****************************************************************************** dorisreport 26-Sep-2012 02:01:09 Message No 3095 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1701 = 12225 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1701 from 12-08-2012 to 18-08-2012 DORIS name (using day of start): 12225 Days of year: from 2012/225 to 2012/231 ============================================================== 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/ign12225wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12225wd10.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 1701 from 12-08-2012 to 18-08-2012 Total number of stations = 50 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 3.40 the following satellites were used in the combination 2012 225 cryosat2 jason2 spot4 spot5 2012 226 cryosat2 jason2 spot4 spot5 2012 227 cryosat2 jason2 spot4 spot5 2012 228 cryosat2 jason2 spot4 spot5 2012 229 cryosat2 jason2 spot4 spot5 2012 230 cryosat2 jason2 spot4 spot5 2012 231 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 -------------------------------------------------------- 12-08-2012 40226 52 40174 0.1 13-08-2012 38125 62 38063 0.2 14-08-2012 42120 81 42039 0.2 15-08-2012 42568 56 42512 0.1 16-08-2012 42314 43 42271 0.1 17-08-2012 42245 43 42202 0.1 18-08-2012 41619 61 41558 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 8950 6747 9620 9893 9706 9621 9427 JASON2 17839 18044 18698 18821 18459 18482 18306 SPOT4 5041 4779 4980 5156 5313 5471 5048 SPOT5 8344 8493 8741 8642 8793 8628 8777 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.455 0.447 0.460 0.455 0.457 0.445 0.451 JASON2 0.403 0.407 0.396 0.392 0.391 0.401 0.386 SPOT4 0.437 0.427 0.445 0.442 0.421 0.438 0.442 SPOT5 0.429 0.430 0.413 0.409 0.410 0.414 0.423 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 1426 1409 1431 1255 1406 1374 AMVB 715 736 817 802 772 764 806 ARFB 590 582 580 696 632 639 606 ASEB 498 452 476 508 432 522 528 BADB 994 1010 942 965 990 1022 966 BEMB 1831 2085 2036 2089 1987 1980 1873 BETB 488 0 0 0 0 0 0 CADB 628 710 644 669 636 704 715 CHAB 1006 1133 1041 1147 970 1148 1037 CIDB 638 612 633 586 519 658 652 COBB 1278 1222 1237 1224 1282 1215 1227 CRQB 800 891 834 910 873 718 899 DIOB 775 612 800 787 672 729 698 EASB 679 601 702 699 549 580 588 EVEB o 456 422 428 453 446 400 509 GR3B 607 502 629 477 638 525 513 GRFB 849 840 710 809 913 821 824 HBMB 756 690 763 751 782 714 608 HEMB 528 634 458 695 566 582 554 JIUB 557 628 566 699 647 645 477 KETB 981 1073 955 1008 945 998 1037 KIUB 810 791 736 846 772 817 796 KOLB 797 737 704 747 743 743 774 KRBB 971 1022 1099 1026 1140 1072 1071 KRWB 490 621 605 534 558 620 597 LICB 511 506 509 477 527 513 488 MAHB 354 405 470 500 567 406 436 MALB 0 242 525 570 518 540 557 MANB o 529 478 538 541 584 598 603 MATB o 871 769 879 849 905 327 0 MEUB 1109 1044 1049 1049 1122 1207 1147 MIAB 621 646 659 612 557 630 654 MSPB 783 800 815 843 857 735 813 NOXB 580 719 644 627 532 679 613 PAUB 692 743 668 616 633 710 680 PDMB o 766 662 796 697 701 741 787 REUB 609 667 623 584 609 639 671 REZB 1143 1049 1134 1113 1269 1050 1128 RIMB 374 481 437 502 537 478 523 RIRB 1143 1122 1050 1148 1115 1131 1189 ROVB 0 676 1536 1416 1524 1570 1507 SALB 571 555 610 570 627 602 573 SANB o 696 860 686 655 700 738 765 SPJB 1931 1743 1808 1876 1824 1802 1848 STJB o 965 864 946 976 1025 1063 935 SYPB 1305 1406 1577 1445 1329 1499 1524 THUB 1888 1848 1855 1925 1939 1862 1910 TLSB 1099 895 1023 923 982 1046 984 YASB 695 768 798 699 759 781 747 YEMB 1415 1398 1241 1348 1386 1410 1387 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 2575 4039 0 3057 AMVB 1077 2706 565 1064 ARFB 923 2095 380 927 ASEB 683 1537 408 788 BADB 1370 3565 669 1285 BEMB 5151 3053 1839 3838 BETB 76 242 66 104 CADB 933 2115 698 960 CHAB 1245 3678 1233 1326 CIDB 772 1926 659 941 COBB 1365 3885 1634 1801 CRQB 1254 3420 395 856 DIOB 1061 2722 444 846 EASB 835 2022 718 823 EVEB 614 1447 421 632 GR3B 1063 2828 0 0 GRFB 1037 2851 710 1168 HBMB 1002 2144 991 927 HEMB 809 2029 366 813 JIUB 654 1935 612 1018 KETB 1337 3767 797 1096 KIUB 1040 2661 835 1032 KOLB 944 2268 978 1055 KRBB 1550 3612 649 1590 KRWB 596 1612 915 902 LICB 542 1725 526 738 MAHB 714 1059 446 919 MALB 475 1227 580 670 MANB 589 1704 618 960 MATB 792 2820 215 773 MEUB 1852 3648 579 1648 MIAB 748 2111 507 1013 MSPB 1087 2705 750 1104 NOXB 860 2114 524 896 PAUB 831 2035 926 950 PDMB 988 2696 457 1009 REUB 890 2143 462 907 REZB 2084 3822 518 1462 RIMB 845 1404 292 791 RIRB 1643 3926 721 1608 ROVB 2062 3137 883 2147 SALB 674 1830 691 913 SANB 982 2477 517 1124 SPJB 5212 2724 1683 3213 STJB 1237 3326 926 1285 SYPB 2726 3196 1120 3043 THUB 4678 3263 1756 3530 TLSB 1247 3158 1272 1275 YASB 1024 2354 799 1070 YEMB 2124 4081 1119 2261 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 11.5 12.8 12.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -0.3 +- 1.3 mm TY = -9.4 +- 1.2 mm TZ = 23.2 +- 1.1 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.9 +- 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 0.46 0.73 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr