****************************************************************************** dorisreport 27-Oct-2006 21:53:33 Message No 0720 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1394 = 06267 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1394 from 24-09-2006 to 30-09-2006 DORIS name (using day of start): 06267 Days of year: from 2006/267 to 2006/273 ============================================================== 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 cddis.gsfc.nasa.gov weekly sinex in free-network pub/doris/products/sinex_series/ignwd/ign06267wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06267wd04.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., 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. 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. 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 Week 1341 = 05261 : Do not estimate the constant term of the relativity correction (this is already done by CNES by modifying the on-board oscillator, exactly like for GPS). Use a cutoff angle of 15 degrees (before that, no cutoff angle was used but now CNES is delivering data at very low elevation. Do not estimate tropospheric correction as random walk anymore. Use 1 parameter per hour (maximum) + 2.5 cm@ 1d as constraint. 4) Global Statistics ==================== GPS week number 1394 from 24-09-2006 to 30-09-2006 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.59 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 24-09-2006 22849 13 22836 0.1 25-09-2006 22973 9 22964 0.0 26-09-2006 22245 13 22232 0.1 27-09-2006 16163 22 16141 0.1 28-09-2006 15781 13 15768 0.1 29-09-2006 18839 12 18827 0.1 30-09-2006 19299 9 19290 0.0 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 --------------------------------------------------------------- ENVISAT 6320 6493 5555 3232 3341 3781 3487 SPOT2 4854 4576 4538 1310 1627 4264 4382 SPOT4 4804 4787 4891 4778 4521 4343 4592 SPOT5 6858 7108 7248 6821 6279 6439 6829 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.408 0.398 0.401 0.384 0.403 0.412 0.435 SPOT2 0.438 0.434 0.426 0.397 0.374 0.428 0.399 SPOT4 0.402 0.416 0.419 0.428 0.436 0.414 0.422 SPOT5 0.366 0.363 0.361 0.358 0.361 0.355 0.358 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 --------------------------------------------------------------- ADEB 1462 1478 1266 1004 1235 1242 1188 AMTB 472 448 478 384 350 398 431 ARFB 356 440 409 317 247 266 331 ASDB 312 312 338 222 166 302 238 CADB 462 422 482 367 371 429 386 CHAB 593 593 508 377 371 464 448 CICB 443 497 456 378 363 384 368 CROB 339 314 327 260 252 271 275 DIOB 438 479 497 282 302 410 439 DJIB 492 466 447 237 352 432 475 EASB 521 440 459 0 0 0 0 EVEB 224 248 250 93 202 251 220 FAIB o 1088 1041 882 687 643 848 756 FUTB 397 410 377 242 270 369 367 GAVB 184 211 253 226 222 219 212 GREB 421 512 493 410 433 482 411 HEMB 462 338 276 228 257 395 316 JIUB 544 536 498 422 178 170 396 KIUB 605 620 608 402 351 511 561 KOLB 536 556 507 396 429 516 402 KRUB 384 360 436 361 288 370 382 LICB 333 345 375 234 320 309 360 MAHB 373 353 366 208 214 302 307 MALB 427 459 429 331 335 350 399 MANB o 430 487 454 358 67 0 55 MATB 443 511 452 323 327 399 400 METB 718 700 719 597 640 690 724 MIAB 355 413 476 352 258 305 326 MONB 602 503 558 395 346 445 505 MORB 491 464 386 388 344 400 424 NOWB 367 447 336 337 279 295 318 PAQB 503 487 444 367 366 474 427 PDMB 445 367 406 264 334 412 411 REUB 368 393 387 298 236 310 325 REZB 609 699 567 514 604 594 663 RIPB 656 697 745 528 519 510 498 ROTB 1474 1422 1423 1085 1100 1231 1283 SANB 479 482 514 427 345 444 381 SCRB 500 447 406 276 336 354 351 SODB o 445 488 405 275 298 358 365 SPJB 1493 1509 1509 1235 1392 1443 1444 STJB 555 644 270 0 0 0 0 SYPB 1486 1454 1344 981 950 1148 1165 THUB 1383 1283 1253 997 990 1171 1159 TLHA 492 547 482 461 397 444 455 TRIB o 474 515 497 330 350 455 456 YASB 587 553 556 392 399 347 433 YELB 854 876 842 298 0 371 691 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) ----------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- ADEB 2837 1540 1748 3108 AMTB 855 539 639 1105 ARFB 752 335 536 918 ASDB 577 298 465 696 CADB 794 616 690 964 CHAB 817 530 873 1243 CICB 826 589 714 949 CROB 722 323 356 722 DIOB 862 668 760 720 DJIB 972 563 709 895 EASB 446 341 426 366 EVEB 333 325 319 558 FAIB 1675 928 1156 2431 FUTB 677 412 616 907 GAVB 856 0 0 783 GREB 951 627 719 1103 HEMB 664 384 471 911 JIUB 956 449 582 999 KIUB 1030 699 1051 1198 KOLB 873 742 942 992 KRUB 772 521 648 785 LICB 709 292 579 861 MAHB 705 297 426 850 MALB 695 574 750 891 MANB 640 321 450 559 MATB 824 435 682 1056 METB 1808 631 841 1711 MIAB 802 447 482 910 MONB 973 608 803 1143 MORB 796 622 780 899 NOWB 774 364 471 930 PAQB 981 531 830 967 PDMB 719 494 628 983 REUB 618 440 526 882 REZB 1735 475 493 1720 RIPB 1544 482 623 1673 ROTB 3112 1297 1600 3285 SANB 891 605 656 1100 SCRB 798 537 566 905 SODB 851 400 639 920 SPJB 3533 1512 1872 3383 STJB 524 297 315 424 SYPB 2277 1456 1853 3196 THUB 2582 1306 1621 2982 TLHA 1345 345 598 1167 TRIB 720 697 859 970 YASB 955 740 814 978 YELB 1303 574 657 1519 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- 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 15.2 18.4 13.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -10.3 +- 2.2 mm TY = 15.5 +- 2.3 mm TZ = 49.6 +- 1.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -0.9 +- 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 1.72 1.00 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/6NYaKxqlNqliRQNNKFoFDzEjWLK8JBlILChnMLx63UUGI+XZRSmMx1CLGLZ0ubE0L47cM0Npzq+pLKwyPp7eCoz7NWjL29Bjp7JFe9Zmtk27q1UcskuMxUmS2CYLXw0gj6dPx8NbdgN0uCSNGSLHz4!IqYD++FuFuR!huesUMuskrUmHTB62mRRnWeve!Puug+0tVwW8yYxiGLyRcUNjSqN+ySAtQtsw si ce message est indésirable (pourriel). 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