****************************************************************************** dorisreport 01-Mar-2007 16:40:42 Message No 0814 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1411 = 07021 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1411 from 21-01-2007 to 27-01-2007 DORIS name (using day of start): 07021 Days of year: from 2007/21 to 2007/27 ============================================================== 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/ign07021wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07021wd04.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 1411 from 21-01-2007 to 27-01-2007 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.67 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 21-01-2007 23602 4 23598 0.0 22-01-2007 23013 7 23006 0.0 23-01-2007 21309 6 21303 0.0 24-01-2007 22860 11 22849 0.0 25-01-2007 23118 5 23113 0.0 26-01-2007 23062 0 23062 0.0 27-01-2007 22815 1 22814 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 6529 6247 4530 6043 6336 6246 6463 SPOT2 4793 4780 4626 4609 4572 4705 4467 SPOT4 5150 4883 4919 4993 4997 5079 4836 SPOT5 7126 7096 7228 7204 7208 7032 7048 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.405 0.398 0.413 0.405 0.388 0.395 0.393 SPOT2 0.415 0.412 0.410 0.439 0.417 0.427 0.428 SPOT4 0.412 0.420 0.414 0.402 0.413 0.414 0.414 SPOT5 0.358 0.362 0.368 0.368 0.346 0.362 0.350 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 1467 1410 1468 1411 1481 1416 1514 AMTB 602 583 528 594 601 574 606 ARFB 412 416 347 487 428 402 410 ASDB 334 305 325 348 364 316 390 BETB 419 396 439 465 415 450 377 CADB 458 467 479 521 491 481 441 CICB 507 468 434 529 492 515 531 CROB 490 511 548 524 485 464 503 DIOB 440 528 473 480 404 432 499 DJIB 460 488 391 511 485 493 507 EVEB 300 298 232 263 249 281 312 FAIB o 1108 1014 979 1065 1055 1073 1035 FUTB 380 441 400 457 357 377 422 GAVB 234 221 182 244 263 206 226 GREB 528 445 452 557 569 588 511 HEMB 358 381 408 269 406 431 395 JIUB 552 530 576 599 528 596 554 KIUB 607 633 604 644 624 620 674 KOLB 655 549 570 650 601 592 594 KRUB 377 403 444 284 0 0 0 LICB 520 463 462 436 399 380 410 MAHB 401 359 400 419 335 388 435 MALB 440 0 0 0 0 0 0 MANB o 508 459 458 498 474 482 494 MATB 600 613 545 502 548 603 612 METB 702 724 698 750 731 758 729 MIAB 515 464 418 410 523 432 439 MONB 499 551 564 566 561 550 566 MORB 451 476 460 539 416 489 470 MSPB 627 624 516 533 573 627 546 NOWB 412 306 253 406 340 279 298 PAQB 198 317 463 351 444 439 472 REUB 405 400 439 496 432 421 454 REZB 796 770 733 676 697 760 711 RIKB 490 483 485 436 456 487 515 RIPB 687 693 588 771 739 687 717 ROTB 1471 1457 1266 1373 1449 1429 1461 SALB 445 519 562 473 571 488 484 SANB 530 518 382 560 619 506 520 SCRB 461 465 444 461 447 513 502 SODB o 88 86 82 76 95 115 76 SPJB 1388 1467 1483 1514 1572 1561 1521 STJB 674 831 691 728 736 736 647 SYPB 1508 1490 1424 1463 1461 1547 1543 THUB 1302 1280 1426 1392 1395 1397 1360 TLHA 657 535 474 613 647 632 559 TRIB o 568 592 499 461 566 554 493 YASB 613 580 521 487 626 590 518 YELB 891 874 870 908 839 921 900 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 3933 1572 1750 3180 AMTB 1361 844 884 1207 ARFB 1086 419 554 943 ASDB 799 422 502 825 BETB 1015 614 684 819 CADB 1119 734 758 850 CICB 1137 759 735 967 CROB 1293 576 656 1151 DIOB 943 782 771 867 DJIB 1080 703 762 956 EVEB 518 358 441 702 FAIB 2712 1114 1213 2560 FUTB 963 583 515 950 GAVB 883 0 0 795 GREB 1274 676 651 1147 HEMB 1028 434 419 885 JIUB 1359 800 787 1164 KIUB 1400 1037 1097 1163 KOLB 1337 1013 1036 990 KRUB 587 315 324 437 LICB 1084 564 671 907 MAHB 1064 506 432 913 MALB 117 107 96 137 MANB 1267 649 632 961 MATB 1310 706 821 1310 METB 1859 791 841 1773 MIAB 1124 598 631 988 MONB 1230 790 797 1136 MORB 1043 713 764 954 MSPB 1453 660 879 1229 NOWB 915 184 431 886 PAQB 874 654 672 666 REUB 1107 583 584 918 REZB 2255 485 663 1927 RIKB 1167 692 767 918 RIPB 2087 607 608 1726 ROTB 3793 1468 1662 3300 SALB 1148 689 885 1052 SANB 1210 787 710 1056 SCRB 1088 607 732 971 SODB 0 624 0 0 SPJB 3677 1713 1830 3521 STJB 1630 1046 1110 1409 SYPB 3766 1778 1919 3259 THUB 3154 1674 1846 3106 TLHA 1636 564 748 1300 TRIB 1174 724 956 1078 YASB 1299 837 956 1056 YELB 2544 851 895 2153 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 14.3 22.9 20.0 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -18.0 +- 2.5 mm TY = 6.3 +- 2.6 mm TZ = 51.3 +- 2.2 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 0.85 0.56 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/JqP9VgsMy2urGAtUnBVJ4p39GpZhuTFLUU5eKQ8hWWbpayj1!8ZBYvQmcrgAeYhu2X+M5vyEiNW4972AAHV4uhC6Txvj9ajymrAiCPp7FtW8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1B8adZ12blqgB4tzIYac8q4phPlvX7q9z5d2vjbjFHS3BqlJq0fws309xutjQbw11 si ce message est indésirable (pourriel). 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