********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 August 2011 Vol. XXIV No. 034 ______________________________________________________________________ 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 19 55792 0.14196 .00009 0.43465 .00009 -0.294662 0.000022 11 8 20 55793 0.14322 .00009 0.43382 .00009 -0.294704 0.000021 11 8 21 55794 0.14425 .00009 0.43277 .00009 -0.294684 0.000017 11 8 22 55795 0.14547 .00009 0.43154 .00009 -0.294588 0.000013 11 8 23 55796 0.14666 .00009 0.43042 .00009 -0.294406 0.000011 11 8 24 55797 0.14771 .00009 0.42924 .00009 -0.294224 0.000006 11 8 25 55798 0.14893 .00009 0.42812 .00009 -0.294141 0.000006 _______________________________________________________________________ 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 = 0.0859 + 0.0893 cos A + 0.0710 sin A - 0.0276 cos C + 0.0318 sin C y = 0.3295 + 0.0683 cos A - 0.0783 sin A + 0.0318 cos C + 0.0276 sin C UT1-UTC = -0.3367 - 0.00071 (MJD - 55806) - (UT2-UT1) where A = 2*pi*(MJD-55798)/365.25 and C = 2*pi*(MJD-55798)/435. TAI-UTC(MJD 55799) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55798)**0.80 S t = 0.00025 (MJD-55798)**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 26 55799 0.1501 0.4270 -0.29421 2011 8 27 55800 0.1513 0.4262 -0.29452 2011 8 28 55801 0.1525 0.4252 -0.29509 2011 8 29 55802 0.1536 0.4243 -0.29589 2011 8 30 55803 0.1547 0.4233 -0.29684 2011 8 31 55804 0.1557 0.4223 -0.29780 2011 9 1 55805 0.1568 0.4212 -0.29866 2011 9 2 55806 0.1578 0.4202 -0.29932 2011 9 3 55807 0.1588 0.4191 -0.29975 2011 9 4 55808 0.1598 0.4181 -0.30002 2011 9 5 55809 0.1608 0.4170 -0.30018 2011 9 6 55810 0.1617 0.4159 -0.30032 2011 9 7 55811 0.1626 0.4149 -0.30052 2011 9 8 55812 0.1635 0.4138 -0.30082 2011 9 9 55813 0.1644 0.4126 -0.30125 2011 9 10 55814 0.1652 0.4115 -0.30183 2011 9 11 55815 0.1661 0.4104 -0.30250 2011 9 12 55816 0.1669 0.4092 -0.30322 2011 9 13 55817 0.1676 0.4081 -0.30395 2011 9 14 55818 0.1684 0.4069 -0.30466 2011 9 15 55819 0.1691 0.4057 -0.30532 2011 9 16 55820 0.1698 0.4045 -0.30591 2011 9 17 55821 0.1705 0.4033 -0.30643 2011 9 18 55822 0.1712 0.4021 -0.30687 2011 9 19 55823 0.1718 0.4009 -0.30725 2011 9 20 55824 0.1724 0.3997 -0.30762 2011 9 21 55825 0.1730 0.3985 -0.30805 2011 9 22 55826 0.1736 0.3972 -0.30862 2011 9 23 55827 0.1741 0.3960 -0.30939 2011 9 24 55828 0.1746 0.3947 -0.31041 2011 9 25 55829 0.1751 0.3935 -0.31170 2011 9 26 55830 0.1756 0.3922 -0.31319 2011 9 27 55831 0.1761 0.3909 -0.31480 2011 9 28 55832 0.1765 0.3897 -0.31639 2011 9 29 55833 0.1769 0.3884 -0.31783 2011 9 30 55834 0.1773 0.3871 -0.31905 2011 10 1 55835 0.1776 0.3858 -0.32004 2011 10 2 55836 0.1780 0.3845 -0.32086 2011 10 3 55837 0.1783 0.3832 -0.32160 2011 10 4 55838 0.1786 0.3819 -0.32235 2011 10 5 55839 0.1788 0.3806 -0.32318 2011 10 6 55840 0.1791 0.3793 -0.32413 2011 10 7 55841 0.1793 0.3780 -0.32519 2011 10 8 55842 0.1795 0.3767 -0.32634 2011 10 9 55843 0.1797 0.3754 -0.32755 2011 10 10 55844 0.1798 0.3741 -0.32878 2011 10 11 55845 0.1799 0.3728 -0.32999 2011 10 12 55846 0.1800 0.3714 -0.33115 2011 10 13 55847 0.1801 0.3701 -0.33221 2011 10 14 55848 0.1802 0.3688 -0.33319 2011 10 15 55849 0.1802 0.3675 -0.33407 2011 10 16 55850 0.1802 0.3662 -0.33490 2011 10 17 55851 0.1802 0.3649 -0.33570 2011 10 18 55852 0.1802 0.3636 -0.33654 2011 10 19 55853 0.1801 0.3623 -0.33747 2011 10 20 55854 0.1800 0.3610 -0.33856 2011 10 21 55855 0.1799 0.3597 -0.33985 2011 10 22 55856 0.1798 0.3584 -0.34137 2011 10 23 55857 0.1796 0.3571 -0.34310 2011 10 24 55858 0.1795 0.3558 -0.34499 2011 10 25 55859 0.1793 0.3545 -0.34693 2011 10 26 55860 0.1791 0.3533 -0.34881 2011 10 27 55861 0.1788 0.3520 -0.35052 2011 10 28 55862 0.1786 0.3507 -0.35201 2011 10 29 55863 0.1783 0.3495 -0.35331 2011 10 30 55864 0.1780 0.3482 -0.35448 2011 10 31 55865 0.1777 0.3470 -0.35562 2011 11 1 55866 0.1774 0.3457 -0.35681 2011 11 2 55867 0.1770 0.3445 -0.35809 2011 11 3 55868 0.1766 0.3433 -0.35946 2011 11 4 55869 0.1763 0.3421 -0.36090 2011 11 5 55870 0.1758 0.3408 -0.36237 2011 11 6 55871 0.1754 0.3396 -0.36384 2011 11 7 55872 0.1750 0.3384 -0.36526 2011 11 8 55873 0.1745 0.3373 -0.36660 2011 11 9 55874 0.1740 0.3361 -0.36783 2011 11 10 55875 0.1735 0.3349 -0.36893 2011 11 11 55876 0.1730 0.3338 -0.36991 2011 11 12 55877 0.1724 0.3326 -0.37079 2011 11 13 55878 0.1719 0.3315 -0.37160 2011 11 14 55879 0.1713 0.3303 -0.37241 2011 11 15 55880 0.1707 0.3292 -0.37326 2011 11 16 55881 0.1701 0.3281 -0.37421 2011 11 17 55882 0.1695 0.3270 -0.37531 2011 11 18 55883 0.1688 0.3260 -0.37660 2011 11 19 55884 0.1682 0.3249 -0.37807 2011 11 20 55885 0.1675 0.3238 -0.37969 2011 11 21 55886 0.1668 0.3228 -0.38139 2011 11 22 55887 0.1661 0.3217 -0.38305 2011 11 23 55888 0.1654 0.3207 -0.38458 2011 11 24 55889 0.1646 0.3197 -0.38591 2011 11 25 55890 0.1639 0.3187 -0.38703 2011 11 26 55891 0.1631 0.3177 -0.38799 2011 11 27 55892 0.1624 0.3168 -0.38886 2011 11 28 55893 0.1616 0.3158 -0.38975 2011 11 29 55894 0.1608 0.3149 -0.39071 2011 11 30 55895 0.1599 0.3139 -0.39177 2011 12 1 55896 0.1591 0.3130 -0.39290 2011 12 2 55897 0.1583 0.3121 -0.39408 2011 12 3 55898 0.1574 0.3112 -0.39525 2011 12 4 55899 0.1566 0.3104 -0.39637 2011 12 5 55900 0.1557 0.3095 -0.39741 2011 12 6 55901 0.1548 0.3087 -0.39835 2011 12 7 55902 0.1539 0.3079 -0.39916 2011 12 8 55903 0.1530 0.3070 -0.39985 2011 12 9 55904 0.1521 0.3063 -0.40043 2011 12 10 55905 0.1512 0.3055 -0.40094 2011 12 11 55906 0.1502 0.3047 -0.40143 2011 12 12 55907 0.1493 0.3040 -0.40201 2011 12 13 55908 0.1484 0.3032 -0.40268 2011 12 14 55909 0.1474 0.3025 -0.40350 2011 12 15 55910 0.1464 0.3018 -0.40447 2011 12 16 55911 0.1455 0.3011 -0.40562 2011 12 17 55912 0.1445 0.3005 -0.40690 2011 12 18 55913 0.1435 0.2998 -0.40825 2011 12 19 55914 0.1425 0.2992 -0.40960 2011 12 20 55915 0.1415 0.2986 -0.41084 2011 12 21 55916 0.1405 0.2980 -0.41193 2011 12 22 55917 0.1395 0.2974 -0.41284 2011 12 23 55918 0.1385 0.2968 -0.41359 2011 12 24 55919 0.1375 0.2963 -0.41426 2011 12 25 55920 0.1364 0.2957 -0.41492 2011 12 26 55921 0.1354 0.2952 -0.41565 2011 12 27 55922 0.1344 0.2947 -0.41649 2011 12 28 55923 0.1333 0.2942 -0.41744 2011 12 29 55924 0.1323 0.2938 -0.41845 2011 12 30 55925 0.1313 0.2933 -0.41949 2011 12 31 55926 0.1302 0.2929 -0.42050 2012 1 1 55927 0.1292 0.2925 -0.42144 2012 1 2 55928 0.1281 0.2921 -0.42229 2012 1 3 55929 0.1271 0.2917 -0.42301 2012 1 4 55930 0.1260 0.2914 -0.42361 2012 1 5 55931 0.1250 0.2910 -0.42411 2012 1 6 55932 0.1239 0.2907 -0.42453 2012 1 7 55933 0.1229 0.2904 -0.42492 2012 1 8 55934 0.1218 0.2901 -0.42533 2012 1 9 55935 0.1208 0.2898 -0.42584 2012 1 10 55936 0.1198 0.2896 -0.42649 2012 1 11 55937 0.1187 0.2893 -0.42731 2012 1 12 55938 0.1177 0.2891 -0.42832 2012 1 13 55939 0.1166 0.2889 -0.42949 2012 1 14 55940 0.1156 0.2887 -0.43073 2012 1 15 55941 0.1146 0.2885 -0.43197 2012 1 16 55942 0.1135 0.2884 -0.43313 2012 1 17 55943 0.1125 0.2882 -0.43414 2012 1 18 55944 0.1115 0.2881 -0.43497 2012 1 19 55945 0.1104 0.2880 -0.43566 2012 1 20 55946 0.1094 0.2879 -0.43624 2012 1 21 55947 0.1084 0.2878 -0.43681 2012 1 22 55948 0.1074 0.2878 -0.43743 2012 1 23 55949 0.1064 0.2877 -0.43817 2012 1 24 55950 0.1054 0.2877 -0.43904 2012 1 25 55951 0.1044 0.2877 -0.44001 2012 1 26 55952 0.1034 0.2877 -0.44105 2012 1 27 55953 0.1024 0.2877 -0.44209 2012 1 28 55954 0.1015 0.2878 -0.44309 2012 1 29 55955 0.1005 0.2878 -0.44400 2012 1 30 55956 0.0995 0.2879 -0.44480 2012 1 31 55957 0.0986 0.2880 -0.44549 2012 2 1 55958 0.0976 0.2881 -0.44607 2012 2 2 55959 0.0967 0.2882 -0.44657 2012 2 3 55960 0.0958 0.2883 -0.44703 2012 2 4 55961 0.0949 0.2884 -0.44751 2012 2 5 55962 0.0939 0.2886 -0.44806 2012 2 6 55963 0.0930 0.2888 -0.44876 2012 2 7 55964 0.0922 0.2890 -0.44965 2012 2 8 55965 0.0913 0.2892 -0.45074 2012 2 9 55966 0.0904 0.2894 -0.45204 2012 2 10 55967 0.0895 0.2896 -0.45346 2012 2 11 55968 0.0887 0.2898 -0.45492 2012 2 12 55969 0.0878 0.2901 -0.45631 2012 2 13 55970 0.0870 0.2904 -0.45756 2012 2 14 55971 0.0862 0.2906 -0.45863 2012 2 15 55972 0.0853 0.2909 -0.45954 2012 2 16 55973 0.0845 0.2912 -0.46034 2012 2 17 55974 0.0838 0.2915 -0.46111 2012 2 18 55975 0.0830 0.2919 -0.46193 2012 2 19 55976 0.0822 0.2922 -0.46286 2012 2 20 55977 0.0814 0.2926 -0.46393 2012 2 21 55978 0.0807 0.2929 -0.46513 2012 2 22 55979 0.0800 0.2933 -0.46645 2012 2 23 55980 0.0792 0.2937 -0.46782 2012 2 24 55981 0.0785 0.2941 -0.46920 2012 2 25 55982 0.0778 0.2945 -0.47053 2012 2 26 55983 0.0771 0.2949 -0.47178 2012 2 27 55984 0.0765 0.2953 -0.47294 2012 2 28 55985 0.0758 0.2958 -0.47400 2012 2 29 55986 0.0752 0.2962 -0.47496 2012 3 1 55987 0.0745 0.2967 -0.47586 2012 3 2 55988 0.0739 0.2971 -0.47672 2012 3 3 55989 0.0733 0.2976 -0.47759 2012 3 4 55990 0.0727 0.2981 -0.47852 2012 3 5 55991 0.0721 0.2986 -0.47958 2012 3 6 55992 0.0716 0.2991 -0.48080 2012 3 7 55993 0.0710 0.2996 -0.48221 2012 3 8 55994 0.0705 0.3001 -0.48378 2012 3 9 55995 0.0700 0.3006 -0.48543 2012 3 10 55996 0.0694 0.3011 -0.48705 2012 3 11 55997 0.0689 0.3017 -0.48853 2012 3 12 55998 0.0685 0.3022 -0.48983 2012 3 13 55999 0.0680 0.3028 -0.49094 2012 3 14 56000 0.0675 0.3033 -0.49189 2012 3 15 56001 0.0671 0.3039 -0.49278 2012 3 16 56002 0.0667 0.3044 -0.49368 2012 3 17 56003 0.0663 0.3050 -0.49465 2012 3 18 56004 0.0659 0.3056 -0.49573 2012 3 19 56005 0.0655 0.3062 -0.49693 2012 3 20 56006 0.0651 0.3068 -0.49821 2012 3 21 56007 0.0648 0.3073 -0.49952 2012 3 22 56008 0.0644 0.3079 -0.50082 2012 3 23 56009 0.0641 0.3085 -0.50205 2012 3 24 56010 0.0638 0.3091 -0.50317 2012 3 25 56011 0.0635 0.3098 -0.50417 2012 3 26 56012 0.0632 0.3104 -0.50504 2012 3 27 56013 0.0629 0.3110 -0.50580 2012 3 28 56014 0.0627 0.3116 -0.50649 2012 3 29 56015 0.0624 0.3122 -0.50716 2012 3 30 56016 0.0622 0.3128 -0.50790 2012 3 31 56017 0.0620 0.3135 -0.50875 2012 4 1 56018 0.0618 0.3141 -0.50974 2012 4 2 56019 0.0616 0.3147 -0.51090 2012 4 3 56020 0.0615 0.3153 -0.51227 2012 4 4 56021 0.0613 0.3160 -0.51387 2012 4 5 56022 0.0612 0.3166 -0.51561 2012 4 6 56023 0.0610 0.3172 -0.51738 2012 4 7 56024 0.0609 0.3179 -0.51907 2012 4 8 56025 0.0608 0.3185 -0.52060 2012 4 9 56026 0.0607 0.3191 -0.52189 2012 4 10 56027 0.0607 0.3197 -0.52296 2012 4 11 56028 0.0606 0.3204 -0.52388 2012 4 12 56029 0.0606 0.3210 -0.52470 2012 4 13 56030 0.0605 0.3216 -0.52550 2012 4 14 56031 0.0605 0.3223 -0.52642 2012 4 15 56032 0.0605 0.3229 -0.52748 2012 4 16 56033 0.0605 0.3235 -0.52869 2012 4 17 56034 0.0605 0.3241 -0.52997 2012 4 18 56035 0.0606 0.3248 -0.53127 2012 4 19 56036 0.0606 0.3254 -0.53253 2012 4 20 56037 0.0607 0.3260 -0.53368 2012 4 21 56038 0.0608 0.3266 -0.53471 2012 4 22 56039 0.0608 0.3272 -0.53558 2012 4 23 56040 0.0609 0.3278 -0.53625 2012 4 24 56041 0.0610 0.3284 -0.53679 2012 4 25 56042 0.0612 0.3290 -0.53725 2012 4 26 56043 0.0613 0.3296 -0.53767 2012 4 27 56044 0.0614 0.3302 -0.53816 2012 4 28 56045 0.0616 0.3308 -0.53876 2012 4 29 56046 0.0618 0.3314 -0.53948 2012 4 30 56047 0.0619 0.3320 -0.54040 2012 5 1 56048 0.0621 0.3325 -0.54154 2012 5 2 56049 0.0623 0.3331 -0.54287 2012 5 3 56050 0.0625 0.3337 -0.54427 2012 5 4 56051 0.0627 0.3342 -0.54563 2012 5 5 56052 0.0630 0.3348 -0.54690 2012 5 6 56053 0.0632 0.3353 -0.54793 2012 5 7 56054 0.0634 0.3359 -0.54882 2012 5 8 56055 0.0637 0.3364 -0.54955 2012 5 9 56056 0.0640 0.3369 -0.55018 2012 5 10 56057 0.0642 0.3375 -0.55073 2012 5 11 56058 0.0645 0.3380 -0.55133 2012 5 12 56059 0.0648 0.3385 -0.55201 2012 5 13 56060 0.0651 0.3390 -0.55275 2012 5 14 56061 0.0654 0.3395 -0.55352 2012 5 15 56062 0.0657 0.3400 -0.55420 2012 5 16 56063 0.0661 0.3405 -0.55486 2012 5 17 56064 0.0664 0.3409 -0.55548 2012 5 18 56065 0.0667 0.3414 -0.55596 2012 5 19 56066 0.0671 0.3419 -0.55631 2012 5 20 56067 0.0674 0.3423 -0.55646 2012 5 21 56068 0.0678 0.3428 -0.55652 2012 5 22 56069 0.0682 0.3432 -0.55654 2012 5 23 56070 0.0685 0.3436 -0.55653 2012 5 24 56071 0.0689 0.3441 -0.55659 2012 5 25 56072 0.0693 0.3445 -0.55680 2012 5 26 56073 0.0697 0.3449 -0.55718 2012 5 27 56074 0.0701 0.3453 -0.55768 2012 5 28 56075 0.0705 0.3457 -0.55834 2012 5 29 56076 0.0709 0.3461 -0.55912 2012 5 30 56077 0.0713 0.3464 -0.55996 2012 5 31 56078 0.0717 0.3468 -0.56078 2012 6 1 56079 0.0721 0.3472 -0.56154 2012 6 2 56080 0.0725 0.3475 -0.56220 2012 6 3 56081 0.0730 0.3479 -0.56270 2012 6 4 56082 0.0734 0.3482 -0.56303 2012 6 5 56083 0.0738 0.3485 -0.56325 2012 6 6 56084 0.0742 0.3488 -0.56350 2012 6 7 56085 0.0747 0.3491 -0.56379 2012 6 8 56086 0.0751 0.3494 -0.56411 2012 6 9 56087 0.0756 0.3497 -0.56449 2012 6 10 56088 0.0760 0.3500 -0.56491 2012 6 11 56089 0.0764 0.3503 -0.56534 2012 6 12 56090 0.0769 0.3505 -0.56570 2012 6 13 56091 0.0773 0.3508 -0.56596 2012 6 14 56092 0.0778 0.3510 -0.56610 2012 6 15 56093 0.0782 0.3513 -0.56613 2012 6 16 56094 0.0787 0.3515 -0.56609 2012 6 17 56095 0.0791 0.3517 -0.56593 2012 6 18 56096 0.0796 0.3519 -0.56571 2012 6 19 56097 0.0800 0.3521 -0.56543 2012 6 20 56098 0.0805 0.3523 -0.56515 2012 6 21 56099 0.0809 0.3525 -0.56488 2012 6 22 56100 0.0814 0.3527 -0.56467 2012 6 23 56101 0.0818 0.3529 -0.56456 2012 6 24 56102 0.0822 0.3530 -0.56460 2012 6 25 56103 0.0827 0.3532 -0.56483 2012 6 26 56104 0.0831 0.3533 -0.56524 2012 6 27 56105 0.0836 0.3534 -0.56571 2012 6 28 56106 0.0840 0.3536 -0.56620 2012 6 29 56107 0.0844 0.3537 -0.56661 2012 6 30 56108 0.0849 0.3538 -0.56684 2012 7 1 56109 0.0853 0.3539 -0.56689 2012 7 2 56110 0.0857 0.3540 -0.56683 2012 7 3 56111 0.0861 0.3540 -0.56667 2012 7 4 56112 0.0866 0.3541 -0.56652 2012 7 5 56113 0.0870 0.3542 -0.56641 2012 7 6 56114 0.0874 0.3542 -0.56638 2012 7 7 56115 0.0878 0.3543 -0.56643 2012 7 8 56116 0.0882 0.3543 -0.56651 2012 7 9 56117 0.0886 0.3544 -0.56658 2012 7 10 56118 0.0890 0.3544 -0.56659 2012 7 11 56119 0.0893 0.3544 -0.56650 2012 7 12 56120 0.0897 0.3544 -0.56630 2012 7 13 56121 0.0901 0.3544 -0.56600 2012 7 14 56122 0.0905 0.3544 -0.56562 2012 7 15 56123 0.0908 0.3544 -0.56519 2012 7 16 56124 0.0912 0.3544 -0.56474 2012 7 17 56125 0.0915 0.3544 -0.56428 2012 7 18 56126 0.0919 0.3543 -0.56389 2012 7 19 56127 0.0922 0.3543 -0.56361 2012 7 20 56128 0.0926 0.3542 -0.56352 2012 7 21 56129 0.0929 0.3542 -0.56366 2012 7 22 56130 0.0932 0.3541 -0.56396 2012 7 23 56131 0.0935 0.3541 -0.56442 2012 7 24 56132 0.0938 0.3540 -0.56490 2012 7 25 56133 0.0941 0.3539 -0.56536 2012 7 26 56134 0.0944 0.3538 -0.56571 2012 7 27 56135 0.0947 0.3538 -0.56589 2012 7 28 56136 0.0950 0.3537 -0.56592 2012 7 29 56137 0.0952 0.3536 -0.56583 2012 7 30 56138 0.0955 0.3535 -0.56565 2012 7 31 56139 0.0957 0.3534 -0.56542 2012 8 1 56140 0.0960 0.3532 -0.56524 2012 8 2 56141 0.0962 0.3531 -0.56508 2012 8 3 56142 0.0964 0.3530 -0.56498 2012 8 4 56143 0.0967 0.3529 -0.56499 2012 8 5 56144 0.0969 0.3528 -0.56496 2012 8 6 56145 0.0971 0.3526 -0.56488 2012 8 7 56146 0.0972 0.3525 -0.56472 2012 8 8 56147 0.0974 0.3524 -0.56448 2012 8 9 56148 0.0976 0.3522 -0.56410 2012 8 10 56149 0.0978 0.3521 -0.56355 2012 8 11 56150 0.0979 0.3519 -0.56290 2012 8 12 56151 0.0981 0.3518 -0.56216 2012 8 13 56152 0.0982 0.3516 -0.56141 2012 8 14 56153 0.0983 0.3514 -0.56076 2012 8 15 56154 0.0984 0.3513 -0.56026 2012 8 16 56155 0.0985 0.3511 -0.55993 2012 8 17 56156 0.0986 0.3510 -0.55979 2012 8 18 56157 0.0987 0.3508 -0.55984 2012 8 19 56158 0.0988 0.3506 -0.56007 2012 8 20 56159 0.0989 0.3505 -0.56039 2012 8 21 56160 0.0989 0.3503 -0.56074 2012 8 22 56161 0.0990 0.3501 -0.56107 2012 8 23 56162 0.0990 0.3499 -0.56130 2012 8 24 56163 0.0991 0.3498 -0.56139 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) 55776 -76.82 0.30 -10.09 0.05 55777 -77.52 0.30 -10.06 0.05 55778 -77.90 0.30 -10.20 0.05 55779 -77.91 0.30 -10.37 0.05 55780 -77.72 0.30 -10.52 0.03 55781 -77.62 0.30 -10.64 0.03 55782 -77.70 0.30 -10.76 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55776 -0.235 0.119 0.118 0.050 55777 -0.239 0.119 0.126 0.050 55778 -0.240 0.119 0.138 0.050 55779 -0.248 0.119 0.152 0.050 55780 -0.248 0.119 0.138 0.030 55781 -0.242 0.119 0.113 0.030 55782 -0.222 0.119 0.089 0.030 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).