********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 May 2019 Vol. XXXII No. 019 ______________________________________________________________________ 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 = -0.1 seconds beginning 17 Jan 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 * * and from the backup EO server at: * * http://toshi.nofs.navy.mil ftp://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 5 3 58606 0.07571 .00009 0.41281 .00009 -0.150648 0.000016 19 5 4 58607 0.07677 .00009 0.41337 .00009 -0.151626 0.000015 19 5 5 58608 0.07755 .00009 0.41397 .00009 -0.152528 0.000016 19 5 6 58609 0.07823 .00009 0.41477 .00009 -0.153352 0.000018 19 5 7 58610 0.07905 .00009 0.41559 .00009 -0.154075 0.000020 19 5 8 58611 0.08020 .00009 0.41624 .00009 -0.154704 0.000019 19 5 9 58612 0.08162 .00009 0.41675 .00009 -0.155249 0.000018 IERS Final Values MJD x y UT1-UTC " " s 19 3 2 58544 0.0401 0.3457 -0.08972 19 3 3 58545 0.0417 0.3473 -0.09021 19 3 4 58546 0.0430 0.3490 -0.09073 19 3 5 58547 0.0439 0.3509 -0.09134 19 3 6 58548 0.0446 0.3526 -0.09203 19 3 7 58549 0.0455 0.3542 -0.09286 19 3 8 58550 0.0458 0.3559 -0.09382 19 3 9 58551 0.0455 0.3568 -0.09481 19 3 10 58552 0.0452 0.3578 -0.09586 19 3 11 58553 0.0454 0.3591 -0.09693 19 3 12 58554 0.0454 0.3606 -0.09796 19 3 13 58555 0.0449 0.3618 -0.09890 19 3 14 58556 0.0446 0.3632 -0.09971 19 3 15 58557 0.0447 0.3642 -0.10048 19 3 16 58558 0.0449 0.3656 -0.10127 19 3 17 58559 0.0451 0.3667 -0.10213 19 3 18 58560 0.0456 0.3677 -0.10314 19 3 19 58561 0.0458 0.3687 -0.10435 19 3 20 58562 0.0456 0.3697 -0.10575 19 3 21 58563 0.0454 0.3706 -0.10733 19 3 22 58564 0.0452 0.3718 -0.10900 19 3 23 58565 0.0451 0.3731 -0.11063 19 3 24 58566 0.0453 0.3744 -0.11211 19 3 25 58567 0.0459 0.3759 -0.11338 19 3 26 58568 0.0460 0.3773 -0.11444 19 3 27 58569 0.0459 0.3784 -0.11531 19 3 28 58570 0.0462 0.3792 -0.11609 19 3 29 58571 0.0465 0.3802 -0.11682 19 3 30 58572 0.0471 0.3812 -0.11754 19 3 31 58573 0.0480 0.3827 -0.11832 19 4 1 58574 0.0488 0.3840 -0.11918 _______________________________________________________________________ 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 = 0.1185 - 0.0228 cos A + 0.0853 sin A - 0.0197 cos C - 0.0197 sin C y = 0.3561 + 0.0771 cos A + 0.0174 sin A - 0.0197 cos C + 0.0197 sin C UT1-UTC = -0.1190 - 0.00064 (MJD - 58620) - (UT2-UT1) where A = 2*pi*(MJD-58612)/365.25 and C = 2*pi*(MJD-58612)/435. TAI-UTC(MJD 58613) = 37.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-58612)**0.80 S t = 0.00025 (MJD-58612)**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 5 10 58613 0.0831 0.4173 -0.15574 2019 5 11 58614 0.0846 0.4179 -0.15629 2019 5 12 58615 0.0860 0.4185 -0.15696 2019 5 13 58616 0.0874 0.4192 -0.15782 2019 5 14 58617 0.0887 0.4198 -0.15888 2019 5 15 58618 0.0901 0.4203 -0.16008 2019 5 16 58619 0.0914 0.4208 -0.16133 2019 5 17 58620 0.0928 0.4213 -0.16253 2019 5 18 58621 0.0942 0.4217 -0.16358 2019 5 19 58622 0.0956 0.4222 -0.16439 2019 5 20 58623 0.0971 0.4226 -0.16495 2019 5 21 58624 0.0985 0.4230 -0.16530 2019 5 22 58625 0.1000 0.4234 -0.16551 2019 5 23 58626 0.1014 0.4238 -0.16562 2019 5 24 58627 0.1028 0.4242 -0.16570 2019 5 25 58628 0.1043 0.4245 -0.16582 2019 5 26 58629 0.1058 0.4248 -0.16601 2019 5 27 58630 0.1073 0.4251 -0.16628 2019 5 28 58631 0.1087 0.4253 -0.16665 2019 5 29 58632 0.1102 0.4255 -0.16708 2019 5 30 58633 0.1117 0.4257 -0.16754 2019 5 31 58634 0.1132 0.4259 -0.16800 2019 6 1 58635 0.1147 0.4261 -0.16840 2019 6 2 58636 0.1162 0.4262 -0.16871 2019 6 3 58637 0.1177 0.4263 -0.16888 2019 6 4 58638 0.1192 0.4264 -0.16892 2019 6 5 58639 0.1207 0.4264 -0.16886 2019 6 6 58640 0.1222 0.4265 -0.16875 2019 6 7 58641 0.1238 0.4265 -0.16869 2019 6 8 58642 0.1253 0.4265 -0.16874 2019 6 9 58643 0.1268 0.4264 -0.16894 2019 6 10 58644 0.1283 0.4264 -0.16931 2019 6 11 58645 0.1298 0.4263 -0.16979 2019 6 12 58646 0.1313 0.4261 -0.17032 2019 6 13 58647 0.1328 0.4260 -0.17080 2019 6 14 58648 0.1343 0.4258 -0.17116 2019 6 15 58649 0.1358 0.4256 -0.17133 2019 6 16 58650 0.1373 0.4254 -0.17130 2019 6 17 58651 0.1388 0.4252 -0.17107 2019 6 18 58652 0.1402 0.4249 -0.17070 2019 6 19 58653 0.1417 0.4246 -0.17023 2019 6 20 58654 0.1432 0.4243 -0.16973 2019 6 21 58655 0.1446 0.4240 -0.16925 2019 6 22 58656 0.1461 0.4236 -0.16883 2019 6 23 58657 0.1475 0.4233 -0.16849 2019 6 24 58658 0.1490 0.4229 -0.16825 2019 6 25 58659 0.1504 0.4224 -0.16811 2019 6 26 58660 0.1518 0.4220 -0.16803 2019 6 27 58661 0.1533 0.4215 -0.16798 2019 6 28 58662 0.1547 0.4210 -0.16793 2019 6 29 58663 0.1561 0.4205 -0.16782 2019 6 30 58664 0.1574 0.4199 -0.16764 2019 7 1 58665 0.1588 0.4194 -0.16734 2019 7 2 58666 0.1602 0.4188 -0.16695 2019 7 3 58667 0.1615 0.4182 -0.16650 2019 7 4 58668 0.1629 0.4175 -0.16609 2019 7 5 58669 0.1642 0.4169 -0.16579 2019 7 6 58670 0.1655 0.4162 -0.16567 2019 7 7 58671 0.1668 0.4155 -0.16574 2019 7 8 58672 0.1681 0.4148 -0.16596 2019 7 9 58673 0.1694 0.4140 -0.16623 2019 7 10 58674 0.1706 0.4133 -0.16649 2019 7 11 58675 0.1719 0.4125 -0.16663 2019 7 12 58676 0.1731 0.4117 -0.16662 2019 7 13 58677 0.1743 0.4109 -0.16643 2019 7 14 58678 0.1755 0.4100 -0.16606 2019 7 15 58679 0.1767 0.4091 -0.16557 2019 7 16 58680 0.1778 0.4083 -0.16498 2019 7 17 58681 0.1790 0.4074 -0.16437 2019 7 18 58682 0.1801 0.4064 -0.16379 2019 7 19 58683 0.1812 0.4055 -0.16327 2019 7 20 58684 0.1823 0.4045 -0.16284 2019 7 21 58685 0.1834 0.4036 -0.16253 2019 7 22 58686 0.1844 0.4026 -0.16233 2019 7 23 58687 0.1855 0.4016 -0.16222 2019 7 24 58688 0.1865 0.4005 -0.16216 2019 7 25 58689 0.1875 0.3995 -0.16211 2019 7 26 58690 0.1884 0.3984 -0.16204 2019 7 27 58691 0.1894 0.3974 -0.16190 2019 7 28 58692 0.1903 0.3963 -0.16167 2019 7 29 58693 0.1912 0.3952 -0.16135 2019 7 30 58694 0.1921 0.3940 -0.16095 2019 7 31 58695 0.1930 0.3929 -0.16056 2019 8 1 58696 0.1938 0.3917 -0.16027 2019 8 2 58697 0.1946 0.3906 -0.16017 2019 8 3 58698 0.1954 0.3894 -0.16028 2019 8 4 58699 0.1962 0.3882 -0.16060 2019 8 5 58700 0.1969 0.3870 -0.16102 2019 8 6 58701 0.1977 0.3858 -0.16145 2019 8 7 58702 0.1984 0.3846 -0.16177 2019 8 8 58703 0.1991 0.3833 -0.16192 2019 8 9 58704 0.1997 0.3821 -0.16188 2019 8 10 58705 0.2003 0.3808 -0.16166 2019 8 11 58706 0.2009 0.3795 -0.16131 2019 8 12 58707 0.2015 0.3782 -0.16088 2019 8 13 58708 0.2021 0.3769 -0.16043 2019 8 14 58709 0.2026 0.3756 -0.16001 2019 8 15 58710 0.2031 0.3743 -0.15966 2019 8 16 58711 0.2036 0.3730 -0.15942 2019 8 17 58712 0.2040 0.3717 -0.15931 2019 8 18 58713 0.2044 0.3703 -0.15932 2019 8 19 58714 0.2048 0.3690 -0.15943 2019 8 20 58715 0.2052 0.3677 -0.15961 2019 8 21 58716 0.2056 0.3663 -0.15981 2019 8 22 58717 0.2059 0.3649 -0.16000 2019 8 23 58718 0.2062 0.3636 -0.16014 2019 8 24 58719 0.2064 0.3622 -0.16021 2019 8 25 58720 0.2067 0.3608 -0.16020 2019 8 26 58721 0.2069 0.3594 -0.16010 2019 8 27 58722 0.2071 0.3580 -0.15999 2019 8 28 58723 0.2072 0.3567 -0.15995 2019 8 29 58724 0.2073 0.3553 -0.16009 2019 8 30 58725 0.2074 0.3539 -0.16048 2019 8 31 58726 0.2075 0.3525 -0.16111 2019 9 1 58727 0.2076 0.3511 -0.16194 2019 9 2 58728 0.2076 0.3497 -0.16284 2019 9 3 58729 0.2076 0.3483 -0.16369 2019 9 4 58730 0.2075 0.3469 -0.16438 2019 9 5 58731 0.2075 0.3455 -0.16486 2019 9 6 58732 0.2074 0.3441 -0.16514 2019 9 7 58733 0.2073 0.3427 -0.16525 2019 9 8 58734 0.2071 0.3413 -0.16526 2019 9 9 58735 0.2069 0.3399 -0.16523 2019 9 10 58736 0.2067 0.3385 -0.16522 2019 9 11 58737 0.2065 0.3371 -0.16528 2019 9 12 58738 0.2063 0.3357 -0.16544 2019 9 13 58739 0.2060 0.3343 -0.16574 2019 9 14 58740 0.2057 0.3329 -0.16616 2019 9 15 58741 0.2053 0.3316 -0.16669 2019 9 16 58742 0.2050 0.3302 -0.16730 2019 9 17 58743 0.2046 0.3288 -0.16795 2019 9 18 58744 0.2041 0.3275 -0.16859 2019 9 19 58745 0.2037 0.3261 -0.16919 2019 9 20 58746 0.2032 0.3248 -0.16971 2019 9 21 58747 0.2027 0.3234 -0.17015 2019 9 22 58748 0.2022 0.3221 -0.17052 2019 9 23 58749 0.2017 0.3208 -0.17086 2019 9 24 58750 0.2011 0.3195 -0.17124 2019 9 25 58751 0.2005 0.3181 -0.17176 2019 9 26 58752 0.1998 0.3169 -0.17249 2019 9 27 58753 0.1992 0.3156 -0.17349 2019 9 28 58754 0.1985 0.3143 -0.17473 2019 9 29 58755 0.1978 0.3130 -0.17614 2019 9 30 58756 0.1971 0.3118 -0.17756 2019 10 1 58757 0.1963 0.3105 -0.17888 2019 10 2 58758 0.1955 0.3093 -0.17999 2019 10 3 58759 0.1947 0.3081 -0.18088 2019 10 4 58760 0.1939 0.3069 -0.18155 2019 10 5 58761 0.1930 0.3057 -0.18207 2019 10 6 58762 0.1922 0.3045 -0.18251 2019 10 7 58763 0.1913 0.3033 -0.18295 2019 10 8 58764 0.1903 0.3022 -0.18344 2019 10 9 58765 0.1894 0.3010 -0.18401 2019 10 10 58766 0.1884 0.2999 -0.18470 2019 10 11 58767 0.1874 0.2988 -0.18552 2019 10 12 58768 0.1864 0.2977 -0.18644 2019 10 13 58769 0.1854 0.2966 -0.18745 2019 10 14 58770 0.1843 0.2956 -0.18850 2019 10 15 58771 0.1833 0.2945 -0.18954 2019 10 16 58772 0.1822 0.2935 -0.19053 2019 10 17 58773 0.1810 0.2925 -0.19142 2019 10 18 58774 0.1799 0.2915 -0.19221 2019 10 19 58775 0.1788 0.2905 -0.19290 2019 10 20 58776 0.1776 0.2896 -0.19353 2019 10 21 58777 0.1764 0.2886 -0.19416 2019 10 22 58778 0.1752 0.2877 -0.19487 2019 10 23 58779 0.1739 0.2868 -0.19575 2019 10 24 58780 0.1727 0.2859 -0.19686 2019 10 25 58781 0.1714 0.2851 -0.19821 2019 10 26 58782 0.1701 0.2842 -0.19976 2019 10 27 58783 0.1688 0.2834 -0.20141 2019 10 28 58784 0.1675 0.2826 -0.20301 2019 10 29 58785 0.1662 0.2818 -0.20446 2019 10 30 58786 0.1648 0.2811 -0.20569 2019 10 31 58787 0.1634 0.2803 -0.20668 2019 11 1 58788 0.1621 0.2796 -0.20748 2019 11 2 58789 0.1607 0.2789 -0.20816 2019 11 3 58790 0.1593 0.2783 -0.20880 2019 11 4 58791 0.1578 0.2776 -0.20946 2019 11 5 58792 0.1564 0.2770 -0.21020 2019 11 6 58793 0.1549 0.2764 -0.21104 2019 11 7 58794 0.1535 0.2758 -0.21200 2019 11 8 58795 0.1520 0.2753 -0.21307 2019 11 9 58796 0.1505 0.2747 -0.21424 2019 11 10 58797 0.1490 0.2742 -0.21546 2019 11 11 58798 0.1475 0.2737 -0.21669 2019 11 12 58799 0.1460 0.2733 -0.21789 2019 11 13 58800 0.1445 0.2729 -0.21899 2019 11 14 58801 0.1429 0.2724 -0.21997 2019 11 15 58802 0.1414 0.2721 -0.22082 2019 11 16 58803 0.1399 0.2717 -0.22157 2019 11 17 58804 0.1383 0.2714 -0.22227 2019 11 18 58805 0.1367 0.2711 -0.22300 2019 11 19 58806 0.1352 0.2708 -0.22384 2019 11 20 58807 0.1336 0.2705 -0.22487 2019 11 21 58808 0.1320 0.2703 -0.22612 2019 11 22 58809 0.1304 0.2701 -0.22756 2019 11 23 58810 0.1288 0.2699 -0.22912 2019 11 24 58811 0.1272 0.2697 -0.23069 2019 11 25 58812 0.1256 0.2696 -0.23214 2019 11 26 58813 0.1240 0.2695 -0.23339 2019 11 27 58814 0.1224 0.2694 -0.23437 2019 11 28 58815 0.1208 0.2693 -0.23510 2019 11 29 58816 0.1192 0.2693 -0.23565 2019 11 30 58817 0.1175 0.2693 -0.23608 2019 12 1 58818 0.1159 0.2693 -0.23650 2019 12 2 58819 0.1143 0.2694 -0.23696 2019 12 3 58820 0.1127 0.2695 -0.23752 2019 12 4 58821 0.1111 0.2696 -0.23820 2019 12 5 58822 0.1095 0.2697 -0.23901 2019 12 6 58823 0.1078 0.2698 -0.23992 2019 12 7 58824 0.1062 0.2700 -0.24088 2019 12 8 58825 0.1046 0.2702 -0.24183 2019 12 9 58826 0.1030 0.2705 -0.24273 2019 12 10 58827 0.1014 0.2707 -0.24350 2019 12 11 58828 0.0998 0.2710 -0.24412 2019 12 12 58829 0.0982 0.2713 -0.24458 2019 12 13 58830 0.0967 0.2716 -0.24490 2019 12 14 58831 0.0951 0.2720 -0.24515 2019 12 15 58832 0.0935 0.2724 -0.24543 2019 12 16 58833 0.0919 0.2728 -0.24581 2019 12 17 58834 0.0904 0.2732 -0.24640 2019 12 18 58835 0.0888 0.2737 -0.24725 2019 12 19 58836 0.0873 0.2742 -0.24829 2019 12 20 58837 0.0857 0.2747 -0.24946 2019 12 21 58838 0.0842 0.2752 -0.25067 2019 12 22 58839 0.0827 0.2758 -0.25182 2019 12 23 58840 0.0812 0.2764 -0.25283 2019 12 24 58841 0.0797 0.2770 -0.25367 2019 12 25 58842 0.0782 0.2776 -0.25428 2019 12 26 58843 0.0767 0.2783 -0.25475 2019 12 27 58844 0.0753 0.2790 -0.25514 2019 12 28 58845 0.0738 0.2797 -0.25544 2019 12 29 58846 0.0724 0.2804 -0.25575 2019 12 30 58847 0.0709 0.2812 -0.25614 2019 12 31 58848 0.0695 0.2819 -0.25666 2020 1 1 58849 0.0681 0.2827 -0.25728 2020 1 2 58850 0.0667 0.2836 -0.25797 2020 1 3 58851 0.0654 0.2844 -0.25871 2020 1 4 58852 0.0640 0.2853 -0.25945 2020 1 5 58853 0.0627 0.2862 -0.26013 2020 1 6 58854 0.0614 0.2871 -0.26080 2020 1 7 58855 0.0601 0.2880 -0.26136 2020 1 8 58856 0.0588 0.2890 -0.26177 2020 1 9 58857 0.0575 0.2899 -0.26203 2020 1 10 58858 0.0563 0.2909 -0.26225 2020 1 11 58859 0.0550 0.2920 -0.26245 2020 1 12 58860 0.0538 0.2930 -0.26268 2020 1 13 58861 0.0526 0.2941 -0.26312 2020 1 14 58862 0.0515 0.2951 -0.26379 2020 1 15 58863 0.0503 0.2962 -0.26464 2020 1 16 58864 0.0492 0.2973 -0.26565 2020 1 17 58865 0.0481 0.2985 -0.26672 2020 1 18 58866 0.0470 0.2996 -0.26776 2020 1 19 58867 0.0459 0.3008 -0.26870 2020 1 20 58868 0.0449 0.3020 -0.26950 2020 1 21 58869 0.0438 0.3032 -0.27009 2020 1 22 58870 0.0428 0.3044 -0.27046 2020 1 23 58871 0.0419 0.3057 -0.27069 2020 1 24 58872 0.0409 0.3069 -0.27086 2020 1 25 58873 0.0400 0.3082 -0.27107 2020 1 26 58874 0.0391 0.3095 -0.27134 2020 1 27 58875 0.0382 0.3108 -0.27169 2020 1 28 58876 0.0373 0.3121 -0.27217 2020 1 29 58877 0.0365 0.3134 -0.27276 2020 1 30 58878 0.0357 0.3148 -0.27348 2020 1 31 58879 0.0349 0.3161 -0.27428 2020 2 1 58880 0.0341 0.3175 -0.27506 2020 2 2 58881 0.0334 0.3189 -0.27580 2020 2 3 58882 0.0327 0.3203 -0.27654 2020 2 4 58883 0.0320 0.3217 -0.27726 2020 2 5 58884 0.0314 0.3231 -0.27786 2020 2 6 58885 0.0307 0.3246 -0.27832 2020 2 7 58886 0.0301 0.3260 -0.27879 2020 2 8 58887 0.0295 0.3275 -0.27944 2020 2 9 58888 0.0290 0.3289 -0.28027 2020 2 10 58889 0.0285 0.3304 -0.28135 2020 2 11 58890 0.0280 0.3319 -0.28268 2020 2 12 58891 0.0275 0.3334 -0.28417 2020 2 13 58892 0.0271 0.3349 -0.28573 2020 2 14 58893 0.0267 0.3364 -0.28729 2020 2 15 58894 0.0263 0.3379 -0.28868 2020 2 16 58895 0.0260 0.3394 -0.28988 2020 2 17 58896 0.0256 0.3409 -0.29087 2020 2 18 58897 0.0254 0.3425 -0.29171 2020 2 19 58898 0.0251 0.3440 -0.29252 2020 2 20 58899 0.0249 0.3455 -0.29329 2020 2 21 58900 0.0247 0.3471 -0.29404 2020 2 22 58901 0.0245 0.3486 -0.29485 2020 2 23 58902 0.0243 0.3502 -0.29573 2020 2 24 58903 0.0242 0.3518 -0.29672 2020 2 25 58904 0.0241 0.3533 -0.29785 2020 2 26 58905 0.0241 0.3549 -0.29906 2020 2 27 58906 0.0240 0.3564 -0.30034 2020 2 28 58907 0.0241 0.3580 -0.30167 2020 2 29 58908 0.0241 0.3596 -0.30300 2020 3 1 58909 0.0241 0.3611 -0.30425 2020 3 2 58910 0.0242 0.3627 -0.30539 2020 3 3 58911 0.0244 0.3643 -0.30646 2020 3 4 58912 0.0245 0.3658 -0.30751 2020 3 5 58913 0.0247 0.3674 -0.30858 2020 3 6 58914 0.0249 0.3690 -0.30975 2020 3 7 58915 0.0251 0.3705 -0.31106 2020 3 8 58916 0.0254 0.3721 -0.31257 2020 3 9 58917 0.0257 0.3736 -0.31433 2020 3 10 58918 0.0261 0.3752 -0.31629 2020 3 11 58919 0.0264 0.3767 -0.31837 2020 3 12 58920 0.0268 0.3782 -0.32047 2020 3 13 58921 0.0272 0.3798 -0.32246 2020 3 14 58922 0.0277 0.3813 -0.32428 2020 3 15 58923 0.0281 0.3828 -0.32584 2020 3 16 58924 0.0287 0.3843 -0.32715 2020 3 17 58925 0.0292 0.3858 -0.32824 2020 3 18 58926 0.0298 0.3873 -0.32921 2020 3 19 58927 0.0303 0.3888 -0.33014 2020 3 20 58928 0.0310 0.3903 -0.33111 2020 3 21 58929 0.0316 0.3918 -0.33220 2020 3 22 58930 0.0323 0.3932 -0.33345 2020 3 23 58931 0.0330 0.3947 -0.33479 2020 3 24 58932 0.0337 0.3961 -0.33615 2020 3 25 58933 0.0345 0.3976 -0.33750 2020 3 26 58934 0.0353 0.3990 -0.33879 2020 3 27 58935 0.0361 0.4004 -0.33998 2020 3 28 58936 0.0370 0.4018 -0.34105 2020 3 29 58937 0.0378 0.4032 -0.34193 2020 3 30 58938 0.0387 0.4045 -0.34268 2020 3 31 58939 0.0396 0.4059 -0.34331 2020 4 1 58940 0.0406 0.4072 -0.34390 2020 4 2 58941 0.0416 0.4085 -0.34451 2020 4 3 58942 0.0426 0.4098 -0.34523 2020 4 4 58943 0.0436 0.4111 -0.34615 2020 4 5 58944 0.0447 0.4124 -0.34722 2020 4 6 58945 0.0457 0.4137 -0.34854 2020 4 7 58946 0.0468 0.4149 -0.35013 2020 4 8 58947 0.0480 0.4162 -0.35181 2020 4 9 58948 0.0491 0.4174 -0.35351 2020 4 10 58949 0.0503 0.4186 -0.35507 2020 4 11 58950 0.0515 0.4197 -0.35644 2020 4 12 58951 0.0527 0.4209 -0.35761 2020 4 13 58952 0.0539 0.4220 -0.35859 2020 4 14 58953 0.0552 0.4232 -0.35944 2020 4 15 58954 0.0565 0.4243 -0.36024 2020 4 16 58955 0.0578 0.4253 -0.36110 2020 4 17 58956 0.0591 0.4264 -0.36205 2020 4 18 58957 0.0605 0.4274 -0.36315 2020 4 19 58958 0.0618 0.4285 -0.36438 2020 4 20 58959 0.0632 0.4295 -0.36571 2020 4 21 58960 0.0646 0.4304 -0.36712 2020 4 22 58961 0.0661 0.4314 -0.36859 2020 4 23 58962 0.0675 0.4323 -0.37005 2020 4 24 58963 0.0690 0.4332 -0.37139 2020 4 25 58964 0.0705 0.4341 -0.37261 2020 4 26 58965 0.0720 0.4350 -0.37372 2020 4 27 58966 0.0735 0.4358 -0.37469 2020 4 28 58967 0.0750 0.4366 -0.37561 2020 4 29 58968 0.0766 0.4374 -0.37647 2020 4 30 58969 0.0781 0.4382 -0.37737 2020 5 1 58970 0.0797 0.4389 -0.37836 2020 5 2 58971 0.0813 0.4396 -0.37954 2020 5 3 58972 0.0829 0.4403 -0.38090 2020 5 4 58973 0.0846 0.4410 -0.38246 2020 5 5 58974 0.0862 0.4416 -0.38422 2020 5 6 58975 0.0879 0.4422 -0.38604 2020 5 7 58976 0.0895 0.4428 -0.38769 2020 5 8 58977 0.0912 0.4434 -0.38905 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) 58579 -104.29 0.47 -10.27 0.21 58580 -104.35 0.47 -10.53 0.21 58581 -104.33 0.47 -10.76 0.21 58582 -104.32 0.39 -10.91 0.22 58583 -104.41 0.44 -10.98 0.17 58584 -104.54 0.44 -11.02 0.17 58585 -104.57 0.44 -11.09 0.17 58586 -104.37 0.45 -11.20 0.16 58587 -103.97 0.44 -11.30 0.17 58588 -103.57 0.44 -11.30 0.17 58589 -103.37 0.15 -11.18 0.24 58590 -103.48 0.15 -11.05 0.24 58591 -103.85 0.15 -11.05 0.24 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 58544 -106.3 -9.5 58545 -105.7 -9.5 58546 -105.2 -9.4 58547 -104.9 -9.2 58548 -105.0 -9.0 58549 -105.1 -8.9 58550 -105.3 -9.0 58551 -105.4 -9.2 58552 -105.4 -9.4 58553 -105.4 -9.6 58554 -105.4 -9.8 58555 -105.4 -9.9 58556 -105.3 -9.9 58557 -105.3 -9.8 58558 -105.5 -9.9 58559 -105.8 -10.2 58560 -105.8 -10.5 58561 -105.4 -10.6 58562 -104.8 -10.5 58563 -104.5 -10.5 58564 -104.5 -10.5 58565 -104.8 -10.4 58566 -105.1 -10.3 58567 -105.2 -10.2 58568 -105.1 -10.3 58569 -105.2 -10.6 58570 -105.4 -11.0 58571 -105.6 -11.1 58572 -105.3 -11.0 58573 -104.7 -10.9 58574 -104.2 -10.7 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 58579 0.167 0.189 -0.215 0.214 58580 0.172 0.187 -0.209 0.215 58581 0.175 0.187 -0.202 0.215 58582 0.177 0.154 -0.195 0.221 58583 0.177 0.177 -0.188 0.168 58584 0.175 0.177 -0.183 0.168 58585 0.169 0.177 -0.182 0.168 58586 0.158 0.178 -0.185 0.160 58587 0.142 0.176 -0.193 0.175 58588 0.122 0.176 -0.203 0.175 58589 0.098 0.060 -0.213 0.240 58590 0.073 0.060 -0.223 0.240 58591 0.046 0.060 -0.232 0.240 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 58544 0.24 -0.22 58545 0.25 -0.21 58546 0.26 -0.20 58547 0.26 -0.19 58548 0.25 -0.21 58549 0.22 -0.24 58550 0.20 -0.27 58551 0.20 -0.28 58552 0.20 -0.28 58553 0.21 -0.28 58554 0.22 -0.28 58555 0.22 -0.27 58556 0.22 -0.27 58557 0.22 -0.26 58558 0.19 -0.26 58559 0.16 -0.25 58560 0.13 -0.25 58561 0.10 -0.24 58562 0.12 -0.27 58563 0.14 -0.31 58564 0.17 -0.34 58565 0.18 -0.31 58566 0.18 -0.25 58567 0.18 -0.19 58568 0.19 -0.13 58569 0.17 -0.16 58570 0.15 -0.20 58571 0.13 -0.25 58572 0.12 -0.26 58573 0.12 -0.25 58574 0.12 -0.24 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).