****************************************************************************** dorisreport 09-Mar-2012 01:24:31 Message No 2856 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1673 = 12029 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1673 from 29-01-2012 to 04-02-2012 DORIS name (using day of start): 12029 Days of year: from 2012/29 to 2012/35 ============================================================== 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/ign12029wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12029wd10.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 1673 from 29-01-2012 to 04-02-2012 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.69 the following satellites were used in the combination 2012 29 cryosat2 envisat jason2 spot4 spot5 2012 30 cryosat2 envisat jason2 spot4 spot5 2012 31 cryosat2 envisat jason2 spot4 spot5 2012 32 cryosat2 envisat jason2 spot4 spot5 2012 33 cryosat2 envisat jason2 spot4 spot5 2012 34 cryosat2 envisat jason2 spot4 spot5 2012 35 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 -------------------------------------------------------- 29-01-2012 46166 110 46056 0.2 30-01-2012 46559 82 46477 0.2 31-01-2012 46820 104 46716 0.2 01-02-2012 46807 83 46724 0.2 02-02-2012 47050 7967 39083 16.9 03-02-2012 46067 61 46006 0.1 04-02-2012 43731 43 43688 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 8751 9205 9109 9123 8850 9412 9225 ENVISAT 7540 7712 7923 7364 0 6470 6937 JASON2 16916 16657 16827 16827 17181 16815 16760 SPOT4 4609 4899 4544 4912 4752 4690 5013 SPOT5 8240 8004 8313 8498 8300 8619 5753 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.462 0.444 0.458 0.440 0.431 0.433 0.447 ENVISAT 0.450 0.454 0.457 0.453 0.000 0.435 0.444 JASON2 0.406 0.396 0.399 0.399 0.393 0.394 0.406 SPOT4 0.459 0.450 0.454 0.430 0.432 0.433 0.435 SPOT5 0.418 0.405 0.412 0.413 0.395 0.393 0.418 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 481 446 427 416 428 456 467 AMVB 359 424 346 381 430 264 351 ARFB 332 348 302 309 318 270 273 ASEB 223 321 294 237 351 308 348 BADB 532 534 461 184 0 0 0 BEMB 1361 1502 1419 1398 1428 1267 1372 BETB 291 406 318 437 407 383 391 CHAB 564 613 579 565 612 603 588 CIDB 335 346 291 425 379 284 388 COBB 791 783 740 829 812 702 768 CRQB 292 281 299 296 238 241 275 DIOB 222 312 263 280 288 305 290 DJIB 390 313 306 372 344 388 315 EASB 358 346 414 376 333 349 328 EVEB o 200 209 211 194 225 183 139 GAVB 220 277 241 213 265 250 260 GR3B 0 0 0 0 0 0 0 GREB 430 497 391 483 477 329 496 HBMB 399 465 419 469 420 419 440 HEMB 350 207 247 0 0 322 222 JIUB 318 414 400 447 392 195 410 KETB 513 383 420 395 380 448 292 KIUB 470 441 420 466 442 408 379 KOLB 417 422 371 502 477 405 422 KRBB 560 488 639 644 572 433 462 KRWB 282 223 249 303 298 194 210 LICB 227 347 303 314 355 330 383 MAHB 293 324 174 328 298 185 215 MALB 0 173 339 337 311 281 82 MANB o 388 349 347 312 357 360 384 METB 553 499 503 549 536 498 524 MIAB 396 412 434 370 386 336 390 MSPB 505 515 496 444 488 499 474 NOXB 413 396 312 294 374 443 400 PAUB 433 193 0 0 0 255 443 PDMB o 420 317 417 314 385 453 357 REUB 298 244 266 302 348 236 223 REZB 580 511 545 609 498 640 502 RIQB 215 285 194 181 141 161 160 ROVB 0 0 991 1120 1005 906 900 SALB 285 327 393 316 342 376 353 SANB o 255 331 375 371 330 250 367 SPJB 1367 1285 1257 1306 1212 1207 1217 STJB o 542 510 542 551 548 523 507 SYPB 1117 1147 1072 1078 1132 999 968 THUB 1207 1275 1181 1362 1308 1135 1253 TLSB 591 563 581 532 580 589 575 YASB 391 431 391 432 434 369 428 YEMB 488 450 492 488 514 489 433 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 5253 0 5377 0 3249 AMVB 1746 1096 3838 518 1086 ARFB 1283 970 2849 545 893 ASEB 1216 943 2321 462 856 BADB 984 805 1941 314 681 BEMB 6639 4191 4509 1985 4059 BETB 1300 1186 2716 854 958 CHAB 2212 1665 5010 1221 1402 CIDB 1347 1057 2739 735 948 COBB 2836 2173 5353 1683 1781 CRQB 2105 790 4382 433 833 DIOB 1604 874 3660 399 780 DJIB 1551 999 2841 820 906 EASB 1195 1036 2610 953 1087 EVEB 575 396 1473 433 678 GAVB 1029 941 3959 0 891 GR3B 1708 5 3734 0 3 GREB 1808 1354 4393 659 1239 HBMB 1631 1176 3115 1096 967 HEMB 1038 684 1698 224 564 JIUB 1317 1208 3010 688 989 KETB 2391 1140 4855 677 1187 KIUB 1579 1184 3648 921 1134 KOLB 1787 1273 3366 923 1045 KRBB 2056 1699 4240 800 1611 KRWB 1243 902 2746 842 844 LICB 1327 1037 2634 566 885 MAHB 1146 875 2328 359 898 MALB 1346 754 2274 688 824 MANB 1565 1133 3007 491 983 METB 2954 1922 4776 210 1793 MIAB 1922 1111 3656 647 1113 MSPB 2042 1405 4115 925 1228 NOXB 1659 1224 3231 580 1106 PAUB 1460 1013 2915 783 807 PDMB 1528 1242 4026 491 1126 REUB 1463 818 2889 427 875 REZB 3412 2064 3954 550 1694 RIQB 689 456 550 246 735 ROVB 4829 2833 5278 988 2669 SALB 1438 1084 2863 700 937 SANB 1556 1046 3748 306 1078 SPJB 6550 3924 3822 1895 3360 STJB 1817 1533 4636 948 1394 SYPB 4145 3456 4560 1162 3189 THUB 6443 3817 4576 1628 3627 TLSB 1911 1547 3997 1311 1304 YASB 1636 1281 3492 646 1173 YEMB 3900 10 5036 1121 2380 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 14.3 11.5 15.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -2.0 +- 1.0 mm TY = -13.8 +- 1.0 mm TZ = -59.7 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.1 +- 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 0.38 0.41 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr