****************************************************************************** dorisreport 21-Nov-2006 02:13:58 Message No 0735 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1396 = 06281 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1396 from 08-10-2006 to 14-10-2006 DORIS name (using day of start): 06281 Days of year: from 2006/281 to 2006/287 ============================================================== 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/ign06281wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06281wd04.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 1396 from 08-10-2006 to 14-10-2006 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.70 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 08-10-2006 21810 24 21786 0.1 09-10-2006 21395 16 21379 0.1 10-10-2006 18895 44 18851 0.2 11-10-2006 19881 12 19869 0.1 12-10-2006 22681 19 22662 0.1 13-10-2006 22768 29 22739 0.1 14-10-2006 22822 40 22782 0.2 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 6310 5977 6091 6248 6434 6337 6540 SPOT2 4310 4369 1651 1759 4418 4537 4542 SPOT4 4580 4344 4394 4842 4682 4933 4904 SPOT5 6586 6689 6715 7020 7128 6932 6796 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.414 0.415 0.392 0.392 0.391 0.397 0.401 SPOT2 0.417 0.425 0.438 0.407 0.427 0.409 0.422 SPOT4 0.420 0.409 0.410 0.420 0.426 0.417 0.413 SPOT5 0.370 0.367 0.355 0.358 0.358 0.357 0.371 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 1522 1330 1214 1492 1399 1480 1473 AMTB 527 415 409 486 557 585 574 ARFB 416 367 387 347 410 430 416 ASDB 211 288 198 352 334 259 327 CADB 479 469 418 407 536 477 413 CHAB 541 520 429 447 523 453 455 CICB 479 429 369 375 460 425 504 CROB 377 386 367 419 476 460 454 DIOB 436 456 356 304 491 371 428 DJIB 404 439 431 347 418 430 447 EVEB 258 292 224 241 249 246 282 FAIB o 1057 987 990 958 977 1106 1059 FUTB 375 415 364 426 445 418 435 GAVB 253 228 180 149 240 240 236 GREB 558 476 404 418 529 553 522 HEMB 335 418 326 296 310 409 350 JIUB 526 492 463 553 397 593 597 KESB 46 0 0 0 0 0 0 KIUB 566 616 525 528 598 590 624 KOLB 603 488 447 527 587 524 643 KRUB 415 414 361 380 421 435 426 LICB 378 363 262 354 371 223 416 MAHB 334 323 163 347 347 338 398 MALB 397 465 422 355 408 430 414 MATB 421 531 487 374 557 516 565 METB 715 635 629 570 722 743 709 MIAB 453 467 336 365 499 433 367 MONB 542 506 546 489 538 569 504 MORB 342 340 318 332 441 502 463 NOWB 431 413 316 459 360 347 481 PAQB 459 456 394 407 468 419 469 PDMB 389 455 362 402 500 573 507 REUB 455 362 383 394 376 418 424 REZB 658 808 606 624 704 633 689 RIKB 0 11 0 60 162 178 140 RIPB 740 656 616 712 750 720 714 ROTB 1387 1440 1352 1247 1393 1427 1443 SANB 568 529 419 406 565 513 510 SCRB 466 471 428 410 431 451 492 SODB o 436 305 399 420 405 414 442 SPJB 1429 1445 1295 1393 1477 1540 1474 STJB 0 55 567 506 664 625 567 SYPB 1495 1403 1333 1232 1408 1471 1507 THUB 1238 1277 1145 1178 1372 1361 1238 TLHA 599 541 475 508 538 634 527 TRIB o 491 602 408 364 561 466 454 YASB 581 618 392 471 505 558 556 YELB 860 840 832 824 883 904 885 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 3940 1493 1647 3231 AMTB 1265 620 729 1138 ARFB 1162 366 516 894 ASDB 788 268 460 611 CADB 1133 617 776 851 CHAB 969 463 904 1131 CICB 1124 499 794 847 CROB 1217 421 501 977 DIOB 835 623 728 817 DJIB 1096 558 666 857 EVEB 522 245 418 680 FAIB 2755 961 1205 2504 FUTB 1137 549 475 931 GAVB 852 0 0 755 GREB 1348 540 601 1152 HEMB 1018 357 371 850 JIUB 1316 729 837 1014 KESB 36 0 0 13 KIUB 1395 842 1020 1128 KOLB 1323 759 1025 954 KRUB 1108 510 603 841 LICB 845 473 493 749 MAHB 965 322 412 758 MALB 1050 535 687 889 MATB 1263 405 782 1179 METB 1831 583 791 1741 MIAB 1059 430 577 1032 MONB 1271 708 804 1072 MORB 1126 517 524 830 NOWB 1115 346 602 961 PAQB 1134 454 769 922 PDMB 1117 595 657 1000 REUB 1058 526 534 896 REZB 2094 473 668 1682 RIKB 602 0 0 0 RIPB 2213 573 561 1756 ROTB 3914 1213 1657 3229 SANB 1289 557 747 1112 SCRB 1131 537 708 922 SODB 1096 437 540 922 SPJB 3755 1445 1763 3374 STJB 1111 431 632 965 SYPB 3743 1405 1784 3213 THUB 3237 1357 1701 2749 TLHA 1629 473 699 1196 TRIB 1148 520 844 1032 YASB 1317 679 885 1071 YELB 2574 702 869 2108 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 14.8 16.6 15.3 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -21.5 +- 3.0 mm TY = 11.7 +- 2.8 mm TZ = 40.4 +- 3.3 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.8 +- 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 1.63 0.67 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/K0PyGhuDxXrglK16j4E52Xij1IFG4scSteEf63cgyiXj0cahgKG36BNxHIFtwOYAPLXSrbAtK7M3ss1pmNYYv0gYxEnh4O1UZmWONwPWAfe7q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuFyNkk!LsdJCEcplnltzeVdX5y18BQe+A8DO2KhedwDMhBCmXqvonEio53+MFVoEYm si ce message est indésirable (pourriel). Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr