********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 22 May 2014 Vol. XXVII No. 021 ______________________________________________________________________ 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 *********************************************************************** * As of Bulletin A Vol. XXVII, No. 021, on 22 May 2014, we have * * incorporated the new GSFC VLBI solutions gsf2014a.eops and * * gsf2014a.eopi. The effect appears to be less than 0.1 mas in * * polar motion and 10 us in UT1-UTC. * * * * 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 16 56793 0.10276 .00009 0.44803 .00009 -0.266433 0.000007 14 5 17 56794 0.10395 .00009 0.44804 .00009 -0.267428 0.000009 14 5 18 56795 0.10490 .00009 0.44797 .00009 -0.268471 0.000014 14 5 19 56796 0.10589 .00009 0.44781 .00009 -0.269612 0.000013 14 5 20 56797 0.10725 .00009 0.44764 .00009 -0.270883 0.000013 14 5 21 56798 0.10901 .00009 0.44769 .00009 -0.272309 0.000013 14 5 22 56799 0.11085 .00009 0.44806 .00009 -0.273801 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 = 0.0952 - 0.0245 cos A + 0.0946 sin A + 0.0494 cos C + 0.0032 sin C y = 0.3535 + 0.0883 cos A + 0.0244 sin A + 0.0032 cos C - 0.0494 sin C UT1-UTC = -0.2428 - 0.00100 (MJD - 56807) - (UT2-UT1) where A = 2*pi*(MJD-56799)/365.25 and C = 2*pi*(MJD-56799)/435. TAI-UTC(MJD 56800) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56799)**0.80 S t = 0.00025 (MJD-56799)**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 23 56800 0.1127 0.4484 -0.27527 2014 5 24 56801 0.1144 0.4487 -0.27668 2014 5 25 56802 0.1162 0.4489 -0.27798 2014 5 26 56803 0.1179 0.4490 -0.27911 2014 5 27 56804 0.1195 0.4489 -0.28003 2014 5 28 56805 0.1213 0.4487 -0.28074 2014 5 29 56806 0.1231 0.4485 -0.28127 2014 5 30 56807 0.1249 0.4483 -0.28169 2014 5 31 56808 0.1267 0.4482 -0.28206 2014 6 1 56809 0.1285 0.4480 -0.28246 2014 6 2 56810 0.1303 0.4479 -0.28294 2014 6 3 56811 0.1322 0.4477 -0.28351 2014 6 4 56812 0.1340 0.4475 -0.28419 2014 6 5 56813 0.1359 0.4472 -0.28495 2014 6 6 56814 0.1378 0.4469 -0.28576 2014 6 7 56815 0.1397 0.4465 -0.28659 2014 6 8 56816 0.1416 0.4461 -0.28741 2014 6 9 56817 0.1435 0.4456 -0.28821 2014 6 10 56818 0.1453 0.4452 -0.28898 2014 6 11 56819 0.1472 0.4447 -0.28969 2014 6 12 56820 0.1491 0.4442 -0.29032 2014 6 13 56821 0.1510 0.4436 -0.29090 2014 6 14 56822 0.1528 0.4430 -0.29146 2014 6 15 56823 0.1547 0.4424 -0.29208 2014 6 16 56824 0.1566 0.4418 -0.29280 2014 6 17 56825 0.1584 0.4411 -0.29365 2014 6 18 56826 0.1603 0.4404 -0.29457 2014 6 19 56827 0.1621 0.4397 -0.29551 2014 6 20 56828 0.1640 0.4389 -0.29640 2014 6 21 56829 0.1658 0.4381 -0.29717 2014 6 22 56830 0.1676 0.4373 -0.29777 2014 6 23 56831 0.1694 0.4364 -0.29819 2014 6 24 56832 0.1712 0.4355 -0.29844 2014 6 25 56833 0.1730 0.4346 -0.29854 2014 6 26 56834 0.1747 0.4336 -0.29853 2014 6 27 56835 0.1765 0.4326 -0.29847 2014 6 28 56836 0.1782 0.4316 -0.29838 2014 6 29 56837 0.1799 0.4306 -0.29831 2014 6 30 56838 0.1817 0.4295 -0.29827 2014 7 1 56839 0.1833 0.4284 -0.29828 2014 7 2 56840 0.1850 0.4273 -0.29837 2014 7 3 56841 0.1867 0.4261 -0.29852 2014 7 4 56842 0.1883 0.4249 -0.29870 2014 7 5 56843 0.1899 0.4237 -0.29890 2014 7 6 56844 0.1915 0.4225 -0.29909 2014 7 7 56845 0.1931 0.4212 -0.29922 2014 7 8 56846 0.1946 0.4199 -0.29930 2014 7 9 56847 0.1962 0.4186 -0.29932 2014 7 10 56848 0.1977 0.4173 -0.29930 2014 7 11 56849 0.1992 0.4159 -0.29927 2014 7 12 56850 0.2006 0.4145 -0.29929 2014 7 13 56851 0.2021 0.4131 -0.29944 2014 7 14 56852 0.2035 0.4117 -0.29975 2014 7 15 56853 0.2049 0.4102 -0.30020 2014 7 16 56854 0.2062 0.4087 -0.30074 2014 7 17 56855 0.2076 0.4072 -0.30128 2014 7 18 56856 0.2089 0.4057 -0.30175 2014 7 19 56857 0.2102 0.4041 -0.30208 2014 7 20 56858 0.2114 0.4026 -0.30226 2014 7 21 56859 0.2127 0.4010 -0.30229 2014 7 22 56860 0.2139 0.3993 -0.30217 2014 7 23 56861 0.2151 0.3977 -0.30195 2014 7 24 56862 0.2162 0.3960 -0.30167 2014 7 25 56863 0.2173 0.3944 -0.30137 2014 7 26 56864 0.2184 0.3927 -0.30110 2014 7 27 56865 0.2195 0.3910 -0.30087 2014 7 28 56866 0.2205 0.3892 -0.30072 2014 7 29 56867 0.2215 0.3875 -0.30066 2014 7 30 56868 0.2225 0.3857 -0.30068 2014 7 31 56869 0.2234 0.3839 -0.30077 2014 8 1 56870 0.2243 0.3821 -0.30091 2014 8 2 56871 0.2252 0.3803 -0.30108 2014 8 3 56872 0.2260 0.3785 -0.30123 2014 8 4 56873 0.2269 0.3766 -0.30136 2014 8 5 56874 0.2276 0.3747 -0.30145 2014 8 6 56875 0.2284 0.3729 -0.30151 2014 8 7 56876 0.2291 0.3710 -0.30156 2014 8 8 56877 0.2298 0.3691 -0.30166 2014 8 9 56878 0.2304 0.3672 -0.30187 2014 8 10 56879 0.2310 0.3652 -0.30224 2014 8 11 56880 0.2316 0.3633 -0.30280 2014 8 12 56881 0.2321 0.3613 -0.30352 2014 8 13 56882 0.2326 0.3594 -0.30431 2014 8 14 56883 0.2331 0.3574 -0.30509 2014 8 15 56884 0.2335 0.3554 -0.30578 2014 8 16 56885 0.2339 0.3534 -0.30632 2014 8 17 56886 0.2343 0.3514 -0.30670 2014 8 18 56887 0.2346 0.3494 -0.30694 2014 8 19 56888 0.2349 0.3474 -0.30707 2014 8 20 56889 0.2352 0.3454 -0.30713 2014 8 21 56890 0.2354 0.3434 -0.30717 2014 8 22 56891 0.2356 0.3414 -0.30724 2014 8 23 56892 0.2357 0.3393 -0.30738 2014 8 24 56893 0.2358 0.3373 -0.30759 2014 8 25 56894 0.2359 0.3352 -0.30790 2014 8 26 56895 0.2359 0.3332 -0.30831 2014 8 27 56896 0.2359 0.3312 -0.30880 2014 8 28 56897 0.2359 0.3291 -0.30935 2014 8 29 56898 0.2358 0.3271 -0.30993 2014 8 30 56899 0.2357 0.3250 -0.31052 2014 8 31 56900 0.2356 0.3230 -0.31107 2014 9 1 56901 0.2354 0.3209 -0.31159 2014 9 2 56902 0.2351 0.3189 -0.31207 2014 9 3 56903 0.2349 0.3168 -0.31254 2014 9 4 56904 0.2346 0.3148 -0.31304 2014 9 5 56905 0.2342 0.3127 -0.31363 2014 9 6 56906 0.2339 0.3107 -0.31437 2014 9 7 56907 0.2334 0.3087 -0.31531 2014 9 8 56908 0.2330 0.3066 -0.31644 2014 9 9 56909 0.2325 0.3046 -0.31771 2014 9 10 56910 0.2320 0.3026 -0.31903 2014 9 11 56911 0.2314 0.3006 -0.32031 2014 9 12 56912 0.2308 0.2986 -0.32146 2014 9 13 56913 0.2302 0.2966 -0.32245 2014 9 14 56914 0.2295 0.2946 -0.32327 2014 9 15 56915 0.2288 0.2926 -0.32396 2014 9 16 56916 0.2281 0.2906 -0.32456 2014 9 17 56917 0.2273 0.2887 -0.32512 2014 9 18 56918 0.2265 0.2867 -0.32568 2014 9 19 56919 0.2256 0.2848 -0.32630 2014 9 20 56920 0.2247 0.2828 -0.32699 2014 9 21 56921 0.2238 0.2809 -0.32777 2014 9 22 56922 0.2228 0.2790 -0.32865 2014 9 23 56923 0.2219 0.2771 -0.32962 2014 9 24 56924 0.2208 0.2752 -0.33065 2014 9 25 56925 0.2198 0.2734 -0.33171 2014 9 26 56926 0.2187 0.2715 -0.33279 2014 9 27 56927 0.2175 0.2697 -0.33383 2014 9 28 56928 0.2164 0.2679 -0.33483 2014 9 29 56929 0.2152 0.2661 -0.33577 2014 9 30 56930 0.2139 0.2643 -0.33667 2014 10 1 56931 0.2127 0.2625 -0.33757 2014 10 2 56932 0.2114 0.2608 -0.33853 2014 10 3 56933 0.2100 0.2591 -0.33960 2014 10 4 56934 0.2087 0.2573 -0.34084 2014 10 5 56935 0.2073 0.2557 -0.34225 2014 10 6 56936 0.2058 0.2540 -0.34383 2014 10 7 56937 0.2044 0.2523 -0.34551 2014 10 8 56938 0.2029 0.2507 -0.34720 2014 10 9 56939 0.2014 0.2491 -0.34881 2014 10 10 56940 0.1998 0.2475 -0.35028 2014 10 11 56941 0.1982 0.2460 -0.35158 2014 10 12 56942 0.1966 0.2444 -0.35272 2014 10 13 56943 0.1950 0.2429 -0.35374 2014 10 14 56944 0.1933 0.2414 -0.35469 2014 10 15 56945 0.1916 0.2399 -0.35562 2014 10 16 56946 0.1899 0.2385 -0.35657 2014 10 17 56947 0.1881 0.2371 -0.35757 2014 10 18 56948 0.1863 0.2357 -0.35864 2014 10 19 56949 0.1845 0.2343 -0.35981 2014 10 20 56950 0.1827 0.2330 -0.36105 2014 10 21 56951 0.1808 0.2317 -0.36235 2014 10 22 56952 0.1790 0.2304 -0.36369 2014 10 23 56953 0.1771 0.2292 -0.36505 2014 10 24 56954 0.1751 0.2279 -0.36638 2014 10 25 56955 0.1732 0.2267 -0.36766 2014 10 26 56956 0.1712 0.2256 -0.36887 2014 10 27 56957 0.1692 0.2244 -0.37002 2014 10 28 56958 0.1672 0.2233 -0.37114 2014 10 29 56959 0.1651 0.2223 -0.37228 2014 10 30 56960 0.1631 0.2212 -0.37349 2014 10 31 56961 0.1610 0.2202 -0.37483 2014 11 1 56962 0.1589 0.2192 -0.37631 2014 11 2 56963 0.1568 0.2183 -0.37793 2014 11 3 56964 0.1546 0.2174 -0.37966 2014 11 4 56965 0.1525 0.2165 -0.38143 2014 11 5 56966 0.1503 0.2156 -0.38315 2014 11 6 56967 0.1481 0.2148 -0.38477 2014 11 7 56968 0.1459 0.2140 -0.38623 2014 11 8 56969 0.1437 0.2133 -0.38753 2014 11 9 56970 0.1414 0.2125 -0.38869 2014 11 10 56971 0.1392 0.2118 -0.38976 2014 11 11 56972 0.1369 0.2112 -0.39078 2014 11 12 56973 0.1346 0.2106 -0.39179 2014 11 13 56974 0.1323 0.2100 -0.39284 2014 11 14 56975 0.1300 0.2095 -0.39394 2014 11 15 56976 0.1277 0.2089 -0.39511 2014 11 16 56977 0.1253 0.2085 -0.39635 2014 11 17 56978 0.1230 0.2080 -0.39766 2014 11 18 56979 0.1207 0.2076 -0.39900 2014 11 19 56980 0.1183 0.2073 -0.40036 2014 11 20 56981 0.1159 0.2069 -0.40171 2014 11 21 56982 0.1136 0.2066 -0.40302 2014 11 22 56983 0.1112 0.2064 -0.40426 2014 11 23 56984 0.1088 0.2061 -0.40545 2014 11 24 56985 0.1064 0.2060 -0.40660 2014 11 25 56986 0.1040 0.2058 -0.40775 2014 11 26 56987 0.1016 0.2057 -0.40897 2014 11 27 56988 0.0992 0.2056 -0.41029 2014 11 28 56989 0.0968 0.2056 -0.41175 2014 11 29 56990 0.0944 0.2056 -0.41335 2014 11 30 56991 0.0920 0.2056 -0.41505 2014 12 1 56992 0.0895 0.2057 -0.41678 2014 12 2 56993 0.0871 0.2058 -0.41848 2014 12 3 56994 0.0847 0.2060 -0.42007 2014 12 4 56995 0.0823 0.2061 -0.42151 2014 12 5 56996 0.0799 0.2064 -0.42276 2014 12 6 56997 0.0775 0.2066 -0.42386 2014 12 7 56998 0.0751 0.2069 -0.42483 2014 12 8 56999 0.0727 0.2073 -0.42572 2014 12 9 57000 0.0703 0.2076 -0.42659 2014 12 10 57001 0.0679 0.2080 -0.42747 2014 12 11 57002 0.0655 0.2085 -0.42838 2014 12 12 57003 0.0631 0.2090 -0.42933 2014 12 13 57004 0.0607 0.2095 -0.43033 2014 12 14 57005 0.0584 0.2101 -0.43136 2014 12 15 57006 0.0560 0.2107 -0.43240 2014 12 16 57007 0.0537 0.2113 -0.43344 2014 12 17 57008 0.0513 0.2120 -0.43444 2014 12 18 57009 0.0490 0.2127 -0.43539 2014 12 19 57010 0.0467 0.2134 -0.43629 2014 12 20 57011 0.0444 0.2142 -0.43713 2014 12 21 57012 0.0421 0.2150 -0.43795 2014 12 22 57013 0.0398 0.2159 -0.43877 2014 12 23 57014 0.0376 0.2168 -0.43965 2014 12 24 57015 0.0353 0.2177 -0.44060 2014 12 25 57016 0.0331 0.2186 -0.44166 2014 12 26 57017 0.0309 0.2196 -0.44286 2014 12 27 57018 0.0286 0.2207 -0.44420 2014 12 28 57019 0.0265 0.2217 -0.44564 2014 12 29 57020 0.0243 0.2228 -0.44708 2014 12 30 57021 0.0221 0.2240 -0.44844 2014 12 31 57022 0.0200 0.2251 -0.44964 2015 1 1 57023 0.0179 0.2263 -0.45067 2015 1 2 57024 0.0158 0.2276 -0.45155 2015 1 3 57025 0.0137 0.2288 -0.45225 2015 1 4 57026 0.0117 0.2301 -0.45279 2015 1 5 57027 0.0097 0.2315 -0.45330 2015 1 6 57028 0.0077 0.2328 -0.45382 2015 1 7 57029 0.0057 0.2342 -0.45439 2015 1 8 57030 0.0037 0.2356 -0.45507 2015 1 9 57031 0.0018 0.2371 -0.45585 2015 1 10 57032 -0.0001 0.2386 -0.45672 2015 1 11 57033 -0.0020 0.2401 -0.45760 2015 1 12 57034 -0.0039 0.2417 -0.45853 2015 1 13 57035 -0.0057 0.2433 -0.45946 2015 1 14 57036 -0.0075 0.2449 -0.46037 2015 1 15 57037 -0.0093 0.2465 -0.46125 2015 1 16 57038 -0.0110 0.2482 -0.46216 2015 1 17 57039 -0.0127 0.2499 -0.46304 2015 1 18 57040 -0.0144 0.2516 -0.46395 2015 1 19 57041 -0.0161 0.2533 -0.46489 2015 1 20 57042 -0.0177 0.2551 -0.46587 2015 1 21 57043 -0.0193 0.2569 -0.46696 2015 1 22 57044 -0.0209 0.2588 -0.46820 2015 1 23 57045 -0.0224 0.2606 -0.46955 2015 1 24 57046 -0.0239 0.2625 -0.47096 2015 1 25 57047 -0.0254 0.2644 -0.47241 2015 1 26 57048 -0.0268 0.2663 -0.47376 2015 1 27 57049 -0.0282 0.2683 -0.47500 2015 1 28 57050 -0.0296 0.2703 -0.47611 2015 1 29 57051 -0.0309 0.2723 -0.47708 2015 1 30 57052 -0.0322 0.2743 -0.47798 2015 1 31 57053 -0.0335 0.2763 -0.47889 2015 2 1 57054 -0.0347 0.2784 -0.47979 2015 2 2 57055 -0.0359 0.2805 -0.48072 2015 2 3 57056 -0.0371 0.2826 -0.48162 2015 2 4 57057 -0.0382 0.2847 -0.48253 2015 2 5 57058 -0.0393 0.2868 -0.48351 2015 2 6 57059 -0.0403 0.2890 -0.48455 2015 2 7 57060 -0.0414 0.2912 -0.48572 2015 2 8 57061 -0.0423 0.2934 -0.48694 2015 2 9 57062 -0.0433 0.2956 -0.48815 2015 2 10 57063 -0.0441 0.2978 -0.48931 2015 2 11 57064 -0.0450 0.3000 -0.49043 2015 2 12 57065 -0.0458 0.3023 -0.49151 2015 2 13 57066 -0.0466 0.3046 -0.49253 2015 2 14 57067 -0.0473 0.3069 -0.49356 2015 2 15 57068 -0.0480 0.3092 -0.49463 2015 2 16 57069 -0.0487 0.3115 -0.49580 2015 2 17 57070 -0.0493 0.3138 -0.49710 2015 2 18 57071 -0.0499 0.3161 -0.49859 2015 2 19 57072 -0.0504 0.3185 -0.50031 2015 2 20 57073 -0.0509 0.3208 -0.50218 2015 2 21 57074 -0.0513 0.3232 -0.50411 2015 2 22 57075 -0.0517 0.3256 -0.50596 2015 2 23 57076 -0.0521 0.3279 -0.50768 2015 2 24 57077 -0.0524 0.3303 -0.50925 2015 2 25 57078 -0.0527 0.3327 -0.51067 2015 2 26 57079 -0.0530 0.3351 -0.51193 2015 2 27 57080 -0.0532 0.3375 -0.51313 2015 2 28 57081 -0.0533 0.3399 -0.51430 2015 3 1 57082 -0.0534 0.3423 -0.51546 2015 3 2 57083 -0.0535 0.3448 -0.51664 2015 3 3 57084 -0.0535 0.3472 -0.51789 2015 3 4 57085 -0.0535 0.3496 -0.51921 2015 3 5 57086 -0.0534 0.3520 -0.52056 2015 3 6 57087 -0.0533 0.3544 -0.52195 2015 3 7 57088 -0.0532 0.3569 -0.52339 2015 3 8 57089 -0.0530 0.3593 -0.52489 2015 3 9 57090 -0.0528 0.3617 -0.52644 2015 3 10 57091 -0.0525 0.3641 -0.52799 2015 3 11 57092 -0.0522 0.3665 -0.52953 2015 3 12 57093 -0.0518 0.3690 -0.53101 2015 3 13 57094 -0.0514 0.3714 -0.53242 2015 3 14 57095 -0.0510 0.3738 -0.53380 2015 3 15 57096 -0.0505 0.3762 -0.53521 2015 3 16 57097 -0.0500 0.3786 -0.53671 2015 3 17 57098 -0.0494 0.3810 -0.53836 2015 3 18 57099 -0.0488 0.3833 -0.54025 2015 3 19 57100 -0.0481 0.3857 -0.54234 2015 3 20 57101 -0.0474 0.3881 -0.54456 2015 3 21 57102 -0.0467 0.3904 -0.54680 2015 3 22 57103 -0.0459 0.3928 -0.54899 2015 3 23 57104 -0.0451 0.3951 -0.55107 2015 3 24 57105 -0.0442 0.3974 -0.55301 2015 3 25 57106 -0.0433 0.3997 -0.55475 2015 3 26 57107 -0.0423 0.4020 -0.55636 2015 3 27 57108 -0.0414 0.4043 -0.55789 2015 3 28 57109 -0.0403 0.4066 -0.55940 2015 3 29 57110 -0.0392 0.4088 -0.56093 2015 3 30 57111 -0.0381 0.4111 -0.56247 2015 3 31 57112 -0.0370 0.4133 -0.56406 2015 4 1 57113 -0.0358 0.4155 -0.56570 2015 4 2 57114 -0.0346 0.4177 -0.56736 2015 4 3 57115 -0.0333 0.4199 -0.56906 2015 4 4 57116 -0.0320 0.4221 -0.57074 2015 4 5 57117 -0.0306 0.4242 -0.57241 2015 4 6 57118 -0.0292 0.4263 -0.57403 2015 4 7 57119 -0.0278 0.4284 -0.57560 2015 4 8 57120 -0.0264 0.4305 -0.57714 2015 4 9 57121 -0.0249 0.4326 -0.57865 2015 4 10 57122 -0.0233 0.4346 -0.58015 2015 4 11 57123 -0.0218 0.4366 -0.58170 2015 4 12 57124 -0.0201 0.4386 -0.58325 2015 4 13 57125 -0.0185 0.4406 -0.58493 2015 4 14 57126 -0.0168 0.4425 -0.58673 2015 4 15 57127 -0.0151 0.4444 -0.58865 2015 4 16 57128 -0.0134 0.4463 -0.59072 2015 4 17 57129 -0.0116 0.4482 -0.59286 2015 4 18 57130 -0.0098 0.4500 -0.59500 2015 4 19 57131 -0.0079 0.4519 -0.59698 2015 4 20 57132 -0.0060 0.4536 -0.59876 2015 4 21 57133 -0.0041 0.4554 -0.60032 2015 4 22 57134 -0.0022 0.4571 -0.60166 2015 4 23 57135 -0.0002 0.4588 -0.60286 2015 4 24 57136 0.0018 0.4605 -0.60397 2015 4 25 57137 0.0039 0.4622 -0.60505 2015 4 26 57138 0.0059 0.4638 -0.60615 2015 4 27 57139 0.0080 0.4654 -0.60731 2015 4 28 57140 0.0101 0.4669 -0.60855 2015 4 29 57141 0.0123 0.4684 -0.60989 2015 4 30 57142 0.0145 0.4699 -0.61131 2015 5 1 57143 0.0167 0.4714 -0.61279 2015 5 2 57144 0.0189 0.4728 -0.61430 2015 5 3 57145 0.0212 0.4742 -0.61581 2015 5 4 57146 0.0235 0.4756 -0.61731 2015 5 5 57147 0.0258 0.4769 -0.61877 2015 5 6 57148 0.0281 0.4782 -0.62014 2015 5 7 57149 0.0305 0.4794 -0.62145 2015 5 8 57150 0.0329 0.4806 -0.62271 2015 5 9 57151 0.0353 0.4818 -0.62403 2015 5 10 57152 0.0377 0.4830 -0.62540 2015 5 11 57153 0.0401 0.4841 -0.62684 2015 5 12 57154 0.0426 0.4852 -0.62842 2015 5 13 57155 0.0451 0.4862 -0.63007 2015 5 14 57156 0.0476 0.4872 -0.63179 2015 5 15 57157 0.0501 0.4882 -0.63352 2015 5 16 57158 0.0526 0.4891 -0.63515 2015 5 17 57159 0.0552 0.4900 -0.63658 2015 5 18 57160 0.0578 0.4908 -0.63784 2015 5 19 57161 0.0604 0.4916 -0.63891 2015 5 20 57162 0.0630 0.4924 -0.63977 2015 5 21 57163 0.0656 0.4931 -0.64051 2015 5 22 57164 0.0682 0.4938 -0.64124 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) 56773 -78.78 0.30 -13.45 0.05 56774 -78.94 0.30 -13.35 0.07 56775 -79.16 0.30 -13.45 0.08 56776 -79.25 0.30 -13.68 0.08 56777 -79.12 0.30 -13.84 0.08 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56773 0.215 0.119 -0.119 0.050 56774 0.214 0.119 -0.094 0.070 56775 0.228 0.119 -0.063 0.080 56776 0.259 0.119 -0.054 0.080 56777 0.306 0.119 -0.052 0.080 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).