********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 4 August 2011 Vol. XXIV No. 031 ______________________________________________________________________ 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 7 29 55771 0.09986 .00009 0.44637 .00009 -0.290926 0.000020 11 7 30 55772 0.10161 .00009 0.44591 .00009 -0.290740 0.000017 11 7 31 55773 0.10317 .00009 0.44580 .00009 -0.290780 0.000018 11 8 1 55774 0.10493 .00009 0.44559 .00010 -0.291109 0.000006 11 8 2 55775 0.10703 .00009 0.44506 .00010 -0.291660 0.000005 11 8 3 55776 0.10935 .00009 0.44445 .00009 -0.292321 0.000004 11 8 4 55777 0.11174 .00009 0.44390 .00009 -0.292963 0.000003 IERS Final Values MJD x y UT1-UTC " " s 11 6 2 55714 -0.0142 0.4044 -0.27841 11 6 3 55715 -0.0131 0.4057 -0.27890 11 6 4 55716 -0.0116 0.4074 -0.27945 11 6 5 55717 -0.0098 0.4093 -0.28009 11 6 6 55718 -0.0077 0.4108 -0.28088 11 6 7 55719 -0.0056 0.4123 -0.28186 11 6 8 55720 -0.0032 0.4140 -0.28299 11 6 9 55721 -0.0009 0.4156 -0.28416 11 6 10 55722 0.0018 0.4168 -0.28530 11 6 11 55723 0.0050 0.4182 -0.28635 11 6 12 55724 0.0081 0.4198 -0.28725 11 6 13 55725 0.0106 0.4211 -0.28793 11 6 14 55726 0.0132 0.4221 -0.28844 11 6 15 55727 0.0152 0.4229 -0.28879 11 6 16 55728 0.0171 0.4235 -0.28901 11 6 17 55729 0.0189 0.4244 -0.28919 11 6 18 55730 0.0209 0.4254 -0.28942 11 6 19 55731 0.0228 0.4264 -0.28973 11 6 20 55732 0.0250 0.4270 -0.29009 11 6 21 55733 0.0271 0.4277 -0.29048 11 6 22 55734 0.0291 0.4284 -0.29088 11 6 23 55735 0.0311 0.4292 -0.29123 11 6 24 55736 0.0327 0.4301 -0.29151 11 6 25 55737 0.0336 0.4308 -0.29168 11 6 26 55738 0.0347 0.4315 -0.29174 11 6 27 55739 0.0366 0.4322 -0.29170 11 6 28 55740 0.0385 0.4331 -0.29159 11 6 29 55741 0.0402 0.4338 -0.29142 11 6 30 55742 0.0421 0.4346 -0.29118 11 7 1 55743 0.0437 0.4355 -0.29089 _______________________________________________________________________ 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 = 0.0886 + 0.0627 cos A + 0.0957 sin A - 0.0411 cos C + 0.0216 sin C y = 0.3328 + 0.0900 cos A - 0.0543 sin A + 0.0216 cos C + 0.0411 sin C UT1-UTC = -0.3195 - 0.00070 (MJD - 55785) - (UT2-UT1) where A = 2*pi*(MJD-55777)/365.25 and C = 2*pi*(MJD-55777)/435. TAI-UTC(MJD 55778) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55777)**0.80 S t = 0.00025 (MJD-55777)**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 5 55778 0.1139 0.4434 -0.29346 2011 8 6 55779 0.1160 0.4430 -0.29374 2011 8 7 55780 0.1179 0.4425 -0.29378 2011 8 8 55781 0.1196 0.4420 -0.29364 2011 8 9 55782 0.1212 0.4414 -0.29339 2011 8 10 55783 0.1228 0.4408 -0.29309 2011 8 11 55784 0.1244 0.4402 -0.29282 2011 8 12 55785 0.1260 0.4395 -0.29265 2011 8 13 55786 0.1275 0.4389 -0.29261 2011 8 14 55787 0.1290 0.4382 -0.29274 2011 8 15 55788 0.1305 0.4376 -0.29299 2011 8 16 55789 0.1319 0.4369 -0.29332 2011 8 17 55790 0.1333 0.4361 -0.29367 2011 8 18 55791 0.1346 0.4354 -0.29396 2011 8 19 55792 0.1360 0.4346 -0.29416 2011 8 20 55793 0.1373 0.4339 -0.29425 2011 8 21 55794 0.1386 0.4330 -0.29427 2011 8 22 55795 0.1399 0.4322 -0.29424 2011 8 23 55796 0.1411 0.4314 -0.29418 2011 8 24 55797 0.1424 0.4305 -0.29415 2011 8 25 55798 0.1436 0.4297 -0.29419 2011 8 26 55799 0.1448 0.4288 -0.29438 2011 8 27 55800 0.1459 0.4279 -0.29479 2011 8 28 55801 0.1471 0.4269 -0.29546 2011 8 29 55802 0.1482 0.4260 -0.29635 2011 8 30 55803 0.1493 0.4250 -0.29740 2011 8 31 55804 0.1504 0.4241 -0.29849 2011 9 1 55805 0.1515 0.4231 -0.29947 2011 9 2 55806 0.1525 0.4221 -0.30025 2011 9 3 55807 0.1536 0.4210 -0.30081 2011 9 4 55808 0.1546 0.4200 -0.30119 2011 9 5 55809 0.1556 0.4190 -0.30145 2011 9 6 55810 0.1565 0.4179 -0.30167 2011 9 7 55811 0.1575 0.4168 -0.30195 2011 9 8 55812 0.1584 0.4157 -0.30233 2011 9 9 55813 0.1593 0.4146 -0.30285 2011 9 10 55814 0.1602 0.4135 -0.30350 2011 9 11 55815 0.1610 0.4124 -0.30427 2011 9 12 55816 0.1618 0.4113 -0.30512 2011 9 13 55817 0.1627 0.4101 -0.30599 2011 9 14 55818 0.1634 0.4090 -0.30684 2011 9 15 55819 0.1642 0.4078 -0.30764 2011 9 16 55820 0.1650 0.4066 -0.30836 2011 9 17 55821 0.1657 0.4054 -0.30900 2011 9 18 55822 0.1664 0.4042 -0.30957 2011 9 19 55823 0.1670 0.4030 -0.31009 2011 9 20 55824 0.1677 0.4018 -0.31061 2011 9 21 55825 0.1683 0.4006 -0.31118 2011 9 22 55826 0.1689 0.3993 -0.31188 2011 9 23 55827 0.1695 0.3981 -0.31276 2011 9 24 55828 0.1701 0.3969 -0.31390 2011 9 25 55829 0.1706 0.3956 -0.31531 2011 9 26 55830 0.1711 0.3943 -0.31694 2011 9 27 55831 0.1716 0.3931 -0.31869 2011 9 28 55832 0.1721 0.3918 -0.32044 2011 9 29 55833 0.1725 0.3905 -0.32203 2011 9 30 55834 0.1729 0.3892 -0.32341 2011 10 1 55835 0.1733 0.3879 -0.32457 2011 10 2 55836 0.1737 0.3866 -0.32555 2011 10 3 55837 0.1741 0.3854 -0.32645 2011 10 4 55838 0.1744 0.3841 -0.32735 2011 10 5 55839 0.1747 0.3827 -0.32831 2011 10 6 55840 0.1750 0.3814 -0.32937 2011 10 7 55841 0.1752 0.3801 -0.33053 2011 10 8 55842 0.1754 0.3788 -0.33178 2011 10 9 55843 0.1757 0.3775 -0.33307 2011 10 10 55844 0.1758 0.3762 -0.33436 2011 10 11 55845 0.1760 0.3749 -0.33562 2011 10 12 55846 0.1761 0.3736 -0.33679 2011 10 13 55847 0.1763 0.3723 -0.33786 2011 10 14 55848 0.1764 0.3709 -0.33882 2011 10 15 55849 0.1764 0.3696 -0.33967 2011 10 16 55850 0.1765 0.3683 -0.34045 2011 10 17 55851 0.1765 0.3670 -0.34120 2011 10 18 55852 0.1765 0.3657 -0.34196 2011 10 19 55853 0.1765 0.3644 -0.34281 2011 10 20 55854 0.1764 0.3631 -0.34380 2011 10 21 55855 0.1764 0.3618 -0.34498 2011 10 22 55856 0.1763 0.3605 -0.34638 2011 10 23 55857 0.1762 0.3592 -0.34799 2011 10 24 55858 0.1761 0.3579 -0.34974 2011 10 25 55859 0.1759 0.3566 -0.35153 2011 10 26 55860 0.1757 0.3553 -0.35324 2011 10 27 55861 0.1755 0.3540 -0.35476 2011 10 28 55862 0.1753 0.3527 -0.35605 2011 10 29 55863 0.1751 0.3515 -0.35714 2011 10 30 55864 0.1748 0.3502 -0.35809 2011 10 31 55865 0.1745 0.3489 -0.35901 2011 11 1 55866 0.1743 0.3477 -0.35998 2011 11 2 55867 0.1739 0.3464 -0.36103 2011 11 3 55868 0.1736 0.3452 -0.36217 2011 11 4 55869 0.1732 0.3440 -0.36338 2011 11 5 55870 0.1729 0.3427 -0.36463 2011 11 6 55871 0.1725 0.3415 -0.36589 2011 11 7 55872 0.1720 0.3403 -0.36711 2011 11 8 55873 0.1716 0.3391 -0.36825 2011 11 9 55874 0.1712 0.3379 -0.36929 2011 11 10 55875 0.1707 0.3367 -0.37021 2011 11 11 55876 0.1702 0.3355 -0.37101 2011 11 12 55877 0.1697 0.3344 -0.37172 2011 11 13 55878 0.1692 0.3332 -0.37237 2011 11 14 55879 0.1686 0.3321 -0.37301 2011 11 15 55880 0.1681 0.3309 -0.37370 2011 11 16 55881 0.1675 0.3298 -0.37450 2011 11 17 55882 0.1669 0.3287 -0.37544 2011 11 18 55883 0.1663 0.3276 -0.37657 2011 11 19 55884 0.1656 0.3265 -0.37789 2011 11 20 55885 0.1650 0.3254 -0.37935 2011 11 21 55886 0.1643 0.3243 -0.38097 2011 11 22 55887 0.1637 0.3233 -0.38256 2011 11 23 55888 0.1630 0.3222 -0.38402 2011 11 24 55889 0.1623 0.3212 -0.38529 2011 11 25 55890 0.1615 0.3202 -0.38635 2011 11 26 55891 0.1608 0.3192 -0.38726 2011 11 27 55892 0.1601 0.3182 -0.38810 2011 11 28 55893 0.1593 0.3172 -0.38896 2011 11 29 55894 0.1585 0.3162 -0.38989 2011 11 30 55895 0.1577 0.3153 -0.39093 2011 12 1 55896 0.1569 0.3143 -0.39203 2011 12 2 55897 0.1561 0.3134 -0.39319 2011 12 3 55898 0.1553 0.3125 -0.39434 2011 12 4 55899 0.1544 0.3116 -0.39545 2011 12 5 55900 0.1536 0.3107 -0.39648 2011 12 6 55901 0.1527 0.3099 -0.39741 2011 12 7 55902 0.1519 0.3090 -0.39821 2011 12 8 55903 0.1510 0.3082 -0.39889 2011 12 9 55904 0.1501 0.3073 -0.39947 2011 12 10 55905 0.1492 0.3065 -0.39997 2011 12 11 55906 0.1483 0.3057 -0.40046 2011 12 12 55907 0.1474 0.3050 -0.40098 2011 12 13 55908 0.1464 0.3042 -0.40159 2011 12 14 55909 0.1455 0.3035 -0.40234 2011 12 15 55910 0.1445 0.3027 -0.40326 2011 12 16 55911 0.1436 0.3020 -0.40434 2011 12 17 55912 0.1426 0.3013 -0.40556 2011 12 18 55913 0.1417 0.3006 -0.40685 2011 12 19 55914 0.1407 0.3000 -0.40813 2011 12 20 55915 0.1397 0.2993 -0.40931 2011 12 21 55916 0.1387 0.2987 -0.41034 2011 12 22 55917 0.1377 0.2981 -0.41118 2011 12 23 55918 0.1367 0.2975 -0.41187 2011 12 24 55919 0.1357 0.2969 -0.41247 2011 12 25 55920 0.1347 0.2963 -0.41306 2011 12 26 55921 0.1337 0.2958 -0.41372 2011 12 27 55922 0.1327 0.2953 -0.41449 2011 12 28 55923 0.1316 0.2947 -0.41537 2011 12 29 55924 0.1306 0.2942 -0.41632 2011 12 30 55925 0.1296 0.2938 -0.41728 2011 12 31 55926 0.1286 0.2933 -0.41822 2012 1 1 55927 0.1275 0.2928 -0.41909 2012 1 2 55928 0.1265 0.2924 -0.41986 2012 1 3 55929 0.1254 0.2920 -0.42051 2012 1 4 55930 0.1244 0.2916 -0.42104 2012 1 5 55931 0.1234 0.2912 -0.42146 2012 1 6 55932 0.1223 0.2909 -0.42181 2012 1 7 55933 0.1213 0.2905 -0.42213 2012 1 8 55934 0.1202 0.2902 -0.42248 2012 1 9 55935 0.1192 0.2899 -0.42292 2012 1 10 55936 0.1181 0.2896 -0.42350 2012 1 11 55937 0.1171 0.2893 -0.42426 2012 1 12 55938 0.1161 0.2890 -0.42520 2012 1 13 55939 0.1150 0.2888 -0.42630 2012 1 14 55940 0.1140 0.2886 -0.42748 2012 1 15 55941 0.1129 0.2884 -0.42866 2012 1 16 55942 0.1119 0.2882 -0.42975 2012 1 17 55943 0.1109 0.2880 -0.43069 2012 1 18 55944 0.1098 0.2878 -0.43147 2012 1 19 55945 0.1088 0.2877 -0.43209 2012 1 20 55946 0.1078 0.2875 -0.43261 2012 1 21 55947 0.1068 0.2874 -0.43312 2012 1 22 55948 0.1058 0.2873 -0.43369 2012 1 23 55949 0.1048 0.2873 -0.43437 2012 1 24 55950 0.1038 0.2872 -0.43519 2012 1 25 55951 0.1028 0.2871 -0.43611 2012 1 26 55952 0.1018 0.2871 -0.43710 2012 1 27 55953 0.1008 0.2871 -0.43809 2012 1 28 55954 0.0998 0.2871 -0.43904 2012 1 29 55955 0.0988 0.2871 -0.43991 2012 1 30 55956 0.0978 0.2871 -0.44068 2012 1 31 55957 0.0969 0.2872 -0.44134 2012 2 1 55958 0.0959 0.2872 -0.44189 2012 2 2 55959 0.0950 0.2873 -0.44236 2012 2 3 55960 0.0940 0.2874 -0.44280 2012 2 4 55961 0.0931 0.2875 -0.44326 2012 2 5 55962 0.0922 0.2876 -0.44380 2012 2 6 55963 0.0912 0.2877 -0.44449 2012 2 7 55964 0.0903 0.2879 -0.44536 2012 2 8 55965 0.0894 0.2880 -0.44644 2012 2 9 55966 0.0885 0.2882 -0.44770 2012 2 10 55967 0.0876 0.2884 -0.44908 2012 2 11 55968 0.0868 0.2886 -0.45048 2012 2 12 55969 0.0859 0.2888 -0.45180 2012 2 13 55970 0.0850 0.2890 -0.45294 2012 2 14 55971 0.0842 0.2893 -0.45390 2012 2 15 55972 0.0833 0.2895 -0.45467 2012 2 16 55973 0.0825 0.2898 -0.45532 2012 2 17 55974 0.0817 0.2901 -0.45592 2012 2 18 55975 0.0809 0.2903 -0.45657 2012 2 19 55976 0.0801 0.2906 -0.45730 2012 2 20 55977 0.0793 0.2910 -0.45816 2012 2 21 55978 0.0785 0.2913 -0.45915 2012 2 22 55979 0.0778 0.2916 -0.46022 2012 2 23 55980 0.0770 0.2920 -0.46133 2012 2 24 55981 0.0763 0.2923 -0.46243 2012 2 25 55982 0.0756 0.2927 -0.46347 2012 2 26 55983 0.0748 0.2931 -0.46442 2012 2 27 55984 0.0741 0.2935 -0.46526 2012 2 28 55985 0.0734 0.2939 -0.46599 2012 2 29 55986 0.0728 0.2943 -0.46661 2012 3 1 55987 0.0721 0.2947 -0.46715 2012 3 2 55988 0.0714 0.2951 -0.46766 2012 3 3 55989 0.0708 0.2955 -0.46822 2012 3 4 55990 0.0702 0.2960 -0.46889 2012 3 5 55991 0.0696 0.2964 -0.46976 2012 3 6 55992 0.0690 0.2969 -0.47089 2012 3 7 55993 0.0684 0.2974 -0.47227 2012 3 8 55994 0.0678 0.2979 -0.47386 2012 3 9 55995 0.0672 0.2983 -0.47555 2012 3 10 55996 0.0667 0.2988 -0.47721 2012 3 11 55997 0.0661 0.2993 -0.47871 2012 3 12 55998 0.0656 0.2998 -0.47996 2012 3 13 55999 0.0651 0.3004 -0.48097 2012 3 14 56000 0.0646 0.3009 -0.48181 2012 3 15 56001 0.0641 0.3014 -0.48255 2012 3 16 56002 0.0637 0.3019 -0.48332 2012 3 17 56003 0.0632 0.3025 -0.48418 2012 3 18 56004 0.0628 0.3030 -0.48513 2012 3 19 56005 0.0623 0.3036 -0.48623 2012 3 20 56006 0.0619 0.3041 -0.48745 2012 3 21 56007 0.0615 0.3047 -0.48877 2012 3 22 56008 0.0611 0.3053 -0.49007 2012 3 23 56009 0.0608 0.3058 -0.49130 2012 3 24 56010 0.0604 0.3064 -0.49246 2012 3 25 56011 0.0601 0.3070 -0.49346 2012 3 26 56012 0.0597 0.3076 -0.49440 2012 3 27 56013 0.0594 0.3082 -0.49524 2012 3 28 56014 0.0591 0.3087 -0.49597 2012 3 29 56015 0.0588 0.3093 -0.49659 2012 3 30 56016 0.0585 0.3099 -0.49720 2012 3 31 56017 0.0583 0.3105 -0.49790 2012 4 1 56018 0.0580 0.3111 -0.49873 2012 4 2 56019 0.0578 0.3117 -0.49974 2012 4 3 56020 0.0576 0.3123 -0.50091 2012 4 4 56021 0.0574 0.3129 -0.50230 2012 4 5 56022 0.0572 0.3135 -0.50390 2012 4 6 56023 0.0570 0.3141 -0.50554 2012 4 7 56024 0.0568 0.3147 -0.50709 2012 4 8 56025 0.0567 0.3154 -0.50844 2012 4 9 56026 0.0566 0.3160 -0.50958 2012 4 10 56027 0.0564 0.3166 -0.51057 2012 4 11 56028 0.0563 0.3172 -0.51145 2012 4 12 56029 0.0562 0.3178 -0.51233 2012 4 13 56030 0.0561 0.3184 -0.51334 2012 4 14 56031 0.0561 0.3190 -0.51449 2012 4 15 56032 0.0560 0.3196 -0.51571 2012 4 16 56033 0.0559 0.3202 -0.51701 2012 4 17 56034 0.0559 0.3208 -0.51832 2012 4 18 56035 0.0559 0.3214 -0.51960 2012 4 19 56036 0.0559 0.3220 -0.52079 2012 4 20 56037 0.0559 0.3226 -0.52191 2012 4 21 56038 0.0559 0.3232 -0.52293 2012 4 22 56039 0.0559 0.3238 -0.52386 2012 4 23 56040 0.0560 0.3244 -0.52467 2012 4 24 56041 0.0560 0.3250 -0.52536 2012 4 25 56042 0.0561 0.3256 -0.52605 2012 4 26 56043 0.0561 0.3262 -0.52671 2012 4 27 56044 0.0562 0.3267 -0.52735 2012 4 28 56045 0.0563 0.3273 -0.52806 2012 4 29 56046 0.0564 0.3279 -0.52891 2012 4 30 56047 0.0565 0.3285 -0.52995 2012 5 1 56048 0.0567 0.3290 -0.53116 2012 5 2 56049 0.0568 0.3296 -0.53252 2012 5 3 56050 0.0569 0.3301 -0.53397 2012 5 4 56051 0.0571 0.3307 -0.53545 2012 5 5 56052 0.0573 0.3312 -0.53686 2012 5 6 56053 0.0574 0.3318 -0.53809 2012 5 7 56054 0.0576 0.3323 -0.53915 2012 5 8 56055 0.0578 0.3328 -0.54003 2012 5 9 56056 0.0580 0.3334 -0.54081 2012 5 10 56057 0.0583 0.3339 -0.54157 2012 5 11 56058 0.0585 0.3344 -0.54232 2012 5 12 56059 0.0587 0.3349 -0.54313 2012 5 13 56060 0.0589 0.3354 -0.54400 2012 5 14 56061 0.0592 0.3359 -0.54495 2012 5 15 56062 0.0594 0.3364 -0.54597 2012 5 16 56063 0.0597 0.3369 -0.54696 2012 5 17 56064 0.0600 0.3374 -0.54792 2012 5 18 56065 0.0603 0.3378 -0.54877 2012 5 19 56066 0.0605 0.3383 -0.54946 2012 5 20 56067 0.0608 0.3388 -0.54999 2012 5 21 56068 0.0611 0.3392 -0.55040 2012 5 22 56069 0.0614 0.3397 -0.55067 2012 5 23 56070 0.0618 0.3401 -0.55087 2012 5 24 56071 0.0621 0.3405 -0.55102 2012 5 25 56072 0.0624 0.3409 -0.55120 2012 5 26 56073 0.0627 0.3414 -0.55149 2012 5 27 56074 0.0631 0.3418 -0.55193 2012 5 28 56075 0.0634 0.3422 -0.55254 2012 5 29 56076 0.0638 0.3426 -0.55330 2012 5 30 56077 0.0641 0.3429 -0.55417 2012 5 31 56078 0.0645 0.3433 -0.55508 2012 6 1 56079 0.0648 0.3437 -0.55596 2012 6 2 56080 0.0652 0.3441 -0.55672 2012 6 3 56081 0.0655 0.3444 -0.55735 2012 6 4 56082 0.0659 0.3448 -0.55783 2012 6 5 56083 0.0663 0.3451 -0.55817 2012 6 6 56084 0.0667 0.3454 -0.55852 2012 6 7 56085 0.0670 0.3457 -0.55892 2012 6 8 56086 0.0674 0.3461 -0.55945 2012 6 9 56087 0.0678 0.3464 -0.56012 2012 6 10 56088 0.0682 0.3467 -0.56084 2012 6 11 56089 0.0686 0.3469 -0.56159 2012 6 12 56090 0.0690 0.3472 -0.56226 2012 6 13 56091 0.0694 0.3475 -0.56282 2012 6 14 56092 0.0698 0.3478 -0.56326 2012 6 15 56093 0.0702 0.3480 -0.56350 2012 6 16 56094 0.0706 0.3483 -0.56361 2012 6 17 56095 0.0710 0.3485 -0.56357 2012 6 18 56096 0.0713 0.3487 -0.56338 2012 6 19 56097 0.0717 0.3490 -0.56309 2012 6 20 56098 0.0721 0.3492 -0.56273 2012 6 21 56099 0.0725 0.3494 -0.56233 2012 6 22 56100 0.0729 0.3496 -0.56196 2012 6 23 56101 0.0733 0.3498 -0.56176 2012 6 24 56102 0.0737 0.3500 -0.56165 2012 6 25 56103 0.0741 0.3501 -0.56166 2012 6 26 56104 0.0745 0.3503 -0.56177 2012 6 27 56105 0.0749 0.3505 -0.56194 2012 6 28 56106 0.0753 0.3506 -0.56206 2012 6 29 56107 0.0757 0.3507 -0.56201 2012 6 30 56108 0.0761 0.3509 -0.56180 2012 7 1 56109 0.0764 0.3510 -0.56139 2012 7 2 56110 0.0768 0.3511 -0.56085 2012 7 3 56111 0.0772 0.3512 -0.56034 2012 7 4 56112 0.0776 0.3513 -0.55990 2012 7 5 56113 0.0779 0.3514 -0.55958 2012 7 6 56114 0.0783 0.3515 -0.55938 2012 7 7 56115 0.0787 0.3516 -0.55927 2012 7 8 56116 0.0790 0.3517 -0.55921 2012 7 9 56117 0.0794 0.3518 -0.55912 2012 7 10 56118 0.0797 0.3518 -0.55898 2012 7 11 56119 0.0801 0.3519 -0.55878 2012 7 12 56120 0.0804 0.3519 -0.55847 2012 7 13 56121 0.0808 0.3520 -0.55804 2012 7 14 56122 0.0811 0.3520 -0.55754 2012 7 15 56123 0.0814 0.3520 -0.55695 2012 7 16 56124 0.0817 0.3520 -0.55628 2012 7 17 56125 0.0820 0.3521 -0.55563 2012 7 18 56126 0.0824 0.3521 -0.55504 2012 7 19 56127 0.0827 0.3521 -0.55458 2012 7 20 56128 0.0830 0.3521 -0.55432 2012 7 21 56129 0.0833 0.3521 -0.55428 2012 7 22 56130 0.0835 0.3520 -0.55440 2012 7 23 56131 0.0838 0.3520 -0.55466 2012 7 24 56132 0.0841 0.3520 -0.55496 2012 7 25 56133 0.0844 0.3520 -0.55523 2012 7 26 56134 0.0846 0.3519 -0.55539 2012 7 27 56135 0.0849 0.3519 -0.55542 2012 7 28 56136 0.0851 0.3518 -0.55536 2012 7 29 56137 0.0854 0.3518 -0.55518 2012 7 30 56138 0.0856 0.3517 -0.55492 2012 7 31 56139 0.0858 0.3517 -0.55474 2012 8 1 56140 0.0860 0.3516 -0.55465 2012 8 2 56141 0.0862 0.3515 -0.55465 2012 8 3 56142 0.0865 0.3514 -0.55478 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) 55758 -73.23 0.13 -10.69 0.04 55759 -73.15 0.13 -10.52 0.04 55760 -73.33 0.13 -10.51 0.04 55761 -73.70 0.30 -10.65 0.15 55762 -74.15 0.11 -10.84 0.02 55763 -74.56 0.11 -10.92 0.02 55764 -74.84 0.11 -10.88 0.02 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55714 -67.4 -11.7 55715 -67.2 -11.6 55716 -67.2 -11.6 55717 -67.5 -11.6 55718 -67.9 -11.6 55719 -68.3 -11.6 55720 -68.2 -11.6 55721 -67.8 -11.4 55722 -67.5 -11.2 55723 -67.7 -11.0 55724 -68.0 -10.8 55725 -68.4 -10.8 55726 -68.6 -11.0 55727 -68.8 -11.1 55728 -68.7 -11.1 55729 -68.5 -11.0 55730 -68.4 -10.8 55731 -68.5 -10.7 55732 -68.8 -10.9 55733 -69.3 -11.2 55734 -69.5 -11.4 55735 -69.4 -11.5 55736 -69.3 -11.4 55737 -69.5 -11.3 55738 -70.0 -11.2 55739 -70.6 -11.2 55740 -71.1 -11.2 55741 -71.3 -11.2 55742 -71.2 -11.2 55743 -71.0 -11.1 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55758 -0.129 0.052 0.011 0.040 55759 -0.112 0.052 0.027 0.040 55760 -0.114 0.052 0.040 0.040 55761 -0.126 0.119 0.057 0.150 55762 -0.151 0.044 0.044 0.020 55763 -0.189 0.044 0.022 0.020 55764 -0.230 0.044 -0.013 0.020 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55714 -0.15 -0.01 55715 -0.13 0.04 55716 -0.21 0.01 55717 -0.34 0.01 55718 -0.44 0.00 55719 -0.53 -0.04 55720 -0.46 -0.13 55721 -0.30 -0.08 55722 -0.16 -0.11 55723 -0.15 -0.17 55724 -0.12 -0.12 55725 -0.14 -0.07 55726 -0.13 -0.06 55727 -0.19 0.02 55728 -0.21 0.02 55729 -0.24 -0.04 55730 -0.29 -0.02 55731 -0.32 0.02 55732 -0.32 -0.05 55733 -0.34 -0.10 55734 -0.28 -0.07 55735 -0.19 -0.12 55736 -0.11 -0.13 55737 -0.08 -0.20 55738 -0.10 -0.21 55739 -0.12 -0.21 55740 -0.13 -0.16 55741 -0.08 -0.13 55742 -0.01 -0.11 55743 0.02 0.05 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).