********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 May 2019 Vol. XXXII 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 = -0.2 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. * * * * 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 5 17 58620 0.09060 .00009 0.42114 .00009 -0.162700 0.000013 19 5 18 58621 0.09208 .00009 0.42194 .00009 -0.163787 0.000015 19 5 19 58622 0.09329 .00009 0.42283 .00009 -0.164601 0.000014 19 5 20 58623 0.09429 .00009 0.42369 .00009 -0.165202 0.000006 19 5 21 58624 0.09521 .00009 0.42432 .00009 -0.165598 0.000006 19 5 22 58625 0.09629 .00009 0.42470 .00009 -0.165842 0.000005 19 5 23 58626 0.09754 .00009 0.42509 .00009 -0.166048 0.000005 _______________________________________________________________________ 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 = 0.1200 - 0.0018 cos A + 0.0844 sin A - 0.0257 cos C - 0.0123 sin C y = 0.3620 + 0.0759 cos A - 0.0023 sin A - 0.0123 cos C + 0.0257 sin C UT1-UTC = -0.1295 - 0.00064 (MJD - 58634) - (UT2-UT1) where A = 2*pi*(MJD-58626)/365.25 and C = 2*pi*(MJD-58626)/435. TAI-UTC(MJD 58627) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58626)**0.80 S t = 0.00025 (MJD-58626)**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 5 24 58627 0.0989 0.4255 -0.16628 2019 5 25 58628 0.1003 0.4258 -0.16655 2019 5 26 58629 0.1017 0.4262 -0.16688 2019 5 27 58630 0.1032 0.4265 -0.16728 2019 5 28 58631 0.1046 0.4269 -0.16778 2019 5 29 58632 0.1060 0.4273 -0.16836 2019 5 30 58633 0.1074 0.4276 -0.16899 2019 5 31 58634 0.1089 0.4278 -0.16962 2019 6 1 58635 0.1103 0.4280 -0.17022 2019 6 2 58636 0.1118 0.4282 -0.17073 2019 6 3 58637 0.1134 0.4283 -0.17113 2019 6 4 58638 0.1149 0.4285 -0.17139 2019 6 5 58639 0.1165 0.4286 -0.17153 2019 6 6 58640 0.1180 0.4287 -0.17161 2019 6 7 58641 0.1195 0.4288 -0.17172 2019 6 8 58642 0.1210 0.4289 -0.17195 2019 6 9 58643 0.1225 0.4289 -0.17232 2019 6 10 58644 0.1241 0.4289 -0.17282 2019 6 11 58645 0.1256 0.4288 -0.17343 2019 6 12 58646 0.1272 0.4288 -0.17408 2019 6 13 58647 0.1287 0.4287 -0.17467 2019 6 14 58648 0.1302 0.4286 -0.17511 2019 6 15 58649 0.1318 0.4285 -0.17537 2019 6 16 58650 0.1333 0.4283 -0.17542 2019 6 17 58651 0.1348 0.4282 -0.17527 2019 6 18 58652 0.1363 0.4280 -0.17497 2019 6 19 58653 0.1378 0.4277 -0.17456 2019 6 20 58654 0.1393 0.4275 -0.17410 2019 6 21 58655 0.1408 0.4272 -0.17365 2019 6 22 58656 0.1423 0.4269 -0.17326 2019 6 23 58657 0.1438 0.4266 -0.17294 2019 6 24 58658 0.1453 0.4263 -0.17272 2019 6 25 58659 0.1468 0.4259 -0.17259 2019 6 26 58660 0.1482 0.4255 -0.17253 2019 6 27 58661 0.1497 0.4251 -0.17251 2019 6 28 58662 0.1511 0.4246 -0.17249 2019 6 29 58663 0.1526 0.4242 -0.17241 2019 6 30 58664 0.1540 0.4237 -0.17224 2019 7 1 58665 0.1554 0.4232 -0.17195 2019 7 2 58666 0.1568 0.4226 -0.17156 2019 7 3 58667 0.1582 0.4221 -0.17109 2019 7 4 58668 0.1596 0.4215 -0.17065 2019 7 5 58669 0.1609 0.4209 -0.17031 2019 7 6 58670 0.1623 0.4202 -0.17014 2019 7 7 58671 0.1636 0.4196 -0.17014 2019 7 8 58672 0.1650 0.4189 -0.17028 2019 7 9 58673 0.1663 0.4182 -0.17048 2019 7 10 58674 0.1676 0.4175 -0.17063 2019 7 11 58675 0.1689 0.4168 -0.17067 2019 7 12 58676 0.1702 0.4160 -0.17054 2019 7 13 58677 0.1714 0.4152 -0.17021 2019 7 14 58678 0.1727 0.4144 -0.16970 2019 7 15 58679 0.1739 0.4136 -0.16905 2019 7 16 58680 0.1751 0.4128 -0.16831 2019 7 17 58681 0.1763 0.4119 -0.16754 2019 7 18 58682 0.1775 0.4110 -0.16680 2019 7 19 58683 0.1786 0.4101 -0.16612 2019 7 20 58684 0.1797 0.4092 -0.16555 2019 7 21 58685 0.1809 0.4082 -0.16510 2019 7 22 58686 0.1820 0.4073 -0.16477 2019 7 23 58687 0.1830 0.4063 -0.16453 2019 7 24 58688 0.1841 0.4053 -0.16436 2019 7 25 58689 0.1852 0.4043 -0.16422 2019 7 26 58690 0.1862 0.4033 -0.16405 2019 7 27 58691 0.1872 0.4022 -0.16384 2019 7 28 58692 0.1882 0.4012 -0.16354 2019 7 29 58693 0.1891 0.4001 -0.16316 2019 7 30 58694 0.1900 0.3990 -0.16271 2019 7 31 58695 0.1910 0.3979 -0.16229 2019 8 1 58696 0.1919 0.3967 -0.16197 2019 8 2 58697 0.1927 0.3956 -0.16184 2019 8 3 58698 0.1936 0.3944 -0.16194 2019 8 4 58699 0.1944 0.3933 -0.16224 2019 8 5 58700 0.1952 0.3921 -0.16266 2019 8 6 58701 0.1960 0.3909 -0.16309 2019 8 7 58702 0.1967 0.3896 -0.16342 2019 8 8 58703 0.1975 0.3884 -0.16359 2019 8 9 58704 0.1982 0.3872 -0.16355 2019 8 10 58705 0.1989 0.3859 -0.16334 2019 8 11 58706 0.1995 0.3847 -0.16299 2019 8 12 58707 0.2001 0.3834 -0.16255 2019 8 13 58708 0.2007 0.3821 -0.16209 2019 8 14 58709 0.2013 0.3808 -0.16166 2019 8 15 58710 0.2019 0.3795 -0.16131 2019 8 16 58711 0.2024 0.3782 -0.16106 2019 8 17 58712 0.2029 0.3769 -0.16093 2019 8 18 58713 0.2034 0.3755 -0.16092 2019 8 19 58714 0.2038 0.3742 -0.16101 2019 8 20 58715 0.2043 0.3728 -0.16116 2019 8 21 58716 0.2047 0.3715 -0.16134 2019 8 22 58717 0.2050 0.3701 -0.16152 2019 8 23 58718 0.2054 0.3687 -0.16164 2019 8 24 58719 0.2057 0.3674 -0.16170 2019 8 25 58720 0.2060 0.3660 -0.16167 2019 8 26 58721 0.2063 0.3646 -0.16159 2019 8 27 58722 0.2065 0.3632 -0.16150 2019 8 28 58723 0.2067 0.3618 -0.16148 2019 8 29 58724 0.2069 0.3604 -0.16163 2019 8 30 58725 0.2070 0.3590 -0.16202 2019 8 31 58726 0.2072 0.3576 -0.16267 2019 9 1 58727 0.2073 0.3562 -0.16352 2019 9 2 58728 0.2073 0.3547 -0.16444 2019 9 3 58729 0.2074 0.3533 -0.16532 2019 9 4 58730 0.2074 0.3519 -0.16605 2019 9 5 58731 0.2074 0.3505 -0.16657 2019 9 6 58732 0.2073 0.3491 -0.16689 2019 9 7 58733 0.2073 0.3477 -0.16704 2019 9 8 58734 0.2072 0.3462 -0.16709 2019 9 9 58735 0.2070 0.3448 -0.16707 2019 9 10 58736 0.2069 0.3434 -0.16707 2019 9 11 58737 0.2067 0.3420 -0.16713 2019 9 12 58738 0.2065 0.3406 -0.16731 2019 9 13 58739 0.2063 0.3392 -0.16761 2019 9 14 58740 0.2060 0.3378 -0.16803 2019 9 15 58741 0.2057 0.3363 -0.16856 2019 9 16 58742 0.2054 0.3349 -0.16918 2019 9 17 58743 0.2050 0.3336 -0.16982 2019 9 18 58744 0.2047 0.3322 -0.17046 2019 9 19 58745 0.2043 0.3308 -0.17105 2019 9 20 58746 0.2038 0.3294 -0.17157 2019 9 21 58747 0.2034 0.3280 -0.17200 2019 9 22 58748 0.2029 0.3267 -0.17236 2019 9 23 58749 0.2024 0.3253 -0.17268 2019 9 24 58750 0.2019 0.3239 -0.17306 2019 9 25 58751 0.2013 0.3226 -0.17356 2019 9 26 58752 0.2007 0.3213 -0.17428 2019 9 27 58753 0.2001 0.3199 -0.17526 2019 9 28 58754 0.1995 0.3186 -0.17649 2019 9 29 58755 0.1988 0.3173 -0.17788 2019 9 30 58756 0.1981 0.3160 -0.17929 2019 10 1 58757 0.1974 0.3147 -0.18059 2019 10 2 58758 0.1966 0.3135 -0.18168 2019 10 3 58759 0.1959 0.3122 -0.18255 2019 10 4 58760 0.1951 0.3109 -0.18320 2019 10 5 58761 0.1943 0.3097 -0.18371 2019 10 6 58762 0.1934 0.3085 -0.18414 2019 10 7 58763 0.1926 0.3073 -0.18456 2019 10 8 58764 0.1917 0.3061 -0.18503 2019 10 9 58765 0.1908 0.3049 -0.18559 2019 10 10 58766 0.1898 0.3037 -0.18627 2019 10 11 58767 0.1889 0.3025 -0.18707 2019 10 12 58768 0.1879 0.3014 -0.18798 2019 10 13 58769 0.1869 0.3003 -0.18898 2019 10 14 58770 0.1859 0.2991 -0.19001 2019 10 15 58771 0.1848 0.2980 -0.19104 2019 10 16 58772 0.1838 0.2970 -0.19202 2019 10 17 58773 0.1827 0.2959 -0.19291 2019 10 18 58774 0.1816 0.2949 -0.19369 2019 10 19 58775 0.1804 0.2938 -0.19437 2019 10 20 58776 0.1793 0.2928 -0.19499 2019 10 21 58777 0.1781 0.2918 -0.19562 2019 10 22 58778 0.1769 0.2908 -0.19633 2019 10 23 58779 0.1757 0.2899 -0.19720 2019 10 24 58780 0.1745 0.2889 -0.19831 2019 10 25 58781 0.1732 0.2880 -0.19965 2019 10 26 58782 0.1720 0.2871 -0.20120 2019 10 27 58783 0.1707 0.2863 -0.20284 2019 10 28 58784 0.1694 0.2854 -0.20443 2019 10 29 58785 0.1681 0.2846 -0.20587 2019 10 30 58786 0.1667 0.2837 -0.20708 2019 10 31 58787 0.1654 0.2829 -0.20806 2019 11 1 58788 0.1640 0.2822 -0.20883 2019 11 2 58789 0.1626 0.2814 -0.20948 2019 11 3 58790 0.1613 0.2807 -0.21008 2019 11 4 58791 0.1598 0.2800 -0.21069 2019 11 5 58792 0.1584 0.2793 -0.21137 2019 11 6 58793 0.1570 0.2786 -0.21215 2019 11 7 58794 0.1555 0.2780 -0.21303 2019 11 8 58795 0.1541 0.2774 -0.21403 2019 11 9 58796 0.1526 0.2768 -0.21510 2019 11 10 58797 0.1511 0.2762 -0.21622 2019 11 11 58798 0.1496 0.2757 -0.21734 2019 11 12 58799 0.1481 0.2751 -0.21841 2019 11 13 58800 0.1466 0.2746 -0.21939 2019 11 14 58801 0.1451 0.2742 -0.22025 2019 11 15 58802 0.1435 0.2737 -0.22099 2019 11 16 58803 0.1420 0.2733 -0.22163 2019 11 17 58804 0.1404 0.2729 -0.22225 2019 11 18 58805 0.1389 0.2725 -0.22291 2019 11 19 58806 0.1373 0.2722 -0.22370 2019 11 20 58807 0.1357 0.2718 -0.22468 2019 11 21 58808 0.1341 0.2715 -0.22588 2019 11 22 58809 0.1325 0.2713 -0.22728 2019 11 23 58810 0.1309 0.2710 -0.22882 2019 11 24 58811 0.1293 0.2708 -0.23038 2019 11 25 58812 0.1277 0.2706 -0.23185 2019 11 26 58813 0.1261 0.2704 -0.23315 2019 11 27 58814 0.1245 0.2703 -0.23423 2019 11 28 58815 0.1229 0.2702 -0.23510 2019 11 29 58816 0.1213 0.2701 -0.23580 2019 11 30 58817 0.1197 0.2700 -0.23641 2019 12 1 58818 0.1180 0.2699 -0.23698 2019 12 2 58819 0.1164 0.2699 -0.23757 2019 12 3 58820 0.1148 0.2699 -0.23822 2019 12 4 58821 0.1132 0.2700 -0.23895 2019 12 5 58822 0.1115 0.2700 -0.23978 2019 12 6 58823 0.1099 0.2701 -0.24070 2019 12 7 58824 0.1083 0.2702 -0.24168 2019 12 8 58825 0.1067 0.2704 -0.24269 2019 12 9 58826 0.1051 0.2706 -0.24369 2019 12 10 58827 0.1034 0.2708 -0.24463 2019 12 11 58828 0.1018 0.2710 -0.24547 2019 12 12 58829 0.1002 0.2712 -0.24621 2019 12 13 58830 0.0986 0.2715 -0.24684 2019 12 14 58831 0.0970 0.2718 -0.24741 2019 12 15 58832 0.0954 0.2721 -0.24797 2019 12 16 58833 0.0939 0.2725 -0.24861 2019 12 17 58834 0.0923 0.2728 -0.24940 2019 12 18 58835 0.0907 0.2733 -0.25034 2019 12 19 58836 0.0891 0.2737 -0.25144 2019 12 20 58837 0.0876 0.2741 -0.25262 2019 12 21 58838 0.0860 0.2746 -0.25378 2019 12 22 58839 0.0845 0.2751 -0.25482 2019 12 23 58840 0.0830 0.2756 -0.25567 2019 12 24 58841 0.0814 0.2762 -0.25629 2019 12 25 58842 0.0799 0.2768 -0.25671 2019 12 26 58843 0.0784 0.2774 -0.25699 2019 12 27 58844 0.0769 0.2780 -0.25722 2019 12 28 58845 0.0755 0.2787 -0.25747 2019 12 29 58846 0.0740 0.2793 -0.25777 2019 12 30 58847 0.0725 0.2800 -0.25817 2019 12 31 58848 0.0711 0.2808 -0.25870 2020 1 1 58849 0.0697 0.2815 -0.25937 2020 1 2 58850 0.0683 0.2823 -0.26013 2020 1 3 58851 0.0669 0.2831 -0.26094 2020 1 4 58852 0.0655 0.2839 -0.26177 2020 1 5 58853 0.0641 0.2848 -0.26255 2020 1 6 58854 0.0628 0.2856 -0.26324 2020 1 7 58855 0.0614 0.2865 -0.26379 2020 1 8 58856 0.0601 0.2874 -0.26419 2020 1 9 58857 0.0588 0.2883 -0.26443 2020 1 10 58858 0.0575 0.2893 -0.26460 2020 1 11 58859 0.0563 0.2903 -0.26479 2020 1 12 58860 0.0550 0.2913 -0.26506 2020 1 13 58861 0.0538 0.2923 -0.26550 2020 1 14 58862 0.0526 0.2933 -0.26621 2020 1 15 58863 0.0514 0.2944 -0.26720 2020 1 16 58864 0.0502 0.2954 -0.26831 2020 1 17 58865 0.0491 0.2965 -0.26949 2020 1 18 58866 0.0479 0.2977 -0.27061 2020 1 19 58867 0.0468 0.2988 -0.27160 2020 1 20 58868 0.0457 0.2999 -0.27240 2020 1 21 58869 0.0447 0.3011 -0.27304 2020 1 22 58870 0.0436 0.3023 -0.27351 2020 1 23 58871 0.0426 0.3035 -0.27388 2020 1 24 58872 0.0416 0.3047 -0.27425 2020 1 25 58873 0.0406 0.3060 -0.27458 2020 1 26 58874 0.0397 0.3072 -0.27497 2020 1 27 58875 0.0388 0.3085 -0.27548 2020 1 28 58876 0.0379 0.3098 -0.27612 2020 1 29 58877 0.0370 0.3111 -0.27687 2020 1 30 58878 0.0361 0.3124 -0.27767 2020 1 31 58879 0.0353 0.3137 -0.27851 2020 2 1 58880 0.0345 0.3151 -0.27932 2020 2 2 58881 0.0337 0.3164 -0.28005 2020 2 3 58882 0.0330 0.3178 -0.28075 2020 2 4 58883 0.0322 0.3192 -0.28133 2020 2 5 58884 0.0315 0.3206 -0.28178 2020 2 6 58885 0.0309 0.3220 -0.28212 2020 2 7 58886 0.0302 0.3234 -0.28246 2020 2 8 58887 0.0296 0.3249 -0.28287 2020 2 9 58888 0.0290 0.3263 -0.28338 2020 2 10 58889 0.0284 0.3278 -0.28416 2020 2 11 58890 0.0279 0.3292 -0.28521 2020 2 12 58891 0.0274 0.3307 -0.28643 2020 2 13 58892 0.0269 0.3322 -0.28776 2020 2 14 58893 0.0264 0.3337 -0.28906 2020 2 15 58894 0.0260 0.3352 -0.29026 2020 2 16 58895 0.0256 0.3367 -0.29130 2020 2 17 58896 0.0253 0.3382 -0.29216 2020 2 18 58897 0.0249 0.3397 -0.29284 2020 2 19 58898 0.0246 0.3412 -0.29335 2020 2 20 58899 0.0243 0.3428 -0.29377 2020 2 21 58900 0.0241 0.3443 -0.29419 2020 2 22 58901 0.0238 0.3459 -0.29468 2020 2 23 58902 0.0237 0.3474 -0.29526 2020 2 24 58903 0.0235 0.3490 -0.29595 2020 2 25 58904 0.0233 0.3505 -0.29676 2020 2 26 58905 0.0232 0.3521 -0.29767 2020 2 27 58906 0.0232 0.3537 -0.29868 2020 2 28 58907 0.0231 0.3552 -0.29974 2020 2 29 58908 0.0231 0.3568 -0.30075 2020 3 1 58909 0.0231 0.3584 -0.30168 2020 3 2 58910 0.0232 0.3599 -0.30259 2020 3 3 58911 0.0232 0.3615 -0.30349 2020 3 4 58912 0.0233 0.3631 -0.30426 2020 3 5 58913 0.0235 0.3646 -0.30493 2020 3 6 58914 0.0236 0.3662 -0.30568 2020 3 7 58915 0.0238 0.3678 -0.30666 2020 3 8 58916 0.0240 0.3693 -0.30787 2020 3 9 58917 0.0243 0.3709 -0.30937 2020 3 10 58918 0.0246 0.3725 -0.31113 2020 3 11 58919 0.0249 0.3740 -0.31302 2020 3 12 58920 0.0252 0.3756 -0.31491 2020 3 13 58921 0.0256 0.3771 -0.31672 2020 3 14 58922 0.0260 0.3786 -0.31831 2020 3 15 58923 0.0264 0.3802 -0.31966 2020 3 16 58924 0.0269 0.3817 -0.32078 2020 3 17 58925 0.0274 0.3832 -0.32179 2020 3 18 58926 0.0279 0.3847 -0.32279 2020 3 19 58927 0.0284 0.3863 -0.32380 2020 3 20 58928 0.0290 0.3878 -0.32483 2020 3 21 58929 0.0296 0.3893 -0.32592 2020 3 22 58930 0.0302 0.3907 -0.32710 2020 3 23 58931 0.0309 0.3922 -0.32839 2020 3 24 58932 0.0316 0.3937 -0.32978 2020 3 25 58933 0.0323 0.3951 -0.33123 2020 3 26 58934 0.0331 0.3966 -0.33270 2020 3 27 58935 0.0338 0.3980 -0.33418 2020 3 28 58936 0.0346 0.3994 -0.33562 2020 3 29 58937 0.0354 0.4008 -0.33693 2020 3 30 58938 0.0363 0.4022 -0.33812 2020 3 31 58939 0.0372 0.4036 -0.33923 2020 4 1 58940 0.0381 0.4050 -0.34033 2020 4 2 58941 0.0390 0.4064 -0.34148 2020 4 3 58942 0.0400 0.4077 -0.34278 2020 4 4 58943 0.0410 0.4090 -0.34426 2020 4 5 58944 0.0420 0.4103 -0.34596 2020 4 6 58945 0.0430 0.4116 -0.34790 2020 4 7 58946 0.0441 0.4129 -0.35002 2020 4 8 58947 0.0451 0.4142 -0.35220 2020 4 9 58948 0.0463 0.4154 -0.35433 2020 4 10 58949 0.0474 0.4167 -0.35629 2020 4 11 58950 0.0485 0.4179 -0.35802 2020 4 12 58951 0.0497 0.4191 -0.35949 2020 4 13 58952 0.0509 0.4203 -0.36071 2020 4 14 58953 0.0522 0.4214 -0.36174 2020 4 15 58954 0.0534 0.4226 -0.36268 2020 4 16 58955 0.0547 0.4237 -0.36360 2020 4 17 58956 0.0560 0.4248 -0.36459 2020 4 18 58957 0.0573 0.4259 -0.36570 2020 4 19 58958 0.0586 0.4270 -0.36695 2020 4 20 58959 0.0600 0.4280 -0.36828 2020 4 21 58960 0.0613 0.4290 -0.36957 2020 4 22 58961 0.0627 0.4300 -0.37082 2020 4 23 58962 0.0641 0.4310 -0.37195 2020 4 24 58963 0.0656 0.4320 -0.37295 2020 4 25 58964 0.0670 0.4329 -0.37378 2020 4 26 58965 0.0685 0.4338 -0.37438 2020 4 27 58966 0.0700 0.4347 -0.37484 2020 4 28 58967 0.0715 0.4356 -0.37519 2020 4 29 58968 0.0730 0.4364 -0.37552 2020 4 30 58969 0.0745 0.4372 -0.37591 2020 5 1 58970 0.0761 0.4380 -0.37645 2020 5 2 58971 0.0777 0.4388 -0.37720 2020 5 3 58972 0.0792 0.4395 -0.37811 2020 5 4 58973 0.0808 0.4402 -0.37922 2020 5 5 58974 0.0824 0.4409 -0.38053 2020 5 6 58975 0.0841 0.4416 -0.38185 2020 5 7 58976 0.0857 0.4423 -0.38313 2020 5 8 58977 0.0874 0.4429 -0.38424 2020 5 9 58978 0.0890 0.4435 -0.38513 2020 5 10 58979 0.0907 0.4440 -0.38582 2020 5 11 58980 0.0924 0.4446 -0.38638 2020 5 12 58981 0.0941 0.4451 -0.38683 2020 5 13 58982 0.0958 0.4456 -0.38727 2020 5 14 58983 0.0975 0.4460 -0.38779 2020 5 15 58984 0.0992 0.4465 -0.38842 2020 5 16 58985 0.1010 0.4469 -0.38919 2020 5 17 58986 0.1027 0.4472 -0.39008 2020 5 18 58987 0.1045 0.4476 -0.39103 2020 5 19 58988 0.1062 0.4479 -0.39202 2020 5 20 58989 0.1080 0.4482 -0.39303 2020 5 21 58990 0.1098 0.4485 -0.39399 2020 5 22 58991 0.1115 0.4487 -0.39478 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) 58600 -104.57 0.13 -11.57 0.15 58601 -104.10 0.16 -11.48 0.19 58602 -103.63 0.16 -11.40 0.19 58603 -103.44 0.56 -11.32 0.24 58604 -103.58 0.42 -11.17 0.23 58605 -103.89 0.42 -11.00 0.23 58606 -104.18 0.42 -10.90 0.23 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58600 0.043 0.053 -0.212 0.153 58601 0.049 0.063 -0.221 0.193 58602 0.061 0.063 -0.226 0.193 58603 0.074 0.222 -0.229 0.241 58604 0.085 0.167 -0.230 0.235 58605 0.093 0.167 -0.229 0.235 58606 0.100 0.167 -0.228 0.235 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).