****************************************************************************** dorisreport 23-Feb-2007 09:20:23 Message No 0805 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1406 = 06351 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1406 from 17-12-2006 to 23-12-2006 DORIS name (using day of start): 06351 Days of year: from 2006/351 to 2006/357 ============================================================== 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/ign06351wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06351wd04.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 1406 from 17-12-2006 to 23-12-2006 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.73 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 17-12-2006 21418 0 21418 0.0 18-12-2006 21117 10 21107 0.0 19-12-2006 20117 4 20113 0.0 20-12-2006 20683 5 20678 0.0 21-12-2006 21796 1 21795 0.0 22-12-2006 22236 2 22234 0.0 23-12-2006 22142 3 22139 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 4615 4679 3687 4551 5341 5754 5591 SPOT2 4572 4459 4304 4220 4608 4625 4562 SPOT4 4989 4838 4854 4919 4796 4795 4900 SPOT5 7242 7131 7268 6988 7050 7060 7086 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.380 0.381 0.378 0.385 0.383 0.402 0.399 SPOT2 0.441 0.433 0.412 0.406 0.408 0.398 0.438 SPOT4 0.416 0.413 0.407 0.422 0.395 0.405 0.407 SPOT5 0.350 0.359 0.361 0.354 0.357 0.358 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 1278 1247 1128 1281 1431 1369 1484 AMTB 401 404 481 534 499 512 509 ARFB 380 347 289 362 338 454 429 ASDB 331 280 287 256 373 313 350 BETB 464 310 345 383 269 389 362 CADB 435 380 396 444 450 417 514 CICB 419 400 376 474 420 495 545 CROB 418 427 366 343 402 420 445 DIOB 424 487 356 402 503 474 477 DJIB 418 394 429 387 401 426 476 EVEB 224 244 202 260 307 291 228 FAIB o 795 828 887 900 910 1085 1016 FUTB 332 379 316 368 396 424 435 GAVB 204 60 200 255 136 91 232 GREB 411 342 427 478 526 560 541 HEMB 280 373 301 263 433 420 329 JIUB 441 442 452 438 420 580 555 KIUB 544 478 566 574 543 620 611 KOLB 614 462 517 659 562 510 610 KRUB 317 325 0 0 0 0 443 LICB 404 429 391 385 316 367 435 MAHB 352 305 261 348 263 349 389 MALB 383 434 390 399 451 477 423 MANB o 434 333 357 413 341 471 468 MATB 486 575 447 422 598 618 587 METB 643 624 597 636 723 713 672 MIAB 445 416 392 461 508 433 388 MONB 454 529 514 487 514 541 527 MORB 406 353 395 413 363 511 519 NOWB 351 329 401 320 446 367 309 PAQB 407 381 391 366 439 486 478 PDMB 99 0 0 0 0 0 0 REUB 317 363 278 413 343 363 428 REZB 675 561 637 557 657 704 608 RIKB 420 451 414 376 440 503 515 RIPB 547 642 527 569 578 686 688 ROTB 1176 1208 1130 1129 1267 1435 1323 SALB 440 448 358 327 479 404 463 SANB 449 415 430 525 452 471 482 SCRB 367 430 474 475 425 430 397 SODB o 78 77 68 86 97 87 73 SPJB 1316 1266 1122 1275 1459 1529 1406 STJB 581 541 554 572 498 700 599 SYPB 1306 1334 1215 1316 1412 1425 1469 THUB 1156 1172 1184 1184 1241 1354 1434 TLHA 402 484 429 372 489 510 484 TRIB o 445 519 483 386 626 485 440 YASB 512 523 400 558 597 569 546 YELB 749 803 740 697 808 856 846 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 3079 1654 1710 3179 AMTB 760 604 855 1241 ARFB 695 504 515 966 ASDB 582 413 527 803 BETB 569 625 621 843 CADB 769 718 701 1005 CICB 842 672 744 1000 CROB 774 465 667 1068 DIOB 717 886 811 810 DJIB 716 649 738 953 EVEB 370 404 359 693 FAIB 1751 1123 1177 2586 FUTB 681 502 594 999 GAVB 546 0 0 747 GREB 1026 557 636 1184 HEMB 682 411 583 841 JIUB 743 718 856 1121 KIUB 893 880 1114 1292 KOLB 1065 1011 983 1043 KRUB 266 266 290 352 LICB 609 633 623 945 MAHB 740 409 379 914 MALB 671 713 745 933 MANB 761 598 623 949 MATB 1066 707 874 1232 METB 1414 811 805 1768 MIAB 903 665 609 1006 MONB 931 746 880 1135 MORB 625 744 760 944 NOWB 779 390 636 840 PAQB 844 613 599 1030 PDMB 0 20 29 52 REUB 586 454 587 981 REZB 1358 637 745 1853 RIKB 757 717 833 957 RIPB 1554 567 631 1719 ROTB 2474 1519 1641 3293 SALB 708 708 782 898 SANB 812 637 712 1164 SCRB 805 595 754 965 SODB 0 576 0 0 SPJB 2710 1605 1803 3506 STJB 1085 849 855 1392 SYPB 2957 1706 1875 3262 THUB 2248 1721 1817 3126 TLHA 944 437 583 1332 TRIB 761 903 893 1001 YASB 1002 882 929 1060 YELB 1840 840 887 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 14.9 17.0 18.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -15.7 +- 3.0 mm TY = -4.0 +- 3.1 mm TZ = -2.7 +- 2.6 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.1 +- 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 2.14 1.05 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/oeAb!EX9Ew5J3Xsl12MDSRQ41EnMABOnxyxuK3dILSrSHQ5ixLs3C6BGTjM3aAvTOiNmnJBeWEYfc5xKlRfvjFpT0qsHfhvRGKsrpyawL6C8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1yTySZNI5QryT2km4Mef5MNCgaK1A9sU2!nKSeXj1+P649bGD!zSdgptjD3i75vQ1 si ce message est indésirable (pourriel). 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