********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 June 2011 Vol. XXIV No. 023 ______________________________________________________________________ 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 3 55715 -.01302 .00009 0.40578 .00009 -0.278889 0.000016 11 6 4 55716 -.01156 .00009 0.40746 .00010 -0.279402 0.000013 11 6 5 55717 -.00976 .00009 0.40926 .00009 -0.280066 0.000011 11 6 6 55718 -.00773 .00009 0.41081 .00009 -0.280887 0.000010 11 6 7 55719 -.00555 .00009 0.41230 .00009 -0.281873 0.000010 11 6 8 55720 -.00321 .00010 0.41398 .00009 -0.283006 0.000010 11 6 9 55721 -.00091 .00010 0.41576 .00009 -0.284192 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 = 0.0857 - 0.0367 cos A + 0.1148 sin A - 0.0479 cos C - 0.0269 sin C y = 0.3342 + 0.1041 cos A + 0.0333 sin A - 0.0269 cos C + 0.0479 sin C UT1-UTC = -0.2686 - 0.00066 (MJD - 55729) - (UT2-UT1) where A = 2*pi*(MJD-55721)/365.25 and C = 2*pi*(MJD-55721)/435. TAI-UTC(MJD 55722) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55721)**0.80 S t = 0.00025 (MJD-55721)**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 10 55722 0.0011 0.4174 -0.28535 2011 6 11 55723 0.0029 0.4190 -0.28638 2011 6 12 55724 0.0047 0.4204 -0.28723 2011 6 13 55725 0.0063 0.4217 -0.28787 2011 6 14 55726 0.0080 0.4229 -0.28830 2011 6 15 55727 0.0097 0.4240 -0.28855 2011 6 16 55728 0.0113 0.4251 -0.28870 2011 6 17 55729 0.0130 0.4261 -0.28885 2011 6 18 55730 0.0147 0.4272 -0.28908 2011 6 19 55731 0.0164 0.4282 -0.28942 2011 6 20 55732 0.0180 0.4291 -0.28987 2011 6 21 55733 0.0197 0.4301 -0.29039 2011 6 22 55734 0.0213 0.4309 -0.29096 2011 6 23 55735 0.0230 0.4318 -0.29156 2011 6 24 55736 0.0247 0.4326 -0.29211 2011 6 25 55737 0.0263 0.4334 -0.29259 2011 6 26 55738 0.0280 0.4342 -0.29296 2011 6 27 55739 0.0297 0.4349 -0.29319 2011 6 28 55740 0.0314 0.4357 -0.29330 2011 6 29 55741 0.0331 0.4364 -0.29329 2011 6 30 55742 0.0348 0.4370 -0.29322 2011 7 1 55743 0.0365 0.4377 -0.29317 2011 7 2 55744 0.0382 0.4383 -0.29325 2011 7 3 55745 0.0399 0.4388 -0.29351 2011 7 4 55746 0.0417 0.4394 -0.29400 2011 7 5 55747 0.0434 0.4399 -0.29467 2011 7 6 55748 0.0451 0.4404 -0.29547 2011 7 7 55749 0.0468 0.4409 -0.29629 2011 7 8 55750 0.0486 0.4414 -0.29703 2011 7 9 55751 0.0503 0.4418 -0.29760 2011 7 10 55752 0.0520 0.4422 -0.29796 2011 7 11 55753 0.0538 0.4425 -0.29809 2011 7 12 55754 0.0555 0.4429 -0.29803 2011 7 13 55755 0.0573 0.4432 -0.29786 2011 7 14 55756 0.0590 0.4435 -0.29766 2011 7 15 55757 0.0607 0.4438 -0.29750 2011 7 16 55758 0.0625 0.4440 -0.29744 2011 7 17 55759 0.0642 0.4442 -0.29747 2011 7 18 55760 0.0659 0.4444 -0.29758 2011 7 19 55761 0.0677 0.4446 -0.29773 2011 7 20 55762 0.0694 0.4447 -0.29786 2011 7 21 55763 0.0711 0.4448 -0.29794 2011 7 22 55764 0.0728 0.4449 -0.29793 2011 7 23 55765 0.0746 0.4450 -0.29782 2011 7 24 55766 0.0763 0.4450 -0.29758 2011 7 25 55767 0.0780 0.4450 -0.29724 2011 7 26 55768 0.0797 0.4450 -0.29682 2011 7 27 55769 0.0814 0.4450 -0.29636 2011 7 28 55770 0.0831 0.4449 -0.29593 2011 7 29 55771 0.0848 0.4448 -0.29560 2011 7 30 55772 0.0864 0.4447 -0.29544 2011 7 31 55773 0.0881 0.4445 -0.29549 2011 8 1 55774 0.0898 0.4444 -0.29575 2011 8 2 55775 0.0914 0.4442 -0.29619 2011 8 3 55776 0.0930 0.4440 -0.29669 2011 8 4 55777 0.0947 0.4437 -0.29715 2011 8 5 55778 0.0963 0.4435 -0.29747 2011 8 6 55779 0.0979 0.4432 -0.29758 2011 8 7 55780 0.0995 0.4429 -0.29748 2011 8 8 55781 0.1011 0.4425 -0.29721 2011 8 9 55782 0.1027 0.4422 -0.29685 2011 8 10 55783 0.1043 0.4418 -0.29648 2011 8 11 55784 0.1058 0.4414 -0.29616 2011 8 12 55785 0.1074 0.4410 -0.29595 2011 8 13 55786 0.1089 0.4405 -0.29587 2011 8 14 55787 0.1104 0.4401 -0.29591 2011 8 15 55788 0.1119 0.4396 -0.29604 2011 8 16 55789 0.1134 0.4391 -0.29621 2011 8 17 55790 0.1149 0.4385 -0.29638 2011 8 18 55791 0.1164 0.4380 -0.29649 2011 8 19 55792 0.1178 0.4374 -0.29651 2011 8 20 55793 0.1192 0.4368 -0.29643 2011 8 21 55794 0.1207 0.4362 -0.29625 2011 8 22 55795 0.1221 0.4356 -0.29599 2011 8 23 55796 0.1234 0.4349 -0.29568 2011 8 24 55797 0.1248 0.4342 -0.29539 2011 8 25 55798 0.1262 0.4335 -0.29517 2011 8 26 55799 0.1275 0.4328 -0.29512 2011 8 27 55800 0.1288 0.4321 -0.29529 2011 8 28 55801 0.1301 0.4314 -0.29572 2011 8 29 55802 0.1314 0.4306 -0.29639 2011 8 30 55803 0.1327 0.4298 -0.29722 2011 8 31 55804 0.1339 0.4290 -0.29807 2011 9 1 55805 0.1352 0.4282 -0.29884 2011 9 2 55806 0.1364 0.4273 -0.29941 2011 9 3 55807 0.1376 0.4265 -0.29976 2011 9 4 55808 0.1387 0.4256 -0.29992 2011 9 5 55809 0.1399 0.4247 -0.29995 2011 9 6 55810 0.1410 0.4238 -0.29995 2011 9 7 55811 0.1422 0.4229 -0.29999 2011 9 8 55812 0.1433 0.4219 -0.30014 2011 9 9 55813 0.1443 0.4210 -0.30041 2011 9 10 55814 0.1454 0.4200 -0.30080 2011 9 11 55815 0.1464 0.4191 -0.30130 2011 9 12 55816 0.1474 0.4181 -0.30186 2011 9 13 55817 0.1484 0.4171 -0.30243 2011 9 14 55818 0.1494 0.4160 -0.30297 2011 9 15 55819 0.1504 0.4150 -0.30343 2011 9 16 55820 0.1513 0.4140 -0.30380 2011 9 17 55821 0.1522 0.4129 -0.30406 2011 9 18 55822 0.1531 0.4118 -0.30425 2011 9 19 55823 0.1539 0.4107 -0.30437 2011 9 20 55824 0.1548 0.4096 -0.30450 2011 9 21 55825 0.1556 0.4085 -0.30467 2011 9 22 55826 0.1564 0.4074 -0.30498 2011 9 23 55827 0.1572 0.4063 -0.30547 2011 9 24 55828 0.1579 0.4052 -0.30621 2011 9 25 55829 0.1587 0.4040 -0.30721 2011 9 26 55830 0.1594 0.4029 -0.30852 2011 9 27 55831 0.1601 0.4017 -0.30994 2011 9 28 55832 0.1607 0.4005 -0.31135 2011 9 29 55833 0.1614 0.3994 -0.31262 2011 9 30 55834 0.1620 0.3982 -0.31366 2011 10 1 55835 0.1626 0.3970 -0.31448 2011 10 2 55836 0.1631 0.3958 -0.31512 2011 10 3 55837 0.1637 0.3946 -0.31570 2011 10 4 55838 0.1642 0.3934 -0.31628 2011 10 5 55839 0.1647 0.3921 -0.31694 2011 10 6 55840 0.1652 0.3909 -0.31771 2011 10 7 55841 0.1657 0.3897 -0.31859 2011 10 8 55842 0.1661 0.3884 -0.31955 2011 10 9 55843 0.1665 0.3872 -0.32058 2011 10 10 55844 0.1669 0.3860 -0.32162 2011 10 11 55845 0.1673 0.3847 -0.32263 2011 10 12 55846 0.1676 0.3835 -0.32357 2011 10 13 55847 0.1679 0.3822 -0.32441 2011 10 14 55848 0.1682 0.3809 -0.32514 2011 10 15 55849 0.1685 0.3797 -0.32577 2011 10 16 55850 0.1688 0.3784 -0.32634 2011 10 17 55851 0.1690 0.3771 -0.32686 2011 10 18 55852 0.1692 0.3759 -0.32741 2011 10 19 55853 0.1694 0.3746 -0.32805 2011 10 20 55854 0.1695 0.3733 -0.32882 2011 10 21 55855 0.1697 0.3721 -0.32979 2011 10 22 55856 0.1698 0.3708 -0.33099 2011 10 23 55857 0.1699 0.3695 -0.33240 2011 10 24 55858 0.1700 0.3683 -0.33397 2011 10 25 55859 0.1700 0.3670 -0.33559 2011 10 26 55860 0.1701 0.3657 -0.33712 2011 10 27 55861 0.1701 0.3645 -0.33848 2011 10 28 55862 0.1700 0.3632 -0.33961 2011 10 29 55863 0.1700 0.3620 -0.34053 2011 10 30 55864 0.1700 0.3607 -0.34133 2011 10 31 55865 0.1699 0.3595 -0.34209 2011 11 1 55866 0.1698 0.3582 -0.34289 2011 11 2 55867 0.1697 0.3570 -0.34379 2011 11 3 55868 0.1695 0.3557 -0.34478 2011 11 4 55869 0.1694 0.3545 -0.34585 2011 11 5 55870 0.1692 0.3532 -0.34696 2011 11 6 55871 0.1690 0.3520 -0.34807 2011 11 7 55872 0.1688 0.3508 -0.34915 2011 11 8 55873 0.1685 0.3496 -0.35016 2011 11 9 55874 0.1683 0.3483 -0.35106 2011 11 10 55875 0.1680 0.3471 -0.35185 2011 11 11 55876 0.1677 0.3459 -0.35252 2011 11 12 55877 0.1674 0.3447 -0.35311 2011 11 13 55878 0.1670 0.3436 -0.35364 2011 11 14 55879 0.1667 0.3424 -0.35417 2011 11 15 55880 0.1663 0.3412 -0.35476 2011 11 16 55881 0.1659 0.3400 -0.35545 2011 11 17 55882 0.1655 0.3389 -0.35630 2011 11 18 55883 0.1651 0.3377 -0.35733 2011 11 19 55884 0.1646 0.3366 -0.35855 2011 11 20 55885 0.1642 0.3354 -0.35993 2011 11 21 55886 0.1637 0.3343 -0.36137 2011 11 22 55887 0.1632 0.3332 -0.36279 2011 11 23 55888 0.1627 0.3321 -0.36409 2011 11 24 55889 0.1621 0.3310 -0.36519 2011 11 25 55890 0.1616 0.3299 -0.36609 2011 11 26 55891 0.1610 0.3288 -0.36683 2011 11 27 55892 0.1605 0.3278 -0.36751 2011 11 28 55893 0.1599 0.3267 -0.36819 2011 11 29 55894 0.1593 0.3257 -0.36896 2011 11 30 55895 0.1586 0.3246 -0.36982 2011 12 1 55896 0.1580 0.3236 -0.37076 2011 12 2 55897 0.1573 0.3226 -0.37173 2011 12 3 55898 0.1567 0.3216 -0.37271 2011 12 4 55899 0.1560 0.3206 -0.37363 2011 12 5 55900 0.1553 0.3196 -0.37448 2011 12 6 55901 0.1546 0.3187 -0.37521 2011 12 7 55902 0.1539 0.3177 -0.37581 2011 12 8 55903 0.1532 0.3168 -0.37629 2011 12 9 55904 0.1524 0.3158 -0.37664 2011 12 10 55905 0.1517 0.3149 -0.37692 2011 12 11 55906 0.1509 0.3140 -0.37716 2011 12 12 55907 0.1501 0.3131 -0.37742 2011 12 13 55908 0.1494 0.3122 -0.37776 2011 12 14 55909 0.1486 0.3114 -0.37821 2011 12 15 55910 0.1478 0.3105 -0.37882 2011 12 16 55911 0.1469 0.3097 -0.37959 2011 12 17 55912 0.1461 0.3089 -0.38048 2011 12 18 55913 0.1453 0.3081 -0.38144 2011 12 19 55914 0.1444 0.3073 -0.38240 2011 12 20 55915 0.1436 0.3065 -0.38327 2011 12 21 55916 0.1427 0.3057 -0.38399 2011 12 22 55917 0.1419 0.3050 -0.38453 2011 12 23 55918 0.1410 0.3042 -0.38494 2011 12 24 55919 0.1401 0.3035 -0.38526 2011 12 25 55920 0.1392 0.3028 -0.38560 2011 12 26 55921 0.1383 0.3021 -0.38602 2011 12 27 55922 0.1374 0.3014 -0.38657 2011 12 28 55923 0.1365 0.3008 -0.38724 2011 12 29 55924 0.1356 0.3001 -0.38801 2011 12 30 55925 0.1346 0.2995 -0.38883 2011 12 31 55926 0.1337 0.2988 -0.38965 2012 1 1 55927 0.1328 0.2982 -0.39041 2012 1 2 55928 0.1318 0.2976 -0.39110 2012 1 3 55929 0.1309 0.2971 -0.39167 2012 1 4 55930 0.1300 0.2965 -0.39213 2012 1 5 55931 0.1290 0.2960 -0.39248 2012 1 6 55932 0.1281 0.2954 -0.39276 2012 1 7 55933 0.1271 0.2949 -0.39301 2012 1 8 55934 0.1261 0.2944 -0.39327 2012 1 9 55935 0.1252 0.2939 -0.39362 2012 1 10 55936 0.1242 0.2935 -0.39412 2012 1 11 55937 0.1233 0.2930 -0.39480 2012 1 12 55938 0.1223 0.2926 -0.39568 2012 1 13 55939 0.1213 0.2921 -0.39673 2012 1 14 55940 0.1204 0.2917 -0.39790 2012 1 15 55941 0.1194 0.2913 -0.39910 2012 1 16 55942 0.1184 0.2910 -0.40022 2012 1 17 55943 0.1175 0.2906 -0.40120 2012 1 18 55944 0.1165 0.2902 -0.40197 2012 1 19 55945 0.1155 0.2899 -0.40256 2012 1 20 55946 0.1145 0.2896 -0.40300 2012 1 21 55947 0.1136 0.2893 -0.40340 2012 1 22 55948 0.1126 0.2890 -0.40386 2012 1 23 55949 0.1117 0.2887 -0.40449 2012 1 24 55950 0.1107 0.2885 -0.40534 2012 1 25 55951 0.1097 0.2882 -0.40634 2012 1 26 55952 0.1088 0.2880 -0.40746 2012 1 27 55953 0.1078 0.2878 -0.40862 2012 1 28 55954 0.1069 0.2876 -0.40970 2012 1 29 55955 0.1059 0.2874 -0.41067 2012 1 30 55956 0.1050 0.2872 -0.41153 2012 1 31 55957 0.1041 0.2870 -0.41221 2012 2 1 55958 0.1031 0.2869 -0.41273 2012 2 2 55959 0.1022 0.2868 -0.41311 2012 2 3 55960 0.1013 0.2866 -0.41343 2012 2 4 55961 0.1003 0.2865 -0.41376 2012 2 5 55962 0.0994 0.2865 -0.41417 2012 2 6 55963 0.0985 0.2864 -0.41475 2012 2 7 55964 0.0976 0.2863 -0.41554 2012 2 8 55965 0.0967 0.2863 -0.41656 2012 2 9 55966 0.0958 0.2862 -0.41779 2012 2 10 55967 0.0949 0.2862 -0.41920 2012 2 11 55968 0.0941 0.2862 -0.42066 2012 2 12 55969 0.0932 0.2862 -0.42210 2012 2 13 55970 0.0923 0.2862 -0.42341 2012 2 14 55971 0.0915 0.2862 -0.42451 2012 2 15 55972 0.0906 0.2863 -0.42546 2012 2 16 55973 0.0898 0.2863 -0.42630 2012 2 17 55974 0.0889 0.2864 -0.42713 2012 2 18 55975 0.0881 0.2865 -0.42808 2012 2 19 55976 0.0873 0.2866 -0.42913 2012 2 20 55977 0.0865 0.2867 -0.43035 2012 2 21 55978 0.0857 0.2868 -0.43169 2012 2 22 55979 0.0849 0.2869 -0.43312 2012 2 23 55980 0.0841 0.2870 -0.43457 2012 2 24 55981 0.0833 0.2872 -0.43597 2012 2 25 55982 0.0825 0.2873 -0.43730 2012 2 26 55983 0.0818 0.2875 -0.43850 2012 2 27 55984 0.0810 0.2877 -0.43954 2012 2 28 55985 0.0803 0.2879 -0.44039 2012 2 29 55986 0.0796 0.2881 -0.44109 2012 3 1 55987 0.0788 0.2883 -0.44161 2012 3 2 55988 0.0781 0.2885 -0.44207 2012 3 3 55989 0.0774 0.2887 -0.44260 2012 3 4 55990 0.0768 0.2890 -0.44320 2012 3 5 55991 0.0761 0.2892 -0.44397 2012 3 6 55992 0.0754 0.2895 -0.44495 2012 3 7 55993 0.0748 0.2897 -0.44619 2012 3 8 55994 0.0741 0.2900 -0.44760 2012 3 9 55995 0.0735 0.2903 -0.44905 2012 3 10 55996 0.0729 0.2906 -0.45047 2012 3 11 55997 0.0722 0.2909 -0.45171 2012 3 12 55998 0.0716 0.2912 -0.45275 2012 3 13 55999 0.0710 0.2915 -0.45364 2012 3 14 56000 0.0705 0.2918 -0.45441 2012 3 15 56001 0.0699 0.2921 -0.45512 2012 3 16 56002 0.0693 0.2925 -0.45584 2012 3 17 56003 0.0688 0.2928 -0.45663 2012 3 18 56004 0.0683 0.2932 -0.45757 2012 3 19 56005 0.0678 0.2935 -0.45862 2012 3 20 56006 0.0672 0.2939 -0.45978 2012 3 21 56007 0.0667 0.2942 -0.46106 2012 3 22 56008 0.0663 0.2946 -0.46235 2012 3 23 56009 0.0658 0.2950 -0.46360 2012 3 24 56010 0.0653 0.2954 -0.46482 2012 3 25 56011 0.0649 0.2958 -0.46592 2012 3 26 56012 0.0644 0.2962 -0.46687 2012 3 27 56013 0.0640 0.2966 -0.46771 2012 3 28 56014 0.0636 0.2970 -0.46849 2012 3 29 56015 0.0632 0.2974 -0.46925 2012 3 30 56016 0.0628 0.2978 -0.47007 2012 3 31 56017 0.0624 0.2982 -0.47102 2012 4 1 56018 0.0621 0.2986 -0.47211 2012 4 2 56019 0.0617 0.2990 -0.47341 2012 4 3 56020 0.0614 0.2995 -0.47492 2012 4 4 56021 0.0610 0.2999 -0.47662 2012 4 5 56022 0.0607 0.3003 -0.47845 2012 4 6 56023 0.0604 0.3008 -0.48032 2012 4 7 56024 0.0601 0.3012 -0.48217 2012 4 8 56025 0.0598 0.3017 -0.48383 2012 4 9 56026 0.0596 0.3021 -0.48525 2012 4 10 56027 0.0593 0.3025 -0.48651 2012 4 11 56028 0.0590 0.3030 -0.48763 2012 4 12 56029 0.0588 0.3034 -0.48867 2012 4 13 56030 0.0586 0.3039 -0.48976 2012 4 14 56031 0.0584 0.3044 -0.49095 2012 4 15 56032 0.0582 0.3048 -0.49223 2012 4 16 56033 0.0580 0.3053 -0.49362 2012 4 17 56034 0.0578 0.3057 -0.49510 2012 4 18 56035 0.0576 0.3062 -0.49658 2012 4 19 56036 0.0575 0.3066 -0.49800 2012 4 20 56037 0.0573 0.3071 -0.49931 2012 4 21 56038 0.0572 0.3075 -0.50048 2012 4 22 56039 0.0571 0.3080 -0.50156 2012 4 23 56040 0.0569 0.3085 -0.50252 2012 4 24 56041 0.0568 0.3089 -0.50337 2012 4 25 56042 0.0567 0.3094 -0.50415 2012 4 26 56043 0.0567 0.3098 -0.50490 2012 4 27 56044 0.0566 0.3103 -0.50569 2012 4 28 56045 0.0565 0.3107 -0.50655 2012 4 29 56046 0.0565 0.3112 -0.50751 2012 4 30 56047 0.0564 0.3116 -0.50859 2012 5 1 56048 0.0564 0.3121 -0.50977 2012 5 2 56049 0.0564 0.3125 -0.51110 2012 5 3 56050 0.0563 0.3130 -0.51253 2012 5 4 56051 0.0563 0.3134 -0.51397 2012 5 5 56052 0.0563 0.3139 -0.51531 2012 5 6 56053 0.0564 0.3143 -0.51649 2012 5 7 56054 0.0564 0.3147 -0.51747 2012 5 8 56055 0.0564 0.3152 -0.51824 2012 5 9 56056 0.0564 0.3156 -0.51889 2012 5 10 56057 0.0565 0.3160 -0.51954 2012 5 11 56058 0.0565 0.3164 -0.52031 2012 5 12 56059 0.0566 0.3169 -0.52114 2012 5 13 56060 0.0567 0.3173 -0.52211 2012 5 14 56061 0.0567 0.3177 -0.52319 2012 5 15 56062 0.0568 0.3181 -0.52426 2012 5 16 56063 0.0569 0.3185 -0.52528 2012 5 17 56064 0.0570 0.3189 -0.52609 2012 5 18 56065 0.0571 0.3193 -0.52674 2012 5 19 56066 0.0572 0.3197 -0.52715 2012 5 20 56067 0.0574 0.3201 -0.52743 2012 5 21 56068 0.0575 0.3205 -0.52762 2012 5 22 56069 0.0576 0.3209 -0.52774 2012 5 23 56070 0.0578 0.3213 -0.52787 2012 5 24 56071 0.0579 0.3216 -0.52803 2012 5 25 56072 0.0580 0.3220 -0.52825 2012 5 26 56073 0.0582 0.3224 -0.52856 2012 5 27 56074 0.0584 0.3227 -0.52898 2012 5 28 56075 0.0585 0.3231 -0.52960 2012 5 29 56076 0.0587 0.3234 -0.53037 2012 5 30 56077 0.0589 0.3238 -0.53125 2012 5 31 56078 0.0591 0.3241 -0.53219 2012 6 1 56079 0.0592 0.3245 -0.53304 2012 6 2 56080 0.0594 0.3248 -0.53373 2012 6 3 56081 0.0596 0.3251 -0.53427 2012 6 4 56082 0.0598 0.3255 -0.53462 2012 6 5 56083 0.0600 0.3258 -0.53484 2012 6 6 56084 0.0602 0.3261 -0.53501 2012 6 7 56085 0.0604 0.3264 -0.53522 2012 6 8 56086 0.0606 0.3267 -0.53552 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) 55695 -65.55 0.38 -11.40 0.34 55696 -66.03 0.28 -11.20 0.34 55697 -66.37 0.28 -11.28 0.34 55698 -66.45 0.14 -11.51 0.10 55699 -66.33 0.13 -11.67 0.10 55700 -66.08 0.13 -11.66 0.10 55701 -65.72 0.13 -11.55 0.10 55702 -65.40 0.11 -11.48 0.10 55703 -65.40 0.11 -11.46 0.10 55704 -65.81 0.11 -11.49 0.10 55705 -66.30 0.74 -11.60 0.34 55706 -66.48 0.63 -11.74 0.19 55707 -66.34 0.63 -11.81 0.19 55708 -66.25 0.63 -11.72 0.19 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55695 -0.312 0.151 -0.212 0.340 55696 -0.314 0.111 -0.203 0.340 55697 -0.313 0.111 -0.187 0.340 55698 -0.310 0.056 -0.161 0.100 55699 -0.307 0.052 -0.155 0.100 55700 -0.306 0.052 -0.176 0.100 55701 -0.298 0.052 -0.198 0.100 55702 -0.282 0.044 -0.226 0.100 55703 -0.264 0.044 -0.209 0.100 55704 -0.260 0.044 -0.149 0.100 55705 -0.267 0.294 -0.100 0.340 55706 -0.280 0.251 -0.082 0.190 55707 -0.297 0.251 -0.096 0.190 55708 -0.329 0.251 -0.096 0.190 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).