********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 August 2005 Vol. XVIII No. 032 ______________________________________________________________________ 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 5 53587 .00486 .00004 .42204 .00003 -.601279 .000008 5 8 6 53588 .00666 .00004 .42234 .00003 -.600976 .000009 5 8 7 53589 .00868 .00004 .42270 .00003 -.600905 .000009 5 8 8 53590 .01105 .00003 .42322 .00003 -.601073 .000010 5 8 9 53591 .01377 .00003 .42398 .00002 -.601419 .000010 5 8 10 53592 .01625 .00003 .42501 .00002 -.601855 .000009 5 8 11 53593 .01841 .00003 .42608 .00002 -.602211 .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 = .0585 + .0735 cos A + .0498 sin A - .1209 cos C + .0367 sin C y = .3469 + .0483 cos A - .0725 sin A + .0367 cos C + .1209 sin C UT1-UTC = -.6288 - .00040 (MJD - 53598) - (UT2-UT1) where A = 2*pi*(MJD-53593)/365.25 and C = 2*pi*(MJD-53593)/435. TAI-UTC(MJD 53594) = 32.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53593)**0.80 S t = 0.00025 (MJD-53593)**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 12 53594 0.0205 0.4271 -0.60241 2005 8 13 53595 0.0224 0.4280 -0.60244 2005 8 14 53596 0.0243 0.4288 -0.60229 2005 8 15 53597 0.0260 0.4295 -0.60198 2005 8 16 53598 0.0277 0.4301 -0.60155 2005 8 17 53599 0.0293 0.4307 -0.60113 2005 8 18 53600 0.0309 0.4312 -0.60090 2005 8 19 53601 0.0324 0.4316 -0.60097 2005 8 20 53602 0.0338 0.4320 -0.60145 2005 8 21 53603 0.0352 0.4323 -0.60223 2005 8 22 53604 0.0366 0.4326 -0.60312 2005 8 23 53605 0.0379 0.4328 -0.60399 2005 8 24 53606 0.0392 0.4330 -0.60469 2005 8 25 53607 0.0405 0.4332 -0.60514 2005 8 26 53608 0.0417 0.4333 -0.60531 2005 8 27 53609 0.0429 0.4334 -0.60524 2005 8 28 53610 0.0441 0.4335 -0.60498 2005 8 29 53611 0.0453 0.4336 -0.60461 2005 8 30 53612 0.0465 0.4336 -0.60421 2005 8 31 53613 0.0476 0.4336 -0.60386 2005 9 1 53614 0.0487 0.4336 -0.60364 2005 9 2 53615 0.0498 0.4336 -0.60360 2005 9 3 53616 0.0509 0.4336 -0.60374 2005 9 4 53617 0.0520 0.4335 -0.60407 2005 9 5 53618 0.0531 0.4335 -0.60453 2005 9 6 53619 0.0542 0.4334 -0.60506 2005 9 7 53620 0.0552 0.4333 -0.60557 2005 9 8 53621 0.0563 0.4332 -0.60600 2005 9 9 53622 0.0573 0.4330 -0.60629 2005 9 10 53623 0.0584 0.4329 -0.60640 2005 9 11 53624 0.0594 0.4327 -0.60633 2005 9 12 53625 0.0604 0.4326 -0.60616 2005 9 13 53626 0.0614 0.4324 -0.60597 2005 9 14 53627 0.0624 0.4322 -0.60590 2005 9 15 53628 0.0634 0.4320 -0.60608 2005 9 16 53629 0.0644 0.4318 -0.60661 2005 9 17 53630 0.0654 0.4315 -0.60746 2005 9 18 53631 0.0664 0.4313 -0.60855 2005 9 19 53632 0.0674 0.4311 -0.60972 2005 9 20 53633 0.0683 0.4308 -0.61079 2005 9 21 53634 0.0693 0.4305 -0.61163 2005 9 22 53635 0.0703 0.4302 -0.61217 2005 9 23 53636 0.0712 0.4299 -0.61243 2005 9 24 53637 0.0721 0.4296 -0.61247 2005 9 25 53638 0.0731 0.4293 -0.61240 2005 9 26 53639 0.0740 0.4289 -0.61229 2005 9 27 53640 0.0749 0.4286 -0.61223 2005 9 28 53641 0.0758 0.4282 -0.61231 2005 9 29 53642 0.0767 0.4279 -0.61256 2005 9 30 53643 0.0776 0.4275 -0.61303 2005 10 1 53644 0.0785 0.4271 -0.61369 2005 10 2 53645 0.0794 0.4267 -0.61453 2005 10 3 53646 0.0803 0.4263 -0.61547 2005 10 4 53647 0.0812 0.4258 -0.61645 2005 10 5 53648 0.0820 0.4254 -0.61738 2005 10 6 53649 0.0829 0.4249 -0.61817 2005 10 7 53650 0.0837 0.4245 -0.61879 2005 10 8 53651 0.0846 0.4240 -0.61921 2005 10 9 53652 0.0854 0.4235 -0.61948 2005 10 10 53653 0.0862 0.4230 -0.61969 2005 10 11 53654 0.0870 0.4225 -0.61997 2005 10 12 53655 0.0878 0.4220 -0.62045 2005 10 13 53656 0.0886 0.4214 -0.62121 2005 10 14 53657 0.0894 0.4209 -0.62230 2005 10 15 53658 0.0902 0.4203 -0.62365 2005 10 16 53659 0.0910 0.4198 -0.62514 2005 10 17 53660 0.0917 0.4192 -0.62662 2005 10 18 53661 0.0925 0.4186 -0.62791 2005 10 19 53662 0.0932 0.4180 -0.62892 2005 10 20 53663 0.0940 0.4174 -0.62962 2005 10 21 53664 0.0947 0.4168 -0.63006 2005 10 22 53665 0.0954 0.4161 -0.63031 2005 10 23 53666 0.0961 0.4155 -0.63048 2005 10 24 53667 0.0968 0.4148 -0.63065 2005 10 25 53668 0.0975 0.4141 -0.63092 2005 10 26 53669 0.0982 0.4134 -0.63133 2005 10 27 53670 0.0988 0.4128 -0.63191 2005 10 28 53671 0.0995 0.4121 -0.63267 2005 10 29 53672 0.1002 0.4114 -0.63359 2005 10 30 53673 0.1008 0.4107 -0.63461 2005 10 31 53674 0.1014 0.4099 -0.63567 2005 11 1 53675 0.1021 0.4092 -0.63668 2005 11 2 53676 0.1027 0.4085 -0.63757 2005 11 3 53677 0.1033 0.4077 -0.63827 2005 11 4 53678 0.1037 0.4070 -0.63875 2005 11 5 53679 0.1043 0.4062 -0.63905 2005 11 6 53680 0.1049 0.4054 -0.63926 2005 11 7 53681 0.1055 0.4046 -0.63949 2005 11 8 53682 0.1060 0.4038 -0.63988 2005 11 9 53683 0.1066 0.4030 -0.64053 2005 11 10 53684 0.1071 0.4022 -0.64146 2005 11 11 53685 0.1076 0.4014 -0.64266 2005 11 12 53686 0.1081 0.4006 -0.64403 2005 11 13 53687 0.1087 0.3997 -0.64542 2005 11 14 53688 0.1091 0.3989 -0.64670 2005 11 15 53689 0.1096 0.3980 -0.64776 2005 11 16 53690 0.1101 0.3972 -0.64853 2005 11 17 53691 0.1106 0.3963 -0.64903 2005 11 18 53692 0.1110 0.3954 -0.64933 2005 11 19 53693 0.1115 0.3946 -0.64951 2005 11 20 53694 0.1119 0.3937 -0.64967 2005 11 21 53695 0.1123 0.3928 -0.64989 2005 11 22 53696 0.1127 0.3919 -0.65023 2005 11 23 53697 0.1131 0.3910 -0.65073 2005 11 24 53698 0.1135 0.3901 -0.65139 2005 11 25 53699 0.1138 0.3891 -0.65223 2005 11 26 53700 0.1142 0.3882 -0.65318 2005 11 27 53701 0.1146 0.3873 -0.65419 2005 11 28 53702 0.1149 0.3864 -0.65519 2005 11 29 53703 0.1152 0.3854 -0.65610 2005 11 30 53704 0.1155 0.3845 -0.65684 2005 12 1 53705 0.1158 0.3835 -0.65736 2005 12 2 53706 0.1161 0.3826 -0.65768 2005 12 3 53707 0.1164 0.3816 -0.65785 2005 12 4 53708 0.1167 0.3807 -0.65800 2005 12 5 53709 0.1169 0.3797 -0.65825 2005 12 6 53710 0.1172 0.3788 -0.65873 2005 12 7 53711 0.1174 0.3778 -0.65947 2005 12 8 53712 0.1176 0.3768 -0.66046 2005 12 9 53713 0.1178 0.3759 -0.66161 2005 12 10 53714 0.1180 0.3749 -0.66278 2005 12 11 53715 0.1182 0.3739 -0.66385 2005 12 12 53716 0.1184 0.3729 -0.66471 2005 12 13 53717 0.1185 0.3720 -0.66531 2005 12 14 53718 0.1186 0.3710 -0.66564 2005 12 15 53719 0.1188 0.3700 -0.66575 2005 12 16 53720 0.1189 0.3690 -0.66572 2005 12 17 53721 0.1190 0.3680 -0.66564 2005 12 18 53722 0.1191 0.3671 -0.66560 2005 12 19 53723 0.1192 0.3661 -0.66566 2005 12 20 53724 0.1192 0.3651 -0.66588 2005 12 21 53725 0.1193 0.3641 -0.66627 2005 12 22 53726 0.1193 0.3632 -0.66681 2005 12 23 53727 0.1194 0.3622 -0.66748 2005 12 24 53728 0.1194 0.3612 -0.66822 2005 12 25 53729 0.1194 0.3602 -0.66897 2005 12 26 53730 0.1194 0.3593 -0.66966 2005 12 27 53731 0.1194 0.3583 -0.67023 2005 12 28 53732 0.1193 0.3573 -0.67061 2005 12 29 53733 0.1193 0.3564 -0.67079 2005 12 30 53734 0.1192 0.3554 -0.67080 2005 12 31 53735 0.1191 0.3545 -0.67075 2006 1 1 53736 0.1190 0.3535 0.32922 2006 1 2 53737 0.1189 0.3526 0.32898 2006 1 3 53738 0.1188 0.3516 0.32845 2006 1 4 53739 0.1187 0.3507 0.32764 2006 1 5 53740 0.1186 0.3498 0.32662 2006 1 6 53741 0.1184 0.3489 0.32556 2006 1 7 53742 0.1182 0.3479 0.32458 2006 1 8 53743 0.1181 0.3470 0.32381 2006 1 9 53744 0.1179 0.3461 0.32330 2006 1 10 53745 0.1177 0.3452 0.32306 2006 1 11 53746 0.1175 0.3443 0.32304 2006 1 12 53747 0.1172 0.3434 0.32317 2006 1 13 53748 0.1170 0.3426 0.32335 2006 1 14 53749 0.1167 0.3417 0.32351 2006 1 15 53750 0.1165 0.3408 0.32356 2006 1 16 53751 0.1162 0.3400 0.32347 2006 1 17 53752 0.1159 0.3391 0.32319 2006 1 18 53753 0.1156 0.3383 0.32275 2006 1 19 53754 0.1153 0.3374 0.32217 2006 1 20 53755 0.1150 0.3366 0.32150 2006 1 21 53756 0.1146 0.3358 0.32081 2006 1 22 53757 0.1143 0.3350 0.32015 2006 1 23 53758 0.1139 0.3342 0.31960 2006 1 24 53759 0.1135 0.3334 0.31920 2006 1 25 53760 0.1131 0.3326 0.31898 2006 1 26 53761 0.1128 0.3319 0.31893 2006 1 27 53762 0.1123 0.3311 0.31897 2006 1 28 53763 0.1119 0.3304 0.31897 2006 1 29 53764 0.1115 0.3296 0.31880 2006 1 30 53765 0.1111 0.3289 0.31832 2006 1 31 53766 0.1106 0.3282 0.31750 2006 2 1 53767 0.1102 0.3275 0.31641 2006 2 2 53768 0.1097 0.3268 0.31519 2006 2 3 53769 0.1092 0.3261 0.31401 2006 2 4 53770 0.1087 0.3254 0.31303 2006 2 5 53771 0.1082 0.3248 0.31233 2006 2 6 53772 0.1077 0.3241 0.31193 2006 2 7 53773 0.1072 0.3235 0.31177 2006 2 8 53774 0.1067 0.3229 0.31179 2006 2 9 53775 0.1061 0.3223 0.31188 2006 2 10 53776 0.1056 0.3217 0.31196 2006 2 11 53777 0.1050 0.3211 0.31195 2006 2 12 53778 0.1045 0.3205 0.31180 2006 2 13 53779 0.1039 0.3199 0.31148 2006 2 14 53780 0.1033 0.3194 0.31097 2006 2 15 53781 0.1028 0.3189 0.31029 2006 2 16 53782 0.1022 0.3183 0.30947 2006 2 17 53783 0.1016 0.3178 0.30856 2006 2 18 53784 0.1010 0.3173 0.30762 2006 2 19 53785 0.1004 0.3168 0.30669 2006 2 20 53786 0.0998 0.3163 0.30583 2006 2 21 53787 0.0992 0.3158 0.30510 2006 2 22 53788 0.0986 0.3154 0.30451 2006 2 23 53789 0.0980 0.3149 0.30405 2006 2 24 53790 0.0974 0.3145 0.30363 2006 2 25 53791 0.0968 0.3141 0.30314 2006 2 26 53792 0.0962 0.3136 0.30244 2006 2 27 53793 0.0955 0.3132 0.30145 2006 2 28 53794 0.0949 0.3129 0.30017 2006 3 1 53795 0.0943 0.3125 0.29871 2006 3 2 53796 0.0936 0.3121 0.29724 2006 3 3 53797 0.0930 0.3118 0.29594 2006 3 4 53798 0.0924 0.3114 0.29493 2006 3 5 53799 0.0917 0.3111 0.29425 2006 3 6 53800 0.0911 0.3108 0.29384 2006 3 7 53801 0.0904 0.3105 0.29361 2006 3 8 53802 0.0898 0.3102 0.29343 2006 3 9 53803 0.0891 0.3099 0.29321 2006 3 10 53804 0.0885 0.3097 0.29285 2006 3 11 53805 0.0878 0.3094 0.29230 2006 3 12 53806 0.0872 0.3092 0.29155 2006 3 13 53807 0.0865 0.3089 0.29060 2006 3 14 53808 0.0859 0.3087 0.28949 2006 3 15 53809 0.0852 0.3085 0.28827 2006 3 16 53810 0.0846 0.3083 0.28701 2006 3 17 53811 0.0839 0.3081 0.28578 2006 3 18 53812 0.0833 0.3080 0.28465 2006 3 19 53813 0.0826 0.3078 0.28365 2006 3 20 53814 0.0820 0.3077 0.28282 2006 3 21 53815 0.0813 0.3075 0.28219 2006 3 22 53816 0.0807 0.3074 0.28175 2006 3 23 53817 0.0801 0.3073 0.28137 2006 3 24 53818 0.0794 0.3072 0.28098 2006 3 25 53819 0.0788 0.3071 0.28047 2006 3 26 53820 0.0782 0.3070 0.27968 2006 3 27 53821 0.0776 0.3069 0.27851 2006 3 28 53822 0.0769 0.3068 0.27704 2006 3 29 53823 0.0763 0.3067 0.27545 2006 3 30 53824 0.0757 0.3067 0.27393 2006 3 31 53825 0.0751 0.3066 0.27259 2006 4 1 53826 0.0745 0.3066 0.27160 2006 4 2 53827 0.0739 0.3066 0.27098 2006 4 3 53828 0.0733 0.3065 0.27064 2006 4 4 53829 0.0727 0.3065 0.27040 2006 4 5 53830 0.0722 0.3065 0.27019 2006 4 6 53831 0.0716 0.3065 0.26995 2006 4 7 53832 0.0710 0.3065 0.26959 2006 4 8 53833 0.0705 0.3065 0.26906 2006 4 9 53834 0.0699 0.3065 0.26831 2006 4 10 53835 0.0694 0.3066 0.26740 2006 4 11 53836 0.0688 0.3066 0.26642 2006 4 12 53837 0.0683 0.3066 0.26530 2006 4 13 53838 0.0678 0.3067 0.26417 2006 4 14 53839 0.0673 0.3067 0.26315 2006 4 15 53840 0.0668 0.3068 0.26227 2006 4 16 53841 0.0663 0.3068 0.26158 2006 4 17 53842 0.0658 0.3069 0.26106 2006 4 18 53843 0.0653 0.3069 0.26072 2006 4 19 53844 0.0648 0.3070 0.26052 2006 4 20 53845 0.0643 0.3071 0.26031 2006 4 21 53846 0.0639 0.3072 0.25995 2006 4 22 53847 0.0634 0.3072 0.25934 2006 4 23 53848 0.0630 0.3073 0.25849 2006 4 24 53849 0.0626 0.3074 0.25731 2006 4 25 53850 0.0621 0.3075 0.25595 2006 4 26 53851 0.0617 0.3076 0.25459 2006 4 27 53852 0.0613 0.3077 0.25338 2006 4 28 53853 0.0609 0.3078 0.25247 2006 4 29 53854 0.0605 0.3078 0.25192 2006 4 30 53855 0.0601 0.3079 0.25165 2006 5 1 53856 0.0598 0.3080 0.25162 2006 5 2 53857 0.0594 0.3081 0.25175 2006 5 3 53858 0.0590 0.3082 0.25184 2006 5 4 53859 0.0587 0.3083 0.25185 2006 5 5 53860 0.0584 0.3084 0.25173 2006 5 6 53861 0.0580 0.3085 0.25143 2006 5 7 53862 0.0577 0.3086 0.25095 2006 5 8 53863 0.0574 0.3087 0.25036 2006 5 9 53864 0.0571 0.3088 0.24968 2006 5 10 53865 0.0568 0.3089 0.24901 2006 5 11 53866 0.0565 0.3090 0.24842 2006 5 12 53867 0.0562 0.3091 0.24794 2006 5 13 53868 0.0559 0.3092 0.24766 2006 5 14 53869 0.0557 0.3093 0.24758 2006 5 15 53870 0.0554 0.3094 0.24769 2006 5 16 53871 0.0552 0.3095 0.24793 2006 5 17 53872 0.0549 0.3096 0.24816 2006 5 18 53873 0.0547 0.3096 0.24830 2006 5 19 53874 0.0545 0.3097 0.24820 2006 5 20 53875 0.0543 0.3098 0.24780 2006 5 21 53876 0.0541 0.3099 0.24720 2006 5 22 53877 0.0538 0.3100 0.24641 2006 5 23 53878 0.0537 0.3100 0.24557 2006 5 24 53879 0.0535 0.3101 0.24486 2006 5 25 53880 0.0533 0.3102 0.24441 2006 5 26 53881 0.0531 0.3102 0.24431 2006 5 27 53882 0.0529 0.3103 0.24459 2006 5 28 53883 0.0528 0.3103 0.24516 2006 5 29 53884 0.0526 0.3104 0.24588 2006 5 30 53885 0.0524 0.3105 0.24663 2006 5 31 53886 0.0523 0.3105 0.24735 2006 6 1 53887 0.0521 0.3106 0.24797 2006 6 2 53888 0.0520 0.3106 0.24845 2006 6 3 53889 0.0519 0.3106 0.24875 2006 6 4 53890 0.0517 0.3107 0.24891 2006 6 5 53891 0.0516 0.3107 0.24903 2006 6 6 53892 0.0515 0.3107 0.24920 2006 6 7 53893 0.0514 0.3108 0.24947 2006 6 8 53894 0.0513 0.3108 0.24987 2006 6 9 53895 0.0511 0.3108 0.25043 2006 6 10 53896 0.0510 0.3108 0.25116 2006 6 11 53897 0.0509 0.3108 0.25208 2006 6 12 53898 0.0508 0.3108 0.25314 2006 6 13 53899 0.0507 0.3108 0.25424 2006 6 14 53900 0.0506 0.3108 0.25525 2006 6 15 53901 0.0505 0.3108 0.25602 2006 6 16 53902 0.0504 0.3108 0.25644 2006 6 17 53903 0.0503 0.3108 0.25650 2006 6 18 53904 0.0502 0.3108 0.25642 2006 6 19 53905 0.0501 0.3108 0.25626 2006 6 20 53906 0.0500 0.3108 0.25617 2006 6 21 53907 0.0499 0.3108 0.25630 2006 6 22 53908 0.0498 0.3108 0.25669 2006 6 23 53909 0.0497 0.3107 0.25735 2006 6 24 53910 0.0496 0.3107 0.25829 2006 6 25 53911 0.0495 0.3107 0.25925 2006 6 26 53912 0.0494 0.3107 0.26027 2006 6 27 53913 0.0493 0.3106 0.26131 2006 6 28 53914 0.0492 0.3106 0.26227 2006 6 29 53915 0.0491 0.3106 0.26314 2006 6 30 53916 0.0490 0.3105 0.26388 2006 7 1 53917 0.0489 0.3105 0.26453 2006 7 2 53918 0.0487 0.3104 0.26515 2006 7 3 53919 0.0486 0.3104 0.26572 2006 7 4 53920 0.0485 0.3104 0.26629 2006 7 5 53921 0.0484 0.3103 0.26697 2006 7 6 53922 0.0482 0.3103 0.26785 2006 7 7 53923 0.0481 0.3102 0.26888 2006 7 8 53924 0.0480 0.3102 0.27009 2006 7 9 53925 0.0478 0.3101 0.27146 2006 7 10 53926 0.0477 0.3101 0.27290 2006 7 11 53927 0.0475 0.3100 0.27428 2006 7 12 53928 0.0474 0.3100 0.27548 2006 7 13 53929 0.0472 0.3099 0.27640 2006 7 14 53930 0.0470 0.3099 0.27697 2006 7 15 53931 0.0469 0.3099 0.27723 2006 7 16 53932 0.0467 0.3098 0.27735 2006 7 17 53933 0.0465 0.3098 0.27749 2006 7 18 53934 0.0463 0.3097 0.27779 2006 7 19 53935 0.0461 0.3097 0.27839 2006 7 20 53936 0.0459 0.3097 0.27934 2006 7 21 53937 0.0457 0.3096 0.28060 2006 7 22 53938 0.0454 0.3096 0.28210 2006 7 23 53939 0.0452 0.3096 0.28373 2006 7 24 53940 0.0450 0.3095 0.28535 2006 7 25 53941 0.0447 0.3095 0.28683 2006 7 26 53942 0.0445 0.3095 0.28808 2006 7 27 53943 0.0442 0.3095 0.28907 2006 7 28 53944 0.0440 0.3095 0.28978 2006 7 29 53945 0.0437 0.3095 0.29030 2006 7 30 53946 0.0434 0.3094 0.29075 2006 7 31 53947 0.0431 0.3094 0.29115 2006 8 1 53948 0.0428 0.3094 0.29160 2006 8 2 53949 0.0425 0.3095 0.29215 2006 8 3 53950 0.0422 0.3095 0.29287 2006 8 4 53951 0.0419 0.3095 0.29375 2006 8 5 53952 0.0416 0.3095 0.29478 2006 8 6 53953 0.0412 0.3095 0.29581 2006 8 7 53954 0.0409 0.3096 0.29677 2006 8 8 53955 0.0405 0.3096 0.29749 2006 8 9 53956 0.0402 0.3096 0.29798 2006 8 10 53957 0.0398 0.3097 0.29812 2006 8 11 53958 0.0394 0.3097 0.29788 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) 53574 -61.47 .15 -4.90 .34 53575 -61.81 .14 -4.91 .34 53576 -62.28 .14 -5.04 .34 53577 -62.73 .10 -5.04 .34 53578 -63.14 .11 -4.88 .34 53579 -63.44 .11 -4.75 .34 53580 -63.59 .11 -4.83 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53574 0.019 0.060 -0.161 0.340 53575 0.047 0.056 -0.130 0.340 53576 0.037 0.056 -0.093 0.340 53577 0.004 0.040 -0.072 0.340 53578 -0.028 0.044 -0.066 0.340 53579 -0.046 0.044 -0.043 0.340 53580 -0.048 0.044 -0.042 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 **************************************************************************