****************************************************************************** dorisreport 04-Aug-2012 08:52:58 Message No 3031 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1694 = 12176 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1694 from 24-06-2012 to 30-06-2012 DORIS name (using day of start): 12176 Days of year: from 2012/176 to 2012/182 ============================================================== 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/ign12176wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12176wd10.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 1694 from 24-06-2012 to 30-06-2012 Total number of stations = 50 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 3.03 the following satellites were used in the combination 2012 176 cryosat2 jason2 spot4 spot5 2012 177 cryosat2 jason2 spot4 spot5 2012 178 cryosat2 jason2 spot4 spot5 2012 179 cryosat2 jason2 spot4 spot5 2012 180 cryosat2 jason2 spot4 spot5 2012 181 cryosat2 jason2 spot4 spot5 2012 182 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 -------------------------------------------------------- 24-06-2012 39255 85 39170 0.2 25-06-2012 39642 94 39548 0.2 26-06-2012 39795 96 39699 0.2 27-06-2012 38800 122 38678 0.3 28-06-2012 38388 135 38253 0.4 29-06-2012 38930 93 38837 0.2 30-06-2012 38873 76 38797 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 8993 8948 9033 8991 8927 9172 8384 JASON2 17408 17458 17647 17243 16854 16991 17516 SPOT4 4776 5132 5034 4686 4644 4838 4962 SPOT5 7993 8010 7985 7758 7828 7836 7935 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.460 0.478 0.481 0.504 0.482 0.479 0.475 JASON2 0.416 0.426 0.407 0.418 0.422 0.417 0.418 SPOT4 0.442 0.448 0.435 0.452 0.439 0.434 0.426 SPOT5 0.405 0.407 0.425 0.441 0.431 0.416 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 1363 1337 1364 1387 1425 1373 1380 AMVB 813 730 724 796 861 766 841 ARFB 680 675 583 597 635 666 671 ASEB 526 467 483 570 483 423 459 BADB 1074 411 892 983 982 955 970 BEMB 2006 2048 1996 2014 2066 2083 1924 BETB 567 555 545 507 554 487 503 CADB 643 706 673 713 688 712 662 CHAB 1052 1083 1073 1064 1031 1082 1085 CIDB 599 675 687 605 515 632 612 COBB 1270 1265 1315 1208 98 0 0 CRQB 971 782 865 827 854 912 876 DIOB 691 756 665 734 616 662 700 DJIB 529 616 696 627 551 589 616 EASB 286 665 650 664 636 625 692 EVEB o 418 413 450 480 411 463 389 GR3B 584 516 601 538 622 552 628 GRFB 763 771 894 751 724 815 784 HBMB 655 855 759 784 678 780 722 HEMB 607 644 567 626 593 545 725 JIUB 621 599 612 465 544 574 631 KETB 821 1075 996 953 980 1006 912 KIUB 836 789 867 765 711 764 745 KOLB 754 814 790 642 775 743 737 KRBB 1060 1227 1102 1027 991 1034 1136 KRWB 535 498 586 571 523 557 564 LICB 447 561 525 572 466 418 366 MAHB 432 624 565 551 540 538 511 MANB o 557 559 504 509 513 514 529 MATB o 0 0 0 0 500 41 0 METB 1077 1049 632 0 0 0 0 MIAB 601 675 557 610 680 609 587 MSPB 895 819 823 773 833 895 856 NOXB 614 575 485 637 669 606 560 PAUB 662 640 728 493 721 656 686 PDMB o 746 698 700 816 750 726 791 REUB 631 611 646 675 518 582 545 REZB 1069 1165 1120 988 991 1130 1153 RIMB 466 512 406 501 432 515 459 RIRB 1097 1044 1187 1127 1181 1175 1067 ROVB 0 0 0 0 894 1471 1403 SALB 680 647 662 604 611 609 667 SANB o 808 647 724 876 699 617 640 SPJB 1832 1831 1851 1854 1800 1892 1794 STJB o 962 1029 973 1006 867 991 1066 SYPB 718 811 737 767 687 895 795 THUB 1672 1731 1961 1953 1857 1838 1875 TLSB 847 875 1012 1051 1018 861 973 YASB 784 763 730 749 804 779 777 YEMB 1385 1362 1356 1377 1359 1326 1366 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 2640 3920 0 3069 AMVB 1185 2684 620 1042 ARFB 909 2122 573 903 ASEB 620 1526 423 842 BADB 1277 3238 546 1206 BEMB 5163 3030 2064 3880 BETB 613 1765 640 700 CADB 966 2180 734 917 CHAB 1307 3697 1162 1304 CIDB 814 1935 676 900 COBB 831 2363 958 1004 CRQB 1225 3595 415 852 DIOB 989 2703 414 718 DJIB 747 1942 669 866 EASB 708 1915 727 868 EVEB 530 1428 428 638 GR3B 957 3084 0 0 GRFB 1058 2767 557 1120 HBMB 966 2237 1089 941 HEMB 975 1956 440 936 JIUB 686 1789 672 899 KETB 1361 3744 500 1138 KIUB 969 2695 820 993 KOLB 973 2298 1040 944 KRBB 1502 3703 853 1519 KRWB 594 1588 814 838 LICB 578 1539 521 717 MAHB 629 1883 418 831 MANB 595 1721 456 913 MATB 94 312 67 68 METB 541 1590 111 516 MIAB 718 2125 538 938 MSPB 1181 2694 879 1140 NOXB 849 2066 376 855 PAUB 818 1878 1004 886 PDMB 1021 2709 420 1077 REUB 947 2043 405 813 REZB 2084 3358 496 1678 RIMB 612 1476 239 964 RIRB 1666 3946 707 1559 ROVB 965 1396 390 1017 SALB 789 1986 681 1024 SANB 1042 2481 467 1021 SPJB 5038 2820 1786 3210 STJB 1272 3350 894 1378 SYPB 1954 1743 482 1231 THUB 4539 3060 1771 3517 TLSB 1136 2944 1275 1282 YASB 1028 2421 859 1078 YEMB 2112 4052 1079 2288 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 12.0 12.6 12.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -7.5 +- 1.2 mm TY = -12.0 +- 1.2 mm TZ = 19.1 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 2.3 +- 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 0.49 0.30 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr