********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 8 August 2019 Vol. XXXII No. 032 ______________________________________________________________________ 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. 031, 01 Aug 2019, we have * * incorporated the new USNO VLBI solutions -- usno2019c.eoxy and * * usno2019c.eopi. 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 2 58697 0.20629 .00009 0.39119 .00009 -0.159853 0.000015 19 8 3 58698 0.20784 .00009 0.39019 .00009 -0.159765 0.000013 19 8 4 58699 0.20928 .00009 0.38937 .00009 -0.159888 0.000011 19 8 5 58700 0.21053 .00009 0.38877 .00009 -0.160152 0.000010 19 8 6 58701 0.21155 .00009 0.38834 .00009 -0.160441 0.000011 19 8 7 58702 0.21230 .00009 0.38792 .00009 -0.160652 0.000012 19 8 8 58703 0.21279 .00009 0.38743 .00009 -0.160683 0.000010 IERS Final Values MJD x y UT1-UTC " " s 19 6 2 58636 0.1118 0.4297 -0.17059 19 6 3 58637 0.1144 0.4303 -0.17098 19 6 4 58638 0.1170 0.4309 -0.17123 19 6 5 58639 0.1192 0.4313 -0.17140 19 6 6 58640 0.1211 0.4314 -0.17154 19 6 7 58641 0.1227 0.4309 -0.17166 19 6 8 58642 0.1245 0.4306 -0.17184 19 6 9 58643 0.1262 0.4301 -0.17214 19 6 10 58644 0.1283 0.4299 -0.17260 19 6 11 58645 0.1304 0.4297 -0.17321 19 6 12 58646 0.1323 0.4296 -0.17388 19 6 13 58647 0.1344 0.4294 -0.17450 19 6 14 58648 0.1367 0.4292 -0.17502 19 6 15 58649 0.1387 0.4290 -0.17536 19 6 16 58650 0.1402 0.4287 -0.17548 19 6 17 58651 0.1417 0.4281 -0.17540 19 6 18 58652 0.1433 0.4275 -0.17525 19 6 19 58653 0.1445 0.4268 -0.17501 19 6 20 58654 0.1458 0.4262 -0.17477 19 6 21 58655 0.1472 0.4260 -0.17458 19 6 22 58656 0.1484 0.4259 -0.17445 19 6 23 58657 0.1494 0.4258 -0.17437 19 6 24 58658 0.1496 0.4254 -0.17436 19 6 25 58659 0.1504 0.4245 -0.17442 19 6 26 58660 0.1515 0.4236 -0.17448 19 6 27 58661 0.1531 0.4225 -0.17453 19 6 28 58662 0.1549 0.4221 -0.17456 19 6 29 58663 0.1565 0.4218 -0.17453 19 6 30 58664 0.1578 0.4214 -0.17443 19 7 1 58665 0.1585 0.4207 -0.17418 _______________________________________________________________________ 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 = 0.1387 + 0.0826 cos A + 0.0446 sin A - 0.0061 cos C - 0.0009 sin C y = 0.3498 + 0.0398 cos A - 0.0713 sin A - 0.0009 cos C + 0.0061 sin C UT1-UTC = -0.1703 - 0.00058 (MJD - 58711) - (UT2-UT1) where A = 2*pi*(MJD-58703)/365.25 and C = 2*pi*(MJD-58703)/435. TAI-UTC(MJD 58704) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58703)**0.80 S t = 0.00025 (MJD-58703)**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 9 58704 0.2132 0.3867 -0.16053 2019 8 10 58705 0.2136 0.3858 -0.16020 2019 8 11 58706 0.2141 0.3847 -0.15971 2019 8 12 58707 0.2146 0.3835 -0.15911 2019 8 13 58708 0.2151 0.3822 -0.15846 2019 8 14 58709 0.2156 0.3810 -0.15784 2019 8 15 58710 0.2161 0.3798 -0.15731 2019 8 16 58711 0.2165 0.3786 -0.15689 2019 8 17 58712 0.2168 0.3774 -0.15660 2019 8 18 58713 0.2171 0.3760 -0.15641 2019 8 19 58714 0.2173 0.3746 -0.15633 2019 8 20 58715 0.2175 0.3732 -0.15634 2019 8 21 58716 0.2178 0.3718 -0.15639 2019 8 22 58717 0.2180 0.3703 -0.15643 2019 8 23 58718 0.2183 0.3689 -0.15641 2019 8 24 58719 0.2185 0.3675 -0.15630 2019 8 25 58720 0.2186 0.3660 -0.15612 2019 8 26 58721 0.2188 0.3646 -0.15586 2019 8 27 58722 0.2189 0.3631 -0.15559 2019 8 28 58723 0.2190 0.3616 -0.15538 2019 8 29 58724 0.2191 0.3600 -0.15533 2019 8 30 58725 0.2191 0.3585 -0.15552 2019 8 31 58726 0.2191 0.3570 -0.15596 2019 9 1 58727 0.2192 0.3555 -0.15658 2019 9 2 58728 0.2192 0.3540 -0.15727 2019 9 3 58729 0.2191 0.3525 -0.15790 2019 9 4 58730 0.2190 0.3510 -0.15837 2019 9 5 58731 0.2189 0.3496 -0.15864 2019 9 6 58732 0.2188 0.3481 -0.15870 2019 9 7 58733 0.2186 0.3466 -0.15860 2019 9 8 58734 0.2184 0.3451 -0.15840 2019 9 9 58735 0.2182 0.3436 -0.15818 2019 9 10 58736 0.2179 0.3421 -0.15798 2019 9 11 58737 0.2177 0.3406 -0.15787 2019 9 12 58738 0.2173 0.3392 -0.15789 2019 9 13 58739 0.2170 0.3377 -0.15804 2019 9 14 58740 0.2166 0.3363 -0.15835 2019 9 15 58741 0.2162 0.3348 -0.15878 2019 9 16 58742 0.2158 0.3334 -0.15930 2019 9 17 58743 0.2153 0.3319 -0.15987 2019 9 18 58744 0.2148 0.3305 -0.16044 2019 9 19 58745 0.2143 0.3291 -0.16096 2019 9 20 58746 0.2138 0.3276 -0.16141 2019 9 21 58747 0.2132 0.3262 -0.16178 2019 9 22 58748 0.2126 0.3248 -0.16209 2019 9 23 58749 0.2119 0.3235 -0.16238 2019 9 24 58750 0.2113 0.3221 -0.16271 2019 9 25 58751 0.2106 0.3207 -0.16318 2019 9 26 58752 0.2098 0.3193 -0.16386 2019 9 27 58753 0.2091 0.3180 -0.16482 2019 9 28 58754 0.2083 0.3166 -0.16602 2019 9 29 58755 0.2075 0.3153 -0.16739 2019 9 30 58756 0.2067 0.3140 -0.16878 2019 10 1 58757 0.2058 0.3127 -0.17006 2019 10 2 58758 0.2049 0.3114 -0.17115 2019 10 3 58759 0.2040 0.3101 -0.17200 2019 10 4 58760 0.2031 0.3089 -0.17265 2019 10 5 58761 0.2021 0.3076 -0.17314 2019 10 6 58762 0.2011 0.3064 -0.17356 2019 10 7 58763 0.2001 0.3052 -0.17397 2019 10 8 58764 0.1990 0.3039 -0.17442 2019 10 9 58765 0.1980 0.3028 -0.17496 2019 10 10 58766 0.1969 0.3016 -0.17562 2019 10 11 58767 0.1958 0.3004 -0.17639 2019 10 12 58768 0.1946 0.2993 -0.17728 2019 10 13 58769 0.1935 0.2982 -0.17823 2019 10 14 58770 0.1923 0.2970 -0.17923 2019 10 15 58771 0.1911 0.2960 -0.18020 2019 10 16 58772 0.1898 0.2949 -0.18112 2019 10 17 58773 0.1886 0.2938 -0.18194 2019 10 18 58774 0.1873 0.2928 -0.18265 2019 10 19 58775 0.1860 0.2918 -0.18326 2019 10 20 58776 0.1847 0.2908 -0.18381 2019 10 21 58777 0.1834 0.2898 -0.18437 2019 10 22 58778 0.1820 0.2889 -0.18500 2019 10 23 58779 0.1806 0.2879 -0.18580 2019 10 24 58780 0.1792 0.2870 -0.18683 2019 10 25 58781 0.1778 0.2861 -0.18810 2019 10 26 58782 0.1764 0.2852 -0.18957 2019 10 27 58783 0.1749 0.2844 -0.19113 2019 10 28 58784 0.1735 0.2836 -0.19265 2019 10 29 58785 0.1720 0.2828 -0.19401 2019 10 30 58786 0.1705 0.2820 -0.19514 2019 10 31 58787 0.1690 0.2812 -0.19602 2019 11 1 58788 0.1674 0.2805 -0.19671 2019 11 2 58789 0.1659 0.2798 -0.19728 2019 11 3 58790 0.1643 0.2791 -0.19779 2019 11 4 58791 0.1628 0.2784 -0.19831 2019 11 5 58792 0.1612 0.2778 -0.19889 2019 11 6 58793 0.1596 0.2772 -0.19957 2019 11 7 58794 0.1579 0.2766 -0.20036 2019 11 8 58795 0.1563 0.2760 -0.20125 2019 11 9 58796 0.1547 0.2755 -0.20221 2019 11 10 58797 0.1530 0.2749 -0.20323 2019 11 11 58798 0.1514 0.2744 -0.20424 2019 11 12 58799 0.1497 0.2740 -0.20520 2019 11 13 58800 0.1480 0.2735 -0.20607 2019 11 14 58801 0.1463 0.2731 -0.20683 2019 11 15 58802 0.1446 0.2727 -0.20746 2019 11 16 58803 0.1429 0.2724 -0.20801 2019 11 17 58804 0.1412 0.2720 -0.20853 2019 11 18 58805 0.1395 0.2717 -0.20910 2019 11 19 58806 0.1377 0.2714 -0.20979 2019 11 20 58807 0.1360 0.2712 -0.21067 2019 11 21 58808 0.1343 0.2709 -0.21177 2019 11 22 58809 0.1325 0.2707 -0.21306 2019 11 23 58810 0.1308 0.2706 -0.21447 2019 11 24 58811 0.1290 0.2704 -0.21589 2019 11 25 58812 0.1272 0.2703 -0.21719 2019 11 26 58813 0.1255 0.2702 -0.21829 2019 11 27 58814 0.1237 0.2701 -0.21917 2019 11 28 58815 0.1220 0.2701 -0.21983 2019 11 29 58816 0.1202 0.2701 -0.22034 2019 11 30 58817 0.1184 0.2701 -0.22076 2019 12 1 58818 0.1167 0.2701 -0.22117 2019 12 2 58819 0.1149 0.2702 -0.22162 2019 12 3 58820 0.1131 0.2703 -0.22216 2019 12 4 58821 0.1114 0.2704 -0.22279 2019 12 5 58822 0.1096 0.2706 -0.22353 2019 12 6 58823 0.1078 0.2707 -0.22435 2019 12 7 58824 0.1061 0.2709 -0.22523 2019 12 8 58825 0.1043 0.2712 -0.22612 2019 12 9 58826 0.1026 0.2714 -0.22697 2019 12 10 58827 0.1008 0.2717 -0.22775 2019 12 11 58828 0.0991 0.2720 -0.22842 2019 12 12 58829 0.0973 0.2724 -0.22896 2019 12 13 58830 0.0956 0.2727 -0.22939 2019 12 14 58831 0.0939 0.2731 -0.22976 2019 12 15 58832 0.0922 0.2736 -0.23015 2019 12 16 58833 0.0905 0.2740 -0.23064 2019 12 17 58834 0.0888 0.2745 -0.23129 2019 12 18 58835 0.0871 0.2750 -0.23215 2019 12 19 58836 0.0854 0.2755 -0.23318 2019 12 20 58837 0.0837 0.2761 -0.23433 2019 12 21 58838 0.0821 0.2766 -0.23551 2019 12 22 58839 0.0804 0.2773 -0.23662 2019 12 23 58840 0.0788 0.2779 -0.23757 2019 12 24 58841 0.0772 0.2785 -0.23832 2019 12 25 58842 0.0756 0.2792 -0.23887 2019 12 26 58843 0.0740 0.2799 -0.23925 2019 12 27 58844 0.0724 0.2807 -0.23953 2019 12 28 58845 0.0708 0.2814 -0.23978 2019 12 29 58846 0.0693 0.2822 -0.24006 2019 12 30 58847 0.0677 0.2830 -0.24043 2019 12 31 58848 0.0662 0.2839 -0.24089 2020 1 1 58849 0.0647 0.2847 -0.24146 2020 1 2 58850 0.0632 0.2856 -0.24212 2020 1 3 58851 0.0617 0.2865 -0.24285 2020 1 4 58852 0.0603 0.2874 -0.24361 2020 1 5 58853 0.0588 0.2884 -0.24436 2020 1 6 58854 0.0574 0.2893 -0.24505 2020 1 7 58855 0.0560 0.2903 -0.24566 2020 1 8 58856 0.0546 0.2914 -0.24616 2020 1 9 58857 0.0533 0.2924 -0.24655 2020 1 10 58858 0.0519 0.2935 -0.24687 2020 1 11 58859 0.0506 0.2945 -0.24719 2020 1 12 58860 0.0493 0.2956 -0.24761 2020 1 13 58861 0.0480 0.2968 -0.24820 2020 1 14 58862 0.0468 0.2979 -0.24900 2020 1 15 58863 0.0455 0.2991 -0.25001 2020 1 16 58864 0.0443 0.3003 -0.25114 2020 1 17 58865 0.0431 0.3015 -0.25231 2020 1 18 58866 0.0420 0.3027 -0.25341 2020 1 19 58867 0.0408 0.3039 -0.25437 2020 1 20 58868 0.0397 0.3052 -0.25513 2020 1 21 58869 0.0386 0.3065 -0.25569 2020 1 22 58870 0.0375 0.3078 -0.25609 2020 1 23 58871 0.0365 0.3091 -0.25639 2020 1 24 58872 0.0355 0.3104 -0.25665 2020 1 25 58873 0.0345 0.3118 -0.25693 2020 1 26 58874 0.0335 0.3131 -0.25730 2020 1 27 58875 0.0326 0.3145 -0.25777 2020 1 28 58876 0.0317 0.3159 -0.25836 2020 1 29 58877 0.0308 0.3173 -0.25905 2020 1 30 58878 0.0299 0.3187 -0.25982 2020 1 31 58879 0.0291 0.3202 -0.26063 2020 2 1 58880 0.0283 0.3216 -0.26144 2020 2 2 58881 0.0275 0.3231 -0.26220 2020 2 3 58882 0.0268 0.3246 -0.26289 2020 2 4 58883 0.0261 0.3261 -0.26348 2020 2 5 58884 0.0254 0.3276 -0.26396 2020 2 6 58885 0.0247 0.3291 -0.26435 2020 2 7 58886 0.0241 0.3306 -0.26471 2020 2 8 58887 0.0235 0.3321 -0.26513 2020 2 9 58888 0.0229 0.3337 -0.26569 2020 2 10 58889 0.0224 0.3352 -0.26647 2020 2 11 58890 0.0219 0.3368 -0.26747 2020 2 12 58891 0.0214 0.3384 -0.26863 2020 2 13 58892 0.0210 0.3400 -0.26986 2020 2 14 58893 0.0206 0.3416 -0.27104 2020 2 15 58894 0.0202 0.3431 -0.27206 2020 2 16 58895 0.0198 0.3448 -0.27289 2020 2 17 58896 0.0195 0.3464 -0.27352 2020 2 18 58897 0.0192 0.3480 -0.27400 2020 2 19 58898 0.0190 0.3496 -0.27440 2020 2 20 58899 0.0187 0.3512 -0.27478 2020 2 21 58900 0.0185 0.3529 -0.27523 2020 2 22 58901 0.0184 0.3545 -0.27581 2020 2 23 58902 0.0182 0.3561 -0.27654 2020 2 24 58903 0.0182 0.3578 -0.27745 2020 2 25 58904 0.0181 0.3594 -0.27851 2020 2 26 58905 0.0181 0.3611 -0.27971 2020 2 27 58906 0.0181 0.3627 -0.28098 2020 2 28 58907 0.0181 0.3644 -0.28227 2020 2 29 58908 0.0181 0.3660 -0.28354 2020 3 1 58909 0.0182 0.3677 -0.28473 2020 3 2 58910 0.0184 0.3693 -0.28583 2020 3 3 58911 0.0185 0.3710 -0.28683 2020 3 4 58912 0.0187 0.3726 -0.28776 2020 3 5 58913 0.0189 0.3743 -0.28867 2020 3 6 58914 0.0192 0.3759 -0.28961 2020 3 7 58915 0.0195 0.3775 -0.29070 2020 3 8 58916 0.0198 0.3792 -0.29199 2020 3 9 58917 0.0202 0.3808 -0.29355 2020 3 10 58918 0.0206 0.3824 -0.29536 2020 3 11 58919 0.0210 0.3841 -0.29732 2020 3 12 58920 0.0214 0.3857 -0.29928 2020 3 13 58921 0.0219 0.3873 -0.30111 2020 3 14 58922 0.0224 0.3889 -0.30269 2020 3 15 58923 0.0230 0.3905 -0.30399 2020 3 16 58924 0.0235 0.3921 -0.30503 2020 3 17 58925 0.0241 0.3937 -0.30586 2020 3 18 58926 0.0248 0.3952 -0.30658 2020 3 19 58927 0.0254 0.3968 -0.30728 2020 3 20 58928 0.0261 0.3984 -0.30803 2020 3 21 58929 0.0269 0.3999 -0.30888 2020 3 22 58930 0.0276 0.4015 -0.30989 2020 3 23 58931 0.0284 0.4030 -0.31100 2020 3 24 58932 0.0292 0.4045 -0.31226 2020 3 25 58933 0.0301 0.4060 -0.31361 2020 3 26 58934 0.0310 0.4075 -0.31503 2020 3 27 58935 0.0319 0.4090 -0.31641 2020 3 28 58936 0.0328 0.4104 -0.31767 2020 3 29 58937 0.0338 0.4119 -0.31889 2020 3 30 58938 0.0348 0.4133 -0.31999 2020 3 31 58939 0.0358 0.4148 -0.32091 2020 4 1 58940 0.0369 0.4162 -0.32170 2020 4 2 58941 0.0379 0.4176 -0.32246 2020 4 3 58942 0.0390 0.4189 -0.32330 2020 4 4 58943 0.0402 0.4203 -0.32425 2020 4 5 58944 0.0413 0.4216 -0.32543 2020 4 6 58945 0.0425 0.4230 -0.32687 2020 4 7 58946 0.0437 0.4243 -0.32855 2020 4 8 58947 0.0450 0.4256 -0.33031 2020 4 9 58948 0.0462 0.4269 -0.33199 2020 4 10 58949 0.0475 0.4281 -0.33351 2020 4 11 58950 0.0488 0.4294 -0.33478 2020 4 12 58951 0.0502 0.4306 -0.33587 2020 4 13 58952 0.0515 0.4318 -0.33682 2020 4 14 58953 0.0529 0.4329 -0.33763 2020 4 15 58954 0.0543 0.4341 -0.33837 2020 4 16 58955 0.0558 0.4352 -0.33909 2020 4 17 58956 0.0572 0.4364 -0.33988 2020 4 18 58957 0.0587 0.4375 -0.34079 2020 4 19 58958 0.0602 0.4385 -0.34183 2020 4 20 58959 0.0617 0.4396 -0.34298 2020 4 21 58960 0.0632 0.4406 -0.34414 2020 4 22 58961 0.0648 0.4416 -0.34528 2020 4 23 58962 0.0664 0.4426 -0.34637 2020 4 24 58963 0.0680 0.4436 -0.34736 2020 4 25 58964 0.0696 0.4445 -0.34815 2020 4 26 58965 0.0712 0.4454 -0.34876 2020 4 27 58966 0.0729 0.4463 -0.34927 2020 4 28 58967 0.0746 0.4471 -0.34980 2020 4 29 58968 0.0763 0.4480 -0.35034 2020 4 30 58969 0.0780 0.4488 -0.35096 2020 5 1 58970 0.0797 0.4496 -0.35174 2020 5 2 58971 0.0814 0.4503 -0.35277 2020 5 3 58972 0.0832 0.4511 -0.35406 2020 5 4 58973 0.0849 0.4518 -0.35560 2020 5 5 58974 0.0867 0.4525 -0.35731 2020 5 6 58975 0.0885 0.4531 -0.35905 2020 5 7 58976 0.0903 0.4537 -0.36071 2020 5 8 58977 0.0921 0.4543 -0.36214 2020 5 9 58978 0.0940 0.4549 -0.36326 2020 5 10 58979 0.0958 0.4554 -0.36410 2020 5 11 58980 0.0977 0.4560 -0.36474 2020 5 12 58981 0.0995 0.4565 -0.36527 2020 5 13 58982 0.1014 0.4569 -0.36574 2020 5 14 58983 0.1033 0.4573 -0.36622 2020 5 15 58984 0.1052 0.4577 -0.36679 2020 5 16 58985 0.1071 0.4581 -0.36748 2020 5 17 58986 0.1090 0.4585 -0.36826 2020 5 18 58987 0.1109 0.4588 -0.36909 2020 5 19 58988 0.1128 0.4591 -0.36989 2020 5 20 58989 0.1147 0.4593 -0.37065 2020 5 21 58990 0.1167 0.4596 -0.37128 2020 5 22 58991 0.1186 0.4597 -0.37173 2020 5 23 58992 0.1206 0.4599 -0.37202 2020 5 24 58993 0.1225 0.4601 -0.37208 2020 5 25 58994 0.1244 0.4602 -0.37202 2020 5 26 58995 0.1264 0.4602 -0.37186 2020 5 27 58996 0.1283 0.4603 -0.37170 2020 5 28 58997 0.1303 0.4603 -0.37169 2020 5 29 58998 0.1323 0.4603 -0.37191 2020 5 30 58999 0.1342 0.4603 -0.37238 2020 5 31 59000 0.1362 0.4602 -0.37306 2020 6 1 59001 0.1381 0.4601 -0.37393 2020 6 2 59002 0.1401 0.4600 -0.37491 2020 6 3 59003 0.1420 0.4598 -0.37586 2020 6 4 59004 0.1440 0.4596 -0.37664 2020 6 5 59005 0.1459 0.4594 -0.37716 2020 6 6 59006 0.1478 0.4592 -0.37740 2020 6 7 59007 0.1498 0.4589 -0.37741 2020 6 8 59008 0.1517 0.4586 -0.37725 2020 6 9 59009 0.1536 0.4582 -0.37700 2020 6 10 59010 0.1555 0.4579 -0.37674 2020 6 11 59011 0.1575 0.4575 -0.37651 2020 6 12 59012 0.1594 0.4571 -0.37637 2020 6 13 59013 0.1612 0.4566 -0.37634 2020 6 14 59014 0.1631 0.4561 -0.37636 2020 6 15 59015 0.1650 0.4556 -0.37641 2020 6 16 59016 0.1669 0.4551 -0.37649 2020 6 17 59017 0.1687 0.4545 -0.37659 2020 6 18 59018 0.1706 0.4539 -0.37659 2020 6 19 59019 0.1724 0.4533 -0.37648 2020 6 20 59020 0.1742 0.4526 -0.37625 2020 6 21 59021 0.1761 0.4519 -0.37589 2020 6 22 59022 0.1779 0.4512 -0.37547 2020 6 23 59023 0.1796 0.4505 -0.37506 2020 6 24 59024 0.1814 0.4497 -0.37471 2020 6 25 59025 0.1832 0.4489 -0.37453 2020 6 26 59026 0.1849 0.4481 -0.37458 2020 6 27 59027 0.1866 0.4472 -0.37475 2020 6 28 59028 0.1883 0.4463 -0.37508 2020 6 29 59029 0.1900 0.4454 -0.37549 2020 6 30 59030 0.1917 0.4445 -0.37591 2020 7 1 59031 0.1934 0.4435 -0.37619 2020 7 2 59032 0.1950 0.4426 -0.37626 2020 7 3 59033 0.1966 0.4416 -0.37608 2020 7 4 59034 0.1982 0.4405 -0.37566 2020 7 5 59035 0.1998 0.4395 -0.37506 2020 7 6 59036 0.2014 0.4384 -0.37445 2020 7 7 59037 0.2029 0.4373 -0.37385 2020 7 8 59038 0.2044 0.4361 -0.37330 2020 7 9 59039 0.2059 0.4350 -0.37281 2020 7 10 59040 0.2074 0.4338 -0.37243 2020 7 11 59041 0.2088 0.4326 -0.37213 2020 7 12 59042 0.2103 0.4314 -0.37184 2020 7 13 59043 0.2117 0.4301 -0.37158 2020 7 14 59044 0.2131 0.4289 -0.37130 2020 7 15 59045 0.2144 0.4276 -0.37092 2020 7 16 59046 0.2157 0.4263 -0.37046 2020 7 17 59047 0.2170 0.4249 -0.36990 2020 7 18 59048 0.2183 0.4236 -0.36927 2020 7 19 59049 0.2196 0.4222 -0.36860 2020 7 20 59050 0.2208 0.4208 -0.36796 2020 7 21 59051 0.2220 0.4194 -0.36737 2020 7 22 59052 0.2232 0.4179 -0.36688 2020 7 23 59053 0.2243 0.4165 -0.36656 2020 7 24 59054 0.2255 0.4150 -0.36647 2020 7 25 59055 0.2265 0.4135 -0.36657 2020 7 26 59056 0.2276 0.4120 -0.36676 2020 7 27 59057 0.2286 0.4105 -0.36693 2020 7 28 59058 0.2296 0.4090 -0.36699 2020 7 29 59059 0.2306 0.4074 -0.36688 2020 7 30 59060 0.2316 0.4058 -0.36659 2020 7 31 59061 0.2325 0.4042 -0.36616 2020 8 1 59062 0.2334 0.4026 -0.36557 2020 8 2 59063 0.2342 0.4010 -0.36491 2020 8 3 59064 0.2350 0.3994 -0.36437 2020 8 4 59065 0.2358 0.3977 -0.36398 2020 8 5 59066 0.2366 0.3961 -0.36369 2020 8 6 59067 0.2373 0.3944 -0.36346 2020 8 7 59068 0.2380 0.3927 -0.36337 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) 58684 -113.01 0.25 -11.08 0.05 58685 -113.34 0.16 -11.09 0.25 58686 -113.52 0.16 -11.16 0.25 58687 -113.51 0.09 -11.19 0.31 58688 -113.56 0.12 -11.14 0.31 58689 -114.00 0.12 -11.09 0.31 58690 -114.78 0.12 -11.08 0.31 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58636 -106.4 -11.1 58637 -106.3 -11.3 58638 -106.1 -11.5 58639 -106.3 -11.6 58640 -106.7 -11.5 58641 -107.0 -11.3 58642 -107.0 -11.3 58643 -106.8 -11.3 58644 -106.6 -11.3 58645 -106.4 -11.3 58646 -106.6 -11.3 58647 -107.1 -11.2 58648 -107.6 -11.1 58649 -108.1 -11.1 58650 -108.2 -11.1 58651 -108.1 -11.1 58652 -107.9 -11.1 58653 -107.9 -11.2 58654 -108.0 -11.3 58655 -108.2 -11.3 58656 -108.4 -11.3 58657 -108.6 -11.3 58658 -108.7 -11.4 58659 -108.7 -11.4 58660 -109.0 -11.3 58661 -109.6 -11.1 58662 -110.4 -10.9 58663 -111.0 -10.8 58664 -111.2 -10.8 58665 -111.2 -10.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58684 -0.014 0.099 -0.155 0.053 58685 -0.013 0.066 -0.184 0.247 58686 -0.013 0.066 -0.218 0.247 58687 -0.015 0.037 -0.253 0.306 58688 -0.016 0.046 -0.288 0.309 58689 -0.017 0.046 -0.323 0.309 58690 -0.016 0.046 -0.354 0.309 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58636 0.10 -0.21 58637 0.14 -0.21 58638 0.22 -0.22 58639 0.16 -0.18 58640 0.07 -0.14 58641 -0.03 -0.09 58642 -0.06 -0.11 58643 -0.07 -0.15 58644 -0.10 -0.19 58645 -0.08 -0.24 58646 -0.09 -0.28 58647 -0.06 -0.27 58648 -0.03 -0.24 58649 -0.01 -0.21 58650 0.00 -0.18 58651 0.02 -0.15 58652 0.04 -0.12 58653 0.03 -0.14 58654 0.02 -0.17 58655 0.00 -0.20 58656 0.01 -0.19 58657 0.02 -0.19 58658 0.03 -0.18 58659 0.03 -0.17 58660 0.02 -0.18 58661 -0.00 -0.19 58662 -0.02 -0.19 58663 -0.03 -0.22 58664 -0.04 -0.25 58665 -0.04 -0.28 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).