********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 September 2011 Vol. XXIV 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 = -0.3 seconds beginning 12 May 2011 at 0000 UTC Beginning 1 January 2009: TAI-UTC = 34.000 000 seconds ________________________________________________________________________ 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 11 9 2 55806 0.16259 .00010 0.41984 .00009 -0.299677 0.000022 11 9 3 55807 0.16397 .00009 0.41863 .00009 -0.300298 0.000023 11 9 4 55808 0.16534 .00009 0.41715 .00009 -0.300675 0.000023 11 9 5 55809 0.16654 .00009 0.41568 .00009 -0.300928 0.000013 11 9 6 55810 0.16753 .00010 0.41441 .00009 -0.301098 0.000012 11 9 7 55811 0.16864 .00009 0.41320 .00009 -0.301258 0.000010 11 9 8 55812 0.17016 .00010 0.41198 .00009 -0.301510 0.000055 IERS Final Values MJD x y UT1-UTC " " s 11 7 2 55744 0.0452 0.4363 -0.29065 11 7 3 55745 0.0467 0.4371 -0.29055 11 7 4 55746 0.0483 0.4378 -0.29070 11 7 5 55747 0.0504 0.4389 -0.29107 11 7 6 55748 0.0525 0.4401 -0.29156 11 7 7 55749 0.0551 0.4407 -0.29207 11 7 8 55750 0.0576 0.4413 -0.29249 11 7 9 55751 0.0599 0.4417 -0.29277 11 7 10 55752 0.0621 0.4421 -0.29285 11 7 11 55753 0.0644 0.4429 -0.29274 11 7 12 55754 0.0658 0.4438 -0.29249 11 7 13 55755 0.0672 0.4443 -0.29217 11 7 14 55756 0.0688 0.4448 -0.29184 11 7 15 55757 0.0706 0.4451 -0.29157 11 7 16 55758 0.0723 0.4456 -0.29139 11 7 17 55759 0.0745 0.4463 -0.29134 11 7 18 55760 0.0766 0.4472 -0.29140 11 7 19 55761 0.0787 0.4476 -0.29158 11 7 20 55762 0.0811 0.4479 -0.29182 11 7 21 55763 0.0838 0.4482 -0.29203 11 7 22 55764 0.0866 0.4486 -0.29216 11 7 23 55765 0.0891 0.4494 -0.29222 11 7 24 55766 0.0910 0.4497 -0.29220 11 7 25 55767 0.0931 0.4496 -0.29209 11 7 26 55768 0.0949 0.4495 -0.29187 11 7 27 55769 0.0962 0.4487 -0.29156 11 7 28 55770 0.0979 0.4473 -0.29122 11 7 29 55771 0.0999 0.4463 -0.29092 11 7 30 55772 0.1016 0.4459 -0.29076 11 7 31 55773 0.1031 0.4457 -0.29082 11 8 1 55774 0.1049 0.4456 -0.29112 _______________________________________________________________________ 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 = 0.0872 + 0.1024 cos A + 0.0464 sin A - 0.0201 cos C + 0.0382 sin C y = 0.3290 + 0.0466 cos A - 0.0910 sin A + 0.0382 cos C + 0.0201 sin C UT1-UTC = -0.3467 - 0.00072 (MJD - 55820) - (UT2-UT1) where A = 2*pi*(MJD-55812)/365.25 and C = 2*pi*(MJD-55812)/435. TAI-UTC(MJD 55813) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55812)**0.80 S t = 0.00025 (MJD-55812)**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) 2011 9 9 55813 0.1714 0.4109 -0.30187 2011 9 10 55814 0.1727 0.4099 -0.30234 2011 9 11 55815 0.1739 0.4088 -0.30289 2011 9 12 55816 0.1750 0.4077 -0.30351 2011 9 13 55817 0.1759 0.4065 -0.30417 2011 9 14 55818 0.1768 0.4052 -0.30482 2011 9 15 55819 0.1776 0.4040 -0.30540 2011 9 16 55820 0.1784 0.4027 -0.30589 2011 9 17 55821 0.1792 0.4014 -0.30628 2011 9 18 55822 0.1799 0.4002 -0.30658 2011 9 19 55823 0.1806 0.3989 -0.30682 2011 9 20 55824 0.1812 0.3976 -0.30704 2011 9 21 55825 0.1818 0.3963 -0.30733 2011 9 22 55826 0.1824 0.3950 -0.30776 2011 9 23 55827 0.1829 0.3937 -0.30843 2011 9 24 55828 0.1834 0.3924 -0.30936 2011 9 25 55829 0.1839 0.3911 -0.31056 2011 9 26 55830 0.1844 0.3898 -0.31197 2011 9 27 55831 0.1848 0.3884 -0.31349 2011 9 28 55832 0.1852 0.3871 -0.31500 2011 9 29 55833 0.1855 0.3857 -0.31636 2011 9 30 55834 0.1859 0.3844 -0.31751 2011 10 1 55835 0.1862 0.3830 -0.31843 2011 10 2 55836 0.1865 0.3816 -0.31919 2011 10 3 55837 0.1868 0.3803 -0.31986 2011 10 4 55838 0.1870 0.3789 -0.32054 2011 10 5 55839 0.1872 0.3775 -0.32131 2011 10 6 55840 0.1874 0.3762 -0.32220 2011 10 7 55841 0.1876 0.3748 -0.32322 2011 10 8 55842 0.1877 0.3734 -0.32434 2011 10 9 55843 0.1878 0.3720 -0.32553 2011 10 10 55844 0.1879 0.3707 -0.32674 2011 10 11 55845 0.1880 0.3693 -0.32791 2011 10 12 55846 0.1881 0.3679 -0.32902 2011 10 13 55847 0.1881 0.3665 -0.33005 2011 10 14 55848 0.1881 0.3652 -0.33099 2011 10 15 55849 0.1880 0.3638 -0.33183 2011 10 16 55850 0.1880 0.3624 -0.33261 2011 10 17 55851 0.1879 0.3611 -0.33335 2011 10 18 55852 0.1878 0.3597 -0.33412 2011 10 19 55853 0.1877 0.3583 -0.33496 2011 10 20 55854 0.1876 0.3570 -0.33595 2011 10 21 55855 0.1874 0.3556 -0.33713 2011 10 22 55856 0.1872 0.3543 -0.33853 2011 10 23 55857 0.1870 0.3529 -0.34015 2011 10 24 55858 0.1868 0.3516 -0.34192 2011 10 25 55859 0.1865 0.3503 -0.34374 2011 10 26 55860 0.1862 0.3489 -0.34549 2011 10 27 55861 0.1860 0.3476 -0.34706 2011 10 28 55862 0.1856 0.3463 -0.34841 2011 10 29 55863 0.1853 0.3450 -0.34955 2011 10 30 55864 0.1849 0.3437 -0.35057 2011 10 31 55865 0.1845 0.3424 -0.35157 2011 11 1 55866 0.1841 0.3411 -0.35262 2011 11 2 55867 0.1837 0.3398 -0.35376 2011 11 3 55868 0.1833 0.3385 -0.35502 2011 11 4 55869 0.1828 0.3373 -0.35635 2011 11 5 55870 0.1823 0.3360 -0.35774 2011 11 6 55871 0.1818 0.3348 -0.35914 2011 11 7 55872 0.1813 0.3335 -0.36053 2011 11 8 55873 0.1808 0.3323 -0.36184 2011 11 9 55874 0.1802 0.3311 -0.36307 2011 11 10 55875 0.1796 0.3299 -0.36419 2011 11 11 55876 0.1790 0.3287 -0.36521 2011 11 12 55877 0.1784 0.3275 -0.36613 2011 11 13 55878 0.1778 0.3263 -0.36701 2011 11 14 55879 0.1771 0.3251 -0.36788 2011 11 15 55880 0.1764 0.3240 -0.36880 2011 11 16 55881 0.1758 0.3228 -0.36984 2011 11 17 55882 0.1751 0.3217 -0.37104 2011 11 18 55883 0.1743 0.3206 -0.37244 2011 11 19 55884 0.1736 0.3195 -0.37403 2011 11 20 55885 0.1729 0.3184 -0.37577 2011 11 21 55886 0.1721 0.3173 -0.37759 2011 11 22 55887 0.1713 0.3163 -0.37938 2011 11 23 55888 0.1705 0.3152 -0.38105 2011 11 24 55889 0.1697 0.3142 -0.38252 2011 11 25 55890 0.1689 0.3131 -0.38378 2011 11 26 55891 0.1680 0.3121 -0.38487 2011 11 27 55892 0.1672 0.3111 -0.38589 2011 11 28 55893 0.1663 0.3102 -0.38692 2011 11 29 55894 0.1654 0.3092 -0.38802 2011 11 30 55895 0.1645 0.3083 -0.38920 2011 12 1 55896 0.1636 0.3073 -0.39046 2011 12 2 55897 0.1627 0.3064 -0.39176 2011 12 3 55898 0.1618 0.3055 -0.39304 2011 12 4 55899 0.1608 0.3046 -0.39427 2011 12 5 55900 0.1599 0.3037 -0.39542 2011 12 6 55901 0.1589 0.3029 -0.39646 2011 12 7 55902 0.1580 0.3020 -0.39738 2011 12 8 55903 0.1570 0.3012 -0.39817 2011 12 9 55904 0.1560 0.3004 -0.39886 2011 12 10 55905 0.1550 0.2996 -0.39948 2011 12 11 55906 0.1540 0.2988 -0.40009 2011 12 12 55907 0.1529 0.2981 -0.40072 2011 12 13 55908 0.1519 0.2974 -0.40144 2011 12 14 55909 0.1509 0.2966 -0.40230 2011 12 15 55910 0.1498 0.2959 -0.40332 2011 12 16 55911 0.1488 0.2952 -0.40449 2011 12 17 55912 0.1477 0.2946 -0.40579 2011 12 18 55913 0.1467 0.2939 -0.40716 2011 12 19 55914 0.1456 0.2933 -0.40851 2011 12 20 55915 0.1445 0.2927 -0.40977 2011 12 21 55916 0.1434 0.2921 -0.41086 2011 12 22 55917 0.1423 0.2915 -0.41177 2011 12 23 55918 0.1412 0.2909 -0.41253 2011 12 24 55919 0.1401 0.2904 -0.41319 2011 12 25 55920 0.1390 0.2898 -0.41384 2011 12 26 55921 0.1379 0.2893 -0.41460 2011 12 27 55922 0.1368 0.2888 -0.41547 2011 12 28 55923 0.1357 0.2884 -0.41644 2011 12 29 55924 0.1346 0.2879 -0.41748 2011 12 30 55925 0.1335 0.2875 -0.41855 2011 12 31 55926 0.1324 0.2871 -0.41958 2012 1 1 55927 0.1312 0.2867 -0.42056 2012 1 2 55928 0.1301 0.2863 -0.42143 2012 1 3 55929 0.1290 0.2859 -0.42218 2012 1 4 55930 0.1279 0.2856 -0.42282 2012 1 5 55931 0.1267 0.2852 -0.42335 2012 1 6 55932 0.1256 0.2849 -0.42380 2012 1 7 55933 0.1245 0.2846 -0.42422 2012 1 8 55934 0.1234 0.2844 -0.42468 2012 1 9 55935 0.1222 0.2841 -0.42522 2012 1 10 55936 0.1211 0.2839 -0.42590 2012 1 11 55937 0.1200 0.2836 -0.42676 2012 1 12 55938 0.1189 0.2834 -0.42781 2012 1 13 55939 0.1178 0.2833 -0.42901 2012 1 14 55940 0.1167 0.2831 -0.43029 2012 1 15 55941 0.1156 0.2829 -0.43157 2012 1 16 55942 0.1145 0.2828 -0.43276 2012 1 17 55943 0.1134 0.2827 -0.43380 2012 1 18 55944 0.1123 0.2826 -0.43467 2012 1 19 55945 0.1112 0.2825 -0.43539 2012 1 20 55946 0.1101 0.2825 -0.43602 2012 1 21 55947 0.1090 0.2824 -0.43663 2012 1 22 55948 0.1079 0.2824 -0.43730 2012 1 23 55949 0.1069 0.2824 -0.43808 2012 1 24 55950 0.1058 0.2824 -0.43899 2012 1 25 55951 0.1047 0.2824 -0.44001 2012 1 26 55952 0.1037 0.2824 -0.44109 2012 1 27 55953 0.1026 0.2825 -0.44218 2012 1 28 55954 0.1016 0.2826 -0.44322 2012 1 29 55955 0.1006 0.2827 -0.44419 2012 1 30 55956 0.0995 0.2828 -0.44504 2012 1 31 55957 0.0985 0.2829 -0.44578 2012 2 1 55958 0.0975 0.2830 -0.44640 2012 2 2 55959 0.0965 0.2832 -0.44695 2012 2 3 55960 0.0955 0.2833 -0.44746 2012 2 4 55961 0.0946 0.2835 -0.44798 2012 2 5 55962 0.0936 0.2837 -0.44858 2012 2 6 55963 0.0926 0.2839 -0.44931 2012 2 7 55964 0.0917 0.2842 -0.45024 2012 2 8 55965 0.0907 0.2844 -0.45138 2012 2 9 55966 0.0898 0.2847 -0.45271 2012 2 10 55967 0.0889 0.2849 -0.45417 2012 2 11 55968 0.0880 0.2852 -0.45566 2012 2 12 55969 0.0871 0.2855 -0.45709 2012 2 13 55970 0.0862 0.2858 -0.45837 2012 2 14 55971 0.0853 0.2862 -0.45946 2012 2 15 55972 0.0844 0.2865 -0.46039 2012 2 16 55973 0.0836 0.2868 -0.46120 2012 2 17 55974 0.0827 0.2872 -0.46197 2012 2 18 55975 0.0819 0.2876 -0.46278 2012 2 19 55976 0.0811 0.2880 -0.46369 2012 2 20 55977 0.0803 0.2884 -0.46473 2012 2 21 55978 0.0795 0.2888 -0.46590 2012 2 22 55979 0.0787 0.2892 -0.46715 2012 2 23 55980 0.0779 0.2897 -0.46845 2012 2 24 55981 0.0772 0.2901 -0.46973 2012 2 25 55982 0.0765 0.2906 -0.47095 2012 2 26 55983 0.0757 0.2910 -0.47208 2012 2 27 55984 0.0750 0.2915 -0.47311 2012 2 28 55985 0.0743 0.2920 -0.47402 2012 2 29 55986 0.0736 0.2925 -0.47486 2012 3 1 55987 0.0730 0.2930 -0.47564 2012 3 2 55988 0.0723 0.2936 -0.47643 2012 3 3 55989 0.0717 0.2941 -0.47727 2012 3 4 55990 0.0710 0.2946 -0.47825 2012 3 5 55991 0.0704 0.2952 -0.47941 2012 3 6 55992 0.0698 0.2957 -0.48080 2012 3 7 55993 0.0692 0.2963 -0.48244 2012 3 8 55994 0.0687 0.2969 -0.48428 2012 3 9 55995 0.0681 0.2975 -0.48625 2012 3 10 55996 0.0676 0.2980 -0.48823 2012 3 11 55997 0.0670 0.2986 -0.49012 2012 3 12 55998 0.0665 0.2992 -0.49186 2012 3 13 55999 0.0660 0.2999 -0.49342 2012 3 14 56000 0.0656 0.3005 -0.49484 2012 3 15 56001 0.0651 0.3011 -0.49619 2012 3 16 56002 0.0646 0.3017 -0.49752 2012 3 17 56003 0.0642 0.3024 -0.49887 2012 3 18 56004 0.0638 0.3030 -0.50025 2012 3 19 56005 0.0634 0.3037 -0.50167 2012 3 20 56006 0.0630 0.3043 -0.50312 2012 3 21 56007 0.0626 0.3050 -0.50456 2012 3 22 56008 0.0623 0.3056 -0.50596 2012 3 23 56009 0.0619 0.3063 -0.50728 2012 3 24 56010 0.0616 0.3070 -0.50850 2012 3 25 56011 0.0613 0.3077 -0.50959 2012 3 26 56012 0.0610 0.3083 -0.51053 2012 3 27 56013 0.0607 0.3090 -0.51135 2012 3 28 56014 0.0604 0.3097 -0.51209 2012 3 29 56015 0.0602 0.3104 -0.51280 2012 3 30 56016 0.0600 0.3111 -0.51353 2012 3 31 56017 0.0597 0.3118 -0.51436 2012 4 1 56018 0.0595 0.3125 -0.51532 2012 4 2 56019 0.0593 0.3132 -0.51646 2012 4 3 56020 0.0592 0.3139 -0.51780 2012 4 4 56021 0.0590 0.3145 -0.51932 2012 4 5 56022 0.0589 0.3152 -0.52097 2012 4 6 56023 0.0587 0.3159 -0.52265 2012 4 7 56024 0.0586 0.3166 -0.52428 2012 4 8 56025 0.0585 0.3173 -0.52578 2012 4 9 56026 0.0584 0.3181 -0.52710 2012 4 10 56027 0.0584 0.3188 -0.52827 2012 4 11 56028 0.0583 0.3195 -0.52933 2012 4 12 56029 0.0583 0.3202 -0.53034 2012 4 13 56030 0.0582 0.3208 -0.53137 2012 4 14 56031 0.0582 0.3215 -0.53247 2012 4 15 56032 0.0582 0.3222 -0.53364 2012 4 16 56033 0.0582 0.3229 -0.53485 2012 4 17 56034 0.0583 0.3236 -0.53608 2012 4 18 56035 0.0583 0.3243 -0.53728 2012 4 19 56036 0.0584 0.3250 -0.53843 2012 4 20 56037 0.0584 0.3257 -0.53948 2012 4 21 56038 0.0585 0.3264 -0.54040 2012 4 22 56039 0.0586 0.3271 -0.54119 2012 4 23 56040 0.0587 0.3277 -0.54180 2012 4 24 56041 0.0589 0.3284 -0.54234 2012 4 25 56042 0.0590 0.3291 -0.54283 2012 4 26 56043 0.0591 0.3297 -0.54331 2012 4 27 56044 0.0593 0.3304 -0.54394 2012 4 28 56045 0.0595 0.3310 -0.54467 2012 4 29 56046 0.0596 0.3317 -0.54554 2012 4 30 56047 0.0598 0.3323 -0.54656 2012 5 1 56048 0.0600 0.3330 -0.54776 2012 5 2 56049 0.0603 0.3336 -0.54914 2012 5 3 56050 0.0605 0.3343 -0.55061 2012 5 4 56051 0.0607 0.3349 -0.55204 2012 5 5 56052 0.0610 0.3355 -0.55336 2012 5 6 56053 0.0613 0.3361 -0.55448 2012 5 7 56054 0.0615 0.3367 -0.55538 2012 5 8 56055 0.0618 0.3373 -0.55609 2012 5 9 56056 0.0621 0.3379 -0.55669 2012 5 10 56057 0.0624 0.3385 -0.55724 2012 5 11 56058 0.0627 0.3391 -0.55780 2012 5 12 56059 0.0630 0.3397 -0.55847 2012 5 13 56060 0.0634 0.3403 -0.55926 2012 5 14 56061 0.0637 0.3408 -0.56014 2012 5 15 56062 0.0641 0.3414 -0.56104 2012 5 16 56063 0.0644 0.3419 -0.56190 2012 5 17 56064 0.0648 0.3425 -0.56268 2012 5 18 56065 0.0652 0.3430 -0.56331 2012 5 19 56066 0.0655 0.3435 -0.56382 2012 5 20 56067 0.0659 0.3440 -0.56414 2012 5 21 56068 0.0663 0.3446 -0.56429 2012 5 22 56069 0.0667 0.3451 -0.56431 2012 5 23 56070 0.0671 0.3455 -0.56429 2012 5 24 56071 0.0676 0.3460 -0.56426 2012 5 25 56072 0.0680 0.3465 -0.56432 2012 5 26 56073 0.0684 0.3470 -0.56451 2012 5 27 56074 0.0688 0.3474 -0.56483 2012 5 28 56075 0.0693 0.3479 -0.56533 2012 5 29 56076 0.0697 0.3483 -0.56600 2012 5 30 56077 0.0702 0.3488 -0.56680 2012 5 31 56078 0.0706 0.3492 -0.56761 2012 6 1 56079 0.0711 0.3496 -0.56832 2012 6 2 56080 0.0716 0.3500 -0.56892 2012 6 3 56081 0.0720 0.3504 -0.56928 2012 6 4 56082 0.0725 0.3508 -0.56953 2012 6 5 56083 0.0730 0.3512 -0.56969 2012 6 6 56084 0.0735 0.3516 -0.56979 2012 6 7 56085 0.0740 0.3519 -0.56987 2012 6 8 56086 0.0744 0.3523 -0.57002 2012 6 9 56087 0.0749 0.3526 -0.57026 2012 6 10 56088 0.0754 0.3529 -0.57053 2012 6 11 56089 0.0759 0.3533 -0.57080 2012 6 12 56090 0.0764 0.3536 -0.57094 2012 6 13 56091 0.0769 0.3539 -0.57101 2012 6 14 56092 0.0774 0.3542 -0.57102 2012 6 15 56093 0.0779 0.3545 -0.57089 2012 6 16 56094 0.0784 0.3547 -0.57061 2012 6 17 56095 0.0789 0.3550 -0.57016 2012 6 18 56096 0.0794 0.3553 -0.56963 2012 6 19 56097 0.0799 0.3555 -0.56911 2012 6 20 56098 0.0804 0.3557 -0.56860 2012 6 21 56099 0.0809 0.3560 -0.56820 2012 6 22 56100 0.0814 0.3562 -0.56799 2012 6 23 56101 0.0819 0.3564 -0.56797 2012 6 24 56102 0.0824 0.3566 -0.56809 2012 6 25 56103 0.0829 0.3568 -0.56834 2012 6 26 56104 0.0834 0.3570 -0.56866 2012 6 27 56105 0.0839 0.3572 -0.56898 2012 6 28 56106 0.0844 0.3573 -0.56923 2012 6 29 56107 0.0849 0.3575 -0.56938 2012 6 30 56108 0.0854 0.3576 -0.56941 2012 7 1 56109 0.0859 0.3577 -0.56932 2012 7 2 56110 0.0864 0.3579 -0.56913 2012 7 3 56111 0.0869 0.3580 -0.56888 2012 7 4 56112 0.0874 0.3581 -0.56874 2012 7 5 56113 0.0878 0.3582 -0.56868 2012 7 6 56114 0.0883 0.3583 -0.56869 2012 7 7 56115 0.0888 0.3584 -0.56875 2012 7 8 56116 0.0892 0.3584 -0.56884 2012 7 9 56117 0.0897 0.3585 -0.56892 2012 7 10 56118 0.0901 0.3586 -0.56891 2012 7 11 56119 0.0906 0.3586 -0.56879 2012 7 12 56120 0.0910 0.3587 -0.56853 2012 7 13 56121 0.0915 0.3587 -0.56819 2012 7 14 56122 0.0919 0.3587 -0.56778 2012 7 15 56123 0.0923 0.3587 -0.56729 2012 7 16 56124 0.0928 0.3587 -0.56678 2012 7 17 56125 0.0932 0.3587 -0.56627 2012 7 18 56126 0.0936 0.3587 -0.56579 2012 7 19 56127 0.0940 0.3587 -0.56540 2012 7 20 56128 0.0944 0.3587 -0.56509 2012 7 21 56129 0.0948 0.3587 -0.56492 2012 7 22 56130 0.0952 0.3586 -0.56491 2012 7 23 56131 0.0955 0.3586 -0.56506 2012 7 24 56132 0.0959 0.3585 -0.56536 2012 7 25 56133 0.0963 0.3585 -0.56565 2012 7 26 56134 0.0966 0.3584 -0.56592 2012 7 27 56135 0.0970 0.3584 -0.56609 2012 7 28 56136 0.0973 0.3583 -0.56608 2012 7 29 56137 0.0976 0.3582 -0.56595 2012 7 30 56138 0.0980 0.3581 -0.56577 2012 7 31 56139 0.0983 0.3580 -0.56558 2012 8 1 56140 0.0986 0.3579 -0.56544 2012 8 2 56141 0.0989 0.3578 -0.56537 2012 8 3 56142 0.0992 0.3577 -0.56540 2012 8 4 56143 0.0994 0.3576 -0.56551 2012 8 5 56144 0.0997 0.3575 -0.56564 2012 8 6 56145 0.1000 0.3574 -0.56576 2012 8 7 56146 0.1002 0.3572 -0.56580 2012 8 8 56147 0.1005 0.3571 -0.56573 2012 8 9 56148 0.1007 0.3570 -0.56557 2012 8 10 56149 0.1009 0.3568 -0.56534 2012 8 11 56150 0.1012 0.3567 -0.56504 2012 8 12 56151 0.1014 0.3565 -0.56474 2012 8 13 56152 0.1016 0.3564 -0.56447 2012 8 14 56153 0.1018 0.3562 -0.56423 2012 8 15 56154 0.1019 0.3561 -0.56412 2012 8 16 56155 0.1021 0.3559 -0.56416 2012 8 17 56156 0.1023 0.3557 -0.56443 2012 8 18 56157 0.1024 0.3556 -0.56495 2012 8 19 56158 0.1026 0.3554 -0.56563 2012 8 20 56159 0.1027 0.3552 -0.56643 2012 8 21 56160 0.1028 0.3551 -0.56723 2012 8 22 56161 0.1029 0.3549 -0.56794 2012 8 23 56162 0.1030 0.3547 -0.56852 2012 8 24 56163 0.1031 0.3545 -0.56891 2012 8 25 56164 0.1032 0.3544 -0.56918 2012 8 26 56165 0.1033 0.3542 -0.56938 2012 8 27 56166 0.1033 0.3540 -0.56954 2012 8 28 56167 0.1034 0.3538 -0.56972 2012 8 29 56168 0.1034 0.3536 -0.56997 2012 8 30 56169 0.1035 0.3535 -0.57025 2012 8 31 56170 0.1035 0.3533 -0.57058 2012 9 1 56171 0.1035 0.3531 -0.57100 2012 9 2 56172 0.1035 0.3529 -0.57135 2012 9 3 56173 0.1035 0.3527 -0.57164 2012 9 4 56174 0.1035 0.3525 -0.57184 2012 9 5 56175 0.1034 0.3524 -0.57196 2012 9 6 56176 0.1034 0.3522 -0.57197 2012 9 7 56177 0.1033 0.3520 -0.57181 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) 55793 -78.41 0.30 -10.65 0.13 55794 -78.33 0.24 -10.78 0.07 55795 -78.57 0.24 -10.99 0.07 55796 -79.05 0.30 -11.14 0.06 55797 -79.38 0.30 -11.12 0.06 55798 -79.32 0.30 -11.01 0.06 55799 -78.97 0.30 -10.99 0.06 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55744 -70.7 -11.1 55745 -70.7 -11.1 55746 -70.9 -10.9 55747 -71.5 -10.6 55748 -72.2 -10.4 55749 -72.7 -10.4 55750 -73.0 -10.4 55751 -73.2 -10.4 55752 -73.3 -10.4 55753 -73.4 -10.5 55754 -73.7 -10.6 55755 -73.7 -10.8 55756 -73.6 -11.0 55757 -73.3 -10.9 55758 -73.1 -10.7 55759 -73.2 -10.4 55760 -73.4 -10.4 55761 -73.9 -10.5 55762 -74.3 -10.7 55763 -74.7 -10.9 55764 -74.9 -10.8 55765 -75.0 -10.8 55766 -75.2 -10.8 55767 -75.5 -10.9 55768 -76.0 -11.0 55769 -76.2 -10.8 55770 -76.1 -10.7 55771 -75.9 -10.7 55772 -75.6 -10.8 55773 -75.4 -10.8 55774 -75.4 -10.6 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55793 -0.141 0.119 0.117 0.130 55794 -0.138 0.095 0.142 0.070 55795 -0.147 0.095 0.161 0.070 55796 -0.165 0.119 0.172 0.060 55797 -0.171 0.119 0.181 0.060 55798 -0.161 0.119 0.185 0.060 55799 -0.147 0.119 0.174 0.060 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55744 0.04 0.10 55745 -0.03 0.06 55746 -0.07 0.08 55747 -0.15 0.14 55748 -0.21 0.16 55749 -0.23 0.08 55750 -0.27 0.07 55751 -0.33 0.06 55752 -0.34 0.05 55753 -0.28 0.00 55754 -0.27 0.05 55755 -0.17 0.04 55756 -0.13 -0.06 55757 -0.08 -0.02 55758 -0.08 0.00 55759 -0.13 0.15 55760 -0.14 0.15 55761 -0.21 0.21 55762 -0.21 0.18 55763 -0.24 0.04 55764 -0.25 0.07 55765 -0.24 -0.02 55766 -0.23 -0.02 55767 -0.18 -0.02 55768 -0.19 -0.04 55769 -0.14 0.16 55770 -0.07 0.26 55771 -0.07 0.35 55772 -0.07 0.37 55773 -0.10 0.34 55774 -0.10 0.26 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions (2010).