This is a multi-part message in MIME format... ------------=_1110823257-10281-67 ****************************************************************************** dorisreport 14-Mar-2005 19:00:49 Message No 0167 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1307 = 05023 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1307 from 23-01-2005 to 29-01-2005 DORIS name (using day of start): 05023 Days of year: from 2005/23 to 2005/29 ============================================================== 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/ign05023wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05023wd04.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 1307 from 23-01-2005 to 29-01-2005 Total number of stations = 43 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.91 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 23-01-2005 22827 15 22812 0.1 24-01-2005 23173 3 23170 0.0 25-01-2005 23956 27 23929 0.1 26-01-2005 22176 13 22163 0.1 27-01-2005 21319 23 21296 0.1 28-01-2005 21397 21 21376 0.1 29-01-2005 22424 34 22390 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 --------------------------------------------------------------- ENVISAT 6690 6699 7004 5783 4932 4479 5392 SPOT2 4447 4708 4758 4284 4602 4952 4730 SPOT4 4967 4940 4824 4942 4891 5107 5188 SPOT5 6708 6823 7343 7154 6871 6838 7080 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.421 0.402 0.417 0.415 0.419 0.430 0.427 SPOT2 0.444 0.420 0.424 0.435 0.439 0.434 0.433 SPOT4 0.423 0.417 0.419 0.423 0.443 0.431 0.432 SPOT5 0.387 0.372 0.394 0.382 0.375 0.381 0.383 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 1384 1437 1478 1460 1406 1290 1268 AMTB 484 391 431 459 437 402 425 CADB 398 394 364 356 315 363 371 CHAB 597 675 711 596 685 618 541 CICB 412 448 428 460 443 360 438 CROB 324 328 408 336 335 278 346 DIOA o 0 0 0 0 0 236 519 DJIB 413 467 434 450 404 359 447 EASB 450 432 452 402 377 417 490 FAIB o 1006 1045 1025 902 975 811 897 FUTB 426 431 474 444 427 412 352 GALA 392 437 396 390 285 387 436 GREB 573 533 589 583 511 506 510 HBKB 0 0 0 0 33 103 90 HEMB 377 447 357 328 291 275 335 KESB 439 231 413 358 360 337 382 KIUB 543 491 521 448 446 448 345 KOLB 447 499 555 446 521 429 462 KRAB o 821 864 922 791 738 742 818 KRUB 314 282 219 246 246 221 381 LIBB 0 108 80 241 392 454 400 MAHB 328 386 431 337 281 292 349 MATB 440 518 445 383 431 445 484 METB 687 629 624 662 644 356 316 MORB 309 356 375 339 350 325 291 MSPB 550 525 528 471 572 541 442 PAQB 461 496 529 454 450 412 435 PDMB 412 509 406 419 495 478 413 PURA 328 147 510 365 328 327 402 REUB 356 332 424 330 343 317 309 REZB 630 706 735 736 624 495 384 RIDA 470 397 401 451 362 339 448 SAKB 685 747 643 684 711 641 610 SALB 0 0 0 0 0 19 246 SANB 487 504 552 577 436 474 491 SODB o 464 432 547 455 435 388 447 SPJB 1604 1640 1605 1471 1559 1628 1433 SYPB 1501 1438 1438 838 483 1249 1376 THUB 1152 1314 1337 1234 1232 1158 1150 TLHA 499 448 506 568 359 496 352 TRIB o 554 431 442 470 356 394 449 YASB 344 489 419 482 503 479 543 YELB 802 831 844 768 703 634 741 6.2) stations rejected from solution ------------------------------------ the following stations were not given in the output sinex solutions : day1 day2 day3 day4 day5 day6 day7 --------------------------------------------------------------- MANB 0 0 0 0 57 90 89 this is due to the lack of data or to some stations related problems as described below MANB 1 8 2004 1 1 2010 equipement problem, received on ENVISAT only 6.3) statistics per station and per satellite (stations in sinex) ----------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- ADEB 2617 1990 2248 3143 AMTB 1035 572 621 1090 CADB 773 625 685 695 CHAB 1371 873 1178 1360 CICB 784 689 773 1069 CROB 969 337 407 827 DIOA 216 189 204 188 DJIB 786 662 773 934 EASB 602 846 886 1076 FAIB 1742 1226 1353 3118 FUTB 794 544 817 995 GALA 668 675 683 884 GREB 1047 839 967 1374 HBKB 0 237 0 0 HEMB 801 483 488 1060 KESB 663 542 593 846 KIUB 905 847 764 981 KOLB 783 877 910 1182 KRAB 1364 1432 1369 2099 KRUB 578 419 411 720 LIBB 344 479 465 585 MAHB 727 499 487 899 MATB 930 562 735 1147 METB 1304 622 707 1413 MORB 473 742 579 661 MSPB 1052 777 948 1141 PAQB 915 647 904 1200 PDMB 869 669 726 1212 PURA 540 588 653 769 REUB 594 514 549 882 REZB 1718 466 729 1766 RIDA 881 605 582 1118 SAKB 1406 1118 1220 1383 SALB 0 91 60 169 SANB 927 792 989 1205 SODB 700 892 889 1020 SPJB 3614 2228 2386 3519 SYPB 2068 1766 1930 3340 THUB 2845 1888 1894 2524 TLHA 1031 491 481 1675 TRIB 774 678 810 1144 YASB 905 828 805 994 YELB 1571 912 968 2444 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 ------------------------------------- MANB 0 250 0 0 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 16.6 17.3 12.2 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -13.1 +- 1.6 mm TY = 5.6 +- 1.6 mm TZ = -1.6 +- 1.4 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.7 +- 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 1.14 0.66 ============================================================== ------------=_1110823257-10281-67 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 ------------=_1110823257-10281-67--