****************************************************************************** dorisreport 22-Mar-2012 06:55:16 Message No 2867 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1675 = 12043 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1675 from 12-02-2012 to 18-02-2012 DORIS name (using day of start): 12043 Days of year: from 2012/43 to 2012/49 ============================================================== 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/ign12043wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12043wd10.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 1675 from 12-02-2012 to 18-02-2012 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.43 the following satellites were used in the combination 2012 43 cryosat2 envisat jason2 spot4 spot5 2012 44 cryosat2 envisat jason2 spot4 spot5 2012 45 cryosat2 envisat jason2 spot4 spot5 2012 46 cryosat2 envisat jason2 spot4 spot5 2012 47 cryosat2 envisat jason2 spot4 spot5 2012 48 cryosat2 envisat jason2 spot4 spot5 2012 49 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 -------------------------------------------------------- 12-02-2012 48371 128 48243 0.3 13-02-2012 48101 72 48029 0.1 14-02-2012 48083 100 47983 0.2 15-02-2012 47872 70 47802 0.1 16-02-2012 46015 67 45948 0.1 17-02-2012 49541 102 49439 0.2 18-02-2012 49363 82 49281 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 9196 9392 9408 9259 6573 9447 9505 ENVISAT 7993 8027 7943 8054 8063 8211 8149 JASON2 17428 17279 17046 17131 17461 17938 18001 SPOT4 4941 4763 4983 5093 5330 5043 4822 SPOT5 8685 8568 8603 8265 8521 8800 8804 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.448 0.435 0.435 0.448 0.435 0.434 0.436 ENVISAT 0.442 0.441 0.447 0.455 0.455 0.455 0.452 JASON2 0.400 0.398 0.400 0.401 0.394 0.403 0.397 SPOT4 0.445 0.426 0.441 0.447 0.425 0.428 0.427 SPOT5 0.411 0.409 0.389 0.389 0.409 0.413 0.411 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 424 427 496 428 423 424 428 AMVB 417 366 441 411 440 410 383 ARFB 321 274 265 407 406 322 278 ASEB 294 279 265 303 263 224 241 BADB 498 541 510 483 488 464 552 BEMB 1314 1386 1399 1463 1492 1321 1340 BETB 428 385 373 398 396 411 406 CHAB 591 608 605 590 590 584 602 CIDB 381 376 306 377 348 428 417 COBB 865 771 734 794 761 831 774 CRQB 189 335 370 291 275 279 287 DIOB 301 275 256 273 297 254 285 DJIB 352 354 355 258 331 382 367 EASB 82 327 389 388 402 379 336 EVEB o 195 237 193 195 229 207 230 GAVB 242 260 222 256 239 206 277 GR3B 0 0 0 0 0 0 0 GREB 475 429 468 495 460 487 426 HBMB 458 387 461 498 447 470 450 HEMB 283 267 300 319 414 328 267 JIUB 375 235 352 449 353 435 289 KETB 461 466 395 377 375 427 443 KIUB 499 419 323 434 463 466 423 KOLB 522 488 370 471 469 475 494 KRBB 567 495 588 566 584 618 494 KRWB 237 212 300 297 425 287 225 LICB 373 337 353 370 322 315 293 MAHB 315 270 267 211 300 292 316 MANB o 399 401 329 293 415 337 463 MATB o 0 0 0 165 389 345 342 METB 557 531 471 486 516 557 539 MIAB 388 473 404 380 438 370 450 MSPB 385 490 456 543 452 410 451 NOXB 362 490 409 369 360 291 441 PAUB 489 399 382 439 461 458 460 PDMB o 338 363 427 331 359 373 374 REUB 348 293 256 278 247 317 371 REZB 506 543 578 507 583 561 517 RIQB 196 147 145 241 207 186 187 ROVB 1044 951 1085 970 1029 1050 1016 SALB 277 237 382 329 428 320 206 SANB o 363 373 415 317 384 321 371 SPJB 1373 1224 1297 1292 1223 1297 1211 STJB o 487 546 558 495 567 553 473 SYPB 1134 1114 1072 601 441 1059 1158 THUB 1201 1316 1338 1299 1286 1384 1231 TLSB 568 575 601 610 563 600 594 YASB 422 438 486 454 486 409 393 YEMB 518 505 427 469 486 499 504 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 5074 0 5276 0 3173 AMVB 1799 1286 3757 622 1111 ARFB 1274 1071 2975 486 926 ASEB 1107 854 2286 382 817 BADB 1991 1650 4486 688 1384 BEMB 6580 4356 4532 1859 4026 BETB 1287 1228 2733 844 972 CHAB 2388 1678 5057 1228 1402 CIDB 1294 1229 2734 676 1001 COBB 2913 2257 5305 1632 1878 CRQB 2061 827 4329 442 877 DIOB 1424 780 3608 434 851 DJIB 1550 1031 3131 747 909 EASB 1021 1007 2497 824 880 EVEB 612 482 1556 448 697 GAVB 970 911 4059 1 888 GR3B 1786 8 4116 0 6 GREB 1848 1461 4311 685 1207 HBMB 1538 1333 3192 1004 1003 HEMB 1552 980 2866 459 888 JIUB 1356 1233 2873 587 1072 KETB 2303 1282 4829 678 1138 KIUB 1473 1213 3715 911 1170 KOLB 1786 1314 3350 1022 1108 KRBB 1965 1839 4153 651 1651 KRWB 1259 973 2876 838 765 LICB 1321 1011 2579 635 895 MAHB 1072 995 1682 411 929 MANB 1569 1220 3054 647 1008 MATB 1641 878 3615 211 861 METB 2813 1891 4801 194 1820 MIAB 1832 1251 3470 687 1070 MSPB 1928 1400 4167 827 1120 NOXB 1638 1263 3286 617 1042 PAUB 1450 1249 2877 984 1045 PDMB 1509 1163 4052 489 1067 REUB 1361 955 2879 461 962 REZB 3449 2003 3827 579 1676 RIQB 683 495 515 209 706 ROVB 4905 3405 5363 1055 2973 SALB 1449 995 2951 661 820 SANB 1573 1205 3749 379 1098 SPJB 6373 4043 3829 1851 3349 STJB 2010 1508 4471 938 1392 SYPB 3677 3171 3618 997 2664 THUB 6376 4021 4505 1707 3684 TLSB 1866 1644 4023 1311 1296 YASB 1820 1308 3604 826 1125 YEMB 3910 11 5101 1128 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 11.8 10.9 14.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 9.4 +- 0.9 mm TY = -13.7 +- 0.9 mm TZ = -31.9 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.3 +- 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 0.16 0.30 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr