********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 October 2019 Vol. XXXII No. 041 ______________________________________________________________________ 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 10 4 58760 0.19554 .00009 0.30874 .00009 -0.153689 0.000018 19 10 5 58761 0.19460 .00009 0.30751 .00009 -0.153303 0.000015 19 10 6 58762 0.19363 .00009 0.30619 .00009 -0.152837 0.000015 19 10 7 58763 0.19266 .00009 0.30488 .00009 -0.152374 0.000017 19 10 8 58764 0.19164 .00009 0.30349 .00009 -0.151979 0.000023 19 10 9 58765 0.19056 .00009 0.30203 .00009 -0.151682 0.000023 19 10 10 58766 0.18941 .00009 0.30073 .00009 -0.151509 0.000025 _______________________________________________________________________ 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 = 0.1164 + 0.0973 cos A - 0.0589 sin A - 0.0268 cos C - 0.0008 sin C y = 0.3544 - 0.0546 cos A - 0.0890 sin A - 0.0008 cos C + 0.0268 sin C UT1-UTC = -0.1564 - 0.00049 (MJD - 58774) - (UT2-UT1) where A = 2*pi*(MJD-58766)/365.25 and C = 2*pi*(MJD-58766)/435. TAI-UTC(MJD 58767) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58766)**0.80 S t = 0.00025 (MJD-58766)**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 11 58767 0.1883 0.2996 -0.15146 2019 10 12 58768 0.1872 0.2984 -0.15154 2019 10 13 58769 0.1861 0.2974 -0.15175 2019 10 14 58770 0.1850 0.2964 -0.15205 2019 10 15 58771 0.1839 0.2954 -0.15240 2019 10 16 58772 0.1828 0.2945 -0.15274 2019 10 17 58773 0.1817 0.2935 -0.15303 2019 10 18 58774 0.1805 0.2926 -0.15322 2019 10 19 58775 0.1794 0.2917 -0.15331 2019 10 20 58776 0.1782 0.2909 -0.15330 2019 10 21 58777 0.1770 0.2901 -0.15322 2019 10 22 58778 0.1757 0.2893 -0.15317 2019 10 23 58779 0.1745 0.2885 -0.15325 2019 10 24 58780 0.1732 0.2878 -0.15352 2019 10 25 58781 0.1719 0.2871 -0.15402 2019 10 26 58782 0.1705 0.2864 -0.15470 2019 10 27 58783 0.1692 0.2857 -0.15548 2019 10 28 58784 0.1678 0.2851 -0.15623 2019 10 29 58785 0.1665 0.2845 -0.15686 2019 10 30 58786 0.1651 0.2839 -0.15727 2019 10 31 58787 0.1637 0.2833 -0.15743 2019 11 1 58788 0.1623 0.2828 -0.15740 2019 11 2 58789 0.1608 0.2823 -0.15725 2019 11 3 58790 0.1594 0.2818 -0.15706 2019 11 4 58791 0.1580 0.2813 -0.15691 2019 11 5 58792 0.1565 0.2808 -0.15685 2019 11 6 58793 0.1550 0.2804 -0.15691 2019 11 7 58794 0.1535 0.2800 -0.15711 2019 11 8 58795 0.1520 0.2796 -0.15745 2019 11 9 58796 0.1505 0.2793 -0.15791 2019 11 10 58797 0.1490 0.2789 -0.15844 2019 11 11 58798 0.1475 0.2786 -0.15899 2019 11 12 58799 0.1460 0.2783 -0.15951 2019 11 13 58800 0.1444 0.2781 -0.15995 2019 11 14 58801 0.1429 0.2779 -0.16028 2019 11 15 58802 0.1413 0.2776 -0.16051 2019 11 16 58803 0.1398 0.2775 -0.16066 2019 11 17 58804 0.1382 0.2773 -0.16078 2019 11 18 58805 0.1366 0.2772 -0.16095 2019 11 19 58806 0.1350 0.2771 -0.16126 2019 11 20 58807 0.1335 0.2770 -0.16176 2019 11 21 58808 0.1319 0.2769 -0.16248 2019 11 22 58809 0.1303 0.2769 -0.16340 2019 11 23 58810 0.1287 0.2769 -0.16445 2019 11 24 58811 0.1271 0.2769 -0.16553 2019 11 25 58812 0.1255 0.2769 -0.16652 2019 11 26 58813 0.1239 0.2770 -0.16732 2019 11 27 58814 0.1223 0.2771 -0.16791 2019 11 28 58815 0.1207 0.2772 -0.16828 2019 11 29 58816 0.1191 0.2773 -0.16851 2019 11 30 58817 0.1175 0.2775 -0.16865 2019 12 1 58818 0.1159 0.2777 -0.16878 2019 12 2 58819 0.1143 0.2779 -0.16896 2019 12 3 58820 0.1127 0.2782 -0.16922 2019 12 4 58821 0.1111 0.2784 -0.16959 2019 12 5 58822 0.1096 0.2787 -0.17006 2019 12 6 58823 0.1080 0.2790 -0.17061 2019 12 7 58824 0.1064 0.2794 -0.17122 2019 12 8 58825 0.1048 0.2798 -0.17184 2019 12 9 58826 0.1032 0.2801 -0.17243 2019 12 10 58827 0.1017 0.2806 -0.17295 2019 12 11 58828 0.1001 0.2810 -0.17336 2019 12 12 58829 0.0986 0.2815 -0.17365 2019 12 13 58830 0.0970 0.2820 -0.17384 2019 12 14 58831 0.0955 0.2825 -0.17398 2019 12 15 58832 0.0940 0.2830 -0.17414 2019 12 16 58833 0.0924 0.2836 -0.17441 2019 12 17 58834 0.0909 0.2842 -0.17486 2019 12 18 58835 0.0894 0.2848 -0.17552 2019 12 19 58836 0.0879 0.2854 -0.17637 2019 12 20 58837 0.0865 0.2860 -0.17734 2019 12 21 58838 0.0850 0.2867 -0.17834 2019 12 22 58839 0.0835 0.2874 -0.17928 2019 12 23 58840 0.0821 0.2882 -0.18007 2019 12 24 58841 0.0807 0.2889 -0.18066 2019 12 25 58842 0.0792 0.2897 -0.18106 2019 12 26 58843 0.0778 0.2905 -0.18129 2019 12 27 58844 0.0764 0.2913 -0.18143 2019 12 28 58845 0.0751 0.2921 -0.18154 2019 12 29 58846 0.0737 0.2930 -0.18169 2019 12 30 58847 0.0723 0.2938 -0.18193 2019 12 31 58848 0.0710 0.2947 -0.18226 2020 1 1 58849 0.0697 0.2957 -0.18271 2020 1 2 58850 0.0684 0.2966 -0.18326 2020 1 3 58851 0.0671 0.2976 -0.18388 2020 1 4 58852 0.0658 0.2985 -0.18453 2020 1 5 58853 0.0646 0.2995 -0.18517 2020 1 6 58854 0.0633 0.3006 -0.18575 2020 1 7 58855 0.0621 0.3016 -0.18626 2020 1 8 58856 0.0609 0.3027 -0.18665 2020 1 9 58857 0.0598 0.3037 -0.18694 2020 1 10 58858 0.0586 0.3048 -0.18716 2020 1 11 58859 0.0575 0.3059 -0.18738 2020 1 12 58860 0.0564 0.3071 -0.18769 2020 1 13 58861 0.0553 0.3082 -0.18818 2020 1 14 58862 0.0542 0.3094 -0.18888 2020 1 15 58863 0.0531 0.3106 -0.18978 2020 1 16 58864 0.0521 0.3118 -0.19081 2020 1 17 58865 0.0511 0.3130 -0.19187 2020 1 18 58866 0.0501 0.3142 -0.19287 2020 1 19 58867 0.0491 0.3155 -0.19371 2020 1 20 58868 0.0482 0.3167 -0.19436 2020 1 21 58869 0.0473 0.3180 -0.19482 2020 1 22 58870 0.0464 0.3193 -0.19511 2020 1 23 58871 0.0455 0.3206 -0.19530 2020 1 24 58872 0.0447 0.3219 -0.19546 2020 1 25 58873 0.0439 0.3232 -0.19564 2020 1 26 58874 0.0431 0.3246 -0.19591 2020 1 27 58875 0.0423 0.3259 -0.19616 2020 1 28 58876 0.0415 0.3273 -0.19653 2020 1 29 58877 0.0408 0.3287 -0.19701 2020 1 30 58878 0.0401 0.3301 -0.19757 2020 1 31 58879 0.0395 0.3315 -0.19818 2020 2 1 58880 0.0388 0.3329 -0.19880 2020 2 2 58881 0.0382 0.3343 -0.19938 2020 2 3 58882 0.0376 0.3357 -0.19990 2020 2 4 58883 0.0371 0.3371 -0.20032 2020 2 5 58884 0.0365 0.3386 -0.20066 2020 2 6 58885 0.0360 0.3400 -0.20093 2020 2 7 58886 0.0356 0.3415 -0.20118 2020 2 8 58887 0.0351 0.3430 -0.20152 2020 2 9 58888 0.0347 0.3445 -0.20202 2020 2 10 58889 0.0343 0.3459 -0.20277 2020 2 11 58890 0.0339 0.3474 -0.20377 2020 2 12 58891 0.0336 0.3489 -0.20497 2020 2 13 58892 0.0333 0.3504 -0.20625 2020 2 14 58893 0.0330 0.3519 -0.20749 2020 2 15 58894 0.0328 0.3534 -0.20858 2020 2 16 58895 0.0325 0.3550 -0.20947 2020 2 17 58896 0.0323 0.3565 -0.21015 2020 2 18 58897 0.0322 0.3580 -0.21065 2020 2 19 58898 0.0321 0.3595 -0.21103 2020 2 20 58899 0.0319 0.3610 -0.21137 2020 2 21 58900 0.0319 0.3626 -0.21173 2020 2 22 58901 0.0318 0.3641 -0.21216 2020 2 23 58902 0.0318 0.3656 -0.21271 2020 2 24 58903 0.0318 0.3671 -0.21338 2020 2 25 58904 0.0319 0.3687 -0.21417 2020 2 26 58905 0.0319 0.3702 -0.21506 2020 2 27 58906 0.0321 0.3717 -0.21600 2020 2 28 58907 0.0322 0.3732 -0.21696 2020 2 29 58908 0.0323 0.3748 -0.21789 2020 3 1 58909 0.0325 0.3763 -0.21875 2020 3 2 58910 0.0328 0.3778 -0.21953 2020 3 3 58911 0.0330 0.3793 -0.22020 2020 3 4 58912 0.0333 0.3808 -0.22080 2020 3 5 58913 0.0336 0.3823 -0.22136 2020 3 6 58914 0.0340 0.3838 -0.22197 2020 3 7 58915 0.0343 0.3853 -0.22271 2020 3 8 58916 0.0347 0.3868 -0.22367 2020 3 9 58917 0.0352 0.3883 -0.22492 2020 3 10 58918 0.0356 0.3897 -0.22642 2020 3 11 58919 0.0361 0.3912 -0.22808 2020 3 12 58920 0.0366 0.3927 -0.22977 2020 3 13 58921 0.0372 0.3941 -0.23134 2020 3 14 58922 0.0377 0.3956 -0.23270 2020 3 15 58923 0.0383 0.3970 -0.23380 2020 3 16 58924 0.0390 0.3984 -0.23469 2020 3 17 58925 0.0396 0.3998 -0.23542 2020 3 18 58926 0.0403 0.4012 -0.23607 2020 3 19 58927 0.0410 0.4026 -0.23671 2020 3 20 58928 0.0418 0.4040 -0.23742 2020 3 21 58929 0.0425 0.4054 -0.23822 2020 3 22 58930 0.0433 0.4067 -0.23913 2020 3 23 58931 0.0442 0.4081 -0.24016 2020 3 24 58932 0.0450 0.4094 -0.24128 2020 3 25 58933 0.0459 0.4107 -0.24247 2020 3 26 58934 0.0468 0.4120 -0.24368 2020 3 27 58935 0.0477 0.4133 -0.24485 2020 3 28 58936 0.0487 0.4146 -0.24595 2020 3 29 58937 0.0497 0.4159 -0.24695 2020 3 30 58938 0.0507 0.4171 -0.24784 2020 3 31 58939 0.0517 0.4184 -0.24862 2020 4 1 58940 0.0528 0.4196 -0.24934 2020 4 2 58941 0.0539 0.4208 -0.25005 2020 4 3 58942 0.0550 0.4220 -0.25084 2020 4 4 58943 0.0561 0.4231 -0.25181 2020 4 5 58944 0.0573 0.4243 -0.25303 2020 4 6 58945 0.0584 0.4254 -0.25453 2020 4 7 58946 0.0596 0.4265 -0.25625 2020 4 8 58947 0.0609 0.4276 -0.25807 2020 4 9 58948 0.0621 0.4287 -0.25985 2020 4 10 58949 0.0634 0.4297 -0.26143 2020 4 11 58950 0.0647 0.4308 -0.26276 2020 4 12 58951 0.0660 0.4318 -0.26382 2020 4 13 58952 0.0673 0.4328 -0.26468 2020 4 14 58953 0.0687 0.4338 -0.26540 2020 4 15 58954 0.0701 0.4347 -0.26609 2020 4 16 58955 0.0715 0.4357 -0.26681 2020 4 17 58956 0.0729 0.4366 -0.26761 2020 4 18 58957 0.0743 0.4375 -0.26852 2020 4 19 58958 0.0758 0.4383 -0.26953 2020 4 20 58959 0.0772 0.4392 -0.27062 2020 4 21 58960 0.0787 0.4400 -0.27175 2020 4 22 58961 0.0802 0.4408 -0.27288 2020 4 23 58962 0.0817 0.4416 -0.27395 2020 4 24 58963 0.0833 0.4423 -0.27490 2020 4 25 58964 0.0848 0.4430 -0.27572 2020 4 26 58965 0.0864 0.4437 -0.27638 2020 4 27 58966 0.0880 0.4444 -0.27689 2020 4 28 58967 0.0896 0.4451 -0.27730 2020 4 29 58968 0.0912 0.4457 -0.27767 2020 4 30 58969 0.0929 0.4463 -0.27808 2020 5 1 58970 0.0945 0.4469 -0.27864 2020 5 2 58971 0.0962 0.4475 -0.27940 2020 5 3 58972 0.0978 0.4480 -0.28044 2020 5 4 58973 0.0995 0.4485 -0.28172 2020 5 5 58974 0.1012 0.4490 -0.28316 2020 5 6 58975 0.1029 0.4494 -0.28463 2020 5 7 58976 0.1046 0.4499 -0.28598 2020 5 8 58977 0.1063 0.4503 -0.28709 2020 5 9 58978 0.1081 0.4506 -0.28792 2020 5 10 58979 0.1098 0.4510 -0.28848 2020 5 11 58980 0.1116 0.4513 -0.28884 2020 5 12 58981 0.1133 0.4516 -0.28911 2020 5 13 58982 0.1151 0.4519 -0.28936 2020 5 14 58983 0.1169 0.4521 -0.28965 2020 5 15 58984 0.1187 0.4523 -0.29002 2020 5 16 58985 0.1204 0.4525 -0.29047 2020 5 17 58986 0.1222 0.4526 -0.29099 2020 5 18 58987 0.1240 0.4528 -0.29155 2020 5 19 58988 0.1258 0.4529 -0.29213 2020 5 20 58989 0.1276 0.4529 -0.29269 2020 5 21 58990 0.1294 0.4530 -0.29318 2020 5 22 58991 0.1313 0.4530 -0.29356 2020 5 23 58992 0.1331 0.4530 -0.29374 2020 5 24 58993 0.1349 0.4530 -0.29376 2020 5 25 58994 0.1367 0.4529 -0.29366 2020 5 26 58995 0.1385 0.4528 -0.29351 2020 5 27 58996 0.1403 0.4527 -0.29337 2020 5 28 58997 0.1422 0.4525 -0.29326 2020 5 29 58998 0.1440 0.4524 -0.29329 2020 5 30 58999 0.1458 0.4522 -0.29355 2020 5 31 59000 0.1476 0.4519 -0.29402 2020 6 1 59001 0.1494 0.4517 -0.29465 2020 6 2 59002 0.1512 0.4514 -0.29538 2020 6 3 59003 0.1530 0.4511 -0.29606 2020 6 4 59004 0.1548 0.4507 -0.29661 2020 6 5 59005 0.1566 0.4504 -0.29687 2020 6 6 59006 0.1584 0.4500 -0.29688 2020 6 7 59007 0.1602 0.4495 -0.29671 2020 6 8 59008 0.1620 0.4491 -0.29641 2020 6 9 59009 0.1637 0.4486 -0.29613 2020 6 10 59010 0.1655 0.4481 -0.29588 2020 6 11 59011 0.1673 0.4476 -0.29578 2020 6 12 59012 0.1690 0.4470 -0.29577 2020 6 13 59013 0.1707 0.4464 -0.29587 2020 6 14 59014 0.1725 0.4458 -0.29610 2020 6 15 59015 0.1742 0.4452 -0.29640 2020 6 16 59016 0.1759 0.4445 -0.29673 2020 6 17 59017 0.1776 0.4438 -0.29701 2020 6 18 59018 0.1793 0.4431 -0.29724 2020 6 19 59019 0.1809 0.4423 -0.29738 2020 6 20 59020 0.1826 0.4416 -0.29738 2020 6 21 59021 0.1843 0.4408 -0.29726 2020 6 22 59022 0.1859 0.4400 -0.29704 2020 6 23 59023 0.1875 0.4391 -0.29676 2020 6 24 59024 0.1891 0.4382 -0.29656 2020 6 25 59025 0.1907 0.4374 -0.29650 2020 6 26 59026 0.1923 0.4364 -0.29663 2020 6 27 59027 0.1938 0.4355 -0.29698 2020 6 28 59028 0.1954 0.4345 -0.29752 2020 6 29 59029 0.1969 0.4335 -0.29813 2020 6 30 59030 0.1984 0.4325 -0.29873 2020 7 1 59031 0.1999 0.4315 -0.29913 2020 7 2 59032 0.2014 0.4304 -0.29929 2020 7 3 59033 0.2028 0.4294 -0.29925 2020 7 4 59034 0.2043 0.4283 -0.29901 2020 7 5 59035 0.2057 0.4271 -0.29868 2020 7 6 59036 0.2071 0.4260 -0.29834 2020 7 7 59037 0.2084 0.4248 -0.29802 2020 7 8 59038 0.2098 0.4236 -0.29785 2020 7 9 59039 0.2111 0.4224 -0.29775 2020 7 10 59040 0.2124 0.4212 -0.29771 2020 7 11 59041 0.2137 0.4199 -0.29777 2020 7 12 59042 0.2150 0.4187 -0.29785 2020 7 13 59043 0.2162 0.4174 -0.29791 2020 7 14 59044 0.2174 0.4161 -0.29797 2020 7 15 59045 0.2186 0.4148 -0.29794 2020 7 16 59046 0.2198 0.4134 -0.29780 2020 7 17 59047 0.2210 0.4121 -0.29750 2020 7 18 59048 0.2221 0.4107 -0.29705 2020 7 19 59049 0.2232 0.4093 -0.29649 2020 7 20 59050 0.2242 0.4079 -0.29588 2020 7 21 59051 0.2253 0.4065 -0.29529 2020 7 22 59052 0.2263 0.4050 -0.29481 2020 7 23 59053 0.2273 0.4036 -0.29454 2020 7 24 59054 0.2283 0.4021 -0.29450 2020 7 25 59055 0.2292 0.4006 -0.29465 2020 7 26 59056 0.2301 0.3991 -0.29496 2020 7 27 59057 0.2310 0.3976 -0.29528 2020 7 28 59058 0.2318 0.3961 -0.29553 2020 7 29 59059 0.2327 0.3945 -0.29562 2020 7 30 59060 0.2335 0.3930 -0.29555 2020 7 31 59061 0.2342 0.3914 -0.29529 2020 8 1 59062 0.2350 0.3898 -0.29484 2020 8 2 59063 0.2357 0.3883 -0.29440 2020 8 3 59064 0.2363 0.3867 -0.29399 2020 8 4 59065 0.2370 0.3851 -0.29360 2020 8 5 59066 0.2376 0.3834 -0.29327 2020 8 6 59067 0.2382 0.3818 -0.29304 2020 8 7 59068 0.2388 0.3802 -0.29292 2020 8 8 59069 0.2393 0.3785 -0.29282 2020 8 9 59070 0.2398 0.3769 -0.29273 2020 8 10 59071 0.2402 0.3752 -0.29262 2020 8 11 59072 0.2407 0.3736 -0.29247 2020 8 12 59073 0.2411 0.3719 -0.29221 2020 8 13 59074 0.2415 0.3702 -0.29182 2020 8 14 59075 0.2418 0.3685 -0.29134 2020 8 15 59076 0.2421 0.3669 -0.29080 2020 8 16 59077 0.2424 0.3652 -0.29032 2020 8 17 59078 0.2426 0.3635 -0.28997 2020 8 18 59079 0.2428 0.3618 -0.28976 2020 8 19 59080 0.2430 0.3601 -0.28974 2020 8 20 59081 0.2432 0.3584 -0.28997 2020 8 21 59082 0.2433 0.3567 -0.29044 2020 8 22 59083 0.2433 0.3550 -0.29109 2020 8 23 59084 0.2434 0.3533 -0.29182 2020 8 24 59085 0.2434 0.3516 -0.29248 2020 8 25 59086 0.2434 0.3499 -0.29291 2020 8 26 59087 0.2433 0.3482 -0.29307 2020 8 27 59088 0.2433 0.3465 -0.29301 2020 8 28 59089 0.2431 0.3447 -0.29280 2020 8 29 59090 0.2430 0.3430 -0.29243 2020 8 30 59091 0.2428 0.3414 -0.29204 2020 8 31 59092 0.2426 0.3397 -0.29177 2020 9 1 59093 0.2424 0.3380 -0.29174 2020 9 2 59094 0.2421 0.3363 -0.29192 2020 9 3 59095 0.2418 0.3346 -0.29227 2020 9 4 59096 0.2414 0.3329 -0.29277 2020 9 5 59097 0.2410 0.3313 -0.29337 2020 9 6 59098 0.2406 0.3296 -0.29400 2020 9 7 59099 0.2402 0.3279 -0.29460 2020 9 8 59100 0.2397 0.3263 -0.29514 2020 9 9 59101 0.2392 0.3246 -0.29558 2020 9 10 59102 0.2387 0.3230 -0.29594 2020 9 11 59103 0.2381 0.3214 -0.29624 2020 9 12 59104 0.2375 0.3198 -0.29645 2020 9 13 59105 0.2369 0.3182 -0.29667 2020 9 14 59106 0.2362 0.3166 -0.29699 2020 9 15 59107 0.2355 0.3150 -0.29748 2020 9 16 59108 0.2348 0.3134 -0.29820 2020 9 17 59109 0.2340 0.3118 -0.29918 2020 9 18 59110 0.2332 0.3103 -0.30041 2020 9 19 59111 0.2324 0.3088 -0.30178 2020 9 20 59112 0.2316 0.3072 -0.30312 2020 9 21 59113 0.2307 0.3057 -0.30429 2020 9 22 59114 0.2298 0.3042 -0.30517 2020 9 23 59115 0.2288 0.3027 -0.30579 2020 9 24 59116 0.2279 0.3013 -0.30616 2020 9 25 59117 0.2269 0.2998 -0.30637 2020 9 26 59118 0.2259 0.2984 -0.30655 2020 9 27 59119 0.2248 0.2970 -0.30673 2020 9 28 59120 0.2237 0.2956 -0.30702 2020 9 29 59121 0.2226 0.2942 -0.30741 2020 9 30 59122 0.2215 0.2928 -0.30795 2020 10 1 59123 0.2203 0.2915 -0.30865 2020 10 2 59124 0.2191 0.2901 -0.30949 2020 10 3 59125 0.2179 0.2888 -0.31039 2020 10 4 59126 0.2166 0.2875 -0.31125 2020 10 5 59127 0.2154 0.2862 -0.31206 2020 10 6 59128 0.2141 0.2850 -0.31280 2020 10 7 59129 0.2127 0.2837 -0.31345 2020 10 8 59130 0.2114 0.2825 -0.31399 2020 10 9 59131 0.2100 0.2813 -0.31444 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) 58747 -117.25 0.10 -10.49 0.14 58748 -117.43 0.10 -10.60 0.14 58749 -117.25 0.10 -10.57 0.14 58750 -116.86 0.06 -10.45 0.16 58751 -116.44 0.21 -10.27 0.14 58752 -116.10 0.21 -9.98 0.14 58753 -115.92 0.21 -9.61 0.14 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58747 0.008 0.040 0.137 0.136 58748 0.011 0.038 0.138 0.142 58749 0.019 0.038 0.137 0.142 58750 0.032 0.025 0.136 0.158 58751 0.050 0.084 0.133 0.142 58752 0.073 0.084 0.128 0.142 58753 0.098 0.084 0.124 0.142 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).