********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 17 October 2019 Vol. XXXII No. 042 ______________________________________________________________________ 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 *********************************************************************** * * * Notice of Pending Publication Web and FTP Shutdown: * * The US Naval Observatory's Rapid Service Prediction Center web and * * FTP sites (at maia.usno.navy.mil and toshi.nofs.navy.mil) must * * undergo modernization and will be offline starting about 20:00 UTC,* * Thursday, 24 October 2019. The expected completion of work and * * return of service is estimated as 30 April 2020. Please directly * * contact USNO PAO Geoff Chester at email address * * geoff.chester@navy.mil or phone number 1-202-762-1438. * * * * Until COB October 24, 2019: * * 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 * * * * Even after October 24, 2019, updated EOPs may be available at * * NASA's Archive of Space Geodesy Data anonymous FTP server at: * * ftp://cddis.gsfc.nasa.gov/pub/products/iers * * Daily EOP data may be uploaded here at 18:00 UTC, and * * Bulletin A EOP data should be available by 20:00 UTC. * * Users should please verify results obtained from this site as * * integrity of the files are not as assured as would be via HTTPS. * * * * Questions and enquiries about EOPs 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 11 58767 0.18865 .00009 0.29979 .00009 -0.151353 0.000040 19 10 12 58768 0.18768 .00009 0.29938 .00009 -0.151464 0.000042 19 10 13 58769 0.18621 .00009 0.29909 .00009 -0.151673 0.000040 19 10 14 58770 0.18443 .00009 0.29850 .00009 -0.151943 0.000015 19 10 15 58771 0.18278 .00009 0.29777 .00009 -0.152251 0.000011 19 10 16 58772 0.18138 .00009 0.29715 .00009 -0.152572 0.000008 19 10 17 58773 0.17997 .00009 0.29658 .00009 -0.152868 0.000006 _______________________________________________________________________ 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 = 0.1169 + 0.0893 cos A - 0.0731 sin A - 0.0282 cos C + 0.0043 sin C y = 0.3584 - 0.0672 cos A - 0.0820 sin A + 0.0043 cos C + 0.0282 sin C UT1-UTC = -0.1555 - 0.00048 (MJD - 58781) - (UT2-UT1) where A = 2*pi*(MJD-58773)/365.25 and C = 2*pi*(MJD-58773)/435. TAI-UTC(MJD 58774) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58773)**0.80 S t = 0.00025 (MJD-58773)**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 18 58774 0.1786 0.2959 -0.15311 2019 10 19 58775 0.1772 0.2952 -0.15324 2019 10 20 58776 0.1759 0.2946 -0.15331 2019 10 21 58777 0.1745 0.2940 -0.15335 2019 10 22 58778 0.1731 0.2934 -0.15345 2019 10 23 58779 0.1717 0.2927 -0.15371 2019 10 24 58780 0.1704 0.2920 -0.15420 2019 10 25 58781 0.1691 0.2913 -0.15494 2019 10 26 58782 0.1677 0.2907 -0.15588 2019 10 27 58783 0.1664 0.2901 -0.15690 2019 10 28 58784 0.1651 0.2895 -0.15790 2019 10 29 58785 0.1638 0.2889 -0.15876 2019 10 30 58786 0.1624 0.2884 -0.15938 2019 10 31 58787 0.1611 0.2879 -0.15972 2019 11 1 58788 0.1597 0.2874 -0.15982 2019 11 2 58789 0.1583 0.2869 -0.15974 2019 11 3 58790 0.1569 0.2864 -0.15958 2019 11 4 58791 0.1555 0.2859 -0.15941 2019 11 5 58792 0.1541 0.2855 -0.15928 2019 11 6 58793 0.1528 0.2850 -0.15923 2019 11 7 58794 0.1514 0.2847 -0.15930 2019 11 8 58795 0.1500 0.2843 -0.15949 2019 11 9 58796 0.1486 0.2840 -0.15977 2019 11 10 58797 0.1471 0.2836 -0.16010 2019 11 11 58798 0.1457 0.2833 -0.16042 2019 11 12 58799 0.1443 0.2831 -0.16070 2019 11 13 58800 0.1428 0.2828 -0.16088 2019 11 14 58801 0.1414 0.2826 -0.16096 2019 11 15 58802 0.1399 0.2824 -0.16093 2019 11 16 58803 0.1385 0.2822 -0.16083 2019 11 17 58804 0.1370 0.2821 -0.16071 2019 11 18 58805 0.1356 0.2820 -0.16067 2019 11 19 58806 0.1341 0.2819 -0.16077 2019 11 20 58807 0.1326 0.2818 -0.16109 2019 11 21 58808 0.1311 0.2818 -0.16164 2019 11 22 58809 0.1296 0.2817 -0.16240 2019 11 23 58810 0.1282 0.2817 -0.16330 2019 11 24 58811 0.1267 0.2817 -0.16422 2019 11 25 58812 0.1252 0.2818 -0.16505 2019 11 26 58813 0.1237 0.2819 -0.16571 2019 11 27 58814 0.1222 0.2820 -0.16616 2019 11 28 58815 0.1207 0.2821 -0.16639 2019 11 29 58816 0.1192 0.2822 -0.16648 2019 11 30 58817 0.1177 0.2824 -0.16649 2019 12 1 58818 0.1162 0.2826 -0.16650 2019 12 2 58819 0.1147 0.2828 -0.16656 2019 12 3 58820 0.1132 0.2830 -0.16672 2019 12 4 58821 0.1117 0.2833 -0.16699 2019 12 5 58822 0.1103 0.2836 -0.16738 2019 12 6 58823 0.1088 0.2839 -0.16786 2019 12 7 58824 0.1073 0.2842 -0.16840 2019 12 8 58825 0.1058 0.2845 -0.16896 2019 12 9 58826 0.1044 0.2849 -0.16950 2019 12 10 58827 0.1029 0.2853 -0.16997 2019 12 11 58828 0.1014 0.2857 -0.17033 2019 12 12 58829 0.1000 0.2862 -0.17056 2019 12 13 58830 0.0985 0.2867 -0.17069 2019 12 14 58831 0.0971 0.2871 -0.17076 2019 12 15 58832 0.0957 0.2877 -0.17085 2019 12 16 58833 0.0942 0.2882 -0.17104 2019 12 17 58834 0.0928 0.2888 -0.17140 2019 12 18 58835 0.0914 0.2893 -0.17196 2019 12 19 58836 0.0900 0.2899 -0.17270 2019 12 20 58837 0.0886 0.2906 -0.17356 2019 12 21 58838 0.0873 0.2912 -0.17445 2019 12 22 58839 0.0859 0.2919 -0.17527 2019 12 23 58840 0.0845 0.2926 -0.17595 2019 12 24 58841 0.0832 0.2933 -0.17643 2019 12 25 58842 0.0819 0.2940 -0.17671 2019 12 26 58843 0.0805 0.2948 -0.17684 2019 12 27 58844 0.0792 0.2955 -0.17688 2019 12 28 58845 0.0779 0.2963 -0.17690 2019 12 29 58846 0.0767 0.2971 -0.17697 2019 12 30 58847 0.0754 0.2980 -0.17712 2019 12 31 58848 0.0742 0.2988 -0.17737 2020 1 1 58849 0.0729 0.2997 -0.17775 2020 1 2 58850 0.0717 0.3006 -0.17822 2020 1 3 58851 0.0705 0.3015 -0.17876 2020 1 4 58852 0.0693 0.3024 -0.17934 2020 1 5 58853 0.0681 0.3034 -0.17991 2020 1 6 58854 0.0670 0.3043 -0.18044 2020 1 7 58855 0.0659 0.3053 -0.18088 2020 1 8 58856 0.0647 0.3063 -0.18122 2020 1 9 58857 0.0636 0.3073 -0.18146 2020 1 10 58858 0.0625 0.3084 -0.18163 2020 1 11 58859 0.0615 0.3094 -0.18181 2020 1 12 58860 0.0604 0.3105 -0.18208 2020 1 13 58861 0.0594 0.3116 -0.18254 2020 1 14 58862 0.0584 0.3127 -0.18321 2020 1 15 58863 0.0574 0.3138 -0.18408 2020 1 16 58864 0.0565 0.3150 -0.18510 2020 1 17 58865 0.0555 0.3161 -0.18615 2020 1 18 58866 0.0546 0.3173 -0.18714 2020 1 19 58867 0.0537 0.3184 -0.18798 2020 1 20 58868 0.0528 0.3196 -0.18863 2020 1 21 58869 0.0520 0.3208 -0.18908 2020 1 22 58870 0.0511 0.3221 -0.18938 2020 1 23 58871 0.0503 0.3233 -0.18957 2020 1 24 58872 0.0495 0.3245 -0.18972 2020 1 25 58873 0.0488 0.3258 -0.18990 2020 1 26 58874 0.0480 0.3271 -0.19016 2020 1 27 58875 0.0473 0.3283 -0.19052 2020 1 28 58876 0.0466 0.3296 -0.19100 2020 1 29 58877 0.0459 0.3309 -0.19158 2020 1 30 58878 0.0453 0.3323 -0.19225 2020 1 31 58879 0.0447 0.3336 -0.19295 2020 2 1 58880 0.0441 0.3349 -0.19366 2020 2 2 58881 0.0435 0.3363 -0.19433 2020 2 3 58882 0.0430 0.3376 -0.19481 2020 2 4 58883 0.0425 0.3390 -0.19520 2020 2 5 58884 0.0420 0.3403 -0.19549 2020 2 6 58885 0.0415 0.3417 -0.19571 2020 2 7 58886 0.0411 0.3431 -0.19592 2020 2 8 58887 0.0406 0.3445 -0.19621 2020 2 9 58888 0.0403 0.3459 -0.19667 2020 2 10 58889 0.0399 0.3473 -0.19737 2020 2 11 58890 0.0396 0.3487 -0.19832 2020 2 12 58891 0.0393 0.3501 -0.19947 2020 2 13 58892 0.0390 0.3515 -0.20070 2020 2 14 58893 0.0387 0.3529 -0.20189 2020 2 15 58894 0.0385 0.3544 -0.20293 2020 2 16 58895 0.0383 0.3558 -0.20378 2020 2 17 58896 0.0381 0.3572 -0.20440 2020 2 18 58897 0.0380 0.3586 -0.20486 2020 2 19 58898 0.0379 0.3601 -0.20519 2020 2 20 58899 0.0378 0.3615 -0.20549 2020 2 21 58900 0.0377 0.3630 -0.20580 2020 2 22 58901 0.0377 0.3644 -0.20619 2020 2 23 58902 0.0377 0.3658 -0.20670 2020 2 24 58903 0.0377 0.3673 -0.20733 2020 2 25 58904 0.0378 0.3687 -0.20808 2020 2 26 58905 0.0379 0.3702 -0.20893 2020 2 27 58906 0.0380 0.3716 -0.20983 2020 2 28 58907 0.0381 0.3730 -0.21076 2020 2 29 58908 0.0383 0.3745 -0.21165 2020 3 1 58909 0.0385 0.3759 -0.21247 2020 3 2 58910 0.0387 0.3773 -0.21321 2020 3 3 58911 0.0389 0.3788 -0.21385 2020 3 4 58912 0.0392 0.3802 -0.21441 2020 3 5 58913 0.0395 0.3816 -0.21493 2020 3 6 58914 0.0398 0.3830 -0.21550 2020 3 7 58915 0.0402 0.3844 -0.21621 2020 3 8 58916 0.0406 0.3858 -0.21714 2020 3 9 58917 0.0410 0.3872 -0.21835 2020 3 10 58918 0.0415 0.3886 -0.21982 2020 3 11 58919 0.0419 0.3900 -0.22145 2020 3 12 58920 0.0424 0.3914 -0.22311 2020 3 13 58921 0.0430 0.3928 -0.22464 2020 3 14 58922 0.0435 0.3941 -0.22597 2020 3 15 58923 0.0441 0.3955 -0.22704 2020 3 16 58924 0.0447 0.3968 -0.22789 2020 3 17 58925 0.0453 0.3981 -0.22859 2020 3 18 58926 0.0460 0.3995 -0.22920 2020 3 19 58927 0.0467 0.4008 -0.22982 2020 3 20 58928 0.0474 0.4021 -0.23048 2020 3 21 58929 0.0481 0.4034 -0.23125 2020 3 22 58930 0.0489 0.4046 -0.23212 2020 3 23 58931 0.0497 0.4059 -0.23312 2020 3 24 58932 0.0505 0.4072 -0.23421 2020 3 25 58933 0.0514 0.4084 -0.23537 2020 3 26 58934 0.0522 0.4096 -0.23654 2020 3 27 58935 0.0531 0.4109 -0.23768 2020 3 28 58936 0.0540 0.4121 -0.23874 2020 3 29 58937 0.0550 0.4133 -0.23971 2020 3 30 58938 0.0560 0.4144 -0.24056 2020 3 31 58939 0.0569 0.4156 -0.24131 2020 4 1 58940 0.0580 0.4167 -0.24199 2020 4 2 58941 0.0590 0.4179 -0.24268 2020 4 3 58942 0.0601 0.4190 -0.24344 2020 4 4 58943 0.0611 0.4201 -0.24438 2020 4 5 58944 0.0622 0.4211 -0.24557 2020 4 6 58945 0.0634 0.4222 -0.24704 2020 4 7 58946 0.0645 0.4233 -0.24873 2020 4 8 58947 0.0657 0.4243 -0.25053 2020 4 9 58948 0.0669 0.4253 -0.25228 2020 4 10 58949 0.0681 0.4263 -0.25385 2020 4 11 58950 0.0693 0.4272 -0.25515 2020 4 12 58951 0.0706 0.4282 -0.25619 2020 4 13 58952 0.0719 0.4291 -0.25702 2020 4 14 58953 0.0732 0.4300 -0.25772 2020 4 15 58954 0.0745 0.4309 -0.25837 2020 4 16 58955 0.0758 0.4318 -0.25905 2020 4 17 58956 0.0772 0.4327 -0.25980 2020 4 18 58957 0.0785 0.4335 -0.26066 2020 4 19 58958 0.0799 0.4343 -0.26161 2020 4 20 58959 0.0813 0.4351 -0.26267 2020 4 21 58960 0.0827 0.4359 -0.26379 2020 4 22 58961 0.0842 0.4366 -0.26494 2020 4 23 58962 0.0856 0.4373 -0.26607 2020 4 24 58963 0.0871 0.4380 -0.26715 2020 4 25 58964 0.0886 0.4387 -0.26812 2020 4 26 58965 0.0901 0.4394 -0.26897 2020 4 27 58966 0.0916 0.4400 -0.26968 2020 4 28 58967 0.0931 0.4406 -0.27029 2020 4 29 58968 0.0947 0.4412 -0.27083 2020 4 30 58969 0.0962 0.4418 -0.27137 2020 5 1 58970 0.0978 0.4423 -0.27199 2020 5 2 58971 0.0994 0.4428 -0.27277 2020 5 3 58972 0.1010 0.4433 -0.27377 2020 5 4 58973 0.1026 0.4438 -0.27497 2020 5 5 58974 0.1042 0.4442 -0.27631 2020 5 6 58975 0.1058 0.4446 -0.27766 2020 5 7 58976 0.1075 0.4450 -0.27888 2020 5 8 58977 0.1091 0.4454 -0.27987 2020 5 9 58978 0.1108 0.4457 -0.28059 2020 5 10 58979 0.1124 0.4460 -0.28107 2020 5 11 58980 0.1141 0.4463 -0.28140 2020 5 12 58981 0.1158 0.4466 -0.28166 2020 5 13 58982 0.1174 0.4468 -0.28193 2020 5 14 58983 0.1191 0.4470 -0.28227 2020 5 15 58984 0.1208 0.4472 -0.28270 2020 5 16 58985 0.1225 0.4474 -0.28323 2020 5 17 58986 0.1242 0.4475 -0.28383 2020 5 18 58987 0.1260 0.4476 -0.28450 2020 5 19 58988 0.1277 0.4477 -0.28518 2020 5 20 58989 0.1294 0.4478 -0.28583 2020 5 21 58990 0.1311 0.4478 -0.28640 2020 5 22 58991 0.1328 0.4478 -0.28684 2020 5 23 58992 0.1346 0.4478 -0.28712 2020 5 24 58993 0.1363 0.4477 -0.28725 2020 5 25 58994 0.1380 0.4476 -0.28724 2020 5 26 58995 0.1398 0.4475 -0.28715 2020 5 27 58996 0.1415 0.4474 -0.28707 2020 5 28 58997 0.1432 0.4472 -0.28708 2020 5 29 58998 0.1450 0.4471 -0.28724 2020 5 30 58999 0.1467 0.4468 -0.28759 2020 5 31 59000 0.1484 0.4466 -0.28811 2020 6 1 59001 0.1501 0.4463 -0.28880 2020 6 2 59002 0.1519 0.4460 -0.28958 2020 6 3 59003 0.1536 0.4457 -0.29031 2020 6 4 59004 0.1553 0.4454 -0.29088 2020 6 5 59005 0.1570 0.4450 -0.29119 2020 6 6 59006 0.1587 0.4446 -0.29120 2020 6 7 59007 0.1604 0.4442 -0.29098 2020 6 8 59008 0.1621 0.4438 -0.29064 2020 6 9 59009 0.1638 0.4433 -0.29028 2020 6 10 59010 0.1655 0.4428 -0.28996 2020 6 11 59011 0.1671 0.4423 -0.28967 2020 6 12 59012 0.1688 0.4417 -0.28945 2020 6 13 59013 0.1704 0.4411 -0.28935 2020 6 14 59014 0.1721 0.4405 -0.28931 2020 6 15 59015 0.1737 0.4399 -0.28930 2020 6 16 59016 0.1753 0.4393 -0.28929 2020 6 17 59017 0.1770 0.4386 -0.28922 2020 6 18 59018 0.1786 0.4379 -0.28910 2020 6 19 59019 0.1801 0.4372 -0.28881 2020 6 20 59020 0.1817 0.4364 -0.28839 2020 6 21 59021 0.1833 0.4356 -0.28786 2020 6 22 59022 0.1848 0.4348 -0.28726 2020 6 23 59023 0.1864 0.4340 -0.28669 2020 6 24 59024 0.1879 0.4332 -0.28619 2020 6 25 59025 0.1894 0.4323 -0.28591 2020 6 26 59026 0.1909 0.4314 -0.28583 2020 6 27 59027 0.1924 0.4305 -0.28598 2020 6 28 59028 0.1939 0.4296 -0.28635 2020 6 29 59029 0.1953 0.4286 -0.28685 2020 6 30 59030 0.1967 0.4276 -0.28737 2020 7 1 59031 0.1982 0.4266 -0.28778 2020 7 2 59032 0.1996 0.4256 -0.28804 2020 7 3 59033 0.2009 0.4246 -0.28810 2020 7 4 59034 0.2023 0.4235 -0.28796 2020 7 5 59035 0.2036 0.4224 -0.28769 2020 7 6 59036 0.2050 0.4213 -0.28735 2020 7 7 59037 0.2063 0.4202 -0.28699 2020 7 8 59038 0.2076 0.4190 -0.28673 2020 7 9 59039 0.2088 0.4178 -0.28656 2020 7 10 59040 0.2101 0.4167 -0.28650 2020 7 11 59041 0.2113 0.4155 -0.28653 2020 7 12 59042 0.2125 0.4142 -0.28664 2020 7 13 59043 0.2137 0.4130 -0.28675 2020 7 14 59044 0.2148 0.4117 -0.28683 2020 7 15 59045 0.2159 0.4105 -0.28675 2020 7 16 59046 0.2170 0.4092 -0.28654 2020 7 17 59047 0.2181 0.4079 -0.28624 2020 7 18 59048 0.2192 0.4065 -0.28582 2020 7 19 59049 0.2202 0.4052 -0.28537 2020 7 20 59050 0.2212 0.4038 -0.28494 2020 7 21 59051 0.2222 0.4025 -0.28457 2020 7 22 59052 0.2232 0.4011 -0.28441 2020 7 23 59053 0.2241 0.3997 -0.28444 2020 7 24 59054 0.2250 0.3982 -0.28465 2020 7 25 59055 0.2259 0.3968 -0.28507 2020 7 26 59056 0.2268 0.3954 -0.28556 2020 7 27 59057 0.2276 0.3939 -0.28602 2020 7 28 59058 0.2284 0.3924 -0.28641 2020 7 29 59059 0.2292 0.3910 -0.28662 2020 7 30 59060 0.2299 0.3895 -0.28659 2020 7 31 59061 0.2307 0.3880 -0.28635 2020 8 1 59062 0.2314 0.3865 -0.28593 2020 8 2 59063 0.2320 0.3849 -0.28542 2020 8 3 59064 0.2327 0.3834 -0.28492 2020 8 4 59065 0.2333 0.3819 -0.28446 2020 8 5 59066 0.2338 0.3803 -0.28408 2020 8 6 59067 0.2344 0.3787 -0.28382 2020 8 7 59068 0.2349 0.3772 -0.28368 2020 8 8 59069 0.2354 0.3756 -0.28360 2020 8 9 59070 0.2359 0.3740 -0.28362 2020 8 10 59071 0.2363 0.3724 -0.28363 2020 8 11 59072 0.2367 0.3708 -0.28363 2020 8 12 59073 0.2371 0.3692 -0.28357 2020 8 13 59074 0.2374 0.3676 -0.28346 2020 8 14 59075 0.2377 0.3660 -0.28324 2020 8 15 59076 0.2380 0.3644 -0.28290 2020 8 16 59077 0.2383 0.3627 -0.28259 2020 8 17 59078 0.2385 0.3611 -0.28233 2020 8 18 59079 0.2387 0.3595 -0.28214 2020 8 19 59080 0.2388 0.3579 -0.28212 2020 8 20 59081 0.2390 0.3562 -0.28235 2020 8 21 59082 0.2390 0.3546 -0.28282 2020 8 22 59083 0.2391 0.3530 -0.28340 2020 8 23 59084 0.2391 0.3513 -0.28398 2020 8 24 59085 0.2391 0.3497 -0.28447 2020 8 25 59086 0.2391 0.3481 -0.28479 2020 8 26 59087 0.2391 0.3464 -0.28487 2020 8 27 59088 0.2390 0.3448 -0.28471 2020 8 28 59089 0.2388 0.3432 -0.28442 2020 8 29 59090 0.2387 0.3415 -0.28409 2020 8 30 59091 0.2385 0.3399 -0.28386 2020 8 31 59092 0.2383 0.3383 -0.28380 2020 9 1 59093 0.2380 0.3367 -0.28387 2020 9 2 59094 0.2377 0.3350 -0.28404 2020 9 3 59095 0.2374 0.3334 -0.28430 2020 9 4 59096 0.2371 0.3318 -0.28467 2020 9 5 59097 0.2367 0.3302 -0.28511 2020 9 6 59098 0.2363 0.3286 -0.28560 2020 9 7 59099 0.2359 0.3270 -0.28606 2020 9 8 59100 0.2354 0.3255 -0.28640 2020 9 9 59101 0.2349 0.3239 -0.28660 2020 9 10 59102 0.2344 0.3223 -0.28668 2020 9 11 59103 0.2338 0.3208 -0.28666 2020 9 12 59104 0.2332 0.3192 -0.28651 2020 9 13 59105 0.2326 0.3177 -0.28635 2020 9 14 59106 0.2320 0.3162 -0.28633 2020 9 15 59107 0.2313 0.3146 -0.28662 2020 9 16 59108 0.2306 0.3131 -0.28725 2020 9 17 59109 0.2298 0.3117 -0.28823 2020 9 18 59110 0.2291 0.3102 -0.28949 2020 9 19 59111 0.2283 0.3087 -0.29090 2020 9 20 59112 0.2275 0.3072 -0.29231 2020 9 21 59113 0.2266 0.3058 -0.29356 2020 9 22 59114 0.2257 0.3044 -0.29458 2020 9 23 59115 0.2248 0.3029 -0.29535 2020 9 24 59116 0.2239 0.3015 -0.29596 2020 9 25 59117 0.2229 0.3002 -0.29649 2020 9 26 59118 0.2219 0.2988 -0.29697 2020 9 27 59119 0.2209 0.2974 -0.29750 2020 9 28 59120 0.2198 0.2961 -0.29813 2020 9 29 59121 0.2187 0.2948 -0.29888 2020 9 30 59122 0.2176 0.2935 -0.29970 2020 10 1 59123 0.2165 0.2922 -0.30060 2020 10 2 59124 0.2154 0.2909 -0.30157 2020 10 3 59125 0.2142 0.2896 -0.30259 2020 10 4 59126 0.2130 0.2884 -0.30358 2020 10 5 59127 0.2117 0.2872 -0.30449 2020 10 6 59128 0.2105 0.2860 -0.30524 2020 10 7 59129 0.2092 0.2848 -0.30586 2020 10 8 59130 0.2079 0.2837 -0.30631 2020 10 9 59131 0.2066 0.2825 -0.30664 2020 10 10 59132 0.2052 0.2814 -0.30694 2020 10 11 59133 0.2038 0.2803 -0.30722 2020 10 12 59134 0.2024 0.2793 -0.30766 2020 10 13 59135 0.2010 0.2782 -0.30830 2020 10 14 59136 0.1996 0.2772 -0.30923 2020 10 15 59137 0.1981 0.2762 -0.31051 2020 10 16 59138 0.1966 0.2752 -0.31205 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) 58754 -116.00 0.26 -9.38 0.12 58755 -116.30 0.26 -9.45 0.12 58756 -116.58 0.26 -9.71 0.12 58757 -116.79 0.32 -9.85 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58754 0.105 0.102 0.105 0.123 58755 0.070 0.105 0.093 0.115 58756 0.021 0.105 0.081 0.115 58757 -0.035 0.129 0.068 0.071 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).