****************************************************************************** dorisreport 29-Oct-2011 06:39:09 Message No 2703 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1655 = 11268 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1655 from 25-09-2011 to 01-10-2011 DORIS name (using day of start): 11268 Days of year: from 2011/268 to 2011/274 ============================================================== 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/ign11268wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11268wd10.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 1655 from 25-09-2011 to 01-10-2011 Total number of stations = 46 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.55 the following satellites were used in the combination 2011 268 cryosat2 jason2 spot4 spot5 2011 269 cryosat2 jason2 spot4 spot5 2011 270 cryosat2 jason2 spot4 spot5 2011 271 cryosat2 jason2 spot4 spot5 2011 272 cryosat2 jason2 spot4 spot5 2011 273 cryosat2 envisat jason2 spot4 spot5 2011 274 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 -------------------------------------------------------- 25-09-2011 37258 121 37137 0.3 26-09-2011 37891 82 37809 0.2 27-09-2011 37729 65 37664 0.2 28-09-2011 37857 77 37780 0.2 29-09-2011 34912 78 34834 0.2 30-09-2011 42676 74 42602 0.2 01-10-2011 43368 111 43257 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 8314 8576 8260 8521 5226 8529 8029 ENVISAT 0 0 0 0 0 5981 7165 JASON2 16289 16490 16606 16440 16652 15706 15724 SPOT4 4633 4542 4822 4865 4817 4501 4418 SPOT5 7901 8201 7976 7954 8139 7885 7921 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.456 0.441 0.454 0.427 0.465 0.443 0.443 ENVISAT 0.000 0.000 0.000 0.000 0.000 0.449 0.463 JASON2 0.412 0.410 0.391 0.413 0.401 0.402 0.406 SPOT4 0.426 0.438 0.433 0.445 0.429 0.425 0.427 SPOT5 0.424 0.412 0.388 0.390 0.404 0.408 0.403 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 429 419 478 431 429 427 432 AMVB 454 404 408 352 387 461 420 ARFB 279 320 308 389 317 261 260 ASEB 256 328 301 264 225 214 258 BADB 506 480 477 553 397 469 560 BEMB 1325 1331 1495 1429 1376 1406 1388 BETB 291 338 274 358 386 314 377 CHAB 603 560 616 608 584 600 579 CIDB 367 383 323 352 401 380 412 COBB 775 798 769 791 810 422 0 CRQB 264 277 294 218 303 293 293 DIOB 259 296 281 261 285 303 262 DJIB 314 299 333 371 275 299 309 EASB 346 308 370 439 332 382 375 EVEB 219 182 208 221 233 226 186 GAVB 247 251 197 198 217 268 208 GR3B 0 0 0 0 0 0 0 GREB 443 411 448 435 431 489 427 HBMB 436 442 440 482 514 408 385 JIUB 397 355 337 420 368 339 308 KETB 429 464 407 423 395 360 491 KIUB 401 429 381 437 431 428 418 KOLB 404 444 414 406 499 487 442 KRBB 518 577 493 587 580 523 484 KRWB 323 252 393 219 323 259 234 LICB 233 317 330 267 227 221 210 MATB o 295 358 395 332 343 335 341 METB 531 502 479 510 502 524 529 MIAB 362 430 444 324 382 372 387 MSPB 443 516 443 519 481 387 484 NOXB 304 394 442 300 334 352 411 PAUB 318 356 409 426 431 409 408 PDMB 435 343 312 346 298 369 444 REUB 325 304 254 252 296 331 322 REZB 514 477 500 601 515 497 614 RIMB 335 280 279 319 333 279 338 RIQB 422 457 349 442 290 413 426 SALB 328 285 316 314 211 242 242 SANB o 364 366 481 233 331 329 284 SPJB 1283 1255 1289 1230 1218 1274 1312 STJB 570 546 545 582 483 466 490 SYPB 1145 1105 1107 1075 1105 1193 1112 THUB 1290 1283 1324 1333 1310 1285 1292 TLSB 551 593 582 593 586 582 587 YASB 424 347 472 429 384 480 386 YEMB 389 451 443 465 488 507 452 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 4795 0 5392 0 3172 AMVB 1738 1307 3807 658 1094 ARFB 1386 953 2419 479 938 ASEB 1274 793 1913 473 773 BADB 2170 1580 4578 710 1396 BEMB 6426 4333 4462 1913 4014 BETB 1342 1047 2396 776 927 CHAB 2136 1672 5003 1209 1421 CIDB 1333 1070 2601 795 991 COBB 2662 2123 5333 1539 1812 CRQB 1910 821 4383 413 850 DIOB 1440 877 3583 397 784 DJIB 1507 984 2589 652 864 EASB 1120 1216 2514 891 969 EVEB 587 462 1510 436 714 GAVB 1064 871 3831 0 823 GR3B 1670 11 3999 0 2 GREB 1807 1457 4102 744 1215 HBMB 1544 1249 3211 995 1020 JIUB 1337 1135 2984 780 1027 KETB 2190 1335 4844 620 1159 KIUB 1501 1214 3505 901 1183 KOLB 1668 1193 3455 969 1080 KRBB 2037 1873 4126 667 1471 KRWB 1430 1000 2524 884 780 LICB 1370 853 2058 532 804 MATB 2018 1197 4461 265 1114 METB 2744 1854 4605 220 1792 MIAB 1694 1231 3503 592 1103 MSPB 1826 1332 4162 919 1171 NOXB 1496 1126 3277 528 1059 PAUB 1443 1190 2666 934 982 PDMB 1551 1225 3965 486 1104 REUB 1260 895 2897 395 953 REZB 3489 1971 4018 510 1725 RIMB 770 1167 2567 333 910 RIQB 1367 938 1434 560 1442 SALB 1499 1050 2397 578 790 SANB 1623 1148 3408 321 1095 SPJB 6551 3984 4031 1825 3369 STJB 1914 1515 4458 1013 1374 SYPB 4439 3663 4523 1309 3169 THUB 6534 4030 4533 1824 3627 TLSB 1820 1595 3818 1297 1336 YASB 1730 1273 3695 680 1131 YEMB 3561 3 5092 1081 2403 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 8.0 11.2 9.0 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -2.1 +- 1.1 mm TY = -10.2 +- 1.2 mm TZ = 0.7 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.5 +- 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 0.34 0.57 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr