BULLETIN B 208 (IAU 2000) 3 june 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 as long as necessary. 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. APR 4 53464 -0.03343 0.24532 -0.575439 -32.575439 -0.06 -0.23 APR 9 53469 -0.03831 0.25232 -0.578578 -32.578578 -0.09 -0.31 APR 14 53474 -0.04612 0.26029 -0.581881 -32.581881 -0.10 -0.24 APR 19 53479 -0.05234 0.27151 -0.586476 -32.586476 -0.01 -0.09 APR 24 53484 -0.05759 0.28312 -0.591348 -32.591348 -0.10 -0.28 APR 29 53489 -0.05777 0.29223 -0.596272 -32.596272 0.03 -0.23 MAY 4 53494 -0.05994 0.30372 -0.600584 -32.600584 0.02 -0.16 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. MAY 9 53499 -0.06043 0.31285 -0.604625 -32.604625 0.01 -0.13 MAY 14 53504 -0.06484 0.32017 -0.608683 -32.608683 0.10 -0.05 MAY 19 53509 -0.06898 0.32749 -0.612188 -32.612188 -0.11 -0.34 MAY 24 53514 -0.07141 0.33538 -0.614611 -32.614611 0.00 0.00 MAY 29 53519 -0.06685 0.34550 -0.615335 -32.615335 0.00 0.00 JUN 3 53524 -0.06078 0.35423 -0.616054 -32.616054 0.00 0.00 JUN 8 53529 -0.05835 0.36426 -0.616135 -32.616135 0.00 0.00 JUN 13 53534 -0.05607 0.37387 -0.615837 -32.615837 0.00 0.00 JUN 18 53539 -0.05337 0.38320 -0.615181 -32.615181 0.00 0.00 JUN 23 53544 -0.05013 0.39225 -0.614204 -32.614204 0.00 0.00 JUN 28 53549 -0.04632 0.40097 -0.612938 -32.612938 0.00 0.00 JUL 3 53554 -0.04195 0.40931 -0.611420 -32.611420 0.00 0.00 JUL 8 53559 -0.03705 0.41723 -0.609703 -32.609703 0.00 0.00 JUL 13 53564 -0.03165 0.42470 -0.607849 -32.607849 0.00 0.00 JUL 18 53569 -0.02578 0.43168 -0.605904 -32.605904 0.00 0.00 JUL 23 53574 -0.01948 0.43813 -0.603935 -32.603935 0.00 0.00 JUL 28 53579 -0.01279 0.44403 -0.601982 -32.601982 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 208 (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" APR 4 53464 -0.03343 0.24532 -0.574323 1.117 0.614 -0.06 -0.23 APR 5 53465 -0.03433 0.24599 -0.575078 1.012 0.874 -0.02 -0.29 APR 6 53466 -0.03498 0.24611 -0.576054 0.631 1.092 0.02 -0.33 APR 7 53467 -0.03548 0.24802 -0.577226 0.048 1.258 0.03 -0.33 APR 8 53468 -0.03668 0.24981 -0.578523 -0.605 1.292 -0.02 -0.30 APR 9 53469 -0.03831 0.25232 -0.579764 -1.185 1.180 -0.09 -0.31 APR 10 53470 -0.04072 0.25366 -0.580851 -1.573 0.932 -0.15 -0.34 APR 11 53471 -0.04241 0.25522 -0.581617 -1.703 0.606 -0.15 -0.35 APR 12 53472 -0.04420 0.25661 -0.582070 -1.571 0.349 -0.12 -0.32 APR 13 53473 -0.04532 0.25849 -0.582336 -1.218 0.249 -0.11 -0.25 APR 14 53474 -0.04612 0.26029 -0.582595 -0.714 0.237 -0.10 -0.24 APR 15 53475 -0.04665 0.26220 -0.582839 -0.142 0.276 -0.10 -0.26 APR 16 53476 -0.04786 0.26464 -0.583173 0.414 0.404 -0.09 -0.29 APR 17 53477 -0.04926 0.26704 -0.583669 0.880 0.567 -0.07 -0.23 APR 18 53478 -0.05096 0.26929 -0.584324 1.196 0.737 -0.05 -0.13 APR 19 53479 -0.05234 0.27151 -0.585153 1.323 0.921 -0.01 -0.09 APR 20 53480 -0.05375 0.27395 -0.586167 1.248 1.126 0.04 -0.12 APR 21 53481 -0.05492 0.27618 -0.587393 0.985 1.311 0.06 -0.21 APR 22 53482 -0.05570 0.27838 -0.588768 0.581 1.399 0.03 -0.28 APR 23 53483 -0.05685 0.28063 -0.590161 0.115 1.464 -0.03 -0.30 APR 24 53484 -0.05759 0.28312 -0.591659 -0.312 1.377 -0.10 -0.28 APR 25 53485 -0.05838 0.28497 -0.592882 -0.595 1.200 -0.10 -0.23 APR 26 53486 -0.05874 0.28665 -0.594041 -0.659 1.007 -0.03 -0.18 APR 27 53487 -0.05875 0.28840 -0.594902 -0.487 0.728 0.04 -0.13 APR 28 53488 -0.05847 0.29019 -0.595524 -0.125 0.504 0.06 -0.15 APR 29 53489 -0.05777 0.29223 -0.595952 0.319 0.464 0.03 -0.23 APR 30 53490 -0.05725 0.29459 -0.596496 0.716 0.573 -0.01 -0.33 MAY 1 53491 -0.05723 0.29734 -0.597133 0.942 0.744 -0.02 -0.38 MAY 2 53492 -0.05782 0.29988 -0.598000 0.922 0.995 0.00 -0.36 MAY 3 53493 -0.05902 0.30187 -0.599115 0.641 1.230 0.03 -0.27 MAY 4 53494 -0.05994 0.30372 -0.600432 0.152 1.390 0.02 -0.16 MAY 5 53495 -0.06051 0.30578 -0.601855 -0.442 1.409 -0.01 -0.11 MAY 6 53496 -0.06096 0.30754 -0.603207 -1.011 1.289 -0.03 -0.13 MAY 7 53497 -0.06051 0.30956 -0.604397 -1.439 1.116 -0.04 -0.20 MAY 8 53498 -0.06080 0.31128 -0.605420 -1.642 0.910 -0.02 -0.21 MAY 9 53499 -0.06043 0.31285 -0.606216 -1.591 0.678 0.01 -0.13 MAY 10 53500 -0.06112 0.31449 -0.606790 -1.306 0.471 0.06 0.01 MAY 11 53501 -0.06096 0.31592 -0.607182 -0.846 0.324 0.11 0.11 MAY 12 53502 -0.06239 0.31732 -0.607465 -0.289 0.241 0.12 0.08 MAY 13 53503 -0.06266 0.31869 -0.607692 0.280 0.206 0.11 0.00 MAY 14 53504 -0.06484 0.32017 -0.607901 0.782 0.287 0.10 -0.05 MAY 15 53505 -0.06541 0.32142 -0.608284 1.154 0.473 0.08 -0.02 MAY 16 53506 -0.06699 0.32337 -0.608857 1.351 0.651 0.02 -0.01 MAY 17 53507 -0.06721 0.32472 -0.609589 1.355 0.778 -0.05 -0.11 MAY 18 53508 -0.06846 0.32630 -0.610407 1.170 0.892 -0.12 -0.25 MAY 19 53509 -0.06898 0.32749 -0.611358 0.830 1.009 -0.11 -0.34 MAY 20 53510 -0.07006 0.32909 -0.612401 0.393 1.014 -0.02 -0.29 MAY 21 53511 -0.07051 0.33032 -0.613353 -0.053 0.930 0.00 0.00 MAY 22 53512 -0.07093 0.33208 -0.614227 -0.406 0.767 0.00 0.00 MAY 23 53513 -0.07111 0.33372 -0.614861 -0.574 0.448 0.00 0.00 MAY 24 53514 -0.07141 0.33538 -0.615117 -0.506 0.124 0.00 0.00 MAY 25 53515 -0.07120 0.33708 -0.615128 -0.223 -.139 0.00 0.00 MAY 26 53516 -0.07059 0.33900 -0.614880 0.184 -.328 0.00 0.00 MAY 27 53517 -0.06868 0.34126 -0.614520 0.580 -.265 0.00 0.00 MAY 28 53518 -0.06823 0.34348 -0.614390 0.827 -.008 0.00 0.00 MAY 29 53519 -0.06685 0.34550 -0.614498 0.837 0.225 0.00 0.00 MAY 30 53520 -0.06608 0.34770 -0.614858 0.587 0.503 0.00 0.00 MAY 31 53521 -0.06445 0.34952 -0.615469 0.128 0.692 0.00 0.00 IERS, B 208 (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" APR 4 53464 -0.03345 0.24535 -0.574315 -.076 -.221 0.02 0.02 0.03 0.04 0.05 APR 9 53469 -0.03831 0.25233 -0.579759 -.082 -.248 0.02 0.03 0.02 0.04 0.05 APR 14 53474 -0.04609 0.26026 -0.582596 -.063 -.221 0.02 0.02 0.01 0.04 0.04 APR 19 53479 -0.05233 0.27152 -0.585150 0.017 -.121 0.02 0.01 0.02 0.02 0.02 APR 24 53484 -0.05758 0.28313 -0.591662 -.103 -.274 0.01 0.01 0.01 0.02 0.02 APR 29 53489 -0.05777 0.29223 -0.595952 0.016 -.332 0.01 0.01 0.02 0.03 0.03 MAY 4 53494 -0.05993 0.30372 -0.600432 0.011 -.140 0.01 0.01 0.01 0.02 0.02 MAY 9 53499 -0.06041 0.31284 -0.606216 0.075 -.085 0.02 0.02 0.02 0.06 0.06 MAY 14 53504 -0.06485 0.32017 -0.607890 0.060 0.015 0.03 0.03 0.04 0.05 0.07 MAY 19 53509 -0.06898 0.32749 -0.611358 -.101 -.336 0.01 0.01 0.02 0.02 0.03 MAY 24 53514 -0.07141 0.33538 -0.615120 - - 0.01 0.01 0.03 - - MAY 29 53519 -0.06685 0.34550 -0.614501 - - 0.02 0.02 0.04 - - 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) APR 4 53464 0.00066 72.921 15091 APR 9 53469 0.00069 15089 APR 14 53474 0.00079 15080 APR 19 53479 0.00095 15066 APR 24 53484 0.00101 15061 APR 29 53489 0.00091 15070 MAY 4 53494 0.00083 15076 5 - INFORMATION ON TIME SCALES No leap second was introduced in UTC on 31 December 2004. No leap second will be introduced in UTC on 30 June 2005. 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 208 (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 0.07 0.07 0.03 - - - 13 53465.21 to 53507.21 0.19 0.24 0.07 - - - EOP(BKG) 3 R 4 0.10 0.09 0.04 - - - 13 53465.20 to 53507.21 0.26 0.23 0.06 - - - EOP(BKG) 3 R 2 - - 0.11 - - - 43 53464.79 to 53519.33 - - 0.19 - - - EOP(USNO) 5 R 1 - - 0.11 - - - 44 53464.79 to 53519.33 - - 0.15 - - - EOP(GSFC) 4 R 2 0.06 0.06 0.02 - - - 14 53465.20 to 53510.27 0.17 0.06 0.11 - - - EOP(GSFC) 4 R 1 - - 0.11 - - - 44 53464.79 to 53519.33 - - 0.15 - - - EOP(IAA) 5 R 1 0.06 0.06 0.03 - 0.11 0.04 13 53465.21 to 53507.21 0.23 0.15 0.05 - 0.15 0.07 EOP(IAA) 3 R 3 - - 0.11 - - - 42 53464.79 to 53519.33 - - 0.18 - - - EOP(SPBU) 3 R 3 0.22 0.27 0.13 - - - 13 53465.21 to 53507.21 0.12 0.14 0.10 - - - EOP(SPBU) 2 R 1 - - 0.11 - - - 43 53464.79 to 53519.33 - - 0.18 - - - EOP(MAO) 3 R 1 0.07 0.07 0.03 - 0.13 0.05 10 53465.27 to 53496.28 0.25 0.09 0.08 - 0.17 0.10 EOP(USNO) 5 R 1 0.07 0.07 0.03 - - - 14 53465.20 to 53510.27 0.15 0.08 0.04 - - - EOP(IVS) 0 R 1 0.09 0.09 0.04 - - - 13 53465.00 to 53507.00 0.17 0.11 0.07 - - - GPS EOP(CODE) 98 P 1 0.02 0.02 - 0.18 - - 57 53464.50 to 53520.50 0.04 0.06 - 0.26 - - EOP(EMR) 96 P 3 0.03 0.03 - 0.04 - - 57 53464.50 to 53520.50 0.05 0.13 - 0.48 - - EOP(ESOC) 96 P 1 0.01 0.02 - 0.07 - - 53 53464.50 to 53516.50 0.06 0.08 - 0.48 - - EOP(GFZ) 96 P 2 0.01 0.01 - 0.02 - - 57 53464.50 to 53520.50 0.05 0.05 - 0.33 - - EOP(IAA) 1 P 1 0.03 0.03 - 0.06 - - 57 53464.50 to 53520.50 0.19 0.34 - 0.70 - - EOP(JPL) 96 P 3 0.02 0.02 - 0.13 - - 48 53464.50 to 53511.50 0.04 0.04 - 0.39 - - EOP(NOAA) 96 P 1 0.01 0.01 - 0.02 - - 51 53464.50 to 53514.50 0.15 0.13 - 0.33 - - EOP(SIO) 96 P 1 0.08 0.08 - 0.17 - - 57 53464.50 to 53520.50 0.06 0.08 - 0.34 - - EOP(IGS F)95 P 2 0.02 0.03 0.07 0.05 - - 41 53464.50 to 53504.50 0.03 0.09 0.24 0.22 - - EOP(IGS R)96 P 2 0.03 0.04 0.18 0.07 - - 57 53464.50 to 53520.50 0.07 0.06 0.89 0.22 - - EOP(IERS) 97 P 1 0.03 0.03 0.15 0.10 - - 57 53464.50 to 53520.50 0.01 0.03 0.31 0.24 - - SLR EOP(ASI) 3 L 2 0.06 0.07 - 0.14 - - 57 53464.50 to 53520.50 0.25 0.28 - 0.87 - - EOP(CSR) 95 L 1 0.33 0.47 0.36 - - - 18 53465.77 to 53516.10 0.33 0.48 0.62 - - - EOP(DUT) 98 L 1 0.09 0.10 - - - - 48 53464.00 to 53511.00 0.51 0.32 - - - - EOP(IAA) 2 L 1 0.04 0.04 0.02 0.02 - - 58 53464.00 to 53521.00 0.24 0.21 0.30 0.16 - - EOP(MCC) 97 L 1 0.04 0.06 - 0.10 - - 53 53464.00 to 53516.00 0.19 0.23 - 0.44 - - EOP(ILRS) 5 L 1 0.11 0.12 - 0.23 - - 62 53464.50 to 53518.50 0.33 0.19 - 0.67 - - Bulletin A EOP(NEOS) 97 C 1 0.05 0.06 0.08 - - - 58 53464.00 to 53521.00 0.15 0.12 0.21 - - -