****************************************************************************** dorisreport 14-Feb-2012 17:19:02 Message No 2826 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1669 = 12001 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1669 from 01-01-2012 to 07-01-2012 DORIS name (using day of start): 12001 Days of year: from 2012/1 to 2012/7 ============================================================== 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/ign12001wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12001wd10.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 1669 from 01-01-2012 to 07-01-2012 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.60 the following satellites were used in the combination 2012 1 cryosat2 envisat jason2 spot4 spot5 2012 2 cryosat2 envisat jason2 spot4 spot5 2012 3 cryosat2 envisat spot4 spot5 2012 4 cryosat2 envisat spot4 spot5 2012 5 cryosat2 envisat spot4 spot5 2012 6 cryosat2 envisat spot4 spot5 2012 7 cryosat2 envisat 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 -------------------------------------------------------- 01-01-2012 47668 91 47577 0.2 02-01-2012 47998 111 47887 0.2 03-01-2012 30490 57 30433 0.2 04-01-2012 29124 24 29100 0.1 05-01-2012 31202 41 31161 0.1 06-01-2012 31307 54 31253 0.2 07-01-2012 30775 170 30605 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 8377 8552 8457 8388 8722 8887 8808 ENVISAT 8078 7970 8252 7825 8441 8292 7865 JASON2 17456 17651 0 0 0 0 0 SPOT4 5000 4971 4926 4769 5322 5132 5117 SPOT5 8666 8743 8798 8118 8676 8942 8815 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.449 0.455 0.450 0.456 0.453 0.456 0.465 ENVISAT 0.440 0.444 0.472 0.459 0.446 0.452 0.443 JASON2 0.395 0.400 0.000 0.000 0.000 0.000 0.000 SPOT4 0.436 0.441 0.441 0.436 0.446 0.436 0.423 SPOT5 0.406 0.414 0.415 0.402 0.388 0.411 0.421 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 417 429 477 449 426 426 427 AMVB 406 417 326 416 354 457 422 ARFB 364 339 389 353 336 338 312 ASEB 258 302 274 332 308 210 291 BADB 483 546 524 543 493 523 527 BEMB 1403 1329 1244 150 1435 1456 1291 BETB 383 407 385 372 421 411 371 CHAB 594 579 599 607 553 586 538 CIDB 378 368 369 320 405 379 355 COBB 746 836 767 732 809 783 827 CRQB 307 294 307 312 236 219 277 DIOB 329 297 277 314 265 285 220 DJIB 388 348 396 337 386 326 351 EASB 383 332 323 418 382 336 391 EVEB o 217 207 225 195 185 235 217 GAVB 106 131 214 248 231 240 180 GR3B 0 0 0 0 0 0 0 GREB 492 404 423 497 431 482 449 HBMB 448 413 403 452 514 456 439 HEMB 0 0 171 224 373 198 113 JIUB 409 316 302 416 397 318 332 KETB 440 457 497 376 429 411 474 KIUB 452 459 419 417 469 459 444 KOLB 467 481 471 355 490 493 423 KRBB 619 578 543 543 669 583 587 KRWB 292 329 359 381 310 246 293 LICB 314 365 268 359 339 307 284 MAHB 0 0 0 0 152 270 302 MALB 360 346 333 396 363 335 358 MANB o 344 455 398 298 352 402 411 MATB o 358 318 373 337 332 328 305 METB 567 599 563 489 453 484 489 MIAB 406 407 478 387 404 420 382 MSPB 432 395 555 474 535 412 390 NOXB 324 327 503 326 370 410 328 PAUB 438 460 434 410 447 431 444 PDMB o 404 359 389 386 359 350 443 REUB 257 380 279 242 297 293 340 REZB 611 516 534 532 534 653 591 RIQB 203 159 148 198 254 148 123 ROVB 931 1024 1017 996 1011 1075 923 SALB 322 309 314 432 381 320 441 SANB o 318 418 375 229 303 432 346 SPJB 1208 1322 1343 1321 1265 1345 1304 STJB o 601 547 512 544 456 530 551 SYPB 1044 1142 1136 1080 1098 1125 1129 THUB 1338 1198 1197 1338 1193 1221 1215 TLSB 592 567 583 609 577 576 560 YASB 479 352 447 476 404 468 374 YEMB 484 515 488 450 495 480 523 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 4731 0 5515 0 3174 AMVB 1663 1283 3759 537 1134 ARFB 1386 1066 2893 616 974 ASEB 1074 904 2348 375 876 BADB 2026 1660 4391 793 1385 BEMB 5435 3678 3692 1591 3404 BETB 1296 1131 2765 856 962 CHAB 2045 1615 5103 1196 1412 CIDB 1336 1143 2715 732 1003 COBB 2715 2214 5398 1686 1824 CRQB 1956 887 4180 439 801 DIOB 1474 920 3659 395 767 DJIB 1431 1084 2837 748 920 EASB 1169 1195 2619 876 1021 EVEB 617 473 1517 468 703 GAVB 952 564 3974 0 865 GR3B 1606 2 3821 0 0 GREB 1759 1463 4307 634 1209 HBMB 1490 1219 3156 1024 1061 HEMB 675 437 821 286 413 JIUB 1355 1207 3010 483 1102 KETB 2230 1350 4724 820 1123 KIUB 1460 1319 3505 889 1191 KOLB 1576 1245 3508 975 1095 KRBB 1995 1886 4233 845 1668 KRWB 1249 1043 2745 859 883 LICB 1390 966 2393 512 923 MAHB 428 343 919 135 341 MALB 1295 1018 2356 713 947 MANB 1546 1184 3017 626 1023 MATB 1935 1205 4544 184 1109 METB 2753 1832 4765 280 1809 MIAB 1721 1243 3492 728 1053 MSPB 1917 1349 4180 856 1125 NOXB 1632 1199 3209 691 944 PAUB 1380 1238 3000 992 1069 PDMB 1526 1284 3970 533 1059 REUB 1436 895 2862 452 938 REZB 3411 1998 3917 586 1765 RIQB 640 488 388 233 633 ROVB 4389 3362 5242 933 2946 SALB 1267 1178 2798 661 918 SANB 1545 1262 3646 243 1136 SPJB 6397 4057 3846 2034 3365 STJB 1860 1611 4393 907 1419 SYPB 4400 3647 4593 1272 3163 THUB 6213 4056 4477 1341 3696 TLSB 1752 1601 4166 1290 1327 YASB 1648 1353 3629 729 1068 YEMB 3479 8 5078 1155 2422 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 12.2 12.7 8.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 6.0 +- 1.1 mm TY = -24.9 +- 0.9 mm TZ = 0.6 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.8 +- 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 0.82 0.48 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr