****************************************************************************** dorisreport 10-May-2012 22:50:23 Message No 2936 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1681 = 12085 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1681 from 25-03-2012 to 31-03-2012 DORIS name (using day of start): 12085 Days of year: from 2012/85 to 2012/91 ============================================================== 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/ign12085wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12085wd10.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 1681 from 25-03-2012 to 31-03-2012 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 85 cryosat2 envisat jason2 spot4 spot5 2012 86 cryosat2 envisat jason2 spot4 spot5 2012 87 cryosat2 envisat jason2 spot4 spot5 2012 88 cryosat2 envisat jason2 spot4 spot5 2012 89 cryosat2 envisat jason2 spot4 spot5 2012 90 cryosat2 envisat jason2 spot4 spot5 2012 91 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 -------------------------------------------------------- 25-03-2012 47302 100 47202 0.2 26-03-2012 46878 116 46762 0.2 27-03-2012 47291 90 47201 0.2 28-03-2012 46717 100 46617 0.2 29-03-2012 45460 134 45326 0.3 30-03-2012 47156 99 47057 0.2 31-03-2012 47296 103 47193 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 9268 9279 9093 9492 9275 9219 9156 ENVISAT 7951 7878 7688 8070 7811 7781 7819 JASON2 16730 16477 17394 17787 17269 17275 17379 SPOT4 4891 4739 4991 5197 2707 4865 4636 SPOT5 8362 8389 8035 6071 8264 7917 8203 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.423 0.430 0.449 0.442 0.428 0.447 0.438 ENVISAT 0.441 0.456 0.460 0.460 0.453 0.441 0.445 JASON2 0.413 0.402 0.423 0.402 0.405 0.407 0.417 SPOT4 0.424 0.443 0.440 0.435 0.422 0.429 0.434 SPOT5 0.411 0.404 0.398 0.430 0.415 0.404 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 427 464 454 431 424 411 442 AMVB 400 363 398 402 399 455 394 ARFB 286 339 204 358 370 325 308 ASEB 201 218 289 199 188 265 289 BADB 523 547 477 516 460 469 583 BEMB 1388 1383 1495 1488 1360 1406 1401 BETB 382 372 265 374 251 410 374 CADB 373 371 355 209 414 412 408 CHAB 604 596 535 572 573 611 594 CIDB 348 209 396 336 338 274 286 COBB 795 760 780 736 819 817 728 CRQB 281 246 320 276 279 144 250 DIOB 304 279 294 268 258 275 321 DJIB 306 322 355 318 312 26 0 EASB 304 361 344 374 400 346 326 EVEB o 225 170 198 225 213 188 177 GR3B 0 0 0 0 0 0 0 GREB 428 400 500 466 474 504 434 HBMB 423 450 493 436 0 0 0 HEMB 285 323 222 427 403 238 336 JIUB 293 273 404 373 427 396 268 KETB 488 525 366 390 402 369 477 KIUB 407 455 404 407 462 388 386 KOLB 466 406 429 439 436 518 433 KRBB 522 515 537 653 641 498 394 KRWB 384 384 314 359 322 319 393 LICB 239 232 322 228 153 254 242 MAHB 208 190 306 181 306 295 220 MALB 0 79 361 354 344 256 301 MANB o 352 249 253 332 251 281 263 MATB o 328 350 364 356 354 373 380 METB 544 486 459 513 543 529 481 MIAB 440 420 416 400 344 376 456 MSPB 420 490 498 484 461 437 505 NOXB 362 448 438 398 282 369 449 PAUB 358 387 394 418 354 442 362 PDMB o 390 433 326 377 372 357 464 REUB 334 283 250 275 274 334 276 RIMB 324 328 269 283 302 262 343 RIQB 143 144 80 49 22 0 0 ROVB 974 961 78 1020 1120 996 1002 SALB 211 282 273 379 285 265 365 SANB o 398 271 428 367 328 372 315 SPJB 1331 1296 1316 1262 1332 1208 1259 STJB o 536 547 493 497 603 507 556 SYPB 1173 1104 1098 1072 1106 1152 1097 THUB 1195 1204 1313 1182 1389 1303 1254 TLSB 567 596 598 577 581 590 590 YASB 434 414 409 466 434 457 440 YEMB 526 492 457 498 494 521 502 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 5085 0 5250 0 3184 AMVB 1787 1259 3666 597 1095 ARFB 1437 984 2891 490 881 ASEB 1195 701 1949 420 733 BADB 2156 1662 4481 753 1404 BEMB 6451 4405 4373 1931 4006 BETB 1296 1072 2590 794 917 CADB 1545 1068 2922 691 1052 CHAB 2212 1684 5012 1206 1422 CIDB 1392 1016 2524 664 833 COBB 3049 2182 5563 1623 1878 CRQB 2047 837 4244 385 820 DIOB 1553 918 3646 422 775 DJIB 1237 714 1974 534 619 EASB 1166 1121 2620 863 935 EVEB 622 465 1387 427 655 GR3B 1689 8 3697 0 2 GREB 1759 1458 4368 709 1212 HBMB 1621 1084 3125 918 899 HEMB 1588 1076 2863 480 860 JIUB 1368 1165 3087 629 1019 KETB 2411 1310 4516 733 1159 KIUB 1535 1255 3609 880 1135 KOLB 1716 1254 3496 959 1093 KRBB 2010 1852 4102 728 1416 KRWB 1622 1078 2454 919 873 LICB 1301 786 2148 509 766 MAHB 1136 846 2096 313 867 MALB 1311 826 2175 670 733 MANB 1633 1034 2755 437 904 MATB 2200 1244 4503 285 1138 METB 2716 1841 4903 157 1799 MIAB 1905 1287 3630 633 1104 MSPB 1978 1370 4275 886 1184 NOXB 1638 1288 3295 621 1061 PAUB 1371 1107 2703 882 969 PDMB 1583 1271 3974 500 1118 REUB 1429 880 2774 462 956 RIMB 1306 1078 2649 345 908 RIQB 266 191 141 92 224 ROVB 4334 3186 5032 975 2789 SALB 1465 1041 2364 630 804 SANB 1611 1221 3678 308 1117 SPJB 6525 4022 4019 1987 3296 STJB 1952 1571 4684 955 1375 SYPB 4533 3728 4375 1198 3163 THUB 6391 3972 4667 1544 3652 TLSB 1776 1641 4340 1303 1320 YASB 1772 1373 3565 673 1133 YEMB 3931 9 5173 1175 2438 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 9.1 11.2 9.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -5.5 +- 1.0 mm TY = -8.5 +- 0.9 mm TZ = 13.6 +- 0.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 0.6 +- 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 0.31 0.26 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr