****************************************************************************** dorisreport 07-Apr-2007 13:33:51 Message No 0842 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1416 = 07056 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1416 from 25-02-2007 to 03-03-2007 DORIS name (using day of start): 07056 Days of year: from 2007/56 to 2007/62 ============================================================== 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/ign07056wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07056wd04.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 1416 from 25-02-2007 to 03-03-2007 Total number of stations = 51 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.79 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 25-02-2007 24086 7 24079 0.0 26-02-2007 23497 7 23490 0.0 27-02-2007 23599 14 23585 0.1 28-02-2007 24521 5 24516 0.0 01-03-2007 24157 10 24147 0.0 02-03-2007 24409 13 24396 0.1 03-03-2007 25196 49 25147 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 6687 6441 6382 6731 6269 6549 7120 SPOT2 4679 4683 4839 4847 4760 4593 4961 SPOT4 5302 5180 5189 5335 5342 5437 5312 SPOT5 7411 7186 7175 7603 7776 7817 7754 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.427 0.392 0.407 0.402 0.402 0.393 0.398 SPOT2 0.437 0.416 0.438 0.427 0.425 0.409 0.413 SPOT4 0.402 0.419 0.410 0.408 0.428 0.415 0.429 SPOT5 0.377 0.369 0.365 0.364 0.366 0.358 0.361 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 1525 1420 1345 1472 1300 1408 1482 AMTB 609 584 593 621 596 581 593 ARFB 434 304 368 435 464 409 413 ASDB 294 331 344 296 383 356 345 BEMB 241 243 265 874 1664 1575 1724 BETB 462 419 437 455 404 429 434 CADB 551 432 463 463 477 466 481 CHAB 733 734 742 757 710 740 711 CICB 524 478 500 470 454 458 537 CROB 432 480 533 512 495 455 486 DIOB 463 478 432 472 471 388 394 DJIB 467 435 472 472 456 491 449 EVEB 262 265 280 270 237 243 277 FAIB o 1012 1059 1085 1041 971 1019 1065 FUTB 393 410 482 467 438 428 403 GAVB 258 253 193 235 217 229 262 GREB 502 532 497 543 537 522 588 HEMB 330 351 482 381 375 403 325 JIUB 499 460 486 532 558 569 505 KIUB 643 592 665 668 643 630 633 KOLB 649 608 575 618 554 563 664 KRUB 358 329 383 306 386 394 393 LICB 459 385 343 434 368 357 402 MAHB 409 277 366 321 370 353 410 MALB 452 471 412 410 463 410 394 MANB o 490 436 456 438 442 444 473 MATB 508 605 570 610 467 553 584 METB 728 721 726 680 675 709 730 MIAB 554 468 378 499 517 484 454 MONB 585 573 640 604 575 558 552 MORB 445 467 526 468 392 453 486 MSPB 624 602 506 544 411 578 581 NOWB 416 311 208 331 251 294 272 PAQB 464 510 449 503 384 391 419 REUB 359 311 297 374 444 429 484 REZB 732 788 719 726 637 792 720 RIKB 463 469 496 449 431 448 457 RIPB 693 613 681 696 729 626 711 ROTB 1338 1299 1276 1181 746 1065 1053 SALB 489 480 529 436 520 506 431 SANB 602 426 510 527 564 572 553 SCRB 406 396 548 482 452 444 517 SODB o 86 89 89 70 71 76 103 SPJB 1497 1535 1569 1568 1498 1469 1545 STJB 598 717 646 741 771 680 729 SYPB 1427 1302 1452 1457 1312 1313 1419 THUB 1270 1246 1414 1383 1284 1375 1410 TLHA 621 612 593 607 516 609 640 TRIB o 472 600 528 543 581 487 473 YASB 599 620 477 469 548 546 510 YELB 816 828 887 919 808 815 876 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 3857 1458 1725 3179 AMTB 1386 867 880 1174 ARFB 1071 466 563 922 ASDB 784 436 537 757 BEMB 2058 1720 1092 1908 BETB 1021 660 703 849 CADB 1170 599 820 892 CHAB 1588 1084 1264 1338 CICB 1171 697 765 941 CROB 1223 590 586 1130 DIOB 881 715 715 871 DJIB 1116 668 782 918 EVEB 519 310 401 683 FAIB 2765 1063 1213 2508 FUTB 1074 573 595 896 GAVB 851 0 0 882 GREB 1312 584 745 1181 HEMB 1022 468 467 842 JIUB 1288 662 814 1042 KIUB 1437 1039 1111 1191 KOLB 1312 966 1069 1045 KRUB 995 411 592 870 LICB 922 558 569 871 MAHB 994 402 461 867 MALB 1002 633 711 899 MANB 1269 475 638 975 MATB 1251 768 865 1150 METB 1853 676 860 1774 MIAB 1212 629 595 1081 MONB 1219 790 1084 1078 MORB 1102 534 792 941 MSPB 1350 685 773 1195 NOWB 819 338 243 846 PAQB 982 643 711 960 REUB 989 473 587 867 REZB 2281 644 540 1824 RIKB 1061 627 728 958 RIPB 2105 446 708 1656 ROTB 3317 874 1029 2959 SALB 1094 867 817 966 SANB 1273 749 755 1105 SCRB 1137 607 769 915 SODB 0 599 0 0 SPJB 3824 1632 1905 3566 STJB 1611 920 1122 1369 SYPB 3548 1489 1738 3165 THUB 3130 1554 1856 3079 TLHA 1633 644 737 1343 TRIB 1131 806 847 1112 YASB 1307 645 851 1151 YELB 2386 733 931 2101 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 18.0 23.2 16.3 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -14.8 +- 2.2 mm TY = 20.9 +- 2.2 mm TZ = 59.1 +- 2.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.5 +- 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 1.23 0.67 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/FN31K3!nOfIaX+upXvFn5GfBdrkPXzLoJzaj4y3mvYqIsAz0RBXK4U6hWX+kfnFm!g81z2LZTzwqAFGda56ycrpmH!TufPuZlp8b0mFDRWq8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1V9qt6BGQ2buIgkgi+2EMLe!4ttw8wV17HPLAq6aC+LqOy6GnJ7ZQ0s46V9zsalNY si ce message est indésirable (pourriel). 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