****************************************************************************** dorisreport 17-Apr-2012 07:01:27 Message No 2905 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1679 = 12071 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1679 from 11-03-2012 to 17-03-2012 DORIS name (using day of start): 12071 Days of year: from 2012/71 to 2012/77 ============================================================== 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/ign12071wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12071wd10.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 1679 from 11-03-2012 to 17-03-2012 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.73 the following satellites were used in the combination 2012 71 cryosat2 envisat jason2 spot4 spot5 2012 72 cryosat2 envisat jason2 spot4 spot5 2012 73 cryosat2 envisat jason2 spot4 spot5 2012 74 cryosat2 envisat jason2 spot4 spot5 2012 75 cryosat2 envisat jason2 spot4 spot5 2012 76 envisat jason2 spot4 spot5 2012 77 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 -------------------------------------------------------- 11-03-2012 42703 112 42591 0.3 12-03-2012 45494 88 45406 0.2 13-03-2012 49002 78 48924 0.2 14-03-2012 48045 100 47945 0.2 15-03-2012 43593 116 43477 0.3 16-03-2012 39128 51 39077 0.1 17-03-2012 47413 72 47341 0.2 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 8353 8642 9458 9257 5525 0 9120 ENVISAT 6955 7346 8094 7860 7038 8305 7864 JASON2 15518 16805 17423 17428 17250 17219 17059 SPOT4 4468 4867 5257 5055 5060 4949 5171 SPOT5 7297 7746 8692 8345 8604 8604 8127 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.432 0.417 0.428 0.420 0.437 0.000 0.439 ENVISAT 0.453 0.456 0.445 0.432 0.446 0.456 0.464 JASON2 0.419 0.419 0.411 0.419 0.419 0.399 0.422 SPOT4 0.456 0.438 0.441 0.438 0.436 0.434 0.436 SPOT5 0.405 0.414 0.407 0.406 0.409 0.404 0.406 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 484 427 414 427 429 496 433 AMVB 433 394 428 361 401 438 393 ARFB 315 393 355 292 283 344 374 ASEB 306 298 223 277 337 319 292 BADB 530 522 460 425 535 495 508 BEMB 0 375 1432 1383 1320 1452 1523 BETB 279 343 421 374 377 393 384 CADB 0 0 0 204 353 400 371 CHAB 613 597 575 593 596 527 604 CIDB 290 275 353 337 306 301 291 COBB 779 731 819 805 758 800 755 CRQB 350 330 279 314 272 267 287 DIOB 309 297 265 292 284 230 283 DJIB 342 326 320 365 260 365 290 EASB 376 421 355 317 362 339 396 EVEB o 212 197 206 238 215 185 206 GR3B 0 0 0 0 0 0 0 GREB 478 488 462 476 429 459 483 HBMB 466 440 518 423 449 473 412 HEMB 212 404 387 283 354 205 344 JIUB 359 367 431 404 267 370 315 KETB 383 421 335 418 472 371 391 KIUB 374 393 488 427 392 400 416 KOLB 452 397 479 521 405 462 431 KRBB 578 545 652 595 508 597 554 KRWB 235 382 290 373 369 419 382 LICB 222 351 257 327 331 380 366 MAHB 180 304 336 298 222 320 255 MALB 310 380 257 320 325 362 378 MANB o 390 296 426 322 446 341 352 MATB o 378 333 359 358 335 302 354 METB 496 503 545 502 558 515 472 MIAB 435 386 349 431 340 380 399 MSPB 483 516 471 447 429 482 504 NOXB 238 55 321 365 416 453 418 PAUB 430 418 478 465 415 439 413 PDMB o 347 418 343 336 452 370 357 REUB 259 240 254 307 317 324 230 RIMB 0 179 314 319 368 296 286 RIQB 149 213 186 147 165 129 229 ROVB 0 452 1053 244 1008 729 0 SALB 282 395 336 297 372 344 392 SANB o 478 305 357 388 319 415 283 SPJB 1273 1286 1259 1260 1277 1235 1291 STJB o 493 581 552 529 537 483 539 SYPB 1140 1051 1093 1093 1122 1107 1088 THUB 1296 1306 1311 1374 1315 1316 1288 TLSB 577 588 568 568 596 595 540 YASB 491 497 431 447 418 445 502 YEMB 425 473 485 497 500 462 471 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 5096 0 5351 0 3230 AMVB 1782 1250 3594 675 1092 ARFB 1389 1071 2740 547 890 ASEB 1274 967 2143 452 815 BADB 2238 1668 4677 592 1412 BEMB 5201 3367 3747 1452 3086 BETB 1339 1123 2630 812 904 CADB 1375 1018 2912 653 849 CHAB 2306 1692 5135 1263 1375 CIDB 1370 1106 2623 472 900 COBB 3051 2202 5581 1696 1765 CRQB 2026 895 4144 455 911 DIOB 1446 833 3467 375 856 DJIB 1560 1017 2783 700 877 EASB 1135 1110 2525 905 1089 EVEB 620 487 1525 427 697 GR3B 1642 4 3987 0 5 GREB 1835 1461 4233 730 1236 HBMB 1595 1269 3113 1113 960 HEMB 1580 1046 2781 373 939 JIUB 1463 1140 3096 776 1010 KETB 2328 1306 4693 495 1191 KIUB 1429 1246 3662 899 1106 KOLB 1815 1291 3479 1001 1034 KRBB 1972 1873 4098 843 1567 KRWB 1542 1079 2277 856 894 LICB 1352 992 2534 631 859 MAHB 1160 957 2245 474 824 MALB 1353 1007 2454 724 899 MANB 1667 1207 3026 578 971 MATB 2155 1230 4524 239 1110 METB 2681 1865 4837 211 1758 MIAB 1696 1306 3489 634 1078 MSPB 1970 1403 4210 877 1186 NOXB 1251 1046 2810 466 891 PAUB 1423 1218 2849 1018 988 PDMB 1607 1197 3944 449 1120 REUB 1386 920 2876 354 862 RIMB 1240 1055 2579 277 906 RIQB 565 436 488 230 658 ROVB 4670 2743 5198 830 2456 SALB 1564 1081 2456 668 959 SANB 1678 1304 3660 346 1080 SPJB 6590 4028 3945 1801 3347 STJB 2009 1546 4392 925 1408 SYPB 4489 3704 4247 1107 3192 THUB 6507 4031 4784 1859 3641 TLSB 1727 1560 4247 1299 1335 YASB 1895 1385 3570 855 1184 YEMB 3868 8 5243 1101 2331 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 11.1 11.5 12.8 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -1.0 +- 1.1 mm TY = -19.3 +- 1.0 mm TZ = -7.5 +- 1.0 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 0.48 0.52 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr