****************************************************************************** dorisreport 13-Dec-2011 00:11:47 Message No 2748 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1661 = 11310 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1661 from 06-11-2011 to 12-11-2011 DORIS name (using day of start): 11310 Days of year: from 2011/310 to 2011/316 ============================================================== 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/ign11310wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11310wd10.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 1661 from 06-11-2011 to 12-11-2011 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.51 the following satellites were used in the combination 2011 310 cryosat2 envisat jason2 spot4 spot5 2011 311 cryosat2 envisat jason2 spot4 spot5 2011 312 cryosat2 envisat jason2 spot4 spot5 2011 313 cryosat2 envisat jason2 spot4 spot5 2011 314 cryosat2 envisat jason2 spot4 spot5 2011 315 cryosat2 envisat jason2 spot4 spot5 2011 316 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 -------------------------------------------------------- 06-11-2011 44620 207 44413 0.5 07-11-2011 46139 79 46060 0.2 08-11-2011 46338 101 46237 0.2 09-11-2011 41643 106 41537 0.3 10-11-2011 46298 135 46163 0.3 11-11-2011 46727 90 46637 0.2 12-11-2011 47593 146 47447 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 8463 8449 8492 4444 8387 8672 8698 ENVISAT 4799 7675 7657 7543 7516 6548 8097 JASON2 17776 16628 17374 16922 17041 18082 17331 SPOT4 4778 4822 4741 4931 4899 4704 4787 SPOT5 8597 8486 7973 7697 8320 8631 8534 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.469 0.463 0.454 0.448 0.470 0.468 0.473 ENVISAT 0.464 0.452 0.446 0.464 0.454 0.480 0.463 JASON2 0.405 0.411 0.411 0.416 0.423 0.412 0.414 SPOT4 0.416 0.459 0.443 0.461 0.449 0.442 0.437 SPOT5 0.433 0.419 0.401 0.409 0.418 0.433 0.416 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 426 494 427 423 407 404 471 AMVB 409 410 408 342 375 450 345 ARFB 307 250 314 275 304 254 311 ASEB 248 208 196 246 193 225 181 BADB 232 103 497 482 541 466 531 BEMB 1318 1402 1405 1432 1369 1348 1409 BETB 362 363 385 427 373 384 394 CHAB 589 526 599 583 603 602 596 CIDB 301 240 286 436 348 354 329 COBB 814 750 785 776 788 818 763 CRQB 286 255 286 228 230 292 268 DIOB 280 195 288 263 291 238 299 DJIB 305 364 353 362 333 331 312 EASB 329 344 409 380 361 381 327 EVEB 208 223 175 222 178 215 223 GAVB 259 279 209 219 240 234 278 GR3B 0 0 0 0 0 0 0 GREB 443 431 493 381 478 447 441 HBMB 443 406 479 517 441 473 432 JIUB 283 235 405 382 308 373 263 KETB 444 466 413 459 515 418 495 KIUB 466 352 219 227 435 459 439 KOLB 492 438 400 485 461 439 460 KRBB 556 653 560 679 613 585 539 KRWB 223 209 275 210 245 243 225 LICB 323 229 282 236 240 278 170 MAHB 27 0 0 0 46 53 0 MALB 350 353 432 309 311 336 325 MANB o 333 372 343 354 394 336 404 MATB o 338 351 315 337 343 300 373 METB 487 550 476 562 528 590 533 MIAB 408 464 338 386 418 379 458 MSPB 450 503 478 470 379 349 554 NOXB 388 467 361 382 383 301 522 PAUB 436 420 393 426 440 415 421 PDMB 333 384 404 312 371 377 337 REUB 397 301 282 322 341 360 323 REZB 475 547 586 499 590 480 549 RIQB 374 337 393 354 334 342 387 ROVB 1026 1014 924 1026 1070 983 1010 SALB 149 216 344 209 205 223 223 SANB o 395 408 287 291 321 425 322 SPJB 1211 1272 1306 1232 1236 1166 1238 STJB 513 524 561 497 548 525 487 SYPB 1145 1110 601 0 404 1152 1171 THUB 1175 1175 1250 1178 1083 1183 1095 TLSB 600 564 614 581 591 573 578 YASB 429 510 0 429 481 340 424 YEMB 503 477 460 503 477 511 471 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 4832 0 5287 0 3191 AMVB 1692 1297 3743 495 1095 ARFB 1412 943 2392 472 863 ASEB 1018 700 2092 274 703 BADB 1748 1340 3889 562 1123 BEMB 6495 4370 4590 1854 3956 BETB 1275 1169 2798 801 944 CHAB 2145 1688 5135 1217 1399 CIDB 1284 1146 2644 585 930 COBB 2701 2258 5585 1653 1822 CRQB 1982 814 4361 346 867 DIOB 1391 825 3557 324 826 DJIB 1418 986 2805 800 880 EASB 1166 1111 2550 890 1020 EVEB 592 469 1493 428 700 GAVB 838 954 3828 0 894 GR3B 1641 4 3927 0 2 GREB 1725 1433 4261 637 1154 HBMB 1613 1321 3105 1046 990 JIUB 1280 1165 3082 479 1029 KETB 2299 1296 4771 862 1191 KIUB 1299 1111 3067 783 971 KOLB 1616 1326 3433 956 1114 KRBB 1937 1963 4113 832 1664 KRWB 1416 835 2351 759 797 LICB 1276 911 2514 479 777 MAHB 661 59 1234 0 121 MALB 1357 971 2279 867 871 MANB 1549 1179 3112 629 986 MATB 2044 1189 4655 213 1103 METB 2578 1863 4753 354 1819 MIAB 1712 1260 3537 708 1107 MSPB 1909 1378 4187 836 1190 NOXB 1596 1244 3297 662 1086 PAUB 1336 1211 2972 949 1041 PDMB 1532 1137 3942 487 1082 REUB 1462 912 2911 655 904 REZB 3030 1929 3986 574 1672 RIQB 1162 975 1024 409 1277 ROVB 4483 3294 5360 1115 2939 SALB 1225 846 2490 642 770 SANB 1565 1208 3515 326 1095 SPJB 6002 3943 3839 1922 3281 STJB 1864 1511 4519 912 1388 SYPB 3245 2616 3186 951 2212 THUB 6003 3903 4644 1316 3496 TLSB 1703 1620 4027 1282 1325 YASB 1432 1154 3111 671 966 YEMB 3270 8 5244 1155 2379 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 14.2 12.0 10.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -0.9 +- 1.1 mm TY = -25.3 +- 0.9 mm TZ = -0.3 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.3 +- 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 0.54 0.42 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr