********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 13 October 2011 Vol. XXIV No. 041 ______________________________________________________________________ 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 = -0.4 seconds beginning 04 Nov 2011 at 0000 UTC Beginning 1 January 2009: TAI-UTC = 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 10 7 55841 0.18395 .00010 0.36663 .00009 -0.327874 0.000008 11 10 8 55842 0.18496 .00010 0.36540 .00009 -0.329228 0.000015 11 10 9 55843 0.18584 .00009 0.36415 .00009 -0.330625 0.000018 11 10 10 55844 0.18628 .00009 0.36277 .00009 -0.332015 0.000015 11 10 11 55845 0.18630 .00009 0.36129 .00009 -0.333367 0.000014 11 10 12 55846 0.18616 .00010 0.35987 .00009 -0.334635 0.000015 11 10 13 55847 0.18593 .00010 0.35853 .00009 -0.335753 0.000015 _______________________________________________________________________ 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 = 0.0826 + 0.1102 cos A - 0.0285 sin A - 0.0047 cos C + 0.0501 sin C y = 0.3315 - 0.0214 cos A - 0.1029 sin A + 0.0501 cos C + 0.0047 sin C UT1-UTC = -0.3790 - 0.00076 (MJD - 55855) - (UT2-UT1) where A = 2*pi*(MJD-55847)/365.25 and C = 2*pi*(MJD-55847)/435. TAI-UTC(MJD 55848) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55847)**0.80 S t = 0.00025 (MJD-55847)**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 10 14 55848 0.1858 0.3572 -0.33666 2011 10 15 55849 0.1856 0.3558 -0.33738 2011 10 16 55850 0.1854 0.3546 -0.33798 2011 10 17 55851 0.1852 0.3533 -0.33850 2011 10 18 55852 0.1851 0.3521 -0.33901 2011 10 19 55853 0.1849 0.3509 -0.33960 2011 10 20 55854 0.1847 0.3497 -0.34034 2011 10 21 55855 0.1844 0.3485 -0.34128 2011 10 22 55856 0.1841 0.3472 -0.34244 2011 10 23 55857 0.1839 0.3460 -0.34382 2011 10 24 55858 0.1836 0.3448 -0.34538 2011 10 25 55859 0.1832 0.3436 -0.34703 2011 10 26 55860 0.1829 0.3424 -0.34870 2011 10 27 55861 0.1825 0.3412 -0.35027 2011 10 28 55862 0.1822 0.3401 -0.35166 2011 10 29 55863 0.1818 0.3389 -0.35289 2011 10 30 55864 0.1813 0.3377 -0.35401 2011 10 31 55865 0.1809 0.3366 -0.35512 2011 11 1 55866 0.1804 0.3354 -0.35628 2011 11 2 55867 0.1800 0.3343 -0.35754 2011 11 3 55868 0.1795 0.3332 -0.35891 2011 11 4 55869 0.1790 0.3320 -0.36035 2011 11 5 55870 0.1784 0.3309 -0.36183 2011 11 6 55871 0.1779 0.3298 -0.36331 2011 11 7 55872 0.1773 0.3287 -0.36473 2011 11 8 55873 0.1767 0.3276 -0.36608 2011 11 9 55874 0.1761 0.3266 -0.36731 2011 11 10 55875 0.1755 0.3255 -0.36841 2011 11 11 55876 0.1749 0.3245 -0.36936 2011 11 12 55877 0.1742 0.3234 -0.37021 2011 11 13 55878 0.1736 0.3224 -0.37100 2011 11 14 55879 0.1729 0.3214 -0.37178 2011 11 15 55880 0.1722 0.3204 -0.37261 2011 11 16 55881 0.1715 0.3194 -0.37355 2011 11 17 55882 0.1707 0.3184 -0.37464 2011 11 18 55883 0.1700 0.3174 -0.37590 2011 11 19 55884 0.1692 0.3165 -0.37735 2011 11 20 55885 0.1685 0.3155 -0.37895 2011 11 21 55886 0.1677 0.3146 -0.38061 2011 11 22 55887 0.1669 0.3137 -0.38226 2011 11 23 55888 0.1661 0.3128 -0.38377 2011 11 24 55889 0.1652 0.3119 -0.38509 2011 11 25 55890 0.1644 0.3110 -0.38620 2011 11 26 55891 0.1636 0.3102 -0.38715 2011 11 27 55892 0.1627 0.3093 -0.38804 2011 11 28 55893 0.1618 0.3085 -0.38895 2011 11 29 55894 0.1609 0.3077 -0.38995 2011 11 30 55895 0.1600 0.3069 -0.39105 2011 12 1 55896 0.1591 0.3061 -0.39223 2011 12 2 55897 0.1582 0.3053 -0.39345 2011 12 3 55898 0.1573 0.3046 -0.39467 2011 12 4 55899 0.1564 0.3038 -0.39586 2011 12 5 55900 0.1554 0.3031 -0.39698 2011 12 6 55901 0.1545 0.3024 -0.39800 2011 12 7 55902 0.1535 0.3017 -0.39890 2011 12 8 55903 0.1525 0.3010 -0.39969 2011 12 9 55904 0.1515 0.3003 -0.40037 2011 12 10 55905 0.1505 0.2997 -0.40098 2011 12 11 55906 0.1496 0.2991 -0.40157 2011 12 12 55907 0.1485 0.2984 -0.40220 2011 12 13 55908 0.1475 0.2979 -0.40291 2011 12 14 55909 0.1465 0.2973 -0.40377 2011 12 15 55910 0.1455 0.2967 -0.40479 2011 12 16 55911 0.1445 0.2962 -0.40598 2011 12 17 55912 0.1434 0.2956 -0.40730 2011 12 18 55913 0.1424 0.2951 -0.40870 2011 12 19 55914 0.1414 0.2946 -0.41009 2011 12 20 55915 0.1403 0.2941 -0.41139 2011 12 21 55916 0.1393 0.2937 -0.41253 2011 12 22 55917 0.1382 0.2932 -0.41349 2011 12 23 55918 0.1372 0.2928 -0.41430 2011 12 24 55919 0.1361 0.2924 -0.41503 2011 12 25 55920 0.1351 0.2920 -0.41576 2011 12 26 55921 0.1340 0.2916 -0.41657 2011 12 27 55922 0.1329 0.2913 -0.41750 2011 12 28 55923 0.1319 0.2909 -0.41854 2011 12 29 55924 0.1308 0.2906 -0.41966 2011 12 30 55925 0.1297 0.2903 -0.42080 2011 12 31 55926 0.1287 0.2900 -0.42193 2012 1 1 55927 0.1276 0.2897 -0.42301 2012 1 2 55928 0.1265 0.2895 -0.42398 2012 1 3 55929 0.1255 0.2892 -0.42485 2012 1 4 55930 0.1244 0.2890 -0.42560 2012 1 5 55931 0.1233 0.2888 -0.42624 2012 1 6 55932 0.1223 0.2886 -0.42681 2012 1 7 55933 0.1212 0.2884 -0.42735 2012 1 8 55934 0.1202 0.2883 -0.42794 2012 1 9 55935 0.1191 0.2881 -0.42862 2012 1 10 55936 0.1181 0.2880 -0.42945 2012 1 11 55937 0.1170 0.2879 -0.43046 2012 1 12 55938 0.1160 0.2878 -0.43167 2012 1 13 55939 0.1149 0.2878 -0.43302 2012 1 14 55940 0.1139 0.2877 -0.43446 2012 1 15 55941 0.1128 0.2877 -0.43590 2012 1 16 55942 0.1118 0.2876 -0.43725 2012 1 17 55943 0.1108 0.2876 -0.43844 2012 1 18 55944 0.1098 0.2876 -0.43946 2012 1 19 55945 0.1088 0.2877 -0.44032 2012 1 20 55946 0.1078 0.2877 -0.44108 2012 1 21 55947 0.1068 0.2878 -0.44181 2012 1 22 55948 0.1058 0.2878 -0.44260 2012 1 23 55949 0.1048 0.2879 -0.44350 2012 1 24 55950 0.1038 0.2880 -0.44452 2012 1 25 55951 0.1029 0.2882 -0.44564 2012 1 26 55952 0.1019 0.2883 -0.44682 2012 1 27 55953 0.1009 0.2885 -0.44799 2012 1 28 55954 0.1000 0.2886 -0.44912 2012 1 29 55955 0.0991 0.2888 -0.45017 2012 1 30 55956 0.0981 0.2890 -0.45111 2012 1 31 55957 0.0972 0.2892 -0.45194 2012 2 1 55958 0.0963 0.2894 -0.45266 2012 2 2 55959 0.0954 0.2897 -0.45330 2012 2 3 55960 0.0945 0.2899 -0.45390 2012 2 4 55961 0.0937 0.2902 -0.45453 2012 2 5 55962 0.0928 0.2905 -0.45523 2012 2 6 55963 0.0919 0.2908 -0.45607 2012 2 7 55964 0.0911 0.2911 -0.45711 2012 2 8 55965 0.0903 0.2914 -0.45835 2012 2 9 55966 0.0894 0.2917 -0.45979 2012 2 10 55967 0.0886 0.2921 -0.46135 2012 2 11 55968 0.0878 0.2924 -0.46295 2012 2 12 55969 0.0870 0.2928 -0.46448 2012 2 13 55970 0.0863 0.2932 -0.46586 2012 2 14 55971 0.0855 0.2936 -0.46705 2012 2 15 55972 0.0847 0.2940 -0.46807 2012 2 16 55973 0.0840 0.2944 -0.46897 2012 2 17 55974 0.0833 0.2948 -0.46984 2012 2 18 55975 0.0826 0.2953 -0.47074 2012 2 19 55976 0.0819 0.2957 -0.47174 2012 2 20 55977 0.0812 0.2962 -0.47287 2012 2 21 55978 0.0805 0.2967 -0.47412 2012 2 22 55979 0.0799 0.2971 -0.47546 2012 2 23 55980 0.0792 0.2976 -0.47684 2012 2 24 55981 0.0786 0.2981 -0.47821 2012 2 25 55982 0.0780 0.2986 -0.47950 2012 2 26 55983 0.0774 0.2992 -0.48071 2012 2 27 55984 0.0768 0.2997 -0.48180 2012 2 28 55985 0.0762 0.3002 -0.48278 2012 2 29 55986 0.0756 0.3008 -0.48366 2012 3 1 55987 0.0751 0.3013 -0.48450 2012 3 2 55988 0.0746 0.3019 -0.48532 2012 3 3 55989 0.0741 0.3025 -0.48619 2012 3 4 55990 0.0736 0.3030 -0.48718 2012 3 5 55991 0.0731 0.3036 -0.48834 2012 3 6 55992 0.0726 0.3042 -0.48971 2012 3 7 55993 0.0722 0.3048 -0.49130 2012 3 8 55994 0.0717 0.3054 -0.49307 2012 3 9 55995 0.0713 0.3060 -0.49493 2012 3 10 55996 0.0709 0.3066 -0.49678 2012 3 11 55997 0.0705 0.3073 -0.49851 2012 3 12 55998 0.0701 0.3079 -0.50004 2012 3 13 55999 0.0698 0.3085 -0.50138 2012 3 14 56000 0.0694 0.3092 -0.50257 2012 3 15 56001 0.0691 0.3098 -0.50368 2012 3 16 56002 0.0688 0.3105 -0.50480 2012 3 17 56003 0.0685 0.3111 -0.50599 2012 3 18 56004 0.0682 0.3118 -0.50729 2012 3 19 56005 0.0679 0.3124 -0.50869 2012 3 20 56006 0.0677 0.3131 -0.51018 2012 3 21 56007 0.0674 0.3138 -0.51172 2012 3 22 56008 0.0672 0.3144 -0.51326 2012 3 23 56009 0.0670 0.3151 -0.51475 2012 3 24 56010 0.0668 0.3158 -0.51615 2012 3 25 56011 0.0667 0.3164 -0.51743 2012 3 26 56012 0.0665 0.3171 -0.51860 2012 3 27 56013 0.0664 0.3178 -0.51967 2012 3 28 56014 0.0662 0.3185 -0.52066 2012 3 29 56015 0.0661 0.3192 -0.52162 2012 3 30 56016 0.0660 0.3198 -0.52260 2012 3 31 56017 0.0660 0.3205 -0.52366 2012 4 1 56018 0.0659 0.3212 -0.52484 2012 4 2 56019 0.0659 0.3219 -0.52621 2012 4 3 56020 0.0658 0.3226 -0.52780 2012 4 4 56021 0.0658 0.3233 -0.52959 2012 4 5 56022 0.0658 0.3239 -0.53153 2012 4 6 56023 0.0658 0.3246 -0.53352 2012 4 7 56024 0.0658 0.3253 -0.53546 2012 4 8 56025 0.0659 0.3260 -0.53724 2012 4 9 56026 0.0659 0.3266 -0.53883 2012 4 10 56027 0.0660 0.3273 -0.54025 2012 4 11 56028 0.0661 0.3280 -0.54158 2012 4 12 56029 0.0662 0.3287 -0.54290 2012 4 13 56030 0.0663 0.3293 -0.54429 2012 4 14 56031 0.0664 0.3300 -0.54581 2012 4 15 56032 0.0666 0.3307 -0.54747 2012 4 16 56033 0.0667 0.3313 -0.54924 2012 4 17 56034 0.0669 0.3320 -0.55112 2012 4 18 56035 0.0671 0.3326 -0.55304 2012 4 19 56036 0.0673 0.3333 -0.55496 2012 4 20 56037 0.0675 0.3339 -0.55683 2012 4 21 56038 0.0677 0.3345 -0.55858 2012 4 22 56039 0.0679 0.3352 -0.56019 2012 4 23 56040 0.0682 0.3358 -0.56163 2012 4 24 56041 0.0684 0.3364 -0.56290 2012 4 25 56042 0.0687 0.3370 -0.56403 2012 4 26 56043 0.0690 0.3377 -0.56505 2012 4 27 56044 0.0693 0.3383 -0.56602 2012 4 28 56045 0.0696 0.3389 -0.56699 2012 4 29 56046 0.0699 0.3395 -0.56801 2012 4 30 56047 0.0702 0.3401 -0.56913 2012 5 1 56048 0.0706 0.3406 -0.57038 2012 5 2 56049 0.0709 0.3412 -0.57174 2012 5 3 56050 0.0713 0.3418 -0.57318 2012 5 4 56051 0.0717 0.3423 -0.57459 2012 5 5 56052 0.0720 0.3429 -0.57590 2012 5 6 56053 0.0724 0.3434 -0.57704 2012 5 7 56054 0.0728 0.3440 -0.57800 2012 5 8 56055 0.0732 0.3445 -0.57884 2012 5 9 56056 0.0737 0.3450 -0.57964 2012 5 10 56057 0.0741 0.3456 -0.58048 2012 5 11 56058 0.0745 0.3461 -0.58142 2012 5 12 56059 0.0750 0.3466 -0.58245 2012 5 13 56060 0.0754 0.3471 -0.58355 2012 5 14 56061 0.0759 0.3476 -0.58466 2012 5 15 56062 0.0764 0.3480 -0.58573 2012 5 16 56063 0.0769 0.3485 -0.58670 2012 5 17 56064 0.0773 0.3490 -0.58753 2012 5 18 56065 0.0778 0.3494 -0.58819 2012 5 19 56066 0.0783 0.3499 -0.58864 2012 5 20 56067 0.0788 0.3503 -0.58891 2012 5 21 56068 0.0794 0.3507 -0.58903 2012 5 22 56069 0.0799 0.3511 -0.58905 2012 5 23 56070 0.0804 0.3515 -0.58900 2012 5 24 56071 0.0809 0.3519 -0.58890 2012 5 25 56072 0.0815 0.3523 -0.58887 2012 5 26 56073 0.0820 0.3527 -0.58899 2012 5 27 56074 0.0826 0.3531 -0.58930 2012 5 28 56075 0.0831 0.3534 -0.58977 2012 5 29 56076 0.0837 0.3538 -0.59037 2012 5 30 56077 0.0842 0.3541 -0.59107 2012 5 31 56078 0.0848 0.3544 -0.59184 2012 6 1 56079 0.0854 0.3547 -0.59266 2012 6 2 56080 0.0859 0.3551 -0.59334 2012 6 3 56081 0.0865 0.3554 -0.59385 2012 6 4 56082 0.0871 0.3556 -0.59417 2012 6 5 56083 0.0877 0.3559 -0.59438 2012 6 6 56084 0.0883 0.3562 -0.59460 2012 6 7 56085 0.0888 0.3564 -0.59489 2012 6 8 56086 0.0894 0.3567 -0.59524 2012 6 9 56087 0.0900 0.3569 -0.59564 2012 6 10 56088 0.0906 0.3571 -0.59599 2012 6 11 56089 0.0912 0.3574 -0.59631 2012 6 12 56090 0.0918 0.3576 -0.59655 2012 6 13 56091 0.0924 0.3578 -0.59664 2012 6 14 56092 0.0929 0.3579 -0.59664 2012 6 15 56093 0.0935 0.3581 -0.59654 2012 6 16 56094 0.0941 0.3583 -0.59634 2012 6 17 56095 0.0947 0.3584 -0.59606 2012 6 18 56096 0.0953 0.3586 -0.59577 2012 6 19 56097 0.0959 0.3587 -0.59547 2012 6 20 56098 0.0965 0.3588 -0.59518 2012 6 21 56099 0.0971 0.3590 -0.59490 2012 6 22 56100 0.0976 0.3591 -0.59468 2012 6 23 56101 0.0982 0.3592 -0.59462 2012 6 24 56102 0.0988 0.3592 -0.59468 2012 6 25 56103 0.0994 0.3593 -0.59485 2012 6 26 56104 0.0999 0.3594 -0.59508 2012 6 27 56105 0.1005 0.3594 -0.59533 2012 6 28 56106 0.1011 0.3595 -0.59553 2012 6 29 56107 0.1016 0.3595 -0.59562 2012 6 30 56108 0.1022 0.3595 -0.59555 2012 7 1 56109 0.1027 0.3595 -0.59532 2012 7 2 56110 0.1033 0.3595 -0.59493 2012 7 3 56111 0.1038 0.3595 -0.59453 2012 7 4 56112 0.1044 0.3595 -0.59419 2012 7 5 56113 0.1049 0.3595 -0.59396 2012 7 6 56114 0.1054 0.3595 -0.59394 2012 7 7 56115 0.1059 0.3594 -0.59403 2012 7 8 56116 0.1065 0.3594 -0.59414 2012 7 9 56117 0.1070 0.3593 -0.59420 2012 7 10 56118 0.1075 0.3593 -0.59418 2012 7 11 56119 0.1080 0.3592 -0.59407 2012 7 12 56120 0.1084 0.3591 -0.59384 2012 7 13 56121 0.1089 0.3590 -0.59345 2012 7 14 56122 0.1094 0.3589 -0.59294 2012 7 15 56123 0.1099 0.3588 -0.59234 2012 7 16 56124 0.1103 0.3587 -0.59168 2012 7 17 56125 0.1108 0.3586 -0.59099 2012 7 18 56126 0.1112 0.3584 -0.59034 2012 7 19 56127 0.1117 0.3583 -0.58974 2012 7 20 56128 0.1121 0.3581 -0.58923 2012 7 21 56129 0.1125 0.3580 -0.58893 2012 7 22 56130 0.1129 0.3578 -0.58883 2012 7 23 56131 0.1133 0.3577 -0.58892 2012 7 24 56132 0.1137 0.3575 -0.58909 2012 7 25 56133 0.1141 0.3573 -0.58926 2012 7 26 56134 0.1145 0.3571 -0.58935 2012 7 27 56135 0.1149 0.3569 -0.58929 2012 7 28 56136 0.1152 0.3567 -0.58910 2012 7 29 56137 0.1156 0.3565 -0.58877 2012 7 30 56138 0.1159 0.3563 -0.58833 2012 7 31 56139 0.1162 0.3561 -0.58788 2012 8 1 56140 0.1165 0.3559 -0.58753 2012 8 2 56141 0.1169 0.3556 -0.58728 2012 8 3 56142 0.1172 0.3554 -0.58719 2012 8 4 56143 0.1174 0.3552 -0.58720 2012 8 5 56144 0.1177 0.3549 -0.58722 2012 8 6 56145 0.1180 0.3547 -0.58721 2012 8 7 56146 0.1182 0.3544 -0.58716 2012 8 8 56147 0.1185 0.3542 -0.58703 2012 8 9 56148 0.1187 0.3539 -0.58677 2012 8 10 56149 0.1189 0.3537 -0.58636 2012 8 11 56150 0.1191 0.3534 -0.58591 2012 8 12 56151 0.1193 0.3531 -0.58534 2012 8 13 56152 0.1195 0.3528 -0.58485 2012 8 14 56153 0.1197 0.3526 -0.58441 2012 8 15 56154 0.1199 0.3523 -0.58406 2012 8 16 56155 0.1200 0.3520 -0.58378 2012 8 17 56156 0.1202 0.3517 -0.58367 2012 8 18 56157 0.1203 0.3514 -0.58375 2012 8 19 56158 0.1204 0.3512 -0.58399 2012 8 20 56159 0.1205 0.3509 -0.58431 2012 8 21 56160 0.1206 0.3506 -0.58458 2012 8 22 56161 0.1207 0.3503 -0.58480 2012 8 23 56162 0.1208 0.3500 -0.58495 2012 8 24 56163 0.1209 0.3497 -0.58496 2012 8 25 56164 0.1209 0.3494 -0.58485 2012 8 26 56165 0.1209 0.3491 -0.58463 2012 8 27 56166 0.1210 0.3488 -0.58445 2012 8 28 56167 0.1210 0.3485 -0.58441 2012 8 29 56168 0.1210 0.3482 -0.58450 2012 8 30 56169 0.1210 0.3480 -0.58479 2012 8 31 56170 0.1210 0.3477 -0.58527 2012 9 1 56171 0.1209 0.3474 -0.58587 2012 9 2 56172 0.1209 0.3471 -0.58645 2012 9 3 56173 0.1208 0.3468 -0.58698 2012 9 4 56174 0.1208 0.3465 -0.58740 2012 9 5 56175 0.1207 0.3462 -0.58767 2012 9 6 56176 0.1206 0.3459 -0.58780 2012 9 7 56177 0.1205 0.3456 -0.58785 2012 9 8 56178 0.1204 0.3454 -0.58788 2012 9 9 56179 0.1203 0.3451 -0.58792 2012 9 10 56180 0.1201 0.3448 -0.58801 2012 9 11 56181 0.1200 0.3445 -0.58818 2012 9 12 56182 0.1198 0.3443 -0.58854 2012 9 13 56183 0.1197 0.3440 -0.58908 2012 9 14 56184 0.1195 0.3438 -0.58975 2012 9 15 56185 0.1193 0.3435 -0.59058 2012 9 16 56186 0.1191 0.3432 -0.59155 2012 9 17 56187 0.1189 0.3430 -0.59260 2012 9 18 56188 0.1187 0.3427 -0.59359 2012 9 19 56189 0.1184 0.3425 -0.59447 2012 9 20 56190 0.1182 0.3423 -0.59519 2012 9 21 56191 0.1179 0.3420 -0.59581 2012 9 22 56192 0.1177 0.3418 -0.59642 2012 9 23 56193 0.1174 0.3416 -0.59701 2012 9 24 56194 0.1171 0.3414 -0.59771 2012 9 25 56195 0.1168 0.3412 -0.59849 2012 9 26 56196 0.1165 0.3410 -0.59938 2012 9 27 56197 0.1162 0.3408 -0.60034 2012 9 28 56198 0.1159 0.3406 -0.60132 2012 9 29 56199 0.1156 0.3404 -0.60228 2012 9 30 56200 0.1153 0.3402 -0.60322 2012 10 1 56201 0.1149 0.3400 -0.60412 2012 10 2 56202 0.1146 0.3399 -0.60501 2012 10 3 56203 0.1142 0.3397 -0.60581 2012 10 4 56204 0.1138 0.3395 -0.60658 2012 10 5 56205 0.1135 0.3394 -0.60730 2012 10 6 56206 0.1131 0.3393 -0.60796 2012 10 7 56207 0.1127 0.3391 -0.60860 2012 10 8 56208 0.1123 0.3390 -0.60931 2012 10 9 56209 0.1119 0.3389 -0.61006 2012 10 10 56210 0.1115 0.3388 -0.61092 2012 10 11 56211 0.1111 0.3387 -0.61190 2012 10 12 56212 0.1106 0.3386 -0.61303 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) 55827 -78.78 0.30 -10.75 0.03 55828 -78.40 0.30 -10.71 0.03 55829 -78.29 0.30 -10.69 0.03 55830 -78.43 0.30 -10.55 0.03 55831 -78.61 0.30 -10.34 0.03 55832 -78.62 0.30 -10.25 0.03 55833 -78.45 0.30 -10.27 0.03 55834 -78.34 0.30 -10.22 0.15 55835 -78.49 0.30 -10.05 0.15 55836 -78.77 0.30 -9.92 0.01 55837 -78.77 0.30 -10.02 0.01 55838 -78.36 0.30 -10.22 0.01 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55827 -0.003 0.119 0.178 0.030 55828 0.001 0.119 0.181 0.030 55829 0.000 0.119 0.191 0.030 55830 0.001 0.119 0.204 0.030 55831 0.012 0.119 0.231 0.030 55832 0.019 0.119 0.251 0.030 55833 0.010 0.119 0.245 0.030 55834 0.005 0.119 0.204 0.150 55835 0.030 0.119 0.158 0.150 55836 0.053 0.119 0.179 0.010 55837 0.053 0.119 0.222 0.010 55838 0.042 0.119 0.248 0.010 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).