********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 January 2006 Vol. XIX No. 003 ______________________________________________________________________ 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 13 53748 .04848 .00002 .38027 .00002 .333767 .000012 6 1 14 53749 .04865 .00002 .37993 .00004 .334000 .000012 6 1 15 53750 .04923 .00002 .37970 .00005 .334101 .000012 6 1 16 53751 .04997 .00002 .37965 .00004 .334077 .000012 6 1 17 53752 .05044 .00002 .37989 .00004 .333944 .000012 6 1 18 53753 .05062 .00002 .38027 .00005 .333625 .000013 6 1 19 53754 .05080 .00002 .38056 .00005 .333101 .000012 _______________________________________________________________________ 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 = .0415 - .1075 cos A - .1180 sin A + .1196 cos C + .1340 sin C y = .3580 - .1146 cos A + .0978 sin A + .1340 cos C - .1196 sin C UT1-UTC = .3278 - .00041 (MJD - 53759) - (UT2-UT1) where A = 2*pi*(MJD-53754)/365.25 and C = 2*pi*(MJD-53754)/435. TAI-UTC(MJD 53755) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53754)**0.80 S t = 0.00025 (MJD-53754)**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 20 53755 0.0510 0.3808 0.33241 2006 1 21 53756 0.0512 0.3810 0.33163 2006 1 22 53757 0.0513 0.3811 0.33085 2006 1 23 53758 0.0515 0.3811 0.33015 2006 1 24 53759 0.0516 0.3812 0.32957 2006 1 25 53760 0.0518 0.3812 0.32919 2006 1 26 53761 0.0520 0.3811 0.32901 2006 1 27 53762 0.0522 0.3811 0.32898 2006 1 28 53763 0.0524 0.3810 0.32899 2006 1 29 53764 0.0526 0.3809 0.32884 2006 1 30 53765 0.0528 0.3808 0.32840 2006 1 31 53766 0.0531 0.3807 0.32762 2006 2 1 53767 0.0533 0.3806 0.32657 2006 2 2 53768 0.0536 0.3805 0.32538 2006 2 3 53769 0.0538 0.3804 0.32424 2006 2 4 53770 0.0541 0.3803 0.32330 2006 2 5 53771 0.0544 0.3802 0.32264 2006 2 6 53772 0.0547 0.3801 0.32225 2006 2 7 53773 0.0549 0.3800 0.32208 2006 2 8 53774 0.0553 0.3799 0.32206 2006 2 9 53775 0.0556 0.3798 0.32208 2006 2 10 53776 0.0559 0.3797 0.32206 2006 2 11 53777 0.0562 0.3796 0.32194 2006 2 12 53778 0.0566 0.3795 0.32165 2006 2 13 53779 0.0569 0.3795 0.32118 2006 2 14 53780 0.0573 0.3794 0.32053 2006 2 15 53781 0.0576 0.3793 0.31972 2006 2 16 53782 0.0580 0.3792 0.31883 2006 2 17 53783 0.0583 0.3791 0.31790 2006 2 18 53784 0.0587 0.3791 0.31702 2006 2 19 53785 0.0591 0.3790 0.31624 2006 2 20 53786 0.0595 0.3789 0.31559 2006 2 21 53787 0.0599 0.3789 0.31512 2006 2 22 53788 0.0603 0.3788 0.31481 2006 2 23 53789 0.0607 0.3787 0.31462 2006 2 24 53790 0.0611 0.3787 0.31443 2006 2 25 53791 0.0616 0.3786 0.31410 2006 2 26 53792 0.0620 0.3785 0.31350 2006 2 27 53793 0.0624 0.3785 0.31254 2006 2 28 53794 0.0628 0.3784 0.31124 2006 3 1 53795 0.0633 0.3783 0.30970 2006 3 2 53796 0.0637 0.3783 0.30809 2006 3 3 53797 0.0642 0.3782 0.30663 2006 3 4 53798 0.0646 0.3781 0.30543 2006 3 5 53799 0.0651 0.3781 0.30457 2006 3 6 53800 0.0656 0.3780 0.30400 2006 3 7 53801 0.0660 0.3779 0.30365 2006 3 8 53802 0.0665 0.3778 0.30340 2006 3 9 53803 0.0670 0.3778 0.30316 2006 3 10 53804 0.0675 0.3777 0.30286 2006 3 11 53805 0.0679 0.3776 0.30242 2006 3 12 53806 0.0684 0.3775 0.30182 2006 3 13 53807 0.0689 0.3774 0.30103 2006 3 14 53808 0.0694 0.3773 0.30007 2006 3 15 53809 0.0699 0.3772 0.29901 2006 3 16 53810 0.0704 0.3772 0.29789 2006 3 17 53811 0.0709 0.3771 0.29680 2006 3 18 53812 0.0714 0.3770 0.29580 2006 3 19 53813 0.0719 0.3769 0.29494 2006 3 20 53814 0.0724 0.3768 0.29427 2006 3 21 53815 0.0729 0.3767 0.29377 2006 3 22 53816 0.0734 0.3766 0.29343 2006 3 23 53817 0.0739 0.3764 0.29314 2006 3 24 53818 0.0744 0.3763 0.29279 2006 3 25 53819 0.0750 0.3762 0.29225 2006 3 26 53820 0.0755 0.3761 0.29140 2006 3 27 53821 0.0760 0.3759 0.29019 2006 3 28 53822 0.0765 0.3758 0.28868 2006 3 29 53823 0.0770 0.3757 0.28701 2006 3 30 53824 0.0775 0.3755 0.28538 2006 3 31 53825 0.0781 0.3754 0.28395 2006 4 1 53826 0.0786 0.3752 0.28284 2006 4 2 53827 0.0791 0.3750 0.28206 2006 4 3 53828 0.0796 0.3749 0.28154 2006 4 4 53829 0.0801 0.3747 0.28119 2006 4 5 53830 0.0807 0.3745 0.28089 2006 4 6 53831 0.0812 0.3743 0.28056 2006 4 7 53832 0.0817 0.3741 0.28011 2006 4 8 53833 0.0822 0.3739 0.27953 2006 4 9 53834 0.0828 0.3737 0.27878 2006 4 10 53835 0.0833 0.3735 0.27787 2006 4 11 53836 0.0838 0.3733 0.27684 2006 4 12 53837 0.0843 0.3731 0.27573 2006 4 13 53838 0.0848 0.3728 0.27463 2006 4 14 53839 0.0854 0.3726 0.27360 2006 4 15 53840 0.0859 0.3723 0.27271 2006 4 16 53841 0.0864 0.3721 0.27200 2006 4 17 53842 0.0869 0.3718 0.27148 2006 4 18 53843 0.0874 0.3715 0.27112 2006 4 19 53844 0.0880 0.3712 0.27084 2006 4 20 53845 0.0885 0.3710 0.27054 2006 4 21 53846 0.0890 0.3707 0.27011 2006 4 22 53847 0.0895 0.3704 0.26943 2006 4 23 53848 0.0900 0.3700 0.26844 2006 4 24 53849 0.0905 0.3697 0.26715 2006 4 25 53850 0.0910 0.3694 0.26566 2006 4 26 53851 0.0916 0.3690 0.26412 2006 4 27 53852 0.0921 0.3687 0.26272 2006 4 28 53853 0.0926 0.3683 0.26159 2006 4 29 53854 0.0931 0.3679 0.26080 2006 4 30 53855 0.0936 0.3676 0.26032 2006 5 1 53856 0.0941 0.3672 0.26007 2006 5 2 53857 0.0946 0.3668 0.25993 2006 5 3 53858 0.0951 0.3664 0.25980 2006 5 4 53859 0.0956 0.3659 0.25958 2006 5 5 53860 0.0961 0.3655 0.25926 2006 5 6 53861 0.0966 0.3651 0.25879 2006 5 7 53862 0.0970 0.3646 0.25818 2006 5 8 53863 0.0975 0.3642 0.25744 2006 5 9 53864 0.0980 0.3637 0.25663 2006 5 10 53865 0.0985 0.3632 0.25582 2006 5 11 53866 0.0990 0.3627 0.25507 2006 5 12 53867 0.0994 0.3622 0.25446 2006 5 13 53868 0.0999 0.3617 0.25403 2006 5 14 53869 0.1004 0.3611 0.25381 2006 5 15 53870 0.1008 0.3606 0.25378 2006 5 16 53871 0.1013 0.3600 0.25388 2006 5 17 53872 0.1018 0.3595 0.25400 2006 5 18 53873 0.1022 0.3589 0.25403 2006 5 19 53874 0.1027 0.3583 0.25386 2006 5 20 53875 0.1031 0.3577 0.25342 2006 5 21 53876 0.1036 0.3571 0.25273 2006 5 22 53877 0.1040 0.3565 0.25183 2006 5 23 53878 0.1044 0.3558 0.25087 2006 5 24 53879 0.1049 0.3552 0.24998 2006 5 25 53880 0.1053 0.3545 0.24931 2006 5 26 53881 0.1057 0.3539 0.24895 2006 5 27 53882 0.1061 0.3532 0.24890 2006 5 28 53883 0.1065 0.3525 0.24911 2006 5 29 53884 0.1069 0.3518 0.24948 2006 5 30 53885 0.1073 0.3511 0.24988 2006 5 31 53886 0.1077 0.3503 0.25024 2006 6 1 53887 0.1081 0.3496 0.25048 2006 6 2 53888 0.1085 0.3488 0.25057 2006 6 3 53889 0.1088 0.3481 0.25051 2006 6 4 53890 0.1092 0.3473 0.25033 2006 6 5 53891 0.1096 0.3465 0.25007 2006 6 6 53892 0.1099 0.3457 0.24979 2006 6 7 53893 0.1103 0.3449 0.24956 2006 6 8 53894 0.1106 0.3441 0.24944 2006 6 9 53895 0.1109 0.3432 0.24949 2006 6 10 53896 0.1112 0.3424 0.24974 2006 6 11 53897 0.1116 0.3415 0.25019 2006 6 12 53898 0.1119 0.3406 0.25079 2006 6 13 53899 0.1121 0.3398 0.25145 2006 6 14 53900 0.1124 0.3389 0.25204 2006 6 15 53901 0.1127 0.3380 0.25244 2006 6 16 53902 0.1130 0.3370 0.25259 2006 6 17 53903 0.1132 0.3361 0.25247 2006 6 18 53904 0.1135 0.3352 0.25215 2006 6 19 53905 0.1137 0.3342 0.25174 2006 6 20 53906 0.1139 0.3333 0.25140 2006 6 21 53907 0.1141 0.3323 0.25125 2006 6 22 53908 0.1143 0.3313 0.25136 2006 6 23 53909 0.1145 0.3303 0.25178 2006 6 24 53910 0.1147 0.3294 0.25245 2006 6 25 53911 0.1149 0.3283 0.25329 2006 6 26 53912 0.1150 0.3273 0.25420 2006 6 27 53913 0.1152 0.3263 0.25507 2006 6 28 53914 0.1153 0.3253 0.25583 2006 6 29 53915 0.1154 0.3242 0.25644 2006 6 30 53916 0.1155 0.3232 0.25688 2006 7 1 53917 0.1156 0.3221 0.25719 2006 7 2 53918 0.1156 0.3211 0.25739 2006 7 3 53919 0.1157 0.3200 0.25755 2006 7 4 53920 0.1157 0.3189 0.25772 2006 7 5 53921 0.1158 0.3178 0.25799 2006 7 6 53922 0.1158 0.3167 0.25839 2006 7 7 53923 0.1158 0.3156 0.25897 2006 7 8 53924 0.1157 0.3145 0.25974 2006 7 9 53925 0.1157 0.3134 0.26066 2006 7 10 53926 0.1156 0.3123 0.26167 2006 7 11 53927 0.1156 0.3112 0.26264 2006 7 12 53928 0.1155 0.3101 0.26343 2006 7 13 53929 0.1153 0.3090 0.26395 2006 7 14 53930 0.1152 0.3078 0.26417 2006 7 15 53931 0.1151 0.3067 0.26414 2006 7 16 53932 0.1149 0.3056 0.26399 2006 7 17 53933 0.1147 0.3044 0.26388 2006 7 18 53934 0.1145 0.3033 0.26395 2006 7 19 53935 0.1143 0.3021 0.26430 2006 7 20 53936 0.1140 0.3010 0.26494 2006 7 21 53937 0.1137 0.2998 0.26584 2006 7 22 53938 0.1134 0.2987 0.26692 2006 7 23 53939 0.1131 0.2976 0.26806 2006 7 24 53940 0.1128 0.2964 0.26916 2006 7 25 53941 0.1124 0.2953 0.27013 2006 7 26 53942 0.1121 0.2941 0.27090 2006 7 27 53943 0.1117 0.2930 0.27145 2006 7 28 53944 0.1112 0.2918 0.27179 2006 7 29 53945 0.1107 0.2907 0.27196 2006 7 30 53946 0.1102 0.2896 0.27202 2006 7 31 53947 0.1097 0.2885 0.27205 2006 8 1 53948 0.1092 0.2873 0.27211 2006 8 2 53949 0.1086 0.2862 0.27228 2006 8 3 53950 0.1080 0.2851 0.27261 2006 8 4 53951 0.1074 0.2840 0.27314 2006 8 5 53952 0.1067 0.2829 0.27385 2006 8 6 53953 0.1060 0.2818 0.27470 2006 8 7 53954 0.1053 0.2807 0.27558 2006 8 8 53955 0.1046 0.2796 0.27635 2006 8 9 53956 0.1038 0.2786 0.27687 2006 8 10 53957 0.1031 0.2775 0.27706 2006 8 11 53958 0.1023 0.2764 0.27693 2006 8 12 53959 0.1014 0.2754 0.27659 2006 8 13 53960 0.1006 0.2743 0.27622 2006 8 14 53961 0.0997 0.2733 0.27600 2006 8 15 53962 0.0988 0.2723 0.27607 2006 8 16 53963 0.0979 0.2713 0.27647 2006 8 17 53964 0.0969 0.2703 0.27716 2006 8 18 53965 0.0959 0.2693 0.27805 2006 8 19 53966 0.0949 0.2684 0.27901 2006 8 20 53967 0.0939 0.2674 0.27993 2006 8 21 53968 0.0928 0.2665 0.28072 2006 8 22 53969 0.0917 0.2656 0.28132 2006 8 23 53970 0.0906 0.2647 0.28171 2006 8 24 53971 0.0895 0.2638 0.28185 2006 8 25 53972 0.0883 0.2629 0.28179 2006 8 26 53973 0.0871 0.2620 0.28160 2006 8 27 53974 0.0859 0.2612 0.28139 2006 8 28 53975 0.0847 0.2604 0.28124 2006 8 29 53976 0.0834 0.2596 0.28119 2006 8 30 53977 0.0821 0.2588 0.28127 2006 8 31 53978 0.0808 0.2580 0.28152 2006 9 1 53979 0.0794 0.2573 0.28189 2006 9 2 53980 0.0780 0.2565 0.28234 2006 9 3 53981 0.0766 0.2558 0.28284 2006 9 4 53982 0.0752 0.2551 0.28330 2006 9 5 53983 0.0738 0.2545 0.28358 2006 9 6 53984 0.0723 0.2538 0.28354 2006 9 7 53985 0.0708 0.2532 0.28313 2006 9 8 53986 0.0693 0.2526 0.28237 2006 9 9 53987 0.0677 0.2520 0.28144 2006 9 10 53988 0.0662 0.2515 0.28058 2006 9 11 53989 0.0646 0.2509 0.27996 2006 9 12 53990 0.0630 0.2504 0.27963 2006 9 13 53991 0.0613 0.2500 0.27961 2006 9 14 53992 0.0597 0.2495 0.27985 2006 9 15 53993 0.0580 0.2491 0.28023 2006 9 16 53994 0.0563 0.2487 0.28068 2006 9 17 53995 0.0546 0.2483 0.28100 2006 9 18 53996 0.0528 0.2479 0.28115 2006 9 19 53997 0.0510 0.2476 0.28115 2006 9 20 53998 0.0493 0.2473 0.28102 2006 9 21 53999 0.0474 0.2471 0.28077 2006 9 22 54000 0.0456 0.2468 0.28041 2006 9 23 54001 0.0438 0.2466 0.28002 2006 9 24 54002 0.0419 0.2464 0.27967 2006 9 25 54003 0.0400 0.2463 0.27936 2006 9 26 54004 0.0381 0.2462 0.27910 2006 9 27 54005 0.0362 0.2461 0.27891 2006 9 28 54006 0.0343 0.2460 0.27881 2006 9 29 54007 0.0324 0.2460 0.27879 2006 9 30 54008 0.0304 0.2460 0.27883 2006 10 1 54009 0.0284 0.2460 0.27878 2006 10 2 54010 0.0264 0.2461 0.27855 2006 10 3 54011 0.0244 0.2462 0.27802 2006 10 4 54012 0.0224 0.2463 0.27708 2006 10 5 54013 0.0204 0.2464 0.27579 2006 10 6 54014 0.0184 0.2466 0.27429 2006 10 7 54015 0.0163 0.2468 0.27274 2006 10 8 54016 0.0143 0.2471 0.27128 2006 10 9 54017 0.0122 0.2474 0.27013 2006 10 10 54018 0.0101 0.2477 0.26932 2006 10 11 54019 0.0081 0.2480 0.26883 2006 10 12 54020 0.0060 0.2484 0.26855 2006 10 13 54021 0.0039 0.2488 0.26837 2006 10 14 54022 0.0018 0.2493 0.26820 2006 10 15 54023 -0.0003 0.2498 0.26791 2006 10 16 54024 -0.0024 0.2503 0.26744 2006 10 17 54025 -0.0045 0.2508 0.26679 2006 10 18 54026 -0.0067 0.2514 0.26598 2006 10 19 54027 -0.0088 0.2520 0.26507 2006 10 20 54028 -0.0109 0.2527 0.26409 2006 10 21 54029 -0.0130 0.2533 0.26311 2006 10 22 54030 -0.0151 0.2541 0.26223 2006 10 23 54031 -0.0172 0.2548 0.26142 2006 10 24 54032 -0.0193 0.2556 0.26074 2006 10 25 54033 -0.0214 0.2564 0.26021 2006 10 26 54034 -0.0235 0.2572 0.25985 2006 10 27 54035 -0.0256 0.2581 0.25963 2006 10 28 54036 -0.0277 0.2590 0.25946 2006 10 29 54037 -0.0298 0.2600 0.25918 2006 10 30 54038 -0.0319 0.2609 0.25871 2006 10 31 54039 -0.0340 0.2619 0.25794 2006 11 1 54040 -0.0360 0.2630 0.25685 2006 11 2 54041 -0.0381 0.2641 0.25552 2006 11 3 54042 -0.0401 0.2652 0.25409 2006 11 4 54043 -0.0422 0.2663 0.25277 2006 11 5 54044 -0.0442 0.2675 0.25173 2006 11 6 54045 -0.0462 0.2687 0.25111 2006 11 7 54046 -0.0482 0.2699 0.25093 2006 11 8 54047 -0.0502 0.2712 0.25104 2006 11 9 54048 -0.0521 0.2724 0.25129 2006 11 10 54049 -0.0541 0.2738 0.25149 2006 11 11 54050 -0.0560 0.2751 0.25156 2006 11 12 54051 -0.0579 0.2765 0.25155 2006 11 13 54052 -0.0598 0.2779 0.25142 2006 11 14 54053 -0.0617 0.2794 0.25113 2006 11 15 54054 -0.0635 0.2808 0.25067 2006 11 16 54055 -0.0654 0.2823 0.25018 2006 11 17 54056 -0.0672 0.2839 0.24974 2006 11 18 54057 -0.0690 0.2854 0.24942 2006 11 19 54058 -0.0707 0.2870 0.24919 2006 11 20 54059 -0.0725 0.2886 0.24908 2006 11 21 54060 -0.0742 0.2903 0.24910 2006 11 22 54061 -0.0759 0.2919 0.24925 2006 11 23 54062 -0.0776 0.2936 0.24951 2006 11 24 54063 -0.0792 0.2953 0.24977 2006 11 25 54064 -0.0808 0.2971 0.24994 2006 11 26 54065 -0.0824 0.2989 0.24994 2006 11 27 54066 -0.0840 0.3007 0.24973 2006 11 28 54067 -0.0855 0.3025 0.24930 2006 11 29 54068 -0.0870 0.3043 0.24869 2006 11 30 54069 -0.0884 0.3062 0.24791 2006 12 1 54070 -0.0899 0.3081 0.24710 2006 12 2 54071 -0.0913 0.3100 0.24645 2006 12 3 54072 -0.0926 0.3119 0.24609 2006 12 4 54073 -0.0940 0.3139 0.24603 2006 12 5 54074 -0.0953 0.3159 0.24618 2006 12 6 54075 -0.0965 0.3179 0.24640 2006 12 7 54076 -0.0977 0.3199 0.24660 2006 12 8 54077 -0.0989 0.3219 0.24669 2006 12 9 54078 -0.1001 0.3240 0.24663 2006 12 10 54079 -0.1012 0.3261 0.24644 2006 12 11 54080 -0.1023 0.3282 0.24603 2006 12 12 54081 -0.1033 0.3303 0.24536 2006 12 13 54082 -0.1043 0.3324 0.24447 2006 12 14 54083 -0.1053 0.3346 0.24345 2006 12 15 54084 -0.1062 0.3367 0.24238 2006 12 16 54085 -0.1071 0.3389 0.24136 2006 12 17 54086 -0.1080 0.3411 0.24051 2006 12 18 54087 -0.1088 0.3433 0.23986 2006 12 19 54088 -0.1095 0.3455 0.23938 2006 12 20 54089 -0.1102 0.3478 0.23907 2006 12 21 54090 -0.1109 0.3500 0.23881 2006 12 22 54091 -0.1116 0.3523 0.23848 2006 12 23 54092 -0.1122 0.3545 0.23801 2006 12 24 54093 -0.1127 0.3568 0.23734 2006 12 25 54094 -0.1132 0.3591 0.23640 2006 12 26 54095 -0.1137 0.3614 0.23521 2006 12 27 54096 -0.1141 0.3637 0.23387 2006 12 28 54097 -0.1145 0.3661 0.23254 2006 12 29 54098 -0.1148 0.3684 0.23139 2006 12 30 54099 -0.1151 0.3707 0.23057 2006 12 31 54100 -0.1153 0.3731 0.23014 2007 1 1 54101 -0.1155 0.3754 0.22998 2007 1 2 54102 -0.1157 0.3778 0.22998 2007 1 3 54103 -0.1158 0.3801 0.23000 2007 1 4 54104 -0.1159 0.3825 0.22995 2007 1 5 54105 -0.1159 0.3849 0.22977 2007 1 6 54106 -0.1159 0.3872 0.22945 2007 1 7 54107 -0.1158 0.3896 0.22902 2007 1 8 54108 -0.1157 0.3920 0.22850 2007 1 9 54109 -0.1155 0.3944 0.22795 2007 1 10 54110 -0.1153 0.3968 0.22735 2007 1 11 54111 -0.1150 0.3991 0.22675 2007 1 12 54112 -0.1147 0.4015 0.22634 2007 1 13 54113 -0.1144 0.4039 0.22620 2007 1 14 54114 -0.1140 0.4063 0.22624 2007 1 15 54115 -0.1136 0.4087 0.22648 2007 1 16 54116 -0.1131 0.4110 0.22686 2007 1 17 54117 -0.1126 0.4134 0.22737 2007 1 18 54118 -0.1120 0.4158 0.22786 2007 1 19 54119 -0.1114 0.4181 0.22816 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) 53728 -55.56 .74 -1.30 .34 53729 -56.06 .74 -1.24 .34 53730 -56.65 .74 -1.38 .34 53731 -57.04 .74 -1.58 .34 53732 -57.15 .74 -1.73 .34 53733 -57.14 .74 -1.84 .34 53734 -57.10 .74 -2.01 .34 53735 -56.93 .74 -2.15 .34 53736 -56.59 .74 -2.10 .34 53737 -56.25 .39 -1.86 .34 53738 -56.15 .31 -1.63 .11 53739 -56.31 .31 -1.57 .11 53740 -56.55 .31 -1.64 .11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53728 0.185 0.294 -0.286 0.340 53729 0.152 0.294 -0.294 0.340 53730 0.137 0.294 -0.325 0.340 53731 0.147 0.294 -0.349 0.340 53732 0.169 0.294 -0.374 0.340 53733 0.189 0.294 -0.378 0.340 53734 0.205 0.294 -0.381 0.340 53735 0.214 0.294 -0.363 0.340 53736 0.212 0.294 -0.343 0.340 53737 0.209 0.155 -0.341 0.340 53738 0.203 0.123 -0.347 0.110 53739 0.189 0.123 -0.335 0.110 53740 0.174 0.123 -0.322 0.110 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 **************************************************************************