********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 September 2005 Vol. XVIII No. 036 ______________________________________________________________________ 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 2 53615 .04213 .00004 .42517 .00006 -.598649 .000024 5 9 3 53616 .04234 .00004 .42507 .00006 -.598515 .000022 5 9 4 53617 .04281 .00003 .42454 .00005 -.598627 .000020 5 9 5 53618 .04363 .00003 .42392 .00005 -.598880 .000018 5 9 6 53619 .04474 .00002 .42338 .00004 -.599257 .000015 5 9 7 53620 .04596 .00001 .42295 .00004 -.599706 .000010 5 9 8 53621 .04729 .00001 .42253 .00003 -.600136 .000005 _______________________________________________________________________ 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 = .0509 + .0939 cos A + .0072 sin A - .1047 cos C + .0784 sin C y = .3467 + .0070 cos A - .0955 sin A + .0784 cos C + .1047 sin C UT1-UTC = -.6350 - .00041 (MJD - 53626) - (UT2-UT1) where A = 2*pi*(MJD-53621)/365.25 and C = 2*pi*(MJD-53621)/435. TAI-UTC(MJD 53622) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53621)**0.80 S t = 0.00025 (MJD-53621)**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 9 53622 0.0486 0.4222 -0.60042 2005 9 10 53623 0.0499 0.4219 -0.60052 2005 9 11 53624 0.0511 0.4216 -0.60043 2005 9 12 53625 0.0522 0.4214 -0.60024 2005 9 13 53626 0.0533 0.4212 -0.60002 2005 9 14 53627 0.0544 0.4210 -0.59992 2005 9 15 53628 0.0554 0.4208 -0.60006 2005 9 16 53629 0.0564 0.4206 -0.60055 2005 9 17 53630 0.0574 0.4204 -0.60136 2005 9 18 53631 0.0584 0.4202 -0.60236 2005 9 19 53632 0.0593 0.4200 -0.60340 2005 9 20 53633 0.0603 0.4197 -0.60428 2005 9 21 53634 0.0612 0.4195 -0.60488 2005 9 22 53635 0.0621 0.4193 -0.60520 2005 9 23 53636 0.0630 0.4190 -0.60527 2005 9 24 53637 0.0639 0.4188 -0.60516 2005 9 25 53638 0.0648 0.4185 -0.60497 2005 9 26 53639 0.0657 0.4182 -0.60478 2005 9 27 53640 0.0666 0.4179 -0.60468 2005 9 28 53641 0.0675 0.4176 -0.60474 2005 9 29 53642 0.0683 0.4173 -0.60501 2005 9 30 53643 0.0692 0.4170 -0.60552 2005 10 1 53644 0.0700 0.4166 -0.60626 2005 10 2 53645 0.0708 0.4163 -0.60718 2005 10 3 53646 0.0717 0.4159 -0.60822 2005 10 4 53647 0.0725 0.4155 -0.60929 2005 10 5 53648 0.0733 0.4151 -0.61032 2005 10 6 53649 0.0741 0.4147 -0.61123 2005 10 7 53650 0.0749 0.4143 -0.61196 2005 10 8 53651 0.0756 0.4139 -0.61251 2005 10 9 53652 0.0764 0.4135 -0.61290 2005 10 10 53653 0.0772 0.4131 -0.61322 2005 10 11 53654 0.0779 0.4126 -0.61359 2005 10 12 53655 0.0787 0.4122 -0.61413 2005 10 13 53656 0.0794 0.4117 -0.61496 2005 10 14 53657 0.0801 0.4112 -0.61609 2005 10 15 53658 0.0808 0.4108 -0.61749 2005 10 16 53659 0.0815 0.4103 -0.61902 2005 10 17 53660 0.0822 0.4098 -0.62053 2005 10 18 53661 0.0829 0.4093 -0.62186 2005 10 19 53662 0.0836 0.4088 -0.62290 2005 10 20 53663 0.0843 0.4082 -0.62364 2005 10 21 53664 0.0849 0.4077 -0.62411 2005 10 22 53665 0.0856 0.4072 -0.62441 2005 10 23 53666 0.0862 0.4066 -0.62464 2005 10 24 53667 0.0869 0.4061 -0.62489 2005 10 25 53668 0.0875 0.4055 -0.62525 2005 10 26 53669 0.0881 0.4050 -0.62575 2005 10 27 53670 0.0887 0.4044 -0.62644 2005 10 28 53671 0.0893 0.4038 -0.62731 2005 10 29 53672 0.0899 0.4032 -0.62834 2005 10 30 53673 0.0905 0.4026 -0.62949 2005 10 31 53674 0.0911 0.4020 -0.63067 2005 11 1 53675 0.0916 0.4014 -0.63182 2005 11 2 53676 0.0922 0.4008 -0.63285 2005 11 3 53677 0.0927 0.4002 -0.63368 2005 11 4 53678 0.0933 0.3995 -0.63429 2005 11 5 53679 0.0938 0.3989 -0.63471 2005 11 6 53680 0.0943 0.3982 -0.63503 2005 11 7 53681 0.0948 0.3976 -0.63535 2005 11 8 53682 0.0953 0.3969 -0.63581 2005 11 9 53683 0.0958 0.3963 -0.63650 2005 11 10 53684 0.0963 0.3956 -0.63748 2005 11 11 53685 0.0968 0.3949 -0.63872 2005 11 12 53686 0.0972 0.3943 -0.64012 2005 11 13 53687 0.0977 0.3936 -0.64155 2005 11 14 53688 0.0982 0.3929 -0.64286 2005 11 15 53689 0.0986 0.3922 -0.64395 2005 11 16 53690 0.0990 0.3915 -0.64476 2005 11 17 53691 0.0994 0.3908 -0.64530 2005 11 18 53692 0.0999 0.3901 -0.64564 2005 11 19 53693 0.1003 0.3893 -0.64585 2005 11 20 53694 0.1007 0.3886 -0.64605 2005 11 21 53695 0.1011 0.3879 -0.64631 2005 11 22 53696 0.1014 0.3871 -0.64670 2005 11 23 53697 0.1018 0.3864 -0.64726 2005 11 24 53698 0.1022 0.3857 -0.64799 2005 11 25 53699 0.1025 0.3849 -0.64887 2005 11 26 53700 0.1029 0.3841 -0.64988 2005 11 27 53701 0.1032 0.3834 -0.65094 2005 11 28 53702 0.1035 0.3826 -0.65199 2005 11 29 53703 0.1038 0.3819 -0.65294 2005 11 30 53704 0.1042 0.3811 -0.65372 2005 12 1 53705 0.1045 0.3803 -0.65427 2005 12 2 53706 0.1047 0.3795 -0.65461 2005 12 3 53707 0.1050 0.3787 -0.65479 2005 12 4 53708 0.1053 0.3780 -0.65493 2005 12 5 53709 0.1056 0.3772 -0.65518 2005 12 6 53710 0.1058 0.3764 -0.65563 2005 12 7 53711 0.1061 0.3756 -0.65635 2005 12 8 53712 0.1063 0.3748 -0.65731 2005 12 9 53713 0.1065 0.3740 -0.65842 2005 12 10 53714 0.1067 0.3732 -0.65955 2005 12 11 53715 0.1069 0.3724 -0.66058 2005 12 12 53716 0.1071 0.3715 -0.66139 2005 12 13 53717 0.1073 0.3707 -0.66193 2005 12 14 53718 0.1075 0.3699 -0.66220 2005 12 15 53719 0.1077 0.3691 -0.66225 2005 12 16 53720 0.1078 0.3683 -0.66216 2005 12 17 53721 0.1080 0.3675 -0.66202 2005 12 18 53722 0.1081 0.3666 -0.66193 2005 12 19 53723 0.1082 0.3658 -0.66196 2005 12 20 53724 0.1083 0.3650 -0.66216 2005 12 21 53725 0.1084 0.3642 -0.66254 2005 12 22 53726 0.1085 0.3634 -0.66308 2005 12 23 53727 0.1086 0.3625 -0.66377 2005 12 24 53728 0.1087 0.3617 -0.66453 2005 12 25 53729 0.1088 0.3609 -0.66530 2005 12 26 53730 0.1088 0.3601 -0.66602 2005 12 27 53731 0.1088 0.3593 -0.66661 2005 12 28 53732 0.1089 0.3584 -0.66702 2005 12 29 53733 0.1089 0.3576 -0.66722 2005 12 30 53734 0.1089 0.3568 -0.66727 2005 12 31 53735 0.1089 0.3560 -0.66725 2006 1 1 53736 0.1089 0.3552 0.33269 2006 1 2 53737 0.1089 0.3544 0.33241 2006 1 3 53738 0.1088 0.3536 0.33185 2006 1 4 53739 0.1088 0.3528 0.33099 2006 1 5 53740 0.1087 0.3520 0.32993 2006 1 6 53741 0.1087 0.3512 0.32882 2006 1 7 53742 0.1086 0.3504 0.32780 2006 1 8 53743 0.1085 0.3496 0.32698 2006 1 9 53744 0.1084 0.3488 0.32643 2006 1 10 53745 0.1083 0.3480 0.32614 2006 1 11 53746 0.1082 0.3472 0.32607 2006 1 12 53747 0.1081 0.3464 0.32615 2006 1 13 53748 0.1079 0.3457 0.32628 2006 1 14 53749 0.1078 0.3449 0.32639 2006 1 15 53750 0.1076 0.3442 0.32640 2006 1 16 53751 0.1074 0.3434 0.32626 2006 1 17 53752 0.1072 0.3426 0.32594 2006 1 18 53753 0.1070 0.3419 0.32545 2006 1 19 53754 0.1068 0.3412 0.32483 2006 1 20 53755 0.1066 0.3404 0.32411 2006 1 21 53756 0.1064 0.3397 0.32337 2006 1 22 53757 0.1062 0.3390 0.32267 2006 1 23 53758 0.1059 0.3383 0.32207 2006 1 24 53759 0.1057 0.3376 0.32163 2006 1 25 53760 0.1054 0.3369 0.32136 2006 1 26 53761 0.1051 0.3362 0.32126 2006 1 27 53762 0.1048 0.3355 0.32126 2006 1 28 53763 0.1045 0.3349 0.32122 2006 1 29 53764 0.1042 0.3342 0.32099 2006 1 30 53765 0.1039 0.3336 0.32047 2006 1 31 53766 0.1036 0.3329 0.31960 2006 2 1 53767 0.1032 0.3323 0.31846 2006 2 2 53768 0.1029 0.3317 0.31719 2006 2 3 53769 0.1025 0.3311 0.31596 2006 2 4 53770 0.1022 0.3305 0.31493 2006 2 5 53771 0.1018 0.3299 0.31417 2006 2 6 53772 0.1014 0.3293 0.31371 2006 2 7 53773 0.1010 0.3287 0.31350 2006 2 8 53774 0.1006 0.3281 0.31345 2006 2 9 53775 0.1002 0.3276 0.31347 2006 2 10 53776 0.0998 0.3270 0.31348 2006 2 11 53777 0.0994 0.3265 0.31339 2006 2 12 53778 0.0990 0.3260 0.31316 2006 2 13 53779 0.0985 0.3255 0.31274 2006 2 14 53780 0.0981 0.3250 0.31214 2006 2 15 53781 0.0976 0.3245 0.31139 2006 2 16 53782 0.0972 0.3240 0.31053 2006 2 17 53783 0.0967 0.3235 0.30962 2006 2 18 53784 0.0962 0.3231 0.30874 2006 2 19 53785 0.0958 0.3226 0.30795 2006 2 20 53786 0.0953 0.3222 0.30730 2006 2 21 53787 0.0948 0.3218 0.30682 2006 2 22 53788 0.0943 0.3214 0.30651 2006 2 23 53789 0.0938 0.3210 0.30631 2006 2 24 53790 0.0933 0.3206 0.30612 2006 2 25 53791 0.0928 0.3202 0.30581 2006 2 26 53792 0.0923 0.3199 0.30524 2006 2 27 53793 0.0918 0.3195 0.30431 2006 2 28 53794 0.0913 0.3192 0.30303 2006 3 1 53795 0.0907 0.3189 0.30153 2006 3 2 53796 0.0902 0.3186 0.29997 2006 3 3 53797 0.0897 0.3183 0.29855 2006 3 4 53798 0.0891 0.3180 0.29740 2006 3 5 53799 0.0886 0.3177 0.29658 2006 3 6 53800 0.0881 0.3174 0.29605 2006 3 7 53801 0.0875 0.3172 0.29575 2006 3 8 53802 0.0870 0.3169 0.29556 2006 3 9 53803 0.0865 0.3167 0.29539 2006 3 10 53804 0.0859 0.3165 0.29516 2006 3 11 53805 0.0854 0.3163 0.29482 2006 3 12 53806 0.0848 0.3161 0.29433 2006 3 13 53807 0.0843 0.3159 0.29369 2006 3 14 53808 0.0837 0.3157 0.29292 2006 3 15 53809 0.0832 0.3156 0.29208 2006 3 16 53810 0.0827 0.3154 0.29122 2006 3 17 53811 0.0821 0.3153 0.29043 2006 3 18 53812 0.0816 0.3151 0.28976 2006 3 19 53813 0.0810 0.3150 0.28925 2006 3 20 53814 0.0805 0.3148 0.28893 2006 3 21 53815 0.0799 0.3147 0.28878 2006 3 22 53816 0.0794 0.3146 0.28872 2006 3 23 53817 0.0789 0.3145 0.28866 2006 3 24 53818 0.0783 0.3144 0.28847 2006 3 25 53819 0.0778 0.3143 0.28799 2006 3 26 53820 0.0773 0.3143 0.28710 2006 3 27 53821 0.0768 0.3142 0.28575 2006 3 28 53822 0.0762 0.3141 0.28401 2006 3 29 53823 0.0757 0.3141 0.28202 2006 3 30 53824 0.0752 0.3141 0.27998 2006 3 31 53825 0.0747 0.3140 0.27811 2006 4 1 53826 0.0742 0.3140 0.27652 2006 4 2 53827 0.0737 0.3140 0.27527 2006 4 3 53828 0.0732 0.3140 0.27431 2006 4 4 53829 0.0727 0.3140 0.27353 2006 4 5 53830 0.0722 0.3140 0.27283 2006 4 6 53831 0.0718 0.3140 0.27211 2006 4 7 53832 0.0713 0.3140 0.27132 2006 4 8 53833 0.0709 0.3141 0.27043 2006 4 9 53834 0.0704 0.3141 0.26943 2006 4 10 53835 0.0700 0.3142 0.26832 2006 4 11 53836 0.0695 0.3142 0.26708 2006 4 12 53837 0.0691 0.3143 0.26575 2006 4 13 53838 0.0687 0.3143 0.26438 2006 4 14 53839 0.0682 0.3144 0.26309 2006 4 15 53840 0.0678 0.3144 0.26197 2006 4 16 53841 0.0674 0.3145 0.26110 2006 4 17 53842 0.0670 0.3146 0.26048 2006 4 18 53843 0.0667 0.3147 0.26009 2006 4 19 53844 0.0663 0.3147 0.25978 2006 4 20 53845 0.0659 0.3148 0.25943 2006 4 21 53846 0.0656 0.3149 0.25902 2006 4 22 53847 0.0652 0.3150 0.25850 2006 4 23 53848 0.0649 0.3151 0.25770 2006 4 24 53849 0.0645 0.3152 0.25663 2006 4 25 53850 0.0642 0.3153 0.25539 2006 4 26 53851 0.0639 0.3154 0.25416 2006 4 27 53852 0.0636 0.3155 0.25307 2006 4 28 53853 0.0633 0.3156 0.25222 2006 4 29 53854 0.0630 0.3157 0.25165 2006 4 30 53855 0.0627 0.3158 0.25136 2006 5 1 53856 0.0625 0.3159 0.25129 2006 5 2 53857 0.0622 0.3160 0.25130 2006 5 3 53858 0.0619 0.3161 0.25122 2006 5 4 53859 0.0617 0.3162 0.25100 2006 5 5 53860 0.0615 0.3162 0.25057 2006 5 6 53861 0.0612 0.3163 0.24996 2006 5 7 53862 0.0610 0.3164 0.24918 2006 5 8 53863 0.0608 0.3165 0.24832 2006 5 9 53864 0.0606 0.3166 0.24736 2006 5 10 53865 0.0604 0.3167 0.24640 2006 5 11 53866 0.0602 0.3168 0.24554 2006 5 12 53867 0.0601 0.3169 0.24483 2006 5 13 53868 0.0599 0.3169 0.24433 2006 5 14 53869 0.0597 0.3170 0.24401 2006 5 15 53870 0.0596 0.3171 0.24388 2006 5 16 53871 0.0594 0.3171 0.24390 2006 5 17 53872 0.0593 0.3172 0.24400 2006 5 18 53873 0.0592 0.3172 0.24401 2006 5 19 53874 0.0591 0.3173 0.24388 2006 5 20 53875 0.0589 0.3173 0.24355 2006 5 21 53876 0.0588 0.3174 0.24299 2006 5 22 53877 0.0587 0.3174 0.24221 2006 5 23 53878 0.0587 0.3175 0.24136 2006 5 24 53879 0.0586 0.3175 0.24061 2006 5 25 53880 0.0585 0.3175 0.24011 2006 5 26 53881 0.0584 0.3175 0.23990 2006 5 27 53882 0.0583 0.3175 0.24002 2006 5 28 53883 0.0583 0.3175 0.24044 2006 5 29 53884 0.0582 0.3175 0.24102 2006 5 30 53885 0.0582 0.3175 0.24158 2006 5 31 53886 0.0581 0.3175 0.24207 2006 6 1 53887 0.0581 0.3175 0.24244 2006 6 2 53888 0.0581 0.3174 0.24267 2006 6 3 53889 0.0580 0.3174 0.24272 2006 6 4 53890 0.0580 0.3174 0.24260 2006 6 5 53891 0.0580 0.3173 0.24240 2006 6 6 53892 0.0579 0.3173 0.24223 2006 6 7 53893 0.0579 0.3172 0.24203 2006 6 8 53894 0.0579 0.3171 0.24193 2006 6 9 53895 0.0579 0.3170 0.24203 2006 6 10 53896 0.0579 0.3170 0.24233 2006 6 11 53897 0.0579 0.3169 0.24283 2006 6 12 53898 0.0578 0.3168 0.24346 2006 6 13 53899 0.0578 0.3167 0.24415 2006 6 14 53900 0.0578 0.3166 0.24482 2006 6 15 53901 0.0578 0.3164 0.24530 2006 6 16 53902 0.0578 0.3163 0.24550 2006 6 17 53903 0.0578 0.3162 0.24543 2006 6 18 53904 0.0578 0.3160 0.24522 2006 6 19 53905 0.0578 0.3159 0.24489 2006 6 20 53906 0.0578 0.3158 0.24464 2006 6 21 53907 0.0578 0.3156 0.24462 2006 6 22 53908 0.0577 0.3154 0.24489 2006 6 23 53909 0.0577 0.3153 0.24549 2006 6 24 53910 0.0577 0.3151 0.24636 2006 6 25 53911 0.0577 0.3149 0.24738 2006 6 26 53912 0.0577 0.3147 0.24847 2006 6 27 53913 0.0576 0.3145 0.24959 2006 6 28 53914 0.0576 0.3143 0.25055 2006 6 29 53915 0.0576 0.3141 0.25135 2006 6 30 53916 0.0575 0.3139 0.25200 2006 7 1 53917 0.0575 0.3137 0.25248 2006 7 2 53918 0.0574 0.3135 0.25282 2006 7 3 53919 0.0574 0.3133 0.25314 2006 7 4 53920 0.0573 0.3130 0.25346 2006 7 5 53921 0.0572 0.3128 0.25387 2006 7 6 53922 0.0572 0.3126 0.25444 2006 7 7 53923 0.0571 0.3123 0.25516 2006 7 8 53924 0.0570 0.3121 0.25608 2006 7 9 53925 0.0569 0.3118 0.25715 2006 7 10 53926 0.0568 0.3116 0.25831 2006 7 11 53927 0.0567 0.3113 0.25941 2006 7 12 53928 0.0566 0.3111 0.26030 2006 7 13 53929 0.0564 0.3108 0.26092 2006 7 14 53930 0.0563 0.3106 0.26118 2006 7 15 53931 0.0562 0.3103 0.26116 2006 7 16 53932 0.0560 0.3100 0.26108 2006 7 17 53933 0.0559 0.3098 0.26103 2006 7 18 53934 0.0557 0.3095 0.26118 2006 7 19 53935 0.0555 0.3093 0.26165 2006 7 20 53936 0.0553 0.3090 0.26245 2006 7 21 53937 0.0551 0.3087 0.26356 2006 7 22 53938 0.0549 0.3085 0.26488 2006 7 23 53939 0.0547 0.3082 0.26633 2006 7 24 53940 0.0545 0.3079 0.26775 2006 7 25 53941 0.0542 0.3077 0.26904 2006 7 26 53942 0.0540 0.3074 0.27019 2006 7 27 53943 0.0537 0.3072 0.27118 2006 7 28 53944 0.0534 0.3069 0.27201 2006 7 29 53945 0.0531 0.3067 0.27269 2006 7 30 53946 0.0528 0.3064 0.27327 2006 7 31 53947 0.0525 0.3062 0.27389 2006 8 1 53948 0.0522 0.3059 0.27462 2006 8 2 53949 0.0519 0.3057 0.27553 2006 8 3 53950 0.0515 0.3054 0.27661 2006 8 4 53951 0.0512 0.3052 0.27785 2006 8 5 53952 0.0508 0.3050 0.27920 2006 8 6 53953 0.0505 0.3048 0.28063 2006 8 7 53954 0.0501 0.3045 0.28203 2006 8 8 53955 0.0497 0.3043 0.28329 2006 8 9 53956 0.0493 0.3041 0.28423 2006 8 10 53957 0.0488 0.3039 0.28479 2006 8 11 53958 0.0484 0.3037 0.28492 2006 8 12 53959 0.0480 0.3036 0.28475 2006 8 13 53960 0.0475 0.3034 0.28460 2006 8 14 53961 0.0470 0.3032 0.28457 2006 8 15 53962 0.0465 0.3030 0.28483 2006 8 16 53963 0.0461 0.3029 0.28542 2006 8 17 53964 0.0456 0.3027 0.28629 2006 8 18 53965 0.0450 0.3026 0.28731 2006 8 19 53966 0.0445 0.3025 0.28844 2006 8 20 53967 0.0440 0.3024 0.28940 2006 8 21 53968 0.0434 0.3023 0.29025 2006 8 22 53969 0.0429 0.3022 0.29098 2006 8 23 53970 0.0423 0.3021 0.29156 2006 8 24 53971 0.0417 0.3020 0.29201 2006 8 25 53972 0.0411 0.3019 0.29235 2006 8 26 53973 0.0405 0.3019 0.29263 2006 8 27 53974 0.0399 0.3018 0.29295 2006 8 28 53975 0.0393 0.3018 0.29331 2006 8 29 53976 0.0387 0.3017 0.29373 2006 8 30 53977 0.0380 0.3017 0.29431 2006 8 31 53978 0.0374 0.3017 0.29510 2006 9 1 53979 0.0367 0.3017 0.29602 2006 9 2 53980 0.0361 0.3018 0.29702 2006 9 3 53981 0.0354 0.3018 0.29805 2006 9 4 53982 0.0347 0.3018 0.29897 2006 9 5 53983 0.0340 0.3019 0.29965 2006 9 6 53984 0.0333 0.3020 0.29998 2006 9 7 53985 0.0326 0.3021 0.29994 2006 9 8 53986 0.0319 0.3022 0.29956 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) 53602 -63.94 .20 -4.50 .34 53603 -64.33 .19 -4.60 .16 53604 -64.62 .19 -4.90 .16 53605 -64.86 .18 -5.05 .24 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53602 0.197 0.080 -0.089 0.340 53603 0.217 0.076 -0.038 0.160 53604 0.202 0.076 0.012 0.160 53605 0.163 0.072 0.020 0.240 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 **************************************************************************