 445 730 DIOB 597 861 765 615 DJIB 704 733 708 916 EASB 693 758 933 950 EVEB 374 372 324 643 FAIB 1774 1142 1149 2483 FUTB 720 549 641 962 GAVB 571 0 0 750 GREB 841 560 642 1201 HBKB 840 701 636 1079 JIUB 868 545 722 1039 KESB 886 644 600 951 KIUB 875 973 1022 1151 KOLB 872 1050 943 945 KRUB 860 600 661 870 LICB 654 460 405 853 MAHB 591 442 390 893 MALB 666 656 687 917 MATB 758 512 701 1027 METB 1186 832 822 1716 MIAB 701 491 552 936 MONB 780 711 820 1145 MORB 759 746 805 888 NOWB 654 447 419 740 PAQB 809 865 866 957 PDMB 759 644 635 1042 REUB 610 479 500 827 REZB 1347 648 623 1854 RIPB 1588 542 599 1665 ROTB 2752 1559 1570 3236 SALB 765 668 706 1011 SANB 959 712 597 1036 SCRB 738 589 624 883 SODB 768 455 500 574 SPJB 2602 1615 1777 3432 STJB 1047 879 830 1401 SYPB 2401 1741 1801 3203 THUB 2111 1678 1522 2798 TLHA 1081 414 562 1230 TRIB 836 685 849 968 YASB 1025 926 963 1075 YELB 1234 839 868 2094 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 13.5 16.9 18.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -27.8 +- 1.9 mm TY = 22.1 +- 1.9 mm TZ = 14.8 +- 1.7 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.7 +- 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 2.43 0.87 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/46JtrzO2wZeXm!UHzoebq2tkHJH3N+Zp7N5XIStV+vmTPTMWBhSQV1NFEobXXMK1WJLgQay3J!cp!J1E7ZFUgjQ9Zfg32jbcvJjPK+qtSxS7q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuFNL!94xecrbBnebjoUOKAp9ZRoOefTAao86PaKEYYae0JXQ5HKRkVQlNOO9GFnNxV si ce message est indésirable (pourriel). 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