********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 16 June 2011 Vol. XXIV No. 024 ______________________________________________________________________ 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 6 10 55722 0.00182 .00010 0.41689 .00009 -0.285314 0.000015 11 6 11 55723 0.00502 .00009 0.41822 .00009 -0.286352 0.000018 11 6 12 55724 0.00806 .00009 0.41978 .00010 -0.287260 0.000017 11 6 13 55725 0.01073 .00009 0.42109 .00009 -0.287953 0.000011 11 6 14 55726 0.01317 .00009 0.42215 .00009 -0.288448 0.000012 11 6 15 55727 0.01524 .00009 0.42293 .00009 -0.288780 0.000009 11 6 16 55728 0.01709 .00009 0.42353 .00009 -0.288983 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 = 0.0907 - 0.0231 cos A + 0.1197 sin A - 0.0491 cos C - 0.0227 sin C y = 0.3332 + 0.1087 cos A + 0.0212 sin A - 0.0227 cos C + 0.0491 sin C UT1-UTC = -0.2757 - 0.00067 (MJD - 55736) - (UT2-UT1) where A = 2*pi*(MJD-55728)/365.25 and C = 2*pi*(MJD-55728)/435. TAI-UTC(MJD 55729) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55728)**0.80 S t = 0.00025 (MJD-55728)**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 6 17 55729 0.0189 0.4241 -0.28918 2011 6 18 55730 0.0208 0.4247 -0.28943 2011 6 19 55731 0.0226 0.4254 -0.28974 2011 6 20 55732 0.0244 0.4261 -0.29010 2011 6 21 55733 0.0261 0.4269 -0.29048 2011 6 22 55734 0.0278 0.4276 -0.29086 2011 6 23 55735 0.0294 0.4284 -0.29121 2011 6 24 55736 0.0311 0.4291 -0.29149 2011 6 25 55737 0.0327 0.4298 -0.29168 2011 6 26 55738 0.0344 0.4304 -0.29176 2011 6 27 55739 0.0360 0.4310 -0.29175 2011 6 28 55740 0.0376 0.4317 -0.29166 2011 6 29 55741 0.0393 0.4323 -0.29153 2011 6 30 55742 0.0409 0.4328 -0.29140 2011 7 1 55743 0.0425 0.4334 -0.29131 2011 7 2 55744 0.0442 0.4339 -0.29134 2011 7 3 55745 0.0458 0.4344 -0.29157 2011 7 4 55746 0.0474 0.4349 -0.29203 2011 7 5 55747 0.0491 0.4353 -0.29268 2011 7 6 55748 0.0507 0.4358 -0.29349 2011 7 7 55749 0.0524 0.4362 -0.29433 2011 7 8 55750 0.0540 0.4366 -0.29509 2011 7 9 55751 0.0556 0.4369 -0.29569 2011 7 10 55752 0.0573 0.4373 -0.29606 2011 7 11 55753 0.0589 0.4376 -0.29622 2011 7 12 55754 0.0606 0.4378 -0.29622 2011 7 13 55755 0.0622 0.4381 -0.29614 2011 7 14 55756 0.0638 0.4383 -0.29608 2011 7 15 55757 0.0655 0.4385 -0.29611 2011 7 16 55758 0.0671 0.4387 -0.29624 2011 7 17 55759 0.0687 0.4389 -0.29648 2011 7 18 55760 0.0704 0.4390 -0.29682 2011 7 19 55761 0.0720 0.4391 -0.29720 2011 7 20 55762 0.0736 0.4392 -0.29758 2011 7 21 55763 0.0752 0.4393 -0.29791 2011 7 22 55764 0.0768 0.4393 -0.29813 2011 7 23 55765 0.0784 0.4393 -0.29823 2011 7 24 55766 0.0801 0.4393 -0.29819 2011 7 25 55767 0.0817 0.4393 -0.29801 2011 7 26 55768 0.0832 0.4392 -0.29773 2011 7 27 55769 0.0848 0.4392 -0.29740 2011 7 28 55770 0.0864 0.4391 -0.29708 2011 7 29 55771 0.0880 0.4389 -0.29684 2011 7 30 55772 0.0895 0.4388 -0.29675 2011 7 31 55773 0.0911 0.4386 -0.29688 2011 8 1 55774 0.0926 0.4384 -0.29722 2011 8 2 55775 0.0942 0.4382 -0.29774 2011 8 3 55776 0.0957 0.4379 -0.29833 2011 8 4 55777 0.0972 0.4377 -0.29889 2011 8 5 55778 0.0987 0.4374 -0.29931 2011 8 6 55779 0.1002 0.4371 -0.29952 2011 8 7 55780 0.1017 0.4367 -0.29953 2011 8 8 55781 0.1032 0.4364 -0.29938 2011 8 9 55782 0.1047 0.4360 -0.29912 2011 8 10 55783 0.1061 0.4356 -0.29884 2011 8 11 55784 0.1076 0.4352 -0.29862 2011 8 12 55785 0.1090 0.4348 -0.29849 2011 8 13 55786 0.1104 0.4343 -0.29848 2011 8 14 55787 0.1118 0.4338 -0.29858 2011 8 15 55788 0.1132 0.4333 -0.29876 2011 8 16 55789 0.1146 0.4328 -0.29899 2011 8 17 55790 0.1160 0.4322 -0.29920 2011 8 18 55791 0.1173 0.4317 -0.29936 2011 8 19 55792 0.1187 0.4311 -0.29944 2011 8 20 55793 0.1200 0.4305 -0.29942 2011 8 21 55794 0.1213 0.4299 -0.29929 2011 8 22 55795 0.1226 0.4292 -0.29907 2011 8 23 55796 0.1238 0.4286 -0.29881 2011 8 24 55797 0.1251 0.4279 -0.29856 2011 8 25 55798 0.1263 0.4272 -0.29839 2011 8 26 55799 0.1276 0.4265 -0.29838 2011 8 27 55800 0.1288 0.4258 -0.29859 2011 8 28 55801 0.1300 0.4250 -0.29906 2011 8 29 55802 0.1311 0.4243 -0.29977 2011 8 30 55803 0.1323 0.4235 -0.30064 2011 8 31 55804 0.1334 0.4227 -0.30154 2011 9 1 55805 0.1346 0.4219 -0.30233 2011 9 2 55806 0.1357 0.4211 -0.30294 2011 9 3 55807 0.1367 0.4202 -0.30332 2011 9 4 55808 0.1378 0.4194 -0.30351 2011 9 5 55809 0.1389 0.4185 -0.30357 2011 9 6 55810 0.1399 0.4176 -0.30361 2011 9 7 55811 0.1409 0.4167 -0.30369 2011 9 8 55812 0.1419 0.4158 -0.30387 2011 9 9 55813 0.1428 0.4149 -0.30417 2011 9 10 55814 0.1438 0.4139 -0.30460 2011 9 11 55815 0.1447 0.4130 -0.30513 2011 9 12 55816 0.1456 0.4120 -0.30572 2011 9 13 55817 0.1465 0.4110 -0.30632 2011 9 14 55818 0.1474 0.4101 -0.30689 2011 9 15 55819 0.1482 0.4091 -0.30739 2011 9 16 55820 0.1491 0.4080 -0.30780 2011 9 17 55821 0.1499 0.4070 -0.30810 2011 9 18 55822 0.1506 0.4060 -0.30832 2011 9 19 55823 0.1514 0.4049 -0.30848 2011 9 20 55824 0.1522 0.4039 -0.30864 2011 9 21 55825 0.1529 0.4028 -0.30885 2011 9 22 55826 0.1536 0.4017 -0.30918 2011 9 23 55827 0.1543 0.4007 -0.30969 2011 9 24 55828 0.1549 0.3996 -0.31045 2011 9 25 55829 0.1555 0.3985 -0.31147 2011 9 26 55830 0.1562 0.3974 -0.31269 2011 9 27 55831 0.1567 0.3963 -0.31403 2011 9 28 55832 0.1573 0.3951 -0.31535 2011 9 29 55833 0.1579 0.3940 -0.31652 2011 9 30 55834 0.1584 0.3929 -0.31748 2011 10 1 55835 0.1589 0.3917 -0.31821 2011 10 2 55836 0.1594 0.3906 -0.31877 2011 10 3 55837 0.1598 0.3894 -0.31937 2011 10 4 55838 0.1603 0.3883 -0.31998 2011 10 5 55839 0.1607 0.3871 -0.32066 2011 10 6 55840 0.1611 0.3859 -0.32146 2011 10 7 55841 0.1615 0.3848 -0.32237 2011 10 8 55842 0.1618 0.3836 -0.32336 2011 10 9 55843 0.1621 0.3824 -0.32442 2011 10 10 55844 0.1624 0.3812 -0.32549 2011 10 11 55845 0.1627 0.3801 -0.32653 2011 10 12 55846 0.1630 0.3789 -0.32750 2011 10 13 55847 0.1632 0.3777 -0.32838 2011 10 14 55848 0.1635 0.3765 -0.32915 2011 10 15 55849 0.1637 0.3753 -0.32981 2011 10 16 55850 0.1638 0.3741 -0.33041 2011 10 17 55851 0.1640 0.3729 -0.33097 2011 10 18 55852 0.1641 0.3717 -0.33155 2011 10 19 55853 0.1642 0.3705 -0.33222 2011 10 20 55854 0.1643 0.3693 -0.33302 2011 10 21 55855 0.1644 0.3681 -0.33402 2011 10 22 55856 0.1644 0.3669 -0.33524 2011 10 23 55857 0.1645 0.3658 -0.33668 2011 10 24 55858 0.1645 0.3646 -0.33827 2011 10 25 55859 0.1645 0.3634 -0.33991 2011 10 26 55860 0.1644 0.3622 -0.34147 2011 10 27 55861 0.1644 0.3610 -0.34285 2011 10 28 55862 0.1643 0.3598 -0.34400 2011 10 29 55863 0.1642 0.3586 -0.34495 2011 10 30 55864 0.1641 0.3575 -0.34577 2011 10 31 55865 0.1639 0.3563 -0.34656 2011 11 1 55866 0.1638 0.3551 -0.34740 2011 11 2 55867 0.1636 0.3540 -0.34832 2011 11 3 55868 0.1634 0.3528 -0.34935 2011 11 4 55869 0.1632 0.3517 -0.35044 2011 11 5 55870 0.1630 0.3505 -0.35159 2011 11 6 55871 0.1627 0.3494 -0.35273 2011 11 7 55872 0.1625 0.3482 -0.35384 2011 11 8 55873 0.1622 0.3471 -0.35488 2011 11 9 55874 0.1619 0.3460 -0.35581 2011 11 10 55875 0.1615 0.3449 -0.35662 2011 11 11 55876 0.1612 0.3437 -0.35731 2011 11 12 55877 0.1608 0.3426 -0.35792 2011 11 13 55878 0.1604 0.3415 -0.35846 2011 11 14 55879 0.1601 0.3405 -0.35900 2011 11 15 55880 0.1596 0.3394 -0.35959 2011 11 16 55881 0.1592 0.3383 -0.36029 2011 11 17 55882 0.1588 0.3372 -0.36113 2011 11 18 55883 0.1583 0.3362 -0.36217 2011 11 19 55884 0.1578 0.3351 -0.36338 2011 11 20 55885 0.1573 0.3341 -0.36475 2011 11 21 55886 0.1568 0.3331 -0.36619 2011 11 22 55887 0.1563 0.3320 -0.36760 2011 11 23 55888 0.1557 0.3310 -0.36889 2011 11 24 55889 0.1552 0.3300 -0.36999 2011 11 25 55890 0.1546 0.3290 -0.37089 2011 11 26 55891 0.1540 0.3281 -0.37163 2011 11 27 55892 0.1534 0.3271 -0.37230 2011 11 28 55893 0.1528 0.3261 -0.37299 2011 11 29 55894 0.1522 0.3252 -0.37377 2011 11 30 55895 0.1516 0.3243 -0.37464 2011 12 1 55896 0.1509 0.3233 -0.37559 2011 12 2 55897 0.1502 0.3224 -0.37659 2011 12 3 55898 0.1496 0.3215 -0.37758 2011 12 4 55899 0.1489 0.3206 -0.37854 2011 12 5 55900 0.1482 0.3197 -0.37942 2011 12 6 55901 0.1475 0.3189 -0.38019 2011 12 7 55902 0.1467 0.3180 -0.38084 2011 12 8 55903 0.1460 0.3172 -0.38137 2011 12 9 55904 0.1453 0.3164 -0.38179 2011 12 10 55905 0.1445 0.3155 -0.38214 2011 12 11 55906 0.1437 0.3147 -0.38247 2011 12 12 55907 0.1430 0.3139 -0.38282 2011 12 13 55908 0.1422 0.3132 -0.38327 2011 12 14 55909 0.1414 0.3124 -0.38384 2011 12 15 55910 0.1406 0.3117 -0.38458 2011 12 16 55911 0.1398 0.3109 -0.38547 2011 12 17 55912 0.1389 0.3102 -0.38648 2011 12 18 55913 0.1381 0.3095 -0.38755 2011 12 19 55914 0.1373 0.3088 -0.38859 2011 12 20 55915 0.1364 0.3081 -0.38953 2011 12 21 55916 0.1356 0.3074 -0.39028 2011 12 22 55917 0.1347 0.3068 -0.39085 2011 12 23 55918 0.1339 0.3062 -0.39124 2011 12 24 55919 0.1330 0.3055 -0.39155 2011 12 25 55920 0.1321 0.3049 -0.39185 2011 12 26 55921 0.1312 0.3043 -0.39222 2011 12 27 55922 0.1304 0.3037 -0.39272 2011 12 28 55923 0.1295 0.3032 -0.39333 2011 12 29 55924 0.1286 0.3026 -0.39401 2011 12 30 55925 0.1277 0.3021 -0.39472 2011 12 31 55926 0.1268 0.3016 -0.39540 2012 1 1 55927 0.1259 0.3010 -0.39602 2012 1 2 55928 0.1250 0.3006 -0.39655 2012 1 3 55929 0.1240 0.3001 -0.39696 2012 1 4 55930 0.1231 0.2996 -0.39726 2012 1 5 55931 0.1222 0.2992 -0.39745 2012 1 6 55932 0.1213 0.2987 -0.39759 2012 1 7 55933 0.1204 0.2983 -0.39771 2012 1 8 55934 0.1194 0.2979 -0.39789 2012 1 9 55935 0.1185 0.2975 -0.39818 2012 1 10 55936 0.1176 0.2971 -0.39865 2012 1 11 55937 0.1167 0.2968 -0.39932 2012 1 12 55938 0.1157 0.2964 -0.40018 2012 1 13 55939 0.1148 0.2961 -0.40120 2012 1 14 55940 0.1139 0.2958 -0.40231 2012 1 15 55941 0.1130 0.2955 -0.40342 2012 1 16 55942 0.1120 0.2952 -0.40446 2012 1 17 55943 0.1111 0.2949 -0.40536 2012 1 18 55944 0.1102 0.2946 -0.40609 2012 1 19 55945 0.1093 0.2944 -0.40667 2012 1 20 55946 0.1083 0.2942 -0.40713 2012 1 21 55947 0.1074 0.2939 -0.40756 2012 1 22 55948 0.1065 0.2937 -0.40805 2012 1 23 55949 0.1056 0.2936 -0.40866 2012 1 24 55950 0.1047 0.2934 -0.40940 2012 1 25 55951 0.1038 0.2932 -0.41024 2012 1 26 55952 0.1029 0.2931 -0.41116 2012 1 27 55953 0.1020 0.2929 -0.41211 2012 1 28 55954 0.1011 0.2928 -0.41308 2012 1 29 55955 0.1002 0.2927 -0.41397 2012 1 30 55956 0.0993 0.2926 -0.41478 2012 1 31 55957 0.0984 0.2925 -0.41546 2012 2 1 55958 0.0976 0.2925 -0.41601 2012 2 2 55959 0.0967 0.2924 -0.41644 2012 2 3 55960 0.0958 0.2924 -0.41677 2012 2 4 55961 0.0950 0.2924 -0.41709 2012 2 5 55962 0.0941 0.2923 -0.41750 2012 2 6 55963 0.0933 0.2923 -0.41810 2012 2 7 55964 0.0925 0.2924 -0.41899 2012 2 8 55965 0.0916 0.2924 -0.42012 2012 2 9 55966 0.0908 0.2924 -0.42152 2012 2 10 55967 0.0900 0.2925 -0.42307 2012 2 11 55968 0.0892 0.2925 -0.42462 2012 2 12 55969 0.0884 0.2926 -0.42608 2012 2 13 55970 0.0876 0.2927 -0.42738 2012 2 14 55971 0.0868 0.2928 -0.42844 2012 2 15 55972 0.0860 0.2929 -0.42928 2012 2 16 55973 0.0852 0.2930 -0.42994 2012 2 17 55974 0.0845 0.2931 -0.43055 2012 2 18 55975 0.0837 0.2933 -0.43118 2012 2 19 55976 0.0830 0.2934 -0.43192 2012 2 20 55977 0.0822 0.2936 -0.43283 2012 2 21 55978 0.0815 0.2938 -0.43388 2012 2 22 55979 0.0808 0.2939 -0.43502 2012 2 23 55980 0.0801 0.2941 -0.43624 2012 2 24 55981 0.0794 0.2943 -0.43748 2012 2 25 55982 0.0787 0.2945 -0.43868 2012 2 26 55983 0.0780 0.2948 -0.43983 2012 2 27 55984 0.0774 0.2950 -0.44089 2012 2 28 55985 0.0767 0.2952 -0.44181 2012 2 29 55986 0.0761 0.2955 -0.44265 2012 3 1 55987 0.0754 0.2958 -0.44344 2012 3 2 55988 0.0748 0.2960 -0.44426 2012 3 3 55989 0.0742 0.2963 -0.44520 2012 3 4 55990 0.0736 0.2966 -0.44627 2012 3 5 55991 0.0730 0.2969 -0.44754 2012 3 6 55992 0.0724 0.2972 -0.44902 2012 3 7 55993 0.0718 0.2975 -0.45072 2012 3 8 55994 0.0713 0.2978 -0.45259 2012 3 9 55995 0.0707 0.2981 -0.45451 2012 3 10 55996 0.0702 0.2984 -0.45641 2012 3 11 55997 0.0697 0.2988 -0.45815 2012 3 12 55998 0.0692 0.2991 -0.45965 2012 3 13 55999 0.0687 0.2995 -0.46088 2012 3 14 56000 0.0682 0.2998 -0.46189 2012 3 15 56001 0.0677 0.3002 -0.46271 2012 3 16 56002 0.0672 0.3006 -0.46347 2012 3 17 56003 0.0668 0.3009 -0.46433 2012 3 18 56004 0.0663 0.3013 -0.46524 2012 3 19 56005 0.0659 0.3017 -0.46626 2012 3 20 56006 0.0655 0.3021 -0.46738 2012 3 21 56007 0.0651 0.3025 -0.46858 2012 3 22 56008 0.0647 0.3029 -0.46977 2012 3 23 56009 0.0643 0.3033 -0.47084 2012 3 24 56010 0.0639 0.3037 -0.47182 2012 3 25 56011 0.0636 0.3041 -0.47264 2012 3 26 56012 0.0632 0.3045 -0.47332 2012 3 27 56013 0.0629 0.3049 -0.47395 2012 3 28 56014 0.0626 0.3054 -0.47453 2012 3 29 56015 0.0622 0.3058 -0.47510 2012 3 30 56016 0.0619 0.3062 -0.47568 2012 3 31 56017 0.0617 0.3067 -0.47634 2012 4 1 56018 0.0614 0.3071 -0.47717 2012 4 2 56019 0.0611 0.3075 -0.47818 2012 4 3 56020 0.0609 0.3080 -0.47943 2012 4 4 56021 0.0606 0.3084 -0.48094 2012 4 5 56022 0.0604 0.3088 -0.48260 2012 4 6 56023 0.0602 0.3093 -0.48432 2012 4 7 56024 0.0600 0.3097 -0.48603 2012 4 8 56025 0.0598 0.3102 -0.48756 2012 4 9 56026 0.0596 0.3106 -0.48885 2012 4 10 56027 0.0594 0.3111 -0.48995 2012 4 11 56028 0.0593 0.3115 -0.49093 2012 4 12 56029 0.0591 0.3120 -0.49190 2012 4 13 56030 0.0590 0.3124 -0.49295 2012 4 14 56031 0.0589 0.3129 -0.49413 2012 4 15 56032 0.0588 0.3133 -0.49541 2012 4 16 56033 0.0587 0.3138 -0.49680 2012 4 17 56034 0.0586 0.3142 -0.49821 2012 4 18 56035 0.0585 0.3147 -0.49960 2012 4 19 56036 0.0584 0.3151 -0.50093 2012 4 20 56037 0.0583 0.3156 -0.50217 2012 4 21 56038 0.0583 0.3160 -0.50334 2012 4 22 56039 0.0583 0.3165 -0.50435 2012 4 23 56040 0.0582 0.3169 -0.50521 2012 4 24 56041 0.0582 0.3173 -0.50601 2012 4 25 56042 0.0582 0.3178 -0.50674 2012 4 26 56043 0.0582 0.3182 -0.50740 2012 4 27 56044 0.0582 0.3187 -0.50811 2012 4 28 56045 0.0582 0.3191 -0.50894 2012 4 29 56046 0.0583 0.3195 -0.50990 2012 4 30 56047 0.0583 0.3199 -0.51108 2012 5 1 56048 0.0584 0.3204 -0.51249 2012 5 2 56049 0.0584 0.3208 -0.51406 2012 5 3 56050 0.0585 0.3212 -0.51570 2012 5 4 56051 0.0586 0.3216 -0.51731 2012 5 5 56052 0.0586 0.3220 -0.51879 2012 5 6 56053 0.0587 0.3224 -0.52011 2012 5 7 56054 0.0588 0.3229 -0.52123 2012 5 8 56055 0.0589 0.3233 -0.52218 2012 5 9 56056 0.0591 0.3236 -0.52304 2012 5 10 56057 0.0592 0.3240 -0.52390 2012 5 11 56058 0.0593 0.3244 -0.52481 2012 5 12 56059 0.0594 0.3248 -0.52579 2012 5 13 56060 0.0596 0.3252 -0.52679 2012 5 14 56061 0.0597 0.3256 -0.52776 2012 5 15 56062 0.0599 0.3259 -0.52864 2012 5 16 56063 0.0601 0.3263 -0.52944 2012 5 17 56064 0.0602 0.3267 -0.53016 2012 5 18 56065 0.0604 0.3270 -0.53079 2012 5 19 56066 0.0606 0.3274 -0.53129 2012 5 20 56067 0.0608 0.3277 -0.53169 2012 5 21 56068 0.0610 0.3281 -0.53197 2012 5 22 56069 0.0612 0.3284 -0.53213 2012 5 23 56070 0.0614 0.3287 -0.53222 2012 5 24 56071 0.0616 0.3291 -0.53231 2012 5 25 56072 0.0618 0.3294 -0.53253 2012 5 26 56073 0.0621 0.3297 -0.53284 2012 5 27 56074 0.0623 0.3300 -0.53336 2012 5 28 56075 0.0625 0.3303 -0.53413 2012 5 29 56076 0.0628 0.3306 -0.53504 2012 5 30 56077 0.0630 0.3309 -0.53606 2012 5 31 56078 0.0632 0.3312 -0.53698 2012 6 1 56079 0.0635 0.3315 -0.53779 2012 6 2 56080 0.0637 0.3318 -0.53837 2012 6 3 56081 0.0640 0.3320 -0.53876 2012 6 4 56082 0.0642 0.3323 -0.53901 2012 6 5 56083 0.0645 0.3326 -0.53916 2012 6 6 56084 0.0648 0.3328 -0.53933 2012 6 7 56085 0.0650 0.3331 -0.53958 2012 6 8 56086 0.0653 0.3333 -0.53991 2012 6 9 56087 0.0656 0.3335 -0.54029 2012 6 10 56088 0.0658 0.3338 -0.54069 2012 6 11 56089 0.0661 0.3340 -0.54112 2012 6 12 56090 0.0664 0.3342 -0.54150 2012 6 13 56091 0.0666 0.3344 -0.54181 2012 6 14 56092 0.0669 0.3346 -0.54203 2012 6 15 56093 0.0672 0.3348 -0.54209 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) 55709 -66.26 0.49 -11.56 0.21 55710 -66.69 0.49 -11.47 0.21 55711 -67.12 0.41 -11.55 0.17 55712 -67.41 0.31 -11.70 0.34 55713 -67.54 0.18 -11.79 0.11 55714 -67.50 0.18 -11.79 0.11 55715 -67.31 0.18 -11.76 0.11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55709 -0.280 0.195 -0.096 0.210 55710 -0.285 0.195 -0.089 0.210 55711 -0.265 0.163 -0.107 0.170 55712 -0.232 0.123 -0.116 0.340 55713 -0.206 0.072 -0.108 0.110 55714 -0.191 0.072 -0.104 0.110 55715 -0.179 0.072 -0.117 0.110 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).