****************************************************************************** dorisreport 23-Feb-2007 10:43:36 Message No 0809 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1410 = 07014 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1410 from 14-01-2007 to 20-01-2007 DORIS name (using day of start): 07014 Days of year: from 2007/14 to 2007/20 ============================================================== 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/ign07014wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07014wd04.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. Week 1405 = 06344 : Use GIPSY/OASIS software installed at Institut de Physique du Globe de Paris 4) Global Statistics ==================== GPS week number 1410 from 14-01-2007 to 20-01-2007 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.67 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 14-01-2007 22352 9 22343 0.0 15-01-2007 22477 8 22469 0.0 16-01-2007 22489 5 22484 0.0 17-01-2007 22656 3 22653 0.0 18-01-2007 23298 4 23294 0.0 19-01-2007 23556 5 23551 0.0 20-01-2007 23549 1 23548 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 6142 6171 6235 6070 6534 6472 6371 SPOT2 4256 4538 4492 4634 4729 4609 4718 SPOT4 4816 4937 4787 4869 4999 5145 5225 SPOT5 7129 6823 6970 7080 7032 7325 7234 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.414 0.424 0.418 0.399 0.399 0.398 0.386 SPOT2 0.416 0.415 0.423 0.422 0.425 0.416 0.423 SPOT4 0.406 0.409 0.403 0.403 0.413 0.430 0.424 SPOT5 0.371 0.378 0.366 0.359 0.366 0.360 0.357 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 1449 1514 1451 1430 1484 1392 1462 AMTB 563 576 552 604 592 577 619 ARFB 453 422 362 446 442 438 451 ASDB 357 352 369 364 372 346 335 BETB 447 413 359 456 424 349 444 CADB 503 527 459 409 556 475 493 CICB 490 494 443 408 490 448 486 CROB 521 445 471 524 524 550 494 DIOB 450 424 460 512 516 474 444 DJIB 516 439 480 475 456 499 434 EVEB 222 265 309 266 273 271 248 FAIB o 1075 1028 1075 1020 1089 1041 1077 FUTB 344 417 402 413 356 434 423 GAVB 254 268 201 208 204 223 226 GREB 513 525 567 598 478 541 595 HEMB 345 378 482 334 353 410 378 JIUB 599 503 568 591 535 554 592 KIUB 649 628 636 657 630 640 648 KOLB 636 628 550 552 603 582 622 KRUB 379 494 438 319 418 396 439 LICB 442 464 388 364 445 413 370 MAHB 428 379 310 414 399 396 395 MALB 0 0 0 0 465 385 453 MANB o 474 479 420 466 474 470 436 MATB 521 472 589 582 552 560 540 METB 710 709 679 728 724 719 746 MIAB 467 503 469 401 495 492 463 MONB 563 544 575 578 590 568 599 MORB 555 450 435 584 419 501 527 MSPB 33 110 99 338 495 566 599 NOWB 451 405 415 327 367 375 304 PAQB 0 0 0 26 111 180 192 REUB 410 399 385 448 457 428 455 REZB 663 708 762 724 705 726 764 RIKB 461 438 542 509 505 494 488 RIPB 758 705 657 699 698 755 712 ROTB 1428 1418 1483 1446 1378 1412 1378 SALB 413 456 563 506 537 499 473 SANB 474 552 482 476 522 550 586 SCRB 471 467 495 455 460 443 500 SODB o 202 202 193 167 251 210 384 SPJB 1518 1481 1583 1550 1487 1535 1497 STJB 631 680 677 741 640 745 705 SYPB 1458 1530 1483 1525 1463 1483 1507 THUB 1333 1392 1308 1375 1395 1429 1329 TLHA 565 551 483 528 568 571 620 TRIB o 514 520 553 491 572 527 424 YASB 450 601 647 542 577 552 576 YELB 912 870 823 903 904 908 892 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 3867 1591 1718 3265 AMTB 1368 788 888 1194 ARFB 1104 478 568 970 ASDB 880 446 502 831 BETB 964 595 662 854 CADB 1076 772 725 994 CICB 1039 676 752 952 CROB 1346 603 613 1088 DIOB 908 786 783 883 DJIB 1085 710 775 904 EVEB 493 322 378 737 FAIB 2855 1054 1236 2548 FUTB 1085 485 516 934 GAVB 845 0 0 825 GREB 1366 654 697 1220 HEMB 1015 419 499 879 JIUB 1399 816 881 992 KIUB 1465 1039 1112 1182 KOLB 1318 902 1097 1013 KRUB 1045 569 712 874 LICB 1022 552 603 865 MAHB 1063 512 438 915 MALB 423 324 272 334 MANB 1094 610 682 988 MATB 1335 581 860 1173 METB 1877 742 826 1759 MIAB 1167 567 618 1091 MONB 1337 831 836 1106 MORB 1199 750 735 937 MSPB 679 654 364 615 NOWB 1027 269 534 978 PAQB 0 194 303 26 REUB 1056 472 666 919 REZB 2160 579 630 1874 RIKB 1175 742 734 950 RIPB 2135 615 631 1765 ROTB 3855 1499 1637 3242 SALB 1166 779 793 938 SANB 1216 678 717 1183 SCRB 1172 619 710 922 SODB 265 563 592 228 SPJB 3898 1606 1910 3502 STJB 1560 1003 994 1397 SYPB 3931 1728 1782 3295 THUB 3239 1687 1836 3047 TLHA 1608 509 659 1271 TRIB 1133 768 838 1082 YASB 1228 798 931 1153 YELB 2596 861 831 2132 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 13.1 19.3 15.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -16.5 +- 2.2 mm TY = 12.2 +- 2.2 mm TZ = 21.3 +- 2.0 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.5 +- 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 1.28 0.63 ============================================================== Cliquez sur l'url suivante https://www.mailcontrol.com/sr/QpqK!UR2+Et7Qv79X0o3wzhl!+zjuCEhdl!IKrC98ii9MRv+7mZibmIpLTQtKuGv2X+M5vyEiNW4972AAHV4uhC6Txvj9ajymrAiCPp7FtW8BMrsjsqyvU2fjZDyw7HBLpBErKSal3IyG5t9sFuWZRU2uNokP2Y1NL!94xecrbBOHdHcOGcDjii!EH11+RTTmIKFWq9W+pS49bGD!zSdgjmTLTqwMlDR si ce message est indésirable (pourriel). Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr