****************************************************************************** dorisreport 29-Jun-2012 09:06:49 Message No 2992 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1689 = 12141 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1689 from 20-05-2012 to 26-05-2012 DORIS name (using day of start): 12141 Days of year: from 2012/141 to 2012/147 ============================================================== 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/ign12141wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12141wd10.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 1689 from 20-05-2012 to 26-05-2012 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.78 the following satellites were used in the combination 2012 141 cryosat2 jason2 spot4 spot5 2012 142 cryosat2 jason2 spot4 spot5 2012 143 cryosat2 jason2 spot4 spot5 2012 144 cryosat2 jason2 spot4 spot5 2012 145 cryosat2 jason2 spot4 spot5 2012 146 cryosat2 jason2 spot4 spot5 2012 147 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 -------------------------------------------------------- 20-05-2012 39893 89 39804 0.2 21-05-2012 34256 71 34185 0.2 22-05-2012 39473 99 39374 0.3 23-05-2012 39603 97 39506 0.2 24-05-2012 39676 90 39586 0.2 25-05-2012 39990 91 39899 0.2 26-05-2012 39365 111 39254 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 9280 9351 9183 9251 9218 9246 9227 JASON2 17197 11583 17086 17247 17168 17074 17025 SPOT4 5036 4948 4858 4917 5088 5203 4885 SPOT5 8291 8303 8247 8091 8112 8376 8117 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.443 0.444 0.457 0.459 0.457 0.456 0.474 JASON2 0.420 0.407 0.420 0.423 0.418 0.418 0.424 SPOT4 0.431 0.438 0.444 0.453 0.447 0.441 0.440 SPOT5 0.411 0.421 0.414 0.405 0.410 0.415 0.421 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 1333 1306 1350 1357 1285 1254 1242 AMVB 780 827 819 822 769 704 821 ARFB 569 439 591 470 604 520 455 ASEB 397 576 549 515 564 478 510 BADB 875 909 1007 904 912 837 883 BEMB 1830 1832 1783 2032 1927 1885 1906 BETB 658 539 667 636 547 626 578 CADB 740 637 732 701 645 701 612 CHAB 1075 1024 1098 1061 1019 1072 1089 CIDB 670 672 660 600 552 676 699 COBB 1324 1362 1241 1291 1292 1325 1366 CRQB 872 930 907 965 895 809 830 DIOB 670 731 756 689 667 708 714 DJIB 632 465 606 602 605 619 645 EASB 651 671 639 684 641 715 602 GR3B 509 529 446 455 552 438 481 HBMB 697 613 655 638 740 681 685 HEMB 665 593 535 523 646 644 574 JIUB 682 639 627 615 649 647 709 KETB 917 1029 1068 1031 916 943 1012 KIUB 800 745 757 681 807 662 814 KOLB 678 743 658 645 666 649 703 KRBB 1100 1048 887 979 1063 1171 1074 KRWB 662 556 623 638 601 499 624 LICB 413 535 474 555 439 585 553 MAHB 581 571 466 547 476 465 504 MALB 540 627 510 572 594 631 493 MANB o 605 643 651 461 541 644 584 METB 1063 1104 1031 1014 1129 1101 1111 MIAB 644 655 581 674 648 616 633 MSPB 798 686 771 776 820 749 741 NOXB 608 658 769 644 670 610 606 PAUB 593 643 631 665 615 613 667 PDMB o 695 809 794 672 791 786 723 REUB 491 568 526 566 479 578 502 REZB 1150 1022 1113 1075 1138 1120 846 RIMB 551 549 572 545 453 611 452 RIRB 1066 1021 1146 1036 1064 1033 1167 ROVB 1548 1587 1415 1516 1532 1548 1372 SANB o 712 780 685 774 711 714 660 SPJB 1860 1875 1849 1865 1826 1844 1846 STJB o 1080 1007 967 1022 1019 1041 907 SYPB 671 884 606 815 815 815 827 THUB 1947 1817 1772 1857 1877 1961 1816 TLSB 854 1007 914 872 1003 981 958 YASB 797 777 794 798 678 807 841 YEMB 1390 1382 1340 1328 1309 1373 1448 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 2584 3491 0 3052 AMVB 1188 2706 557 1091 ARFB 951 1382 400 915 ASEB 633 1668 510 778 BADB 1380 3105 565 1277 BEMB 5051 2556 1771 3817 BETB 649 1953 797 852 CADB 873 2194 769 932 CHAB 1314 3628 1151 1345 CIDB 689 2136 764 940 COBB 1494 4238 1667 1802 CRQB 1306 3563 479 860 DIOB 1041 2632 485 777 DJIB 890 1787 673 824 EASB 789 2136 759 919 GR3B 944 2466 0 0 HBMB 1036 1623 1032 1018 HEMB 905 1963 444 868 JIUB 765 2306 602 895 KETB 1390 3799 626 1101 KIUB 1041 2384 792 1049 KOLB 951 1762 1069 960 KRBB 1486 3379 908 1549 KRWB 600 1896 928 779 LICB 574 1806 468 706 MAHB 434 1924 419 833 MALB 601 1913 704 749 MANB 627 2102 442 958 METB 1826 3805 241 1681 MIAB 804 2309 447 891 MSPB 1101 2297 847 1096 NOXB 916 2163 568 918 PAUB 748 1879 889 911 PDMB 1075 2748 454 993 REUB 847 1612 362 889 REZB 2126 3322 518 1498 RIMB 630 1925 284 894 RIRB 1664 3816 496 1557 ROVB 2656 3601 1358 2903 SANB 1047 2300 580 1109 SPJB 5148 2772 1855 3190 STJB 1284 3453 918 1388 SYPB 1883 1563 531 1456 THUB 4758 3093 1629 3567 TLSB 1129 2895 1310 1255 YASB 1070 2556 845 1021 YEMB 2155 3984 1100 2331 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 8.8 13.3 10.8 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -6.6 +- 1.2 mm TY = -2.3 +- 1.1 mm TZ = -11.7 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.0 +- 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 0.38 0.48 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr