********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 September 2005 Vol. XVIII No. 039 ______________________________________________________________________ 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 9 23 53636 .05441 .00005 .41857 .00004 -.607731 .000025 5 9 24 53637 .05534 .00004 .41800 .00004 -.607817 .000025 5 9 25 53638 .05617 .00003 .41746 .00003 -.607694 .000025 5 9 26 53639 .05670 .00002 .41707 .00002 -.607486 .000025 5 9 27 53640 .05715 .00002 .41674 .00002 -.607324 .000022 5 9 28 53641 .05790 .00002 .41656 .00002 -.607249 .000017 5 9 29 53642 .05856 .00002 .41662 .00002 -.607388 .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 = .0462 + .0946 cos A - .0344 sin A - .0825 cos C + .1099 sin C y = .3475 - .0333 cos A - .0953 sin A + .1099 cos C + .0825 sin C UT1-UTC = -.6429 - .00042 (MJD - 53647) - (UT2-UT1) where A = 2*pi*(MJD-53642)/365.25 and C = 2*pi*(MJD-53642)/435. TAI-UTC(MJD 53643) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53642)**0.80 S t = 0.00025 (MJD-53642)**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 9 30 53643 0.0592 0.4167 -0.60781 2005 10 1 53644 0.0599 0.4167 -0.60845 2005 10 2 53645 0.0606 0.4166 -0.60925 2005 10 3 53646 0.0614 0.4164 -0.61015 2005 10 4 53647 0.0621 0.4162 -0.61106 2005 10 5 53648 0.0629 0.4159 -0.61191 2005 10 6 53649 0.0637 0.4156 -0.61263 2005 10 7 53650 0.0644 0.4153 -0.61315 2005 10 8 53651 0.0652 0.4149 -0.61343 2005 10 9 53652 0.0660 0.4145 -0.61356 2005 10 10 53653 0.0667 0.4141 -0.61366 2005 10 11 53654 0.0675 0.4136 -0.61388 2005 10 12 53655 0.0682 0.4132 -0.61432 2005 10 13 53656 0.0689 0.4127 -0.61507 2005 10 14 53657 0.0696 0.4122 -0.61615 2005 10 15 53658 0.0703 0.4117 -0.61749 2005 10 16 53659 0.0710 0.4112 -0.61898 2005 10 17 53660 0.0717 0.4107 -0.62046 2005 10 18 53661 0.0724 0.4101 -0.62177 2005 10 19 53662 0.0730 0.4096 -0.62278 2005 10 20 53663 0.0737 0.4091 -0.62348 2005 10 21 53664 0.0743 0.4085 -0.62388 2005 10 22 53665 0.0750 0.4080 -0.62408 2005 10 23 53666 0.0756 0.4074 -0.62419 2005 10 24 53667 0.0762 0.4069 -0.62431 2005 10 25 53668 0.0769 0.4063 -0.62454 2005 10 26 53669 0.0775 0.4058 -0.62492 2005 10 27 53670 0.0781 0.4052 -0.62550 2005 10 28 53671 0.0787 0.4047 -0.62628 2005 10 29 53672 0.0793 0.4041 -0.62723 2005 10 30 53673 0.0798 0.4035 -0.62832 2005 10 31 53674 0.0804 0.4030 -0.62947 2005 11 1 53675 0.0810 0.4024 -0.63062 2005 11 2 53676 0.0816 0.4018 -0.63166 2005 11 3 53677 0.0821 0.4012 -0.63253 2005 11 4 53678 0.0827 0.4007 -0.63318 2005 11 5 53679 0.0832 0.4001 -0.63367 2005 11 6 53680 0.0837 0.3995 -0.63406 2005 11 7 53681 0.0843 0.3989 -0.63448 2005 11 8 53682 0.0848 0.3983 -0.63505 2005 11 9 53683 0.0853 0.3977 -0.63587 2005 11 10 53684 0.0858 0.3971 -0.63696 2005 11 11 53685 0.0863 0.3965 -0.63829 2005 11 12 53686 0.0868 0.3959 -0.63978 2005 11 13 53687 0.0873 0.3953 -0.64128 2005 11 14 53688 0.0878 0.3947 -0.64265 2005 11 15 53689 0.0883 0.3941 -0.64379 2005 11 16 53690 0.0888 0.3935 -0.64464 2005 11 17 53691 0.0892 0.3928 -0.64522 2005 11 18 53692 0.0897 0.3922 -0.64558 2005 11 19 53693 0.0901 0.3916 -0.64581 2005 11 20 53694 0.0906 0.3910 -0.64601 2005 11 21 53695 0.0910 0.3903 -0.64627 2005 11 22 53696 0.0915 0.3897 -0.64665 2005 11 23 53697 0.0919 0.3890 -0.64719 2005 11 24 53698 0.0923 0.3884 -0.64790 2005 11 25 53699 0.0927 0.3877 -0.64877 2005 11 26 53700 0.0931 0.3871 -0.64977 2005 11 27 53701 0.0935 0.3864 -0.65082 2005 11 28 53702 0.0939 0.3858 -0.65187 2005 11 29 53703 0.0943 0.3850 -0.65282 2005 11 30 53704 0.0947 0.3844 -0.65361 2005 12 1 53705 0.0951 0.3837 -0.65418 2005 12 2 53706 0.0954 0.3830 -0.65454 2005 12 3 53707 0.0958 0.3824 -0.65475 2005 12 4 53708 0.0962 0.3817 -0.65494 2005 12 5 53709 0.0965 0.3810 -0.65524 2005 12 6 53710 0.0968 0.3803 -0.65575 2005 12 7 53711 0.0972 0.3796 -0.65652 2005 12 8 53712 0.0975 0.3789 -0.65754 2005 12 9 53713 0.0978 0.3782 -0.65871 2005 12 10 53714 0.0981 0.3775 -0.65991 2005 12 11 53715 0.0984 0.3768 -0.66100 2005 12 12 53716 0.0987 0.3761 -0.66189 2005 12 13 53717 0.0990 0.3754 -0.66252 2005 12 14 53718 0.0992 0.3747 -0.66289 2005 12 15 53719 0.0995 0.3739 -0.66305 2005 12 16 53720 0.0998 0.3732 -0.66307 2005 12 17 53721 0.1000 0.3725 -0.66305 2005 12 18 53722 0.1002 0.3718 -0.66308 2005 12 19 53723 0.1005 0.3710 -0.66321 2005 12 20 53724 0.1007 0.3703 -0.66350 2005 12 21 53725 0.1009 0.3696 -0.66395 2005 12 22 53726 0.1011 0.3689 -0.66457 2005 12 23 53727 0.1013 0.3681 -0.66532 2005 12 24 53728 0.1015 0.3674 -0.66614 2005 12 25 53729 0.1016 0.3666 -0.66697 2005 12 26 53730 0.1018 0.3659 -0.66775 2005 12 27 53731 0.1019 0.3652 -0.66840 2005 12 28 53732 0.1021 0.3644 -0.66886 2005 12 29 53733 0.1022 0.3637 -0.66912 2005 12 30 53734 0.1023 0.3629 -0.66922 2005 12 31 53735 0.1025 0.3622 -0.66924 2006 1 1 53736 0.1026 0.3615 0.33067 2006 1 2 53737 0.1026 0.3607 0.33038 2006 1 3 53738 0.1027 0.3600 0.32980 2006 1 4 53739 0.1028 0.3592 0.32895 2006 1 5 53740 0.1029 0.3585 0.32791 2006 1 6 53741 0.1029 0.3578 0.32682 2006 1 7 53742 0.1029 0.3570 0.32584 2006 1 8 53743 0.1030 0.3563 0.32506 2006 1 9 53744 0.1030 0.3556 0.32456 2006 1 10 53745 0.1030 0.3548 0.32432 2006 1 11 53746 0.1030 0.3541 0.32432 2006 1 12 53747 0.1030 0.3534 0.32447 2006 1 13 53748 0.1030 0.3526 0.32464 2006 1 14 53749 0.1029 0.3519 0.32479 2006 1 15 53750 0.1029 0.3512 0.32485 2006 1 16 53751 0.1028 0.3505 0.32474 2006 1 17 53752 0.1028 0.3498 0.32447 2006 1 18 53753 0.1027 0.3491 0.32402 2006 1 19 53754 0.1026 0.3484 0.32343 2006 1 20 53755 0.1025 0.3477 0.32275 2006 1 21 53756 0.1024 0.3470 0.32204 2006 1 22 53757 0.1023 0.3463 0.32137 2006 1 23 53758 0.1021 0.3456 0.32080 2006 1 24 53759 0.1020 0.3449 0.32038 2006 1 25 53760 0.1018 0.3442 0.32014 2006 1 26 53761 0.1017 0.3436 0.32006 2006 1 27 53762 0.1015 0.3429 0.32007 2006 1 28 53763 0.1013 0.3422 0.32004 2006 1 29 53764 0.1011 0.3416 0.31983 2006 1 30 53765 0.1009 0.3409 0.31932 2006 1 31 53766 0.1007 0.3403 0.31846 2006 2 1 53767 0.1005 0.3397 0.31732 2006 2 2 53768 0.1002 0.3390 0.31605 2006 2 3 53769 0.1000 0.3384 0.31482 2006 2 4 53770 0.0997 0.3378 0.31378 2006 2 5 53771 0.0995 0.3372 0.31302 2006 2 6 53772 0.0992 0.3366 0.31255 2006 2 7 53773 0.0989 0.3360 0.31233 2006 2 8 53774 0.0986 0.3354 0.31226 2006 2 9 53775 0.0983 0.3349 0.31227 2006 2 10 53776 0.0980 0.3343 0.31226 2006 2 11 53777 0.0977 0.3338 0.31215 2006 2 12 53778 0.0974 0.3332 0.31189 2006 2 13 53779 0.0971 0.3327 0.31144 2006 2 14 53780 0.0967 0.3321 0.31081 2006 2 15 53781 0.0964 0.3316 0.31002 2006 2 16 53782 0.0960 0.3311 0.30912 2006 2 17 53783 0.0957 0.3306 0.30818 2006 2 18 53784 0.0953 0.3301 0.30725 2006 2 19 53785 0.0949 0.3297 0.30642 2006 2 20 53786 0.0946 0.3292 0.30572 2006 2 21 53787 0.0942 0.3287 0.30519 2006 2 22 53788 0.0938 0.3283 0.30482 2006 2 23 53789 0.0934 0.3278 0.30457 2006 2 24 53790 0.0930 0.3274 0.30434 2006 2 25 53791 0.0926 0.3270 0.30398 2006 2 26 53792 0.0922 0.3266 0.30335 2006 2 27 53793 0.0917 0.3262 0.30237 2006 2 28 53794 0.0913 0.3258 0.30104 2006 3 1 53795 0.0909 0.3254 0.29949 2006 3 2 53796 0.0905 0.3251 0.29788 2006 3 3 53797 0.0900 0.3247 0.29641 2006 3 4 53798 0.0896 0.3244 0.29520 2006 3 5 53799 0.0892 0.3241 0.29433 2006 3 6 53800 0.0887 0.3237 0.29374 2006 3 7 53801 0.0883 0.3234 0.29337 2006 3 8 53802 0.0878 0.3231 0.29310 2006 3 9 53803 0.0874 0.3228 0.29285 2006 3 10 53804 0.0869 0.3226 0.29252 2006 3 11 53805 0.0865 0.3223 0.29205 2006 3 12 53806 0.0861 0.3220 0.29142 2006 3 13 53807 0.0856 0.3218 0.29060 2006 3 14 53808 0.0852 0.3216 0.28961 2006 3 15 53809 0.0847 0.3213 0.28851 2006 3 16 53810 0.0843 0.3211 0.28735 2006 3 17 53811 0.0838 0.3209 0.28620 2006 3 18 53812 0.0834 0.3207 0.28514 2006 3 19 53813 0.0829 0.3205 0.28423 2006 3 20 53814 0.0825 0.3204 0.28349 2006 3 21 53815 0.0820 0.3202 0.28294 2006 3 22 53816 0.0816 0.3201 0.28252 2006 3 23 53817 0.0812 0.3199 0.28217 2006 3 24 53818 0.0807 0.3198 0.28176 2006 3 25 53819 0.0803 0.3196 0.28116 2006 3 26 53820 0.0799 0.3195 0.28025 2006 3 27 53821 0.0794 0.3194 0.27899 2006 3 28 53822 0.0790 0.3193 0.27745 2006 3 29 53823 0.0786 0.3192 0.27575 2006 3 30 53824 0.0782 0.3192 0.27411 2006 3 31 53825 0.0778 0.3191 0.27268 2006 4 1 53826 0.0774 0.3190 0.27158 2006 4 2 53827 0.0770 0.3190 0.27082 2006 4 3 53828 0.0766 0.3189 0.27034 2006 4 4 53829 0.0762 0.3189 0.27004 2006 4 5 53830 0.0758 0.3188 0.26980 2006 4 6 53831 0.0755 0.3188 0.26953 2006 4 7 53832 0.0751 0.3188 0.26917 2006 4 8 53833 0.0747 0.3187 0.26868 2006 4 9 53834 0.0743 0.3187 0.26805 2006 4 10 53835 0.0740 0.3187 0.26731 2006 4 11 53836 0.0736 0.3187 0.26648 2006 4 12 53837 0.0732 0.3187 0.26563 2006 4 13 53838 0.0729 0.3187 0.26483 2006 4 14 53839 0.0725 0.3187 0.26414 2006 4 15 53840 0.0722 0.3187 0.26361 2006 4 16 53841 0.0719 0.3187 0.26327 2006 4 17 53842 0.0715 0.3187 0.26313 2006 4 18 53843 0.0712 0.3188 0.26314 2006 4 19 53844 0.0709 0.3188 0.26324 2006 4 20 53845 0.0706 0.3188 0.26331 2006 4 21 53846 0.0703 0.3188 0.26324 2006 4 22 53847 0.0700 0.3189 0.26293 2006 4 23 53848 0.0698 0.3189 0.26231 2006 4 24 53849 0.0695 0.3189 0.26140 2006 4 25 53850 0.0693 0.3190 0.26026 2006 4 26 53851 0.0690 0.3190 0.25904 2006 4 27 53852 0.0688 0.3191 0.25790 2006 4 28 53853 0.0685 0.3191 0.25698 2006 4 29 53854 0.0683 0.3191 0.25635 2006 4 30 53855 0.0681 0.3192 0.25599 2006 5 1 53856 0.0679 0.3192 0.25581 2006 5 2 53857 0.0677 0.3192 0.25565 2006 5 3 53858 0.0675 0.3193 0.25535 2006 5 4 53859 0.0673 0.3193 0.25485 2006 5 5 53860 0.0672 0.3194 0.25409 2006 5 6 53861 0.0670 0.3194 0.25311 2006 5 7 53862 0.0668 0.3194 0.25199 2006 5 8 53863 0.0667 0.3195 0.25076 2006 5 9 53864 0.0666 0.3195 0.24947 2006 5 10 53865 0.0664 0.3195 0.24820 2006 5 11 53866 0.0663 0.3195 0.24701 2006 5 12 53867 0.0662 0.3195 0.24591 2006 5 13 53868 0.0661 0.3196 0.24505 2006 5 14 53869 0.0660 0.3196 0.24443 2006 5 15 53870 0.0659 0.3196 0.24402 2006 5 16 53871 0.0658 0.3196 0.24374 2006 5 17 53872 0.0657 0.3196 0.24347 2006 5 18 53873 0.0657 0.3196 0.24314 2006 5 19 53874 0.0656 0.3195 0.24265 2006 5 20 53875 0.0655 0.3195 0.24199 2006 5 21 53876 0.0655 0.3195 0.24118 2006 5 22 53877 0.0654 0.3195 0.24018 2006 5 23 53878 0.0654 0.3194 0.23907 2006 5 24 53879 0.0653 0.3194 0.23800 2006 5 25 53880 0.0653 0.3193 0.23711 2006 5 26 53881 0.0653 0.3193 0.23653 2006 5 27 53882 0.0653 0.3192 0.23629 2006 5 28 53883 0.0652 0.3191 0.23639 2006 5 29 53884 0.0652 0.3191 0.23669 2006 5 30 53885 0.0652 0.3190 0.23710 2006 5 31 53886 0.0652 0.3189 0.23744 2006 6 1 53887 0.0652 0.3188 0.23762 2006 6 2 53888 0.0652 0.3187 0.23773 2006 6 3 53889 0.0652 0.3186 0.23783 2006 6 4 53890 0.0652 0.3184 0.23782 2006 6 5 53891 0.0652 0.3183 0.23776 2006 6 6 53892 0.0652 0.3182 0.23770 2006 6 7 53893 0.0652 0.3180 0.23774 2006 6 8 53894 0.0652 0.3179 0.23789 2006 6 9 53895 0.0652 0.3177 0.23819 2006 6 10 53896 0.0652 0.3175 0.23862 2006 6 11 53897 0.0652 0.3174 0.23922 2006 6 12 53898 0.0652 0.3172 0.23997 2006 6 13 53899 0.0652 0.3170 0.24073 2006 6 14 53900 0.0652 0.3168 0.24135 2006 6 15 53901 0.0652 0.3166 0.24170 2006 6 16 53902 0.0652 0.3164 0.24173 2006 6 17 53903 0.0652 0.3161 0.24146 2006 6 18 53904 0.0652 0.3159 0.24097 2006 6 19 53905 0.0652 0.3157 0.24043 2006 6 20 53906 0.0652 0.3154 0.23994 2006 6 21 53907 0.0651 0.3152 0.23964 2006 6 22 53908 0.0651 0.3149 0.23964 2006 6 23 53909 0.0651 0.3146 0.23997 2006 6 24 53910 0.0650 0.3144 0.24057 2006 6 25 53911 0.0650 0.3141 0.24131 2006 6 26 53912 0.0650 0.3138 0.24213 2006 6 27 53913 0.0649 0.3135 0.24293 2006 6 28 53914 0.0648 0.3132 0.24368 2006 6 29 53915 0.0648 0.3129 0.24427 2006 6 30 53916 0.0647 0.3125 0.24475 2006 7 1 53917 0.0646 0.3122 0.24517 2006 7 2 53918 0.0645 0.3119 0.24551 2006 7 3 53919 0.0644 0.3116 0.24579 2006 7 4 53920 0.0643 0.3112 0.24608 2006 7 5 53921 0.0642 0.3109 0.24649 2006 7 6 53922 0.0641 0.3105 0.24706 2006 7 7 53923 0.0639 0.3102 0.24778 2006 7 8 53924 0.0638 0.3098 0.24871 2006 7 9 53925 0.0636 0.3094 0.24984 2006 7 10 53926 0.0635 0.3091 0.25106 2006 7 11 53927 0.0633 0.3087 0.25216 2006 7 12 53928 0.0631 0.3083 0.25307 2006 7 13 53929 0.0629 0.3079 0.25370 2006 7 14 53930 0.0627 0.3076 0.25403 2006 7 15 53931 0.0625 0.3072 0.25408 2006 7 16 53932 0.0622 0.3068 0.25396 2006 7 17 53933 0.0620 0.3064 0.25386 2006 7 18 53934 0.0617 0.3060 0.25400 2006 7 19 53935 0.0615 0.3056 0.25433 2006 7 20 53936 0.0612 0.3052 0.25494 2006 7 21 53937 0.0609 0.3048 0.25584 2006 7 22 53938 0.0606 0.3045 0.25690 2006 7 23 53939 0.0603 0.3041 0.25805 2006 7 24 53940 0.0599 0.3037 0.25914 2006 7 25 53941 0.0596 0.3033 0.26013 2006 7 26 53942 0.0592 0.3029 0.26101 2006 7 27 53943 0.0588 0.3025 0.26171 2006 7 28 53944 0.0584 0.3021 0.26222 2006 7 29 53945 0.0580 0.3018 0.26260 2006 7 30 53946 0.0576 0.3014 0.26297 2006 7 31 53947 0.0572 0.3010 0.26329 2006 8 1 53948 0.0567 0.3006 0.26369 2006 8 2 53949 0.0563 0.3003 0.26423 2006 8 3 53950 0.0558 0.2999 0.26495 2006 8 4 53951 0.0553 0.2995 0.26585 2006 8 5 53952 0.0548 0.2992 0.26692 2006 8 6 53953 0.0543 0.2988 0.26806 2006 8 7 53954 0.0537 0.2985 0.26919 2006 8 8 53955 0.0532 0.2982 0.27023 2006 8 9 53956 0.0526 0.2978 0.27095 2006 8 10 53957 0.0521 0.2975 0.27133 2006 8 11 53958 0.0515 0.2972 0.27137 2006 8 12 53959 0.0509 0.2969 0.27118 2006 8 13 53960 0.0502 0.2966 0.27091 2006 8 14 53961 0.0496 0.2963 0.27080 2006 8 15 53962 0.0490 0.2961 0.27093 2006 8 16 53963 0.0483 0.2958 0.27138 2006 8 17 53964 0.0476 0.2955 0.27212 2006 8 18 53965 0.0469 0.2953 0.27304 2006 8 19 53966 0.0462 0.2950 0.27405 2006 8 20 53967 0.0455 0.2948 0.27504 2006 8 21 53968 0.0448 0.2946 0.27592 2006 8 22 53969 0.0441 0.2944 0.27663 2006 8 23 53970 0.0433 0.2942 0.27713 2006 8 24 53971 0.0426 0.2940 0.27744 2006 8 25 53972 0.0418 0.2939 0.27755 2006 8 26 53973 0.0410 0.2937 0.27752 2006 8 27 53974 0.0402 0.2936 0.27753 2006 8 28 53975 0.0394 0.2934 0.27757 2006 8 29 53976 0.0386 0.2933 0.27773 2006 8 30 53977 0.0378 0.2932 0.27807 2006 8 31 53978 0.0369 0.2931 0.27861 2006 9 1 53979 0.0361 0.2931 0.27933 2006 9 2 53980 0.0352 0.2930 0.28021 2006 9 3 53981 0.0343 0.2930 0.28115 2006 9 4 53982 0.0335 0.2929 0.28199 2006 9 5 53983 0.0326 0.2929 0.28258 2006 9 6 53984 0.0317 0.2929 0.28285 2006 9 7 53985 0.0308 0.2930 0.28277 2006 9 8 53986 0.0299 0.2930 0.28239 2006 9 9 53987 0.0290 0.2931 0.28183 2006 9 10 53988 0.0281 0.2931 0.28131 2006 9 11 53989 0.0271 0.2932 0.28104 2006 9 12 53990 0.0262 0.2933 0.28116 2006 9 13 53991 0.0253 0.2934 0.28167 2006 9 14 53992 0.0243 0.2936 0.28244 2006 9 15 53993 0.0234 0.2937 0.28332 2006 9 16 53994 0.0224 0.2939 0.28418 2006 9 17 53995 0.0215 0.2941 0.28494 2006 9 18 53996 0.0205 0.2943 0.28553 2006 9 19 53997 0.0195 0.2946 0.28593 2006 9 20 53998 0.0186 0.2948 0.28611 2006 9 21 53999 0.0176 0.2951 0.28607 2006 9 22 54000 0.0166 0.2953 0.28584 2006 9 23 54001 0.0157 0.2956 0.28546 2006 9 24 54002 0.0147 0.2960 0.28516 2006 9 25 54003 0.0137 0.2963 0.28494 2006 9 26 54004 0.0128 0.2967 0.28486 2006 9 27 54005 0.0118 0.2970 0.28497 2006 9 28 54006 0.0108 0.2974 0.28522 2006 9 29 54007 0.0099 0.2978 0.28557 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) 53623 -65.10 .28 -5.00 .14 53624 -65.22 .19 -5.13 .34 53625 -65.11 .19 -5.18 .34 53626 -64.73 .74 -5.15 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53623 0.182 0.111 -0.110 0.140 53624 0.204 0.076 -0.137 0.340 53625 0.233 0.076 -0.135 0.340 53626 0.253 0.294 -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 **************************************************************************