****************************************************************************** dorisreport 11-Apr-2007 04:27:32 Message No 0847 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1417 = 07063 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1417 from 04-03-2007 to 10-03-2007 DORIS name (using day of start): 07063 Days of year: from 2007/63 to 2007/69 ============================================================== 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/ign07063wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07063wd04.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 1417 from 04-03-2007 to 10-03-2007 Total number of stations = 53 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.96 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 04-03-2007 24133 0 24133 0.0 05-03-2007 24809 0 24809 0.0 06-03-2007 24608 7 24601 0.0 07-03-2007 21953 37 21916 0.2 08-03-2007 24890 8 24882 0.0 09-03-2007 24723 3 24720 0.0 10-03-2007 25171 2 25169 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 6110 6881 6953 6906 6994 6790 7028 SPOT2 4898 4827 4731 4420 4802 4812 5064 SPOT4 5320 5316 5150 5224 5289 5319 5177 SPOT5 7805 7785 7767 5366 7797 7799 7900 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.401 0.413 0.402 0.392 0.397 0.392 0.390 SPOT2 0.432 0.417 0.425 0.440 0.415 0.395 0.418 SPOT4 0.413 0.422 0.412 0.395 0.406 0.417 0.414 SPOT5 0.376 0.375 0.367 0.354 0.349 0.358 0.359 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 1375 1376 1480 1412 1452 1482 1444 AMTB 607 611 600 574 604 600 559 ARFB 341 404 405 381 378 312 416 ASDB 433 307 337 315 290 367 279 BEMB 1575 1627 1697 1667 1716 1663 1684 BETB 426 443 446 431 384 389 467 CADB 424 400 468 466 480 476 439 CHAB 670 647 709 725 748 679 770 CICB 476 484 516 511 467 438 496 CROB 444 510 524 465 486 489 466 DIOB 326 485 460 487 211 258 480 DJIB 415 448 429 478 460 446 460 EASB 0 0 0 0 0 0 102 EVEB 311 258 253 241 240 283 307 FAIB o 975 1052 1054 1058 1027 1053 1023 FUTB 394 402 431 379 447 375 431 GAVB 165 204 225 273 257 221 119 GREB 528 552 464 533 569 609 565 HBMB 0 0 0 140 361 380 384 HEMB 356 385 324 398 365 426 344 JIUB 504 582 601 517 565 586 548 KIUB 611 630 587 651 635 631 651 KOLB 492 540 613 593 550 536 585 KRUB 466 373 297 479 462 416 460 LICB 351 412 431 468 358 379 186 MAHB 317 331 261 174 295 0 398 MALB 380 473 470 421 420 380 456 MANB o 478 472 450 489 470 456 486 MATB 513 606 563 494 470 560 550 METB 627 727 740 695 743 732 681 MIAB 531 448 494 528 489 419 475 MONB 563 621 618 609 604 579 568 MORB 438 485 470 419 467 518 483 MSPB 590 608 587 574 517 649 468 NOWB 315 272 347 422 256 311 370 PAQB 360 459 490 487 454 507 488 REUB 385 365 431 326 403 377 388 REZB 703 810 731 719 731 749 711 RIKB 440 507 475 368 474 485 482 RIPB 610 522 637 596 631 594 614 ROTB 1067 1178 1097 1171 1063 1133 1001 SALB 589 400 459 495 476 518 522 SANB 552 420 527 456 540 549 517 SCRB 475 488 505 454 501 501 397 SODB o 76 65 78 31 89 90 84 SPJB 1278 1549 1459 1492 1547 1530 1552 STJB 641 734 625 656 704 648 760 SYPB 1284 1404 1279 1346 1402 1368 1402 THUB 1303 1416 1386 1305 1361 1315 1337 TLHA 550 594 531 612 641 607 563 TRIB o 629 504 453 595 430 514 623 YASB 658 507 479 528 573 518 620 YELB 857 903 951 883 816 873 856 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 3791 1595 1765 3152 AMTB 1404 863 858 1214 ARFB 978 384 552 905 ASDB 841 347 481 835 BEMB 4530 1738 1823 3940 BETB 1053 599 659 858 CADB 1084 635 595 949 CHAB 1551 1069 1114 1362 CICB 1165 720 707 965 CROB 1240 550 680 1087 DIOB 723 692 674 686 DJIB 1010 712 733 942 EASB 0 106 0 0 EVEB 514 358 406 701 FAIB 2779 1053 1175 2532 FUTB 1068 441 533 988 GAVB 791 0 0 737 GREB 1421 632 673 1194 HBMB 500 344 0 474 HEMB 973 341 494 940 JIUB 1299 819 793 1167 KIUB 1406 941 1085 1258 KOLB 1173 920 978 978 KRUB 1169 532 647 876 LICB 887 538 609 725 MAHB 693 280 293 709 MALB 938 558 748 923 MANB 1224 651 631 934 MATB 1179 636 878 1191 METB 1784 794 783 1779 MIAB 1260 598 665 991 MONB 1240 754 1078 1191 MORB 1114 632 713 951 MSPB 1314 803 822 1207 NOWB 907 265 470 731 PAQB 1096 660 661 997 REUB 968 431 536 915 REZB 2182 559 634 1950 RIKB 1104 592 726 963 RIPB 1870 490 519 1458 ROTB 3213 715 968 3054 SALB 1126 653 936 1012 SANB 1225 736 675 1062 SCRB 1097 668 761 943 SODB 0 528 0 0 SPJB 3698 1611 1835 3514 STJB 1615 826 992 1476 SYPB 3497 1444 1597 3208 THUB 3241 1612 1776 3097 TLHA 1584 602 776 1317 TRIB 1193 752 945 1037 YASB 1238 920 931 1059 YELB 2544 830 858 2131 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 16.2 25.8 17.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -15.5 +- 2.1 mm TY = 9.9 +- 2.1 mm TZ = 40.2 +- 2.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.7 +- 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 0.77 0.43 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/clj5C0Xz1rRz+SWNer+79MKnosz!LhtjlsYM7DCv6gnKNDB4LhjklyAsFz2f37AdG08G1zqNigoIs6XJUxj0TJfSkBYMyBirfHsAnmdoi5i8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1lz63Uk5fl84xIaTAW7iSRuQjjPsBQn64c1X8QNRgfb5dOILL88aczLtpSJwB50cG si ce message est indésirable (pourriel). 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