****************************************************************************** dorisreport 12-Jan-2012 00:00:57 Message No 2788 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1665 = 11338 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1665 from 04-12-2011 to 10-12-2011 DORIS name (using day of start): 11338 Days of year: from 2011/338 to 2011/344 ============================================================== 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/ign11338wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11338wd10.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 1665 from 04-12-2011 to 10-12-2011 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.13 the following satellites were used in the combination 2011 338 cryosat2 envisat jason2 spot4 spot5 2011 339 cryosat2 envisat jason2 spot4 spot5 2011 340 cryosat2 envisat jason2 spot4 spot5 2011 341 cryosat2 envisat jason2 spot4 spot5 2011 342 cryosat2 envisat jason2 spot4 spot5 2011 343 cryosat2 envisat jason2 spot4 spot5 2011 344 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 -------------------------------------------------------- 04-12-2011 47232 54 47178 0.1 05-12-2011 47366 153 47213 0.3 06-12-2011 47954 110 47844 0.2 07-12-2011 48102 102 48000 0.2 08-12-2011 47114 61 47053 0.1 09-12-2011 47404 74 47330 0.2 10-12-2011 46637 96 46541 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 8519 8577 8728 8783 8903 8512 8364 ENVISAT 8016 7927 8080 8058 7187 8028 7593 JASON2 17191 17337 17664 17598 17380 17614 17611 SPOT4 4976 5108 4856 4866 4808 4963 4919 SPOT5 8476 8264 8516 8695 8775 8213 8054 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.449 0.459 0.473 0.461 0.470 0.464 0.446 ENVISAT 0.454 0.444 0.456 0.454 0.463 0.463 0.454 JASON2 0.396 0.396 0.405 0.413 0.404 0.407 0.404 SPOT4 0.438 0.449 0.433 0.429 0.439 0.436 0.446 SPOT5 0.410 0.402 0.415 0.417 0.400 0.413 0.410 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 430 422 409 421 476 447 427 AMVB 386 423 413 438 350 428 363 ARFB 375 333 384 259 306 380 337 ASEB 258 162 272 293 209 250 196 BADB 491 482 450 498 544 526 247 BEMB 1505 1467 1395 1410 1364 1453 1426 BETB 383 384 445 374 395 389 386 CHAB 615 583 595 616 585 606 560 CIDB 334 331 445 390 359 392 337 COBB 777 744 784 761 777 793 732 CRQB 321 285 271 255 251 279 290 DIOB 301 299 259 245 256 291 272 DJIB 328 318 357 333 400 335 386 EASB 387 440 328 346 389 394 439 EVEB 192 213 211 243 212 207 219 GAVB 253 200 233 261 225 270 248 GR3B 0 0 0 0 0 0 0 GREB 481 427 467 445 430 476 417 HBMB 438 494 497 411 446 486 464 JIUB 425 429 433 357 295 417 329 KETB 381 385 395 419 500 365 445 KIUB 429 460 471 400 460 428 423 KOLB 458 418 525 471 406 428 422 KRBB 520 645 584 502 615 533 662 KRWB 252 282 249 237 242 228 228 LICB 305 320 324 359 210 360 226 MAHB 92 133 61 31 72 0 18 MALB 332 331 314 366 367 370 380 MANB o 0 0 0 325 378 333 343 MATB o 347 318 324 279 351 334 368 METB 483 487 514 515 520 490 494 MIAB 400 381 382 431 394 415 439 MSPB 533 496 482 375 497 496 488 NOXB 442 328 308 407 417 399 391 PAUB 419 408 485 441 429 444 418 PDMB 354 388 306 384 429 321 423 REUB 265 222 318 326 298 282 274 REZB 481 566 517 521 559 506 599 RIQB 347 316 329 227 313 310 314 ROVB 945 970 971 1030 970 964 974 SALB 288 324 229 265 320 255 379 SANB o 311 270 320 465 325 308 346 SPJB 1265 1275 1270 1229 1329 1146 357 STJB 542 601 520 551 539 519 517 SYPB 1105 1098 1040 1161 1112 1102 1093 THUB 1289 1323 1316 1283 1189 1316 1146 TLSB 594 575 571 557 594 569 585 YASB 495 483 420 430 408 0 453 YEMB 467 483 487 508 478 453 518 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 4747 0 5359 0 3160 AMVB 1694 1285 3635 585 1090 ARFB 1371 1047 2973 689 896 ASEB 1029 770 2281 301 742 BADB 1932 1532 3983 611 1292 BEMB 6551 4423 4381 2106 4053 BETB 1304 1188 2711 846 942 CHAB 2095 1693 5056 1228 1401 CIDB 1341 1160 2772 688 944 COBB 2800 2191 5542 1738 1703 CRQB 2005 823 4301 492 830 DIOB 1493 875 3705 419 746 DJIB 1457 1005 2815 777 883 EASB 1189 1157 2680 894 1119 EVEB 623 483 1586 428 710 GAVB 1022 947 3853 0 854 GR3B 1625 6 4063 0 2 GREB 1765 1463 4363 679 1168 HBMB 1614 1270 3214 1125 998 JIUB 1370 1171 3042 789 1076 KETB 2254 1321 4675 560 1202 KIUB 1533 1244 3652 935 1151 KOLB 1612 1272 3477 1003 998 KRBB 2015 1882 4359 822 1617 KRWB 1338 904 2508 750 805 LICB 1352 1002 2664 507 886 MAHB 1034 189 1782 12 303 MALB 1400 992 2309 768 922 MANB 1379 858 2639 310 701 MATB 2057 1223 4474 195 1132 METB 2620 1852 4787 129 1798 MIAB 1728 1292 3430 714 1033 MSPB 1914 1406 4160 912 1191 NOXB 1577 1292 3246 601 978 PAUB 1389 1248 2900 1052 1014 PDMB 1536 1217 4183 445 1088 REUB 1473 911 2927 399 845 REZB 3483 1892 4076 521 1765 RIQB 1058 856 857 420 1011 ROVB 4616 3292 5245 923 2908 SALB 1302 1010 2415 654 943 SANB 1606 1223 3696 237 1054 SPJB 5707 3508 3717 1669 2956 STJB 1922 1572 4507 953 1424 SYPB 4473 3715 4280 1119 3171 THUB 6344 4034 4770 1648 3609 TLSB 1859 1599 4216 1303 1297 YASB 1432 1192 3182 682 930 YEMB 3485 36 5271 1116 2394 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 11.5 11.6 11.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 3.3 +- 1.2 mm TY = -19.3 +- 1.0 mm TZ = 6.4 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.8 +- 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 0.57 0.53 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr