********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 May 2014 Vol. XXVII No. 019 ______________________________________________________________________ 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 8 May 2014 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 seconds *********************************************************************** * 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 5 2 56779 0.07981 .00009 0.44354 .00009 -0.249021 0.000013 14 5 3 56780 0.08176 .00009 0.44400 .00009 -0.250136 0.000008 14 5 4 56781 0.08376 .00009 0.44451 .00009 -0.251236 0.000009 14 5 5 56782 0.08525 .00009 0.44483 .00009 -0.252366 0.000013 14 5 6 56783 0.08627 .00009 0.44503 .00009 -0.253558 0.000014 14 5 7 56784 0.08748 .00009 0.44549 .00009 -0.254802 0.000014 14 5 8 56785 0.08895 .00009 0.44618 .00009 -0.256127 0.000014 _______________________________________________________________________ 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 = 0.0983 - 0.0460 cos A + 0.0873 sin A + 0.0480 cos C + 0.0119 sin C y = 0.3528 + 0.0810 cos A + 0.0444 sin A + 0.0119 cos C - 0.0480 sin C UT1-UTC = -0.2266 - 0.00100 (MJD - 56793) - (UT2-UT1) where A = 2*pi*(MJD-56785)/365.25 and C = 2*pi*(MJD-56785)/435. TAI-UTC(MJD 56786) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56785)**0.80 S t = 0.00025 (MJD-56785)**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 5 9 56786 0.0904 0.4467 -0.25755 2014 5 10 56787 0.0920 0.4472 -0.25900 2014 5 11 56788 0.0937 0.4477 -0.26044 2014 5 12 56789 0.0954 0.4480 -0.26181 2014 5 13 56790 0.0972 0.4483 -0.26310 2014 5 14 56791 0.0990 0.4485 -0.26431 2014 5 15 56792 0.1007 0.4487 -0.26543 2014 5 16 56793 0.1026 0.4489 -0.26647 2014 5 17 56794 0.1044 0.4490 -0.26745 2014 5 18 56795 0.1062 0.4491 -0.26843 2014 5 19 56796 0.1080 0.4492 -0.26949 2014 5 20 56797 0.1098 0.4494 -0.27071 2014 5 21 56798 0.1117 0.4494 -0.27206 2014 5 22 56799 0.1136 0.4495 -0.27350 2014 5 23 56800 0.1155 0.4495 -0.27496 2014 5 24 56801 0.1174 0.4495 -0.27639 2014 5 25 56802 0.1193 0.4494 -0.27772 2014 5 26 56803 0.1212 0.4493 -0.27892 2014 5 27 56804 0.1232 0.4492 -0.27996 2014 5 28 56805 0.1251 0.4490 -0.28082 2014 5 29 56806 0.1270 0.4488 -0.28152 2014 5 30 56807 0.1290 0.4486 -0.28209 2014 5 31 56808 0.1309 0.4483 -0.28257 2014 6 1 56809 0.1329 0.4480 -0.28299 2014 6 2 56810 0.1348 0.4477 -0.28341 2014 6 3 56811 0.1367 0.4473 -0.28387 2014 6 4 56812 0.1387 0.4470 -0.28438 2014 6 5 56813 0.1406 0.4465 -0.28496 2014 6 6 56814 0.1426 0.4461 -0.28560 2014 6 7 56815 0.1445 0.4456 -0.28627 2014 6 8 56816 0.1464 0.4451 -0.28694 2014 6 9 56817 0.1484 0.4445 -0.28758 2014 6 10 56818 0.1503 0.4440 -0.28815 2014 6 11 56819 0.1522 0.4433 -0.28864 2014 6 12 56820 0.1541 0.4427 -0.28904 2014 6 13 56821 0.1560 0.4420 -0.28937 2014 6 14 56822 0.1579 0.4413 -0.28968 2014 6 15 56823 0.1598 0.4406 -0.29001 2014 6 16 56824 0.1617 0.4398 -0.29043 2014 6 17 56825 0.1635 0.4390 -0.29097 2014 6 18 56826 0.1654 0.4382 -0.29159 2014 6 19 56827 0.1672 0.4373 -0.29225 2014 6 20 56828 0.1690 0.4365 -0.29288 2014 6 21 56829 0.1708 0.4355 -0.29344 2014 6 22 56830 0.1726 0.4346 -0.29387 2014 6 23 56831 0.1744 0.4336 -0.29414 2014 6 24 56832 0.1762 0.4326 -0.29428 2014 6 25 56833 0.1779 0.4316 -0.29428 2014 6 26 56834 0.1797 0.4305 -0.29418 2014 6 27 56835 0.1814 0.4294 -0.29403 2014 6 28 56836 0.1831 0.4283 -0.29386 2014 6 29 56837 0.1848 0.4272 -0.29372 2014 6 30 56838 0.1865 0.4260 -0.29364 2014 7 1 56839 0.1881 0.4248 -0.29362 2014 7 2 56840 0.1897 0.4236 -0.29368 2014 7 3 56841 0.1913 0.4223 -0.29380 2014 7 4 56842 0.1929 0.4210 -0.29397 2014 7 5 56843 0.1945 0.4197 -0.29415 2014 7 6 56844 0.1960 0.4184 -0.29433 2014 7 7 56845 0.1976 0.4170 -0.29447 2014 7 8 56846 0.1991 0.4157 -0.29456 2014 7 9 56847 0.2005 0.4142 -0.29459 2014 7 10 56848 0.2020 0.4128 -0.29457 2014 7 11 56849 0.2034 0.4114 -0.29455 2014 7 12 56850 0.2048 0.4099 -0.29459 2014 7 13 56851 0.2062 0.4084 -0.29475 2014 7 14 56852 0.2076 0.4068 -0.29506 2014 7 15 56853 0.2089 0.4053 -0.29551 2014 7 16 56854 0.2102 0.4037 -0.29605 2014 7 17 56855 0.2115 0.4021 -0.29660 2014 7 18 56856 0.2127 0.4005 -0.29706 2014 7 19 56857 0.2139 0.3989 -0.29740 2014 7 20 56858 0.2151 0.3972 -0.29757 2014 7 21 56859 0.2163 0.3955 -0.29758 2014 7 22 56860 0.2174 0.3939 -0.29747 2014 7 23 56861 0.2185 0.3921 -0.29725 2014 7 24 56862 0.2196 0.3904 -0.29699 2014 7 25 56863 0.2207 0.3887 -0.29673 2014 7 26 56864 0.2217 0.3869 -0.29650 2014 7 27 56865 0.2227 0.3851 -0.29633 2014 7 28 56866 0.2236 0.3833 -0.29626 2014 7 29 56867 0.2245 0.3815 -0.29627 2014 7 30 56868 0.2254 0.3796 -0.29636 2014 7 31 56869 0.2263 0.3778 -0.29652 2014 8 1 56870 0.2271 0.3759 -0.29672 2014 8 2 56871 0.2279 0.3740 -0.29694 2014 8 3 56872 0.2287 0.3721 -0.29715 2014 8 4 56873 0.2294 0.3702 -0.29732 2014 8 5 56874 0.2301 0.3683 -0.29745 2014 8 6 56875 0.2307 0.3664 -0.29754 2014 8 7 56876 0.2314 0.3644 -0.29763 2014 8 8 56877 0.2320 0.3625 -0.29777 2014 8 9 56878 0.2325 0.3605 -0.29802 2014 8 10 56879 0.2330 0.3585 -0.29843 2014 8 11 56880 0.2335 0.3565 -0.29904 2014 8 12 56881 0.2340 0.3545 -0.29979 2014 8 13 56882 0.2344 0.3525 -0.30062 2014 8 14 56883 0.2348 0.3505 -0.30143 2014 8 15 56884 0.2351 0.3485 -0.30213 2014 8 16 56885 0.2354 0.3465 -0.30268 2014 8 17 56886 0.2357 0.3444 -0.30306 2014 8 18 56887 0.2359 0.3424 -0.30329 2014 8 19 56888 0.2361 0.3403 -0.30340 2014 8 20 56889 0.2363 0.3383 -0.30345 2014 8 21 56890 0.2364 0.3362 -0.30348 2014 8 22 56891 0.2365 0.3342 -0.30353 2014 8 23 56892 0.2365 0.3321 -0.30365 2014 8 24 56893 0.2365 0.3300 -0.30385 2014 8 25 56894 0.2365 0.3280 -0.30415 2014 8 26 56895 0.2364 0.3259 -0.30455 2014 8 27 56896 0.2363 0.3238 -0.30503 2014 8 28 56897 0.2362 0.3217 -0.30557 2014 8 29 56898 0.2360 0.3197 -0.30614 2014 8 30 56899 0.2358 0.3176 -0.30670 2014 8 31 56900 0.2356 0.3155 -0.30724 2014 9 1 56901 0.2353 0.3135 -0.30774 2014 9 2 56902 0.2349 0.3114 -0.30819 2014 9 3 56903 0.2346 0.3093 -0.30863 2014 9 4 56904 0.2342 0.3073 -0.30911 2014 9 5 56905 0.2337 0.3052 -0.30967 2014 9 6 56906 0.2333 0.3032 -0.31039 2014 9 7 56907 0.2328 0.3011 -0.31129 2014 9 8 56908 0.2322 0.2991 -0.31239 2014 9 9 56909 0.2316 0.2971 -0.31363 2014 9 10 56910 0.2310 0.2951 -0.31492 2014 9 11 56911 0.2303 0.2930 -0.31616 2014 9 12 56912 0.2296 0.2910 -0.31728 2014 9 13 56913 0.2289 0.2891 -0.31823 2014 9 14 56914 0.2281 0.2871 -0.31902 2014 9 15 56915 0.2273 0.2851 -0.31967 2014 9 16 56916 0.2265 0.2831 -0.32024 2014 9 17 56917 0.2256 0.2812 -0.32077 2014 9 18 56918 0.2247 0.2792 -0.32130 2014 9 19 56919 0.2237 0.2773 -0.32188 2014 9 20 56920 0.2227 0.2754 -0.32254 2014 9 21 56921 0.2217 0.2735 -0.32329 2014 9 22 56922 0.2207 0.2716 -0.32414 2014 9 23 56923 0.2196 0.2697 -0.32508 2014 9 24 56924 0.2184 0.2679 -0.32608 2014 9 25 56925 0.2173 0.2660 -0.32712 2014 9 26 56926 0.2161 0.2642 -0.32817 2014 9 27 56927 0.2149 0.2624 -0.32920 2014 9 28 56928 0.2136 0.2606 -0.33018 2014 9 29 56929 0.2123 0.2589 -0.33110 2014 9 30 56930 0.2110 0.2571 -0.33199 2014 10 1 56931 0.2096 0.2554 -0.33289 2014 10 2 56932 0.2082 0.2537 -0.33384 2014 10 3 56933 0.2068 0.2520 -0.33491 2014 10 4 56934 0.2053 0.2503 -0.33614 2014 10 5 56935 0.2038 0.2486 -0.33755 2014 10 6 56936 0.2023 0.2470 -0.33912 2014 10 7 56937 0.2008 0.2454 -0.34080 2014 10 8 56938 0.1992 0.2438 -0.34250 2014 10 9 56939 0.1976 0.2423 -0.34411 2014 10 10 56940 0.1959 0.2407 -0.34559 2014 10 11 56941 0.1942 0.2392 -0.34689 2014 10 12 56942 0.1925 0.2377 -0.34804 2014 10 13 56943 0.1908 0.2363 -0.34908 2014 10 14 56944 0.1891 0.2348 -0.35005 2014 10 15 56945 0.1873 0.2334 -0.35099 2014 10 16 56946 0.1855 0.2320 -0.35196 2014 10 17 56947 0.1836 0.2307 -0.35298 2014 10 18 56948 0.1818 0.2293 -0.35408 2014 10 19 56949 0.1799 0.2280 -0.35526 2014 10 20 56950 0.1780 0.2268 -0.35653 2014 10 21 56951 0.1760 0.2255 -0.35786 2014 10 22 56952 0.1741 0.2243 -0.35923 2014 10 23 56953 0.1721 0.2231 -0.36061 2014 10 24 56954 0.1701 0.2220 -0.36197 2014 10 25 56955 0.1681 0.2208 -0.36328 2014 10 26 56956 0.1660 0.2197 -0.36452 2014 10 27 56957 0.1639 0.2187 -0.36571 2014 10 28 56958 0.1618 0.2176 -0.36686 2014 10 29 56959 0.1597 0.2166 -0.36803 2014 10 30 56960 0.1576 0.2157 -0.36928 2014 10 31 56961 0.1554 0.2147 -0.37065 2014 11 1 56962 0.1533 0.2138 -0.37217 2014 11 2 56963 0.1511 0.2129 -0.37383 2014 11 3 56964 0.1489 0.2121 -0.37560 2014 11 4 56965 0.1466 0.2113 -0.37741 2014 11 5 56966 0.1444 0.2105 -0.37918 2014 11 6 56967 0.1421 0.2098 -0.38084 2014 11 7 56968 0.1399 0.2091 -0.38235 2014 11 8 56969 0.1376 0.2084 -0.38370 2014 11 9 56970 0.1353 0.2078 -0.38491 2014 11 10 56971 0.1330 0.2072 -0.38604 2014 11 11 56972 0.1306 0.2066 -0.38713 2014 11 12 56973 0.1283 0.2061 -0.38822 2014 11 13 56974 0.1260 0.2056 -0.38936 2014 11 14 56975 0.1236 0.2051 -0.39055 2014 11 15 56976 0.1212 0.2047 -0.39182 2014 11 16 56977 0.1188 0.2043 -0.39316 2014 11 17 56978 0.1165 0.2040 -0.39455 2014 11 18 56979 0.1141 0.2037 -0.39596 2014 11 19 56980 0.1117 0.2034 -0.39736 2014 11 20 56981 0.1092 0.2032 -0.39872 2014 11 21 56982 0.1068 0.2030 -0.40002 2014 11 22 56983 0.1044 0.2028 -0.40123 2014 11 23 56984 0.1020 0.2027 -0.40235 2014 11 24 56985 0.0995 0.2026 -0.40341 2014 11 25 56986 0.0971 0.2025 -0.40444 2014 11 26 56987 0.0947 0.2025 -0.40551 2014 11 27 56988 0.0922 0.2025 -0.40665 2014 11 28 56989 0.0898 0.2026 -0.40792 2014 11 29 56990 0.0874 0.2027 -0.40931 2014 11 30 56991 0.0849 0.2028 -0.41080 2014 12 1 56992 0.0825 0.2030 -0.41234 2014 12 2 56993 0.0800 0.2032 -0.41386 2014 12 3 56994 0.0776 0.2035 -0.41529 2014 12 4 56995 0.0751 0.2038 -0.41660 2014 12 5 56996 0.0727 0.2041 -0.41775 2014 12 6 56997 0.0703 0.2045 -0.41873 2014 12 7 56998 0.0679 0.2049 -0.41957 2014 12 8 56999 0.0654 0.2053 -0.42030 2014 12 9 57000 0.0630 0.2058 -0.42099 2014 12 10 57001 0.0606 0.2063 -0.42169 2014 12 11 57002 0.0582 0.2069 -0.42245 2014 12 12 57003 0.0558 0.2075 -0.42329 2014 12 13 57004 0.0535 0.2081 -0.42422 2014 12 14 57005 0.0511 0.2087 -0.42520 2014 12 15 57006 0.0487 0.2094 -0.42622 2014 12 16 57007 0.0464 0.2102 -0.42726 2014 12 17 57008 0.0440 0.2110 -0.42830 2014 12 18 57009 0.0417 0.2118 -0.42930 2014 12 19 57010 0.0394 0.2126 -0.43032 2014 12 20 57011 0.0371 0.2135 -0.43130 2014 12 21 57012 0.0348 0.2144 -0.43226 2014 12 22 57013 0.0325 0.2154 -0.43322 2014 12 23 57014 0.0303 0.2164 -0.43415 2014 12 24 57015 0.0280 0.2174 -0.43515 2014 12 25 57016 0.0258 0.2185 -0.43623 2014 12 26 57017 0.0236 0.2196 -0.43743 2014 12 27 57018 0.0214 0.2207 -0.43870 2014 12 28 57019 0.0192 0.2219 -0.44006 2014 12 29 57020 0.0171 0.2231 -0.44137 2014 12 30 57021 0.0149 0.2243 -0.44261 2014 12 31 57022 0.0128 0.2256 -0.44375 2015 1 1 57023 0.0107 0.2269 -0.44474 2015 1 2 57024 0.0087 0.2282 -0.44565 2015 1 3 57025 0.0066 0.2296 -0.44653 2015 1 4 57026 0.0046 0.2310 -0.44737 2015 1 5 57027 0.0026 0.2324 -0.44820 2015 1 6 57028 0.0006 0.2339 -0.44896 2015 1 7 57029 -0.0013 0.2354 -0.44971 2015 1 8 57030 -0.0033 0.2369 -0.45051 2015 1 9 57031 -0.0052 0.2385 -0.45138 2015 1 10 57032 -0.0070 0.2401 -0.45237 2015 1 11 57033 -0.0089 0.2417 -0.45342 2015 1 12 57034 -0.0107 0.2434 -0.45449 2015 1 13 57035 -0.0125 0.2450 -0.45551 2015 1 14 57036 -0.0143 0.2467 -0.45649 2015 1 15 57037 -0.0160 0.2485 -0.45744 2015 1 16 57038 -0.0177 0.2502 -0.45834 2015 1 17 57039 -0.0194 0.2520 -0.45920 2015 1 18 57040 -0.0210 0.2539 -0.46009 2015 1 19 57041 -0.0226 0.2557 -0.46102 2015 1 20 57042 -0.0242 0.2576 -0.46203 2015 1 21 57043 -0.0258 0.2595 -0.46320 2015 1 22 57044 -0.0273 0.2614 -0.46457 2015 1 23 57045 -0.0288 0.2633 -0.46609 2015 1 24 57046 -0.0302 0.2653 -0.46770 2015 1 25 57047 -0.0316 0.2673 -0.46925 2015 1 26 57048 -0.0330 0.2693 -0.47072 2015 1 27 57049 -0.0344 0.2714 -0.47207 2015 1 28 57050 -0.0357 0.2734 -0.47327 2015 1 29 57051 -0.0370 0.2755 -0.47431 2015 1 30 57052 -0.0382 0.2776 -0.47528 2015 1 31 57053 -0.0394 0.2797 -0.47618 2015 2 1 57054 -0.0406 0.2819 -0.47706 2015 2 2 57055 -0.0417 0.2841 -0.47792 2015 2 3 57056 -0.0428 0.2862 -0.47886 2015 2 4 57057 -0.0438 0.2884 -0.47985 2015 2 5 57058 -0.0449 0.2907 -0.48087 2015 2 6 57059 -0.0458 0.2929 -0.48195 2015 2 7 57060 -0.0468 0.2952 -0.48308 2015 2 8 57061 -0.0477 0.2974 -0.48429 2015 2 9 57062 -0.0485 0.2997 -0.48559 2015 2 10 57063 -0.0494 0.3020 -0.48690 2015 2 11 57064 -0.0501 0.3043 -0.48822 2015 2 12 57065 -0.0509 0.3066 -0.48949 2015 2 13 57066 -0.0516 0.3090 -0.49068 2015 2 14 57067 -0.0522 0.3113 -0.49183 2015 2 15 57068 -0.0528 0.3137 -0.49299 2015 2 16 57069 -0.0534 0.3161 -0.49421 2015 2 17 57070 -0.0540 0.3185 -0.49556 2015 2 18 57071 -0.0544 0.3209 -0.49714 2015 2 19 57072 -0.0549 0.3233 -0.49893 2015 2 20 57073 -0.0553 0.3257 -0.50086 2015 2 21 57074 -0.0557 0.3281 -0.50286 2015 2 22 57075 -0.0560 0.3305 -0.50485 2015 2 23 57076 -0.0563 0.3330 -0.50674 2015 2 24 57077 -0.0565 0.3354 -0.50851 2015 2 25 57078 -0.0567 0.3378 -0.51009 2015 2 26 57079 -0.0569 0.3403 -0.51152 2015 2 27 57080 -0.0570 0.3427 -0.51286 2015 2 28 57081 -0.0570 0.3452 -0.51417 2015 3 1 57082 -0.0570 0.3477 -0.51549 2015 3 2 57083 -0.0570 0.3501 -0.51681 2015 3 3 57084 -0.0570 0.3526 -0.51819 2015 3 4 57085 -0.0569 0.3550 -0.51962 2015 3 5 57086 -0.0567 0.3575 -0.52110 2015 3 6 57087 -0.0565 0.3600 -0.52264 2015 3 7 57088 -0.0563 0.3624 -0.52419 2015 3 8 57089 -0.0560 0.3649 -0.52576 2015 3 9 57090 -0.0557 0.3673 -0.52731 2015 3 10 57091 -0.0553 0.3698 -0.52884 2015 3 11 57092 -0.0549 0.3722 -0.53035 2015 3 12 57093 -0.0544 0.3747 -0.53185 2015 3 13 57094 -0.0539 0.3771 -0.53334 2015 3 14 57095 -0.0534 0.3796 -0.53485 2015 3 15 57096 -0.0528 0.3820 -0.53637 2015 3 16 57097 -0.0522 0.3844 -0.53800 2015 3 17 57098 -0.0515 0.3868 -0.53976 2015 3 18 57099 -0.0508 0.3892 -0.54166 2015 3 19 57100 -0.0500 0.3916 -0.54375 2015 3 20 57101 -0.0492 0.3940 -0.54596 2015 3 21 57102 -0.0484 0.3963 -0.54821 2015 3 22 57103 -0.0475 0.3987 -0.55035 2015 3 23 57104 -0.0466 0.4010 -0.55229 2015 3 24 57105 -0.0456 0.4034 -0.55403 2015 3 25 57106 -0.0446 0.4057 -0.55553 2015 3 26 57107 -0.0435 0.4080 -0.55687 2015 3 27 57108 -0.0424 0.4103 -0.55813 2015 3 28 57109 -0.0413 0.4126 -0.55932 2015 3 29 57110 -0.0401 0.4148 -0.56053 2015 3 30 57111 -0.0389 0.4171 -0.56181 2015 3 31 57112 -0.0377 0.4193 -0.56318 2015 4 1 57113 -0.0364 0.4215 -0.56468 2015 4 2 57114 -0.0350 0.4237 -0.56627 2015 4 3 57115 -0.0337 0.4259 -0.56796 2015 4 4 57116 -0.0323 0.4280 -0.56971 2015 4 5 57117 -0.0308 0.4301 -0.57149 2015 4 6 57118 -0.0293 0.4322 -0.57329 2015 4 7 57119 -0.0278 0.4343 -0.57506 2015 4 8 57120 -0.0262 0.4364 -0.57675 2015 4 9 57121 -0.0246 0.4384 -0.57839 2015 4 10 57122 -0.0230 0.4405 -0.57996 2015 4 11 57123 -0.0213 0.4425 -0.58158 2015 4 12 57124 -0.0196 0.4444 -0.58324 2015 4 13 57125 -0.0179 0.4464 -0.58495 2015 4 14 57126 -0.0161 0.4483 -0.58683 2015 4 15 57127 -0.0143 0.4502 -0.58883 2015 4 16 57128 -0.0124 0.4520 -0.59097 2015 4 17 57129 -0.0105 0.4539 -0.59316 2015 4 18 57130 -0.0086 0.4557 -0.59532 2015 4 19 57131 -0.0067 0.4575 -0.59731 2015 4 20 57132 -0.0047 0.4592 -0.59912 2015 4 21 57133 -0.0027 0.4610 -0.60073 2015 4 22 57134 -0.0007 0.4627 -0.60211 2015 4 23 57135 0.0014 0.4643 -0.60335 2015 4 24 57136 0.0035 0.4660 -0.60453 2015 4 25 57137 0.0057 0.4676 -0.60568 2015 4 26 57138 0.0078 0.4691 -0.60680 2015 4 27 57139 0.0100 0.4707 -0.60791 2015 4 28 57140 0.0122 0.4722 -0.60904 2015 4 29 57141 0.0145 0.4737 -0.61017 2015 4 30 57142 0.0167 0.4751 -0.61131 2015 5 1 57143 0.0190 0.4765 -0.61248 2015 5 2 57144 0.0214 0.4779 -0.61376 2015 5 3 57145 0.0237 0.4792 -0.61502 2015 5 4 57146 0.0261 0.4805 -0.61628 2015 5 5 57147 0.0285 0.4818 -0.61757 2015 5 6 57148 0.0309 0.4830 -0.61886 2015 5 7 57149 0.0333 0.4842 -0.62014 2015 5 8 57150 0.0358 0.4853 -0.62144 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) 56764 -79.37 0.30 -13.60 0.15 56765 -79.39 0.30 -13.82 0.15 56766 -79.38 0.20 -13.97 0.15 56767 -79.43 0.30 -14.00 0.15 56768 -79.51 0.30 -13.96 0.15 56769 -79.54 0.30 -13.91 0.15 56770 -79.43 0.30 -13.89 0.10 56771 -79.19 0.30 -13.82 0.10 56772 -78.96 0.30 -13.66 0.10 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56764 0.220 0.119 -0.136 0.150 56765 0.180 0.119 -0.159 0.150 56766 0.157 0.080 -0.160 0.150 56767 0.149 0.119 -0.156 0.150 56768 0.160 0.119 -0.150 0.150 56769 0.173 0.119 -0.119 0.150 56770 0.177 0.119 -0.103 0.100 56771 0.173 0.119 -0.102 0.100 56772 0.168 0.119 -0.122 0.100 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).