****************************************************************************** dorisreport 28-Feb-2013 16:12:07 Message No 3257 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1724 = 13020 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1724 from 20-01-2013 to 26-01-2013 DORIS name (using day of start): 13020 Days of year: from 2013/20 to 2013/26 ============================================================== 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/ign13020wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign13020wd10.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: goa-test.2011.09.27c Minor change: do not use DEV scripts anymore #week 1698: goa-test.2012.09.11a Correct bug related to satellite phase center corrections #week 1720: goa.test.2013.01.25a Correct bug when handling files doris_break.nml to handle station discontinuities and also SAA_definitions.txt file to handle stations and satellites affected by the South Atlantic Anomaly effect 4) Global Statistics ==================== GPS week number 1724 from 20-01-2013 to 26-01-2013 Total number of stations = 44 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.83 the following satellites were used in the combination 2013 20 cryosat2 jason2 spot4 spot5 2013 21 cryosat2 jason2 spot4 spot5 2013 22 cryosat2 jason2 spot4 spot5 2013 23 cryosat2 jason2 spot4 spot5 2013 24 cryosat2 jason2 spot4 spot5 2013 25 cryosat2 jason2 spot4 spot5 2013 26 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 -------------------------------------------------------- 20-01-2013 36585 96 36489 0.3 21-01-2013 36436 125 36311 0.3 22-01-2013 37786 59 37727 0.2 23-01-2013 38056 20 38036 0.1 24-01-2013 37889 35 37854 0.1 25-01-2013 37631 81 37550 0.2 26-01-2013 37792 8082 29710 21.4 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 8610 8522 8971 8783 9001 8594 8865 JASON2 15960 15894 16401 16879 16472 16323 16391 SPOT4 4490 4335 4465 4692 4707 4890 4454 SPOT5 7429 7560 7890 7682 7674 7743 0 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.427 0.432 0.424 0.436 0.424 0.439 0.429 JASON2 0.396 0.381 0.385 0.378 0.380 0.390 0.394 SPOT4 0.423 0.429 0.463 0.412 0.428 0.428 0.436 SPOT5 0.412 0.397 0.412 0.397 0.398 0.402 0.000 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 1370 1408 1394 1377 1361 1353 1347 AMVB 751 822 775 734 580 785 739 ARFB 564 412 141 684 732 617 540 ASEB 466 573 445 461 457 525 438 BADB 1015 1017 1068 1065 934 1095 1003 BEMB 1892 1970 2103 2105 2049 1862 2025 CADB 552 648 662 614 645 572 595 CHAB 1057 1077 1058 1073 1030 1110 1075 CIDB 601 612 447 469 526 595 588 COBB 1372 1331 1204 1322 1311 1341 1318 CRQB 915 875 913 935 828 739 882 DIOB 656 628 575 567 597 627 606 DJIB 669 664 651 632 639 663 684 EASB 585 612 574 615 657 573 623 EVEB o 413 495 429 412 511 417 493 FUUB 527 599 524 503 505 511 559 GR3B 550 489 564 571 575 607 589 GRFB 932 750 861 833 935 859 879 HBMB 716 716 742 720 786 775 712 HEMB 596 600 531 575 663 551 567 KETB 1089 936 1034 1009 930 1044 1003 KOLB 801 753 733 724 758 787 738 KRBB 991 1031 1128 1044 1143 1109 1181 KRWB 514 520 645 570 586 461 599 LICB 515 564 517 520 484 637 547 MANB o 681 638 627 631 674 648 525 MEUB 1061 1118 1116 1069 1091 1227 1135 MIAB 752 574 801 688 651 627 694 MSPB 791 795 836 839 781 790 724 NOXB 572 628 667 584 576 484 584 PAUB 640 574 651 620 648 648 655 PDMB o 789 754 715 682 803 628 714 REUB 626 659 600 661 526 656 676 REZB 1109 1008 1108 1115 1090 1102 1139 RIMB 522 546 464 558 408 524 490 RIRB 1058 1127 1090 1248 1111 1073 1035 ROVB 0 216 1588 1485 1515 1543 1545 SALB 685 587 618 566 662 553 558 SANB o 625 671 684 630 677 629 728 SPJB 1855 1828 1796 1942 1803 1852 1766 SYPB 1507 1559 1641 1463 1432 1404 1571 THUB 1833 1932 1700 1885 1935 1812 1850 TLSB 1011 905 939 1015 1016 976 837 YASB 806 699 816 751 809 738 760 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 2654 3910 0 3046 AMVB 850 2635 612 1089 ARFB 803 1808 335 744 ASEB 647 1587 421 710 BADB 1403 3728 735 1331 BEMB 5217 3030 1893 3866 CADB 846 1937 628 877 CHAB 1301 3614 1236 1329 CIDB 577 1703 639 919 COBB 1582 4217 1653 1747 CRQB 1322 3515 373 877 DIOB 981 2349 242 684 DJIB 873 2074 782 873 EASB 682 1906 816 835 EVEB 610 1477 458 625 FUUB 602 1637 549 940 GR3B 1147 2798 0 0 GRFB 1139 2987 749 1174 HBMB 958 2224 994 991 HEMB 937 2066 290 790 KETB 1426 3770 746 1103 KOLB 949 2256 1025 1064 KRBB 1552 3529 924 1622 KRWB 697 1679 753 766 LICB 613 1689 606 876 MANB 818 2027 592 987 MEUB 1823 3715 617 1662 MIAB 975 2329 477 1006 MSPB 1099 2684 696 1077 NOXB 847 1965 401 882 PAUB 672 1799 972 993 PDMB 946 2654 457 1028 REUB 857 2122 508 917 REZB 2098 3491 491 1591 RIMB 466 1897 305 844 RIRB 1637 3857 652 1596 ROVB 2136 2868 872 2016 SALB 815 2052 588 774 SANB 846 2276 474 1048 SPJB 5159 2791 1657 3235 SYPB 3006 3396 1137 3038 THUB 4696 3047 1720 3484 TLSB 1191 2972 1272 1264 YASB 1063 2448 843 1025 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 15.0 11.8 13.8 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 6.3 +- 1.6 mm TY = -6.2 +- 1.5 mm TZ = -20.3 +- 1.3 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 2.5 +- 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 0.40 0.54 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr