****************************************************************************** dorisreport 27-Oct-2011 03:14:35 Message No 2698 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1654 = 11261 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1654 from 18-09-2011 to 24-09-2011 DORIS name (using day of start): 11261 Days of year: from 2011/261 to 2011/267 ============================================================== 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/ign11261wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11261wd10.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) 4) Global Statistics ==================== GPS week number 1654 from 18-09-2011 to 24-09-2011 Total number of stations = 48 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.48 the following satellites were used in the combination 2011 261 cryosat2 envisat jason2 spot4 spot5 2011 262 cryosat2 envisat jason2 spot4 spot5 2011 263 cryosat2 envisat jason2 spot4 spot5 2011 264 cryosat2 envisat jason2 spot4 spot5 2011 265 cryosat2 envisat jason2 spot4 spot5 2011 266 cryosat2 jason2 spot4 spot5 2011 267 cryosat2 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 -------------------------------------------------------- 18-09-2011 46352 105 46247 0.2 19-09-2011 46960 126 46834 0.3 20-09-2011 44268 117 44151 0.3 21-09-2011 46212 118 46094 0.3 22-09-2011 41167 103 41064 0.3 23-09-2011 37105 169 36936 0.5 24-09-2011 37980 122 37858 0.3 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 8584 8652 8964 8530 8581 8318 8560 ENVISAT 7799 7877 7079 7733 3092 0 0 JASON2 16724 16996 16905 16661 16745 15954 16682 SPOT4 4948 4770 5108 4742 4770 4801 4593 SPOT5 8192 8539 6095 8428 7876 7863 8023 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.454 0.447 0.434 0.441 0.444 0.449 0.439 ENVISAT 0.446 0.449 0.464 0.459 0.454 0.000 0.000 JASON2 0.408 0.404 0.415 0.409 0.417 0.408 0.411 SPOT4 0.471 0.426 0.435 0.440 0.448 0.431 0.429 SPOT5 0.396 0.410 0.447 0.414 0.402 0.407 0.405 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 424 422 428 451 447 425 414 AMVB 402 379 413 355 351 469 367 ARFB 401 344 300 389 303 305 343 ASEB 301 281 227 210 279 221 244 BADB 474 476 521 556 412 494 468 BEMB 1409 1363 1096 1424 1172 1443 1464 BETB 321 248 333 293 228 273 326 CHAB 585 590 561 590 456 592 590 CIDB 397 370 399 354 240 339 349 COBB 802 747 819 765 625 809 803 CRQB 219 212 271 281 203 321 266 DIOB 284 290 262 263 176 232 312 DJIB 328 324 297 332 176 311 287 EASB 380 327 371 318 282 422 327 EVEB 210 218 213 221 163 197 238 GAVB 214 220 212 242 136 211 215 GR3B 0 0 0 0 0 0 0 GREB 369 467 381 394 361 427 449 HBMB 522 424 465 429 317 512 459 JIUB 421 299 408 287 305 445 377 KETB 433 515 477 477 307 333 418 KIUB 433 424 426 397 336 472 435 KOLB 448 475 417 446 261 446 500 KRBB 667 599 607 491 392 653 595 KRWB 382 406 342 394 313 347 283 LICB 292 228 243 140 220 268 194 MALB 0 161 387 26 0 0 0 MATB o 346 379 327 354 207 319 370 METB 531 490 525 519 249 499 504 MIAB 411 397 421 446 318 348 426 MSPB 525 387 275 544 344 523 510 NOXB 0 402 290 485 297 280 340 PAUB 366 337 320 297 227 411 388 PDMB 333 347 365 373 325 315 351 REUB 322 297 358 318 173 247 308 REZB 429 547 511 521 387 538 592 RIMB 299 246 254 269 144 320 280 RIQB 324 314 287 310 342 369 336 ROVB 983 1093 1023 1012 0 0 0 SALB 361 274 241 229 326 337 172 SANB o 350 411 380 354 225 320 398 SPJB 1314 1343 1141 1275 899 1267 1249 STJB 483 526 540 512 451 550 545 SYPB 1086 1144 1188 1148 895 1110 1119 THUB 1141 1203 1331 1175 1036 1337 1333 TLSB 596 584 482 594 396 561 596 YASB 431 454 408 457 388 394 445 YEMB 451 469 439 489 445 445 448 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 4792 0 5444 0 3154 AMVB 1738 1217 3698 541 1112 ARFB 1504 1038 2790 624 900 ASEB 1197 746 1994 326 848 BADB 2131 1564 4472 731 1376 BEMB 6581 3981 4391 1829 4016 BETB 1347 888 2279 752 836 CHAB 2218 1487 5043 1238 1396 CIDB 1303 1062 2497 732 932 COBB 2846 2119 5692 1718 1743 CRQB 2089 730 4303 352 811 DIOB 1537 693 3589 507 749 DJIB 1493 865 2473 646 881 EASB 1254 908 2521 809 1044 EVEB 605 454 1477 441 718 GAVB 1092 778 3791 0 823 GR3B 1628 5 3901 0 1 GREB 1786 1350 4344 630 1166 HBMB 1600 1163 3189 1088 1054 JIUB 1408 1097 3015 720 1098 KETB 2233 1181 4750 723 1155 KIUB 1477 1155 3462 918 1181 KOLB 1701 1177 3362 974 996 KRBB 2110 1703 4079 829 1708 KRWB 1496 1004 2655 928 903 LICB 1230 724 1976 458 713 MALB 593 387 1037 324 326 MATB 1975 1044 4552 253 1121 METB 2793 1553 4711 208 1792 MIAB 1750 1189 3576 791 1004 MSPB 1699 1221 4361 841 1192 NOXB 1575 1039 3383 619 846 PAUB 1325 902 2482 916 883 PDMB 1680 1045 4070 425 1090 REUB 1247 890 2941 423 879 REZB 3413 1710 4197 487 1800 RIMB 828 769 2437 307 976 RIQB 1262 778 1077 423 1239 ROVB 2340 1729 2955 819 1703 SALB 1511 738 2437 649 906 SANB 1696 1230 3733 276 1077 SPJB 6537 3504 4183 1944 3358 STJB 2028 1388 4416 930 1456 SYPB 4565 3548 4532 1247 3152 THUB 6520 3686 4727 1533 3678 TLSB 1858 1363 3828 1307 1285 YASB 1788 1224 3695 879 1053 YEMB 3507 7 5027 1068 2396 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 8.8 12.2 9.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -0.1 +- 1.1 mm TY = -19.8 +- 1.1 mm TZ = 8.7 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.4 +- 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 0.33 0.45 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr