****************************************************************************** dorisreport 13-Apr-2012 10:58:38 Message No 2898 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1678 = 12064 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1678 from 04-03-2012 to 10-03-2012 DORIS name (using day of start): 12064 Days of year: from 2012/64 to 2012/70 ============================================================== 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/ign12064wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12064wd10.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 1678 from 04-03-2012 to 10-03-2012 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.43 the following satellites were used in the combination 2012 64 cryosat2 envisat jason2 spot4 spot5 2012 65 cryosat2 envisat jason2 spot4 spot5 2012 66 cryosat2 envisat jason2 spot4 spot5 2012 67 cryosat2 envisat jason2 spot4 spot5 2012 68 cryosat2 envisat jason2 spot4 spot5 2012 69 cryosat2 envisat jason2 spot4 spot5 2012 70 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 -------------------------------------------------------- 04-03-2012 47281 60 47221 0.1 05-03-2012 46838 110 46728 0.2 06-03-2012 46675 89 46586 0.2 07-03-2012 47910 75 47835 0.2 08-03-2012 44119 131 43988 0.3 09-03-2012 46808 125 46683 0.3 10-03-2012 43543 109 43434 0.3 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 9272 9278 9451 9486 8884 9132 8061 ENVISAT 7412 7903 6355 7948 7562 7567 6887 JASON2 17221 16508 17230 17120 14526 16939 16372 SPOT4 4929 4596 5011 5004 4946 4889 4529 SPOT5 8387 8443 8539 8277 8070 8156 7585 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.435 0.442 0.428 0.424 0.421 0.440 0.418 ENVISAT 0.445 0.472 0.456 0.443 0.454 0.442 0.455 JASON2 0.403 0.421 0.402 0.403 0.411 0.406 0.408 SPOT4 0.430 0.456 0.432 0.424 0.443 0.432 0.436 SPOT5 0.396 0.414 0.408 0.395 0.402 0.407 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 425 443 487 430 419 426 434 AMVB 414 385 429 394 387 425 400 ARFB 308 257 291 372 349 321 237 ASEB 343 275 248 267 214 313 201 BADB 562 217 461 510 472 527 552 BEMB 1256 1419 1481 1445 1417 1260 0 BETB 386 413 411 372 442 277 392 CHAB 568 577 605 557 585 584 597 CIDB 362 440 342 339 380 396 388 COBB 785 812 762 761 798 793 798 CRQB 228 261 334 304 275 270 251 DIOB 258 270 285 232 274 287 247 DJIB 335 373 340 358 315 343 366 EASB 390 305 415 427 337 336 336 EVEB o 215 211 213 216 249 214 212 GAVB 195 264 276 217 217 121 0 GR3B 0 0 0 0 0 0 0 GREB 462 490 480 487 472 455 398 HBMB 371 434 419 500 505 414 443 HEMB 336 178 230 402 347 336 338 JIUB 320 409 305 435 397 324 272 KETB 471 447 393 405 386 501 489 KIUB 463 467 395 442 406 459 483 KOLB 453 483 410 373 459 434 456 KRBB 536 526 547 584 629 518 544 KRWB 320 259 282 316 392 389 252 LICB 341 300 241 306 258 380 294 MAHB 0 137 247 286 283 198 220 MALB 0 74 351 31 131 346 368 MANB o 385 293 340 346 276 382 398 MATB o 292 325 354 335 379 348 359 METB 470 534 463 497 565 531 523 MIAB 395 406 445 336 411 433 400 MSPB 403 452 425 499 494 343 460 NOXB 360 479 450 303 363 339 384 PAUB 403 449 421 367 442 420 425 PDMB o 445 350 300 416 338 401 362 REUB 333 301 262 234 287 335 361 RIQB 128 161 130 154 169 160 150 ROVB 1059 938 1080 886 0 0 0 SALB 296 232 246 399 205 395 226 SANB o 327 332 497 260 389 405 381 SPJB 1247 1273 1276 1279 1199 1339 1256 STJB o 571 482 544 541 545 547 546 SYPB 1096 1106 1116 1092 1113 1173 1118 THUB 1133 1348 1321 1346 1340 1136 1348 TLSB 550 560 553 599 586 564 566 YASB 425 405 478 423 427 463 343 YEMB 542 485 457 476 492 509 500 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 5272 0 5397 0 3191 AMVB 1756 1296 3687 558 1121 ARFB 1527 1045 2708 437 879 ASEB 1118 878 2188 445 746 BADB 1826 1507 3806 712 1249 BEMB 5502 3739 3656 1549 3407 BETB 1230 1127 2650 818 948 CHAB 2312 1629 5099 1237 1406 CIDB 1376 1127 2671 693 990 COBB 3013 2229 5586 1610 1890 CRQB 2113 808 4239 379 921 DIOB 1500 768 3595 373 832 DJIB 1566 1032 2875 730 956 EASB 1213 1163 2569 911 977 EVEB 576 466 1416 460 716 GAVB 1047 750 3574 0 753 GR3B 1670 6 4079 1 8 GREB 1774 1421 4305 712 1226 HBMB 1609 1262 3089 1008 1021 HEMB 1575 1081 2955 379 886 JIUB 1328 1182 3050 603 1033 KETB 2249 1309 4579 827 1111 KIUB 1473 1291 3582 938 1190 KOLB 1797 1192 3321 986 1067 KRBB 2005 1946 3953 620 1601 KRWB 1555 1022 2503 930 799 LICB 1331 923 2531 590 876 MAHB 1181 913 2233 432 866 MALB 1328 913 2183 612 740 MANB 1598 1154 3011 589 976 MATB 2055 1156 4523 244 1142 METB 2842 1824 4839 204 1820 MIAB 1740 1223 3534 692 1076 MSPB 1948 1345 4170 766 1149 NOXB 1675 1153 3199 660 1034 PAUB 1352 1135 2813 979 1012 PDMB 1593 1278 4087 451 1048 REUB 1488 900 2769 429 956 RIQB 586 425 458 180 556 ROVB 4804 2968 5252 858 2623 SALB 1434 1012 2642 633 803 SANB 1712 1259 3512 382 1140 SPJB 6462 4011 4147 1952 3246 STJB 1996 1568 4481 965 1383 SYPB 4641 3655 4459 1273 3177 THUB 6493 4014 4802 1647 3668 TLSB 1909 1544 4533 1310 1287 YASB 1816 1297 3633 700 1138 YEMB 3863 5 5267 1153 2427 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 9.7 11.4 10.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = -2.8 +- 1.0 mm TY = -21.6 +- 0.9 mm TZ = -2.0 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.1 +- 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 0.28 0.33 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr