********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 December 2016 Vol. XXIX No. 050 ______________________________________________________________________ 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 = -0.4 seconds beginning 17 Nov 2016 at 0000 UTC Beginning 1 July 2015: TAI-UTC = 36.000 000 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 * * * * An additional backup mirror of the daily and Bulletin A EOP data * * is now hosted by NASA's Archive of Space Geodesy Data server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data will be uploaded here at 18:00 UTC, and * * Bulletin A EOP data should by available by 20:00 UTC. * * * * A positive leap second WILL be introduced in UTC on 31 Dec 2016. * * * * Distribution statement A. Approved for public release: * * distribution unlimited. * * * *********************************************************************** ________________________________________________________________________ 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 16 12 9 57731 0.11835 .00009 0.26564 .00009 -0.380902 0.000013 16 12 10 57732 0.11819 .00009 0.26593 .00009 -0.382718 0.000015 16 12 11 57733 0.11807 .00009 0.26633 .00009 -0.384530 0.000016 16 12 12 57734 0.11758 .00009 0.26682 .00009 -0.386184 0.000015 16 12 13 57735 0.11642 .00009 0.26721 .00009 -0.387710 0.000014 16 12 14 57736 0.11481 .00009 0.26737 .00009 -0.389023 0.000011 16 12 15 57737 0.11312 .00009 0.26741 .00009 -0.390252 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 = 0.1199 - 0.0232 cos A - 0.1064 sin A + 0.0179 cos C - 0.0149 sin C y = 0.3796 - 0.0994 cos A + 0.0204 sin A - 0.0149 cos C - 0.0179 sin C UT1-UTC = -0.3942 - 0.00132 (MJD - 57745) - (UT2-UT1) where A = 2*pi*(MJD-57737)/365.25 and C = 2*pi*(MJD-57737)/435. TAI-UTC(MJD 57738) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57737)**0.80 S t = 0.00025 (MJD-57737)**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) 2016 12 16 57738 0.1114 0.2675 -0.39150 2016 12 17 57739 0.1096 0.2676 -0.39275 2016 12 18 57740 0.1080 0.2677 -0.39396 2016 12 19 57741 0.1063 0.2679 -0.39515 2016 12 20 57742 0.1047 0.2681 -0.39631 2016 12 21 57743 0.1031 0.2683 -0.39746 2016 12 22 57744 0.1015 0.2685 -0.39859 2016 12 23 57745 0.0999 0.2687 -0.39969 2016 12 24 57746 0.0983 0.2690 -0.40071 2016 12 25 57747 0.0967 0.2693 -0.40163 2016 12 26 57748 0.0951 0.2696 -0.40250 2016 12 27 57749 0.0935 0.2698 -0.40335 2016 12 28 57750 0.0919 0.2701 -0.40416 2016 12 29 57751 0.0904 0.2704 -0.40494 2016 12 30 57752 0.0890 0.2708 -0.40575 2016 12 31 57753 0.0875 0.2712 -0.40663 2017 1 1 57754 0.0860 0.2717 0.59240 2017 1 2 57755 0.0844 0.2721 0.59127 2017 1 3 57756 0.0829 0.2726 0.58998 2017 1 4 57757 0.0813 0.2731 0.58852 2017 1 5 57758 0.0798 0.2736 0.58695 2017 1 6 57759 0.0782 0.2741 0.58531 2017 1 7 57760 0.0767 0.2747 0.58367 2017 1 8 57761 0.0752 0.2752 0.58209 2017 1 9 57762 0.0737 0.2758 0.58063 2017 1 10 57763 0.0722 0.2764 0.57931 2017 1 11 57764 0.0707 0.2770 0.57811 2017 1 12 57765 0.0693 0.2777 0.57695 2017 1 13 57766 0.0678 0.2784 0.57577 2017 1 14 57767 0.0664 0.2791 0.57452 2017 1 15 57768 0.0650 0.2798 0.57320 2017 1 16 57769 0.0636 0.2805 0.57181 2017 1 17 57770 0.0622 0.2813 0.57040 2017 1 18 57771 0.0608 0.2820 0.56899 2017 1 19 57772 0.0595 0.2828 0.56762 2017 1 20 57773 0.0581 0.2836 0.56633 2017 1 21 57774 0.0568 0.2845 0.56513 2017 1 22 57775 0.0555 0.2853 0.56402 2017 1 23 57776 0.0542 0.2862 0.56300 2017 1 24 57777 0.0529 0.2871 0.56205 2017 1 25 57778 0.0517 0.2880 0.56113 2017 1 26 57779 0.0504 0.2890 0.56022 2017 1 27 57780 0.0492 0.2899 0.55926 2017 1 28 57781 0.0480 0.2909 0.55821 2017 1 29 57782 0.0468 0.2919 0.55704 2017 1 30 57783 0.0457 0.2929 0.55571 2017 1 31 57784 0.0445 0.2939 0.55424 2017 2 1 57785 0.0434 0.2950 0.55265 2017 2 2 57786 0.0423 0.2961 0.55100 2017 2 3 57787 0.0413 0.2971 0.54935 2017 2 4 57788 0.0402 0.2982 0.54774 2017 2 5 57789 0.0392 0.2994 0.54623 2017 2 6 57790 0.0382 0.3005 0.54482 2017 2 7 57791 0.0372 0.3016 0.54351 2017 2 8 57792 0.0362 0.3028 0.54225 2017 2 9 57793 0.0353 0.3040 0.54099 2017 2 10 57794 0.0344 0.3052 0.53968 2017 2 11 57795 0.0335 0.3064 0.53829 2017 2 12 57796 0.0326 0.3076 0.53681 2017 2 13 57797 0.0318 0.3088 0.53527 2017 2 14 57798 0.0309 0.3101 0.53370 2017 2 15 57799 0.0301 0.3114 0.53215 2017 2 16 57800 0.0294 0.3126 0.53064 2017 2 17 57801 0.0286 0.3139 0.52921 2017 2 18 57802 0.0279 0.3152 0.52787 2017 2 19 57803 0.0272 0.3165 0.52661 2017 2 20 57804 0.0265 0.3179 0.52543 2017 2 21 57805 0.0259 0.3192 0.52429 2017 2 22 57806 0.0253 0.3205 0.52316 2017 2 23 57807 0.0247 0.3219 0.52199 2017 2 24 57808 0.0241 0.3232 0.52073 2017 2 25 57809 0.0236 0.3246 0.51935 2017 2 26 57810 0.0231 0.3260 0.51780 2017 2 27 57811 0.0226 0.3274 0.51608 2017 2 28 57812 0.0221 0.3288 0.51420 2017 3 1 57813 0.0217 0.3302 0.51222 2017 3 2 57814 0.0213 0.3316 0.51021 2017 3 3 57815 0.0209 0.3330 0.50825 2017 3 4 57816 0.0206 0.3345 0.50639 2017 3 5 57817 0.0202 0.3359 0.50465 2017 3 6 57818 0.0200 0.3373 0.50302 2017 3 7 57819 0.0197 0.3388 0.50147 2017 3 8 57820 0.0194 0.3402 0.49994 2017 3 9 57821 0.0192 0.3417 0.49837 2017 3 10 57822 0.0191 0.3431 0.49673 2017 3 11 57823 0.0189 0.3446 0.49500 2017 3 12 57824 0.0188 0.3461 0.49319 2017 3 13 57825 0.0187 0.3475 0.49134 2017 3 14 57826 0.0186 0.3490 0.48948 2017 3 15 57827 0.0186 0.3505 0.48767 2017 3 16 57828 0.0185 0.3519 0.48591 2017 3 17 57829 0.0185 0.3534 0.48425 2017 3 18 57830 0.0186 0.3549 0.48268 2017 3 19 57831 0.0187 0.3564 0.48119 2017 3 20 57832 0.0187 0.3578 0.47976 2017 3 21 57833 0.0189 0.3593 0.47837 2017 3 22 57834 0.0190 0.3608 0.47695 2017 3 23 57835 0.0192 0.3622 0.47548 2017 3 24 57836 0.0194 0.3637 0.47390 2017 3 25 57837 0.0196 0.3652 0.47218 2017 3 26 57838 0.0199 0.3666 0.47027 2017 3 27 57839 0.0202 0.3681 0.46820 2017 3 28 57840 0.0205 0.3695 0.46599 2017 3 29 57841 0.0208 0.3710 0.46373 2017 3 30 57842 0.0212 0.3724 0.46149 2017 3 31 57843 0.0216 0.3739 0.45935 2017 4 1 57844 0.0220 0.3753 0.45736 2017 4 2 57845 0.0225 0.3767 0.45552 2017 4 3 57846 0.0229 0.3782 0.45381 2017 4 4 57847 0.0234 0.3796 0.45216 2017 4 5 57848 0.0240 0.3810 0.45050 2017 4 6 57849 0.0245 0.3824 0.44879 2017 4 7 57850 0.0251 0.3838 0.44701 2017 4 8 57851 0.0257 0.3852 0.44516 2017 4 9 57852 0.0263 0.3865 0.44326 2017 4 10 57853 0.0270 0.3879 0.44135 2017 4 11 57854 0.0277 0.3893 0.43946 2017 4 12 57855 0.0284 0.3906 0.43764 2017 4 13 57856 0.0291 0.3919 0.43591 2017 4 14 57857 0.0299 0.3933 0.43428 2017 4 15 57858 0.0306 0.3946 0.43276 2017 4 16 57859 0.0314 0.3959 0.43133 2017 4 17 57860 0.0323 0.3972 0.42995 2017 4 18 57861 0.0331 0.3985 0.42860 2017 4 19 57862 0.0340 0.3997 0.42723 2017 4 20 57863 0.0349 0.4010 0.42578 2017 4 21 57864 0.0358 0.4022 0.42422 2017 4 22 57865 0.0367 0.4035 0.42250 2017 4 23 57866 0.0377 0.4047 0.42062 2017 4 24 57867 0.0387 0.4059 0.41858 2017 4 25 57868 0.0397 0.4071 0.41644 2017 4 26 57869 0.0407 0.4082 0.41428 2017 4 27 57870 0.0417 0.4094 0.41219 2017 4 28 57871 0.0428 0.4105 0.41025 2017 4 29 57872 0.0439 0.4116 0.40848 2017 4 30 57873 0.0450 0.4128 0.40685 2017 5 1 57874 0.0461 0.4138 0.40532 2017 5 2 57875 0.0473 0.4149 0.40383 2017 5 3 57876 0.0484 0.4160 0.40233 2017 5 4 57877 0.0496 0.4170 0.40078 2017 5 5 57878 0.0508 0.4180 0.39918 2017 5 6 57879 0.0520 0.4190 0.39754 2017 5 7 57880 0.0533 0.4200 0.39591 2017 5 8 57881 0.0545 0.4210 0.39431 2017 5 9 57882 0.0558 0.4219 0.39278 2017 5 10 57883 0.0571 0.4229 0.39134 2017 5 11 57884 0.0584 0.4238 0.39001 2017 5 12 57885 0.0597 0.4247 0.38881 2017 5 13 57886 0.0610 0.4255 0.38771 2017 5 14 57887 0.0624 0.4264 0.38670 2017 5 15 57888 0.0637 0.4272 0.38574 2017 5 16 57889 0.0651 0.4280 0.38479 2017 5 17 57890 0.0665 0.4288 0.38380 2017 5 18 57891 0.0679 0.4296 0.38273 2017 5 19 57892 0.0693 0.4303 0.38155 2017 5 20 57893 0.0707 0.4311 0.38022 2017 5 21 57894 0.0722 0.4318 0.37875 2017 5 22 57895 0.0736 0.4325 0.37715 2017 5 23 57896 0.0751 0.4331 0.37550 2017 5 24 57897 0.0765 0.4337 0.37386 2017 5 25 57898 0.0780 0.4344 0.37233 2017 5 26 57899 0.0795 0.4350 0.37095 2017 5 27 57900 0.0810 0.4355 0.36973 2017 5 28 57901 0.0825 0.4361 0.36864 2017 5 29 57902 0.0840 0.4366 0.36760 2017 5 30 57903 0.0855 0.4371 0.36657 2017 5 31 57904 0.0871 0.4376 0.36551 2017 6 1 57905 0.0886 0.4380 0.36441 2017 6 2 57906 0.0901 0.4385 0.36328 2017 6 3 57907 0.0917 0.4389 0.36215 2017 6 4 57908 0.0932 0.4393 0.36107 2017 6 5 57909 0.0948 0.4396 0.36006 2017 6 6 57910 0.0964 0.4400 0.35914 2017 6 7 57911 0.0979 0.4403 0.35835 2017 6 8 57912 0.0995 0.4406 0.35767 2017 6 9 57913 0.1011 0.4408 0.35712 2017 6 10 57914 0.1026 0.4411 0.35666 2017 6 11 57915 0.1042 0.4413 0.35627 2017 6 12 57916 0.1058 0.4415 0.35591 2017 6 13 57917 0.1074 0.4417 0.35554 2017 6 14 57918 0.1090 0.4418 0.35512 2017 6 15 57919 0.1106 0.4419 0.35461 2017 6 16 57920 0.1121 0.4420 0.35398 2017 6 17 57921 0.1137 0.4421 0.35324 2017 6 18 57922 0.1153 0.4422 0.35241 2017 6 19 57923 0.1169 0.4422 0.35151 2017 6 20 57924 0.1185 0.4422 0.35061 2017 6 21 57925 0.1200 0.4422 0.34978 2017 6 22 57926 0.1216 0.4421 0.34908 2017 6 23 57927 0.1232 0.4420 0.34854 2017 6 24 57928 0.1247 0.4420 0.34812 2017 6 25 57929 0.1263 0.4418 0.34777 2017 6 26 57930 0.1279 0.4417 0.34742 2017 6 27 57931 0.1294 0.4415 0.34701 2017 6 28 57932 0.1309 0.4413 0.34652 2017 6 29 57933 0.1325 0.4411 0.34596 2017 6 30 57934 0.1340 0.4409 0.34536 2017 7 1 57935 0.1355 0.4406 0.34476 2017 7 2 57936 0.1371 0.4403 0.34419 2017 7 3 57937 0.1386 0.4400 0.34370 2017 7 4 57938 0.1401 0.4397 0.34331 2017 7 5 57939 0.1416 0.4394 0.34303 2017 7 6 57940 0.1431 0.4390 0.34285 2017 7 7 57941 0.1445 0.4386 0.34274 2017 7 8 57942 0.1460 0.4382 0.34266 2017 7 9 57943 0.1474 0.4377 0.34257 2017 7 10 57944 0.1489 0.4373 0.34240 2017 7 11 57945 0.1503 0.4368 0.34212 2017 7 12 57946 0.1517 0.4363 0.34169 2017 7 13 57947 0.1532 0.4357 0.34108 2017 7 14 57948 0.1545 0.4352 0.34029 2017 7 15 57949 0.1559 0.4346 0.33935 2017 7 16 57950 0.1573 0.4340 0.33830 2017 7 17 57951 0.1587 0.4334 0.33719 2017 7 18 57952 0.1600 0.4327 0.33609 2017 7 19 57953 0.1613 0.4321 0.33504 2017 7 20 57954 0.1626 0.4314 0.33407 2017 7 21 57955 0.1639 0.4307 0.33319 2017 7 22 57956 0.1652 0.4300 0.33235 2017 7 23 57957 0.1665 0.4293 0.33147 2017 7 24 57958 0.1677 0.4285 0.33046 2017 7 25 57959 0.1690 0.4277 0.32936 2017 7 26 57960 0.1702 0.4269 0.32820 2017 7 27 57961 0.1714 0.4261 0.32707 2017 7 28 57962 0.1726 0.4253 0.32597 2017 7 29 57963 0.1737 0.4244 0.32496 2017 7 30 57964 0.1749 0.4236 0.32402 2017 7 31 57965 0.1760 0.4227 0.32312 2017 8 1 57966 0.1771 0.4218 0.32236 2017 8 2 57967 0.1782 0.4208 0.32177 2017 8 3 57968 0.1793 0.4199 0.32132 2017 8 4 57969 0.1803 0.4190 0.32099 2017 8 5 57970 0.1813 0.4180 0.32077 2017 8 6 57971 0.1824 0.4170 0.32056 2017 8 7 57972 0.1833 0.4160 0.32032 2017 8 8 57973 0.1843 0.4150 0.31988 2017 8 9 57974 0.1853 0.4140 0.31935 2017 8 10 57975 0.1862 0.4129 0.31860 2017 8 11 57976 0.1871 0.4118 0.31774 2017 8 12 57977 0.1880 0.4108 0.31680 2017 8 13 57978 0.1888 0.4097 0.31580 2017 8 14 57979 0.1897 0.4086 0.31485 2017 8 15 57980 0.1905 0.4075 0.31399 2017 8 16 57981 0.1913 0.4063 0.31331 2017 8 17 57982 0.1920 0.4052 0.31264 2017 8 18 57983 0.1928 0.4041 0.31206 2017 8 19 57984 0.1935 0.4029 0.31147 2017 8 20 57985 0.1942 0.4017 0.31087 2017 8 21 57986 0.1949 0.4005 0.31023 2017 8 22 57987 0.1955 0.3994 0.30946 2017 8 23 57988 0.1961 0.3982 0.30857 2017 8 24 57989 0.1967 0.3969 0.30753 2017 8 25 57990 0.1973 0.3957 0.30652 2017 8 26 57991 0.1979 0.3945 0.30560 2017 8 27 57992 0.1984 0.3933 0.30476 2017 8 28 57993 0.1989 0.3920 0.30402 2017 8 29 57994 0.1994 0.3908 0.30334 2017 8 30 57995 0.1998 0.3895 0.30287 2017 8 31 57996 0.2002 0.3882 0.30244 2017 9 1 57997 0.2006 0.3870 0.30201 2017 9 2 57998 0.2010 0.3857 0.30158 2017 9 3 57999 0.2014 0.3844 0.30102 2017 9 4 58000 0.2017 0.3831 0.30031 2017 9 5 58001 0.2020 0.3818 0.29943 2017 9 6 58002 0.2023 0.3805 0.29841 2017 9 7 58003 0.2025 0.3792 0.29721 2017 9 8 58004 0.2027 0.3779 0.29586 2017 9 9 58005 0.2029 0.3766 0.29456 2017 9 10 58006 0.2031 0.3753 0.29317 2017 9 11 58007 0.2032 0.3739 0.29196 2017 9 12 58008 0.2034 0.3726 0.29077 2017 9 13 58009 0.2035 0.3713 0.28965 2017 9 14 58010 0.2035 0.3700 0.28850 2017 9 15 58011 0.2036 0.3687 0.28735 2017 9 16 58012 0.2036 0.3673 0.28612 2017 9 17 58013 0.2036 0.3660 0.28477 2017 9 18 58014 0.2035 0.3647 0.28327 2017 9 19 58015 0.2035 0.3634 0.28166 2017 9 20 58016 0.2034 0.3620 0.27990 2017 9 21 58017 0.2033 0.3607 0.27810 2017 9 22 58018 0.2031 0.3594 0.27635 2017 9 23 58019 0.2030 0.3581 0.27479 2017 9 24 58020 0.2028 0.3568 0.27329 2017 9 25 58021 0.2026 0.3555 0.27181 2017 9 26 58022 0.2023 0.3542 0.27050 2017 9 27 58023 0.2020 0.3529 0.26914 2017 9 28 58024 0.2018 0.3516 0.26794 2017 9 29 58025 0.2014 0.3503 0.26677 2017 9 30 58026 0.2011 0.3490 0.26553 2017 10 1 58027 0.2007 0.3477 0.26422 2017 10 2 58028 0.2003 0.3464 0.26276 2017 10 3 58029 0.1999 0.3452 0.26110 2017 10 4 58030 0.1995 0.3439 0.25928 2017 10 5 58031 0.1990 0.3426 0.25736 2017 10 6 58032 0.1985 0.3414 0.25536 2017 10 7 58033 0.1980 0.3402 0.25325 2017 10 8 58034 0.1975 0.3389 0.25134 2017 10 9 58035 0.1969 0.3377 0.24946 2017 10 10 58036 0.1964 0.3365 0.24761 2017 10 11 58037 0.1958 0.3353 0.24581 2017 10 12 58038 0.1951 0.3341 0.24410 2017 10 13 58039 0.1945 0.3329 0.24242 2017 10 14 58040 0.1938 0.3317 0.24064 2017 10 15 58041 0.1931 0.3306 0.23880 2017 10 16 58042 0.1924 0.3294 0.23695 2017 10 17 58043 0.1917 0.3283 0.23509 2017 10 18 58044 0.1909 0.3271 0.23307 2017 10 19 58045 0.1902 0.3260 0.23107 2017 10 20 58046 0.1894 0.3249 0.22917 2017 10 21 58047 0.1885 0.3238 0.22735 2017 10 22 58048 0.1877 0.3227 0.22569 2017 10 23 58049 0.1868 0.3217 0.22416 2017 10 24 58050 0.1860 0.3206 0.22278 2017 10 25 58051 0.1851 0.3196 0.22144 2017 10 26 58052 0.1842 0.3185 0.22032 2017 10 27 58053 0.1832 0.3175 0.21915 2017 10 28 58054 0.1823 0.3165 0.21795 2017 10 29 58055 0.1813 0.3156 0.21661 2017 10 30 58056 0.1803 0.3146 0.21514 2017 10 31 58057 0.1793 0.3136 0.21348 2017 11 1 58058 0.1783 0.3127 0.21161 2017 11 2 58059 0.1772 0.3118 0.20966 2017 11 3 58060 0.1762 0.3109 0.20751 2017 11 4 58061 0.1751 0.3100 0.20542 2017 11 5 58062 0.1740 0.3091 0.20330 2017 11 6 58063 0.1729 0.3083 0.20131 2017 11 7 58064 0.1718 0.3075 0.19947 2017 11 8 58065 0.1707 0.3066 0.19782 2017 11 9 58066 0.1695 0.3058 0.19608 2017 11 10 58067 0.1684 0.3051 0.19452 2017 11 11 58068 0.1672 0.3043 0.19290 2017 11 12 58069 0.1660 0.3036 0.19121 2017 11 13 58070 0.1648 0.3028 0.18948 2017 11 14 58071 0.1636 0.3021 0.18766 2017 11 15 58072 0.1624 0.3015 0.18589 2017 11 16 58073 0.1612 0.3008 0.18419 2017 11 17 58074 0.1599 0.3001 0.18244 2017 11 18 58075 0.1587 0.2995 0.18079 2017 11 19 58076 0.1574 0.2989 0.17920 2017 11 20 58077 0.1561 0.2983 0.17766 2017 11 21 58078 0.1548 0.2978 0.17615 2017 11 22 58079 0.1535 0.2972 0.17465 2017 11 23 58080 0.1522 0.2967 0.17313 2017 11 24 58081 0.1509 0.2962 0.17162 2017 11 25 58082 0.1496 0.2957 0.17001 2017 11 26 58083 0.1483 0.2952 0.16828 2017 11 27 58084 0.1469 0.2948 0.16639 2017 11 28 58085 0.1456 0.2944 0.16434 2017 11 29 58086 0.1443 0.2940 0.16226 2017 11 30 58087 0.1429 0.2936 0.15998 2017 12 1 58088 0.1416 0.2933 0.15769 2017 12 2 58089 0.1402 0.2929 0.15532 2017 12 3 58090 0.1388 0.2926 0.15308 2017 12 4 58091 0.1375 0.2923 0.15092 2017 12 5 58092 0.1361 0.2921 0.14882 2017 12 6 58093 0.1347 0.2918 0.14682 2017 12 7 58094 0.1333 0.2916 0.14476 2017 12 8 58095 0.1320 0.2914 0.14264 2017 12 9 58096 0.1306 0.2912 0.14037 2017 12 10 58097 0.1292 0.2910 0.13803 2017 12 11 58098 0.1278 0.2909 0.13568 2017 12 12 58099 0.1264 0.2908 0.13336 2017 12 13 58100 0.1250 0.2907 0.13113 2017 12 14 58101 0.1237 0.2906 0.12907 2017 12 15 58102 0.1223 0.2906 0.12712 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) 57715 -100.72 0.13 -10.49 0.06 57716 -100.53 0.13 -10.34 0.06 57717 -100.36 0.13 -10.21 0.06 57718 -100.37 0.30 -10.04 0.15 57719 -100.47 0.30 -9.87 0.03 57720 -100.49 0.30 -9.79 0.03 57721 -100.39 0.30 -9.80 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57715 0.144 0.052 -0.238 0.060 57716 0.136 0.052 -0.221 0.060 57717 0.134 0.052 -0.210 0.060 57718 0.127 0.119 -0.198 0.150 57719 0.115 0.119 -0.178 0.030 57720 0.112 0.119 -0.157 0.030 57721 0.117 0.119 -0.128 0.030 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).