********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 19 September 2019 Vol. XXXII No. 038 ______________________________________________________________________ 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 13 58739 0.20941 .00009 0.33253 .00009 -0.153366 0.000019 19 9 14 58740 0.20882 .00009 0.33084 .00009 -0.153295 0.000013 19 9 15 58741 0.20839 .00009 0.32952 .00009 -0.153323 0.000013 19 9 16 58742 0.20790 .00009 0.32828 .00009 -0.153330 0.000010 19 9 17 58743 0.20737 .00009 0.32688 .00009 -0.153323 0.000010 19 9 18 58744 0.20678 .00009 0.32546 .00009 -0.153313 0.000010 19 9 19 58745 0.20602 .00009 0.32410 .00009 -0.153238 0.000055 _______________________________________________________________________ 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 = 0.1126 + 0.1077 cos A - 0.0133 sin A - 0.0168 cos C - 0.0122 sin C y = 0.3466 - 0.0136 cos A - 0.0964 sin A - 0.0122 cos C + 0.0168 sin C UT1-UTC = -0.1688 - 0.00053 (MJD - 58753) - (UT2-UT1) where A = 2*pi*(MJD-58745)/365.25 and C = 2*pi*(MJD-58745)/435. TAI-UTC(MJD 58746) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58745)**0.80 S t = 0.00025 (MJD-58745)**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 20 58746 0.2052 0.3227 -0.15305 2019 9 21 58747 0.2044 0.3213 -0.15274 2019 9 22 58748 0.2036 0.3199 -0.15235 2019 9 23 58749 0.2029 0.3185 -0.15194 2019 9 24 58750 0.2022 0.3172 -0.15160 2019 9 25 58751 0.2015 0.3160 -0.15140 2019 9 26 58752 0.2008 0.3148 -0.15143 2019 9 27 58753 0.2001 0.3136 -0.15174 2019 9 28 58754 0.1992 0.3125 -0.15229 2019 9 29 58755 0.1983 0.3114 -0.15298 2019 9 30 58756 0.1975 0.3103 -0.15367 2019 10 1 58757 0.1966 0.3091 -0.15424 2019 10 2 58758 0.1957 0.3080 -0.15464 2019 10 3 58759 0.1949 0.3069 -0.15482 2019 10 4 58760 0.1940 0.3059 -0.15483 2019 10 5 58761 0.1930 0.3048 -0.15473 2019 10 6 58762 0.1921 0.3038 -0.15458 2019 10 7 58763 0.1911 0.3029 -0.15447 2019 10 8 58764 0.1900 0.3019 -0.15446 2019 10 9 58765 0.1890 0.3009 -0.15457 2019 10 10 58766 0.1879 0.3000 -0.15483 2019 10 11 58767 0.1869 0.2991 -0.15522 2019 10 12 58768 0.1858 0.2981 -0.15573 2019 10 13 58769 0.1847 0.2972 -0.15634 2019 10 14 58770 0.1835 0.2964 -0.15700 2019 10 15 58771 0.1824 0.2955 -0.15767 2019 10 16 58772 0.1812 0.2947 -0.15829 2019 10 17 58773 0.1800 0.2939 -0.15882 2019 10 18 58774 0.1788 0.2931 -0.15925 2019 10 19 58775 0.1775 0.2923 -0.15959 2019 10 20 58776 0.1763 0.2916 -0.15987 2019 10 21 58777 0.1750 0.2908 -0.16017 2019 10 22 58778 0.1737 0.2901 -0.16056 2019 10 23 58779 0.1724 0.2894 -0.16112 2019 10 24 58780 0.1711 0.2887 -0.16193 2019 10 25 58781 0.1698 0.2881 -0.16299 2019 10 26 58782 0.1684 0.2874 -0.16426 2019 10 27 58783 0.1671 0.2868 -0.16562 2019 10 28 58784 0.1657 0.2862 -0.16694 2019 10 29 58785 0.1643 0.2856 -0.16811 2019 10 30 58786 0.1629 0.2851 -0.16906 2019 10 31 58787 0.1615 0.2845 -0.16976 2019 11 1 58788 0.1600 0.2840 -0.17027 2019 11 2 58789 0.1586 0.2835 -0.17066 2019 11 3 58790 0.1571 0.2831 -0.17099 2019 11 4 58791 0.1557 0.2826 -0.17134 2019 11 5 58792 0.1542 0.2822 -0.17175 2019 11 6 58793 0.1527 0.2818 -0.17226 2019 11 7 58794 0.1512 0.2814 -0.17289 2019 11 8 58795 0.1497 0.2811 -0.17362 2019 11 9 58796 0.1482 0.2807 -0.17443 2019 11 10 58797 0.1467 0.2804 -0.17530 2019 11 11 58798 0.1451 0.2801 -0.17617 2019 11 12 58799 0.1436 0.2799 -0.17700 2019 11 13 58800 0.1420 0.2796 -0.17774 2019 11 14 58801 0.1405 0.2794 -0.17837 2019 11 15 58802 0.1389 0.2792 -0.17889 2019 11 16 58803 0.1373 0.2791 -0.17933 2019 11 17 58804 0.1358 0.2789 -0.17975 2019 11 18 58805 0.1342 0.2788 -0.18021 2019 11 19 58806 0.1326 0.2787 -0.18081 2019 11 20 58807 0.1310 0.2787 -0.18159 2019 11 21 58808 0.1295 0.2786 -0.18259 2019 11 22 58809 0.1279 0.2786 -0.18379 2019 11 23 58810 0.1263 0.2786 -0.18511 2019 11 24 58811 0.1247 0.2787 -0.18644 2019 11 25 58812 0.1231 0.2787 -0.18768 2019 11 26 58813 0.1215 0.2788 -0.18874 2019 11 27 58814 0.1199 0.2789 -0.18956 2019 11 28 58815 0.1183 0.2790 -0.19018 2019 11 29 58816 0.1167 0.2792 -0.19064 2019 11 30 58817 0.1151 0.2794 -0.19101 2019 12 1 58818 0.1135 0.2796 -0.19138 2019 12 2 58819 0.1119 0.2798 -0.19180 2019 12 3 58820 0.1103 0.2800 -0.19230 2019 12 4 58821 0.1087 0.2803 -0.19290 2019 12 5 58822 0.1072 0.2806 -0.19361 2019 12 6 58823 0.1056 0.2809 -0.19440 2019 12 7 58824 0.1040 0.2813 -0.19525 2019 12 8 58825 0.1024 0.2817 -0.19611 2019 12 9 58826 0.1009 0.2821 -0.19693 2019 12 10 58827 0.0993 0.2825 -0.19768 2019 12 11 58828 0.0978 0.2829 -0.19831 2019 12 12 58829 0.0962 0.2834 -0.19881 2019 12 13 58830 0.0947 0.2839 -0.19921 2019 12 14 58831 0.0932 0.2844 -0.19954 2019 12 15 58832 0.0917 0.2850 -0.19988 2019 12 16 58833 0.0901 0.2855 -0.20032 2019 12 17 58834 0.0886 0.2861 -0.20092 2019 12 18 58835 0.0872 0.2867 -0.20172 2019 12 19 58836 0.0857 0.2874 -0.20268 2019 12 20 58837 0.0842 0.2880 -0.20376 2019 12 21 58838 0.0828 0.2887 -0.20487 2019 12 22 58839 0.0813 0.2894 -0.20591 2019 12 23 58840 0.0799 0.2901 -0.20679 2019 12 24 58841 0.0785 0.2909 -0.20747 2019 12 25 58842 0.0770 0.2916 -0.20794 2019 12 26 58843 0.0757 0.2924 -0.20825 2019 12 27 58844 0.0743 0.2932 -0.20846 2019 12 28 58845 0.0729 0.2941 -0.20864 2019 12 29 58846 0.0716 0.2949 -0.20885 2019 12 30 58847 0.0702 0.2958 -0.20913 2019 12 31 58848 0.0689 0.2967 -0.20952 2020 1 1 58849 0.0676 0.2976 -0.21001 2020 1 2 58850 0.0663 0.2985 -0.21060 2020 1 3 58851 0.0651 0.2995 -0.21125 2020 1 4 58852 0.0638 0.3004 -0.21192 2020 1 5 58853 0.0626 0.3014 -0.21258 2020 1 6 58854 0.0614 0.3024 -0.21312 2020 1 7 58855 0.0602 0.3035 -0.21357 2020 1 8 58856 0.0590 0.3045 -0.21391 2020 1 9 58857 0.0578 0.3056 -0.21415 2020 1 10 58858 0.0567 0.3067 -0.21432 2020 1 11 58859 0.0556 0.3078 -0.21450 2020 1 12 58860 0.0545 0.3089 -0.21477 2020 1 13 58861 0.0534 0.3100 -0.21522 2020 1 14 58862 0.0523 0.3112 -0.21588 2020 1 15 58863 0.0513 0.3123 -0.21674 2020 1 16 58864 0.0503 0.3135 -0.21775 2020 1 17 58865 0.0493 0.3147 -0.21879 2020 1 18 58866 0.0484 0.3159 -0.21976 2020 1 19 58867 0.0474 0.3172 -0.22059 2020 1 20 58868 0.0465 0.3184 -0.22124 2020 1 21 58869 0.0456 0.3197 -0.22168 2020 1 22 58870 0.0447 0.3209 -0.22197 2020 1 23 58871 0.0439 0.3222 -0.22215 2020 1 24 58872 0.0431 0.3235 -0.22230 2020 1 25 58873 0.0423 0.3248 -0.22249 2020 1 26 58874 0.0415 0.3262 -0.22275 2020 1 27 58875 0.0407 0.3275 -0.22312 2020 1 28 58876 0.0400 0.3288 -0.22361 2020 1 29 58877 0.0393 0.3302 -0.22421 2020 1 30 58878 0.0386 0.3316 -0.22490 2020 1 31 58879 0.0380 0.3329 -0.22563 2020 2 1 58880 0.0374 0.3343 -0.22637 2020 2 2 58881 0.0368 0.3357 -0.22707 2020 2 3 58882 0.0362 0.3371 -0.22770 2020 2 4 58883 0.0357 0.3385 -0.22825 2020 2 5 58884 0.0352 0.3400 -0.22870 2020 2 6 58885 0.0347 0.3414 -0.22908 2020 2 7 58886 0.0342 0.3428 -0.22945 2020 2 8 58887 0.0338 0.3443 -0.22989 2020 2 9 58888 0.0334 0.3457 -0.23051 2020 2 10 58889 0.0330 0.3472 -0.23137 2020 2 11 58890 0.0327 0.3486 -0.23248 2020 2 12 58891 0.0324 0.3501 -0.23378 2020 2 13 58892 0.0321 0.3516 -0.23517 2020 2 14 58893 0.0318 0.3531 -0.23651 2020 2 15 58894 0.0316 0.3545 -0.23771 2020 2 16 58895 0.0314 0.3560 -0.23870 2020 2 17 58896 0.0313 0.3575 -0.23948 2020 2 18 58897 0.0311 0.3590 -0.24009 2020 2 19 58898 0.0310 0.3605 -0.24058 2020 2 20 58899 0.0309 0.3620 -0.24102 2020 2 21 58900 0.0309 0.3635 -0.24148 2020 2 22 58901 0.0308 0.3650 -0.24202 2020 2 23 58902 0.0308 0.3665 -0.24267 2020 2 24 58903 0.0309 0.3680 -0.24344 2020 2 25 58904 0.0309 0.3695 -0.24433 2020 2 26 58905 0.0310 0.3710 -0.24531 2020 2 27 58906 0.0312 0.3725 -0.24635 2020 2 28 58907 0.0313 0.3740 -0.24741 2020 2 29 58908 0.0315 0.3755 -0.24843 2020 3 1 58909 0.0317 0.3770 -0.24938 2020 3 2 58910 0.0320 0.3784 -0.25024 2020 3 3 58911 0.0322 0.3799 -0.25101 2020 3 4 58912 0.0325 0.3814 -0.25170 2020 3 5 58913 0.0329 0.3829 -0.25234 2020 3 6 58914 0.0332 0.3843 -0.25303 2020 3 7 58915 0.0336 0.3858 -0.25385 2020 3 8 58916 0.0340 0.3873 -0.25489 2020 3 9 58917 0.0345 0.3887 -0.25622 2020 3 10 58918 0.0350 0.3901 -0.25780 2020 3 11 58919 0.0355 0.3916 -0.25954 2020 3 12 58920 0.0360 0.3930 -0.26130 2020 3 13 58921 0.0366 0.3944 -0.26294 2020 3 14 58922 0.0372 0.3958 -0.26436 2020 3 15 58923 0.0378 0.3973 -0.26553 2020 3 16 58924 0.0384 0.3986 -0.26648 2020 3 17 58925 0.0391 0.4000 -0.26726 2020 3 18 58926 0.0398 0.4014 -0.26796 2020 3 19 58927 0.0405 0.4028 -0.26864 2020 3 20 58928 0.0413 0.4041 -0.26937 2020 3 21 58929 0.0421 0.4055 -0.27019 2020 3 22 58930 0.0429 0.4068 -0.27111 2020 3 23 58931 0.0437 0.4081 -0.27213 2020 3 24 58932 0.0446 0.4094 -0.27323 2020 3 25 58933 0.0455 0.4107 -0.27436 2020 3 26 58934 0.0464 0.4120 -0.27550 2020 3 27 58935 0.0473 0.4132 -0.27658 2020 3 28 58936 0.0483 0.4145 -0.27757 2020 3 29 58937 0.0493 0.4157 -0.27844 2020 3 30 58938 0.0503 0.4169 -0.27920 2020 3 31 58939 0.0514 0.4181 -0.27985 2020 4 1 58940 0.0524 0.4193 -0.28044 2020 4 2 58941 0.0535 0.4205 -0.28104 2020 4 3 58942 0.0547 0.4217 -0.28174 2020 4 4 58943 0.0558 0.4228 -0.28264 2020 4 5 58944 0.0570 0.4239 -0.28381 2020 4 6 58945 0.0582 0.4250 -0.28525 2020 4 7 58946 0.0594 0.4261 -0.28693 2020 4 8 58947 0.0606 0.4272 -0.28870 2020 4 9 58948 0.0619 0.4282 -0.29042 2020 4 10 58949 0.0631 0.4293 -0.29193 2020 4 11 58950 0.0644 0.4303 -0.29318 2020 4 12 58951 0.0658 0.4313 -0.29414 2020 4 13 58952 0.0671 0.4322 -0.29487 2020 4 14 58953 0.0685 0.4332 -0.29546 2020 4 15 58954 0.0698 0.4341 -0.29599 2020 4 16 58955 0.0712 0.4350 -0.29654 2020 4 17 58956 0.0727 0.4359 -0.29714 2020 4 18 58957 0.0741 0.4368 -0.29784 2020 4 19 58958 0.0756 0.4376 -0.29864 2020 4 20 58959 0.0770 0.4384 -0.29952 2020 4 21 58960 0.0785 0.4392 -0.30047 2020 4 22 58961 0.0800 0.4400 -0.30145 2020 4 23 58962 0.0816 0.4408 -0.30240 2020 4 24 58963 0.0831 0.4415 -0.30327 2020 4 25 58964 0.0847 0.4422 -0.30403 2020 4 26 58965 0.0862 0.4429 -0.30467 2020 4 27 58966 0.0878 0.4435 -0.30519 2020 4 28 58967 0.0894 0.4442 -0.30564 2020 4 29 58968 0.0911 0.4448 -0.30607 2020 4 30 58969 0.0927 0.4454 -0.30658 2020 5 1 58970 0.0943 0.4459 -0.30722 2020 5 2 58971 0.0960 0.4465 -0.30808 2020 5 3 58972 0.0976 0.4470 -0.30924 2020 5 4 58973 0.0993 0.4475 -0.31068 2020 5 5 58974 0.1010 0.4479 -0.31232 2020 5 6 58975 0.1027 0.4484 -0.31400 2020 5 7 58976 0.1044 0.4488 -0.31562 2020 5 8 58977 0.1062 0.4492 -0.31704 2020 5 9 58978 0.1079 0.4495 -0.31818 2020 5 10 58979 0.1096 0.4499 -0.31908 2020 5 11 58980 0.1114 0.4502 -0.31978 2020 5 12 58981 0.1131 0.4505 -0.32033 2020 5 13 58982 0.1149 0.4507 -0.32089 2020 5 14 58983 0.1167 0.4509 -0.32148 2020 5 15 58984 0.1184 0.4511 -0.32215 2020 5 16 58985 0.1202 0.4513 -0.32292 2020 5 17 58986 0.1220 0.4515 -0.32379 2020 5 18 58987 0.1238 0.4516 -0.32472 2020 5 19 58988 0.1256 0.4517 -0.32567 2020 5 20 58989 0.1274 0.4517 -0.32651 2020 5 21 58990 0.1292 0.4518 -0.32725 2020 5 22 58991 0.1310 0.4518 -0.32790 2020 5 23 58992 0.1328 0.4518 -0.32840 2020 5 24 58993 0.1346 0.4517 -0.32882 2020 5 25 58994 0.1364 0.4517 -0.32915 2020 5 26 58995 0.1382 0.4516 -0.32941 2020 5 27 58996 0.1400 0.4514 -0.32972 2020 5 28 58997 0.1418 0.4513 -0.33009 2020 5 29 58998 0.1436 0.4511 -0.33057 2020 5 30 58999 0.1454 0.4509 -0.33126 2020 5 31 59000 0.1472 0.4507 -0.33213 2020 6 1 59001 0.1490 0.4504 -0.33315 2020 6 2 59002 0.1508 0.4501 -0.33426 2020 6 3 59003 0.1526 0.4498 -0.33533 2020 6 4 59004 0.1544 0.4494 -0.33620 2020 6 5 59005 0.1562 0.4491 -0.33680 2020 6 6 59006 0.1579 0.4487 -0.33710 2020 6 7 59007 0.1597 0.4483 -0.33716 2020 6 8 59008 0.1615 0.4478 -0.33707 2020 6 9 59009 0.1632 0.4473 -0.33690 2020 6 10 59010 0.1650 0.4468 -0.33671 2020 6 11 59011 0.1667 0.4463 -0.33660 2020 6 12 59012 0.1684 0.4457 -0.33659 2020 6 13 59013 0.1702 0.4452 -0.33664 2020 6 14 59014 0.1719 0.4445 -0.33682 2020 6 15 59015 0.1736 0.4439 -0.33704 2020 6 16 59016 0.1753 0.4433 -0.33728 2020 6 17 59017 0.1770 0.4426 -0.33749 2020 6 18 59018 0.1786 0.4419 -0.33765 2020 6 19 59019 0.1803 0.4411 -0.33768 2020 6 20 59020 0.1819 0.4404 -0.33752 2020 6 21 59021 0.1835 0.4396 -0.33729 2020 6 22 59022 0.1852 0.4388 -0.33699 2020 6 23 59023 0.1868 0.4379 -0.33660 2020 6 24 59024 0.1883 0.4371 -0.33621 2020 6 25 59025 0.1899 0.4362 -0.33595 2020 6 26 59026 0.1915 0.4353 -0.33589 2020 6 27 59027 0.1930 0.4344 -0.33596 2020 6 28 59028 0.1945 0.4334 -0.33618 2020 6 29 59029 0.1960 0.4324 -0.33647 2020 6 30 59030 0.1975 0.4314 -0.33676 2020 7 1 59031 0.1990 0.4304 -0.33690 2020 7 2 59032 0.2004 0.4294 -0.33681 2020 7 3 59033 0.2019 0.4283 -0.33649 2020 7 4 59034 0.2033 0.4272 -0.33601 2020 7 5 59035 0.2047 0.4261 -0.33546 2020 7 6 59036 0.2061 0.4250 -0.33494 2020 7 7 59037 0.2074 0.4238 -0.33445 2020 7 8 59038 0.2087 0.4227 -0.33400 2020 7 9 59039 0.2100 0.4215 -0.33363 2020 7 10 59040 0.2113 0.4203 -0.33337 2020 7 11 59041 0.2126 0.4190 -0.33321 2020 7 12 59042 0.2138 0.4178 -0.33314 2020 7 13 59043 0.2151 0.4165 -0.33309 2020 7 14 59044 0.2163 0.4152 -0.33297 2020 7 15 59045 0.2174 0.4139 -0.33272 2020 7 16 59046 0.2186 0.4126 -0.33236 2020 7 17 59047 0.2197 0.4113 -0.33185 2020 7 18 59048 0.2208 0.4099 -0.33115 2020 7 19 59049 0.2219 0.4086 -0.33032 2020 7 20 59050 0.2229 0.4072 -0.32951 2020 7 21 59051 0.2239 0.4058 -0.32887 2020 7 22 59052 0.2249 0.4044 -0.32844 2020 7 23 59053 0.2259 0.4029 -0.32829 2020 7 24 59054 0.2268 0.4015 -0.32841 2020 7 25 59055 0.2277 0.4000 -0.32876 2020 7 26 59056 0.2286 0.3985 -0.32926 2020 7 27 59057 0.2295 0.3971 -0.32975 2020 7 28 59058 0.2303 0.3956 -0.33016 2020 7 29 59059 0.2311 0.3940 -0.33038 2020 7 30 59060 0.2319 0.3925 -0.33042 2020 7 31 59061 0.2326 0.3910 -0.33027 2020 8 1 59062 0.2333 0.3894 -0.32996 2020 8 2 59063 0.2340 0.3879 -0.32958 2020 8 3 59064 0.2347 0.3863 -0.32921 2020 8 4 59065 0.2353 0.3847 -0.32890 2020 8 5 59066 0.2359 0.3831 -0.32866 2020 8 6 59067 0.2365 0.3815 -0.32852 2020 8 7 59068 0.2370 0.3799 -0.32850 2020 8 8 59069 0.2375 0.3783 -0.32859 2020 8 9 59070 0.2380 0.3767 -0.32872 2020 8 10 59071 0.2384 0.3751 -0.32884 2020 8 11 59072 0.2388 0.3734 -0.32886 2020 8 12 59073 0.2392 0.3718 -0.32877 2020 8 13 59074 0.2396 0.3702 -0.32852 2020 8 14 59075 0.2399 0.3685 -0.32812 2020 8 15 59076 0.2402 0.3669 -0.32761 2020 8 16 59077 0.2404 0.3652 -0.32700 2020 8 17 59078 0.2406 0.3635 -0.32643 2020 8 18 59079 0.2408 0.3619 -0.32598 2020 8 19 59080 0.2410 0.3602 -0.32576 2020 8 20 59081 0.2411 0.3585 -0.32587 2020 8 21 59082 0.2412 0.3569 -0.32631 2020 8 22 59083 0.2412 0.3552 -0.32696 2020 8 23 59084 0.2413 0.3535 -0.32765 2020 8 24 59085 0.2413 0.3518 -0.32826 2020 8 25 59086 0.2412 0.3502 -0.32874 2020 8 26 59087 0.2412 0.3485 -0.32902 2020 8 27 59088 0.2411 0.3468 -0.32909 2020 8 28 59089 0.2409 0.3451 -0.32900 2020 8 29 59090 0.2408 0.3435 -0.32882 2020 8 30 59091 0.2406 0.3418 -0.32865 2020 8 31 59092 0.2403 0.3402 -0.32851 2020 9 1 59093 0.2401 0.3385 -0.32845 2020 9 2 59094 0.2398 0.3368 -0.32850 2020 9 3 59095 0.2394 0.3352 -0.32863 2020 9 4 59096 0.2391 0.3335 -0.32885 2020 9 5 59097 0.2387 0.3319 -0.32914 2020 9 6 59098 0.2382 0.3303 -0.32943 2020 9 7 59099 0.2378 0.3287 -0.32969 2020 9 8 59100 0.2373 0.3270 -0.32992 2020 9 9 59101 0.2368 0.3254 -0.33011 2020 9 10 59102 0.2362 0.3238 -0.33021 2020 9 11 59103 0.2356 0.3222 -0.33024 2020 9 12 59104 0.2350 0.3206 -0.33024 2020 9 13 59105 0.2343 0.3191 -0.33028 2020 9 14 59106 0.2337 0.3175 -0.33044 2020 9 15 59107 0.2330 0.3159 -0.33084 2020 9 16 59108 0.2322 0.3144 -0.33150 2020 9 17 59109 0.2314 0.3129 -0.33247 2020 9 18 59110 0.2306 0.3114 -0.33371 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) 58726 -117.02 0.29 -10.57 0.05 58727 -117.27 0.29 -10.53 0.05 58728 -117.68 0.29 -10.62 0.05 58729 -118.07 0.33 -10.62 0.07 58730 -118.28 0.41 -10.55 0.08 58731 -118.23 0.41 -10.59 0.08 58732 -118.01 0.41 -10.85 0.08 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58726 -0.090 0.114 0.039 0.047 58727 -0.096 0.116 0.044 0.051 58728 -0.103 0.116 0.051 0.051 58729 -0.110 0.132 0.059 0.066 58730 -0.116 0.162 0.067 0.076 58731 -0.123 0.162 0.076 0.076 58732 -0.129 0.162 0.086 0.076 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).