********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 March 2019 Vol. XXXII No. 013 ______________________________________________________________________ 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 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 3 22 58564 0.04518 .00009 0.37178 .00009 -0.108997 0.000017 19 3 23 58565 0.04517 .00009 0.37308 .00009 -0.110621 0.000025 19 3 24 58566 0.04544 .00009 0.37445 .00009 -0.112102 0.000025 19 3 25 58567 0.04580 .00009 0.37584 .00009 -0.113365 0.000025 19 3 26 58568 0.04595 .00009 0.37722 .00009 -0.114428 0.000028 19 3 27 58569 0.04599 .00009 0.37834 .00009 -0.115305 0.000028 19 3 28 58570 0.04616 .00009 0.37920 .00009 -0.116087 0.000029 _______________________________________________________________________ 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 = 0.1201 - 0.0810 cos A + 0.0591 sin A + 0.0076 cos C - 0.0311 sin C y = 0.3484 + 0.0543 cos A + 0.0736 sin A - 0.0311 cos C - 0.0076 sin C UT1-UTC = -0.1022 - 0.00065 (MJD - 58578) - (UT2-UT1) where A = 2*pi*(MJD-58570)/365.25 and C = 2*pi*(MJD-58570)/435. TAI-UTC(MJD 58571) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58570)**0.80 S t = 0.00025 (MJD-58570)**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 3 29 58571 0.0465 0.3801 -0.11679 2019 3 30 58572 0.0469 0.3809 -0.11750 2019 3 31 58573 0.0475 0.3819 -0.11827 2019 4 1 58574 0.0481 0.3830 -0.11914 2019 4 2 58575 0.0487 0.3841 -0.12016 2019 4 3 58576 0.0493 0.3853 -0.12130 2019 4 4 58577 0.0500 0.3864 -0.12254 2019 4 5 58578 0.0507 0.3874 -0.12385 2019 4 6 58579 0.0514 0.3885 -0.12520 2019 4 7 58580 0.0522 0.3895 -0.12655 2019 4 8 58581 0.0530 0.3906 -0.12780 2019 4 9 58582 0.0538 0.3916 -0.12893 2019 4 10 58583 0.0546 0.3927 -0.12993 2019 4 11 58584 0.0556 0.3937 -0.13081 2019 4 12 58585 0.0565 0.3948 -0.13162 2019 4 13 58586 0.0575 0.3959 -0.13244 2019 4 14 58587 0.0584 0.3969 -0.13334 2019 4 15 58588 0.0594 0.3979 -0.13441 2019 4 16 58589 0.0604 0.3989 -0.13567 2019 4 17 58590 0.0614 0.3999 -0.13710 2019 4 18 58591 0.0624 0.4008 -0.13864 2019 4 19 58592 0.0635 0.4018 -0.14017 2019 4 20 58593 0.0646 0.4028 -0.14159 2019 4 21 58594 0.0657 0.4037 -0.14280 2019 4 22 58595 0.0668 0.4046 -0.14379 2019 4 23 58596 0.0679 0.4055 -0.14458 2019 4 24 58597 0.0691 0.4063 -0.14519 2019 4 25 58598 0.0703 0.4072 -0.14570 2019 4 26 58599 0.0715 0.4080 -0.14618 2019 4 27 58600 0.0727 0.4088 -0.14668 2019 4 28 58601 0.0739 0.4096 -0.14726 2019 4 29 58602 0.0752 0.4104 -0.14795 2019 4 30 58603 0.0764 0.4112 -0.14877 2019 5 1 58604 0.0777 0.4120 -0.14972 2019 5 2 58605 0.0790 0.4127 -0.15076 2019 5 3 58606 0.0803 0.4134 -0.15186 2019 5 4 58607 0.0816 0.4141 -0.15297 2019 5 5 58608 0.0830 0.4147 -0.15403 2019 5 6 58609 0.0843 0.4154 -0.15500 2019 5 7 58610 0.0857 0.4160 -0.15583 2019 5 8 58611 0.0871 0.4166 -0.15655 2019 5 9 58612 0.0885 0.4172 -0.15718 2019 5 10 58613 0.0899 0.4177 -0.15780 2019 5 11 58614 0.0913 0.4183 -0.15848 2019 5 12 58615 0.0927 0.4188 -0.15929 2019 5 13 58616 0.0941 0.4193 -0.16027 2019 5 14 58617 0.0955 0.4197 -0.16143 2019 5 15 58618 0.0970 0.4202 -0.16270 2019 5 16 58619 0.0985 0.4206 -0.16400 2019 5 17 58620 0.0999 0.4210 -0.16523 2019 5 18 58621 0.1014 0.4214 -0.16630 2019 5 19 58622 0.1029 0.4218 -0.16716 2019 5 20 58623 0.1044 0.4221 -0.16781 2019 5 21 58624 0.1059 0.4224 -0.16826 2019 5 22 58625 0.1074 0.4227 -0.16858 2019 5 23 58626 0.1089 0.4229 -0.16883 2019 5 24 58627 0.1104 0.4232 -0.16905 2019 5 25 58628 0.1120 0.4234 -0.16931 2019 5 26 58629 0.1135 0.4236 -0.16963 2019 5 27 58630 0.1150 0.4237 -0.17003 2019 5 28 58631 0.1166 0.4239 -0.17053 2019 5 29 58632 0.1181 0.4240 -0.17110 2019 5 30 58633 0.1197 0.4241 -0.17173 2019 5 31 58634 0.1212 0.4242 -0.17236 2019 6 1 58635 0.1228 0.4242 -0.17296 2019 6 2 58636 0.1243 0.4242 -0.17347 2019 6 3 58637 0.1259 0.4242 -0.17385 2019 6 4 58638 0.1274 0.4242 -0.17409 2019 6 5 58639 0.1290 0.4241 -0.17420 2019 6 6 58640 0.1305 0.4241 -0.17426 2019 6 7 58641 0.1321 0.4240 -0.17436 2019 6 8 58642 0.1336 0.4238 -0.17457 2019 6 9 58643 0.1352 0.4237 -0.17493 2019 6 10 58644 0.1367 0.4235 -0.17545 2019 6 11 58645 0.1383 0.4233 -0.17609 2019 6 12 58646 0.1398 0.4231 -0.17678 2019 6 13 58647 0.1414 0.4229 -0.17742 2019 6 14 58648 0.1429 0.4226 -0.17794 2019 6 15 58649 0.1444 0.4223 -0.17828 2019 6 16 58650 0.1459 0.4220 -0.17842 2019 6 17 58651 0.1475 0.4216 -0.17837 2019 6 18 58652 0.1490 0.4213 -0.17817 2019 6 19 58653 0.1505 0.4209 -0.17787 2019 6 20 58654 0.1520 0.4205 -0.17754 2019 6 21 58655 0.1535 0.4200 -0.17723 2019 6 22 58656 0.1549 0.4196 -0.17698 2019 6 23 58657 0.1564 0.4191 -0.17682 2019 6 24 58658 0.1579 0.4186 -0.17677 2019 6 25 58659 0.1593 0.4181 -0.17680 2019 6 26 58660 0.1608 0.4175 -0.17691 2019 6 27 58661 0.1622 0.4169 -0.17704 2019 6 28 58662 0.1636 0.4163 -0.17716 2019 6 29 58663 0.1651 0.4157 -0.17721 2019 6 30 58664 0.1665 0.4151 -0.17717 2019 7 1 58665 0.1679 0.4144 -0.17701 2019 7 2 58666 0.1692 0.4137 -0.17673 2019 7 3 58667 0.1706 0.4130 -0.17639 2019 7 4 58668 0.1719 0.4123 -0.17606 2019 7 5 58669 0.1733 0.4116 -0.17585 2019 7 6 58670 0.1746 0.4108 -0.17580 2019 7 7 58671 0.1759 0.4100 -0.17593 2019 7 8 58672 0.1772 0.4092 -0.17620 2019 7 9 58673 0.1785 0.4084 -0.17652 2019 7 10 58674 0.1797 0.4075 -0.17681 2019 7 11 58675 0.1810 0.4066 -0.17699 2019 7 12 58676 0.1822 0.4058 -0.17699 2019 7 13 58677 0.1834 0.4049 -0.17680 2019 7 14 58678 0.1846 0.4039 -0.17643 2019 7 15 58679 0.1858 0.4030 -0.17592 2019 7 16 58680 0.1869 0.4020 -0.17531 2019 7 17 58681 0.1881 0.4010 -0.17468 2019 7 18 58682 0.1892 0.4000 -0.17407 2019 7 19 58683 0.1903 0.3990 -0.17353 2019 7 20 58684 0.1914 0.3980 -0.17309 2019 7 21 58685 0.1924 0.3969 -0.17276 2019 7 22 58686 0.1935 0.3959 -0.17254 2019 7 23 58687 0.1945 0.3948 -0.17240 2019 7 24 58688 0.1955 0.3937 -0.17232 2019 7 25 58689 0.1965 0.3926 -0.17224 2019 7 26 58690 0.1974 0.3914 -0.17215 2019 7 27 58691 0.1984 0.3903 -0.17199 2019 7 28 58692 0.1993 0.3891 -0.17174 2019 7 29 58693 0.2001 0.3880 -0.17139 2019 7 30 58694 0.2010 0.3868 -0.17099 2019 7 31 58695 0.2019 0.3856 -0.17059 2019 8 1 58696 0.2027 0.3844 -0.17029 2019 8 2 58697 0.2035 0.3831 -0.17018 2019 8 3 58698 0.2042 0.3819 -0.17028 2019 8 4 58699 0.2050 0.3807 -0.17059 2019 8 5 58700 0.2057 0.3794 -0.17101 2019 8 6 58701 0.2064 0.3781 -0.17143 2019 8 7 58702 0.2071 0.3768 -0.17175 2019 8 8 58703 0.2077 0.3755 -0.17191 2019 8 9 58704 0.2083 0.3742 -0.17188 2019 8 10 58705 0.2089 0.3729 -0.17167 2019 8 11 58706 0.2095 0.3716 -0.17131 2019 8 12 58707 0.2100 0.3703 -0.17088 2019 8 13 58708 0.2105 0.3689 -0.17042 2019 8 14 58709 0.2110 0.3676 -0.16999 2019 8 15 58710 0.2115 0.3662 -0.16964 2019 8 16 58711 0.2119 0.3649 -0.16939 2019 8 17 58712 0.2123 0.3635 -0.16927 2019 8 18 58713 0.2127 0.3621 -0.16928 2019 8 19 58714 0.2131 0.3607 -0.16938 2019 8 20 58715 0.2134 0.3593 -0.16956 2019 8 21 58716 0.2137 0.3579 -0.16977 2019 8 22 58717 0.2140 0.3565 -0.16997 2019 8 23 58718 0.2142 0.3551 -0.17012 2019 8 24 58719 0.2144 0.3537 -0.17020 2019 8 25 58720 0.2146 0.3523 -0.17021 2019 8 26 58721 0.2148 0.3509 -0.17016 2019 8 27 58722 0.2149 0.3495 -0.17010 2019 8 28 58723 0.2150 0.3481 -0.17012 2019 8 29 58724 0.2151 0.3467 -0.17031 2019 8 30 58725 0.2151 0.3452 -0.17075 2019 8 31 58726 0.2151 0.3438 -0.17144 2019 9 1 58727 0.2151 0.3424 -0.17232 2019 9 2 58728 0.2151 0.3410 -0.17328 2019 9 3 58729 0.2150 0.3395 -0.17418 2019 9 4 58730 0.2149 0.3381 -0.17493 2019 9 5 58731 0.2148 0.3367 -0.17548 2019 9 6 58732 0.2147 0.3353 -0.17581 2019 9 7 58733 0.2145 0.3339 -0.17599 2019 9 8 58734 0.2143 0.3325 -0.17606 2019 9 9 58735 0.2140 0.3311 -0.17609 2019 9 10 58736 0.2138 0.3297 -0.17614 2019 9 11 58737 0.2135 0.3283 -0.17626 2019 9 12 58738 0.2132 0.3269 -0.17649 2019 9 13 58739 0.2128 0.3255 -0.17685 2019 9 14 58740 0.2124 0.3241 -0.17733 2019 9 15 58741 0.2120 0.3227 -0.17792 2019 9 16 58742 0.2116 0.3213 -0.17859 2019 9 17 58743 0.2111 0.3200 -0.17930 2019 9 18 58744 0.2107 0.3186 -0.18000 2019 9 19 58745 0.2101 0.3173 -0.18065 2019 9 20 58746 0.2096 0.3159 -0.18122 2019 9 21 58747 0.2090 0.3146 -0.18170 2019 9 22 58748 0.2084 0.3133 -0.18210 2019 9 23 58749 0.2078 0.3119 -0.18247 2019 9 24 58750 0.2072 0.3106 -0.18288 2019 9 25 58751 0.2065 0.3093 -0.18341 2019 9 26 58752 0.2058 0.3080 -0.18415 2019 9 27 58753 0.2051 0.3068 -0.18514 2019 9 28 58754 0.2043 0.3055 -0.18637 2019 9 29 58755 0.2035 0.3043 -0.18774 2019 9 30 58756 0.2027 0.3030 -0.18912 2019 10 1 58757 0.2019 0.3018 -0.19039 2019 10 2 58758 0.2010 0.3006 -0.19144 2019 10 3 58759 0.2002 0.2994 -0.19226 2019 10 4 58760 0.1993 0.2982 -0.19286 2019 10 5 58761 0.1983 0.2970 -0.19332 2019 10 6 58762 0.1974 0.2958 -0.19371 2019 10 7 58763 0.1964 0.2947 -0.19410 2019 10 8 58764 0.1954 0.2936 -0.19454 2019 10 9 58765 0.1944 0.2925 -0.19508 2019 10 10 58766 0.1933 0.2914 -0.19574 2019 10 11 58767 0.1923 0.2903 -0.19652 2019 10 12 58768 0.1912 0.2892 -0.19743 2019 10 13 58769 0.1901 0.2882 -0.19842 2019 10 14 58770 0.1889 0.2871 -0.19945 2019 10 15 58771 0.1878 0.2861 -0.20048 2019 10 16 58772 0.1866 0.2851 -0.20145 2019 10 17 58773 0.1854 0.2842 -0.20231 2019 10 18 58774 0.1842 0.2832 -0.20305 2019 10 19 58775 0.1830 0.2823 -0.20367 2019 10 20 58776 0.1817 0.2813 -0.20421 2019 10 21 58777 0.1804 0.2804 -0.20473 2019 10 22 58778 0.1792 0.2796 -0.20531 2019 10 23 58779 0.1778 0.2787 -0.20605 2019 10 24 58780 0.1765 0.2779 -0.20703 2019 10 25 58781 0.1752 0.2770 -0.20826 2019 10 26 58782 0.1738 0.2763 -0.20970 2019 10 27 58783 0.1724 0.2755 -0.21126 2019 10 28 58784 0.1710 0.2747 -0.21281 2019 10 29 58785 0.1696 0.2740 -0.21422 2019 10 30 58786 0.1682 0.2733 -0.21538 2019 10 31 58787 0.1668 0.2726 -0.21629 2019 11 1 58788 0.1653 0.2719 -0.21697 2019 11 2 58789 0.1638 0.2713 -0.21751 2019 11 3 58790 0.1623 0.2707 -0.21798 2019 11 4 58791 0.1608 0.2701 -0.21846 2019 11 5 58792 0.1593 0.2695 -0.21901 2019 11 6 58793 0.1578 0.2689 -0.21966 2019 11 7 58794 0.1563 0.2684 -0.22046 2019 11 8 58795 0.1547 0.2679 -0.22140 2019 11 9 58796 0.1532 0.2674 -0.22241 2019 11 10 58797 0.1516 0.2670 -0.22345 2019 11 11 58798 0.1500 0.2666 -0.22457 2019 11 12 58799 0.1484 0.2662 -0.22571 2019 11 13 58800 0.1468 0.2658 -0.22673 2019 11 14 58801 0.1452 0.2654 -0.22755 2019 11 15 58802 0.1436 0.2651 -0.22829 2019 11 16 58803 0.1420 0.2648 -0.22903 2019 11 17 58804 0.1404 0.2645 -0.22974 2019 11 18 58805 0.1387 0.2643 -0.23050 2019 11 19 58806 0.1371 0.2640 -0.23139 2019 11 20 58807 0.1354 0.2638 -0.23244 2019 11 21 58808 0.1338 0.2637 -0.23368 2019 11 22 58809 0.1321 0.2635 -0.23515 2019 11 23 58810 0.1305 0.2634 -0.23673 2019 11 24 58811 0.1288 0.2633 -0.23833 2019 11 25 58812 0.1271 0.2632 -0.23982 2019 11 26 58813 0.1255 0.2632 -0.24116 2019 11 27 58814 0.1238 0.2631 -0.24235 2019 11 28 58815 0.1221 0.2632 -0.24335 2019 11 29 58816 0.1204 0.2632 -0.24414 2019 11 30 58817 0.1188 0.2632 -0.24483 2019 12 1 58818 0.1171 0.2633 -0.24547 2019 12 2 58819 0.1154 0.2634 -0.24614 2019 12 3 58820 0.1137 0.2636 -0.24691 2019 12 4 58821 0.1121 0.2637 -0.24778 2019 12 5 58822 0.1104 0.2639 -0.24875 2019 12 6 58823 0.1087 0.2642 -0.24985 2019 12 7 58824 0.1071 0.2644 -0.25103 2019 12 8 58825 0.1054 0.2647 -0.25221 2019 12 9 58826 0.1037 0.2650 -0.25335 2019 12 10 58827 0.1021 0.2653 -0.25443 2019 12 11 58828 0.1004 0.2656 -0.25546 2019 12 12 58829 0.0988 0.2660 -0.25642 2019 12 13 58830 0.0972 0.2664 -0.25734 2019 12 14 58831 0.0955 0.2668 -0.25820 2019 12 15 58832 0.0939 0.2673 -0.25904 2019 12 16 58833 0.0923 0.2678 -0.25996 2019 12 17 58834 0.0907 0.2683 -0.26100 2019 12 18 58835 0.0891 0.2688 -0.26219 2019 12 19 58836 0.0875 0.2693 -0.26355 2019 12 20 58837 0.0859 0.2699 -0.26505 2019 12 21 58838 0.0843 0.2705 -0.26661 2019 12 22 58839 0.0828 0.2711 -0.26810 2019 12 23 58840 0.0812 0.2718 -0.26939 2019 12 24 58841 0.0797 0.2725 -0.27043 2019 12 25 58842 0.0782 0.2732 -0.27122 2019 12 26 58843 0.0766 0.2739 -0.27181 2019 12 27 58844 0.0751 0.2746 -0.27230 2019 12 28 58845 0.0737 0.2754 -0.27277 2019 12 29 58846 0.0722 0.2762 -0.27332 2019 12 30 58847 0.0707 0.2770 -0.27393 2019 12 31 58848 0.0693 0.2779 -0.27456 2020 1 1 58849 0.0679 0.2787 -0.27523 2020 1 2 58850 0.0664 0.2796 -0.27591 2020 1 3 58851 0.0650 0.2805 -0.27661 2020 1 4 58852 0.0637 0.2815 -0.27727 2020 1 5 58853 0.0623 0.2824 -0.27784 2020 1 6 58854 0.0610 0.2834 -0.27834 2020 1 7 58855 0.0596 0.2844 -0.27875 2020 1 8 58856 0.0583 0.2854 -0.27906 2020 1 9 58857 0.0570 0.2864 -0.27930 2020 1 10 58858 0.0558 0.2875 -0.27949 2020 1 11 58859 0.0545 0.2886 -0.27972 2020 1 12 58860 0.0533 0.2897 -0.27994 2020 1 13 58861 0.0521 0.2908 -0.28031 2020 1 14 58862 0.0509 0.2919 -0.28093 2020 1 15 58863 0.0497 0.2931 -0.28174 2020 1 16 58864 0.0486 0.2942 -0.28276 2020 1 17 58865 0.0474 0.2954 -0.28386 2020 1 18 58866 0.0463 0.2966 -0.28496 2020 1 19 58867 0.0453 0.2979 -0.28598 2020 1 20 58868 0.0442 0.2991 -0.28685 2020 1 21 58869 0.0432 0.3004 -0.28752 2020 1 22 58870 0.0422 0.3017 -0.28801 2020 1 23 58871 0.0412 0.3029 -0.28844 2020 1 24 58872 0.0402 0.3043 -0.28886 2020 1 25 58873 0.0393 0.3056 -0.28936 2020 1 26 58874 0.0384 0.3069 -0.28997 2020 1 27 58875 0.0375 0.3083 -0.29070 2020 1 28 58876 0.0366 0.3096 -0.29157 2020 1 29 58877 0.0358 0.3110 -0.29259 2020 1 30 58878 0.0350 0.3124 -0.29372 2020 1 31 58879 0.0342 0.3138 -0.29485 2020 2 1 58880 0.0334 0.3152 -0.29598 2020 2 2 58881 0.0327 0.3167 -0.29710 2020 2 3 58882 0.0320 0.3181 -0.29814 2020 2 4 58883 0.0313 0.3196 -0.29913 2020 2 5 58884 0.0307 0.3210 -0.30002 2020 2 6 58885 0.0301 0.3225 -0.30085 2020 2 7 58886 0.0295 0.3240 -0.30163 2020 2 8 58887 0.0289 0.3255 -0.30247 2020 2 9 58888 0.0284 0.3270 -0.30343 2020 2 10 58889 0.0279 0.3285 -0.30459 2020 2 11 58890 0.0274 0.3300 -0.30604 2020 2 12 58891 0.0270 0.3316 -0.30771 2020 2 13 58892 0.0266 0.3331 -0.30942 2020 2 14 58893 0.0262 0.3347 -0.31102 2020 2 15 58894 0.0258 0.3362 -0.31247 2020 2 16 58895 0.0255 0.3378 -0.31371 2020 2 17 58896 0.0252 0.3393 -0.31469 2020 2 18 58897 0.0249 0.3409 -0.31542 2020 2 19 58898 0.0247 0.3425 -0.31598 2020 2 20 58899 0.0245 0.3440 -0.31651 2020 2 21 58900 0.0243 0.3456 -0.31700 2020 2 22 58901 0.0242 0.3472 -0.31758 2020 2 23 58902 0.0240 0.3488 -0.31820 2020 2 24 58903 0.0240 0.3504 -0.31896 2020 2 25 58904 0.0239 0.3520 -0.31985 2020 2 26 58905 0.0239 0.3535 -0.32086 2020 2 27 58906 0.0239 0.3551 -0.32197 2020 2 28 58907 0.0239 0.3567 -0.32306 2020 2 29 58908 0.0240 0.3583 -0.32414 2020 3 1 58909 0.0241 0.3599 -0.32523 2020 3 2 58910 0.0242 0.3615 -0.32623 2020 3 3 58911 0.0244 0.3631 -0.32713 2020 3 4 58912 0.0246 0.3647 -0.32798 2020 3 5 58913 0.0248 0.3663 -0.32884 2020 3 6 58914 0.0251 0.3678 -0.32972 2020 3 7 58915 0.0254 0.3694 -0.33072 2020 3 8 58916 0.0257 0.3710 -0.33196 2020 3 9 58917 0.0260 0.3726 -0.33347 2020 3 10 58918 0.0264 0.3741 -0.33520 2020 3 11 58919 0.0268 0.3757 -0.33709 2020 3 12 58920 0.0273 0.3772 -0.33906 2020 3 13 58921 0.0277 0.3788 -0.34089 2020 3 14 58922 0.0282 0.3803 -0.34250 2020 3 15 58923 0.0288 0.3818 -0.34384 2020 3 16 58924 0.0293 0.3834 -0.34496 2020 3 17 58925 0.0299 0.3849 -0.34584 2020 3 18 58926 0.0305 0.3864 -0.34660 2020 3 19 58927 0.0312 0.3879 -0.34732 2020 3 20 58928 0.0319 0.3894 -0.34806 2020 3 21 58929 0.0326 0.3908 -0.34886 2020 3 22 58930 0.0333 0.3923 -0.34971 2020 3 23 58931 0.0341 0.3938 -0.35069 2020 3 24 58932 0.0349 0.3952 -0.35178 2020 3 25 58933 0.0357 0.3966 -0.35287 2020 3 26 58934 0.0366 0.3981 -0.35387 2020 3 27 58935 0.0374 0.3995 -0.35480 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) 58544 -106.21 0.67 -9.50 0.25 58545 -105.68 0.68 -9.47 0.23 58546 -105.19 0.68 -9.37 0.23 58547 -104.95 0.71 -9.16 0.17 58548 -104.96 0.61 -8.95 0.22 58549 -105.08 0.61 -8.87 0.22 58550 -105.21 0.61 -8.96 0.22 58551 -105.30 0.55 -9.15 0.25 58552 -105.33 0.60 -9.34 0.25 58553 -105.33 0.60 -9.51 0.25 58554 -105.32 0.68 -9.68 0.26 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58544 0.277 0.266 -0.237 0.251 58545 0.274 0.271 -0.228 0.228 58546 0.270 0.271 -0.220 0.228 58547 0.266 0.282 -0.216 0.170 58548 0.262 0.243 -0.216 0.220 58549 0.257 0.243 -0.218 0.220 58550 0.254 0.243 -0.223 0.220 58551 0.253 0.219 -0.229 0.250 58552 0.253 0.239 -0.236 0.254 58553 0.255 0.239 -0.243 0.254 58554 0.258 0.271 -0.251 0.261 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).