********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 18 August 2005 Vol. XVIII No. 033 ______________________________________________________________________ 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 12 53594 .02009 .00003 .42696 .00003 -.602573 .000013 5 8 13 53595 .02162 .00003 .42756 .00003 -.602680 .000013 5 8 14 53596 .02284 .00003 .42816 .00004 -.602558 .000015 5 8 15 53597 .02388 .00002 .42872 .00003 -.602241 .000014 5 8 16 53598 .02495 .00002 .42902 .00003 -.601808 .000014 5 8 17 53599 .02614 .00002 .42912 .00003 -.601363 .000014 5 8 18 53600 .02714 .00002 .42925 .00003 -.601039 .000007 _______________________________________________________________________ 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 = .0569 + .0824 cos A + .0412 sin A - .1177 cos C + .0471 sin C y = .3467 + .0400 cos A - .0796 sin A + .0471 cos C + .1177 sin C UT1-UTC = -.6337 - .00040 (MJD - 53605) - (UT2-UT1) where A = 2*pi*(MJD-53600)/365.25 and C = 2*pi*(MJD-53600)/435. TAI-UTC(MJD 53601) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53600)**0.80 S t = 0.00025 (MJD-53600)**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 19 53601 0.0281 0.4295 -0.60100 2005 8 20 53602 0.0291 0.4297 -0.60133 2005 8 21 53603 0.0302 0.4299 -0.60197 2005 8 22 53604 0.0313 0.4301 -0.60277 2005 8 23 53605 0.0324 0.4303 -0.60352 2005 8 24 53606 0.0336 0.4305 -0.60411 2005 8 25 53607 0.0349 0.4307 -0.60443 2005 8 26 53608 0.0361 0.4308 -0.60445 2005 8 27 53609 0.0373 0.4310 -0.60426 2005 8 28 53610 0.0386 0.4311 -0.60393 2005 8 29 53611 0.0398 0.4312 -0.60355 2005 8 30 53612 0.0411 0.4313 -0.60323 2005 8 31 53613 0.0424 0.4313 -0.60302 2005 9 1 53614 0.0436 0.4314 -0.60295 2005 9 2 53615 0.0449 0.4314 -0.60305 2005 9 3 53616 0.0461 0.4314 -0.60335 2005 9 4 53617 0.0474 0.4314 -0.60386 2005 9 5 53618 0.0486 0.4314 -0.60452 2005 9 6 53619 0.0498 0.4314 -0.60526 2005 9 7 53620 0.0510 0.4314 -0.60600 2005 9 8 53621 0.0522 0.4313 -0.60664 2005 9 9 53622 0.0534 0.4312 -0.60711 2005 9 10 53623 0.0546 0.4311 -0.60739 2005 9 11 53624 0.0558 0.4310 -0.60746 2005 9 12 53625 0.0569 0.4309 -0.60740 2005 9 13 53626 0.0581 0.4308 -0.60731 2005 9 14 53627 0.0592 0.4306 -0.60732 2005 9 15 53628 0.0603 0.4304 -0.60758 2005 9 16 53629 0.0614 0.4303 -0.60815 2005 9 17 53630 0.0625 0.4301 -0.60905 2005 9 18 53631 0.0636 0.4299 -0.61017 2005 9 19 53632 0.0647 0.4296 -0.61135 2005 9 20 53633 0.0657 0.4294 -0.61243 2005 9 21 53634 0.0668 0.4291 -0.61328 2005 9 22 53635 0.0678 0.4289 -0.61384 2005 9 23 53636 0.0688 0.4286 -0.61412 2005 9 24 53637 0.0699 0.4283 -0.61420 2005 9 25 53638 0.0709 0.4280 -0.61416 2005 9 26 53639 0.0719 0.4277 -0.61411 2005 9 27 53640 0.0728 0.4274 -0.61411 2005 9 28 53641 0.0738 0.4270 -0.61424 2005 9 29 53642 0.0748 0.4267 -0.61455 2005 9 30 53643 0.0757 0.4263 -0.61504 2005 10 1 53644 0.0766 0.4259 -0.61574 2005 10 2 53645 0.0776 0.4255 -0.61659 2005 10 3 53646 0.0785 0.4251 -0.61754 2005 10 4 53647 0.0794 0.4247 -0.61851 2005 10 5 53648 0.0803 0.4243 -0.61942 2005 10 6 53649 0.0811 0.4238 -0.62018 2005 10 7 53650 0.0820 0.4234 -0.62075 2005 10 8 53651 0.0829 0.4229 -0.62112 2005 10 9 53652 0.0837 0.4224 -0.62135 2005 10 10 53653 0.0845 0.4220 -0.62152 2005 10 11 53654 0.0854 0.4215 -0.62175 2005 10 12 53655 0.0862 0.4209 -0.62219 2005 10 13 53656 0.0870 0.4204 -0.62292 2005 10 14 53657 0.0878 0.4199 -0.62398 2005 10 15 53658 0.0886 0.4193 -0.62531 2005 10 16 53659 0.0894 0.4188 -0.62680 2005 10 17 53660 0.0901 0.4182 -0.62826 2005 10 18 53661 0.0909 0.4176 -0.62956 2005 10 19 53662 0.0916 0.4170 -0.63059 2005 10 20 53663 0.0923 0.4164 -0.63132 2005 10 21 53664 0.0931 0.4158 -0.63180 2005 10 22 53665 0.0938 0.4152 -0.63212 2005 10 23 53666 0.0945 0.4146 -0.63236 2005 10 24 53667 0.0951 0.4139 -0.63263 2005 10 25 53668 0.0958 0.4133 -0.63299 2005 10 26 53669 0.0965 0.4126 -0.63351 2005 10 27 53670 0.0971 0.4119 -0.63420 2005 10 28 53671 0.0978 0.4113 -0.63507 2005 10 29 53672 0.0984 0.4106 -0.63610 2005 10 30 53673 0.0991 0.4099 -0.63722 2005 10 31 53674 0.0997 0.4092 -0.63839 2005 11 1 53675 0.1003 0.4084 -0.63950 2005 11 2 53676 0.1009 0.4077 -0.64048 2005 11 3 53677 0.1015 0.4070 -0.64126 2005 11 4 53678 0.1020 0.4062 -0.64181 2005 11 5 53679 0.1026 0.4055 -0.64216 2005 11 6 53680 0.1032 0.4047 -0.64241 2005 11 7 53681 0.1037 0.4039 -0.64267 2005 11 8 53682 0.1042 0.4032 -0.64306 2005 11 9 53683 0.1048 0.4024 -0.64368 2005 11 10 53684 0.1053 0.4016 -0.64457 2005 11 11 53685 0.1058 0.4008 -0.64571 2005 11 12 53686 0.1063 0.4000 -0.64700 2005 11 13 53687 0.1068 0.3991 -0.64832 2005 11 14 53688 0.1072 0.3983 -0.64951 2005 11 15 53689 0.1077 0.3975 -0.65047 2005 11 16 53690 0.1082 0.3966 -0.65115 2005 11 17 53691 0.1086 0.3958 -0.65158 2005 11 18 53692 0.1090 0.3949 -0.65180 2005 11 19 53693 0.1094 0.3941 -0.65193 2005 11 20 53694 0.1099 0.3932 -0.65204 2005 11 21 53695 0.1103 0.3923 -0.65222 2005 11 22 53696 0.1106 0.3914 -0.65254 2005 11 23 53697 0.1110 0.3906 -0.65303 2005 11 24 53698 0.1114 0.3897 -0.65370 2005 11 25 53699 0.1117 0.3888 -0.65453 2005 11 26 53700 0.1121 0.3879 -0.65548 2005 11 27 53701 0.1124 0.3870 -0.65650 2005 11 28 53702 0.1127 0.3860 -0.65750 2005 11 29 53703 0.1131 0.3851 -0.65842 2005 11 30 53704 0.1134 0.3842 -0.65918 2005 12 1 53705 0.1136 0.3833 -0.65972 2005 12 2 53706 0.1139 0.3824 -0.66006 2005 12 3 53707 0.1142 0.3814 -0.66025 2005 12 4 53708 0.1145 0.3805 -0.66042 2005 12 5 53709 0.1147 0.3795 -0.66069 2005 12 6 53710 0.1149 0.3786 -0.66118 2005 12 7 53711 0.1152 0.3777 -0.66194 2005 12 8 53712 0.1154 0.3767 -0.66295 2005 12 9 53713 0.1156 0.3758 -0.66411 2005 12 10 53714 0.1158 0.3748 -0.66530 2005 12 11 53715 0.1159 0.3739 -0.66638 2005 12 12 53716 0.1161 0.3729 -0.66726 2005 12 13 53717 0.1162 0.3720 -0.66787 2005 12 14 53718 0.1164 0.3710 -0.66822 2005 12 15 53719 0.1165 0.3700 -0.66835 2005 12 16 53720 0.1166 0.3691 -0.66833 2005 12 17 53721 0.1167 0.3681 -0.66827 2005 12 18 53722 0.1168 0.3672 -0.66824 2005 12 19 53723 0.1169 0.3662 -0.66832 2005 12 20 53724 0.1170 0.3652 -0.66856 2005 12 21 53725 0.1170 0.3643 -0.66896 2005 12 22 53726 0.1171 0.3633 -0.66952 2005 12 23 53727 0.1171 0.3624 -0.67021 2005 12 24 53728 0.1171 0.3614 -0.67097 2005 12 25 53729 0.1171 0.3605 -0.67174 2005 12 26 53730 0.1171 0.3595 -0.67244 2005 12 27 53731 0.1171 0.3586 -0.67302 2005 12 28 53732 0.1171 0.3576 -0.67342 2005 12 29 53733 0.1170 0.3567 -0.67361 2005 12 30 53734 0.1170 0.3558 -0.67363 2005 12 31 53735 0.1169 0.3548 -0.67359 2006 1 1 53736 0.1168 0.3539 0.32637 2006 1 2 53737 0.1168 0.3530 0.32613 2006 1 3 53738 0.1166 0.3520 0.32559 2006 1 4 53739 0.1165 0.3511 0.32477 2006 1 5 53740 0.1164 0.3502 0.32375 2006 1 6 53741 0.1163 0.3493 0.32268 2006 1 7 53742 0.1161 0.3484 0.32170 2006 1 8 53743 0.1159 0.3475 0.32092 2006 1 9 53744 0.1158 0.3466 0.32042 2006 1 10 53745 0.1156 0.3457 0.32017 2006 1 11 53746 0.1154 0.3448 0.32015 2006 1 12 53747 0.1152 0.3440 0.32028 2006 1 13 53748 0.1149 0.3431 0.32046 2006 1 14 53749 0.1147 0.3422 0.32062 2006 1 15 53750 0.1145 0.3414 0.32067 2006 1 16 53751 0.1142 0.3406 0.32058 2006 1 17 53752 0.1139 0.3397 0.32030 2006 1 18 53753 0.1136 0.3389 0.31985 2006 1 19 53754 0.1133 0.3381 0.31927 2006 1 20 53755 0.1130 0.3373 0.31859 2006 1 21 53756 0.1127 0.3365 0.31789 2006 1 22 53757 0.1124 0.3357 0.31722 2006 1 23 53758 0.1120 0.3349 0.31665 2006 1 24 53759 0.1117 0.3341 0.31623 2006 1 25 53760 0.1113 0.3333 0.31600 2006 1 26 53761 0.1109 0.3326 0.31593 2006 1 27 53762 0.1106 0.3318 0.31595 2006 1 28 53763 0.1102 0.3311 0.31594 2006 1 29 53764 0.1098 0.3304 0.31574 2006 1 30 53765 0.1093 0.3297 0.31524 2006 1 31 53766 0.1089 0.3289 0.31441 2006 2 1 53767 0.1085 0.3283 0.31330 2006 2 2 53768 0.1080 0.3276 0.31206 2006 2 3 53769 0.1076 0.3269 0.31086 2006 2 4 53770 0.1071 0.3262 0.30986 2006 2 5 53771 0.1066 0.3256 0.30914 2006 2 6 53772 0.1061 0.3249 0.30872 2006 2 7 53773 0.1057 0.3243 0.30854 2006 2 8 53774 0.1052 0.3237 0.30853 2006 2 9 53775 0.1046 0.3231 0.30859 2006 2 10 53776 0.1041 0.3225 0.30863 2006 2 11 53777 0.1036 0.3219 0.30859 2006 2 12 53778 0.1031 0.3214 0.30840 2006 2 13 53779 0.1025 0.3208 0.30803 2006 2 14 53780 0.1020 0.3203 0.30748 2006 2 15 53781 0.1014 0.3197 0.30679 2006 2 16 53782 0.1008 0.3192 0.30599 2006 2 17 53783 0.1003 0.3187 0.30517 2006 2 18 53784 0.0997 0.3182 0.30438 2006 2 19 53785 0.0991 0.3177 0.30370 2006 2 20 53786 0.0985 0.3173 0.30317 2006 2 21 53787 0.0979 0.3168 0.30283 2006 2 22 53788 0.0973 0.3164 0.30266 2006 2 23 53789 0.0967 0.3159 0.30260 2006 2 24 53790 0.0961 0.3155 0.30252 2006 2 25 53791 0.0955 0.3151 0.30225 2006 2 26 53792 0.0949 0.3147 0.30165 2006 2 27 53793 0.0943 0.3143 0.30061 2006 2 28 53794 0.0937 0.3140 0.29914 2006 3 1 53795 0.0931 0.3136 0.29737 2006 3 2 53796 0.0925 0.3133 0.29548 2006 3 3 53797 0.0918 0.3129 0.29371 2006 3 4 53798 0.0912 0.3126 0.29221 2006 3 5 53799 0.0906 0.3123 0.29107 2006 3 6 53800 0.0900 0.3120 0.29026 2006 3 7 53801 0.0893 0.3117 0.28972 2006 3 8 53802 0.0887 0.3114 0.28934 2006 3 9 53803 0.0881 0.3112 0.28901 2006 3 10 53804 0.0874 0.3109 0.28865 2006 3 11 53805 0.0868 0.3107 0.28821 2006 3 12 53806 0.0862 0.3105 0.28764 2006 3 13 53807 0.0855 0.3103 0.28695 2006 3 14 53808 0.0849 0.3101 0.28613 2006 3 15 53809 0.0843 0.3099 0.28524 2006 3 16 53810 0.0836 0.3097 0.28431 2006 3 17 53811 0.0830 0.3095 0.28340 2006 3 18 53812 0.0824 0.3094 0.28255 2006 3 19 53813 0.0817 0.3092 0.28181 2006 3 20 53814 0.0811 0.3091 0.28122 2006 3 21 53815 0.0805 0.3089 0.28076 2006 3 22 53816 0.0799 0.3088 0.28038 2006 3 23 53817 0.0792 0.3087 0.27999 2006 3 24 53818 0.0786 0.3086 0.27948 2006 3 25 53819 0.0780 0.3085 0.27872 2006 3 26 53820 0.0774 0.3085 0.27764 2006 3 27 53821 0.0768 0.3084 0.27623 2006 3 28 53822 0.0762 0.3083 0.27451 2006 3 29 53823 0.0756 0.3083 0.27264 2006 3 30 53824 0.0750 0.3082 0.27085 2006 3 31 53825 0.0744 0.3082 0.26928 2006 4 1 53826 0.0738 0.3082 0.26806 2006 4 2 53827 0.0733 0.3082 0.26714 2006 4 3 53828 0.0727 0.3082 0.26650 2006 4 4 53829 0.0721 0.3082 0.26604 2006 4 5 53830 0.0716 0.3082 0.26568 2006 4 6 53831 0.0710 0.3082 0.26529 2006 4 7 53832 0.0705 0.3082 0.26484 2006 4 8 53833 0.0699 0.3082 0.26431 2006 4 9 53834 0.0694 0.3083 0.26364 2006 4 10 53835 0.0689 0.3083 0.26279 2006 4 11 53836 0.0683 0.3083 0.26181 2006 4 12 53837 0.0678 0.3084 0.26079 2006 4 13 53838 0.0673 0.3084 0.25980 2006 4 14 53839 0.0668 0.3085 0.25887 2006 4 15 53840 0.0663 0.3086 0.25810 2006 4 16 53841 0.0659 0.3086 0.25756 2006 4 17 53842 0.0654 0.3087 0.25722 2006 4 18 53843 0.0649 0.3088 0.25699 2006 4 19 53844 0.0645 0.3089 0.25683 2006 4 20 53845 0.0640 0.3089 0.25667 2006 4 21 53846 0.0636 0.3090 0.25637 2006 4 22 53847 0.0631 0.3091 0.25581 2006 4 23 53848 0.0627 0.3092 0.25490 2006 4 24 53849 0.0623 0.3093 0.25369 2006 4 25 53850 0.0619 0.3094 0.25234 2006 4 26 53851 0.0615 0.3095 0.25087 2006 4 27 53852 0.0611 0.3096 0.24952 2006 4 28 53853 0.0607 0.3097 0.24849 2006 4 29 53854 0.0604 0.3098 0.24778 2006 4 30 53855 0.0600 0.3099 0.24739 2006 5 1 53856 0.0597 0.3100 0.24720 2006 5 2 53857 0.0593 0.3101 0.24713 2006 5 3 53858 0.0590 0.3102 0.24711 2006 5 4 53859 0.0587 0.3103 0.24701 2006 5 5 53860 0.0583 0.3104 0.24676 2006 5 6 53861 0.0580 0.3105 0.24635 2006 5 7 53862 0.0577 0.3106 0.24584 2006 5 8 53863 0.0575 0.3107 0.24519 2006 5 9 53864 0.0572 0.3108 0.24448 2006 5 10 53865 0.0569 0.3109 0.24380 2006 5 11 53866 0.0566 0.3110 0.24320 2006 5 12 53867 0.0564 0.3111 0.24277 2006 5 13 53868 0.0561 0.3112 0.24254 2006 5 14 53869 0.0559 0.3113 0.24249 2006 5 15 53870 0.0557 0.3114 0.24264 2006 5 16 53871 0.0555 0.3115 0.24297 2006 5 17 53872 0.0552 0.3116 0.24329 2006 5 18 53873 0.0550 0.3117 0.24351 2006 5 19 53874 0.0548 0.3118 0.24354 2006 5 20 53875 0.0546 0.3118 0.24327 2006 5 21 53876 0.0545 0.3119 0.24272 2006 5 22 53877 0.0543 0.3120 0.24198 2006 5 23 53878 0.0541 0.3121 0.24115 2006 5 24 53879 0.0540 0.3121 0.24041 2006 5 25 53880 0.0538 0.3122 0.23991 2006 5 26 53881 0.0537 0.3122 0.23970 2006 5 27 53882 0.0535 0.3123 0.23981 2006 5 28 53883 0.0534 0.3124 0.24017 2006 5 29 53884 0.0533 0.3124 0.24069 2006 5 30 53885 0.0531 0.3124 0.24124 2006 5 31 53886 0.0530 0.3125 0.24172 2006 6 1 53887 0.0529 0.3125 0.24208 2006 6 2 53888 0.0528 0.3126 0.24224 2006 6 3 53889 0.0527 0.3126 0.24222 2006 6 4 53890 0.0526 0.3126 0.24214 2006 6 5 53891 0.0525 0.3126 0.24199 2006 6 6 53892 0.0524 0.3126 0.24183 2006 6 7 53893 0.0523 0.3126 0.24177 2006 6 8 53894 0.0522 0.3126 0.24186 2006 6 9 53895 0.0521 0.3126 0.24217 2006 6 10 53896 0.0521 0.3126 0.24273 2006 6 11 53897 0.0520 0.3126 0.24353 2006 6 12 53898 0.0519 0.3126 0.24448 2006 6 13 53899 0.0518 0.3126 0.24547 2006 6 14 53900 0.0518 0.3126 0.24641 2006 6 15 53901 0.0517 0.3126 0.24719 2006 6 16 53902 0.0516 0.3125 0.24771 2006 6 17 53903 0.0516 0.3125 0.24793 2006 6 18 53904 0.0515 0.3125 0.24794 2006 6 19 53905 0.0514 0.3124 0.24790 2006 6 20 53906 0.0514 0.3124 0.24799 2006 6 21 53907 0.0513 0.3123 0.24834 2006 6 22 53908 0.0513 0.3123 0.24897 2006 6 23 53909 0.0512 0.3122 0.24990 2006 6 24 53910 0.0511 0.3122 0.25105 2006 6 25 53911 0.0511 0.3121 0.25236 2006 6 26 53912 0.0510 0.3121 0.25373 2006 6 27 53913 0.0509 0.3120 0.25506 2006 6 28 53914 0.0508 0.3119 0.25624 2006 6 29 53915 0.0508 0.3119 0.25723 2006 6 30 53916 0.0507 0.3118 0.25796 2006 7 1 53917 0.0506 0.3117 0.25846 2006 7 2 53918 0.0505 0.3116 0.25892 2006 7 3 53919 0.0504 0.3115 0.25933 2006 7 4 53920 0.0503 0.3115 0.25978 2006 7 5 53921 0.0502 0.3114 0.26033 2006 7 6 53922 0.0501 0.3113 0.26102 2006 7 7 53923 0.0500 0.3112 0.26185 2006 7 8 53924 0.0499 0.3111 0.26289 2006 7 9 53925 0.0498 0.3110 0.26394 2006 7 10 53926 0.0497 0.3109 0.26505 2006 7 11 53927 0.0496 0.3108 0.26617 2006 7 12 53928 0.0494 0.3108 0.26715 2006 7 13 53929 0.0493 0.3107 0.26791 2006 7 14 53930 0.0492 0.3106 0.26841 2006 7 15 53931 0.0490 0.3105 0.26869 2006 7 16 53932 0.0488 0.3104 0.26892 2006 7 17 53933 0.0487 0.3103 0.26918 2006 7 18 53934 0.0485 0.3102 0.26960 2006 7 19 53935 0.0483 0.3101 0.27031 2006 7 20 53936 0.0482 0.3100 0.27136 2006 7 21 53937 0.0480 0.3099 0.27266 2006 7 22 53938 0.0478 0.3099 0.27411 2006 7 23 53939 0.0476 0.3098 0.27565 2006 7 24 53940 0.0473 0.3097 0.27715 2006 7 25 53941 0.0471 0.3096 0.27853 2006 7 26 53942 0.0469 0.3095 0.27974 2006 7 27 53943 0.0467 0.3095 0.28077 2006 7 28 53944 0.0464 0.3094 0.28159 2006 7 29 53945 0.0462 0.3093 0.28222 2006 7 30 53946 0.0459 0.3093 0.28278 2006 7 31 53947 0.0456 0.3092 0.28330 2006 8 1 53948 0.0453 0.3092 0.28387 2006 8 2 53949 0.0450 0.3091 0.28458 2006 8 3 53950 0.0448 0.3091 0.28549 2006 8 4 53951 0.0444 0.3090 0.28663 2006 8 5 53952 0.0441 0.3090 0.28798 2006 8 6 53953 0.0438 0.3090 0.28949 2006 8 7 53954 0.0435 0.3089 0.29098 2006 8 8 53955 0.0431 0.3089 0.29231 2006 8 9 53956 0.0428 0.3089 0.29329 2006 8 10 53957 0.0424 0.3089 0.29384 2006 8 11 53958 0.0420 0.3089 0.29395 2006 8 12 53959 0.0417 0.3089 0.29379 2006 8 13 53960 0.0413 0.3089 0.29359 2006 8 14 53961 0.0409 0.3089 0.29349 2006 8 15 53962 0.0405 0.3089 0.29363 2006 8 16 53963 0.0401 0.3090 0.29408 2006 8 17 53964 0.0396 0.3090 0.29483 2006 8 18 53965 0.0392 0.3090 0.29577 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) 53581 -63.59 .12 -5.02 .34 53582 -63.72 .13 -5.18 .34 53583 -63.84 .13 -5.31 .34 53584 -63.84 .32 -5.48 .34 53585 -63.71 .43 -5.65 .34 53586 -63.58 .43 -5.61 .34 53587 -63.52 .43 -5.27 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53581 -0.004 0.048 -0.055 0.340 53582 0.012 0.052 -0.071 0.340 53583 0.032 0.052 -0.071 0.340 53584 0.055 0.127 -0.057 0.340 53585 0.085 0.171 -0.060 0.340 53586 0.102 0.171 -0.059 0.340 53587 0.104 0.171 -0.045 0.340 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 **************************************************************************