********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 August 2005 Vol. XVIII No. 034 ______________________________________________________________________ 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 8 19 53601 .02854 .00005 .42885 .00009 -.600908 .000008 5 8 20 53602 .02996 .00003 .42870 .00007 -.601178 .000012 5 8 21 53603 .03139 .00004 .42869 .00007 -.601770 .000013 5 8 22 53604 .03280 .00003 .42865 .00006 -.602489 .000015 5 8 23 53605 .03421 .00003 .42849 .00006 -.603120 .000015 5 8 24 53606 .03562 .00003 .42832 .00005 -.603541 .000014 5 8 25 53607 .03712 .00003 .42812 .00004 -.603682 .000015 _______________________________________________________________________ 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 = .0572 + .0866 cos A + .0314 sin A - .1133 cos C + .0576 sin C y = .3466 + .0305 cos A - .0854 sin A + .0576 cos C + .1133 sin C UT1-UTC = -.6335 - .00041 (MJD - 53612) - (UT2-UT1) where A = 2*pi*(MJD-53607)/365.25 and C = 2*pi*(MJD-53607)/435. TAI-UTC(MJD 53608) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53607)**0.80 S t = 0.00025 (MJD-53607)**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 8 26 53608 0.0387 0.4280 -0.60353 2005 8 27 53609 0.0401 0.4279 -0.60310 2005 8 28 53610 0.0415 0.4278 -0.60244 2005 8 29 53611 0.0428 0.4278 -0.60164 2005 8 30 53612 0.0441 0.4278 -0.60081 2005 8 31 53613 0.0454 0.4278 -0.60007 2005 9 1 53614 0.0466 0.4278 -0.59955 2005 9 2 53615 0.0478 0.4279 -0.59928 2005 9 3 53616 0.0490 0.4279 -0.59926 2005 9 4 53617 0.0501 0.4279 -0.59948 2005 9 5 53618 0.0512 0.4279 -0.59988 2005 9 6 53619 0.0524 0.4279 -0.60039 2005 9 7 53620 0.0535 0.4279 -0.60094 2005 9 8 53621 0.0546 0.4278 -0.60145 2005 9 9 53622 0.0556 0.4278 -0.60188 2005 9 10 53623 0.0567 0.4277 -0.60217 2005 9 11 53624 0.0578 0.4277 -0.60230 2005 9 12 53625 0.0588 0.4276 -0.60231 2005 9 13 53626 0.0599 0.4275 -0.60230 2005 9 14 53627 0.0609 0.4273 -0.60243 2005 9 15 53628 0.0619 0.4272 -0.60281 2005 9 16 53629 0.0630 0.4271 -0.60354 2005 9 17 53630 0.0640 0.4269 -0.60461 2005 9 18 53631 0.0650 0.4267 -0.60590 2005 9 19 53632 0.0660 0.4265 -0.60725 2005 9 20 53633 0.0670 0.4263 -0.60847 2005 9 21 53634 0.0679 0.4261 -0.60945 2005 9 22 53635 0.0689 0.4258 -0.61011 2005 9 23 53636 0.0699 0.4256 -0.61049 2005 9 24 53637 0.0708 0.4253 -0.61064 2005 9 25 53638 0.0718 0.4250 -0.61067 2005 9 26 53639 0.0727 0.4247 -0.61067 2005 9 27 53640 0.0736 0.4244 -0.61072 2005 9 28 53641 0.0745 0.4241 -0.61088 2005 9 29 53642 0.0755 0.4237 -0.61120 2005 9 30 53643 0.0764 0.4234 -0.61171 2005 10 1 53644 0.0772 0.4230 -0.61241 2005 10 2 53645 0.0781 0.4226 -0.61328 2005 10 3 53646 0.0790 0.4222 -0.61425 2005 10 4 53647 0.0798 0.4218 -0.61525 2005 10 5 53648 0.0807 0.4214 -0.61619 2005 10 6 53649 0.0815 0.4210 -0.61700 2005 10 7 53650 0.0824 0.4205 -0.61762 2005 10 8 53651 0.0832 0.4201 -0.61804 2005 10 9 53652 0.0840 0.4196 -0.61831 2005 10 10 53653 0.0848 0.4192 -0.61852 2005 10 11 53654 0.0856 0.4187 -0.61879 2005 10 12 53655 0.0863 0.4182 -0.61925 2005 10 13 53656 0.0871 0.4177 -0.61999 2005 10 14 53657 0.0879 0.4171 -0.62105 2005 10 15 53658 0.0886 0.4166 -0.62237 2005 10 16 53659 0.0894 0.4161 -0.62383 2005 10 17 53660 0.0901 0.4155 -0.62526 2005 10 18 53661 0.0908 0.4149 -0.62651 2005 10 19 53662 0.0915 0.4144 -0.62749 2005 10 20 53663 0.0922 0.4138 -0.62818 2005 10 21 53664 0.0929 0.4132 -0.62862 2005 10 22 53665 0.0936 0.4126 -0.62890 2005 10 23 53666 0.0943 0.4120 -0.62911 2005 10 24 53667 0.0949 0.4113 -0.62935 2005 10 25 53668 0.0956 0.4107 -0.62969 2005 10 26 53669 0.0962 0.4101 -0.63019 2005 10 27 53670 0.0969 0.4094 -0.63087 2005 10 28 53671 0.0975 0.4088 -0.63174 2005 10 29 53672 0.0981 0.4081 -0.63278 2005 10 30 53673 0.0987 0.4074 -0.63393 2005 10 31 53674 0.0993 0.4067 -0.63512 2005 11 1 53675 0.0999 0.4060 -0.63629 2005 11 2 53676 0.1004 0.4053 -0.63733 2005 11 3 53677 0.1010 0.4046 -0.63819 2005 11 4 53678 0.1015 0.4039 -0.63883 2005 11 5 53679 0.1021 0.4032 -0.63929 2005 11 6 53680 0.1026 0.4024 -0.63964 2005 11 7 53681 0.1031 0.4017 -0.64000 2005 11 8 53682 0.1036 0.4009 -0.64049 2005 11 9 53683 0.1041 0.4002 -0.64122 2005 11 10 53684 0.1046 0.3994 -0.64221 2005 11 11 53685 0.1051 0.3986 -0.64345 2005 11 12 53686 0.1056 0.3978 -0.64483 2005 11 13 53687 0.1060 0.3971 -0.64622 2005 11 14 53688 0.1065 0.3963 -0.64749 2005 11 15 53689 0.1069 0.3954 -0.64851 2005 11 16 53690 0.1073 0.3946 -0.64924 2005 11 17 53691 0.1078 0.3938 -0.64969 2005 11 18 53692 0.1082 0.3930 -0.64993 2005 11 19 53693 0.1086 0.3922 -0.65004 2005 11 20 53694 0.1090 0.3913 -0.65012 2005 11 21 53695 0.1093 0.3905 -0.65026 2005 11 22 53696 0.1097 0.3896 -0.65052 2005 11 23 53697 0.1101 0.3888 -0.65093 2005 11 24 53698 0.1104 0.3879 -0.65152 2005 11 25 53699 0.1108 0.3871 -0.65226 2005 11 26 53700 0.1111 0.3862 -0.65312 2005 11 27 53701 0.1114 0.3853 -0.65406 2005 11 28 53702 0.1117 0.3844 -0.65499 2005 11 29 53703 0.1120 0.3836 -0.65585 2005 11 30 53704 0.1123 0.3827 -0.65655 2005 12 1 53705 0.1126 0.3818 -0.65705 2005 12 2 53706 0.1128 0.3809 -0.65735 2005 12 3 53707 0.1131 0.3800 -0.65752 2005 12 4 53708 0.1133 0.3791 -0.65766 2005 12 5 53709 0.1135 0.3782 -0.65792 2005 12 6 53710 0.1138 0.3773 -0.65841 2005 12 7 53711 0.1140 0.3764 -0.65916 2005 12 8 53712 0.1142 0.3755 -0.66017 2005 12 9 53713 0.1144 0.3745 -0.66134 2005 12 10 53714 0.1145 0.3736 -0.66254 2005 12 11 53715 0.1147 0.3727 -0.66364 2005 12 12 53716 0.1148 0.3718 -0.66453 2005 12 13 53717 0.1150 0.3709 -0.66516 2005 12 14 53718 0.1151 0.3699 -0.66553 2005 12 15 53719 0.1152 0.3690 -0.66568 2005 12 16 53720 0.1154 0.3681 -0.66568 2005 12 17 53721 0.1154 0.3672 -0.66564 2005 12 18 53722 0.1155 0.3662 -0.66563 2005 12 19 53723 0.1156 0.3653 -0.66573 2005 12 20 53724 0.1157 0.3644 -0.66599 2005 12 21 53725 0.1157 0.3635 -0.66641 2005 12 22 53726 0.1158 0.3625 -0.66698 2005 12 23 53727 0.1158 0.3616 -0.66769 2005 12 24 53728 0.1158 0.3607 -0.66846 2005 12 25 53729 0.1158 0.3598 -0.66924 2005 12 26 53730 0.1158 0.3589 -0.66996 2005 12 27 53731 0.1158 0.3579 -0.67056 2005 12 28 53732 0.1157 0.3570 -0.67097 2005 12 29 53733 0.1157 0.3561 -0.67117 2005 12 30 53734 0.1156 0.3552 -0.67121 2005 12 31 53735 0.1156 0.3543 -0.67119 2006 1 1 53736 0.1155 0.3534 0.32876 2006 1 2 53737 0.1154 0.3525 0.32849 2006 1 3 53738 0.1153 0.3516 0.32794 2006 1 4 53739 0.1152 0.3507 0.32710 2006 1 5 53740 0.1151 0.3499 0.32606 2006 1 6 53741 0.1149 0.3490 0.32497 2006 1 7 53742 0.1148 0.3481 0.32398 2006 1 8 53743 0.1146 0.3472 0.32319 2006 1 9 53744 0.1144 0.3464 0.32266 2006 1 10 53745 0.1143 0.3455 0.32241 2006 1 11 53746 0.1141 0.3447 0.32237 2006 1 12 53747 0.1139 0.3438 0.32249 2006 1 13 53748 0.1136 0.3430 0.32266 2006 1 14 53749 0.1134 0.3421 0.32281 2006 1 15 53750 0.1132 0.3413 0.32285 2006 1 16 53751 0.1129 0.3405 0.32275 2006 1 17 53752 0.1126 0.3397 0.32246 2006 1 18 53753 0.1124 0.3389 0.32201 2006 1 19 53754 0.1121 0.3381 0.32142 2006 1 20 53755 0.1118 0.3373 0.32074 2006 1 21 53756 0.1115 0.3365 0.32003 2006 1 22 53757 0.1111 0.3358 0.31936 2006 1 23 53758 0.1108 0.3350 0.31879 2006 1 24 53759 0.1105 0.3343 0.31837 2006 1 25 53760 0.1101 0.3335 0.31813 2006 1 26 53761 0.1097 0.3328 0.31806 2006 1 27 53762 0.1094 0.3321 0.31809 2006 1 28 53763 0.1090 0.3313 0.31807 2006 1 29 53764 0.1086 0.3306 0.31787 2006 1 30 53765 0.1082 0.3299 0.31738 2006 1 31 53766 0.1078 0.3293 0.31654 2006 2 1 53767 0.1073 0.3286 0.31542 2006 2 2 53768 0.1069 0.3279 0.31417 2006 2 3 53769 0.1064 0.3273 0.31296 2006 2 4 53770 0.1060 0.3266 0.31195 2006 2 5 53771 0.1055 0.3260 0.31122 2006 2 6 53772 0.1051 0.3254 0.31078 2006 2 7 53773 0.1046 0.3248 0.31058 2006 2 8 53774 0.1041 0.3242 0.31055 2006 2 9 53775 0.1036 0.3236 0.31058 2006 2 10 53776 0.1031 0.3230 0.31060 2006 2 11 53777 0.1026 0.3225 0.31053 2006 2 12 53778 0.1020 0.3219 0.31031 2006 2 13 53779 0.1015 0.3214 0.30991 2006 2 14 53780 0.1010 0.3209 0.30933 2006 2 15 53781 0.1004 0.3204 0.30860 2006 2 16 53782 0.0999 0.3199 0.30776 2006 2 17 53783 0.0993 0.3194 0.30688 2006 2 18 53784 0.0988 0.3189 0.30603 2006 2 19 53785 0.0982 0.3184 0.30527 2006 2 20 53786 0.0976 0.3180 0.30466 2006 2 21 53787 0.0970 0.3176 0.30423 2006 2 22 53788 0.0964 0.3171 0.30397 2006 2 23 53789 0.0958 0.3167 0.30384 2006 2 24 53790 0.0952 0.3163 0.30374 2006 2 25 53791 0.0946 0.3159 0.30352 2006 2 26 53792 0.0940 0.3156 0.30307 2006 2 27 53793 0.0934 0.3152 0.30228 2006 2 28 53794 0.0928 0.3149 0.30118 2006 3 1 53795 0.0922 0.3145 0.29986 2006 3 2 53796 0.0916 0.3142 0.29851 2006 3 3 53797 0.0909 0.3139 0.29729 2006 3 4 53798 0.0903 0.3136 0.29632 2006 3 5 53799 0.0897 0.3133 0.29561 2006 3 6 53800 0.0891 0.3130 0.29513 2006 3 7 53801 0.0885 0.3127 0.29476 2006 3 8 53802 0.0879 0.3125 0.29441 2006 3 9 53803 0.0873 0.3122 0.29396 2006 3 10 53804 0.0866 0.3120 0.29336 2006 3 11 53805 0.0860 0.3117 0.29257 2006 3 12 53806 0.0854 0.3115 0.29158 2006 3 13 53807 0.0848 0.3113 0.29041 2006 3 14 53808 0.0842 0.3111 0.28909 2006 3 15 53809 0.0835 0.3110 0.28770 2006 3 16 53810 0.0829 0.3108 0.28629 2006 3 17 53811 0.0823 0.3106 0.28494 2006 3 18 53812 0.0817 0.3105 0.28371 2006 3 19 53813 0.0811 0.3103 0.28265 2006 3 20 53814 0.0805 0.3102 0.28179 2006 3 21 53815 0.0799 0.3101 0.28114 2006 3 22 53816 0.0793 0.3100 0.28067 2006 3 23 53817 0.0786 0.3099 0.28030 2006 3 24 53818 0.0780 0.3098 0.27990 2006 3 25 53819 0.0775 0.3097 0.27936 2006 3 26 53820 0.0769 0.3097 0.27857 2006 3 27 53821 0.0763 0.3096 0.27748 2006 3 28 53822 0.0757 0.3096 0.27612 2006 3 29 53823 0.0751 0.3095 0.27464 2006 3 30 53824 0.0745 0.3095 0.27322 2006 3 31 53825 0.0739 0.3095 0.27198 2006 4 1 53826 0.0734 0.3095 0.27102 2006 4 2 53827 0.0728 0.3094 0.27036 2006 4 3 53828 0.0723 0.3094 0.26995 2006 4 4 53829 0.0717 0.3095 0.26968 2006 4 5 53830 0.0712 0.3095 0.26938 2006 4 6 53831 0.0706 0.3095 0.26896 2006 4 7 53832 0.0701 0.3095 0.26837 2006 4 8 53833 0.0696 0.3096 0.26759 2006 4 9 53834 0.0691 0.3096 0.26662 2006 4 10 53835 0.0685 0.3096 0.26554 2006 4 11 53836 0.0680 0.3097 0.26430 2006 4 12 53837 0.0675 0.3098 0.26301 2006 4 13 53838 0.0671 0.3098 0.26174 2006 4 14 53839 0.0666 0.3099 0.26058 2006 4 15 53840 0.0661 0.3100 0.25958 2006 4 16 53841 0.0656 0.3100 0.25875 2006 4 17 53842 0.0652 0.3101 0.25811 2006 4 18 53843 0.0647 0.3102 0.25765 2006 4 19 53844 0.0643 0.3103 0.25735 2006 4 20 53845 0.0639 0.3104 0.25704 2006 4 21 53846 0.0634 0.3105 0.25665 2006 4 22 53847 0.0630 0.3106 0.25609 2006 4 23 53848 0.0626 0.3107 0.25525 2006 4 24 53849 0.0622 0.3108 0.25410 2006 4 25 53850 0.0618 0.3109 0.25275 2006 4 26 53851 0.0615 0.3110 0.25139 2006 4 27 53852 0.0611 0.3111 0.25018 2006 4 28 53853 0.0607 0.3112 0.24923 2006 4 29 53854 0.0604 0.3113 0.24864 2006 4 30 53855 0.0600 0.3114 0.24840 2006 5 1 53856 0.0597 0.3115 0.24839 2006 5 2 53857 0.0594 0.3117 0.24843 2006 5 3 53858 0.0591 0.3118 0.24845 2006 5 4 53859 0.0587 0.3119 0.24840 2006 5 5 53860 0.0585 0.3120 0.24821 2006 5 6 53861 0.0582 0.3121 0.24785 2006 5 7 53862 0.0579 0.3122 0.24728 2006 5 8 53863 0.0576 0.3123 0.24660 2006 5 9 53864 0.0574 0.3124 0.24589 2006 5 10 53865 0.0571 0.3125 0.24511 2006 5 11 53866 0.0569 0.3126 0.24437 2006 5 12 53867 0.0566 0.3127 0.24381 2006 5 13 53868 0.0564 0.3128 0.24342 2006 5 14 53869 0.0562 0.3129 0.24325 2006 5 15 53870 0.0560 0.3130 0.24325 2006 5 16 53871 0.0558 0.3131 0.24338 2006 5 17 53872 0.0556 0.3132 0.24358 2006 5 18 53873 0.0554 0.3133 0.24370 2006 5 19 53874 0.0552 0.3134 0.24359 2006 5 20 53875 0.0551 0.3134 0.24322 2006 5 21 53876 0.0549 0.3135 0.24264 2006 5 22 53877 0.0547 0.3136 0.24183 2006 5 23 53878 0.0546 0.3136 0.24097 2006 5 24 53879 0.0545 0.3137 0.24023 2006 5 25 53880 0.0543 0.3138 0.23972 2006 5 26 53881 0.0542 0.3138 0.23955 2006 5 27 53882 0.0541 0.3139 0.23971 2006 5 28 53883 0.0540 0.3139 0.24010 2006 5 29 53884 0.0539 0.3140 0.24066 2006 5 30 53885 0.0538 0.3140 0.24132 2006 5 31 53886 0.0537 0.3140 0.24188 2006 6 1 53887 0.0536 0.3141 0.24231 2006 6 2 53888 0.0535 0.3141 0.24261 2006 6 3 53889 0.0534 0.3141 0.24272 2006 6 4 53890 0.0533 0.3141 0.24269 2006 6 5 53891 0.0533 0.3141 0.24258 2006 6 6 53892 0.0532 0.3141 0.24244 2006 6 7 53893 0.0531 0.3141 0.24235 2006 6 8 53894 0.0531 0.3141 0.24239 2006 6 9 53895 0.0530 0.3141 0.24258 2006 6 10 53896 0.0530 0.3141 0.24298 2006 6 11 53897 0.0529 0.3141 0.24357 2006 6 12 53898 0.0529 0.3140 0.24432 2006 6 13 53899 0.0528 0.3140 0.24511 2006 6 14 53900 0.0528 0.3140 0.24581 2006 6 15 53901 0.0527 0.3139 0.24632 2006 6 16 53902 0.0527 0.3139 0.24652 2006 6 17 53903 0.0526 0.3138 0.24642 2006 6 18 53904 0.0526 0.3138 0.24619 2006 6 19 53905 0.0526 0.3137 0.24588 2006 6 20 53906 0.0525 0.3136 0.24565 2006 6 21 53907 0.0525 0.3136 0.24567 2006 6 22 53908 0.0524 0.3135 0.24600 2006 6 23 53909 0.0524 0.3134 0.24667 2006 6 24 53910 0.0524 0.3133 0.24765 2006 6 25 53911 0.0523 0.3132 0.24884 2006 6 26 53912 0.0523 0.3132 0.25010 2006 6 27 53913 0.0522 0.3131 0.25132 2006 6 28 53914 0.0522 0.3130 0.25244 2006 6 29 53915 0.0521 0.3129 0.25343 2006 6 30 53916 0.0521 0.3128 0.25426 2006 7 1 53917 0.0520 0.3127 0.25492 2006 7 2 53918 0.0519 0.3126 0.25546 2006 7 3 53919 0.0519 0.3124 0.25601 2006 7 4 53920 0.0518 0.3123 0.25663 2006 7 5 53921 0.0517 0.3122 0.25740 2006 7 6 53922 0.0517 0.3121 0.25833 2006 7 7 53923 0.0516 0.3120 0.25943 2006 7 8 53924 0.0515 0.3118 0.26068 2006 7 9 53925 0.0514 0.3117 0.26208 2006 7 10 53926 0.0513 0.3116 0.26354 2006 7 11 53927 0.0512 0.3115 0.26495 2006 7 12 53928 0.0511 0.3113 0.26615 2006 7 13 53929 0.0510 0.3112 0.26703 2006 7 14 53930 0.0508 0.3111 0.26751 2006 7 15 53931 0.0507 0.3110 0.26765 2006 7 16 53932 0.0506 0.3108 0.26772 2006 7 17 53933 0.0504 0.3107 0.26782 2006 7 18 53934 0.0503 0.3106 0.26811 2006 7 19 53935 0.0501 0.3104 0.26869 2006 7 20 53936 0.0499 0.3103 0.26956 2006 7 21 53937 0.0498 0.3102 0.27065 2006 7 22 53938 0.0496 0.3101 0.27194 2006 7 23 53939 0.0494 0.3099 0.27315 2006 7 24 53940 0.0492 0.3098 0.27433 2006 7 25 53941 0.0490 0.3097 0.27544 2006 7 26 53942 0.0488 0.3096 0.27644 2006 7 27 53943 0.0485 0.3094 0.27731 2006 7 28 53944 0.0483 0.3093 0.27805 2006 7 29 53945 0.0481 0.3092 0.27871 2006 7 30 53946 0.0478 0.3091 0.27937 2006 7 31 53947 0.0475 0.3090 0.28002 2006 8 1 53948 0.0473 0.3089 0.28070 2006 8 2 53949 0.0470 0.3088 0.28152 2006 8 3 53950 0.0467 0.3087 0.28254 2006 8 4 53951 0.0464 0.3086 0.28371 2006 8 5 53952 0.0461 0.3086 0.28502 2006 8 6 53953 0.0458 0.3085 0.28643 2006 8 7 53954 0.0455 0.3084 0.28781 2006 8 8 53955 0.0451 0.3083 0.28903 2006 8 9 53956 0.0448 0.3083 0.28997 2006 8 10 53957 0.0444 0.3082 0.29057 2006 8 11 53958 0.0440 0.3082 0.29080 2006 8 12 53959 0.0437 0.3081 0.29074 2006 8 13 53960 0.0433 0.3081 0.29064 2006 8 14 53961 0.0429 0.3081 0.29066 2006 8 15 53962 0.0425 0.3080 0.29093 2006 8 16 53963 0.0421 0.3080 0.29153 2006 8 17 53964 0.0416 0.3080 0.29248 2006 8 18 53965 0.0412 0.3080 0.29367 2006 8 19 53966 0.0408 0.3080 0.29502 2006 8 20 53967 0.0403 0.3080 0.29640 2006 8 21 53968 0.0399 0.3081 0.29769 2006 8 22 53969 0.0394 0.3081 0.29878 2006 8 23 53970 0.0389 0.3081 0.29962 2006 8 24 53971 0.0384 0.3082 0.30019 2006 8 25 53972 0.0379 0.3082 0.30049 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) 53588 -63.42 .53 -4.81 .34 53589 -63.42 .42 -4.49 .10 53590 -63.41 .42 -4.42 .10 53591 -63.36 .11 -4.45 .12 53592 -63.37 .19 -4.48 .14 53593 -63.59 .19 -4.60 .14 53594 -64.08 .19 -4.87 .14 53595 -64.66 .24 -5.20 .15 53596 -65.03 .21 -5.38 .14 53597 -65.06 .21 -5.39 .14 53598 -64.77 .74 -5.32 .13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53588 0.132 0.211 -0.030 0.340 53589 0.122 0.167 -0.021 0.100 53590 0.106 0.167 -0.038 0.100 53591 0.097 0.044 -0.038 0.120 53592 0.084 0.076 -0.023 0.140 53593 0.073 0.076 -0.042 0.140 53594 0.071 0.076 -0.079 0.140 53595 0.081 0.095 -0.109 0.150 53596 0.103 0.084 -0.095 0.140 53597 0.125 0.084 -0.079 0.140 53598 0.149 0.294 -0.054 0.130 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 **************************************************************************