****************************************************************************** dorisreport 05-Jan-2006 17:47:21 Message No 0464 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Updated Report for week 1330 = 05184 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1330 from 03-07-2005 to 09-07-2005 DORIS name (using day of start): 05184 Days of year: from 2005/184 to 2005/190 ============================================================== 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/ign05184wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05184wd04.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 1330 from 03-07-2005 to 09-07-2005 Total number of stations = 44 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 2.30 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 03-07-2005 24493 32 24461 0.1 04-07-2005 24365 18 24347 0.1 05-07-2005 19939 17 19922 0.1 06-07-2005 25145 27 25118 0.1 07-07-2005 24781 19 24762 0.1 08-07-2005 24418 50 24368 0.2 09-07-2005 23558 31 23527 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 7474 7466 7086 7628 7561 7377 6811 SPOT2 4604 4513 18 4778 4430 4447 4251 SPOT4 5094 5060 5008 4966 4888 4977 4994 SPOT5 7289 7308 7810 7746 7883 7567 7471 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.440 0.443 0.431 0.437 0.439 0.445 0.436 SPOT2 0.442 0.432 0.178 0.432 0.443 0.461 0.449 SPOT4 0.437 0.433 0.428 0.414 0.445 0.437 0.447 SPOT5 0.394 0.391 0.398 0.393 0.393 0.384 0.388 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 1405 1532 1133 1430 1457 1386 1385 AMTB 210 199 211 181 157 176 193 ASDB 117 128 159 182 0 0 0 CADB 435 456 363 559 559 470 462 CICB 471 464 340 373 384 364 377 CROB 364 360 352 416 404 396 373 DIOA o 217 516 262 455 497 491 407 DJIB 182 182 126 211 201 190 187 EASB 468 490 345 428 395 490 487 EVEB 278 299 168 222 256 277 306 FAIB o 947 945 884 960 939 1018 962 FUTB 414 425 369 446 425 426 474 GREB 522 441 388 403 401 381 362 HBKB 429 404 375 508 401 360 424 HEMB 302 335 279 329 273 399 387 JIUB 507 386 335 522 412 394 479 KIUB 571 524 422 541 558 486 552 KOLB 497 462 394 537 526 408 415 KRAB o 783 685 622 643 543 561 436 KRUB 433 484 293 403 484 472 453 LIBB 0 0 153 445 361 360 278 MANB o 379 390 291 395 427 359 329 MATB 485 424 375 396 417 494 379 METB 656 680 543 628 672 645 524 MIAB 467 476 308 331 499 365 418 MORB 498 467 322 536 463 416 574 MSPB 605 585 512 529 603 554 618 PAQB 528 475 381 522 520 446 362 PDMB 456 494 425 488 458 521 395 REUB 410 314 326 421 347 363 326 REZB 565 438 605 477 577 672 631 RIPB 679 705 538 679 605 679 519 ROTB 1197 1044 893 1029 1130 1186 1267 SAKB 705 614 490 726 691 667 801 SANB 500 517 390 566 555 425 525 SODB o 548 458 401 565 440 504 447 SPJB 1475 1512 1243 1554 1471 1486 1363 STJB 109 100 0 371 420 378 324 SYPB 1369 1348 1089 1309 1348 1331 1144 THUB 1171 1284 1080 1194 1130 1154 1141 TLHA 449 460 427 505 506 501 422 TRIB o 412 557 331 443 533 490 425 YASB 475 545 350 416 549 553 466 YELB 834 795 675 891 818 755 809 6.2) stations rejected from solution ------------------------------------ all available stations were processed and given in the output sinex solutions 809 Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr