********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 14 March 2019 Vol. XXXII No. 011 ______________________________________________________________________ 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 8 58550 0.04568 .00009 0.35572 .00009 -0.093807 0.000012 19 3 9 58551 0.04549 .00009 0.35683 .00009 -0.094809 0.000015 19 3 10 58552 0.04535 .00009 0.35784 .00009 -0.095861 0.000019 19 3 11 58553 0.04543 .00009 0.35910 .00009 -0.096931 0.000017 19 3 12 58554 0.04535 .00009 0.36051 .00009 -0.097947 0.000017 19 3 13 58555 0.04501 .00009 0.36184 .00009 -0.098845 0.000017 19 3 14 58556 0.04462 .00009 0.36312 .00009 -0.099635 0.000055 IERS Final Values MJD x y UT1-UTC " " s 19 1 2 58485 0.0844 0.2720 -0.03702 19 1 3 58486 0.0818 0.2726 -0.03781 19 1 4 58487 0.0790 0.2726 -0.03834 19 1 5 58488 0.0764 0.2725 -0.03884 19 1 6 58489 0.0742 0.2729 -0.03920 19 1 7 58490 0.0722 0.2734 -0.03954 19 1 8 58491 0.0711 0.2738 -0.03982 19 1 9 58492 0.0706 0.2748 -0.04018 19 1 10 58493 0.0698 0.2758 -0.04062 19 1 11 58494 0.0688 0.2760 -0.04113 19 1 12 58495 0.0683 0.2770 -0.04176 19 1 13 58496 0.0676 0.2784 -0.04249 19 1 14 58497 0.0670 0.2800 -0.04329 19 1 15 58498 0.0663 0.2820 -0.04417 19 1 16 58499 0.0656 0.2837 -0.04507 19 1 17 58500 0.0644 0.2855 -0.04595 19 1 18 58501 0.0630 0.2868 -0.04677 19 1 19 58502 0.0619 0.2877 -0.04753 19 1 20 58503 0.0609 0.2887 -0.04825 19 1 21 58504 0.0600 0.2896 -0.04904 19 1 22 58505 0.0595 0.2906 -0.04995 19 1 23 58506 0.0590 0.2920 -0.05103 19 1 24 58507 0.0584 0.2939 -0.05229 19 1 25 58508 0.0570 0.2959 -0.05368 19 1 26 58509 0.0554 0.2972 -0.05513 19 1 27 58510 0.0542 0.2986 -0.05654 19 1 28 58511 0.0534 0.3001 -0.05783 19 1 29 58512 0.0526 0.3016 -0.05896 19 1 30 58513 0.0516 0.3029 -0.05989 19 1 31 58514 0.0506 0.3043 -0.06063 19 2 1 58515 0.0498 0.3062 -0.06121 _______________________________________________________________________ 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 = 0.1264 - 0.0930 cos A + 0.0418 sin A + 0.0156 cos C - 0.0319 sin C y = 0.3511 + 0.0385 cos A + 0.0847 sin A - 0.0319 cos C - 0.0156 sin C UT1-UTC = -0.0957 - 0.00065 (MJD - 58564) - (UT2-UT1) where A = 2*pi*(MJD-58556)/365.25 and C = 2*pi*(MJD-58556)/435. TAI-UTC(MJD 58557) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58556)**0.80 S t = 0.00025 (MJD-58556)**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 15 58557 0.0443 0.3644 -0.10038 2019 3 16 58558 0.0442 0.3656 -0.10113 2019 3 17 58559 0.0441 0.3668 -0.10196 2019 3 18 58560 0.0442 0.3680 -0.10296 2019 3 19 58561 0.0444 0.3691 -0.10419 2019 3 20 58562 0.0447 0.3702 -0.10564 2019 3 21 58563 0.0450 0.3713 -0.10726 2019 3 22 58564 0.0453 0.3724 -0.10895 2019 3 23 58565 0.0458 0.3735 -0.11059 2019 3 24 58566 0.0463 0.3746 -0.11206 2019 3 25 58567 0.0469 0.3758 -0.11331 2019 3 26 58568 0.0475 0.3769 -0.11432 2019 3 27 58569 0.0482 0.3781 -0.11514 2019 3 28 58570 0.0489 0.3793 -0.11582 2019 3 29 58571 0.0496 0.3805 -0.11644 2019 3 30 58572 0.0503 0.3817 -0.11703 2019 3 31 58573 0.0510 0.3829 -0.11767 2019 4 1 58574 0.0517 0.3840 -0.11839 2019 4 2 58575 0.0524 0.3852 -0.11922 2019 4 3 58576 0.0531 0.3863 -0.12017 2019 4 4 58577 0.0538 0.3875 -0.12124 2019 4 5 58578 0.0546 0.3885 -0.12241 2019 4 6 58579 0.0554 0.3896 -0.12364 2019 4 7 58580 0.0562 0.3907 -0.12488 2019 4 8 58581 0.0570 0.3918 -0.12608 2019 4 9 58582 0.0578 0.3929 -0.12722 2019 4 10 58583 0.0586 0.3939 -0.12827 2019 4 11 58584 0.0595 0.3949 -0.12923 2019 4 12 58585 0.0605 0.3959 -0.13016 2019 4 13 58586 0.0614 0.3969 -0.13112 2019 4 14 58587 0.0624 0.3978 -0.13218 2019 4 15 58588 0.0635 0.3988 -0.13343 2019 4 16 58589 0.0645 0.3997 -0.13488 2019 4 17 58590 0.0656 0.4007 -0.13652 2019 4 18 58591 0.0666 0.4016 -0.13829 2019 4 19 58592 0.0678 0.4025 -0.14007 2019 4 20 58593 0.0689 0.4034 -0.14175 2019 4 21 58594 0.0700 0.4042 -0.14325 2019 4 22 58595 0.0712 0.4051 -0.14452 2019 4 23 58596 0.0724 0.4059 -0.14559 2019 4 24 58597 0.0736 0.4068 -0.14649 2019 4 25 58598 0.0748 0.4076 -0.14727 2019 4 26 58599 0.0760 0.4084 -0.14801 2019 4 27 58600 0.0772 0.4091 -0.14874 2019 4 28 58601 0.0785 0.4099 -0.14953 2019 4 29 58602 0.0798 0.4106 -0.15041 2019 4 30 58603 0.0810 0.4113 -0.15139 2019 5 1 58604 0.0823 0.4120 -0.15247 2019 5 2 58605 0.0836 0.4127 -0.15363 2019 5 3 58606 0.0850 0.4133 -0.15484 2019 5 4 58607 0.0863 0.4139 -0.15603 2019 5 5 58608 0.0877 0.4145 -0.15715 2019 5 6 58609 0.0890 0.4151 -0.15815 2019 5 7 58610 0.0904 0.4157 -0.15901 2019 5 8 58611 0.0918 0.4162 -0.15974 2019 5 9 58612 0.0932 0.4167 -0.16037 2019 5 10 58613 0.0946 0.4172 -0.16098 2019 5 11 58614 0.0961 0.4177 -0.16164 2019 5 12 58615 0.0975 0.4182 -0.16242 2019 5 13 58616 0.0989 0.4186 -0.16336 2019 5 14 58617 0.1004 0.4190 -0.16447 2019 5 15 58618 0.1019 0.4194 -0.16569 2019 5 16 58619 0.1033 0.4198 -0.16694 2019 5 17 58620 0.1048 0.4201 -0.16812 2019 5 18 58621 0.1063 0.4204 -0.16916 2019 5 19 58622 0.1078 0.4207 -0.16999 2019 5 20 58623 0.1093 0.4210 -0.17061 2019 5 21 58624 0.1108 0.4213 -0.17105 2019 5 22 58625 0.1124 0.4215 -0.17135 2019 5 23 58626 0.1139 0.4217 -0.17158 2019 5 24 58627 0.1154 0.4219 -0.17180 2019 5 25 58628 0.1169 0.4220 -0.17205 2019 5 26 58629 0.1185 0.4222 -0.17238 2019 5 27 58630 0.1200 0.4223 -0.17279 2019 5 28 58631 0.1216 0.4224 -0.17330 2019 5 29 58632 0.1231 0.4224 -0.17389 2019 5 30 58633 0.1246 0.4225 -0.17452 2019 5 31 58634 0.1262 0.4225 -0.17516 2019 6 1 58635 0.1277 0.4225 -0.17576 2019 6 2 58636 0.1293 0.4224 -0.17627 2019 6 3 58637 0.1308 0.4224 -0.17665 2019 6 4 58638 0.1324 0.4223 -0.17690 2019 6 5 58639 0.1339 0.4222 -0.17703 2019 6 6 58640 0.1355 0.4221 -0.17710 2019 6 7 58641 0.1370 0.4219 -0.17721 2019 6 8 58642 0.1386 0.4217 -0.17741 2019 6 9 58643 0.1401 0.4215 -0.17776 2019 6 10 58644 0.1417 0.4213 -0.17827 2019 6 11 58645 0.1432 0.4211 -0.17889 2019 6 12 58646 0.1447 0.4208 -0.17954 2019 6 13 58647 0.1463 0.4205 -0.18016 2019 6 14 58648 0.1478 0.4202 -0.18065 2019 6 15 58649 0.1493 0.4198 -0.18096 2019 6 16 58650 0.1508 0.4195 -0.18106 2019 6 17 58651 0.1523 0.4191 -0.18098 2019 6 18 58652 0.1538 0.4187 -0.18075 2019 6 19 58653 0.1553 0.4182 -0.18042 2019 6 20 58654 0.1568 0.4178 -0.18007 2019 6 21 58655 0.1582 0.4173 -0.17973 2019 6 22 58656 0.1597 0.4168 -0.17946 2019 6 23 58657 0.1612 0.4163 -0.17928 2019 6 24 58658 0.1626 0.4157 -0.17919 2019 6 25 58659 0.1640 0.4151 -0.17919 2019 6 26 58660 0.1655 0.4145 -0.17925 2019 6 27 58661 0.1669 0.4139 -0.17935 2019 6 28 58662 0.1683 0.4133 -0.17944 2019 6 29 58663 0.1697 0.4126 -0.17947 2019 6 30 58664 0.1710 0.4120 -0.17940 2019 7 1 58665 0.1724 0.4113 -0.17922 2019 7 2 58666 0.1737 0.4105 -0.17892 2019 7 3 58667 0.1751 0.4098 -0.17856 2019 7 4 58668 0.1764 0.4090 -0.17822 2019 7 5 58669 0.1777 0.4082 -0.17799 2019 7 6 58670 0.1790 0.4074 -0.17793 2019 7 7 58671 0.1803 0.4066 -0.17804 2019 7 8 58672 0.1815 0.4058 -0.17829 2019 7 9 58673 0.1828 0.4049 -0.17860 2019 7 10 58674 0.1840 0.4040 -0.17888 2019 7 11 58675 0.1852 0.4031 -0.17905 2019 7 12 58676 0.1864 0.4022 -0.17905 2019 7 13 58677 0.1876 0.4013 -0.17886 2019 7 14 58678 0.1887 0.4003 -0.17850 2019 7 15 58679 0.1899 0.3993 -0.17800 2019 7 16 58680 0.1910 0.3983 -0.17741 2019 7 17 58681 0.1921 0.3973 -0.17680 2019 7 18 58682 0.1932 0.3963 -0.17621 2019 7 19 58683 0.1942 0.3953 -0.17569 2019 7 20 58684 0.1952 0.3942 -0.17527 2019 7 21 58685 0.1963 0.3931 -0.17497 2019 7 22 58686 0.1973 0.3920 -0.17477 2019 7 23 58687 0.1982 0.3909 -0.17466 2019 7 24 58688 0.1992 0.3898 -0.17461 2019 7 25 58689 0.2001 0.3887 -0.17457 2019 7 26 58690 0.2010 0.3875 -0.17450 2019 7 27 58691 0.2019 0.3863 -0.17438 2019 7 28 58692 0.2028 0.3852 -0.17416 2019 7 29 58693 0.2036 0.3840 -0.17386 2019 7 30 58694 0.2044 0.3828 -0.17349 2019 7 31 58695 0.2052 0.3816 -0.17313 2019 8 1 58696 0.2060 0.3803 -0.17287 2019 8 2 58697 0.2067 0.3791 -0.17279 2019 8 3 58698 0.2075 0.3778 -0.17294 2019 8 4 58699 0.2082 0.3766 -0.17328 2019 8 5 58700 0.2088 0.3753 -0.17374 2019 8 6 58701 0.2095 0.3740 -0.17420 2019 8 7 58702 0.2101 0.3727 -0.17456 2019 8 8 58703 0.2107 0.3714 -0.17475 2019 8 9 58704 0.2112 0.3701 -0.17476 2019 8 10 58705 0.2118 0.3688 -0.17458 2019 8 11 58706 0.2123 0.3674 -0.17426 2019 8 12 58707 0.2128 0.3661 -0.17386 2019 8 13 58708 0.2132 0.3647 -0.17343 2019 8 14 58709 0.2137 0.3634 -0.17304 2019 8 15 58710 0.2141 0.3620 -0.17271 2019 8 16 58711 0.2145 0.3607 -0.17250 2019 8 17 58712 0.2148 0.3593 -0.17241 2019 8 18 58713 0.2151 0.3579 -0.17243 2019 8 19 58714 0.2154 0.3565 -0.17257 2019 8 20 58715 0.2157 0.3551 -0.17277 2019 8 21 58716 0.2160 0.3537 -0.17300 2019 8 22 58717 0.2162 0.3523 -0.17321 2019 8 23 58718 0.2164 0.3509 -0.17338 2019 8 24 58719 0.2165 0.3495 -0.17349 2019 8 25 58720 0.2166 0.3481 -0.17351 2019 8 26 58721 0.2168 0.3467 -0.17347 2019 8 27 58722 0.2168 0.3453 -0.17342 2019 8 28 58723 0.2169 0.3439 -0.17344 2019 8 29 58724 0.2169 0.3425 -0.17364 2019 8 30 58725 0.2169 0.3411 -0.17408 2019 8 31 58726 0.2168 0.3397 -0.17476 2019 9 1 58727 0.2168 0.3382 -0.17563 2019 9 2 58728 0.2167 0.3368 -0.17658 2019 9 3 58729 0.2166 0.3354 -0.17747 2019 9 4 58730 0.2164 0.3340 -0.17821 2019 9 5 58731 0.2162 0.3326 -0.17873 2019 9 6 58732 0.2160 0.3312 -0.17904 2019 9 7 58733 0.2158 0.3298 -0.17918 2019 9 8 58734 0.2155 0.3284 -0.17922 2019 9 9 58735 0.2152 0.3270 -0.17920 2019 9 10 58736 0.2149 0.3256 -0.17921 2019 9 11 58737 0.2145 0.3243 -0.17927 2019 9 12 58738 0.2142 0.3229 -0.17943 2019 9 13 58739 0.2138 0.3215 -0.17971 2019 9 14 58740 0.2133 0.3201 -0.18010 2019 9 15 58741 0.2129 0.3188 -0.18058 2019 9 16 58742 0.2124 0.3174 -0.18113 2019 9 17 58743 0.2119 0.3161 -0.18170 2019 9 18 58744 0.2113 0.3147 -0.18224 2019 9 19 58745 0.2107 0.3134 -0.18271 2019 9 20 58746 0.2101 0.3121 -0.18309 2019 9 21 58747 0.2095 0.3108 -0.18337 2019 9 22 58748 0.2089 0.3095 -0.18358 2019 9 23 58749 0.2082 0.3082 -0.18376 2019 9 24 58750 0.2075 0.3069 -0.18399 2019 9 25 58751 0.2068 0.3056 -0.18436 2019 9 26 58752 0.2060 0.3044 -0.18497 2019 9 27 58753 0.2052 0.3031 -0.18585 2019 9 28 58754 0.2044 0.3019 -0.18699 2019 9 29 58755 0.2036 0.3007 -0.18828 2019 9 30 58756 0.2027 0.2995 -0.18960 2019 10 1 58757 0.2018 0.2983 -0.19080 2019 10 2 58758 0.2009 0.2971 -0.19180 2019 10 3 58759 0.2000 0.2959 -0.19257 2019 10 4 58760 0.1990 0.2948 -0.19314 2019 10 5 58761 0.1981 0.2936 -0.19356 2019 10 6 58762 0.1971 0.2925 -0.19391 2019 10 7 58763 0.1960 0.2914 -0.19426 2019 10 8 58764 0.1950 0.2903 -0.19465 2019 10 9 58765 0.1939 0.2892 -0.19513 2019 10 10 58766 0.1928 0.2882 -0.19573 2019 10 11 58767 0.1917 0.2871 -0.19646 2019 10 12 58768 0.1906 0.2861 -0.19731 2019 10 13 58769 0.1894 0.2851 -0.19827 2019 10 14 58770 0.1882 0.2841 -0.19930 2019 10 15 58771 0.1870 0.2831 -0.20035 2019 10 16 58772 0.1858 0.2822 -0.20136 2019 10 17 58773 0.1846 0.2812 -0.20228 2019 10 18 58774 0.1833 0.2803 -0.20310 2019 10 19 58775 0.1820 0.2794 -0.20387 2019 10 20 58776 0.1807 0.2786 -0.20461 2019 10 21 58777 0.1794 0.2777 -0.20536 2019 10 22 58778 0.1781 0.2769 -0.20620 2019 10 23 58779 0.1767 0.2760 -0.20719 2019 10 24 58780 0.1754 0.2752 -0.20839 2019 10 25 58781 0.1740 0.2745 -0.20986 2019 10 26 58782 0.1726 0.2737 -0.21153 2019 10 27 58783 0.1711 0.2730 -0.21329 2019 10 28 58784 0.1697 0.2723 -0.21502 2019 10 29 58785 0.1683 0.2716 -0.21663 2019 10 30 58786 0.1668 0.2709 -0.21809 2019 10 31 58787 0.1653 0.2703 -0.21932 2019 11 1 58788 0.1638 0.2697 -0.22032 2019 11 2 58789 0.1623 0.2691 -0.22117 2019 11 3 58790 0.1608 0.2685 -0.22195 2019 11 4 58791 0.1593 0.2680 -0.22273 2019 11 5 58792 0.1577 0.2674 -0.22359 2019 11 6 58793 0.1562 0.2669 -0.22454 2019 11 7 58794 0.1546 0.2664 -0.22561 2019 11 8 58795 0.1530 0.2660 -0.22683 2019 11 9 58796 0.1514 0.2656 -0.22815 2019 11 10 58797 0.1498 0.2652 -0.22951 2019 11 11 58798 0.1482 0.2648 -0.23086 2019 11 12 58799 0.1466 0.2644 -0.23218 2019 11 13 58800 0.1450 0.2641 -0.23347 2019 11 14 58801 0.1434 0.2638 -0.23469 2019 11 15 58802 0.1417 0.2635 -0.23585 2019 11 16 58803 0.1401 0.2633 -0.23693 2019 11 17 58804 0.1384 0.2630 -0.23794 2019 11 18 58805 0.1368 0.2628 -0.23896 2019 11 19 58806 0.1351 0.2627 -0.24005 2019 11 20 58807 0.1334 0.2625 -0.24129 2019 11 21 58808 0.1318 0.2624 -0.24273 2019 11 22 58809 0.1301 0.2623 -0.24439 2019 11 23 58810 0.1284 0.2622 -0.24619 2019 11 24 58811 0.1267 0.2622 -0.24801 2019 11 25 58812 0.1250 0.2621 -0.24968 2019 11 26 58813 0.1233 0.2621 -0.25112 2019 11 27 58814 0.1217 0.2622 -0.25227 2019 11 28 58815 0.1200 0.2622 -0.25318 2019 11 29 58816 0.1183 0.2623 -0.25393 2019 11 30 58817 0.1166 0.2624 -0.25461 2019 12 1 58818 0.1149 0.2626 -0.25531 2019 12 2 58819 0.1132 0.2627 -0.25604 2019 12 3 58820 0.1115 0.2629 -0.25678 2019 12 4 58821 0.1098 0.2631 -0.25755 2019 12 5 58822 0.1082 0.2634 -0.25833 2019 12 6 58823 0.1065 0.2636 -0.25915 2019 12 7 58824 0.1048 0.2639 -0.25996 2019 12 8 58825 0.1032 0.2642 -0.26070 2019 12 9 58826 0.1015 0.2646 -0.26140 2019 12 10 58827 0.0998 0.2650 -0.26201 2019 12 11 58828 0.0982 0.2654 -0.26253 2019 12 12 58829 0.0965 0.2658 -0.26295 2019 12 13 58830 0.0949 0.2662 -0.26328 2019 12 14 58831 0.0933 0.2667 -0.26358 2019 12 15 58832 0.0916 0.2672 -0.26381 2019 12 16 58833 0.0900 0.2677 -0.26410 2019 12 17 58834 0.0884 0.2683 -0.26460 2019 12 18 58835 0.0868 0.2689 -0.26529 2019 12 19 58836 0.0852 0.2695 -0.26622 2019 12 20 58837 0.0837 0.2701 -0.26733 2019 12 21 58838 0.0821 0.2707 -0.26852 2019 12 22 58839 0.0806 0.2714 -0.26971 2019 12 23 58840 0.0790 0.2721 -0.27078 2019 12 24 58841 0.0775 0.2728 -0.27164 2019 12 25 58842 0.0760 0.2736 -0.27228 2019 12 26 58843 0.0745 0.2743 -0.27281 2019 12 27 58844 0.0730 0.2751 -0.27325 2019 12 28 58845 0.0715 0.2759 -0.27371 2019 12 29 58846 0.0701 0.2768 -0.27424 2019 12 30 58847 0.0686 0.2776 -0.27486 2019 12 31 58848 0.0672 0.2785 -0.27560 2020 1 1 58849 0.0658 0.2794 -0.27650 2020 1 2 58850 0.0644 0.2804 -0.27751 2020 1 3 58851 0.0630 0.2813 -0.27854 2020 1 4 58852 0.0617 0.2823 -0.27960 2020 1 5 58853 0.0603 0.2833 -0.28067 2020 1 6 58854 0.0590 0.2843 -0.28169 2020 1 7 58855 0.0577 0.2853 -0.28265 2020 1 8 58856 0.0564 0.2864 -0.28351 2020 1 9 58857 0.0551 0.2875 -0.28426 2020 1 10 58858 0.0539 0.2886 -0.28491 2020 1 11 58859 0.0527 0.2897 -0.28555 2020 1 12 58860 0.0515 0.2908 -0.28623 2020 1 13 58861 0.0503 0.2920 -0.28705 2020 1 14 58862 0.0491 0.2931 -0.28812 2020 1 15 58863 0.0480 0.2943 -0.28942 2020 1 16 58864 0.0469 0.2955 -0.29081 2020 1 17 58865 0.0458 0.2968 -0.29217 2020 1 18 58866 0.0447 0.2980 -0.29347 2020 1 19 58867 0.0437 0.2993 -0.29462 2020 1 20 58868 0.0426 0.3005 -0.29552 2020 1 21 58869 0.0416 0.3018 -0.29616 2020 1 22 58870 0.0407 0.3031 -0.29659 2020 1 23 58871 0.0397 0.3045 -0.29693 2020 1 24 58872 0.0388 0.3058 -0.29718 2020 1 25 58873 0.0379 0.3072 -0.29746 2020 1 26 58874 0.0370 0.3085 -0.29777 2020 1 27 58875 0.0362 0.3099 -0.29819 2020 1 28 58876 0.0354 0.3113 -0.29876 2020 1 29 58877 0.0346 0.3127 -0.29945 2020 1 30 58878 0.0338 0.3141 -0.30026 2020 1 31 58879 0.0331 0.3156 -0.30109 2020 2 1 58880 0.0324 0.3170 -0.30195 2020 2 2 58881 0.0317 0.3185 -0.30284 2020 2 3 58882 0.0310 0.3199 -0.30367 2020 2 4 58883 0.0304 0.3214 -0.30440 2020 2 5 58884 0.0298 0.3229 -0.30507 2020 2 6 58885 0.0292 0.3244 -0.30572 2020 2 7 58886 0.0287 0.3259 -0.30633 2020 2 8 58887 0.0282 0.3274 -0.30701 2020 2 9 58888 0.0277 0.3290 -0.30786 2020 2 10 58889 0.0272 0.3305 -0.30895 2020 2 11 58890 0.0268 0.3320 -0.31025 2020 2 12 58891 0.0264 0.3336 -0.31174 2020 2 13 58892 0.0260 0.3351 -0.31338 2020 2 14 58893 0.0257 0.3367 -0.31495 2020 2 15 58894 0.0254 0.3383 -0.31637 2020 2 16 58895 0.0251 0.3398 -0.31756 2020 2 17 58896 0.0249 0.3414 -0.31854 2020 2 18 58897 0.0247 0.3430 -0.31926 2020 2 19 58898 0.0245 0.3446 -0.31983 2020 2 20 58899 0.0243 0.3462 -0.32031 2020 2 21 58900 0.0242 0.3478 -0.32077 2020 2 22 58901 0.0241 0.3493 -0.32128 2020 2 23 58902 0.0241 0.3509 -0.32183 2020 2 24 58903 0.0241 0.3525 -0.32252 2020 2 25 58904 0.0241 0.3541 -0.32334 2020 2 26 58905 0.0241 0.3557 -0.32420 2020 2 27 58906 0.0242 0.3573 -0.32500 2020 2 28 58907 0.0243 0.3589 -0.32578 2020 2 29 58908 0.0244 0.3605 -0.32656 2020 3 1 58909 0.0245 0.3621 -0.32727 2020 3 2 58910 0.0247 0.3637 -0.32791 2020 3 3 58911 0.0250 0.3653 -0.32854 2020 3 4 58912 0.0252 0.3669 -0.32911 2020 3 5 58913 0.0255 0.3685 -0.32963 2020 3 6 58914 0.0258 0.3701 -0.33018 2020 3 7 58915 0.0262 0.3716 -0.33083 2020 3 8 58916 0.0265 0.3732 -0.33170 2020 3 9 58917 0.0270 0.3748 -0.33288 2020 3 10 58918 0.0274 0.3763 -0.33432 2020 3 11 58919 0.0279 0.3779 -0.33591 2020 3 12 58920 0.0284 0.3794 -0.33749 2020 3 13 58921 0.0289 0.3810 -0.33895 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) 58530 -106.88 0.56 -8.15 0.26 58531 -107.58 0.56 -8.57 0.26 58532 -107.62 0.61 -9.06 0.28 58533 -106.87 0.61 -9.27 0.29 58534 -105.90 0.61 -9.19 0.28 58535 -105.32 0.61 -9.05 0.28 58536 -105.31 0.61 -8.96 0.28 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58485 -107.8 -7.3 58486 -106.8 -7.4 58487 -106.7 -7.4 58488 -106.5 -7.5 58489 -106.2 -7.6 58490 -106.0 -7.6 58491 -105.9 -7.5 58492 -105.9 -7.5 58493 -106.1 -7.5 58494 -106.3 -7.6 58495 -106.3 -7.7 58496 -106.1 -7.7 58497 -106.2 -7.8 58498 -106.4 -7.8 58499 -106.5 -7.6 58500 -106.6 -7.3 58501 -106.9 -7.1 58502 -107.5 -7.2 58503 -107.9 -7.6 58504 -107.7 -7.9 58505 -106.8 -7.9 58506 -105.9 -7.7 58507 -105.5 -7.5 58508 -105.6 -7.5 58509 -105.9 -7.4 58510 -106.1 -7.3 58511 -106.2 -7.3 58512 -106.2 -7.5 58513 -106.4 -7.7 58514 -106.7 -7.8 58515 -106.8 -7.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58530 0.271 0.222 -0.212 0.258 58531 0.261 0.222 -0.235 0.258 58532 0.250 0.242 -0.259 0.285 58533 0.240 0.244 -0.283 0.290 58534 0.229 0.244 -0.308 0.280 58535 0.219 0.244 -0.333 0.280 58536 0.209 0.244 -0.358 0.280 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58485 0.00 0.00 58486 0.41 -0.08 58487 0.41 -0.11 58488 0.40 -0.12 58489 0.39 -0.13 58490 0.41 -0.15 58491 0.41 -0.16 58492 0.40 -0.16 58493 0.38 -0.16 58494 0.36 -0.16 58495 0.35 -0.15 58496 0.36 -0.15 58497 0.34 -0.15 58498 0.32 -0.15 58499 0.30 -0.14 58500 0.28 -0.14 58501 0.26 -0.14 58502 0.26 -0.15 58503 0.27 -0.16 58504 0.28 -0.17 58505 0.28 -0.19 58506 0.29 -0.20 58507 0.27 -0.21 58508 0.24 -0.22 58509 0.26 -0.21 58510 0.29 -0.20 58511 0.32 -0.18 58512 0.35 -0.17 58513 0.33 -0.17 58514 0.29 -0.16 58515 0.26 -0.16 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).