****************************************************************************** dorisreport 17-Jan-2012 00:32:56 Message No 2791 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1666 = 11345 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1666 from 11-12-2011 to 17-12-2011 DORIS name (using day of start): 11345 Days of year: from 2011/345 to 2011/351 ============================================================== 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/ign11345wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11345wd10.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 1666 from 11-12-2011 to 17-12-2011 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.49 the following satellites were used in the combination 2011 345 cryosat2 envisat jason2 spot4 spot5 2011 346 cryosat2 envisat jason2 spot4 spot5 2011 347 cryosat2 envisat jason2 spot4 spot5 2011 348 cryosat2 envisat jason2 spot4 spot5 2011 349 cryosat2 envisat jason2 spot4 spot5 2011 350 cryosat2 envisat jason2 spot4 spot5 2011 351 cryosat2 envisat 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 -------------------------------------------------------- 11-12-2011 47499 88 47411 0.2 12-12-2011 46732 95 46637 0.2 13-12-2011 47052 94 46958 0.2 14-12-2011 47083 66 47017 0.1 15-12-2011 47495 64 47431 0.1 16-12-2011 44243 92 44151 0.2 17-12-2011 45868 132 45736 0.3 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 8566 8454 8589 8462 8616 8465 8339 ENVISAT 7750 7759 7808 8026 7885 7781 7863 JASON2 17673 17352 17340 17296 17713 14680 16649 SPOT4 4927 4699 4823 4965 4979 4756 4629 SPOT5 8495 8373 8398 8268 8238 8469 8256 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.463 0.469 0.476 0.457 0.461 0.460 0.450 ENVISAT 0.460 0.434 0.437 0.454 0.468 0.447 0.453 JASON2 0.400 0.391 0.406 0.399 0.394 0.406 0.390 SPOT4 0.446 0.428 0.426 0.447 0.439 0.418 0.434 SPOT5 0.410 0.409 0.406 0.393 0.418 0.412 0.415 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 418 427 447 475 425 425 426 AMVB 410 364 299 446 371 378 440 ARFB 276 316 338 279 338 332 349 ASEB 213 253 162 248 217 254 245 BADB 0 460 332 485 556 474 552 BEMB 1261 1330 1406 1481 1468 1403 1300 BETB 422 394 368 419 389 395 350 CHAB 584 609 606 600 627 587 602 CIDB 411 374 371 389 366 379 428 COBB 836 809 742 817 766 780 832 CRQB 287 245 272 321 306 280 220 DIOB 277 305 314 303 290 273 258 DJIB 344 330 373 325 342 337 365 EASB 416 341 428 420 379 393 315 EVEB 107 0 0 0 0 0 0 GAVB 192 274 248 257 227 211 242 GR3B 0 0 0 0 0 0 0 GREB 472 434 466 495 452 480 469 HBMB 512 421 377 498 447 479 464 JIUB 370 343 397 416 413 417 342 KETB 441 453 518 367 396 433 468 KIUB 472 392 444 470 415 454 470 KOLB 476 479 407 417 443 422 523 KRBB 688 537 522 549 528 627 549 KRWB 176 187 272 250 272 244 262 LICB 256 337 316 338 271 286 356 MAHB 77 42 47 0 0 0 0 MALB 182 0 0 0 0 0 0 MANB o 363 454 280 331 349 319 414 MATB o 331 316 348 307 354 360 335 METB 554 536 523 496 503 488 562 MIAB 349 392 431 387 403 374 362 MSPB 385 449 430 442 550 414 438 NOXB 312 439 442 377 365 0 0 PAUB 453 445 396 390 423 440 460 PDMB 379 370 438 318 324 415 353 REUB 303 325 277 295 246 273 369 REZB 582 513 582 497 538 663 477 RIQB 265 251 314 263 341 268 317 ROVB 1165 948 940 1024 949 1105 1032 SALB 248 203 307 243 311 354 209 SANB o 429 370 329 425 325 317 385 SPJB 1316 1285 1288 1308 1232 1294 1291 STJB 557 498 594 519 557 617 448 SYPB 1109 1202 1096 1102 1125 1093 1129 THUB 1242 1130 1327 1321 1307 1344 1121 TLSB 597 567 588 591 578 583 596 YASB 430 422 440 437 467 446 383 YEMB 477 513 484 454 464 494 542 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 ENVISAT JASON2 SPOT4 SPOT5 --------------------------------------------- ADGB 4767 0 5438 0 3181 AMVB 1699 1257 3784 532 1125 ARFB 1404 1024 2930 442 951 ASEB 985 784 2335 352 688 BADB 1765 1261 4081 656 1114 BEMB 6473 4310 4360 1815 3994 BETB 1352 1187 2732 864 917 CHAB 2194 1707 5139 1245 1411 CIDB 1373 1187 2778 784 998 COBB 2772 2257 5565 1683 1874 CRQB 1966 866 4248 429 781 DIOB 1421 882 3720 421 810 DJIB 1419 1040 2928 708 924 EASB 1175 1166 2731 909 1048 EVEB 199 137 605 151 223 GAVB 961 922 3941 0 848 GR3B 1708 7 3868 0 0 GREB 1788 1449 4367 734 1218 HBMB 1595 1355 3134 1032 1055 JIUB 1439 1276 3146 671 1086 KETB 2250 1300 4806 795 1121 KIUB 1547 1312 3681 879 1222 KOLB 1700 1244 3436 1023 1056 KRBB 2069 1871 4198 776 1632 KRWB 1207 831 2848 784 745 LICB 1317 974 2668 576 911 MAHB 544 95 1124 0 107 MALB 644 432 1065 325 389 MANB 1589 1210 3112 511 1015 MATB 1892 1192 4454 202 1134 METB 2624 1904 4663 206 1768 MIAB 1729 1197 3578 668 1035 MSPB 1850 1379 4172 779 1143 NOXB 1257 868 2463 480 744 PAUB 1356 1230 2909 1008 1057 PDMB 1613 1204 4112 442 1110 REUB 1420 901 2869 446 955 REZB 3405 1951 4063 490 1771 RIQB 1024 797 873 332 1042 ROVB 4450 3283 5227 1157 2989 SALB 1132 912 2833 598 771 SANB 1612 1201 3676 435 1108 SPJB 6448 4050 4071 1946 3332 STJB 1994 1548 4535 967 1430 SYPB 4549 3704 4502 1279 3164 THUB 6379 3990 4875 1519 3696 TLSB 1789 1641 4189 1289 1322 YASB 1734 1311 3579 772 1070 YEMB 3462 8 5312 1120 2433 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- CRYOS ENVISAT JA2 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 11.8 10.4 9.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 6.9 +- 1.7 mm TY = -13.2 +- 1.4 mm TZ = 1.4 +- 1.4 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.4 +- 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 0.37 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr