****************************************************************************** dorisreport 04-Jan-2012 02:17:06 Message No 2778 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1663 = 11324 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1663 from 20-11-2011 to 26-11-2011 DORIS name (using day of start): 11324 Days of year: from 2011/324 to 2011/330 ============================================================== 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/ign11324wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11324wd10.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 1663 from 20-11-2011 to 26-11-2011 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.51 the following satellites were used in the combination 2011 324 cryosat2 envisat jason2 spot4 spot5 2011 325 cryosat2 envisat jason2 spot4 spot5 2011 326 cryosat2 envisat jason2 spot4 spot5 2011 327 cryosat2 envisat jason2 spot4 spot5 2011 328 cryosat2 envisat jason2 spot4 spot5 2011 329 cryosat2 envisat jason2 spot4 spot5 2011 330 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 -------------------------------------------------------- 20-11-2011 46214 120 46094 0.3 21-11-2011 46109 146 45963 0.3 22-11-2011 42975 81 42894 0.2 23-11-2011 45226 71 45155 0.2 24-11-2011 46065 73 45992 0.2 25-11-2011 47179 104 47075 0.2 26-11-2011 47879 86 47793 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 8386 8250 8063 8137 8430 8605 8585 ENVISAT 7756 7542 7610 7544 7789 7391 8073 JASON2 16800 17021 16733 16871 16631 17336 17491 SPOT4 4953 4827 4774 4711 4928 5083 4948 SPOT5 8199 8323 5714 7892 8214 8660 8696 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.484 0.464 0.465 0.453 0.464 0.454 0.453 ENVISAT 0.463 0.457 0.456 0.451 0.460 0.453 0.448 JASON2 0.425 0.410 0.396 0.403 0.399 0.402 0.400 SPOT4 0.454 0.428 0.443 0.438 0.438 0.450 0.446 SPOT5 0.428 0.423 0.426 0.403 0.418 0.402 0.408 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 417 421 428 493 427 416 424 AMVB 393 458 405 412 406 403 396 ARFB 373 294 369 301 332 332 336 ASEB 208 236 225 312 244 259 202 BADB 486 479 482 227 514 428 457 BEMB 1347 1413 1360 1471 1426 1414 1387 BETB 434 355 366 372 356 430 395 CHAB 600 598 553 621 593 571 607 CIDB 413 385 376 360 309 425 425 COBB 803 784 809 784 701 837 824 CRQB 272 202 313 326 303 294 229 DIOB 289 309 287 325 252 271 277 DJIB 370 368 360 355 352 323 366 EASB 363 364 380 362 433 355 337 EVEB 244 223 192 206 217 213 234 GAVB 232 250 240 260 220 221 249 GR3B 0 0 0 0 0 0 0 GREB 471 478 391 458 472 477 490 HBMB 494 415 440 450 473 508 415 JIUB 411 380 384 361 441 466 386 KETB 392 411 464 397 425 394 433 KIUB 435 404 454 398 427 454 442 KOLB 497 445 468 421 405 492 506 KRBB 581 576 604 585 576 674 547 KRWB 276 248 275 301 269 255 297 LICB 257 363 319 260 309 268 375 MAHB 141 97 68 136 0 0 0 MALB 327 341 0 0 158 360 348 MANB o 315 298 305 332 325 361 332 MATB o 375 377 357 346 370 319 384 METB 548 521 523 516 479 548 541 MIAB 395 348 411 432 362 388 409 MSPB 492 404 481 491 530 459 418 NOXB 353 311 383 452 328 319 366 PAUB 444 436 404 410 431 380 413 PDMB 329 390 395 354 397 330 340 REUB 284 324 327 275 226 285 304 REZB 583 528 584 491 599 497 519 RIQB 366 325 393 249 331 279 282 ROVB 0 0 0 131 981 1102 912 SALB 225 354 270 236 372 284 199 SANB o 342 356 392 469 237 352 420 SPJB 1182 1163 1261 1289 1257 1217 1312 STJB 547 536 524 522 582 544 528 SYPB 1127 1110 1125 1130 1051 1101 1101 THUB 1202 1252 1294 1270 1279 1322 1307 TLSB 590 587 577 591 544 587 563 YASB 453 471 379 0 0 430 466 YEMB 477 512 483 460 477 487 505 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 4814 0 5331 0 3160 AMVB 1742 1289 3647 587 1137 ARFB 1313 1039 2750 510 962 ASEB 1104 756 1892 376 761 BADB 1996 1549 4481 459 1245 BEMB 6505 4445 4463 1938 3934 BETB 1318 1128 2697 885 960 CHAB 2154 1705 5023 1189 1402 CIDB 1302 1171 2621 821 970 COBB 2755 2205 5560 1654 1880 CRQB 1925 816 4243 416 825 DIOB 1369 853 3636 450 819 DJIB 1477 1028 2895 751 955 EASB 1112 1117 2580 880 1042 EVEB 610 475 1485 488 708 GAVB 995 948 3737 2 831 GR3B 1594 6 3798 0 3 GREB 1789 1450 4282 751 1233 HBMB 1564 1287 3161 1044 1062 JIUB 1430 1212 3039 886 1095 KETB 2205 1317 4856 612 1125 KIUB 1403 1227 3701 850 1212 KOLB 1603 1312 3487 1079 1030 KRBB 1953 1849 3992 893 1673 KRWB 1319 870 1890 837 786 LICB 1363 1062 2541 540 879 MAHB 705 243 566 115 172 MALB 1082 749 2004 525 704 MANB 1500 1202 3091 315 975 MATB 2073 1197 4421 347 1138 METB 2709 1841 4954 288 1792 MIAB 1688 1301 3521 653 1013 MSPB 1831 1423 4153 863 1158 NOXB 1493 1281 3085 486 961 PAUB 1397 1228 2822 1018 1025 PDMB 1529 1157 3988 425 1125 REUB 1365 914 2870 349 949 REZB 3293 2027 3924 504 1720 RIQB 1088 867 1061 343 1165 ROVB 3905 2790 4559 866 2506 SALB 1370 891 2314 622 867 SANB 1557 1293 3731 382 1064 SPJB 6199 3991 4190 1756 3267 STJB 1935 1550 4598 928 1449 SYPB 4536 3730 4429 1131 3175 THUB 6121 3917 4708 1852 3645 TLSB 1592 1570 4074 1300 1298 YASB 1159 961 2504 656 721 YEMB 3285 12 5284 1101 2424 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 12.6 11.3 11.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -4.5 +- 0.9 mm TY = -27.6 +- 0.9 mm TZ = 1.2 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.5 +- 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 0.38 0.41 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr