****************************************************************************** dorisreport 01-Oct-2011 07:04:40 Message No 2666 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1650 = 11233 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1650 from 21-08-2011 to 27-08-2011 DORIS name (using day of start): 11233 Days of year: from 2011/233 to 2011/239 ============================================================== 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/ign11233wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11233wd10.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 1650 from 21-08-2011 to 27-08-2011 Total number of stations = 45 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.40 the following satellites were used in the combination 2011 233 cryosat2 envisat jason2 spot4 spot5 2011 234 cryosat2 envisat jason2 spot4 spot5 2011 235 cryosat2 envisat jason2 spot4 spot5 2011 236 cryosat2 envisat jason2 spot4 spot5 2011 237 cryosat2 envisat jason2 spot4 spot5 2011 238 cryosat2 envisat jason2 spot4 spot5 2011 239 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 -------------------------------------------------------- 21-08-2011 43565 51 43514 0.1 22-08-2011 44310 141 44169 0.3 23-08-2011 43768 88 43680 0.2 24-08-2011 44189 100 44089 0.2 25-08-2011 43190 87 43103 0.2 26-08-2011 44097 67 44030 0.2 27-08-2011 45000 72 44928 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 8101 8230 8029 8273 7929 8192 8039 ENVISAT 7550 7548 7312 7567 7697 7562 7720 JASON2 15453 16081 16131 15768 15284 16134 16645 SPOT4 4528 4632 4516 4641 4405 4352 4774 SPOT5 7882 7678 7692 7840 7788 7790 7750 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.459 0.451 0.452 0.440 0.480 0.444 0.456 ENVISAT 0.449 0.455 0.451 0.462 0.446 0.448 0.462 JASON2 0.403 0.419 0.405 0.402 0.408 0.410 0.403 SPOT4 0.457 0.439 0.436 0.441 0.431 0.452 0.461 SPOT5 0.406 0.403 0.412 0.404 0.409 0.396 0.399 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 491 437 423 421 429 466 463 AMVB 424 403 390 418 390 356 431 ARFB 342 360 389 377 361 382 392 ASEB 237 284 291 254 337 271 332 BADB 512 505 472 465 542 527 511 BEMB 1337 1522 1443 1478 1338 1351 1491 BETB 411 342 309 207 317 310 401 CHAB 576 607 591 601 612 581 596 CIDB 308 346 359 424 371 265 369 COBB 775 780 742 845 809 723 837 CRQB 305 265 204 292 246 305 308 DIOB 224 298 316 210 269 269 289 DJIB 355 289 317 380 373 360 337 EASB 366 356 423 370 338 376 401 EVEB 196 203 218 202 232 198 191 GAVB 227 255 236 209 254 251 242 GR3B 0 0 0 0 0 0 0 GREB 391 463 408 476 304 410 476 HBMB 472 470 470 489 424 415 494 JIUB 293 402 330 434 282 293 413 KETB 467 378 458 426 476 502 379 KIUB 440 392 406 456 383 426 449 KOLB 383 464 401 480 454 369 377 KRBB 670 520 619 652 551 577 533 KRWB 413 397 409 360 427 400 316 LICB 360 377 279 303 367 220 344 MAHB 246 317 238 321 271 220 265 MATB o 312 333 397 347 376 377 326 MIAB 383 376 358 365 440 436 345 MSPB 510 491 458 431 456 524 478 PAUB 0 0 0 0 191 331 385 PDMB 425 334 360 328 337 461 314 REUB 314 275 286 309 368 277 293 REZB 604 550 642 613 464 602 464 RIMB 0 0 0 0 57 124 99 RIQB 397 475 397 466 515 473 492 ROVB 1044 963 1031 991 964 1031 960 SALB 406 335 502 339 354 431 344 SANB o 377 321 349 345 436 341 319 SPJB 1343 1272 1290 1279 1267 1358 1307 STJB 528 514 545 542 522 495 494 SYPB 1114 1163 1051 1051 1190 1120 1086 THUB 1237 1311 1141 1398 1221 1213 1294 TLSB 593 596 585 556 573 531 564 YASB 465 477 470 427 247 0 203 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 4828 0 5562 0 3248 AMVB 1689 1304 3851 551 1108 ARFB 1475 1085 2962 702 961 ASEB 1189 976 2317 352 866 BADB 2121 1680 4531 728 1404 BEMB 6530 4378 4429 2029 4065 BETB 1231 1039 2620 814 839 CHAB 2138 1684 5007 1236 1399 CIDB 1359 1164 2733 655 921 COBB 2748 2241 5541 1701 1764 CRQB 1953 832 4374 358 875 DIOB 1459 875 3846 324 827 DJIB 1523 1051 2889 777 896 EASB 1187 1165 2633 907 1065 EVEB 608 462 1564 421 692 GAVB 1033 935 3340 0 896 GR3B 1453 5 4046 0 3 GREB 1733 1452 4308 585 1234 HBMB 1568 1342 3145 1108 951 JIUB 1352 1245 2750 620 1018 KETB 2233 1304 4516 750 1189 KIUB 1464 1263 3665 927 1110 KOLB 1655 1196 3376 867 1009 KRBB 1874 1907 4028 899 1629 KRWB 1445 1122 2901 942 998 LICB 1356 1001 2651 540 924 MAHB 1183 969 2478 398 900 MATB 1999 1181 4604 291 1123 MIAB 1709 1214 3449 712 1099 MSPB 1835 1418 4201 836 1237 PAUB 1425 852 2950 675 663 PDMB 1576 1200 4040 443 1114 REUB 1422 943 3021 472 848 REZB 3417 2047 3953 555 1780 RIMB 0 0 535 0 409 RIQB 1400 1293 1487 632 1441 ROVB 4463 3399 5246 930 2937 SALB 1402 1118 2881 730 1008 SANB 1682 1313 3740 204 1148 SPJB 6324 4042 4180 2006 3356 STJB 1898 1574 4459 965 1403 SYPB 4626 3717 4615 1118 3197 THUB 6358 4044 4572 1477 3616 TLSB 1833 1605 4419 1306 1303 YASB 1366 979 2877 644 791 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 7.6 11.3 9.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -10.1 +- 1.5 mm TY = -2.3 +- 1.5 mm TZ = 5.0 +- 1.6 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.3 +- 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 0.29 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr