****************************************************************************** dorisreport 10-May-2012 23:01:56 Message No 2937 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1682 = 12092 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1682 from 01-04-2012 to 07-04-2012 DORIS name (using day of start): 12092 Days of year: from 2012/92 to 2012/98 ============================================================== 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/ign12092wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12092wd10.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 1682 from 01-04-2012 to 07-04-2012 Total number of stations = 48 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 3.86 the following satellites were used in the combination 2012 92 cryosat2 envisat jason2 spot4 spot5 2012 93 cryosat2 envisat jason2 spot4 spot5 2012 94 cryosat2 envisat jason2 spot4 spot5 2012 95 cryosat2 envisat jason2 spot4 spot5 2012 96 cryosat2 envisat jason2 spot4 spot5 2012 97 cryosat2 envisat jason2 spot4 spot5 2012 98 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 -------------------------------------------------------- 01-04-2012 47556 60 47496 0.1 02-04-2012 47462 113 47349 0.2 03-04-2012 47547 84 47463 0.2 04-04-2012 46403 82 46321 0.2 05-04-2012 43931 78 43853 0.2 06-04-2012 44198 71 44127 0.2 07-04-2012 44621 62 44559 0.1 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 9328 8948 9210 8763 9075 8502 8818 ENVISAT 7852 8104 7852 8058 6049 7381 7530 JASON2 17288 17398 17302 16753 16193 16112 16119 SPOT4 4855 5068 5166 5011 4677 4605 4808 SPOT5 8173 7831 7933 7736 7859 7527 7284 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.449 0.455 0.430 0.446 0.428 0.462 0.458 ENVISAT 0.444 0.454 0.451 0.450 0.429 0.438 0.454 JASON2 0.396 0.399 0.408 0.406 0.397 0.417 0.399 SPOT4 0.436 0.447 0.419 0.422 0.435 0.437 0.429 SPOT5 0.397 0.411 0.409 0.407 0.397 0.403 0.400 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 465 50 0 0 0 0 0 AMVB 434 364 379 437 390 437 386 ARFB 283 370 320 325 339 298 394 ASEB 288 339 299 280 272 275 311 BADB 508 475 458 440 546 524 482 BEMB 1466 1452 1315 1302 1423 1441 1475 BETB 312 381 404 358 313 380 427 CADB 377 308 310 379 401 360 358 CHAB 590 569 601 574 604 593 600 CIDB 367 369 385 420 376 261 374 COBB 823 763 758 845 752 782 779 CRQB 306 372 269 214 347 319 321 DIOB 296 276 271 283 219 273 290 EASB 358 374 388 343 318 383 361 EVEB o 178 227 215 209 237 192 204 GR3B 0 0 0 0 0 0 0 GREB 461 465 481 467 431 425 499 HBMB 0 328 505 468 363 471 474 HEMB 255 302 401 274 290 291 310 JIUB 385 337 346 357 214 292 413 KETB 369 366 509 459 486 407 365 KIUB 433 414 451 484 411 405 428 KOLB 374 488 380 519 474 399 464 KRBB 597 649 695 519 527 602 549 KRWB 335 307 301 393 256 108 0 LICB 340 218 150 361 342 268 284 MAHB 226 184 304 331 263 213 337 MALB 294 354 400 319 204 0 0 MANB o 335 368 376 245 418 311 257 MATB o 316 369 376 323 369 356 318 METB 526 531 585 564 457 501 495 MIAB 390 398 368 390 466 372 386 MSPB 431 558 465 392 461 413 548 NOXB 372 412 325 383 490 399 362 PAUB 389 416 359 495 128 222 437 PDMB o 294 354 395 337 330 411 333 REUB 297 276 221 376 340 270 275 RIMB 273 295 0 0 0 0 0 ROVB 1099 1092 1133 1047 976 1053 979 SALB 363 329 388 244 262 409 324 SANB o 457 389 395 390 428 429 306 SPJB 1318 1216 1216 1334 1225 1283 1281 STJB o 519 505 625 484 539 569 488 SYPB 1091 1075 1099 1114 1077 668 338 THUB 1341 1233 1328 1177 1289 1322 1320 TLSB 578 582 601 551 509 595 606 YASB 439 461 460 425 468 458 460 YEMB 423 475 482 516 490 424 469 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 3386 0 3566 0 1773 AMVB 1673 1280 3692 632 1095 ARFB 1492 1092 2869 427 941 ASEB 1197 864 2309 556 842 BADB 2153 1630 4580 678 1418 BEMB 6557 4459 4298 1783 4090 BETB 1333 1111 2698 811 881 CADB 1516 1088 3068 740 934 CHAB 2247 1666 5126 1223 1384 CIDB 1360 1187 2790 621 911 COBB 3050 2254 5539 1690 1770 CRQB 2074 884 4287 493 904 DIOB 1546 750 3681 439 840 EASB 1182 1087 2643 837 1057 EVEB 584 483 1458 403 719 GR3B 1772 6 3954 0 5 GREB 1846 1450 4259 723 1245 HBMB 1630 1220 3050 1059 911 HEMB 1530 989 2837 337 971 JIUB 1364 1210 3015 620 1005 KETB 2271 1293 4858 669 1158 KIUB 1467 1307 3687 875 1116 KOLB 1856 1256 3381 982 991 KRBB 2009 1924 4228 912 1578 KRWB 1620 914 2793 756 827 LICB 1386 903 2613 570 830 MAHB 1182 1033 2314 353 857 MALB 1341 860 2447 684 819 MANB 1667 1112 3160 544 898 MATB 2101 1179 4567 297 1140 METB 2734 1865 4968 260 1782 MIAB 1917 1252 3484 637 1059 MSPB 1905 1389 4234 867 1160 NOXB 1679 1258 3240 627 1060 PAUB 1326 1145 2835 936 903 PDMB 1583 1153 4029 412 1076 REUB 1520 944 2883 431 866 RIMB 848 573 2055 141 546 ROVB 4807 3415 5074 1240 2999 SALB 1533 1007 2863 602 969 SANB 1722 1278 3560 596 1102 SPJB 6672 4050 4086 1810 3332 STJB 1994 1527 4325 945 1421 SYPB 3997 3492 3753 939 3056 THUB 6599 4030 4666 1674 3626 TLSB 1913 1544 4389 1315 1305 YASB 1821 1324 3721 839 1179 YEMB 3906 7 5278 1092 2296 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 11.3 10.0 12.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -4.2 +- 1.2 mm TY = -4.9 +- 1.2 mm TZ = 39.9 +- 1.1 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 0.26 0.28 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr