****************************************************************************** dorisreport 30-Jan-2012 13:12:37 Message No 2811 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1668 = 11359 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1668 from 25-12-2011 to 31-12-2011 DORIS name (using day of start): 11359 Days of year: from 2011/359 to 2011/365 ============================================================== 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/ign11359wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11359wd10.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 1668 from 25-12-2011 to 31-12-2011 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.64 the following satellites were used in the combination 2011 359 cryosat2 envisat jason2 spot4 spot5 2011 360 cryosat2 envisat jason2 spot4 spot5 2011 361 cryosat2 envisat jason2 spot4 spot5 2011 362 cryosat2 envisat jason2 spot4 spot5 2011 363 cryosat2 envisat jason2 spot4 spot5 2011 364 cryosat2 envisat jason2 spot4 spot5 2011 365 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 -------------------------------------------------------- 25-12-2011 47919 119 47800 0.2 26-12-2011 48109 62 48047 0.1 27-12-2011 44135 79 44056 0.2 28-12-2011 44149 140 44009 0.3 29-12-2011 46021 96 45925 0.2 30-12-2011 48358 90 48268 0.2 31-12-2011 47754 66 47688 0.1 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 8378 8477 8118 8346 8488 8559 8456 ENVISAT 7728 8169 5856 5352 5951 8105 8167 JASON2 17981 17473 16742 16840 17766 17976 17280 SPOT4 5215 5232 4855 4862 4853 5116 5235 SPOT5 8498 8696 8485 8609 8867 8512 8550 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.485 0.447 0.469 0.460 0.449 0.461 0.465 ENVISAT 0.454 0.442 0.458 0.422 0.424 0.445 0.446 JASON2 0.402 0.413 0.403 0.401 0.416 0.403 0.389 SPOT4 0.438 0.437 0.442 0.421 0.435 0.468 0.430 SPOT5 0.410 0.406 0.411 0.419 0.400 0.389 0.409 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 430 417 589 779 597 433 426 AMVB 406 419 358 338 374 412 432 ARFB 398 384 250 267 242 380 380 ASEB 237 220 203 276 245 227 281 BADB 494 480 206 463 445 376 486 BEMB 1474 1527 1266 1013 1267 1465 1510 BETB 398 407 386 328 371 389 432 CHAB 595 600 503 545 497 584 595 CIDB 369 370 338 325 214 336 364 COBB 811 779 748 577 664 813 775 CRQB 330 266 291 185 262 341 271 DIOB 293 340 203 183 295 301 376 DJIB 302 346 349 318 328 331 364 EASB 401 391 340 265 323 372 383 EVEB o 188 233 196 216 216 182 224 GAVB 245 196 198 208 140 101 103 GR3B 0 0 0 0 0 0 0 GREB 496 458 387 346 375 491 420 HBMB 480 475 462 347 376 440 505 HEMB 308 204 0 0 0 0 0 JIUB 463 365 369 212 235 456 438 KETB 370 372 367 421 376 416 352 KIUB 410 448 380 324 334 436 442 KOLB 280 474 423 483 378 403 493 KRBB 573 564 519 417 500 559 608 KRWB 217 213 161 186 244 274 308 LICB 337 295 259 332 247 343 296 MAHB 207 322 290 258 264 182 0 MALB 363 319 302 326 334 394 348 MANB o 356 424 305 355 256 349 398 MATB o 339 388 338 250 384 302 355 METB 484 270 0 134 518 482 568 MIAB 351 425 322 383 411 333 418 MSPB 533 474 361 346 406 500 523 NOXB 343 371 269 382 466 329 395 PAUB 421 424 400 344 361 411 315 PDMB o 334 367 316 302 313 395 335 REUB 271 247 271 382 242 281 265 REZB 518 579 559 409 418 573 536 RIQB 211 171 145 121 110 235 184 ROVB 961 1022 932 769 832 981 1044 SALB 246 320 249 120 240 370 339 SANB o 307 377 270 409 297 276 352 SPJB 1291 1253 1130 1000 1073 1299 1221 STJB o 512 557 474 447 405 543 526 SYPB 1089 1065 935 928 890 1078 1125 THUB 1293 1267 1125 938 1159 1354 1284 TLSB 609 569 522 466 549 611 597 YASB 435 470 363 299 486 443 461 YEMB 475 486 568 631 578 467 479 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 4697 743 5313 0 3164 AMVB 1713 1121 3698 672 1083 ARFB 1315 805 2998 681 938 ASEB 1018 745 2169 335 786 BADB 2056 1296 4099 520 1275 BEMB 6345 3780 4398 2106 4034 BETB 1312 1039 2706 859 952 CHAB 2136 1514 4849 1252 1381 CIDB 1306 1001 2658 568 954 COBB 2711 1965 5433 1697 1750 CRQB 1970 742 4334 441 888 DIOB 1472 853 3736 403 857 DJIB 1379 894 2817 722 900 EASB 1122 979 2643 897 1128 EVEB 647 426 1438 434 715 GAVB 889 462 4050 0 822 GR3B 1678 2 3974 0 4 GREB 1799 1187 4345 733 1167 HBMB 1511 1121 3238 1120 1011 HEMB 297 191 548 120 230 JIUB 1415 1002 3052 786 1095 KETB 2165 1166 4465 465 1195 KIUB 1472 995 3409 905 1088 KOLB 1597 1120 3480 1035 940 KRBB 1989 1563 4314 747 1652 KRWB 1055 670 2669 799 785 LICB 1159 884 2669 587 839 MAHB 838 679 872 394 713 MALB 1288 925 2472 732 917 MANB 1505 985 3069 648 971 MATB 2144 1087 4629 303 1117 METB 1904 1259 2988 151 1214 MIAB 1733 1114 3476 677 1013 MSPB 1827 1187 4114 910 1190 NOXB 1438 1194 3226 557 989 PAUB 1381 1039 2954 1061 1022 PDMB 1550 951 4011 423 1112 REUB 1384 879 2929 357 860 REZB 3317 1700 3807 494 1747 RIQB 588 347 408 222 696 ROVB 4243 2839 5229 973 2986 SALB 1276 800 2805 598 920 SANB 1577 1077 3801 305 1062 SPJB 6466 3487 4176 1766 3327 STJB 1980 1233 4447 958 1431 SYPB 4219 3205 4542 1042 3156 THUB 6311 3269 4651 1843 3655 TLSB 1666 1399 4110 1316 1342 YASB 1645 1165 3659 878 1128 YEMB 3489 363 5123 1071 2411 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 10.0 10.4 9.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 6.7 +- 1.1 mm TY = -22.5 +- 1.0 mm TZ = 0.9 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.1 +- 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 0.44 0.42 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr