********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 January 2006 Vol. XIX No. 002 ______________________________________________________________________ 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 = +0.3 seconds beginning 01 January 2006 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * >>> A positive leap second was 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 6 1 6 53741 .04949 .00002 .38180 .00003 .335555 .000013 6 1 7 53742 .04959 .00002 .38167 .00003 .334656 .000013 6 1 8 53743 .04953 .00003 .38153 .00003 .333967 .000013 6 1 9 53744 .04952 .00003 .38130 .00003 .333516 .000013 6 1 10 53745 .04957 .00003 .38111 .00003 .333321 .000013 6 1 11 53746 .04924 .00003 .38096 .00003 .333358 .000013 6 1 12 53747 .04883 .00003 .38062 .00003 .333562 .000011 _______________________________________________________________________ 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 = .0364 - .0916 cos A - .1241 sin A + .1078 cos C + .1401 sin C y = .3569 - .1205 cos A + .0828 sin A + .1401 cos C - .1078 sin C UT1-UTC = .3309 - .00041 (MJD - 53752) - (UT2-UT1) where A = 2*pi*(MJD-53747)/365.25 and C = 2*pi*(MJD-53747)/435. TAI-UTC(MJD 53748) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53747)**0.80 S t = 0.00025 (MJD-53747)**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) 2006 1 13 53748 0.0486 0.3802 0.33384 2006 1 14 53749 0.0485 0.3799 0.33405 2006 1 15 53750 0.0485 0.3796 0.33411 2006 1 16 53751 0.0485 0.3793 0.33401 2006 1 17 53752 0.0486 0.3791 0.33375 2006 1 18 53753 0.0487 0.3789 0.33333 2006 1 19 53754 0.0489 0.3788 0.33276 2006 1 20 53755 0.0491 0.3787 0.33214 2006 1 21 53756 0.0493 0.3785 0.33150 2006 1 22 53757 0.0496 0.3784 0.33090 2006 1 23 53758 0.0499 0.3783 0.33040 2006 1 24 53759 0.0501 0.3782 0.33007 2006 1 25 53760 0.0504 0.3782 0.32992 2006 1 26 53761 0.0508 0.3781 0.32991 2006 1 27 53762 0.0511 0.3780 0.32998 2006 1 28 53763 0.0514 0.3779 0.32997 2006 1 29 53764 0.0518 0.3778 0.32976 2006 1 30 53765 0.0521 0.3777 0.32921 2006 1 31 53766 0.0525 0.3777 0.32831 2006 2 1 53767 0.0528 0.3776 0.32712 2006 2 2 53768 0.0532 0.3775 0.32579 2006 2 3 53769 0.0536 0.3774 0.32450 2006 2 4 53770 0.0540 0.3773 0.32341 2006 2 5 53771 0.0543 0.3772 0.32262 2006 2 6 53772 0.0547 0.3771 0.32214 2006 2 7 53773 0.0551 0.3770 0.32193 2006 2 8 53774 0.0555 0.3770 0.32190 2006 2 9 53775 0.0559 0.3769 0.32194 2006 2 10 53776 0.0563 0.3768 0.32196 2006 2 11 53777 0.0567 0.3767 0.32189 2006 2 12 53778 0.0571 0.3766 0.32167 2006 2 13 53779 0.0575 0.3765 0.32126 2006 2 14 53780 0.0579 0.3764 0.32066 2006 2 15 53781 0.0583 0.3763 0.31989 2006 2 16 53782 0.0588 0.3762 0.31901 2006 2 17 53783 0.0592 0.3761 0.31809 2006 2 18 53784 0.0596 0.3760 0.31718 2006 2 19 53785 0.0600 0.3758 0.31636 2006 2 20 53786 0.0604 0.3757 0.31568 2006 2 21 53787 0.0609 0.3756 0.31516 2006 2 22 53788 0.0613 0.3755 0.31482 2006 2 23 53789 0.0617 0.3754 0.31461 2006 2 24 53790 0.0621 0.3753 0.31440 2006 2 25 53791 0.0626 0.3752 0.31408 2006 2 26 53792 0.0630 0.3751 0.31348 2006 2 27 53793 0.0635 0.3750 0.31254 2006 2 28 53794 0.0639 0.3749 0.31126 2006 3 1 53795 0.0643 0.3748 0.30975 2006 3 2 53796 0.0648 0.3746 0.30819 2006 3 3 53797 0.0652 0.3745 0.30676 2006 3 4 53798 0.0657 0.3744 0.30561 2006 3 5 53799 0.0661 0.3743 0.30478 2006 3 6 53800 0.0665 0.3741 0.30427 2006 3 7 53801 0.0670 0.3740 0.30397 2006 3 8 53802 0.0675 0.3739 0.30378 2006 3 9 53803 0.0679 0.3738 0.30360 2006 3 10 53804 0.0684 0.3736 0.30335 2006 3 11 53805 0.0688 0.3735 0.30297 2006 3 12 53806 0.0693 0.3734 0.30242 2006 3 13 53807 0.0697 0.3732 0.30169 2006 3 14 53808 0.0702 0.3731 0.30080 2006 3 15 53809 0.0706 0.3729 0.29979 2006 3 16 53810 0.0711 0.3728 0.29872 2006 3 17 53811 0.0715 0.3726 0.29765 2006 3 18 53812 0.0720 0.3725 0.29667 2006 3 19 53813 0.0724 0.3723 0.29581 2006 3 20 53814 0.0729 0.3722 0.29513 2006 3 21 53815 0.0733 0.3720 0.29462 2006 3 22 53816 0.0738 0.3719 0.29425 2006 3 23 53817 0.0742 0.3717 0.29393 2006 3 24 53818 0.0747 0.3715 0.29354 2006 3 25 53819 0.0751 0.3714 0.29296 2006 3 26 53820 0.0756 0.3712 0.29206 2006 3 27 53821 0.0760 0.3710 0.29083 2006 3 28 53822 0.0765 0.3708 0.28930 2006 3 29 53823 0.0769 0.3707 0.28763 2006 3 30 53824 0.0774 0.3705 0.28600 2006 3 31 53825 0.0778 0.3703 0.28458 2006 4 1 53826 0.0783 0.3701 0.28348 2006 4 2 53827 0.0787 0.3699 0.28271 2006 4 3 53828 0.0792 0.3697 0.28221 2006 4 4 53829 0.0796 0.3695 0.28187 2006 4 5 53830 0.0801 0.3692 0.28158 2006 4 6 53831 0.0805 0.3690 0.28123 2006 4 7 53832 0.0810 0.3688 0.28077 2006 4 8 53833 0.0814 0.3686 0.28014 2006 4 9 53834 0.0819 0.3683 0.27933 2006 4 10 53835 0.0823 0.3681 0.27837 2006 4 11 53836 0.0827 0.3679 0.27727 2006 4 12 53837 0.0832 0.3676 0.27609 2006 4 13 53838 0.0836 0.3673 0.27492 2006 4 14 53839 0.0841 0.3671 0.27381 2006 4 15 53840 0.0845 0.3668 0.27284 2006 4 16 53841 0.0850 0.3665 0.27206 2006 4 17 53842 0.0854 0.3663 0.27147 2006 4 18 53843 0.0858 0.3660 0.27106 2006 4 19 53844 0.0863 0.3657 0.27074 2006 4 20 53845 0.0867 0.3654 0.27041 2006 4 21 53846 0.0871 0.3651 0.26995 2006 4 22 53847 0.0876 0.3647 0.26925 2006 4 23 53848 0.0880 0.3644 0.26825 2006 4 24 53849 0.0884 0.3641 0.26695 2006 4 25 53850 0.0889 0.3638 0.26546 2006 4 26 53851 0.0893 0.3634 0.26393 2006 4 27 53852 0.0897 0.3631 0.26254 2006 4 28 53853 0.0901 0.3627 0.26145 2006 4 29 53854 0.0906 0.3623 0.26070 2006 4 30 53855 0.0910 0.3619 0.26026 2006 5 1 53856 0.0914 0.3616 0.26005 2006 5 2 53857 0.0918 0.3612 0.25995 2006 5 3 53858 0.0923 0.3608 0.25984 2006 5 4 53859 0.0927 0.3604 0.25966 2006 5 5 53860 0.0931 0.3599 0.25934 2006 5 6 53861 0.0935 0.3595 0.25887 2006 5 7 53862 0.0939 0.3591 0.25825 2006 5 8 53863 0.0943 0.3586 0.25751 2006 5 9 53864 0.0948 0.3582 0.25669 2006 5 10 53865 0.0952 0.3577 0.25587 2006 5 11 53866 0.0956 0.3572 0.25511 2006 5 12 53867 0.0960 0.3567 0.25448 2006 5 13 53868 0.0964 0.3562 0.25404 2006 5 14 53869 0.0968 0.3557 0.25381 2006 5 15 53870 0.0972 0.3552 0.25377 2006 5 16 53871 0.0976 0.3547 0.25386 2006 5 17 53872 0.0980 0.3541 0.25397 2006 5 18 53873 0.0984 0.3536 0.25400 2006 5 19 53874 0.0988 0.3530 0.25382 2006 5 20 53875 0.0992 0.3525 0.25338 2006 5 21 53876 0.0996 0.3519 0.25268 2006 5 22 53877 0.1000 0.3513 0.25179 2006 5 23 53878 0.1003 0.3507 0.25082 2006 5 24 53879 0.1007 0.3501 0.24994 2006 5 25 53880 0.1011 0.3495 0.24928 2006 5 26 53881 0.1015 0.3489 0.24892 2006 5 27 53882 0.1018 0.3482 0.24888 2006 5 28 53883 0.1022 0.3476 0.24910 2006 5 29 53884 0.1026 0.3469 0.24948 2006 5 30 53885 0.1029 0.3462 0.24990 2006 5 31 53886 0.1033 0.3455 0.25027 2006 6 1 53887 0.1036 0.3448 0.25052 2006 6 2 53888 0.1040 0.3441 0.25062 2006 6 3 53889 0.1043 0.3434 0.25058 2006 6 4 53890 0.1046 0.3427 0.25041 2006 6 5 53891 0.1050 0.3419 0.25016 2006 6 6 53892 0.1053 0.3412 0.24989 2006 6 7 53893 0.1056 0.3404 0.24966 2006 6 8 53894 0.1059 0.3397 0.24955 2006 6 9 53895 0.1062 0.3389 0.24959 2006 6 10 53896 0.1065 0.3381 0.24984 2006 6 11 53897 0.1068 0.3373 0.25029 2006 6 12 53898 0.1071 0.3365 0.25089 2006 6 13 53899 0.1074 0.3356 0.25154 2006 6 14 53900 0.1076 0.3348 0.25212 2006 6 15 53901 0.1079 0.3340 0.25251 2006 6 16 53902 0.1081 0.3331 0.25264 2006 6 17 53903 0.1084 0.3322 0.25250 2006 6 18 53904 0.1086 0.3314 0.25216 2006 6 19 53905 0.1088 0.3305 0.25174 2006 6 20 53906 0.1091 0.3296 0.25138 2006 6 21 53907 0.1093 0.3287 0.25121 2006 6 22 53908 0.1095 0.3278 0.25131 2006 6 23 53909 0.1096 0.3268 0.25171 2006 6 24 53910 0.1098 0.3259 0.25237 2006 6 25 53911 0.1100 0.3250 0.25321 2006 6 26 53912 0.1101 0.3240 0.25411 2006 6 27 53913 0.1103 0.3231 0.25498 2006 6 28 53914 0.1104 0.3221 0.25574 2006 6 29 53915 0.1105 0.3211 0.25634 2006 6 30 53916 0.1106 0.3201 0.25679 2006 7 1 53917 0.1107 0.3191 0.25709 2006 7 2 53918 0.1108 0.3182 0.25730 2006 7 3 53919 0.1109 0.3171 0.25746 2006 7 4 53920 0.1109 0.3161 0.25765 2006 7 5 53921 0.1109 0.3151 0.25792 2006 7 6 53922 0.1109 0.3141 0.25834 2006 7 7 53923 0.1109 0.3131 0.25893 2006 7 8 53924 0.1109 0.3120 0.25971 2006 7 9 53925 0.1109 0.3110 0.26066 2006 7 10 53926 0.1109 0.3100 0.26169 2006 7 11 53927 0.1108 0.3089 0.26267 2006 7 12 53928 0.1107 0.3079 0.26349 2006 7 13 53929 0.1106 0.3068 0.26403 2006 7 14 53930 0.1105 0.3058 0.26426 2006 7 15 53931 0.1104 0.3047 0.26424 2006 7 16 53932 0.1102 0.3036 0.26407 2006 7 17 53933 0.1100 0.3026 0.26393 2006 7 18 53934 0.1099 0.3015 0.26393 2006 7 19 53935 0.1096 0.3004 0.26416 2006 7 20 53936 0.1094 0.2993 0.26465 2006 7 21 53937 0.1092 0.2983 0.26535 2006 7 22 53938 0.1088 0.2972 0.26620 2006 7 23 53939 0.1085 0.2961 0.26709 2006 7 24 53940 0.1081 0.2951 0.26796 2006 7 25 53941 0.1077 0.2940 0.26873 2006 7 26 53942 0.1073 0.2929 0.26936 2006 7 27 53943 0.1068 0.2919 0.26985 2006 7 28 53944 0.1064 0.2908 0.27022 2006 7 29 53945 0.1059 0.2897 0.27050 2006 7 30 53946 0.1054 0.2887 0.27074 2006 7 31 53947 0.1048 0.2876 0.27100 2006 8 1 53948 0.1043 0.2866 0.27134 2006 8 2 53949 0.1037 0.2855 0.27180 2006 8 3 53950 0.1031 0.2845 0.27242 2006 8 4 53951 0.1025 0.2835 0.27321 2006 8 5 53952 0.1018 0.2824 0.27416 2006 8 6 53953 0.1011 0.2814 0.27520 2006 8 7 53954 0.1004 0.2804 0.27621 2006 8 8 53955 0.0997 0.2794 0.27705 2006 8 9 53956 0.0989 0.2784 0.27759 2006 8 10 53957 0.0982 0.2774 0.27775 2006 8 11 53958 0.0974 0.2764 0.27754 2006 8 12 53959 0.0965 0.2755 0.27708 2006 8 13 53960 0.0957 0.2745 0.27657 2006 8 14 53961 0.0948 0.2735 0.27619 2006 8 15 53962 0.0939 0.2726 0.27610 2006 8 16 53963 0.0929 0.2717 0.27632 2006 8 17 53964 0.0920 0.2707 0.27682 2006 8 18 53965 0.0910 0.2698 0.27750 2006 8 19 53966 0.0900 0.2689 0.27826 2006 8 20 53967 0.0890 0.2681 0.27902 2006 8 21 53968 0.0879 0.2672 0.27972 2006 8 22 53969 0.0868 0.2664 0.28031 2006 8 23 53970 0.0857 0.2655 0.28074 2006 8 24 53971 0.0845 0.2647 0.28098 2006 8 25 53972 0.0834 0.2639 0.28103 2006 8 26 53973 0.0822 0.2631 0.28095 2006 8 27 53974 0.0810 0.2623 0.28086 2006 8 28 53975 0.0797 0.2616 0.28083 2006 8 29 53976 0.0784 0.2608 0.28085 2006 8 30 53977 0.0771 0.2601 0.28100 2006 8 31 53978 0.0758 0.2594 0.28132 2006 9 1 53979 0.0745 0.2588 0.28180 2006 9 2 53980 0.0731 0.2581 0.28243 2006 9 3 53981 0.0717 0.2575 0.28306 2006 9 4 53982 0.0703 0.2568 0.28355 2006 9 5 53983 0.0688 0.2562 0.28386 2006 9 6 53984 0.0673 0.2557 0.28389 2006 9 7 53985 0.0659 0.2551 0.28359 2006 9 8 53986 0.0643 0.2546 0.28299 2006 9 9 53987 0.0628 0.2541 0.28225 2006 9 10 53988 0.0612 0.2536 0.28159 2006 9 11 53989 0.0596 0.2531 0.28111 2006 9 12 53990 0.0580 0.2527 0.28086 2006 9 13 53991 0.0564 0.2523 0.28086 2006 9 14 53992 0.0547 0.2519 0.28103 2006 9 15 53993 0.0531 0.2515 0.28129 2006 9 16 53994 0.0514 0.2512 0.28157 2006 9 17 53995 0.0496 0.2509 0.28170 2006 9 18 53996 0.0479 0.2506 0.28168 2006 9 19 53997 0.0462 0.2504 0.28146 2006 9 20 53998 0.0444 0.2501 0.28099 2006 9 21 53999 0.0426 0.2499 0.28035 2006 9 22 54000 0.0408 0.2498 0.27962 2006 9 23 54001 0.0389 0.2496 0.27885 2006 9 24 54002 0.0371 0.2495 0.27805 2006 9 25 54003 0.0352 0.2494 0.27736 2006 9 26 54004 0.0334 0.2493 0.27679 2006 9 27 54005 0.0315 0.2493 0.27640 2006 9 28 54006 0.0296 0.2493 0.27617 2006 9 29 54007 0.0276 0.2494 0.27610 2006 9 30 54008 0.0257 0.2494 0.27614 2006 10 1 54009 0.0237 0.2495 0.27615 2006 10 2 54010 0.0218 0.2496 0.27598 2006 10 3 54011 0.0198 0.2498 0.27551 2006 10 4 54012 0.0178 0.2500 0.27470 2006 10 5 54013 0.0158 0.2502 0.27356 2006 10 6 54014 0.0138 0.2504 0.27217 2006 10 7 54015 0.0118 0.2507 0.27071 2006 10 8 54016 0.0098 0.2510 0.26941 2006 10 9 54017 0.0078 0.2514 0.26834 2006 10 10 54018 0.0057 0.2517 0.26757 2006 10 11 54019 0.0037 0.2521 0.26708 2006 10 12 54020 0.0017 0.2526 0.26682 2006 10 13 54021 -0.0004 0.2530 0.26667 2006 10 14 54022 -0.0025 0.2535 0.26653 2006 10 15 54023 -0.0045 0.2541 0.26626 2006 10 16 54024 -0.0066 0.2546 0.26585 2006 10 17 54025 -0.0086 0.2552 0.26525 2006 10 18 54026 -0.0107 0.2559 0.26450 2006 10 19 54027 -0.0127 0.2565 0.26365 2006 10 20 54028 -0.0148 0.2572 0.26277 2006 10 21 54029 -0.0169 0.2580 0.26197 2006 10 22 54030 -0.0189 0.2587 0.26131 2006 10 23 54031 -0.0210 0.2595 0.26087 2006 10 24 54032 -0.0230 0.2603 0.26072 2006 10 25 54033 -0.0250 0.2612 0.26077 2006 10 26 54034 -0.0271 0.2621 0.26098 2006 10 27 54035 -0.0291 0.2630 0.26122 2006 10 28 54036 -0.0311 0.2640 0.26142 2006 10 29 54037 -0.0331 0.2649 0.26157 2006 10 30 54038 -0.0351 0.2660 0.26156 2006 10 31 54039 -0.0371 0.2670 0.26125 2006 11 1 54040 -0.0391 0.2681 0.26056 2006 11 2 54041 -0.0411 0.2692 0.25964 2006 11 3 54042 -0.0430 0.2703 0.25862 2006 11 4 54043 -0.0450 0.2715 0.25771 2006 11 5 54044 -0.0469 0.2727 0.25698 2006 11 6 54045 -0.0488 0.2739 0.25653 2006 11 7 54046 -0.0507 0.2752 0.25634 2006 11 8 54047 -0.0526 0.2765 0.25638 2006 11 9 54048 -0.0544 0.2778 0.25654 2006 11 10 54049 -0.0563 0.2792 0.25668 2006 11 11 54050 -0.0581 0.2806 0.25670 2006 11 12 54051 -0.0599 0.2820 0.25659 2006 11 13 54052 -0.0617 0.2834 0.25635 2006 11 14 54053 -0.0635 0.2849 0.25603 2006 11 15 54054 -0.0652 0.2864 0.25564 2006 11 16 54055 -0.0669 0.2879 0.25518 2006 11 17 54056 -0.0686 0.2894 0.25469 2006 11 18 54057 -0.0703 0.2910 0.25428 2006 11 19 54058 -0.0719 0.2926 0.25402 2006 11 20 54059 -0.0735 0.2942 0.25391 2006 11 21 54060 -0.0751 0.2959 0.25393 2006 11 22 54061 -0.0767 0.2976 0.25400 2006 11 23 54062 -0.0782 0.2993 0.25411 2006 11 24 54063 -0.0797 0.3010 0.25421 2006 11 25 54064 -0.0812 0.3028 0.25422 2006 11 26 54065 -0.0827 0.3045 0.25409 2006 11 27 54066 -0.0841 0.3063 0.25364 2006 11 28 54067 -0.0855 0.3081 0.25276 2006 11 29 54068 -0.0868 0.3100 0.25150 2006 11 30 54069 -0.0881 0.3119 0.24997 2006 12 1 54070 -0.0894 0.3137 0.24833 2006 12 2 54071 -0.0907 0.3156 0.24677 2006 12 3 54072 -0.0919 0.3176 0.24550 2006 12 4 54073 -0.0931 0.3195 0.24457 2006 12 5 54074 -0.0942 0.3215 0.24391 2006 12 6 54075 -0.0953 0.3235 0.24345 2006 12 7 54076 -0.0964 0.3255 0.24306 2006 12 8 54077 -0.0975 0.3275 0.24258 2006 12 9 54078 -0.0985 0.3295 0.24199 2006 12 10 54079 -0.0994 0.3316 0.24127 2006 12 11 54080 -0.1003 0.3337 0.24041 2006 12 12 54081 -0.1012 0.3358 0.23943 2006 12 13 54082 -0.1021 0.3379 0.23837 2006 12 14 54083 -0.1029 0.3400 0.23733 2006 12 15 54084 -0.1036 0.3421 0.23640 2006 12 16 54085 -0.1044 0.3442 0.23568 2006 12 17 54086 -0.1051 0.3464 0.23523 2006 12 18 54087 -0.1057 0.3486 0.23496 2006 12 19 54088 -0.1063 0.3508 0.23482 2006 12 20 54089 -0.1069 0.3530 0.23476 2006 12 21 54090 -0.1074 0.3552 0.23472 2006 12 22 54091 -0.1079 0.3574 0.23462 2006 12 23 54092 -0.1083 0.3596 0.23440 2006 12 24 54093 -0.1087 0.3618 0.23399 2006 12 25 54094 -0.1091 0.3641 0.23337 2006 12 26 54095 -0.1094 0.3663 0.23255 2006 12 27 54096 -0.1096 0.3686 0.23157 2006 12 28 54097 -0.1098 0.3708 0.23054 2006 12 29 54098 -0.1100 0.3731 0.22972 2006 12 30 54099 -0.1102 0.3754 0.22927 2006 12 31 54100 -0.1102 0.3777 0.22913 2007 1 1 54101 -0.1103 0.3799 0.22928 2007 1 2 54102 -0.1103 0.3822 0.22964 2007 1 3 54103 -0.1102 0.3845 0.23012 2007 1 4 54104 -0.1102 0.3868 0.23058 2007 1 5 54105 -0.1100 0.3891 0.23087 2007 1 6 54106 -0.1099 0.3914 0.23092 2007 1 7 54107 -0.1096 0.3937 0.23077 2007 1 8 54108 -0.1094 0.3960 0.23047 2007 1 9 54109 -0.1091 0.3983 0.23003 2007 1 10 54110 -0.1087 0.4006 0.22949 2007 1 11 54111 -0.1083 0.4029 0.22891 2007 1 12 54112 -0.1079 0.4052 0.22838 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) 53725 -55.66 .34 -1.73 .19 53726 -55.41 .34 -1.64 .19 53727 -55.33 .34 -1.46 .19 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53725 0.237 0.135 -0.247 0.190 53726 0.235 0.135 -0.250 0.190 53727 0.224 0.135 -0.249 0.190 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 ************************************************************************** A positive leap second was 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 **************************************************************************