********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 1 May 2014 Vol. XXVII No. 018 ______________________________________________________________________ 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 = -0.2 seconds beginning 20 Feb 2014 at 0000 UTC = -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 4 25 56772 0.06861 .00009 0.44038 .00010 -0.237489 0.000013 14 4 26 56773 0.07030 .00009 0.44099 .00010 -0.239476 0.000015 14 4 27 56774 0.07179 .00009 0.44168 .00009 -0.241455 0.000017 14 4 28 56775 0.07303 .00009 0.44225 .00010 -0.243322 0.000016 14 4 29 56776 0.07439 .00009 0.44257 .00010 -0.245033 0.000015 14 4 30 56777 0.07613 .00009 0.44280 .00009 -0.246524 0.000014 14 5 1 56778 0.07807 .00009 0.44315 .00009 -0.247844 0.000014 IERS Final Values MJD x y UT1-UTC " " s 14 3 2 56718 0.0202 0.3879 -0.16370 14 3 3 56719 0.0204 0.3893 -0.16566 14 3 4 56720 0.0205 0.3908 -0.16753 14 3 5 56721 0.0204 0.3920 -0.16922 14 3 6 56722 0.0204 0.3929 -0.17074 14 3 7 56723 0.0203 0.3940 -0.17211 14 3 8 56724 0.0201 0.3951 -0.17335 14 3 9 56725 0.0199 0.3961 -0.17448 14 3 10 56726 0.0195 0.3969 -0.17556 14 3 11 56727 0.0193 0.3980 -0.17662 14 3 12 56728 0.0195 0.3991 -0.17766 14 3 13 56729 0.0203 0.4002 -0.17877 14 3 14 56730 0.0215 0.4012 -0.17997 14 3 15 56731 0.0225 0.4024 -0.18124 14 3 16 56732 0.0236 0.4037 -0.18251 14 3 17 56733 0.0245 0.4049 -0.18379 14 3 18 56734 0.0249 0.4056 -0.18504 14 3 19 56735 0.0254 0.4060 -0.18625 14 3 20 56736 0.0262 0.4065 -0.18744 14 3 21 56737 0.0274 0.4071 -0.18858 14 3 22 56738 0.0283 0.4084 -0.18968 14 3 23 56739 0.0295 0.4098 -0.19083 14 3 24 56740 0.0309 0.4113 -0.19204 14 3 25 56741 0.0323 0.4126 -0.19335 14 3 26 56742 0.0336 0.4141 -0.19479 14 3 27 56743 0.0351 0.4152 -0.19639 14 3 28 56744 0.0368 0.4160 -0.19810 14 3 29 56745 0.0385 0.4169 -0.19988 14 3 30 56746 0.0404 0.4181 -0.20168 14 3 31 56747 0.0422 0.4195 -0.20341 14 4 1 56748 0.0436 0.4209 -0.20501 _______________________________________________________________________ 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 = 0.0994 - 0.0561 cos A + 0.0811 sin A + 0.0465 cos C + 0.0166 sin C y = 0.3524 + 0.0750 cos A + 0.0537 sin A + 0.0166 cos C - 0.0465 sin C UT1-UTC = -0.2172 - 0.00100 (MJD - 56786) - (UT2-UT1) where A = 2*pi*(MJD-56778)/365.25 and C = 2*pi*(MJD-56778)/435. TAI-UTC(MJD 56779) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56778)**0.80 S t = 0.00025 (MJD-56778)**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 2 56779 0.0800 0.4436 -0.24902 2014 5 3 56780 0.0820 0.4441 -0.25011 2014 5 4 56781 0.0839 0.4446 -0.25117 2014 5 5 56782 0.0858 0.4451 -0.25222 2014 5 6 56783 0.0876 0.4456 -0.25330 2014 5 7 56784 0.0894 0.4460 -0.25441 2014 5 8 56785 0.0912 0.4463 -0.25559 2014 5 9 56786 0.0931 0.4465 -0.25683 2014 5 10 56787 0.0949 0.4468 -0.25814 2014 5 11 56788 0.0968 0.4470 -0.25951 2014 5 12 56789 0.0987 0.4472 -0.26089 2014 5 13 56790 0.1006 0.4474 -0.26225 2014 5 14 56791 0.1025 0.4476 -0.26355 2014 5 15 56792 0.1045 0.4477 -0.26477 2014 5 16 56793 0.1064 0.4478 -0.26592 2014 5 17 56794 0.1083 0.4479 -0.26700 2014 5 18 56795 0.1102 0.4479 -0.26807 2014 5 19 56796 0.1122 0.4479 -0.26916 2014 5 20 56797 0.1141 0.4479 -0.27031 2014 5 21 56798 0.1161 0.4478 -0.27150 2014 5 22 56799 0.1180 0.4477 -0.27273 2014 5 23 56800 0.1200 0.4476 -0.27398 2014 5 24 56801 0.1219 0.4475 -0.27517 2014 5 25 56802 0.1239 0.4473 -0.27628 2014 5 26 56803 0.1259 0.4471 -0.27725 2014 5 27 56804 0.1278 0.4468 -0.27805 2014 5 28 56805 0.1298 0.4466 -0.27869 2014 5 29 56806 0.1317 0.4463 -0.27917 2014 5 30 56807 0.1337 0.4459 -0.27953 2014 5 31 56808 0.1356 0.4456 -0.27984 2014 6 1 56809 0.1376 0.4452 -0.28013 2014 6 2 56810 0.1395 0.4448 -0.28044 2014 6 3 56811 0.1415 0.4443 -0.28078 2014 6 4 56812 0.1434 0.4438 -0.28117 2014 6 5 56813 0.1453 0.4433 -0.28161 2014 6 6 56814 0.1473 0.4428 -0.28210 2014 6 7 56815 0.1492 0.4422 -0.28263 2014 6 8 56816 0.1511 0.4416 -0.28318 2014 6 9 56817 0.1530 0.4409 -0.28372 2014 6 10 56818 0.1549 0.4403 -0.28422 2014 6 11 56819 0.1568 0.4396 -0.28465 2014 6 12 56820 0.1586 0.4388 -0.28502 2014 6 13 56821 0.1605 0.4381 -0.28533 2014 6 14 56822 0.1624 0.4373 -0.28565 2014 6 15 56823 0.1642 0.4365 -0.28603 2014 6 16 56824 0.1660 0.4356 -0.28651 2014 6 17 56825 0.1679 0.4347 -0.28710 2014 6 18 56826 0.1697 0.4338 -0.28779 2014 6 19 56827 0.1714 0.4329 -0.28852 2014 6 20 56828 0.1732 0.4319 -0.28921 2014 6 21 56829 0.1750 0.4309 -0.28981 2014 6 22 56830 0.1767 0.4299 -0.29027 2014 6 23 56831 0.1785 0.4289 -0.29057 2014 6 24 56832 0.1802 0.4278 -0.29070 2014 6 25 56833 0.1819 0.4267 -0.29068 2014 6 26 56834 0.1836 0.4256 -0.29056 2014 6 27 56835 0.1852 0.4244 -0.29037 2014 6 28 56836 0.1869 0.4232 -0.29018 2014 6 29 56837 0.1885 0.4220 -0.29000 2014 6 30 56838 0.1901 0.4208 -0.28989 2014 7 1 56839 0.1917 0.4195 -0.28984 2014 7 2 56840 0.1933 0.4182 -0.28988 2014 7 3 56841 0.1948 0.4169 -0.29000 2014 7 4 56842 0.1963 0.4155 -0.29018 2014 7 5 56843 0.1978 0.4142 -0.29038 2014 7 6 56844 0.1993 0.4128 -0.29059 2014 7 7 56845 0.2008 0.4114 -0.29077 2014 7 8 56846 0.2022 0.4099 -0.29089 2014 7 9 56847 0.2036 0.4085 -0.29095 2014 7 10 56848 0.2050 0.4070 -0.29097 2014 7 11 56849 0.2063 0.4055 -0.29098 2014 7 12 56850 0.2077 0.4039 -0.29104 2014 7 13 56851 0.2090 0.4024 -0.29122 2014 7 14 56852 0.2103 0.4008 -0.29157 2014 7 15 56853 0.2115 0.3992 -0.29205 2014 7 16 56854 0.2127 0.3976 -0.29263 2014 7 17 56855 0.2139 0.3959 -0.29322 2014 7 18 56856 0.2151 0.3943 -0.29374 2014 7 19 56857 0.2163 0.3926 -0.29412 2014 7 20 56858 0.2174 0.3909 -0.29434 2014 7 21 56859 0.2185 0.3892 -0.29440 2014 7 22 56860 0.2195 0.3874 -0.29432 2014 7 23 56861 0.2205 0.3857 -0.29414 2014 7 24 56862 0.2215 0.3839 -0.29391 2014 7 25 56863 0.2225 0.3821 -0.29366 2014 7 26 56864 0.2234 0.3803 -0.29343 2014 7 27 56865 0.2243 0.3785 -0.29327 2014 7 28 56866 0.2252 0.3767 -0.29319 2014 7 29 56867 0.2260 0.3748 -0.29320 2014 7 30 56868 0.2268 0.3729 -0.29329 2014 7 31 56869 0.2276 0.3711 -0.29345 2014 8 1 56870 0.2283 0.3692 -0.29366 2014 8 2 56871 0.2291 0.3673 -0.29388 2014 8 3 56872 0.2297 0.3653 -0.29409 2014 8 4 56873 0.2304 0.3634 -0.29427 2014 8 5 56874 0.2310 0.3615 -0.29440 2014 8 6 56875 0.2315 0.3595 -0.29450 2014 8 7 56876 0.2321 0.3575 -0.29458 2014 8 8 56877 0.2326 0.3556 -0.29471 2014 8 9 56878 0.2330 0.3536 -0.29495 2014 8 10 56879 0.2335 0.3516 -0.29535 2014 8 11 56880 0.2339 0.3496 -0.29594 2014 8 12 56881 0.2342 0.3476 -0.29667 2014 8 13 56882 0.2346 0.3455 -0.29748 2014 8 14 56883 0.2348 0.3435 -0.29827 2014 8 15 56884 0.2351 0.3415 -0.29896 2014 8 16 56885 0.2353 0.3394 -0.29949 2014 8 17 56886 0.2355 0.3374 -0.29986 2014 8 18 56887 0.2356 0.3354 -0.30007 2014 8 19 56888 0.2357 0.3333 -0.30017 2014 8 20 56889 0.2358 0.3312 -0.30020 2014 8 21 56890 0.2358 0.3292 -0.30022 2014 8 22 56891 0.2358 0.3271 -0.30026 2014 8 23 56892 0.2358 0.3251 -0.30037 2014 8 24 56893 0.2357 0.3230 -0.30055 2014 8 25 56894 0.2356 0.3209 -0.30084 2014 8 26 56895 0.2354 0.3189 -0.30121 2014 8 27 56896 0.2352 0.3168 -0.30167 2014 8 28 56897 0.2350 0.3148 -0.30219 2014 8 29 56898 0.2347 0.3127 -0.30274 2014 8 30 56899 0.2344 0.3106 -0.30329 2014 8 31 56900 0.2341 0.3086 -0.30380 2014 9 1 56901 0.2337 0.3065 -0.30428 2014 9 2 56902 0.2333 0.3045 -0.30472 2014 9 3 56903 0.2329 0.3024 -0.30514 2014 9 4 56904 0.2324 0.3004 -0.30560 2014 9 5 56905 0.2318 0.2984 -0.30615 2014 9 6 56906 0.2313 0.2963 -0.30685 2014 9 7 56907 0.2307 0.2943 -0.30774 2014 9 8 56908 0.2300 0.2923 -0.30882 2014 9 9 56909 0.2294 0.2903 -0.31005 2014 9 10 56910 0.2286 0.2883 -0.31134 2014 9 11 56911 0.2279 0.2863 -0.31258 2014 9 12 56912 0.2271 0.2844 -0.31369 2014 9 13 56913 0.2263 0.2824 -0.31465 2014 9 14 56914 0.2254 0.2805 -0.31544 2014 9 15 56915 0.2245 0.2785 -0.31609 2014 9 16 56916 0.2236 0.2766 -0.31667 2014 9 17 56917 0.2226 0.2747 -0.31720 2014 9 18 56918 0.2216 0.2728 -0.31775 2014 9 19 56919 0.2206 0.2709 -0.31834 2014 9 20 56920 0.2195 0.2690 -0.31901 2014 9 21 56921 0.2184 0.2672 -0.31977 2014 9 22 56922 0.2173 0.2653 -0.32063 2014 9 23 56923 0.2161 0.2635 -0.32158 2014 9 24 56924 0.2149 0.2617 -0.32259 2014 9 25 56925 0.2136 0.2599 -0.32364 2014 9 26 56926 0.2124 0.2581 -0.32470 2014 9 27 56927 0.2111 0.2564 -0.32573 2014 9 28 56928 0.2097 0.2546 -0.32672 2014 9 29 56929 0.2083 0.2529 -0.32765 2014 9 30 56930 0.2069 0.2512 -0.32855 2014 10 1 56931 0.2055 0.2495 -0.32945 2014 10 2 56932 0.2040 0.2479 -0.33041 2014 10 3 56933 0.2025 0.2462 -0.33149 2014 10 4 56934 0.2010 0.2446 -0.33273 2014 10 5 56935 0.1994 0.2430 -0.33416 2014 10 6 56936 0.1978 0.2415 -0.33575 2014 10 7 56937 0.1962 0.2399 -0.33744 2014 10 8 56938 0.1945 0.2384 -0.33915 2014 10 9 56939 0.1929 0.2369 -0.34079 2014 10 10 56940 0.1911 0.2354 -0.34228 2014 10 11 56941 0.1894 0.2340 -0.34361 2014 10 12 56942 0.1876 0.2326 -0.34478 2014 10 13 56943 0.1858 0.2312 -0.34584 2014 10 14 56944 0.1840 0.2298 -0.34682 2014 10 15 56945 0.1822 0.2285 -0.34779 2014 10 16 56946 0.1803 0.2272 -0.34878 2014 10 17 56947 0.1784 0.2259 -0.34982 2014 10 18 56948 0.1765 0.2246 -0.35094 2014 10 19 56949 0.1745 0.2234 -0.35215 2014 10 20 56950 0.1726 0.2222 -0.35343 2014 10 21 56951 0.1706 0.2210 -0.35478 2014 10 22 56952 0.1685 0.2199 -0.35617 2014 10 23 56953 0.1665 0.2188 -0.35756 2014 10 24 56954 0.1644 0.2177 -0.35894 2014 10 25 56955 0.1623 0.2166 -0.36025 2014 10 26 56956 0.1602 0.2156 -0.36151 2014 10 27 56957 0.1581 0.2147 -0.36270 2014 10 28 56958 0.1560 0.2137 -0.36386 2014 10 29 56959 0.1538 0.2128 -0.36504 2014 10 30 56960 0.1516 0.2119 -0.36630 2014 10 31 56961 0.1494 0.2110 -0.36768 2014 11 1 56962 0.1472 0.2102 -0.36922 2014 11 2 56963 0.1450 0.2094 -0.37090 2014 11 3 56964 0.1427 0.2087 -0.37269 2014 11 4 56965 0.1404 0.2080 -0.37452 2014 11 5 56966 0.1382 0.2073 -0.37632 2014 11 6 56967 0.1359 0.2066 -0.37802 2014 11 7 56968 0.1335 0.2060 -0.37956 2014 11 8 56969 0.1312 0.2054 -0.38093 2014 11 9 56970 0.1289 0.2049 -0.38216 2014 11 10 56971 0.1265 0.2044 -0.38328 2014 11 11 56972 0.1242 0.2039 -0.38434 2014 11 12 56973 0.1218 0.2035 -0.38537 2014 11 13 56974 0.1194 0.2031 -0.38641 2014 11 14 56975 0.1170 0.2027 -0.38749 2014 11 15 56976 0.1146 0.2024 -0.38863 2014 11 16 56977 0.1122 0.2021 -0.38982 2014 11 17 56978 0.1098 0.2019 -0.39105 2014 11 18 56979 0.1074 0.2017 -0.39232 2014 11 19 56980 0.1050 0.2015 -0.39359 2014 11 20 56981 0.1025 0.2013 -0.39485 2014 11 21 56982 0.1001 0.2012 -0.39607 2014 11 22 56983 0.0976 0.2012 -0.39724 2014 11 23 56984 0.0952 0.2011 -0.39833 2014 11 24 56985 0.0927 0.2012 -0.39936 2014 11 25 56986 0.0903 0.2012 -0.40037 2014 11 26 56987 0.0878 0.2013 -0.40141 2014 11 27 56988 0.0854 0.2014 -0.40252 2014 11 28 56989 0.0829 0.2016 -0.40375 2014 11 29 56990 0.0805 0.2018 -0.40511 2014 11 30 56991 0.0780 0.2020 -0.40657 2014 12 1 56992 0.0756 0.2023 -0.40806 2014 12 2 56993 0.0731 0.2026 -0.40953 2014 12 3 56994 0.0707 0.2030 -0.41092 2014 12 4 56995 0.0683 0.2033 -0.41218 2014 12 5 56996 0.0658 0.2038 -0.41332 2014 12 6 56997 0.0634 0.2042 -0.41435 2014 12 7 56998 0.0610 0.2047 -0.41529 2014 12 8 56999 0.0586 0.2053 -0.41617 2014 12 9 57000 0.0561 0.2059 -0.41700 2014 12 10 57001 0.0537 0.2065 -0.41781 2014 12 11 57002 0.0513 0.2071 -0.41862 2014 12 12 57003 0.0490 0.2078 -0.41947 2014 12 13 57004 0.0466 0.2086 -0.42037 2014 12 14 57005 0.0442 0.2093 -0.42137 2014 12 15 57006 0.0419 0.2101 -0.42239 2014 12 16 57007 0.0395 0.2110 -0.42346 2014 12 17 57008 0.0372 0.2118 -0.42454 2014 12 18 57009 0.0349 0.2128 -0.42560 2014 12 19 57010 0.0326 0.2137 -0.42666 2014 12 20 57011 0.0303 0.2147 -0.42775 2014 12 21 57012 0.0281 0.2157 -0.42882 2014 12 22 57013 0.0258 0.2168 -0.42987 2014 12 23 57014 0.0236 0.2179 -0.43089 2014 12 24 57015 0.0214 0.2190 -0.43194 2014 12 25 57016 0.0192 0.2201 -0.43311 2014 12 26 57017 0.0170 0.2213 -0.43440 2014 12 27 57018 0.0148 0.2226 -0.43585 2014 12 28 57019 0.0127 0.2238 -0.43735 2014 12 29 57020 0.0106 0.2251 -0.43880 2014 12 30 57021 0.0085 0.2265 -0.44010 2014 12 31 57022 0.0064 0.2278 -0.44125 2015 1 1 57023 0.0043 0.2292 -0.44226 2015 1 2 57024 0.0023 0.2307 -0.44312 2015 1 3 57025 0.0003 0.2321 -0.44387 2015 1 4 57026 -0.0017 0.2336 -0.44459 2015 1 5 57027 -0.0037 0.2352 -0.44530 2015 1 6 57028 -0.0056 0.2367 -0.44601 2015 1 7 57029 -0.0075 0.2383 -0.44678 2015 1 8 57030 -0.0094 0.2399 -0.44765 2015 1 9 57031 -0.0112 0.2416 -0.44858 2015 1 10 57032 -0.0131 0.2433 -0.44959 2015 1 11 57033 -0.0148 0.2450 -0.45061 2015 1 12 57034 -0.0166 0.2467 -0.45166 2015 1 13 57035 -0.0184 0.2485 -0.45272 2015 1 14 57036 -0.0201 0.2503 -0.45377 2015 1 15 57037 -0.0217 0.2521 -0.45479 2015 1 16 57038 -0.0234 0.2539 -0.45579 2015 1 17 57039 -0.0250 0.2558 -0.45678 2015 1 18 57040 -0.0266 0.2577 -0.45776 2015 1 19 57041 -0.0281 0.2596 -0.45874 2015 1 20 57042 -0.0297 0.2616 -0.45985 2015 1 21 57043 -0.0312 0.2636 -0.46108 2015 1 22 57044 -0.0326 0.2656 -0.46243 2015 1 23 57045 -0.0340 0.2676 -0.46391 2015 1 24 57046 -0.0354 0.2696 -0.46546 2015 1 25 57047 -0.0368 0.2717 -0.46705 2015 1 26 57048 -0.0381 0.2738 -0.46862 2015 1 27 57049 -0.0393 0.2759 -0.47007 2015 1 28 57050 -0.0406 0.2781 -0.47140 2015 1 29 57051 -0.0418 0.2802 -0.47258 2015 1 30 57052 -0.0430 0.2824 -0.47359 2015 1 31 57053 -0.0441 0.2846 -0.47451 2015 2 1 57054 -0.0452 0.2868 -0.47537 2015 2 2 57055 -0.0462 0.2890 -0.47624 2015 2 3 57056 -0.0472 0.2913 -0.47714 2015 2 4 57057 -0.0482 0.2935 -0.47815 2015 2 5 57058 -0.0492 0.2958 -0.47927 2015 2 6 57059 -0.0501 0.2981 -0.48044 2015 2 7 57060 -0.0509 0.3004 -0.48170 2015 2 8 57061 -0.0517 0.3028 -0.48302 2015 2 9 57062 -0.0525 0.3051 -0.48438 2015 2 10 57063 -0.0532 0.3075 -0.48579 2015 2 11 57064 -0.0539 0.3098 -0.48714 2015 2 12 57065 -0.0546 0.3122 -0.48845 2015 2 13 57066 -0.0552 0.3146 -0.48972 2015 2 14 57067 -0.0558 0.3170 -0.49101 2015 2 15 57068 -0.0563 0.3194 -0.49233 2015 2 16 57069 -0.0568 0.3219 -0.49369 2015 2 17 57070 -0.0572 0.3243 -0.49520 2015 2 18 57071 -0.0576 0.3267 -0.49688 2015 2 19 57072 -0.0580 0.3292 -0.49871 2015 2 20 57073 -0.0583 0.3317 -0.50069 2015 2 21 57074 -0.0586 0.3341 -0.50268 2015 2 22 57075 -0.0588 0.3366 -0.50463 2015 2 23 57076 -0.0590 0.3391 -0.50644 2015 2 24 57077 -0.0591 0.3415 -0.50810 2015 2 25 57078 -0.0592 0.3440 -0.50962 2015 2 26 57079 -0.0593 0.3465 -0.51103 2015 2 27 57080 -0.0593 0.3490 -0.51236 2015 2 28 57081 -0.0593 0.3515 -0.51368 2015 3 1 57082 -0.0592 0.3540 -0.51494 2015 3 2 57083 -0.0591 0.3565 -0.51625 2015 3 3 57084 -0.0589 0.3590 -0.51757 2015 3 4 57085 -0.0587 0.3615 -0.51892 2015 3 5 57086 -0.0584 0.3639 -0.52035 2015 3 6 57087 -0.0581 0.3664 -0.52185 2015 3 7 57088 -0.0578 0.3689 -0.52341 2015 3 8 57089 -0.0574 0.3714 -0.52496 2015 3 9 57090 -0.0570 0.3739 -0.52646 2015 3 10 57091 -0.0565 0.3763 -0.52789 2015 3 11 57092 -0.0560 0.3788 -0.52923 2015 3 12 57093 -0.0555 0.3813 -0.53048 2015 3 13 57094 -0.0549 0.3837 -0.53170 2015 3 14 57095 -0.0542 0.3862 -0.53289 2015 3 15 57096 -0.0535 0.3886 -0.53414 2015 3 16 57097 -0.0528 0.3910 -0.53554 2015 3 17 57098 -0.0520 0.3934 -0.53713 2015 3 18 57099 -0.0512 0.3958 -0.53897 2015 3 19 57100 -0.0503 0.3982 -0.54104 2015 3 20 57101 -0.0494 0.4006 -0.54328 2015 3 21 57102 -0.0485 0.4030 -0.54559 2015 3 22 57103 -0.0475 0.4053 -0.54786 2015 3 23 57104 -0.0465 0.4077 -0.55004 2015 3 24 57105 -0.0454 0.4100 -0.55206 2015 3 25 57106 -0.0443 0.4123 -0.55390 2015 3 26 57107 -0.0431 0.4146 -0.55561 2015 3 27 57108 -0.0419 0.4169 -0.55720 2015 3 28 57109 -0.0407 0.4192 -0.55880 2015 3 29 57110 -0.0394 0.4214 -0.56037 2015 3 30 57111 -0.0381 0.4237 -0.56192 2015 3 31 57112 -0.0367 0.4259 -0.56355 2015 4 1 57113 -0.0353 0.4281 -0.56518 2015 4 2 57114 -0.0339 0.4302 -0.56686 2015 4 3 57115 -0.0324 0.4324 -0.56857 2015 4 4 57116 -0.0309 0.4345 -0.57028 2015 4 5 57117 -0.0294 0.4366 -0.57192 2015 4 6 57118 -0.0278 0.4387 -0.57353 2015 4 7 57119 -0.0261 0.4408 -0.57506 2015 4 8 57120 -0.0245 0.4428 -0.57646 2015 4 9 57121 -0.0228 0.4448 -0.57777 2015 4 10 57122 -0.0210 0.4468 -0.57907 2015 4 11 57123 -0.0193 0.4488 -0.58036 2015 4 12 57124 -0.0174 0.4507 -0.58167 2015 4 13 57125 -0.0156 0.4526 -0.58306 2015 4 14 57126 -0.0137 0.4545 -0.58459 2015 4 15 57127 -0.0118 0.4564 -0.58624 2015 4 16 57128 -0.0099 0.4582 -0.58801 2015 4 17 57129 -0.0079 0.4600 -0.58987 2015 4 18 57130 -0.0059 0.4618 -0.59183 2015 4 19 57131 -0.0038 0.4635 -0.59371 2015 4 20 57132 -0.0017 0.4652 -0.59548 2015 4 21 57133 0.0004 0.4669 -0.59716 2015 4 22 57134 0.0025 0.4685 -0.59875 2015 4 23 57135 0.0047 0.4702 -0.60029 2015 4 24 57136 0.0069 0.4717 -0.60179 2015 4 25 57137 0.0091 0.4733 -0.60322 2015 4 26 57138 0.0113 0.4748 -0.60464 2015 4 27 57139 0.0136 0.4763 -0.60613 2015 4 28 57140 0.0159 0.4777 -0.60768 2015 4 29 57141 0.0183 0.4792 -0.60930 2015 4 30 57142 0.0206 0.4805 -0.61096 2015 5 1 57143 0.0230 0.4819 -0.61260 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) 56756 -78.61 0.30 -13.47 0.03 56757 -78.32 0.30 -13.46 0.03 56758 -78.34 0.30 -13.45 0.03 56759 -78.55 0.30 -13.47 0.08 56760 -78.78 0.30 -13.51 0.05 56761 -78.97 0.30 -13.49 0.04 56762 -79.14 0.30 -13.44 0.03 56763 -79.30 0.30 -13.47 0.03 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 56718 -80.9 -10.9 56719 -80.7 -11.1 56720 -80.7 -11.4 56721 -80.9 -11.5 56722 -80.9 -11.6 56723 -80.7 -11.7 56724 -80.6 -11.9 56725 -80.7 -12.1 56726 -80.8 -12.2 56727 -80.7 -12.2 56728 -80.3 -12.3 56729 -80.0 -12.2 56730 -79.8 -12.1 56731 -79.8 -12.1 56732 -79.8 -12.2 56733 -79.8 -12.3 56734 -79.9 -12.3 56735 -79.7 -12.2 56736 -79.5 -12.0 56737 -79.2 -11.9 56738 -79.1 -12.0 56739 -79.2 -12.3 56740 -79.4 -12.9 56741 -79.5 -13.0 56742 -79.4 -13.1 56743 -79.4 -13.0 56744 -79.5 -12.7 56745 -79.6 -12.4 56746 -79.8 -12.4 56747 -79.7 -12.6 56748 -79.8 -12.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56756 0.445 0.119 -0.001 0.030 56757 0.443 0.119 -0.009 0.030 56758 0.419 0.119 -0.017 0.030 56759 0.394 0.119 -0.028 0.080 56760 0.368 0.119 -0.066 0.050 56761 0.336 0.119 -0.093 0.040 56762 0.298 0.119 -0.109 0.030 56763 0.253 0.119 -0.135 0.030 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 56718 0.27 0.02 56719 0.28 0.05 56720 0.30 -0.01 56721 0.29 0.02 56722 0.32 0.00 56723 0.37 0.00 56724 0.39 -0.05 56725 0.39 -0.11 56726 0.37 -0.11 56727 0.32 -0.06 56728 0.31 -0.14 56729 0.29 -0.06 56730 0.29 0.03 56731 0.26 0.06 56732 0.23 0.04 56733 0.21 0.03 56734 0.18 0.07 56735 0.30 0.19 56736 0.40 0.42 56737 0.52 0.58 56738 0.56 0.56 56739 0.53 0.36 56740 0.44 -0.13 56741 0.37 -0.09 56742 0.36 -0.11 56743 0.33 -0.11 56744 0.28 -0.07 56745 0.25 -0.01 56746 0.17 -0.01 56747 0.21 0.05 56748 0.18 0.07 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).