****************************************************************************** dorisreport 17-May-2012 01:17:37 Message No 2942 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1683 = 12099 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1683 from 08-04-2012 to 14-04-2012 DORIS name (using day of start): 12099 Days of year: from 2012/99 to 2012/105 ============================================================== Author: Pascal Willis 1) Contacts =========== Email pascal.willis@ign.fr Phone +33-1-4427-2484 FAX +33-1-4427-7340 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/ign12099wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12099wd10.snx.Z geocenter series in ITRF2008 pub/doris/products/geoc/ign11wd01.geoc.Z Earth Orientation Parameters time series in ITRF2008 pub/doris/products/eop/ign11wd01.eop.Z 3) Analysis Strategy ==================== The DORIS data have been processed using the Gipsy/Oasis software from 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/ignwd08.snx.dsc weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ignwd10.snx.dsc geocenter series in ITRF2008 pub/doris/products/geoc/ign11wd01.geoc.dsc Earth Orientation Parameters time series in ITRF2008 pub/doris/products/eop/ign11wd01.eop.dsc For references, the following papers are recommended : Willis, P., Y.E. Bar-Sever, G. Tavernier (2005), DORIS as a potential part of a Global Geodetic Observing System, J. Geodyn., 40(4-5), 494-501, DOI: 10.1016/j.jog.2005.06.011 Willis, P., Boucher, C., Fagard, H., Goginddass, M.L. (2010), Contributions of the French Institut Geographique National (IGN) to the International DORIS Service, Adv. Space Res., 45(12), 1470-1480 DOI: 10.1016/j.asr.2009.09.019 Changes in data processing: #week 1568: goa-test.2010.03.25b Use Bulletin-A as a priori instead of Bulletin-B #week 1574: goa-test.2010.03.31e Same executable but with /DEV scripts (all official version) #week 1579: goa-test.2010.04.28a Same executable without any DEV scripts #week 1580: goa-test.2010.05.25h Major change affecting solar array orientation for SPOT5 after Jan 2008 see details in Gobinddass et al., Adv. Space Res., 2009 #week 1597: goa-test.2010.09.20c More recent version, close to future 6.0 official version for tests #week 1599: goa-test.2010.05.25h Back to previous test version #week 1606: goa-6.0 Latest JPL official version #week 1487: goa-test-2011.03.17b Including Jason-2 and Cryosat-2 data deleting stations in the South Atlantic Anomaly (SAA) for SPOT-5 reprocessing done for weeks: 736-738 + 955-995 + 1124-1131 + 1487-1619 #week 1632: goa-test-2011.05.11b Minor change (deleting unecessary files) #week 1649: correct bug in estimating CRYOSAT2 drag Estimating every hour in the multi-satellite mode (instead of previously once per day) also estimate CONST_L terms for TOPEX and JASON2 every 8 hours (instead of previously once per day) #week 1656: test.2011.09.27c Minor change: do not use DEV scripts anymore 4) Global Statistics ==================== GPS week number 1683 from 08-04-2012 to 14-04-2012 Total number of stations = 46 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.66 the following satellites were used in the combination 2012 99 cryosat2 envisat jason2 spot4 spot5 2012 100 cryosat2 jason2 spot4 spot5 2012 101 cryosat2 jason2 spot4 spot5 2012 102 cryosat2 jason2 spot4 spot5 2012 103 cryosat2 jason2 spot4 spot5 2012 104 cryosat2 jason2 spot4 spot5 2012 105 cryosat2 jason2 spot4 spot5 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 08-04-2012 40347 84 40263 0.2 09-04-2012 36865 95 36770 0.3 10-04-2012 35782 89 35693 0.2 11-04-2012 36530 87 36443 0.2 12-04-2012 37397 58 37339 0.2 13-04-2012 38096 79 38017 0.2 14-04-2012 37841 84 37757 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 ----------------------------------------------------------------- CRYOSAT2 8435 8609 8141 8561 8472 8814 8594 ENVISAT 3340 0 0 0 0 0 0 JASON2 16110 15957 15594 15687 16512 16531 16461 SPOT4 4986 4803 4419 4666 4987 5137 5053 SPOT5 7392 7401 7539 7529 7368 7535 7649 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.470 0.473 0.443 0.458 0.470 0.459 0.449 ENVISAT 0.476 0.000 0.000 0.000 0.000 0.000 0.000 JASON2 0.417 0.413 0.420 0.410 0.402 0.422 0.413 SPOT4 0.443 0.427 0.444 0.440 0.431 0.425 0.437 SPOT5 0.415 0.418 0.414 0.409 0.411 0.407 0.411 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 --------------------------------------------------------------- AMVB 940 735 801 816 834 844 695 ARFB 553 524 450 539 543 579 518 ASEB 436 569 503 495 501 483 493 BADB 985 948 973 921 903 928 850 BEMB 2443 1878 1857 1965 1988 2001 1959 BETB 611 604 610 608 619 697 613 CADB 566 705 536 367 603 556 707 CHAB 1078 1068 1071 1101 1106 1025 1081 CIDB 680 512 630 515 527 590 690 COBB 1461 1335 1272 1273 1310 1247 1335 CRQB 881 783 790 752 907 834 828 DIOB 820 717 652 694 728 695 736 EASB 779 646 707 662 637 672 687 EVEB o 436 312 394 393 355 336 399 GR3B 468 513 464 486 500 485 502 GREB 971 909 824 805 903 847 880 HBMB 742 695 584 682 652 749 665 HEMB 764 578 617 515 661 688 661 JIUB 789 632 493 623 679 744 732 KETB 1043 971 1079 931 1007 935 961 KIUB 926 877 718 823 734 848 786 KOLB 765 757 674 702 644 708 661 KRBB 1226 1109 988 1101 934 1030 1008 KRWB 0 0 0 0 194 604 581 LICB 511 565 546 490 556 503 460 MAHB 604 431 497 483 424 359 513 MALB 0 0 99 623 502 611 494 MANB o 702 587 616 614 550 664 602 MATB o 949 856 881 887 863 872 924 METB 1228 1150 955 1179 1091 1062 1125 MIAB 817 764 790 645 618 711 661 MSPB 800 727 783 772 881 793 757 NOXB 646 634 694 706 666 634 613 PAUB 721 706 667 636 627 636 676 PDMB o 753 721 783 760 769 743 702 REUB 537 649 579 531 522 574 487 ROVB 1805 1519 1495 1423 1397 1468 1509 SALB 731 312 0 437 643 689 597 SANB o 740 733 666 754 617 665 646 SPJB 2075 1975 1779 1874 1865 1899 1854 STJB o 1175 1033 988 828 1057 982 1006 SYPB 791 663 714 586 655 625 619 THUB 2071 1797 1858 1892 1921 1934 1952 TLSB 963 1045 1035 881 1053 943 1021 YASB 843 720 741 791 781 788 749 YEMB 1340 1312 1367 1315 1317 1338 1349 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) ------------------------------------------------------------------------ CRYOSAT2 ENVISAT JASON2 SPOT4 SPOT5 -------------------------------------------------- AMVB 1105 96 2747 651 1066 ARFB 886 62 1441 459 858 ASEB 608 0 1744 391 737 BADB 1409 122 3034 659 1284 BEMB 5139 402 2671 1996 3883 BETB 647 63 1991 813 848 CADB 688 42 1742 720 848 CHAB 1257 63 3628 1244 1338 CIDB 638 60 1981 594 871 COBB 1574 146 4121 1687 1705 CRQB 1130 50 3413 367 815 DIOB 1017 69 2675 503 778 EASB 842 72 2224 755 897 EVEB 568 37 1005 408 607 GR3B 1038 0 2380 0 0 GREB 1145 100 3048 731 1115 HBMB 986 63 1644 1059 1017 HEMB 986 45 2032 545 876 JIUB 807 54 2244 597 990 KETB 1398 76 3802 557 1094 KIUB 1109 75 2592 881 1055 KOLB 900 86 1855 1074 996 KRBB 1472 133 3400 791 1600 KRWB 225 0 706 196 252 LICB 560 62 1910 416 683 MAHB 633 37 1518 388 735 MALB 288 0 1088 424 529 MANB 705 85 2106 578 861 MATB 1175 74 3689 256 1038 METB 1923 85 3890 209 1683 MIAB 943 99 2326 694 944 MSPB 1210 0 2368 810 1125 NOXB 832 45 2214 603 899 PAUB 685 54 2045 954 931 PDMB 976 0 2788 410 1057 REUB 868 53 1689 420 849 ROVB 2702 285 3660 1097 2872 SALB 615 40 1499 509 746 SANB 832 84 2437 414 1054 SPJB 5193 210 2779 1906 3233 STJB 1391 91 3272 925 1390 SYPB 1854 178 1189 391 1041 THUB 4738 182 3232 1687 3586 TLSB 1212 44 3100 1306 1279 YASB 965 107 2388 929 1024 YEMB 2067 0 3876 1090 2305 6.4) statistics per station and per satellite (deleted stations) ----------------------------------------------------------------------- CRYOSAT2 ENVISAT JASON2 SPOT4 SPOT5 --------------------------------------------- 7) External Comparisons ======================= (for information) 7.1) Stations coordinates ------------------------- Looking at the transformation results Comparing with solution tf_110726a at epoch of observations Weekly DORIS residuals in mm N E V ------------------- WRMS 11.1 16.5 13.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -12.4 +- 1.3 mm TY = 1.5 +- 1.2 mm TZ = 42.7 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.3 +- 0.2 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 0.34 0.47 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr