****************************************************************************** dorisreport 05-Jan-2007 23:01:26 Message No 0773 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1404 = 06337 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1404 from 03-12-2006 to 09-12-2006 DORIS name (using day of start): 06337 Days of year: from 2006/337 to 2006/343 ============================================================== 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/ign06337wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06337wd04.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 1404 from 03-12-2006 to 09-12-2006 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 -------------------------------------------------------- 03-12-2006 21675 14 21661 0.1 04-12-2006 21732 14 21718 0.1 05-12-2006 21966 1 21965 0.0 06-12-2006 23028 5 23023 0.0 07-12-2006 22900 7 22893 0.0 08-12-2006 20854 1 20853 0.0 09-12-2006 21243 2 21241 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 4882 4935 5039 6358 6397 4397 4550 SPOT2 4661 4721 4832 4657 4473 4494 4403 SPOT4 4923 4920 4981 4913 4832 4821 5050 SPOT5 7195 7142 7113 7095 7191 7141 7238 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.400 0.396 0.393 0.405 0.402 0.396 0.395 SPOT2 0.410 0.413 0.404 0.427 0.449 0.424 0.443 SPOT4 0.404 0.421 0.396 0.403 0.413 0.418 0.415 SPOT5 0.357 0.370 0.367 0.355 0.368 0.357 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 1252 1342 1343 1423 1516 1127 1324 AMTB 511 536 488 569 561 489 545 ARFB 342 353 296 396 371 342 386 ASDB 291 344 293 338 357 221 239 CADB 396 484 449 404 439 385 470 CHAB 168 136 121 39 0 0 0 CICB 403 451 422 473 493 400 394 CROB 366 353 412 481 480 454 462 DIOB 429 380 512 543 526 512 414 DJIB 477 394 340 499 513 477 423 EVEB 209 262 275 303 282 228 217 FAIB o 812 887 920 1077 1071 1001 984 FUTB 378 333 358 431 404 402 302 GAVB 44 259 109 94 126 251 168 GREB 466 501 474 546 524 400 517 HEMB 281 280 367 472 312 357 355 JIUB 597 469 445 554 573 469 531 KIUB 591 517 499 651 640 524 585 KOLB 505 637 581 540 589 625 510 KRUB 244 268 235 435 311 274 316 LICB 366 416 407 392 509 242 375 MAHB 336 161 325 323 379 337 370 MALB 401 376 360 468 448 391 474 MANB o 382 369 434 439 450 395 408 MATB 492 465 536 614 589 528 442 METB 613 647 702 749 726 645 588 MIAB 371 461 454 415 439 426 506 MONB 585 519 472 587 567 579 546 MORB 493 439 361 496 462 406 410 NOWB 337 313 446 348 432 397 379 PAQB 436 441 456 471 528 479 391 PDMB 379 400 410 480 424 404 541 REUB 394 466 366 423 440 427 406 REZB 642 536 552 678 647 632 659 RIKB 428 366 457 563 472 454 431 RIPB 624 621 575 677 706 592 658 ROTB 1172 1196 1199 1476 1447 1218 1185 SALB 353 314 319 450 423 342 462 SANB 445 581 425 503 479 453 484 SCRB 419 432 411 506 441 376 468 SODB o 75 95 112 83 79 75 44 SPJB 1247 1392 1385 1555 1549 1295 1317 STJB 639 571 528 663 651 508 596 SYPB 1296 1343 1460 1503 1496 1478 1262 THUB 1248 986 1287 1404 1393 1229 1327 TLHA 351 474 528 493 537 506 499 TRIB o 462 371 621 518 538 541 381 YASB 380 490 641 548 540 470 524 YELB 784 742 831 949 919 916 843 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 3201 1513 1723 3239 AMTB 1068 647 895 1194 ARFB 638 427 558 967 ASDB 597 445 481 714 CADB 761 684 787 922 CHAB 117 352 0 0 CICB 758 670 761 965 CROB 997 429 575 1121 DIOB 873 802 803 922 DJIB 891 737 731 932 EVEB 386 345 403 722 FAIB 2101 1096 1245 2550 FUTB 799 538 547 908 GAVB 435 0 0 709 GREB 1036 572 751 1176 HEMB 731 494 466 814 JIUB 1016 836 853 1075 KIUB 918 1022 1108 1210 KOLB 1068 917 1081 1097 KRUB 563 546 476 762 LICB 784 598 632 853 MAHB 726 418 356 857 MALB 737 690 739 898 MANB 861 622 573 1009 MATB 1013 715 826 1247 METB 1439 765 857 1760 MIAB 922 612 567 1092 MONB 1225 837 851 1060 MORB 837 592 831 988 NOWB 891 331 531 1035 PAQB 1016 647 702 981 PDMB 799 555 709 1110 REUB 915 603 623 942 REZB 1557 536 655 1758 RIKB 919 728 692 967 RIPB 1608 584 636 1814 ROTB 2697 1534 1646 3279 SALB 755 667 587 898 SANB 801 704 782 1187 SCRB 877 619 719 947 SODB 0 570 0 0 SPJB 2853 1706 1804 3623 STJB 1111 933 919 1310 SYPB 3365 1690 1892 3181 THUB 2496 1699 1877 3027 TLHA 1138 503 603 1293 TRIB 882 785 837 1100 YASB 911 791 913 1117 YELB 2209 885 894 2213 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 16.0 16.8 17.3 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -10.9 +- 2.2 mm TY = -4.0 +- 2.2 mm TZ = 23.9 +- 2.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.8 +- 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 1.28 0.58 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/6oSxHokF+ffvIF9aX824y!7iMF4WMez+nOUYolDTZT1oysvcZ7nmZgDe6g!0Q7N7YNRCMXZ6ISC4zySI2r9qfjclSPxGuBLomjGo07yint67q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuFTsuCOBQQmu4LzqyvblZea+RHW7ijBZp7OfOyYEuR4a5PfJ8BOxHAEAAjWNIXit9O si ce message est indésirable (pourriel). 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