********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 October 2011 Vol. XXIV No. 040 ______________________________________________________________________ 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 9 30 55834 0.17984 .00009 0.37865 .00009 -0.320477 0.000006 11 10 1 55835 0.17996 .00009 0.37678 .00009 -0.321627 0.000006 11 10 2 55836 0.18004 .00009 0.37494 .00010 -0.322626 0.000005 11 10 3 55837 0.18022 .00009 0.37313 .00009 -0.323533 0.000005 11 10 4 55838 0.18082 .00009 0.37125 .00009 -0.324450 0.000005 11 10 5 55839 0.18186 .00009 0.36943 .00009 -0.325460 0.000005 11 10 6 55840 0.18307 .00010 0.36789 .00009 -0.326599 0.000005 IERS Final Values MJD x y UT1-UTC " " s 11 8 2 55775 0.1070 0.4450 -0.29165 11 8 3 55776 0.1093 0.4444 -0.29232 11 8 4 55777 0.1118 0.4438 -0.29301 11 8 5 55778 0.1146 0.4432 -0.29360 11 8 6 55779 0.1173 0.4428 -0.29398 11 8 7 55780 0.1193 0.4424 -0.29413 11 8 8 55781 0.1211 0.4418 -0.29410 11 8 9 55782 0.1233 0.4411 -0.29396 11 8 10 55783 0.1256 0.4405 -0.29377 11 8 11 55784 0.1278 0.4401 -0.29359 11 8 12 55785 0.1296 0.4395 -0.29348 11 8 13 55786 0.1315 0.4390 -0.29347 11 8 14 55787 0.1331 0.4385 -0.29355 11 8 15 55788 0.1348 0.4374 -0.29372 11 8 16 55789 0.1367 0.4367 -0.29395 11 8 17 55790 0.1385 0.4360 -0.29419 11 8 18 55791 0.1403 0.4354 -0.29444 11 8 19 55792 0.1419 0.4346 -0.29463 11 8 20 55793 0.1432 0.4338 -0.29471 11 8 21 55794 0.1442 0.4328 -0.29467 11 8 22 55795 0.1455 0.4315 -0.29455 11 8 23 55796 0.1467 0.4305 -0.29440 11 8 24 55797 0.1477 0.4292 -0.29424 11 8 25 55798 0.1488 0.4281 -0.29415 11 8 26 55799 0.1502 0.4270 -0.29421 11 8 27 55800 0.1519 0.4260 -0.29452 11 8 28 55801 0.1536 0.4248 -0.29510 11 8 29 55802 0.1556 0.4235 -0.29591 11 8 30 55803 0.1575 0.4226 -0.29689 11 8 31 55804 0.1592 0.4216 -0.29791 11 9 1 55805 0.1611 0.4208 -0.29888 _______________________________________________________________________ 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 = 0.0803 + 0.1121 cos A - 0.0131 sin A - 0.0078 cos C + 0.0482 sin C y = 0.3286 - 0.0071 cos A - 0.1036 sin A + 0.0482 cos C + 0.0078 sin C UT1-UTC = -0.3753 - 0.00075 (MJD - 55848) - (UT2-UT1) where A = 2*pi*(MJD-55840)/365.25 and C = 2*pi*(MJD-55840)/435. TAI-UTC(MJD 55841) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55840)**0.80 S t = 0.00025 (MJD-55840)**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 7 55841 0.1839 0.3665 -0.32785 2011 10 8 55842 0.1846 0.3653 -0.32917 2011 10 9 55843 0.1851 0.3641 -0.33048 2011 10 10 55844 0.1854 0.3628 -0.33176 2011 10 11 55845 0.1856 0.3614 -0.33298 2011 10 12 55846 0.1858 0.3600 -0.33409 2011 10 13 55847 0.1859 0.3587 -0.33507 2011 10 14 55848 0.1860 0.3574 -0.33592 2011 10 15 55849 0.1861 0.3561 -0.33668 2011 10 16 55850 0.1861 0.3548 -0.33741 2011 10 17 55851 0.1860 0.3536 -0.33816 2011 10 18 55852 0.1859 0.3523 -0.33900 2011 10 19 55853 0.1858 0.3511 -0.33996 2011 10 20 55854 0.1856 0.3498 -0.34107 2011 10 21 55855 0.1855 0.3486 -0.34239 2011 10 22 55856 0.1852 0.3473 -0.34395 2011 10 23 55857 0.1850 0.3461 -0.34572 2011 10 24 55858 0.1847 0.3448 -0.34765 2011 10 25 55859 0.1844 0.3436 -0.34963 2011 10 26 55860 0.1841 0.3424 -0.35152 2011 10 27 55861 0.1837 0.3412 -0.35322 2011 10 28 55862 0.1834 0.3400 -0.35467 2011 10 29 55863 0.1830 0.3388 -0.35591 2011 10 30 55864 0.1826 0.3376 -0.35701 2011 10 31 55865 0.1821 0.3364 -0.35804 2011 11 1 55866 0.1817 0.3352 -0.35910 2011 11 2 55867 0.1812 0.3340 -0.36023 2011 11 3 55868 0.1807 0.3329 -0.36146 2011 11 4 55869 0.1802 0.3317 -0.36276 2011 11 5 55870 0.1796 0.3306 -0.36410 2011 11 6 55871 0.1791 0.3294 -0.36545 2011 11 7 55872 0.1785 0.3283 -0.36676 2011 11 8 55873 0.1779 0.3272 -0.36800 2011 11 9 55874 0.1773 0.3261 -0.36912 2011 11 10 55875 0.1767 0.3250 -0.37013 2011 11 11 55876 0.1760 0.3239 -0.37102 2011 11 12 55877 0.1754 0.3228 -0.37183 2011 11 13 55878 0.1747 0.3218 -0.37257 2011 11 14 55879 0.1740 0.3207 -0.37331 2011 11 15 55880 0.1733 0.3197 -0.37409 2011 11 16 55881 0.1726 0.3186 -0.37498 2011 11 17 55882 0.1718 0.3176 -0.37604 2011 11 18 55883 0.1710 0.3166 -0.37728 2011 11 19 55884 0.1703 0.3156 -0.37872 2011 11 20 55885 0.1695 0.3147 -0.38031 2011 11 21 55886 0.1687 0.3137 -0.38198 2011 11 22 55887 0.1679 0.3127 -0.38362 2011 11 23 55888 0.1670 0.3118 -0.38514 2011 11 24 55889 0.1662 0.3109 -0.38647 2011 11 25 55890 0.1653 0.3100 -0.38761 2011 11 26 55891 0.1645 0.3091 -0.38860 2011 11 27 55892 0.1636 0.3082 -0.38953 2011 11 28 55893 0.1627 0.3073 -0.39047 2011 11 29 55894 0.1618 0.3065 -0.39149 2011 11 30 55895 0.1609 0.3057 -0.39260 2011 12 1 55896 0.1599 0.3048 -0.39379 2011 12 2 55897 0.1590 0.3040 -0.39503 2011 12 3 55898 0.1581 0.3033 -0.39626 2011 12 4 55899 0.1571 0.3025 -0.39745 2011 12 5 55900 0.1561 0.3017 -0.39857 2011 12 6 55901 0.1552 0.3010 -0.39957 2011 12 7 55902 0.1542 0.3003 -0.40046 2011 12 8 55903 0.1532 0.2996 -0.40123 2011 12 9 55904 0.1522 0.2989 -0.40190 2011 12 10 55905 0.1512 0.2982 -0.40250 2011 12 11 55906 0.1501 0.2975 -0.40308 2011 12 12 55907 0.1491 0.2969 -0.40370 2011 12 13 55908 0.1481 0.2963 -0.40442 2011 12 14 55909 0.1470 0.2957 -0.40529 2011 12 15 55910 0.1460 0.2951 -0.40633 2011 12 16 55911 0.1449 0.2945 -0.40755 2011 12 17 55912 0.1439 0.2939 -0.40891 2011 12 18 55913 0.1428 0.2934 -0.41035 2011 12 19 55914 0.1417 0.2929 -0.41179 2011 12 20 55915 0.1407 0.2924 -0.41315 2011 12 21 55916 0.1396 0.2919 -0.41435 2011 12 22 55917 0.1385 0.2914 -0.41539 2011 12 23 55918 0.1374 0.2910 -0.41627 2011 12 24 55919 0.1363 0.2905 -0.41707 2011 12 25 55920 0.1353 0.2901 -0.41787 2011 12 26 55921 0.1342 0.2897 -0.41874 2011 12 27 55922 0.1331 0.2893 -0.41972 2011 12 28 55923 0.1320 0.2890 -0.42082 2011 12 29 55924 0.1309 0.2886 -0.42199 2011 12 30 55925 0.1298 0.2883 -0.42320 2011 12 31 55926 0.1287 0.2880 -0.42438 2012 1 1 55927 0.1276 0.2877 -0.42550 2012 1 2 55928 0.1265 0.2874 -0.42652 2012 1 3 55929 0.1254 0.2872 -0.42742 2012 1 4 55930 0.1243 0.2869 -0.42821 2012 1 5 55931 0.1232 0.2867 -0.42888 2012 1 6 55932 0.1221 0.2865 -0.42947 2012 1 7 55933 0.1210 0.2863 -0.43003 2012 1 8 55934 0.1199 0.2861 -0.43062 2012 1 9 55935 0.1188 0.2860 -0.43128 2012 1 10 55936 0.1177 0.2858 -0.43208 2012 1 11 55937 0.1167 0.2857 -0.43306 2012 1 12 55938 0.1156 0.2856 -0.43421 2012 1 13 55939 0.1145 0.2855 -0.43551 2012 1 14 55940 0.1134 0.2855 -0.43688 2012 1 15 55941 0.1124 0.2854 -0.43825 2012 1 16 55942 0.1113 0.2854 -0.43952 2012 1 17 55943 0.1103 0.2854 -0.44064 2012 1 18 55944 0.1092 0.2854 -0.44159 2012 1 19 55945 0.1082 0.2854 -0.44239 2012 1 20 55946 0.1071 0.2854 -0.44308 2012 1 21 55947 0.1061 0.2855 -0.44377 2012 1 22 55948 0.1050 0.2856 -0.44451 2012 1 23 55949 0.1040 0.2856 -0.44538 2012 1 24 55950 0.1030 0.2857 -0.44637 2012 1 25 55951 0.1020 0.2858 -0.44748 2012 1 26 55952 0.1010 0.2860 -0.44864 2012 1 27 55953 0.1000 0.2861 -0.44982 2012 1 28 55954 0.0990 0.2863 -0.45094 2012 1 29 55955 0.0981 0.2865 -0.45198 2012 1 30 55956 0.0971 0.2867 -0.45291 2012 1 31 55957 0.0961 0.2869 -0.45373 2012 2 1 55958 0.0952 0.2871 -0.45443 2012 2 2 55959 0.0943 0.2873 -0.45505 2012 2 3 55960 0.0933 0.2876 -0.45563 2012 2 4 55961 0.0924 0.2878 -0.45622 2012 2 5 55962 0.0915 0.2881 -0.45689 2012 2 6 55963 0.0906 0.2884 -0.45770 2012 2 7 55964 0.0897 0.2887 -0.45870 2012 2 8 55965 0.0889 0.2890 -0.45991 2012 2 9 55966 0.0880 0.2894 -0.46130 2012 2 10 55967 0.0871 0.2897 -0.46283 2012 2 11 55968 0.0863 0.2901 -0.46439 2012 2 12 55969 0.0855 0.2905 -0.46589 2012 2 13 55970 0.0847 0.2909 -0.46723 2012 2 14 55971 0.0839 0.2913 -0.46839 2012 2 15 55972 0.0831 0.2917 -0.46938 2012 2 16 55973 0.0823 0.2921 -0.47026 2012 2 17 55974 0.0815 0.2925 -0.47110 2012 2 18 55975 0.0808 0.2930 -0.47198 2012 2 19 55976 0.0801 0.2934 -0.47295 2012 2 20 55977 0.0793 0.2939 -0.47405 2012 2 21 55978 0.0786 0.2944 -0.47528 2012 2 22 55979 0.0779 0.2949 -0.47660 2012 2 23 55980 0.0772 0.2954 -0.47796 2012 2 24 55981 0.0766 0.2959 -0.47930 2012 2 25 55982 0.0759 0.2964 -0.48058 2012 2 26 55983 0.0753 0.2969 -0.48176 2012 2 27 55984 0.0747 0.2975 -0.48284 2012 2 28 55985 0.0740 0.2980 -0.48380 2012 2 29 55986 0.0734 0.2986 -0.48468 2012 3 1 55987 0.0729 0.2992 -0.48550 2012 3 2 55988 0.0723 0.2997 -0.48631 2012 3 3 55989 0.0718 0.3003 -0.48717 2012 3 4 55990 0.0712 0.3009 -0.48815 2012 3 5 55991 0.0707 0.3015 -0.48929 2012 3 6 55992 0.0702 0.3021 -0.49065 2012 3 7 55993 0.0697 0.3027 -0.49223 2012 3 8 55994 0.0692 0.3034 -0.49399 2012 3 9 55995 0.0688 0.3040 -0.49585 2012 3 10 55996 0.0683 0.3046 -0.49768 2012 3 11 55997 0.0679 0.3053 -0.49939 2012 3 12 55998 0.0675 0.3059 -0.50091 2012 3 13 55999 0.0671 0.3066 -0.50224 2012 3 14 56000 0.0667 0.3072 -0.50341 2012 3 15 56001 0.0664 0.3079 -0.50451 2012 3 16 56002 0.0660 0.3086 -0.50561 2012 3 17 56003 0.0657 0.3092 -0.50678 2012 3 18 56004 0.0654 0.3099 -0.50806 2012 3 19 56005 0.0651 0.3106 -0.50946 2012 3 20 56006 0.0648 0.3113 -0.51094 2012 3 21 56007 0.0645 0.3120 -0.51247 2012 3 22 56008 0.0643 0.3127 -0.51400 2012 3 23 56009 0.0640 0.3134 -0.51549 2012 3 24 56010 0.0638 0.3141 -0.51689 2012 3 25 56011 0.0636 0.3148 -0.51818 2012 3 26 56012 0.0634 0.3155 -0.51936 2012 3 27 56013 0.0632 0.3162 -0.52043 2012 3 28 56014 0.0631 0.3169 -0.52144 2012 3 29 56015 0.0630 0.3176 -0.52242 2012 3 30 56016 0.0628 0.3183 -0.52343 2012 3 31 56017 0.0627 0.3190 -0.52452 2012 4 1 56018 0.0626 0.3197 -0.52575 2012 4 2 56019 0.0626 0.3204 -0.52718 2012 4 3 56020 0.0625 0.3212 -0.52885 2012 4 4 56021 0.0624 0.3219 -0.53073 2012 4 5 56022 0.0624 0.3226 -0.53279 2012 4 6 56023 0.0624 0.3233 -0.53494 2012 4 7 56024 0.0624 0.3240 -0.53705 2012 4 8 56025 0.0624 0.3247 -0.53906 2012 4 9 56026 0.0624 0.3254 -0.54090 2012 4 10 56027 0.0625 0.3261 -0.54262 2012 4 11 56028 0.0625 0.3268 -0.54427 2012 4 12 56029 0.0626 0.3275 -0.54592 2012 4 13 56030 0.0627 0.3282 -0.54763 2012 4 14 56031 0.0628 0.3289 -0.54942 2012 4 15 56032 0.0629 0.3296 -0.55125 2012 4 16 56033 0.0631 0.3303 -0.55309 2012 4 17 56034 0.0632 0.3310 -0.55487 2012 4 18 56035 0.0634 0.3317 -0.55654 2012 4 19 56036 0.0635 0.3324 -0.55807 2012 4 20 56037 0.0637 0.3331 -0.55943 2012 4 21 56038 0.0639 0.3337 -0.56059 2012 4 22 56039 0.0641 0.3344 -0.56157 2012 4 23 56040 0.0644 0.3351 -0.56240 2012 4 24 56041 0.0646 0.3357 -0.56311 2012 4 25 56042 0.0648 0.3364 -0.56377 2012 4 26 56043 0.0651 0.3370 -0.56444 2012 4 27 56044 0.0654 0.3377 -0.56516 2012 4 28 56045 0.0657 0.3383 -0.56599 2012 4 29 56046 0.0660 0.3390 -0.56699 2012 4 30 56047 0.0663 0.3396 -0.56817 2012 5 1 56048 0.0666 0.3402 -0.56953 2012 5 2 56049 0.0669 0.3408 -0.57103 2012 5 3 56050 0.0673 0.3414 -0.57259 2012 5 4 56051 0.0676 0.3420 -0.57410 2012 5 5 56052 0.0680 0.3426 -0.57544 2012 5 6 56053 0.0684 0.3432 -0.57654 2012 5 7 56054 0.0688 0.3438 -0.57738 2012 5 8 56055 0.0692 0.3444 -0.57802 2012 5 9 56056 0.0696 0.3449 -0.57854 2012 5 10 56057 0.0700 0.3455 -0.57904 2012 5 11 56058 0.0704 0.3461 -0.57958 2012 5 12 56059 0.0709 0.3466 -0.58022 2012 5 13 56060 0.0713 0.3471 -0.58096 2012 5 14 56061 0.0718 0.3477 -0.58174 2012 5 15 56062 0.0722 0.3482 -0.58250 2012 5 16 56063 0.0727 0.3487 -0.58321 2012 5 17 56064 0.0732 0.3492 -0.58387 2012 5 18 56065 0.0737 0.3497 -0.58451 2012 5 19 56066 0.0741 0.3502 -0.58503 2012 5 20 56067 0.0746 0.3506 -0.58542 2012 5 21 56068 0.0752 0.3511 -0.58569 2012 5 22 56069 0.0757 0.3516 -0.58586 2012 5 23 56070 0.0762 0.3520 -0.58604 2012 5 24 56071 0.0767 0.3525 -0.58624 2012 5 25 56072 0.0772 0.3529 -0.58649 2012 5 26 56073 0.0778 0.3533 -0.58681 2012 5 27 56074 0.0783 0.3537 -0.58719 2012 5 28 56075 0.0789 0.3541 -0.58770 2012 5 29 56076 0.0794 0.3545 -0.58832 2012 5 30 56077 0.0800 0.3549 -0.58899 2012 5 31 56078 0.0806 0.3553 -0.58971 2012 6 1 56079 0.0811 0.3556 -0.59039 2012 6 2 56080 0.0817 0.3560 -0.59098 2012 6 3 56081 0.0823 0.3563 -0.59143 2012 6 4 56082 0.0828 0.3566 -0.59178 2012 6 5 56083 0.0834 0.3570 -0.59205 2012 6 6 56084 0.0840 0.3573 -0.59231 2012 6 7 56085 0.0846 0.3576 -0.59257 2012 6 8 56086 0.0852 0.3578 -0.59288 2012 6 9 56087 0.0858 0.3581 -0.59329 2012 6 10 56088 0.0864 0.3584 -0.59371 2012 6 11 56089 0.0869 0.3587 -0.59411 2012 6 12 56090 0.0875 0.3589 -0.59440 2012 6 13 56091 0.0881 0.3591 -0.59458 2012 6 14 56092 0.0887 0.3594 -0.59464 2012 6 15 56093 0.0893 0.3596 -0.59456 2012 6 16 56094 0.0899 0.3598 -0.59433 2012 6 17 56095 0.0905 0.3600 -0.59396 2012 6 18 56096 0.0911 0.3602 -0.59347 2012 6 19 56097 0.0917 0.3603 -0.59295 2012 6 20 56098 0.0923 0.3605 -0.59245 2012 6 21 56099 0.0929 0.3607 -0.59202 2012 6 22 56100 0.0935 0.3608 -0.59180 2012 6 23 56101 0.0941 0.3609 -0.59173 2012 6 24 56102 0.0947 0.3611 -0.59181 2012 6 25 56103 0.0952 0.3612 -0.59200 2012 6 26 56104 0.0958 0.3613 -0.59228 2012 6 27 56105 0.0964 0.3614 -0.59262 2012 6 28 56106 0.0970 0.3615 -0.59292 2012 6 29 56107 0.0975 0.3615 -0.59309 2012 6 30 56108 0.0981 0.3616 -0.59311 2012 7 1 56109 0.0987 0.3616 -0.59297 2012 7 2 56110 0.0992 0.3617 -0.59271 2012 7 3 56111 0.0998 0.3617 -0.59238 2012 7 4 56112 0.1004 0.3617 -0.59206 2012 7 5 56113 0.1009 0.3618 -0.59180 2012 7 6 56114 0.1014 0.3618 -0.59158 2012 7 7 56115 0.1020 0.3618 -0.59150 2012 7 8 56116 0.1025 0.3618 -0.59148 2012 7 9 56117 0.1030 0.3617 -0.59152 2012 7 10 56118 0.1036 0.3617 -0.59150 2012 7 11 56119 0.1041 0.3617 -0.59140 2012 7 12 56120 0.1046 0.3616 -0.59118 2012 7 13 56121 0.1051 0.3616 -0.59081 2012 7 14 56122 0.1056 0.3615 -0.59033 2012 7 15 56123 0.1061 0.3614 -0.58971 2012 7 16 56124 0.1066 0.3613 -0.58899 2012 7 17 56125 0.1070 0.3612 -0.58823 2012 7 18 56126 0.1075 0.3611 -0.58752 2012 7 19 56127 0.1080 0.3610 -0.58690 2012 7 20 56128 0.1084 0.3609 -0.58644 2012 7 21 56129 0.1089 0.3608 -0.58618 2012 7 22 56130 0.1093 0.3607 -0.58606 2012 7 23 56131 0.1097 0.3605 -0.58607 2012 7 24 56132 0.1101 0.3604 -0.58617 2012 7 25 56133 0.1106 0.3603 -0.58629 2012 7 26 56134 0.1110 0.3601 -0.58630 2012 7 27 56135 0.1113 0.3599 -0.58615 2012 7 28 56136 0.1117 0.3598 -0.58590 2012 7 29 56137 0.1121 0.3596 -0.58548 2012 7 30 56138 0.1125 0.3594 -0.58509 2012 7 31 56139 0.1128 0.3592 -0.58474 2012 8 1 56140 0.1132 0.3590 -0.58446 2012 8 2 56141 0.1135 0.3588 -0.58425 2012 8 3 56142 0.1138 0.3586 -0.58414 2012 8 4 56143 0.1141 0.3584 -0.58412 2012 8 5 56144 0.1145 0.3582 -0.58412 2012 8 6 56145 0.1148 0.3580 -0.58407 2012 8 7 56146 0.1150 0.3577 -0.58387 2012 8 8 56147 0.1153 0.3575 -0.58359 2012 8 9 56148 0.1156 0.3573 -0.58325 2012 8 10 56149 0.1158 0.3570 -0.58279 2012 8 11 56150 0.1161 0.3568 -0.58223 2012 8 12 56151 0.1163 0.3566 -0.58158 2012 8 13 56152 0.1165 0.3563 -0.58095 2012 8 14 56153 0.1167 0.3561 -0.58042 2012 8 15 56154 0.1169 0.3558 -0.57999 2012 8 16 56155 0.1171 0.3555 -0.57978 2012 8 17 56156 0.1173 0.3553 -0.57984 2012 8 18 56157 0.1175 0.3550 -0.58013 2012 8 19 56158 0.1176 0.3547 -0.58057 2012 8 20 56159 0.1178 0.3545 -0.58110 2012 8 21 56160 0.1179 0.3542 -0.58162 2012 8 22 56161 0.1180 0.3539 -0.58203 2012 8 23 56162 0.1181 0.3537 -0.58227 2012 8 24 56163 0.1182 0.3534 -0.58239 2012 8 25 56164 0.1183 0.3531 -0.58243 2012 8 26 56165 0.1184 0.3528 -0.58245 2012 8 27 56166 0.1184 0.3526 -0.58249 2012 8 28 56167 0.1185 0.3523 -0.58261 2012 8 29 56168 0.1185 0.3520 -0.58291 2012 8 30 56169 0.1186 0.3517 -0.58334 2012 8 31 56170 0.1186 0.3514 -0.58383 2012 9 1 56171 0.1186 0.3512 -0.58435 2012 9 2 56172 0.1186 0.3509 -0.58488 2012 9 3 56173 0.1186 0.3506 -0.58537 2012 9 4 56174 0.1185 0.3503 -0.58575 2012 9 5 56175 0.1185 0.3501 -0.58603 2012 9 6 56176 0.1184 0.3498 -0.58619 2012 9 7 56177 0.1184 0.3495 -0.58630 2012 9 8 56178 0.1183 0.3492 -0.58641 2012 9 9 56179 0.1182 0.3490 -0.58652 2012 9 10 56180 0.1181 0.3487 -0.58669 2012 9 11 56181 0.1180 0.3484 -0.58695 2012 9 12 56182 0.1179 0.3482 -0.58732 2012 9 13 56183 0.1178 0.3479 -0.58785 2012 9 14 56184 0.1176 0.3477 -0.58850 2012 9 15 56185 0.1175 0.3474 -0.58932 2012 9 16 56186 0.1173 0.3472 -0.59028 2012 9 17 56187 0.1171 0.3469 -0.59134 2012 9 18 56188 0.1170 0.3467 -0.59245 2012 9 19 56189 0.1168 0.3464 -0.59347 2012 9 20 56190 0.1166 0.3462 -0.59441 2012 9 21 56191 0.1164 0.3460 -0.59523 2012 9 22 56192 0.1161 0.3457 -0.59594 2012 9 23 56193 0.1159 0.3455 -0.59662 2012 9 24 56194 0.1157 0.3453 -0.59736 2012 9 25 56195 0.1154 0.3451 -0.59815 2012 9 26 56196 0.1152 0.3449 -0.59901 2012 9 27 56197 0.1149 0.3447 -0.59993 2012 9 28 56198 0.1146 0.3445 -0.60088 2012 9 29 56199 0.1143 0.3443 -0.60185 2012 9 30 56200 0.1140 0.3441 -0.60279 2012 10 1 56201 0.1137 0.3439 -0.60368 2012 10 2 56202 0.1134 0.3438 -0.60447 2012 10 3 56203 0.1131 0.3436 -0.60515 2012 10 4 56204 0.1128 0.3434 -0.60576 2012 10 5 56205 0.1124 0.3433 -0.60634 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) 55818 -79.29 0.30 -9.95 0.05 55819 -79.46 0.30 -10.16 0.05 55820 -79.44 0.30 -10.39 0.05 55821 -79.13 0.30 -10.56 0.05 55822 -78.79 0.30 -10.74 0.05 55823 -78.75 0.30 -10.96 0.07 55824 -79.03 0.30 -11.12 0.06 55825 -79.28 0.30 -11.09 0.06 55826 -79.17 0.30 -10.90 0.06 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55775 -75.9 -10.3 55776 -76.6 -10.0 55777 -77.3 -10.0 55778 -77.7 -10.2 55779 -77.7 -10.4 55780 -77.5 -10.5 55781 -77.4 -10.6 55782 -77.5 -10.7 55783 -77.7 -10.9 55784 -77.7 -11.0 55785 -77.5 -11.0 55786 -77.4 -10.8 55787 -77.4 -10.5 55788 -77.5 -10.3 55789 -77.8 -10.2 55790 -78.1 -10.3 55791 -78.2 -10.4 55792 -78.2 -10.5 55793 -78.0 -10.5 55794 -78.0 -10.7 55795 -78.4 -10.9 55796 -78.9 -11.1 55797 -79.1 -11.1 55798 -79.0 -11.0 55799 -78.6 -11.0 55800 -78.2 -11.0 55801 -78.0 -11.0 55802 -78.1 -10.8 55803 -78.5 -10.5 55804 -79.0 -10.2 55805 -79.4 -10.2 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55818 -0.059 0.119 0.203 0.050 55819 -0.044 0.119 0.197 0.050 55820 -0.039 0.119 0.173 0.050 55821 -0.021 0.119 0.165 0.050 55822 0.000 0.119 0.165 0.050 55823 0.016 0.119 0.174 0.070 55824 0.019 0.119 0.188 0.060 55825 0.009 0.119 0.200 0.060 55826 0.002 0.119 0.200 0.060 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55775 -0.14 0.17 55776 -0.15 0.21 55777 -0.15 0.19 55778 -0.16 0.14 55779 -0.16 0.12 55780 -0.16 0.16 55781 -0.15 0.15 55782 -0.14 0.15 55783 -0.14 0.05 55784 -0.11 0.02 55785 -0.07 -0.01 55786 -0.08 0.03 55787 -0.10 0.11 55788 -0.10 0.14 55789 -0.13 0.22 55790 -0.12 0.22 55791 -0.05 0.24 55792 -0.01 0.20 55793 0.02 0.27 55794 -0.01 0.22 55795 -0.08 0.25 55796 -0.10 0.21 55797 -0.06 0.20 55798 -0.03 0.19 55799 0.00 0.16 55800 0.02 0.23 55801 0.01 0.22 55802 -0.02 0.18 55803 -0.06 0.13 55804 -0.08 0.20 55805 -0.08 0.17 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).