****************************************************************************** dorisreport 27-Apr-2012 07:14:53 Message No 2922 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1680 = 12078 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1680 from 18-03-2012 to 24-03-2012 DORIS name (using day of start): 12078 Days of year: from 2012/78 to 2012/84 ============================================================== 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/ign12078wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12078wd10.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 1680 from 18-03-2012 to 24-03-2012 Total number of stations = 50 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.32 the following satellites were used in the combination 2012 78 cryosat2 envisat jason2 spot4 spot5 2012 79 cryosat2 envisat jason2 spot4 spot5 2012 80 cryosat2 envisat jason2 spot4 spot5 2012 81 cryosat2 envisat jason2 spot4 spot5 2012 82 cryosat2 envisat jason2 spot4 spot5 2012 83 envisat jason2 spot4 spot5 2012 84 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 -------------------------------------------------------- 18-03-2012 47156 63 47093 0.1 19-03-2012 47380 89 47291 0.2 20-03-2012 47501 100 47401 0.2 21-03-2012 47083 140 46943 0.3 22-03-2012 43176 111 43065 0.3 23-03-2012 38676 83 38593 0.2 24-03-2012 48059 94 47965 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 9161 9322 9302 9329 5549 0 9186 ENVISAT 7758 7946 7868 7960 8011 7929 8089 JASON2 16791 16585 16882 16622 16444 17137 17191 SPOT4 5238 5208 4993 4717 4971 5282 5172 SPOT5 8145 8230 8356 8315 8090 8245 8327 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.436 0.425 0.433 0.444 0.433 0.000 0.423 ENVISAT 0.456 0.433 0.437 0.456 0.465 0.443 0.448 JASON2 0.414 0.398 0.399 0.426 0.423 0.401 0.414 SPOT4 0.431 0.432 0.428 0.451 0.438 0.427 0.434 SPOT5 0.404 0.392 0.399 0.402 0.414 0.408 0.392 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 425 419 428 488 437 429 426 AMVB 395 405 435 431 394 389 390 ARFB 355 327 295 297 397 363 313 ASEB 182 268 296 245 211 169 224 BADB 479 471 225 521 536 498 420 BEMB 1445 1376 1358 1432 1523 1469 1366 BETB 405 448 352 388 336 358 442 CADB 352 462 394 406 395 298 425 CHAB 548 613 599 574 614 588 553 CIDB 362 412 380 328 349 278 394 COBB 794 794 751 799 776 738 858 CRQB 253 263 259 280 327 318 276 DIOB 278 256 240 221 291 309 300 DJIB 358 319 294 313 222 297 369 EASB 380 329 352 372 341 434 340 EVEB o 203 224 235 164 210 209 203 GR3B 0 0 0 0 0 0 0 GREB 414 412 462 408 468 448 477 HBMB 531 489 414 456 452 486 506 HEMB 437 314 326 236 109 469 336 JIUB 404 392 378 391 392 429 436 KETB 416 391 430 419 382 374 390 KIUB 467 440 423 439 434 454 473 KOLB 433 524 440 451 424 398 497 KRBB 631 593 587 535 528 625 655 KRWB 387 393 397 373 378 372 313 LICB 247 218 226 187 218 223 241 MAHB 294 293 172 243 197 237 351 MALB 352 294 344 303 278 0 0 MANB o 399 299 341 343 314 288 248 MATB o 354 350 384 344 343 387 346 METB 556 546 530 534 508 479 499 MIAB 314 407 429 394 428 393 384 MSPB 464 467 374 450 543 480 470 NOXB 311 360 395 234 205 338 295 PAUB 458 475 396 421 396 378 421 PDMB o 422 308 388 372 350 407 315 REUB 251 314 316 304 273 219 313 RIMB 162 0 0 0 139 285 157 RIQB 224 156 123 147 167 168 131 ROVB 0 568 1044 987 952 996 1094 SALB 355 245 319 301 259 422 243 SANB o 297 402 477 351 326 331 342 SPJB 1277 1239 1148 1265 1286 1273 1274 STJB o 584 505 562 530 513 613 526 SYPB 1059 1117 1116 1043 1105 1073 1073 THUB 1320 1368 1323 1346 1294 1309 1366 TLSB 579 577 571 566 592 552 590 YASB 429 417 428 389 472 451 424 YEMB 480 489 510 480 454 468 490 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 5180 0 5334 0 3176 AMVB 1749 1288 3733 602 1107 ARFB 1394 1035 2746 541 941 ASEB 1263 725 1824 385 720 BADB 2083 1531 4589 501 1284 BEMB 6605 4381 4387 2110 4016 BETB 1284 1127 2546 839 958 CADB 1572 1125 3086 811 976 CHAB 2324 1662 4920 1236 1396 CIDB 1282 1099 2603 687 930 COBB 3053 2245 5552 1735 1751 CRQB 2070 931 4221 389 830 DIOB 1491 806 3572 461 746 DJIB 1382 988 2402 662 865 EASB 1128 1096 2434 855 1057 EVEB 646 462 1452 469 695 GR3B 1821 6 4026 0 3 GREB 1857 1462 4173 796 1166 HBMB 1502 1332 3080 1075 1071 HEMB 1596 952 2771 525 903 JIUB 1365 1270 3168 900 1101 KETB 2257 1313 4612 524 1150 KIUB 1504 1290 3581 910 1194 KOLB 1753 1271 3490 1051 1025 KRBB 2004 1986 4092 760 1715 KRWB 1554 1076 2632 932 930 LICB 1344 861 2282 435 755 MAHB 999 885 1910 484 780 MALB 1364 896 2164 666 794 MANB 1643 1154 2952 391 905 MATB 2064 1142 4449 355 1119 METB 2757 1862 4881 277 1757 MIAB 1913 1223 3422 712 1007 MSPB 2036 1398 4171 813 1179 NOXB 1605 1185 3128 565 845 PAUB 1435 1183 2671 954 1002 PDMB 1595 1190 3964 448 1089 REUB 1338 940 2849 331 889 RIMB 865 749 2021 213 613 RIQB 607 432 396 168 621 ROVB 4770 3263 5253 955 2768 SALB 1613 925 2231 620 924 SANB 1687 1281 3431 316 1096 SPJB 6527 3985 3966 1691 3364 STJB 1924 1582 4195 970 1461 SYPB 4350 3717 4320 983 3160 THUB 6308 4070 4620 1950 3677 TLSB 1562 1597 3675 1280 1320 YASB 1745 1324 3565 801 1055 YEMB 3795 4 5228 1072 2428 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 9.4 10.3 11.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -5.7 +- 1.1 mm TY = -11.5 +- 1.1 mm TZ = 21.0 +- 1.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.1 +- 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 0.39 0.44 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr