****************************************************************************** dorisreport 13-Apr-2012 10:47:57 Message No 2897 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1677 = 12057 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1677 from 26-02-2012 to 03-03-2012 DORIS name (using day of start): 12057 Days of year: from 2012/57 to 2012/63 ============================================================== 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/ign12057wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12057wd10.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 1677 from 26-02-2012 to 03-03-2012 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.24 the following satellites were used in the combination 2012 57 cryosat2 envisat jason2 spot4 spot5 2012 58 cryosat2 envisat jason2 spot4 spot5 2012 59 cryosat2 envisat jason2 spot4 spot5 2012 60 cryosat2 envisat jason2 spot4 spot5 2012 61 cryosat2 envisat jason2 spot4 spot5 2012 62 cryosat2 envisat jason2 spot4 spot5 2012 63 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 -------------------------------------------------------- 26-02-2012 47285 62 47223 0.1 27-02-2012 46956 111 46845 0.2 28-02-2012 48447 95 48352 0.2 29-02-2012 45981 134 45847 0.3 01-03-2012 43191 73 43118 0.2 02-03-2012 47446 47 47399 0.1 03-03-2012 47973 86 47887 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 9064 9012 9226 8997 8786 9089 9056 ENVISAT 7934 7652 7959 7019 4800 7850 7876 JASON2 16931 17029 17715 16980 16625 17203 17481 SPOT4 5059 4823 4926 4494 4954 5122 5055 SPOT5 8235 8329 8526 8357 7953 8135 8419 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.427 0.430 0.439 0.423 0.429 0.440 0.433 ENVISAT 0.455 0.459 0.462 0.479 0.453 0.424 0.444 JASON2 0.418 0.419 0.414 0.410 0.404 0.409 0.401 SPOT4 0.443 0.434 0.433 0.425 0.435 0.445 0.426 SPOT5 0.406 0.410 0.417 0.421 0.405 0.392 0.399 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 425 413 425 462 449 430 428 AMVB 361 349 436 338 357 424 444 ARFB 280 254 356 375 116 347 284 ASEB 254 253 304 289 308 297 264 BADB 482 475 504 575 472 250 528 BEMB 1479 1447 1380 1432 1153 1412 1396 BETB 406 404 365 408 354 386 408 CHAB 583 573 582 550 600 566 593 CIDB 433 387 328 366 263 335 401 COBB 793 777 841 759 720 819 797 CRQB 291 290 245 249 242 257 306 DIOB 269 265 208 274 277 245 291 DJIB 355 303 349 355 306 376 330 EASB 382 393 403 326 365 425 346 EVEB o 229 218 212 237 147 213 238 GAVB 225 185 211 254 233 215 231 GR3B 0 0 0 0 0 0 0 GREB 468 487 493 420 388 472 449 HBMB 514 445 415 446 381 456 459 HEMB 0 209 331 245 313 425 344 JIUB 447 383 418 285 379 401 342 KETB 366 436 410 491 360 349 413 KIUB 420 196 239 0 213 447 412 KOLB 487 483 416 435 351 470 493 KRBB 637 572 542 464 404 678 560 KRWB 251 274 245 361 250 377 291 LICB 325 289 348 295 331 288 321 MAHB 0 113 329 321 240 97 0 MALB 168 24 329 170 0 0 0 MANB o 354 342 341 386 207 284 393 MATB o 341 350 289 372 352 364 313 METB 497 476 545 417 398 502 544 MIAB 370 423 311 458 336 342 408 MSPB 513 448 436 380 450 492 491 NOXB 340 325 262 464 404 345 370 PAUB 460 420 437 353 326 481 457 PDMB o 328 352 425 320 425 347 343 REUB 258 270 323 244 217 316 277 RIQB 308 147 113 148 90 153 120 ROVB 1047 1107 1006 1010 867 1070 1077 SALB 363 362 406 222 356 378 256 SANB o 296 346 357 357 300 388 383 SPJB 1257 1265 1291 1205 1190 1298 1309 STJB o 507 580 579 506 469 476 588 SYPB 1091 1046 1115 630 460 1077 1132 THUB 1315 1291 1325 1119 1025 1258 1293 TLSB 594 577 577 530 511 585 561 YASB 413 468 377 349 471 402 465 YEMB 464 481 510 492 457 494 482 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 5124 0 5281 0 3173 AMVB 1724 1210 3730 659 1079 ARFB 1373 885 2725 502 856 ASEB 1238 845 2212 427 865 BADB 2012 1511 4592 675 1302 BEMB 6593 4444 4423 1993 4019 BETB 1251 1169 2737 851 961 CHAB 2256 1674 5050 1201 1401 CIDB 1348 1129 2656 704 945 COBB 2912 2188 5575 1722 1785 CRQB 2053 869 4312 394 777 DIOB 1492 820 3535 421 770 DJIB 1537 976 3071 706 933 EASB 1198 1110 2657 894 1130 EVEB 615 480 1495 463 746 GAVB 1108 912 4113 0 795 GR3B 1489 10 4093 0 9 GREB 1814 1404 4341 741 1211 HBMB 1594 1179 3149 1085 1059 HEMB 1205 821 1862 410 744 JIUB 1300 1228 3061 692 1089 KETB 2320 1276 4794 585 1187 KIUB 944 824 2288 596 766 KOLB 1747 1304 3509 1046 974 KRBB 1987 1795 4322 786 1612 KRWB 1501 935 2532 838 840 LICB 1324 1015 2566 524 878 MAHB 1144 859 2265 351 797 MALB 1303 877 2491 700 855 MANB 1466 1199 3060 463 941 MATB 2180 1229 4565 247 1138 METB 2769 1751 4926 165 1812 MIAB 1955 1263 3505 657 996 MSPB 1988 1403 4123 927 1191 NOXB 1639 1287 3236 582 953 PAUB 1442 1226 2837 1024 1011 PDMB 1511 1160 3753 442 1123 REUB 1435 919 2929 392 904 RIQB 637 473 360 101 637 ROVB 4773 3387 5253 1224 2950 SALB 1454 977 2742 672 938 SANB 1512 1142 3708 463 1027 SPJB 6491 3999 4211 1837 3367 STJB 2051 1490 4728 998 1459 SYPB 3522 3085 3383 1033 2702 THUB 6430 3867 4721 1703 3593 TLSB 1775 1549 4402 1289 1323 YASB 1719 1347 3616 721 1068 YEMB 3947 42 5165 1086 2423 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 10.9 10.8 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 2.0 +- 1.0 mm TY = -15.6 +- 0.9 mm TZ = -7.8 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.4 +- 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 0.52 0.36 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr