****************************************************************************** dorisreport 19-May-2009 17:56:34 Message No 1636 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1145 = 01350 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1145 from 16-12-2001 to 22-12-2001 DORIS name (using day of start): 01350 Days of year: from 2001/350 to 2001/356 ============================================================== Author: Pascal Willis 1) Contacts =========== Email pascal.willis@ign.fr Phone +33-1-5727-8481 FAX +33-1-5727-8482 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/ign01350wd08.snx.Z weekly sinex in ITRF2005 pub/doris/products/sinex_series/ignwd/ign01350wd09.snx.Z geocenter series in ITRF2005 pub/doris/products/geoc/ign09wd01.geoc.Z Earth Orientation Parameters time series in ITRF2005 pub/doris/products/eop/ign09wd01.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 ITRF2005 pub/doris/products/sinex_series/ignwd/ignwd09.snx.dsc geocenter series in ITRF2005 pub/doris/products/geoc/ign09wd01.geoc.dsc Earth Orientation Parameters time series in ITRF2005 pub/doris/products/eop/ign09wd01.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., C. Boucher, H. Fagard, Z. Altamimi (2005), Applications geodesiques du systeme DORIS a l'Institut Geographique National, Geodetic applications of the DORIS system at the French Institut Geographique National, C.R. Geoscience, 337(7), 653-662, DOI: 10.1016/j.crte.2005.03.002 4) Global Statistics ==================== GPS week number 1145 from 16-12-2001 to 22-12-2001 Total number of stations = 42 Total number of satellites = 3 Combinations (daily to weekly) CHI2 / DOF = 3.48 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 16-12-2001 14569 6 14563 0.0 17-12-2001 16323 14 16309 0.1 18-12-2001 15682 20 15662 0.1 19-12-2001 16202 13 16189 0.1 20-12-2001 15929 17 15912 0.1 21-12-2001 15905 18 15887 0.1 22-12-2001 15880 9 15871 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 2993 5095 4631 4839 4734 4707 5125 SPOT4 5141 4965 4612 5172 5095 5021 4818 TOPEX 6429 6249 6419 6178 6083 6159 5928 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- SPOT2 0.446 0.472 0.460 0.453 0.452 0.484 0.475 SPOT4 0.463 0.453 0.466 0.457 0.445 0.485 0.448 TOPEX 0.464 0.477 0.481 0.473 0.455 0.468 0.475 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 687 833 840 802 761 646 846 AMTB 250 342 258 385 326 310 240 ASDB 232 238 266 200 247 254 176 BADA 342 438 439 465 400 415 451 CACB 185 217 171 194 199 206 312 CHAB 509 518 480 506 0 0 0 CICB 250 298 240 224 276 294 291 COLA o 266 290 281 342 270 302 265 DIOA o 224 257 291 242 218 221 316 EASB 306 416 475 432 303 440 403 EVEB 172 217 251 193 196 210 201 FAIB 575 679 605 714 662 628 694 FUTB 295 301 325 355 359 302 317 GOMB 281 352 348 392 403 344 362 GREB 352 454 435 376 428 416 451 HBKB 280 326 307 346 319 334 360 KESB 256 246 227 168 248 274 235 KIUB 0 0 0 94 110 116 122 KOKA 407 570 478 437 565 612 505 KRAB o 564 384 381 453 556 440 380 LIBB 254 200 248 332 301 263 288 MAHB 83 117 60 111 107 98 114 MANA 341 356 356 384 365 395 351 MARB 328 359 379 343 390 376 383 METB 84 144 111 249 238 255 290 MORA 298 317 362 267 278 260 291 MSOB o 314 318 339 327 362 348 353 PAQB 212 265 283 272 288 304 274 PDMB 255 196 234 249 279 284 218 RAQB 291 296 226 247 237 259 238 REUB 213 215 216 201 196 252 256 REYB 382 335 267 324 339 331 280 RIPB 468 519 490 473 486 500 550 ROTA o 616 791 728 674 745 810 763 SANB 243 299 234 203 224 284 251 SODB 314 359 313 333 326 371 366 SPIB 688 710 666 717 726 614 747 STJB 359 385 373 390 474 384 273 SYPB 527 711 596 684 657 661 608 TLHA 445 366 414 428 430 460 421 YARB 275 391 357 351 369 311 446 YELB 448 526 588 544 534 494 543 6.2) stations rejected from solution ------------------------------------ the following stations were not given in the output sinex solutions : day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- AREB 206 192 193 223 187 241 189 DJIB 232 300 339 338 304 366 273 HELB 269 298 228 232 256 245 212 this is due to the lack of data or to some stations related problems as described below 6.3) statistics per station and per satellite (stations in sinex) ----------------------------------------------------------------- SPOT2 SPOT4 TOPEX ----------------------------- ADEA 1679 1818 1918 AMTB 560 650 901 ASDB 442 379 792 BADA 699 777 1474 CACB 488 402 594 CHAB 506 578 929 CICB 519 603 751 COLA 577 680 759 DIOA 619 773 377 EASB 719 749 1307 EVEB 367 442 631 FAIB 1164 1369 2024 FUTB 525 763 966 GOMB 712 755 1015 GREB 805 919 1188 HBKB 682 667 923 KESB 497 541 616 KIUB 442 0 0 KOKA 801 906 1867 KRAB 902 977 1279 LIBB 625 661 600 MAHB 101 95 494 MANA 611 809 1128 MARB 601 748 1209 METB 857 514 0 MORA 400 644 1029 MSOB 642 830 889 PAQB 506 579 813 PDMB 742 699 274 RAQB 505 560 729 REUB 504 470 575 REYB 828 940 490 RIPB 845 994 1647 ROTA 1774 1917 1436 SANB 464 504 770 SODB 653 680 1049 SPIB 2106 2232 530 STJB 599 718 1321 SYPB 1320 1532 1592 TLHA 559 481 1924 YARB 705 820 975 YELB 896 1082 1699 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- SPOT2 SPOT4 TOPEX ----------------------------- AREB 408 521 502 DJIB 672 548 932 HELB 556 583 601 7) External Comparisons ======================= (for information) 7.1) Stations coordinates ------------------------- Looking at the transformation results Comparing with solution ign09d02 at epoch of observations Weekly DORIS residuals in mm N E V ------------------- WRMS 15.5 22.8 16.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign09d02 TX = -2.0 +- 1.9 mm TY = -7.6 +- 1.7 mm TZ = 47.5 +- 1.5 mm 7.3) Scale factor ----------------- Scale factor / ITRF2005 using reference ign09d02 S = -0.6 +- 0.3 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 1.42 1.23 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr