********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 1 September 2005 Vol. XVIII No. 035 ______________________________________________________________________ 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 26 53608 .03830 .00003 .42761 .00006 -.603532 .000015 5 8 27 53609 .03947 .00003 .42674 .00006 -.603084 .000014 5 8 28 53610 .04063 .00003 .42586 .00006 -.602409 .000013 5 8 29 53611 .04150 .00003 .42535 .00006 -.601560 .000014 5 8 30 53612 .04187 .00003 .42502 .00005 -.600656 .000014 5 8 31 53613 .04195 .00003 .42477 .00005 -.599815 .000012 5 9 1 53614 .04209 .00003 .42475 .00005 -.599156 .000009 _______________________________________________________________________ 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 = .0530 + .0899 cos A + .0205 sin A - .1090 cos C + .0675 sin C y = .3465 + .0198 cos A - .0910 sin A + .0675 cos C + .1090 sin C UT1-UTC = -.6330 - .00041 (MJD - 53619) - (UT2-UT1) where A = 2*pi*(MJD-53614)/365.25 and C = 2*pi*(MJD-53614)/435. TAI-UTC(MJD 53615) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53614)**0.80 S t = 0.00025 (MJD-53614)**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 2 53615 0.0423 0.4248 -0.59878 2005 9 3 53616 0.0427 0.4249 -0.59868 2005 9 4 53617 0.0431 0.4249 -0.59881 2005 9 5 53618 0.0437 0.4248 -0.59909 2005 9 6 53619 0.0443 0.4248 -0.59947 2005 9 7 53620 0.0450 0.4247 -0.59984 2005 9 8 53621 0.0457 0.4246 -0.60013 2005 9 9 53622 0.0465 0.4245 -0.60021 2005 9 10 53623 0.0473 0.4243 -0.60005 2005 9 11 53624 0.0482 0.4242 -0.59971 2005 9 12 53625 0.0491 0.4240 -0.59930 2005 9 13 53626 0.0501 0.4239 -0.59892 2005 9 14 53627 0.0510 0.4237 -0.59870 2005 9 15 53628 0.0520 0.4235 -0.59878 2005 9 16 53629 0.0530 0.4233 -0.59921 2005 9 17 53630 0.0541 0.4231 -0.60002 2005 9 18 53631 0.0551 0.4228 -0.60111 2005 9 19 53632 0.0562 0.4226 -0.60232 2005 9 20 53633 0.0572 0.4224 -0.60347 2005 9 21 53634 0.0583 0.4221 -0.60442 2005 9 22 53635 0.0594 0.4218 -0.60509 2005 9 23 53636 0.0604 0.4215 -0.60549 2005 9 24 53637 0.0615 0.4212 -0.60569 2005 9 25 53638 0.0625 0.4209 -0.60579 2005 9 26 53639 0.0636 0.4206 -0.60589 2005 9 27 53640 0.0647 0.4203 -0.60605 2005 9 28 53641 0.0657 0.4200 -0.60634 2005 9 29 53642 0.0667 0.4196 -0.60679 2005 9 30 53643 0.0678 0.4193 -0.60742 2005 10 1 53644 0.0688 0.4189 -0.60823 2005 10 2 53645 0.0698 0.4185 -0.60919 2005 10 3 53646 0.0708 0.4181 -0.61024 2005 10 4 53647 0.0718 0.4177 -0.61130 2005 10 5 53648 0.0728 0.4173 -0.61230 2005 10 6 53649 0.0737 0.4169 -0.61316 2005 10 7 53650 0.0747 0.4165 -0.61381 2005 10 8 53651 0.0756 0.4160 -0.61427 2005 10 9 53652 0.0766 0.4156 -0.61455 2005 10 10 53653 0.0775 0.4151 -0.61477 2005 10 11 53654 0.0784 0.4146 -0.61505 2005 10 12 53655 0.0793 0.4142 -0.61551 2005 10 13 53656 0.0802 0.4137 -0.61626 2005 10 14 53657 0.0810 0.4132 -0.61734 2005 10 15 53658 0.0819 0.4127 -0.61868 2005 10 16 53659 0.0827 0.4121 -0.62018 2005 10 17 53660 0.0836 0.4116 -0.62165 2005 10 18 53661 0.0844 0.4111 -0.62295 2005 10 19 53662 0.0852 0.4105 -0.62398 2005 10 20 53663 0.0860 0.4100 -0.62471 2005 10 21 53664 0.0867 0.4094 -0.62518 2005 10 22 53665 0.0875 0.4088 -0.62547 2005 10 23 53666 0.0882 0.4083 -0.62570 2005 10 24 53667 0.0890 0.4077 -0.62594 2005 10 25 53668 0.0897 0.4071 -0.62627 2005 10 26 53669 0.0904 0.4065 -0.62675 2005 10 27 53670 0.0911 0.4059 -0.62741 2005 10 28 53671 0.0918 0.4052 -0.62824 2005 10 29 53672 0.0925 0.4046 -0.62923 2005 10 30 53673 0.0931 0.4040 -0.63034 2005 10 31 53674 0.0938 0.4033 -0.63149 2005 11 1 53675 0.0944 0.4027 -0.63262 2005 11 2 53676 0.0950 0.4020 -0.63362 2005 11 3 53677 0.0956 0.4013 -0.63445 2005 11 4 53678 0.0962 0.4006 -0.63507 2005 11 5 53679 0.0968 0.4000 -0.63550 2005 11 6 53680 0.0974 0.3993 -0.63584 2005 11 7 53681 0.0979 0.3986 -0.63619 2005 11 8 53682 0.0985 0.3979 -0.63669 2005 11 9 53683 0.0990 0.3972 -0.63743 2005 11 10 53684 0.0995 0.3964 -0.63845 2005 11 11 53685 0.1001 0.3957 -0.63973 2005 11 12 53686 0.1006 0.3950 -0.64116 2005 11 13 53687 0.1011 0.3942 -0.64262 2005 11 14 53688 0.1015 0.3935 -0.64397 2005 11 15 53689 0.1020 0.3927 -0.64508 2005 11 16 53690 0.1025 0.3920 -0.64591 2005 11 17 53691 0.1029 0.3912 -0.64646 2005 11 18 53692 0.1034 0.3904 -0.64680 2005 11 19 53693 0.1038 0.3897 -0.64701 2005 11 20 53694 0.1042 0.3889 -0.64718 2005 11 21 53695 0.1046 0.3881 -0.64741 2005 11 22 53696 0.1050 0.3873 -0.64776 2005 11 23 53697 0.1054 0.3865 -0.64826 2005 11 24 53698 0.1057 0.3857 -0.64892 2005 11 25 53699 0.1061 0.3849 -0.64972 2005 11 26 53700 0.1065 0.3841 -0.65064 2005 11 27 53701 0.1068 0.3833 -0.65161 2005 11 28 53702 0.1071 0.3824 -0.65256 2005 11 29 53703 0.1074 0.3816 -0.65342 2005 11 30 53704 0.1077 0.3808 -0.65410 2005 12 1 53705 0.1080 0.3799 -0.65457 2005 12 2 53706 0.1083 0.3791 -0.65481 2005 12 3 53707 0.1086 0.3783 -0.65491 2005 12 4 53708 0.1089 0.3774 -0.65498 2005 12 5 53709 0.1091 0.3766 -0.65516 2005 12 6 53710 0.1094 0.3757 -0.65555 2005 12 7 53711 0.1096 0.3749 -0.65623 2005 12 8 53712 0.1098 0.3740 -0.65716 2005 12 9 53713 0.1100 0.3731 -0.65826 2005 12 10 53714 0.1104 0.3723 -0.65941 2005 12 11 53715 0.1106 0.3714 -0.66046 2005 12 12 53716 0.1108 0.3706 -0.66131 2005 12 13 53717 0.1109 0.3697 -0.66191 2005 12 14 53718 0.1111 0.3688 -0.66225 2005 12 15 53719 0.1112 0.3679 -0.66238 2005 12 16 53720 0.1113 0.3671 -0.66237 2005 12 17 53721 0.1114 0.3662 -0.66231 2005 12 18 53722 0.1115 0.3653 -0.66229 2005 12 19 53723 0.1116 0.3645 -0.66238 2005 12 20 53724 0.1117 0.3636 -0.66263 2005 12 21 53725 0.1118 0.3627 -0.66305 2005 12 22 53726 0.1118 0.3619 -0.66363 2005 12 23 53727 0.1119 0.3610 -0.66434 2005 12 24 53728 0.1119 0.3601 -0.66513 2005 12 25 53729 0.1120 0.3592 -0.66592 2005 12 26 53730 0.1120 0.3584 -0.66666 2005 12 27 53731 0.1120 0.3575 -0.66727 2005 12 28 53732 0.1120 0.3567 -0.66770 2005 12 29 53733 0.1120 0.3558 -0.66793 2005 12 30 53734 0.1119 0.3549 -0.66799 2005 12 31 53735 0.1119 0.3541 -0.66799 2006 1 1 53736 0.1118 0.3532 0.33194 2006 1 2 53737 0.1118 0.3524 0.33166 2006 1 3 53738 0.1117 0.3515 0.33108 2006 1 4 53739 0.1116 0.3507 0.33022 2006 1 5 53740 0.1115 0.3499 0.32917 2006 1 6 53741 0.1114 0.3490 0.32807 2006 1 7 53742 0.1113 0.3482 0.32706 2006 1 8 53743 0.1112 0.3474 0.32625 2006 1 9 53744 0.1110 0.3465 0.32572 2006 1 10 53745 0.1109 0.3457 0.32545 2006 1 11 53746 0.1107 0.3449 0.32540 2006 1 12 53747 0.1105 0.3441 0.32549 2006 1 13 53748 0.1104 0.3433 0.32565 2006 1 14 53749 0.1102 0.3425 0.32578 2006 1 15 53750 0.1100 0.3417 0.32581 2006 1 16 53751 0.1097 0.3410 0.32569 2006 1 17 53752 0.1095 0.3402 0.32539 2006 1 18 53753 0.1093 0.3394 0.32492 2006 1 19 53754 0.1090 0.3387 0.32431 2006 1 20 53755 0.1088 0.3379 0.32361 2006 1 21 53756 0.1085 0.3372 0.32288 2006 1 22 53757 0.1082 0.3364 0.32220 2006 1 23 53758 0.1079 0.3357 0.32161 2006 1 24 53759 0.1076 0.3350 0.32118 2006 1 25 53760 0.1073 0.3343 0.32093 2006 1 26 53761 0.1070 0.3336 0.32084 2006 1 27 53762 0.1066 0.3329 0.32086 2006 1 28 53763 0.1063 0.3322 0.32083 2006 1 29 53764 0.1059 0.3315 0.32063 2006 1 30 53765 0.1056 0.3309 0.32012 2006 1 31 53766 0.1052 0.3302 0.31927 2006 2 1 53767 0.1048 0.3296 0.31815 2006 2 2 53768 0.1044 0.3290 0.31689 2006 2 3 53769 0.1040 0.3283 0.31568 2006 2 4 53770 0.1036 0.3277 0.31466 2006 2 5 53771 0.1032 0.3271 0.31393 2006 2 6 53772 0.1028 0.3265 0.31348 2006 2 7 53773 0.1023 0.3260 0.31328 2006 2 8 53774 0.1019 0.3254 0.31325 2006 2 9 53775 0.1014 0.3248 0.31328 2006 2 10 53776 0.1010 0.3243 0.31330 2006 2 11 53777 0.1005 0.3238 0.31323 2006 2 12 53778 0.1000 0.3232 0.31300 2006 2 13 53779 0.0996 0.3227 0.31260 2006 2 14 53780 0.0991 0.3222 0.31201 2006 2 15 53781 0.0986 0.3217 0.31126 2006 2 16 53782 0.0981 0.3213 0.31040 2006 2 17 53783 0.0976 0.3208 0.30951 2006 2 18 53784 0.0970 0.3203 0.30863 2006 2 19 53785 0.0965 0.3199 0.30785 2006 2 20 53786 0.0960 0.3195 0.30720 2006 2 21 53787 0.0955 0.3191 0.30673 2006 2 22 53788 0.0949 0.3187 0.30642 2006 2 23 53789 0.0944 0.3183 0.30624 2006 2 24 53790 0.0938 0.3179 0.30606 2006 2 25 53791 0.0933 0.3175 0.30577 2006 2 26 53792 0.0927 0.3172 0.30521 2006 2 27 53793 0.0921 0.3168 0.30431 2006 2 28 53794 0.0916 0.3165 0.30307 2006 3 1 53795 0.0910 0.3162 0.30160 2006 3 2 53796 0.0904 0.3159 0.30010 2006 3 3 53797 0.0899 0.3156 0.29875 2006 3 4 53798 0.0893 0.3153 0.29769 2006 3 5 53799 0.0887 0.3151 0.29697 2006 3 6 53800 0.0881 0.3148 0.29659 2006 3 7 53801 0.0875 0.3146 0.29644 2006 3 8 53802 0.0870 0.3143 0.29645 2006 3 9 53803 0.0864 0.3141 0.29649 2006 3 10 53804 0.0858 0.3139 0.29648 2006 3 11 53805 0.0852 0.3137 0.29635 2006 3 12 53806 0.0846 0.3135 0.29603 2006 3 13 53807 0.0840 0.3133 0.29550 2006 3 14 53808 0.0834 0.3131 0.29473 2006 3 15 53809 0.0828 0.3129 0.29377 2006 3 16 53810 0.0822 0.3128 0.29265 2006 3 17 53811 0.0817 0.3126 0.29144 2006 3 18 53812 0.0811 0.3125 0.29022 2006 3 19 53813 0.0805 0.3124 0.28906 2006 3 20 53814 0.0799 0.3122 0.28800 2006 3 21 53815 0.0793 0.3121 0.28707 2006 3 22 53816 0.0787 0.3120 0.28626 2006 3 23 53817 0.0782 0.3119 0.28552 2006 3 24 53818 0.0776 0.3119 0.28474 2006 3 25 53819 0.0770 0.3118 0.28380 2006 3 26 53820 0.0765 0.3117 0.28259 2006 3 27 53821 0.0759 0.3117 0.28107 2006 3 28 53822 0.0753 0.3116 0.27928 2006 3 29 53823 0.0748 0.3116 0.27737 2006 3 30 53824 0.0742 0.3116 0.27551 2006 3 31 53825 0.0737 0.3116 0.27385 2006 4 1 53826 0.0732 0.3116 0.27252 2006 4 2 53827 0.0726 0.3116 0.27156 2006 4 3 53828 0.0721 0.3116 0.27092 2006 4 4 53829 0.0716 0.3116 0.27049 2006 4 5 53830 0.0711 0.3116 0.27012 2006 4 6 53831 0.0706 0.3116 0.26972 2006 4 7 53832 0.0701 0.3117 0.26926 2006 4 8 53833 0.0696 0.3117 0.26874 2006 4 9 53834 0.0691 0.3118 0.26811 2006 4 10 53835 0.0686 0.3118 0.26734 2006 4 11 53836 0.0681 0.3119 0.26647 2006 4 12 53837 0.0676 0.3120 0.26558 2006 4 13 53838 0.0672 0.3120 0.26470 2006 4 14 53839 0.0667 0.3121 0.26387 2006 4 15 53840 0.0663 0.3122 0.26313 2006 4 16 53841 0.0659 0.3123 0.26254 2006 4 17 53842 0.0654 0.3124 0.26214 2006 4 18 53843 0.0650 0.3124 0.26187 2006 4 19 53844 0.0646 0.3125 0.26162 2006 4 20 53845 0.0642 0.3126 0.26128 2006 4 21 53846 0.0638 0.3127 0.26075 2006 4 22 53847 0.0634 0.3128 0.25994 2006 4 23 53848 0.0630 0.3129 0.25881 2006 4 24 53849 0.0627 0.3131 0.25742 2006 4 25 53850 0.0623 0.3132 0.25582 2006 4 26 53851 0.0620 0.3133 0.25418 2006 4 27 53852 0.0616 0.3134 0.25270 2006 4 28 53853 0.0613 0.3135 0.25152 2006 4 29 53854 0.0610 0.3136 0.25070 2006 4 30 53855 0.0606 0.3137 0.25016 2006 5 1 53856 0.0603 0.3138 0.24985 2006 5 2 53857 0.0601 0.3140 0.24967 2006 5 3 53858 0.0598 0.3141 0.24955 2006 5 4 53859 0.0595 0.3142 0.24934 2006 5 5 53860 0.0592 0.3143 0.24906 2006 5 6 53861 0.0590 0.3144 0.24870 2006 5 7 53862 0.0587 0.3145 0.24821 2006 5 8 53863 0.0585 0.3146 0.24758 2006 5 9 53864 0.0582 0.3147 0.24688 2006 5 10 53865 0.0580 0.3148 0.24620 2006 5 11 53866 0.0578 0.3149 0.24561 2006 5 12 53867 0.0576 0.3150 0.24513 2006 5 13 53868 0.0574 0.3151 0.24486 2006 5 14 53869 0.0572 0.3152 0.24484 2006 5 15 53870 0.0570 0.3153 0.24501 2006 5 16 53871 0.0569 0.3154 0.24525 2006 5 17 53872 0.0567 0.3155 0.24550 2006 5 18 53873 0.0566 0.3155 0.24566 2006 5 19 53874 0.0564 0.3156 0.24562 2006 5 20 53875 0.0563 0.3157 0.24529 2006 5 21 53876 0.0561 0.3158 0.24465 2006 5 22 53877 0.0560 0.3158 0.24381 2006 5 23 53878 0.0559 0.3159 0.24296 2006 5 24 53879 0.0558 0.3159 0.24211 2006 5 25 53880 0.0557 0.3160 0.24147 2006 5 26 53881 0.0556 0.3160 0.24117 2006 5 27 53882 0.0555 0.3160 0.24118 2006 5 28 53883 0.0554 0.3161 0.24145 2006 5 29 53884 0.0553 0.3161 0.24185 2006 5 30 53885 0.0553 0.3161 0.24230 2006 5 31 53886 0.0552 0.3161 0.24274 2006 6 1 53887 0.0551 0.3161 0.24307 2006 6 2 53888 0.0551 0.3162 0.24323 2006 6 3 53889 0.0550 0.3161 0.24324 2006 6 4 53890 0.0550 0.3161 0.24318 2006 6 5 53891 0.0549 0.3161 0.24301 2006 6 6 53892 0.0549 0.3161 0.24283 2006 6 7 53893 0.0549 0.3161 0.24274 2006 6 8 53894 0.0548 0.3160 0.24278 2006 6 9 53895 0.0548 0.3160 0.24301 2006 6 10 53896 0.0548 0.3160 0.24346 2006 6 11 53897 0.0548 0.3159 0.24408 2006 6 12 53898 0.0547 0.3159 0.24486 2006 6 13 53899 0.0547 0.3158 0.24576 2006 6 14 53900 0.0547 0.3157 0.24654 2006 6 15 53901 0.0547 0.3157 0.24713 2006 6 16 53902 0.0547 0.3156 0.24746 2006 6 17 53903 0.0546 0.3155 0.24750 2006 6 18 53904 0.0546 0.3154 0.24731 2006 6 19 53905 0.0546 0.3153 0.24705 2006 6 20 53906 0.0546 0.3152 0.24684 2006 6 21 53907 0.0546 0.3151 0.24682 2006 6 22 53908 0.0546 0.3150 0.24710 2006 6 23 53909 0.0546 0.3149 0.24765 2006 6 24 53910 0.0545 0.3147 0.24847 2006 6 25 53911 0.0545 0.3146 0.24946 2006 6 26 53912 0.0545 0.3145 0.25051 2006 6 27 53913 0.0545 0.3143 0.25153 2006 6 28 53914 0.0544 0.3142 0.25241 2006 6 29 53915 0.0544 0.3140 0.25313 2006 6 30 53916 0.0544 0.3139 0.25365 2006 7 1 53917 0.0543 0.3137 0.25399 2006 7 2 53918 0.0543 0.3136 0.25430 2006 7 3 53919 0.0542 0.3134 0.25456 2006 7 4 53920 0.0542 0.3132 0.25487 2006 7 5 53921 0.0541 0.3131 0.25531 2006 7 6 53922 0.0541 0.3129 0.25593 2006 7 7 53923 0.0540 0.3127 0.25677 2006 7 8 53924 0.0539 0.3126 0.25785 2006 7 9 53925 0.0539 0.3124 0.25913 2006 7 10 53926 0.0538 0.3122 0.26049 2006 7 11 53927 0.0537 0.3120 0.26178 2006 7 12 53928 0.0536 0.3118 0.26292 2006 7 13 53929 0.0535 0.3116 0.26380 2006 7 14 53930 0.0534 0.3114 0.26438 2006 7 15 53931 0.0533 0.3112 0.26468 2006 7 16 53932 0.0531 0.3110 0.26484 2006 7 17 53933 0.0530 0.3109 0.26507 2006 7 18 53934 0.0529 0.3107 0.26554 2006 7 19 53935 0.0527 0.3105 0.26634 2006 7 20 53936 0.0526 0.3103 0.26745 2006 7 21 53937 0.0524 0.3101 0.26881 2006 7 22 53938 0.0522 0.3099 0.27031 2006 7 23 53939 0.0520 0.3097 0.27186 2006 7 24 53940 0.0518 0.3095 0.27339 2006 7 25 53941 0.0516 0.3093 0.27480 2006 7 26 53942 0.0514 0.3091 0.27601 2006 7 27 53943 0.0512 0.3089 0.27700 2006 7 28 53944 0.0510 0.3088 0.27774 2006 7 29 53945 0.0507 0.3086 0.27825 2006 7 30 53946 0.0505 0.3084 0.27875 2006 7 31 53947 0.0502 0.3082 0.27923 2006 8 1 53948 0.0499 0.3081 0.27979 2006 8 2 53949 0.0496 0.3079 0.28048 2006 8 3 53950 0.0494 0.3077 0.28131 2006 8 4 53951 0.0490 0.3076 0.28229 2006 8 5 53952 0.0487 0.3074 0.28342 2006 8 6 53953 0.0484 0.3073 0.28450 2006 8 7 53954 0.0481 0.3071 0.28556 2006 8 8 53955 0.0477 0.3070 0.28652 2006 8 9 53956 0.0474 0.3068 0.28725 2006 8 10 53957 0.0470 0.3067 0.28768 2006 8 11 53958 0.0466 0.3066 0.28783 2006 8 12 53959 0.0462 0.3065 0.28780 2006 8 13 53960 0.0458 0.3064 0.28781 2006 8 14 53961 0.0454 0.3063 0.28795 2006 8 15 53962 0.0450 0.3062 0.28833 2006 8 16 53963 0.0446 0.3061 0.28905 2006 8 17 53964 0.0441 0.3060 0.29011 2006 8 18 53965 0.0437 0.3059 0.29133 2006 8 19 53966 0.0432 0.3059 0.29263 2006 8 20 53967 0.0427 0.3058 0.29392 2006 8 21 53968 0.0423 0.3058 0.29509 2006 8 22 53969 0.0418 0.3057 0.29608 2006 8 23 53970 0.0413 0.3057 0.29688 2006 8 24 53971 0.0407 0.3057 0.29749 2006 8 25 53972 0.0402 0.3057 0.29791 2006 8 26 53973 0.0397 0.3057 0.29816 2006 8 27 53974 0.0392 0.3057 0.29838 2006 8 28 53975 0.0386 0.3057 0.29860 2006 8 29 53976 0.0380 0.3057 0.29891 2006 8 30 53977 0.0375 0.3058 0.29938 2006 8 31 53978 0.0369 0.3058 0.30006 2006 9 1 53979 0.0363 0.3059 0.30095 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) 53599 -64.23 .18 -5.23 .14 53600 -63.81 .18 -5.02 .14 53601 -63.70 .18 -4.70 .14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53599 0.186 0.072 -0.038 0.140 53600 0.176 0.072 -0.039 0.140 53601 0.170 0.072 -0.070 0.140 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 **************************************************************************