********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 October 2011 Vol. XXIV No. 043 ______________________________________________________________________ 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 21 55855 0.18679 .00010 0.34533 .00009 -0.341261 0.000011 11 10 22 55856 0.18703 .00010 0.34388 .00009 -0.342356 0.000010 11 10 23 55857 0.18708 .00010 0.34268 .00010 -0.343674 0.000009 11 10 24 55858 0.18734 .00010 0.34161 .00010 -0.345154 0.000007 11 10 25 55859 0.18767 .00010 0.34040 .00010 -0.346722 0.000007 11 10 26 55860 0.18773 .00010 0.33883 .00009 -0.348268 0.000007 11 10 27 55861 0.18752 .00009 0.33699 .00010 -0.349647 0.000006 _______________________________________________________________________ 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 = 0.0869 + 0.1013 cos A - 0.0568 sin A + 0.0026 cos C + 0.0517 sin C y = 0.3344 - 0.0479 cos A - 0.0968 sin A + 0.0517 cos C - 0.0026 sin C UT1-UTC = -0.3843 - 0.00078 (MJD - 55869) - (UT2-UT1) where A = 2*pi*(MJD-55861)/365.25 and C = 2*pi*(MJD-55861)/435. TAI-UTC(MJD 55862) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55861)**0.80 S t = 0.00025 (MJD-55861)**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 28 55862 0.1874 0.3353 -0.35084 2011 10 29 55863 0.1872 0.3336 -0.35184 2011 10 30 55864 0.1869 0.3320 -0.35270 2011 10 31 55865 0.1865 0.3306 -0.35354 2011 11 1 55866 0.1862 0.3292 -0.35444 2011 11 2 55867 0.1857 0.3279 -0.35546 2011 11 3 55868 0.1852 0.3267 -0.35663 2011 11 4 55869 0.1847 0.3254 -0.35789 2011 11 5 55870 0.1841 0.3241 -0.35919 2011 11 6 55871 0.1835 0.3229 -0.36045 2011 11 7 55872 0.1829 0.3217 -0.36164 2011 11 8 55873 0.1823 0.3205 -0.36275 2011 11 9 55874 0.1817 0.3194 -0.36374 2011 11 10 55875 0.1810 0.3182 -0.36458 2011 11 11 55876 0.1803 0.3171 -0.36528 2011 11 12 55877 0.1796 0.3160 -0.36587 2011 11 13 55878 0.1789 0.3149 -0.36640 2011 11 14 55879 0.1781 0.3138 -0.36693 2011 11 15 55880 0.1774 0.3127 -0.36754 2011 11 16 55881 0.1766 0.3117 -0.36831 2011 11 17 55882 0.1758 0.3107 -0.36928 2011 11 18 55883 0.1750 0.3096 -0.37048 2011 11 19 55884 0.1741 0.3086 -0.37190 2011 11 20 55885 0.1733 0.3076 -0.37349 2011 11 21 55886 0.1724 0.3066 -0.37519 2011 11 22 55887 0.1715 0.3057 -0.37687 2011 11 23 55888 0.1706 0.3047 -0.37844 2011 11 24 55889 0.1697 0.3038 -0.37984 2011 11 25 55890 0.1688 0.3029 -0.38104 2011 11 26 55891 0.1679 0.3020 -0.38209 2011 11 27 55892 0.1669 0.3011 -0.38307 2011 11 28 55893 0.1659 0.3002 -0.38406 2011 11 29 55894 0.1650 0.2994 -0.38513 2011 11 30 55895 0.1640 0.2985 -0.38629 2011 12 1 55896 0.1630 0.2977 -0.38751 2011 12 2 55897 0.1620 0.2969 -0.38877 2011 12 3 55898 0.1610 0.2961 -0.39001 2011 12 4 55899 0.1599 0.2953 -0.39120 2011 12 5 55900 0.1589 0.2946 -0.39232 2011 12 6 55901 0.1578 0.2938 -0.39334 2011 12 7 55902 0.1568 0.2931 -0.39423 2011 12 8 55903 0.1557 0.2924 -0.39500 2011 12 9 55904 0.1546 0.2917 -0.39566 2011 12 10 55905 0.1536 0.2910 -0.39626 2011 12 11 55906 0.1525 0.2904 -0.39683 2011 12 12 55907 0.1514 0.2897 -0.39743 2011 12 13 55908 0.1503 0.2891 -0.39813 2011 12 14 55909 0.1492 0.2885 -0.39897 2011 12 15 55910 0.1480 0.2879 -0.39997 2011 12 16 55911 0.1469 0.2874 -0.40113 2011 12 17 55912 0.1458 0.2868 -0.40243 2011 12 18 55913 0.1447 0.2863 -0.40380 2011 12 19 55914 0.1435 0.2858 -0.40517 2011 12 20 55915 0.1424 0.2853 -0.40645 2011 12 21 55916 0.1412 0.2848 -0.40758 2011 12 22 55917 0.1401 0.2844 -0.40853 2011 12 23 55918 0.1389 0.2839 -0.40933 2011 12 24 55919 0.1378 0.2835 -0.41003 2011 12 25 55920 0.1366 0.2831 -0.41074 2011 12 26 55921 0.1355 0.2827 -0.41152 2011 12 27 55922 0.1343 0.2824 -0.41243 2011 12 28 55923 0.1332 0.2820 -0.41343 2011 12 29 55924 0.1320 0.2817 -0.41452 2011 12 30 55925 0.1308 0.2814 -0.41562 2011 12 31 55926 0.1297 0.2811 -0.41669 2012 1 1 55927 0.1285 0.2808 -0.41770 2012 1 2 55928 0.1274 0.2806 -0.41861 2012 1 3 55929 0.1262 0.2804 -0.41940 2012 1 4 55930 0.1250 0.2801 -0.42006 2012 1 5 55931 0.1239 0.2799 -0.42062 2012 1 6 55932 0.1227 0.2798 -0.42110 2012 1 7 55933 0.1216 0.2796 -0.42156 2012 1 8 55934 0.1204 0.2795 -0.42204 2012 1 9 55935 0.1193 0.2793 -0.42262 2012 1 10 55936 0.1181 0.2792 -0.42334 2012 1 11 55937 0.1170 0.2791 -0.42424 2012 1 12 55938 0.1158 0.2791 -0.42533 2012 1 13 55939 0.1147 0.2790 -0.42658 2012 1 14 55940 0.1136 0.2790 -0.42791 2012 1 15 55941 0.1125 0.2790 -0.42925 2012 1 16 55942 0.1113 0.2790 -0.43051 2012 1 17 55943 0.1102 0.2790 -0.43163 2012 1 18 55944 0.1091 0.2790 -0.43259 2012 1 19 55945 0.1080 0.2791 -0.43340 2012 1 20 55946 0.1069 0.2791 -0.43412 2012 1 21 55947 0.1058 0.2792 -0.43484 2012 1 22 55948 0.1048 0.2793 -0.43562 2012 1 23 55949 0.1037 0.2795 -0.43653 2012 1 24 55950 0.1026 0.2796 -0.43757 2012 1 25 55951 0.1016 0.2797 -0.43872 2012 1 26 55952 0.1005 0.2799 -0.43993 2012 1 27 55953 0.0995 0.2801 -0.44115 2012 1 28 55954 0.0985 0.2803 -0.44233 2012 1 29 55955 0.0974 0.2805 -0.44344 2012 1 30 55956 0.0964 0.2808 -0.44445 2012 1 31 55957 0.0954 0.2810 -0.44535 2012 2 1 55958 0.0944 0.2813 -0.44614 2012 2 2 55959 0.0935 0.2816 -0.44686 2012 2 3 55960 0.0925 0.2819 -0.44754 2012 2 4 55961 0.0915 0.2822 -0.44823 2012 2 5 55962 0.0906 0.2825 -0.44901 2012 2 6 55963 0.0897 0.2828 -0.44992 2012 2 7 55964 0.0887 0.2832 -0.45101 2012 2 8 55965 0.0878 0.2836 -0.45232 2012 2 9 55966 0.0869 0.2839 -0.45380 2012 2 10 55967 0.0860 0.2843 -0.45542 2012 2 11 55968 0.0852 0.2847 -0.45706 2012 2 12 55969 0.0843 0.2852 -0.45863 2012 2 13 55970 0.0835 0.2856 -0.46002 2012 2 14 55971 0.0826 0.2861 -0.46123 2012 2 15 55972 0.0818 0.2865 -0.46227 2012 2 16 55973 0.0810 0.2870 -0.46319 2012 2 17 55974 0.0802 0.2875 -0.46407 2012 2 18 55975 0.0794 0.2880 -0.46500 2012 2 19 55976 0.0787 0.2885 -0.46602 2012 2 20 55977 0.0779 0.2890 -0.46718 2012 2 21 55978 0.0772 0.2895 -0.46846 2012 2 22 55979 0.0765 0.2901 -0.46983 2012 2 23 55980 0.0757 0.2906 -0.47124 2012 2 24 55981 0.0751 0.2912 -0.47264 2012 2 25 55982 0.0744 0.2918 -0.47397 2012 2 26 55983 0.0737 0.2924 -0.47521 2012 2 27 55984 0.0731 0.2930 -0.47635 2012 2 28 55985 0.0724 0.2936 -0.47737 2012 2 29 55986 0.0718 0.2942 -0.47831 2012 3 1 55987 0.0712 0.2948 -0.47919 2012 3 2 55988 0.0706 0.2954 -0.48007 2012 3 3 55989 0.0701 0.2961 -0.48100 2012 3 4 55990 0.0695 0.2967 -0.48204 2012 3 5 55991 0.0690 0.2974 -0.48326 2012 3 6 55992 0.0685 0.2980 -0.48469 2012 3 7 55993 0.0680 0.2987 -0.48634 2012 3 8 55994 0.0675 0.2994 -0.48817 2012 3 9 55995 0.0670 0.3001 -0.49010 2012 3 10 55996 0.0666 0.3008 -0.49200 2012 3 11 55997 0.0661 0.3015 -0.49378 2012 3 12 55998 0.0657 0.3022 -0.49536 2012 3 13 55999 0.0653 0.3029 -0.49675 2012 3 14 56000 0.0649 0.3036 -0.49798 2012 3 15 56001 0.0646 0.3043 -0.49913 2012 3 16 56002 0.0642 0.3050 -0.50029 2012 3 17 56003 0.0639 0.3057 -0.50151 2012 3 18 56004 0.0635 0.3065 -0.50284 2012 3 19 56005 0.0632 0.3072 -0.50428 2012 3 20 56006 0.0630 0.3080 -0.50580 2012 3 21 56007 0.0627 0.3087 -0.50737 2012 3 22 56008 0.0624 0.3094 -0.50894 2012 3 23 56009 0.0622 0.3102 -0.51046 2012 3 24 56010 0.0620 0.3110 -0.51189 2012 3 25 56011 0.0618 0.3117 -0.51320 2012 3 26 56012 0.0616 0.3125 -0.51440 2012 3 27 56013 0.0614 0.3132 -0.51549 2012 3 28 56014 0.0613 0.3140 -0.51651 2012 3 29 56015 0.0612 0.3147 -0.51749 2012 3 30 56016 0.0610 0.3155 -0.51848 2012 3 31 56017 0.0609 0.3163 -0.51955 2012 4 1 56018 0.0609 0.3170 -0.52075 2012 4 2 56019 0.0608 0.3178 -0.52213 2012 4 3 56020 0.0607 0.3186 -0.52371 2012 4 4 56021 0.0607 0.3193 -0.52549 2012 4 5 56022 0.0607 0.3201 -0.52741 2012 4 6 56023 0.0607 0.3209 -0.52938 2012 4 7 56024 0.0607 0.3216 -0.53128 2012 4 8 56025 0.0607 0.3224 -0.53301 2012 4 9 56026 0.0608 0.3231 -0.53454 2012 4 10 56027 0.0608 0.3239 -0.53588 2012 4 11 56028 0.0609 0.3246 -0.53709 2012 4 12 56029 0.0610 0.3254 -0.53828 2012 4 13 56030 0.0611 0.3261 -0.53950 2012 4 14 56031 0.0612 0.3269 -0.54080 2012 4 15 56032 0.0614 0.3276 -0.54219 2012 4 16 56033 0.0615 0.3284 -0.54365 2012 4 17 56034 0.0617 0.3291 -0.54515 2012 4 18 56035 0.0619 0.3298 -0.54664 2012 4 19 56036 0.0621 0.3306 -0.54808 2012 4 20 56037 0.0623 0.3313 -0.54945 2012 4 21 56038 0.0625 0.3320 -0.55070 2012 4 22 56039 0.0628 0.3327 -0.55184 2012 4 23 56040 0.0630 0.3334 -0.55287 2012 4 24 56041 0.0633 0.3342 -0.55382 2012 4 25 56042 0.0636 0.3349 -0.55474 2012 4 26 56043 0.0638 0.3355 -0.55568 2012 4 27 56044 0.0642 0.3362 -0.55668 2012 4 28 56045 0.0645 0.3369 -0.55782 2012 4 29 56046 0.0648 0.3376 -0.55914 2012 4 30 56047 0.0652 0.3383 -0.56068 2012 5 1 56048 0.0655 0.3389 -0.56245 2012 5 2 56049 0.0659 0.3396 -0.56444 2012 5 3 56050 0.0663 0.3402 -0.56656 2012 5 4 56051 0.0666 0.3409 -0.56872 2012 5 5 56052 0.0671 0.3415 -0.57079 2012 5 6 56053 0.0675 0.3421 -0.57268 2012 5 7 56054 0.0679 0.3428 -0.57436 2012 5 8 56055 0.0683 0.3434 -0.57586 2012 5 9 56056 0.0688 0.3440 -0.57725 2012 5 10 56057 0.0692 0.3446 -0.57859 2012 5 11 56058 0.0697 0.3452 -0.57994 2012 5 12 56059 0.0702 0.3457 -0.58131 2012 5 13 56060 0.0707 0.3463 -0.58267 2012 5 14 56061 0.0712 0.3469 -0.58399 2012 5 15 56062 0.0717 0.3474 -0.58521 2012 5 16 56063 0.0722 0.3480 -0.58629 2012 5 17 56064 0.0727 0.3485 -0.58721 2012 5 18 56065 0.0732 0.3490 -0.58794 2012 5 19 56066 0.0738 0.3495 -0.58849 2012 5 20 56067 0.0743 0.3500 -0.58887 2012 5 21 56068 0.0749 0.3505 -0.58911 2012 5 22 56069 0.0754 0.3510 -0.58926 2012 5 23 56070 0.0760 0.3515 -0.58937 2012 5 24 56071 0.0766 0.3519 -0.58948 2012 5 25 56072 0.0771 0.3524 -0.58964 2012 5 26 56073 0.0777 0.3528 -0.58988 2012 5 27 56074 0.0783 0.3533 -0.59025 2012 5 28 56075 0.0789 0.3537 -0.59078 2012 5 29 56076 0.0795 0.3541 -0.59147 2012 5 30 56077 0.0801 0.3545 -0.59229 2012 5 31 56078 0.0807 0.3549 -0.59315 2012 6 1 56079 0.0814 0.3553 -0.59396 2012 6 2 56080 0.0820 0.3557 -0.59463 2012 6 3 56081 0.0826 0.3560 -0.59513 2012 6 4 56082 0.0832 0.3564 -0.59552 2012 6 5 56083 0.0839 0.3567 -0.59585 2012 6 6 56084 0.0845 0.3570 -0.59622 2012 6 7 56085 0.0851 0.3574 -0.59669 2012 6 8 56086 0.0858 0.3577 -0.59722 2012 6 9 56087 0.0864 0.3580 -0.59783 2012 6 10 56088 0.0871 0.3582 -0.59845 2012 6 11 56089 0.0877 0.3585 -0.59909 2012 6 12 56090 0.0884 0.3588 -0.59963 2012 6 13 56091 0.0890 0.3590 -0.60000 2012 6 14 56092 0.0897 0.3593 -0.60020 2012 6 15 56093 0.0903 0.3595 -0.60026 2012 6 16 56094 0.0910 0.3597 -0.60007 2012 6 17 56095 0.0916 0.3599 -0.59971 2012 6 18 56096 0.0923 0.3601 -0.59925 2012 6 19 56097 0.0929 0.3603 -0.59873 2012 6 20 56098 0.0936 0.3605 -0.59817 2012 6 21 56099 0.0942 0.3606 -0.59761 2012 6 22 56100 0.0949 0.3608 -0.59715 2012 6 23 56101 0.0955 0.3609 -0.59688 2012 6 24 56102 0.0962 0.3610 -0.59680 2012 6 25 56103 0.0968 0.3612 -0.59686 2012 6 26 56104 0.0974 0.3613 -0.59701 2012 6 27 56105 0.0981 0.3614 -0.59720 2012 6 28 56106 0.0987 0.3614 -0.59739 2012 6 29 56107 0.0993 0.3615 -0.59760 2012 6 30 56108 0.1000 0.3616 -0.59766 2012 7 1 56109 0.1006 0.3616 -0.59757 2012 7 2 56110 0.1012 0.3617 -0.59737 2012 7 3 56111 0.1018 0.3617 -0.59711 2012 7 4 56112 0.1024 0.3617 -0.59694 2012 7 5 56113 0.1030 0.3617 -0.59688 2012 7 6 56114 0.1036 0.3617 -0.59691 2012 7 7 56115 0.1042 0.3617 -0.59700 2012 7 8 56116 0.1048 0.3617 -0.59702 2012 7 9 56117 0.1054 0.3617 -0.59699 2012 7 10 56118 0.1060 0.3616 -0.59686 2012 7 11 56119 0.1066 0.3616 -0.59657 2012 7 12 56120 0.1071 0.3615 -0.59618 2012 7 13 56121 0.1077 0.3615 -0.59569 2012 7 14 56122 0.1082 0.3614 -0.59513 2012 7 15 56123 0.1088 0.3613 -0.59452 2012 7 16 56124 0.1093 0.3612 -0.59395 2012 7 17 56125 0.1098 0.3611 -0.59341 2012 7 18 56126 0.1104 0.3610 -0.59293 2012 7 19 56127 0.1109 0.3609 -0.59251 2012 7 20 56128 0.1114 0.3608 -0.59220 2012 7 21 56129 0.1119 0.3606 -0.59208 2012 7 22 56130 0.1124 0.3605 -0.59209 2012 7 23 56131 0.1129 0.3603 -0.59218 2012 7 24 56132 0.1133 0.3602 -0.59230 2012 7 25 56133 0.1138 0.3600 -0.59237 2012 7 26 56134 0.1143 0.3598 -0.59235 2012 7 27 56135 0.1147 0.3596 -0.59219 2012 7 28 56136 0.1151 0.3594 -0.59189 2012 7 29 56137 0.1156 0.3593 -0.59148 2012 7 30 56138 0.1160 0.3590 -0.59098 2012 7 31 56139 0.1164 0.3588 -0.59053 2012 8 1 56140 0.1168 0.3586 -0.59021 2012 8 2 56141 0.1172 0.3584 -0.59002 2012 8 3 56142 0.1176 0.3582 -0.59007 2012 8 4 56143 0.1179 0.3579 -0.59021 2012 8 5 56144 0.1183 0.3577 -0.59038 2012 8 6 56145 0.1186 0.3574 -0.59047 2012 8 7 56146 0.1190 0.3572 -0.59048 2012 8 8 56147 0.1193 0.3569 -0.59041 2012 8 9 56148 0.1196 0.3567 -0.59021 2012 8 10 56149 0.1199 0.3564 -0.58988 2012 8 11 56150 0.1202 0.3561 -0.58946 2012 8 12 56151 0.1205 0.3559 -0.58899 2012 8 13 56152 0.1207 0.3556 -0.58851 2012 8 14 56153 0.1210 0.3553 -0.58805 2012 8 15 56154 0.1212 0.3550 -0.58767 2012 8 16 56155 0.1215 0.3547 -0.58740 2012 8 17 56156 0.1217 0.3544 -0.58725 2012 8 18 56157 0.1219 0.3541 -0.58732 2012 8 19 56158 0.1221 0.3538 -0.58759 2012 8 20 56159 0.1223 0.3535 -0.58804 2012 8 21 56160 0.1225 0.3532 -0.58851 2012 8 22 56161 0.1226 0.3529 -0.58894 2012 8 23 56162 0.1228 0.3526 -0.58926 2012 8 24 56163 0.1229 0.3523 -0.58941 2012 8 25 56164 0.1230 0.3520 -0.58946 2012 8 26 56165 0.1232 0.3517 -0.58941 2012 8 27 56166 0.1233 0.3514 -0.58933 2012 8 28 56167 0.1233 0.3510 -0.58928 2012 8 29 56168 0.1234 0.3507 -0.58936 2012 8 30 56169 0.1235 0.3504 -0.58956 2012 8 31 56170 0.1235 0.3501 -0.58989 2012 9 1 56171 0.1236 0.3498 -0.59030 2012 9 2 56172 0.1236 0.3494 -0.59070 2012 9 3 56173 0.1236 0.3491 -0.59107 2012 9 4 56174 0.1236 0.3488 -0.59138 2012 9 5 56175 0.1236 0.3485 -0.59162 2012 9 6 56176 0.1236 0.3482 -0.59173 2012 9 7 56177 0.1236 0.3479 -0.59173 2012 9 8 56178 0.1235 0.3476 -0.59170 2012 9 9 56179 0.1235 0.3472 -0.59161 2012 9 10 56180 0.1234 0.3469 -0.59161 2012 9 11 56181 0.1234 0.3466 -0.59172 2012 9 12 56182 0.1233 0.3463 -0.59194 2012 9 13 56183 0.1232 0.3460 -0.59226 2012 9 14 56184 0.1231 0.3457 -0.59276 2012 9 15 56185 0.1229 0.3454 -0.59345 2012 9 16 56186 0.1228 0.3451 -0.59428 2012 9 17 56187 0.1227 0.3448 -0.59515 2012 9 18 56188 0.1225 0.3445 -0.59593 2012 9 19 56189 0.1223 0.3443 -0.59662 2012 9 20 56190 0.1222 0.3440 -0.59722 2012 9 21 56191 0.1220 0.3437 -0.59767 2012 9 22 56192 0.1218 0.3434 -0.59804 2012 9 23 56193 0.1216 0.3432 -0.59834 2012 9 24 56194 0.1213 0.3429 -0.59873 2012 9 25 56195 0.1211 0.3426 -0.59927 2012 9 26 56196 0.1209 0.3424 -0.59993 2012 9 27 56197 0.1206 0.3421 -0.60076 2012 9 28 56198 0.1204 0.3419 -0.60174 2012 9 29 56199 0.1201 0.3417 -0.60279 2012 9 30 56200 0.1198 0.3414 -0.60380 2012 10 1 56201 0.1195 0.3412 -0.60473 2012 10 2 56202 0.1192 0.3410 -0.60553 2012 10 3 56203 0.1189 0.3408 -0.60619 2012 10 4 56204 0.1186 0.3406 -0.60671 2012 10 5 56205 0.1183 0.3404 -0.60717 2012 10 6 56206 0.1179 0.3402 -0.60763 2012 10 7 56207 0.1176 0.3400 -0.60814 2012 10 8 56208 0.1173 0.3398 -0.60871 2012 10 9 56209 0.1169 0.3396 -0.60937 2012 10 10 56210 0.1165 0.3395 -0.61024 2012 10 11 56211 0.1162 0.3393 -0.61128 2012 10 12 56212 0.1158 0.3392 -0.61244 2012 10 13 56213 0.1154 0.3390 -0.61374 2012 10 14 56214 0.1150 0.3389 -0.61514 2012 10 15 56215 0.1146 0.3388 -0.61656 2012 10 16 56216 0.1142 0.3386 -0.61790 2012 10 17 56217 0.1138 0.3385 -0.61909 2012 10 18 56218 0.1134 0.3384 -0.62012 2012 10 19 56219 0.1129 0.3383 -0.62107 2012 10 20 56220 0.1125 0.3383 -0.62204 2012 10 21 56221 0.1121 0.3382 -0.62303 2012 10 22 56222 0.1116 0.3381 -0.62413 2012 10 23 56223 0.1112 0.3381 -0.62532 2012 10 24 56224 0.1108 0.3380 -0.62658 2012 10 25 56225 0.1103 0.3380 -0.62785 2012 10 26 56226 0.1098 0.3379 -0.62906 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) 55839 -77.81 0.30 -10.32 0.05 55840 -77.47 0.30 -10.17 0.05 55841 -77.37 0.30 -9.94 0.05 55842 -77.33 0.23 -9.76 0.14 55843 -77.28 0.13 -9.63 0.07 55844 -77.31 0.13 -9.48 0.07 55845 -77.45 0.30 -9.37 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55839 0.055 0.119 0.202 0.050 55840 0.082 0.119 0.194 0.050 55841 0.093 0.119 0.212 0.050 55842 0.087 0.091 0.243 0.140 55843 0.073 0.052 0.258 0.070 55844 0.047 0.052 0.273 0.070 55845 0.021 0.119 0.281 0.040 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).