****************************************************************************** dorisreport 28-Feb-2012 00:35:47 Message No 2846 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1672 = 12022 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1672 from 22-01-2012 to 28-01-2012 DORIS name (using day of start): 12022 Days of year: from 2012/22 to 2012/28 ============================================================== 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/ign12022wd08.snx.Z weekly sinex in ITRF2008 pub/doris/products/sinex_series/ignwd/ign12022wd10.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 1672 from 22-01-2012 to 28-01-2012 Total number of stations = 49 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 2.76 the following satellites were used in the combination 2012 22 cryosat2 envisat jason2 spot4 spot5 2012 23 cryosat2 envisat jason2 spot4 spot5 2012 24 cryosat2 envisat jason2 spot4 spot5 2012 25 cryosat2 envisat jason2 spot4 spot5 2012 26 cryosat2 envisat jason2 spot4 spot5 2012 27 cryosat2 envisat jason2 spot4 spot5 2012 28 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 -------------------------------------------------------- 22-01-2012 48118 176 47942 0.4 23-01-2012 48213 97 48116 0.2 24-01-2012 47931 78 47853 0.2 25-01-2012 47832 60 47772 0.1 26-01-2012 48350 75 48275 0.2 27-01-2012 48320 55 48265 0.1 28-01-2012 46642 85 46557 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 9337 9204 9451 9279 9297 9171 9073 ENVISAT 8003 8161 8183 8091 8082 8281 7663 JASON2 16981 17156 16697 16978 17093 17155 16841 SPOT4 5068 4865 4844 5027 5245 5021 4777 SPOT5 8553 8730 8678 8397 8558 8637 8203 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- CRYOSAT2 0.452 0.441 0.436 0.452 0.439 0.455 0.452 ENVISAT 0.439 0.442 0.465 0.462 0.454 0.444 0.449 JASON2 0.405 0.398 0.399 0.406 0.396 0.394 0.401 SPOT4 0.437 0.442 0.466 0.447 0.440 0.447 0.438 SPOT5 0.421 0.394 0.405 0.417 0.408 0.403 0.416 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 424 430 496 427 426 419 425 AMVB 379 420 439 402 392 380 402 ARFB 342 282 283 392 320 342 277 ASEB 242 326 319 281 256 300 241 BADB 77 496 510 487 470 457 557 BEMB 1393 1381 1450 1530 1459 1364 1399 BETB 420 362 423 328 392 444 370 CHAB 606 606 529 608 578 591 599 CIDB 418 370 321 325 290 467 359 COBB 806 732 797 771 782 793 762 CRQB 334 257 303 348 258 283 310 DIOB 275 316 259 332 313 293 283 DJIB 246 245 334 331 365 378 363 EASB 330 415 339 353 399 328 372 EVEB o 238 234 201 209 216 217 233 GAVB 226 251 255 266 179 239 280 GR3B 0 0 0 0 0 0 0 GREB 491 452 470 484 409 477 403 HBMB 453 427 464 428 493 494 408 HEMB 243 325 207 307 460 317 327 JIUB 420 396 362 399 440 442 266 KETB 423 409 358 412 426 392 455 KIUB 457 431 408 240 472 450 419 KOLB 524 414 466 410 412 526 0 KRBB 625 545 583 520 647 611 563 KRWB 354 408 210 354 227 346 299 LICB 239 336 376 372 303 317 333 MAHB 227 229 266 266 295 261 266 MALB 273 193 0 0 0 0 0 MANB o 359 319 326 356 409 371 447 METB 564 552 559 489 492 527 550 MIAB 426 405 400 404 380 408 454 MSPB 451 405 483 518 460 459 394 NOXB 383 390 440 421 321 345 406 PAUB 468 409 449 409 465 481 420 PDMB o 328 440 369 360 436 301 391 REUB 286 307 326 250 209 325 335 REZB 563 515 517 536 615 551 569 RIQB 163 133 163 210 233 187 237 ROVB 1021 975 1031 959 1008 1054 0 SALB 283 341 294 331 447 289 264 SANB o 395 433 382 353 256 386 325 SPJB 1205 1246 1278 1314 1255 1271 1249 STJB o 502 598 493 525 587 503 572 SYPB 1122 1145 1112 1088 1114 1073 1180 THUB 1350 1383 1324 1298 1317 1343 1164 TLSB 588 589 594 584 592 606 565 YASB 478 405 458 444 444 353 399 YEMB 495 498 460 473 481 492 513 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 5135 0 5433 0 3161 AMVB 1780 1251 3661 597 1120 ARFB 1255 1049 2680 453 963 ASEB 1184 887 1994 434 839 BADB 1876 1421 3945 569 1225 BEMB 6554 4442 4419 2010 4019 BETB 1294 1182 2681 860 976 CHAB 2315 1680 5034 1248 1404 CIDB 1306 1171 2774 685 969 COBB 2883 2192 5375 1655 1828 CRQB 2125 918 4384 465 837 DIOB 1545 923 3627 396 851 DJIB 1437 970 2661 631 908 EASB 1154 1181 2622 920 1013 EVEB 646 480 1509 483 691 GAVB 895 939 3962 3 872 GR3B 1938 9 3836 0 5 GREB 1828 1460 4297 718 1150 HBMB 1521 1265 3075 1019 1058 HEMB 1570 1022 2870 481 886 JIUB 1451 1214 3121 745 1110 KETB 2400 1302 4753 600 1149 KIUB 1462 1221 3341 798 1102 KOLB 1773 1289 3332 1013 1109 KRBB 1950 1880 4125 783 1700 KRWB 1143 1013 2302 860 833 LICB 1222 1014 2450 576 902 MAHB 1014 944 2164 466 892 MALB 1308 836 2348 687 843 MANB 1634 1195 3134 499 1028 METB 2859 1897 4854 254 1820 MIAB 1922 1310 3459 682 1057 MSPB 2004 1392 4167 820 1104 NOXB 1626 1343 3252 578 972 PAUB 1476 1237 2948 997 1069 PDMB 1633 1221 3974 473 1062 REUB 1343 912 2908 414 942 REZB 3573 2003 3897 556 1715 RIQB 729 539 515 223 685 ROVB 4157 2816 4427 888 2564 SALB 1456 1053 2627 671 858 SANB 1528 1236 3682 394 1093 SPJB 6616 4045 3871 1753 3356 STJB 2002 1527 4126 1015 1396 SYPB 4278 3711 4386 1247 3160 THUB 6484 3996 4385 1833 3713 TLSB 1629 1648 4051 1281 1331 YASB 1806 1389 3595 664 1087 YEMB 3823 7 5040 1111 2429 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 12.0 11.1 15.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to tf_110726a TX = 2.1 +- 1.1 mm TY = -13.8 +- 1.0 mm TZ = -46.8 +- 0.8 mm 7.3) Scale factor ----------------- Scale factor / ITRF2008 using reference tf_110726a S = 1.4 +- 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 0.41 0.31 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr