********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 April 2014 Vol. XXVII No. 016 ______________________________________________________________________ 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 11 56758 0.05328 .00009 0.42978 .00009 -0.217663 0.000009 14 4 12 56759 0.05419 .00009 0.43044 .00009 -0.219066 0.000011 14 4 13 56760 0.05497 .00009 0.43079 .00009 -0.220487 0.000010 14 4 14 56761 0.05582 .00009 0.43119 .00009 -0.221962 0.000008 14 4 15 56762 0.05665 .00009 0.43196 .00010 -0.223404 0.000008 14 4 16 56763 0.05738 .00009 0.43269 .00009 -0.224708 0.000009 14 4 17 56764 0.05827 .00009 0.43333 .00009 -0.225920 0.000008 _______________________________________________________________________ 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 = 0.0989 - 0.0737 cos A + 0.0683 sin A + 0.0432 cos C + 0.0231 sin C y = 0.3511 + 0.0624 cos A + 0.0697 sin A + 0.0231 cos C - 0.0432 sin C UT1-UTC = -0.1994 - 0.00100 (MJD - 56772) - (UT2-UT1) where A = 2*pi*(MJD-56764)/365.25 and C = 2*pi*(MJD-56764)/435. TAI-UTC(MJD 56765) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56764)**0.80 S t = 0.00025 (MJD-56764)**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 4 18 56765 0.0594 0.4339 -0.22714 2014 4 19 56766 0.0606 0.4347 -0.22837 2014 4 20 56767 0.0619 0.4353 -0.22963 2014 4 21 56768 0.0632 0.4360 -0.23097 2014 4 22 56769 0.0646 0.4366 -0.23242 2014 4 23 56770 0.0660 0.4372 -0.23400 2014 4 24 56771 0.0675 0.4378 -0.23571 2014 4 25 56772 0.0690 0.4384 -0.23752 2014 4 26 56773 0.0705 0.4389 -0.23937 2014 4 27 56774 0.0720 0.4395 -0.24118 2014 4 28 56775 0.0735 0.4401 -0.24285 2014 4 29 56776 0.0751 0.4406 -0.24432 2014 4 30 56777 0.0767 0.4412 -0.24553 2014 5 1 56778 0.0783 0.4417 -0.24655 2014 5 2 56779 0.0800 0.4422 -0.24745 2014 5 3 56780 0.0817 0.4427 -0.24826 2014 5 4 56781 0.0834 0.4431 -0.24905 2014 5 5 56782 0.0851 0.4435 -0.24987 2014 5 6 56783 0.0869 0.4439 -0.25074 2014 5 7 56784 0.0887 0.4443 -0.25166 2014 5 8 56785 0.0904 0.4446 -0.25264 2014 5 9 56786 0.0922 0.4449 -0.25368 2014 5 10 56787 0.0941 0.4452 -0.25477 2014 5 11 56788 0.0959 0.4455 -0.25591 2014 5 12 56789 0.0977 0.4457 -0.25704 2014 5 13 56790 0.0996 0.4459 -0.25812 2014 5 14 56791 0.1015 0.4461 -0.25910 2014 5 15 56792 0.1033 0.4462 -0.25996 2014 5 16 56793 0.1052 0.4464 -0.26073 2014 5 17 56794 0.1071 0.4464 -0.26145 2014 5 18 56795 0.1090 0.4465 -0.26218 2014 5 19 56796 0.1110 0.4465 -0.26299 2014 5 20 56797 0.1129 0.4465 -0.26390 2014 5 21 56798 0.1148 0.4465 -0.26493 2014 5 22 56799 0.1167 0.4464 -0.26606 2014 5 23 56800 0.1187 0.4464 -0.26723 2014 5 24 56801 0.1206 0.4462 -0.26838 2014 5 25 56802 0.1226 0.4461 -0.26945 2014 5 26 56803 0.1245 0.4459 -0.27038 2014 5 27 56804 0.1265 0.4457 -0.27116 2014 5 28 56805 0.1284 0.4455 -0.27177 2014 5 29 56806 0.1304 0.4452 -0.27225 2014 5 30 56807 0.1323 0.4449 -0.27263 2014 5 31 56808 0.1343 0.4445 -0.27296 2014 6 1 56809 0.1362 0.4442 -0.27328 2014 6 2 56810 0.1381 0.4438 -0.27360 2014 6 3 56811 0.1401 0.4433 -0.27397 2014 6 4 56812 0.1420 0.4429 -0.27440 2014 6 5 56813 0.1440 0.4424 -0.27489 2014 6 6 56814 0.1459 0.4419 -0.27544 2014 6 7 56815 0.1478 0.4413 -0.27603 2014 6 8 56816 0.1497 0.4407 -0.27663 2014 6 9 56817 0.1516 0.4401 -0.27722 2014 6 10 56818 0.1535 0.4395 -0.27776 2014 6 11 56819 0.1554 0.4388 -0.27824 2014 6 12 56820 0.1573 0.4381 -0.27864 2014 6 13 56821 0.1592 0.4374 -0.27900 2014 6 14 56822 0.1611 0.4366 -0.27934 2014 6 15 56823 0.1629 0.4358 -0.27974 2014 6 16 56824 0.1647 0.4350 -0.28024 2014 6 17 56825 0.1666 0.4341 -0.28085 2014 6 18 56826 0.1684 0.4333 -0.28155 2014 6 19 56827 0.1702 0.4323 -0.28229 2014 6 20 56828 0.1720 0.4314 -0.28299 2014 6 21 56829 0.1738 0.4304 -0.28361 2014 6 22 56830 0.1755 0.4294 -0.28410 2014 6 23 56831 0.1773 0.4284 -0.28444 2014 6 24 56832 0.1790 0.4274 -0.28463 2014 6 25 56833 0.1807 0.4263 -0.28469 2014 6 26 56834 0.1824 0.4252 -0.28466 2014 6 27 56835 0.1841 0.4240 -0.28458 2014 6 28 56836 0.1858 0.4228 -0.28447 2014 6 29 56837 0.1874 0.4217 -0.28440 2014 6 30 56838 0.1890 0.4204 -0.28437 2014 7 1 56839 0.1906 0.4192 -0.28441 2014 7 2 56840 0.1922 0.4179 -0.28452 2014 7 3 56841 0.1938 0.4166 -0.28469 2014 7 4 56842 0.1953 0.4153 -0.28492 2014 7 5 56843 0.1969 0.4139 -0.28518 2014 7 6 56844 0.1984 0.4126 -0.28543 2014 7 7 56845 0.1998 0.4112 -0.28566 2014 7 8 56846 0.2013 0.4097 -0.28584 2014 7 9 56847 0.2027 0.4083 -0.28595 2014 7 10 56848 0.2041 0.4068 -0.28602 2014 7 11 56849 0.2055 0.4053 -0.28608 2014 7 12 56850 0.2069 0.4038 -0.28619 2014 7 13 56851 0.2082 0.4023 -0.28642 2014 7 14 56852 0.2095 0.4007 -0.28679 2014 7 15 56853 0.2108 0.3991 -0.28730 2014 7 16 56854 0.2120 0.3975 -0.28788 2014 7 17 56855 0.2132 0.3959 -0.28847 2014 7 18 56856 0.2144 0.3942 -0.28897 2014 7 19 56857 0.2156 0.3926 -0.28934 2014 7 20 56858 0.2167 0.3909 -0.28955 2014 7 21 56859 0.2178 0.3892 -0.28960 2014 7 22 56860 0.2189 0.3874 -0.28950 2014 7 23 56861 0.2200 0.3857 -0.28931 2014 7 24 56862 0.2210 0.3839 -0.28906 2014 7 25 56863 0.2220 0.3821 -0.28880 2014 7 26 56864 0.2229 0.3803 -0.28857 2014 7 27 56865 0.2239 0.3785 -0.28839 2014 7 28 56866 0.2248 0.3767 -0.28829 2014 7 29 56867 0.2256 0.3749 -0.28827 2014 7 30 56868 0.2265 0.3730 -0.28834 2014 7 31 56869 0.2273 0.3711 -0.28847 2014 8 1 56870 0.2280 0.3692 -0.28865 2014 8 2 56871 0.2287 0.3673 -0.28884 2014 8 3 56872 0.2294 0.3654 -0.28903 2014 8 4 56873 0.2301 0.3635 -0.28916 2014 8 5 56874 0.2307 0.3615 -0.28926 2014 8 6 56875 0.2313 0.3596 -0.28931 2014 8 7 56876 0.2319 0.3576 -0.28936 2014 8 8 56877 0.2324 0.3556 -0.28946 2014 8 9 56878 0.2329 0.3537 -0.28967 2014 8 10 56879 0.2334 0.3517 -0.29004 2014 8 11 56880 0.2338 0.3497 -0.29059 2014 8 12 56881 0.2342 0.3476 -0.29130 2014 8 13 56882 0.2345 0.3456 -0.29209 2014 8 14 56883 0.2348 0.3436 -0.29286 2014 8 15 56884 0.2351 0.3416 -0.29352 2014 8 16 56885 0.2353 0.3395 -0.29404 2014 8 17 56886 0.2356 0.3375 -0.29438 2014 8 18 56887 0.2357 0.3354 -0.29459 2014 8 19 56888 0.2358 0.3334 -0.29468 2014 8 20 56889 0.2359 0.3313 -0.29471 2014 8 21 56890 0.2360 0.3293 -0.29472 2014 8 22 56891 0.2360 0.3272 -0.29475 2014 8 23 56892 0.2360 0.3251 -0.29485 2014 8 24 56893 0.2359 0.3231 -0.29504 2014 8 25 56894 0.2358 0.3210 -0.29532 2014 8 26 56895 0.2357 0.3189 -0.29570 2014 8 27 56896 0.2355 0.3169 -0.29616 2014 8 28 56897 0.2353 0.3148 -0.29668 2014 8 29 56898 0.2351 0.3127 -0.29724 2014 8 30 56899 0.2348 0.3107 -0.29779 2014 8 31 56900 0.2345 0.3086 -0.29832 2014 9 1 56901 0.2341 0.3066 -0.29881 2014 9 2 56902 0.2337 0.3045 -0.29926 2014 9 3 56903 0.2333 0.3025 -0.29970 2014 9 4 56904 0.2328 0.3004 -0.30018 2014 9 5 56905 0.2323 0.2984 -0.30075 2014 9 6 56906 0.2318 0.2963 -0.30147 2014 9 7 56907 0.2312 0.2943 -0.30238 2014 9 8 56908 0.2306 0.2923 -0.30349 2014 9 9 56909 0.2299 0.2903 -0.30474 2014 9 10 56910 0.2292 0.2883 -0.30606 2014 9 11 56911 0.2285 0.2863 -0.30732 2014 9 12 56912 0.2277 0.2843 -0.30847 2014 9 13 56913 0.2269 0.2823 -0.30945 2014 9 14 56914 0.2261 0.2804 -0.31027 2014 9 15 56915 0.2252 0.2784 -0.31095 2014 9 16 56916 0.2243 0.2765 -0.31156 2014 9 17 56917 0.2233 0.2746 -0.31212 2014 9 18 56918 0.2223 0.2726 -0.31269 2014 9 19 56919 0.2213 0.2707 -0.31332 2014 9 20 56920 0.2203 0.2689 -0.31402 2014 9 21 56921 0.2192 0.2670 -0.31481 2014 9 22 56922 0.2180 0.2651 -0.31570 2014 9 23 56923 0.2169 0.2633 -0.31668 2014 9 24 56924 0.2157 0.2615 -0.31773 2014 9 25 56925 0.2145 0.2597 -0.31881 2014 9 26 56926 0.2132 0.2579 -0.31990 2014 9 27 56927 0.2119 0.2561 -0.32096 2014 9 28 56928 0.2106 0.2544 -0.32197 2014 9 29 56929 0.2092 0.2526 -0.32293 2014 9 30 56930 0.2078 0.2509 -0.32385 2014 10 1 56931 0.2064 0.2492 -0.32478 2014 10 2 56932 0.2049 0.2476 -0.32576 2014 10 3 56933 0.2034 0.2459 -0.32687 2014 10 4 56934 0.2019 0.2443 -0.32813 2014 10 5 56935 0.2003 0.2427 -0.32958 2014 10 6 56936 0.1987 0.2411 -0.33119 2014 10 7 56937 0.1971 0.2395 -0.33291 2014 10 8 56938 0.1955 0.2380 -0.33464 2014 10 9 56939 0.1938 0.2365 -0.33630 2014 10 10 56940 0.1921 0.2350 -0.33781 2014 10 11 56941 0.1904 0.2335 -0.33916 2014 10 12 56942 0.1886 0.2321 -0.34034 2014 10 13 56943 0.1868 0.2307 -0.34142 2014 10 14 56944 0.1850 0.2293 -0.34242 2014 10 15 56945 0.1832 0.2280 -0.34340 2014 10 16 56946 0.1813 0.2266 -0.34441 2014 10 17 56947 0.1794 0.2253 -0.34546 2014 10 18 56948 0.1775 0.2241 -0.34659 2014 10 19 56949 0.1755 0.2228 -0.34780 2014 10 20 56950 0.1735 0.2216 -0.34909 2014 10 21 56951 0.1716 0.2204 -0.35043 2014 10 22 56952 0.1695 0.2193 -0.35180 2014 10 23 56953 0.1675 0.2181 -0.35317 2014 10 24 56954 0.1654 0.2170 -0.35451 2014 10 25 56955 0.1633 0.2160 -0.35577 2014 10 26 56956 0.1612 0.2150 -0.35696 2014 10 27 56957 0.1591 0.2140 -0.35807 2014 10 28 56958 0.1570 0.2130 -0.35915 2014 10 29 56959 0.1548 0.2121 -0.36023 2014 10 30 56960 0.1526 0.2112 -0.36137 2014 10 31 56961 0.1504 0.2103 -0.36264 2014 11 1 56962 0.1482 0.2095 -0.36405 2014 11 2 56963 0.1459 0.2087 -0.36560 2014 11 3 56964 0.1437 0.2079 -0.36726 2014 11 4 56965 0.1414 0.2072 -0.36896 2014 11 5 56966 0.1391 0.2065 -0.37062 2014 11 6 56967 0.1368 0.2058 -0.37217 2014 11 7 56968 0.1345 0.2052 -0.37357 2014 11 8 56969 0.1322 0.2046 -0.37482 2014 11 9 56970 0.1298 0.2040 -0.37593 2014 11 10 56971 0.1275 0.2035 -0.37696 2014 11 11 56972 0.1251 0.2030 -0.37796 2014 11 12 56973 0.1227 0.2026 -0.37895 2014 11 13 56974 0.1203 0.2021 -0.37996 2014 11 14 56975 0.1179 0.2018 -0.38102 2014 11 15 56976 0.1155 0.2014 -0.38213 2014 11 16 56977 0.1131 0.2011 -0.38330 2014 11 17 56978 0.1107 0.2009 -0.38452 2014 11 18 56979 0.1082 0.2006 -0.38580 2014 11 19 56980 0.1058 0.2004 -0.38711 2014 11 20 56981 0.1034 0.2003 -0.38842 2014 11 21 56982 0.1009 0.2002 -0.38973 2014 11 22 56983 0.0985 0.2001 -0.39104 2014 11 23 56984 0.0960 0.2001 -0.39231 2014 11 24 56985 0.0935 0.2001 -0.39353 2014 11 25 56986 0.0911 0.2001 -0.39469 2014 11 26 56987 0.0886 0.2002 -0.39585 2014 11 27 56988 0.0861 0.2003 -0.39707 2014 11 28 56989 0.0837 0.2004 -0.39842 2014 11 29 56990 0.0812 0.2006 -0.39995 2014 11 30 56991 0.0787 0.2009 -0.40157 2014 12 1 56992 0.0763 0.2011 -0.40321 2014 12 2 56993 0.0738 0.2014 -0.40477 2014 12 3 56994 0.0714 0.2018 -0.40621 2014 12 4 56995 0.0689 0.2021 -0.40753 2014 12 5 56996 0.0664 0.2026 -0.40867 2014 12 6 56997 0.0640 0.2030 -0.40969 2014 12 7 56998 0.0616 0.2035 -0.41062 2014 12 8 56999 0.0591 0.2040 -0.41151 2014 12 9 57000 0.0567 0.2046 -0.41236 2014 12 10 57001 0.0543 0.2052 -0.41323 2014 12 11 57002 0.0519 0.2059 -0.41419 2014 12 12 57003 0.0495 0.2066 -0.41521 2014 12 13 57004 0.0471 0.2073 -0.41629 2014 12 14 57005 0.0447 0.2080 -0.41740 2014 12 15 57006 0.0423 0.2088 -0.41854 2014 12 16 57007 0.0400 0.2097 -0.41971 2014 12 17 57008 0.0376 0.2105 -0.42089 2014 12 18 57009 0.0353 0.2114 -0.42203 2014 12 19 57010 0.0330 0.2124 -0.42315 2014 12 20 57011 0.0307 0.2134 -0.42423 2014 12 21 57012 0.0284 0.2144 -0.42527 2014 12 22 57013 0.0261 0.2154 -0.42626 2014 12 23 57014 0.0239 0.2165 -0.42732 2014 12 24 57015 0.0216 0.2176 -0.42845 2014 12 25 57016 0.0194 0.2188 -0.42965 2014 12 26 57017 0.0172 0.2200 -0.43098 2014 12 27 57018 0.0150 0.2212 -0.43240 2014 12 28 57019 0.0129 0.2225 -0.43389 2014 12 29 57020 0.0107 0.2238 -0.43542 2014 12 30 57021 0.0086 0.2251 -0.43687 2014 12 31 57022 0.0065 0.2265 -0.43823 2015 1 1 57023 0.0044 0.2279 -0.43943 2015 1 2 57024 0.0024 0.2293 -0.44046 2015 1 3 57025 0.0003 0.2308 -0.44134 2015 1 4 57026 -0.0017 0.2323 -0.44214 2015 1 5 57027 -0.0036 0.2338 -0.44290 2015 1 6 57028 -0.0056 0.2354 -0.44367 2015 1 7 57029 -0.0075 0.2370 -0.44452 2015 1 8 57030 -0.0094 0.2386 -0.44546 2015 1 9 57031 -0.0113 0.2402 -0.44646 2015 1 10 57032 -0.0132 0.2419 -0.44754 2015 1 11 57033 -0.0150 0.2436 -0.44869 2015 1 12 57034 -0.0168 0.2454 -0.44990 2015 1 13 57035 -0.0185 0.2471 -0.45117 2015 1 14 57036 -0.0203 0.2489 -0.45239 2015 1 15 57037 -0.0220 0.2508 -0.45358 2015 1 16 57038 -0.0236 0.2526 -0.45471 2015 1 17 57039 -0.0253 0.2545 -0.45585 2015 1 18 57040 -0.0269 0.2564 -0.45697 2015 1 19 57041 -0.0285 0.2583 -0.45810 2015 1 20 57042 -0.0300 0.2603 -0.45933 2015 1 21 57043 -0.0315 0.2623 -0.46068 2015 1 22 57044 -0.0330 0.2643 -0.46217 2015 1 23 57045 -0.0344 0.2663 -0.46379 2015 1 24 57046 -0.0358 0.2684 -0.46546 2015 1 25 57047 -0.0372 0.2704 -0.46711 2015 1 26 57048 -0.0385 0.2725 -0.46867 2015 1 27 57049 -0.0398 0.2747 -0.47011 2015 1 28 57050 -0.0411 0.2768 -0.47141 2015 1 29 57051 -0.0423 0.2790 -0.47260 2015 1 30 57052 -0.0435 0.2812 -0.47370 2015 1 31 57053 -0.0446 0.2834 -0.47475 2015 2 1 57054 -0.0458 0.2856 -0.47573 2015 2 2 57055 -0.0468 0.2878 -0.47673 2015 2 3 57056 -0.0479 0.2901 -0.47772 2015 2 4 57057 -0.0489 0.2924 -0.47875 2015 2 5 57058 -0.0498 0.2947 -0.47986 2015 2 6 57059 -0.0507 0.2970 -0.48104 2015 2 7 57060 -0.0516 0.2993 -0.48230 2015 2 8 57061 -0.0524 0.3017 -0.48355 2015 2 9 57062 -0.0532 0.3040 -0.48479 2015 2 10 57063 -0.0540 0.3064 -0.48599 2015 2 11 57064 -0.0547 0.3088 -0.48710 2015 2 12 57065 -0.0554 0.3112 -0.48815 2015 2 13 57066 -0.0560 0.3136 -0.48915 2015 2 14 57067 -0.0566 0.3160 -0.49011 2015 2 15 57068 -0.0571 0.3184 -0.49111 2015 2 16 57069 -0.0576 0.3209 -0.49223 2015 2 17 57070 -0.0581 0.3233 -0.49352 2015 2 18 57071 -0.0585 0.3258 -0.49505 2015 2 19 57072 -0.0589 0.3282 -0.49682 2015 2 20 57073 -0.0592 0.3307 -0.49878 2015 2 21 57074 -0.0595 0.3332 -0.50084 2015 2 22 57075 -0.0598 0.3357 -0.50290 2015 2 23 57076 -0.0600 0.3382 -0.50489 2015 2 24 57077 -0.0601 0.3407 -0.50675 2015 2 25 57078 -0.0602 0.3432 -0.50843 2015 2 26 57079 -0.0603 0.3457 -0.50996 2015 2 27 57080 -0.0603 0.3482 -0.51136 2015 2 28 57081 -0.0603 0.3507 -0.51276 2015 3 1 57082 -0.0602 0.3532 -0.51412 2015 3 2 57083 -0.0601 0.3557 -0.51545 2015 3 3 57084 -0.0600 0.3582 -0.51686 2015 3 4 57085 -0.0598 0.3607 -0.51829 2015 3 5 57086 -0.0595 0.3632 -0.51979 2015 3 6 57087 -0.0592 0.3657 -0.52135 2015 3 7 57088 -0.0589 0.3682 -0.52292 2015 3 8 57089 -0.0585 0.3707 -0.52447 2015 3 9 57090 -0.0581 0.3732 -0.52600 2015 3 10 57091 -0.0577 0.3757 -0.52749 2015 3 11 57092 -0.0572 0.3782 -0.52886 2015 3 12 57093 -0.0566 0.3807 -0.53016 2015 3 13 57094 -0.0560 0.3832 -0.53144 2015 3 14 57095 -0.0554 0.3856 -0.53271 2015 3 15 57096 -0.0547 0.3881 -0.53398 2015 3 16 57097 -0.0540 0.3905 -0.53532 2015 3 17 57098 -0.0532 0.3930 -0.53680 2015 3 18 57099 -0.0524 0.3954 -0.53843 2015 3 19 57100 -0.0515 0.3978 -0.54023 2015 3 20 57101 -0.0506 0.4002 -0.54216 2015 3 21 57102 -0.0497 0.4026 -0.54424 2015 3 22 57103 -0.0487 0.4050 -0.54627 2015 3 23 57104 -0.0477 0.4073 -0.54820 2015 3 24 57105 -0.0466 0.4097 -0.55005 2015 3 25 57106 -0.0455 0.4120 -0.55181 2015 3 26 57107 -0.0443 0.4144 -0.55349 2015 3 27 57108 -0.0431 0.4167 -0.55512 2015 3 28 57109 -0.0419 0.4190 -0.55667 2015 3 29 57110 -0.0406 0.4212 -0.55822 2015 3 30 57111 -0.0393 0.4235 -0.55982 2015 3 31 57112 -0.0379 0.4257 -0.56150 2015 4 1 57113 -0.0365 0.4279 -0.56327 2015 4 2 57114 -0.0351 0.4301 -0.56511 2015 4 3 57115 -0.0336 0.4323 -0.56696 2015 4 4 57116 -0.0321 0.4344 -0.56881 2015 4 5 57117 -0.0306 0.4366 -0.57063 2015 4 6 57118 -0.0290 0.4387 -0.57242 2015 4 7 57119 -0.0273 0.4408 -0.57413 2015 4 8 57120 -0.0257 0.4428 -0.57579 2015 4 9 57121 -0.0239 0.4449 -0.57740 2015 4 10 57122 -0.0222 0.4469 -0.57899 2015 4 11 57123 -0.0204 0.4489 -0.58055 2015 4 12 57124 -0.0186 0.4508 -0.58221 2015 4 13 57125 -0.0167 0.4528 -0.58401 2015 4 14 57126 -0.0149 0.4547 -0.58590 2015 4 15 57127 -0.0129 0.4565 -0.58794 2015 4 16 57128 -0.0110 0.4584 -0.59012 2015 4 17 57129 -0.0090 0.4602 -0.59233 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) 56742 -79.48 0.30 -13.07 0.04 56743 -79.50 0.30 -12.97 0.04 56744 -79.58 0.30 -12.70 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56742 0.332 0.119 -0.082 0.040 56743 0.292 0.119 -0.079 0.040 56744 0.253 0.119 -0.072 0.040 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).