BULLETIN B 226 1 December 2006 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 dPsi dEpsilon 2006/2007 " " s s 0.001" 0.001" (0h UTC) Final Bulletin B values. OCT 1 54009 0.03268 0.25236 0.145367 -32.854633 -65.1 -5.6 OCT 6 54014 0.02528 0.25398 0.139201 -32.860799 -65.0 -4.6 OCT 11 54019 0.01829 0.25762 0.131931 -32.868069 -65.0 -4.9 OCT 16 54024 0.00849 0.25857 0.125248 -32.874752 -64.2 -4.8 OCT 21 54029 0.00352 0.26280 0.119267 -32.880733 -62.9 -3.6 OCT 26 54034 -0.00184 0.26771 0.112662 -32.887338 -63.1 -4.6 OCT 31 54039 -0.00376 0.27149 0.106512 -32.893488 -61.6 -4.4 NOV 5 54044 -0.00581 0.27658 0.100553 -32.899447 -61.6 -3.5 Preliminary extension, to be updated weekly in Bulletin A and monthly in Bulletin B. NOV 10 54049 -0.01239 0.28299 0.094690 -32.905310 -61.2 -4.0 NOV 15 54054 -0.01775 0.28726 0.089163 -32.910837 -60.3 -2.8 NOV 20 54059 -0.02419 0.29131 0.084310 -32.915690 -60.9 -3.0 NOV 25 54064 -0.03123 0.29734 0.078902 -32.921098 -60.1 -3.0 NOV 30 54069 -0.03743 0.30289 0.073488 -32.926512 -59.2 -2.7 DEC 5 54074 -0.04114 0.30970 0.068481 -32.931519 -59.8 -2.6 DEC 10 54079 -0.04364 0.31703 0.064034 -32.935966 -58.7 -2.5 DEC 15 54084 -0.04468 0.32448 0.060036 -32.939964 -58.8 -2.0 DEC 20 54089 -0.04475 0.33211 0.056435 -32.943565 -59.3 -2.4 DEC 25 54094 -0.04397 0.33990 0.053154 -32.946846 -58.4 -2.2 DEC 30 54099 -0.04244 0.34778 0.050117 -32.949883 -58.9 -1.9 JAN 4 54104 -0.04022 0.35574 0.047272 -32.952728 -58.4 -2.3 JAN 9 54109 -0.03737 0.36373 0.044540 -32.955460 -57.4 -1.7 JAN 14 54114 -0.03389 0.37169 0.041870 -32.958130 -58.3 -2.0 JAN 19 54119 -0.02982 0.37959 0.039200 -32.960800 -58.5 -2.6 JAN 24 54124 -0.02515 0.38736 0.036476 -32.963524 -58.2 -2.2 JAN 29 54129 -0.01993 0.39496 0.033646 -32.966354 -59.1 -2.4 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, dPsi, and dEpsilon. IERS, B 226 (2) 2 - SMOOTHED VALUES OF x, y, UT1, D, DPSI, DEPSILON (IERS EVALUATION) at one-day intervals. For smoothing characteristics, see Table2 in the explanatory supplement. The reference system is described in the 2005 IERS Annual Report. 2006 MJD x y UT1-UTC UT1-UT1R D dPsi dEpsilon (0 h UTC) " " s ms ms 0.001" 0.001" OCT 1 54009 0.03268 0.25236 0.146853 1.486 0.789 -65.1 -5.6 OCT 2 54010 0.03041 0.25257 0.146004 1.831 0.975 -65.0 -5.5 OCT 3 54011 0.02844 0.25269 0.144882 1.907 1.297 -64.8 -5.3 OCT 4 54012 0.02704 0.25307 0.143398 1.643 1.670 -64.8 -5.1 OCT 5 54013 0.02615 0.25362 0.141560 1.050 2.007 -64.9 -4.8 OCT 6 54014 0.02528 0.25398 0.139433 0.232 2.215 -65.0 -4.6 OCT 7 54015 0.02438 0.25437 0.137197 -0.634 2.242 -65.0 -4.5 OCT 8 54016 0.02355 0.25498 0.135009 -1.351 2.055 -65.0 -4.5 OCT 9 54017 0.02231 0.25590 0.133123 -1.769 1.715 -64.9 -4.6 OCT 10 54018 0.02047 0.25690 0.131582 -1.833 1.373 -65.0 -4.7 OCT 11 54019 0.01829 0.25762 0.130348 -1.583 1.110 -65.0 -4.9 OCT 12 54020 0.01571 0.25794 0.129318 -1.129 0.954 -65.1 -5.1 OCT 13 54021 0.01313 0.25770 0.128398 -0.603 0.853 -65.1 -5.2 OCT 14 54022 0.01130 0.25742 0.127579 -0.120 0.837 -64.9 -5.2 OCT 15 54023 0.00988 0.25770 0.126704 0.240 0.943 -64.6 -5.0 OCT 16 54024 0.00849 0.25857 0.125686 0.438 1.100 -64.2 -4.8 OCT 17 54025 0.00726 0.25952 0.124507 0.466 1.246 -63.7 -4.4 OCT 18 54026 0.00624 0.26034 0.123204 0.343 1.365 -63.3 -4.0 OCT 19 54027 0.00526 0.26124 0.121794 0.110 1.456 -63.0 -3.7 OCT 20 54028 0.00424 0.26200 0.120313 -0.174 1.496 -62.9 -3.6 OCT 21 54029 0.00352 0.26280 0.118825 -0.443 1.482 -62.9 -3.6 OCT 22 54030 0.00300 0.26377 0.117370 -0.628 1.411 -63.1 -3.8 OCT 23 54031 0.00223 0.26479 0.116018 -0.676 1.291 -63.3 -4.1 OCT 24 54032 0.00104 0.26595 0.114796 -0.553 1.133 -63.4 -4.4 OCT 25 54033 -0.00054 0.26699 0.113748 -0.254 0.963 -63.3 -4.5 OCT 26 54034 -0.00184 0.26771 0.112854 0.192 0.828 -63.1 -4.6 OCT 27 54035 -0.00245 0.26827 0.112066 0.723 0.752 -62.7 -4.7 OCT 28 54036 -0.00287 0.26877 0.111316 1.250 0.767 -62.4 -4.7 OCT 29 54037 -0.00311 0.26942 0.110494 1.665 0.887 -62.1 -4.7 OCT 30 54038 -0.00331 0.27038 0.109510 1.862 1.099 -61.8 -4.6 OCT 31 54039 -0.00376 0.27149 0.108278 1.765 1.387 -61.6 -4.4 NOV 1 54040 -0.00408 0.27262 0.106741 1.353 1.702 -61.5 -4.1 NOV 2 54041 -0.00426 0.27387 0.104907 0.680 1.948 -61.5 -3.8 NOV 3 54042 -0.00456 0.27499 0.102899 -0.122 2.028 -61.5 -3.6 NOV 4 54043 -0.00510 0.27580 0.100912 -0.876 1.906 -61.5 -3.4 NOV 5 54044 -0.00581 0.27658 0.099136 -1.417 1.611 -61.6 -3.5 NOV 6 54045 -0.00654 0.27753 0.097710 -1.641 1.243 -61.6 -3.6 NOV 7 54046 -0.00737 0.27909 0.096637 -1.536 0.921 -61.5 -3.8 NOV 8 54047 -0.00883 0.28086 0.095832 -1.178 0.712 -61.4 -4.0 NOV 9 54048 -0.01066 0.28210 0.095168 -0.694 0.657 -61.3 -4.0 NOV 10 54049 -0.01239 0.28299 0.094478 -0.212 0.697 -61.2 -4.0 NOV 11 54050 -0.01385 0.28373 0.093749 0.168 0.829 -61.1 -3.8 NOV 12 54051 -0.01482 0.28455 0.092809 0.391 1.005 -60.9 -3.6 NOV 13 54052 -0.01574 0.28554 0.091740 0.444 1.130 -60.6 -3.3 NOV 14 54053 -0.01683 0.28650 0.090558 0.343 1.234 -60.4 -3.0 NOV 15 54054 -0.01775 0.28726 0.089287 0.124 1.245 -60.3 -2.8 NOV 16 54055 -0.01856 0.28807 0.088088 -0.158 1.233 -60.2 -2.7 NOV 17 54056 -0.01974 0.28911 0.086842 -0.441 1.228 -60.2 -2.7 NOV 18 54057 -0.02125 0.29008 0.085654 -0.660 1.140 -60.7 -2.6 NOV 19 54058 -0.02269 0.29078 0.084580 -0.756 1.022 -60.8 -2.7 NOV 20 54059 -0.02419 0.29131 0.083619 -0.691 0.898 -60.9 -3.0 NOV 21 54060 -0.02570 0.29198 0.082784 -0.449 0.770 -61.0 -3.2 NOV 22 54061 -0.02687 0.29293 0.082067 -0.048 0.652 -61.0 -3.2 NOV 23 54062 -0.02810 0.29434 0.081455 0.458 0.557 -60.8 -3.1 NOV 24 54063 -0.02963 0.29584 0.080920 0.982 0.548 -60.4 -3.0 NOV 25 54064 -0.03123 0.29734 0.080323 1.422 0.688 -60.1 -3.0 NOV 26 54065 -0.03291 0.29885 0.079507 1.674 0.941 -59.8 -3.0 NOV 27 54066 -0.03449 0.30019 0.078416 1.665 1.239 -59.5 -3.1 NOV 28 54067 -0.03572 0.30114 0.077033 1.370 1.523 -59.3 -3.1 NOV 29 54068 -0.03663 0.30188 0.075398 0.825 1.721 -59.1 -3.0 NOV 30 54069 -0.03743 0.30289 0.073618 0.130 1.786 -59.2 -2.7 IERS, B 226 (3) 3 - NORMAL VALUES OF THE EARTH ORIENTATION PARAMETERS AT FIVE-DAY INTERVALS (IERS evaluation). Raw normal values Uncertainties 2006 MJD x y UT1-UTC dPsi dEps x y UT1 dPsi dEps (0 h UTC) " " s 0.001" 0.001" 0.0001s 0.001" OCT 1 54009 0.03267 0.25235 0.146865 -65.24 -5.60 0.02 0.02 0.02 0.05 0.02 OCT 6 54014 0.02527 0.25399 0.139429 -65.13 -4.54 0.02 0.02 0.02 0.11 0.05 OCT 11 54019 0.01830 0.25760 0.130347 -65.05 -4.84 0.02 0.02 0.02 0.05 0.02 OCT 16 54024 0.00848 0.25857 0.125684 -64.13 -4.78 0.02 0.02 0.02 0.05 0.02 OCT 21 54029 0.00351 0.26277 0.118823 -62.83 -3.56 0.02 0.02 0.02 0.12 0.05 OCT 26 54034 -0.00183 0.26771 0.112852 -63.07 -4.61 0.02 0.02 0.02 0.08 0.03 OCT 31 54039 -0.00377 0.27149 0.108278 -61.61 -4.43 0.02 0.02 0.02 0.05 0.02 NOV 5 54044 -0.00576 0.27659 0.099138 -61.54 -3.48 0.02 0.02 0.01 0.05 0.02 NOV 10 54049 -0.01239 0.28298 0.094479 -61.21 -3.93 0.02 0.02 0.02 0.11 0.05 NOV 15 54054 -0.01774 0.28726 0.089291 -60.18 -2.89 0.01 0.02 0.01 0.07 0.03 NOV 20 54059 -0.02420 0.29132 0.083617 - - 0.02 0.02 0.01 - - NOV 25 54064 -0.03123 0.29734 0.080328 - - 0.04 0.04 0.02 - - NOV 30 54069 -0.03744 0.30290 0.000000 - - 0.02 0.02 - - - 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 2006 MJD s (microrad/s) OCT 1 54009 0.00124 72.921 15042 OCT 6 54014 0.00134 15033 OCT 11 54019 0.00149 15021 OCT 16 54024 0.00122 15044 OCT 21 54029 0.00125 15041 OCT 26 54034 0.00133 15034 OCT 31 54039 0.00113 15051 NOV 5 54044 0.00122 15043 5 - INFORMATION ON TIME SCALES No leap second will be introduced in UTC on 31 December 2006. 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 226 (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. The complete list of measurements is available in the electronic-mailed version of Bulletin B in section 7. Units : 0.001" for x,y , 0.0001s for UT1, 0.001" for dPsi, dEpsi. -------------------------------------------------------------------------------- EOP series Mean formal uncertainty Periods covered Weighted RMS agreement with Bulletin B -------------------------------------------------------------------------------- x y UT D dPsi dEps Data Number VLBI EOP(AUS) 1 R 1 0.08 0.08 0.04 - 0.17 0.07 13 54011.21 to 54056.27 0.16 0.17 0.06 - 0.41 0.10 EOP(BKG) 3 R 4 0.07 0.08 0.04 - 0.14 0.06 14 54011.21 to 54056.27 0.11 0.14 0.06 - 0.12 0.07 EOP(BKG) 3 R 2 - - 0.09 - - - 49 54009.33 to 54065.33 - - 0.11 - - - EOP(USNO) 5 R 1 - - 0.10 - - - 52 54009.33 to 54065.33 - - 0.08 - - - EOP(GSFC) 6 R 1 - - 0.09 - - - 49 54009.33 to 54065.33 - - 0.12 - - - EOP(IAA) 5 R 2 0.07 0.08 0.03 - - - 13 54011.21 to 54056.27 0.13 0.16 0.06 - - - EOP(IAA) 5 R 1 - - 0.10 - - - 49 54009.33 to 54065.33 - - 0.19 - - - EOP(SPBU) 3 R 3 0.25 0.30 0.15 - 0.07 0.03 11 54011.21 to 54049.27 0.22 0.27 0.17 - 0.35 0.08 EOP(SPBU) 2 R 1 - - 0.10 - - - 49 54009.33 to 54065.33 - - 0.12 - - - EOP(MAO) 3 R 1 0.08 0.09 0.04 - - - 13 54011.23 to 54049.29 0.15 0.11 0.07 - - - EOP(GSFC) 6 R 1 0.07 0.07 0.03 - 0.14 0.06 14 54011.21 to 54056.27 0.08 0.15 0.11 - 0.13 0.11 EOP(USNO) 6 R 2 0.06 0.07 0.03 - 0.16 0.06 13 54011.21 to 54056.27 0.13 0.12 0.05 - 0.13 0.07 EOP(IVS) 0 R 1 0.05 0.06 0.02 - 0.08 0.03 10 54011.00 to 54042.00 0.14 0.18 0.09 - 0.10 0.12 GPS EOP(CODE) 98 P 1 0.01 0.01 - 0.07 - - 60 54009.50 to 54068.50 0.07 0.04 - 0.18 - - EOP(EMR) 96 P 3 0.03 0.03 - 0.04 - - 60 54009.50 to 54068.50 0.05 0.07 - 0.40 - - EOP(ESOC) 96 P 1 0.01 0.01 - 0.04 - - 60 54009.50 to 54068.50 0.07 0.09 - 0.57 - - EOP(GFZ) 96 P 2 0.01 0.01 - 0.02 - - 60 54009.50 to 54068.50 0.05 0.14 - 0.22 - - EOP(IAA) 1 P 1 0.03 0.03 - 0.06 - - 60 54009.50 to 54068.50 0.15 0.45 - 0.54 - - EOP(JPL) 96 P 3 0.02 0.02 - 0.13 - - 49 54009.50 to 54057.50 0.05 0.05 - 0.28 - - EOP(NOAA) 96 P 1 0.01 0.01 - 0.02 - - 52 54009.50 to 54060.50 0.16 0.14 - 0.35 - - EOP(SIO) 96 P 1 0.09 0.09 - 0.19 - - 60 54009.50 to 54068.50 0.05 0.36 - 0.25 - - EOP(IGS F)95 P 2 0.02 0.02 0.07 0.05 - - 49 54009.50 to 54057.50 0.03 0.09 0.13 0.19 - - EOP(IGS R)96 P 2 0.04 0.05 0.18 0.06 - - 60 54009.50 to 54068.50 0.05 0.07 0.53 0.16 - - EOP(IERS) 97 P 1 0.03 0.04 0.19 0.11 - - 60 54009.50 to 54068.50 0.03 0.03 0.17 0.23 - - SLR EOP(ASI) 3 L 2 0.06 0.06 - 0.15 - - 59 54009.50 to 54067.50 0.19 0.15 - 0.44 - - EOP(IAA) 2 L 1 0.03 0.03 0.02 0.02 - - 59 54009.00 to 54067.00 0.12 0.13 0.17 0.10 - - EOP(MCC) 97 L 1 0.13 0.15 - 0.10 - - 54 54009.00 to 54062.00 0.24 0.33 - 1.72 - - EOP(ILRS) 5 L 1 0.05 0.06 - 0.13 - - 56 54009.50 to 54064.50 0.15 0.19 - 0.56 - - Bulletin A EOP(NEOS) 97 C 1 0.04 0.06 0.07 - - - 61 54009.00 to 54069.00 0.05 0.07 0.13 - - -