********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 13 October 2005 Vol. XVIII No. 041 ______________________________________________________________________ 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 7 53650 .06341 .00004 .41534 .00006 -.611738 .000020 5 10 8 53651 .06411 .00003 .41537 .00006 -.611959 .000020 5 10 9 53652 .06455 .00003 .41489 .00005 -.612036 .000018 5 10 10 53653 .06503 .00003 .41417 .00003 -.612042 .000022 5 10 11 53654 .06525 .00002 .41339 .00003 -.612074 .000021 5 10 12 53655 .06541 .00002 .41259 .00003 -.612246 .000022 5 10 13 53656 .06564 .00002 .41201 .00002 -.612753 .000021 _______________________________________________________________________ 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 = .0459 + .0837 cos A - .0596 sin A - .0600 cos C + .1270 sin C y = .3480 - .0579 cos A - .0842 sin A + .1270 cos C + .0600 sin C UT1-UTC = -.6412 - .00043 (MJD - 53661) - (UT2-UT1) where A = 2*pi*(MJD-53656)/365.25 and C = 2*pi*(MJD-53656)/435. TAI-UTC(MJD 53657) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53656)**0.80 S t = 0.00025 (MJD-53656)**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 14 53657 0.0659 0.4116 -0.61368 2005 10 15 53658 0.0663 0.4112 -0.61487 2005 10 16 53659 0.0667 0.4107 -0.61620 2005 10 17 53660 0.0672 0.4103 -0.61749 2005 10 18 53661 0.0677 0.4099 -0.61862 2005 10 19 53662 0.0683 0.4094 -0.61946 2005 10 20 53663 0.0688 0.4090 -0.62002 2005 10 21 53664 0.0694 0.4086 -0.62032 2005 10 22 53665 0.0700 0.4081 -0.62041 2005 10 23 53666 0.0707 0.4077 -0.62042 2005 10 24 53667 0.0713 0.4072 -0.62045 2005 10 25 53668 0.0719 0.4067 -0.62056 2005 10 26 53669 0.0726 0.4063 -0.62082 2005 10 27 53670 0.0732 0.4058 -0.62126 2005 10 28 53671 0.0738 0.4053 -0.62189 2005 10 29 53672 0.0745 0.4048 -0.62268 2005 10 30 53673 0.0751 0.4043 -0.62361 2005 10 31 53674 0.0757 0.4038 -0.62460 2005 11 1 53675 0.0764 0.4033 -0.62560 2005 11 2 53676 0.0770 0.4028 -0.62651 2005 11 3 53677 0.0776 0.4023 -0.62725 2005 11 4 53678 0.0782 0.4018 -0.62780 2005 11 5 53679 0.0788 0.4013 -0.62816 2005 11 6 53680 0.0794 0.4008 -0.62843 2005 11 7 53681 0.0800 0.4003 -0.62873 2005 11 8 53682 0.0805 0.3997 -0.62917 2005 11 9 53683 0.0811 0.3992 -0.62985 2005 11 10 53684 0.0817 0.3986 -0.63079 2005 11 11 53685 0.0822 0.3981 -0.63197 2005 11 12 53686 0.0828 0.3976 -0.63328 2005 11 13 53687 0.0833 0.3970 -0.63459 2005 11 14 53688 0.0839 0.3964 -0.63579 2005 11 15 53689 0.0844 0.3959 -0.63676 2005 11 16 53690 0.0849 0.3953 -0.63745 2005 11 17 53691 0.0854 0.3947 -0.63788 2005 11 18 53692 0.0859 0.3942 -0.63811 2005 11 19 53693 0.0864 0.3936 -0.63823 2005 11 20 53694 0.0869 0.3930 -0.63835 2005 11 21 53695 0.0874 0.3924 -0.63855 2005 11 22 53696 0.0879 0.3918 -0.63890 2005 11 23 53697 0.0884 0.3912 -0.63942 2005 11 24 53698 0.0889 0.3906 -0.64013 2005 11 25 53699 0.0893 0.3900 -0.64101 2005 11 26 53700 0.0898 0.3894 -0.64202 2005 11 27 53701 0.0902 0.3888 -0.64310 2005 11 28 53702 0.0907 0.3881 -0.64418 2005 11 29 53703 0.0911 0.3875 -0.64517 2005 11 30 53704 0.0915 0.3869 -0.64601 2005 12 1 53705 0.0920 0.3862 -0.64663 2005 12 2 53706 0.0924 0.3856 -0.64704 2005 12 3 53707 0.0928 0.3850 -0.64730 2005 12 4 53708 0.0932 0.3843 -0.64752 2005 12 5 53709 0.0936 0.3837 -0.64786 2005 12 6 53710 0.0940 0.3830 -0.64840 2005 12 7 53711 0.0943 0.3823 -0.64922 2005 12 8 53712 0.0948 0.3817 -0.65028 2005 12 9 53713 0.0951 0.3810 -0.65149 2005 12 10 53714 0.0955 0.3803 -0.65273 2005 12 11 53715 0.0958 0.3796 -0.65385 2005 12 12 53716 0.0962 0.3790 -0.65476 2005 12 13 53717 0.0965 0.3783 -0.65541 2005 12 14 53718 0.0968 0.3776 -0.65579 2005 12 15 53719 0.0971 0.3769 -0.65595 2005 12 16 53720 0.0974 0.3762 -0.65598 2005 12 17 53721 0.0977 0.3755 -0.65596 2005 12 18 53722 0.0980 0.3748 -0.65598 2005 12 19 53723 0.0983 0.3741 -0.65611 2005 12 20 53724 0.0986 0.3734 -0.65639 2005 12 21 53725 0.0989 0.3727 -0.65684 2005 12 22 53726 0.0991 0.3720 -0.65744 2005 12 23 53727 0.0994 0.3713 -0.65817 2005 12 24 53728 0.0996 0.3705 -0.65898 2005 12 25 53729 0.0998 0.3698 -0.65979 2005 12 26 53730 0.1001 0.3691 -0.66054 2005 12 27 53731 0.1003 0.3684 -0.66116 2005 12 28 53732 0.1005 0.3677 -0.66159 2005 12 29 53733 0.1007 0.3669 -0.66182 2005 12 30 53734 0.1008 0.3662 -0.66188 2005 12 31 53735 0.1010 0.3655 -0.66187 2006 1 1 53736 0.1012 0.3648 0.33806 2006 1 2 53737 0.1013 0.3640 0.33778 2006 1 3 53738 0.1015 0.3633 0.33720 2006 1 4 53739 0.1016 0.3626 0.33633 2006 1 5 53740 0.1017 0.3618 0.33526 2006 1 6 53741 0.1018 0.3611 0.33413 2006 1 7 53742 0.1019 0.3604 0.33308 2006 1 8 53743 0.1020 0.3597 0.33224 2006 1 9 53744 0.1021 0.3589 0.33167 2006 1 10 53745 0.1021 0.3582 0.33135 2006 1 11 53746 0.1022 0.3575 0.33126 2006 1 12 53747 0.1022 0.3568 0.33131 2006 1 13 53748 0.1023 0.3560 0.33142 2006 1 14 53749 0.1023 0.3553 0.33149 2006 1 15 53750 0.1023 0.3546 0.33146 2006 1 16 53751 0.1023 0.3539 0.33128 2006 1 17 53752 0.1023 0.3532 0.33092 2006 1 18 53753 0.1022 0.3525 0.33039 2006 1 19 53754 0.1022 0.3517 0.32972 2006 1 20 53755 0.1022 0.3510 0.32897 2006 1 21 53756 0.1021 0.3503 0.32820 2006 1 22 53757 0.1020 0.3496 0.32747 2006 1 23 53758 0.1020 0.3490 0.32685 2006 1 24 53759 0.1019 0.3483 0.32639 2006 1 25 53760 0.1018 0.3476 0.32611 2006 1 26 53761 0.1017 0.3469 0.32602 2006 1 27 53762 0.1015 0.3462 0.32602 2006 1 28 53763 0.1014 0.3456 0.32599 2006 1 29 53764 0.1012 0.3449 0.32578 2006 1 30 53765 0.1011 0.3442 0.32527 2006 1 31 53766 0.1009 0.3436 0.32442 2006 2 1 53767 0.1007 0.3429 0.32329 2006 2 2 53768 0.1006 0.3423 0.32203 2006 2 3 53769 0.1004 0.3417 0.32081 2006 2 4 53770 0.1001 0.3410 0.31979 2006 2 5 53771 0.0999 0.3404 0.31905 2006 2 6 53772 0.0997 0.3398 0.31860 2006 2 7 53773 0.0995 0.3392 0.31840 2006 2 8 53774 0.0992 0.3386 0.31836 2006 2 9 53775 0.0990 0.3380 0.31839 2006 2 10 53776 0.0987 0.3374 0.31841 2006 2 11 53777 0.0984 0.3369 0.31833 2006 2 12 53778 0.0981 0.3363 0.31810 2006 2 13 53779 0.0978 0.3357 0.31769 2006 2 14 53780 0.0975 0.3352 0.31710 2006 2 15 53781 0.0972 0.3346 0.31635 2006 2 16 53782 0.0969 0.3341 0.31549 2006 2 17 53783 0.0966 0.3336 0.31459 2006 2 18 53784 0.0962 0.3331 0.31371 2006 2 19 53785 0.0959 0.3326 0.31292 2006 2 20 53786 0.0956 0.3321 0.31226 2006 2 21 53787 0.0952 0.3316 0.31178 2006 2 22 53788 0.0948 0.3311 0.31145 2006 2 23 53789 0.0945 0.3307 0.31124 2006 2 24 53790 0.0941 0.3302 0.31105 2006 2 25 53791 0.0937 0.3297 0.31072 2006 2 26 53792 0.0933 0.3293 0.31012 2006 2 27 53793 0.0930 0.3289 0.30917 2006 2 28 53794 0.0926 0.3285 0.30787 2006 3 1 53795 0.0922 0.3281 0.30634 2006 3 2 53796 0.0918 0.3277 0.30474 2006 3 3 53797 0.0913 0.3273 0.30328 2006 3 4 53798 0.0909 0.3269 0.30209 2006 3 5 53799 0.0905 0.3265 0.30122 2006 3 6 53800 0.0901 0.3262 0.30065 2006 3 7 53801 0.0897 0.3258 0.30028 2006 3 8 53802 0.0893 0.3255 0.30001 2006 3 9 53803 0.0888 0.3252 0.29975 2006 3 10 53804 0.0884 0.3249 0.29942 2006 3 11 53805 0.0880 0.3246 0.29894 2006 3 12 53806 0.0876 0.3243 0.29830 2006 3 13 53807 0.0871 0.3240 0.29747 2006 3 14 53808 0.0867 0.3237 0.29647 2006 3 15 53809 0.0863 0.3235 0.29535 2006 3 16 53810 0.0858 0.3232 0.29416 2006 3 17 53811 0.0854 0.3230 0.29299 2006 3 18 53812 0.0850 0.3228 0.29190 2006 3 19 53813 0.0846 0.3225 0.29096 2006 3 20 53814 0.0841 0.3223 0.29018 2006 3 21 53815 0.0837 0.3221 0.28959 2006 3 22 53816 0.0833 0.3219 0.28913 2006 3 23 53817 0.0829 0.3217 0.28873 2006 3 24 53818 0.0824 0.3216 0.28827 2006 3 25 53819 0.0820 0.3214 0.28761 2006 3 26 53820 0.0816 0.3213 0.28665 2006 3 27 53821 0.0812 0.3211 0.28533 2006 3 28 53822 0.0808 0.3210 0.28373 2006 3 29 53823 0.0804 0.3208 0.28197 2006 3 30 53824 0.0800 0.3207 0.28025 2006 3 31 53825 0.0796 0.3206 0.27875 2006 4 1 53826 0.0792 0.3205 0.27757 2006 4 2 53827 0.0788 0.3204 0.27672 2006 4 3 53828 0.0785 0.3203 0.27615 2006 4 4 53829 0.0781 0.3202 0.27575 2006 4 5 53830 0.0777 0.3202 0.27540 2006 4 6 53831 0.0774 0.3201 0.27501 2006 4 7 53832 0.0770 0.3200 0.27451 2006 4 8 53833 0.0767 0.3200 0.27386 2006 4 9 53834 0.0763 0.3199 0.27305 2006 4 10 53835 0.0760 0.3199 0.27207 2006 4 11 53836 0.0757 0.3198 0.27098 2006 4 12 53837 0.0753 0.3198 0.26982 2006 4 13 53838 0.0750 0.3198 0.26867 2006 4 14 53839 0.0747 0.3197 0.26760 2006 4 15 53840 0.0744 0.3197 0.26667 2006 4 16 53841 0.0741 0.3197 0.26592 2006 4 17 53842 0.0739 0.3197 0.26536 2006 4 18 53843 0.0736 0.3197 0.26496 2006 4 19 53844 0.0733 0.3197 0.26463 2006 4 20 53845 0.0731 0.3197 0.26426 2006 4 21 53846 0.0728 0.3197 0.26374 2006 4 22 53847 0.0726 0.3197 0.26295 2006 4 23 53848 0.0723 0.3197 0.26183 2006 4 24 53849 0.0720 0.3197 0.26042 2006 4 25 53850 0.0718 0.3197 0.25882 2006 4 26 53851 0.0716 0.3197 0.25720 2006 4 27 53852 0.0713 0.3197 0.25576 2006 4 28 53853 0.0711 0.3197 0.25464 2006 4 29 53854 0.0709 0.3197 0.25393 2006 4 30 53855 0.0707 0.3197 0.25359 2006 5 1 53856 0.0705 0.3197 0.25354 2006 5 2 53857 0.0703 0.3197 0.25367 2006 5 3 53858 0.0702 0.3197 0.25386 2006 5 4 53859 0.0700 0.3197 0.25402 2006 5 5 53860 0.0698 0.3197 0.25407 2006 5 6 53861 0.0697 0.3197 0.25398 2006 5 7 53862 0.0695 0.3197 0.25375 2006 5 8 53863 0.0694 0.3197 0.25339 2006 5 9 53864 0.0693 0.3197 0.25295 2006 5 10 53865 0.0692 0.3196 0.25248 2006 5 11 53866 0.0691 0.3196 0.25205 2006 5 12 53867 0.0689 0.3196 0.25172 2006 5 13 53868 0.0689 0.3196 0.25158 2006 5 14 53869 0.0688 0.3196 0.25164 2006 5 15 53870 0.0687 0.3195 0.25192 2006 5 16 53871 0.0686 0.3195 0.25238 2006 5 17 53872 0.0685 0.3194 0.25290 2006 5 18 53873 0.0685 0.3194 0.25333 2006 5 19 53874 0.0684 0.3193 0.25355 2006 5 20 53875 0.0684 0.3193 0.25350 2006 5 21 53876 0.0683 0.3192 0.25320 2006 5 22 53877 0.0683 0.3192 0.25269 2006 5 23 53878 0.0683 0.3191 0.25205 2006 5 24 53879 0.0682 0.3190 0.25141 2006 5 25 53880 0.0682 0.3189 0.25089 2006 5 26 53881 0.0682 0.3188 0.25064 2006 5 27 53882 0.0682 0.3187 0.25070 2006 5 28 53883 0.0681 0.3186 0.25105 2006 5 29 53884 0.0681 0.3185 0.25150 2006 5 30 53885 0.0681 0.3184 0.25184 2006 5 31 53886 0.0681 0.3182 0.25198 2006 6 1 53887 0.0681 0.3181 0.25189 2006 6 2 53888 0.0681 0.3180 0.25152 2006 6 3 53889 0.0681 0.3178 0.25094 2006 6 4 53890 0.0681 0.3176 0.25027 2006 6 5 53891 0.0681 0.3175 0.24952 2006 6 6 53892 0.0681 0.3173 0.24876 2006 6 7 53893 0.0681 0.3171 0.24808 2006 6 8 53894 0.0682 0.3169 0.24753 2006 6 9 53895 0.0682 0.3167 0.24709 2006 6 10 53896 0.0682 0.3165 0.24692 2006 6 11 53897 0.0682 0.3163 0.24697 2006 6 12 53898 0.0682 0.3161 0.24719 2006 6 13 53899 0.0682 0.3158 0.24746 2006 6 14 53900 0.0682 0.3156 0.24766 2006 6 15 53901 0.0681 0.3153 0.24770 2006 6 16 53902 0.0681 0.3151 0.24751 2006 6 17 53903 0.0681 0.3148 0.24716 2006 6 18 53904 0.0681 0.3146 0.24672 2006 6 19 53905 0.0681 0.3143 0.24619 2006 6 20 53906 0.0681 0.3140 0.24570 2006 6 21 53907 0.0680 0.3137 0.24535 2006 6 22 53908 0.0680 0.3134 0.24524 2006 6 23 53909 0.0679 0.3131 0.24542 2006 6 24 53910 0.0679 0.3128 0.24589 2006 6 25 53911 0.0678 0.3124 0.24662 2006 6 26 53912 0.0678 0.3121 0.24746 2006 6 27 53913 0.0677 0.3118 0.24832 2006 6 28 53914 0.0676 0.3114 0.24907 2006 6 29 53915 0.0675 0.3111 0.24962 2006 6 30 53916 0.0674 0.3107 0.25008 2006 7 1 53917 0.0673 0.3103 0.25054 2006 7 2 53918 0.0672 0.3100 0.25092 2006 7 3 53919 0.0671 0.3096 0.25128 2006 7 4 53920 0.0670 0.3092 0.25168 2006 7 5 53921 0.0668 0.3088 0.25222 2006 7 6 53922 0.0667 0.3084 0.25290 2006 7 7 53923 0.0665 0.3081 0.25373 2006 7 8 53924 0.0663 0.3077 0.25468 2006 7 9 53925 0.0661 0.3073 0.25576 2006 7 10 53926 0.0659 0.3068 0.25691 2006 7 11 53927 0.0657 0.3064 0.25798 2006 7 12 53928 0.0655 0.3060 0.25880 2006 7 13 53929 0.0652 0.3056 0.25926 2006 7 14 53930 0.0650 0.3052 0.25935 2006 7 15 53931 0.0647 0.3048 0.25915 2006 7 16 53932 0.0644 0.3044 0.25881 2006 7 17 53933 0.0642 0.3039 0.25854 2006 7 18 53934 0.0639 0.3035 0.25842 2006 7 19 53935 0.0635 0.3031 0.25858 2006 7 20 53936 0.0632 0.3027 0.25906 2006 7 21 53937 0.0628 0.3022 0.25981 2006 7 22 53938 0.0625 0.3018 0.26076 2006 7 23 53939 0.0621 0.3014 0.26176 2006 7 24 53940 0.0617 0.3010 0.26273 2006 7 25 53941 0.0613 0.3005 0.26361 2006 7 26 53942 0.0609 0.3001 0.26439 2006 7 27 53943 0.0605 0.2997 0.26498 2006 7 28 53944 0.0600 0.2993 0.26547 2006 7 29 53945 0.0595 0.2989 0.26589 2006 7 30 53946 0.0590 0.2985 0.26628 2006 7 31 53947 0.0585 0.2981 0.26663 2006 8 1 53948 0.0580 0.2977 0.26703 2006 8 2 53949 0.0575 0.2973 0.26758 2006 8 3 53950 0.0570 0.2969 0.26829 2006 8 4 53951 0.0564 0.2965 0.26915 2006 8 5 53952 0.0558 0.2961 0.27019 2006 8 6 53953 0.0552 0.2958 0.27135 2006 8 7 53954 0.0546 0.2954 0.27251 2006 8 8 53955 0.0540 0.2950 0.27345 2006 8 9 53956 0.0534 0.2947 0.27410 2006 8 10 53957 0.0527 0.2943 0.27441 2006 8 11 53958 0.0520 0.2940 0.27439 2006 8 12 53959 0.0514 0.2937 0.27414 2006 8 13 53960 0.0507 0.2934 0.27379 2006 8 14 53961 0.0499 0.2931 0.27357 2006 8 15 53962 0.0492 0.2928 0.27368 2006 8 16 53963 0.0485 0.2925 0.27401 2006 8 17 53964 0.0477 0.2922 0.27462 2006 8 18 53965 0.0469 0.2919 0.27545 2006 8 19 53966 0.0462 0.2917 0.27636 2006 8 20 53967 0.0454 0.2915 0.27726 2006 8 21 53968 0.0445 0.2912 0.27802 2006 8 22 53969 0.0437 0.2910 0.27863 2006 8 23 53970 0.0429 0.2908 0.27909 2006 8 24 53971 0.0420 0.2906 0.27937 2006 8 25 53972 0.0412 0.2904 0.27948 2006 8 26 53973 0.0403 0.2903 0.27948 2006 8 27 53974 0.0394 0.2901 0.27951 2006 8 28 53975 0.0385 0.2900 0.27953 2006 8 29 53976 0.0376 0.2899 0.27967 2006 8 30 53977 0.0367 0.2898 0.27998 2006 8 31 53978 0.0357 0.2897 0.28046 2006 9 1 53979 0.0348 0.2896 0.28111 2006 9 2 53980 0.0339 0.2896 0.28188 2006 9 3 53981 0.0329 0.2895 0.28264 2006 9 4 53982 0.0319 0.2895 0.28331 2006 9 5 53983 0.0309 0.2895 0.28381 2006 9 6 53984 0.0300 0.2895 0.28392 2006 9 7 53985 0.0290 0.2896 0.28365 2006 9 8 53986 0.0280 0.2896 0.28309 2006 9 9 53987 0.0270 0.2897 0.28235 2006 9 10 53988 0.0259 0.2898 0.28162 2006 9 11 53989 0.0249 0.2899 0.28113 2006 9 12 53990 0.0239 0.2900 0.28094 2006 9 13 53991 0.0229 0.2901 0.28109 2006 9 14 53992 0.0218 0.2903 0.28150 2006 9 15 53993 0.0208 0.2905 0.28201 2006 9 16 53994 0.0198 0.2906 0.28254 2006 9 17 53995 0.0187 0.2909 0.28297 2006 9 18 53996 0.0177 0.2911 0.28325 2006 9 19 53997 0.0166 0.2913 0.28334 2006 9 20 53998 0.0156 0.2916 0.28321 2006 9 21 53999 0.0145 0.2919 0.28292 2006 9 22 54000 0.0134 0.2922 0.28246 2006 9 23 54001 0.0124 0.2926 0.28193 2006 9 24 54002 0.0113 0.2929 0.28147 2006 9 25 54003 0.0103 0.2933 0.28111 2006 9 26 54004 0.0092 0.2937 0.28089 2006 9 27 54005 0.0082 0.2941 0.28088 2006 9 28 54006 0.0071 0.2945 0.28107 2006 9 29 54007 0.0061 0.2949 0.28142 2006 9 30 54008 0.0050 0.2954 0.28188 2006 10 1 54009 0.0040 0.2959 0.28233 2006 10 2 54010 0.0030 0.2964 0.28260 2006 10 3 54011 0.0019 0.2969 0.28258 2006 10 4 54012 0.0009 0.2975 0.28222 2006 10 5 54013 -0.0001 0.2980 0.28154 2006 10 6 54014 -0.0011 0.2986 0.28064 2006 10 7 54015 -0.0021 0.2992 0.27964 2006 10 8 54016 -0.0031 0.2999 0.27877 2006 10 9 54017 -0.0041 0.3005 0.27822 2006 10 10 54018 -0.0051 0.3012 0.27808 2006 10 11 54019 -0.0061 0.3018 0.27831 2006 10 12 54020 -0.0070 0.3025 0.27875 2006 10 13 54021 -0.0080 0.3032 0.27925 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) 53634 -64.81 .20 -4.62 .34 53635 -65.23 .20 -4.51 .34 53636 -65.55 .20 -4.54 .34 53637 -65.49 .14 -4.70 .34 53638 -65.14 .14 -4.79 .34 53639 -64.71 .14 -4.69 .34 53640 -64.29 .74 -4.54 .34 53641 -63.90 .30 -4.47 .34 53642 -63.60 .30 -4.45 .34 53643 -63.45 .30 -4.31 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53634 0.185 0.080 -0.073 0.340 53635 0.188 0.080 -0.075 0.340 53636 0.196 0.080 -0.071 0.340 53637 0.216 0.056 -0.087 0.340 53638 0.244 0.056 -0.121 0.340 53639 0.269 0.056 -0.124 0.340 53640 0.285 0.294 -0.111 0.340 53641 0.291 0.119 -0.090 0.340 53642 0.293 0.119 -0.083 0.340 53643 0.292 0.119 -0.066 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 **************************************************************************