****************************************************************************** dorisreport 09-Jun-2012 00:54:34 Message No 2966 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1686 = 12120 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1686 from 29-04-2012 to 05-05-2012 DORIS name (using day of start): 12120 Days of year: from 2012/120 to 2012/126 ============================================================== 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/ign12120wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12120wd10.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 1686 from 29-04-2012 to 05-05-2012 Total number of stations = 47 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.77 the following satellites were used in the combination 2012 120 cryosat2 jason2 spot4 spot5 2012 121 cryosat2 jason2 spot4 spot5 2012 122 cryosat2 jason2 spot4 spot5 2012 123 cryosat2 jason2 spot4 spot5 2012 124 cryosat2 jason2 spot4 spot5 2012 125 cryosat2 jason2 spot4 spot5 2012 126 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 -------------------------------------------------------- 29-04-2012 36439 94 36345 0.3 30-04-2012 39564 123 39441 0.3 01-05-2012 39060 108 38952 0.3 02-05-2012 38815 107 38708 0.3 03-05-2012 38515 104 38411 0.3 04-05-2012 38871 91 38780 0.2 05-05-2012 38800 16566 22234 42.7 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 9165 9087 9250 9119 8959 9055 9021 JASON2 16441 17446 16817 16667 16756 16659 0 SPOT4 2799 4798 4750 4805 4931 5142 5129 SPOT5 7940 8110 8135 8117 7765 7924 8084 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.449 0.456 0.462 0.451 0.451 0.451 0.468 JASON2 0.432 0.415 0.409 0.406 0.434 0.420 0.000 SPOT4 0.455 0.436 0.429 0.436 0.438 0.432 0.445 SPOT5 0.403 0.417 0.415 0.407 0.422 0.406 0.441 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 1267 1333 1329 1420 1332 1318 1345 AMVB 808 772 811 811 792 768 810 ARFB 545 508 472 482 561 604 480 ASEB 421 550 481 596 466 471 470 BADB 952 834 889 920 938 841 946 BEMB 1938 1985 1958 1993 1996 2037 1860 BETB 670 598 578 668 500 537 591 CADB 604 689 697 687 646 712 673 CHAB 1002 1097 1092 1113 1001 1079 1105 CIDB 529 677 680 466 565 649 637 COBB 1331 1351 1319 1211 1297 1327 1373 CRQB 798 852 984 943 1008 816 918 DIOB 708 652 687 751 644 650 654 DJIB 540 583 624 556 569 503 592 EASB 618 631 640 658 658 712 636 EVEB o 358 386 405 376 284 440 340 GR3B 510 441 449 455 416 502 505 GREB 812 848 840 784 811 873 817 HBMB 732 616 645 691 695 728 587 HEMB 708 558 593 493 710 704 532 JIUB 593 660 675 556 758 653 678 KETB 928 988 1123 849 1037 888 964 KIUB 756 752 856 600 829 801 753 KOLB 711 783 687 670 558 750 741 KRBB 1139 1073 1035 1002 1091 1017 1135 KRWB 638 645 629 515 649 622 539 LICB 520 469 492 607 502 398 377 MAHB 506 585 0 528 0 594 404 MANB o 637 556 512 524 494 646 589 METB 1141 996 1153 1036 1056 1119 1144 MIAB 700 614 662 674 632 607 707 MSPB 752 750 762 793 803 729 732 NOXB 646 630 793 720 523 645 668 PAUB 715 702 582 665 686 595 689 PDMB o 751 811 712 812 734 801 778 REUB 486 558 546 494 515 474 617 RIRB 235 967 1098 983 1187 1099 1100 ROVB 1551 1426 1396 1543 1409 1536 1511 SALB 634 628 550 610 609 0 0 SANB o 712 691 783 790 574 587 692 SPJB 1922 1859 1835 1809 1870 1763 1972 STJB o 1062 1071 954 1005 957 1023 923 SYPB 727 792 705 666 661 706 854 THUB 1861 1922 1954 1818 1877 1946 1793 TLSB 1024 1053 925 949 1055 1009 969 YASB 751 795 745 785 768 749 732 YEMB 1418 1374 1308 1236 1343 1394 1401 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 2542 3765 0 3037 AMVB 1191 2741 550 1090 ARFB 885 1391 458 918 ASEB 634 1655 431 735 BADB 1404 3117 520 1279 BEMB 5207 2683 2030 3847 BETB 611 1988 739 804 CADB 876 2162 757 913 CHAB 1276 3632 1235 1346 CIDB 671 1985 632 915 COBB 1538 4211 1681 1779 CRQB 1339 3651 433 896 DIOB 1037 2579 427 703 DJIB 834 1661 647 825 EASB 724 2125 820 884 EVEB 511 1000 438 640 GR3B 933 2345 0 0 GREB 1051 2911 679 1144 HBMB 1002 1655 1040 997 HEMB 990 1956 473 879 JIUB 756 2213 674 930 KETB 1435 3560 695 1087 KIUB 1029 2382 884 1052 KOLB 973 1859 1081 987 KRBB 1587 3506 820 1579 KRWB 614 1852 948 823 LICB 622 1706 383 654 MAHB 371 1355 280 611 MANB 602 1988 497 871 METB 1796 3867 307 1675 MIAB 834 2295 501 966 MSPB 1169 2306 734 1112 NOXB 807 2288 614 916 PAUB 798 1898 1006 932 PDMB 1056 2871 424 1048 REUB 948 1555 314 873 RIRB 1634 3235 436 1364 ROVB 2657 3765 1068 2882 SALB 540 1445 430 616 SANB 1056 2160 526 1087 SPJB 5137 2787 1882 3224 STJB 1379 3264 960 1392 SYPB 1860 1592 379 1280 THUB 4711 3186 1675 3599 TLSB 1236 3169 1305 1274 YASB 1001 2411 889 1024 YEMB 2148 3945 1091 2290 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 10.9 10.5 11.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -7.2 +- 1.0 mm TY = 2.0 +- 1.0 mm TZ = 27.9 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.8 +- 0.1 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 0.48 0.55 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr