This is a multi-part message in MIME format... ------------=_1104860241-10281-2 ****************************************************************************** dorisreport 04-Jan-2005 18:35:19 Message No 0101 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Updated Report for week 1149 = 02013 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1149 from 13-01-2002 to 19-01-2002 DORIS name (using day of start): 02013 Days of year: from 2002/13 to 2002/19 ============================================================== Author: Pascal Willis 1) Contacts =========== Email pascal.willis@ign.fr Phone 1-818-393-4748 FAX 1-818-393-4965 2) Products =========== All the following products are available at the CDDIS data center ftp cddisa.gsfc.nasa.gov weekly sinex in free-network pub/doris/products/sinex_series/ignwd/ign02013wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign02013wd04.snx.Z geocenter series pub/doris/products/geoc/ign03wd01.geoc.Z Earth Orientation Parameters time series pub/doris/products/eop/ign03wd01.eop.Z 3) Analysis Strategy ==================== The DORIS data have been processed using the Gipsy/Oasis software at 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/ignwd05.snx.dsc weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ignwd04.snx.dsc geocenter series pub/doris/products/geoc/ign03wd01.geoc.dsc Earth Orientation Parameters time series pub/doris/products/eop/ign03wd01.eop.dsc For references, the following papers are recommended : Willis, P., Y. Bar-Sever, and G. Tavernier (2003), DORIS as a potential part of a Global Geodetic Observing System, J. Geodyn, G07_10P_D-001, in press. Willis, P., M. Heflin (2004), External validation of the GRACE GGM01C gravity field using GPS and DORIS positioning results, Geophys. Res. Lett., 31, 13, L13616, doi:10.1029/2004GL020038. Last changes in the time series data analysis: Week 678 = 93003 : See DORISMail #0288, start of the time series Week 1281 = 04207 : Estimate DORIS wet tropospheric delay per measurement using a randomwalk approch (Psigma = 5 cm per day) no horizontal gradients used yet. See DORISMail #0345 Week 1287 = 04249 : Start using cumulative solution ign04d02 to perform the ITRF2000 transformation (when needed) Week 1293 = 04291 : Start using actual mass information for all satellites (as provided in the new *mass.txt files) instead of nominal values as before 4) Global Statistics ==================== GPS week number 1149 from 13-01-2002 to 19-01-2002 Total number of stations = 43 Total number of satellites = 3 Combinations (daily to weekly) CHI2 / DOF = 6.21 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 13-01-2002 15498 407 15091 2.6 14-01-2002 10622 440 10182 4.1 15-01-2002 16150 18 16132 0.1 16-01-2002 15717 21 15696 0.1 17-01-2002 15904 25 15879 0.2 18-01-2002 15823 21 15802 0.1 19-01-2002 15559 19 15540 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 --------------------------------------------------------------- SPOT2 4494 4295 4593 4558 4692 4816 4679 SPOT4 4612 0 5223 5009 4804 4756 4817 TOPEX 5985 5887 6316 6129 6383 6230 6044 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- SPOT2 0.511 0.489 0.457 0.458 0.472 0.472 0.493 SPOT4 0.569 0.000 0.455 0.465 0.470 0.477 0.493 TOPEX 0.477 0.484 0.467 0.472 0.491 0.479 0.498 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 --------------------------------------------------------------- ADEA 767 760 726 688 839 825 762 AMTB 322 323 316 310 334 286 339 AREB 218 190 191 226 228 206 185 ASDB 0 113 192 187 203 154 167 BADA 410 409 369 398 378 488 415 CACB 154 198 158 216 131 145 158 CICB 252 192 314 307 279 191 226 COLA o 324 331 311 221 303 314 314 DJIB 295 310 306 294 314 293 351 EASB 472 469 350 406 399 400 384 EVEB 174 187 146 186 213 189 154 FAIB 621 702 651 645 687 667 661 FUTB 266 286 291 312 335 286 260 GOMB 348 348 401 321 348 343 387 GREB 430 391 367 410 426 381 396 HBKB 370 370 305 249 313 324 350 KESB 248 290 261 327 355 254 283 KIUB 369 418 364 383 360 389 418 KOKA 489 481 509 606 626 443 436 KRAB o 373 500 482 460 407 349 431 KRUB 103 105 216 168 181 213 212 LIBB 278 328 303 271 310 315 261 MAHB 81 81 129 92 117 123 142 MANA 370 383 385 377 337 387 362 MARB 414 408 406 355 393 413 401 METB 232 225 319 320 339 330 298 MORA 306 306 332 329 348 355 312 MSOB 358 298 281 275 344 389 370 PAQB 249 215 314 258 272 273 250 PDMB 238 316 268 271 249 191 295 RAQB 211 154 160 159 284 179 121 REUB 213 226 278 288 213 243 187 REYB 304 338 360 374 311 348 276 RIPB 503 467 540 435 500 546 483 ROTA 773 760 745 802 773 715 746 SANB 280 222 273 286 223 224 191 SODB 307 333 408 397 306 263 282 SPIB 716 666 676 676 635 717 649 STJB 398 365 437 406 420 412 412 SYPB 679 618 702 367 161 651 663 TLHA 411 459 466 513 455 406 487 YARB 385 352 338 358 406 398 389 YELB 515 550 577 608 605 573 432 6.2) stations rejected from solution ------------------------------------ the following stations were not given in the output sinex solutions : day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- HELB 278 244 245 195 261 255 273 this is due to the lack of data or to some stations related problems as described below HELB 1 2 2000 31 7 2002 antenna fall DORISmail # 199 6.3) statistics per station and per satellite (stations in sinex) ----------------------------------------------------------------- SPOT2 SPOT4 TOPEX ----------------------------- ADEA 1783 1746 1904 AMTB 677 684 961 AREB 449 567 513 ASDB 251 378 436 BADA 907 780 1282 CACB 378 378 443 CICB 469 547 827 COLA 745 734 738 DJIB 728 724 799 EASB 860 859 1336 EVEB 362 364 531 FAIB 1304 1425 1951 FUTB 474 873 797 GOMB 789 863 943 GREB 933 922 1078 HBKB 697 782 916 KESB 649 560 882 KIUB 834 911 1059 KOKA 842 953 2041 KRAB 816 1011 1312 KRUB 361 364 545 LIBB 719 637 802 MAHB 61 87 638 MANA 716 852 1169 MARB 796 803 1278 METB 816 879 387 MORA 528 890 988 MSOB 720 957 843 PAQB 565 610 745 PDMB 773 816 329 RAQB 290 395 627 REUB 531 553 616 REYB 870 957 506 RIPB 991 978 1633 ROTA 1902 1915 1555 SANB 554 522 698 SODB 622 664 1116 SPIB 2071 2346 435 STJB 768 878 1304 SYPB 1330 1287 1254 TLHA 576 518 2298 YARB 912 758 1072 YELB 1112 1119 1679 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- SPOT2 SPOT4 TOPEX ----------------------------- HELB 578 598 649 7) External Comparisons ======================= (for information) 7.1) Stations coordinates ------------------------- Looking at the transformation results Comparing with solution ign04d02 at epoch of observations Weekly DORIS residuals in mm N E V ------------------- WRMS 32.2 30.9 25.4 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -6.0 +- 1.6 mm TY = -14.2 +- 1.6 mm TZ = -3.9 +- 1.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.7 +- 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 2.51 1.04 ============================================================== ------------=_1104860241-10281-2 Content-Type: text/plain; name="message.footer" Content-Disposition: inline; filename="message.footer" Content-Transfer-Encoding: 8bit Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr ------------=_1104860241-10281-2--