********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 20 March 2014 Vol. XXVII No. 012 ______________________________________________________________________ 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 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 3 14 56730 0.02143 .00009 0.40128 .00009 -0.179980 0.000014 14 3 15 56731 0.02252 .00009 0.40244 .00009 -0.181234 0.000014 14 3 16 56732 0.02357 .00009 0.40369 .00009 -0.182510 0.000010 14 3 17 56733 0.02441 .00009 0.40489 .00009 -0.183788 0.000006 14 3 18 56734 0.02488 .00009 0.40558 .00009 -0.185037 0.000005 14 3 19 56735 0.02536 .00009 0.40599 .00009 -0.186253 0.000004 14 3 20 56736 0.02615 .00009 0.40644 .00009 -0.187435 0.000055 _______________________________________________________________________ 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 = 0.0886 - 0.0979 cos A + 0.0419 sin A + 0.0377 cos C + 0.0255 sin C y = 0.3505 + 0.0352 cos A + 0.0909 sin A + 0.0255 cos C - 0.0377 sin C UT1-UTC = -0.1765 - 0.00101 (MJD - 56744) - (UT2-UT1) where A = 2*pi*(MJD-56736)/365.25 and C = 2*pi*(MJD-56736)/435. TAI-UTC(MJD 56737) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56736)**0.80 S t = 0.00025 (MJD-56736)**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 3 21 56737 0.0271 0.4072 -0.18862 2014 3 22 56738 0.0282 0.4079 -0.18977 2014 3 23 56739 0.0294 0.4088 -0.19091 2014 3 24 56740 0.0305 0.4099 -0.19209 2014 3 25 56741 0.0317 0.4110 -0.19336 2014 3 26 56742 0.0328 0.4121 -0.19477 2014 3 27 56743 0.0338 0.4132 -0.19635 2014 3 28 56744 0.0349 0.4142 -0.19808 2014 3 29 56745 0.0360 0.4152 -0.19992 2014 3 30 56746 0.0372 0.4161 -0.20178 2014 3 31 56747 0.0384 0.4170 -0.20355 2014 4 1 56748 0.0396 0.4179 -0.20516 2014 4 2 56749 0.0408 0.4189 -0.20654 2014 4 3 56750 0.0421 0.4199 -0.20773 2014 4 4 56751 0.0433 0.4208 -0.20878 2014 4 5 56752 0.0446 0.4218 -0.20977 2014 4 6 56753 0.0459 0.4227 -0.21073 2014 4 7 56754 0.0472 0.4236 -0.21173 2014 4 8 56755 0.0485 0.4245 -0.21280 2014 4 9 56756 0.0499 0.4254 -0.21396 2014 4 10 56757 0.0513 0.4262 -0.21524 2014 4 11 56758 0.0527 0.4271 -0.21664 2014 4 12 56759 0.0542 0.4279 -0.21815 2014 4 13 56760 0.0556 0.4287 -0.21973 2014 4 14 56761 0.0571 0.4295 -0.22134 2014 4 15 56762 0.0586 0.4303 -0.22295 2014 4 16 56763 0.0601 0.4311 -0.22451 2014 4 17 56764 0.0616 0.4318 -0.22598 2014 4 18 56765 0.0632 0.4325 -0.22737 2014 4 19 56766 0.0647 0.4332 -0.22867 2014 4 20 56767 0.0663 0.4339 -0.22993 2014 4 21 56768 0.0679 0.4346 -0.23121 2014 4 22 56769 0.0696 0.4352 -0.23255 2014 4 23 56770 0.0712 0.4358 -0.23399 2014 4 24 56771 0.0729 0.4364 -0.23554 2014 4 25 56772 0.0745 0.4369 -0.23718 2014 4 26 56773 0.0762 0.4375 -0.23886 2014 4 27 56774 0.0779 0.4380 -0.24052 2014 4 28 56775 0.0796 0.4385 -0.24208 2014 4 29 56776 0.0814 0.4389 -0.24350 2014 4 30 56777 0.0831 0.4394 -0.24476 2014 5 1 56778 0.0849 0.4398 -0.24587 2014 5 2 56779 0.0866 0.4402 -0.24687 2014 5 3 56780 0.0884 0.4405 -0.24778 2014 5 4 56781 0.0902 0.4409 -0.24867 2014 5 5 56782 0.0920 0.4412 -0.24955 2014 5 6 56783 0.0938 0.4415 -0.25046 2014 5 7 56784 0.0957 0.4417 -0.25144 2014 5 8 56785 0.0975 0.4419 -0.25250 2014 5 9 56786 0.0993 0.4421 -0.25363 2014 5 10 56787 0.1012 0.4423 -0.25483 2014 5 11 56788 0.1030 0.4425 -0.25607 2014 5 12 56789 0.1049 0.4426 -0.25734 2014 5 13 56790 0.1068 0.4426 -0.25857 2014 5 14 56791 0.1087 0.4427 -0.25975 2014 5 15 56792 0.1105 0.4427 -0.26083 2014 5 16 56793 0.1124 0.4427 -0.26183 2014 5 17 56794 0.1143 0.4427 -0.26278 2014 5 18 56795 0.1162 0.4426 -0.26372 2014 5 19 56796 0.1181 0.4425 -0.26472 2014 5 20 56797 0.1200 0.4424 -0.26580 2014 5 21 56798 0.1219 0.4423 -0.26699 2014 5 22 56799 0.1238 0.4421 -0.26825 2014 5 23 56800 0.1257 0.4419 -0.26953 2014 5 24 56801 0.1277 0.4416 -0.27079 2014 5 25 56802 0.1296 0.4414 -0.27195 2014 5 26 56803 0.1315 0.4411 -0.27297 2014 5 27 56804 0.1334 0.4408 -0.27383 2014 5 28 56805 0.1353 0.4404 -0.27452 2014 5 29 56806 0.1372 0.4400 -0.27508 2014 5 30 56807 0.1391 0.4396 -0.27555 2014 5 31 56808 0.1410 0.4391 -0.27595 2014 6 1 56809 0.1429 0.4387 -0.27635 2014 6 2 56810 0.1448 0.4382 -0.27677 2014 6 3 56811 0.1466 0.4376 -0.27723 2014 6 4 56812 0.1485 0.4371 -0.27776 2014 6 5 56813 0.1504 0.4365 -0.27835 2014 6 6 56814 0.1522 0.4358 -0.27899 2014 6 7 56815 0.1541 0.4352 -0.27967 2014 6 8 56816 0.1559 0.4345 -0.28036 2014 6 9 56817 0.1578 0.4338 -0.28103 2014 6 10 56818 0.1596 0.4331 -0.28165 2014 6 11 56819 0.1614 0.4323 -0.28218 2014 6 12 56820 0.1632 0.4315 -0.28264 2014 6 13 56821 0.1650 0.4307 -0.28304 2014 6 14 56822 0.1668 0.4298 -0.28343 2014 6 15 56823 0.1686 0.4289 -0.28386 2014 6 16 56824 0.1704 0.4280 -0.28439 2014 6 17 56825 0.1721 0.4271 -0.28503 2014 6 18 56826 0.1738 0.4261 -0.28576 2014 6 19 56827 0.1756 0.4251 -0.28652 2014 6 20 56828 0.1773 0.4241 -0.28724 2014 6 21 56829 0.1790 0.4230 -0.28787 2014 6 22 56830 0.1806 0.4219 -0.28837 2014 6 23 56831 0.1823 0.4208 -0.28871 2014 6 24 56832 0.1839 0.4197 -0.28889 2014 6 25 56833 0.1855 0.4185 -0.28892 2014 6 26 56834 0.1871 0.4174 -0.28886 2014 6 27 56835 0.1887 0.4161 -0.28874 2014 6 28 56836 0.1903 0.4149 -0.28860 2014 6 29 56837 0.1918 0.4136 -0.28850 2014 6 30 56838 0.1934 0.4124 -0.28844 2014 7 1 56839 0.1949 0.4111 -0.28845 2014 7 2 56840 0.1964 0.4097 -0.28854 2014 7 3 56841 0.1978 0.4084 -0.28870 2014 7 4 56842 0.1993 0.4070 -0.28891 2014 7 5 56843 0.2007 0.4056 -0.28915 2014 7 6 56844 0.2021 0.4041 -0.28938 2014 7 7 56845 0.2034 0.4027 -0.28958 2014 7 8 56846 0.2048 0.4012 -0.28973 2014 7 9 56847 0.2061 0.3997 -0.28982 2014 7 10 56848 0.2074 0.3982 -0.28986 2014 7 11 56849 0.2087 0.3967 -0.28989 2014 7 12 56850 0.2099 0.3951 -0.28997 2014 7 13 56851 0.2111 0.3935 -0.29017 2014 7 14 56852 0.2123 0.3919 -0.29051 2014 7 15 56853 0.2135 0.3903 -0.29100 2014 7 16 56854 0.2146 0.3886 -0.29157 2014 7 17 56855 0.2157 0.3870 -0.29215 2014 7 18 56856 0.2168 0.3853 -0.29265 2014 7 19 56857 0.2179 0.3836 -0.29302 2014 7 20 56858 0.2189 0.3819 -0.29323 2014 7 21 56859 0.2199 0.3802 -0.29329 2014 7 22 56860 0.2208 0.3784 -0.29321 2014 7 23 56861 0.2218 0.3766 -0.29303 2014 7 24 56862 0.2227 0.3749 -0.29279 2014 7 25 56863 0.2235 0.3731 -0.29254 2014 7 26 56864 0.2244 0.3713 -0.29232 2014 7 27 56865 0.2252 0.3694 -0.29216 2014 7 28 56866 0.2260 0.3676 -0.29208 2014 7 29 56867 0.2267 0.3657 -0.29209 2014 7 30 56868 0.2274 0.3639 -0.29218 2014 7 31 56869 0.2281 0.3620 -0.29234 2014 8 1 56870 0.2287 0.3601 -0.29254 2014 8 2 56871 0.2293 0.3582 -0.29276 2014 8 3 56872 0.2299 0.3563 -0.29297 2014 8 4 56873 0.2305 0.3543 -0.29315 2014 8 5 56874 0.2310 0.3524 -0.29328 2014 8 6 56875 0.2314 0.3505 -0.29337 2014 8 7 56876 0.2319 0.3485 -0.29346 2014 8 8 56877 0.2323 0.3466 -0.29360 2014 8 9 56878 0.2327 0.3446 -0.29386 2014 8 10 56879 0.2330 0.3426 -0.29428 2014 8 11 56880 0.2333 0.3406 -0.29488 2014 8 12 56881 0.2336 0.3386 -0.29564 2014 8 13 56882 0.2338 0.3366 -0.29647 2014 8 14 56883 0.2340 0.3346 -0.29729 2014 8 15 56884 0.2341 0.3326 -0.29800 2014 8 16 56885 0.2343 0.3306 -0.29856 2014 8 17 56886 0.2343 0.3286 -0.29895 2014 8 18 56887 0.2344 0.3266 -0.29920 2014 8 19 56888 0.2344 0.3246 -0.29934 2014 8 20 56889 0.2344 0.3225 -0.29941 2014 8 21 56890 0.2343 0.3205 -0.29947 2014 8 22 56891 0.2342 0.3185 -0.29956 2014 8 23 56892 0.2341 0.3165 -0.29971 2014 8 24 56893 0.2339 0.3144 -0.29995 2014 8 25 56894 0.2337 0.3124 -0.30029 2014 8 26 56895 0.2334 0.3104 -0.30072 2014 8 27 56896 0.2332 0.3084 -0.30124 2014 8 28 56897 0.2328 0.3063 -0.30182 2014 8 29 56898 0.2325 0.3043 -0.30244 2014 8 30 56899 0.2321 0.3023 -0.30305 2014 8 31 56900 0.2316 0.3003 -0.30364 2014 9 1 56901 0.2312 0.2983 -0.30420 2014 9 2 56902 0.2307 0.2963 -0.30471 2014 9 3 56903 0.2301 0.2943 -0.30521 2014 9 4 56904 0.2295 0.2924 -0.30575 2014 9 5 56905 0.2289 0.2904 -0.30637 2014 9 6 56906 0.2283 0.2884 -0.30715 2014 9 7 56907 0.2276 0.2865 -0.30812 2014 9 8 56908 0.2269 0.2845 -0.30928 2014 9 9 56909 0.2261 0.2826 -0.31058 2014 9 10 56910 0.2253 0.2806 -0.31193 2014 9 11 56911 0.2245 0.2787 -0.31324 2014 9 12 56912 0.2236 0.2768 -0.31441 2014 9 13 56913 0.2227 0.2749 -0.31541 2014 9 14 56914 0.2217 0.2730 -0.31625 2014 9 15 56915 0.2208 0.2712 -0.31694 2014 9 16 56916 0.2197 0.2693 -0.31754 2014 9 17 56917 0.2187 0.2675 -0.31810 2014 9 18 56918 0.2176 0.2656 -0.31865 2014 9 19 56919 0.2165 0.2638 -0.31924 2014 9 20 56920 0.2153 0.2620 -0.31989 2014 9 21 56921 0.2141 0.2602 -0.32061 2014 9 22 56922 0.2129 0.2585 -0.32141 2014 9 23 56923 0.2117 0.2567 -0.32227 2014 9 24 56924 0.2104 0.2550 -0.32317 2014 9 25 56925 0.2091 0.2533 -0.32408 2014 9 26 56926 0.2077 0.2516 -0.32497 2014 9 27 56927 0.2063 0.2499 -0.32583 2014 9 28 56928 0.2049 0.2483 -0.32664 2014 9 29 56929 0.2034 0.2466 -0.32740 2014 9 30 56930 0.2020 0.2450 -0.32815 2014 10 1 56931 0.2004 0.2434 -0.32893 2014 10 2 56932 0.1989 0.2419 -0.32979 2014 10 3 56933 0.1973 0.2403 -0.33079 2014 10 4 56934 0.1957 0.2388 -0.33198 2014 10 5 56935 0.1941 0.2373 -0.33337 2014 10 6 56936 0.1924 0.2358 -0.33495 2014 10 7 56937 0.1907 0.2344 -0.33664 2014 10 8 56938 0.1890 0.2329 -0.33837 2014 10 9 56939 0.1873 0.2315 -0.34002 2014 10 10 56940 0.1855 0.2302 -0.34154 2014 10 11 56941 0.1837 0.2288 -0.34289 2014 10 12 56942 0.1819 0.2275 -0.34408 2014 10 13 56943 0.1800 0.2262 -0.34514 2014 10 14 56944 0.1781 0.2249 -0.34614 2014 10 15 56945 0.1762 0.2237 -0.34713 2014 10 16 56946 0.1743 0.2225 -0.34814 2014 10 17 56947 0.1723 0.2213 -0.34921 2014 10 18 56948 0.1703 0.2202 -0.35037 2014 10 19 56949 0.1683 0.2190 -0.35162 2014 10 20 56950 0.1663 0.2179 -0.35294 2014 10 21 56951 0.1643 0.2169 -0.35433 2014 10 22 56952 0.1622 0.2159 -0.35576 2014 10 23 56953 0.1601 0.2148 -0.35721 2014 10 24 56954 0.1580 0.2139 -0.35865 2014 10 25 56955 0.1558 0.2129 -0.36005 2014 10 26 56956 0.1537 0.2120 -0.36139 2014 10 27 56957 0.1515 0.2112 -0.36267 2014 10 28 56958 0.1493 0.2103 -0.36391 2014 10 29 56959 0.1471 0.2095 -0.36516 2014 10 30 56960 0.1449 0.2087 -0.36644 2014 10 31 56961 0.1427 0.2080 -0.36783 2014 11 1 56962 0.1404 0.2073 -0.36936 2014 11 2 56963 0.1381 0.2066 -0.37107 2014 11 3 56964 0.1358 0.2060 -0.37295 2014 11 4 56965 0.1335 0.2054 -0.37489 2014 11 5 56966 0.1312 0.2048 -0.37683 2014 11 6 56967 0.1289 0.2043 -0.37866 2014 11 7 56968 0.1265 0.2038 -0.38028 2014 11 8 56969 0.1242 0.2033 -0.38172 2014 11 9 56970 0.1218 0.2029 -0.38300 2014 11 10 56971 0.1194 0.2025 -0.38416 2014 11 11 56972 0.1170 0.2021 -0.38527 2014 11 12 56973 0.1147 0.2018 -0.38640 2014 11 13 56974 0.1122 0.2015 -0.38759 2014 11 14 56975 0.1098 0.2013 -0.38883 2014 11 15 56976 0.1074 0.2011 -0.39015 2014 11 16 56977 0.1050 0.2009 -0.39156 2014 11 17 56978 0.1026 0.2008 -0.39306 2014 11 18 56979 0.1001 0.2007 -0.39465 2014 11 19 56980 0.0977 0.2006 -0.39622 2014 11 20 56981 0.0952 0.2006 -0.39777 2014 11 21 56982 0.0928 0.2006 -0.39928 2014 11 22 56983 0.0903 0.2007 -0.40075 2014 11 23 56984 0.0879 0.2007 -0.40215 2014 11 24 56985 0.0854 0.2009 -0.40348 2014 11 25 56986 0.0829 0.2010 -0.40479 2014 11 26 56987 0.0805 0.2012 -0.40613 2014 11 27 56988 0.0780 0.2015 -0.40753 2014 11 28 56989 0.0756 0.2018 -0.40906 2014 11 29 56990 0.0731 0.2021 -0.41066 2014 11 30 56991 0.0707 0.2024 -0.41235 2014 12 1 56992 0.0682 0.2028 -0.41406 2014 12 2 56993 0.0658 0.2033 -0.41575 2014 12 3 56994 0.0633 0.2037 -0.41737 2014 12 4 56995 0.0609 0.2042 -0.41890 2014 12 5 56996 0.0585 0.2048 -0.42029 2014 12 6 56997 0.0561 0.2054 -0.42157 2014 12 7 56998 0.0536 0.2060 -0.42270 2014 12 8 56999 0.0512 0.2066 -0.42377 2014 12 9 57000 0.0489 0.2073 -0.42477 2014 12 10 57001 0.0465 0.2081 -0.42575 2014 12 11 57002 0.0441 0.2088 -0.42677 2014 12 12 57003 0.0417 0.2096 -0.42785 2014 12 13 57004 0.0394 0.2105 -0.42901 2014 12 14 57005 0.0370 0.2113 -0.43019 2014 12 15 57006 0.0347 0.2123 -0.43137 2014 12 16 57007 0.0324 0.2132 -0.43254 2014 12 17 57008 0.0301 0.2142 -0.43365 2014 12 18 57009 0.0278 0.2152 -0.43469 2014 12 19 57010 0.0255 0.2163 -0.43568 2014 12 20 57011 0.0233 0.2174 -0.43658 2014 12 21 57012 0.0211 0.2185 -0.43745 2014 12 22 57013 0.0188 0.2197 -0.43834 2014 12 23 57014 0.0166 0.2209 -0.43929 2014 12 24 57015 0.0145 0.2221 -0.44039 2014 12 25 57016 0.0123 0.2234 -0.44167 2014 12 26 57017 0.0102 0.2247 -0.44313 2014 12 27 57018 0.0080 0.2260 -0.44473 2014 12 28 57019 0.0059 0.2274 -0.44641 2014 12 29 57020 0.0039 0.2288 -0.44810 2014 12 30 57021 0.0018 0.2302 -0.44974 2014 12 31 57022 -0.0002 0.2317 -0.45122 2015 1 1 57023 -0.0022 0.2332 -0.45256 2015 1 2 57024 -0.0042 0.2347 -0.45374 2015 1 3 57025 -0.0062 0.2363 -0.45484 2015 1 4 57026 -0.0081 0.2379 -0.45585 2015 1 5 57027 -0.0100 0.2395 -0.45677 2015 1 6 57028 -0.0119 0.2411 -0.45772 2015 1 7 57029 -0.0137 0.2428 -0.45866 2015 1 8 57030 -0.0156 0.2445 -0.45966 2015 1 9 57031 -0.0174 0.2463 -0.46072 2015 1 10 57032 -0.0191 0.2480 -0.46182 2015 1 11 57033 -0.0209 0.2498 -0.46292 2015 1 12 57034 -0.0226 0.2517 -0.46403 2015 1 13 57035 -0.0242 0.2535 -0.46514 2015 1 14 57036 -0.0259 0.2554 -0.46617 2015 1 15 57037 -0.0275 0.2573 -0.46713 2015 1 16 57038 -0.0291 0.2592 -0.46806 2015 1 17 57039 -0.0306 0.2612 -0.46894 2015 1 18 57040 -0.0321 0.2632 -0.46977 2015 1 19 57041 -0.0336 0.2652 -0.47060 2015 1 20 57042 -0.0351 0.2672 -0.47150 2015 1 21 57043 -0.0365 0.2693 -0.47249 2015 1 22 57044 -0.0379 0.2714 -0.47364 2015 1 23 57045 -0.0392 0.2735 -0.47494 2015 1 24 57046 -0.0405 0.2756 -0.47644 2015 1 25 57047 -0.0418 0.2777 -0.47797 2015 1 26 57048 -0.0430 0.2799 -0.47947 2015 1 27 57049 -0.0442 0.2821 -0.48092 2015 1 28 57050 -0.0454 0.2843 -0.48230 2015 1 29 57051 -0.0465 0.2865 -0.48359 2015 1 30 57052 -0.0476 0.2888 -0.48480 2015 1 31 57053 -0.0486 0.2910 -0.48588 2015 2 1 57054 -0.0496 0.2933 -0.48693 2015 2 2 57055 -0.0506 0.2956 -0.48800 2015 2 3 57056 -0.0515 0.2979 -0.48915 2015 2 4 57057 -0.0524 0.3002 -0.49039 2015 2 5 57058 -0.0532 0.3026 -0.49172 2015 2 6 57059 -0.0540 0.3049 -0.49309 2015 2 7 57060 -0.0548 0.3073 -0.49451 2015 2 8 57061 -0.0555 0.3097 -0.49595 2015 2 9 57062 -0.0562 0.3121 -0.49741 2015 2 10 57063 -0.0568 0.3145 -0.49884 2015 2 11 57064 -0.0574 0.3169 -0.50024 2015 2 12 57065 -0.0580 0.3194 -0.50163 2015 2 13 57066 -0.0585 0.3218 -0.50299 2015 2 14 57067 -0.0590 0.3242 -0.50430 2015 2 15 57068 -0.0594 0.3267 -0.50566 2015 2 16 57069 -0.0598 0.3292 -0.50713 2015 2 17 57070 -0.0601 0.3317 -0.50868 2015 2 18 57071 -0.0604 0.3341 -0.51039 2015 2 19 57072 -0.0607 0.3366 -0.51229 2015 2 20 57073 -0.0609 0.3391 -0.51429 2015 2 21 57074 -0.0610 0.3416 -0.51636 2015 2 22 57075 -0.0612 0.3441 -0.51834 2015 2 23 57076 -0.0612 0.3466 -0.52020 2015 2 24 57077 -0.0613 0.3491 -0.52189 2015 2 25 57078 -0.0612 0.3516 -0.52341 2015 2 26 57079 -0.0612 0.3542 -0.52478 2015 2 27 57080 -0.0611 0.3567 -0.52607 2015 2 28 57081 -0.0609 0.3592 -0.52731 2015 3 1 57082 -0.0608 0.3617 -0.52850 2015 3 2 57083 -0.0605 0.3642 -0.52971 2015 3 3 57084 -0.0602 0.3667 -0.53094 2015 3 4 57085 -0.0599 0.3692 -0.53222 2015 3 5 57086 -0.0596 0.3717 -0.53363 2015 3 6 57087 -0.0591 0.3742 -0.53509 2015 3 7 57088 -0.0587 0.3767 -0.53657 2015 3 8 57089 -0.0582 0.3792 -0.53809 2015 3 9 57090 -0.0576 0.3817 -0.53964 2015 3 10 57091 -0.0571 0.3842 -0.54113 2015 3 11 57092 -0.0564 0.3867 -0.54253 2015 3 12 57093 -0.0557 0.3891 -0.54388 2015 3 13 57094 -0.0550 0.3916 -0.54520 2015 3 14 57095 -0.0543 0.3940 -0.54652 2015 3 15 57096 -0.0535 0.3964 -0.54791 2015 3 16 57097 -0.0526 0.3989 -0.54943 2015 3 17 57098 -0.0517 0.4013 -0.55112 2015 3 18 57099 -0.0508 0.4037 -0.55301 2015 3 19 57100 -0.0498 0.4061 -0.55512 2015 3 20 57101 -0.0488 0.4084 -0.55738 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) 56714 -81.11 0.30 -11.40 0.05 56715 -81.30 0.30 -11.34 0.05 56716 -81.40 0.30 -11.07 0.05 56717 -81.33 0.30 -10.83 0.08 56718 -81.08 0.30 -10.84 0.05 56719 -80.88 0.30 -11.07 0.05 56720 -80.88 0.30 -11.31 0.15 56721 -81.00 0.30 -11.46 0.15 56722 -81.00 0.30 -11.56 0.15 56723 -80.79 0.30 -11.69 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56714 0.277 0.119 0.049 0.050 56715 0.254 0.119 0.064 0.050 56716 0.228 0.119 0.075 0.050 56717 0.202 0.119 0.079 0.080 56718 0.200 0.119 0.084 0.050 56719 0.207 0.119 0.084 0.050 56720 0.227 0.119 0.082 0.150 56721 0.254 0.119 0.061 0.150 56722 0.284 0.119 0.036 0.150 56723 0.333 0.119 0.014 0.150 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).