****************************************************************************** dorisreport 02-Oct-2012 11:05:06 Message No 3109 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1703 = 12239 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1703 from 26-08-2012 to 01-09-2012 DORIS name (using day of start): 12239 Days of year: from 2012/239 to 2012/245 ============================================================== 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/ign12239wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12239wd10.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 1703 from 26-08-2012 to 01-09-2012 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 3.92 the following satellites were used in the combination 2012 239 cryosat2 jason2 spot4 spot5 2012 240 cryosat2 jason2 spot4 spot5 2012 241 cryosat2 jason2 spot4 spot5 2012 242 cryosat2 jason2 spot4 spot5 2012 243 cryosat2 jason2 spot4 spot5 2012 244 cryosat2 jason2 spot4 spot5 2012 245 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 -------------------------------------------------------- 26-08-2012 40325 61 40264 0.2 27-08-2012 40820 113 40707 0.3 28-08-2012 40581 83 40498 0.2 29-08-2012 39863 69 39794 0.2 30-08-2012 40260 68 40192 0.2 31-08-2012 40613 68 40545 0.2 01-09-2012 41298 84 41214 0.2 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 9306 9363 9325 9250 9491 9404 9884 JASON2 17653 17829 17775 17498 17824 17844 17587 SPOT4 5080 5141 4996 4671 4764 4980 5163 SPOT5 8225 8374 8402 8375 8113 8317 8580 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.447 0.449 0.458 0.451 0.457 0.457 0.440 JASON2 0.408 0.404 0.410 0.406 0.410 0.404 0.391 SPOT4 0.440 0.434 0.441 0.430 0.447 0.442 0.421 SPOT5 0.417 0.413 0.423 0.423 0.408 0.415 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 1290 1396 1388 1482 1347 1368 1313 AMVB 826 843 803 774 781 789 754 ARFB 672 620 581 654 621 654 650 ASEB 486 431 465 480 507 529 440 BADB 1010 1043 1012 1038 1029 1032 971 BEMB 2001 2024 1912 1986 2061 2111 1889 CADB 682 714 720 655 614 654 630 CHAB 995 1105 1073 1113 1056 1052 1120 CIDB 517 626 623 548 569 507 658 COBB 1159 1220 1263 1131 1210 1273 1279 CRQB 930 774 879 908 938 909 840 DIOB 802 661 790 693 751 616 757 EASB 632 673 636 718 672 709 580 EVEB o 454 369 501 409 388 431 492 GR3B 645 591 564 636 619 557 599 GRFB 727 787 847 770 820 868 833 HBMB 815 724 714 750 813 801 742 HEMB 662 655 523 444 601 689 670 JIUB 655 651 526 706 678 717 622 KETB 814 871 1077 1081 962 1004 954 KIUB 764 814 805 782 813 818 804 KOLB 748 745 760 771 505 579 764 KRBB 1109 1095 1057 1009 1052 921 1114 KRWB 576 610 560 579 611 621 533 LICB 520 518 409 482 478 437 479 MAHB 321 446 509 418 511 559 450 MALB 549 149 0 0 0 217 431 MANB o 458 508 592 375 520 434 513 MEUB 1023 1035 1125 1054 1000 1005 1028 MIAB 501 559 643 637 610 438 554 MSPB 788 861 782 898 839 823 730 NOXB 453 614 654 789 677 599 468 PAUB 511 675 608 497 590 599 640 PDMB o 771 714 761 585 711 641 783 REUB 521 674 673 635 558 612 624 REZB 1240 1180 1158 1065 1167 1139 1214 RIMB 542 612 523 475 235 572 612 RIRB 1075 1164 1186 1223 1073 1176 1014 ROVB 1476 1557 1414 1435 1508 1435 1576 SALB 0 0 0 0 0 473 583 SANB o 718 717 768 681 818 596 746 SPJB 1805 1826 1930 1805 1940 1802 1873 STJB o 1110 918 962 934 980 990 995 SYPB 1477 1529 1653 1595 1596 1483 1511 THUB 1968 1879 1862 1840 1943 1908 1953 TLSB 940 1034 807 881 1027 913 914 YASB 746 768 709 715 766 747 755 YEMB 1378 1398 1322 1313 1249 1350 1399 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 2594 3934 0 3056 AMVB 1130 2724 669 1047 ARFB 967 2102 471 912 ASEB 612 1535 412 779 BADB 1386 3690 755 1304 BEMB 5169 3005 2012 3798 CADB 1011 1959 757 942 CHAB 1312 3640 1241 1321 CIDB 702 1834 645 867 COBB 1238 3872 1715 1710 CRQB 1333 3606 404 835 DIOB 1087 2772 449 762 EASB 809 2022 815 974 EVEB 569 1455 384 636 GR3B 1188 3023 0 0 GRFB 980 2789 718 1165 HBMB 1009 2274 1073 1003 HEMB 976 2039 353 876 JIUB 689 2125 700 1041 KETB 1362 3680 588 1133 KIUB 1074 2619 893 1014 KOLB 879 2118 977 898 KRBB 1547 3529 737 1544 KRWB 650 1683 939 818 LICB 484 1732 471 636 MAHB 600 1528 393 693 MALB 295 421 290 340 MANB 619 1510 449 822 MEUB 1716 3508 407 1639 MIAB 726 1951 317 948 MSPB 1187 2596 781 1157 NOXB 906 2040 509 799 PAUB 660 1746 898 816 PDMB 887 2640 391 1048 REUB 933 2148 366 850 REZB 2196 3852 435 1680 RIMB 773 1712 260 826 RIRB 1611 3952 807 1541 ROVB 2683 3858 996 2864 SALB 178 465 165 248 SANB 1015 2591 386 1052 SPJB 5221 2716 1768 3276 STJB 1360 3171 978 1380 SYPB 3008 3593 1206 3037 THUB 4778 3227 1790 3558 TLSB 1059 2911 1289 1257 YASB 1022 2422 736 1026 YEMB 2064 3968 1053 2324 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 12.7 13.3 13.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -2.0 +- 1.2 mm TY = -16.0 +- 1.2 mm TZ = 26.8 +- 1.0 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 0.49 0.48 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr