********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 December 2005 Vol. XVIII No. 050 ______________________________________________________________________ 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 9 53713 .06597 .00003 .39024 .00004 -.650284 .000010 5 12 10 53714 .06531 .00003 .38965 .00003 -.651251 .000011 5 12 11 53715 .06431 .00004 .38890 .00003 -.652132 .000012 5 12 12 53716 .06347 .00003 .38814 .00003 -.652900 .000013 5 12 13 53717 .06309 .00003 .38765 .00003 -.653478 .000013 5 12 14 53718 .06334 .00003 .38741 .00002 -.653837 .000015 5 12 15 53719 .06410 .00004 .38724 .00002 -.653999 .000014 _______________________________________________________________________ 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 = .0410 - .0180 cos A - .1323 sin A + .0527 cos C + .1543 sin C y = .3531 - .1290 cos A + .0171 sin A + .1543 cos C - .0527 sin C UT1-UTC = -.6581 - .00043 (MJD - 53724) - (UT2-UT1) where A = 2*pi*(MJD-53719)/365.25 and C = 2*pi*(MJD-53719)/435. TAI-UTC(MJD 53720) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53719)**0.80 S t = 0.00025 (MJD-53719)**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 16 53720 0.0649 0.3870 -0.65405 2005 12 17 53721 0.0656 0.3867 -0.65409 2005 12 18 53722 0.0662 0.3863 -0.65422 2005 12 19 53723 0.0667 0.3860 -0.65450 2005 12 20 53724 0.0672 0.3856 -0.65494 2005 12 21 53725 0.0676 0.3852 -0.65553 2005 12 22 53726 0.0680 0.3848 -0.65625 2005 12 23 53727 0.0683 0.3844 -0.65705 2005 12 24 53728 0.0686 0.3839 -0.65787 2005 12 25 53729 0.0688 0.3835 -0.65864 2005 12 26 53730 0.0691 0.3831 -0.65929 2005 12 27 53731 0.0693 0.3827 -0.65977 2005 12 28 53732 0.0695 0.3823 -0.66004 2005 12 29 53733 0.0697 0.3819 -0.66013 2005 12 30 53734 0.0699 0.3815 -0.66007 2005 12 31 53735 0.0700 0.3811 -0.65995 2006 1 1 53736 0.0702 0.3807 0.34007 2006 1 2 53737 0.0704 0.3803 0.33987 2006 1 3 53738 0.0705 0.3799 0.33936 2006 1 4 53739 0.0707 0.3795 0.33853 2006 1 5 53740 0.0708 0.3791 0.33751 2006 1 6 53741 0.0710 0.3787 0.33642 2006 1 7 53742 0.0711 0.3783 0.33542 2006 1 8 53743 0.0712 0.3779 0.33461 2006 1 9 53744 0.0714 0.3776 0.33407 2006 1 10 53745 0.0715 0.3772 0.33380 2006 1 11 53746 0.0717 0.3768 0.33376 2006 1 12 53747 0.0719 0.3764 0.33387 2006 1 13 53748 0.0720 0.3761 0.33405 2006 1 14 53749 0.0722 0.3757 0.33420 2006 1 15 53750 0.0723 0.3754 0.33426 2006 1 16 53751 0.0725 0.3750 0.33417 2006 1 17 53752 0.0727 0.3746 0.33391 2006 1 18 53753 0.0728 0.3743 0.33348 2006 1 19 53754 0.0730 0.3739 0.33292 2006 1 20 53755 0.0732 0.3736 0.33227 2006 1 21 53756 0.0733 0.3732 0.33159 2006 1 22 53757 0.0735 0.3729 0.33097 2006 1 23 53758 0.0737 0.3725 0.33045 2006 1 24 53759 0.0739 0.3722 0.33010 2006 1 25 53760 0.0740 0.3718 0.32994 2006 1 26 53761 0.0742 0.3715 0.32995 2006 1 27 53762 0.0744 0.3711 0.33005 2006 1 28 53763 0.0746 0.3708 0.33012 2006 1 29 53764 0.0748 0.3705 0.33001 2006 1 30 53765 0.0750 0.3701 0.32961 2006 1 31 53766 0.0751 0.3698 0.32886 2006 2 1 53767 0.0753 0.3694 0.32784 2006 2 2 53768 0.0755 0.3691 0.32669 2006 2 3 53769 0.0757 0.3688 0.32556 2006 2 4 53770 0.0759 0.3685 0.32462 2006 2 5 53771 0.0760 0.3681 0.32395 2006 2 6 53772 0.0762 0.3678 0.32356 2006 2 7 53773 0.0764 0.3675 0.32341 2006 2 8 53774 0.0766 0.3672 0.32342 2006 2 9 53775 0.0767 0.3669 0.32350 2006 2 10 53776 0.0769 0.3665 0.32355 2006 2 11 53777 0.0771 0.3662 0.32350 2006 2 12 53778 0.0773 0.3659 0.32331 2006 2 13 53779 0.0774 0.3656 0.32294 2006 2 14 53780 0.0776 0.3653 0.32239 2006 2 15 53781 0.0777 0.3650 0.32170 2006 2 16 53782 0.0779 0.3647 0.32090 2006 2 17 53783 0.0781 0.3644 0.32006 2006 2 18 53784 0.0782 0.3641 0.31924 2006 2 19 53785 0.0784 0.3638 0.31850 2006 2 20 53786 0.0785 0.3635 0.31790 2006 2 21 53787 0.0786 0.3632 0.31746 2006 2 22 53788 0.0788 0.3629 0.31718 2006 2 23 53789 0.0789 0.3626 0.31700 2006 2 24 53790 0.0790 0.3624 0.31682 2006 2 25 53791 0.0792 0.3621 0.31651 2006 2 26 53792 0.0793 0.3618 0.31591 2006 2 27 53793 0.0794 0.3615 0.31496 2006 2 28 53794 0.0795 0.3612 0.31365 2006 3 1 53795 0.0796 0.3610 0.31210 2006 3 2 53796 0.0797 0.3607 0.31049 2006 3 3 53797 0.0798 0.3604 0.30900 2006 3 4 53798 0.0799 0.3602 0.30778 2006 3 5 53799 0.0800 0.3599 0.30688 2006 3 6 53800 0.0801 0.3596 0.30627 2006 3 7 53801 0.0802 0.3594 0.30587 2006 3 8 53802 0.0803 0.3591 0.30558 2006 3 9 53803 0.0804 0.3588 0.30530 2006 3 10 53804 0.0805 0.3586 0.30495 2006 3 11 53805 0.0806 0.3583 0.30446 2006 3 12 53806 0.0807 0.3581 0.30379 2006 3 13 53807 0.0808 0.3578 0.30295 2006 3 14 53808 0.0809 0.3576 0.30194 2006 3 15 53809 0.0810 0.3573 0.30082 2006 3 16 53810 0.0810 0.3571 0.29964 2006 3 17 53811 0.0811 0.3569 0.29847 2006 3 18 53812 0.0812 0.3566 0.29739 2006 3 19 53813 0.0813 0.3564 0.29646 2006 3 20 53814 0.0813 0.3561 0.29569 2006 3 21 53815 0.0814 0.3559 0.29510 2006 3 22 53816 0.0815 0.3557 0.29465 2006 3 23 53817 0.0815 0.3554 0.29426 2006 3 24 53818 0.0816 0.3552 0.29380 2006 3 25 53819 0.0817 0.3550 0.29314 2006 3 26 53820 0.0817 0.3547 0.29218 2006 3 27 53821 0.0818 0.3545 0.29087 2006 3 28 53822 0.0819 0.3543 0.28926 2006 3 29 53823 0.0819 0.3541 0.28750 2006 3 30 53824 0.0820 0.3538 0.28578 2006 3 31 53825 0.0820 0.3536 0.28430 2006 4 1 53826 0.0821 0.3534 0.28315 2006 4 2 53827 0.0822 0.3531 0.28233 2006 4 3 53828 0.0822 0.3529 0.28178 2006 4 4 53829 0.0823 0.3527 0.28140 2006 4 5 53830 0.0824 0.3525 0.28107 2006 4 6 53831 0.0824 0.3522 0.28070 2006 4 7 53832 0.0825 0.3520 0.28023 2006 4 8 53833 0.0826 0.3518 0.27960 2006 4 9 53834 0.0826 0.3515 0.27880 2006 4 10 53835 0.0827 0.3513 0.27784 2006 4 11 53836 0.0828 0.3511 0.27676 2006 4 12 53837 0.0829 0.3508 0.27561 2006 4 13 53838 0.0829 0.3506 0.27446 2006 4 14 53839 0.0830 0.3504 0.27339 2006 4 15 53840 0.0831 0.3501 0.27246 2006 4 16 53841 0.0832 0.3499 0.27171 2006 4 17 53842 0.0833 0.3496 0.27116 2006 4 18 53843 0.0834 0.3494 0.27078 2006 4 19 53844 0.0835 0.3492 0.27049 2006 4 20 53845 0.0836 0.3489 0.27019 2006 4 21 53846 0.0837 0.3486 0.26976 2006 4 22 53847 0.0838 0.3484 0.26908 2006 4 23 53848 0.0839 0.3481 0.26810 2006 4 24 53849 0.0840 0.3479 0.26683 2006 4 25 53850 0.0841 0.3476 0.26535 2006 4 26 53851 0.0842 0.3473 0.26384 2006 4 27 53852 0.0843 0.3471 0.26246 2006 4 28 53853 0.0845 0.3468 0.26136 2006 4 29 53854 0.0846 0.3465 0.26059 2006 4 30 53855 0.0847 0.3462 0.26014 2006 5 1 53856 0.0849 0.3459 0.25991 2006 5 2 53857 0.0850 0.3456 0.25979 2006 5 3 53858 0.0852 0.3453 0.25967 2006 5 4 53859 0.0853 0.3450 0.25947 2006 5 5 53860 0.0855 0.3447 0.25914 2006 5 6 53861 0.0856 0.3444 0.25866 2006 5 7 53862 0.0858 0.3441 0.25803 2006 5 8 53863 0.0859 0.3437 0.25727 2006 5 9 53864 0.0861 0.3434 0.25644 2006 5 10 53865 0.0863 0.3431 0.25561 2006 5 11 53866 0.0865 0.3427 0.25484 2006 5 12 53867 0.0866 0.3424 0.25420 2006 5 13 53868 0.0868 0.3420 0.25375 2006 5 14 53869 0.0870 0.3416 0.25351 2006 5 15 53870 0.0872 0.3413 0.25346 2006 5 16 53871 0.0874 0.3409 0.25353 2006 5 17 53872 0.0876 0.3405 0.25363 2006 5 18 53873 0.0878 0.3401 0.25364 2006 5 19 53874 0.0880 0.3397 0.25345 2006 5 20 53875 0.0882 0.3393 0.25300 2006 5 21 53876 0.0884 0.3389 0.25229 2006 5 22 53877 0.0886 0.3384 0.25138 2006 5 23 53878 0.0888 0.3380 0.25040 2006 5 24 53879 0.0891 0.3376 0.24951 2006 5 25 53880 0.0893 0.3371 0.24884 2006 5 26 53881 0.0895 0.3366 0.24847 2006 5 27 53882 0.0897 0.3362 0.24842 2006 5 28 53883 0.0899 0.3357 0.24863 2006 5 29 53884 0.0901 0.3352 0.24899 2006 5 30 53885 0.0904 0.3347 0.24940 2006 5 31 53886 0.0906 0.3342 0.24976 2006 6 1 53887 0.0908 0.3337 0.25001 2006 6 2 53888 0.0910 0.3332 0.25010 2006 6 3 53889 0.0913 0.3327 0.25005 2006 6 4 53890 0.0915 0.3321 0.24987 2006 6 5 53891 0.0917 0.3316 0.24962 2006 6 6 53892 0.0919 0.3310 0.24933 2006 6 7 53893 0.0921 0.3305 0.24910 2006 6 8 53894 0.0923 0.3299 0.24897 2006 6 9 53895 0.0926 0.3293 0.24900 2006 6 10 53896 0.0928 0.3287 0.24924 2006 6 11 53897 0.0930 0.3281 0.24967 2006 6 12 53898 0.0932 0.3275 0.25024 2006 6 13 53899 0.0934 0.3269 0.25086 2006 6 14 53900 0.0936 0.3263 0.25140 2006 6 15 53901 0.0938 0.3256 0.25174 2006 6 16 53902 0.0939 0.3250 0.25181 2006 6 17 53903 0.0941 0.3243 0.25160 2006 6 18 53904 0.0943 0.3237 0.25118 2006 6 19 53905 0.0944 0.3230 0.25067 2006 6 20 53906 0.0946 0.3223 0.25022 2006 6 21 53907 0.0948 0.3216 0.24996 2006 6 22 53908 0.0949 0.3209 0.24999 2006 6 23 53909 0.0950 0.3202 0.25034 2006 6 24 53910 0.0951 0.3195 0.25098 2006 6 25 53911 0.0952 0.3188 0.25182 2006 6 26 53912 0.0953 0.3181 0.25274 2006 6 27 53913 0.0953 0.3174 0.25363 2006 6 28 53914 0.0954 0.3167 0.25441 2006 6 29 53915 0.0954 0.3160 0.25503 2006 6 30 53916 0.0954 0.3153 0.25547 2006 7 1 53917 0.0954 0.3145 0.25575 2006 7 2 53918 0.0954 0.3138 0.25592 2006 7 3 53919 0.0954 0.3131 0.25606 2006 7 4 53920 0.0954 0.3123 0.25622 2006 7 5 53921 0.0954 0.3115 0.25648 2006 7 6 53922 0.0953 0.3108 0.25689 2006 7 7 53923 0.0952 0.3100 0.25748 2006 7 8 53924 0.0952 0.3092 0.25827 2006 7 9 53925 0.0951 0.3085 0.25923 2006 7 10 53926 0.0949 0.3077 0.26027 2006 7 11 53927 0.0948 0.3069 0.26129 2006 7 12 53928 0.0947 0.3061 0.26216 2006 7 13 53929 0.0945 0.3053 0.26277 2006 7 14 53930 0.0943 0.3045 0.26311 2006 7 15 53931 0.0941 0.3037 0.26321 2006 7 16 53932 0.0939 0.3029 0.26319 2006 7 17 53933 0.0937 0.3021 0.26319 2006 7 18 53934 0.0934 0.3013 0.26330 2006 7 19 53935 0.0932 0.3005 0.26361 2006 7 20 53936 0.0929 0.2996 0.26414 2006 7 21 53937 0.0926 0.2988 0.26488 2006 7 22 53938 0.0922 0.2980 0.26579 2006 7 23 53939 0.0919 0.2972 0.26674 2006 7 24 53940 0.0915 0.2964 0.26765 2006 7 25 53941 0.0911 0.2956 0.26844 2006 7 26 53942 0.0907 0.2948 0.26901 2006 7 27 53943 0.0903 0.2940 0.26939 2006 7 28 53944 0.0898 0.2932 0.26962 2006 7 29 53945 0.0893 0.2924 0.26974 2006 7 30 53946 0.0888 0.2915 0.26974 2006 7 31 53947 0.0883 0.2907 0.26976 2006 8 1 53948 0.0877 0.2900 0.26983 2006 8 2 53949 0.0872 0.2892 0.27002 2006 8 3 53950 0.0866 0.2884 0.27038 2006 8 4 53951 0.0859 0.2876 0.27093 2006 8 5 53952 0.0853 0.2868 0.27170 2006 8 6 53953 0.0846 0.2860 0.27257 2006 8 7 53954 0.0839 0.2853 0.27342 2006 8 8 53955 0.0832 0.2845 0.27412 2006 8 9 53956 0.0825 0.2838 0.27455 2006 8 10 53957 0.0817 0.2830 0.27464 2006 8 11 53958 0.0809 0.2823 0.27440 2006 8 12 53959 0.0801 0.2816 0.27391 2006 8 13 53960 0.0793 0.2808 0.27342 2006 8 14 53961 0.0784 0.2801 0.27301 2006 8 15 53962 0.0775 0.2794 0.27281 2006 8 16 53963 0.0766 0.2788 0.27290 2006 8 17 53964 0.0757 0.2781 0.27331 2006 8 18 53965 0.0747 0.2774 0.27395 2006 8 19 53966 0.0737 0.2768 0.27475 2006 8 20 53967 0.0727 0.2761 0.27552 2006 8 21 53968 0.0717 0.2755 0.27622 2006 8 22 53969 0.0706 0.2749 0.27674 2006 8 23 53970 0.0696 0.2743 0.27708 2006 8 24 53971 0.0685 0.2737 0.27725 2006 8 25 53972 0.0673 0.2731 0.27729 2006 8 26 53973 0.0662 0.2726 0.27730 2006 8 27 53974 0.0650 0.2720 0.27734 2006 8 28 53975 0.0638 0.2715 0.27751 2006 8 29 53976 0.0626 0.2710 0.27789 2006 8 30 53977 0.0613 0.2705 0.27842 2006 8 31 53978 0.0601 0.2700 0.27913 2006 9 1 53979 0.0588 0.2696 0.27992 2006 9 2 53980 0.0575 0.2691 0.28079 2006 9 3 53981 0.0561 0.2687 0.28175 2006 9 4 53982 0.0548 0.2683 0.28265 2006 9 5 53983 0.0534 0.2679 0.28332 2006 9 6 53984 0.0520 0.2675 0.28359 2006 9 7 53985 0.0506 0.2672 0.28352 2006 9 8 53986 0.0492 0.2669 0.28317 2006 9 9 53987 0.0477 0.2666 0.28273 2006 9 10 53988 0.0463 0.2663 0.28230 2006 9 11 53989 0.0448 0.2660 0.28205 2006 9 12 53990 0.0433 0.2658 0.28206 2006 9 13 53991 0.0418 0.2656 0.28237 2006 9 14 53992 0.0402 0.2654 0.28290 2006 9 15 53993 0.0387 0.2652 0.28355 2006 9 16 53994 0.0371 0.2651 0.28418 2006 9 17 53995 0.0355 0.2649 0.28474 2006 9 18 53996 0.0339 0.2648 0.28518 2006 9 19 53997 0.0323 0.2648 0.28551 2006 9 20 53998 0.0307 0.2647 0.28569 2006 9 21 53999 0.0290 0.2647 0.28569 2006 9 22 54000 0.0274 0.2647 0.28555 2006 9 23 54001 0.0257 0.2647 0.28536 2006 9 24 54002 0.0241 0.2648 0.28521 2006 9 25 54003 0.0224 0.2648 0.28513 2006 9 26 54004 0.0207 0.2649 0.28513 2006 9 27 54005 0.0190 0.2651 0.28517 2006 9 28 54006 0.0173 0.2652 0.28529 2006 9 29 54007 0.0156 0.2654 0.28549 2006 9 30 54008 0.0138 0.2656 0.28573 2006 10 1 54009 0.0121 0.2658 0.28596 2006 10 2 54010 0.0104 0.2661 0.28596 2006 10 3 54011 0.0086 0.2664 0.28553 2006 10 4 54012 0.0069 0.2667 0.28459 2006 10 5 54013 0.0051 0.2670 0.28320 2006 10 6 54014 0.0034 0.2674 0.28145 2006 10 7 54015 0.0017 0.2678 0.27957 2006 10 8 54016 -0.0001 0.2682 0.27786 2006 10 9 54017 -0.0018 0.2686 0.27645 2006 10 10 54018 -0.0036 0.2691 0.27538 2006 10 11 54019 -0.0053 0.2696 0.27466 2006 10 12 54020 -0.0071 0.2702 0.27413 2006 10 13 54021 -0.0088 0.2707 0.27365 2006 10 14 54022 -0.0106 0.2713 0.27315 2006 10 15 54023 -0.0123 0.2719 0.27256 2006 10 16 54024 -0.0140 0.2726 0.27181 2006 10 17 54025 -0.0158 0.2732 0.27087 2006 10 18 54026 -0.0175 0.2739 0.26977 2006 10 19 54027 -0.0192 0.2747 0.26858 2006 10 20 54028 -0.0209 0.2754 0.26739 2006 10 21 54029 -0.0226 0.2762 0.26630 2006 10 22 54030 -0.0243 0.2770 0.26540 2006 10 23 54031 -0.0260 0.2778 0.26463 2006 10 24 54032 -0.0276 0.2787 0.26400 2006 10 25 54033 -0.0293 0.2796 0.26348 2006 10 26 54034 -0.0309 0.2805 0.26308 2006 10 27 54035 -0.0325 0.2814 0.26276 2006 10 28 54036 -0.0341 0.2824 0.26246 2006 10 29 54037 -0.0357 0.2834 0.26213 2006 10 30 54038 -0.0373 0.2844 0.26163 2006 10 31 54039 -0.0389 0.2855 0.26089 2006 11 1 54040 -0.0404 0.2865 0.25982 2006 11 2 54041 -0.0420 0.2876 0.25845 2006 11 3 54042 -0.0435 0.2887 0.25704 2006 11 4 54043 -0.0450 0.2899 0.25581 2006 11 5 54044 -0.0464 0.2911 0.25482 2006 11 6 54045 -0.0479 0.2923 0.25417 2006 11 7 54046 -0.0493 0.2935 0.25386 2006 11 8 54047 -0.0507 0.2947 0.25387 2006 11 9 54048 -0.0521 0.2960 0.25402 2006 11 10 54049 -0.0535 0.2973 0.25413 2006 11 11 54050 -0.0548 0.2986 0.25408 2006 11 12 54051 -0.0562 0.2999 0.25385 2006 11 13 54052 -0.0575 0.3013 0.25345 2006 11 14 54053 -0.0587 0.3027 0.25286 2006 11 15 54054 -0.0600 0.3041 0.25208 2006 11 16 54055 -0.0612 0.3055 0.25116 2006 11 17 54056 -0.0624 0.3069 0.25019 2006 11 18 54057 -0.0635 0.3084 0.24926 2006 11 19 54058 -0.0647 0.3099 0.24843 2006 11 20 54059 -0.0658 0.3114 0.24781 2006 11 21 54060 -0.0669 0.3129 0.24736 2006 11 22 54061 -0.0679 0.3144 0.24706 2006 11 23 54062 -0.0689 0.3160 0.24691 2006 11 24 54063 -0.0699 0.3176 0.24682 2006 11 25 54064 -0.0709 0.3192 0.24667 2006 11 26 54065 -0.0718 0.3208 0.24630 2006 11 27 54066 -0.0727 0.3224 0.24569 2006 11 28 54067 -0.0736 0.3240 0.24481 2006 11 29 54068 -0.0744 0.3257 0.24374 2006 11 30 54069 -0.0752 0.3274 0.24254 2006 12 1 54070 -0.0760 0.3291 0.24139 2006 12 2 54071 -0.0767 0.3308 0.24047 2006 12 3 54072 -0.0774 0.3325 0.23984 2006 12 4 54073 -0.0781 0.3342 0.23950 2006 12 5 54074 -0.0787 0.3360 0.23943 2006 12 6 54075 -0.0793 0.3377 0.23956 2006 12 7 54076 -0.0799 0.3395 0.23977 2006 12 8 54077 -0.0804 0.3413 0.23990 2006 12 9 54078 -0.0809 0.3431 0.23991 2006 12 10 54079 -0.0813 0.3449 0.23979 2006 12 11 54080 -0.0818 0.3467 0.23952 2006 12 12 54081 -0.0822 0.3485 0.23906 2006 12 13 54082 -0.0825 0.3504 0.23851 2006 12 14 54083 -0.0828 0.3522 0.23797 2006 12 15 54084 -0.0831 0.3541 0.23749 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) 53704 -58.55 .47 -1.91 .34 53705 -58.47 .47 -2.12 .34 53706 -58.30 .47 -2.29 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53704 0.208 0.187 -0.185 0.340 53705 0.225 0.187 -0.210 0.340 53706 0.247 0.187 -0.202 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 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 **************************************************************************