********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 2 June 2011 Vol. XXIV No. 022 ______________________________________________________________________ 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 ********************************************************************** * As of Bulletin A Vol. XXIV, No. 022, on 02 June 2011, we have * * (by mutual agreement) removed the contribution of NRCan, formerly * * EMR Canada, from the combination for UT1-UTC. * ********************************************************************** ________________________________________________________________________ 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 5 27 55708 -.02032 .00009 0.39554 .00009 -0.273881 0.000015 11 5 28 55709 -.01899 .00009 0.39739 .00009 -0.274863 0.000017 11 5 29 55710 -.01794 .00009 0.39901 .00009 -0.275757 0.000019 11 5 30 55711 -.01723 .00009 0.40066 .00009 -0.276559 0.000013 11 5 31 55712 -.01643 .00009 0.40204 .00009 -0.277245 0.000013 11 6 1 55713 -.01529 .00009 0.40327 .00009 -0.277842 0.000011 11 6 2 55714 -.01425 .00009 0.40456 .00009 -0.278413 0.000008 IERS Final Values MJD x y UT1-UTC " " s 11 4 2 55653 -0.0347 0.2806 -0.21320 11 4 3 55654 -0.0362 0.2819 -0.21468 11 4 4 55655 -0.0375 0.2836 -0.21606 11 4 5 55656 -0.0394 0.2854 -0.21725 11 4 6 55657 -0.0414 0.2870 -0.21832 11 4 7 55658 -0.0424 0.2887 -0.21926 11 4 8 55659 -0.0430 0.2909 -0.21999 11 4 9 55660 -0.0434 0.2934 -0.22072 11 4 10 55661 -0.0433 0.2957 -0.22150 11 4 11 55662 -0.0436 0.2977 -0.22234 11 4 12 55663 -0.0439 0.2996 -0.22331 11 4 13 55664 -0.0441 0.3018 -0.22447 11 4 14 55665 -0.0442 0.3042 -0.22581 11 4 15 55666 -0.0441 0.3067 -0.22730 11 4 16 55667 -0.0439 0.3094 -0.22893 11 4 17 55668 -0.0440 0.3119 -0.23059 11 4 18 55669 -0.0443 0.3143 -0.23213 11 4 19 55670 -0.0445 0.3164 -0.23346 11 4 20 55671 -0.0447 0.3184 -0.23456 11 4 21 55672 -0.0449 0.3204 -0.23545 11 4 22 55673 -0.0451 0.3222 -0.23619 11 4 23 55674 -0.0452 0.3239 -0.23691 11 4 24 55675 -0.0458 0.3258 -0.23770 11 4 25 55676 -0.0462 0.3275 -0.23856 11 4 26 55677 -0.0460 0.3292 -0.23952 11 4 27 55678 -0.0458 0.3313 -0.24056 11 4 28 55679 -0.0453 0.3336 -0.24165 11 4 29 55680 -0.0451 0.3361 -0.24277 11 4 30 55681 -0.0447 0.3385 -0.24388 11 5 1 55682 -0.0440 0.3411 -0.24492 _______________________________________________________________________ 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 = 0.0830 - 0.0495 cos A + 0.1099 sin A - 0.0453 cos C - 0.0322 sin C y = 0.3329 + 0.0995 cos A + 0.0448 sin A - 0.0322 cos C + 0.0453 sin C UT1-UTC = -0.2610 - 0.00066 (MJD - 55722) - (UT2-UT1) where A = 2*pi*(MJD-55714)/365.25 and C = 2*pi*(MJD-55714)/435. TAI-UTC(MJD 55715) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55714)**0.80 S t = 0.00025 (MJD-55714)**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 3 55715 -0.0129 0.4059 -0.27897 2011 6 4 55716 -0.0118 0.4071 -0.27955 2011 6 5 55717 -0.0106 0.4084 -0.28023 2011 6 6 55718 -0.0094 0.4097 -0.28106 2011 6 7 55719 -0.0081 0.4110 -0.28202 2011 6 8 55720 -0.0068 0.4123 -0.28311 2011 6 9 55721 -0.0054 0.4135 -0.28426 2011 6 10 55722 -0.0040 0.4147 -0.28541 2011 6 11 55723 -0.0026 0.4159 -0.28649 2011 6 12 55724 -0.0012 0.4171 -0.28744 2011 6 13 55725 0.0003 0.4183 -0.28822 2011 6 14 55726 0.0018 0.4194 -0.28882 2011 6 15 55727 0.0033 0.4205 -0.28927 2011 6 16 55728 0.0048 0.4216 -0.28963 2011 6 17 55729 0.0063 0.4227 -0.28998 2011 6 18 55730 0.0079 0.4237 -0.29035 2011 6 19 55731 0.0094 0.4248 -0.29078 2011 6 20 55732 0.0110 0.4258 -0.29128 2011 6 21 55733 0.0126 0.4267 -0.29184 2011 6 22 55734 0.0142 0.4277 -0.29244 2011 6 23 55735 0.0158 0.4286 -0.29305 2011 6 24 55736 0.0175 0.4295 -0.29361 2011 6 25 55737 0.0191 0.4304 -0.29407 2011 6 26 55738 0.0207 0.4312 -0.29440 2011 6 27 55739 0.0224 0.4321 -0.29459 2011 6 28 55740 0.0241 0.4329 -0.29465 2011 6 29 55741 0.0257 0.4337 -0.29462 2011 6 30 55742 0.0274 0.4344 -0.29452 2011 7 1 55743 0.0291 0.4351 -0.29443 2011 7 2 55744 0.0308 0.4359 -0.29441 2011 7 3 55745 0.0325 0.4365 -0.29453 2011 7 4 55746 0.0342 0.4372 -0.29483 2011 7 5 55747 0.0359 0.4378 -0.29529 2011 7 6 55748 0.0376 0.4384 -0.29585 2011 7 7 55749 0.0393 0.4390 -0.29643 2011 7 8 55750 0.0411 0.4395 -0.29692 2011 7 9 55751 0.0428 0.4401 -0.29722 2011 7 10 55752 0.0445 0.4406 -0.29730 2011 7 11 55753 0.0462 0.4410 -0.29717 2011 7 12 55754 0.0480 0.4415 -0.29688 2011 7 13 55755 0.0497 0.4419 -0.29649 2011 7 14 55756 0.0515 0.4423 -0.29610 2011 7 15 55757 0.0532 0.4427 -0.29578 2011 7 16 55758 0.0549 0.4430 -0.29558 2011 7 17 55759 0.0567 0.4433 -0.29550 2011 7 18 55760 0.0584 0.4436 -0.29551 2011 7 19 55761 0.0601 0.4439 -0.29557 2011 7 20 55762 0.0619 0.4441 -0.29563 2011 7 21 55763 0.0636 0.4443 -0.29563 2011 7 22 55764 0.0653 0.4445 -0.29555 2011 7 23 55765 0.0671 0.4447 -0.29535 2011 7 24 55766 0.0688 0.4448 -0.29503 2011 7 25 55767 0.0705 0.4449 -0.29458 2011 7 26 55768 0.0722 0.4450 -0.29406 2011 7 27 55769 0.0739 0.4451 -0.29349 2011 7 28 55770 0.0756 0.4451 -0.29295 2011 7 29 55771 0.0773 0.4451 -0.29252 2011 7 30 55772 0.0790 0.4451 -0.29225 2011 7 31 55773 0.0807 0.4450 -0.29220 2011 8 1 55774 0.0824 0.4450 -0.29239 2011 8 2 55775 0.0841 0.4449 -0.29274 2011 8 3 55776 0.0857 0.4448 -0.29318 2011 8 4 55777 0.0874 0.4446 -0.29359 2011 8 5 55778 0.0890 0.4445 -0.29385 2011 8 6 55779 0.0907 0.4443 -0.29392 2011 8 7 55780 0.0923 0.4441 -0.29377 2011 8 8 55781 0.0939 0.4438 -0.29345 2011 8 9 55782 0.0955 0.4436 -0.29304 2011 8 10 55783 0.0971 0.4433 -0.29262 2011 8 11 55784 0.0987 0.4430 -0.29225 2011 8 12 55785 0.1003 0.4427 -0.29200 2011 8 13 55786 0.1019 0.4423 -0.29188 2011 8 14 55787 0.1034 0.4420 -0.29187 2011 8 15 55788 0.1050 0.4416 -0.29196 2011 8 16 55789 0.1065 0.4411 -0.29210 2011 8 17 55790 0.1080 0.4407 -0.29222 2011 8 18 55791 0.1095 0.4402 -0.29229 2011 8 19 55792 0.1110 0.4398 -0.29228 2011 8 20 55793 0.1125 0.4393 -0.29216 2011 8 21 55794 0.1140 0.4387 -0.29195 2011 8 22 55795 0.1154 0.4382 -0.29165 2011 8 23 55796 0.1168 0.4376 -0.29132 2011 8 24 55797 0.1183 0.4370 -0.29099 2011 8 25 55798 0.1197 0.4364 -0.29075 2011 8 26 55799 0.1210 0.4358 -0.29066 2011 8 27 55800 0.1224 0.4352 -0.29080 2011 8 28 55801 0.1238 0.4345 -0.29119 2011 8 29 55802 0.1251 0.4338 -0.29183 2011 8 30 55803 0.1264 0.4331 -0.29262 2011 8 31 55804 0.1277 0.4324 -0.29345 2011 9 1 55805 0.1290 0.4317 -0.29419 2011 9 2 55806 0.1303 0.4309 -0.29473 2011 9 3 55807 0.1315 0.4301 -0.29505 2011 9 4 55808 0.1328 0.4293 -0.29517 2011 9 5 55809 0.1340 0.4285 -0.29516 2011 9 6 55810 0.1352 0.4277 -0.29513 2011 9 7 55811 0.1364 0.4269 -0.29514 2011 9 8 55812 0.1375 0.4260 -0.29525 2011 9 9 55813 0.1387 0.4251 -0.29548 2011 9 10 55814 0.1398 0.4242 -0.29585 2011 9 11 55815 0.1409 0.4233 -0.29632 2011 9 12 55816 0.1420 0.4224 -0.29685 2011 9 13 55817 0.1430 0.4215 -0.29740 2011 9 14 55818 0.1441 0.4205 -0.29792 2011 9 15 55819 0.1451 0.4196 -0.29837 2011 9 16 55820 0.1461 0.4186 -0.29873 2011 9 17 55821 0.1471 0.4176 -0.29899 2011 9 18 55822 0.1480 0.4166 -0.29917 2011 9 19 55823 0.1490 0.4156 -0.29939 2011 9 20 55824 0.1499 0.4146 -0.29961 2011 9 21 55825 0.1508 0.4135 -0.29987 2011 9 22 55826 0.1517 0.4125 -0.30025 2011 9 23 55827 0.1525 0.4114 -0.30083 2011 9 24 55828 0.1534 0.4103 -0.30164 2011 9 25 55829 0.1542 0.4093 -0.30271 2011 9 26 55830 0.1550 0.4082 -0.30399 2011 9 27 55831 0.1557 0.4071 -0.30539 2011 9 28 55832 0.1565 0.4059 -0.30677 2011 9 29 55833 0.1572 0.4048 -0.30800 2011 9 30 55834 0.1579 0.4037 -0.30901 2011 10 1 55835 0.1586 0.4026 -0.30979 2011 10 2 55836 0.1592 0.4014 -0.31040 2011 10 3 55837 0.1599 0.4003 -0.31094 2011 10 4 55838 0.1605 0.3991 -0.31149 2011 10 5 55839 0.1611 0.3979 -0.31212 2011 10 6 55840 0.1616 0.3967 -0.31286 2011 10 7 55841 0.1622 0.3956 -0.31371 2011 10 8 55842 0.1627 0.3944 -0.31465 2011 10 9 55843 0.1632 0.3932 -0.31565 2011 10 10 55844 0.1637 0.3920 -0.31667 2011 10 11 55845 0.1642 0.3908 -0.31766 2011 10 12 55846 0.1646 0.3896 -0.31857 2011 10 13 55847 0.1650 0.3883 -0.31939 2011 10 14 55848 0.1654 0.3871 -0.32010 2011 10 15 55849 0.1658 0.3859 -0.32071 2011 10 16 55850 0.1661 0.3847 -0.32124 2011 10 17 55851 0.1664 0.3835 -0.32174 2011 10 18 55852 0.1667 0.3822 -0.32226 2011 10 19 55853 0.1670 0.3810 -0.32287 2011 10 20 55854 0.1673 0.3798 -0.32361 2011 10 21 55855 0.1675 0.3785 -0.32455 2011 10 22 55856 0.1677 0.3773 -0.32571 2011 10 23 55857 0.1679 0.3760 -0.32709 2011 10 24 55858 0.1681 0.3748 -0.32863 2011 10 25 55859 0.1682 0.3736 -0.33022 2011 10 26 55860 0.1683 0.3723 -0.33173 2011 10 27 55861 0.1685 0.3711 -0.33306 2011 10 28 55862 0.1685 0.3698 -0.33417 2011 10 29 55863 0.1686 0.3686 -0.33508 2011 10 30 55864 0.1686 0.3674 -0.33586 2011 10 31 55865 0.1687 0.3661 -0.33661 2011 11 1 55866 0.1687 0.3649 -0.33741 2011 11 2 55867 0.1686 0.3637 -0.33831 2011 11 3 55868 0.1686 0.3624 -0.33930 2011 11 4 55869 0.1685 0.3612 -0.34037 2011 11 5 55870 0.1684 0.3600 -0.34149 2011 11 6 55871 0.1683 0.3588 -0.34261 2011 11 7 55872 0.1682 0.3575 -0.34369 2011 11 8 55873 0.1681 0.3563 -0.34471 2011 11 9 55874 0.1679 0.3551 -0.34562 2011 11 10 55875 0.1677 0.3539 -0.34641 2011 11 11 55876 0.1675 0.3527 -0.34709 2011 11 12 55877 0.1673 0.3515 -0.34768 2011 11 13 55878 0.1671 0.3503 -0.34822 2011 11 14 55879 0.1668 0.3491 -0.34875 2011 11 15 55880 0.1665 0.3480 -0.34933 2011 11 16 55881 0.1662 0.3468 -0.35002 2011 11 17 55882 0.1659 0.3456 -0.35086 2011 11 18 55883 0.1656 0.3445 -0.35189 2011 11 19 55884 0.1653 0.3433 -0.35310 2011 11 20 55885 0.1649 0.3422 -0.35445 2011 11 21 55886 0.1645 0.3410 -0.35588 2011 11 22 55887 0.1641 0.3399 -0.35728 2011 11 23 55888 0.1637 0.3388 -0.35856 2011 11 24 55889 0.1633 0.3377 -0.35964 2011 11 25 55890 0.1628 0.3366 -0.36051 2011 11 26 55891 0.1624 0.3355 -0.36122 2011 11 27 55892 0.1619 0.3344 -0.36186 2011 11 28 55893 0.1614 0.3333 -0.36251 2011 11 29 55894 0.1609 0.3323 -0.36323 2011 11 30 55895 0.1603 0.3312 -0.36404 2011 12 1 55896 0.1598 0.3302 -0.36492 2011 12 2 55897 0.1593 0.3291 -0.36584 2011 12 3 55898 0.1587 0.3281 -0.36674 2011 12 4 55899 0.1581 0.3271 -0.36759 2011 12 5 55900 0.1575 0.3261 -0.36835 2011 12 6 55901 0.1569 0.3251 -0.36898 2011 12 7 55902 0.1563 0.3241 -0.36948 2011 12 8 55903 0.1556 0.3231 -0.36984 2011 12 9 55904 0.1550 0.3221 -0.37008 2011 12 10 55905 0.1543 0.3212 -0.37024 2011 12 11 55906 0.1537 0.3202 -0.37037 2011 12 12 55907 0.1530 0.3193 -0.37055 2011 12 13 55908 0.1523 0.3184 -0.37082 2011 12 14 55909 0.1516 0.3175 -0.37125 2011 12 15 55910 0.1509 0.3166 -0.37186 2011 12 16 55911 0.1501 0.3157 -0.37265 2011 12 17 55912 0.1494 0.3149 -0.37361 2011 12 18 55913 0.1486 0.3140 -0.37466 2011 12 19 55914 0.1479 0.3132 -0.37572 2011 12 20 55915 0.1471 0.3123 -0.37672 2011 12 21 55916 0.1464 0.3115 -0.37759 2011 12 22 55917 0.1456 0.3107 -0.37830 2011 12 23 55918 0.1448 0.3099 -0.37888 2011 12 24 55919 0.1440 0.3091 -0.37937 2011 12 25 55920 0.1432 0.3084 -0.37987 2011 12 26 55921 0.1424 0.3076 -0.38045 2011 12 27 55922 0.1415 0.3069 -0.38113 2011 12 28 55923 0.1407 0.3062 -0.38192 2011 12 29 55924 0.1399 0.3055 -0.38279 2011 12 30 55925 0.1390 0.3048 -0.38369 2011 12 31 55926 0.1382 0.3041 -0.38458 2012 1 1 55927 0.1373 0.3034 -0.38542 2012 1 2 55928 0.1365 0.3028 -0.38619 2012 1 3 55929 0.1356 0.3021 -0.38684 2012 1 4 55930 0.1347 0.3015 -0.38735 2012 1 5 55931 0.1339 0.3009 -0.38773 2012 1 6 55932 0.1330 0.3003 -0.38800 2012 1 7 55933 0.1321 0.2997 -0.38821 2012 1 8 55934 0.1312 0.2991 -0.38845 2012 1 9 55935 0.1303 0.2986 -0.38883 2012 1 10 55936 0.1294 0.2980 -0.38942 2012 1 11 55937 0.1285 0.2975 -0.39025 2012 1 12 55938 0.1276 0.2970 -0.39131 2012 1 13 55939 0.1267 0.2965 -0.39256 2012 1 14 55940 0.1258 0.2960 -0.39387 2012 1 15 55941 0.1249 0.2955 -0.39515 2012 1 16 55942 0.1240 0.2951 -0.39633 2012 1 17 55943 0.1231 0.2946 -0.39730 2012 1 18 55944 0.1222 0.2942 -0.39806 2012 1 19 55945 0.1213 0.2938 -0.39860 2012 1 20 55946 0.1204 0.2934 -0.39902 2012 1 21 55947 0.1195 0.2930 -0.39941 2012 1 22 55948 0.1186 0.2926 -0.39988 2012 1 23 55949 0.1177 0.2923 -0.40049 2012 1 24 55950 0.1168 0.2919 -0.40125 2012 1 25 55951 0.1159 0.2916 -0.40213 2012 1 26 55952 0.1150 0.2913 -0.40309 2012 1 27 55953 0.1141 0.2910 -0.40410 2012 1 28 55954 0.1132 0.2907 -0.40510 2012 1 29 55955 0.1123 0.2904 -0.40605 2012 1 30 55956 0.1114 0.2901 -0.40692 2012 1 31 55957 0.1105 0.2899 -0.40764 2012 2 1 55958 0.1097 0.2897 -0.40827 2012 2 2 55959 0.1088 0.2894 -0.40882 2012 2 3 55960 0.1079 0.2892 -0.40937 2012 2 4 55961 0.1070 0.2890 -0.41001 2012 2 5 55962 0.1062 0.2889 -0.41072 2012 2 6 55963 0.1053 0.2887 -0.41163 2012 2 7 55964 0.1044 0.2885 -0.41271 2012 2 8 55965 0.1036 0.2884 -0.41400 2012 2 9 55966 0.1027 0.2883 -0.41548 2012 2 10 55967 0.1019 0.2881 -0.41704 2012 2 11 55968 0.1010 0.2880 -0.41863 2012 2 12 55969 0.1002 0.2879 -0.42013 2012 2 13 55970 0.0994 0.2879 -0.42142 2012 2 14 55971 0.0985 0.2878 -0.42245 2012 2 15 55972 0.0977 0.2877 -0.42325 2012 2 16 55973 0.0969 0.2877 -0.42382 2012 2 17 55974 0.0961 0.2877 -0.42429 2012 2 18 55975 0.0953 0.2876 -0.42483 2012 2 19 55976 0.0945 0.2876 -0.42542 2012 2 20 55977 0.0937 0.2876 -0.42613 2012 2 21 55978 0.0930 0.2876 -0.42697 2012 2 22 55979 0.0922 0.2877 -0.42794 2012 2 23 55980 0.0914 0.2877 -0.42894 2012 2 24 55981 0.0907 0.2877 -0.42986 2012 2 25 55982 0.0899 0.2878 -0.43071 2012 2 26 55983 0.0892 0.2879 -0.43141 2012 2 27 55984 0.0885 0.2879 -0.43199 2012 2 28 55985 0.0877 0.2880 -0.43251 2012 2 29 55986 0.0870 0.2881 -0.43296 2012 3 1 55987 0.0863 0.2882 -0.43338 2012 3 2 55988 0.0856 0.2883 -0.43379 2012 3 3 55989 0.0850 0.2885 -0.43426 2012 3 4 55990 0.0843 0.2886 -0.43488 2012 3 5 55991 0.0836 0.2887 -0.43567 2012 3 6 55992 0.0830 0.2889 -0.43671 2012 3 7 55993 0.0823 0.2890 -0.43802 2012 3 8 55994 0.0817 0.2892 -0.43954 2012 3 9 55995 0.0810 0.2894 -0.44116 2012 3 10 55996 0.0804 0.2896 -0.44282 2012 3 11 55997 0.0798 0.2898 -0.44435 2012 3 12 55998 0.0792 0.2900 -0.44565 2012 3 13 55999 0.0786 0.2902 -0.44676 2012 3 14 56000 0.0780 0.2904 -0.44771 2012 3 15 56001 0.0775 0.2906 -0.44862 2012 3 16 56002 0.0769 0.2909 -0.44958 2012 3 17 56003 0.0764 0.2911 -0.45066 2012 3 18 56004 0.0758 0.2913 -0.45185 2012 3 19 56005 0.0753 0.2916 -0.45320 2012 3 20 56006 0.0748 0.2919 -0.45462 2012 3 21 56007 0.0743 0.2921 -0.45609 2012 3 22 56008 0.0738 0.2924 -0.45754 2012 3 23 56009 0.0733 0.2927 -0.45895 2012 3 24 56010 0.0728 0.2929 -0.46032 2012 3 25 56011 0.0724 0.2932 -0.46154 2012 3 26 56012 0.0719 0.2935 -0.46262 2012 3 27 56013 0.0715 0.2938 -0.46362 2012 3 28 56014 0.0710 0.2941 -0.46454 2012 3 29 56015 0.0706 0.2944 -0.46537 2012 3 30 56016 0.0702 0.2947 -0.46623 2012 3 31 56017 0.0698 0.2951 -0.46718 2012 4 1 56018 0.0694 0.2954 -0.46827 2012 4 2 56019 0.0690 0.2957 -0.46959 2012 4 3 56020 0.0687 0.2960 -0.47117 2012 4 4 56021 0.0683 0.2964 -0.47295 2012 4 5 56022 0.0680 0.2967 -0.47487 2012 4 6 56023 0.0676 0.2970 -0.47682 2012 4 7 56024 0.0673 0.2974 -0.47867 2012 4 8 56025 0.0670 0.2977 -0.48039 2012 4 9 56026 0.0667 0.2981 -0.48191 2012 4 10 56027 0.0664 0.2984 -0.48322 2012 4 11 56028 0.0661 0.2988 -0.48440 2012 4 12 56029 0.0658 0.2991 -0.48553 2012 4 13 56030 0.0656 0.2995 -0.48668 2012 4 14 56031 0.0653 0.2999 -0.48792 2012 4 15 56032 0.0651 0.3002 -0.48919 2012 4 16 56033 0.0649 0.3006 -0.49048 2012 4 17 56034 0.0646 0.3009 -0.49174 2012 4 18 56035 0.0644 0.3013 -0.49298 2012 4 19 56036 0.0642 0.3017 -0.49418 2012 4 20 56037 0.0640 0.3020 -0.49532 2012 4 21 56038 0.0639 0.3024 -0.49636 2012 4 22 56039 0.0637 0.3028 -0.49729 2012 4 23 56040 0.0635 0.3031 -0.49811 2012 4 24 56041 0.0634 0.3035 -0.49878 2012 4 25 56042 0.0632 0.3039 -0.49935 2012 4 26 56043 0.0631 0.3043 -0.49989 2012 4 27 56044 0.0630 0.3046 -0.50054 2012 4 28 56045 0.0628 0.3050 -0.50125 2012 4 29 56046 0.0627 0.3054 -0.50218 2012 4 30 56047 0.0626 0.3057 -0.50337 2012 5 1 56048 0.0625 0.3061 -0.50475 2012 5 2 56049 0.0625 0.3065 -0.50629 2012 5 3 56050 0.0624 0.3068 -0.50781 2012 5 4 56051 0.0623 0.3072 -0.50927 2012 5 5 56052 0.0623 0.3075 -0.51052 2012 5 6 56053 0.0622 0.3079 -0.51158 2012 5 7 56054 0.0622 0.3083 -0.51247 2012 5 8 56055 0.0621 0.3086 -0.51320 2012 5 9 56056 0.0621 0.3090 -0.51389 2012 5 10 56057 0.0621 0.3093 -0.51461 2012 5 11 56058 0.0621 0.3097 -0.51538 2012 5 12 56059 0.0621 0.3100 -0.51621 2012 5 13 56060 0.0621 0.3104 -0.51708 2012 5 14 56061 0.0621 0.3107 -0.51801 2012 5 15 56062 0.0621 0.3111 -0.51894 2012 5 16 56063 0.0621 0.3114 -0.51983 2012 5 17 56064 0.0622 0.3117 -0.52065 2012 5 18 56065 0.0622 0.3121 -0.52134 2012 5 19 56066 0.0622 0.3124 -0.52186 2012 5 20 56067 0.0623 0.3127 -0.52229 2012 5 21 56068 0.0623 0.3131 -0.52258 2012 5 22 56069 0.0624 0.3134 -0.52277 2012 5 23 56070 0.0625 0.3137 -0.52290 2012 5 24 56071 0.0625 0.3140 -0.52303 2012 5 25 56072 0.0626 0.3143 -0.52321 2012 5 26 56073 0.0627 0.3146 -0.52350 2012 5 27 56074 0.0628 0.3150 -0.52391 2012 5 28 56075 0.0628 0.3153 -0.52448 2012 5 29 56076 0.0629 0.3156 -0.52519 2012 5 30 56077 0.0630 0.3158 -0.52598 2012 5 31 56078 0.0631 0.3161 -0.52684 2012 6 1 56079 0.0632 0.3164 -0.52772 These predictions are based on all announced leap seconds. IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55653 -65.6 -10.0 55654 -65.5 -10.1 55655 -65.5 -10.5 55656 -65.4 -10.9 55657 -65.2 -11.1 55658 -65.0 -11.2 55659 -64.9 -11.3 55660 -65.0 -11.4 55661 -65.3 -11.5 55662 -65.5 -11.5 55663 -65.4 -11.4 55664 -65.2 -11.5 55665 -65.1 -11.4 55666 -65.1 -11.2 55667 -65.3 -10.8 55668 -65.7 -10.6 55669 -65.9 -10.7 55670 -65.9 -11.0 55671 -65.9 -11.2 55672 -65.7 -11.4 55673 -65.3 -11.5 55674 -65.1 -11.6 55675 -65.1 -11.7 55676 -65.6 -11.7 55677 -66.0 -11.7 55678 -65.9 -11.7 55679 -65.5 -11.6 55680 -65.1 -11.3 55681 -65.0 -11.1 55682 -65.2 -11.2 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55653 -0.03 -0.17 55654 -0.02 -0.20 55655 -0.01 -0.32 55656 0.02 -0.40 55657 0.04 -0.39 55658 0.05 -0.39 55659 0.06 -0.41 55660 0.08 -0.40 55661 0.04 -0.42 55662 -0.01 -0.41 55663 -0.03 -0.30 55664 -0.08 -0.32 55665 -0.16 -0.19 55666 -0.20 -0.19 55667 -0.21 -0.17 55668 -0.22 -0.21 55669 -0.17 -0.21 55670 -0.13 -0.21 55671 -0.17 -0.19 55672 -0.17 -0.30 55673 -0.14 -0.32 55674 -0.18 -0.33 55675 -0.15 -0.39 55676 -0.17 -0.43 55677 -0.16 -0.45 55678 -0.14 -0.42 55679 -0.14 -0.31 55680 -0.15 -0.10 55681 -0.15 -0.02 55682 -0.16 -0.11 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).