****************************************************************************** dorisreport 21-Jun-2012 06:53:56 Message No 2977 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1688 = 12134 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1688 from 13-05-2012 to 19-05-2012 DORIS name (using day of start): 12134 Days of year: from 2012/134 to 2012/140 ============================================================== 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/ign12134wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12134wd10.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 1688 from 13-05-2012 to 19-05-2012 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 3.24 the following satellites were used in the combination 2012 134 cryosat2 jason2 spot4 spot5 2012 135 cryosat2 jason2 spot4 spot5 2012 136 cryosat2 jason2 spot4 spot5 2012 137 cryosat2 jason2 spot4 spot5 2012 138 cryosat2 jason2 spot4 spot5 2012 139 cryosat2 jason2 spot4 spot5 2012 140 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 -------------------------------------------------------- 13-05-2012 38125 99 38026 0.3 14-05-2012 37835 8899 28936 23.5 15-05-2012 33828 67 33761 0.2 16-05-2012 38893 119 38774 0.3 17-05-2012 39851 101 39750 0.3 18-05-2012 39496 111 39385 0.3 19-05-2012 36022 116 35906 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 8902 0 4840 9063 9142 9148 9029 JASON2 16627 16418 16222 16860 17431 17149 16423 SPOT4 4812 4875 4825 4737 4790 4949 5001 SPOT5 7685 7643 7874 8114 8387 8139 5453 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.452 0.000 0.465 0.456 0.457 0.458 0.455 JASON2 0.430 0.415 0.416 0.431 0.421 0.421 0.425 SPOT4 0.437 0.429 0.441 0.434 0.432 0.444 0.446 SPOT5 0.411 0.425 0.423 0.426 0.412 0.424 0.414 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 1313 1266 1366 1312 1378 1291 1275 AMVB 771 782 736 789 729 840 654 ARFB 563 600 484 543 569 516 545 ASEB 496 533 368 525 579 559 533 BADB 956 884 883 879 873 898 990 BEMB 2093 2044 1915 1868 2032 2044 2064 BETB 512 511 616 556 513 431 573 CADB 658 685 702 639 707 728 653 CHAB 1068 1065 1058 1085 1071 1026 1095 CIDB 612 591 653 604 656 557 523 COBB 1346 1253 1358 1310 1212 1302 1307 CRQB 985 883 861 846 925 935 749 DIOB 687 668 683 704 668 711 696 DJIB 595 559 622 624 620 579 568 EASB 677 707 672 661 679 747 673 GR3B 453 479 494 461 485 414 479 HBMB 642 750 663 692 615 699 647 HEMB 613 718 594 513 548 547 610 JIUB 723 725 732 742 692 683 704 KETB 1031 889 850 966 1109 973 920 KIUB 819 801 829 760 815 790 749 KOLB 617 711 711 688 673 613 690 KRBB 956 979 1066 1003 941 941 1017 KRWB 646 634 541 566 657 611 630 LICB 457 445 325 545 431 490 487 MAHB 535 521 442 534 583 331 515 MALB 0 0 289 594 569 643 513 MANB o 467 595 540 584 531 578 506 METB 1008 1109 1121 1098 1028 1108 1067 MIAB 653 563 597 369 645 671 581 MSPB 805 766 809 779 774 781 791 NOXB 600 534 574 593 775 681 611 PAUB 679 687 628 695 670 640 656 PDMB o 753 763 728 695 827 797 663 REUB 534 462 547 561 590 478 462 REZB 0 0 0 717 1140 940 1019 RIMB 559 559 613 494 571 559 496 RIRB 1187 1096 1047 1158 1234 1050 1133 ROVB 1427 1452 1490 1447 1387 1460 1406 SANB o 581 570 641 721 553 780 550 SPJB 1852 1875 1857 1827 1829 1879 1784 STJB o 1036 1106 892 973 952 1047 938 SYPB 767 618 669 727 744 719 705 THUB 1879 1961 1907 1844 1822 1957 1797 TLSB 963 939 1052 940 1041 971 1045 YASB 780 679 800 794 714 778 718 YEMB 1319 1378 1375 1423 1271 1290 1336 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 2516 3629 0 3056 AMVB 1029 2621 616 1035 ARFB 974 1383 576 887 ASEB 591 1690 485 827 BADB 1391 3051 613 1308 BEMB 5188 2801 2133 3938 BETB 631 1645 721 715 CADB 902 2181 752 937 CHAB 1315 3617 1206 1330 CIDB 636 1952 760 848 COBB 1436 4241 1729 1682 CRQB 1248 3597 425 914 DIOB 1008 2580 422 807 DJIB 812 1812 688 855 EASB 845 2133 872 966 GR3B 1013 2252 0 0 HBMB 991 1649 1115 953 HEMB 934 1921 352 936 JIUB 882 2358 864 897 KETB 1383 3678 554 1123 KIUB 1087 2618 860 998 KOLB 900 1880 976 947 KRBB 1506 3361 649 1387 KRWB 632 1953 839 861 LICB 610 1510 442 618 MAHB 389 1827 445 800 MALB 349 1209 476 574 MANB 632 2012 270 887 METB 1842 3873 139 1685 MIAB 784 2146 238 911 MSPB 1138 2328 889 1150 NOXB 904 2039 534 891 PAUB 813 1948 976 918 PDMB 986 2788 375 1077 REUB 978 1513 327 816 REZB 1108 1689 205 814 RIMB 618 2033 245 955 RIRB 1661 3846 826 1572 ROVB 2625 3741 870 2833 SANB 901 2175 273 1047 SPJB 5144 2741 1815 3203 STJB 1278 3262 1052 1352 SYPB 1788 1538 381 1242 THUB 4689 3009 1943 3526 TLSB 1130 3293 1308 1220 YASB 1012 2439 722 1090 YEMB 2050 4024 1071 2247 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 10.5 13.7 11.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -8.7 +- 1.2 mm TY = -1.8 +- 1.1 mm TZ = 28.6 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = -0.2 +- 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 0.45 0.55 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr