****************************************************************************** dorisreport 01-Oct-2011 07:14:50 Message No 2667 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1651 = 11240 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1651 from 28-08-2011 to 03-09-2011 DORIS name (using day of start): 11240 Days of year: from 2011/240 to 2011/246 ============================================================== 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/ign11240wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign11240wd10.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 1651 from 28-08-2011 to 03-09-2011 Total number of stations = 48 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.50 the following satellites were used in the combination 2011 240 cryosat2 envisat jason2 spot4 spot5 2011 241 cryosat2 envisat jason2 spot4 spot5 2011 242 cryosat2 envisat jason2 spot4 spot5 2011 243 cryosat2 envisat jason2 spot4 spot5 2011 244 cryosat2 envisat jason2 spot4 spot5 2011 245 cryosat2 envisat jason2 spot4 spot5 2011 246 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 -------------------------------------------------------- 28-08-2011 38306 63 38243 0.2 29-08-2011 45764 100 45664 0.2 30-08-2011 46251 97 46154 0.2 31-08-2011 47252 62 47190 0.1 01-09-2011 43638 49 43589 0.1 02-09-2011 47836 66 47770 0.1 03-09-2011 48069 82 47987 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 8487 8258 8633 8500 4713 8623 9065 ENVISAT 7617 7652 7920 8078 7931 8070 8134 JASON2 9391 16705 16702 17241 17613 17827 17214 SPOT4 4905 4854 4666 4779 4904 4920 5071 SPOT5 7843 8195 8233 8592 8428 8330 8503 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.440 0.449 0.452 0.447 0.438 0.441 0.435 ENVISAT 0.464 0.436 0.489 0.441 0.447 0.453 0.465 JASON2 0.415 0.411 0.413 0.402 0.407 0.402 0.394 SPOT4 0.448 0.436 0.436 0.443 0.446 0.444 0.438 SPOT5 0.413 0.415 0.424 0.413 0.396 0.409 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 428 417 429 442 485 430 427 AMVB 434 400 436 353 427 396 385 ARFB 344 339 350 389 310 391 322 ASEB 303 258 349 319 305 289 284 BADB 491 426 492 526 487 548 486 BEMB 1459 1420 1374 1424 1453 1444 1360 BETB 317 298 299 325 329 307 381 CHAB 603 580 598 596 591 613 589 CIDB 375 397 426 332 301 388 395 COBB 766 799 822 732 807 780 761 CRQB 274 225 247 295 268 279 286 DIOB 305 297 291 295 284 273 290 DJIB 338 390 372 380 346 336 306 EASB 383 409 328 355 425 350 393 EVEB 229 231 233 221 172 237 234 GAVB 195 185 220 242 210 235 197 GR3B 0 0 0 0 0 0 0 GREB 439 459 495 423 462 458 448 HBMB 471 502 466 386 436 482 453 JIUB 388 430 415 223 353 393 346 KETB 341 430 377 510 417 382 403 KIUB 423 429 396 395 435 404 415 KOLB 466 431 463 406 347 465 427 KRBB 614 630 527 468 560 523 599 KRWB 425 387 310 436 368 391 412 LICB 243 235 314 315 270 234 212 MAHB 293 239 338 128 0 0 0 MATB o 375 373 299 361 355 332 406 METB 0 0 498 477 487 503 502 MIAB 373 376 375 426 358 374 413 MSPB 538 442 474 485 434 566 460 NOXB 0 107 161 488 365 370 329 PAUB 374 443 346 331 395 417 418 PDMB 326 397 342 428 344 297 423 REUB 234 256 376 303 264 270 264 REZB 489 669 425 636 468 519 598 RIMB 153 123 0 147 274 247 351 RIQB 445 384 505 525 394 514 404 ROVB 947 1075 987 979 993 956 1097 SALB 400 411 361 410 414 284 410 SANB o 368 322 383 364 409 304 373 SPJB 1260 1283 1267 1258 1298 1248 1272 STJB 564 565 455 508 557 521 624 SYPB 1108 1091 1165 1143 1097 1131 1091 THUB 1314 1387 1309 1193 1344 1281 1330 TLSB 568 603 595 581 580 583 563 YASB 454 437 387 474 393 416 466 YEMB 0 0 0 264 456 464 490 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 4730 0 5428 0 3185 AMVB 1791 1268 3699 616 1087 ARFB 1376 1093 3003 531 949 ASEB 1245 958 2360 410 888 BADB 2092 1659 4463 651 1392 BEMB 6481 4403 4415 2043 3943 BETB 1289 978 2607 812 865 CHAB 2122 1697 5031 1231 1403 CIDB 1284 1111 2694 786 914 COBB 2672 2181 5575 1701 1780 CRQB 1967 807 4241 422 779 DIOB 1395 885 3738 497 786 DJIB 1510 1042 2799 708 922 EASB 1083 1151 2593 876 1086 EVEB 637 481 1530 480 737 GAVB 887 867 3983 0 817 GR3B 1714 8 4033 0 1 GREB 1781 1456 4262 737 1209 HBMB 1465 1227 3188 1087 1051 JIUB 1401 1192 2841 797 1065 KETB 2250 1328 4510 560 1162 KIUB 1456 1206 3571 893 1161 KOLB 1582 1220 3524 994 957 KRBB 1909 1891 3943 727 1621 KRWB 1483 1219 2833 963 940 LICB 1229 875 2660 493 791 MAHB 608 489 1284 257 472 MATB 1855 1235 4490 281 1145 METB 2662 1648 4786 116 1637 MIAB 1689 1292 3475 665 999 MSPB 1830 1354 4214 977 1194 NOXB 1554 723 3194 349 923 PAUB 1316 1102 2974 942 871 PDMB 1593 1279 4048 393 1124 REUB 1283 883 2769 360 896 REZB 3387 2028 3968 487 1820 RIMB 1126 627 2402 226 934 RIQB 1555 1368 1736 512 1447 ROVB 4393 3210 5207 1113 2967 SALB 1548 1184 2894 694 1031 SANB 1624 1275 3854 339 1074 SPJB 6307 4010 4142 1829 3336 STJB 1860 1570 4474 988 1456 SYPB 4483 3733 4522 1195 3161 THUB 6215 3993 4581 1809 3689 TLSB 1593 1634 4102 1298 1321 YASB 1773 1367 3588 764 1067 YEMB 2035 5 3099 641 1510 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 6.9 8.6 8.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -3.2 +- 1.0 mm TY = -8.2 +- 1.0 mm TZ = 8.7 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.0 +- 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 0.19 0.30 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr