****************************************************************************** dorisreport 28-Feb-2012 00:24:34 Message No 2845 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1671 = 12015 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1671 from 15-01-2012 to 21-01-2012 DORIS name (using day of start): 12015 Days of year: from 2012/15 to 2012/21 ============================================================== 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/ign12015wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12015wd10.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 1671 from 15-01-2012 to 21-01-2012 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.78 the following satellites were used in the combination 2012 15 cryosat2 envisat spot4 spot5 2012 16 envisat spot4 spot5 2012 17 envisat spot4 spot5 2012 18 envisat spot5 2012 19 cryosat2 envisat spot4 spot5 2012 20 cryosat2 envisat spot4 spot5 2012 21 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 -------------------------------------------------------- 15-01-2012 30437 33 30404 0.1 16-01-2012 22464 4 22460 0.0 17-01-2012 22157 13 22144 0.1 18-01-2012 17183 2 17181 0.0 19-01-2012 31284 80 31204 0.3 20-01-2012 31156 49 31107 0.2 21-01-2012 48640 92 48548 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 8636 0 0 0 8797 8989 8748 ENVISAT 8187 8389 8178 8205 8508 8248 8208 JASON2 0 0 0 0 0 0 17486 SPOT4 5139 5252 5099 0 4973 5166 5303 SPOT5 8442 8819 8867 8976 8926 8704 8803 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.471 0.000 0.000 0.000 0.472 0.456 0.490 ENVISAT 0.440 0.439 0.442 0.444 0.473 0.465 0.462 JASON2 0.000 0.000 0.000 0.000 0.000 0.000 0.412 SPOT4 0.473 0.429 0.437 0.000 0.431 0.433 0.488 SPOT5 0.401 0.391 0.398 0.396 0.422 0.412 0.418 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 426 418 427 431 497 426 424 AMVB 399 389 400 397 430 399 446 ARFB 343 362 306 315 271 322 340 ASEB 314 211 354 212 315 268 224 BADB 493 423 475 532 520 514 439 BEMB 1448 1416 1423 1327 1466 1475 1434 BETB 365 437 404 375 419 353 399 CHAB 589 561 596 596 604 603 568 CIDB 305 417 392 379 377 317 363 COBB 732 821 812 789 772 736 813 CRQB 315 247 236 319 281 286 263 DIOB 270 282 261 270 308 316 282 DJIB 357 384 345 381 362 344 348 EASB 440 351 347 389 286 410 383 EVEB o 206 241 235 211 220 189 210 GAVB 216 223 268 234 283 256 209 GR3B 0 0 0 0 0 0 0 GREB 488 481 477 429 469 490 462 HBMB 499 511 390 432 476 438 522 HEMB 0 370 318 340 196 386 416 JIUB 452 461 364 286 338 420 452 KETB 407 396 411 475 366 386 355 KIUB 452 457 449 462 412 432 485 KOLB 381 490 424 441 462 420 471 KRBB 607 662 566 556 595 539 676 KRWB 347 236 363 323 365 309 261 LICB 331 300 360 318 378 373 269 MAHB 0 0 138 135 229 218 294 MALB 364 359 347 366 366 372 329 MANB o 346 395 343 411 401 352 388 MATB o 365 370 343 333 367 339 166 METB 501 561 557 547 496 453 557 MIAB 363 415 421 388 431 389 372 MSPB 508 468 0 459 488 509 467 NOXB 341 333 338 390 445 344 277 PAUB 431 476 463 412 383 351 446 PDMB o 411 338 352 443 348 379 355 REUB 213 283 295 346 284 243 230 REZB 592 573 564 603 466 549 552 RIQB 228 208 188 168 151 209 189 ROVB 962 1110 926 991 1086 974 1063 SALB 411 267 351 282 305 389 407 SANB o 218 388 339 365 448 240 375 SPJB 1299 1212 1278 1265 1181 1268 1260 STJB o 567 524 521 545 492 560 567 SYPB 1057 1102 1118 1054 1112 1095 1062 THUB 1311 1314 1270 1299 1315 1289 1292 TLSB 583 598 511 596 601 597 565 YASB 438 426 464 397 470 495 428 YEMB 481 470 508 503 467 466 482 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 4785 0 5395 0 3175 AMVB 1756 1309 3613 606 1092 ARFB 1285 1044 2666 536 925 ASEB 1195 909 2097 400 785 BADB 2029 1646 4393 536 1369 BEMB 6584 4310 4399 2094 4015 BETB 1360 1165 2812 864 952 CHAB 2153 1657 5002 1236 1378 CIDB 1358 1156 2686 639 964 COBB 2739 2228 5439 1677 1777 CRQB 1909 810 4247 491 904 DIOB 1464 829 3606 448 836 DJIB 1475 1043 2731 738 916 EASB 1125 1210 2637 893 1126 EVEB 636 479 1477 471 739 GAVB 883 949 3771 0 833 GR3B 1751 6 3803 0 6 GREB 1846 1469 4442 739 1228 HBMB 1560 1325 3112 1128 1022 HEMB 1295 911 2411 431 816 JIUB 1453 1227 2947 799 1081 KETB 2227 1298 4650 529 1150 KIUB 1545 1305 3546 912 1151 KOLB 1686 1249 3395 1085 992 KRBB 1977 1942 4191 820 1673 KRWB 1095 999 2491 840 853 LICB 1229 1031 2596 564 903 MAHB 1128 932 2296 468 866 MALB 1321 1049 2422 723 941 MANB 1506 1217 2932 617 968 MATB 2014 1177 4554 321 1132 METB 2848 1906 4871 219 1789 MIAB 1705 1217 3567 685 1006 MSPB 1848 1347 4198 921 1183 NOXB 1597 1203 3233 507 991 PAUB 1395 1205 2774 1004 985 PDMB 1605 1211 4094 423 1133 REUB 1377 887 2894 323 884 REZB 3417 2049 3913 511 1782 RIQB 665 514 513 208 721 ROVB 4586 3474 5239 936 2993 SALB 1364 1125 2743 624 980 SANB 1495 1135 3560 391 1004 SPJB 6427 4030 3795 1750 3303 STJB 1943 1555 4511 915 1464 SYPB 4459 3706 4241 1025 3157 THUB 6402 4047 4557 1916 3623 TLSB 1837 1605 4217 1282 1299 YASB 1625 1314 3603 899 1126 YEMB 3610 7 5010 1083 2407 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 13.5 15.7 16.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 10.4 +- 1.4 mm TY = -30.6 +- 1.1 mm TZ = -36.6 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.6 +- 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 0.59 0.51 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr