This is a multi-part message in MIME format... ------------=_1103164111-6928-10 ****************************************************************************** dorisreport 16-Dec-2004 03:24:03 Message No 0083 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1295 = 04305 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1295 from 31-10-2004 to 06-11-2004 DORIS name (using day of start): 04305 Days of year: from 2004/305 to 2004/311 ============================================================== 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/ign04305wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign04305wd04.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 1295 from 31-10-2004 to 06-11-2004 Total number of stations = 42 Total number of satellites = 5 Combinations (daily to weekly) CHI2 / DOF = 1.90 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 31-10-2004 25530 28 25502 0.1 01-11-2004 21141 14 21127 0.1 02-11-2004 21459 18 21441 0.1 03-11-2004 21387 67 21320 0.3 04-11-2004 22273 61 22212 0.3 05-11-2004 21226 21 21205 0.1 06-11-2004 22376 47 22329 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 5939 5957 5853 5811 6035 5610 6512 SPOT2 4042 3989 4258 4411 4434 4202 4430 SPOT4 4479 4467 4615 4503 4830 4639 4777 SPOT5 6316 6244 6715 6595 6913 6754 6610 TOPEX 4726 470 0 0 0 0 0 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.429 0.443 0.426 0.464 0.428 0.423 0.425 SPOT2 0.397 0.420 0.420 0.424 0.436 0.432 0.456 SPOT4 0.445 0.433 0.444 0.437 0.445 0.447 0.431 SPOT5 0.401 0.399 0.398 0.423 0.405 0.393 0.371 TOPEX 0.439 0.411 0.000 0.000 0.000 0.000 0.000 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 1832 1569 1399 1475 1452 1494 1428 AMTB 543 532 486 512 440 485 484 ASDB 250 187 126 141 137 148 160 BADB 569 567 601 516 593 537 536 CHAB 1046 629 590 730 698 660 709 CICB 599 468 458 430 474 454 449 CROB 343 308 287 335 367 369 304 DIOA o 499 547 422 383 534 474 464 DJIB 545 481 458 413 516 438 403 EASB 644 458 508 481 474 384 462 FAIB o 1295 1109 1107 1143 1014 1097 1150 FUTB 564 307 399 465 466 392 434 GALA 344 466 452 449 472 377 424 GREB 674 558 536 385 503 513 543 HEMB 383 350 427 325 297 392 350 KESB 187 0 0 0 0 0 0 KIUB 262 312 335 267 289 262 276 KOLB 762 488 446 508 621 505 495 KRAB o 667 487 586 737 628 655 638 KRUB 457 254 49 26 162 0 172 LIBB 596 329 405 376 374 350 347 MATB 577 485 499 409 452 382 477 METB 840 888 820 728 771 705 849 MORB 495 352 277 376 334 288 399 MSPB 696 622 533 515 481 585 613 PAQB 653 435 510 463 529 466 512 PDMB 176 460 500 365 365 486 434 PURA 0 0 181 442 466 362 402 REUB 516 411 406 496 391 353 401 REZB 0 0 729 872 1090 1042 942 RIDA 375 340 283 279 293 323 287 RIPB 867 730 717 687 766 733 725 SAKB 716 503 469 512 470 547 735 SALB 254 238 361 241 348 250 281 SANB 681 529 450 541 614 478 382 SODB o 663 431 437 520 410 264 459 STJB 358 260 366 191 220 271 391 SYPB 1598 1515 1492 1442 1454 1392 1471 TLHA 776 450 479 435 521 484 440 TRIB o 629 599 509 441 418 445 519 YASB 591 667 519 434 477 531 538 YELB 1033 859 869 940 926 886 921 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 TOPEX --------------------------------------------- ADEB 2826 2151 2183 3201 390 AMTB 1105 711 685 1119 106 ASDB 440 274 325 83 67 BADB 1525 671 675 1243 58 CHAB 1409 1063 1190 1378 280 CICB 831 789 763 1110 167 CROB 1004 348 318 777 20 DIOA 862 779 820 922 36 DJIB 823 839 859 822 65 EASB 753 861 858 1096 214 FAIB 2306 1214 1417 3482 226 FUTB 809 539 760 910 131 GALA 732 662 739 889 93 GREB 1064 739 712 1380 172 HEMB 904 456 472 1009 43 KESB 53 32 31 75 0 KIUB 511 352 519 639 0 KOLB 918 885 1008 1145 205 KRAB 1410 803 850 1589 36 KRUB 229 251 193 467 105 LIBB 745 640 647 875 145 MATB 1221 541 634 982 144 METB 1750 947 1094 1757 105 MORB 550 671 593 652 143 MSPB 1265 740 902 1193 165 PAQB 862 834 912 1082 181 PDMB 788 506 622 1091 41 PURA 396 461 509 562 0 REUB 821 634 725 859 51 REZB 1111 987 1257 1664 0 RIDA 0 547 636 1147 114 RIPB 1127 1150 1327 1670 137 SAKB 1127 1012 849 980 219 SALB 555 515 355 711 17 SANB 1073 811 802 1224 108 SODB 812 599 817 1058 194 STJB 1086 0 262 684 61 SYPB 2827 2112 2157 3864 126 TLHA 1134 489 461 1501 320 TRIB 853 741 787 1239 200 YASB 1006 844 898 1072 163 YELB 1945 903 1217 2671 196 6.4) statistics per station and per satellite (deleted stations) ---------------------------------------------------------------- ENVISAT SPOT2 SPOT4 SPOT5 TOPEX --------------------------------------------- 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 15.7 12.8 19.7 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -15.2 +- 2.3 mm TY = 3.6 +- 1.6 mm TZ = -41.0 +- 1.7 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -3.5 +- 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 1.22 0.66 ============================================================== ------------=_1103164111-6928-10 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 ------------=_1103164111-6928-10--