********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 20 October 2005 Vol. XVIII No. 042 ______________________________________________________________________ GENERAL INFORMATION: To receive this information electronically, contact: ser7@maia.usno.navy.mil or use MJD = Julian Date - 2 400 000.5 days UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T) - 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T) where pi = 3.14159265... and T is the date in Besselian years. TT = TAI + 32.184 seconds DUT1= (UT1-UTC) transmitted with time signals = -0.6 seconds beginning 17 March 2005 at 0000 UTC Beginning 1 January 1999: TAI-UTC(BIPM) = 32.000 000 seconds ********************************************************************** * >>> A positive leap second will be introduced in UTC on <<< * * >>> 31 December 2005. <<< * * * * See notice at the end of this Bulletin A for more details. * ********************************************************************** ________________________________________________________________________ The contributed observations used in the preparation of this Bulletin are available at . The contributed analysis results are based on data from Very Long Baseline Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and meteorological predictions of variations in Atmospheric Angular Momentum (AAM). ________________________________________________________________________ COMBINED EARTH ORIENTATION PARAMETERS: IERS Rapid Service MJD x error y error UT1-UTC error " " " " s s 5 10 14 53657 .06633 .00004 .41084 .00005 -.613407 .000013 5 10 15 53658 .06698 .00003 .40957 .00006 -.614423 .000013 5 10 16 53659 .06794 .00003 .40843 .00006 -.615593 .000013 5 10 17 53660 .06926 .00003 .40783 .00005 -.616744 .000013 5 10 18 53661 .07040 .00003 .40764 .00005 -.617774 .000013 5 10 19 53662 .07093 .00003 .40739 .00005 -.618599 .000013 5 10 20 53663 .07108 .00003 .40698 .00003 -.619164 .000012 _______________________________________________________________________ PREDICTIONS: The following formulas will not reproduce the predictions given below, but may be used to extend the predictions beyond the end of this table. x = .0476 + .0757 cos A - .0701 sin A - .0482 cos C + .1325 sin C y = .3480 - .0684 cos A - .0779 sin A + .1325 cos C + .0482 sin C UT1-UTC = -.6408 - .00043 (MJD - 53668) - (UT2-UT1) where A = 2*pi*(MJD-53663)/365.25 and C = 2*pi*(MJD-53663)/435. TAI-UTC(MJD 53664) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53663)**0.80 S t = 0.00025 (MJD-53663)**0.75 Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d Polar coord's 0.004 0.007 0.010 0.013 UT1-UTC 0.0014 0.0024 0.0032 0.0040 MJD x(arcsec) y(arcsec) UT1-UTC(sec) 2005 10 21 53664 0.0713 0.4065 -0.61947 2005 10 22 53665 0.0716 0.4061 -0.61963 2005 10 23 53666 0.0720 0.4056 -0.61976 2005 10 24 53667 0.0724 0.4052 -0.61993 2005 10 25 53668 0.0728 0.4047 -0.62020 2005 10 26 53669 0.0733 0.4042 -0.62061 2005 10 27 53670 0.0738 0.4037 -0.62118 2005 10 28 53671 0.0744 0.4033 -0.62191 2005 10 29 53672 0.0749 0.4028 -0.62276 2005 10 30 53673 0.0755 0.4023 -0.62369 2005 10 31 53674 0.0760 0.4018 -0.62462 2005 11 1 53675 0.0766 0.4013 -0.62550 2005 11 2 53676 0.0772 0.4008 -0.62626 2005 11 3 53677 0.0778 0.4003 -0.62684 2005 11 4 53678 0.0784 0.3998 -0.62721 2005 11 5 53679 0.0789 0.3993 -0.62739 2005 11 6 53680 0.0795 0.3988 -0.62747 2005 11 7 53681 0.0801 0.3983 -0.62756 2005 11 8 53682 0.0807 0.3978 -0.62780 2005 11 9 53683 0.0812 0.3972 -0.62830 2005 11 10 53684 0.0818 0.3967 -0.62909 2005 11 11 53685 0.0823 0.3962 -0.63016 2005 11 12 53686 0.0829 0.3956 -0.63142 2005 11 13 53687 0.0834 0.3951 -0.63273 2005 11 14 53688 0.0839 0.3945 -0.63394 2005 11 15 53689 0.0845 0.3940 -0.63493 2005 11 16 53690 0.0850 0.3934 -0.63565 2005 11 17 53691 0.0855 0.3929 -0.63610 2005 11 18 53692 0.0860 0.3923 -0.63636 2005 11 19 53693 0.0865 0.3918 -0.63649 2005 11 20 53694 0.0870 0.3912 -0.63660 2005 11 21 53695 0.0875 0.3906 -0.63676 2005 11 22 53696 0.0880 0.3900 -0.63703 2005 11 23 53697 0.0884 0.3895 -0.63743 2005 11 24 53698 0.0889 0.3889 -0.63801 2005 11 25 53699 0.0893 0.3883 -0.63874 2005 11 26 53700 0.0898 0.3877 -0.63960 2005 11 27 53701 0.0902 0.3871 -0.64053 2005 11 28 53702 0.0907 0.3865 -0.64146 2005 11 29 53703 0.0911 0.3859 -0.64230 2005 11 30 53704 0.0915 0.3853 -0.64299 2005 12 1 53705 0.0919 0.3846 -0.64349 2005 12 2 53706 0.0923 0.3840 -0.64380 2005 12 3 53707 0.0927 0.3834 -0.64398 2005 12 4 53708 0.0931 0.3828 -0.64415 2005 12 5 53709 0.0935 0.3822 -0.64444 2005 12 6 53710 0.0939 0.3815 -0.64496 2005 12 7 53711 0.0943 0.3809 -0.64576 2005 12 8 53712 0.0946 0.3802 -0.64682 2005 12 9 53713 0.0950 0.3796 -0.64805 2005 12 10 53714 0.0953 0.3789 -0.64931 2005 12 11 53715 0.0957 0.3783 -0.65047 2005 12 12 53716 0.0960 0.3776 -0.65143 2005 12 13 53717 0.0963 0.3770 -0.65211 2005 12 14 53718 0.0966 0.3763 -0.65252 2005 12 15 53719 0.0970 0.3757 -0.65272 2005 12 16 53720 0.0973 0.3750 -0.65276 2005 12 17 53721 0.0976 0.3743 -0.65276 2005 12 18 53722 0.0979 0.3737 -0.65280 2005 12 19 53723 0.0981 0.3730 -0.65294 2005 12 20 53724 0.0984 0.3723 -0.65323 2005 12 21 53725 0.0987 0.3716 -0.65368 2005 12 22 53726 0.0989 0.3709 -0.65428 2005 12 23 53727 0.0991 0.3703 -0.65501 2005 12 24 53728 0.0994 0.3696 -0.65580 2005 12 25 53729 0.0996 0.3689 -0.65661 2005 12 26 53730 0.0998 0.3682 -0.65736 2005 12 27 53731 0.1000 0.3675 -0.65799 2005 12 28 53732 0.1002 0.3668 -0.65843 2005 12 29 53733 0.1004 0.3661 -0.65868 2005 12 30 53734 0.1005 0.3654 -0.65876 2005 12 31 53735 0.1007 0.3647 -0.65877 2006 1 1 53736 0.1009 0.3640 0.34113 2006 1 2 53737 0.1010 0.3633 0.34083 2006 1 3 53738 0.1011 0.3626 0.34024 2006 1 4 53739 0.1013 0.3619 0.33936 2006 1 5 53740 0.1014 0.3612 0.33829 2006 1 6 53741 0.1015 0.3605 0.33717 2006 1 7 53742 0.1016 0.3598 0.33614 2006 1 8 53743 0.1017 0.3591 0.33532 2006 1 9 53744 0.1017 0.3584 0.33477 2006 1 10 53745 0.1018 0.3578 0.33449 2006 1 11 53746 0.1018 0.3571 0.33443 2006 1 12 53747 0.1019 0.3564 0.33451 2006 1 13 53748 0.1019 0.3557 0.33465 2006 1 14 53749 0.1019 0.3550 0.33476 2006 1 15 53750 0.1019 0.3543 0.33476 2006 1 16 53751 0.1019 0.3536 0.33460 2006 1 17 53752 0.1019 0.3529 0.33427 2006 1 18 53753 0.1019 0.3523 0.33375 2006 1 19 53754 0.1018 0.3516 0.33310 2006 1 20 53755 0.1018 0.3509 0.33235 2006 1 21 53756 0.1017 0.3502 0.33157 2006 1 22 53757 0.1016 0.3496 0.33083 2006 1 23 53758 0.1016 0.3489 0.33019 2006 1 24 53759 0.1015 0.3482 0.32970 2006 1 25 53760 0.1014 0.3476 0.32938 2006 1 26 53761 0.1012 0.3469 0.32923 2006 1 27 53762 0.1011 0.3463 0.32917 2006 1 28 53763 0.1010 0.3456 0.32908 2006 1 29 53764 0.1008 0.3450 0.32880 2006 1 30 53765 0.1007 0.3444 0.32822 2006 1 31 53766 0.1005 0.3438 0.32731 2006 2 1 53767 0.1003 0.3431 0.32613 2006 2 2 53768 0.1001 0.3425 0.32482 2006 2 3 53769 0.0999 0.3419 0.32359 2006 2 4 53770 0.0997 0.3413 0.32256 2006 2 5 53771 0.0995 0.3407 0.32181 2006 2 6 53772 0.0993 0.3401 0.32135 2006 2 7 53773 0.0990 0.3396 0.32113 2006 2 8 53774 0.0988 0.3390 0.32108 2006 2 9 53775 0.0985 0.3384 0.32111 2006 2 10 53776 0.0983 0.3379 0.32111 2006 2 11 53777 0.0980 0.3373 0.32103 2006 2 12 53778 0.0977 0.3368 0.32079 2006 2 13 53779 0.0974 0.3362 0.32037 2006 2 14 53780 0.0971 0.3357 0.31977 2006 2 15 53781 0.0968 0.3352 0.31901 2006 2 16 53782 0.0965 0.3347 0.31814 2006 2 17 53783 0.0962 0.3342 0.31723 2006 2 18 53784 0.0958 0.3337 0.31635 2006 2 19 53785 0.0955 0.3332 0.31555 2006 2 20 53786 0.0952 0.3327 0.31489 2006 2 21 53787 0.0948 0.3322 0.31441 2006 2 22 53788 0.0944 0.3318 0.31409 2006 2 23 53789 0.0941 0.3313 0.31389 2006 2 24 53790 0.0937 0.3309 0.31370 2006 2 25 53791 0.0933 0.3305 0.31338 2006 2 26 53792 0.0930 0.3300 0.31279 2006 2 27 53793 0.0926 0.3296 0.31186 2006 2 28 53794 0.0922 0.3292 0.31058 2006 3 1 53795 0.0918 0.3288 0.30906 2006 3 2 53796 0.0914 0.3285 0.30749 2006 3 3 53797 0.0910 0.3281 0.30605 2006 3 4 53798 0.0906 0.3277 0.30488 2006 3 5 53799 0.0902 0.3274 0.30403 2006 3 6 53800 0.0897 0.3270 0.30348 2006 3 7 53801 0.0893 0.3267 0.30313 2006 3 8 53802 0.0889 0.3264 0.30289 2006 3 9 53803 0.0885 0.3261 0.30265 2006 3 10 53804 0.0881 0.3258 0.30234 2006 3 11 53805 0.0876 0.3255 0.30188 2006 3 12 53806 0.0872 0.3252 0.30126 2006 3 13 53807 0.0868 0.3249 0.30045 2006 3 14 53808 0.0864 0.3247 0.29947 2006 3 15 53809 0.0859 0.3244 0.29837 2006 3 16 53810 0.0855 0.3242 0.29720 2006 3 17 53811 0.0851 0.3240 0.29606 2006 3 18 53812 0.0847 0.3237 0.29499 2006 3 19 53813 0.0842 0.3235 0.29406 2006 3 20 53814 0.0838 0.3233 0.29331 2006 3 21 53815 0.0834 0.3231 0.29274 2006 3 22 53816 0.0830 0.3230 0.29230 2006 3 23 53817 0.0826 0.3228 0.29192 2006 3 24 53818 0.0822 0.3226 0.29148 2006 3 25 53819 0.0817 0.3225 0.29083 2006 3 26 53820 0.0813 0.3223 0.28988 2006 3 27 53821 0.0809 0.3222 0.28858 2006 3 28 53822 0.0805 0.3220 0.28697 2006 3 29 53823 0.0801 0.3219 0.28522 2006 3 30 53824 0.0798 0.3218 0.28350 2006 3 31 53825 0.0794 0.3217 0.28198 2006 4 1 53826 0.0790 0.3216 0.28079 2006 4 2 53827 0.0786 0.3215 0.27993 2006 4 3 53828 0.0782 0.3214 0.27934 2006 4 4 53829 0.0779 0.3213 0.27891 2006 4 5 53830 0.0775 0.3213 0.27854 2006 4 6 53831 0.0772 0.3212 0.27812 2006 4 7 53832 0.0768 0.3211 0.27760 2006 4 8 53833 0.0765 0.3211 0.27692 2006 4 9 53834 0.0761 0.3210 0.27608 2006 4 10 53835 0.0758 0.3210 0.27508 2006 4 11 53836 0.0755 0.3210 0.27395 2006 4 12 53837 0.0752 0.3209 0.27276 2006 4 13 53838 0.0749 0.3209 0.27158 2006 4 14 53839 0.0746 0.3209 0.27048 2006 4 15 53840 0.0743 0.3209 0.26952 2006 4 16 53841 0.0740 0.3208 0.26875 2006 4 17 53842 0.0737 0.3208 0.26817 2006 4 18 53843 0.0735 0.3208 0.26777 2006 4 19 53844 0.0732 0.3208 0.26747 2006 4 20 53845 0.0730 0.3208 0.26715 2006 4 21 53846 0.0727 0.3208 0.26670 2006 4 22 53847 0.0725 0.3208 0.26600 2006 4 23 53848 0.0723 0.3208 0.26499 2006 4 24 53849 0.0721 0.3208 0.26368 2006 4 25 53850 0.0719 0.3209 0.26215 2006 4 26 53851 0.0717 0.3209 0.26055 2006 4 27 53852 0.0715 0.3209 0.25905 2006 4 28 53853 0.0713 0.3209 0.25780 2006 4 29 53854 0.0711 0.3209 0.25684 2006 4 30 53855 0.0709 0.3209 0.25618 2006 5 1 53856 0.0707 0.3209 0.25572 2006 5 2 53857 0.0706 0.3209 0.25536 2006 5 3 53858 0.0704 0.3209 0.25502 2006 5 4 53859 0.0703 0.3209 0.25461 2006 5 5 53860 0.0701 0.3209 0.25412 2006 5 6 53861 0.0700 0.3209 0.25351 2006 5 7 53862 0.0699 0.3209 0.25280 2006 5 8 53863 0.0698 0.3208 0.25203 2006 5 9 53864 0.0697 0.3208 0.25124 2006 5 10 53865 0.0696 0.3208 0.25051 2006 5 11 53866 0.0695 0.3208 0.24991 2006 5 12 53867 0.0694 0.3208 0.24950 2006 5 13 53868 0.0693 0.3207 0.24934 2006 5 14 53869 0.0692 0.3207 0.24944 2006 5 15 53870 0.0692 0.3207 0.24976 2006 5 16 53871 0.0691 0.3206 0.25023 2006 5 17 53872 0.0691 0.3206 0.25074 2006 5 18 53873 0.0690 0.3205 0.25117 2006 5 19 53874 0.0690 0.3205 0.25140 2006 5 20 53875 0.0690 0.3204 0.25139 2006 5 21 53876 0.0689 0.3203 0.25111 2006 5 22 53877 0.0689 0.3203 0.25061 2006 5 23 53878 0.0689 0.3202 0.25000 2006 5 24 53879 0.0689 0.3201 0.24943 2006 5 25 53880 0.0689 0.3200 0.24906 2006 5 26 53881 0.0689 0.3199 0.24898 2006 5 27 53882 0.0689 0.3198 0.24920 2006 5 28 53883 0.0689 0.3197 0.24969 2006 5 29 53884 0.0689 0.3195 0.25038 2006 5 30 53885 0.0689 0.3194 0.25116 2006 5 31 53886 0.0689 0.3193 0.25195 2006 6 1 53887 0.0689 0.3191 0.25261 2006 6 2 53888 0.0690 0.3190 0.25308 2006 6 3 53889 0.0690 0.3188 0.25341 2006 6 4 53890 0.0690 0.3187 0.25363 2006 6 5 53891 0.0690 0.3185 0.25376 2006 6 6 53892 0.0690 0.3183 0.25381 2006 6 7 53893 0.0691 0.3181 0.25381 2006 6 8 53894 0.0691 0.3179 0.25384 2006 6 9 53895 0.0691 0.3177 0.25399 2006 6 10 53896 0.0691 0.3175 0.25434 2006 6 11 53897 0.0691 0.3173 0.25492 2006 6 12 53898 0.0692 0.3170 0.25559 2006 6 13 53899 0.0692 0.3168 0.25617 2006 6 14 53900 0.0692 0.3165 0.25654 2006 6 15 53901 0.0692 0.3163 0.25659 2006 6 16 53902 0.0692 0.3160 0.25627 2006 6 17 53903 0.0692 0.3157 0.25561 2006 6 18 53904 0.0692 0.3155 0.25478 2006 6 19 53905 0.0692 0.3152 0.25388 2006 6 20 53906 0.0692 0.3149 0.25305 2006 6 21 53907 0.0692 0.3146 0.25245 2006 6 22 53908 0.0691 0.3143 0.25212 2006 6 23 53909 0.0691 0.3139 0.25205 2006 6 24 53910 0.0691 0.3136 0.25230 2006 6 25 53911 0.0690 0.3133 0.25274 2006 6 26 53912 0.0690 0.3129 0.25328 2006 6 27 53913 0.0689 0.3126 0.25377 2006 6 28 53914 0.0688 0.3122 0.25415 2006 6 29 53915 0.0688 0.3119 0.25440 2006 6 30 53916 0.0687 0.3115 0.25453 2006 7 1 53917 0.0686 0.3111 0.25461 2006 7 2 53918 0.0685 0.3107 0.25471 2006 7 3 53919 0.0684 0.3103 0.25476 2006 7 4 53920 0.0682 0.3099 0.25481 2006 7 5 53921 0.0681 0.3095 0.25488 2006 7 6 53922 0.0680 0.3091 0.25506 2006 7 7 53923 0.0678 0.3087 0.25541 2006 7 8 53924 0.0676 0.3083 0.25599 2006 7 9 53925 0.0674 0.3079 0.25680 2006 7 10 53926 0.0673 0.3075 0.25773 2006 7 11 53927 0.0670 0.3071 0.25868 2006 7 12 53928 0.0668 0.3066 0.25944 2006 7 13 53929 0.0666 0.3062 0.25989 2006 7 14 53930 0.0663 0.3058 0.26010 2006 7 15 53931 0.0661 0.3053 0.26019 2006 7 16 53932 0.0658 0.3049 0.26018 2006 7 17 53933 0.0655 0.3044 0.26023 2006 7 18 53934 0.0652 0.3040 0.26048 2006 7 19 53935 0.0649 0.3035 0.26104 2006 7 20 53936 0.0646 0.3031 0.26190 2006 7 21 53937 0.0642 0.3027 0.26299 2006 7 22 53938 0.0639 0.3022 0.26420 2006 7 23 53939 0.0635 0.3018 0.26544 2006 7 24 53940 0.0631 0.3013 0.26665 2006 7 25 53941 0.0627 0.3009 0.26772 2006 7 26 53942 0.0623 0.3004 0.26855 2006 7 27 53943 0.0618 0.3000 0.26912 2006 7 28 53944 0.0614 0.2996 0.26946 2006 7 29 53945 0.0609 0.2991 0.26963 2006 7 30 53946 0.0604 0.2987 0.26972 2006 7 31 53947 0.0599 0.2983 0.26984 2006 8 1 53948 0.0594 0.2978 0.26999 2006 8 2 53949 0.0589 0.2974 0.27026 2006 8 3 53950 0.0583 0.2970 0.27070 2006 8 4 53951 0.0577 0.2966 0.27134 2006 8 5 53952 0.0572 0.2962 0.27213 2006 8 6 53953 0.0566 0.2958 0.27300 2006 8 7 53954 0.0560 0.2954 0.27385 2006 8 8 53955 0.0553 0.2950 0.27458 2006 8 9 53956 0.0547 0.2946 0.27509 2006 8 10 53957 0.0540 0.2943 0.27525 2006 8 11 53958 0.0533 0.2939 0.27513 2006 8 12 53959 0.0526 0.2936 0.27488 2006 8 13 53960 0.0519 0.2932 0.27461 2006 8 14 53961 0.0512 0.2929 0.27445 2006 8 15 53962 0.0505 0.2925 0.27456 2006 8 16 53963 0.0497 0.2922 0.27500 2006 8 17 53964 0.0489 0.2919 0.27574 2006 8 18 53965 0.0482 0.2916 0.27666 2006 8 19 53966 0.0474 0.2914 0.27769 2006 8 20 53967 0.0466 0.2911 0.27873 2006 8 21 53968 0.0457 0.2908 0.27968 2006 8 22 53969 0.0449 0.2906 0.28039 2006 8 23 53970 0.0440 0.2903 0.28090 2006 8 24 53971 0.0432 0.2901 0.28122 2006 8 25 53972 0.0423 0.2899 0.28140 2006 8 26 53973 0.0414 0.2897 0.28145 2006 8 27 53974 0.0405 0.2895 0.28141 2006 8 28 53975 0.0396 0.2894 0.28141 2006 8 29 53976 0.0387 0.2892 0.28155 2006 8 30 53977 0.0377 0.2891 0.28175 2006 8 31 53978 0.0368 0.2890 0.28210 2006 9 1 53979 0.0358 0.2889 0.28262 2006 9 2 53980 0.0348 0.2888 0.28323 2006 9 3 53981 0.0339 0.2887 0.28387 2006 9 4 53982 0.0329 0.2887 0.28439 2006 9 5 53983 0.0319 0.2886 0.28468 2006 9 6 53984 0.0309 0.2886 0.28468 2006 9 7 53985 0.0298 0.2886 0.28431 2006 9 8 53986 0.0288 0.2886 0.28361 2006 9 9 53987 0.0278 0.2886 0.28275 2006 9 10 53988 0.0268 0.2887 0.28201 2006 9 11 53989 0.0257 0.2888 0.28145 2006 9 12 53990 0.0247 0.2888 0.28123 2006 9 13 53991 0.0236 0.2890 0.28137 2006 9 14 53992 0.0225 0.2891 0.28177 2006 9 15 53993 0.0215 0.2892 0.28233 2006 9 16 53994 0.0204 0.2894 0.28291 2006 9 17 53995 0.0193 0.2896 0.28337 2006 9 18 53996 0.0183 0.2898 0.28369 2006 9 19 53997 0.0172 0.2900 0.28388 2006 9 20 53998 0.0161 0.2902 0.28383 2006 9 21 53999 0.0150 0.2905 0.28362 2006 9 22 54000 0.0139 0.2908 0.28329 2006 9 23 54001 0.0129 0.2911 0.28289 2006 9 24 54002 0.0118 0.2914 0.28248 2006 9 25 54003 0.0107 0.2917 0.28216 2006 9 26 54004 0.0096 0.2921 0.28196 2006 9 27 54005 0.0085 0.2925 0.28193 2006 9 28 54006 0.0075 0.2929 0.28206 2006 9 29 54007 0.0064 0.2933 0.28230 2006 9 30 54008 0.0053 0.2937 0.28259 2006 10 1 54009 0.0042 0.2942 0.28283 2006 10 2 54010 0.0032 0.2947 0.28290 2006 10 3 54011 0.0021 0.2952 0.28268 2006 10 4 54012 0.0011 0.2957 0.28209 2006 10 5 54013 0.0000 0.2962 0.28114 2006 10 6 54014 -0.0010 0.2968 0.27992 2006 10 7 54015 -0.0021 0.2974 0.27860 2006 10 8 54016 -0.0031 0.2980 0.27749 2006 10 9 54017 -0.0041 0.2986 0.27666 2006 10 10 54018 -0.0051 0.2992 0.27620 2006 10 11 54019 -0.0061 0.2999 0.27610 2006 10 12 54020 -0.0071 0.3005 0.27624 2006 10 13 54021 -0.0081 0.3012 0.27648 2006 10 14 54022 -0.0091 0.3019 0.27672 2006 10 15 54023 -0.0101 0.3027 0.27687 2006 10 16 54024 -0.0110 0.3034 0.27685 2006 10 17 54025 -0.0120 0.3042 0.27664 2006 10 18 54026 -0.0129 0.3050 0.27628 2006 10 19 54027 -0.0138 0.3058 0.27584 2006 10 20 54028 -0.0147 0.3066 0.27534 These predictions are based on all announced leap seconds. CELESTIAL POLE OFFSET SERIES: NEOS Celestial Pole Offset Series MJD dpsi error deps error (msec. of arc) 53644 -63.43 .30 -4.01 .34 53645 -63.43 .31 -3.74 .10 53646 -63.48 .31 -3.66 .10 53647 -63.59 .31 -3.80 .12 53648 -63.71 .27 -4.02 .10 53649 -63.73 .27 -4.19 .10 53650 -63.66 .27 -4.25 .10 53651 -63.54 .22 -4.25 .34 53652 -63.36 .28 -4.28 .34 53653 -63.03 .28 -4.36 .34 53654 -62.53 .33 -4.41 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53644 0.280 0.119 -0.036 0.340 53645 0.272 0.123 -0.036 0.100 53646 0.253 0.123 -0.042 0.100 53647 0.235 0.123 -0.050 0.120 53648 0.224 0.107 -0.048 0.100 53649 0.228 0.107 -0.061 0.100 53650 0.231 0.107 -0.079 0.100 53651 0.239 0.088 -0.091 0.340 53652 0.263 0.111 -0.108 0.340 53653 0.301 0.111 -0.125 0.340 53654 0.323 0.131 -0.117 0.340 The IERS Conventions recommended software to predict celestial pole offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/ ceppred.f and software for the calculation of the dX and dY with respect to IAU2000A Nutation/Precession Theory can be found at the web site in section chapter 5. ************************************************************************** Important Notices - Important Notices - Important Notices ************************************************************************** No leap second was introduced in UTC on 30 June 2005. On 04 July 2005, the annoucement was made that a positive leap second will be introduced in UTC on 31 December 2005. The sequence of dates of the UTC second markers will be: 2005 December 31, 23h 59m 59s 2005 December 31, 23h 59m 60s 2006 January 1, 0h 0m 0s The difference between UTC and the International Atomic Time (TAI) is: from 1999 January 1, 0h UTC, to 2006 January 1 0h UTC : UTC-TAI = - 32s from 2006 January 1, 0h UTC, until further notice : UTC-TAI = - 33s ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information ************************************************************************** Resolutions passed at the 24th General Assembly of the International Astronomical Union (IAU) recommend the implementation of a number of new procedures concerning the transformation between the celestial and terrestrial reference systems. Information regarding these procedures is available in Chapter 5 of the IERS Conventions 2003 available at . With these resolutions, beginning on 1 January 2003, IERS Bulletins A and B will publish new products in addition to those already published. These products will include the celestial pole offsets X_obs-X_IAU2000A and Y_obs-Y_IAU2000A where X_obs and Y_obs are the observed X, Y coordinates of the Celestial Intermediate Pole in the Geocentric Celestial Reference System, and X_IAU2000A and Y_IAU2000A are the celestial pole coordinates provided by using the IAU2000A Precession-Nutation theory. It is expected that Celestial Pole offsets related to the IAU1980 Nutation Theory will continue to be published through 30 September 2005. The new celestial pole offsets related to the new IAU2000A Precession-Nutation theory will be produced in a separate data file as well as appended to to this file. ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information **************************************************************************