****************************************************************************** dorisreport 09-Oct-2013 23:20:08 Message No 3461 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1755 = 13237 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1755 from 25-08-2013 to 31-08-2013 DORIS name (using day of start): 13237 Days of year: from 2013/237 to 2013/243 ============================================================== 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/ign13237wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign13237wd10.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 #week 1753: add cryosat2 in solution Current satellites in solution are now jason2, spot5 and cryosat2 #week 1754: goa.test.2013.09.20b Making previous changes official #week 1755: goa.test.2013.09.25c Latest version 4) Global Statistics ==================== GPS week number 1755 from 25-08-2013 to 31-08-2013 Total number of stations = 47 Total number of satellites = 3 Combinations (daily to weekly) CHI2 / DOF = 2.42 the following satellites were used in the combination 2013 237 cryosat2 jason2 spot5 2013 238 cryosat2 jason2 spot5 2013 239 cryosat2 jason2 spot5 2013 240 cryosat2 jason2 spot5 2013 241 cryosat2 jason2 spot5 2013 242 cryosat2 jason2 spot5 2013 243 cryosat2 jason2 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 -------------------------------------------------------- 25-08-2013 32983 80 32903 0.2 26-08-2013 33349 93 33256 0.3 27-08-2013 34270 85 34185 0.2 28-08-2013 33994 107 33887 0.3 29-08-2013 34121 59 34062 0.2 30-08-2013 34404 93 34311 0.3 31-08-2013 33809 79 33730 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 8744 8861 8988 8787 8957 9002 8916 JASON2 16094 16272 16624 16473 16812 16971 16498 SPOT5 8065 8123 8573 8627 8293 8338 8316 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.443 0.419 0.423 0.421 0.401 0.425 0.412 JASON2 0.398 0.384 0.392 0.380 0.387 0.386 0.388 SPOT5 0.403 0.398 0.397 0.387 0.394 0.398 0.398 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 1346 1213 1436 1413 1397 1272 1337 AMVB 678 696 710 722 674 764 701 ARFB 537 578 560 551 592 480 576 ASEB 440 379 426 376 477 422 445 BADB 572 559 781 872 881 902 908 BEMB 1766 1706 1730 1736 1762 1716 1678 CADB 561 560 621 523 631 594 634 CHAB 907 887 848 906 895 856 923 CIDB 507 511 499 414 487 484 460 COBB 934 1012 1049 999 927 1018 973 DIOB 0 0 0 0 338 603 669 DJIB 490 432 441 474 453 497 506 EASB 614 502 522 490 532 532 584 EVEB o 44 141 424 162 0 215 383 FUUB 475 395 449 436 418 445 434 GRFB 797 720 708 645 711 712 713 HBMB 630 652 637 574 576 575 679 HEMB 579 598 426 491 602 634 515 JIVB 478 582 477 536 491 622 585 KETB 899 876 894 943 930 880 738 KIUB 494 660 612 669 657 722 588 KOLB 589 570 668 607 595 542 592 KRBB 963 1060 923 992 845 1009 949 KRWB 443 486 449 411 443 509 414 LICB 443 290 396 364 249 383 424 MAIB 529 449 500 490 525 478 351 MALB 397 464 438 402 419 472 369 MANB o 400 456 414 466 479 360 39 MEUB 991 949 1026 1073 1017 1040 981 MIAB 504 514 567 604 583 537 519 MSPB 686 666 745 751 715 734 710 NOXB 477 513 561 603 588 567 568 PAUB 524 497 541 462 534 332 534 PDMB o 604 681 731 602 727 722 660 REUB 546 611 506 576 574 555 528 REZB 1188 1131 1052 1055 1104 1066 1109 RIMB 527 506 520 424 488 439 530 RIRB 902 1037 990 1064 1027 1023 977 ROVB 1336 1345 1366 1343 1311 1339 1384 SALB 489 491 453 384 608 545 436 SPJB 1555 1598 1581 1552 1580 1656 1554 SYPB 1454 1297 1361 1300 1342 1397 1371 THUB 1594 1686 1651 1655 1586 1740 1639 TLSB 773 736 843 792 834 748 755 TRJB 673 580 571 696 717 587 640 YASB 0 303 511 711 290 0 0 YEMB 1210 1288 1223 1248 1083 1220 1261 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 SPOT5 -------------------------------- ADGB 2630 3731 3053 AMVB 1199 2743 1003 ARFB 928 2040 906 ASEB 628 1560 777 BADB 1053 3320 1102 BEMB 5293 2987 3814 CADB 1020 2156 948 CHAB 1317 3578 1327 CIDB 758 1688 916 COBB 1277 3906 1729 DIOB 312 1045 253 DJIB 678 1774 841 EASB 864 1979 933 EVEB 295 706 368 FUUB 581 1551 920 GRFB 991 2834 1181 HBMB 1029 2240 1054 HEMB 959 2016 870 JIVB 696 2049 1026 KETB 1355 3566 1239 KIUB 1034 2395 973 KOLB 1006 2230 927 KRBB 1449 3739 1553 KRWB 560 1731 864 LICB 617 1322 610 MAIB 679 1819 824 MALB 584 1484 893 MANB 500 1406 708 MEUB 1629 3821 1627 MIAB 755 2095 978 MSPB 1189 2674 1144 NOXB 930 2068 879 PAUB 796 1733 895 PDMB 982 2687 1058 REUB 967 2052 877 REZB 2133 3766 1806 RIMB 655 1898 881 RIRB 1637 3850 1533 ROVB 2746 3810 2868 SALB 672 1809 925 SPJB 5105 2745 3226 SYPB 2937 3473 3112 THUB 4712 3215 3624 TLSB 925 3288 1268 TRJB 1026 2469 969 YASB 374 967 474 YEMB 2097 4129 2307 6.4) statistics per station and per satellite (deleted stations) ----------------------------------------------------------------------- CRYOSAT2 JASON2 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 14.4 12.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 0.9 +- 1.6 mm TY = -3.7 +- 1.6 mm TZ = 4.1 +- 1.4 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 2.3 +- 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 0.32 0.36 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr