********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 12 September 2019 Vol. XXXII No. 037 ______________________________________________________________________ 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. * * * * 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 9 6 58732 0.21335 .00009 0.34331 .00009 -0.155529 0.000021 19 9 7 58733 0.21356 .00009 0.34162 .00009 -0.155361 0.000017 19 9 8 58734 0.21370 .00009 0.34019 .00009 -0.155102 0.000019 19 9 9 58735 0.21352 .00009 0.33888 .00009 -0.154710 0.000012 19 9 10 58736 0.21285 .00009 0.33757 .00009 -0.154266 0.000013 19 9 11 58737 0.21169 .00009 0.33614 .00009 -0.153921 0.000012 19 9 12 58738 0.21033 .00009 0.33452 .00009 -0.153614 0.000011 _______________________________________________________________________ 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 = 0.1142 + 0.1068 cos A + 0.0011 sin A - 0.0126 cos C - 0.0138 sin C y = 0.3453 - 0.0005 cos A - 0.0947 sin A - 0.0138 cos C + 0.0126 sin C UT1-UTC = -0.1720 - 0.00054 (MJD - 58746) - (UT2-UT1) where A = 2*pi*(MJD-58738)/365.25 and C = 2*pi*(MJD-58738)/435. TAI-UTC(MJD 58739) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58738)**0.80 S t = 0.00025 (MJD-58738)**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 9 13 58739 0.2092 0.3328 -0.15337 2019 9 14 58740 0.2083 0.3309 -0.15325 2019 9 15 58741 0.2077 0.3292 -0.15322 2019 9 16 58742 0.2072 0.3276 -0.15324 2019 9 17 58743 0.2067 0.3262 -0.15325 2019 9 18 58744 0.2062 0.3249 -0.15322 2019 9 19 58745 0.2056 0.3237 -0.15311 2019 9 20 58746 0.2050 0.3224 -0.15293 2019 9 21 58747 0.2042 0.3211 -0.15265 2019 9 22 58748 0.2035 0.3198 -0.15234 2019 9 23 58749 0.2027 0.3184 -0.15204 2019 9 24 58750 0.2020 0.3171 -0.15182 2019 9 25 58751 0.2014 0.3159 -0.15177 2019 9 26 58752 0.2007 0.3147 -0.15198 2019 9 27 58753 0.1999 0.3135 -0.15252 2019 9 28 58754 0.1991 0.3124 -0.15334 2019 9 29 58755 0.1982 0.3114 -0.15435 2019 9 30 58756 0.1974 0.3103 -0.15540 2019 10 1 58757 0.1965 0.3092 -0.15634 2019 10 2 58758 0.1956 0.3080 -0.15709 2019 10 3 58759 0.1947 0.3070 -0.15762 2019 10 4 58760 0.1938 0.3059 -0.15795 2019 10 5 58761 0.1929 0.3049 -0.15814 2019 10 6 58762 0.1919 0.3039 -0.15826 2019 10 7 58763 0.1909 0.3029 -0.15836 2019 10 8 58764 0.1899 0.3020 -0.15852 2019 10 9 58765 0.1888 0.3010 -0.15878 2019 10 10 58766 0.1877 0.3001 -0.15916 2019 10 11 58767 0.1866 0.2991 -0.15967 2019 10 12 58768 0.1855 0.2982 -0.16030 2019 10 13 58769 0.1844 0.2973 -0.16103 2019 10 14 58770 0.1832 0.2964 -0.16182 2019 10 15 58771 0.1821 0.2956 -0.16260 2019 10 16 58772 0.1809 0.2948 -0.16333 2019 10 17 58773 0.1797 0.2939 -0.16398 2019 10 18 58774 0.1784 0.2932 -0.16452 2019 10 19 58775 0.1772 0.2924 -0.16496 2019 10 20 58776 0.1759 0.2916 -0.16534 2019 10 21 58777 0.1746 0.2908 -0.16572 2019 10 22 58778 0.1733 0.2901 -0.16619 2019 10 23 58779 0.1720 0.2894 -0.16681 2019 10 24 58780 0.1707 0.2887 -0.16767 2019 10 25 58781 0.1693 0.2881 -0.16876 2019 10 26 58782 0.1680 0.2874 -0.17005 2019 10 27 58783 0.1666 0.2868 -0.17143 2019 10 28 58784 0.1652 0.2862 -0.17278 2019 10 29 58785 0.1638 0.2856 -0.17397 2019 10 30 58786 0.1624 0.2851 -0.17493 2019 10 31 58787 0.1609 0.2845 -0.17566 2019 11 1 58788 0.1595 0.2840 -0.17620 2019 11 2 58789 0.1580 0.2835 -0.17663 2019 11 3 58790 0.1566 0.2830 -0.17702 2019 11 4 58791 0.1551 0.2826 -0.17743 2019 11 5 58792 0.1536 0.2822 -0.17793 2019 11 6 58793 0.1521 0.2818 -0.17853 2019 11 7 58794 0.1506 0.2814 -0.17926 2019 11 8 58795 0.1491 0.2810 -0.18010 2019 11 9 58796 0.1475 0.2807 -0.18102 2019 11 10 58797 0.1460 0.2804 -0.18200 2019 11 11 58798 0.1444 0.2801 -0.18299 2019 11 12 58799 0.1429 0.2798 -0.18392 2019 11 13 58800 0.1413 0.2796 -0.18477 2019 11 14 58801 0.1398 0.2794 -0.18551 2019 11 15 58802 0.1382 0.2792 -0.18612 2019 11 16 58803 0.1366 0.2790 -0.18665 2019 11 17 58804 0.1350 0.2789 -0.18714 2019 11 18 58805 0.1334 0.2788 -0.18768 2019 11 19 58806 0.1319 0.2787 -0.18834 2019 11 20 58807 0.1303 0.2786 -0.18920 2019 11 21 58808 0.1287 0.2786 -0.19026 2019 11 22 58809 0.1271 0.2786 -0.19152 2019 11 23 58810 0.1255 0.2786 -0.19290 2019 11 24 58811 0.1239 0.2786 -0.19429 2019 11 25 58812 0.1222 0.2786 -0.19559 2019 11 26 58813 0.1206 0.2787 -0.19669 2019 11 27 58814 0.1190 0.2788 -0.19756 2019 11 28 58815 0.1174 0.2789 -0.19821 2019 11 29 58816 0.1158 0.2791 -0.19871 2019 11 30 58817 0.1142 0.2793 -0.19912 2019 12 1 58818 0.1126 0.2795 -0.19951 2019 12 2 58819 0.1110 0.2797 -0.19995 2019 12 3 58820 0.1094 0.2800 -0.20046 2019 12 4 58821 0.1078 0.2802 -0.20107 2019 12 5 58822 0.1062 0.2805 -0.20178 2019 12 6 58823 0.1046 0.2809 -0.20257 2019 12 7 58824 0.1031 0.2812 -0.20341 2019 12 8 58825 0.1015 0.2816 -0.20425 2019 12 9 58826 0.0999 0.2820 -0.20506 2019 12 10 58827 0.0984 0.2824 -0.20579 2019 12 11 58828 0.0968 0.2828 -0.20641 2019 12 12 58829 0.0952 0.2833 -0.20690 2019 12 13 58830 0.0937 0.2838 -0.20728 2019 12 14 58831 0.0922 0.2843 -0.20760 2019 12 15 58832 0.0906 0.2849 -0.20793 2019 12 16 58833 0.0891 0.2854 -0.20837 2019 12 17 58834 0.0876 0.2860 -0.20898 2019 12 18 58835 0.0861 0.2866 -0.20978 2019 12 19 58836 0.0846 0.2872 -0.21076 2019 12 20 58837 0.0832 0.2879 -0.21185 2019 12 21 58838 0.0817 0.2886 -0.21297 2019 12 22 58839 0.0803 0.2893 -0.21401 2019 12 23 58840 0.0788 0.2900 -0.21489 2019 12 24 58841 0.0774 0.2907 -0.21558 2019 12 25 58842 0.0760 0.2915 -0.21605 2019 12 26 58843 0.0746 0.2923 -0.21636 2019 12 27 58844 0.0732 0.2931 -0.21656 2019 12 28 58845 0.0718 0.2939 -0.21673 2019 12 29 58846 0.0705 0.2948 -0.21693 2019 12 30 58847 0.0691 0.2957 -0.21716 2019 12 31 58848 0.0678 0.2966 -0.21749 2020 1 1 58849 0.0665 0.2975 -0.21793 2020 1 2 58850 0.0652 0.2984 -0.21846 2020 1 3 58851 0.0639 0.2994 -0.21907 2020 1 4 58852 0.0627 0.3003 -0.21970 2020 1 5 58853 0.0615 0.3013 -0.22032 2020 1 6 58854 0.0602 0.3023 -0.22089 2020 1 7 58855 0.0590 0.3034 -0.22138 2020 1 8 58856 0.0579 0.3044 -0.22176 2020 1 9 58857 0.0567 0.3055 -0.22203 2020 1 10 58858 0.0556 0.3066 -0.22224 2020 1 11 58859 0.0544 0.3077 -0.22245 2020 1 12 58860 0.0533 0.3088 -0.22275 2020 1 13 58861 0.0523 0.3099 -0.22323 2020 1 14 58862 0.0512 0.3111 -0.22393 2020 1 15 58863 0.0502 0.3122 -0.22482 2020 1 16 58864 0.0492 0.3134 -0.22586 2020 1 17 58865 0.0482 0.3146 -0.22693 2020 1 18 58866 0.0472 0.3158 -0.22794 2020 1 19 58867 0.0463 0.3171 -0.22880 2020 1 20 58868 0.0453 0.3183 -0.22948 2020 1 21 58869 0.0444 0.3196 -0.22996 2020 1 22 58870 0.0436 0.3208 -0.23028 2020 1 23 58871 0.0427 0.3221 -0.23050 2020 1 24 58872 0.0419 0.3234 -0.23068 2020 1 25 58873 0.0411 0.3247 -0.23090 2020 1 26 58874 0.0403 0.3260 -0.23120 2020 1 27 58875 0.0396 0.3274 -0.23161 2020 1 28 58876 0.0389 0.3287 -0.23213 2020 1 29 58877 0.0382 0.3301 -0.23277 2020 1 30 58878 0.0375 0.3315 -0.23349 2020 1 31 58879 0.0369 0.3328 -0.23425 2020 2 1 58880 0.0362 0.3342 -0.23502 2020 2 2 58881 0.0356 0.3356 -0.23576 2020 2 3 58882 0.0351 0.3370 -0.23642 2020 2 4 58883 0.0345 0.3384 -0.23700 2020 2 5 58884 0.0340 0.3399 -0.23749 2020 2 6 58885 0.0336 0.3413 -0.23790 2020 2 7 58886 0.0331 0.3427 -0.23831 2020 2 8 58887 0.0327 0.3442 -0.23879 2020 2 9 58888 0.0323 0.3456 -0.23944 2020 2 10 58889 0.0319 0.3471 -0.24033 2020 2 11 58890 0.0316 0.3486 -0.24147 2020 2 12 58891 0.0313 0.3500 -0.24280 2020 2 13 58892 0.0310 0.3515 -0.24422 2020 2 14 58893 0.0307 0.3530 -0.24559 2020 2 15 58894 0.0305 0.3545 -0.24682 2020 2 16 58895 0.0303 0.3560 -0.24783 2020 2 17 58896 0.0301 0.3574 -0.24864 2020 2 18 58897 0.0300 0.3589 -0.24926 2020 2 19 58898 0.0299 0.3604 -0.24977 2020 2 20 58899 0.0298 0.3619 -0.25023 2020 2 21 58900 0.0298 0.3634 -0.25071 2020 2 22 58901 0.0298 0.3649 -0.25126 2020 2 23 58902 0.0298 0.3664 -0.25192 2020 2 24 58903 0.0298 0.3679 -0.25271 2020 2 25 58904 0.0299 0.3694 -0.25361 2020 2 26 58905 0.0300 0.3709 -0.25461 2020 2 27 58906 0.0301 0.3724 -0.25566 2020 2 28 58907 0.0303 0.3739 -0.25673 2020 2 29 58908 0.0305 0.3754 -0.25777 2020 3 1 58909 0.0307 0.3769 -0.25874 2020 3 2 58910 0.0309 0.3784 -0.25962 2020 3 3 58911 0.0312 0.3799 -0.26040 2020 3 4 58912 0.0315 0.3814 -0.26110 2020 3 5 58913 0.0318 0.3828 -0.26175 2020 3 6 58914 0.0322 0.3843 -0.26245 2020 3 7 58915 0.0326 0.3858 -0.26328 2020 3 8 58916 0.0330 0.3872 -0.26433 2020 3 9 58917 0.0335 0.3887 -0.26566 2020 3 10 58918 0.0340 0.3901 -0.26723 2020 3 11 58919 0.0345 0.3916 -0.26896 2020 3 12 58920 0.0350 0.3930 -0.27069 2020 3 13 58921 0.0356 0.3944 -0.27230 2020 3 14 58922 0.0362 0.3958 -0.27368 2020 3 15 58923 0.0368 0.3972 -0.27479 2020 3 16 58924 0.0375 0.3986 -0.27566 2020 3 17 58925 0.0381 0.4000 -0.27635 2020 3 18 58926 0.0389 0.4014 -0.27693 2020 3 19 58927 0.0396 0.4028 -0.27747 2020 3 20 58928 0.0404 0.4041 -0.27804 2020 3 21 58929 0.0411 0.4055 -0.27869 2020 3 22 58930 0.0420 0.4068 -0.27943 2020 3 23 58931 0.0428 0.4081 -0.28028 2020 3 24 58932 0.0437 0.4094 -0.28124 2020 3 25 58933 0.0446 0.4107 -0.28227 2020 3 26 58934 0.0455 0.4120 -0.28333 2020 3 27 58935 0.0465 0.4133 -0.28439 2020 3 28 58936 0.0474 0.4145 -0.28538 2020 3 29 58937 0.0484 0.4157 -0.28628 2020 3 30 58938 0.0495 0.4170 -0.28708 2020 3 31 58939 0.0505 0.4182 -0.28776 2020 4 1 58940 0.0516 0.4194 -0.28838 2020 4 2 58941 0.0527 0.4205 -0.28897 2020 4 3 58942 0.0538 0.4217 -0.28965 2020 4 4 58943 0.0550 0.4228 -0.29048 2020 4 5 58944 0.0562 0.4240 -0.29157 2020 4 6 58945 0.0574 0.4251 -0.29292 2020 4 7 58946 0.0586 0.4262 -0.29450 2020 4 8 58947 0.0598 0.4272 -0.29618 2020 4 9 58948 0.0611 0.4283 -0.29781 2020 4 10 58949 0.0624 0.4293 -0.29928 2020 4 11 58950 0.0637 0.4303 -0.30049 2020 4 12 58951 0.0650 0.4313 -0.30144 2020 4 13 58952 0.0664 0.4323 -0.30220 2020 4 14 58953 0.0677 0.4332 -0.30284 2020 4 15 58954 0.0691 0.4342 -0.30346 2020 4 16 58955 0.0705 0.4351 -0.30414 2020 4 17 58956 0.0719 0.4360 -0.30492 2020 4 18 58957 0.0734 0.4368 -0.30583 2020 4 19 58958 0.0749 0.4377 -0.30688 2020 4 20 58959 0.0763 0.4385 -0.30806 2020 4 21 58960 0.0778 0.4393 -0.30934 2020 4 22 58961 0.0794 0.4401 -0.31066 2020 4 23 58962 0.0809 0.4409 -0.31200 2020 4 24 58963 0.0824 0.4416 -0.31329 2020 4 25 58964 0.0840 0.4423 -0.31446 2020 4 26 58965 0.0856 0.4430 -0.31551 2020 4 27 58966 0.0872 0.4437 -0.31641 2020 4 28 58967 0.0888 0.4443 -0.31716 2020 4 29 58968 0.0904 0.4449 -0.31788 2020 4 30 58969 0.0921 0.4455 -0.31862 2020 5 1 58970 0.0937 0.4461 -0.31947 2020 5 2 58971 0.0954 0.4466 -0.32053 2020 5 3 58972 0.0970 0.4471 -0.32185 2020 5 4 58973 0.0987 0.4476 -0.32341 2020 5 5 58974 0.1004 0.4481 -0.32513 2020 5 6 58975 0.1021 0.4485 -0.32680 2020 5 7 58976 0.1039 0.4489 -0.32832 2020 5 8 58977 0.1056 0.4493 -0.32964 2020 5 9 58978 0.1073 0.4497 -0.33068 2020 5 10 58979 0.1091 0.4500 -0.33152 2020 5 11 58980 0.1108 0.4503 -0.33221 2020 5 12 58981 0.1126 0.4506 -0.33281 2020 5 13 58982 0.1144 0.4509 -0.33345 2020 5 14 58983 0.1161 0.4511 -0.33411 2020 5 15 58984 0.1179 0.4513 -0.33481 2020 5 16 58985 0.1197 0.4515 -0.33560 2020 5 17 58986 0.1215 0.4516 -0.33645 2020 5 18 58987 0.1233 0.4518 -0.33733 2020 5 19 58988 0.1251 0.4518 -0.33826 2020 5 20 58989 0.1269 0.4519 -0.33915 2020 5 21 58990 0.1287 0.4520 -0.33995 2020 5 22 58991 0.1305 0.4520 -0.34061 2020 5 23 58992 0.1323 0.4520 -0.34109 2020 5 24 58993 0.1341 0.4519 -0.34139 2020 5 25 58994 0.1359 0.4518 -0.34154 2020 5 26 58995 0.1378 0.4518 -0.34158 2020 5 27 58996 0.1396 0.4516 -0.34157 2020 5 28 58997 0.1414 0.4515 -0.34164 2020 5 29 58998 0.1432 0.4513 -0.34187 2020 5 30 58999 0.1450 0.4511 -0.34228 2020 5 31 59000 0.1468 0.4509 -0.34298 2020 6 1 59001 0.1486 0.4506 -0.34384 2020 6 2 59002 0.1504 0.4503 -0.34482 2020 6 3 59003 0.1522 0.4500 -0.34577 2020 6 4 59004 0.1540 0.4497 -0.34660 2020 6 5 59005 0.1558 0.4493 -0.34719 2020 6 6 59006 0.1576 0.4489 -0.34746 2020 6 7 59007 0.1593 0.4485 -0.34759 2020 6 8 59008 0.1611 0.4480 -0.34759 2020 6 9 59009 0.1629 0.4476 -0.34749 2020 6 10 59010 0.1646 0.4471 -0.34735 2020 6 11 59011 0.1663 0.4465 -0.34727 2020 6 12 59012 0.1681 0.4460 -0.34728 2020 6 13 59013 0.1698 0.4454 -0.34731 2020 6 14 59014 0.1715 0.4448 -0.34738 2020 6 15 59015 0.1732 0.4442 -0.34747 2020 6 16 59016 0.1749 0.4435 -0.34756 2020 6 17 59017 0.1766 0.4428 -0.34758 2020 6 18 59018 0.1783 0.4421 -0.34746 2020 6 19 59019 0.1799 0.4414 -0.34722 2020 6 20 59020 0.1816 0.4406 -0.34687 2020 6 21 59021 0.1832 0.4398 -0.34647 2020 6 22 59022 0.1848 0.4390 -0.34608 2020 6 23 59023 0.1864 0.4382 -0.34566 2020 6 24 59024 0.1880 0.4374 -0.34528 2020 6 25 59025 0.1896 0.4365 -0.34502 2020 6 26 59026 0.1911 0.4356 -0.34495 2020 6 27 59027 0.1927 0.4346 -0.34511 2020 6 28 59028 0.1942 0.4337 -0.34547 2020 6 29 59029 0.1957 0.4327 -0.34592 2020 6 30 59030 0.1972 0.4317 -0.34632 2020 7 1 59031 0.1987 0.4307 -0.34655 2020 7 2 59032 0.2001 0.4297 -0.34656 2020 7 3 59033 0.2016 0.4286 -0.34632 2020 7 4 59034 0.2030 0.4275 -0.34579 2020 7 5 59035 0.2044 0.4264 -0.34508 2020 7 6 59036 0.2057 0.4253 -0.34436 2020 7 7 59037 0.2071 0.4241 -0.34377 2020 7 8 59038 0.2084 0.4230 -0.34333 2020 7 9 59039 0.2097 0.4218 -0.34305 2020 7 10 59040 0.2110 0.4206 -0.34291 2020 7 11 59041 0.2123 0.4193 -0.34291 2020 7 12 59042 0.2135 0.4181 -0.34299 2020 7 13 59043 0.2147 0.4168 -0.34308 2020 7 14 59044 0.2159 0.4156 -0.34316 2020 7 15 59045 0.2171 0.4143 -0.34316 2020 7 16 59046 0.2183 0.4129 -0.34307 2020 7 17 59047 0.2194 0.4116 -0.34288 2020 7 18 59048 0.2205 0.4102 -0.34254 2020 7 19 59049 0.2215 0.4089 -0.34210 2020 7 20 59050 0.2226 0.4075 -0.34162 2020 7 21 59051 0.2236 0.4061 -0.34118 2020 7 22 59052 0.2246 0.4047 -0.34084 2020 7 23 59053 0.2256 0.4032 -0.34068 2020 7 24 59054 0.2265 0.4018 -0.34077 2020 7 25 59055 0.2274 0.4003 -0.34108 2020 7 26 59056 0.2283 0.3989 -0.34151 2020 7 27 59057 0.2292 0.3974 -0.34193 2020 7 28 59058 0.2300 0.3959 -0.34220 2020 7 29 59059 0.2308 0.3944 -0.34227 2020 7 30 59060 0.2316 0.3928 -0.34206 2020 7 31 59061 0.2323 0.3913 -0.34161 2020 8 1 59062 0.2330 0.3898 -0.34099 2020 8 2 59063 0.2337 0.3882 -0.34026 2020 8 3 59064 0.2343 0.3866 -0.33954 2020 8 4 59065 0.2350 0.3851 -0.33888 2020 8 5 59066 0.2356 0.3835 -0.33835 2020 8 6 59067 0.2361 0.3819 -0.33802 2020 8 7 59068 0.2366 0.3803 -0.33787 2020 8 8 59069 0.2371 0.3787 -0.33784 2020 8 9 59070 0.2376 0.3770 -0.33784 2020 8 10 59071 0.2381 0.3754 -0.33786 2020 8 11 59072 0.2385 0.3738 -0.33786 2020 8 12 59073 0.2388 0.3721 -0.33781 2020 8 13 59074 0.2392 0.3705 -0.33765 2020 8 14 59075 0.2395 0.3688 -0.33736 2020 8 15 59076 0.2398 0.3672 -0.33698 2020 8 16 59077 0.2400 0.3655 -0.33656 2020 8 17 59078 0.2402 0.3639 -0.33613 2020 8 18 59079 0.2404 0.3622 -0.33580 2020 8 19 59080 0.2406 0.3605 -0.33566 2020 8 20 59081 0.2407 0.3589 -0.33574 2020 8 21 59082 0.2408 0.3572 -0.33606 2020 8 22 59083 0.2408 0.3555 -0.33657 2020 8 23 59084 0.2408 0.3538 -0.33710 2020 8 24 59085 0.2408 0.3522 -0.33756 2020 8 25 59086 0.2408 0.3505 -0.33787 2020 8 26 59087 0.2407 0.3488 -0.33803 2020 8 27 59088 0.2406 0.3471 -0.33799 2020 8 28 59089 0.2405 0.3455 -0.33782 2020 8 29 59090 0.2403 0.3438 -0.33761 2020 8 30 59091 0.2401 0.3421 -0.33742 2020 8 31 59092 0.2398 0.3405 -0.33734 2020 9 1 59093 0.2396 0.3388 -0.33741 2020 9 2 59094 0.2393 0.3372 -0.33761 2020 9 3 59095 0.2389 0.3355 -0.33796 2020 9 4 59096 0.2386 0.3339 -0.33844 2020 9 5 59097 0.2382 0.3322 -0.33890 2020 9 6 59098 0.2377 0.3306 -0.33935 2020 9 7 59099 0.2373 0.3290 -0.33978 2020 9 8 59100 0.2368 0.3273 -0.34014 2020 9 9 59101 0.2362 0.3257 -0.34039 2020 9 10 59102 0.2357 0.3241 -0.34052 2020 9 11 59103 0.2351 0.3225 -0.34056 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) 58716 -116.33 0.30 -10.71 0.12 58717 -116.60 0.30 -10.67 0.12 58718 -117.27 0.30 -10.75 0.12 58719 -117.92 0.40 -10.91 0.16 58720 -118.15 0.31 -10.99 0.10 58721 -117.98 0.31 -11.00 0.10 58722 -117.72 0.27 -11.03 0.03 58723 -117.50 0.27 -11.10 0.03 58724 -117.25 0.27 -11.06 0.03 58725 -117.00 0.27 -10.84 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58716 -0.042 0.118 0.025 0.116 58717 -0.066 0.118 0.057 0.116 58718 -0.087 0.118 0.082 0.116 58719 -0.098 0.158 0.091 0.155 58720 -0.100 0.122 0.084 0.101 58721 -0.095 0.122 0.067 0.101 58722 -0.087 0.107 0.047 0.028 58723 -0.080 0.107 0.030 0.030 58724 -0.074 0.107 0.016 0.030 58725 -0.069 0.107 0.004 0.030 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).