****************************************************************************** dorisreport 26-May-2012 07:16:37 Message No 2955 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1685 = 12113 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1685 from 22-04-2012 to 28-04-2012 DORIS name (using day of start): 12113 Days of year: from 2012/113 to 2012/119 ============================================================== 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/ign12113wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12113wd10.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 1685 from 22-04-2012 to 28-04-2012 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.23 the following satellites were used in the combination 2012 113 cryosat2 jason2 spot4 spot5 2012 114 cryosat2 jason2 spot4 spot5 2012 115 cryosat2 jason2 spot4 spot5 2012 116 cryosat2 jason2 spot4 spot5 2012 117 cryosat2 jason2 spot4 spot5 2012 118 cryosat2 jason2 spot4 spot5 2012 119 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 -------------------------------------------------------- 22-04-2012 38455 80 38375 0.2 23-04-2012 38866 75 38791 0.2 24-04-2012 38429 92 38337 0.2 25-04-2012 38277 86 38191 0.2 26-04-2012 38214 104 38110 0.3 27-04-2012 38771 102 38669 0.3 28-04-2012 37930 100 37830 0.3 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 9066 9238 9039 9183 9082 9259 8919 JASON2 16978 17065 16280 16350 16456 16726 16260 SPOT4 4593 4821 5011 4796 4541 4906 5070 SPOT5 7738 7667 8007 7862 8031 7778 7581 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.447 0.446 0.458 0.448 0.461 0.449 0.468 JASON2 0.417 0.418 0.405 0.419 0.431 0.425 0.418 SPOT4 0.439 0.435 0.441 0.432 0.439 0.449 0.462 SPOT5 0.417 0.400 0.412 0.424 0.413 0.411 0.402 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 --------------------------------------------------------------- ADGB 1382 1298 1272 1234 1317 1360 1314 AMVB 808 802 725 879 743 872 741 ARFB 464 572 506 515 545 506 531 ASEB 557 432 456 526 542 518 617 BADB 907 939 832 909 975 901 889 BEMB 2061 2019 1946 1902 1993 1997 1977 BETB 572 667 631 569 668 564 554 CADB 628 666 702 678 675 676 650 CHAB 1053 1022 1069 1134 1068 1080 979 CIDB 567 597 704 650 558 572 584 COBB 1293 1285 1320 1347 1313 1253 1308 CRQB 923 855 802 925 869 976 910 DIOB 759 658 751 639 727 738 751 DJIB 572 632 591 574 588 493 463 EASB 753 655 679 655 638 670 756 EVEB o 339 338 438 343 329 344 352 GR3B 516 492 496 478 438 535 414 GREB 851 908 919 852 869 827 891 HBMB 661 764 675 598 622 751 679 HEMB 547 629 639 571 566 539 610 JIUB 645 720 658 721 563 633 595 KETB 1002 971 894 929 1070 999 963 KIUB 692 839 761 836 702 817 732 KOLB 588 652 713 729 752 533 625 KRBB 967 982 1060 998 946 977 1100 KRWB 569 616 599 520 647 650 530 LICB 551 497 460 500 556 522 585 MAHB 366 462 535 440 495 447 384 MANB o 590 581 579 553 628 627 563 MATB o 840 645 0 0 0 0 0 METB 1074 1028 1102 1105 892 1086 1055 MIAB 686 578 610 679 770 694 647 MSPB 826 809 736 715 843 792 773 NOXB 632 592 606 607 727 743 542 PAUB 629 662 678 713 689 629 589 PDMB o 752 740 712 816 708 761 805 REUB 499 550 437 558 575 498 528 RIRB 234 235 235 234 232 235 230 ROVB 1481 1432 1602 1360 1508 1537 1531 SALB 0 442 585 636 625 654 654 SANB o 743 607 667 702 667 714 737 SPJB 1884 1876 1858 1822 1811 1871 1827 STJB o 1002 961 983 1043 915 1049 997 SYPB 642 609 680 672 677 722 682 THUB 1888 1920 1974 1848 1751 1851 1806 TLSB 1017 1016 979 910 946 1045 964 YASB 761 778 748 760 727 781 743 YEMB 1248 1383 1357 1429 1321 1313 1314 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 JASON2 SPOT4 SPOT5 ----------------------------------------- ADGB 2536 3596 0 3045 AMVB 1150 2741 648 1031 ARFB 869 1401 485 884 ASEB 676 1688 441 843 BADB 1386 2969 688 1309 BEMB 5230 2706 2008 3951 BETB 651 2015 722 837 CADB 845 2177 730 923 CHAB 1257 3647 1169 1332 CIDB 651 2069 671 841 COBB 1607 4098 1713 1701 CRQB 1201 3719 460 880 DIOB 1106 2717 433 767 DJIB 846 1721 619 727 EASB 864 2170 821 951 EVEB 603 860 380 640 GR3B 1011 2358 0 0 GREB 1219 2978 742 1178 HBMB 929 1787 1103 931 HEMB 886 1984 333 898 JIUB 829 2282 574 850 KETB 1264 3932 499 1133 KIUB 962 2565 836 1016 KOLB 988 1751 940 913 KRBB 1523 3318 725 1464 KRWB 590 1814 832 895 LICB 649 1961 449 612 MAHB 553 1615 284 677 MANB 611 2063 539 908 MATB 225 1017 18 225 METB 1812 3714 133 1683 MIAB 957 2309 398 1000 MSPB 1076 2378 924 1116 NOXB 770 2192 492 995 PAUB 691 2001 1002 895 PDMB 1066 2827 385 1016 REUB 875 1600 387 783 RIRB 1635 0 0 0 ROVB 2638 3858 1061 2894 SALB 596 1666 560 774 SANB 966 2317 522 1032 SPJB 5163 2791 1832 3163 STJB 1317 3355 931 1347 SYPB 1757 1289 462 1176 THUB 4624 3115 1777 3522 TLSB 1247 3074 1298 1258 YASB 1032 2441 724 1101 YEMB 2147 3850 1082 2286 6.4) statistics per station and per satellite (deleted stations) ----------------------------------------------------------------------- CRYOSAT2 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 13.3 13.5 13.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -6.8 +- 1.1 mm TY = -0.1 +- 1.0 mm TZ = 19.8 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.8 +- 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 0.39 0.34 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr