****************************************************************************** dorisreport 26-Sep-2012 02:12:50 Message No 3096 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1702 = 12232 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1702 from 19-08-2012 to 25-08-2012 DORIS name (using day of start): 12232 Days of year: from 2012/232 to 2012/238 ============================================================== 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/ign12232wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12232wd10.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 1702 from 19-08-2012 to 25-08-2012 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 7.40 the following satellites were used in the combination 2012 232 cryosat2 jason2 spot4 spot5 2012 233 cryosat2 jason2 spot4 spot5 2012 234 cryosat2 jason2 spot4 spot5 2012 235 cryosat2 jason2 spot4 spot5 2012 236 cryosat2 jason2 spot4 spot5 2012 237 cryosat2 jason2 spot4 spot5 2012 238 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 -------------------------------------------------------- 19-08-2012 41434 160 41274 0.4 20-08-2012 42011 114 41897 0.3 21-08-2012 41315 666 40649 1.6 22-08-2012 41609 54 41555 0.1 23-08-2012 41055 78 40977 0.2 24-08-2012 41258 46 41212 0.1 25-08-2012 40829 36 40793 0.1 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 9346 9629 8570 9804 9458 9499 9313 JASON2 18226 18632 18261 17996 17931 18212 18147 SPOT4 4961 5107 5266 5153 4932 4753 4962 SPOT5 8741 8529 8552 8602 8656 8748 8371 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.457 0.540 0.574 0.454 0.444 0.451 0.444 JASON2 0.395 0.422 0.421 0.397 0.402 0.407 0.394 SPOT4 0.444 0.547 0.570 0.430 0.431 0.440 0.429 SPOT5 0.419 0.436 0.424 0.423 0.416 0.403 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 1473 1358 1329 1352 1393 1426 1432 AMVB 873 791 750 742 826 840 816 ARFB 637 639 676 627 557 686 644 ASEB 517 551 467 540 457 544 499 BADB 1066 1047 944 945 1038 966 997 BEMB 2094 2012 2043 1939 2008 2037 2094 CADB 673 580 668 650 653 712 644 CHAB 1104 1006 989 1109 1132 1047 1144 CIDB 475 603 664 665 621 643 591 COBB 1221 1260 1203 1195 1248 1205 1135 CRQB 931 960 788 764 915 859 985 DIOB 663 699 705 799 629 777 746 EASB 651 652 585 649 636 652 359 EVEB o 410 403 464 454 398 420 424 GR3B 613 594 546 624 570 581 574 GRFB 709 831 757 880 822 740 766 HBMB 751 810 782 717 760 765 767 HEMB 546 555 644 562 597 489 579 JIUB 612 549 683 626 696 595 666 KETB 925 965 1080 911 915 1012 997 KIUB 751 772 833 798 753 807 829 KOLB 703 642 770 815 781 752 587 KRBB 1061 1136 1034 1133 1015 995 1011 KRWB 591 587 607 493 607 619 507 LICB 603 547 459 551 524 495 566 MAHB 547 500 524 515 499 646 475 MALB 489 594 511 486 519 560 577 MANB o 483 512 527 509 505 521 456 MATB o 0 0 0 371 376 0 0 MEUB 1082 1084 1103 1061 1108 1102 1031 MIAB 688 626 654 575 665 731 604 MSPB 851 861 806 798 791 823 941 NOXB 682 587 613 473 643 739 663 PAUB 706 566 560 618 662 615 522 PDMB o 708 712 713 784 619 758 712 REUB 636 691 624 601 663 640 584 REZB 1079 1227 1234 1179 1123 1081 1116 RIMB 450 565 512 575 519 564 588 RIRB 1133 1096 1102 1101 1027 1192 1163 ROVB 1451 1563 1535 1496 1517 1451 1430 SALB 574 631 597 429 0 0 0 SANB o 760 765 696 736 805 544 653 SPJB 1784 1898 1738 1906 1705 1851 1825 STJB o 939 1006 1000 865 864 997 1083 SYPB 1611 1535 1515 1412 1532 1502 1493 THUB 1806 1798 1812 1937 1934 1873 1919 TLSB 841 1004 938 981 840 945 1020 YASB 794 824 770 768 745 749 772 YEMB 1305 1361 1335 1410 1437 1298 1280 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 2639 4002 0 3122 AMVB 1213 2725 631 1069 ARFB 898 2091 560 917 ASEB 655 1559 555 806 BADB 1411 3594 686 1312 BEMB 5225 3051 2044 3907 CADB 955 1996 689 940 CHAB 1350 3758 1122 1301 CIDB 789 1955 659 859 COBB 1252 3871 1697 1647 CRQB 1219 3687 386 910 DIOB 1036 2827 299 856 EASB 728 1835 780 841 EVEB 543 1400 394 636 GR3B 1077 3025 0 0 GRFB 1063 2818 470 1154 HBMB 958 2370 1102 922 HEMB 947 2008 175 842 JIUB 703 1963 799 962 KETB 1342 3752 551 1160 KIUB 1046 2675 826 996 KOLB 942 2249 936 923 KRBB 1491 3599 774 1521 KRWB 641 1612 884 874 LICB 624 1777 530 814 MAHB 750 1626 492 838 MALB 585 1488 746 917 MANB 597 1649 332 935 MATB 153 449 0 145 MEUB 1731 3654 501 1685 MIAB 769 2118 628 1028 MSPB 1152 2744 837 1138 NOXB 891 2109 493 907 PAUB 693 1818 865 873 PDMB 860 2628 452 1066 REUB 976 2154 503 806 REZB 2101 3767 550 1621 RIMB 717 1873 273 910 RIRB 1629 3820 763 1602 ROVB 2658 3886 1034 2865 SALB 386 1003 325 517 SANB 1043 2434 394 1088 SPJB 5024 2779 1672 3232 STJB 1214 3253 976 1311 SYPB 2818 3623 1083 3076 THUB 4672 3115 1778 3514 TLSB 898 3098 1297 1276 YASB 1079 2453 764 1126 YEMB 2120 3969 1096 2241 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 17.9 18.3 12.0 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -1.2 +- 1.2 mm TY = -11.7 +- 1.2 mm TZ = 5.5 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 2.1 +- 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 0.53 0.76 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr