********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 June 2019 Vol. XXXII No. 026 ______________________________________________________________________ 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 02 May 2019 at 0000 UTC Beginning 1 January 2017: TAI-UTC = 37.000 000 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 be available by 20:00 UTC. * * * * The method of computing statistics for the second instance of the * * IGS Final comparison in the file gpspol.asc during the last 30 * * days has been updated to use the more accurate smoothing cubic * * spline used in the EOP combination. * * * * Questions and enquiries can be emailed to the following address: * * usn.ncr.navobsydc.mbx.eopcp@mail.mil * * * * 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 19 6 21 58655 0.14717 .00009 0.42602 .00009 -0.174547 0.000013 19 6 22 58656 0.14837 .00009 0.42589 .00009 -0.174423 0.000013 19 6 23 58657 0.14920 .00009 0.42570 .00009 -0.174347 0.000014 19 6 24 58658 0.14974 .00009 0.42524 .00009 -0.174361 0.000004 19 6 25 58659 0.15048 .00009 0.42448 .00009 -0.174419 0.000004 19 6 26 58660 0.15162 .00009 0.42354 .00009 -0.174473 0.000003 19 6 27 58661 0.15305 .00009 0.42256 .00009 -0.174539 0.000003 _______________________________________________________________________ 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 = 0.1311 + 0.0398 cos A + 0.0766 sin A - 0.0180 cos C + 0.0008 sin C y = 0.3583 + 0.0687 cos A - 0.0367 sin A + 0.0008 cos C + 0.0180 sin C UT1-UTC = -0.1542 - 0.00063 (MJD - 58669) - (UT2-UT1) where A = 2*pi*(MJD-58661)/365.25 and C = 2*pi*(MJD-58661)/435. TAI-UTC(MJD 58662) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58661)**0.80 S t = 0.00025 (MJD-58661)**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) 2019 6 28 58662 0.1546 0.4217 -0.17460 2019 6 29 58663 0.1561 0.4210 -0.17462 2019 6 30 58664 0.1576 0.4205 -0.17453 2019 7 1 58665 0.1589 0.4200 -0.17430 2019 7 2 58666 0.1602 0.4194 -0.17393 2019 7 3 58667 0.1614 0.4188 -0.17348 2019 7 4 58668 0.1625 0.4182 -0.17302 2019 7 5 58669 0.1638 0.4174 -0.17267 2019 7 6 58670 0.1650 0.4167 -0.17248 2019 7 7 58671 0.1663 0.4160 -0.17249 2019 7 8 58672 0.1676 0.4153 -0.17267 2019 7 9 58673 0.1689 0.4146 -0.17293 2019 7 10 58674 0.1701 0.4139 -0.17316 2019 7 11 58675 0.1713 0.4132 -0.17331 2019 7 12 58676 0.1725 0.4124 -0.17332 2019 7 13 58677 0.1737 0.4117 -0.17317 2019 7 14 58678 0.1748 0.4108 -0.17286 2019 7 15 58679 0.1760 0.4100 -0.17240 2019 7 16 58680 0.1771 0.4092 -0.17186 2019 7 17 58681 0.1782 0.4083 -0.17128 2019 7 18 58682 0.1793 0.4075 -0.17072 2019 7 19 58683 0.1804 0.4066 -0.17022 2019 7 20 58684 0.1814 0.4057 -0.16982 2019 7 21 58685 0.1824 0.4048 -0.16953 2019 7 22 58686 0.1834 0.4039 -0.16935 2019 7 23 58687 0.1844 0.4029 -0.16926 2019 7 24 58688 0.1854 0.4019 -0.16921 2019 7 25 58689 0.1864 0.4009 -0.16917 2019 7 26 58690 0.1873 0.3999 -0.16911 2019 7 27 58691 0.1882 0.3989 -0.16899 2019 7 28 58692 0.1891 0.3979 -0.16878 2019 7 29 58693 0.1899 0.3968 -0.16847 2019 7 30 58694 0.1908 0.3958 -0.16810 2019 7 31 58695 0.1916 0.3947 -0.16774 2019 8 1 58696 0.1924 0.3936 -0.16747 2019 8 2 58697 0.1932 0.3925 -0.16738 2019 8 3 58698 0.1939 0.3914 -0.16752 2019 8 4 58699 0.1947 0.3902 -0.16784 2019 8 5 58700 0.1954 0.3891 -0.16826 2019 8 6 58701 0.1960 0.3879 -0.16868 2019 8 7 58702 0.1967 0.3867 -0.16900 2019 8 8 58703 0.1973 0.3856 -0.16915 2019 8 9 58704 0.1979 0.3844 -0.16909 2019 8 10 58705 0.1985 0.3831 -0.16885 2019 8 11 58706 0.1991 0.3819 -0.16846 2019 8 12 58707 0.1996 0.3807 -0.16797 2019 8 13 58708 0.2001 0.3795 -0.16744 2019 8 14 58709 0.2006 0.3782 -0.16693 2019 8 15 58710 0.2011 0.3770 -0.16649 2019 8 16 58711 0.2015 0.3757 -0.16615 2019 8 17 58712 0.2019 0.3744 -0.16593 2019 8 18 58713 0.2023 0.3732 -0.16583 2019 8 19 58714 0.2027 0.3719 -0.16584 2019 8 20 58715 0.2030 0.3706 -0.16592 2019 8 21 58716 0.2033 0.3693 -0.16602 2019 8 22 58717 0.2036 0.3680 -0.16612 2019 8 23 58718 0.2038 0.3667 -0.16617 2019 8 24 58719 0.2040 0.3653 -0.16614 2019 8 25 58720 0.2042 0.3640 -0.16604 2019 8 26 58721 0.2044 0.3627 -0.16588 2019 8 27 58722 0.2046 0.3614 -0.16571 2019 8 28 58723 0.2047 0.3600 -0.16561 2019 8 29 58724 0.2048 0.3587 -0.16568 2019 8 30 58725 0.2048 0.3574 -0.16599 2019 8 31 58726 0.2049 0.3560 -0.16655 2019 9 1 58727 0.2049 0.3547 -0.16730 2019 9 2 58728 0.2049 0.3533 -0.16812 2019 9 3 58729 0.2048 0.3520 -0.16888 2019 9 4 58730 0.2047 0.3506 -0.16949 2019 9 5 58731 0.2046 0.3493 -0.16988 2019 9 6 58732 0.2045 0.3479 -0.17007 2019 9 7 58733 0.2044 0.3466 -0.17008 2019 9 8 58734 0.2042 0.3453 -0.16999 2019 9 9 58735 0.2040 0.3439 -0.16987 2019 9 10 58736 0.2037 0.3426 -0.16976 2019 9 11 58737 0.2035 0.3412 -0.16973 2019 9 12 58738 0.2032 0.3399 -0.16982 2019 9 13 58739 0.2029 0.3386 -0.17004 2019 9 14 58740 0.2025 0.3372 -0.17039 2019 9 15 58741 0.2022 0.3359 -0.17086 2019 9 16 58742 0.2018 0.3346 -0.17142 2019 9 17 58743 0.2014 0.3333 -0.17202 2019 9 18 58744 0.2009 0.3320 -0.17263 2019 9 19 58745 0.2004 0.3307 -0.17319 2019 9 20 58746 0.1999 0.3294 -0.17367 2019 9 21 58747 0.1994 0.3281 -0.17408 2019 9 22 58748 0.1989 0.3268 -0.17442 2019 9 23 58749 0.1983 0.3255 -0.17474 2019 9 24 58750 0.1977 0.3243 -0.17511 2019 9 25 58751 0.1971 0.3230 -0.17562 2019 9 26 58752 0.1964 0.3218 -0.17635 2019 9 27 58753 0.1957 0.3205 -0.17734 2019 9 28 58754 0.1950 0.3193 -0.17858 2019 9 29 58755 0.1943 0.3181 -0.17998 2019 9 30 58756 0.1936 0.3169 -0.18141 2019 10 1 58757 0.1928 0.3157 -0.18272 2019 10 2 58758 0.1920 0.3145 -0.18383 2019 10 3 58759 0.1912 0.3133 -0.18471 2019 10 4 58760 0.1903 0.3122 -0.18538 2019 10 5 58761 0.1895 0.3110 -0.18591 2019 10 6 58762 0.1886 0.3099 -0.18636 2019 10 7 58763 0.1877 0.3087 -0.18681 2019 10 8 58764 0.1867 0.3076 -0.18730 2019 10 9 58765 0.1858 0.3065 -0.18788 2019 10 10 58766 0.1848 0.3054 -0.18858 2019 10 11 58767 0.1838 0.3044 -0.18939 2019 10 12 58768 0.1828 0.3033 -0.19031 2019 10 13 58769 0.1817 0.3023 -0.19132 2019 10 14 58770 0.1806 0.3013 -0.19235 2019 10 15 58771 0.1796 0.3003 -0.19338 2019 10 16 58772 0.1785 0.2993 -0.19435 2019 10 17 58773 0.1773 0.2983 -0.19523 2019 10 18 58774 0.1762 0.2973 -0.19601 2019 10 19 58775 0.1750 0.2964 -0.19668 2019 10 20 58776 0.1738 0.2955 -0.19730 2019 10 21 58777 0.1726 0.2946 -0.19791 2019 10 22 58778 0.1714 0.2937 -0.19861 2019 10 23 58779 0.1702 0.2928 -0.19948 2019 10 24 58780 0.1689 0.2920 -0.20057 2019 10 25 58781 0.1677 0.2911 -0.20190 2019 10 26 58782 0.1664 0.2903 -0.20342 2019 10 27 58783 0.1651 0.2895 -0.20504 2019 10 28 58784 0.1638 0.2888 -0.20662 2019 10 29 58785 0.1624 0.2880 -0.20804 2019 10 30 58786 0.1611 0.2873 -0.20923 2019 10 31 58787 0.1597 0.2866 -0.21018 2019 11 1 58788 0.1583 0.2859 -0.21094 2019 11 2 58789 0.1570 0.2852 -0.21157 2019 11 3 58790 0.1556 0.2846 -0.21215 2019 11 4 58791 0.1541 0.2840 -0.21275 2019 11 5 58792 0.1527 0.2833 -0.21342 2019 11 6 58793 0.1513 0.2828 -0.21418 2019 11 7 58794 0.1498 0.2822 -0.21505 2019 11 8 58795 0.1484 0.2817 -0.21603 2019 11 9 58796 0.1469 0.2812 -0.21710 2019 11 10 58797 0.1454 0.2807 -0.21820 2019 11 11 58798 0.1439 0.2802 -0.21931 2019 11 12 58799 0.1424 0.2798 -0.22037 2019 11 13 58800 0.1409 0.2793 -0.22133 2019 11 14 58801 0.1394 0.2790 -0.22217 2019 11 15 58802 0.1378 0.2786 -0.22289 2019 11 16 58803 0.1363 0.2782 -0.22351 2019 11 17 58804 0.1348 0.2779 -0.22410 2019 11 18 58805 0.1332 0.2776 -0.22473 2019 11 19 58806 0.1317 0.2773 -0.22547 2019 11 20 58807 0.1301 0.2771 -0.22641 2019 11 21 58808 0.1285 0.2769 -0.22755 2019 11 22 58809 0.1270 0.2767 -0.22888 2019 11 23 58810 0.1254 0.2765 -0.23032 2019 11 24 58811 0.1238 0.2763 -0.23178 2019 11 25 58812 0.1222 0.2762 -0.23313 2019 11 26 58813 0.1207 0.2761 -0.23429 2019 11 27 58814 0.1191 0.2760 -0.23521 2019 11 28 58815 0.1175 0.2760 -0.23593 2019 11 29 58816 0.1159 0.2759 -0.23648 2019 11 30 58817 0.1143 0.2759 -0.23694 2019 12 1 58818 0.1127 0.2759 -0.23739 2019 12 2 58819 0.1111 0.2760 -0.23789 2019 12 3 58820 0.1096 0.2761 -0.23846 2019 12 4 58821 0.1080 0.2762 -0.23914 2019 12 5 58822 0.1064 0.2763 -0.23991 2019 12 6 58823 0.1048 0.2764 -0.24077 2019 12 7 58824 0.1032 0.2766 -0.24168 2019 12 8 58825 0.1017 0.2768 -0.24261 2019 12 9 58826 0.1001 0.2770 -0.24350 2019 12 10 58827 0.0985 0.2773 -0.24431 2019 12 11 58828 0.0970 0.2776 -0.24500 2019 12 12 58829 0.0954 0.2779 -0.24557 2019 12 13 58830 0.0939 0.2782 -0.24602 2019 12 14 58831 0.0923 0.2785 -0.24642 2019 12 15 58832 0.0908 0.2789 -0.24683 2019 12 16 58833 0.0892 0.2793 -0.24734 2019 12 17 58834 0.0877 0.2797 -0.24802 2019 12 18 58835 0.0862 0.2802 -0.24889 2019 12 19 58836 0.0847 0.2806 -0.24993 2019 12 20 58837 0.0832 0.2811 -0.25109 2019 12 21 58838 0.0817 0.2817 -0.25228 2019 12 22 58839 0.0802 0.2822 -0.25340 2019 12 23 58840 0.0788 0.2828 -0.25436 2019 12 24 58841 0.0773 0.2834 -0.25511 2019 12 25 58842 0.0759 0.2840 -0.25566 2019 12 26 58843 0.0744 0.2846 -0.25605 2019 12 27 58844 0.0730 0.2853 -0.25634 2019 12 28 58845 0.0716 0.2860 -0.25660 2019 12 29 58846 0.0702 0.2867 -0.25690 2019 12 30 58847 0.0688 0.2874 -0.25728 2019 12 31 58848 0.0675 0.2882 -0.25777 2020 1 1 58849 0.0661 0.2889 -0.25839 2020 1 2 58850 0.0648 0.2897 -0.25911 2020 1 3 58851 0.0635 0.2905 -0.25993 2020 1 4 58852 0.0622 0.2914 -0.26081 2020 1 5 58853 0.0609 0.2922 -0.26169 2020 1 6 58854 0.0596 0.2931 -0.26254 2020 1 7 58855 0.0583 0.2940 -0.26331 2020 1 8 58856 0.0571 0.2950 -0.26397 2020 1 9 58857 0.0559 0.2959 -0.26450 2020 1 10 58858 0.0547 0.2969 -0.26495 2020 1 11 58859 0.0535 0.2979 -0.26537 2020 1 12 58860 0.0523 0.2989 -0.26586 2020 1 13 58861 0.0512 0.2999 -0.26650 2020 1 14 58862 0.0501 0.3009 -0.26733 2020 1 15 58863 0.0490 0.3020 -0.26836 2020 1 16 58864 0.0479 0.3031 -0.26949 2020 1 17 58865 0.0468 0.3042 -0.27065 2020 1 18 58866 0.0458 0.3053 -0.27173 2020 1 19 58867 0.0448 0.3064 -0.27264 2020 1 20 58868 0.0438 0.3076 -0.27337 2020 1 21 58869 0.0428 0.3087 -0.27390 2020 1 22 58870 0.0418 0.3099 -0.27429 2020 1 23 58871 0.0409 0.3111 -0.27459 2020 1 24 58872 0.0400 0.3123 -0.27487 2020 1 25 58873 0.0391 0.3136 -0.27519 2020 1 26 58874 0.0383 0.3148 -0.27558 2020 1 27 58875 0.0374 0.3161 -0.27608 2020 1 28 58876 0.0366 0.3174 -0.27670 2020 1 29 58877 0.0358 0.3187 -0.27741 2020 1 30 58878 0.0351 0.3200 -0.27816 2020 1 31 58879 0.0343 0.3213 -0.27893 2020 2 1 58880 0.0336 0.3226 -0.27965 2020 2 2 58881 0.0329 0.3239 -0.28030 2020 2 3 58882 0.0323 0.3253 -0.28090 2020 2 4 58883 0.0316 0.3267 -0.28149 2020 2 5 58884 0.0310 0.3280 -0.28204 2020 2 6 58885 0.0305 0.3294 -0.28259 2020 2 7 58886 0.0299 0.3308 -0.28316 2020 2 8 58887 0.0294 0.3322 -0.28385 2020 2 9 58888 0.0289 0.3337 -0.28474 2020 2 10 58889 0.0284 0.3351 -0.28587 2020 2 11 58890 0.0280 0.3365 -0.28727 2020 2 12 58891 0.0276 0.3380 -0.28887 2020 2 13 58892 0.0272 0.3394 -0.29059 2020 2 14 58893 0.0268 0.3409 -0.29226 2020 2 15 58894 0.0265 0.3423 -0.29375 2020 2 16 58895 0.0262 0.3438 -0.29501 2020 2 17 58896 0.0259 0.3453 -0.29603 2020 2 18 58897 0.0257 0.3468 -0.29686 2020 2 19 58898 0.0254 0.3483 -0.29752 2020 2 20 58899 0.0252 0.3498 -0.29809 2020 2 21 58900 0.0251 0.3513 -0.29870 2020 2 22 58901 0.0250 0.3528 -0.29941 2020 2 23 58902 0.0249 0.3543 -0.30023 2020 2 24 58903 0.0248 0.3558 -0.30117 2020 2 25 58904 0.0247 0.3573 -0.30218 2020 2 26 58905 0.0247 0.3588 -0.30327 2020 2 27 58906 0.0247 0.3603 -0.30436 2020 2 28 58907 0.0248 0.3618 -0.30540 2020 2 29 58908 0.0249 0.3634 -0.30639 2020 3 1 58909 0.0250 0.3649 -0.30724 2020 3 2 58910 0.0251 0.3664 -0.30798 2020 3 3 58911 0.0253 0.3679 -0.30860 2020 3 4 58912 0.0255 0.3694 -0.30914 2020 3 5 58913 0.0257 0.3709 -0.30971 2020 3 6 58914 0.0259 0.3725 -0.31039 2020 3 7 58915 0.0262 0.3740 -0.31125 2020 3 8 58916 0.0265 0.3755 -0.31233 2020 3 9 58917 0.0269 0.3770 -0.31372 2020 3 10 58918 0.0272 0.3785 -0.31539 2020 3 11 58919 0.0276 0.3800 -0.31725 2020 3 12 58920 0.0280 0.3815 -0.31914 2020 3 13 58921 0.0285 0.3830 -0.32088 2020 3 14 58922 0.0290 0.3844 -0.32239 2020 3 15 58923 0.0295 0.3859 -0.32363 2020 3 16 58924 0.0300 0.3874 -0.32460 2020 3 17 58925 0.0306 0.3888 -0.32536 2020 3 18 58926 0.0312 0.3903 -0.32600 2020 3 19 58927 0.0318 0.3917 -0.32658 2020 3 20 58928 0.0325 0.3932 -0.32721 2020 3 21 58929 0.0331 0.3946 -0.32795 2020 3 22 58930 0.0338 0.3960 -0.32879 2020 3 23 58931 0.0346 0.3974 -0.32976 2020 3 24 58932 0.0353 0.3988 -0.33086 2020 3 25 58933 0.0361 0.4002 -0.33210 2020 3 26 58934 0.0369 0.4016 -0.33336 2020 3 27 58935 0.0378 0.4029 -0.33460 2020 3 28 58936 0.0386 0.4043 -0.33578 2020 3 29 58937 0.0395 0.4056 -0.33687 2020 3 30 58938 0.0405 0.4069 -0.33785 2020 3 31 58939 0.0414 0.4083 -0.33876 2020 4 1 58940 0.0424 0.4096 -0.33959 2020 4 2 58941 0.0434 0.4108 -0.34043 2020 4 3 58942 0.0444 0.4121 -0.34137 2020 4 4 58943 0.0454 0.4134 -0.34243 2020 4 5 58944 0.0465 0.4146 -0.34371 2020 4 6 58945 0.0476 0.4158 -0.34528 2020 4 7 58946 0.0487 0.4170 -0.34709 2020 4 8 58947 0.0498 0.4182 -0.34899 2020 4 9 58948 0.0510 0.4194 -0.35083 2020 4 10 58949 0.0522 0.4206 -0.35247 2020 4 11 58950 0.0534 0.4217 -0.35382 2020 4 12 58951 0.0546 0.4228 -0.35486 2020 4 13 58952 0.0559 0.4239 -0.35571 2020 4 14 58953 0.0572 0.4250 -0.35642 2020 4 15 58954 0.0584 0.4261 -0.35704 2020 4 16 58955 0.0598 0.4271 -0.35764 2020 4 17 58956 0.0611 0.4282 -0.35833 2020 4 18 58957 0.0624 0.4292 -0.35910 2020 4 19 58958 0.0638 0.4302 -0.35992 2020 4 20 58959 0.0652 0.4311 -0.36085 2020 4 21 58960 0.0666 0.4321 -0.36186 2020 4 22 58961 0.0681 0.4330 -0.36286 2020 4 23 58962 0.0695 0.4339 -0.36386 2020 4 24 58963 0.0710 0.4348 -0.36480 2020 4 25 58964 0.0724 0.4357 -0.36565 2020 4 26 58965 0.0739 0.4365 -0.36643 2020 4 27 58966 0.0755 0.4373 -0.36711 2020 4 28 58967 0.0770 0.4381 -0.36768 2020 4 29 58968 0.0785 0.4389 -0.36817 2020 4 30 58969 0.0801 0.4396 -0.36863 2020 5 1 58970 0.0817 0.4403 -0.36920 2020 5 2 58971 0.0833 0.4410 -0.36997 2020 5 3 58972 0.0849 0.4417 -0.37096 2020 5 4 58973 0.0865 0.4423 -0.37216 2020 5 5 58974 0.0881 0.4430 -0.37354 2020 5 6 58975 0.0897 0.4436 -0.37494 2020 5 7 58976 0.0914 0.4441 -0.37627 2020 5 8 58977 0.0931 0.4447 -0.37741 2020 5 9 58978 0.0947 0.4452 -0.37825 2020 5 10 58979 0.0964 0.4457 -0.37882 2020 5 11 58980 0.0981 0.4462 -0.37929 2020 5 12 58981 0.0998 0.4466 -0.37973 2020 5 13 58982 0.1015 0.4470 -0.38013 2020 5 14 58983 0.1032 0.4474 -0.38053 2020 5 15 58984 0.1050 0.4478 -0.38104 2020 5 16 58985 0.1067 0.4481 -0.38173 2020 5 17 58986 0.1084 0.4484 -0.38252 2020 5 18 58987 0.1102 0.4487 -0.38336 2020 5 19 58988 0.1119 0.4490 -0.38424 2020 5 20 58989 0.1137 0.4492 -0.38505 2020 5 21 58990 0.1155 0.4494 -0.38578 2020 5 22 58991 0.1172 0.4496 -0.38641 2020 5 23 58992 0.1190 0.4497 -0.38691 2020 5 24 58993 0.1208 0.4498 -0.38726 2020 5 25 58994 0.1225 0.4499 -0.38750 2020 5 26 58995 0.1243 0.4500 -0.38771 2020 5 27 58996 0.1261 0.4500 -0.38799 2020 5 28 58997 0.1279 0.4500 -0.38837 2020 5 29 58998 0.1296 0.4500 -0.38888 2020 5 30 58999 0.1314 0.4500 -0.38956 2020 5 31 59000 0.1332 0.4499 -0.39042 2020 6 1 59001 0.1350 0.4498 -0.39145 2020 6 2 59002 0.1368 0.4497 -0.39255 2020 6 3 59003 0.1385 0.4495 -0.39360 2020 6 4 59004 0.1403 0.4493 -0.39449 2020 6 5 59005 0.1421 0.4491 -0.39517 2020 6 6 59006 0.1438 0.4489 -0.39562 2020 6 7 59007 0.1456 0.4486 -0.39585 2020 6 8 59008 0.1473 0.4483 -0.39595 2020 6 9 59009 0.1491 0.4480 -0.39603 2020 6 10 59010 0.1508 0.4476 -0.39619 2020 6 11 59011 0.1526 0.4472 -0.39650 2020 6 12 59012 0.1543 0.4468 -0.39697 2020 6 13 59013 0.1560 0.4464 -0.39753 2020 6 14 59014 0.1577 0.4459 -0.39813 2020 6 15 59015 0.1594 0.4454 -0.39872 2020 6 16 59016 0.1611 0.4449 -0.39925 2020 6 17 59017 0.1628 0.4443 -0.39968 2020 6 18 59018 0.1645 0.4438 -0.40001 2020 6 19 59019 0.1661 0.4432 -0.40022 2020 6 20 59020 0.1678 0.4425 -0.40033 2020 6 21 59021 0.1694 0.4419 -0.40031 2020 6 22 59022 0.1711 0.4412 -0.40018 2020 6 23 59023 0.1727 0.4405 -0.39998 2020 6 24 59024 0.1743 0.4398 -0.39980 2020 6 25 59025 0.1759 0.4390 -0.39974 2020 6 26 59026 0.1774 0.4382 -0.39988 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) 58639 -106.65 0.18 -11.53 0.12 58640 -106.84 0.18 -11.46 0.12 58641 -106.94 0.18 -11.32 0.12 58642 -106.87 0.04 -11.24 0.09 58643 -106.66 0.04 -11.22 0.09 58644 -106.39 0.03 -11.22 0.12 58645 -106.26 0.00 -11.17 0.20 58646 -106.45 0.00 -11.10 0.20 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58639 0.035 0.073 -0.152 0.124 58640 0.019 0.073 -0.142 0.124 58641 0.004 0.073 -0.134 0.124 58642 -0.008 0.014 -0.133 0.088 58643 -0.015 0.014 -0.136 0.088 58644 -0.019 0.013 -0.143 0.116 58645 -0.020 0.001 -0.153 0.197 58646 -0.021 0.001 -0.165 0.197 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).