****************************************************************************** dorisreport 27-Oct-2011 00:02:02 Message No 2697 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1653 = 11254 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1653 from 11-09-2011 to 17-09-2011 DORIS name (using day of start): 11254 Days of year: from 2011/254 to 2011/260 ============================================================== 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/ign11254wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11254wd10.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 1653 from 11-09-2011 to 17-09-2011 Total number of stations = 46 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.78 the following satellites were used in the combination 2011 254 cryosat2 envisat jason2 spot4 spot5 2011 255 cryosat2 envisat jason2 spot4 spot5 2011 256 cryosat2 envisat jason2 spot4 spot5 2011 257 cryosat2 envisat jason2 spot4 spot5 2011 258 cryosat2 envisat jason2 spot4 spot5 2011 259 cryosat2 envisat jason2 spot4 spot5 2011 260 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 -------------------------------------------------------- 11-09-2011 46104 55 46049 0.1 12-09-2011 46485 61 46424 0.1 13-09-2011 47300 64 47236 0.1 14-09-2011 46531 121 46410 0.3 15-09-2011 46473 90 46383 0.2 16-09-2011 46460 133 46327 0.3 17-09-2011 46410 96 46314 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 8729 8410 8714 8482 8691 8629 8378 ENVISAT 7808 7700 7960 7900 7680 7680 7829 JASON2 16667 17300 17075 16802 16884 16878 16991 SPOT4 4622 4813 5036 4819 4819 4733 4802 SPOT5 8223 8201 8451 8407 8309 8407 8314 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.438 0.427 0.437 0.438 0.443 0.441 0.439 ENVISAT 0.440 0.445 0.456 0.452 0.445 0.457 0.441 JASON2 0.406 0.412 0.405 0.410 0.424 0.411 0.405 SPOT4 0.446 0.453 0.441 0.436 0.456 0.437 0.435 SPOT5 0.404 0.408 0.402 0.411 0.408 0.410 0.395 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 492 423 420 421 429 493 423 AMVB 448 418 331 387 422 395 405 ARFB 300 407 391 122 0 117 341 ASEB 233 242 256 308 340 217 249 BADB 501 494 496 462 481 520 493 BEMB 1458 1452 1421 1390 1373 1465 1491 BETB 201 322 395 341 352 315 227 CHAB 551 610 600 597 605 592 606 CIDB 256 312 426 377 366 277 316 COBB 729 776 788 779 825 759 770 CRQB 318 346 246 290 223 317 334 DIOB 315 267 299 255 245 255 279 DJIB 383 325 312 357 364 365 335 EASB 415 409 381 370 331 355 423 EVEB 194 182 226 221 220 226 190 GAVB 265 209 222 216 254 252 226 GR3B 0 0 0 0 0 0 0 GREB 429 430 411 478 440 417 476 HBMB 421 495 501 431 456 418 450 JIUB 275 454 352 400 379 267 426 KETB 431 402 459 429 389 456 415 KIUB 412 443 431 439 428 346 378 KOLB 404 418 488 453 448 424 365 KRBB 620 586 661 599 537 595 587 KRWB 358 351 404 394 364 432 298 LICB 336 219 205 277 288 249 332 MATB o 363 310 397 368 318 358 322 METB 513 460 555 527 546 572 500 MIAB 460 330 365 355 375 469 355 MSPB 497 458 523 418 407 540 465 PAUB 391 390 452 419 346 350 360 PDMB 413 344 352 398 359 385 412 REUB 241 260 308 292 347 291 239 REZB 566 521 615 615 479 553 611 RIMB 0 169 282 312 264 291 309 RIQB 271 366 299 331 309 321 369 ROVB 1057 966 1076 1039 1038 1037 969 SALB 388 365 338 370 340 288 425 SANB o 478 283 431 368 464 433 248 SPJB 1290 1288 1299 1298 1262 1274 1300 STJB 517 525 508 582 507 467 566 SYPB 1059 1124 1153 1068 1158 1126 1063 THUB 1188 1344 1175 1334 1344 1196 1325 TLSB 584 594 572 586 596 580 604 YASB 494 431 463 448 390 501 476 YEMB 428 478 489 489 495 477 466 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 4795 0 5472 0 3227 AMVB 1728 1266 3760 600 1094 ARFB 1455 961 2727 417 776 ASEB 1163 843 2293 351 797 BADB 2112 1691 4496 590 1412 BEMB 6392 4412 4383 2035 4074 BETB 1272 976 2442 771 857 CHAB 2060 1710 5061 1212 1385 CIDB 1319 1116 2611 577 906 COBB 2781 2201 5637 1672 1767 CRQB 1873 905 4342 410 903 DIOB 1489 904 3652 378 892 DJIB 1499 1015 2776 768 866 EASB 1132 1179 2534 924 1072 EVEB 614 475 1534 407 705 GAVB 848 930 3858 0 872 GR3B 1757 5 3941 0 4 GREB 1747 1417 4287 662 1232 HBMB 1581 1302 3161 1109 961 JIUB 1305 1206 2940 746 1028 KETB 2169 1343 4831 625 1179 KIUB 1480 1215 3441 860 1105 KOLB 1635 1192 3404 976 1011 KRBB 1939 1916 4124 968 1563 KRWB 1536 1144 2869 910 969 LICB 1339 885 2470 591 812 MATB 1967 1195 4630 265 1108 METB 2638 1854 4725 305 1771 MIAB 1732 1257 3477 675 1083 MSPB 1871 1336 4240 880 1214 PAUB 1363 1124 2699 946 896 PDMB 1500 1286 3988 449 1124 REUB 1439 890 2896 392 859 REZB 3408 2080 4167 555 1782 RIMB 869 925 2315 207 904 RIQB 1149 897 966 299 1208 ROVB 4362 3322 5214 1138 2987 SALB 1417 1168 2838 703 939 SANB 1655 1289 3789 472 1114 SPJB 6578 4027 4127 1974 3334 STJB 1910 1604 4365 899 1409 SYPB 4336 3722 4634 1116 3205 THUB 6420 3991 4793 1653 3646 TLSB 1873 1618 4288 1304 1348 YASB 1729 1368 3662 871 1185 YEMB 3556 8 5093 1119 2330 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 8.1 13.6 10.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 4.0 +- 0.9 mm TY = -17.1 +- 0.9 mm TZ = -6.6 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.1 +- 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 0.37 0.32 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr