****************************************************************************** dorisreport 25-Sep-2013 23:24:09 Message No 3449 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1754 = 13230 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1754 from 18-08-2013 to 24-08-2013 DORIS name (using day of start): 13230 Days of year: from 2013/230 to 2013/236 ============================================================== 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/ign13230wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign13230wd10.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 4) Global Statistics ==================== GPS week number 1754 from 18-08-2013 to 24-08-2013 Total number of stations = 46 Total number of satellites = 3 Combinations (daily to weekly) CHI2 / DOF = 2.60 the following satellites were used in the combination 2013 230 cryosat2 jason2 spot5 2013 231 cryosat2 jason2 spot5 2013 232 cryosat2 jason2 spot5 2013 233 cryosat2 jason2 spot5 2013 234 cryosat2 jason2 spot5 2013 235 cryosat2 jason2 spot5 2013 236 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 -------------------------------------------------------- 18-08-2013 33723 99 33624 0.3 19-08-2013 33802 107 33695 0.3 20-08-2013 33809 86 33723 0.3 21-08-2013 33517 91 33426 0.3 22-08-2013 33515 78 33437 0.2 23-08-2013 34091 69 34022 0.2 24-08-2013 32633 69 32564 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 8812 8745 8896 8830 8827 8905 8759 JASON2 16381 16750 16684 16371 16186 16690 15842 SPOT5 8431 8200 8143 8225 8424 8427 7963 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.422 0.422 0.422 0.426 0.417 0.428 0.421 JASON2 0.386 0.396 0.386 0.395 0.390 0.381 0.396 SPOT5 0.389 0.394 0.394 0.402 0.407 0.404 0.402 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 1387 1393 1373 1326 1441 1408 1397 AMVB 692 698 707 752 698 739 703 ARFB 598 536 581 557 582 565 540 ASEB 398 479 416 455 341 426 424 BADB 856 892 875 918 952 884 910 BEMB 1737 1784 1685 1717 1724 1822 1685 CADB 583 557 600 570 596 648 550 CHAB 919 886 857 915 897 871 901 CIDB 381 486 507 468 549 580 513 COBB 1000 889 990 931 940 904 834 DJIB 428 444 460 432 451 479 475 EASB 474 612 553 575 469 564 564 EVEB o 0 192 418 365 330 443 373 FUUB 408 425 383 489 472 450 300 GRFB 676 662 714 696 699 683 765 HBMB 642 514 656 610 620 584 602 HEMB 549 435 295 519 493 523 598 JIVB 548 475 573 532 570 439 491 KETB 880 884 921 885 842 872 946 KIUB 695 599 747 631 714 584 657 KOLB 590 517 560 691 609 643 501 KRBB 982 929 1010 935 991 952 903 KRWB 479 488 457 426 530 462 404 LICB 433 318 378 445 352 439 437 MAIB 467 500 438 372 453 536 354 MALB 465 419 450 339 453 388 356 MANB o 482 425 167 235 192 468 439 MEUB 949 928 1014 1010 1074 1006 1045 MIAB 578 531 431 502 544 559 565 MSPB 741 675 664 621 725 714 751 NOXB 618 546 497 546 579 647 585 PAUB 456 491 466 513 570 522 390 PDMB o 601 747 690 678 675 606 758 REUB 526 571 518 601 622 564 557 REZB 1035 1176 1097 982 1057 1055 1031 RIMB 447 505 443 494 486 517 499 RIRB 1044 972 999 1014 1053 1047 990 ROVB 1358 1373 1301 1358 1349 1381 1302 SALB 370 588 489 442 431 398 557 SPJB 1599 1515 1624 1517 1621 1600 1620 SYPB 1372 1471 1368 1387 1217 1513 1394 THUB 1624 1562 1755 1665 1672 1597 954 TLSB 791 808 778 857 633 712 761 TRJB 626 673 538 601 546 698 642 YASB 667 690 624 233 0 0 0 YEMB 1131 1075 1277 1234 1272 1165 1154 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 2642 4024 3059 AMVB 1203 2742 1044 ARFB 935 2105 919 ASEB 659 1483 797 BADB 1251 3746 1290 BEMB 5261 2997 3896 CADB 963 2191 950 CHAB 1330 3619 1297 CIDB 757 1855 872 COBB 1194 3654 1640 DJIB 720 1700 749 EASB 789 2095 927 EVEB 458 1178 485 FUUB 595 1503 829 GRFB 984 2694 1217 HBMB 1028 2307 893 HEMB 816 1895 701 JIVB 701 1998 929 KETB 1307 3679 1244 KIUB 1077 2589 961 KOLB 923 2221 967 KRBB 1539 3643 1520 KRWB 663 1714 869 LICB 615 1531 656 MAIB 562 1755 803 MALB 619 1435 816 MANB 415 1272 721 MEUB 1758 3630 1638 MIAB 733 1943 1034 MSPB 1064 2710 1117 NOXB 868 2220 930 PAUB 778 1737 893 PDMB 950 2659 1146 REUB 932 2161 866 REZB 2083 3626 1724 RIMB 665 1822 904 RIRB 1663 3868 1588 ROVB 2691 3887 2844 SALB 680 1615 980 SPJB 5158 2681 3257 SYPB 2925 3653 3144 THUB 4622 2864 3343 TLSB 1035 3047 1258 TRJB 883 2353 1088 YASB 446 1214 554 YEMB 2103 3977 2228 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 13.4 17.2 12.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -6.1 +- 1.6 mm TY = -5.4 +- 1.6 mm TZ = 4.2 +- 1.3 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 3.3 +- 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 0.17 0.21 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr