****************************************************************************** dorisreport 05-Jul-2007 15:48:42 Message No 0923 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1430 = 07154 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1430 from 03-06-2007 to 09-06-2007 DORIS name (using day of start): 07154 Days of year: from 2007/154 to 2007/160 ============================================================== 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/ign07154wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07154wd04.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.E. Bar-Sever, G. Tavernier (2005), DORIS as a potential part of a Global Geodetic Observing System, J. Geodyn., 40(4-5), 494-501, DOI: 10.1016/j.jog.2005.06.011 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 1430 from 03-06-2007 to 09-06-2007 Total number of stations = 53 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.83 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 03-06-2007 22482 12 22470 0.1 04-06-2007 23154 4297 18857 18.6 05-06-2007 24427 11 24416 0.0 06-06-2007 23442 1 23441 0.0 07-06-2007 24711 3 24708 0.0 08-06-2007 24403 6 24397 0.0 09-06-2007 24309 10 24299 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 5094 5805 6780 6738 7003 6878 6702 SPOT2 4194 0 4621 3788 4574 4403 4258 SPOT4 5280 5251 5292 5194 5218 5146 5396 SPOT5 7902 7801 7723 7721 7913 7970 7943 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.393 0.415 0.428 0.417 0.413 0.405 0.405 SPOT2 0.4174200000.000 0.465 0.438 0.427 0.430 0.428 SPOT4 0.411 0.422 0.421 0.432 0.459 0.443 0.432 SPOT5 0.373 0.371 0.365 0.380 0.373 0.374 0.374 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 1236 1437 1417 1258 1464 1357 1491 AMUB 454 466 452 466 452 453 431 ARFB 403 444 391 389 455 413 437 ASDB 345 336 349 387 328 374 319 BEMB 1253 1362 1704 1760 1654 1590 1670 BETB 379 367 401 453 444 358 408 CADB 420 428 430 464 522 520 557 CHAB 651 603 705 722 754 696 657 CICB 421 383 480 420 468 442 460 CRPB 160 303 342 375 438 351 380 DIOB 419 427 431 544 502 490 417 DJIB 402 372 447 463 459 410 460 EASB 407 397 523 480 409 425 427 EVEB 196 255 276 274 276 237 236 FAIB o 819 893 1096 929 1023 956 1064 FUTB 374 324 399 407 404 343 407 GAVB 192 142 118 153 233 245 257 GREB 465 467 489 504 473 489 451 HBMB 347 354 434 482 485 493 476 HEMB 186 344 387 352 224 384 356 JIUB 550 369 528 500 536 547 533 KETB 484 505 595 556 471 573 532 KIUB 493 554 599 537 619 621 524 KOLB 586 578 587 549 591 557 620 KRUB 296 420 415 399 424 445 463 LICB 437 420 445 365 482 428 397 MAHB 369 324 139 394 384 336 385 MALB 360 427 492 388 366 465 461 MANB o 405 435 448 416 441 474 454 MATB 406 505 447 537 476 480 453 METB 639 704 732 680 727 710 695 MIAB 385 534 508 403 507 468 425 MONB 541 484 525 537 574 560 541 MORB 500 321 416 514 352 487 498 MSPB 497 558 612 531 531 505 595 NOWB 265 343 375 270 383 346 342 PAQB 0 0 0 252 474 442 533 PDMB 28 35 14 0 11 15 41 REUB 479 355 327 408 419 327 434 REZB 494 647 781 608 764 798 678 RIKB 311 406 511 491 416 476 373 RIPB 638 550 546 629 578 640 639 ROTB 720 992 1201 986 1070 1163 1106 SALB 396 312 531 512 486 592 513 SANB 509 524 489 446 546 547 558 SCRB 390 413 463 497 480 476 453 SODB o 455 380 350 429 440 407 478 SPJB 1319 1344 1512 1406 1509 1457 1514 SYPB 1127 1324 1288 1283 1364 1251 1203 THUB 1102 1247 1387 1244 1424 1382 1300 TLHA 451 599 618 525 489 555 622 TRIB o 425 473 545 516 561 508 476 YASB 395 532 648 478 559 506 516 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 3662 1414 1674 3255 AMUB 1133 477 621 1109 ARFB 1033 462 565 980 ASDB 850 443 519 855 BEMB 3924 1581 1962 3969 BETB 887 621 674 869 CADB 1010 615 849 1024 CHAB 1475 943 1173 1349 CICB 961 634 782 984 CRPB 951 274 367 897 DIOB 965 808 763 913 DJIB 995 602 753 930 EASB 1005 715 844 996 EVEB 455 322 387 735 FAIB 2389 1005 1256 2559 FUTB 1033 456 529 904 GAVB 604 1 3 839 GREB 1272 461 679 1236 HBMB 1055 518 728 939 HEMB 829 341 400 822 JIUB 1272 700 888 1076 KETB 1320 604 756 1185 KIUB 1275 865 1127 1212 KOLB 1274 835 1081 1098 KRUB 1003 426 678 982 LICB 979 613 672 909 MAHB 831 381 456 859 MALB 886 575 738 924 MANB 1083 559 675 1018 MATB 1112 522 630 1202 METB 1816 725 841 1797 MIAB 1141 543 663 1095 MONB 1234 743 852 1084 MORB 1015 549 733 975 MSPB 1259 735 806 1182 NOWB 764 364 398 898 PAQB 615 323 324 542 PDMB 13 155 0 1 REUB 947 459 608 906 REZB 2016 594 708 1872 RIKB 1061 511 621 975 RIPB 1729 406 644 1626 ROTB 2808 867 813 3050 SALB 1078 653 865 953 SANB 1182 643 742 1190 SCRB 1080 527 712 943 SODB 1126 535 711 957 SPJB 3496 1490 1783 3621 SYPB 3356 1205 1538 3072 THUB 2947 1515 1862 3080 TLHA 1523 529 789 1335 TRIB 1043 801 789 1117 YASB 1171 659 888 1081 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 16.7 22.3 16.6 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -34.4 +- 2.3 mm TY = 18.1 +- 2.3 mm TZ = 35.4 +- 2.1 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 1.69 0.84 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr