****************************************************************************** dorisreport 23-Feb-2007 09:42:31 Message No 0806 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1407 = 06358 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1407 from 24-12-2006 to 30-12-2006 DORIS name (using day of start): 06358 Days of year: from 2006/358 to 2006/364 ============================================================== 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/ign06358wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06358wd04.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. Week 1405 = 06344 : Use GIPSY/OASIS software installed at Institut de Physique du Globe de Paris 4) Global Statistics ==================== GPS week number 1407 from 24-12-2006 to 30-12-2006 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.60 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 24-12-2006 22617 3 22614 0.0 25-12-2006 21937 1 21936 0.0 26-12-2006 19650 3 19647 0.0 27-12-2006 19303 0 19303 0.0 28-12-2006 18715 0 18715 0.0 29-12-2006 21673 12 21661 0.1 30-12-2006 21414 1 21413 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 5790 5200 5242 2808 2409 4866 4740 SPOT2 4499 4556 4623 4583 4469 4510 4579 SPOT4 5022 5029 4997 4893 4782 4970 5008 SPOT5 7303 7151 4785 7019 7055 7315 7086 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.400 0.377 0.376 0.370 0.400 0.382 0.412 SPOT2 0.429 0.415 0.424 0.412 0.404 0.414 0.397 SPOT4 0.409 0.407 0.415 0.425 0.421 0.407 0.416 SPOT5 0.356 0.350 0.357 0.347 0.358 0.363 0.369 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 1360 1435 1316 1011 1168 1248 1388 AMTB 580 586 554 415 498 495 506 ARFB 397 443 352 359 301 395 422 ASDB 403 308 301 300 307 294 363 BETB 455 387 390 378 340 396 347 CADB 472 469 409 409 382 443 455 CICB 477 486 500 359 368 399 431 CROB 453 407 434 382 353 385 403 DIOB 426 341 409 477 384 431 444 DJIB 472 380 482 421 375 429 410 EVEB 279 260 265 230 199 211 240 FAIB o 955 1031 1005 785 725 925 875 FUTB 441 381 314 313 301 389 340 GAVB 130 59 195 161 153 160 241 GREB 553 595 552 331 345 488 502 HEMB 364 379 359 290 354 216 288 JIUB 497 549 528 427 437 594 455 KIUB 636 595 605 503 502 566 525 KOLB 557 501 582 498 386 578 566 KRUB 323 473 348 318 402 298 334 LICB 399 300 517 367 369 432 404 MAHB 380 373 378 281 290 337 310 MALB 365 461 411 355 380 393 373 MANB o 482 487 466 371 354 444 394 MATB 509 474 572 528 448 441 419 METB 682 612 646 598 604 629 650 MIAB 506 472 463 346 310 380 479 MONB 505 540 460 476 515 536 451 MORB 530 496 441 333 313 500 424 NOWB 476 353 445 349 302 308 284 PAQB 375 298 480 415 363 411 406 REUB 440 371 397 346 318 493 351 REZB 671 673 690 491 554 627 510 RIKB 435 436 499 429 0 379 188 RIPB 760 707 643 622 483 625 584 ROTB 1418 1323 1407 1308 1029 1151 1221 SALB 515 505 381 406 428 372 325 SANB 550 542 501 450 359 510 517 SCRB 450 490 464 345 337 411 367 SODB o 74 102 88 90 82 110 105 SPJB 1409 1393 1376 1233 1154 1292 1354 STJB 659 700 579 527 544 582 577 SYPB 1440 1368 1402 1257 1027 1278 1418 THUB 1313 1323 1290 969 1088 1179 1131 TLHA 534 533 514 402 326 426 530 TRIB o 583 450 558 488 477 359 375 YASB 547 558 575 446 416 378 560 YELB 874 818 829 673 647 810 725 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 2769 1559 1702 3253 AMTB 978 671 893 1204 ARFB 793 480 519 971 ASDB 709 410 513 814 BETB 582 686 683 871 CADB 700 747 757 970 CICB 755 641 767 961 CROB 736 456 596 1144 DIOB 525 766 774 922 DJIB 685 735 728 938 EVEB 292 338 390 726 FAIB 1609 1045 1274 2570 FUTB 591 591 499 911 GAVB 491 0 0 691 GREB 969 696 638 1180 HEMB 640 507 397 802 JIUB 899 758 899 1044 KIUB 817 998 1123 1202 KOLB 793 888 1091 1050 KRUB 665 500 681 877 LICB 689 586 731 895 MAHB 652 458 450 928 MALB 577 684 739 844 MANB 816 661 641 987 MATB 820 619 829 1250 METB 1189 777 825 1784 MIAB 774 557 644 1093 MONB 809 829 841 1084 MORB 699 739 732 994 NOWB 675 291 625 1050 PAQB 659 555 673 988 REUB 739 558 601 958 REZB 1445 452 792 1688 RIKB 558 537 589 779 RIPB 1575 638 571 1810 ROTB 2735 1495 1670 3192 SALB 734 703 704 897 SANB 851 710 804 1186 SCRB 628 603 772 934 SODB 0 628 35 0 SPJB 2381 1714 1764 3565 STJB 1068 986 881 1363 SYPB 2592 1739 1838 3267 THUB 1961 1693 1873 2962 TLHA 991 439 659 1313 TRIB 737 736 862 1104 YASB 801 803 948 1100 YELB 1661 870 878 2178 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 16.7 16.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -11.0 +- 2.5 mm TY = -10.1 +- 2.5 mm TZ = 26.8 +- 2.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.7 +- 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 1.34 0.93 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/vo39OZ5mo1hQOKUQQ5R43!BNrbkcVv5fvv+0xIUP64AZuKlroy5!seiA5cYV8T76xFzQNC685m6s0DWhOqV6f!XOfMtL73KPZmlsZ+1VPYa8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1D7M!rBGhZrApzwM5QYZTpQ6pZPWW9yX3ykdyMRirqwO49bGD!zSdgptjD3i75vQ1 si ce message est indésirable (pourriel). 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