BULLETIN B 205 (IAU 2000) 2 march 2005 ============================================================================== Following IAU Conventions 2000, IERS provides new products dX, dY, celestial pole offsets with respect to the new IAU2000A Precession-Nutation theory. The present Bulletin B version includes the celestial pole offsets dX, dY: dX = X_obs - X_IAU2000A and dY = Y_obs - Y_IAU2000A where X_obs, Y_obs are the observed coordinates of the Celestial Intermediate Pole (CIP) in the Geocentric Celestial Reference System, and X_IAU2000A, Y_IAU2000A are the celestial pole coordinates provided by using the IAU2000A Precession-Nutation theory. The current Bulletin B including (dpsi,deps)_1980 will be maintained until December 2004. For more details refer to IERS Messages 38, on IAU 2000 Resolution Compliancy Information. ============================================================================== Contents are described in the Explanatory Supplement available at http://hpiers.obspm.fr/eop-pc/ 1 - EARTH ORIENTATION PARAMETERS (IERS evaluation). The values in this section are samplings of section 2 given at five-day intervals. Date MJD x y UT1R-UTC UT1R-TAI dX dY 2005 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. JAN 4 53374 0.14846 0.23466 -0.506278 -32.506278 0.00 -0.55 JAN 9 53379 0.14193 0.22669 -0.508386 -32.508386 0.31 -0.21 JAN 14 53384 0.13198 0.22084 -0.511373 -32.511373 0.11 -0.50 JAN 19 53389 0.12416 0.21552 -0.514587 -32.514587 0.04 -0.39 JAN 24 53394 0.11248 0.21135 -0.517944 -32.517944 -0.01 -0.38 JAN 29 53399 0.10077 0.20877 -0.520240 -32.520240 0.09 -0.21 FEB 3 53404 0.08667 0.20685 -0.522104 -32.522104 -0.07 -0.36 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. FEB 8 53409 0.07314 0.20526 -0.525109 -32.525109 0.09 -0.41 FEB 13 53414 0.05918 0.20290 -0.529230 -32.529230 -0.13 -0.27 FEB 18 53419 0.04590 0.20309 -0.533704 -32.533704 0.00 0.00 FEB 23 53424 0.03323 0.20604 -0.539386 -32.539386 0.00 0.00 FEB 28 53429 0.02584 0.20978 -0.545725 -32.545725 0.00 0.00 MAR 5 53434 0.01611 0.21349 -0.551792 -32.551792 0.00 0.00 MAR 10 53439 0.00603 0.21760 -0.557331 -32.557331 0.00 0.00 MAR 15 53444 -0.00408 0.22247 -0.562519 -32.562519 0.00 0.00 MAR 20 53449 -0.01392 0.22802 -0.567417 -32.567417 0.00 0.00 MAR 25 53454 -0.02343 0.23423 -0.572102 -32.572102 0.00 0.00 MAR 30 53459 -0.03254 0.24103 -0.576595 -32.576595 0.00 0.00 APR 4 53464 -0.04120 0.24839 -0.580921 -32.580921 0.00 0.00 APR 9 53469 -0.04937 0.25626 -0.585087 -32.585087 0.00 0.00 APR 14 53474 -0.05701 0.26458 -0.589085 -32.589085 0.00 0.00 APR 19 53479 -0.06409 0.27330 -0.592899 -32.592899 0.00 0.00 APR 24 53484 -0.07057 0.28237 -0.596508 -32.596508 0.00 0.00 APR 29 53489 -0.07645 0.29173 -0.599888 -32.599888 0.00 0.00 Note. In UT1R, the effects of zonal tides with periods shorter than 35 days are removed ; UT1-UT1R (smaller than 0.0025s in absolute value) should be added after quadratic interpolation of UT1R. Section 2 of this Bulletin gives the daily interpolation of x, y, UT1, duration of day, dX, and dY. IERS, B 205 (2) 2 - SMOOTHED VALUES OF x, y, UT1, D, dX, dY (IERS EVALUATION) at one-day intervals. For smoothing characteristics, see Table2 in the explanatory supplement. The reference system is described in the 2003 IERS Annual Report. 2005 MJD x y UT1-UTC UT1-UT1R D dX dY (0 h UTC) " " s ms ms 0.001" 0.001" JAN 4 53374 0.14846 0.23466 -0.505848 0.429 0.878 0.00 -0.55 JAN 5 53375 0.14805 0.23313 -0.506743 0.013 0.794 0.00 -0.30 JAN 6 53376 0.14695 0.23163 -0.507404 -0.282 0.575 -0.01 -0.28 JAN 7 53377 0.14514 0.22974 -0.507874 -0.374 0.385 0.05 -0.40 JAN 8 53378 0.14352 0.22780 -0.508177 -0.237 0.202 0.21 -0.40 JAN 9 53379 0.14193 0.22669 -0.508308 0.078 0.178 0.31 -0.21 JAN 10 53380 0.13996 0.22544 -0.508582 0.450 0.213 0.24 -0.12 JAN 11 53381 0.13739 0.22431 -0.508786 0.724 0.360 0.10 -0.33 JAN 12 53382 0.13537 0.22301 -0.509334 0.775 0.705 0.05 -0.61 JAN 13 53383 0.13361 0.22182 -0.510199 0.549 0.989 0.09 -0.66 JAN 14 53384 0.13198 0.22084 -0.511286 0.087 1.146 0.11 -0.50 JAN 15 53385 0.13007 0.21963 -0.512447 -0.503 1.228 0.07 -0.46 JAN 16 53386 0.12872 0.21834 -0.513698 -1.085 1.157 0.04 -0.59 JAN 17 53387 0.12744 0.21725 -0.514728 -1.543 1.000 0.04 -0.67 JAN 18 53388 0.12584 0.21616 -0.515680 -1.800 0.845 0.04 -0.56 JAN 19 53389 0.12416 0.21552 -0.516415 -1.828 0.607 0.04 -0.39 JAN 20 53390 0.12165 0.21508 -0.516902 -1.633 0.401 0.08 -0.30 JAN 21 53391 0.11931 0.21385 -0.517232 -1.252 0.247 0.12 -0.34 JAN 22 53392 0.11718 0.21319 -0.517418 -0.738 0.126 0.08 -0.42 JAN 23 53393 0.11464 0.21223 -0.517507 -0.160 0.046 0.02 -0.42 JAN 24 53394 0.11248 0.21135 -0.517535 0.409 0.024 -0.01 -0.38 JAN 25 53395 0.11006 0.21045 -0.517579 0.894 0.088 0.01 -0.37 JAN 26 53396 0.10769 0.20951 -0.517728 1.237 0.201 0.05 -0.34 JAN 27 53397 0.10552 0.20903 -0.517989 1.400 0.355 0.07 -0.29 JAN 28 53398 0.10319 0.20895 -0.518438 1.370 0.548 0.09 -0.22 JAN 29 53399 0.10077 0.20877 -0.519074 1.166 0.630 0.09 -0.21 JAN 30 53400 0.09755 0.20872 -0.519679 0.832 0.659 0.09 -0.28 JAN 31 53401 0.09469 0.20802 -0.520366 0.434 0.769 0.07 -0.36 FEB 1 53402 0.09207 0.20836 -0.521188 0.054 0.783 0.03 -0.35 FEB 2 53403 0.08922 0.20736 -0.521904 -0.222 0.629 -0.02 -0.30 FEB 3 53404 0.08667 0.20685 -0.522426 -0.322 0.426 -0.07 -0.36 FEB 4 53405 0.08391 0.20602 -0.522753 -0.208 0.263 -0.04 -0.54 FEB 5 53406 0.08155 0.20586 -0.522971 0.096 0.176 0.08 -0.62 FEB 6 53407 0.07891 0.20556 -0.523147 0.499 0.304 0.20 -0.50 FEB 7 53408 0.07610 0.20577 -0.523631 0.860 0.443 0.20 -0.36 FEB 8 53409 0.07314 0.20526 -0.524076 1.033 0.621 0.09 -0.41 FEB 9 53410 0.07003 0.20499 -0.524891 0.922 0.989 0.01 -0.59 FEB 10 53411 0.06684 0.20408 -0.526041 0.521 1.300 -0.02 -0.61 FEB 11 53412 0.06413 0.20359 -0.527452 -0.085 1.518 -0.04 -0.41 FEB 12 53413 0.06168 0.20312 -0.529025 -0.755 1.583 -0.12 -0.26 FEB 13 53414 0.05918 0.20290 -0.530573 -1.342 1.452 -0.13 -0.27 FEB 14 53415 0.05754 0.20302 -0.531901 -1.736 1.207 -0.05 -0.31 FEB 15 53416 0.05453 0.20324 -0.532978 -1.879 0.924 0.02 -0.33 FEB 16 53417 0.05212 0.20300 -0.533756 -1.771 0.647 0.00 0.00 FEB 17 53418 0.04824 0.20278 -0.534287 -1.448 0.446 0.00 0.00 FEB 18 53419 0.04590 0.20309 -0.534671 -0.966 0.406 0.00 0.00 FEB 19 53420 0.04230 0.20367 -0.535125 -0.399 0.492 0.00 0.00 FEB 20 53421 0.04056 0.20436 -0.535680 0.179 0.580 0.00 0.00 FEB 21 53422 0.03744 0.20508 -0.536308 0.691 0.698 0.00 0.00 FEB 22 53423 0.03564 0.20561 -0.537115 1.072 0.883 0.00 0.00 FEB 23 53424 0.03323 0.20604 -0.538110 1.276 1.082 0.00 0.00 FEB 24 53425 0.03163 0.20612 -0.539310 1.280 1.236 0.00 0.00 IERS, B 205 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2005 MJD x y UT1-UTC dX dY x y UT1 dX dY (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" JAN 4 53374 0.14850 0.23465 -0.505847 0.004 -.553 0.01 0.02 0.02 0.03 0.03 JAN 9 53379 0.14194 0.22671 -0.508308 0.319 -.201 0.01 0.02 0.01 0.02 0.02 JAN 14 53384 0.13198 0.22084 -0.511287 0.137 -.432 0.01 0.01 0.02 0.03 0.03 JAN 19 53389 0.12417 0.21555 -0.516415 0.040 -.374 0.02 0.02 0.02 0.02 0.02 JAN 24 53394 0.11247 0.21136 -0.517536 -.028 -.444 0.01 0.01 0.02 0.02 0.03 JAN 29 53399 0.10077 0.20877 -0.519072 0.123 -.193 0.02 0.02 0.03 0.06 0.08 FEB 3 53404 0.08666 0.20686 -0.522424 -.097 -.372 0.02 0.02 0.02 0.03 0.03 FEB 8 53409 0.07313 0.20527 -0.524077 0.045 -.423 0.02 0.02 0.02 0.04 0.04 FEB 13 53414 0.05918 0.20291 -0.530574 -.127 -.265 0.01 0.01 0.01 0.03 0.03 FEB 18 53419 0.04589 0.20308 -0.534673 - - 0.01 0.01 0.01 - - FEB 23 53424 0.03322 0.20604 -0.538092 - - 0.02 0.02 0.05 - - 4 - DURATION OF THE DAY AND ANGULAR VELOCITY OF THE EARTH (IERS evaluation). The data of this section are smoothed, with the same characteristics as UT1R in section 1. They are corrected for the effects of zonal tides with periods up to 35 days. Section 2 gives the daily interpolation of D. Date (0h UTC) DR OmegaR 2005 MJD s (microrad/s) JAN 4 53374 0.00044 72.921 15110 JAN 9 53379 0.00055 15100 JAN 14 53384 0.00060 15096 JAN 19 53389 0.00070 15088 JAN 24 53394 0.00057 15099 JAN 29 53399 0.00036 15117 FEB 3 53404 0.00044 15110 5 - INFORMATION ON TIME SCALES No leap second was introduced in UTC on 31 December 2001. No leap second will be introduced in UTC on 31 December 1999. All information concerning time scales : announcements of the leap seconds (Bulletin C) and of the value of DUT1 (Bulletin D) can be found in our web/ftp site : World Wide Web : http://hpiers.obspm.fr Anonymous ftp : hpiers.obspm.fr or 145.238.100.28 IERS, B 205 (4) 6 - SUMMARY OF CONTRIBUTED EARTH ORIENTATION PARAMETERS SERIES This section gives the average precision of the individual series contri- buting to the combination and their average agreement with it. The periods covered start at the beginning of the first month in Section 1 and end with the last available value in the individual series considered. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dX, dY. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dX dY Data Number VLBI EOP(AUS) 1 R 1 0.09 0.08 0.04 - - - 11 53374.21 to 53409.20 0.19 0.27 0.06 - - - EOP(BKG) 3 R 4 0.11 0.09 0.04 - - - 10 53374.20 to 53405.27 0.17 0.16 0.11 - - - EOP(BKG) 3 R 2 - - 0.17 - - - 40 53374.79 to 53421.33 - - 0.12 - - - EOP(USNO) 5 R 1 - - 0.18 - - - 41 53374.79 to 53422.79 - - 0.16 - - - EOP(GSFC) 4 R 2 0.14 0.08 0.08 - - - 14 53374.20 to 53416.21 0.10 0.13 0.07 - - - EOP(GSFC) 4 R 1 - - 0.19 - - - 42 53374.79 to 53422.79 - - 0.12 - - - EOP(IAA) 3 R 4 0.09 0.08 0.04 - 0.14 0.05 10 53374.21 to 53405.27 0.10 0.20 0.09 - 0.19 0.08 EOP(IAA) 3 R 3 - - 0.16 - - - 36 53374.80 to 53417.79 - - 0.15 - - - EOP(SPBU) 3 R 3 0.26 0.30 0.17 - - - 11 53374.21 to 53409.20 0.07 0.14 0.13 - - - EOP(SPBU) 2 R 1 - - 0.27 - - - 25 53374.79 to 53418.79 - - 0.11 - - - EOP(MAO) 3 R 1 0.08 0.08 0.04 - 0.14 0.06 12 53374.23 to 53416.23 0.17 0.29 0.15 - 0.26 0.08 EOP(USNO) 4 R 1 0.07 0.07 0.03 - - - 13 53374.20 to 53416.21 0.09 0.13 0.08 - - - EOP(IVS) 0 R 1 0.06 0.05 0.02 - - - 10 53374.00 to 53405.00 0.18 0.13 0.06 - - - GPS EOP(CODE) 98 P 1 0.01 0.01 - 0.19 - - 51 53374.50 to 53424.50 0.03 0.10 - 0.30 - - EOP(EMR) 96 P 3 0.03 0.03 - 0.04 - - 51 53374.50 to 53424.50 0.06 0.20 - 0.45 - - EOP(ESOC) 96 P 1 0.02 0.02 - 0.09 - - 51 53374.50 to 53424.50 0.08 0.17 - 0.47 - - EOP(GFZ) 96 P 2 0.01 0.01 - 0.01 - - 51 53374.50 to 53424.50 0.04 0.03 - 0.27 - - EOP(IAA) 1 P 1 0.03 0.03 - 0.06 - - 48 53374.50 to 53421.50 0.13 0.42 - 0.41 - - EOP(JPL) 96 P 3 0.02 0.03 - 0.12 - - 40 53374.50 to 53413.50 0.03 0.04 - 0.32 - - EOP(NOAA) 96 P 1 0.01 0.01 - 0.02 - - 46 53374.50 to 53419.50 0.13 0.16 - 0.32 - - EOP(SIO) 96 P 1 0.05 0.05 - 0.11 - - 51 53374.50 to 53424.50 0.07 0.07 - 0.35 - - EOP(IGS F)95 P 2 0.02 0.03 0.07 0.05 - - 40 53374.50 to 53413.50 0.06 0.12 0.28 0.26 - - EOP(IGS R)96 P 2 0.04 0.04 0.18 0.06 - - 51 53374.50 to 53424.50 0.08 0.12 0.69 0.25 - - EOP(IERS) 97 P 1 0.04 0.04 0.20 0.13 - - 51 53374.50 to 53424.50 0.02 0.02 0.28 0.26 - - SLR EOP(ASI) 3 L 2 0.09 0.11 - 0.13 - - 50 53374.50 to 53423.50 0.30 0.38 - 0.98 - - EOP(ILRS) 5 L 1 0.13 0.17 - 0.27 - - 47 53374.50 to 53420.50 0.31 0.25 - 0.77 - - EOP(DUT) 98 L 1 0.12 0.12 - - - - 52 53374.00 to 53425.00 0.57 0.35 - - - - EOP(IAA) 2 L 1 0.04 0.05 0.03 0.03 - - 48 53374.00 to 53421.00 0.31 0.21 0.52 0.28 - - EOP(MCC) 97 L 1 0.05 0.07 - 0.10 - - 45 53374.00 to 53418.00 0.18 0.33 - 0.61 - - Bulletin A EOP(NEOS) 97 C 1 0.06 0.06 0.07 - - - 52 53374.00 to 53425.00 0.15 0.13 0.34 - - -