********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 August 2011 Vol. XXIV 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 = -0.3 seconds beginning 12 May 2011 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 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 8 5 55778 0.11460 .00009 0.44326 .00009 -0.293613 0.000016 11 8 6 55779 0.11727 .00009 0.44283 .00009 -0.294026 0.000016 11 8 7 55780 0.11935 .00009 0.44242 .00009 -0.294177 0.000018 11 8 8 55781 0.12120 .00009 0.44188 .00009 -0.294131 0.000015 11 8 9 55782 0.12329 .00009 0.44119 .00009 -0.293988 0.000015 11 8 10 55783 0.12560 .00009 0.44058 .00009 -0.293829 0.000012 11 8 11 55784 0.12786 .00009 0.44012 .00009 -0.293695 0.000055 _______________________________________________________________________ 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 = 0.0907 + 0.0724 cos A + 0.0886 sin A - 0.0368 cos C + 0.0255 sin C y = 0.3318 + 0.0838 cos A - 0.0631 sin A + 0.0255 cos C + 0.0368 sin C UT1-UTC = -0.3253 - 0.00070 (MJD - 55792) - (UT2-UT1) where A = 2*pi*(MJD-55784)/365.25 and C = 2*pi*(MJD-55784)/435. TAI-UTC(MJD 55785) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55784)**0.80 S t = 0.00025 (MJD-55784)**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 8 12 55785 0.1299 0.4396 -0.29361 2011 8 13 55786 0.1318 0.4392 -0.29359 2011 8 14 55787 0.1335 0.4387 -0.29366 2011 8 15 55788 0.1352 0.4381 -0.29379 2011 8 16 55789 0.1367 0.4374 -0.29396 2011 8 17 55790 0.1382 0.4367 -0.29411 2011 8 18 55791 0.1397 0.4359 -0.29420 2011 8 19 55792 0.1411 0.4351 -0.29418 2011 8 20 55793 0.1426 0.4343 -0.29408 2011 8 21 55794 0.1439 0.4335 -0.29390 2011 8 22 55795 0.1453 0.4327 -0.29365 2011 8 23 55796 0.1466 0.4319 -0.29340 2011 8 24 55797 0.1478 0.4310 -0.29322 2011 8 25 55798 0.1491 0.4301 -0.29317 2011 8 26 55799 0.1503 0.4291 -0.29332 2011 8 27 55800 0.1515 0.4282 -0.29373 2011 8 28 55801 0.1526 0.4272 -0.29440 2011 8 29 55802 0.1538 0.4262 -0.29530 2011 8 30 55803 0.1549 0.4252 -0.29635 2011 8 31 55804 0.1560 0.4242 -0.29743 2011 9 1 55805 0.1571 0.4232 -0.29845 2011 9 2 55806 0.1581 0.4221 -0.29929 2011 9 3 55807 0.1591 0.4211 -0.29991 2011 9 4 55808 0.1601 0.4200 -0.30035 2011 9 5 55809 0.1611 0.4189 -0.30065 2011 9 6 55810 0.1621 0.4178 -0.30092 2011 9 7 55811 0.1630 0.4167 -0.30123 2011 9 8 55812 0.1639 0.4155 -0.30164 2011 9 9 55813 0.1648 0.4144 -0.30216 2011 9 10 55814 0.1657 0.4132 -0.30281 2011 9 11 55815 0.1665 0.4120 -0.30355 2011 9 12 55816 0.1673 0.4109 -0.30436 2011 9 13 55817 0.1681 0.4097 -0.30517 2011 9 14 55818 0.1689 0.4085 -0.30595 2011 9 15 55819 0.1697 0.4072 -0.30666 2011 9 16 55820 0.1704 0.4060 -0.30729 2011 9 17 55821 0.1711 0.4048 -0.30782 2011 9 18 55822 0.1718 0.4035 -0.30827 2011 9 19 55823 0.1724 0.4023 -0.30866 2011 9 20 55824 0.1731 0.4010 -0.30907 2011 9 21 55825 0.1737 0.3997 -0.30953 2011 9 22 55826 0.1743 0.3984 -0.31013 2011 9 23 55827 0.1748 0.3972 -0.31094 2011 9 24 55828 0.1754 0.3959 -0.31199 2011 9 25 55829 0.1759 0.3946 -0.31332 2011 9 26 55830 0.1764 0.3933 -0.31487 2011 9 27 55831 0.1768 0.3919 -0.31656 2011 9 28 55832 0.1773 0.3906 -0.31824 2011 9 29 55833 0.1777 0.3893 -0.31979 2011 9 30 55834 0.1781 0.3880 -0.32112 2011 10 1 55835 0.1785 0.3866 -0.32224 2011 10 2 55836 0.1788 0.3853 -0.32318 2011 10 3 55837 0.1791 0.3840 -0.32405 2011 10 4 55838 0.1794 0.3826 -0.32493 2011 10 5 55839 0.1797 0.3813 -0.32591 2011 10 6 55840 0.1800 0.3799 -0.32701 2011 10 7 55841 0.1802 0.3786 -0.32822 2011 10 8 55842 0.1804 0.3772 -0.32953 2011 10 9 55843 0.1806 0.3758 -0.33091 2011 10 10 55844 0.1807 0.3745 -0.33230 2011 10 11 55845 0.1809 0.3731 -0.33366 2011 10 12 55846 0.1810 0.3718 -0.33496 2011 10 13 55847 0.1811 0.3704 -0.33615 2011 10 14 55848 0.1811 0.3691 -0.33722 2011 10 15 55849 0.1812 0.3677 -0.33819 2011 10 16 55850 0.1812 0.3664 -0.33907 2011 10 17 55851 0.1812 0.3650 -0.33992 2011 10 18 55852 0.1811 0.3637 -0.34077 2011 10 19 55853 0.1811 0.3623 -0.34169 2011 10 20 55854 0.1810 0.3610 -0.34275 2011 10 21 55855 0.1809 0.3596 -0.34399 2011 10 22 55856 0.1808 0.3583 -0.34545 2011 10 23 55857 0.1806 0.3569 -0.34711 2011 10 24 55858 0.1805 0.3556 -0.34892 2011 10 25 55859 0.1803 0.3543 -0.35077 2011 10 26 55860 0.1801 0.3530 -0.35254 2011 10 27 55861 0.1798 0.3516 -0.35413 2011 10 28 55862 0.1796 0.3503 -0.35550 2011 10 29 55863 0.1793 0.3490 -0.35666 2011 10 30 55864 0.1790 0.3477 -0.35770 2011 10 31 55865 0.1787 0.3464 -0.35870 2011 11 1 55866 0.1784 0.3451 -0.35974 2011 11 2 55867 0.1780 0.3439 -0.36087 2011 11 3 55868 0.1776 0.3426 -0.36208 2011 11 4 55869 0.1772 0.3413 -0.36336 2011 11 5 55870 0.1768 0.3401 -0.36467 2011 11 6 55871 0.1764 0.3388 -0.36598 2011 11 7 55872 0.1759 0.3376 -0.36725 2011 11 8 55873 0.1754 0.3363 -0.36844 2011 11 9 55874 0.1749 0.3351 -0.36952 2011 11 10 55875 0.1744 0.3339 -0.37049 2011 11 11 55876 0.1739 0.3327 -0.37134 2011 11 12 55877 0.1733 0.3315 -0.37210 2011 11 13 55878 0.1728 0.3303 -0.37279 2011 11 14 55879 0.1722 0.3292 -0.37348 2011 11 15 55880 0.1716 0.3280 -0.37421 2011 11 16 55881 0.1710 0.3268 -0.37505 2011 11 17 55882 0.1703 0.3257 -0.37604 2011 11 18 55883 0.1697 0.3246 -0.37721 2011 11 19 55884 0.1690 0.3235 -0.37857 2011 11 20 55885 0.1683 0.3224 -0.38007 2011 11 21 55886 0.1676 0.3213 -0.38165 2011 11 22 55887 0.1669 0.3202 -0.38319 2011 11 23 55888 0.1661 0.3191 -0.38461 2011 11 24 55889 0.1654 0.3181 -0.38583 2011 11 25 55890 0.1646 0.3170 -0.38684 2011 11 26 55891 0.1638 0.3160 -0.38770 2011 11 27 55892 0.1630 0.3150 -0.38848 2011 11 28 55893 0.1622 0.3140 -0.38935 2011 11 29 55894 0.1614 0.3130 -0.39031 2011 11 30 55895 0.1606 0.3120 -0.39136 2011 12 1 55896 0.1597 0.3111 -0.39249 2011 12 2 55897 0.1589 0.3101 -0.39366 2011 12 3 55898 0.1580 0.3092 -0.39484 2011 12 4 55899 0.1571 0.3083 -0.39597 2011 12 5 55900 0.1562 0.3074 -0.39702 2011 12 6 55901 0.1553 0.3065 -0.39798 2011 12 7 55902 0.1544 0.3057 -0.39880 2011 12 8 55903 0.1535 0.3048 -0.39951 2011 12 9 55904 0.1525 0.3040 -0.40011 2011 12 10 55905 0.1516 0.3032 -0.40064 2011 12 11 55906 0.1506 0.3024 -0.40115 2011 12 12 55907 0.1496 0.3016 -0.40170 2011 12 13 55908 0.1487 0.3008 -0.40234 2011 12 14 55909 0.1477 0.3000 -0.40311 2011 12 15 55910 0.1467 0.2993 -0.40406 2011 12 16 55911 0.1457 0.2986 -0.40517 2011 12 17 55912 0.1447 0.2979 -0.40641 2011 12 18 55913 0.1437 0.2972 -0.40773 2011 12 19 55914 0.1426 0.2965 -0.40904 2011 12 20 55915 0.1416 0.2959 -0.41025 2011 12 21 55916 0.1406 0.2952 -0.41130 2011 12 22 55917 0.1395 0.2946 -0.41217 2011 12 23 55918 0.1385 0.2940 -0.41288 2011 12 24 55919 0.1374 0.2934 -0.41350 2011 12 25 55920 0.1364 0.2929 -0.41412 2011 12 26 55921 0.1353 0.2923 -0.41480 2011 12 27 55922 0.1342 0.2918 -0.41560 2011 12 28 55923 0.1332 0.2913 -0.41650 2011 12 29 55924 0.1321 0.2908 -0.41747 2011 12 30 55925 0.1310 0.2903 -0.41846 2011 12 31 55926 0.1299 0.2898 -0.41942 2012 1 1 55927 0.1288 0.2894 -0.42031 2012 1 2 55928 0.1278 0.2890 -0.42110 2012 1 3 55929 0.1267 0.2886 -0.42178 2012 1 4 55930 0.1256 0.2882 -0.42233 2012 1 5 55931 0.1245 0.2878 -0.42278 2012 1 6 55932 0.1234 0.2874 -0.42314 2012 1 7 55933 0.1223 0.2871 -0.42348 2012 1 8 55934 0.1212 0.2868 -0.42385 2012 1 9 55935 0.1201 0.2865 -0.42431 2012 1 10 55936 0.1191 0.2862 -0.42491 2012 1 11 55937 0.1180 0.2859 -0.42569 2012 1 12 55938 0.1169 0.2857 -0.42665 2012 1 13 55939 0.1158 0.2854 -0.42776 2012 1 14 55940 0.1147 0.2852 -0.42896 2012 1 15 55941 0.1136 0.2850 -0.43015 2012 1 16 55942 0.1125 0.2848 -0.43126 2012 1 17 55943 0.1115 0.2847 -0.43222 2012 1 18 55944 0.1104 0.2845 -0.43300 2012 1 19 55945 0.1093 0.2844 -0.43364 2012 1 20 55946 0.1083 0.2843 -0.43418 2012 1 21 55947 0.1072 0.2842 -0.43471 2012 1 22 55948 0.1061 0.2841 -0.43529 2012 1 23 55949 0.1051 0.2840 -0.43599 2012 1 24 55950 0.1040 0.2840 -0.43682 2012 1 25 55951 0.1030 0.2840 -0.43776 2012 1 26 55952 0.1020 0.2839 -0.43877 2012 1 27 55953 0.1009 0.2839 -0.43977 2012 1 28 55954 0.0999 0.2840 -0.44074 2012 1 29 55955 0.0989 0.2840 -0.44162 2012 1 30 55956 0.0979 0.2840 -0.44240 2012 1 31 55957 0.0969 0.2841 -0.44307 2012 2 1 55958 0.0959 0.2842 -0.44363 2012 2 2 55959 0.0949 0.2843 -0.44411 2012 2 3 55960 0.0939 0.2844 -0.44456 2012 2 4 55961 0.0929 0.2845 -0.44502 2012 2 5 55962 0.0920 0.2847 -0.44557 2012 2 6 55963 0.0910 0.2848 -0.44627 2012 2 7 55964 0.0901 0.2850 -0.44716 2012 2 8 55965 0.0891 0.2852 -0.44827 2012 2 9 55966 0.0882 0.2854 -0.44958 2012 2 10 55967 0.0873 0.2856 -0.45103 2012 2 11 55968 0.0864 0.2858 -0.45252 2012 2 12 55969 0.0855 0.2861 -0.45395 2012 2 13 55970 0.0846 0.2863 -0.45524 2012 2 14 55971 0.0837 0.2866 -0.45635 2012 2 15 55972 0.0828 0.2869 -0.45728 2012 2 16 55973 0.0820 0.2872 -0.45809 2012 2 17 55974 0.0811 0.2875 -0.45884 2012 2 18 55975 0.0803 0.2878 -0.45960 2012 2 19 55976 0.0794 0.2881 -0.46044 2012 2 20 55977 0.0786 0.2885 -0.46138 2012 2 21 55978 0.0778 0.2888 -0.46242 2012 2 22 55979 0.0770 0.2892 -0.46353 2012 2 23 55980 0.0762 0.2896 -0.46467 2012 2 24 55981 0.0755 0.2900 -0.46579 2012 2 25 55982 0.0747 0.2904 -0.46684 2012 2 26 55983 0.0740 0.2908 -0.46779 2012 2 27 55984 0.0732 0.2912 -0.46863 2012 2 28 55985 0.0725 0.2916 -0.46936 2012 2 29 55986 0.0718 0.2921 -0.46999 2012 3 1 55987 0.0711 0.2925 -0.47056 2012 3 2 55988 0.0704 0.2930 -0.47112 2012 3 3 55989 0.0698 0.2935 -0.47172 2012 3 4 55990 0.0691 0.2939 -0.47244 2012 3 5 55991 0.0685 0.2944 -0.47335 2012 3 6 55992 0.0679 0.2949 -0.47448 2012 3 7 55993 0.0672 0.2954 -0.47585 2012 3 8 55994 0.0666 0.2960 -0.47741 2012 3 9 55995 0.0661 0.2965 -0.47907 2012 3 10 55996 0.0655 0.2970 -0.48071 2012 3 11 55997 0.0649 0.2976 -0.48222 2012 3 12 55998 0.0644 0.2981 -0.48353 2012 3 13 55999 0.0639 0.2987 -0.48461 2012 3 14 56000 0.0633 0.2992 -0.48550 2012 3 15 56001 0.0628 0.2998 -0.48628 2012 3 16 56002 0.0624 0.3004 -0.48704 2012 3 17 56003 0.0619 0.3010 -0.48787 2012 3 18 56004 0.0614 0.3015 -0.48885 2012 3 19 56005 0.0610 0.3021 -0.49000 2012 3 20 56006 0.0606 0.3027 -0.49129 2012 3 21 56007 0.0601 0.3033 -0.49266 2012 3 22 56008 0.0597 0.3040 -0.49404 2012 3 23 56009 0.0594 0.3046 -0.49536 2012 3 24 56010 0.0590 0.3052 -0.49659 2012 3 25 56011 0.0586 0.3058 -0.49766 2012 3 26 56012 0.0583 0.3064 -0.49855 2012 3 27 56013 0.0580 0.3071 -0.49929 2012 3 28 56014 0.0577 0.3077 -0.49995 2012 3 29 56015 0.0574 0.3083 -0.50054 2012 3 30 56016 0.0571 0.3090 -0.50117 2012 3 31 56017 0.0568 0.3096 -0.50190 2012 4 1 56018 0.0565 0.3103 -0.50275 2012 4 2 56019 0.0563 0.3109 -0.50381 2012 4 3 56020 0.0561 0.3116 -0.50511 2012 4 4 56021 0.0559 0.3122 -0.50666 2012 4 5 56022 0.0557 0.3129 -0.50833 2012 4 6 56023 0.0555 0.3135 -0.51003 2012 4 7 56024 0.0553 0.3142 -0.51168 2012 4 8 56025 0.0552 0.3148 -0.51311 2012 4 9 56026 0.0550 0.3155 -0.51439 2012 4 10 56027 0.0549 0.3161 -0.51549 2012 4 11 56028 0.0548 0.3168 -0.51642 2012 4 12 56029 0.0547 0.3174 -0.51725 2012 4 13 56030 0.0546 0.3181 -0.51810 2012 4 14 56031 0.0545 0.3187 -0.51903 2012 4 15 56032 0.0544 0.3194 -0.52005 2012 4 16 56033 0.0544 0.3200 -0.52113 2012 4 17 56034 0.0544 0.3207 -0.52220 2012 4 18 56035 0.0543 0.3213 -0.52329 2012 4 19 56036 0.0543 0.3220 -0.52439 2012 4 20 56037 0.0543 0.3226 -0.52539 2012 4 21 56038 0.0544 0.3233 -0.52627 2012 4 22 56039 0.0544 0.3239 -0.52696 2012 4 23 56040 0.0544 0.3246 -0.52755 2012 4 24 56041 0.0545 0.3252 -0.52809 2012 4 25 56042 0.0546 0.3258 -0.52856 2012 4 26 56043 0.0546 0.3265 -0.52907 2012 4 27 56044 0.0547 0.3271 -0.52971 2012 4 28 56045 0.0548 0.3277 -0.53049 2012 4 29 56046 0.0549 0.3283 -0.53140 2012 4 30 56047 0.0551 0.3289 -0.53248 2012 5 1 56048 0.0552 0.3295 -0.53372 2012 5 2 56049 0.0553 0.3302 -0.53509 2012 5 3 56050 0.0555 0.3308 -0.53650 2012 5 4 56051 0.0557 0.3313 -0.53792 2012 5 5 56052 0.0559 0.3319 -0.53924 2012 5 6 56053 0.0560 0.3325 -0.54042 2012 5 7 56054 0.0562 0.3331 -0.54139 2012 5 8 56055 0.0565 0.3337 -0.54218 2012 5 9 56056 0.0567 0.3343 -0.54295 2012 5 10 56057 0.0569 0.3348 -0.54371 2012 5 11 56058 0.0571 0.3354 -0.54448 2012 5 12 56059 0.0574 0.3359 -0.54531 2012 5 13 56060 0.0576 0.3365 -0.54620 2012 5 14 56061 0.0579 0.3370 -0.54713 2012 5 15 56062 0.0582 0.3376 -0.54803 2012 5 16 56063 0.0585 0.3381 -0.54887 2012 5 17 56064 0.0588 0.3386 -0.54962 2012 5 18 56065 0.0591 0.3391 -0.55027 2012 5 19 56066 0.0594 0.3396 -0.55085 2012 5 20 56067 0.0597 0.3401 -0.55130 2012 5 21 56068 0.0600 0.3406 -0.55166 2012 5 22 56069 0.0603 0.3411 -0.55193 2012 5 23 56070 0.0607 0.3416 -0.55215 2012 5 24 56071 0.0610 0.3421 -0.55235 2012 5 25 56072 0.0613 0.3425 -0.55255 2012 5 26 56073 0.0617 0.3430 -0.55284 2012 5 27 56074 0.0621 0.3434 -0.55327 2012 5 28 56075 0.0624 0.3439 -0.55390 2012 5 29 56076 0.0628 0.3443 -0.55476 2012 5 30 56077 0.0632 0.3447 -0.55574 2012 5 31 56078 0.0635 0.3451 -0.55681 2012 6 1 56079 0.0639 0.3455 -0.55784 2012 6 2 56080 0.0643 0.3459 -0.55869 2012 6 3 56081 0.0647 0.3463 -0.55933 2012 6 4 56082 0.0651 0.3467 -0.55980 2012 6 5 56083 0.0655 0.3471 -0.56010 2012 6 6 56084 0.0659 0.3475 -0.56034 2012 6 7 56085 0.0663 0.3478 -0.56058 2012 6 8 56086 0.0667 0.3482 -0.56087 2012 6 9 56087 0.0671 0.3485 -0.56124 2012 6 10 56088 0.0676 0.3488 -0.56164 2012 6 11 56089 0.0680 0.3492 -0.56207 2012 6 12 56090 0.0684 0.3495 -0.56245 2012 6 13 56091 0.0688 0.3498 -0.56274 2012 6 14 56092 0.0692 0.3501 -0.56293 2012 6 15 56093 0.0697 0.3504 -0.56302 2012 6 16 56094 0.0701 0.3507 -0.56300 2012 6 17 56095 0.0705 0.3509 -0.56290 2012 6 18 56096 0.0710 0.3512 -0.56274 2012 6 19 56097 0.0714 0.3515 -0.56251 2012 6 20 56098 0.0718 0.3517 -0.56230 2012 6 21 56099 0.0722 0.3519 -0.56216 2012 6 22 56100 0.0727 0.3522 -0.56216 2012 6 23 56101 0.0731 0.3524 -0.56237 2012 6 24 56102 0.0735 0.3526 -0.56272 2012 6 25 56103 0.0740 0.3528 -0.56325 2012 6 26 56104 0.0744 0.3530 -0.56385 2012 6 27 56105 0.0748 0.3532 -0.56448 2012 6 28 56106 0.0752 0.3534 -0.56506 2012 6 29 56107 0.0757 0.3535 -0.56548 2012 6 30 56108 0.0761 0.3537 -0.56575 2012 7 1 56109 0.0765 0.3538 -0.56584 2012 7 2 56110 0.0769 0.3540 -0.56577 2012 7 3 56111 0.0773 0.3541 -0.56559 2012 7 4 56112 0.0777 0.3543 -0.56539 2012 7 5 56113 0.0781 0.3544 -0.56518 2012 7 6 56114 0.0786 0.3545 -0.56502 2012 7 7 56115 0.0790 0.3546 -0.56497 2012 7 8 56116 0.0793 0.3547 -0.56489 2012 7 9 56117 0.0797 0.3548 -0.56478 2012 7 10 56118 0.0801 0.3549 -0.56459 2012 7 11 56119 0.0805 0.3549 -0.56431 2012 7 12 56120 0.0809 0.3550 -0.56389 2012 7 13 56121 0.0813 0.3551 -0.56328 2012 7 14 56122 0.0816 0.3551 -0.56255 2012 7 15 56123 0.0820 0.3552 -0.56168 2012 7 16 56124 0.0824 0.3552 -0.56074 2012 7 17 56125 0.0827 0.3552 -0.55987 2012 7 18 56126 0.0831 0.3553 -0.55909 2012 7 19 56127 0.0834 0.3553 -0.55845 2012 7 20 56128 0.0838 0.3553 -0.55794 2012 7 21 56129 0.0841 0.3553 -0.55761 2012 7 22 56130 0.0844 0.3553 -0.55747 2012 7 23 56131 0.0847 0.3553 -0.55744 2012 7 24 56132 0.0851 0.3553 -0.55748 2012 7 25 56133 0.0854 0.3553 -0.55756 2012 7 26 56134 0.0857 0.3552 -0.55756 2012 7 27 56135 0.0860 0.3552 -0.55744 2012 7 28 56136 0.0862 0.3552 -0.55723 2012 7 29 56137 0.0865 0.3551 -0.55692 2012 7 30 56138 0.0868 0.3551 -0.55654 2012 7 31 56139 0.0871 0.3550 -0.55619 2012 8 1 56140 0.0873 0.3550 -0.55596 2012 8 2 56141 0.0876 0.3549 -0.55589 2012 8 3 56142 0.0878 0.3549 -0.55599 2012 8 4 56143 0.0881 0.3548 -0.55621 2012 8 5 56144 0.0883 0.3547 -0.55647 2012 8 6 56145 0.0885 0.3546 -0.55672 2012 8 7 56146 0.0887 0.3546 -0.55686 2012 8 8 56147 0.0889 0.3545 -0.55688 2012 8 9 56148 0.0891 0.3544 -0.55677 2012 8 10 56149 0.0893 0.3543 -0.55655 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) 55765 -75.16 0.13 -10.65 0.12 55766 -75.30 0.13 -10.64 0.12 55767 -75.61 0.13 -10.73 0.12 55768 -76.01 0.30 -10.79 0.15 55769 -76.28 0.30 -10.76 0.08 55770 -76.28 0.30 -10.73 0.08 55771 -76.04 0.30 -10.78 0.08 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55765 -0.308 0.052 0.126 0.120 55766 -0.271 0.052 0.142 0.120 55767 -0.228 0.052 0.147 0.120 55768 -0.195 0.119 0.166 0.150 55769 -0.168 0.119 0.201 0.080 55770 -0.143 0.119 0.232 0.080 55771 -0.123 0.119 0.268 0.080 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).