****************************************************************************** dorisreport 21-Jun-2012 06:44:03 Message No 2976 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1687 = 12127 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1687 from 06-05-2012 to 12-05-2012 DORIS name (using day of start): 12127 Days of year: from 2012/127 to 2012/133 ============================================================== 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/ign12127wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12127wd10.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 1687 from 06-05-2012 to 12-05-2012 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.98 the following satellites were used in the combination 2012 127 cryosat2 jason2 spot4 spot5 2012 128 cryosat2 jason2 spot4 spot5 2012 129 cryosat2 jason2 spot4 spot5 2012 130 cryosat2 jason2 spot4 spot5 2012 131 cryosat2 jason2 spot4 spot5 2012 132 cryosat2 jason2 spot4 spot5 2012 133 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 -------------------------------------------------------- 06-05-2012 38864 113 38751 0.3 07-05-2012 39168 82 39086 0.2 08-05-2012 38280 79 38201 0.2 09-05-2012 38539 122 38417 0.3 10-05-2012 39088 129 38959 0.3 11-05-2012 38223 90 38133 0.2 12-05-2012 37725 107 37618 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 9104 9185 9000 9088 8923 8808 8717 JASON2 16835 17106 16445 16362 16981 16527 16280 SPOT4 4685 4638 5043 5086 5066 4794 4629 SPOT5 8127 8157 7713 7881 7989 8004 7992 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.435 0.464 0.441 0.466 0.462 0.477 0.472 JASON2 0.423 0.411 0.410 0.432 0.437 0.421 0.434 SPOT4 0.435 0.431 0.432 0.427 0.430 0.435 0.439 SPOT5 0.423 0.411 0.408 0.414 0.437 0.428 0.412 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 1331 1403 1371 1286 1382 1319 1391 AMVB 729 840 764 829 766 814 822 ARFB 528 531 600 548 576 518 597 ASEB 477 542 545 485 457 550 569 BADB 963 944 891 935 848 947 972 BEMB 1857 2044 2029 2019 1939 1932 1968 BETB 681 455 387 597 662 545 642 CADB 715 691 682 612 774 692 670 CHAB 1082 1011 1086 1067 1088 1048 1105 CIDB 596 598 600 515 646 609 522 COBB 1325 1231 1309 1321 1313 1317 1183 CRQB 852 961 924 885 864 936 897 DIOB 680 632 733 743 641 687 694 DJIB 550 621 545 589 590 627 615 EASB 630 649 731 661 657 654 684 EVEB o 359 355 412 320 0 0 0 GR3B 451 508 438 513 506 532 481 GREB 848 729 828 813 706 0 0 HBMB 708 674 718 626 686 631 676 HEMB 582 598 634 709 579 558 507 JIUB 549 637 625 719 688 597 610 KETB 1055 1026 880 863 904 1040 946 KIUB 728 770 784 801 712 829 728 KOLB 753 598 633 709 762 663 704 KRBB 1001 1063 974 1122 1084 998 877 KRWB 654 685 532 577 651 575 583 LICB 529 544 547 503 517 573 477 MAHB 578 555 477 557 592 485 382 MANB o 693 567 538 609 597 655 646 METB 1121 1091 1107 1053 1103 1108 1092 MIAB 757 772 645 590 606 721 746 MSPB 796 833 809 772 787 764 804 NOXB 710 765 586 548 660 742 783 PAUB 661 639 513 642 687 650 584 PDMB o 655 807 779 784 746 608 797 REUB 577 572 498 508 562 616 527 RIMB 0 0 0 0 257 507 488 RIRB 1181 1170 1122 1108 1144 1184 1180 ROVB 1445 1458 1408 1497 1508 1454 1413 SANB o 717 605 647 596 681 685 679 SPJB 1828 1833 1891 1807 1831 1877 1841 STJB o 941 1011 1066 949 1075 931 974 SYPB 685 775 698 750 634 822 582 THUB 1805 1827 1904 1838 2008 1776 1847 TLSB 951 1078 803 1022 1010 1001 994 YASB 722 795 794 735 768 727 764 YEMB 1401 1260 1336 1352 1359 1271 1229 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 2490 3876 0 3117 AMVB 1102 2727 666 1069 ARFB 992 1412 557 937 ASEB 631 1751 428 815 BADB 1399 3102 672 1327 BEMB 5190 2725 1981 3892 BETB 676 1851 693 749 CADB 942 2170 723 1001 CHAB 1311 3638 1201 1337 CIDB 677 1955 569 885 COBB 1606 4093 1640 1660 CRQB 1299 3701 395 924 DIOB 978 2702 359 771 DJIB 768 1827 708 834 EASB 853 2134 841 838 EVEB 307 533 227 379 GR3B 1050 2379 0 0 GREB 642 2035 463 784 HBMB 1045 1689 1023 962 HEMB 947 1957 439 824 JIUB 721 2302 503 899 KETB 1362 3613 590 1149 KIUB 1011 2512 864 965 KOLB 1024 1796 956 1046 KRBB 1438 3365 743 1573 KRWB 628 1912 851 866 LICB 638 1830 457 765 MAHB 470 1900 402 854 MANB 656 2084 629 936 METB 1899 3817 226 1733 MIAB 873 2351 552 1061 MSPB 1183 2437 809 1136 NOXB 916 2202 650 1026 PAUB 679 1931 885 881 PDMB 988 2681 466 1041 REUB 994 1557 477 832 RIMB 127 676 173 276 RIRB 1606 3925 933 1625 ROVB 2661 3738 909 2875 SANB 960 2237 283 1130 SPJB 5228 2655 1783 3242 STJB 1389 3301 951 1306 SYPB 1819 1540 381 1206 THUB 4689 3041 1758 3517 TLSB 1188 3100 1302 1269 YASB 1001 2472 722 1110 YEMB 2070 3742 1134 2262 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 12.3 12.6 12.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -10.6 +- 1.3 mm TY = -4.6 +- 1.2 mm TZ = 17.2 +- 1.1 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 0.43 0.29 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr