********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 7 July 2011 Vol. XXIV No. 027 ______________________________________________________________________ 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 1 55743 0.04375 .00010 0.43555 .00009 -0.290881 0.000015 11 7 2 55744 0.04525 .00009 0.43638 .00009 -0.290646 0.000015 11 7 3 55745 0.04669 .00009 0.43713 .00009 -0.290536 0.000016 11 7 4 55746 0.04836 .00009 0.43791 .00009 -0.290686 0.000007 11 7 5 55747 0.05040 .00010 0.43898 .00009 -0.291075 0.000005 11 7 6 55748 0.05260 .00010 0.44008 .00009 -0.291583 0.000005 11 7 7 55749 0.05511 .00010 0.44085 .00009 -0.292087 0.000003 IERS Final Values MJD x y UT1-UTC " " s 11 5 2 55683 -0.0432 0.3440 -0.24590 11 5 3 55684 -0.0427 0.3467 -0.24685 11 5 4 55685 -0.0424 0.3491 -0.24775 11 5 5 55686 -0.0419 0.3513 -0.24861 11 5 6 55687 -0.0416 0.3535 -0.24941 11 5 7 55688 -0.0415 0.3553 -0.25021 11 5 8 55689 -0.0417 0.3573 -0.25107 11 5 9 55690 -0.0418 0.3590 -0.25209 11 5 10 55691 -0.0412 0.3608 -0.25333 11 5 11 55692 -0.0399 0.3629 -0.25477 11 5 12 55693 -0.0385 0.3654 -0.25640 11 5 13 55694 -0.0366 0.3682 -0.25816 11 5 14 55695 -0.0348 0.3712 -0.25998 11 5 15 55696 -0.0334 0.3740 -0.26178 11 5 16 55697 -0.0326 0.3764 -0.26343 11 5 17 55698 -0.0319 0.3780 -0.26484 11 5 18 55699 -0.0313 0.3800 -0.26601 11 5 19 55700 -0.0307 0.3816 -0.26697 11 5 20 55701 -0.0298 0.3832 -0.26779 11 5 21 55702 -0.0290 0.3848 -0.26857 11 5 22 55703 -0.0281 0.3862 -0.26936 11 5 23 55704 -0.0268 0.3877 -0.27021 11 5 24 55705 -0.0254 0.3892 -0.27110 11 5 25 55706 -0.0237 0.3909 -0.27199 11 5 26 55707 -0.0220 0.3931 -0.27292 11 5 27 55708 -0.0203 0.3956 -0.27391 11 5 28 55709 -0.0190 0.3973 -0.27486 11 5 29 55710 -0.0179 0.3989 -0.27577 11 5 30 55711 -0.0173 0.4007 -0.27659 11 5 31 55712 -0.0165 0.4020 -0.27729 11 6 1 55713 -0.0153 0.4032 -0.27789 _______________________________________________________________________ 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 = 0.0862 + 0.0195 cos A + 0.1211 sin A - 0.0517 cos C - 0.0070 sin C y = 0.3348 + 0.1106 cos A - 0.0170 sin A - 0.0070 cos C + 0.0517 sin C UT1-UTC = -0.2917 - 0.00068 (MJD - 55757) - (UT2-UT1) where A = 2*pi*(MJD-55749)/365.25 and C = 2*pi*(MJD-55749)/435. TAI-UTC(MJD 55750) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55749)**0.80 S t = 0.00025 (MJD-55749)**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 7 8 55750 0.0573 0.4417 -0.29248 2011 7 9 55751 0.0596 0.4424 -0.29270 2011 7 10 55752 0.0618 0.4429 -0.29271 2011 7 11 55753 0.0638 0.4433 -0.29251 2011 7 12 55754 0.0657 0.4437 -0.29217 2011 7 13 55755 0.0675 0.4440 -0.29174 2011 7 14 55756 0.0693 0.4442 -0.29130 2011 7 15 55757 0.0711 0.4444 -0.29091 2011 7 16 55758 0.0729 0.4446 -0.29064 2011 7 17 55759 0.0747 0.4447 -0.29051 2011 7 18 55760 0.0765 0.4448 -0.29046 2011 7 19 55761 0.0782 0.4449 -0.29048 2011 7 20 55762 0.0799 0.4449 -0.29053 2011 7 21 55763 0.0816 0.4449 -0.29057 2011 7 22 55764 0.0833 0.4449 -0.29052 2011 7 23 55765 0.0849 0.4448 -0.29039 2011 7 24 55766 0.0866 0.4447 -0.29017 2011 7 25 55767 0.0882 0.4446 -0.28986 2011 7 26 55768 0.0899 0.4445 -0.28947 2011 7 27 55769 0.0915 0.4443 -0.28905 2011 7 28 55770 0.0931 0.4441 -0.28866 2011 7 29 55771 0.0947 0.4439 -0.28840 2011 7 30 55772 0.0963 0.4436 -0.28833 2011 7 31 55773 0.0979 0.4434 -0.28851 2011 8 1 55774 0.0995 0.4431 -0.28895 2011 8 2 55775 0.1010 0.4427 -0.28958 2011 8 3 55776 0.1026 0.4424 -0.29031 2011 8 4 55777 0.1041 0.4420 -0.29104 2011 8 5 55778 0.1056 0.4417 -0.29164 2011 8 6 55779 0.1072 0.4412 -0.29205 2011 8 7 55780 0.1087 0.4408 -0.29228 2011 8 8 55781 0.1102 0.4404 -0.29235 2011 8 9 55782 0.1116 0.4399 -0.29233 2011 8 10 55783 0.1131 0.4394 -0.29230 2011 8 11 55784 0.1146 0.4389 -0.29232 2011 8 12 55785 0.1160 0.4383 -0.29245 2011 8 13 55786 0.1174 0.4377 -0.29272 2011 8 14 55787 0.1188 0.4372 -0.29313 2011 8 15 55788 0.1202 0.4366 -0.29365 2011 8 16 55789 0.1216 0.4359 -0.29421 2011 8 17 55790 0.1230 0.4353 -0.29477 2011 8 18 55791 0.1243 0.4346 -0.29528 2011 8 19 55792 0.1257 0.4339 -0.29570 2011 8 20 55793 0.1270 0.4332 -0.29602 2011 8 21 55794 0.1283 0.4325 -0.29623 2011 8 22 55795 0.1296 0.4318 -0.29635 2011 8 23 55796 0.1308 0.4310 -0.29641 2011 8 24 55797 0.1321 0.4302 -0.29646 2011 8 25 55798 0.1333 0.4294 -0.29658 2011 8 26 55799 0.1345 0.4286 -0.29684 2011 8 27 55800 0.1357 0.4278 -0.29731 2011 8 28 55801 0.1369 0.4269 -0.29803 2011 8 29 55802 0.1381 0.4261 -0.29897 2011 8 30 55803 0.1392 0.4252 -0.30006 2011 8 31 55804 0.1403 0.4243 -0.30117 2011 9 1 55805 0.1415 0.4234 -0.30217 2011 9 2 55806 0.1425 0.4225 -0.30297 2011 9 3 55807 0.1436 0.4215 -0.30354 2011 9 4 55808 0.1446 0.4206 -0.30392 2011 9 5 55809 0.1457 0.4196 -0.30417 2011 9 6 55810 0.1467 0.4186 -0.30439 2011 9 7 55811 0.1477 0.4176 -0.30466 2011 9 8 55812 0.1486 0.4166 -0.30503 2011 9 9 55813 0.1496 0.4156 -0.30552 2011 9 10 55814 0.1505 0.4145 -0.30613 2011 9 11 55815 0.1514 0.4135 -0.30683 2011 9 12 55816 0.1523 0.4124 -0.30758 2011 9 13 55817 0.1531 0.4113 -0.30834 2011 9 14 55818 0.1540 0.4102 -0.30905 2011 9 15 55819 0.1548 0.4091 -0.30968 2011 9 16 55820 0.1556 0.4080 -0.31021 2011 9 17 55821 0.1564 0.4069 -0.31065 2011 9 18 55822 0.1571 0.4058 -0.31099 2011 9 19 55823 0.1578 0.4046 -0.31128 2011 9 20 55824 0.1585 0.4035 -0.31157 2011 9 21 55825 0.1592 0.4023 -0.31190 2011 9 22 55826 0.1599 0.4012 -0.31234 2011 9 23 55827 0.1605 0.4000 -0.31297 2011 9 24 55828 0.1611 0.3988 -0.31384 2011 9 25 55829 0.1617 0.3976 -0.31497 2011 9 26 55830 0.1623 0.3964 -0.31631 2011 9 27 55831 0.1629 0.3952 -0.31777 2011 9 28 55832 0.1634 0.3940 -0.31920 2011 9 29 55833 0.1639 0.3928 -0.32049 2011 9 30 55834 0.1644 0.3916 -0.32155 2011 10 1 55835 0.1648 0.3903 -0.32239 2011 10 2 55836 0.1653 0.3891 -0.32305 2011 10 3 55837 0.1657 0.3879 -0.32363 2011 10 4 55838 0.1661 0.3866 -0.32423 2011 10 5 55839 0.1664 0.3854 -0.32490 2011 10 6 55840 0.1668 0.3841 -0.32568 2011 10 7 55841 0.1671 0.3829 -0.32657 2011 10 8 55842 0.1674 0.3816 -0.32756 2011 10 9 55843 0.1677 0.3803 -0.32859 2011 10 10 55844 0.1679 0.3791 -0.32965 2011 10 11 55845 0.1682 0.3778 -0.33067 2011 10 12 55846 0.1684 0.3766 -0.33162 2011 10 13 55847 0.1685 0.3753 -0.33247 2011 10 14 55848 0.1687 0.3740 -0.33322 2011 10 15 55849 0.1688 0.3728 -0.33387 2011 10 16 55850 0.1690 0.3715 -0.33444 2011 10 17 55851 0.1691 0.3702 -0.33498 2011 10 18 55852 0.1691 0.3690 -0.33554 2011 10 19 55853 0.1692 0.3677 -0.33618 2011 10 20 55854 0.1692 0.3664 -0.33696 2011 10 21 55855 0.1692 0.3652 -0.33793 2011 10 22 55856 0.1692 0.3639 -0.33913 2011 10 23 55857 0.1691 0.3627 -0.34054 2011 10 24 55858 0.1691 0.3614 -0.34221 2011 10 25 55859 0.1690 0.3602 -0.34392 2011 10 26 55860 0.1689 0.3589 -0.34555 2011 10 27 55861 0.1688 0.3577 -0.34701 2011 10 28 55862 0.1686 0.3564 -0.34824 2011 10 29 55863 0.1685 0.3552 -0.34926 2011 10 30 55864 0.1683 0.3540 -0.35016 2011 10 31 55865 0.1681 0.3527 -0.35103 2011 11 1 55866 0.1678 0.3515 -0.35194 2011 11 2 55867 0.1676 0.3503 -0.35294 2011 11 3 55868 0.1673 0.3491 -0.35404 2011 11 4 55869 0.1670 0.3479 -0.35521 2011 11 5 55870 0.1667 0.3467 -0.35643 2011 11 6 55871 0.1664 0.3455 -0.35765 2011 11 7 55872 0.1661 0.3443 -0.35883 2011 11 8 55873 0.1657 0.3431 -0.35994 2011 11 9 55874 0.1653 0.3420 -0.36094 2011 11 10 55875 0.1649 0.3408 -0.36183 2011 11 11 55876 0.1645 0.3397 -0.36261 2011 11 12 55877 0.1641 0.3385 -0.36329 2011 11 13 55878 0.1636 0.3374 -0.36392 2011 11 14 55879 0.1631 0.3362 -0.36455 2011 11 15 55880 0.1626 0.3351 -0.36523 2011 11 16 55881 0.1621 0.3340 -0.36601 2011 11 17 55882 0.1616 0.3329 -0.36694 2011 11 18 55883 0.1611 0.3318 -0.36806 2011 11 19 55884 0.1605 0.3308 -0.36937 2011 11 20 55885 0.1599 0.3297 -0.37082 2011 11 21 55886 0.1594 0.3286 -0.37235 2011 11 22 55887 0.1587 0.3276 -0.37385 2011 11 23 55888 0.1581 0.3265 -0.37522 2011 11 24 55889 0.1575 0.3255 -0.37640 2011 11 25 55890 0.1568 0.3245 -0.37738 2011 11 26 55891 0.1562 0.3235 -0.37819 2011 11 27 55892 0.1555 0.3225 -0.37894 2011 11 28 55893 0.1548 0.3215 -0.37970 2011 11 29 55894 0.1541 0.3206 -0.38054 2011 11 30 55895 0.1534 0.3196 -0.38148 2011 12 1 55896 0.1527 0.3187 -0.38249 2011 12 2 55897 0.1519 0.3178 -0.38355 2011 12 3 55898 0.1512 0.3168 -0.38460 2011 12 4 55899 0.1504 0.3159 -0.38561 2011 12 5 55900 0.1496 0.3151 -0.38654 2011 12 6 55901 0.1488 0.3142 -0.38737 2011 12 7 55902 0.1480 0.3133 -0.38807 2011 12 8 55903 0.1472 0.3125 -0.38865 2011 12 9 55904 0.1464 0.3116 -0.38912 2011 12 10 55905 0.1455 0.3108 -0.38953 2011 12 11 55906 0.1447 0.3100 -0.38991 2011 12 12 55907 0.1438 0.3092 -0.39033 2011 12 13 55908 0.1430 0.3085 -0.39084 2011 12 14 55909 0.1421 0.3077 -0.39149 2011 12 15 55910 0.1412 0.3070 -0.39231 2011 12 16 55911 0.1403 0.3062 -0.39330 2011 12 17 55912 0.1394 0.3055 -0.39442 2011 12 18 55913 0.1385 0.3048 -0.39561 2011 12 19 55914 0.1376 0.3041 -0.39680 2011 12 20 55915 0.1367 0.3034 -0.39788 2011 12 21 55916 0.1358 0.3028 -0.39881 2011 12 22 55917 0.1348 0.3022 -0.39955 2011 12 23 55918 0.1339 0.3015 -0.40014 2011 12 24 55919 0.1330 0.3009 -0.40063 2011 12 25 55920 0.1320 0.3003 -0.40112 2011 12 26 55921 0.1310 0.2998 -0.40168 2011 12 27 55922 0.1301 0.2992 -0.40234 2011 12 28 55923 0.1291 0.2986 -0.40311 2011 12 29 55924 0.1281 0.2981 -0.40395 2011 12 30 55925 0.1272 0.2976 -0.40481 2011 12 31 55926 0.1262 0.2971 -0.40564 2012 1 1 55927 0.1252 0.2966 -0.40640 2012 1 2 55928 0.1242 0.2962 -0.40706 2012 1 3 55929 0.1233 0.2957 -0.40760 2012 1 4 55930 0.1223 0.2953 -0.40801 2012 1 5 55931 0.1213 0.2949 -0.40832 2012 1 6 55932 0.1203 0.2945 -0.40855 2012 1 7 55933 0.1193 0.2941 -0.40874 2012 1 8 55934 0.1183 0.2937 -0.40896 2012 1 9 55935 0.1173 0.2933 -0.40926 2012 1 10 55936 0.1163 0.2930 -0.40970 2012 1 11 55937 0.1153 0.2927 -0.41031 2012 1 12 55938 0.1143 0.2924 -0.41110 2012 1 13 55939 0.1133 0.2921 -0.41204 2012 1 14 55940 0.1123 0.2918 -0.41306 2012 1 15 55941 0.1113 0.2915 -0.41408 2012 1 16 55942 0.1104 0.2913 -0.41502 2012 1 17 55943 0.1094 0.2911 -0.41582 2012 1 18 55944 0.1084 0.2909 -0.41645 2012 1 19 55945 0.1074 0.2907 -0.41694 2012 1 20 55946 0.1064 0.2905 -0.41733 2012 1 21 55947 0.1054 0.2903 -0.41771 2012 1 22 55948 0.1045 0.2902 -0.41814 2012 1 23 55949 0.1035 0.2900 -0.41869 2012 1 24 55950 0.1025 0.2899 -0.41936 2012 1 25 55951 0.1016 0.2898 -0.42013 2012 1 26 55952 0.1006 0.2897 -0.42096 2012 1 27 55953 0.0996 0.2896 -0.42180 2012 1 28 55954 0.0987 0.2896 -0.42258 2012 1 29 55955 0.0977 0.2895 -0.42329 2012 1 30 55956 0.0968 0.2895 -0.42389 2012 1 31 55957 0.0959 0.2895 -0.42437 2012 2 1 55958 0.0949 0.2895 -0.42475 2012 2 2 55959 0.0940 0.2895 -0.42503 2012 2 3 55960 0.0931 0.2895 -0.42526 2012 2 4 55961 0.0922 0.2896 -0.42548 2012 2 5 55962 0.0913 0.2896 -0.42577 2012 2 6 55963 0.0904 0.2897 -0.42618 2012 2 7 55964 0.0895 0.2897 -0.42678 2012 2 8 55965 0.0886 0.2898 -0.42759 2012 2 9 55966 0.0878 0.2899 -0.42861 2012 2 10 55967 0.0869 0.2901 -0.42978 2012 2 11 55968 0.0860 0.2902 -0.43098 2012 2 12 55969 0.0852 0.2903 -0.43208 2012 2 13 55970 0.0844 0.2905 -0.43304 2012 2 14 55971 0.0835 0.2907 -0.43384 2012 2 15 55972 0.0827 0.2908 -0.43448 2012 2 16 55973 0.0819 0.2910 -0.43506 2012 2 17 55974 0.0811 0.2912 -0.43568 2012 2 18 55975 0.0803 0.2915 -0.43640 2012 2 19 55976 0.0795 0.2917 -0.43722 2012 2 20 55977 0.0787 0.2919 -0.43816 2012 2 21 55978 0.0780 0.2922 -0.43922 2012 2 22 55979 0.0772 0.2924 -0.44034 2012 2 23 55980 0.0765 0.2927 -0.44147 2012 2 24 55981 0.0758 0.2930 -0.44259 2012 2 25 55982 0.0750 0.2933 -0.44369 2012 2 26 55983 0.0743 0.2936 -0.44471 2012 2 27 55984 0.0736 0.2939 -0.44563 2012 2 28 55985 0.0729 0.2942 -0.44642 2012 2 29 55986 0.0723 0.2946 -0.44716 2012 3 1 55987 0.0716 0.2949 -0.44784 2012 3 2 55988 0.0709 0.2953 -0.44846 2012 3 3 55989 0.0703 0.2956 -0.44910 2012 3 4 55990 0.0697 0.2960 -0.44987 2012 3 5 55991 0.0691 0.2964 -0.45083 2012 3 6 55992 0.0684 0.2967 -0.45200 2012 3 7 55993 0.0679 0.2971 -0.45339 2012 3 8 55994 0.0673 0.2975 -0.45497 2012 3 9 55995 0.0667 0.2979 -0.45668 2012 3 10 55996 0.0661 0.2984 -0.45842 2012 3 11 55997 0.0656 0.2988 -0.46005 2012 3 12 55998 0.0651 0.2992 -0.46151 2012 3 13 55999 0.0645 0.2996 -0.46276 2012 3 14 56000 0.0640 0.3001 -0.46383 2012 3 15 56001 0.0635 0.3005 -0.46480 2012 3 16 56002 0.0631 0.3010 -0.46571 2012 3 17 56003 0.0626 0.3015 -0.46666 2012 3 18 56004 0.0621 0.3019 -0.46773 2012 3 19 56005 0.0617 0.3024 -0.46896 2012 3 20 56006 0.0613 0.3029 -0.47038 2012 3 21 56007 0.0609 0.3034 -0.47187 2012 3 22 56008 0.0604 0.3038 -0.47344 2012 3 23 56009 0.0601 0.3043 -0.47498 2012 3 24 56010 0.0597 0.3048 -0.47640 2012 3 25 56011 0.0593 0.3053 -0.47768 2012 3 26 56012 0.0590 0.3058 -0.47883 2012 3 27 56013 0.0586 0.3063 -0.47982 2012 3 28 56014 0.0583 0.3069 -0.48069 2012 3 29 56015 0.0580 0.3074 -0.48145 2012 3 30 56016 0.0577 0.3079 -0.48221 2012 3 31 56017 0.0574 0.3084 -0.48304 2012 4 1 56018 0.0571 0.3089 -0.48400 2012 4 2 56019 0.0569 0.3095 -0.48518 2012 4 3 56020 0.0566 0.3100 -0.48658 2012 4 4 56021 0.0564 0.3105 -0.48819 2012 4 5 56022 0.0561 0.3110 -0.48996 2012 4 6 56023 0.0559 0.3116 -0.49183 2012 4 7 56024 0.0557 0.3121 -0.49365 2012 4 8 56025 0.0556 0.3126 -0.49534 2012 4 9 56026 0.0554 0.3132 -0.49685 2012 4 10 56027 0.0552 0.3137 -0.49814 2012 4 11 56028 0.0551 0.3142 -0.49932 2012 4 12 56029 0.0549 0.3148 -0.50046 2012 4 13 56030 0.0548 0.3153 -0.50168 2012 4 14 56031 0.0547 0.3158 -0.50305 2012 4 15 56032 0.0546 0.3164 -0.50451 2012 4 16 56033 0.0545 0.3169 -0.50609 2012 4 17 56034 0.0544 0.3174 -0.50768 2012 4 18 56035 0.0544 0.3180 -0.50926 2012 4 19 56036 0.0543 0.3185 -0.51078 2012 4 20 56037 0.0543 0.3190 -0.51217 2012 4 21 56038 0.0542 0.3196 -0.51343 2012 4 22 56039 0.0542 0.3201 -0.51454 2012 4 23 56040 0.0542 0.3206 -0.51547 2012 4 24 56041 0.0542 0.3211 -0.51622 2012 4 25 56042 0.0542 0.3217 -0.51686 2012 4 26 56043 0.0543 0.3222 -0.51736 2012 4 27 56044 0.0543 0.3227 -0.51785 2012 4 28 56045 0.0543 0.3232 -0.51844 2012 4 29 56046 0.0544 0.3237 -0.51912 2012 4 30 56047 0.0545 0.3242 -0.51997 2012 5 1 56048 0.0545 0.3247 -0.52099 2012 5 2 56049 0.0546 0.3252 -0.52221 2012 5 3 56050 0.0547 0.3257 -0.52349 2012 5 4 56051 0.0548 0.3262 -0.52470 2012 5 5 56052 0.0549 0.3267 -0.52580 2012 5 6 56053 0.0551 0.3272 -0.52664 2012 5 7 56054 0.0552 0.3276 -0.52727 2012 5 8 56055 0.0553 0.3281 -0.52779 2012 5 9 56056 0.0555 0.3286 -0.52827 2012 5 10 56057 0.0556 0.3290 -0.52878 2012 5 11 56058 0.0558 0.3295 -0.52934 2012 5 12 56059 0.0560 0.3300 -0.52999 2012 5 13 56060 0.0562 0.3304 -0.53073 2012 5 14 56061 0.0564 0.3309 -0.53149 2012 5 15 56062 0.0566 0.3313 -0.53226 2012 5 16 56063 0.0568 0.3317 -0.53303 2012 5 17 56064 0.0570 0.3322 -0.53371 2012 5 18 56065 0.0572 0.3326 -0.53429 2012 5 19 56066 0.0574 0.3330 -0.53477 2012 5 20 56067 0.0577 0.3334 -0.53512 2012 5 21 56068 0.0579 0.3338 -0.53533 2012 5 22 56069 0.0581 0.3342 -0.53545 2012 5 23 56070 0.0584 0.3346 -0.53555 2012 5 24 56071 0.0586 0.3350 -0.53569 2012 5 25 56072 0.0589 0.3354 -0.53595 2012 5 26 56073 0.0592 0.3357 -0.53636 2012 5 27 56074 0.0594 0.3361 -0.53692 2012 5 28 56075 0.0597 0.3365 -0.53766 2012 5 29 56076 0.0600 0.3368 -0.53853 2012 5 30 56077 0.0603 0.3372 -0.53948 2012 5 31 56078 0.0606 0.3375 -0.54045 2012 6 1 56079 0.0609 0.3378 -0.54134 2012 6 2 56080 0.0612 0.3382 -0.54214 2012 6 3 56081 0.0615 0.3385 -0.54272 2012 6 4 56082 0.0618 0.3388 -0.54311 2012 6 5 56083 0.0621 0.3391 -0.54343 2012 6 6 56084 0.0624 0.3394 -0.54372 2012 6 7 56085 0.0627 0.3397 -0.54401 2012 6 8 56086 0.0630 0.3400 -0.54441 2012 6 9 56087 0.0634 0.3402 -0.54490 2012 6 10 56088 0.0637 0.3405 -0.54544 2012 6 11 56089 0.0640 0.3408 -0.54600 2012 6 12 56090 0.0643 0.3410 -0.54656 2012 6 13 56091 0.0646 0.3413 -0.54703 2012 6 14 56092 0.0650 0.3415 -0.54736 2012 6 15 56093 0.0653 0.3418 -0.54753 2012 6 16 56094 0.0656 0.3420 -0.54755 2012 6 17 56095 0.0660 0.3422 -0.54747 2012 6 18 56096 0.0663 0.3424 -0.54733 2012 6 19 56097 0.0666 0.3426 -0.54711 2012 6 20 56098 0.0670 0.3428 -0.54691 2012 6 21 56099 0.0673 0.3430 -0.54675 2012 6 22 56100 0.0676 0.3432 -0.54669 2012 6 23 56101 0.0679 0.3434 -0.54676 2012 6 24 56102 0.0683 0.3435 -0.54693 2012 6 25 56103 0.0686 0.3437 -0.54717 2012 6 26 56104 0.0689 0.3439 -0.54744 2012 6 27 56105 0.0692 0.3440 -0.54772 2012 6 28 56106 0.0696 0.3442 -0.54798 2012 6 29 56107 0.0699 0.3443 -0.54816 2012 6 30 56108 0.0702 0.3444 -0.54820 2012 7 1 56109 0.0705 0.3445 -0.54812 2012 7 2 56110 0.0708 0.3447 -0.54793 2012 7 3 56111 0.0711 0.3448 -0.54767 2012 7 4 56112 0.0715 0.3449 -0.54740 2012 7 5 56113 0.0718 0.3450 -0.54723 2012 7 6 56114 0.0721 0.3451 -0.54724 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) 55728 -68.78 0.17 -11.23 0.07 55729 -68.57 0.17 -11.07 0.07 55730 -68.42 0.17 -10.87 0.07 55731 -68.54 0.15 -10.78 0.09 55732 -69.00 0.15 -10.87 0.09 55733 -69.60 0.30 -11.07 0.11 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55683 -65.4 -11.4 55684 -65.5 -11.7 55685 -65.7 -11.9 55686 -65.9 -11.9 55687 -66.0 -11.8 55688 -65.9 -11.8 55689 -65.9 -11.9 55690 -65.9 -12.0 55691 -65.7 -12.1 55692 -65.4 -12.1 55693 -65.3 -12.0 55694 -65.5 -11.7 55695 -65.8 -11.4 55696 -66.1 -11.1 55697 -66.3 -11.2 55698 -66.3 -11.4 55699 -66.1 -11.6 55700 -65.8 -11.5 55701 -65.5 -11.4 55702 -65.1 -11.4 55703 -65.1 -11.4 55704 -65.5 -11.5 55705 -65.9 -11.7 55706 -66.0 -11.9 55707 -65.7 -12.0 55708 -65.4 -11.9 55709 -65.7 -11.7 55710 -66.3 -11.6 55711 -66.8 -11.7 55712 -67.4 -11.8 55713 -67.5 -11.8 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55728 -0.240 0.068 -0.107 0.070 55729 -0.264 0.068 -0.105 0.070 55730 -0.296 0.068 -0.093 0.070 55731 -0.338 0.060 -0.064 0.090 55732 -0.395 0.060 -0.023 0.090 55733 -0.455 0.119 0.032 0.110 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55683 -0.14 -0.11 55684 -0.11 -0.12 55685 -0.18 -0.14 55686 -0.31 -0.11 55687 -0.41 -0.05 55688 -0.38 -0.05 55689 -0.34 -0.09 55690 -0.31 -0.11 55691 -0.28 -0.16 55692 -0.28 -0.17 55693 -0.35 -0.19 55694 -0.42 -0.16 55695 -0.41 -0.21 55696 -0.34 -0.10 55697 -0.28 -0.11 55698 -0.25 -0.05 55699 -0.22 -0.09 55700 -0.19 -0.02 55701 -0.21 -0.05 55702 -0.16 -0.15 55703 -0.14 -0.15 55704 -0.14 -0.16 55705 -0.11 -0.20 55706 -0.09 -0.24 55707 -0.04 -0.29 55708 0.01 -0.28 55709 -0.06 -0.24 55710 -0.13 -0.22 55711 -0.14 -0.26 55712 -0.23 -0.22 55713 -0.19 -0.12 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).