********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 21 March 2019 Vol. XXXII No. 012 ______________________________________________________________________ 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 15 58557 0.04473 .00009 0.36431 .00009 -0.100483 0.000013 19 3 16 58558 0.04492 .00009 0.36557 .00009 -0.101265 0.000012 19 3 17 58559 0.04519 .00009 0.36669 .00009 -0.102127 0.000012 19 3 18 58560 0.04555 .00009 0.36767 .00009 -0.103122 0.000012 19 3 19 58561 0.04576 .00009 0.36868 .00009 -0.104326 0.000013 19 3 20 58562 0.04563 .00009 0.36965 .00009 -0.105738 0.000013 19 3 21 58563 0.04529 .00009 0.37063 .00009 -0.107303 0.000013 _______________________________________________________________________ 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 = 0.1233 - 0.0877 cos A + 0.0513 sin A + 0.0121 cos C - 0.0320 sin C y = 0.3486 + 0.0472 cos A + 0.0799 sin A - 0.0320 cos C - 0.0121 sin C UT1-UTC = -0.0975 - 0.00065 (MJD - 58571) - (UT2-UT1) where A = 2*pi*(MJD-58563)/365.25 and C = 2*pi*(MJD-58563)/435. TAI-UTC(MJD 58564) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58563)**0.80 S t = 0.00025 (MJD-58563)**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 22 58564 0.0451 0.3715 -0.10896 2019 3 23 58565 0.0452 0.3725 -0.11057 2019 3 24 58566 0.0455 0.3734 -0.11201 2019 3 25 58567 0.0460 0.3743 -0.11321 2019 3 26 58568 0.0465 0.3754 -0.11418 2019 3 27 58569 0.0471 0.3765 -0.11499 2019 3 28 58570 0.0477 0.3777 -0.11568 2019 3 29 58571 0.0482 0.3789 -0.11631 2019 3 30 58572 0.0488 0.3801 -0.11693 2019 3 31 58573 0.0494 0.3812 -0.11758 2019 4 1 58574 0.0500 0.3824 -0.11831 2019 4 2 58575 0.0506 0.3836 -0.11918 2019 4 3 58576 0.0513 0.3847 -0.12016 2019 4 4 58577 0.0520 0.3859 -0.12125 2019 4 5 58578 0.0528 0.3869 -0.12242 2019 4 6 58579 0.0536 0.3880 -0.12363 2019 4 7 58580 0.0544 0.3891 -0.12482 2019 4 8 58581 0.0552 0.3903 -0.12593 2019 4 9 58582 0.0560 0.3914 -0.12694 2019 4 10 58583 0.0569 0.3924 -0.12781 2019 4 11 58584 0.0578 0.3935 -0.12859 2019 4 12 58585 0.0587 0.3945 -0.12931 2019 4 13 58586 0.0596 0.3955 -0.13004 2019 4 14 58587 0.0606 0.3965 -0.13088 2019 4 15 58588 0.0616 0.3975 -0.13189 2019 4 16 58589 0.0626 0.3985 -0.13312 2019 4 17 58590 0.0636 0.3994 -0.13456 2019 4 18 58591 0.0646 0.4004 -0.13613 2019 4 19 58592 0.0657 0.4013 -0.13774 2019 4 20 58593 0.0668 0.4022 -0.13926 2019 4 21 58594 0.0679 0.4031 -0.14062 2019 4 22 58595 0.0691 0.4040 -0.14177 2019 4 23 58596 0.0703 0.4048 -0.14273 2019 4 24 58597 0.0714 0.4057 -0.14353 2019 4 25 58598 0.0726 0.4065 -0.14424 2019 4 26 58599 0.0738 0.4073 -0.14492 2019 4 27 58600 0.0750 0.4081 -0.14561 2019 4 28 58601 0.0762 0.4089 -0.14637 2019 4 29 58602 0.0775 0.4096 -0.14723 2019 4 30 58603 0.0788 0.4104 -0.14820 2019 5 1 58604 0.0800 0.4111 -0.14928 2019 5 2 58605 0.0813 0.4118 -0.15044 2019 5 3 58606 0.0827 0.4125 -0.15166 2019 5 4 58607 0.0840 0.4131 -0.15287 2019 5 5 58608 0.0853 0.4138 -0.15401 2019 5 6 58609 0.0866 0.4144 -0.15504 2019 5 7 58610 0.0880 0.4150 -0.15593 2019 5 8 58611 0.0894 0.4156 -0.15668 2019 5 9 58612 0.0908 0.4161 -0.15734 2019 5 10 58613 0.0922 0.4166 -0.15798 2019 5 11 58614 0.0936 0.4172 -0.15867 2019 5 12 58615 0.0950 0.4176 -0.15949 2019 5 13 58616 0.0964 0.4181 -0.16047 2019 5 14 58617 0.0979 0.4185 -0.16161 2019 5 15 58618 0.0993 0.4190 -0.16287 2019 5 16 58619 0.1008 0.4194 -0.16415 2019 5 17 58620 0.1023 0.4197 -0.16536 2019 5 18 58621 0.1038 0.4201 -0.16641 2019 5 19 58622 0.1052 0.4204 -0.16725 2019 5 20 58623 0.1067 0.4207 -0.16787 2019 5 21 58624 0.1082 0.4210 -0.16829 2019 5 22 58625 0.1097 0.4213 -0.16858 2019 5 23 58626 0.1113 0.4215 -0.16880 2019 5 24 58627 0.1128 0.4217 -0.16899 2019 5 25 58628 0.1143 0.4219 -0.16921 2019 5 26 58629 0.1158 0.4221 -0.16950 2019 5 27 58630 0.1174 0.4222 -0.16988 2019 5 28 58631 0.1189 0.4223 -0.17036 2019 5 29 58632 0.1204 0.4224 -0.17092 2019 5 30 58633 0.1220 0.4225 -0.17155 2019 5 31 58634 0.1235 0.4225 -0.17219 2019 6 1 58635 0.1251 0.4226 -0.17280 2019 6 2 58636 0.1266 0.4226 -0.17333 2019 6 3 58637 0.1282 0.4225 -0.17373 2019 6 4 58638 0.1297 0.4225 -0.17399 2019 6 5 58639 0.1313 0.4224 -0.17414 2019 6 6 58640 0.1328 0.4223 -0.17424 2019 6 7 58641 0.1343 0.4222 -0.17436 2019 6 8 58642 0.1359 0.4220 -0.17460 2019 6 9 58643 0.1374 0.4219 -0.17497 2019 6 10 58644 0.1390 0.4217 -0.17549 2019 6 11 58645 0.1405 0.4215 -0.17613 2019 6 12 58646 0.1420 0.4212 -0.17680 2019 6 13 58647 0.1436 0.4210 -0.17744 2019 6 14 58648 0.1451 0.4207 -0.17794 2019 6 15 58649 0.1466 0.4204 -0.17827 2019 6 16 58650 0.1481 0.4200 -0.17839 2019 6 17 58651 0.1496 0.4197 -0.17831 2019 6 18 58652 0.1511 0.4193 -0.17809 2019 6 19 58653 0.1526 0.4189 -0.17777 2019 6 20 58654 0.1541 0.4184 -0.17742 2019 6 21 58655 0.1556 0.4180 -0.17709 2019 6 22 58656 0.1570 0.4175 -0.17682 2019 6 23 58657 0.1585 0.4170 -0.17665 2019 6 24 58658 0.1600 0.4165 -0.17658 2019 6 25 58659 0.1614 0.4159 -0.17660 2019 6 26 58660 0.1628 0.4154 -0.17669 2019 6 27 58661 0.1642 0.4148 -0.17681 2019 6 28 58662 0.1657 0.4142 -0.17692 2019 6 29 58663 0.1671 0.4135 -0.17697 2019 6 30 58664 0.1684 0.4129 -0.17693 2019 7 1 58665 0.1698 0.4122 -0.17676 2019 7 2 58666 0.1712 0.4115 -0.17647 2019 7 3 58667 0.1725 0.4108 -0.17612 2019 7 4 58668 0.1739 0.4101 -0.17578 2019 7 5 58669 0.1752 0.4093 -0.17555 2019 7 6 58670 0.1765 0.4085 -0.17548 2019 7 7 58671 0.1778 0.4077 -0.17559 2019 7 8 58672 0.1790 0.4069 -0.17584 2019 7 9 58673 0.1803 0.4060 -0.17614 2019 7 10 58674 0.1815 0.4052 -0.17642 2019 7 11 58675 0.1828 0.4043 -0.17657 2019 7 12 58676 0.1840 0.4034 -0.17656 2019 7 13 58677 0.1852 0.4025 -0.17637 2019 7 14 58678 0.1863 0.4016 -0.17599 2019 7 15 58679 0.1875 0.4006 -0.17547 2019 7 16 58680 0.1886 0.3996 -0.17487 2019 7 17 58681 0.1897 0.3986 -0.17424 2019 7 18 58682 0.1908 0.3976 -0.17363 2019 7 19 58683 0.1919 0.3966 -0.17310 2019 7 20 58684 0.1930 0.3956 -0.17266 2019 7 21 58685 0.1940 0.3945 -0.17233 2019 7 22 58686 0.1950 0.3934 -0.17211 2019 7 23 58687 0.1960 0.3923 -0.17198 2019 7 24 58688 0.1970 0.3912 -0.17190 2019 7 25 58689 0.1979 0.3901 -0.17184 2019 7 26 58690 0.1989 0.3890 -0.17175 2019 7 27 58691 0.1998 0.3878 -0.17160 2019 7 28 58692 0.2007 0.3867 -0.17136 2019 7 29 58693 0.2015 0.3855 -0.17103 2019 7 30 58694 0.2024 0.3843 -0.17064 2019 7 31 58695 0.2032 0.3831 -0.17026 2019 8 1 58696 0.2040 0.3819 -0.16998 2019 8 2 58697 0.2047 0.3806 -0.16988 2019 8 3 58698 0.2055 0.3794 -0.17001 2019 8 4 58699 0.2062 0.3781 -0.17034 2019 8 5 58700 0.2069 0.3769 -0.17078 2019 8 6 58701 0.2076 0.3756 -0.17122 2019 8 7 58702 0.2082 0.3743 -0.17157 2019 8 8 58703 0.2088 0.3730 -0.17176 2019 8 9 58704 0.2094 0.3717 -0.17175 2019 8 10 58705 0.2100 0.3704 -0.17156 2019 8 11 58706 0.2105 0.3691 -0.17123 2019 8 12 58707 0.2111 0.3678 -0.17082 2019 8 13 58708 0.2115 0.3664 -0.17038 2019 8 14 58709 0.2120 0.3651 -0.16998 2019 8 15 58710 0.2124 0.3637 -0.16964 2019 8 16 58711 0.2128 0.3624 -0.16942 2019 8 17 58712 0.2132 0.3610 -0.16932 2019 8 18 58713 0.2136 0.3596 -0.16933 2019 8 19 58714 0.2139 0.3582 -0.16946 2019 8 20 58715 0.2142 0.3568 -0.16965 2019 8 21 58716 0.2145 0.3555 -0.16987 2019 8 22 58717 0.2147 0.3541 -0.17008 2019 8 23 58718 0.2149 0.3527 -0.17024 2019 8 24 58719 0.2151 0.3513 -0.17034 2019 8 25 58720 0.2153 0.3499 -0.17036 2019 8 26 58721 0.2154 0.3485 -0.17032 2019 8 27 58722 0.2155 0.3471 -0.17027 2019 8 28 58723 0.2156 0.3456 -0.17030 2019 8 29 58724 0.2156 0.3442 -0.17050 2019 8 30 58725 0.2157 0.3428 -0.17094 2019 8 31 58726 0.2157 0.3414 -0.17164 2019 9 1 58727 0.2156 0.3400 -0.17253 2019 9 2 58728 0.2156 0.3386 -0.17350 2019 9 3 58729 0.2155 0.3372 -0.17441 2019 9 4 58730 0.2153 0.3358 -0.17517 2019 9 5 58731 0.2152 0.3344 -0.17572 2019 9 6 58732 0.2150 0.3330 -0.17606 2019 9 7 58733 0.2148 0.3315 -0.17623 2019 9 8 58734 0.2146 0.3302 -0.17630 2019 9 9 58735 0.2143 0.3288 -0.17633 2019 9 10 58736 0.2140 0.3274 -0.17638 2019 9 11 58737 0.2137 0.3260 -0.17649 2019 9 12 58738 0.2133 0.3246 -0.17671 2019 9 13 58739 0.2130 0.3232 -0.17704 2019 9 14 58740 0.2126 0.3218 -0.17750 2019 9 15 58741 0.2121 0.3205 -0.17806 2019 9 16 58742 0.2117 0.3191 -0.17870 2019 9 17 58743 0.2112 0.3178 -0.17937 2019 9 18 58744 0.2107 0.3164 -0.18002 2019 9 19 58745 0.2101 0.3151 -0.18061 2019 9 20 58746 0.2096 0.3138 -0.18112 2019 9 21 58747 0.2090 0.3125 -0.18153 2019 9 22 58748 0.2083 0.3111 -0.18185 2019 9 23 58749 0.2077 0.3098 -0.18213 2019 9 24 58750 0.2070 0.3086 -0.18244 2019 9 25 58751 0.2063 0.3073 -0.18287 2019 9 26 58752 0.2056 0.3060 -0.18350 2019 9 27 58753 0.2048 0.3048 -0.18439 2019 9 28 58754 0.2041 0.3035 -0.18552 2019 9 29 58755 0.2033 0.3023 -0.18680 2019 9 30 58756 0.2024 0.3011 -0.18812 2019 10 1 58757 0.2016 0.2998 -0.18933 2019 10 2 58758 0.2007 0.2987 -0.19036 2019 10 3 58759 0.1998 0.2975 -0.19116 2019 10 4 58760 0.1989 0.2963 -0.19177 2019 10 5 58761 0.1979 0.2952 -0.19224 2019 10 6 58762 0.1969 0.2940 -0.19263 2019 10 7 58763 0.1959 0.2929 -0.19301 2019 10 8 58764 0.1949 0.2918 -0.19344 2019 10 9 58765 0.1939 0.2907 -0.19394 2019 10 10 58766 0.1928 0.2896 -0.19455 2019 10 11 58767 0.1917 0.2886 -0.19527 2019 10 12 58768 0.1906 0.2875 -0.19608 2019 10 13 58769 0.1895 0.2865 -0.19698 2019 10 14 58770 0.1883 0.2855 -0.19793 2019 10 15 58771 0.1871 0.2845 -0.19889 2019 10 16 58772 0.1859 0.2835 -0.19980 2019 10 17 58773 0.1847 0.2826 -0.20063 2019 10 18 58774 0.1835 0.2816 -0.20135 2019 10 19 58775 0.1822 0.2807 -0.20195 2019 10 20 58776 0.1810 0.2798 -0.20247 2019 10 21 58777 0.1797 0.2790 -0.20298 2019 10 22 58778 0.1784 0.2781 -0.20357 2019 10 23 58779 0.1770 0.2773 -0.20433 2019 10 24 58780 0.1757 0.2765 -0.20534 2019 10 25 58781 0.1743 0.2757 -0.20661 2019 10 26 58782 0.1729 0.2749 -0.20809 2019 10 27 58783 0.1715 0.2741 -0.20968 2019 10 28 58784 0.1701 0.2734 -0.21127 2019 10 29 58785 0.1687 0.2727 -0.21275 2019 10 30 58786 0.1673 0.2720 -0.21400 2019 10 31 58787 0.1658 0.2714 -0.21496 2019 11 1 58788 0.1643 0.2707 -0.21575 2019 11 2 58789 0.1628 0.2701 -0.21651 2019 11 3 58790 0.1613 0.2695 -0.21722 2019 11 4 58791 0.1598 0.2689 -0.21796 2019 11 5 58792 0.1583 0.2684 -0.21878 2019 11 6 58793 0.1568 0.2679 -0.21966 2019 11 7 58794 0.1552 0.2674 -0.22064 2019 11 8 58795 0.1537 0.2669 -0.22176 2019 11 9 58796 0.1521 0.2665 -0.22295 2019 11 10 58797 0.1505 0.2660 -0.22420 2019 11 11 58798 0.1489 0.2656 -0.22545 2019 11 12 58799 0.1473 0.2653 -0.22669 2019 11 13 58800 0.1457 0.2649 -0.22791 2019 11 14 58801 0.1441 0.2646 -0.22902 2019 11 15 58802 0.1425 0.2643 -0.22998 2019 11 16 58803 0.1408 0.2640 -0.23081 2019 11 17 58804 0.1392 0.2638 -0.23158 2019 11 18 58805 0.1376 0.2635 -0.23238 2019 11 19 58806 0.1359 0.2633 -0.23332 2019 11 20 58807 0.1342 0.2632 -0.23443 2019 11 21 58808 0.1326 0.2630 -0.23576 2019 11 22 58809 0.1309 0.2629 -0.23733 2019 11 23 58810 0.1293 0.2628 -0.23904 2019 11 24 58811 0.1276 0.2627 -0.24075 2019 11 25 58812 0.1259 0.2627 -0.24235 2019 11 26 58813 0.1242 0.2627 -0.24377 2019 11 27 58814 0.1226 0.2627 -0.24503 2019 11 28 58815 0.1209 0.2627 -0.24613 2019 11 29 58816 0.1192 0.2628 -0.24713 2019 11 30 58817 0.1175 0.2629 -0.24806 2019 12 1 58818 0.1158 0.2630 -0.24894 2019 12 2 58819 0.1142 0.2631 -0.24983 2019 12 3 58820 0.1125 0.2633 -0.25076 2019 12 4 58821 0.1108 0.2635 -0.25175 2019 12 5 58822 0.1091 0.2637 -0.25283 2019 12 6 58823 0.1075 0.2639 -0.25402 2019 12 7 58824 0.1058 0.2642 -0.25530 2019 12 8 58825 0.1041 0.2645 -0.25658 2019 12 9 58826 0.1025 0.2648 -0.25780 2019 12 10 58827 0.1008 0.2652 -0.25889 2019 12 11 58828 0.0992 0.2655 -0.25982 2019 12 12 58829 0.0975 0.2659 -0.26059 2019 12 13 58830 0.0959 0.2664 -0.26125 2019 12 14 58831 0.0943 0.2668 -0.26186 2019 12 15 58832 0.0927 0.2673 -0.26253 2019 12 16 58833 0.0910 0.2678 -0.26329 2019 12 17 58834 0.0894 0.2683 -0.26413 2019 12 18 58835 0.0878 0.2689 -0.26510 2019 12 19 58836 0.0863 0.2695 -0.26616 2019 12 20 58837 0.0847 0.2701 -0.26729 2019 12 21 58838 0.0831 0.2707 -0.26839 2019 12 22 58839 0.0816 0.2713 -0.26933 2019 12 23 58840 0.0800 0.2720 -0.27011 2019 12 24 58841 0.0785 0.2727 -0.27067 2019 12 25 58842 0.0770 0.2734 -0.27104 2019 12 26 58843 0.0755 0.2742 -0.27128 2019 12 27 58844 0.0740 0.2750 -0.27145 2019 12 28 58845 0.0725 0.2758 -0.27161 2019 12 29 58846 0.0710 0.2766 -0.27171 2019 12 30 58847 0.0696 0.2774 -0.27186 2019 12 31 58848 0.0682 0.2783 -0.27215 2020 1 1 58849 0.0667 0.2792 -0.27254 2020 1 2 58850 0.0653 0.2801 -0.27309 2020 1 3 58851 0.0640 0.2810 -0.27376 2020 1 4 58852 0.0626 0.2820 -0.27452 2020 1 5 58853 0.0612 0.2829 -0.27533 2020 1 6 58854 0.0599 0.2839 -0.27613 2020 1 7 58855 0.0586 0.2849 -0.27683 2020 1 8 58856 0.0573 0.2860 -0.27741 2020 1 9 58857 0.0560 0.2870 -0.27794 2020 1 10 58858 0.0548 0.2881 -0.27841 2020 1 11 58859 0.0535 0.2892 -0.27894 2020 1 12 58860 0.0523 0.2903 -0.27959 2020 1 13 58861 0.0511 0.2915 -0.28042 2020 1 14 58862 0.0500 0.2926 -0.28150 2020 1 15 58863 0.0488 0.2938 -0.28281 2020 1 16 58864 0.0477 0.2950 -0.28429 2020 1 17 58865 0.0466 0.2962 -0.28576 2020 1 18 58866 0.0455 0.2974 -0.28717 2020 1 19 58867 0.0444 0.2987 -0.28845 2020 1 20 58868 0.0434 0.2999 -0.28953 2020 1 21 58869 0.0424 0.3012 -0.29046 2020 1 22 58870 0.0414 0.3025 -0.29122 2020 1 23 58871 0.0404 0.3038 -0.29188 2020 1 24 58872 0.0395 0.3051 -0.29248 2020 1 25 58873 0.0386 0.3065 -0.29309 2020 1 26 58874 0.0377 0.3078 -0.29373 2020 1 27 58875 0.0368 0.3092 -0.29444 2020 1 28 58876 0.0360 0.3106 -0.29531 2020 1 29 58877 0.0352 0.3120 -0.29631 2020 1 30 58878 0.0344 0.3134 -0.29735 2020 1 31 58879 0.0337 0.3148 -0.29838 2020 2 1 58880 0.0329 0.3162 -0.29940 2020 2 2 58881 0.0322 0.3177 -0.30038 2020 2 3 58882 0.0316 0.3191 -0.30124 2020 2 4 58883 0.0309 0.3206 -0.30194 2020 2 5 58884 0.0303 0.3221 -0.30251 2020 2 6 58885 0.0297 0.3236 -0.30301 2020 2 7 58886 0.0291 0.3251 -0.30344 2020 2 8 58887 0.0286 0.3266 -0.30396 2020 2 9 58888 0.0281 0.3281 -0.30458 2020 2 10 58889 0.0276 0.3296 -0.30546 2020 2 11 58890 0.0272 0.3311 -0.30661 2020 2 12 58891 0.0268 0.3327 -0.30796 2020 2 13 58892 0.0264 0.3342 -0.30944 2020 2 14 58893 0.0260 0.3358 -0.31085 2020 2 15 58894 0.0257 0.3373 -0.31214 2020 2 16 58895 0.0254 0.3389 -0.31329 2020 2 17 58896 0.0251 0.3405 -0.31423 2020 2 18 58897 0.0249 0.3420 -0.31499 2020 2 19 58898 0.0247 0.3436 -0.31566 2020 2 20 58899 0.0245 0.3452 -0.31633 2020 2 21 58900 0.0244 0.3468 -0.31700 2020 2 22 58901 0.0243 0.3484 -0.31774 2020 2 23 58902 0.0242 0.3500 -0.31859 2020 2 24 58903 0.0241 0.3515 -0.31956 2020 2 25 58904 0.0241 0.3531 -0.32061 2020 2 26 58905 0.0241 0.3547 -0.32175 2020 2 27 58906 0.0242 0.3563 -0.32302 2020 2 28 58907 0.0242 0.3579 -0.32427 2020 2 29 58908 0.0243 0.3595 -0.32548 2020 3 1 58909 0.0245 0.3611 -0.32661 2020 3 2 58910 0.0246 0.3627 -0.32765 2020 3 3 58911 0.0248 0.3643 -0.32852 2020 3 4 58912 0.0251 0.3659 -0.32926 2020 3 5 58913 0.0253 0.3674 -0.32993 2020 3 6 58914 0.0256 0.3690 -0.33060 2020 3 7 58915 0.0259 0.3706 -0.33138 2020 3 8 58916 0.0263 0.3722 -0.33232 2020 3 9 58917 0.0267 0.3737 -0.33355 2020 3 10 58918 0.0271 0.3753 -0.33505 2020 3 11 58919 0.0275 0.3768 -0.33665 2020 3 12 58920 0.0280 0.3784 -0.33816 2020 3 13 58921 0.0285 0.3799 -0.33952 2020 3 14 58922 0.0291 0.3815 -0.34068 2020 3 15 58923 0.0296 0.3830 -0.34161 2020 3 16 58924 0.0302 0.3845 -0.34234 2020 3 17 58925 0.0308 0.3860 -0.34298 2020 3 18 58926 0.0315 0.3875 -0.34356 2020 3 19 58927 0.0322 0.3890 -0.34414 2020 3 20 58928 0.0329 0.3905 -0.34475 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) 58537 -105.59 0.61 -8.74 0.28 58538 -105.95 0.67 -8.55 0.20 58539 -106.12 0.67 -8.53 0.20 58540 -106.13 0.70 -8.78 0.22 58541 -106.21 0.68 -9.14 0.24 58542 -106.41 0.68 -9.41 0.24 58543 -106.50 0.68 -9.51 0.24 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58537 0.235 0.244 -0.299 0.280 58538 0.241 0.268 -0.290 0.205 58539 0.248 0.268 -0.280 0.205 58540 0.254 0.277 -0.270 0.219 58541 0.258 0.270 -0.262 0.236 58542 0.262 0.270 -0.257 0.236 58543 0.264 0.270 -0.253 0.236 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).