****************************************************************************** dorisreport 26-May-2012 07:03:59 Message No 2954 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1684 = 12106 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1684 from 15-04-2012 to 21-04-2012 DORIS name (using day of start): 12106 Days of year: from 2012/106 to 2012/112 ============================================================== 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/ign12106wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12106wd10.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 1684 from 15-04-2012 to 21-04-2012 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.25 the following satellites were used in the combination 2012 106 cryosat2 jason2 spot4 spot5 2012 107 cryosat2 jason2 spot4 spot5 2012 108 cryosat2 jason2 spot4 spot5 2012 109 cryosat2 jason2 spot4 spot5 2012 110 cryosat2 jason2 spot4 spot5 2012 111 cryosat2 jason2 spot4 spot5 2012 112 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 -------------------------------------------------------- 15-04-2012 36712 58 36654 0.2 16-04-2012 36068 134 35934 0.4 17-04-2012 37766 53 37713 0.1 18-04-2012 38373 61 38312 0.2 19-04-2012 33988 49 33939 0.1 20-04-2012 38530 97 38433 0.3 21-04-2012 37679 65 37614 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 8579 8445 8919 8943 4531 8801 8949 JASON2 15910 15708 16534 16735 16403 16845 16386 SPOT4 4660 4345 4765 5042 5052 4765 4454 SPOT5 7505 7436 7495 7592 7953 8022 7825 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.443 0.437 0.426 0.429 0.413 0.414 0.439 JASON2 0.408 0.429 0.408 0.404 0.419 0.413 0.413 SPOT4 0.434 0.426 0.433 0.439 0.434 0.436 0.440 SPOT5 0.415 0.403 0.401 0.403 0.414 0.414 0.408 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 0 0 1048 1295 1311 1339 1296 AMVB 772 842 724 845 705 818 741 ARFB 530 546 605 509 539 509 598 ASEB 546 454 511 507 453 533 493 BADB 993 933 937 891 911 937 888 BEMB 1854 2042 2038 2024 1893 1914 1939 BETB 500 556 624 544 638 632 509 CADB 679 660 722 629 760 669 721 CHAB 1131 1071 1115 1023 1087 1093 1104 CIDB 587 512 588 591 523 647 596 COBB 1301 1295 1274 1333 1337 1281 1282 CRQB 859 776 857 881 819 805 846 DIOB 583 722 691 711 697 627 726 DJIB 0 0 255 670 580 530 594 EASB 594 689 613 757 632 657 681 EVEB o 414 304 359 394 387 364 404 GR3B 428 488 466 479 489 443 506 GREB 775 757 824 918 899 850 767 HBMB 691 617 732 681 739 599 667 HEMB 576 541 499 705 654 600 506 JIUB 595 700 723 735 743 577 735 KETB 933 1045 944 980 867 1101 1032 KIUB 731 777 806 741 818 755 861 KOLB 721 648 632 686 699 679 654 KRBB 1058 1002 1001 1088 1092 1032 971 KRWB 485 651 627 549 605 655 637 LICB 510 526 514 445 459 566 447 MAHB 406 413 420 321 373 512 369 MALB 479 308 0 0 0 0 0 MANB o 723 583 611 594 586 649 538 MATB o 869 893 906 934 887 893 893 METB 1117 1073 1101 1121 1096 1096 1064 MIAB 728 754 706 611 617 710 676 MSPB 737 826 823 804 800 732 756 NOXB 662 745 613 578 592 649 748 PAUB 680 685 612 682 731 654 566 PDMB o 800 775 704 753 711 794 692 REUB 581 557 555 476 525 544 558 RIRB 228 236 232 234 234 235 234 ROVB 1401 1390 1396 1440 1539 1439 1399 SANB o 724 625 555 600 690 652 680 SPJB 1863 1771 1931 1813 1892 1852 1861 STJB o 1013 828 1043 988 1045 1038 869 SYPB 469 293 402 415 483 501 365 THUB 1918 1792 1972 1927 1984 1784 1868 TLSB 931 902 869 1005 903 1033 865 YASB 715 754 774 753 762 735 737 YEMB 1367 1268 1339 1245 1302 1373 1313 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 1846 2311 0 2132 AMVB 1052 2726 639 1030 ARFB 916 1430 596 894 ASEB 594 1667 444 792 BADB 1431 2981 742 1336 BEMB 5175 2672 1970 3887 BETB 562 1976 680 785 CADB 922 2168 736 1014 CHAB 1295 3741 1245 1343 CIDB 554 2033 614 843 COBB 1573 4125 1653 1752 CRQB 1226 3413 427 777 DIOB 1053 2603 353 748 DJIB 520 1157 423 529 EASB 741 2157 842 883 EVEB 631 994 385 616 GR3B 1022 2277 0 0 GREB 1104 2973 557 1156 HBMB 1053 1683 1022 968 HEMB 878 2004 386 813 JIUB 973 2329 613 893 KETB 1326 3792 649 1135 KIUB 1086 2513 889 1001 KOLB 947 1816 919 1037 KRBB 1533 3568 678 1465 KRWB 632 1849 869 859 LICB 531 1936 379 621 MAHB 542 1223 356 693 MALB 165 312 159 151 MANB 858 2101 466 859 MATB 1302 3656 250 1067 METB 1908 3807 223 1730 MIAB 936 2322 479 1065 MSPB 1040 2533 770 1135 NOXB 775 2208 652 952 PAUB 690 2152 874 894 PDMB 1042 2712 469 1006 REUB 899 1611 435 851 RIRB 1633 0 0 0 ROVB 2580 3714 876 2834 SANB 978 2221 200 1127 SPJB 5210 2698 1852 3223 STJB 1304 3178 1027 1315 SYPB 0 1191 455 1282 THUB 4803 3165 1772 3505 TLSB 992 3017 1302 1197 YASB 1036 2436 672 1086 YEMB 2058 3739 1116 2294 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 12.1 13.5 10.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -7.1 +- 1.4 mm TY = -4.6 +- 1.2 mm TZ = 28.8 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.2 +- 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 0.44 0.63 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr