********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 February 2014 Vol. XXVII No. 006 ______________________________________________________________________ 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 = -0.1 seconds beginning 21 Nov 2013 at 0000 UTC = -0.2 seconds beginning 20 Feb 2014 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 seconds *********************************************************************** * As of Bulletin A Vol. XXVII No. 006, on 06 Feb 2014, the contri- * * bution of the US Navy Fleet Numerical Meteorology and Oceanography * * Center (FNMOC) to the Atmospheric Angular Momentum (AAM) * * inputs has been upgraded to version 1.2 of the Navy Global * * Environmental Model (NAVGEM). It is anticipated that this * * upgrade may somewhat improve the short term UT1-UTC predictions. * * * * Please note that daily and Bulletin A EOP data can be obtained from * * the primary Earth Orientation (EO) servers at: * * http://maia.usno.navy.mil ftp://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * * *********************************************************************** ________________________________________________________________________ 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 14 1 31 56688 0.02423 .00009 0.34792 .00009 -0.128275 0.000024 14 2 1 56689 0.02380 .00009 0.34878 .00009 -0.129645 0.000026 14 2 2 56690 0.02359 .00009 0.34946 .00009 -0.131045 0.000024 14 2 3 56691 0.02361 .00009 0.35010 .00009 -0.132445 0.000018 14 2 4 56692 0.02372 .00009 0.35103 .00009 -0.133736 0.000014 14 2 5 56693 0.02396 .00010 0.35231 .00009 -0.134870 0.000012 14 2 6 56694 0.02436 .00010 0.35374 .00009 -0.135812 0.000055 IERS Final Values MJD x y UT1-UTC " " s 13 12 2 56628 0.0578 0.2949 -0.06328 13 12 3 56629 0.0572 0.2956 -0.06449 13 12 4 56630 0.0570 0.2964 -0.06561 13 12 5 56631 0.0571 0.2974 -0.06674 13 12 6 56632 0.0571 0.2986 -0.06795 13 12 7 56633 0.0570 0.3004 -0.06925 13 12 8 56634 0.0570 0.3015 -0.07064 13 12 9 56635 0.0572 0.3025 -0.07207 13 12 10 56636 0.0571 0.3039 -0.07347 13 12 11 56637 0.0569 0.3052 -0.07477 13 12 12 56638 0.0569 0.3063 -0.07597 13 12 13 56639 0.0565 0.3073 -0.07706 13 12 14 56640 0.0557 0.3082 -0.07803 13 12 15 56641 0.0546 0.3086 -0.07888 13 12 16 56642 0.0532 0.3085 -0.07960 13 12 17 56643 0.0517 0.3081 -0.08024 13 12 18 56644 0.0500 0.3081 -0.08084 13 12 19 56645 0.0483 0.3082 -0.08147 13 12 20 56646 0.0471 0.3087 -0.08220 13 12 21 56647 0.0461 0.3091 -0.08305 13 12 22 56648 0.0452 0.3097 -0.08404 13 12 23 56649 0.0443 0.3104 -0.08517 13 12 24 56650 0.0435 0.3112 -0.08641 13 12 25 56651 0.0427 0.3124 -0.08773 13 12 26 56652 0.0418 0.3134 -0.08911 13 12 27 56653 0.0411 0.3148 -0.09053 13 12 28 56654 0.0405 0.3159 -0.09196 13 12 29 56655 0.0401 0.3168 -0.09335 13 12 30 56656 0.0396 0.3176 -0.09466 13 12 31 56657 0.0390 0.3182 -0.09588 14 1 1 56658 0.0386 0.3189 -0.09705 _______________________________________________________________________ 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 = 0.0935 - 0.1075 cos A - 0.0157 sin A + 0.0314 cos C + 0.0316 sin C y = 0.3422 - 0.0198 cos A + 0.0995 sin A + 0.0316 cos C - 0.0314 sin C UT1-UTC = -0.1389 - 0.00103 (MJD - 56702) - (UT2-UT1) where A = 2*pi*(MJD-56694)/365.25 and C = 2*pi*(MJD-56694)/435. TAI-UTC(MJD 56695) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56694)**0.80 S t = 0.00025 (MJD-56694)**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) 2014 2 7 56695 0.0246 0.3552 -0.13663 2014 2 8 56696 0.0248 0.3566 -0.13734 2014 2 9 56697 0.0249 0.3579 -0.13794 2014 2 10 56698 0.0250 0.3592 -0.13851 2014 2 11 56699 0.0250 0.3604 -0.13909 2014 2 12 56700 0.0251 0.3615 -0.13974 2014 2 13 56701 0.0252 0.3627 -0.14049 2014 2 14 56702 0.0253 0.3638 -0.14135 2014 2 15 56703 0.0256 0.3650 -0.14232 2014 2 16 56704 0.0258 0.3662 -0.14336 2014 2 17 56705 0.0260 0.3674 -0.14447 2014 2 18 56706 0.0263 0.3686 -0.14561 2014 2 19 56707 0.0265 0.3698 -0.14676 2014 2 20 56708 0.0267 0.3710 -0.14789 2014 2 21 56709 0.0270 0.3722 -0.14898 2014 2 22 56710 0.0273 0.3733 -0.15005 2014 2 23 56711 0.0277 0.3745 -0.15110 2014 2 24 56712 0.0281 0.3756 -0.15216 2014 2 25 56713 0.0285 0.3768 -0.15329 2014 2 26 56714 0.0289 0.3780 -0.15457 2014 2 27 56715 0.0294 0.3792 -0.15604 2014 2 28 56716 0.0298 0.3803 -0.15771 2014 3 1 56717 0.0303 0.3815 -0.15953 2014 3 2 56718 0.0308 0.3826 -0.16142 2014 3 3 56719 0.0313 0.3838 -0.16329 2014 3 4 56720 0.0319 0.3849 -0.16504 2014 3 5 56721 0.0325 0.3860 -0.16663 2014 3 6 56722 0.0331 0.3872 -0.16805 2014 3 7 56723 0.0337 0.3883 -0.16933 2014 3 8 56724 0.0344 0.3894 -0.17050 2014 3 9 56725 0.0350 0.3905 -0.17161 2014 3 10 56726 0.0357 0.3916 -0.17272 2014 3 11 56727 0.0364 0.3927 -0.17388 2014 3 12 56728 0.0372 0.3938 -0.17510 2014 3 13 56729 0.0380 0.3949 -0.17641 2014 3 14 56730 0.0388 0.3959 -0.17784 2014 3 15 56731 0.0396 0.3970 -0.17936 2014 3 16 56732 0.0404 0.3980 -0.18097 2014 3 17 56733 0.0413 0.3991 -0.18264 2014 3 18 56734 0.0422 0.4001 -0.18433 2014 3 19 56735 0.0431 0.4011 -0.18599 2014 3 20 56736 0.0440 0.4021 -0.18760 2014 3 21 56737 0.0450 0.4031 -0.18912 2014 3 22 56738 0.0460 0.4041 -0.19057 2014 3 23 56739 0.0470 0.4050 -0.19197 2014 3 24 56740 0.0480 0.4060 -0.19338 2014 3 25 56741 0.0491 0.4069 -0.19485 2014 3 26 56742 0.0502 0.4078 -0.19645 2014 3 27 56743 0.0513 0.4087 -0.19821 2014 3 28 56744 0.0524 0.4096 -0.20011 2014 3 29 56745 0.0535 0.4105 -0.20213 2014 3 30 56746 0.0547 0.4114 -0.20417 2014 3 31 56747 0.0559 0.4122 -0.20615 2014 4 1 56748 0.0571 0.4130 -0.20800 2014 4 2 56749 0.0583 0.4138 -0.20967 2014 4 3 56750 0.0595 0.4146 -0.21117 2014 4 4 56751 0.0608 0.4154 -0.21252 2014 4 5 56752 0.0621 0.4162 -0.21376 2014 4 6 56753 0.0634 0.4169 -0.21494 2014 4 7 56754 0.0647 0.4176 -0.21611 2014 4 8 56755 0.0661 0.4183 -0.21730 2014 4 9 56756 0.0674 0.4190 -0.21855 2014 4 10 56757 0.0688 0.4197 -0.21990 2014 4 11 56758 0.0702 0.4203 -0.22133 2014 4 12 56759 0.0716 0.4209 -0.22285 2014 4 13 56760 0.0730 0.4215 -0.22443 2014 4 14 56761 0.0745 0.4221 -0.22604 2014 4 15 56762 0.0760 0.4227 -0.22764 2014 4 16 56763 0.0774 0.4232 -0.22918 2014 4 17 56764 0.0789 0.4237 -0.23064 2014 4 18 56765 0.0805 0.4242 -0.23201 2014 4 19 56766 0.0820 0.4247 -0.23330 2014 4 20 56767 0.0835 0.4252 -0.23456 2014 4 21 56768 0.0851 0.4256 -0.23585 2014 4 22 56769 0.0866 0.4260 -0.23721 2014 4 23 56770 0.0882 0.4264 -0.23869 2014 4 24 56771 0.0898 0.4267 -0.24029 2014 4 25 56772 0.0914 0.4271 -0.24199 2014 4 26 56773 0.0930 0.4274 -0.24373 2014 4 27 56774 0.0947 0.4277 -0.24545 2014 4 28 56775 0.0963 0.4279 -0.24706 2014 4 29 56776 0.0979 0.4282 -0.24852 2014 4 30 56777 0.0996 0.4284 -0.24981 2014 5 1 56778 0.1013 0.4286 -0.25095 2014 5 2 56779 0.1030 0.4287 -0.25196 2014 5 3 56780 0.1046 0.4289 -0.25288 2014 5 4 56781 0.1063 0.4290 -0.25377 2014 5 5 56782 0.1080 0.4291 -0.25466 2014 5 6 56783 0.1097 0.4291 -0.25559 2014 5 7 56784 0.1114 0.4292 -0.25658 2014 5 8 56785 0.1132 0.4292 -0.25765 2014 5 9 56786 0.1149 0.4292 -0.25880 2014 5 10 56787 0.1166 0.4291 -0.26001 2014 5 11 56788 0.1184 0.4291 -0.26126 2014 5 12 56789 0.1201 0.4290 -0.26252 2014 5 13 56790 0.1218 0.4288 -0.26373 2014 5 14 56791 0.1236 0.4287 -0.26488 2014 5 15 56792 0.1253 0.4285 -0.26593 2014 5 16 56793 0.1271 0.4283 -0.26690 2014 5 17 56794 0.1288 0.4281 -0.26782 2014 5 18 56795 0.1306 0.4278 -0.26874 2014 5 19 56796 0.1323 0.4275 -0.26971 2014 5 20 56797 0.1341 0.4272 -0.27079 2014 5 21 56798 0.1358 0.4269 -0.27197 2014 5 22 56799 0.1376 0.4265 -0.27322 2014 5 23 56800 0.1393 0.4262 -0.27451 2014 5 24 56801 0.1410 0.4257 -0.27577 2014 5 25 56802 0.1428 0.4253 -0.27695 2014 5 26 56803 0.1445 0.4248 -0.27796 2014 5 27 56804 0.1462 0.4243 -0.27881 2014 5 28 56805 0.1480 0.4238 -0.27950 2014 5 29 56806 0.1497 0.4232 -0.28006 2014 5 30 56807 0.1514 0.4227 -0.28052 2014 5 31 56808 0.1531 0.4221 -0.28092 2014 6 1 56809 0.1548 0.4214 -0.28132 2014 6 2 56810 0.1565 0.4208 -0.28174 2014 6 3 56811 0.1582 0.4201 -0.28221 2014 6 4 56812 0.1599 0.4194 -0.28275 2014 6 5 56813 0.1615 0.4186 -0.28336 2014 6 6 56814 0.1632 0.4179 -0.28403 2014 6 7 56815 0.1648 0.4171 -0.28475 2014 6 8 56816 0.1665 0.4163 -0.28548 2014 6 9 56817 0.1681 0.4154 -0.28619 2014 6 10 56818 0.1697 0.4146 -0.28685 2014 6 11 56819 0.1713 0.4137 -0.28744 2014 6 12 56820 0.1729 0.4127 -0.28794 2014 6 13 56821 0.1745 0.4118 -0.28838 2014 6 14 56822 0.1760 0.4108 -0.28882 2014 6 15 56823 0.1776 0.4098 -0.28930 2014 6 16 56824 0.1791 0.4088 -0.28989 2014 6 17 56825 0.1806 0.4078 -0.29058 2014 6 18 56826 0.1821 0.4067 -0.29137 2014 6 19 56827 0.1836 0.4056 -0.29219 2014 6 20 56828 0.1851 0.4045 -0.29297 2014 6 21 56829 0.1865 0.4033 -0.29366 2014 6 22 56830 0.1880 0.4022 -0.29422 2014 6 23 56831 0.1894 0.4010 -0.29461 2014 6 24 56832 0.1908 0.3998 -0.29485 2014 6 25 56833 0.1922 0.3986 -0.29494 2014 6 26 56834 0.1935 0.3973 -0.29494 2014 6 27 56835 0.1948 0.3960 -0.29488 2014 6 28 56836 0.1962 0.3947 -0.29481 2014 6 29 56837 0.1975 0.3934 -0.29477 2014 6 30 56838 0.1987 0.3921 -0.29477 2014 7 1 56839 0.2000 0.3907 -0.29485 2014 7 2 56840 0.2012 0.3893 -0.29500 2014 7 3 56841 0.2024 0.3879 -0.29523 2014 7 4 56842 0.2036 0.3865 -0.29551 2014 7 5 56843 0.2048 0.3850 -0.29581 2014 7 6 56844 0.2059 0.3836 -0.29612 2014 7 7 56845 0.2070 0.3821 -0.29639 2014 7 8 56846 0.2081 0.3806 -0.29662 2014 7 9 56847 0.2091 0.3791 -0.29678 2014 7 10 56848 0.2102 0.3775 -0.29690 2014 7 11 56849 0.2112 0.3760 -0.29700 2014 7 12 56850 0.2122 0.3744 -0.29716 2014 7 13 56851 0.2131 0.3728 -0.29742 2014 7 14 56852 0.2140 0.3712 -0.29783 2014 7 15 56853 0.2149 0.3696 -0.29838 2014 7 16 56854 0.2158 0.3680 -0.29901 2014 7 17 56855 0.2166 0.3663 -0.29964 2014 7 18 56856 0.2174 0.3647 -0.30019 2014 7 19 56857 0.2182 0.3630 -0.30061 2014 7 20 56858 0.2190 0.3613 -0.30087 2014 7 21 56859 0.2197 0.3596 -0.30097 2014 7 22 56860 0.2204 0.3579 -0.30092 2014 7 23 56861 0.2211 0.3561 -0.30078 2014 7 24 56862 0.2217 0.3544 -0.30058 2014 7 25 56863 0.2223 0.3526 -0.30036 2014 7 26 56864 0.2229 0.3509 -0.30017 2014 7 27 56865 0.2234 0.3491 -0.30004 2014 7 28 56866 0.2239 0.3473 -0.29999 2014 7 29 56867 0.2244 0.3455 -0.30003 2014 7 30 56868 0.2248 0.3437 -0.30015 2014 7 31 56869 0.2252 0.3419 -0.30033 2014 8 1 56870 0.2256 0.3401 -0.30056 2014 8 2 56871 0.2259 0.3382 -0.30080 2014 8 3 56872 0.2262 0.3364 -0.30102 2014 8 4 56873 0.2265 0.3345 -0.30121 2014 8 5 56874 0.2268 0.3327 -0.30134 2014 8 6 56875 0.2270 0.3308 -0.30143 2014 8 7 56876 0.2271 0.3290 -0.30150 2014 8 8 56877 0.2273 0.3271 -0.30160 2014 8 9 56878 0.2274 0.3252 -0.30180 2014 8 10 56879 0.2275 0.3234 -0.30215 2014 8 11 56880 0.2275 0.3215 -0.30266 2014 8 12 56881 0.2275 0.3196 -0.30331 2014 8 13 56882 0.2275 0.3177 -0.30402 2014 8 14 56883 0.2274 0.3158 -0.30470 2014 8 15 56884 0.2273 0.3140 -0.30529 2014 8 16 56885 0.2271 0.3121 -0.30573 2014 8 17 56886 0.2270 0.3102 -0.30602 2014 8 18 56887 0.2268 0.3083 -0.30620 2014 8 19 56888 0.2265 0.3064 -0.30630 2014 8 20 56889 0.2262 0.3045 -0.30637 2014 8 21 56890 0.2259 0.3026 -0.30644 2014 8 22 56891 0.2256 0.3008 -0.30656 2014 8 23 56892 0.2252 0.2989 -0.30676 2014 8 24 56893 0.2248 0.2970 -0.30707 2014 8 25 56894 0.2243 0.2952 -0.30748 2014 8 26 56895 0.2238 0.2933 -0.30801 2014 8 27 56896 0.2233 0.2914 -0.30864 2014 8 28 56897 0.2227 0.2896 -0.30934 2014 8 29 56898 0.2221 0.2878 -0.31008 2014 8 30 56899 0.2215 0.2859 -0.31084 2014 8 31 56900 0.2208 0.2841 -0.31159 2014 9 1 56901 0.2201 0.2823 -0.31230 2014 9 2 56902 0.2194 0.2805 -0.31299 2014 9 3 56903 0.2186 0.2787 -0.31366 2014 9 4 56904 0.2178 0.2769 -0.31435 2014 9 5 56905 0.2170 0.2751 -0.31512 2014 9 6 56906 0.2161 0.2733 -0.31603 2014 9 7 56907 0.2152 0.2715 -0.31711 2014 9 8 56908 0.2142 0.2698 -0.31837 2014 9 9 56909 0.2133 0.2681 -0.31978 2014 9 10 56910 0.2123 0.2663 -0.32126 2014 9 11 56911 0.2112 0.2646 -0.32272 2014 9 12 56912 0.2101 0.2629 -0.32409 2014 9 13 56913 0.2090 0.2613 -0.32530 2014 9 14 56914 0.2079 0.2596 -0.32634 2014 9 15 56915 0.2067 0.2579 -0.32723 2014 9 16 56916 0.2055 0.2563 -0.32799 2014 9 17 56917 0.2042 0.2547 -0.32869 2014 9 18 56918 0.2030 0.2531 -0.32938 2014 9 19 56919 0.2017 0.2515 -0.33013 2014 9 20 56920 0.2003 0.2499 -0.33097 2014 9 21 56921 0.1990 0.2484 -0.33186 2014 9 22 56922 0.1976 0.2469 -0.33282 2014 9 23 56923 0.1961 0.2454 -0.33383 2014 9 24 56924 0.1947 0.2439 -0.33485 2014 9 25 56925 0.1932 0.2424 -0.33589 2014 9 26 56926 0.1917 0.2410 -0.33692 2014 9 27 56927 0.1901 0.2396 -0.33790 2014 9 28 56928 0.1885 0.2382 -0.33885 2014 9 29 56929 0.1869 0.2368 -0.33978 2014 9 30 56930 0.1853 0.2354 -0.34070 2014 10 1 56931 0.1836 0.2341 -0.34168 2014 10 2 56932 0.1819 0.2328 -0.34277 2014 10 3 56933 0.1802 0.2315 -0.34402 2014 10 4 56934 0.1785 0.2302 -0.34547 2014 10 5 56935 0.1767 0.2290 -0.34716 2014 10 6 56936 0.1749 0.2278 -0.34906 2014 10 7 56937 0.1731 0.2266 -0.35109 2014 10 8 56938 0.1712 0.2255 -0.35313 2014 10 9 56939 0.1694 0.2243 -0.35509 2014 10 10 56940 0.1675 0.2232 -0.35689 2014 10 11 56941 0.1656 0.2222 -0.35855 2014 10 12 56942 0.1636 0.2211 -0.36002 2014 10 13 56943 0.1617 0.2201 -0.36132 2014 10 14 56944 0.1597 0.2191 -0.36256 2014 10 15 56945 0.1577 0.2181 -0.36372 2014 10 16 56946 0.1556 0.2172 -0.36490 2014 10 17 56947 0.1536 0.2163 -0.36612 2014 10 18 56948 0.1515 0.2154 -0.36739 2014 10 19 56949 0.1494 0.2146 -0.36870 2014 10 20 56950 0.1473 0.2138 -0.37008 2014 10 21 56951 0.1452 0.2130 -0.37151 2014 10 22 56952 0.1431 0.2123 -0.37291 2014 10 23 56953 0.1409 0.2115 -0.37430 2014 10 24 56954 0.1387 0.2109 -0.37568 2014 10 25 56955 0.1365 0.2102 -0.37699 2014 10 26 56956 0.1343 0.2096 -0.37819 2014 10 27 56957 0.1321 0.2090 -0.37929 2014 10 28 56958 0.1299 0.2084 -0.38033 2014 10 29 56959 0.1276 0.2079 -0.38135 2014 10 30 56960 0.1254 0.2074 -0.38243 2014 10 31 56961 0.1231 0.2070 -0.38363 2014 11 1 56962 0.1208 0.2066 -0.38511 2014 11 2 56963 0.1185 0.2062 -0.38676 2014 11 3 56964 0.1162 0.2058 -0.38857 2014 11 4 56965 0.1139 0.2055 -0.39052 2014 11 5 56966 0.1115 0.2052 -0.39251 2014 11 6 56967 0.1092 0.2050 -0.39444 2014 11 7 56968 0.1068 0.2048 -0.39626 2014 11 8 56969 0.1045 0.2046 -0.39786 2014 11 9 56970 0.1021 0.2045 -0.39932 2014 11 10 56971 0.0998 0.2044 -0.40069 2014 11 11 56972 0.0974 0.2043 -0.40205 2014 11 12 56973 0.0950 0.2043 -0.40342 2014 11 13 56974 0.0926 0.2043 -0.40482 2014 11 14 56975 0.0902 0.2043 -0.40625 2014 11 15 56976 0.0878 0.2044 -0.40773 2014 11 16 56977 0.0855 0.2045 -0.40927 2014 11 17 56978 0.0831 0.2047 -0.41086 2014 11 18 56979 0.0807 0.2048 -0.41247 2014 11 19 56980 0.0783 0.2051 -0.41409 2014 11 20 56981 0.0759 0.2053 -0.41573 2014 11 21 56982 0.0735 0.2056 -0.41732 2014 11 22 56983 0.0711 0.2059 -0.41881 2014 11 23 56984 0.0687 0.2063 -0.42026 2014 11 24 56985 0.0663 0.2067 -0.42169 2014 11 25 56986 0.0639 0.2072 -0.42304 2014 11 26 56987 0.0615 0.2076 -0.42441 2014 11 27 56988 0.0592 0.2082 -0.42588 2014 11 28 56989 0.0568 0.2087 -0.42744 2014 11 29 56990 0.0544 0.2093 -0.42911 2014 11 30 56991 0.0521 0.2099 -0.43084 2014 12 1 56992 0.0497 0.2106 -0.43259 2014 12 2 56993 0.0474 0.2113 -0.43431 2014 12 3 56994 0.0450 0.2120 -0.43594 2014 12 4 56995 0.0427 0.2128 -0.43742 2014 12 5 56996 0.0404 0.2136 -0.43877 2014 12 6 56997 0.0381 0.2144 -0.43997 2014 12 7 56998 0.0358 0.2153 -0.44103 2014 12 8 56999 0.0335 0.2162 -0.44200 2014 12 9 57000 0.0313 0.2171 -0.44291 2014 12 10 57001 0.0290 0.2181 -0.44382 2014 12 11 57002 0.0268 0.2191 -0.44481 2014 12 12 57003 0.0246 0.2202 -0.44586 2014 12 13 57004 0.0223 0.2213 -0.44694 2014 12 14 57005 0.0202 0.2224 -0.44809 2014 12 15 57006 0.0180 0.2236 -0.44933 2014 12 16 57007 0.0158 0.2247 -0.45055 2014 12 17 57008 0.0137 0.2260 -0.45172 2014 12 18 57009 0.0116 0.2272 -0.45286 2014 12 19 57010 0.0095 0.2285 -0.45395 2014 12 20 57011 0.0074 0.2298 -0.45498 2014 12 21 57012 0.0053 0.2312 -0.45598 2014 12 22 57013 0.0033 0.2326 -0.45700 2014 12 23 57014 0.0013 0.2340 -0.45805 2014 12 24 57015 -0.0007 0.2354 -0.45920 2014 12 25 57016 -0.0027 0.2369 -0.46053 2014 12 26 57017 -0.0046 0.2384 -0.46200 2014 12 27 57018 -0.0066 0.2400 -0.46353 2014 12 28 57019 -0.0085 0.2415 -0.46512 2014 12 29 57020 -0.0103 0.2432 -0.46673 2014 12 30 57021 -0.0122 0.2448 -0.46825 2014 12 31 57022 -0.0140 0.2464 -0.46965 2015 1 1 57023 -0.0158 0.2481 -0.47088 2015 1 2 57024 -0.0175 0.2499 -0.47196 2015 1 3 57025 -0.0193 0.2516 -0.47288 2015 1 4 57026 -0.0210 0.2534 -0.47371 2015 1 5 57027 -0.0227 0.2552 -0.47446 2015 1 6 57028 -0.0243 0.2570 -0.47518 2015 1 7 57029 -0.0259 0.2589 -0.47594 2015 1 8 57030 -0.0275 0.2608 -0.47677 2015 1 9 57031 -0.0291 0.2627 -0.47764 2015 1 10 57032 -0.0306 0.2646 -0.47860 2015 1 11 57033 -0.0321 0.2666 -0.47968 2015 1 12 57034 -0.0335 0.2686 -0.48078 2015 1 13 57035 -0.0350 0.2706 -0.48194 2015 1 14 57036 -0.0364 0.2726 -0.48309 2015 1 15 57037 -0.0377 0.2747 -0.48422 2015 1 16 57038 -0.0390 0.2767 -0.48528 2015 1 17 57039 -0.0403 0.2788 -0.48630 2015 1 18 57040 -0.0416 0.2809 -0.48732 2015 1 19 57041 -0.0428 0.2831 -0.48837 2015 1 20 57042 -0.0440 0.2852 -0.48949 2015 1 21 57043 -0.0451 0.2874 -0.49080 2015 1 22 57044 -0.0462 0.2896 -0.49234 2015 1 23 57045 -0.0473 0.2918 -0.49404 2015 1 24 57046 -0.0483 0.2941 -0.49586 2015 1 25 57047 -0.0493 0.2963 -0.49768 2015 1 26 57048 -0.0502 0.2986 -0.49940 2015 1 27 57049 -0.0511 0.3009 -0.50095 2015 1 28 57050 -0.0520 0.3032 -0.50225 2015 1 29 57051 -0.0528 0.3055 -0.50336 2015 1 30 57052 -0.0536 0.3079 -0.50439 2015 1 31 57053 -0.0544 0.3102 -0.50532 2015 2 1 57054 -0.0551 0.3126 -0.50620 2015 2 2 57055 -0.0558 0.3149 -0.50708 2015 2 3 57056 -0.0564 0.3173 -0.50800 2015 2 4 57057 -0.0570 0.3197 -0.50894 2015 2 5 57058 -0.0575 0.3221 -0.50996 2015 2 6 57059 -0.0580 0.3246 -0.51102 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) 56668 -81.48 0.13 -9.37 0.07 56669 -81.48 0.15 -9.38 0.07 56670 -81.49 0.15 -9.31 0.07 56671 -81.40 0.19 -9.27 0.06 56672 -81.22 0.11 -9.26 0.05 56673 -81.00 0.11 -9.25 0.05 56674 -80.79 0.11 -9.26 0.05 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 56628 -82.0 -9.4 56629 -81.6 -9.6 56630 -81.6 -9.8 56631 -81.8 -9.8 56632 -82.1 -9.6 56633 -82.1 -9.9 56634 -82.0 -9.8 56635 -82.0 -9.5 56636 -82.0 -9.4 56637 -82.0 -9.3 56638 -82.1 -9.4 56639 -82.1 -9.5 56640 -82.2 -9.5 56641 -82.2 -9.4 56642 -82.0 -9.3 56643 -81.8 -9.2 56644 -81.6 -9.2 56645 -81.4 -9.1 56646 -81.1 -9.2 56647 -81.0 -9.3 56648 -81.0 -9.4 56649 -81.0 -9.5 56650 -80.8 -9.4 56651 -80.7 -9.3 56652 -80.8 -9.3 56653 -81.2 -9.3 56654 -81.5 -9.2 56655 -81.6 -9.0 56656 -81.5 -9.0 56657 -81.3 -9.2 56658 -81.3 -9.5 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56668 0.063 0.052 0.193 0.070 56669 0.075 0.060 0.173 0.070 56670 0.084 0.060 0.168 0.070 56671 0.098 0.076 0.161 0.060 56672 0.120 0.044 0.152 0.050 56673 0.149 0.044 0.133 0.050 56674 0.178 0.044 0.119 0.050 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 56628 -0.02 0.27 56629 0.03 0.30 56630 0.00 0.34 56631 -0.02 0.36 56632 -0.04 0.41 56633 0.02 -0.06 56634 0.04 -0.07 56635 0.00 0.13 56636 0.00 0.13 56637 0.04 0.19 56638 0.05 0.15 56639 0.08 0.14 56640 0.05 0.15 56641 0.03 0.19 56642 0.05 0.21 56643 0.06 0.24 56644 0.07 0.19 56645 0.07 0.25 56646 0.11 0.16 56647 0.10 0.14 56648 0.09 0.12 56649 0.07 0.01 56650 0.08 0.00 56651 0.05 -0.01 56652 0.06 -0.02 56653 0.05 0.00 56654 0.06 0.02 56655 0.04 0.08 56656 0.03 0.08 56657 0.04 0.13 56658 0.02 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).