********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 October 2019 Vol. XXXII No. 040 ______________________________________________________________________ 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 27 58753 0.19952 .00009 0.31628 .00009 -0.151241 0.000017 19 9 28 58754 0.19912 .00009 0.31549 .00009 -0.151822 0.000022 19 9 29 58755 0.19893 .00009 0.31456 .00009 -0.152508 0.000023 19 9 30 58756 0.19877 .00009 0.31341 .00009 -0.153199 0.000034 19 10 1 58757 0.19833 .00009 0.31217 .00009 -0.153752 0.000036 19 10 2 58758 0.19753 .00009 0.31103 .00009 -0.154001 0.000035 19 10 3 58759 0.19653 .00009 0.31000 .00009 -0.153946 0.000039 IERS Final Values MJD x y UT1-UTC " " s 19 8 2 58697 0.2063 0.3912 -0.15987 19 8 3 58698 0.2078 0.3902 -0.15976 19 8 4 58699 0.2093 0.3894 -0.15987 19 8 5 58700 0.2106 0.3888 -0.16014 19 8 6 58701 0.2116 0.3884 -0.16046 19 8 7 58702 0.2124 0.3880 -0.16067 19 8 8 58703 0.2127 0.3875 -0.16070 19 8 9 58704 0.2132 0.3865 -0.16052 19 8 10 58705 0.2136 0.3853 -0.16009 19 8 11 58706 0.2140 0.3838 -0.15951 19 8 12 58707 0.2145 0.3822 -0.15882 19 8 13 58708 0.2149 0.3805 -0.15806 19 8 14 58709 0.2156 0.3790 -0.15733 19 8 15 58710 0.2163 0.3778 -0.15673 19 8 16 58711 0.2167 0.3767 -0.15628 19 8 17 58712 0.2168 0.3757 -0.15582 19 8 18 58713 0.2170 0.3745 -0.15551 19 8 19 58714 0.2170 0.3732 -0.15522 19 8 20 58715 0.2171 0.3719 -0.15500 19 8 21 58716 0.2172 0.3704 -0.15481 19 8 22 58717 0.2173 0.3688 -0.15467 19 8 23 58718 0.2172 0.3673 -0.15453 19 8 24 58719 0.2170 0.3656 -0.15436 19 8 25 58720 0.2166 0.3636 -0.15409 19 8 26 58721 0.2165 0.3617 -0.15372 19 8 27 58722 0.2163 0.3598 -0.15332 19 8 28 58723 0.2163 0.3580 -0.15299 19 8 29 58724 0.2159 0.3562 -0.15281 19 8 30 58725 0.2154 0.3544 -0.15286 19 8 31 58726 0.2145 0.3526 -0.15312 19 9 1 58727 0.2144 0.3511 -0.15362 _______________________________________________________________________ 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 = 0.1151 + 0.1029 cos A - 0.0440 sin A - 0.0242 cos C - 0.0053 sin C y = 0.3541 - 0.0413 cos A - 0.0936 sin A - 0.0053 cos C + 0.0242 sin C UT1-UTC = -0.1592 - 0.00051 (MJD - 58767) - (UT2-UT1) where A = 2*pi*(MJD-58759)/365.25 and C = 2*pi*(MJD-58759)/435. TAI-UTC(MJD 58760) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58759)**0.80 S t = 0.00025 (MJD-58759)**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 10 4 58760 0.1955 0.3090 -0.15370 2019 10 5 58761 0.1944 0.3079 -0.15333 2019 10 6 58762 0.1934 0.3069 -0.15290 2019 10 7 58763 0.1925 0.3058 -0.15248 2019 10 8 58764 0.1915 0.3048 -0.15213 2019 10 9 58765 0.1906 0.3038 -0.15188 2019 10 10 58766 0.1896 0.3029 -0.15176 2019 10 11 58767 0.1886 0.3020 -0.15176 2019 10 12 58768 0.1875 0.3011 -0.15186 2019 10 13 58769 0.1865 0.3002 -0.15205 2019 10 14 58770 0.1854 0.2993 -0.15225 2019 10 15 58771 0.1843 0.2984 -0.15243 2019 10 16 58772 0.1832 0.2975 -0.15253 2019 10 17 58773 0.1821 0.2966 -0.15258 2019 10 18 58774 0.1809 0.2958 -0.15255 2019 10 19 58775 0.1798 0.2950 -0.15246 2019 10 20 58776 0.1786 0.2942 -0.15230 2019 10 21 58777 0.1774 0.2934 -0.15214 2019 10 22 58778 0.1761 0.2927 -0.15206 2019 10 23 58779 0.1749 0.2919 -0.15215 2019 10 24 58780 0.1736 0.2912 -0.15249 2019 10 25 58781 0.1724 0.2905 -0.15310 2019 10 26 58782 0.1711 0.2898 -0.15394 2019 10 27 58783 0.1698 0.2892 -0.15490 2019 10 28 58784 0.1685 0.2885 -0.15585 2019 10 29 58785 0.1671 0.2879 -0.15669 2019 10 30 58786 0.1658 0.2873 -0.15733 2019 10 31 58787 0.1644 0.2868 -0.15776 2019 11 1 58788 0.1630 0.2862 -0.15801 2019 11 2 58789 0.1616 0.2857 -0.15815 2019 11 3 58790 0.1602 0.2852 -0.15826 2019 11 4 58791 0.1588 0.2847 -0.15840 2019 11 5 58792 0.1574 0.2842 -0.15863 2019 11 6 58793 0.1560 0.2838 -0.15896 2019 11 7 58794 0.1545 0.2833 -0.15941 2019 11 8 58795 0.1531 0.2829 -0.15997 2019 11 9 58796 0.1516 0.2826 -0.16063 2019 11 10 58797 0.1501 0.2822 -0.16134 2019 11 11 58798 0.1486 0.2819 -0.16206 2019 11 12 58799 0.1471 0.2816 -0.16275 2019 11 13 58800 0.1456 0.2813 -0.16335 2019 11 14 58801 0.1441 0.2810 -0.16385 2019 11 15 58802 0.1426 0.2808 -0.16423 2019 11 16 58803 0.1411 0.2806 -0.16452 2019 11 17 58804 0.1395 0.2804 -0.16479 2019 11 18 58805 0.1380 0.2802 -0.16510 2019 11 19 58806 0.1365 0.2801 -0.16554 2019 11 20 58807 0.1349 0.2800 -0.16617 2019 11 21 58808 0.1334 0.2799 -0.16701 2019 11 22 58809 0.1318 0.2798 -0.16804 2019 11 23 58810 0.1303 0.2798 -0.16920 2019 11 24 58811 0.1287 0.2798 -0.17036 2019 11 25 58812 0.1271 0.2798 -0.17142 2019 11 26 58813 0.1256 0.2798 -0.17229 2019 11 27 58814 0.1240 0.2798 -0.17293 2019 11 28 58815 0.1224 0.2799 -0.17336 2019 11 29 58816 0.1209 0.2800 -0.17364 2019 11 30 58817 0.1193 0.2801 -0.17383 2019 12 1 58818 0.1177 0.2803 -0.17401 2019 12 2 58819 0.1162 0.2805 -0.17424 2019 12 3 58820 0.1146 0.2807 -0.17457 2019 12 4 58821 0.1130 0.2809 -0.17500 2019 12 5 58822 0.1115 0.2812 -0.17554 2019 12 6 58823 0.1099 0.2814 -0.17618 2019 12 7 58824 0.1084 0.2817 -0.17689 2019 12 8 58825 0.1068 0.2820 -0.17761 2019 12 9 58826 0.1053 0.2824 -0.17832 2019 12 10 58827 0.1037 0.2828 -0.17895 2019 12 11 58828 0.1022 0.2832 -0.17948 2019 12 12 58829 0.1007 0.2836 -0.17989 2019 12 13 58830 0.0992 0.2840 -0.18019 2019 12 14 58831 0.0976 0.2845 -0.18043 2019 12 15 58832 0.0961 0.2850 -0.18070 2019 12 16 58833 0.0946 0.2855 -0.18108 2019 12 17 58834 0.0932 0.2860 -0.18163 2019 12 18 58835 0.0917 0.2866 -0.18238 2019 12 19 58836 0.0902 0.2872 -0.18331 2019 12 20 58837 0.0887 0.2878 -0.18436 2019 12 21 58838 0.0873 0.2884 -0.18544 2019 12 22 58839 0.0858 0.2890 -0.18645 2019 12 23 58840 0.0844 0.2897 -0.18731 2019 12 24 58841 0.0830 0.2904 -0.18797 2019 12 25 58842 0.0816 0.2911 -0.18844 2019 12 26 58843 0.0802 0.2919 -0.18873 2019 12 27 58844 0.0788 0.2926 -0.18893 2019 12 28 58845 0.0774 0.2934 -0.18910 2019 12 29 58846 0.0761 0.2942 -0.18931 2019 12 30 58847 0.0747 0.2950 -0.18959 2019 12 31 58848 0.0734 0.2959 -0.18997 2020 1 1 58849 0.0721 0.2968 -0.19046 2020 1 2 58850 0.0708 0.2976 -0.19104 2020 1 3 58851 0.0695 0.2985 -0.19168 2020 1 4 58852 0.0683 0.2995 -0.19236 2020 1 5 58853 0.0670 0.3004 -0.19301 2020 1 6 58854 0.0658 0.3014 -0.19361 2020 1 7 58855 0.0646 0.3024 -0.19412 2020 1 8 58856 0.0634 0.3034 -0.19452 2020 1 9 58857 0.0622 0.3044 -0.19480 2020 1 10 58858 0.0611 0.3054 -0.19502 2020 1 11 58859 0.0599 0.3065 -0.19524 2020 1 12 58860 0.0588 0.3076 -0.19555 2020 1 13 58861 0.0577 0.3087 -0.19603 2020 1 14 58862 0.0566 0.3098 -0.19673 2020 1 15 58863 0.0556 0.3109 -0.19764 2020 1 16 58864 0.0545 0.3120 -0.19867 2020 1 17 58865 0.0535 0.3132 -0.19975 2020 1 18 58866 0.0525 0.3144 -0.20075 2020 1 19 58867 0.0516 0.3155 -0.20162 2020 1 20 58868 0.0506 0.3168 -0.20217 2020 1 21 58869 0.0497 0.3180 -0.20254 2020 1 22 58870 0.0488 0.3192 -0.20274 2020 1 23 58871 0.0479 0.3205 -0.20285 2020 1 24 58872 0.0471 0.3217 -0.20292 2020 1 25 58873 0.0462 0.3230 -0.20303 2020 1 26 58874 0.0454 0.3243 -0.20321 2020 1 27 58875 0.0446 0.3256 -0.20351 2020 1 28 58876 0.0439 0.3269 -0.20393 2020 1 29 58877 0.0432 0.3282 -0.20446 2020 1 30 58878 0.0425 0.3295 -0.20507 2020 1 31 58879 0.0418 0.3309 -0.20574 2020 2 1 58880 0.0411 0.3322 -0.20640 2020 2 2 58881 0.0405 0.3336 -0.20703 2020 2 3 58882 0.0399 0.3350 -0.20759 2020 2 4 58883 0.0393 0.3364 -0.20807 2020 2 5 58884 0.0388 0.3378 -0.20845 2020 2 6 58885 0.0382 0.3392 -0.20876 2020 2 7 58886 0.0377 0.3406 -0.20906 2020 2 8 58887 0.0373 0.3420 -0.20944 2020 2 9 58888 0.0368 0.3434 -0.20998 2020 2 10 58889 0.0364 0.3448 -0.21077 2020 2 11 58890 0.0360 0.3463 -0.21182 2020 2 12 58891 0.0357 0.3477 -0.21305 2020 2 13 58892 0.0353 0.3492 -0.21437 2020 2 14 58893 0.0350 0.3506 -0.21565 2020 2 15 58894 0.0347 0.3521 -0.21678 2020 2 16 58895 0.0345 0.3536 -0.21771 2020 2 17 58896 0.0343 0.3550 -0.21842 2020 2 18 58897 0.0341 0.3565 -0.21896 2020 2 19 58898 0.0339 0.3580 -0.21938 2020 2 20 58899 0.0338 0.3595 -0.21975 2020 2 21 58900 0.0337 0.3609 -0.22014 2020 2 22 58901 0.0336 0.3624 -0.22061 2020 2 23 58902 0.0336 0.3639 -0.22119 2020 2 24 58903 0.0336 0.3654 -0.22190 2020 2 25 58904 0.0336 0.3669 -0.22272 2020 2 26 58905 0.0336 0.3683 -0.22364 2020 2 27 58906 0.0337 0.3698 -0.22462 2020 2 28 58907 0.0338 0.3713 -0.22561 2020 2 29 58908 0.0339 0.3728 -0.22657 2020 3 1 58909 0.0341 0.3743 -0.22747 2020 3 2 58910 0.0343 0.3757 -0.22827 2020 3 3 58911 0.0345 0.3772 -0.22899 2020 3 4 58912 0.0347 0.3787 -0.22962 2020 3 5 58913 0.0350 0.3801 -0.23022 2020 3 6 58914 0.0353 0.3816 -0.23085 2020 3 7 58915 0.0356 0.3831 -0.23163 2020 3 8 58916 0.0360 0.3845 -0.23263 2020 3 9 58917 0.0364 0.3860 -0.23391 2020 3 10 58918 0.0368 0.3874 -0.23545 2020 3 11 58919 0.0373 0.3888 -0.23714 2020 3 12 58920 0.0377 0.3903 -0.23886 2020 3 13 58921 0.0382 0.3917 -0.24047 2020 3 14 58922 0.0388 0.3931 -0.24186 2020 3 15 58923 0.0393 0.3945 -0.24300 2020 3 16 58924 0.0399 0.3959 -0.24392 2020 3 17 58925 0.0405 0.3973 -0.24468 2020 3 18 58926 0.0412 0.3986 -0.24536 2020 3 19 58927 0.0419 0.4000 -0.24604 2020 3 20 58928 0.0426 0.4014 -0.24678 2020 3 21 58929 0.0433 0.4027 -0.24761 2020 3 22 58930 0.0440 0.4040 -0.24855 2020 3 23 58931 0.0448 0.4054 -0.24961 2020 3 24 58932 0.0456 0.4067 -0.25077 2020 3 25 58933 0.0465 0.4080 -0.25199 2020 3 26 58934 0.0473 0.4093 -0.25322 2020 3 27 58935 0.0482 0.4105 -0.25442 2020 3 28 58936 0.0491 0.4118 -0.25554 2020 3 29 58937 0.0501 0.4130 -0.25656 2020 3 30 58938 0.0510 0.4143 -0.25746 2020 3 31 58939 0.0520 0.4155 -0.25825 2020 4 1 58940 0.0530 0.4167 -0.25898 2020 4 2 58941 0.0541 0.4179 -0.25970 2020 4 3 58942 0.0551 0.4190 -0.26050 2020 4 4 58943 0.0562 0.4202 -0.26147 2020 4 5 58944 0.0573 0.4213 -0.26269 2020 4 6 58945 0.0585 0.4224 -0.26418 2020 4 7 58946 0.0596 0.4235 -0.26590 2020 4 8 58947 0.0608 0.4246 -0.26773 2020 4 9 58948 0.0620 0.4257 -0.26950 2020 4 10 58949 0.0632 0.4267 -0.27109 2020 4 11 58950 0.0645 0.4278 -0.27242 2020 4 12 58951 0.0657 0.4288 -0.27348 2020 4 13 58952 0.0670 0.4298 -0.27431 2020 4 14 58953 0.0683 0.4307 -0.27500 2020 4 15 58954 0.0697 0.4317 -0.27563 2020 4 16 58955 0.0710 0.4326 -0.27626 2020 4 17 58956 0.0724 0.4335 -0.27696 2020 4 18 58957 0.0738 0.4344 -0.27774 2020 4 19 58958 0.0752 0.4353 -0.27862 2020 4 20 58959 0.0766 0.4361 -0.27959 2020 4 21 58960 0.0780 0.4369 -0.28063 2020 4 22 58961 0.0795 0.4377 -0.28170 2020 4 23 58962 0.0810 0.4385 -0.28275 2020 4 24 58963 0.0825 0.4393 -0.28373 2020 4 25 58964 0.0840 0.4400 -0.28460 2020 4 26 58965 0.0855 0.4407 -0.28533 2020 4 27 58966 0.0871 0.4414 -0.28592 2020 4 28 58967 0.0886 0.4421 -0.28640 2020 4 29 58968 0.0902 0.4427 -0.28682 2020 4 30 58969 0.0918 0.4433 -0.28727 2020 5 1 58970 0.0934 0.4439 -0.28782 2020 5 2 58971 0.0950 0.4445 -0.28857 2020 5 3 58972 0.0966 0.4450 -0.28954 2020 5 4 58973 0.0982 0.4456 -0.29075 2020 5 5 58974 0.0999 0.4461 -0.29210 2020 5 6 58975 0.1016 0.4465 -0.29348 2020 5 7 58976 0.1032 0.4470 -0.29475 2020 5 8 58977 0.1049 0.4474 -0.29578 2020 5 9 58978 0.1066 0.4478 -0.29651 2020 5 10 58979 0.1083 0.4481 -0.29697 2020 5 11 58980 0.1100 0.4485 -0.29724 2020 5 12 58981 0.1117 0.4488 -0.29742 2020 5 13 58982 0.1135 0.4491 -0.29760 2020 5 14 58983 0.1152 0.4493 -0.29779 2020 5 15 58984 0.1169 0.4496 -0.29803 2020 5 16 58985 0.1187 0.4498 -0.29840 2020 5 17 58986 0.1204 0.4500 -0.29885 2020 5 18 58987 0.1222 0.4501 -0.29934 2020 5 19 58988 0.1239 0.4502 -0.29988 2020 5 20 58989 0.1257 0.4503 -0.30039 2020 5 21 58990 0.1275 0.4504 -0.30087 2020 5 22 58991 0.1293 0.4505 -0.30119 2020 5 23 58992 0.1310 0.4505 -0.30137 2020 5 24 58993 0.1328 0.4505 -0.30144 2020 5 25 58994 0.1346 0.4504 -0.30139 2020 5 26 58995 0.1364 0.4504 -0.30131 2020 5 27 58996 0.1381 0.4503 -0.30124 2020 5 28 58997 0.1399 0.4502 -0.30132 2020 5 29 58998 0.1417 0.4500 -0.30155 2020 5 30 58999 0.1435 0.4499 -0.30202 2020 5 31 59000 0.1453 0.4497 -0.30276 2020 6 1 59001 0.1470 0.4494 -0.30371 2020 6 2 59002 0.1488 0.4492 -0.30477 2020 6 3 59003 0.1506 0.4489 -0.30579 2020 6 4 59004 0.1524 0.4486 -0.30669 2020 6 5 59005 0.1541 0.4483 -0.30739 2020 6 6 59006 0.1559 0.4479 -0.30782 2020 6 7 59007 0.1576 0.4475 -0.30806 2020 6 8 59008 0.1594 0.4471 -0.30815 2020 6 9 59009 0.1611 0.4467 -0.30815 2020 6 10 59010 0.1629 0.4462 -0.30821 2020 6 11 59011 0.1646 0.4457 -0.30832 2020 6 12 59012 0.1663 0.4452 -0.30853 2020 6 13 59013 0.1680 0.4447 -0.30883 2020 6 14 59014 0.1697 0.4441 -0.30922 2020 6 15 59015 0.1714 0.4435 -0.30964 2020 6 16 59016 0.1731 0.4429 -0.31004 2020 6 17 59017 0.1748 0.4422 -0.31031 2020 6 18 59018 0.1764 0.4416 -0.31045 2020 6 19 59019 0.1781 0.4409 -0.31048 2020 6 20 59020 0.1797 0.4401 -0.31038 2020 6 21 59021 0.1813 0.4394 -0.31021 2020 6 22 59022 0.1830 0.4386 -0.30998 2020 6 23 59023 0.1846 0.4378 -0.30974 2020 6 24 59024 0.1861 0.4370 -0.30964 2020 6 25 59025 0.1877 0.4362 -0.30964 2020 6 26 59026 0.1893 0.4353 -0.30980 2020 6 27 59027 0.1908 0.4344 -0.31017 2020 6 28 59028 0.1923 0.4335 -0.31068 2020 6 29 59029 0.1939 0.4325 -0.31124 2020 6 30 59030 0.1953 0.4316 -0.31182 2020 7 1 59031 0.1968 0.4306 -0.31227 2020 7 2 59032 0.1983 0.4296 -0.31250 2020 7 3 59033 0.1997 0.4285 -0.31247 2020 7 4 59034 0.2011 0.4275 -0.31220 2020 7 5 59035 0.2025 0.4264 -0.31175 2020 7 6 59036 0.2039 0.4253 -0.31124 2020 7 7 59037 0.2053 0.4242 -0.31070 2020 7 8 59038 0.2066 0.4231 -0.31020 2020 7 9 59039 0.2080 0.4219 -0.30980 2020 7 10 59040 0.2093 0.4208 -0.30952 2020 7 11 59041 0.2105 0.4196 -0.30930 2020 7 12 59042 0.2118 0.4183 -0.30920 2020 7 13 59043 0.2130 0.4171 -0.30911 2020 7 14 59044 0.2142 0.4159 -0.30903 2020 7 15 59045 0.2154 0.4146 -0.30889 2020 7 16 59046 0.2166 0.4133 -0.30871 2020 7 17 59047 0.2177 0.4120 -0.30840 2020 7 18 59048 0.2189 0.4107 -0.30792 2020 7 19 59049 0.2199 0.4093 -0.30742 2020 7 20 59050 0.2210 0.4080 -0.30691 2020 7 21 59051 0.2221 0.4066 -0.30638 2020 7 22 59052 0.2231 0.4052 -0.30595 2020 7 23 59053 0.2241 0.4038 -0.30571 2020 7 24 59054 0.2250 0.4024 -0.30570 2020 7 25 59055 0.2260 0.4010 -0.30582 2020 7 26 59056 0.2269 0.3995 -0.30602 2020 7 27 59057 0.2278 0.3981 -0.30621 2020 7 28 59058 0.2286 0.3966 -0.30631 2020 7 29 59059 0.2295 0.3951 -0.30621 2020 7 30 59060 0.2303 0.3936 -0.30586 2020 7 31 59061 0.2310 0.3921 -0.30533 2020 8 1 59062 0.2318 0.3906 -0.30470 2020 8 2 59063 0.2325 0.3890 -0.30408 2020 8 3 59064 0.2332 0.3875 -0.30359 2020 8 4 59065 0.2338 0.3859 -0.30317 2020 8 5 59066 0.2345 0.3844 -0.30284 2020 8 6 59067 0.2351 0.3828 -0.30261 2020 8 7 59068 0.2356 0.3812 -0.30249 2020 8 8 59069 0.2362 0.3796 -0.30247 2020 8 9 59070 0.2367 0.3780 -0.30252 2020 8 10 59071 0.2372 0.3764 -0.30257 2020 8 11 59072 0.2376 0.3748 -0.30253 2020 8 12 59073 0.2380 0.3732 -0.30236 2020 8 13 59074 0.2384 0.3716 -0.30207 2020 8 14 59075 0.2388 0.3699 -0.30166 2020 8 15 59076 0.2391 0.3683 -0.30109 2020 8 16 59077 0.2394 0.3666 -0.30045 2020 8 17 59078 0.2397 0.3650 -0.29990 2020 8 18 59079 0.2399 0.3634 -0.29959 2020 8 19 59080 0.2401 0.3617 -0.29958 2020 8 20 59081 0.2402 0.3600 -0.29989 2020 8 21 59082 0.2404 0.3584 -0.30049 2020 8 22 59083 0.2405 0.3567 -0.30130 2020 8 23 59084 0.2406 0.3551 -0.30218 2020 8 24 59085 0.2406 0.3534 -0.30297 2020 8 25 59086 0.2406 0.3517 -0.30360 2020 8 26 59087 0.2406 0.3501 -0.30401 2020 8 27 59088 0.2405 0.3484 -0.30423 2020 8 28 59089 0.2404 0.3468 -0.30432 2020 8 29 59090 0.2403 0.3451 -0.30432 2020 8 30 59091 0.2401 0.3435 -0.30432 2020 8 31 59092 0.2400 0.3418 -0.30439 2020 9 1 59093 0.2397 0.3402 -0.30456 2020 9 2 59094 0.2395 0.3385 -0.30482 2020 9 3 59095 0.2392 0.3369 -0.30517 2020 9 4 59096 0.2389 0.3352 -0.30564 2020 9 5 59097 0.2385 0.3336 -0.30620 2020 9 6 59098 0.2382 0.3320 -0.30676 2020 9 7 59099 0.2377 0.3304 -0.30729 2020 9 8 59100 0.2373 0.3287 -0.30768 2020 9 9 59101 0.2368 0.3271 -0.30797 2020 9 10 59102 0.2363 0.3255 -0.30809 2020 9 11 59103 0.2358 0.3239 -0.30807 2020 9 12 59104 0.2352 0.3224 -0.30799 2020 9 13 59105 0.2346 0.3208 -0.30785 2020 9 14 59106 0.2340 0.3192 -0.30783 2020 9 15 59107 0.2333 0.3177 -0.30797 2020 9 16 59108 0.2326 0.3161 -0.30839 2020 9 17 59109 0.2319 0.3146 -0.30918 2020 9 18 59110 0.2312 0.3131 -0.31028 2020 9 19 59111 0.2304 0.3116 -0.31153 2020 9 20 59112 0.2296 0.3101 -0.31274 2020 9 21 59113 0.2287 0.3086 -0.31381 2020 9 22 59114 0.2278 0.3071 -0.31468 2020 9 23 59115 0.2269 0.3057 -0.31533 2020 9 24 59116 0.2260 0.3042 -0.31579 2020 9 25 59117 0.2250 0.3028 -0.31612 2020 9 26 59118 0.2241 0.3014 -0.31643 2020 9 27 59119 0.2230 0.3000 -0.31679 2020 9 28 59120 0.2220 0.2986 -0.31722 2020 9 29 59121 0.2209 0.2972 -0.31774 2020 9 30 59122 0.2198 0.2959 -0.31835 2020 10 1 59123 0.2187 0.2946 -0.31902 2020 10 2 59124 0.2175 0.2932 -0.31974 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) 58740 -117.18 0.33 -10.28 0.11 58741 -117.07 0.21 -10.12 0.13 58742 -116.88 0.21 -10.12 0.13 58743 -116.63 0.03 -10.17 0.15 58744 -116.43 0.06 -10.19 0.14 58745 -116.48 0.06 -10.21 0.14 58746 -116.82 0.06 -10.32 0.14 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58697 -115.2 -11.2 58698 -115.1 -11.0 58699 -115.4 -10.9 58700 -115.9 -11.0 58701 -116.3 -11.0 58702 -116.4 -11.0 58703 -116.3 -11.1 58704 -116.2 -11.2 58705 -116.3 -11.3 58706 -116.6 -11.4 58707 -116.8 -11.4 58708 -116.8 -11.5 58709 -116.5 -11.5 58710 -116.3 -11.4 58711 -116.3 -11.2 58712 -116.5 -10.9 58713 -116.7 -10.8 58714 -116.7 -10.8 58715 -116.5 -10.9 58716 -116.5 -10.8 58717 -116.8 -10.7 58718 -117.5 -10.8 58719 -118.1 -10.9 58720 -118.3 -11.1 58721 -118.1 -11.1 58722 -117.8 -11.1 58723 -117.6 -11.2 58724 -117.4 -11.1 58725 -117.1 -10.8 58726 -117.2 -10.6 58727 -117.5 -10.6 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58740 -0.086 0.132 0.107 0.115 58741 -0.067 0.083 0.112 0.134 58742 -0.038 0.083 0.117 0.134 58743 -0.010 0.012 0.121 0.149 58744 0.006 0.025 0.125 0.143 58745 0.010 0.025 0.130 0.143 58746 0.008 0.025 0.135 0.143 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58697 -0.09 -0.03 58698 -0.11 -0.03 58699 -0.12 -0.03 58700 -0.13 -0.03 58701 -0.14 -0.03 58702 -0.12 -0.03 58703 -0.09 -0.03 58704 -0.06 -0.03 58705 -0.06 -0.03 58706 -0.08 -0.02 58707 -0.09 -0.01 58708 -0.10 -0.00 58709 -0.09 -0.01 58710 -0.09 -0.02 58711 -0.08 -0.03 58712 -0.08 -0.03 58713 -0.08 -0.04 58714 -0.08 -0.04 58715 -0.08 -0.05 58716 -0.11 -0.01 58717 -0.15 0.05 58718 -0.18 0.10 58719 -0.18 0.10 58720 -0.17 0.07 58721 -0.15 0.03 58722 -0.14 0.00 58723 -0.14 0.01 58724 -0.13 0.02 58725 -0.13 0.04 58726 -0.15 0.05 58727 -0.17 0.05 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).