****************************************************************************** dorisreport 29-Sep-2006 22:11:53 Message No 0696 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1390 = 06239 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1390 from 27-08-2006 to 02-09-2006 DORIS name (using day of start): 06239 Days of year: from 2006/239 to 2006/245 ============================================================== 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/ign06239wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06239wd04.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 1390 from 27-08-2006 to 02-09-2006 Total number of stations = 50 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.92 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 27-08-2006 22917 12 22905 0.1 28-08-2006 22603 18 22585 0.1 29-08-2006 22934 26 22908 0.1 30-08-2006 22992 35 22957 0.2 31-08-2006 22770 6 22764 0.0 01-09-2006 23035 8 23027 0.0 02-09-2006 22950 11 22939 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 6400 6477 6471 6361 6355 6368 6383 SPOT2 4527 4668 4758 4538 4370 4528 4719 SPOT4 4964 4804 4849 4873 4896 4948 4937 SPOT5 7014 6636 6830 7185 7143 7183 6900 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.407 0.423 0.401 0.429 0.402 0.402 0.408 SPOT2 0.412 0.412 0.415 0.471 0.434 0.424 0.401 SPOT4 0.423 0.418 0.414 0.422 0.418 0.419 0.455 SPOT5 0.365 0.383 0.362 0.355 0.373 0.358 0.361 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 1492 1447 1409 1419 1455 1389 1452 AMTB 495 478 473 506 444 472 496 ARFB 138 142 138 127 166 129 141 ASDB 352 252 365 352 365 339 288 CADB 503 464 451 476 509 491 490 CHAB 690 657 700 437 0 0 0 CICB 515 476 449 459 496 437 497 CROB 372 331 342 367 286 358 354 DIOB 344 414 383 472 462 407 416 DJIB 478 423 488 467 465 379 446 EASB 427 463 544 476 435 454 496 EVEB 235 296 265 238 202 251 259 FAIB o 1027 1016 1027 1023 1020 1061 1098 FUTB 437 373 425 515 430 440 429 GAVB 243 235 205 212 239 245 239 GREB 523 450 420 535 490 421 518 HBKB 536 433 511 512 452 444 538 HEMB 323 378 471 334 248 51 0 JIUB 331 282 441 540 465 523 402 KESB 337 339 386 255 526 560 562 KIUB 580 567 585 638 565 568 586 KOLB 635 623 525 557 596 566 555 KRUB 496 480 466 358 514 470 452 LICB 464 457 374 416 325 394 398 MAHB 371 345 189 358 377 291 360 MALB 422 437 438 375 361 391 464 MATB 452 436 478 490 488 485 464 METB 693 697 674 720 724 732 712 MIAB 402 435 389 413 491 497 407 MONB 537 475 539 549 560 529 516 MORB 586 445 481 535 431 532 538 NOWB 470 462 395 438 438 462 400 PAQB 578 521 515 524 535 518 519 PDMB 478 483 561 456 459 536 452 REUB 362 393 349 394 420 333 351 REZB 720 717 588 628 560 707 660 RIPB 724 713 658 680 707 736 672 ROTB 1401 1418 1435 1435 1316 1377 1443 SALB 425 398 597 422 459 516 439 SANB 543 493 486 488 533 541 531 SCRB 447 470 490 489 418 442 532 SODB o 0 0 399 510 483 392 468 SPJB 1487 1429 1570 1512 1549 1524 1478 STJB 0 0 0 0 18 615 572 SYPB 1423 1513 1459 1426 1516 1426 1515 THUB 1249 1299 1363 1373 1317 1427 1373 TLHA 582 505 479 537 540 559 514 TRIB o 464 552 477 486 573 485 463 YASB 457 622 633 552 564 588 510 YELB 807 768 764 813 812 741 812 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 3876 1594 1717 3203 AMTB 1193 647 661 1075 ARFB 1046 0 0 0 ASDB 830 442 489 709 CADB 1157 685 819 910 CHAB 800 516 584 678 CICB 1119 698 823 911 CROB 1003 340 356 827 DIOB 919 750 693 713 DJIB 1077 687 711 909 EASB 1115 750 875 921 EVEB 488 277 347 693 FAIB 2787 1119 1221 2461 FUTB 1180 575 672 837 GAVB 872 0 0 873 GREB 1305 474 724 1059 HBKB 1355 683 600 966 HEMB 674 337 294 611 JIUB 1424 685 636 594 KESB 1152 527 558 885 KIUB 1368 931 985 1140 KOLB 1273 945 1076 1043 KRUB 1148 675 622 961 LICB 1033 540 539 880 MAHB 853 361 421 814 MALB 895 690 642 867 MATB 1160 511 706 1104 METB 1872 723 875 1719 MIAB 1118 566 509 1063 MONB 1325 705 811 1068 MORB 1212 796 835 928 NOWB 1156 520 541 1034 PAQB 1227 915 881 950 PDMB 1206 639 679 1094 REUB 919 521 513 830 REZB 1939 622 542 1673 RIPB 2122 604 617 1729 ROTB 3817 1487 1548 3258 SALB 1120 672 674 982 SANB 1251 711 731 1130 SCRB 1207 658 649 936 SODB 843 423 430 689 SPJB 3915 1646 1902 3420 STJB 419 233 268 344 SYPB 3775 1791 1821 3230 THUB 3339 1662 1800 2887 TLHA 1635 493 611 1156 TRIB 1157 732 797 1039 YASB 1296 835 860 1176 YELB 1863 764 922 2131 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 12.9 16.2 16.9 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -25.8 +- 1.9 mm TY = 23.6 +- 1.9 mm TZ = 50.5 +- 1.7 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.7 +- 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 1.23 0.64 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr