********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 22 August 2019 Vol. XXXII No. 034 ______________________________________________________________________ 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 * * https://maia.usno.navy.mil * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://toshi.nofs.navy.mil * * https://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. * * * * As of Bulletin A Vol. XXXII, No. 033, 22 Aug 2019, we have * * incorporated the new NASA Goddard VLBI solutions -- gsf2019a.eoxy * * gsf2019a.eopi. In addition small adjustments have been made to * * systematic corrections in UT1-UTC for the USNO VLBI solutions. * * The effect appears to be less than 0.1 mas in polar motion and * * 10 us in UT1-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 8 16 58711 0.21660 .00009 0.37667 .00009 -0.156229 0.000017 19 8 17 58712 0.21680 .00009 0.37560 .00009 -0.155830 0.000015 19 8 18 58713 0.21694 .00009 0.37444 .00009 -0.155510 0.000017 19 8 19 58714 0.21700 .00009 0.37319 .00009 -0.155217 0.000018 19 8 20 58715 0.21710 .00009 0.37185 .00009 -0.154985 0.000017 19 8 21 58716 0.21721 .00009 0.37035 .00009 -0.154841 0.000016 19 8 22 58717 0.21724 .00009 0.36877 .00009 -0.154734 0.000055 _______________________________________________________________________ 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 = 0.1283 + 0.0951 cos A + 0.0324 sin A - 0.0054 cos C - 0.0087 sin C y = 0.3475 + 0.0285 cos A - 0.0824 sin A - 0.0087 cos C + 0.0054 sin C UT1-UTC = -0.1733 - 0.00056 (MJD - 58725) - (UT2-UT1) where A = 2*pi*(MJD-58717)/365.25 and C = 2*pi*(MJD-58717)/435. TAI-UTC(MJD 58718) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58717)**0.80 S t = 0.00025 (MJD-58717)**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 8 23 58718 0.2173 0.3672 -0.15461 2019 8 24 58719 0.2174 0.3657 -0.15444 2019 8 25 58720 0.2175 0.3642 -0.15418 2019 8 26 58721 0.2175 0.3627 -0.15383 2019 8 27 58722 0.2176 0.3612 -0.15347 2019 8 28 58723 0.2176 0.3597 -0.15320 2019 8 29 58724 0.2176 0.3582 -0.15314 2019 8 30 58725 0.2176 0.3567 -0.15332 2019 8 31 58726 0.2176 0.3552 -0.15375 2019 9 1 58727 0.2176 0.3537 -0.15435 2019 9 2 58728 0.2175 0.3523 -0.15502 2019 9 3 58729 0.2175 0.3508 -0.15564 2019 9 4 58730 0.2174 0.3494 -0.15610 2019 9 5 58731 0.2173 0.3479 -0.15631 2019 9 6 58732 0.2171 0.3465 -0.15631 2019 9 7 58733 0.2169 0.3450 -0.15616 2019 9 8 58734 0.2167 0.3435 -0.15590 2019 9 9 58735 0.2165 0.3421 -0.15561 2019 9 10 58736 0.2162 0.3407 -0.15536 2019 9 11 58737 0.2160 0.3392 -0.15520 2019 9 12 58738 0.2157 0.3378 -0.15516 2019 9 13 58739 0.2153 0.3364 -0.15525 2019 9 14 58740 0.2150 0.3350 -0.15548 2019 9 15 58741 0.2146 0.3336 -0.15581 2019 9 16 58742 0.2141 0.3322 -0.15623 2019 9 17 58743 0.2137 0.3309 -0.15669 2019 9 18 58744 0.2132 0.3295 -0.15713 2019 9 19 58745 0.2126 0.3281 -0.15751 2019 9 20 58746 0.2121 0.3268 -0.15782 2019 9 21 58747 0.2115 0.3254 -0.15804 2019 9 22 58748 0.2109 0.3241 -0.15819 2019 9 23 58749 0.2103 0.3227 -0.15830 2019 9 24 58750 0.2096 0.3214 -0.15845 2019 9 25 58751 0.2089 0.3201 -0.15873 2019 9 26 58752 0.2082 0.3188 -0.15923 2019 9 27 58753 0.2075 0.3175 -0.15999 2019 9 28 58754 0.2067 0.3162 -0.16100 2019 9 29 58755 0.2059 0.3150 -0.16217 2019 9 30 58756 0.2050 0.3137 -0.16338 2019 10 1 58757 0.2042 0.3125 -0.16449 2019 10 2 58758 0.2033 0.3112 -0.16540 2019 10 3 58759 0.2024 0.3100 -0.16610 2019 10 4 58760 0.2015 0.3088 -0.16661 2019 10 5 58761 0.2005 0.3076 -0.16698 2019 10 6 58762 0.1995 0.3064 -0.16729 2019 10 7 58763 0.1985 0.3053 -0.16760 2019 10 8 58764 0.1975 0.3041 -0.16797 2019 10 9 58765 0.1964 0.3030 -0.16844 2019 10 10 58766 0.1954 0.3019 -0.16903 2019 10 11 58767 0.1943 0.3008 -0.16974 2019 10 12 58768 0.1931 0.2997 -0.17058 2019 10 13 58769 0.1920 0.2986 -0.17150 2019 10 14 58770 0.1908 0.2976 -0.17247 2019 10 15 58771 0.1896 0.2965 -0.17343 2019 10 16 58772 0.1884 0.2955 -0.17435 2019 10 17 58773 0.1872 0.2945 -0.17517 2019 10 18 58774 0.1859 0.2935 -0.17590 2019 10 19 58775 0.1846 0.2926 -0.17653 2019 10 20 58776 0.1833 0.2916 -0.17710 2019 10 21 58777 0.1820 0.2907 -0.17767 2019 10 22 58778 0.1807 0.2898 -0.17834 2019 10 23 58779 0.1793 0.2889 -0.17917 2019 10 24 58780 0.1780 0.2881 -0.18022 2019 10 25 58781 0.1766 0.2872 -0.18153 2019 10 26 58782 0.1752 0.2864 -0.18303 2019 10 27 58783 0.1737 0.2856 -0.18462 2019 10 28 58784 0.1723 0.2849 -0.18617 2019 10 29 58785 0.1708 0.2841 -0.18755 2019 10 30 58786 0.1694 0.2834 -0.18871 2019 10 31 58787 0.1679 0.2827 -0.18963 2019 11 1 58788 0.1664 0.2820 -0.19035 2019 11 2 58789 0.1648 0.2813 -0.19095 2019 11 3 58790 0.1633 0.2807 -0.19148 2019 11 4 58791 0.1618 0.2801 -0.19203 2019 11 5 58792 0.1602 0.2795 -0.19264 2019 11 6 58793 0.1586 0.2789 -0.19334 2019 11 7 58794 0.1570 0.2784 -0.19414 2019 11 8 58795 0.1554 0.2779 -0.19505 2019 11 9 58796 0.1538 0.2774 -0.19603 2019 11 10 58797 0.1522 0.2769 -0.19707 2019 11 11 58798 0.1506 0.2765 -0.19810 2019 11 12 58799 0.1489 0.2760 -0.19909 2019 11 13 58800 0.1473 0.2757 -0.19998 2019 11 14 58801 0.1456 0.2753 -0.20074 2019 11 15 58802 0.1440 0.2749 -0.20139 2019 11 16 58803 0.1423 0.2746 -0.20194 2019 11 17 58804 0.1406 0.2743 -0.20245 2019 11 18 58805 0.1389 0.2741 -0.20300 2019 11 19 58806 0.1372 0.2738 -0.20368 2019 11 20 58807 0.1355 0.2736 -0.20453 2019 11 21 58808 0.1338 0.2734 -0.20559 2019 11 22 58809 0.1321 0.2733 -0.20685 2019 11 23 58810 0.1304 0.2731 -0.20821 2019 11 24 58811 0.1287 0.2730 -0.20959 2019 11 25 58812 0.1270 0.2729 -0.21086 2019 11 26 58813 0.1253 0.2729 -0.21193 2019 11 27 58814 0.1235 0.2729 -0.21277 2019 11 28 58815 0.1218 0.2729 -0.21339 2019 11 29 58816 0.1201 0.2729 -0.21386 2019 11 30 58817 0.1183 0.2729 -0.21423 2019 12 1 58818 0.1166 0.2730 -0.21459 2019 12 2 58819 0.1149 0.2731 -0.21499 2019 12 3 58820 0.1132 0.2732 -0.21548 2019 12 4 58821 0.1114 0.2734 -0.21607 2019 12 5 58822 0.1097 0.2736 -0.21676 2019 12 6 58823 0.1080 0.2738 -0.21754 2019 12 7 58824 0.1063 0.2740 -0.21839 2019 12 8 58825 0.1046 0.2743 -0.21925 2019 12 9 58826 0.1029 0.2746 -0.22005 2019 12 10 58827 0.1012 0.2749 -0.22077 2019 12 11 58828 0.0995 0.2752 -0.22139 2019 12 12 58829 0.0978 0.2756 -0.22188 2019 12 13 58830 0.0961 0.2760 -0.22226 2019 12 14 58831 0.0944 0.2764 -0.22258 2019 12 15 58832 0.0928 0.2769 -0.22292 2019 12 16 58833 0.0911 0.2773 -0.22336 2019 12 17 58834 0.0894 0.2778 -0.22397 2019 12 18 58835 0.0878 0.2784 -0.22478 2019 12 19 58836 0.0862 0.2789 -0.22577 2019 12 20 58837 0.0845 0.2795 -0.22687 2019 12 21 58838 0.0829 0.2801 -0.22801 2019 12 22 58839 0.0813 0.2807 -0.22907 2019 12 23 58840 0.0797 0.2814 -0.22998 2019 12 24 58841 0.0782 0.2820 -0.23069 2019 12 25 58842 0.0766 0.2827 -0.23120 2019 12 26 58843 0.0750 0.2835 -0.23154 2019 12 27 58844 0.0735 0.2842 -0.23178 2019 12 28 58845 0.0720 0.2850 -0.23200 2019 12 29 58846 0.0705 0.2858 -0.23225 2019 12 30 58847 0.0690 0.2866 -0.23258 2019 12 31 58848 0.0675 0.2874 -0.23301 2020 1 1 58849 0.0660 0.2883 -0.23355 2020 1 2 58850 0.0646 0.2892 -0.23418 2020 1 3 58851 0.0632 0.2901 -0.23488 2020 1 4 58852 0.0617 0.2910 -0.23561 2020 1 5 58853 0.0604 0.2920 -0.23632 2020 1 6 58854 0.0590 0.2930 -0.23698 2020 1 7 58855 0.0576 0.2940 -0.23756 2020 1 8 58856 0.0563 0.2950 -0.23802 2020 1 9 58857 0.0550 0.2960 -0.23838 2020 1 10 58858 0.0537 0.2971 -0.23867 2020 1 11 58859 0.0524 0.2982 -0.23897 2020 1 12 58860 0.0511 0.2993 -0.23935 2020 1 13 58861 0.0499 0.3004 -0.23991 2020 1 14 58862 0.0487 0.3015 -0.24069 2020 1 15 58863 0.0475 0.3027 -0.24167 2020 1 16 58864 0.0463 0.3039 -0.24278 2020 1 17 58865 0.0452 0.3051 -0.24393 2020 1 18 58866 0.0441 0.3063 -0.24502 2020 1 19 58867 0.0430 0.3075 -0.24596 2020 1 20 58868 0.0419 0.3088 -0.24672 2020 1 21 58869 0.0408 0.3100 -0.24727 2020 1 22 58870 0.0398 0.3113 -0.24766 2020 1 23 58871 0.0388 0.3126 -0.24795 2020 1 24 58872 0.0378 0.3139 -0.24821 2020 1 25 58873 0.0369 0.3153 -0.24850 2020 1 26 58874 0.0360 0.3166 -0.24886 2020 1 27 58875 0.0351 0.3180 -0.24933 2020 1 28 58876 0.0342 0.3194 -0.24992 2020 1 29 58877 0.0333 0.3208 -0.25062 2020 1 30 58878 0.0325 0.3222 -0.25140 2020 1 31 58879 0.0317 0.3236 -0.25222 2020 2 1 58880 0.0310 0.3250 -0.25305 2020 2 2 58881 0.0302 0.3265 -0.25384 2020 2 3 58882 0.0295 0.3279 -0.25456 2020 2 4 58883 0.0289 0.3294 -0.25519 2020 2 5 58884 0.0282 0.3309 -0.25572 2020 2 6 58885 0.0276 0.3323 -0.25619 2020 2 7 58886 0.0270 0.3338 -0.25663 2020 2 8 58887 0.0264 0.3354 -0.25715 2020 2 9 58888 0.0259 0.3369 -0.25784 2020 2 10 58889 0.0254 0.3384 -0.25877 2020 2 11 58890 0.0249 0.3399 -0.25994 2020 2 12 58891 0.0245 0.3415 -0.26130 2020 2 13 58892 0.0241 0.3430 -0.26274 2020 2 14 58893 0.0237 0.3446 -0.26413 2020 2 15 58894 0.0233 0.3462 -0.26537 2020 2 16 58895 0.0230 0.3477 -0.26639 2020 2 17 58896 0.0227 0.3493 -0.26719 2020 2 18 58897 0.0225 0.3509 -0.26779 2020 2 19 58898 0.0223 0.3525 -0.26827 2020 2 20 58899 0.0221 0.3541 -0.26869 2020 2 21 58900 0.0219 0.3556 -0.26911 2020 2 22 58901 0.0218 0.3572 -0.26959 2020 2 23 58902 0.0217 0.3588 -0.27015 2020 2 24 58903 0.0216 0.3604 -0.27080 2020 2 25 58904 0.0216 0.3620 -0.27154 2020 2 26 58905 0.0215 0.3637 -0.27234 2020 2 27 58906 0.0216 0.3653 -0.27317 2020 2 28 58907 0.0216 0.3669 -0.27398 2020 2 29 58908 0.0217 0.3685 -0.27473 2020 3 1 58909 0.0218 0.3701 -0.27541 2020 3 2 58910 0.0220 0.3717 -0.27600 2020 3 3 58911 0.0222 0.3733 -0.27650 2020 3 4 58912 0.0224 0.3749 -0.27693 2020 3 5 58913 0.0226 0.3765 -0.27734 2020 3 6 58914 0.0229 0.3781 -0.27780 2020 3 7 58915 0.0232 0.3797 -0.27842 2020 3 8 58916 0.0236 0.3813 -0.27930 2020 3 9 58917 0.0239 0.3828 -0.28048 2020 3 10 58918 0.0243 0.3844 -0.28197 2020 3 11 58919 0.0248 0.3860 -0.28366 2020 3 12 58920 0.0252 0.3876 -0.28542 2020 3 13 58921 0.0257 0.3891 -0.28712 2020 3 14 58922 0.0263 0.3907 -0.28865 2020 3 15 58923 0.0268 0.3922 -0.28998 2020 3 16 58924 0.0274 0.3938 -0.29113 2020 3 17 58925 0.0280 0.3953 -0.29215 2020 3 18 58926 0.0287 0.3968 -0.29310 2020 3 19 58927 0.0294 0.3983 -0.29404 2020 3 20 58928 0.0301 0.3998 -0.29504 2020 3 21 58929 0.0308 0.4013 -0.29612 2020 3 22 58930 0.0316 0.4028 -0.29732 2020 3 23 58931 0.0324 0.4043 -0.29863 2020 3 24 58932 0.0332 0.4057 -0.30002 2020 3 25 58933 0.0341 0.4072 -0.30146 2020 3 26 58934 0.0350 0.4086 -0.30289 2020 3 27 58935 0.0359 0.4100 -0.30428 2020 3 28 58936 0.0368 0.4115 -0.30561 2020 3 29 58937 0.0378 0.4129 -0.30686 2020 3 30 58938 0.0388 0.4142 -0.30803 2020 3 31 58939 0.0398 0.4156 -0.30912 2020 4 1 58940 0.0409 0.4170 -0.31017 2020 4 2 58941 0.0419 0.4183 -0.31120 2020 4 3 58942 0.0430 0.4196 -0.31227 2020 4 4 58943 0.0442 0.4209 -0.31351 2020 4 5 58944 0.0453 0.4222 -0.31498 2020 4 6 58945 0.0465 0.4235 -0.31670 2020 4 7 58946 0.0477 0.4247 -0.31867 2020 4 8 58947 0.0490 0.4260 -0.32074 2020 4 9 58948 0.0502 0.4272 -0.32274 2020 4 10 58949 0.0515 0.4284 -0.32454 2020 4 11 58950 0.0528 0.4296 -0.32603 2020 4 12 58951 0.0542 0.4307 -0.32722 2020 4 13 58952 0.0555 0.4319 -0.32817 2020 4 14 58953 0.0569 0.4330 -0.32894 2020 4 15 58954 0.0583 0.4341 -0.32962 2020 4 16 58955 0.0597 0.4352 -0.33032 2020 4 17 58956 0.0612 0.4362 -0.33109 2020 4 18 58957 0.0626 0.4372 -0.33193 2020 4 19 58958 0.0641 0.4383 -0.33295 2020 4 20 58959 0.0656 0.4393 -0.33406 2020 4 21 58960 0.0672 0.4402 -0.33526 2020 4 22 58961 0.0687 0.4412 -0.33651 2020 4 23 58962 0.0703 0.4421 -0.33777 2020 4 24 58963 0.0719 0.4430 -0.33896 2020 4 25 58964 0.0735 0.4439 -0.33997 2020 4 26 58965 0.0751 0.4447 -0.34091 2020 4 27 58966 0.0767 0.4456 -0.34172 2020 4 28 58967 0.0784 0.4464 -0.34237 2020 4 29 58968 0.0801 0.4471 -0.34290 2020 4 30 58969 0.0817 0.4479 -0.34344 2020 5 1 58970 0.0834 0.4486 -0.34409 2020 5 2 58971 0.0852 0.4493 -0.34488 2020 5 3 58972 0.0869 0.4500 -0.34589 2020 5 4 58973 0.0886 0.4506 -0.34712 2020 5 5 58974 0.0904 0.4513 -0.34852 2020 5 6 58975 0.0922 0.4519 -0.34994 2020 5 7 58976 0.0940 0.4524 -0.35120 2020 5 8 58977 0.0958 0.4530 -0.35224 2020 5 9 58978 0.0976 0.4535 -0.35304 2020 5 10 58979 0.0994 0.4540 -0.35366 2020 5 11 58980 0.1012 0.4545 -0.35418 2020 5 12 58981 0.1031 0.4549 -0.35460 2020 5 13 58982 0.1049 0.4553 -0.35497 2020 5 14 58983 0.1068 0.4557 -0.35536 2020 5 15 58984 0.1086 0.4560 -0.35583 2020 5 16 58985 0.1105 0.4564 -0.35641 2020 5 17 58986 0.1124 0.4567 -0.35711 2020 5 18 58987 0.1143 0.4569 -0.35788 2020 5 19 58988 0.1162 0.4572 -0.35862 2020 5 20 58989 0.1181 0.4574 -0.35930 2020 5 21 58990 0.1200 0.4575 -0.35988 2020 5 22 58991 0.1219 0.4577 -0.36033 2020 5 23 58992 0.1238 0.4578 -0.36055 2020 5 24 58993 0.1257 0.4579 -0.36059 2020 5 25 58994 0.1276 0.4580 -0.36054 2020 5 26 58995 0.1295 0.4580 -0.36052 2020 5 27 58996 0.1314 0.4580 -0.36057 2020 5 28 58997 0.1334 0.4580 -0.36075 2020 5 29 58998 0.1353 0.4579 -0.36114 2020 5 30 58999 0.1372 0.4579 -0.36177 2020 5 31 59000 0.1391 0.4578 -0.36264 2020 6 1 59001 0.1410 0.4576 -0.36369 2020 6 2 59002 0.1430 0.4575 -0.36482 2020 6 3 59003 0.1449 0.4573 -0.36590 2020 6 4 59004 0.1468 0.4570 -0.36684 2020 6 5 59005 0.1487 0.4568 -0.36754 2020 6 6 59006 0.1506 0.4565 -0.36795 2020 6 7 59007 0.1525 0.4562 -0.36814 2020 6 8 59008 0.1544 0.4558 -0.36817 2020 6 9 59009 0.1563 0.4555 -0.36815 2020 6 10 59010 0.1581 0.4551 -0.36811 2020 6 11 59011 0.1600 0.4546 -0.36811 2020 6 12 59012 0.1619 0.4542 -0.36822 2020 6 13 59013 0.1637 0.4537 -0.36844 2020 6 14 59014 0.1656 0.4532 -0.36874 2020 6 15 59015 0.1674 0.4526 -0.36906 2020 6 16 59016 0.1692 0.4521 -0.36932 2020 6 17 59017 0.1711 0.4515 -0.36951 2020 6 18 59018 0.1729 0.4508 -0.36953 2020 6 19 59019 0.1747 0.4502 -0.36937 2020 6 20 59020 0.1765 0.4495 -0.36904 2020 6 21 59021 0.1782 0.4488 -0.36852 2020 6 22 59022 0.1800 0.4481 -0.36790 2020 6 23 59023 0.1817 0.4473 -0.36725 2020 6 24 59024 0.1835 0.4465 -0.36666 2020 6 25 59025 0.1852 0.4457 -0.36629 2020 6 26 59026 0.1869 0.4448 -0.36620 2020 6 27 59027 0.1885 0.4440 -0.36634 2020 6 28 59028 0.1902 0.4431 -0.36666 2020 6 29 59029 0.1919 0.4422 -0.36709 2020 6 30 59030 0.1935 0.4412 -0.36753 2020 7 1 59031 0.1951 0.4402 -0.36787 2020 7 2 59032 0.1967 0.4392 -0.36801 2020 7 3 59033 0.1983 0.4382 -0.36789 2020 7 4 59034 0.1998 0.4372 -0.36755 2020 7 5 59035 0.2014 0.4361 -0.36706 2020 7 6 59036 0.2029 0.4350 -0.36646 2020 7 7 59037 0.2044 0.4339 -0.36585 2020 7 8 59038 0.2059 0.4328 -0.36529 2020 7 9 59039 0.2073 0.4316 -0.36477 2020 7 10 59040 0.2088 0.4304 -0.36436 2020 7 11 59041 0.2102 0.4292 -0.36405 2020 7 12 59042 0.2116 0.4280 -0.36379 2020 7 13 59043 0.2129 0.4267 -0.36354 2020 7 14 59044 0.2143 0.4255 -0.36330 2020 7 15 59045 0.2156 0.4242 -0.36305 2020 7 16 59046 0.2169 0.4228 -0.36270 2020 7 17 59047 0.2181 0.4215 -0.36225 2020 7 18 59048 0.2194 0.4202 -0.36170 2020 7 19 59049 0.2206 0.4188 -0.36107 2020 7 20 59050 0.2218 0.4174 -0.36044 2020 7 21 59051 0.2229 0.4160 -0.35990 2020 7 22 59052 0.2241 0.4146 -0.35950 2020 7 23 59053 0.2252 0.4131 -0.35934 2020 7 24 59054 0.2263 0.4117 -0.35944 2020 7 25 59055 0.2273 0.4102 -0.35966 2020 7 26 59056 0.2283 0.4087 -0.35997 2020 7 27 59057 0.2293 0.4072 -0.36029 2020 7 28 59058 0.2303 0.4056 -0.36052 2020 7 29 59059 0.2312 0.4041 -0.36055 2020 7 30 59060 0.2321 0.4025 -0.36036 2020 7 31 59061 0.2330 0.4010 -0.35997 2020 8 1 59062 0.2339 0.3994 -0.35941 2020 8 2 59063 0.2347 0.3978 -0.35875 2020 8 3 59064 0.2355 0.3962 -0.35815 2020 8 4 59065 0.2362 0.3945 -0.35762 2020 8 5 59066 0.2369 0.3929 -0.35719 2020 8 6 59067 0.2376 0.3913 -0.35684 2020 8 7 59068 0.2383 0.3896 -0.35661 2020 8 8 59069 0.2389 0.3879 -0.35643 2020 8 9 59070 0.2395 0.3862 -0.35627 2020 8 10 59071 0.2401 0.3846 -0.35612 2020 8 11 59072 0.2406 0.3829 -0.35592 2020 8 12 59073 0.2411 0.3811 -0.35561 2020 8 13 59074 0.2415 0.3794 -0.35523 2020 8 14 59075 0.2420 0.3777 -0.35477 2020 8 15 59076 0.2424 0.3760 -0.35426 2020 8 16 59077 0.2427 0.3742 -0.35379 2020 8 17 59078 0.2431 0.3725 -0.35340 2020 8 18 59079 0.2434 0.3707 -0.35314 2020 8 19 59080 0.2436 0.3690 -0.35306 2020 8 20 59081 0.2438 0.3672 -0.35321 2020 8 21 59082 0.2440 0.3655 -0.35361 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) 58695 -115.49 0.10 -11.26 0.07 58696 -115.31 0.10 -11.34 0.07 58697 -115.05 0.10 -11.19 0.07 58698 -114.96 0.10 -10.98 0.03 58699 -115.23 0.22 -10.91 0.08 58700 -115.71 0.22 -10.96 0.08 58701 -116.14 0.29 -11.00 0.10 58702 -116.31 0.25 -11.02 0.09 58703 -116.26 0.25 -11.08 0.09 58704 -116.20 0.25 -11.19 0.09 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58695 -0.034 0.042 -0.095 0.067 58696 -0.039 0.042 -0.084 0.067 58697 -0.044 0.042 -0.075 0.067 58698 -0.051 0.041 -0.069 0.033 58699 -0.057 0.088 -0.065 0.078 58700 -0.063 0.088 -0.062 0.078 58701 -0.068 0.115 -0.058 0.105 58702 -0.070 0.101 -0.054 0.088 58703 -0.070 0.101 -0.048 0.088 58704 -0.069 0.101 -0.041 0.088 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).