****************************************************************************** dorisreport 05-Jul-2007 15:48:43 Message No 0923 ****************************************************************************** Author: WILLIS Pascal Subject: IGN/JPL DORIS Report for week 1429 = 07147 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1429 from 27-05-2007 to 02-06-2007 DORIS name (using day of start): 07147 Days of year: from 2007/147 to 2007/153 ============================================================== 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/ign07147wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign07147wd04.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 1429 from 27-05-2007 to 02-06-2007 Total number of stations = 53 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 1.76 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 27-05-2007 23535 12 23523 0.1 28-05-2007 23768 6 23762 0.0 29-05-2007 23968 1 23967 0.0 30-05-2007 22047 3 22044 0.0 31-05-2007 22391 0 22391 0.0 01-06-2007 22784 9 22775 0.0 02-06-2007 22462 3 22459 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 6573 6831 6836 4948 5250 5220 5045 SPOT2 4347 4358 4016 4174 4258 4548 4500 SPOT4 5049 5091 5315 5248 5143 5216 5125 SPOT5 7554 7482 7800 7674 7740 7791 7789 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.435 0.408 0.408 0.409 0.386 0.382 0.412 SPOT2 0.427 0.438 0.445 0.420 0.426 0.440 0.417 SPOT4 0.436 0.438 0.435 0.442 0.437 0.432 0.434 SPOT5 0.392 0.376 0.375 0.370 0.377 0.372 0.382 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 1424 1401 1394 1307 1297 1254 1267 AMUB 0 0 173 174 267 221 487 ARFB 434 423 415 388 298 385 330 ASDB 316 328 376 234 363 271 317 BEMB 1667 1642 1613 1439 1328 1372 1237 BETB 397 446 436 377 313 373 380 CADB 432 525 491 415 429 451 415 CHAB 741 669 667 588 635 657 589 CICB 468 504 398 432 462 406 392 CRPB 312 284 345 309 219 273 305 DIOB 456 519 489 362 394 489 406 DJIB 455 426 480 404 405 411 429 EASB 519 410 471 422 419 449 460 EVEB 269 265 265 218 281 299 186 FAIB o 992 1035 989 977 855 814 801 FUTB 415 398 393 384 291 358 378 GAVB 186 0 250 205 172 118 191 GREB 533 453 509 495 449 466 447 HBMB 504 562 470 489 416 396 416 HEMB 386 320 366 334 283 322 401 JIUB 511 516 510 478 452 421 423 KETB 643 501 511 511 503 469 431 KIUB 597 635 631 587 470 506 575 KOLB 518 609 616 527 579 471 395 KRUB 418 492 392 358 348 395 362 LICB 404 507 403 355 442 370 384 MAHB 368 377 328 330 277 318 327 MALB 423 475 346 412 302 409 412 MANB o 456 443 480 400 372 375 363 MATB 534 520 463 474 430 520 432 METB 722 709 691 678 599 745 637 MIAB 403 456 520 419 447 459 333 MONB 592 571 558 581 442 455 535 MORB 490 388 432 366 425 432 404 MSPB 526 554 554 451 511 461 464 NOWB 318 394 440 235 242 306 231 PDMB 10 14 0 12 11 0 48 REUB 403 378 330 359 467 351 334 REZB 735 750 792 576 652 521 660 RIKB 467 394 409 428 379 383 406 RIPB 625 672 612 512 507 525 512 ROTB 1104 1051 1096 901 815 836 898 SALB 518 541 475 274 384 468 556 SANB 476 537 608 536 516 404 372 SCRB 483 513 468 446 463 379 432 SODB o 466 507 458 384 376 351 369 SPJB 1513 1403 1443 1301 1207 1264 1287 STJB 0 0 0 0 13 277 0 SYPB 1297 1278 1268 1227 1178 1257 1097 THUB 1383 1397 1363 1134 1040 1156 1188 TLHA 543 558 613 443 465 413 411 TRIB o 546 511 564 371 447 483 475 YASB 559 510 557 540 503 550 443 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 3307 1583 1699 3192 AMUB 1042 595 656 1145 ARFB 828 480 506 964 ASDB 644 421 544 824 BEMB 3211 1577 1920 3945 BETB 752 609 726 873 CADB 877 694 749 1003 CHAB 1267 945 1143 1356 CICB 897 657 742 1004 CRPB 724 268 368 860 DIOB 755 819 827 861 DJIB 921 586 749 975 EASB 901 760 939 1018 EVEB 399 409 397 730 FAIB 2011 1074 1178 2613 FUTB 853 486 545 969 GAVB 595 1 2 687 GREB 1121 575 647 1231 HBMB 923 637 791 1056 HEMB 895 358 479 872 JIUB 963 639 866 1151 KETB 1126 685 780 1115 KIUB 1020 1049 1099 1246 KOLB 1041 828 990 1033 KRUB 793 544 693 907 LICB 941 541 676 922 MAHB 783 387 471 922 MALB 722 587 743 886 MANB 973 569 616 943 MATB 1071 614 716 1161 METB 1654 751 847 1804 MIAB 1032 612 623 995 MONB 1119 721 862 1162 MORB 822 623 716 934 MSPB 1031 769 735 1149 NOWB 629 327 486 829 PDMB 83 57 0 3 REUB 876 428 553 946 REZB 1717 561 763 1976 RIKB 916 531 644 969 RIPB 1480 489 602 1579 ROTB 2439 744 845 2959 SALB 825 592 966 994 SANB 980 746 710 1127 SCRB 1007 614 744 962 SODB 905 587 609 1028 SPJB 2974 1451 1780 3559 STJB 344 405 381 507 SYPB 2974 1311 1493 3151 THUB 2505 1472 1866 3114 TLHA 1163 465 683 1322 TRIB 851 770 946 1020 YASB 1049 822 903 1062 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 17.9 16.3 18.5 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -31.7 +- 2.3 mm TY = 27.3 +- 2.3 mm TZ = 23.8 +- 2.2 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -1.9 +- 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 1.49 0.85 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr