********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 June 2011 Vol. XXIV No. 025 ______________________________________________________________________ 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 17 55729 0.01900 .00010 0.42442 .00009 -0.289179 0.000014 11 6 18 55730 0.02090 .00010 0.42544 .00009 -0.289418 0.000015 11 6 19 55731 0.02286 .00009 0.42642 .00009 -0.289719 0.000017 11 6 20 55732 0.02503 .00009 0.42712 .00009 -0.290074 0.000012 11 6 21 55733 0.02715 .00009 0.42776 .00010 -0.290475 0.000011 11 6 22 55734 0.02914 .00009 0.42846 .00009 -0.290894 0.000009 11 6 23 55735 0.03109 .00009 0.42932 .00009 -0.291252 0.000008 _______________________________________________________________________ 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 = 0.0904 - 0.0089 cos A + 0.1230 sin A - 0.0500 cos C - 0.0184 sin C y = 0.3320 + 0.1118 cos A + 0.0086 sin A - 0.0184 cos C + 0.0500 sin C UT1-UTC = -0.2823 - 0.00068 (MJD - 55743) - (UT2-UT1) where A = 2*pi*(MJD-55735)/365.25 and C = 2*pi*(MJD-55735)/435. TAI-UTC(MJD 55736) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55735)**0.80 S t = 0.00025 (MJD-55735)**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 24 55736 0.0329 0.4301 -0.29156 2011 6 25 55737 0.0346 0.4309 -0.29176 2011 6 26 55738 0.0363 0.4317 -0.29186 2011 6 27 55739 0.0380 0.4324 -0.29185 2011 6 28 55740 0.0397 0.4331 -0.29174 2011 6 29 55741 0.0414 0.4337 -0.29154 2011 6 30 55742 0.0431 0.4342 -0.29127 2011 7 1 55743 0.0448 0.4348 -0.29102 2011 7 2 55744 0.0465 0.4353 -0.29088 2011 7 3 55745 0.0481 0.4358 -0.29094 2011 7 4 55746 0.0498 0.4363 -0.29121 2011 7 5 55747 0.0514 0.4368 -0.29166 2011 7 6 55748 0.0531 0.4372 -0.29222 2011 7 7 55749 0.0547 0.4376 -0.29282 2011 7 8 55750 0.0564 0.4379 -0.29338 2011 7 9 55751 0.0580 0.4382 -0.29380 2011 7 10 55752 0.0597 0.4386 -0.29405 2011 7 11 55753 0.0613 0.4388 -0.29412 2011 7 12 55754 0.0630 0.4391 -0.29405 2011 7 13 55755 0.0646 0.4393 -0.29390 2011 7 14 55756 0.0662 0.4395 -0.29378 2011 7 15 55757 0.0679 0.4397 -0.29375 2011 7 16 55758 0.0695 0.4399 -0.29385 2011 7 17 55759 0.0711 0.4400 -0.29408 2011 7 18 55760 0.0728 0.4401 -0.29441 2011 7 19 55761 0.0744 0.4402 -0.29480 2011 7 20 55762 0.0760 0.4402 -0.29518 2011 7 21 55763 0.0776 0.4403 -0.29550 2011 7 22 55764 0.0792 0.4403 -0.29575 2011 7 23 55765 0.0808 0.4403 -0.29590 2011 7 24 55766 0.0824 0.4402 -0.29596 2011 7 25 55767 0.0840 0.4402 -0.29592 2011 7 26 55768 0.0856 0.4401 -0.29580 2011 7 27 55769 0.0872 0.4400 -0.29565 2011 7 28 55770 0.0887 0.4398 -0.29551 2011 7 29 55771 0.0903 0.4397 -0.29548 2011 7 30 55772 0.0919 0.4395 -0.29561 2011 7 31 55773 0.0934 0.4393 -0.29596 2011 8 1 55774 0.0949 0.4391 -0.29652 2011 8 2 55775 0.0965 0.4388 -0.29724 2011 8 3 55776 0.0980 0.4385 -0.29802 2011 8 4 55777 0.0995 0.4382 -0.29874 2011 8 5 55778 0.1010 0.4379 -0.29930 2011 8 6 55779 0.1025 0.4376 -0.29964 2011 8 7 55780 0.1040 0.4372 -0.29977 2011 8 8 55781 0.1054 0.4368 -0.29970 2011 8 9 55782 0.1069 0.4364 -0.29953 2011 8 10 55783 0.1083 0.4360 -0.29933 2011 8 11 55784 0.1098 0.4355 -0.29917 2011 8 12 55785 0.1112 0.4351 -0.29912 2011 8 13 55786 0.1126 0.4346 -0.29920 2011 8 14 55787 0.1140 0.4341 -0.29939 2011 8 15 55788 0.1154 0.4335 -0.29967 2011 8 16 55789 0.1167 0.4330 -0.30000 2011 8 17 55790 0.1181 0.4324 -0.30031 2011 8 18 55791 0.1194 0.4318 -0.30058 2011 8 19 55792 0.1207 0.4312 -0.30076 2011 8 20 55793 0.1220 0.4306 -0.30083 2011 8 21 55794 0.1233 0.4299 -0.30080 2011 8 22 55795 0.1246 0.4293 -0.30067 2011 8 23 55796 0.1258 0.4286 -0.30048 2011 8 24 55797 0.1271 0.4279 -0.30030 2011 8 25 55798 0.1283 0.4272 -0.30019 2011 8 26 55799 0.1295 0.4264 -0.30023 2011 8 27 55800 0.1307 0.4257 -0.30049 2011 8 28 55801 0.1319 0.4249 -0.30101 2011 8 29 55802 0.1330 0.4241 -0.30177 2011 8 30 55803 0.1342 0.4233 -0.30269 2011 8 31 55804 0.1353 0.4225 -0.30364 2011 9 1 55805 0.1364 0.4217 -0.30449 2011 9 2 55806 0.1375 0.4208 -0.30515 2011 9 3 55807 0.1385 0.4200 -0.30557 2011 9 4 55808 0.1396 0.4191 -0.30580 2011 9 5 55809 0.1406 0.4182 -0.30591 2011 9 6 55810 0.1416 0.4173 -0.30599 2011 9 7 55811 0.1426 0.4163 -0.30611 2011 9 8 55812 0.1436 0.4154 -0.30633 2011 9 9 55813 0.1445 0.4145 -0.30668 2011 9 10 55814 0.1454 0.4135 -0.30715 2011 9 11 55815 0.1463 0.4125 -0.30771 2011 9 12 55816 0.1472 0.4115 -0.30834 2011 9 13 55817 0.1481 0.4105 -0.30897 2011 9 14 55818 0.1489 0.4095 -0.30958 2011 9 15 55819 0.1497 0.4085 -0.31011 2011 9 16 55820 0.1505 0.4075 -0.31055 2011 9 17 55821 0.1513 0.4064 -0.31089 2011 9 18 55822 0.1521 0.4054 -0.31114 2011 9 19 55823 0.1528 0.4043 -0.31134 2011 9 20 55824 0.1535 0.4032 -0.31153 2011 9 21 55825 0.1542 0.4021 -0.31177 2011 9 22 55826 0.1549 0.4010 -0.31213 2011 9 23 55827 0.1556 0.3999 -0.31268 2011 9 24 55828 0.1562 0.3988 -0.31348 2011 9 25 55829 0.1568 0.3977 -0.31453 2011 9 26 55830 0.1574 0.3966 -0.31579 2011 9 27 55831 0.1580 0.3955 -0.31717 2011 9 28 55832 0.1585 0.3943 -0.31852 2011 9 29 55833 0.1590 0.3932 -0.31973 2011 9 30 55834 0.1595 0.3920 -0.32072 2011 10 1 55835 0.1600 0.3909 -0.32148 2011 10 2 55836 0.1605 0.3897 -0.32208 2011 10 3 55837 0.1609 0.3885 -0.32260 2011 10 4 55838 0.1613 0.3874 -0.32312 2011 10 5 55839 0.1617 0.3862 -0.32373 2011 10 6 55840 0.1621 0.3850 -0.32444 2011 10 7 55841 0.1624 0.3838 -0.32526 2011 10 8 55842 0.1627 0.3826 -0.32617 2011 10 9 55843 0.1630 0.3814 -0.32713 2011 10 10 55844 0.1633 0.3802 -0.32822 2011 10 11 55845 0.1635 0.3790 -0.32928 2011 10 12 55846 0.1638 0.3778 -0.33028 2011 10 13 55847 0.1640 0.3766 -0.33117 2011 10 14 55848 0.1642 0.3754 -0.33196 2011 10 15 55849 0.1644 0.3742 -0.33265 2011 10 16 55850 0.1645 0.3730 -0.33327 2011 10 17 55851 0.1646 0.3718 -0.33386 2011 10 18 55852 0.1647 0.3706 -0.33447 2011 10 19 55853 0.1648 0.3694 -0.33516 2011 10 20 55854 0.1649 0.3682 -0.33599 2011 10 21 55855 0.1649 0.3670 -0.33701 2011 10 22 55856 0.1649 0.3658 -0.33827 2011 10 23 55857 0.1649 0.3646 -0.33974 2011 10 24 55858 0.1649 0.3634 -0.34136 2011 10 25 55859 0.1649 0.3622 -0.34303 2011 10 26 55860 0.1648 0.3610 -0.34462 2011 10 27 55861 0.1647 0.3598 -0.34604 2011 10 28 55862 0.1646 0.3586 -0.34723 2011 10 29 55863 0.1645 0.3575 -0.34821 2011 10 30 55864 0.1643 0.3563 -0.34906 2011 10 31 55865 0.1642 0.3551 -0.34989 2011 11 1 55866 0.1640 0.3539 -0.35075 2011 11 2 55867 0.1638 0.3528 -0.35171 2011 11 3 55868 0.1636 0.3516 -0.35276 2011 11 4 55869 0.1633 0.3504 -0.35389 2011 11 5 55870 0.1630 0.3493 -0.35505 2011 11 6 55871 0.1628 0.3482 -0.35622 2011 11 7 55872 0.1625 0.3470 -0.35736 2011 11 8 55873 0.1621 0.3459 -0.35842 2011 11 9 55874 0.1618 0.3448 -0.35937 2011 11 10 55875 0.1615 0.3436 -0.36021 2011 11 11 55876 0.1611 0.3425 -0.36093 2011 11 12 55877 0.1607 0.3414 -0.36155 2011 11 13 55878 0.1603 0.3403 -0.36213 2011 11 14 55879 0.1599 0.3392 -0.36269 2011 11 15 55880 0.1594 0.3382 -0.36331 2011 11 16 55881 0.1590 0.3371 -0.36404 2011 11 17 55882 0.1585 0.3360 -0.36491 2011 11 18 55883 0.1580 0.3350 -0.36598 2011 11 19 55884 0.1575 0.3339 -0.36723 2011 11 20 55885 0.1570 0.3329 -0.36863 2011 11 21 55886 0.1564 0.3319 -0.37010 2011 11 22 55887 0.1559 0.3309 -0.37154 2011 11 23 55888 0.1553 0.3299 -0.37286 2011 11 24 55889 0.1547 0.3289 -0.37398 2011 11 25 55890 0.1541 0.3279 -0.37490 2011 11 26 55891 0.1535 0.3269 -0.37566 2011 11 27 55892 0.1529 0.3259 -0.37634 2011 11 28 55893 0.1522 0.3250 -0.37704 2011 11 29 55894 0.1516 0.3241 -0.37782 2011 11 30 55895 0.1509 0.3231 -0.37870 2011 12 1 55896 0.1502 0.3222 -0.37965 2011 12 2 55897 0.1495 0.3213 -0.38065 2011 12 3 55898 0.1488 0.3204 -0.38164 2011 12 4 55899 0.1481 0.3195 -0.38259 2011 12 5 55900 0.1474 0.3187 -0.38347 2011 12 6 55901 0.1467 0.3178 -0.38424 2011 12 7 55902 0.1459 0.3170 -0.38489 2011 12 8 55903 0.1452 0.3161 -0.38542 2011 12 9 55904 0.1444 0.3153 -0.38585 2011 12 10 55905 0.1436 0.3145 -0.38621 2011 12 11 55906 0.1428 0.3137 -0.38655 2011 12 12 55907 0.1420 0.3130 -0.38693 2011 12 13 55908 0.1412 0.3122 -0.38740 2011 12 14 55909 0.1404 0.3115 -0.38801 2011 12 15 55910 0.1396 0.3107 -0.38879 2011 12 16 55911 0.1387 0.3100 -0.38974 2011 12 17 55912 0.1379 0.3093 -0.39082 2011 12 18 55913 0.1370 0.3086 -0.39197 2011 12 19 55914 0.1362 0.3079 -0.39311 2011 12 20 55915 0.1353 0.3073 -0.39415 2011 12 21 55916 0.1344 0.3066 -0.39502 2011 12 22 55917 0.1335 0.3060 -0.39571 2011 12 23 55918 0.1327 0.3054 -0.39623 2011 12 24 55919 0.1318 0.3047 -0.39665 2011 12 25 55920 0.1309 0.3042 -0.39705 2011 12 26 55921 0.1300 0.3036 -0.39751 2011 12 27 55922 0.1291 0.3030 -0.39806 2011 12 28 55923 0.1282 0.3025 -0.39871 2011 12 29 55924 0.1272 0.3019 -0.39941 2011 12 30 55925 0.1263 0.3014 -0.40013 2011 12 31 55926 0.1254 0.3009 -0.40082 2012 1 1 55927 0.1245 0.3004 -0.40144 2012 1 2 55928 0.1235 0.3000 -0.40197 2012 1 3 55929 0.1226 0.2995 -0.40239 2012 1 4 55930 0.1217 0.2991 -0.40270 2012 1 5 55931 0.1207 0.2986 -0.40290 2012 1 6 55932 0.1198 0.2982 -0.40303 2012 1 7 55933 0.1189 0.2978 -0.40314 2012 1 8 55934 0.1179 0.2974 -0.40327 2012 1 9 55935 0.1170 0.2971 -0.40349 2012 1 10 55936 0.1160 0.2967 -0.40386 2012 1 11 55937 0.1151 0.2964 -0.40440 2012 1 12 55938 0.1141 0.2961 -0.40512 2012 1 13 55939 0.1132 0.2958 -0.40599 2012 1 14 55940 0.1123 0.2955 -0.40694 2012 1 15 55941 0.1113 0.2952 -0.40788 2012 1 16 55942 0.1104 0.2949 -0.40875 2012 1 17 55943 0.1094 0.2947 -0.40947 2012 1 18 55944 0.1085 0.2944 -0.41004 2012 1 19 55945 0.1076 0.2942 -0.41048 2012 1 20 55946 0.1066 0.2940 -0.41086 2012 1 21 55947 0.1057 0.2938 -0.41125 2012 1 22 55948 0.1048 0.2937 -0.41174 2012 1 23 55949 0.1039 0.2935 -0.41237 2012 1 24 55950 0.1029 0.2934 -0.41313 2012 1 25 55951 0.1020 0.2932 -0.41399 2012 1 26 55952 0.1011 0.2931 -0.41490 2012 1 27 55953 0.1002 0.2930 -0.41580 2012 1 28 55954 0.0993 0.2929 -0.41668 2012 1 29 55955 0.0984 0.2928 -0.41750 2012 1 30 55956 0.0975 0.2928 -0.41822 2012 1 31 55957 0.0966 0.2927 -0.41883 2012 2 1 55958 0.0957 0.2927 -0.41935 2012 2 2 55959 0.0949 0.2927 -0.41978 2012 2 3 55960 0.0940 0.2927 -0.42011 2012 2 4 55961 0.0931 0.2927 -0.42046 2012 2 5 55962 0.0923 0.2927 -0.42090 2012 2 6 55963 0.0914 0.2927 -0.42149 2012 2 7 55964 0.0906 0.2928 -0.42226 2012 2 8 55965 0.0897 0.2928 -0.42325 2012 2 9 55966 0.0889 0.2929 -0.42443 2012 2 10 55967 0.0881 0.2930 -0.42577 2012 2 11 55968 0.0873 0.2931 -0.42722 2012 2 12 55969 0.0865 0.2932 -0.42859 2012 2 13 55970 0.0857 0.2933 -0.42985 2012 2 14 55971 0.0849 0.2934 -0.43090 2012 2 15 55972 0.0841 0.2935 -0.43177 2012 2 16 55973 0.0833 0.2937 -0.43248 2012 2 17 55974 0.0826 0.2939 -0.43310 2012 2 18 55975 0.0818 0.2940 -0.43374 2012 2 19 55976 0.0810 0.2942 -0.43447 2012 2 20 55977 0.0803 0.2944 -0.43540 2012 2 21 55978 0.0796 0.2946 -0.43654 2012 2 22 55979 0.0789 0.2948 -0.43780 2012 2 23 55980 0.0782 0.2951 -0.43918 2012 2 24 55981 0.0775 0.2953 -0.44056 2012 2 25 55982 0.0768 0.2955 -0.44185 2012 2 26 55983 0.0761 0.2958 -0.44302 2012 2 27 55984 0.0754 0.2961 -0.44407 2012 2 28 55985 0.0748 0.2963 -0.44495 2012 2 29 55986 0.0741 0.2966 -0.44568 2012 3 1 55987 0.0735 0.2969 -0.44630 2012 3 2 55988 0.0729 0.2972 -0.44689 2012 3 3 55989 0.0723 0.2975 -0.44752 2012 3 4 55990 0.0717 0.2978 -0.44828 2012 3 5 55991 0.0711 0.2982 -0.44924 2012 3 6 55992 0.0705 0.2985 -0.45042 2012 3 7 55993 0.0699 0.2988 -0.45185 2012 3 8 55994 0.0694 0.2992 -0.45347 2012 3 9 55995 0.0688 0.2995 -0.45524 2012 3 10 55996 0.0683 0.2999 -0.45701 2012 3 11 55997 0.0678 0.3003 -0.45870 2012 3 12 55998 0.0673 0.3007 -0.46021 2012 3 13 55999 0.0668 0.3010 -0.46151 2012 3 14 56000 0.0663 0.3014 -0.46267 2012 3 15 56001 0.0658 0.3018 -0.46375 2012 3 16 56002 0.0654 0.3022 -0.46488 2012 3 17 56003 0.0649 0.3026 -0.46615 2012 3 18 56004 0.0645 0.3030 -0.46752 2012 3 19 56005 0.0641 0.3035 -0.46906 2012 3 20 56006 0.0636 0.3039 -0.47067 2012 3 21 56007 0.0632 0.3043 -0.47232 2012 3 22 56008 0.0629 0.3047 -0.47397 2012 3 23 56009 0.0625 0.3052 -0.47552 2012 3 24 56010 0.0621 0.3056 -0.47698 2012 3 25 56011 0.0618 0.3061 -0.47830 2012 3 26 56012 0.0614 0.3065 -0.47944 2012 3 27 56013 0.0611 0.3070 -0.48041 2012 3 28 56014 0.0608 0.3074 -0.48123 2012 3 29 56015 0.0605 0.3079 -0.48190 2012 3 30 56016 0.0602 0.3083 -0.48253 2012 3 31 56017 0.0599 0.3088 -0.48326 2012 4 1 56018 0.0597 0.3093 -0.48406 2012 4 2 56019 0.0594 0.3097 -0.48505 2012 4 3 56020 0.0592 0.3102 -0.48624 2012 4 4 56021 0.0590 0.3107 -0.48767 2012 4 5 56022 0.0587 0.3111 -0.48923 2012 4 6 56023 0.0585 0.3116 -0.49078 2012 4 7 56024 0.0584 0.3121 -0.49225 2012 4 8 56025 0.0582 0.3126 -0.49350 2012 4 9 56026 0.0580 0.3130 -0.49452 2012 4 10 56027 0.0579 0.3135 -0.49540 2012 4 11 56028 0.0577 0.3140 -0.49620 2012 4 12 56029 0.0576 0.3145 -0.49697 2012 4 13 56030 0.0575 0.3149 -0.49778 2012 4 14 56031 0.0574 0.3154 -0.49868 2012 4 15 56032 0.0573 0.3159 -0.49970 2012 4 16 56033 0.0572 0.3164 -0.50078 2012 4 17 56034 0.0571 0.3168 -0.50193 2012 4 18 56035 0.0570 0.3173 -0.50313 2012 4 19 56036 0.0570 0.3178 -0.50430 2012 4 20 56037 0.0569 0.3183 -0.50539 2012 4 21 56038 0.0569 0.3187 -0.50641 2012 4 22 56039 0.0569 0.3192 -0.50730 2012 4 23 56040 0.0569 0.3197 -0.50803 2012 4 24 56041 0.0569 0.3201 -0.50867 2012 4 25 56042 0.0569 0.3206 -0.50925 2012 4 26 56043 0.0569 0.3211 -0.50985 2012 4 27 56044 0.0569 0.3215 -0.51053 2012 4 28 56045 0.0570 0.3220 -0.51134 2012 4 29 56046 0.0570 0.3224 -0.51230 2012 4 30 56047 0.0571 0.3229 -0.51347 2012 5 1 56048 0.0571 0.3233 -0.51481 2012 5 2 56049 0.0572 0.3238 -0.51629 2012 5 3 56050 0.0573 0.3242 -0.51784 2012 5 4 56051 0.0574 0.3247 -0.51938 2012 5 5 56052 0.0575 0.3251 -0.52086 2012 5 6 56053 0.0576 0.3255 -0.52211 2012 5 7 56054 0.0577 0.3259 -0.52314 2012 5 8 56055 0.0579 0.3264 -0.52404 2012 5 9 56056 0.0580 0.3268 -0.52485 2012 5 10 56057 0.0582 0.3272 -0.52561 2012 5 11 56058 0.0583 0.3276 -0.52645 2012 5 12 56059 0.0585 0.3280 -0.52739 2012 5 13 56060 0.0586 0.3284 -0.52840 2012 5 14 56061 0.0588 0.3288 -0.52946 2012 5 15 56062 0.0590 0.3292 -0.53057 2012 5 16 56063 0.0592 0.3296 -0.53161 2012 5 17 56064 0.0594 0.3299 -0.53255 2012 5 18 56065 0.0596 0.3303 -0.53335 2012 5 19 56066 0.0598 0.3307 -0.53399 2012 5 20 56067 0.0600 0.3311 -0.53452 2012 5 21 56068 0.0602 0.3314 -0.53495 2012 5 22 56069 0.0605 0.3318 -0.53529 2012 5 23 56070 0.0607 0.3321 -0.53558 2012 5 24 56071 0.0609 0.3325 -0.53589 2012 5 25 56072 0.0612 0.3328 -0.53625 2012 5 26 56073 0.0614 0.3331 -0.53671 2012 5 27 56074 0.0617 0.3334 -0.53726 2012 5 28 56075 0.0619 0.3338 -0.53791 2012 5 29 56076 0.0622 0.3341 -0.53863 2012 5 30 56077 0.0624 0.3344 -0.53943 2012 5 31 56078 0.0627 0.3347 -0.54026 2012 6 1 56079 0.0630 0.3350 -0.54106 2012 6 2 56080 0.0632 0.3352 -0.54172 2012 6 3 56081 0.0635 0.3355 -0.54223 2012 6 4 56082 0.0638 0.3358 -0.54258 2012 6 5 56083 0.0641 0.3361 -0.54277 2012 6 6 56084 0.0644 0.3363 -0.54290 2012 6 7 56085 0.0647 0.3366 -0.54308 2012 6 8 56086 0.0649 0.3368 -0.54340 2012 6 9 56087 0.0652 0.3371 -0.54379 2012 6 10 56088 0.0655 0.3373 -0.54429 2012 6 11 56089 0.0658 0.3375 -0.54486 2012 6 12 56090 0.0661 0.3378 -0.54539 2012 6 13 56091 0.0664 0.3380 -0.54583 2012 6 14 56092 0.0667 0.3382 -0.54604 2012 6 15 56093 0.0670 0.3384 -0.54606 2012 6 16 56094 0.0673 0.3386 -0.54585 2012 6 17 56095 0.0676 0.3388 -0.54552 2012 6 18 56096 0.0679 0.3389 -0.54513 2012 6 19 56097 0.0682 0.3391 -0.54470 2012 6 20 56098 0.0685 0.3393 -0.54433 2012 6 21 56099 0.0688 0.3395 -0.54404 2012 6 22 56100 0.0691 0.3396 -0.54383 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) 55716 -67.15 0.21 -11.77 0.10 55717 -67.12 0.30 -11.76 0.15 55718 -67.28 0.30 -11.73 0.15 55719 -67.47 0.30 -11.68 0.15 55720 -67.58 0.15 -11.59 0.07 55721 -67.60 0.15 -11.45 0.07 55722 -67.66 0.15 -11.25 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55716 -0.186 0.084 -0.156 0.100 55717 -0.187 0.119 -0.151 0.150 55718 -0.194 0.119 -0.130 0.150 55719 -0.198 0.119 -0.122 0.150 55720 -0.211 0.060 -0.118 0.070 55721 -0.223 0.060 -0.131 0.070 55722 -0.226 0.060 -0.163 0.070 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).