********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 April 2019 Vol. XXXII No. 015 ______________________________________________________________________ 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 = -0.1 seconds beginning 17 Jan 2019 at 0000 UTC = -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 4 5 58578 0.05136 .00009 0.38904 .00009 -0.123757 0.000017 19 4 6 58579 0.05162 .00009 0.39016 .00009 -0.125031 0.000025 19 4 7 58580 0.05178 .00009 0.39131 .00009 -0.126313 0.000024 19 4 8 58581 0.05189 .00009 0.39235 .00009 -0.127544 0.000022 19 4 9 58582 0.05214 .00009 0.39332 .00009 -0.128727 0.000022 19 4 10 58583 0.05257 .00009 0.39427 .00009 -0.129761 0.000021 19 4 11 58584 0.05312 .00009 0.39513 .00009 -0.130664 0.000019 _______________________________________________________________________ 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 = 0.1169 - 0.0653 cos A + 0.0716 sin A - 0.0010 cos C - 0.0277 sin C y = 0.3494 + 0.0656 cos A + 0.0588 sin A - 0.0277 cos C + 0.0010 sin C UT1-UTC = -0.1077 - 0.00065 (MJD - 58592) - (UT2-UT1) where A = 2*pi*(MJD-58584)/365.25 and C = 2*pi*(MJD-58584)/435. TAI-UTC(MJD 58585) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58584)**0.80 S t = 0.00025 (MJD-58584)**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 4 12 58585 0.0538 0.3960 -0.13146 2019 4 13 58586 0.0546 0.3968 -0.13226 2019 4 14 58587 0.0554 0.3977 -0.13314 2019 4 15 58588 0.0563 0.3986 -0.13420 2019 4 16 58589 0.0572 0.3996 -0.13547 2019 4 17 58590 0.0582 0.4005 -0.13691 2019 4 18 58591 0.0591 0.4015 -0.13843 2019 4 19 58592 0.0601 0.4025 -0.13993 2019 4 20 58593 0.0612 0.4034 -0.14132 2019 4 21 58594 0.0623 0.4043 -0.14256 2019 4 22 58595 0.0634 0.4052 -0.14359 2019 4 23 58596 0.0645 0.4061 -0.14441 2019 4 24 58597 0.0657 0.4070 -0.14509 2019 4 25 58598 0.0668 0.4079 -0.14569 2019 4 26 58599 0.0680 0.4088 -0.14625 2019 4 27 58600 0.0692 0.4097 -0.14682 2019 4 28 58601 0.0704 0.4105 -0.14745 2019 4 29 58602 0.0717 0.4114 -0.14818 2019 4 30 58603 0.0729 0.4122 -0.14900 2019 5 1 58604 0.0742 0.4130 -0.14992 2019 5 2 58605 0.0755 0.4138 -0.15092 2019 5 3 58606 0.0768 0.4146 -0.15195 2019 5 4 58607 0.0781 0.4153 -0.15298 2019 5 5 58608 0.0794 0.4161 -0.15393 2019 5 6 58609 0.0807 0.4168 -0.15477 2019 5 7 58610 0.0821 0.4175 -0.15547 2019 5 8 58611 0.0834 0.4181 -0.15603 2019 5 9 58612 0.0848 0.4188 -0.15649 2019 5 10 58613 0.0862 0.4194 -0.15692 2019 5 11 58614 0.0876 0.4200 -0.15739 2019 5 12 58615 0.0890 0.4205 -0.15798 2019 5 13 58616 0.0905 0.4211 -0.15873 2019 5 14 58617 0.0919 0.4216 -0.15965 2019 5 15 58618 0.0933 0.4221 -0.16069 2019 5 16 58619 0.0948 0.4226 -0.16176 2019 5 17 58620 0.0963 0.4230 -0.16277 2019 5 18 58621 0.0978 0.4234 -0.16364 2019 5 19 58622 0.0993 0.4238 -0.16432 2019 5 20 58623 0.1008 0.4242 -0.16479 2019 5 21 58624 0.1023 0.4246 -0.16510 2019 5 22 58625 0.1038 0.4249 -0.16529 2019 5 23 58626 0.1053 0.4252 -0.16541 2019 5 24 58627 0.1068 0.4255 -0.16554 2019 5 25 58628 0.1084 0.4258 -0.16571 2019 5 26 58629 0.1099 0.4260 -0.16596 2019 5 27 58630 0.1115 0.4262 -0.16632 2019 5 28 58631 0.1130 0.4264 -0.16677 2019 5 29 58632 0.1146 0.4265 -0.16732 2019 5 30 58633 0.1161 0.4267 -0.16793 2019 5 31 58634 0.1177 0.4268 -0.16857 2019 6 1 58635 0.1193 0.4269 -0.16918 2019 6 2 58636 0.1208 0.4269 -0.16970 2019 6 3 58637 0.1224 0.4270 -0.17010 2019 6 4 58638 0.1240 0.4270 -0.17036 2019 6 5 58639 0.1256 0.4270 -0.17051 2019 6 6 58640 0.1271 0.4269 -0.17061 2019 6 7 58641 0.1287 0.4269 -0.17074 2019 6 8 58642 0.1303 0.4268 -0.17097 2019 6 9 58643 0.1318 0.4267 -0.17135 2019 6 10 58644 0.1334 0.4265 -0.17188 2019 6 11 58645 0.1350 0.4264 -0.17253 2019 6 12 58646 0.1365 0.4262 -0.17323 2019 6 13 58647 0.1381 0.4260 -0.17388 2019 6 14 58648 0.1396 0.4257 -0.17440 2019 6 15 58649 0.1412 0.4255 -0.17474 2019 6 16 58650 0.1427 0.4252 -0.17487 2019 6 17 58651 0.1443 0.4249 -0.17480 2019 6 18 58652 0.1458 0.4245 -0.17458 2019 6 19 58653 0.1473 0.4242 -0.17427 2019 6 20 58654 0.1489 0.4238 -0.17393 2019 6 21 58655 0.1504 0.4234 -0.17361 2019 6 22 58656 0.1519 0.4230 -0.17335 2019 6 23 58657 0.1534 0.4225 -0.17319 2019 6 24 58658 0.1549 0.4220 -0.17313 2019 6 25 58659 0.1564 0.4215 -0.17315 2019 6 26 58660 0.1578 0.4210 -0.17324 2019 6 27 58661 0.1593 0.4204 -0.17335 2019 6 28 58662 0.1607 0.4199 -0.17346 2019 6 29 58663 0.1622 0.4193 -0.17352 2019 6 30 58664 0.1636 0.4187 -0.17348 2019 7 1 58665 0.1650 0.4180 -0.17333 2019 7 2 58666 0.1664 0.4174 -0.17307 2019 7 3 58667 0.1678 0.4167 -0.17275 2019 7 4 58668 0.1692 0.4160 -0.17245 2019 7 5 58669 0.1706 0.4152 -0.17226 2019 7 6 58670 0.1719 0.4145 -0.17224 2019 7 7 58671 0.1733 0.4137 -0.17240 2019 7 8 58672 0.1746 0.4129 -0.17270 2019 7 9 58673 0.1759 0.4121 -0.17305 2019 7 10 58674 0.1772 0.4113 -0.17336 2019 7 11 58675 0.1785 0.4104 -0.17355 2019 7 12 58676 0.1797 0.4095 -0.17358 2019 7 13 58677 0.1810 0.4086 -0.17341 2019 7 14 58678 0.1822 0.4077 -0.17306 2019 7 15 58679 0.1834 0.4068 -0.17258 2019 7 16 58680 0.1846 0.4058 -0.17201 2019 7 17 58681 0.1858 0.4048 -0.17140 2019 7 18 58682 0.1869 0.4039 -0.17082 2019 7 19 58683 0.1880 0.4028 -0.17031 2019 7 20 58684 0.1892 0.4018 -0.16989 2019 7 21 58685 0.1902 0.4008 -0.16958 2019 7 22 58686 0.1913 0.3997 -0.16937 2019 7 23 58687 0.1924 0.3986 -0.16925 2019 7 24 58688 0.1934 0.3975 -0.16918 2019 7 25 58689 0.1944 0.3964 -0.16912 2019 7 26 58690 0.1954 0.3953 -0.16904 2019 7 27 58691 0.1964 0.3941 -0.16890 2019 7 28 58692 0.1973 0.3930 -0.16867 2019 7 29 58693 0.1982 0.3918 -0.16832 2019 7 30 58694 0.1991 0.3906 -0.16792 2019 7 31 58695 0.2000 0.3894 -0.16752 2019 8 1 58696 0.2009 0.3882 -0.16722 2019 8 2 58697 0.2017 0.3870 -0.16711 2019 8 3 58698 0.2025 0.3857 -0.16722 2019 8 4 58699 0.2033 0.3845 -0.16752 2019 8 5 58700 0.2040 0.3832 -0.16794 2019 8 6 58701 0.2048 0.3819 -0.16836 2019 8 7 58702 0.2055 0.3806 -0.16868 2019 8 8 58703 0.2061 0.3793 -0.16883 2019 8 9 58704 0.2068 0.3780 -0.16879 2019 8 10 58705 0.2074 0.3767 -0.16857 2019 8 11 58706 0.2080 0.3753 -0.16821 2019 8 12 58707 0.2086 0.3740 -0.16776 2019 8 13 58708 0.2092 0.3726 -0.16728 2019 8 14 58709 0.2097 0.3713 -0.16684 2019 8 15 58710 0.2102 0.3699 -0.16646 2019 8 16 58711 0.2106 0.3685 -0.16620 2019 8 17 58712 0.2111 0.3671 -0.16605 2019 8 18 58713 0.2115 0.3658 -0.16603 2019 8 19 58714 0.2119 0.3644 -0.16611 2019 8 20 58715 0.2123 0.3629 -0.16626 2019 8 21 58716 0.2126 0.3615 -0.16643 2019 8 22 58717 0.2129 0.3601 -0.16660 2019 8 23 58718 0.2132 0.3587 -0.16672 2019 8 24 58719 0.2134 0.3573 -0.16677 2019 8 25 58720 0.2136 0.3558 -0.16674 2019 8 26 58721 0.2138 0.3544 -0.16665 2019 8 27 58722 0.2140 0.3530 -0.16656 2019 8 28 58723 0.2141 0.3515 -0.16654 2019 8 29 58724 0.2143 0.3501 -0.16669 2019 8 30 58725 0.2143 0.3486 -0.16709 2019 8 31 58726 0.2144 0.3472 -0.16774 2019 9 1 58727 0.2144 0.3458 -0.16858 2019 9 2 58728 0.2144 0.3443 -0.16950 2019 9 3 58729 0.2144 0.3429 -0.17037 2019 9 4 58730 0.2143 0.3414 -0.17108 2019 9 5 58731 0.2142 0.3400 -0.17159 2019 9 6 58732 0.2141 0.3385 -0.17189 2019 9 7 58733 0.2139 0.3371 -0.17203 2019 9 8 58734 0.2138 0.3357 -0.17206 2019 9 9 58735 0.2136 0.3342 -0.17206 2019 9 10 58736 0.2133 0.3328 -0.17208 2019 9 11 58737 0.2131 0.3314 -0.17218 2019 9 12 58738 0.2128 0.3299 -0.17238 2019 9 13 58739 0.2125 0.3285 -0.17271 2019 9 14 58740 0.2121 0.3271 -0.17316 2019 9 15 58741 0.2117 0.3257 -0.17373 2019 9 16 58742 0.2113 0.3243 -0.17438 2019 9 17 58743 0.2109 0.3229 -0.17507 2019 9 18 58744 0.2105 0.3215 -0.17576 2019 9 19 58745 0.2100 0.3201 -0.17639 2019 9 20 58746 0.2095 0.3187 -0.17695 2019 9 21 58747 0.2089 0.3174 -0.17743 2019 9 22 58748 0.2083 0.3160 -0.17784 2019 9 23 58749 0.2078 0.3146 -0.17822 2019 9 24 58750 0.2071 0.3133 -0.17865 2019 9 25 58751 0.2065 0.3120 -0.17921 2019 9 26 58752 0.2058 0.3107 -0.17998 2019 9 27 58753 0.2051 0.3093 -0.18102 2019 9 28 58754 0.2044 0.3080 -0.18231 2019 9 29 58755 0.2036 0.3068 -0.18375 2019 9 30 58756 0.2028 0.3055 -0.18521 2019 10 1 58757 0.2020 0.3042 -0.18657 2019 10 2 58758 0.2012 0.3030 -0.18773 2019 10 3 58759 0.2004 0.3017 -0.18866 2019 10 4 58760 0.1995 0.3005 -0.18937 2019 10 5 58761 0.1986 0.2993 -0.18994 2019 10 6 58762 0.1976 0.2981 -0.19043 2019 10 7 58763 0.1967 0.2969 -0.19092 2019 10 8 58764 0.1957 0.2957 -0.19145 2019 10 9 58765 0.1947 0.2946 -0.19207 2019 10 10 58766 0.1937 0.2935 -0.19280 2019 10 11 58767 0.1926 0.2923 -0.19366 2019 10 12 58768 0.1916 0.2912 -0.19462 2019 10 13 58769 0.1905 0.2901 -0.19565 2019 10 14 58770 0.1894 0.2891 -0.19673 2019 10 15 58771 0.1882 0.2880 -0.19779 2019 10 16 58772 0.1871 0.2870 -0.19880 2019 10 17 58773 0.1859 0.2860 -0.19971 2019 10 18 58774 0.1847 0.2850 -0.20052 2019 10 19 58775 0.1835 0.2840 -0.20124 2019 10 20 58776 0.1822 0.2830 -0.20191 2019 10 21 58777 0.1810 0.2821 -0.20259 2019 10 22 58778 0.1797 0.2812 -0.20334 2019 10 23 58779 0.1784 0.2803 -0.20425 2019 10 24 58780 0.1771 0.2794 -0.20538 2019 10 25 58781 0.1758 0.2786 -0.20673 2019 10 26 58782 0.1744 0.2777 -0.20826 2019 10 27 58783 0.1731 0.2769 -0.20987 2019 10 28 58784 0.1717 0.2761 -0.21144 2019 10 29 58785 0.1703 0.2753 -0.21284 2019 10 30 58786 0.1689 0.2746 -0.21402 2019 10 31 58787 0.1674 0.2739 -0.21497 2019 11 1 58788 0.1660 0.2732 -0.21573 2019 11 2 58789 0.1645 0.2725 -0.21638 2019 11 3 58790 0.1630 0.2718 -0.21700 2019 11 4 58791 0.1616 0.2712 -0.21764 2019 11 5 58792 0.1600 0.2706 -0.21834 2019 11 6 58793 0.1585 0.2700 -0.21914 2019 11 7 58794 0.1570 0.2694 -0.22003 2019 11 8 58795 0.1555 0.2689 -0.22102 2019 11 9 58796 0.1539 0.2684 -0.22207 2019 11 10 58797 0.1524 0.2679 -0.22315 2019 11 11 58798 0.1508 0.2674 -0.22421 2019 11 12 58799 0.1492 0.2670 -0.22520 2019 11 13 58800 0.1476 0.2666 -0.22608 2019 11 14 58801 0.1460 0.2662 -0.22681 2019 11 15 58802 0.1444 0.2658 -0.22741 2019 11 16 58803 0.1428 0.2655 -0.22789 2019 11 17 58804 0.1411 0.2652 -0.22831 2019 11 18 58805 0.1395 0.2649 -0.22878 2019 11 19 58806 0.1379 0.2646 -0.22938 2019 11 20 58807 0.1362 0.2644 -0.23016 2019 11 21 58808 0.1346 0.2642 -0.23117 2019 11 22 58809 0.1329 0.2640 -0.23239 2019 11 23 58810 0.1313 0.2638 -0.23377 2019 11 24 58811 0.1296 0.2637 -0.23520 2019 11 25 58812 0.1279 0.2636 -0.23658 2019 11 26 58813 0.1262 0.2635 -0.23775 2019 11 27 58814 0.1246 0.2634 -0.23865 2019 11 28 58815 0.1229 0.2634 -0.23929 2019 11 29 58816 0.1212 0.2634 -0.23974 2019 11 30 58817 0.1195 0.2635 -0.24012 2019 12 1 58818 0.1178 0.2635 -0.24046 2019 12 2 58819 0.1162 0.2636 -0.24083 2019 12 3 58820 0.1145 0.2637 -0.24129 2019 12 4 58821 0.1128 0.2638 -0.24185 2019 12 5 58822 0.1111 0.2640 -0.24256 2019 12 6 58823 0.1094 0.2642 -0.24339 2019 12 7 58824 0.1078 0.2644 -0.24424 2019 12 8 58825 0.1061 0.2646 -0.24511 2019 12 9 58826 0.1044 0.2649 -0.24602 2019 12 10 58827 0.1028 0.2652 -0.24692 2019 12 11 58828 0.1011 0.2655 -0.24767 2019 12 12 58829 0.0995 0.2659 -0.24824 2019 12 13 58830 0.0978 0.2662 -0.24873 2019 12 14 58831 0.0962 0.2666 -0.24925 2019 12 15 58832 0.0945 0.2671 -0.24981 2019 12 16 58833 0.0929 0.2675 -0.25046 2019 12 17 58834 0.0913 0.2680 -0.25130 2019 12 18 58835 0.0897 0.2685 -0.25230 2019 12 19 58836 0.0881 0.2690 -0.25346 2019 12 20 58837 0.0865 0.2696 -0.25477 2019 12 21 58838 0.0849 0.2702 -0.25610 2019 12 22 58839 0.0833 0.2708 -0.25737 2019 12 23 58840 0.0818 0.2714 -0.25848 2019 12 24 58841 0.0802 0.2720 -0.25944 2019 12 25 58842 0.0787 0.2727 -0.26026 2019 12 26 58843 0.0771 0.2734 -0.26094 2019 12 27 58844 0.0756 0.2742 -0.26147 2019 12 28 58845 0.0741 0.2749 -0.26195 2019 12 29 58846 0.0726 0.2757 -0.26244 2019 12 30 58847 0.0711 0.2765 -0.26299 2019 12 31 58848 0.0697 0.2773 -0.26366 2020 1 1 58849 0.0682 0.2782 -0.26442 2020 1 2 58850 0.0668 0.2790 -0.26529 2020 1 3 58851 0.0654 0.2799 -0.26627 2020 1 4 58852 0.0640 0.2808 -0.26730 2020 1 5 58853 0.0626 0.2818 -0.26831 2020 1 6 58854 0.0612 0.2827 -0.26925 2020 1 7 58855 0.0599 0.2837 -0.27013 2020 1 8 58856 0.0586 0.2847 -0.27095 2020 1 9 58857 0.0573 0.2857 -0.27173 2020 1 10 58858 0.0560 0.2868 -0.27251 2020 1 11 58859 0.0547 0.2879 -0.27329 2020 1 12 58860 0.0534 0.2889 -0.27414 2020 1 13 58861 0.0522 0.2900 -0.27513 2020 1 14 58862 0.0510 0.2912 -0.27628 2020 1 15 58863 0.0498 0.2923 -0.27760 2020 1 16 58864 0.0486 0.2935 -0.27904 2020 1 17 58865 0.0475 0.2947 -0.28054 2020 1 18 58866 0.0464 0.2959 -0.28201 2020 1 19 58867 0.0452 0.2971 -0.28333 2020 1 20 58868 0.0442 0.2983 -0.28443 2020 1 21 58869 0.0431 0.2996 -0.28527 2020 1 22 58870 0.0421 0.3009 -0.28591 2020 1 23 58871 0.0411 0.3021 -0.28641 2020 1 24 58872 0.0401 0.3035 -0.28687 2020 1 25 58873 0.0391 0.3048 -0.28738 2020 1 26 58874 0.0382 0.3061 -0.28801 2020 1 27 58875 0.0373 0.3075 -0.28873 2020 1 28 58876 0.0364 0.3088 -0.28949 2020 1 29 58877 0.0355 0.3102 -0.29028 2020 1 30 58878 0.0347 0.3116 -0.29108 2020 1 31 58879 0.0339 0.3130 -0.29187 2020 2 1 58880 0.0331 0.3144 -0.29261 2020 2 2 58881 0.0323 0.3159 -0.29322 2020 2 3 58882 0.0316 0.3173 -0.29375 2020 2 4 58883 0.0309 0.3188 -0.29418 2020 2 5 58884 0.0302 0.3202 -0.29453 2020 2 6 58885 0.0296 0.3217 -0.29484 2020 2 7 58886 0.0290 0.3232 -0.29517 2020 2 8 58887 0.0284 0.3247 -0.29560 2020 2 9 58888 0.0278 0.3262 -0.29610 2020 2 10 58889 0.0273 0.3277 -0.29681 2020 2 11 58890 0.0268 0.3293 -0.29781 2020 2 12 58891 0.0263 0.3308 -0.29899 2020 2 13 58892 0.0259 0.3324 -0.30032 2020 2 14 58893 0.0254 0.3339 -0.30166 2020 2 15 58894 0.0251 0.3355 -0.30293 2020 2 16 58895 0.0247 0.3370 -0.30404 2020 2 17 58896 0.0244 0.3386 -0.30498 2020 2 18 58897 0.0241 0.3402 -0.30573 2020 2 19 58898 0.0238 0.3418 -0.30636 2020 2 20 58899 0.0236 0.3434 -0.30698 2020 2 21 58900 0.0234 0.3449 -0.30765 2020 2 22 58901 0.0232 0.3465 -0.30843 2020 2 23 58902 0.0231 0.3481 -0.30936 2020 2 24 58903 0.0229 0.3497 -0.31042 2020 2 25 58904 0.0229 0.3513 -0.31162 2020 2 26 58905 0.0228 0.3529 -0.31296 2020 2 27 58906 0.0228 0.3546 -0.31438 2020 2 28 58907 0.0228 0.3562 -0.31577 2020 2 29 58908 0.0228 0.3578 -0.31713 2020 3 1 58909 0.0229 0.3594 -0.31844 2020 3 2 58910 0.0230 0.3610 -0.31965 2020 3 3 58911 0.0231 0.3626 -0.32081 2020 3 4 58912 0.0233 0.3642 -0.32188 2020 3 5 58913 0.0235 0.3658 -0.32292 2020 3 6 58914 0.0237 0.3674 -0.32397 2020 3 7 58915 0.0240 0.3690 -0.32515 2020 3 8 58916 0.0243 0.3706 -0.32648 2020 3 9 58917 0.0246 0.3722 -0.32807 2020 3 10 58918 0.0249 0.3737 -0.32995 2020 3 11 58919 0.0253 0.3753 -0.33202 2020 3 12 58920 0.0257 0.3769 -0.33406 2020 3 13 58921 0.0262 0.3785 -0.33592 2020 3 14 58922 0.0266 0.3800 -0.33756 2020 3 15 58923 0.0271 0.3816 -0.33895 2020 3 16 58924 0.0277 0.3831 -0.34007 2020 3 17 58925 0.0282 0.3847 -0.34095 2020 3 18 58926 0.0288 0.3862 -0.34172 2020 3 19 58927 0.0294 0.3877 -0.34248 2020 3 20 58928 0.0301 0.3892 -0.34324 2020 3 21 58929 0.0308 0.3907 -0.34411 2020 3 22 58930 0.0315 0.3922 -0.34503 2020 3 23 58931 0.0322 0.3937 -0.34608 2020 3 24 58932 0.0330 0.3952 -0.34725 2020 3 25 58933 0.0338 0.3966 -0.34849 2020 3 26 58934 0.0346 0.3981 -0.34979 2020 3 27 58935 0.0355 0.3995 -0.35103 2020 3 28 58936 0.0364 0.4009 -0.35222 2020 3 29 58937 0.0373 0.4023 -0.35337 2020 3 30 58938 0.0382 0.4037 -0.35442 2020 3 31 58939 0.0392 0.4051 -0.35536 2020 4 1 58940 0.0402 0.4064 -0.35626 2020 4 2 58941 0.0412 0.4078 -0.35720 2020 4 3 58942 0.0422 0.4091 -0.35821 2020 4 4 58943 0.0433 0.4104 -0.35938 2020 4 5 58944 0.0444 0.4117 -0.36081 2020 4 6 58945 0.0455 0.4130 -0.36251 2020 4 7 58946 0.0467 0.4143 -0.36439 2020 4 8 58947 0.0478 0.4155 -0.36638 2020 4 9 58948 0.0490 0.4168 -0.36839 2020 4 10 58949 0.0502 0.4180 -0.37018 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) 58558 -105.45 0.62 -9.86 0.22 58559 -105.67 0.58 -10.12 0.22 58560 -105.61 0.58 -10.42 0.22 58561 -105.17 0.38 -10.53 0.23 58562 -104.62 0.51 -10.46 0.30 58563 -104.35 0.51 -10.38 0.30 58564 -104.44 0.51 -10.36 0.30 58565 -104.74 0.57 -10.31 0.33 58566 -105.01 0.58 -10.16 0.27 58567 -105.09 0.58 -10.09 0.27 58568 -105.03 0.62 -10.24 0.08 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58558 0.231 0.245 -0.242 0.220 58559 0.222 0.232 -0.244 0.221 58560 0.215 0.232 -0.246 0.221 58561 0.209 0.150 -0.246 0.228 58562 0.207 0.204 -0.245 0.298 58563 0.208 0.204 -0.239 0.298 58564 0.211 0.204 -0.229 0.298 58565 0.216 0.225 -0.213 0.333 58566 0.222 0.232 -0.191 0.266 58567 0.229 0.232 -0.165 0.266 58568 0.236 0.245 -0.137 0.083 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).