****************************************************************************** dorisreport 23-Feb-2007 10:42:31 Message No 0808 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1409 = 07007 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1409 from 07-01-2007 to 13-01-2007 DORIS name (using day of start): 07007 Days of year: from 2007/7 to 2007/13 ============================================================== 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/ign07007wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07007wd04.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 1409 from 07-01-2007 to 13-01-2007 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.91 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 07-01-2007 22989 4 22985 0.0 08-01-2007 23321 2 23319 0.0 09-01-2007 22852 3 22849 0.0 10-01-2007 22623 2 22621 0.0 11-01-2007 22227 3 22224 0.0 12-01-2007 22315 3 22312 0.0 13-01-2007 21930 6 21924 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 6215 6498 6194 6186 6224 6197 5840 SPOT2 4476 4579 4354 4517 4412 4289 4345 SPOT4 5023 5002 5106 4973 4587 4831 4793 SPOT5 7271 7240 7195 6945 7001 6995 6946 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.414 0.408 0.390 0.393 0.393 0.392 0.438 SPOT2 0.410 0.437 0.437 0.416 0.413 0.408 0.422 SPOT4 0.416 0.418 0.407 0.417 0.446 0.439 0.423 SPOT5 0.366 0.363 0.353 0.357 0.359 0.359 0.382 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 1470 1448 1388 1425 1510 1390 1397 AMTB 575 557 554 589 501 525 556 ARFB 446 505 439 395 384 393 421 ASDB 324 357 434 325 378 343 320 BETB 349 214 449 405 405 448 395 CADB 483 506 545 449 477 402 425 CICB 428 533 495 485 521 475 405 CROB 525 476 452 443 479 506 465 DIOB 434 481 431 397 442 455 439 DJIB 497 500 488 405 491 452 490 EVEB 219 263 252 271 306 278 260 FAIB o 1117 1033 1071 1114 1054 1030 1091 FUTB 463 488 405 433 454 364 364 GAVB 201 251 108 111 220 218 215 GREB 552 529 505 590 603 461 417 HEMB 447 341 363 422 387 372 414 JIUB 601 613 525 550 583 493 540 KIUB 624 657 635 605 650 648 650 KOLB 550 599 611 582 593 604 485 KRUB 374 481 384 483 447 451 414 LICB 409 487 467 425 433 423 506 MAHB 380 399 393 340 440 378 365 MALB 436 464 188 0 0 0 0 MANB o 464 494 488 480 433 461 338 MATB 590 581 528 614 589 508 608 METB 717 720 697 720 695 721 737 MIAB 423 443 539 444 384 466 444 MONB 585 552 505 561 562 547 590 MORB 511 532 487 467 534 463 468 NOWB 372 370 490 406 350 497 364 PAQB 499 457 394 187 0 0 0 REUB 385 501 402 404 438 411 411 REZB 636 639 737 700 637 796 748 RIKB 450 439 436 534 497 500 535 RIPB 683 761 754 708 674 652 702 ROTB 1450 1422 1396 1468 1471 1461 1446 SALB 448 444 533 450 505 532 540 SANB 497 549 607 523 526 482 476 SCRB 486 455 440 525 518 462 480 SODB o 177 145 197 191 171 156 171 SPJB 1597 1556 1461 1553 1497 1445 1434 STJB 679 637 651 681 610 694 626 SYPB 1496 1565 1420 1507 1515 1501 1504 THUB 1442 1372 1377 1439 1366 1356 1366 TLHA 584 563 550 618 521 530 549 TRIB o 509 515 548 496 543 628 497 YASB 524 544 589 542 589 598 519 YELB 903 923 868 904 889 882 905 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 3862 1610 1692 3146 AMTB 1370 558 870 1241 ARFB 1098 474 563 965 ASDB 882 416 540 810 BETB 890 577 643 761 CADB 976 660 780 989 CICB 1069 690 726 1006 CROB 1254 517 612 1117 DIOB 805 818 749 775 DJIB 1146 634 791 949 EVEB 521 372 359 685 FAIB 2957 1087 1186 2565 FUTB 1024 513 630 994 GAVB 708 0 0 682 GREB 1365 573 636 1191 HEMB 1063 430 523 825 JIUB 1283 766 863 1150 KIUB 1409 959 1123 1279 KOLB 1233 917 945 1096 KRUB 1017 668 649 929 LICB 1070 644 630 969 MAHB 1019 435 456 958 MALB 340 236 237 322 MANB 1115 623 637 948 MATB 1338 694 846 1274 METB 1802 723 848 1808 MIAB 1126 630 536 1018 MONB 1318 688 879 1134 MORB 1167 695 773 951 NOWB 1100 459 560 861 PAQB 561 268 337 481 REUB 1076 470 605 964 REZB 2093 660 560 1748 RIKB 1147 683 758 985 RIPB 2156 546 633 1767 ROTB 3921 1551 1627 3288 SALB 1199 720 760 944 SANB 1263 679 700 1172 SCRB 1110 684 706 957 SODB 0 566 648 0 SPJB 3790 1599 1820 3594 STJB 1509 807 1014 1392 SYPB 3916 1665 1925 3276 THUB 3308 1651 1855 3166 TLHA 1683 502 601 1295 TRIB 1166 909 889 961 YASB 1277 880 860 1062 YELB 2591 775 926 2196 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 15.8 22.4 14.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -7.6 +- 2.3 mm TY = -5.1 +- 2.3 mm TZ = 17.2 +- 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 1.41 0.57 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/KtavYsjUKjodnINLAZsHUuzEHDydmzQtYIXbZOfbcW2SCiyFNukVHsxfdSuCFTh5xFzQNC685m6s0DWhOqV6f!XOfMtL73KPZmlsZ+1VPYa8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1NL!94xecrbAgEbDUoYwlF8cQWiIlpKXgEICyl8YTBaC49bGD!zSdgjmTLTqwMlDR si ce message est indésirable (pourriel). 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