****************************************************************************** dorisreport 17-Feb-2012 18:46:15 Message No 2833 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1670 = 12008 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1670 from 08-01-2012 to 14-01-2012 DORIS name (using day of start): 12008 Days of year: from 2012/8 to 2012/14 ============================================================== 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/ign12008wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12008wd10.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 1670 from 08-01-2012 to 14-01-2012 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.81 the following satellites were used in the combination 2012 8 cryosat2 envisat jason2 spot4 spot5 2012 9 cryosat2 envisat jason2 spot4 spot5 2012 10 cryosat2 envisat jason2 spot4 spot5 2012 11 cryosat2 envisat jason2 spot4 spot5 2012 12 cryosat2 envisat jason2 spot4 spot5 2012 13 envisat spot4 spot5 2012 14 envisat 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 -------------------------------------------------------- 08-01-2012 48216 134 48082 0.3 09-01-2012 48819 111 48708 0.2 10-01-2012 47376 92 47284 0.2 11-01-2012 48774 83 48691 0.2 12-01-2012 48234 131 48103 0.3 13-01-2012 20463 34 20429 0.2 14-01-2012 21930 30 21900 0.1 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 8746 8609 8419 8713 8627 0 0 ENVISAT 8266 8224 8055 8414 8102 6881 8106 JASON2 17450 18133 17434 17517 17663 0 0 SPOT4 4771 5062 4987 5264 5074 4897 5047 SPOT5 8849 8680 8389 8783 8637 8651 8747 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.457 0.456 0.459 0.440 0.480 0.000 0.000 ENVISAT 0.451 0.438 0.451 0.456 0.452 0.454 0.449 JASON2 0.412 0.415 0.400 0.398 0.412 0.000 0.000 SPOT4 0.442 0.446 0.435 0.439 0.463 0.415 0.433 SPOT5 0.406 0.407 0.408 0.400 0.413 0.397 0.404 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 451 471 424 427 429 432 496 AMVB 349 415 412 383 411 396 430 ARFB 383 275 354 382 308 350 305 ASEB 269 321 276 261 259 309 291 BADB 540 521 547 484 560 552 516 BEMB 1378 1530 1446 1369 1268 1361 1477 BETB 419 378 372 411 369 419 402 CHAB 587 600 606 609 591 574 615 CIDB 384 312 354 418 369 400 345 COBB 764 716 811 805 780 807 750 CRQB 294 0 281 312 233 210 362 DIOB 269 323 247 284 331 298 327 DJIB 357 300 354 377 361 360 360 EASB 338 454 437 324 362 329 376 EVEB o 233 202 210 243 217 182 199 GAVB 251 279 205 244 237 247 277 GR3B 0 0 0 0 0 0 0 GREB 426 486 426 496 454 440 473 HBMB 445 440 470 473 425 432 442 HEMB 0 172 216 341 153 143 96 JIUB 287 359 452 428 335 333 363 KETB 458 428 423 395 487 458 352 KIUB 450 417 469 450 447 472 385 KOLB 489 374 455 495 448 429 420 KRBB 509 551 569 606 554 467 547 KRWB 259 345 340 232 261 328 294 LICB 306 366 325 317 363 304 331 MAHB 266 137 0 0 0 0 0 MALB 338 364 324 308 363 304 279 MANB o 407 356 338 358 413 364 325 MATB o 344 386 318 383 296 330 337 METB 507 464 524 534 536 507 516 MIAB 456 437 337 412 435 416 450 MSPB 516 419 492 507 422 502 463 NOXB 478 432 263 387 375 439 424 PAUB 434 373 463 450 452 452 401 PDMB o 362 382 340 334 445 364 317 REUB 339 250 267 272 335 329 272 REZB 499 540 560 623 615 537 484 RIQB 162 150 226 170 177 184 135 ROVB 1033 1011 994 1046 944 997 1064 SALB 250 411 378 276 249 305 370 SANB o 353 242 260 347 383 329 503 SPJB 1193 1302 1260 1324 1281 1280 1252 STJB o 511 574 551 551 559 511 544 SYPB 1131 1109 1055 1139 1134 1116 1102 THUB 1281 1259 1352 1320 1158 1252 1303 TLSB 600 594 582 571 586 600 573 YASB 349 433 0 448 421 184 481 YEMB 489 459 464 0 547 492 462 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 4761 0 5512 0 3247 AMVB 1694 1273 3645 567 1095 ARFB 1388 1072 2858 516 966 ASEB 957 849 2314 498 806 BADB 2030 1664 4400 832 1416 BEMB 6494 4380 4379 1885 3970 BETB 1286 1173 2710 845 989 CHAB 2132 1685 5037 1257 1412 CIDB 1306 1212 2723 729 963 COBB 2713 2205 5324 1668 1805 CRQB 1970 897 4338 421 832 DIOB 1517 893 3675 420 856 DJIB 1469 1032 2767 736 922 EASB 1185 1130 2623 912 1067 EVEB 581 480 1479 426 727 GAVB 1033 973 3840 0 879 GR3B 1700 5 3964 0 1 GREB 1798 1404 4331 674 1241 HBMB 1559 1284 3194 1063 952 HEMB 677 498 1271 235 463 JIUB 1363 1227 2974 659 985 KETB 2156 1288 4731 722 1187 KIUB 1553 1285 3645 923 1157 KOLB 1659 1312 3309 970 1034 KRBB 2048 1889 4220 589 1561 KRWB 1087 973 2526 845 838 LICB 1280 1063 2645 619 879 MAHB 548 446 1169 176 433 MALB 1283 1002 2410 740 871 MANB 1560 1225 3039 539 997 MATB 1952 1205 4561 281 1149 METB 2800 1893 4779 149 1787 MIAB 1724 1293 3528 668 1115 MSPB 1815 1380 4235 874 1222 NOXB 1545 1278 3209 603 1131 PAUB 1370 1240 2828 1003 1010 PDMB 1663 1198 3950 434 1076 REUB 1403 928 2861 412 902 REZB 3346 2009 3959 558 1730 RIQB 625 470 535 176 649 ROVB 4344 3365 5231 1101 2903 SALB 1354 1043 2755 628 926 SANB 1465 1217 3559 350 1030 SPJB 6545 3981 3978 1933 3300 STJB 1907 1547 4240 996 1397 SYPB 4446 3740 4536 1134 3210 THUB 6442 4000 4565 1674 3641 TLSB 1893 1614 4351 1308 1328 YASB 1346 1107 2947 452 930 YEMB 3560 7 5105 1141 2388 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 9.5 12.5 12.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 0.2 +- 1.1 mm TY = -22.6 +- 0.9 mm TZ = -8.0 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.9 +- 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 0.44 0.51 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr