****************************************************************************** dorisreport 24-Oct-2005 22:39:07 Message No 0387 ****************************************************************************** Author: Pascal Willis Subject: IGN/JPL DORIS Report for week 1340 = 05254 ============================================================== Summary report for weekly DORIS IGN/JPL Analysis solution GPS week number: 1340 from 11-09-2005 to 17-09-2005 DORIS name (using day of start): 05254 Days of year: from 2005/254 to 2005/260 ============================================================== 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/ign05254wd05.snx.Z weekly sinex in ITRF2000 pub/doris/products/sinex_series/ignwd/ign05254wd04.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 4) Global Statistics ==================== GPS week number 1340 from 11-09-2005 to 17-09-2005 Total number of stations = 48 Total number of satellites = 4 Combinations (daily to weekly) CHI2 / DOF = 4.31 The following table only counts DORIS data that have passed CNES preprocesing step Individual daily DORIS statistics Day total_obs rejected valid_obs %_rejected -------------------------------------------------------- 11-09-2005 24546 149 24397 0.6 12-09-2005 24572 46 24526 0.2 13-09-2005 24898 35 24863 0.1 14-09-2005 24234 29 24205 0.1 15-09-2005 25349 39 25310 0.2 16-09-2005 24942 46 24896 0.2 17-09-2005 25101 34 25067 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 7539 7107 7487 6971 7281 7275 7551 SPOT2 4795 4803 4764 4687 5258 5018 4549 SPOT4 4683 4835 4993 5043 5352 4920 5127 SPOT5 7380 7781 7619 7504 7419 7683 7840 5.2) Doppler residuals per satellite in mm/s -------------------------------------------- day1 day2 day3 day4 day5 day6 day7 -------------------------------------------------------------- ENVISAT 0.448 0.449 0.432 0.427 0.425 0.443 0.431 SPOT2 0.500 0.459 0.449 0.443 0.442 0.434 0.450 SPOT4 0.438 0.428 0.442 0.439 0.446 0.435 0.422 SPOT5 0.406 0.399 0.372 0.379 0.377 0.387 0.387 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 1444 1419 1393 1371 1427 1437 1374 AMTB 168 102 111 117 111 68 104 ASDB 354 300 251 235 286 352 325 BEMB 1600 1523 1461 1647 1662 1586 1547 CADB 526 571 489 482 505 483 556 CICB 484 457 440 370 459 410 463 CROB 427 440 353 290 434 351 410 DIOA o 448 496 481 438 485 0 0 DJIB 162 143 172 142 161 169 153 EASB 421 445 384 407 453 445 457 EVEB 239 201 251 218 286 263 239 FAIB o 950 932 1040 947 1033 1006 948 FUTB 274 271 371 346 364 438 423 GREB 149 0 0 0 0 0 0 HEMB 257 316 353 307 291 399 273 JIUB 497 307 386 326 296 253 340 KIUB 555 522 546 588 575 547 579 KOLB 362 518 456 424 467 509 450 KRAB o 305 226 193 67 84 74 105 KRUB 0 0 196 352 459 453 410 LIBB 407 355 464 379 358 380 369 MALB 507 382 490 490 334 520 460 MANB o 399 452 377 390 386 397 373 MATB 483 412 393 457 441 486 398 METB 641 644 683 647 636 622 680 MIAB 416 419 406 468 475 451 453 MORB 440 406 388 518 425 373 531 MSPB 449 459 534 561 552 427 474 NOWB 334 499 374 341 378 359 345 PAQB 337 485 439 417 424 472 487 PDMB 173 296 277 257 235 443 399 REUB 495 410 385 472 421 417 462 REZB 507 579 614 468 534 521 583 RIPB 639 541 611 601 655 635 651 ROTB 1108 1209 1176 1115 1063 1134 1142 SAKB 245 152 243 241 233 316 317 SALB 0 84 184 16 0 0 0 SANB 552 517 494 431 536 494 559 SCRB 323 309 468 390 424 315 362 SODB o 498 364 466 516 475 497 499 SPJB 1458 1502 1482 1477 1461 1617 1516 STJB 494 579 610 568 603 429 616 SYPB 1302 1275 1329 1272 1409 1341 1264 THUB 614 755 604 741 806 798 745 TLHA 459 536 509 229 442 473 543 TRIB o 401 558 303 466 442 476 477 YASB 405 472 533 439 537 533 417 YELB 868 764 777 844 865 807 855 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 3429 2041 2024 2965 AMTB 192 10 209 402 ASDB 720 389 428 743 BEMB 3923 2075 2140 4303 CADB 1184 778 844 1094 CICB 1036 655 714 1185 CROB 923 451 616 950 DIOA 736 512 557 713 DJIB 136 578 300 124 EASB 798 894 870 853 EVEB 414 371 371 620 FAIB 2510 1179 1146 2875 FUTB 920 491 417 880 GREB 106 0 0 69 HEMB 748 446 439 893 JIUB 595 503 653 883 KIUB 1341 836 961 1146 KOLB 1032 735 766 1141 KRAB 166 487 176 251 KRUB 661 381 428 630 LIBB 883 544 663 1019 MALB 1031 829 751 862 MANB 952 466 596 978 MATB 1248 435 586 1063 METB 1704 787 762 1593 MIAB 1083 551 710 997 MORB 1064 647 715 919 MSPB 1227 703 752 1034 NOWB 1148 386 303 1064 PAQB 1000 516 895 1126 PDMB 583 474 541 785 REUB 1040 683 651 960 REZB 1480 436 679 1499 RIPB 1544 857 832 1474 ROTB 3139 1211 1417 2828 SAKB 258 864 473 270 SALB 88 63 48 110 SANB 1157 720 827 1422 SCRB 844 525 650 806 SODB 974 785 853 1137 SPJB 3231 2321 2323 3438 STJB 1258 832 921 1215 SYPB 3403 1503 1629 3761 THUB 1417 1603 1101 1225 TLHA 1311 469 528 1369 TRIB 868 684 742 1187 YASB 1018 806 813 961 YELB 2236 946 913 2508 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 14.5 22.1 21.0 7.2) Geocenter estimation -------------------------- Geocenter estimation as provided by 7-parameter transformation to ign04d02 TX = -20.4 +- 2.5 mm TY = 8.2 +- 1.8 mm TZ = 62.0 +- 1.9 mm 7.3) Scale factor ----------------- Scale factor / ITRF2000 using reference ign04d02 S = -4.3 +- 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 4.58 1.92 ============================================================== Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr