********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 December 2005 Vol. XVIII No. 052 ______________________________________________________________________ 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 12 23 53727 .06185 .00004 .38737 .00010 -.656833 .000010 5 12 24 53728 .06124 .00004 .38711 .00011 -.657763 .000010 5 12 25 53729 .06063 .00016 .38699 .00011 -.658682 .000010 5 12 26 53730 .05955 .00015 .38700 .00009 -.659544 .000013 5 12 27 53731 .05826 .00015 .38685 .00008 -.660274 .000013 5 12 28 53732 .05703 .00016 .38632 .00005 -.660783 .000013 5 12 29 53733 .05598 .00017 .38543 .00006 -.661069 .000013 _______________________________________________________________________ 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 = .0370 - .0546 cos A - .1309 sin A + .0826 cos C + .1492 sin C y = .3549 - .1272 cos A + .0515 sin A + .1492 cos C - .0826 sin C UT1-UTC = .3343 - .00042 (MJD - 53737) - (UT2-UT1) where A = 2*pi*(MJD-53733)/365.25 and C = 2*pi*(MJD-53733)/435. TAI-UTC(MJD 53734) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53733)**0.80 S t = 0.00025 (MJD-53733)**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 12 30 53734 0.0551 0.3845 -0.66118 2005 12 31 53735 0.0543 0.3837 -0.66122 2006 1 1 53736 0.0537 0.3829 0.33868 2006 1 2 53737 0.0532 0.3823 0.33838 2006 1 3 53738 0.0527 0.3817 0.33779 2006 1 4 53739 0.0524 0.3811 0.33690 2006 1 5 53740 0.0521 0.3806 0.33580 2006 1 6 53741 0.0519 0.3802 0.33461 2006 1 7 53742 0.0518 0.3798 0.33350 2006 1 8 53743 0.0517 0.3795 0.33258 2006 1 9 53744 0.0517 0.3791 0.33192 2006 1 10 53745 0.0518 0.3788 0.33152 2006 1 11 53746 0.0518 0.3786 0.33136 2006 1 12 53747 0.0520 0.3783 0.33136 2006 1 13 53748 0.0522 0.3781 0.33145 2006 1 14 53749 0.0524 0.3778 0.33154 2006 1 15 53750 0.0526 0.3776 0.33157 2006 1 16 53751 0.0529 0.3774 0.33148 2006 1 17 53752 0.0532 0.3772 0.33122 2006 1 18 53753 0.0535 0.3771 0.33080 2006 1 19 53754 0.0539 0.3769 0.33023 2006 1 20 53755 0.0542 0.3767 0.32957 2006 1 21 53756 0.0546 0.3765 0.32888 2006 1 22 53757 0.0550 0.3764 0.32821 2006 1 23 53758 0.0554 0.3762 0.32764 2006 1 24 53759 0.0558 0.3760 0.32720 2006 1 25 53760 0.0563 0.3758 0.32694 2006 1 26 53761 0.0567 0.3757 0.32684 2006 1 27 53762 0.0572 0.3755 0.32683 2006 1 28 53763 0.0576 0.3753 0.32678 2006 1 29 53764 0.0581 0.3752 0.32654 2006 1 30 53765 0.0585 0.3750 0.32601 2006 1 31 53766 0.0590 0.3748 0.32515 2006 2 1 53767 0.0595 0.3746 0.32402 2006 2 2 53768 0.0599 0.3745 0.32276 2006 2 3 53769 0.0604 0.3743 0.32154 2006 2 4 53770 0.0609 0.3741 0.32052 2006 2 5 53771 0.0614 0.3739 0.31979 2006 2 6 53772 0.0618 0.3737 0.31936 2006 2 7 53773 0.0623 0.3735 0.31917 2006 2 8 53774 0.0628 0.3733 0.31915 2006 2 9 53775 0.0632 0.3731 0.31920 2006 2 10 53776 0.0637 0.3729 0.31925 2006 2 11 53777 0.0641 0.3727 0.31921 2006 2 12 53778 0.0646 0.3725 0.31903 2006 2 13 53779 0.0651 0.3723 0.31867 2006 2 14 53780 0.0655 0.3721 0.31814 2006 2 15 53781 0.0660 0.3719 0.31745 2006 2 16 53782 0.0664 0.3717 0.31666 2006 2 17 53783 0.0668 0.3715 0.31584 2006 2 18 53784 0.0673 0.3713 0.31504 2006 2 19 53785 0.0677 0.3711 0.31433 2006 2 20 53786 0.0681 0.3708 0.31376 2006 2 21 53787 0.0685 0.3706 0.31336 2006 2 22 53788 0.0690 0.3704 0.31312 2006 2 23 53789 0.0694 0.3702 0.31299 2006 2 24 53790 0.0698 0.3700 0.31286 2006 2 25 53791 0.0702 0.3697 0.31260 2006 2 26 53792 0.0706 0.3695 0.31206 2006 2 27 53793 0.0710 0.3693 0.31117 2006 2 28 53794 0.0713 0.3691 0.30992 2006 3 1 53795 0.0717 0.3688 0.30843 2006 3 2 53796 0.0721 0.3686 0.30689 2006 3 3 53797 0.0725 0.3684 0.30548 2006 3 4 53798 0.0728 0.3681 0.30435 2006 3 5 53799 0.0732 0.3679 0.30354 2006 3 6 53800 0.0736 0.3677 0.30304 2006 3 7 53801 0.0739 0.3674 0.30275 2006 3 8 53802 0.0743 0.3672 0.30257 2006 3 9 53803 0.0746 0.3670 0.30239 2006 3 10 53804 0.0750 0.3667 0.30214 2006 3 11 53805 0.0753 0.3665 0.30174 2006 3 12 53806 0.0756 0.3663 0.30117 2006 3 13 53807 0.0759 0.3660 0.30041 2006 3 14 53808 0.0763 0.3658 0.29947 2006 3 15 53809 0.0766 0.3656 0.29841 2006 3 16 53810 0.0769 0.3653 0.29727 2006 3 17 53811 0.0772 0.3652 0.29614 2006 3 18 53812 0.0775 0.3649 0.29508 2006 3 19 53813 0.0778 0.3647 0.29416 2006 3 20 53814 0.0781 0.3644 0.29341 2006 3 21 53815 0.0784 0.3642 0.29283 2006 3 22 53816 0.0787 0.3639 0.29238 2006 3 23 53817 0.0790 0.3637 0.29198 2006 3 24 53818 0.0793 0.3634 0.29152 2006 3 25 53819 0.0796 0.3632 0.29086 2006 3 26 53820 0.0798 0.3629 0.28989 2006 3 27 53821 0.0801 0.3627 0.28857 2006 3 28 53822 0.0804 0.3624 0.28695 2006 3 29 53823 0.0807 0.3622 0.28519 2006 3 30 53824 0.0809 0.3619 0.28346 2006 3 31 53825 0.0812 0.3617 0.28195 2006 4 1 53826 0.0814 0.3614 0.28076 2006 4 2 53827 0.0817 0.3611 0.27990 2006 4 3 53828 0.0820 0.3609 0.27932 2006 4 4 53829 0.0822 0.3606 0.27890 2006 4 5 53830 0.0825 0.3603 0.27854 2006 4 6 53831 0.0827 0.3601 0.27814 2006 4 7 53832 0.0830 0.3598 0.27764 2006 4 8 53833 0.0832 0.3595 0.27697 2006 4 9 53834 0.0835 0.3592 0.27614 2006 4 10 53835 0.0838 0.3590 0.27514 2006 4 11 53836 0.0840 0.3587 0.27402 2006 4 12 53837 0.0842 0.3584 0.27283 2006 4 13 53838 0.0845 0.3581 0.27167 2006 4 14 53839 0.0847 0.3578 0.27059 2006 4 15 53840 0.0850 0.3575 0.26965 2006 4 16 53841 0.0855 0.3572 0.26890 2006 4 17 53842 0.0857 0.3569 0.26835 2006 4 18 53843 0.0860 0.3566 0.26796 2006 4 19 53844 0.0862 0.3563 0.26767 2006 4 20 53845 0.0864 0.3560 0.26738 2006 4 21 53846 0.0867 0.3557 0.26695 2006 4 22 53847 0.0869 0.3554 0.26628 2006 4 23 53848 0.0871 0.3550 0.26531 2006 4 24 53849 0.0874 0.3547 0.26404 2006 4 25 53850 0.0876 0.3544 0.26258 2006 4 26 53851 0.0879 0.3540 0.26108 2006 4 27 53852 0.0881 0.3537 0.25971 2006 4 28 53853 0.0884 0.3533 0.25863 2006 4 29 53854 0.0886 0.3530 0.25787 2006 4 30 53855 0.0889 0.3526 0.25744 2006 5 1 53856 0.0891 0.3522 0.25722 2006 5 2 53857 0.0894 0.3519 0.25713 2006 5 3 53858 0.0896 0.3515 0.25703 2006 5 4 53859 0.0899 0.3511 0.25685 2006 5 5 53860 0.0901 0.3507 0.25655 2006 5 6 53861 0.0904 0.3503 0.25608 2006 5 7 53862 0.0906 0.3499 0.25547 2006 5 8 53863 0.0909 0.3495 0.25473 2006 5 9 53864 0.0911 0.3491 0.25392 2006 5 10 53865 0.0914 0.3487 0.25311 2006 5 11 53866 0.0917 0.3482 0.25235 2006 5 12 53867 0.0919 0.3478 0.25173 2006 5 13 53868 0.0922 0.3473 0.25129 2006 5 14 53869 0.0925 0.3469 0.25106 2006 5 15 53870 0.0927 0.3464 0.25103 2006 5 16 53871 0.0930 0.3459 0.25112 2006 5 17 53872 0.0933 0.3455 0.25123 2006 5 18 53873 0.0935 0.3450 0.25125 2006 5 19 53874 0.0938 0.3445 0.25107 2006 5 20 53875 0.0941 0.3440 0.25062 2006 5 21 53876 0.0943 0.3435 0.24992 2006 5 22 53877 0.0946 0.3429 0.24901 2006 5 23 53878 0.0949 0.3424 0.24804 2006 5 24 53879 0.0951 0.3419 0.24714 2006 5 25 53880 0.0954 0.3413 0.24647 2006 5 26 53881 0.0957 0.3408 0.24610 2006 5 27 53882 0.0959 0.3402 0.24605 2006 5 28 53883 0.0962 0.3396 0.24625 2006 5 29 53884 0.0965 0.3391 0.24661 2006 5 30 53885 0.0967 0.3385 0.24702 2006 5 31 53886 0.0970 0.3379 0.24737 2006 6 1 53887 0.0972 0.3372 0.24760 2006 6 2 53888 0.0975 0.3366 0.24768 2006 6 3 53889 0.0978 0.3360 0.24762 2006 6 4 53890 0.0980 0.3354 0.24742 2006 6 5 53891 0.0983 0.3347 0.24715 2006 6 6 53892 0.0985 0.3340 0.24686 2006 6 7 53893 0.0988 0.3334 0.24661 2006 6 8 53894 0.0990 0.3327 0.24648 2006 6 9 53895 0.0992 0.3320 0.24651 2006 6 10 53896 0.0995 0.3313 0.24674 2006 6 11 53897 0.0997 0.3306 0.24717 2006 6 12 53898 0.0999 0.3299 0.24775 2006 6 13 53899 0.1001 0.3292 0.24839 2006 6 14 53900 0.1003 0.3284 0.24896 2006 6 15 53901 0.1005 0.3277 0.24934 2006 6 16 53902 0.1007 0.3270 0.24947 2006 6 17 53903 0.1009 0.3262 0.24933 2006 6 18 53904 0.1011 0.3254 0.24900 2006 6 19 53905 0.1013 0.3246 0.24858 2006 6 20 53906 0.1015 0.3239 0.24823 2006 6 21 53907 0.1016 0.3231 0.24807 2006 6 22 53908 0.1018 0.3223 0.24818 2006 6 23 53909 0.1019 0.3214 0.24859 2006 6 24 53910 0.1021 0.3206 0.24926 2006 6 25 53911 0.1022 0.3198 0.25011 2006 6 26 53912 0.1023 0.3190 0.25102 2006 6 27 53913 0.1024 0.3181 0.25190 2006 6 28 53914 0.1025 0.3173 0.25265 2006 6 29 53915 0.1026 0.3164 0.25325 2006 6 30 53916 0.1026 0.3155 0.25367 2006 7 1 53917 0.1027 0.3147 0.25393 2006 7 2 53918 0.1028 0.3138 0.25408 2006 7 3 53919 0.1028 0.3129 0.25416 2006 7 4 53920 0.1028 0.3120 0.25425 2006 7 5 53921 0.1028 0.3111 0.25441 2006 7 6 53922 0.1028 0.3102 0.25469 2006 7 7 53923 0.1028 0.3093 0.25516 2006 7 8 53924 0.1027 0.3084 0.25582 2006 7 9 53925 0.1026 0.3075 0.25667 2006 7 10 53926 0.1024 0.3066 0.25762 2006 7 11 53927 0.1023 0.3057 0.25856 2006 7 12 53928 0.1021 0.3048 0.25935 2006 7 13 53929 0.1019 0.3039 0.25987 2006 7 14 53930 0.1017 0.3030 0.26008 2006 7 15 53931 0.1015 0.3021 0.26003 2006 7 16 53932 0.1013 0.3011 0.25985 2006 7 17 53933 0.1010 0.3002 0.25967 2006 7 18 53934 0.1008 0.2993 0.25966 2006 7 19 53935 0.1005 0.2984 0.25989 2006 7 20 53936 0.1001 0.2974 0.26041 2006 7 21 53937 0.0998 0.2965 0.26119 2006 7 22 53938 0.0995 0.2956 0.26215 2006 7 23 53939 0.0991 0.2947 0.26320 2006 7 24 53940 0.0987 0.2937 0.26424 2006 7 25 53941 0.0983 0.2928 0.26520 2006 7 26 53942 0.0978 0.2919 0.26600 2006 7 27 53943 0.0974 0.2910 0.26663 2006 7 28 53944 0.0969 0.2900 0.26708 2006 7 29 53945 0.0964 0.2891 0.26740 2006 7 30 53946 0.0959 0.2882 0.26765 2006 7 31 53947 0.0953 0.2873 0.26788 2006 8 1 53948 0.0947 0.2864 0.26817 2006 8 2 53949 0.0941 0.2855 0.26860 2006 8 3 53950 0.0935 0.2846 0.26920 2006 8 4 53951 0.0929 0.2837 0.26996 2006 8 5 53952 0.0922 0.2828 0.27085 2006 8 6 53953 0.0915 0.2819 0.27186 2006 8 7 53954 0.0908 0.2811 0.27292 2006 8 8 53955 0.0901 0.2802 0.27387 2006 8 9 53956 0.0893 0.2793 0.27456 2006 8 10 53957 0.0885 0.2785 0.27492 2006 8 11 53958 0.0877 0.2776 0.27497 2006 8 12 53959 0.0868 0.2768 0.27477 2006 8 13 53960 0.0860 0.2760 0.27444 2006 8 14 53961 0.0851 0.2752 0.27417 2006 8 15 53962 0.0842 0.2744 0.27409 2006 8 16 53963 0.0832 0.2736 0.27428 2006 8 17 53964 0.0822 0.2728 0.27477 2006 8 18 53965 0.0812 0.2720 0.27539 2006 8 19 53966 0.0802 0.2713 0.27610 2006 8 20 53967 0.0792 0.2705 0.27677 2006 8 21 53968 0.0781 0.2698 0.27728 2006 8 22 53969 0.0770 0.2691 0.27761 2006 8 23 53970 0.0759 0.2684 0.27778 2006 8 24 53971 0.0747 0.2677 0.27778 2006 8 25 53972 0.0736 0.2671 0.27757 2006 8 26 53973 0.0724 0.2664 0.27729 2006 8 27 53974 0.0711 0.2658 0.27697 2006 8 28 53975 0.0699 0.2652 0.27670 2006 8 29 53976 0.0686 0.2646 0.27654 2006 8 30 53977 0.0673 0.2640 0.27654 2006 8 31 53978 0.0660 0.2634 0.27676 2006 9 1 53979 0.0647 0.2629 0.27715 2006 9 2 53980 0.0633 0.2623 0.27761 2006 9 3 53981 0.0619 0.2618 0.27809 2006 9 4 53982 0.0605 0.2614 0.27849 2006 9 5 53983 0.0591 0.2609 0.27865 2006 9 6 53984 0.0576 0.2604 0.27847 2006 9 7 53985 0.0561 0.2600 0.27790 2006 9 8 53986 0.0546 0.2596 0.27705 2006 9 9 53987 0.0531 0.2593 0.27599 2006 9 10 53988 0.0516 0.2589 0.27493 2006 9 11 53989 0.0500 0.2586 0.27408 2006 9 12 53990 0.0484 0.2583 0.27358 2006 9 13 53991 0.0468 0.2580 0.27345 2006 9 14 53992 0.0452 0.2577 0.27363 2006 9 15 53993 0.0436 0.2575 0.27393 2006 9 16 53994 0.0419 0.2573 0.27427 2006 9 17 53995 0.0402 0.2571 0.27451 2006 9 18 53996 0.0385 0.2569 0.27460 2006 9 19 53997 0.0368 0.2568 0.27452 2006 9 20 53998 0.0351 0.2567 0.27428 2006 9 21 53999 0.0334 0.2566 0.27394 2006 9 22 54000 0.0316 0.2566 0.27355 2006 9 23 54001 0.0298 0.2566 0.27320 2006 9 24 54002 0.0281 0.2566 0.27299 2006 9 25 54003 0.0263 0.2566 0.27289 2006 9 26 54004 0.0245 0.2567 0.27295 2006 9 27 54005 0.0226 0.2567 0.27309 2006 9 28 54006 0.0208 0.2569 0.27337 2006 9 29 54007 0.0190 0.2570 0.27383 2006 9 30 54008 0.0171 0.2572 0.27439 2006 10 1 54009 0.0153 0.2574 0.27489 2006 10 2 54010 0.0134 0.2576 0.27517 2006 10 3 54011 0.0115 0.2579 0.27520 2006 10 4 54012 0.0096 0.2582 0.27490 2006 10 5 54013 0.0077 0.2585 0.27432 2006 10 6 54014 0.0059 0.2588 0.27347 2006 10 7 54015 0.0040 0.2592 0.27251 2006 10 8 54016 0.0021 0.2596 0.27163 2006 10 9 54017 0.0001 0.2601 0.27101 2006 10 10 54018 -0.0018 0.2606 0.27072 2006 10 11 54019 -0.0037 0.2611 0.27071 2006 10 12 54020 -0.0056 0.2616 0.27089 2006 10 13 54021 -0.0075 0.2622 0.27114 2006 10 14 54022 -0.0094 0.2628 0.27138 2006 10 15 54023 -0.0113 0.2634 0.27156 2006 10 16 54024 -0.0132 0.2640 0.27161 2006 10 17 54025 -0.0151 0.2647 0.27147 2006 10 18 54026 -0.0170 0.2654 0.27114 2006 10 19 54027 -0.0189 0.2662 0.27069 2006 10 20 54028 -0.0208 0.2670 0.27022 2006 10 21 54029 -0.0227 0.2678 0.26974 2006 10 22 54030 -0.0245 0.2686 0.26927 2006 10 23 54031 -0.0264 0.2695 0.26884 2006 10 24 54032 -0.0283 0.2704 0.26850 2006 10 25 54033 -0.0301 0.2713 0.26829 2006 10 26 54034 -0.0319 0.2723 0.26821 2006 10 27 54035 -0.0338 0.2732 0.26825 2006 10 28 54036 -0.0356 0.2743 0.26823 2006 10 29 54037 -0.0374 0.2753 0.26794 2006 10 30 54038 -0.0392 0.2764 0.26728 2006 10 31 54039 -0.0409 0.2775 0.26621 2006 11 1 54040 -0.0427 0.2786 0.26471 2006 11 2 54041 -0.0444 0.2798 0.26288 2006 11 3 54042 -0.0461 0.2810 0.26095 2006 11 4 54043 -0.0478 0.2822 0.25908 2006 11 5 54044 -0.0495 0.2834 0.25743 2006 11 6 54045 -0.0512 0.2847 0.25613 2006 11 7 54046 -0.0529 0.2860 0.25517 2006 11 8 54047 -0.0545 0.2873 0.25444 2006 11 9 54048 -0.0561 0.2887 0.25388 2006 11 10 54049 -0.0577 0.2900 0.25335 2006 11 11 54050 -0.0592 0.2914 0.25275 2006 11 12 54051 -0.0608 0.2929 0.25198 2006 11 13 54052 -0.0623 0.2943 0.25104 2006 11 14 54053 -0.0638 0.2958 0.24997 2006 11 15 54054 -0.0652 0.2973 0.24885 2006 11 16 54055 -0.0667 0.2988 0.24776 2006 11 17 54056 -0.0681 0.3004 0.24679 2006 11 18 54057 -0.0695 0.3020 0.24588 2006 11 19 54058 -0.0708 0.3036 0.24507 2006 11 20 54059 -0.0722 0.3052 0.24438 2006 11 21 54060 -0.0735 0.3068 0.24384 2006 11 22 54061 -0.0747 0.3085 0.24346 2006 11 23 54062 -0.0760 0.3102 0.24323 2006 11 24 54063 -0.0772 0.3119 0.24310 2006 11 25 54064 -0.0783 0.3136 0.24295 2006 11 26 54065 -0.0795 0.3153 0.24266 2006 11 27 54066 -0.0806 0.3171 0.24212 2006 11 28 54067 -0.0817 0.3189 0.24125 2006 11 29 54068 -0.0827 0.3207 0.24022 2006 11 30 54069 -0.0837 0.3225 0.23919 2006 12 1 54070 -0.0847 0.3244 0.23818 2006 12 2 54071 -0.0857 0.3262 0.23735 2006 12 3 54072 -0.0866 0.3281 0.23680 2006 12 4 54073 -0.0874 0.3300 0.23661 2006 12 5 54074 -0.0883 0.3319 0.23672 2006 12 6 54075 -0.0891 0.3338 0.23697 2006 12 7 54076 -0.0898 0.3357 0.23719 2006 12 8 54077 -0.0906 0.3377 0.23733 2006 12 9 54078 -0.0912 0.3396 0.23732 2006 12 10 54079 -0.0919 0.3416 0.23711 2006 12 11 54080 -0.0925 0.3436 0.23665 2006 12 12 54081 -0.0931 0.3456 0.23600 2006 12 13 54082 -0.0936 0.3476 0.23523 2006 12 14 54083 -0.0941 0.3496 0.23442 2006 12 15 54084 -0.0946 0.3516 0.23364 2006 12 16 54085 -0.0950 0.3537 0.23302 2006 12 17 54086 -0.0954 0.3557 0.23253 2006 12 18 54087 -0.0957 0.3578 0.23223 2006 12 19 54088 -0.0960 0.3598 0.23212 2006 12 20 54089 -0.0963 0.3619 0.23218 2006 12 21 54090 -0.0965 0.3640 0.23230 2006 12 22 54091 -0.0967 0.3661 0.23233 2006 12 23 54092 -0.0968 0.3681 0.23220 2006 12 24 54093 -0.0969 0.3702 0.23185 2006 12 25 54094 -0.0970 0.3723 0.23126 2006 12 26 54095 -0.0970 0.3744 0.23043 2006 12 27 54096 -0.0970 0.3765 0.22952 2006 12 28 54097 -0.0970 0.3786 0.22867 2006 12 29 54098 -0.0969 0.3808 0.22796 These predictions are based on all announced leap seconds. 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 15 January 2006. 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 **************************************************************************