****************************************************************************** dorisreport 24-Sep-2011 19:29:28 Message No 2660 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1649 = 11226 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1649 from 14-08-2011 to 20-08-2011 DORIS name (using day of start): 11226 Days of year: from 2011/226 to 2011/232 ============================================================== 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/ign11226wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11226wd10.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) 4) Global Statistics ==================== GPS week number 1649 from 14-08-2011 to 20-08-2011 Total number of stations = 44 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.36 the following satellites were used in the combination 2011 226 cryosat2 envisat jason2 spot4 spot5 2011 227 cryosat2 envisat jason2 spot4 spot5 2011 228 cryosat2 envisat jason2 spot4 spot5 2011 229 cryosat2 envisat jason2 spot4 spot5 2011 230 cryosat2 envisat jason2 spot4 spot5 2011 231 cryosat2 envisat jason2 spot4 spot5 2011 232 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 -------------------------------------------------------- 14-08-2011 43859 69 43790 0.2 15-08-2011 42666 60 42606 0.1 16-08-2011 43206 72 43134 0.2 17-08-2011 42105 65 42040 0.2 18-08-2011 43070 78 42992 0.2 19-08-2011 44236 106 44130 0.2 20-08-2011 43924 242 43682 0.6 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 8059 8121 8080 8064 8146 8077 8204 ENVISAT 7616 7344 7432 7103 7156 7653 7598 JASON2 15812 15221 15663 15462 15731 15957 15522 SPOT4 4543 4340 4230 3945 4317 4630 4492 SPOT5 7760 7580 7729 7466 7642 7813 7866 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.448 0.431 0.441 0.445 0.464 0.467 0.442 ENVISAT 0.453 0.445 0.453 0.469 0.460 0.464 0.444 JASON2 0.406 0.390 0.406 0.404 0.412 0.417 0.410 SPOT4 0.427 0.452 0.466 0.431 0.451 0.431 0.432 SPOT5 0.403 0.405 0.405 0.403 0.416 0.416 0.411 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 427 434 494 431 424 423 433 AMVB 393 391 441 376 388 418 387 ARFB 354 333 292 395 362 335 341 ASEB 334 282 237 263 294 309 355 BADB 464 564 505 493 453 484 556 BEMB 1411 1371 1413 1542 1252 1341 1375 BETB 420 363 350 313 258 403 374 CHAB 610 601 565 620 585 594 608 CIDB 428 346 370 343 394 433 362 COBB 832 733 810 757 753 839 764 CRQB 269 330 353 308 213 222 278 DIOB 288 321 296 297 283 272 303 DJIB 368 358 378 274 299 395 339 EASB 335 383 389 362 438 324 382 EVEB 230 229 176 207 204 203 225 GAVB 256 218 259 265 207 241 272 GR3B 0 0 0 0 0 0 0 GREB 351 406 453 408 388 465 416 HBMB 258 0 0 0 253 470 383 JIUB 368 229 318 375 370 316 230 KETB 407 488 379 388 420 454 461 KIUB 422 420 405 413 400 463 404 KOLB 536 410 438 348 412 509 457 KRBB 531 489 633 520 679 590 509 KRWB 427 430 385 419 392 392 464 LICB 366 253 335 232 240 321 351 MAHB 363 214 249 311 299 314 243 MATB o 359 367 312 339 370 338 364 MIAB 367 427 409 394 403 387 443 MSPB 458 466 530 502 497 406 406 PAUB 462 405 215 0 0 0 0 PDMB 323 439 348 352 384 319 386 REUB 296 327 282 258 281 389 338 REZB 498 584 543 503 611 574 584 RIQB 613 382 356 454 352 443 465 ROVB 912 983 1083 932 1107 1094 1000 SALB 291 442 342 351 490 296 374 SANB o 359 400 480 340 354 429 434 SPJB 1255 1240 1323 1225 1269 1286 1291 STJB 478 581 422 450 573 487 540 SYPB 1162 1071 1063 1111 1078 1094 1176 THUB 1327 1277 1233 1304 1212 1201 1193 TLSB 574 585 569 420 496 573 574 YASB 0 0 225 483 455 412 441 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 4969 0 5463 0 3182 AMVB 1751 1248 3729 574 1112 ARFB 1535 1117 2945 437 993 ASEB 1186 1030 2383 413 870 BADB 2089 1682 4424 723 1397 BEMB 6653 4437 4480 1881 4021 BETB 1344 1079 2739 793 921 CHAB 2172 1719 5065 1199 1401 CIDB 1317 1175 2793 733 1002 COBB 2729 2212 5493 1623 1888 CRQB 2084 852 4331 444 899 DIOB 1510 877 3643 475 841 DJIB 1461 1025 2921 757 923 EASB 1303 1138 2700 896 1014 EVEB 538 486 1492 439 692 GAVB 905 974 2113 0 875 GR3B 1022 7 4166 0 6 GREB 1691 1463 4268 633 1207 HBMB 1628 1146 3213 892 955 JIUB 1395 1179 2919 486 1067 KETB 2328 1285 4911 731 1132 KIUB 1494 1207 3518 901 1160 KOLB 1659 1263 3469 999 1096 KRBB 2069 1835 4100 804 1676 KRWB 1535 1196 2834 986 959 LICB 1340 932 2616 603 847 MAHB 1219 956 2347 432 947 MATB 1983 1215 4417 269 1130 MIAB 1709 1306 3519 729 1074 MSPB 1912 1410 4308 864 1116 PAUB 872 645 1892 500 636 PDMB 1436 1199 3937 464 1072 REUB 1514 902 2916 473 968 REZB 3482 2053 3976 578 1718 RIQB 1531 1261 1449 488 1467 ROVB 4674 3328 5187 1057 2971 SALB 1474 1147 2783 702 908 SANB 1694 1332 3805 510 1163 SPJB 6479 3990 4162 2007 3352 STJB 1950 1547 4295 920 1396 SYPB 4496 3730 4745 1187 3164 THUB 6336 3944 4665 1438 3693 TLSB 1676 1547 4239 1314 1326 YASB 1145 878 2312 551 707 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 10.5 12.3 11.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -6.5 +- 0.9 mm TY = -7.8 +- 1.0 mm TZ = 3.5 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.2 +- 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 0.30 0.72 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr