****************************************************************************** dorisreport 09-Mar-2006 19:18:44 Message No 0526 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1360 = 06029 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1360 from 29-01-2006 to 04-02-2006 DORIS name (using day of start): 06029 Days of year: from 2006/29 to 2006/35 ============================================================== 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/ign06029wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign06029wd04.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 1360 from 29-01-2006 to 04-02-2006 Total number of stations = 49 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.88 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 29-01-2006 23195 9 23186 0.0 30-01-2006 21723 15 21708 0.1 31-01-2006 23343 17 23326 0.1 01-02-2006 23256 11 23245 0.0 02-02-2006 23978 15 23963 0.1 03-02-2006 24607 12 24595 0.0 04-02-2006 24320 14 24306 0.1 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 6541 6833 6595 6296 6672 6935 6761 SPOT2 4446 4887 4488 4780 4938 4805 4774 SPOT4 4806 2371 4958 4965 5076 5126 5223 SPOT5 7393 7617 7285 7204 7277 7729 7548 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.394 0.400 0.395 0.388 0.398 0.399 0.389 SPOT2 0.441 0.419 0.416 0.415 0.405 0.419 0.413 SPOT4 0.413 0.404 0.411 0.424 0.417 0.412 0.418 SPOT5 0.353 0.364 0.352 0.353 0.349 0.363 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 1441 1298 1426 1388 1406 1400 1359 AMTB 446 457 479 501 445 523 469 ASDB 291 313 287 301 385 355 350 BEMB 1639 1592 1648 1626 1538 1645 1609 CADB 539 484 429 434 504 436 501 CHAB 638 712 711 692 748 687 688 CICB 432 477 461 458 499 433 479 CROB 380 324 348 279 327 327 363 EASB 457 464 491 489 522 476 481 EVEB 238 268 237 268 299 227 211 FAIB o 1065 980 1047 1017 1016 990 1050 FUTB 445 474 437 438 391 413 492 GREB 486 492 508 553 486 534 492 HBKB 573 497 495 481 480 435 516 HEMB 284 317 373 287 347 419 298 JIUB 546 506 557 554 520 553 572 KESB 480 512 518 562 563 524 483 KIUB 641 637 629 601 594 657 633 KOLB 578 584 498 580 596 439 572 KRUB 416 377 356 409 446 392 375 LICB 468 474 411 345 350 439 430 MAHB 205 409 281 385 408 361 226 MALB 465 465 430 465 364 449 469 MANB o 270 347 339 455 367 414 399 MATB 425 492 441 468 454 492 433 METB 737 783 781 802 794 770 818 MIAB 424 480 481 426 415 482 402 MONB 524 563 562 536 557 504 610 MORB 413 410 435 508 441 465 478 MSPB 568 392 599 580 516 536 497 NOWB 348 387 404 310 350 388 304 PAQB 507 524 482 513 539 508 577 PDMB 404 445 589 436 507 565 407 REUB 410 402 343 404 366 294 402 REZB 679 660 735 664 605 772 644 RIPB 621 577 621 583 597 597 679 ROTB 1088 1186 1130 1184 1041 1106 1119 SALB 387 335 473 371 488 532 476 SANB 590 554 539 588 555 570 583 SCRB 0 0 0 242 489 480 532 SODB o 495 426 427 499 432 425 472 SPJB 1445 1422 1541 1499 1520 1494 1508 STJB 41 622 640 608 540 675 579 SYPB 1242 1368 739 509 1340 1342 1350 THUB 1374 1358 1201 1315 1323 1405 1216 TLHA 569 605 183 0 0 512 568 TRIB o 479 567 437 432 540 523 470 YASB 433 554 581 560 546 569 469 YELB 906 916 864 870 892 795 910 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 3742 1633 1660 2966 AMTB 1231 577 645 1094 ASDB 878 377 508 700 BEMB 4448 1725 1880 3625 CADB 1222 635 728 933 CHAB 1594 1120 1052 1373 CICB 1123 676 702 962 CROB 952 452 385 674 EASB 1047 901 916 911 EVEB 493 391 305 631 FAIB 2827 955 1178 2513 FUTB 1167 610 589 934 GREB 1328 600 648 1145 HBKB 1324 628 716 1020 HEMB 870 374 492 761 JIUB 1428 778 756 1101 KESB 1323 679 697 1140 KIUB 1529 982 1038 1222 KOLB 1314 754 951 1107 KRUB 1017 671 577 741 LICB 1036 613 582 895 MAHB 877 352 453 778 MALB 1039 686 704 915 MANB 1109 530 442 743 MATB 1122 549 595 1116 METB 2196 715 851 1926 MIAB 1145 615 547 992 MONB 1340 772 862 1079 MORB 1153 618 723 868 MSPB 1356 742 715 1044 NOWB 912 496 387 849 PAQB 1180 785 874 1026 PDMB 1221 596 669 1060 REUB 939 451 510 904 REZB 2062 617 614 1644 RIPB 1790 449 650 1558 ROTB 3353 928 722 3117 SALB 1120 619 669 893 SANB 1372 862 838 1192 SCRB 629 347 354 490 SODB 1194 611 591 1012 SPJB 3862 1647 1716 3491 STJB 1291 737 774 1089 SYPB 3034 1218 1281 2610 THUB 3225 1620 1631 2982 TLHA 996 301 472 766 TRIB 1081 838 805 957 YASB 1277 860 792 1005 YELB 2629 744 907 2092 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 14.9 21.2 17.1 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -16.6 +- 1.8 mm TY = -4.8 +- 1.7 mm TZ = 11.8 +- 1.7 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -2.7 +- 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 1.53 0.38 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr