****************************************************************************** dorisreport 28-Jan-2012 10:55:29 Message No 2806 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1667 = 11352 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1667 from 18-12-2011 to 24-12-2011 DORIS name (using day of start): 11352 Days of year: from 2011/352 to 2011/358 ============================================================== 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/ign11352wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11352wd10.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 1667 from 18-12-2011 to 24-12-2011 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.51 the following satellites were used in the combination 2011 352 cryosat2 envisat jason2 spot4 spot5 2011 353 cryosat2 envisat jason2 spot4 spot5 2011 354 cryosat2 envisat jason2 spot4 spot5 2011 355 cryosat2 envisat jason2 spot4 spot5 2011 356 cryosat2 envisat jason2 spot4 spot5 2011 357 cryosat2 envisat jason2 spot4 spot5 2011 358 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 -------------------------------------------------------- 18-12-2011 45818 103 45715 0.2 19-12-2011 46471 68 46403 0.1 20-12-2011 46835 78 46757 0.2 21-12-2011 44798 89 44709 0.2 22-12-2011 48368 152 48216 0.3 23-12-2011 46154 66 46088 0.1 24-12-2011 48530 56 48474 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 8417 8390 8386 5268 8689 8631 8495 ENVISAT 7748 7755 7963 8015 8182 6366 8216 JASON2 16438 17132 17303 17549 17777 17475 17909 SPOT4 4668 4902 5026 5207 4933 4817 5074 SPOT5 8444 8224 8079 8670 8635 8799 8780 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.436 0.454 0.446 0.479 0.452 0.461 0.459 ENVISAT 0.428 0.459 0.455 0.452 0.449 0.441 0.436 JASON2 0.380 0.406 0.406 0.396 0.404 0.404 0.391 SPOT4 0.439 0.443 0.443 0.446 0.412 0.428 0.464 SPOT5 0.398 0.413 0.409 0.409 0.408 0.399 0.392 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 426 486 423 412 424 434 496 AMVB 393 439 402 382 407 373 440 ARFB 377 281 401 350 347 342 259 ASEB 276 212 289 251 242 256 249 BADB 591 513 322 452 425 543 527 BEMB 1422 1411 1463 1465 1403 1436 1437 BETB 401 413 409 381 416 396 384 CHAB 592 602 606 594 588 614 602 CIDB 373 338 363 349 432 363 302 COBB 734 806 732 764 866 772 738 CRQB 245 276 306 246 256 322 340 DIOB 331 281 278 292 270 289 297 DJIB 356 363 342 317 377 377 332 EASB 379 429 388 390 372 338 420 EVEB o 0 77 225 226 213 240 191 GAVB 278 236 242 229 234 262 273 GR3B 0 0 0 0 0 0 0 GREB 435 483 477 460 469 428 459 HBMB 388 487 500 474 432 405 447 HEMB 0 0 0 435 279 268 272 JIUB 233 426 437 404 439 301 362 KETB 497 402 355 440 426 450 420 KIUB 433 430 393 439 481 64 416 KOLB 455 368 467 426 500 480 371 KRBB 522 603 526 662 650 498 582 KRWB 303 243 253 204 206 245 267 LICB 374 346 367 293 340 330 277 MAHB 0 0 0 116 68 131 111 MALB 0 180 337 310 357 359 357 MANB o 408 321 372 389 340 365 364 MATB o 393 288 334 381 358 364 349 METB 475 501 524 527 566 533 525 MIAB 477 373 381 409 368 453 402 MSPB 471 433 539 465 404 499 458 NOXB 0 0 0 0 122 506 422 PAUB 382 419 455 369 483 424 412 PDMB o 403 361 337 372 317 374 430 REUB 282 255 259 227 324 354 251 REZB 592 507 554 579 480 567 513 RIQB 317 140 205 167 153 136 144 ROVB 975 1025 963 1095 939 975 1023 SALB 205 350 326 383 301 238 328 SANB o 363 387 274 342 386 426 424 SPJB 1256 1276 1221 1215 1254 1242 1320 STJB o 546 583 493 591 513 494 568 SYPB 1104 1084 1059 1114 1123 1138 1039 THUB 1223 1310 1254 1306 1369 1300 1302 TLSB 536 596 608 585 555 582 559 YASB 397 389 442 465 408 398 487 YEMB 504 456 473 477 503 489 422 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 4712 0 5380 0 3243 AMVB 1737 1287 3829 593 1097 ARFB 1340 1066 2949 479 970 ASEB 948 757 2252 487 722 BADB 1988 1620 4406 635 1300 BEMB 6420 4458 4301 2010 4038 BETB 1356 1123 2693 844 986 CHAB 2160 1704 5160 1249 1390 CIDB 1274 1141 2661 677 970 COBB 2859 2177 5527 1637 1823 CRQB 1925 812 4230 468 866 DIOB 1455 888 3738 429 848 DJIB 1482 1025 2962 767 913 EASB 1122 1196 2664 944 1059 EVEB 627 453 1511 398 667 GAVB 1035 962 3770 0 894 GR3B 1744 4 3878 0 4 GREB 1781 1445 4264 678 1236 HBMB 1492 1268 3102 1080 981 HEMB 841 643 1847 247 540 JIUB 1450 1181 3166 743 1001 KETB 2202 1357 4932 644 1173 KIUB 1380 1122 3244 760 947 KOLB 1635 1248 3371 978 1065 KRBB 2022 1854 4140 814 1654 KRWB 1191 933 2834 815 804 LICB 1145 1016 2568 654 868 MAHB 536 225 524 82 298 MALB 1261 1050 2468 720 928 MANB 1491 1207 3144 535 1001 MATB 1898 1191 4545 321 1156 METB 2779 1871 4688 205 1806 MIAB 1720 1276 3470 663 1110 MSPB 1759 1368 4259 864 1204 NOXB 727 518 1358 242 501 PAUB 1422 1214 2979 994 1019 PDMB 1674 1212 4024 484 1065 REUB 1297 894 2852 336 901 REZB 3460 2048 3957 539 1641 RIQB 666 524 438 169 693 ROVB 4426 3291 5243 948 2997 SALB 1249 1041 2911 633 857 SANB 1530 1268 3805 384 1138 SPJB 6453 4016 3910 1781 3322 STJB 1911 1603 4291 939 1398 SYPB 4339 3726 4547 1085 3174 THUB 6320 3999 4409 1853 3613 TLSB 1908 1539 4057 1321 1298 YASB 1759 1371 3564 683 1185 YEMB 3507 12 5076 1110 2336 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 11.9 10.6 11.8 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 12.4 +- 1.1 mm TY = -16.7 +- 1.1 mm TZ = 5.6 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.8 +- 0.2 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 0.67 0.39 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr