********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 26 September 2019 Vol. XXXII No. 039 ______________________________________________________________________ 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 20 58746 0.20486 .00009 0.32295 .00009 -0.152909 0.000014 19 9 21 58747 0.20380 .00009 0.32167 .00009 -0.152551 0.000013 19 9 22 58748 0.20296 .00009 0.32040 .00009 -0.152107 0.000013 19 9 23 58749 0.20228 .00009 0.31937 .00009 -0.151650 0.000012 19 9 24 58750 0.20166 .00009 0.31850 .00009 -0.151219 0.000009 19 9 25 58751 0.20101 .00009 0.31774 .00009 -0.150916 0.000008 19 9 26 58752 0.20025 .00009 0.31709 .00009 -0.150897 0.000008 _______________________________________________________________________ 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 = 0.1121 + 0.1066 cos A - 0.0289 sin A - 0.0211 cos C - 0.0091 sin C y = 0.3509 - 0.0277 cos A - 0.0962 sin A - 0.0091 cos C + 0.0211 sin C UT1-UTC = -0.1645 - 0.00052 (MJD - 58760) - (UT2-UT1) where A = 2*pi*(MJD-58752)/365.25 and C = 2*pi*(MJD-58752)/435. TAI-UTC(MJD 58753) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58752)**0.80 S t = 0.00025 (MJD-58752)**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 27 58753 0.1993 0.3164 -0.15122 2019 9 28 58754 0.1983 0.3157 -0.15184 2019 9 29 58755 0.1973 0.3148 -0.15262 2019 9 30 58756 0.1963 0.3138 -0.15339 2019 10 1 58757 0.1953 0.3127 -0.15398 2019 10 2 58758 0.1945 0.3116 -0.15429 2019 10 3 58759 0.1936 0.3106 -0.15433 2019 10 4 58760 0.1928 0.3096 -0.15414 2019 10 5 58761 0.1919 0.3087 -0.15381 2019 10 6 58762 0.1909 0.3078 -0.15345 2019 10 7 58763 0.1899 0.3069 -0.15316 2019 10 8 58764 0.1888 0.3060 -0.15296 2019 10 9 58765 0.1878 0.3050 -0.15283 2019 10 10 58766 0.1868 0.3041 -0.15279 2019 10 11 58767 0.1858 0.3032 -0.15284 2019 10 12 58768 0.1848 0.3023 -0.15301 2019 10 13 58769 0.1837 0.3014 -0.15327 2019 10 14 58770 0.1827 0.3005 -0.15359 2019 10 15 58771 0.1816 0.2997 -0.15395 2019 10 16 58772 0.1804 0.2989 -0.15428 2019 10 17 58773 0.1793 0.2981 -0.15456 2019 10 18 58774 0.1781 0.2973 -0.15476 2019 10 19 58775 0.1770 0.2965 -0.15491 2019 10 20 58776 0.1758 0.2957 -0.15503 2019 10 21 58777 0.1746 0.2949 -0.15518 2019 10 22 58778 0.1734 0.2942 -0.15542 2019 10 23 58779 0.1722 0.2935 -0.15584 2019 10 24 58780 0.1710 0.2928 -0.15651 2019 10 25 58781 0.1697 0.2922 -0.15743 2019 10 26 58782 0.1684 0.2915 -0.15857 2019 10 27 58783 0.1671 0.2909 -0.15980 2019 10 28 58784 0.1658 0.2903 -0.16099 2019 10 29 58785 0.1645 0.2897 -0.16204 2019 10 30 58786 0.1632 0.2891 -0.16287 2019 10 31 58787 0.1619 0.2886 -0.16347 2019 11 1 58788 0.1605 0.2881 -0.16389 2019 11 2 58789 0.1592 0.2876 -0.16419 2019 11 3 58790 0.1578 0.2871 -0.16446 2019 11 4 58791 0.1564 0.2866 -0.16475 2019 11 5 58792 0.1550 0.2862 -0.16512 2019 11 6 58793 0.1536 0.2858 -0.16560 2019 11 7 58794 0.1522 0.2854 -0.16619 2019 11 8 58795 0.1507 0.2850 -0.16688 2019 11 9 58796 0.1493 0.2847 -0.16767 2019 11 10 58797 0.1478 0.2844 -0.16850 2019 11 11 58798 0.1464 0.2841 -0.16933 2019 11 12 58799 0.1449 0.2838 -0.17011 2019 11 13 58800 0.1434 0.2835 -0.17080 2019 11 14 58801 0.1420 0.2833 -0.17137 2019 11 15 58802 0.1405 0.2831 -0.17181 2019 11 16 58803 0.1390 0.2829 -0.17216 2019 11 17 58804 0.1375 0.2827 -0.17247 2019 11 18 58805 0.1360 0.2826 -0.17283 2019 11 19 58806 0.1345 0.2825 -0.17331 2019 11 20 58807 0.1330 0.2824 -0.17398 2019 11 21 58808 0.1314 0.2823 -0.17487 2019 11 22 58809 0.1299 0.2823 -0.17595 2019 11 23 58810 0.1284 0.2822 -0.17716 2019 11 24 58811 0.1269 0.2822 -0.17839 2019 11 25 58812 0.1253 0.2823 -0.17953 2019 11 26 58813 0.1238 0.2823 -0.18049 2019 11 27 58814 0.1223 0.2824 -0.18123 2019 11 28 58815 0.1208 0.2825 -0.18177 2019 11 29 58816 0.1192 0.2826 -0.18215 2019 11 30 58817 0.1177 0.2828 -0.18246 2019 12 1 58818 0.1162 0.2829 -0.18276 2019 12 2 58819 0.1146 0.2831 -0.18311 2019 12 3 58820 0.1131 0.2833 -0.18354 2019 12 4 58821 0.1116 0.2836 -0.18408 2019 12 5 58822 0.1101 0.2838 -0.18473 2019 12 6 58823 0.1085 0.2841 -0.18547 2019 12 7 58824 0.1070 0.2844 -0.18626 2019 12 8 58825 0.1055 0.2847 -0.18707 2019 12 9 58826 0.1040 0.2851 -0.18786 2019 12 10 58827 0.1025 0.2855 -0.18857 2019 12 11 58828 0.1010 0.2859 -0.18917 2019 12 12 58829 0.0995 0.2863 -0.18965 2019 12 13 58830 0.0980 0.2867 -0.19002 2019 12 14 58831 0.0966 0.2872 -0.19033 2019 12 15 58832 0.0951 0.2877 -0.19067 2019 12 16 58833 0.0936 0.2882 -0.19110 2019 12 17 58834 0.0922 0.2888 -0.19171 2019 12 18 58835 0.0907 0.2893 -0.19251 2019 12 19 58836 0.0893 0.2899 -0.19349 2019 12 20 58837 0.0879 0.2905 -0.19458 2019 12 21 58838 0.0865 0.2911 -0.19570 2019 12 22 58839 0.0851 0.2918 -0.19674 2019 12 23 58840 0.0837 0.2925 -0.19763 2019 12 24 58841 0.0823 0.2932 -0.19832 2019 12 25 58842 0.0809 0.2939 -0.19880 2019 12 26 58843 0.0796 0.2946 -0.19911 2019 12 27 58844 0.0782 0.2954 -0.19931 2019 12 28 58845 0.0769 0.2961 -0.19948 2019 12 29 58846 0.0756 0.2969 -0.19968 2019 12 30 58847 0.0743 0.2977 -0.19995 2019 12 31 58848 0.0730 0.2986 -0.20033 2020 1 1 58849 0.0717 0.2994 -0.20081 2020 1 2 58850 0.0705 0.3003 -0.20138 2020 1 3 58851 0.0692 0.3012 -0.20202 2020 1 4 58852 0.0680 0.3021 -0.20269 2020 1 5 58853 0.0668 0.3031 -0.20335 2020 1 6 58854 0.0656 0.3040 -0.20396 2020 1 7 58855 0.0644 0.3050 -0.20448 2020 1 8 58856 0.0633 0.3060 -0.20488 2020 1 9 58857 0.0621 0.3070 -0.20519 2020 1 10 58858 0.0610 0.3080 -0.20542 2020 1 11 58859 0.0599 0.3090 -0.20565 2020 1 12 58860 0.0588 0.3101 -0.20597 2020 1 13 58861 0.0578 0.3112 -0.20638 2020 1 14 58862 0.0567 0.3123 -0.20701 2020 1 15 58863 0.0557 0.3134 -0.20783 2020 1 16 58864 0.0547 0.3145 -0.20880 2020 1 17 58865 0.0537 0.3156 -0.20980 2020 1 18 58866 0.0528 0.3168 -0.21074 2020 1 19 58867 0.0519 0.3179 -0.21153 2020 1 20 58868 0.0509 0.3191 -0.21214 2020 1 21 58869 0.0501 0.3203 -0.21255 2020 1 22 58870 0.0492 0.3215 -0.21280 2020 1 23 58871 0.0483 0.3228 -0.21295 2020 1 24 58872 0.0475 0.3240 -0.21306 2020 1 25 58873 0.0467 0.3252 -0.21321 2020 1 26 58874 0.0460 0.3265 -0.21344 2020 1 27 58875 0.0452 0.3278 -0.21378 2020 1 28 58876 0.0445 0.3291 -0.21423 2020 1 29 58877 0.0438 0.3304 -0.21480 2020 1 30 58878 0.0431 0.3317 -0.21546 2020 1 31 58879 0.0425 0.3330 -0.21616 2020 2 1 58880 0.0418 0.3343 -0.21686 2020 2 2 58881 0.0412 0.3356 -0.21753 2020 2 3 58882 0.0407 0.3370 -0.21813 2020 2 4 58883 0.0401 0.3383 -0.21864 2020 2 5 58884 0.0396 0.3397 -0.21906 2020 2 6 58885 0.0391 0.3411 -0.21940 2020 2 7 58886 0.0386 0.3424 -0.21974 2020 2 8 58887 0.0382 0.3438 -0.22015 2020 2 9 58888 0.0378 0.3452 -0.22073 2020 2 10 58889 0.0374 0.3466 -0.22155 2020 2 11 58890 0.0370 0.3480 -0.22263 2020 2 12 58891 0.0367 0.3494 -0.22390 2020 2 13 58892 0.0364 0.3509 -0.22525 2020 2 14 58893 0.0361 0.3523 -0.22656 2020 2 15 58894 0.0359 0.3537 -0.22772 2020 2 16 58895 0.0357 0.3551 -0.22868 2020 2 17 58896 0.0355 0.3566 -0.22943 2020 2 18 58897 0.0353 0.3580 -0.23000 2020 2 19 58898 0.0352 0.3594 -0.23045 2020 2 20 58899 0.0350 0.3609 -0.23086 2020 2 21 58900 0.0350 0.3623 -0.23129 2020 2 22 58901 0.0349 0.3638 -0.23180 2020 2 23 58902 0.0349 0.3652 -0.23241 2020 2 24 58903 0.0349 0.3667 -0.23315 2020 2 25 58904 0.0349 0.3681 -0.23401 2020 2 26 58905 0.0350 0.3695 -0.23496 2020 2 27 58906 0.0351 0.3710 -0.23597 2020 2 28 58907 0.0352 0.3724 -0.23700 2020 2 29 58908 0.0354 0.3739 -0.23799 2020 3 1 58909 0.0355 0.3753 -0.23892 2020 3 2 58910 0.0357 0.3767 -0.23976 2020 3 3 58911 0.0360 0.3782 -0.24051 2020 3 4 58912 0.0362 0.3796 -0.24118 2020 3 5 58913 0.0365 0.3810 -0.24181 2020 3 6 58914 0.0368 0.3824 -0.24248 2020 3 7 58915 0.0372 0.3839 -0.24328 2020 3 8 58916 0.0376 0.3853 -0.24432 2020 3 9 58917 0.0380 0.3867 -0.24563 2020 3 10 58918 0.0384 0.3881 -0.24720 2020 3 11 58919 0.0389 0.3895 -0.24893 2020 3 12 58920 0.0394 0.3909 -0.25068 2020 3 13 58921 0.0399 0.3922 -0.25231 2020 3 14 58922 0.0404 0.3936 -0.25372 2020 3 15 58923 0.0410 0.3950 -0.25489 2020 3 16 58924 0.0416 0.3963 -0.25583 2020 3 17 58925 0.0422 0.3977 -0.25661 2020 3 18 58926 0.0429 0.3990 -0.25731 2020 3 19 58927 0.0435 0.4003 -0.25800 2020 3 20 58928 0.0443 0.4016 -0.25875 2020 3 21 58929 0.0450 0.4029 -0.25958 2020 3 22 58930 0.0457 0.4042 -0.26054 2020 3 23 58931 0.0465 0.4055 -0.26160 2020 3 24 58932 0.0473 0.4068 -0.26276 2020 3 25 58933 0.0482 0.4081 -0.26398 2020 3 26 58934 0.0491 0.4093 -0.26521 2020 3 27 58935 0.0499 0.4105 -0.26640 2020 3 28 58936 0.0509 0.4117 -0.26752 2020 3 29 58937 0.0518 0.4129 -0.26852 2020 3 30 58938 0.0528 0.4141 -0.26940 2020 3 31 58939 0.0538 0.4153 -0.27016 2020 4 1 58940 0.0548 0.4165 -0.27085 2020 4 2 58941 0.0558 0.4176 -0.27153 2020 4 3 58942 0.0569 0.4188 -0.27227 2020 4 4 58943 0.0579 0.4199 -0.27319 2020 4 5 58944 0.0591 0.4210 -0.27434 2020 4 6 58945 0.0602 0.4220 -0.27576 2020 4 7 58946 0.0613 0.4231 -0.27740 2020 4 8 58947 0.0625 0.4242 -0.27914 2020 4 9 58948 0.0637 0.4252 -0.28083 2020 4 10 58949 0.0649 0.4262 -0.28235 2020 4 11 58950 0.0662 0.4272 -0.28361 2020 4 12 58951 0.0674 0.4282 -0.28462 2020 4 13 58952 0.0687 0.4291 -0.28542 2020 4 14 58953 0.0700 0.4300 -0.28611 2020 4 15 58954 0.0713 0.4310 -0.28675 2020 4 16 58955 0.0727 0.4318 -0.28742 2020 4 17 58956 0.0740 0.4327 -0.28814 2020 4 18 58957 0.0754 0.4336 -0.28896 2020 4 19 58958 0.0768 0.4344 -0.28985 2020 4 20 58959 0.0782 0.4352 -0.29083 2020 4 21 58960 0.0796 0.4360 -0.29185 2020 4 22 58961 0.0811 0.4368 -0.29288 2020 4 23 58962 0.0826 0.4375 -0.29386 2020 4 24 58963 0.0840 0.4382 -0.29476 2020 4 25 58964 0.0855 0.4389 -0.29553 2020 4 26 58965 0.0870 0.4396 -0.29615 2020 4 27 58966 0.0886 0.4403 -0.29664 2020 4 28 58967 0.0901 0.4409 -0.29701 2020 4 29 58968 0.0917 0.4415 -0.29734 2020 4 30 58969 0.0932 0.4421 -0.29768 2020 5 1 58970 0.0948 0.4427 -0.29813 2020 5 2 58971 0.0964 0.4432 -0.29878 2020 5 3 58972 0.0980 0.4437 -0.29967 2020 5 4 58973 0.0996 0.4442 -0.30080 2020 5 5 58974 0.1013 0.4447 -0.30210 2020 5 6 58975 0.1029 0.4451 -0.30344 2020 5 7 58976 0.1046 0.4455 -0.30470 2020 5 8 58977 0.1062 0.4459 -0.30569 2020 5 9 58978 0.1079 0.4463 -0.30641 2020 5 10 58979 0.1096 0.4466 -0.30690 2020 5 11 58980 0.1113 0.4469 -0.30722 2020 5 12 58981 0.1130 0.4472 -0.30748 2020 5 13 58982 0.1147 0.4475 -0.30774 2020 5 14 58983 0.1164 0.4477 -0.30811 2020 5 15 58984 0.1181 0.4480 -0.30856 2020 5 16 58985 0.1198 0.4481 -0.30914 2020 5 17 58986 0.1215 0.4483 -0.30985 2020 5 18 58987 0.1233 0.4484 -0.31066 2020 5 19 58988 0.1250 0.4485 -0.31153 2020 5 20 58989 0.1267 0.4486 -0.31238 2020 5 21 58990 0.1285 0.4487 -0.31322 2020 5 22 58991 0.1302 0.4487 -0.31397 2020 5 23 58992 0.1320 0.4487 -0.31458 2020 5 24 58993 0.1337 0.4487 -0.31505 2020 5 25 58994 0.1355 0.4486 -0.31538 2020 5 26 58995 0.1372 0.4486 -0.31560 2020 5 27 58996 0.1390 0.4484 -0.31583 2020 5 28 58997 0.1408 0.4483 -0.31612 2020 5 29 58998 0.1425 0.4482 -0.31658 2020 5 30 58999 0.1443 0.4480 -0.31724 2020 5 31 59000 0.1460 0.4478 -0.31814 2020 6 1 59001 0.1478 0.4475 -0.31921 2020 6 2 59002 0.1495 0.4473 -0.32034 2020 6 3 59003 0.1512 0.4470 -0.32136 2020 6 4 59004 0.1530 0.4467 -0.32216 2020 6 5 59005 0.1547 0.4463 -0.32275 2020 6 6 59006 0.1564 0.4459 -0.32309 2020 6 7 59007 0.1582 0.4456 -0.32327 2020 6 8 59008 0.1599 0.4451 -0.32335 2020 6 9 59009 0.1616 0.4447 -0.32340 2020 6 10 59010 0.1633 0.4442 -0.32354 2020 6 11 59011 0.1650 0.4437 -0.32372 2020 6 12 59012 0.1667 0.4432 -0.32396 2020 6 13 59013 0.1684 0.4426 -0.32428 2020 6 14 59014 0.1700 0.4421 -0.32464 2020 6 15 59015 0.1717 0.4415 -0.32501 2020 6 16 59016 0.1733 0.4408 -0.32540 2020 6 17 59017 0.1750 0.4402 -0.32572 2020 6 18 59018 0.1766 0.4395 -0.32592 2020 6 19 59019 0.1782 0.4388 -0.32596 2020 6 20 59020 0.1798 0.4381 -0.32583 2020 6 21 59021 0.1814 0.4373 -0.32554 2020 6 22 59022 0.1830 0.4366 -0.32514 2020 6 23 59023 0.1846 0.4358 -0.32468 2020 6 24 59024 0.1861 0.4350 -0.32425 2020 6 25 59025 0.1877 0.4341 -0.32396 2020 6 26 59026 0.1892 0.4332 -0.32387 2020 6 27 59027 0.1907 0.4324 -0.32396 2020 6 28 59028 0.1922 0.4314 -0.32429 2020 6 29 59029 0.1937 0.4305 -0.32471 2020 6 30 59030 0.1951 0.4296 -0.32515 2020 7 1 59031 0.1966 0.4286 -0.32549 2020 7 2 59032 0.1980 0.4276 -0.32567 2020 7 3 59033 0.1994 0.4266 -0.32563 2020 7 4 59034 0.2008 0.4255 -0.32533 2020 7 5 59035 0.2021 0.4244 -0.32495 2020 7 6 59036 0.2035 0.4234 -0.32452 2020 7 7 59037 0.2048 0.4223 -0.32405 2020 7 8 59038 0.2061 0.4211 -0.32360 2020 7 9 59039 0.2074 0.4200 -0.32324 2020 7 10 59040 0.2087 0.4188 -0.32297 2020 7 11 59041 0.2099 0.4176 -0.32274 2020 7 12 59042 0.2112 0.4164 -0.32252 2020 7 13 59043 0.2124 0.4152 -0.32231 2020 7 14 59044 0.2135 0.4140 -0.32208 2020 7 15 59045 0.2147 0.4127 -0.32175 2020 7 16 59046 0.2158 0.4114 -0.32128 2020 7 17 59047 0.2169 0.4102 -0.32070 2020 7 18 59048 0.2180 0.4088 -0.32004 2020 7 19 59049 0.2191 0.4075 -0.31937 2020 7 20 59050 0.2201 0.4062 -0.31876 2020 7 21 59051 0.2211 0.4048 -0.31822 2020 7 22 59052 0.2221 0.4035 -0.31779 2020 7 23 59053 0.2231 0.4021 -0.31754 2020 7 24 59054 0.2240 0.4007 -0.31753 2020 7 25 59055 0.2249 0.3993 -0.31773 2020 7 26 59056 0.2258 0.3978 -0.31808 2020 7 27 59057 0.2266 0.3964 -0.31843 2020 7 28 59058 0.2275 0.3949 -0.31864 2020 7 29 59059 0.2283 0.3935 -0.31862 2020 7 30 59060 0.2290 0.3920 -0.31837 2020 7 31 59061 0.2298 0.3905 -0.31792 2020 8 1 59062 0.2305 0.3890 -0.31725 2020 8 2 59063 0.2312 0.3875 -0.31648 2020 8 3 59064 0.2318 0.3860 -0.31577 2020 8 4 59065 0.2325 0.3844 -0.31526 2020 8 5 59066 0.2331 0.3829 -0.31494 2020 8 6 59067 0.2336 0.3814 -0.31479 2020 8 7 59068 0.2342 0.3798 -0.31480 2020 8 8 59069 0.2347 0.3782 -0.31494 2020 8 9 59070 0.2352 0.3767 -0.31514 2020 8 10 59071 0.2356 0.3751 -0.31533 2020 8 11 59072 0.2360 0.3735 -0.31549 2020 8 12 59073 0.2364 0.3719 -0.31556 2020 8 13 59074 0.2368 0.3703 -0.31555 2020 8 14 59075 0.2371 0.3687 -0.31545 2020 8 15 59076 0.2374 0.3671 -0.31525 2020 8 16 59077 0.2377 0.3655 -0.31499 2020 8 17 59078 0.2379 0.3639 -0.31477 2020 8 18 59079 0.2381 0.3622 -0.31467 2020 8 19 59080 0.2383 0.3606 -0.31474 2020 8 20 59081 0.2384 0.3590 -0.31505 2020 8 21 59082 0.2386 0.3574 -0.31562 2020 8 22 59083 0.2386 0.3557 -0.31639 2020 8 23 59084 0.2387 0.3541 -0.31720 2020 8 24 59085 0.2387 0.3525 -0.31792 2020 8 25 59086 0.2387 0.3508 -0.31841 2020 8 26 59087 0.2386 0.3492 -0.31866 2020 8 27 59088 0.2386 0.3476 -0.31864 2020 8 28 59089 0.2384 0.3460 -0.31842 2020 8 29 59090 0.2383 0.3443 -0.31812 2020 8 30 59091 0.2381 0.3427 -0.31776 2020 8 31 59092 0.2379 0.3411 -0.31749 2020 9 1 59093 0.2377 0.3395 -0.31730 2020 9 2 59094 0.2374 0.3379 -0.31727 2020 9 3 59095 0.2371 0.3362 -0.31744 2020 9 4 59096 0.2368 0.3346 -0.31777 2020 9 5 59097 0.2364 0.3330 -0.31821 2020 9 6 59098 0.2360 0.3315 -0.31865 2020 9 7 59099 0.2356 0.3299 -0.31907 2020 9 8 59100 0.2351 0.3283 -0.31946 2020 9 9 59101 0.2346 0.3267 -0.31977 2020 9 10 59102 0.2341 0.3251 -0.31998 2020 9 11 59103 0.2336 0.3236 -0.32008 2020 9 12 59104 0.2330 0.3220 -0.32013 2020 9 13 59105 0.2324 0.3205 -0.32018 2020 9 14 59106 0.2317 0.3190 -0.32029 2020 9 15 59107 0.2310 0.3175 -0.32055 2020 9 16 59108 0.2303 0.3159 -0.32106 2020 9 17 59109 0.2296 0.3144 -0.32181 2020 9 18 59110 0.2288 0.3130 -0.32279 2020 9 19 59111 0.2280 0.3115 -0.32390 2020 9 20 59112 0.2272 0.3100 -0.32497 2020 9 21 59113 0.2264 0.3086 -0.32587 2020 9 22 59114 0.2255 0.3071 -0.32657 2020 9 23 59115 0.2246 0.3057 -0.32710 2020 9 24 59116 0.2236 0.3043 -0.32745 2020 9 25 59117 0.2227 0.3029 -0.32771 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) 58733 -117.81 0.41 -11.14 0.08 58734 -117.83 0.31 -11.25 0.09 58735 -117.90 0.31 -11.20 0.09 58736 -117.76 0.03 -11.11 0.10 58737 -117.41 0.03 -11.03 0.11 58738 -117.02 0.03 -10.88 0.11 58739 -116.75 0.03 -10.61 0.11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58733 -0.110 0.164 0.085 0.078 58734 -0.079 0.124 0.084 0.091 58735 -0.042 0.124 0.080 0.091 58736 -0.001 0.011 0.076 0.104 58737 0.040 0.013 0.071 0.105 58738 0.079 0.013 0.068 0.105 58739 0.113 0.013 0.065 0.105 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).