********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 September 2016 Vol. XXIX 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 = -0.3 seconds beginning 01 Sep 2016 at 0000 UTC Beginning 1 July 2015: TAI-UTC = 36.000 000 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 by available by 20:00 UTC. * * * * A positive leap second WILL be introduced in UTC on 31 Dec 2016. * * * * 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 16 9 23 57654 0.23631 .00009 0.34896 .00009 -0.269081 0.000012 16 9 24 57655 0.23579 .00009 0.34685 .00009 -0.270187 0.000011 16 9 25 57656 0.23526 .00009 0.34453 .00009 -0.271253 0.000010 16 9 26 57657 0.23480 .00009 0.34214 .00009 -0.272384 0.000010 16 9 27 57658 0.23424 .00009 0.33967 .00009 -0.273584 0.000009 16 9 28 57659 0.23386 .00009 0.33704 .00009 -0.274814 0.000007 16 9 29 57660 0.23386 .00009 0.33451 .00009 -0.276160 0.000007 _______________________________________________________________________ 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 = 0.1099 + 0.0993 cos A - 0.0320 sin A + 0.0250 cos C - 0.0078 sin C y = 0.3682 - 0.0281 cos A - 0.0969 sin A - 0.0078 cos C - 0.0250 sin C UT1-UTC = -0.3034 - 0.00139 (MJD - 57668) - (UT2-UT1) where A = 2*pi*(MJD-57660)/365.25 and C = 2*pi*(MJD-57660)/435. TAI-UTC(MJD 57661) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57660)**0.80 S t = 0.00025 (MJD-57660)**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) 2016 9 30 57661 0.2339 0.3323 -0.27755 2016 10 1 57662 0.2338 0.3303 -0.27894 2016 10 2 57663 0.2335 0.3284 -0.28030 2016 10 3 57664 0.2331 0.3266 -0.28157 2016 10 4 57665 0.2325 0.3249 -0.28271 2016 10 5 57666 0.2319 0.3231 -0.28372 2016 10 6 57667 0.2312 0.3213 -0.28458 2016 10 7 57668 0.2305 0.3196 -0.28537 2016 10 8 57669 0.2297 0.3179 -0.28615 2016 10 9 57670 0.2289 0.3162 -0.28703 2016 10 10 57671 0.2281 0.3145 -0.28806 2016 10 11 57672 0.2272 0.3128 -0.28928 2016 10 12 57673 0.2262 0.3111 -0.29068 2016 10 13 57674 0.2253 0.3095 -0.29230 2016 10 14 57675 0.2242 0.3078 -0.29411 2016 10 15 57676 0.2231 0.3062 -0.29607 2016 10 16 57677 0.2220 0.3045 -0.29808 2016 10 17 57678 0.2209 0.3029 -0.30004 2016 10 18 57679 0.2198 0.3012 -0.30186 2016 10 19 57680 0.2186 0.2996 -0.30351 2016 10 20 57681 0.2175 0.2980 -0.30501 2016 10 21 57682 0.2163 0.2965 -0.30641 2016 10 22 57683 0.2151 0.2950 -0.30777 2016 10 23 57684 0.2138 0.2935 -0.30914 2016 10 24 57685 0.2125 0.2921 -0.31057 2016 10 25 57686 0.2111 0.2906 -0.31204 2016 10 26 57687 0.2098 0.2892 -0.31357 2016 10 27 57688 0.2084 0.2878 -0.31514 2016 10 28 57689 0.2070 0.2864 -0.31673 2016 10 29 57690 0.2055 0.2851 -0.31830 2016 10 30 57691 0.2041 0.2837 -0.31984 2016 10 31 57692 0.2026 0.2824 -0.32131 2016 11 1 57693 0.2011 0.2811 -0.32270 2016 11 2 57694 0.1995 0.2799 -0.32401 2016 11 3 57695 0.1980 0.2786 -0.32526 2016 11 4 57696 0.1964 0.2774 -0.32646 2016 11 5 57697 0.1948 0.2762 -0.32766 2016 11 6 57698 0.1931 0.2751 -0.32892 2016 11 7 57699 0.1915 0.2739 -0.33026 2016 11 8 57700 0.1898 0.2728 -0.33174 2016 11 9 57701 0.1881 0.2717 -0.33339 2016 11 10 57702 0.1864 0.2706 -0.33523 2016 11 11 57703 0.1847 0.2696 -0.33722 2016 11 12 57704 0.1829 0.2686 -0.33931 2016 11 13 57705 0.1812 0.2676 -0.34142 2016 11 14 57706 0.1794 0.2666 -0.34345 2016 11 15 57707 0.1776 0.2657 -0.34533 2016 11 16 57708 0.1758 0.2648 -0.34705 2016 11 17 57709 0.1740 0.2639 -0.34861 2016 11 18 57710 0.1721 0.2631 -0.35009 2016 11 19 57711 0.1703 0.2623 -0.35153 2016 11 20 57712 0.1684 0.2615 -0.35299 2016 11 21 57713 0.1665 0.2607 -0.35449 2016 11 22 57714 0.1646 0.2600 -0.35603 2016 11 23 57715 0.1627 0.2593 -0.35760 2016 11 24 57716 0.1608 0.2586 -0.35918 2016 11 25 57717 0.1589 0.2580 -0.36075 2016 11 26 57718 0.1569 0.2574 -0.36228 2016 11 27 57719 0.1550 0.2568 -0.36374 2016 11 28 57720 0.1530 0.2562 -0.36511 2016 11 29 57721 0.1510 0.2557 -0.36639 2016 11 30 57722 0.1490 0.2552 -0.36758 2016 12 1 57723 0.1471 0.2548 -0.36871 2016 12 2 57724 0.1451 0.2543 -0.36980 2016 12 3 57725 0.1431 0.2539 -0.37089 2016 12 4 57726 0.1411 0.2536 -0.37205 2016 12 5 57727 0.1391 0.2532 -0.37330 2016 12 6 57728 0.1370 0.2529 -0.37469 2016 12 7 57729 0.1350 0.2527 -0.37624 2016 12 8 57730 0.1330 0.2524 -0.37793 2016 12 9 57731 0.1310 0.2522 -0.37976 2016 12 10 57732 0.1289 0.2520 -0.38165 2016 12 11 57733 0.1269 0.2519 -0.38354 2016 12 12 57734 0.1249 0.2518 -0.38534 2016 12 13 57735 0.1228 0.2517 -0.38702 2016 12 14 57736 0.1208 0.2516 -0.38857 2016 12 15 57737 0.1188 0.2516 -0.39004 2016 12 16 57738 0.1167 0.2516 -0.39147 2016 12 17 57739 0.1147 0.2516 -0.39292 2016 12 18 57740 0.1127 0.2517 -0.39442 2016 12 19 57741 0.1106 0.2518 -0.39597 2016 12 20 57742 0.1086 0.2520 -0.39755 2016 12 21 57743 0.1066 0.2521 -0.39913 2016 12 22 57744 0.1046 0.2523 -0.40068 2016 12 23 57745 0.1026 0.2526 -0.40219 2016 12 24 57746 0.1006 0.2528 -0.40362 2016 12 25 57747 0.0986 0.2531 -0.40496 2016 12 26 57748 0.0966 0.2534 -0.40621 2016 12 27 57749 0.0946 0.2538 -0.40737 2016 12 28 57750 0.0926 0.2542 -0.40846 2016 12 29 57751 0.0906 0.2546 -0.40951 2016 12 30 57752 0.0887 0.2550 -0.41056 2016 12 31 57753 0.0867 0.2555 -0.41165 2017 1 1 57754 0.0848 0.2560 0.58718 2017 1 2 57755 0.0829 0.2565 0.58588 2017 1 3 57756 0.0809 0.2571 0.58445 2017 1 4 57757 0.0790 0.2577 0.58288 2017 1 5 57758 0.0771 0.2583 0.58120 2017 1 6 57759 0.0753 0.2590 0.57947 2017 1 7 57760 0.0734 0.2597 0.57773 2017 1 8 57761 0.0715 0.2604 0.57605 2017 1 9 57762 0.0697 0.2611 0.57447 2017 1 10 57763 0.0679 0.2619 0.57301 2017 1 11 57764 0.0660 0.2627 0.57164 2017 1 12 57765 0.0642 0.2635 0.57032 2017 1 13 57766 0.0625 0.2644 0.56898 2017 1 14 57767 0.0607 0.2652 0.56758 2017 1 15 57768 0.0590 0.2661 0.56611 2017 1 16 57769 0.0572 0.2671 0.56464 2017 1 17 57770 0.0555 0.2680 0.56314 2017 1 18 57771 0.0538 0.2690 0.56164 2017 1 19 57772 0.0521 0.2700 0.56018 2017 1 20 57773 0.0505 0.2711 0.55878 2017 1 21 57774 0.0489 0.2721 0.55746 2017 1 22 57775 0.0472 0.2732 0.55622 2017 1 23 57776 0.0457 0.2743 0.55507 2017 1 24 57777 0.0441 0.2755 0.55399 2017 1 25 57778 0.0425 0.2767 0.55293 2017 1 26 57779 0.0410 0.2778 0.55188 2017 1 27 57780 0.0395 0.2791 0.55078 2017 1 28 57781 0.0380 0.2803 0.54959 2017 1 29 57782 0.0366 0.2815 0.54827 2017 1 30 57783 0.0351 0.2828 0.54679 2017 1 31 57784 0.0337 0.2841 0.54516 2017 2 1 57785 0.0323 0.2855 0.54340 2017 2 2 57786 0.0310 0.2868 0.54158 2017 2 3 57787 0.0296 0.2882 0.53974 2017 2 4 57788 0.0283 0.2895 0.53796 2017 2 5 57789 0.0271 0.2910 0.53626 2017 2 6 57790 0.0258 0.2924 0.53468 2017 2 7 57791 0.0246 0.2938 0.53318 2017 2 8 57792 0.0234 0.2953 0.53173 2017 2 9 57793 0.0222 0.2968 0.53028 2017 2 10 57794 0.0211 0.2983 0.52876 2017 2 11 57795 0.0199 0.2998 0.52715 2017 2 12 57796 0.0188 0.3013 0.52546 2017 2 13 57797 0.0178 0.3029 0.52371 2017 2 14 57798 0.0168 0.3045 0.52193 2017 2 15 57799 0.0158 0.3060 0.52017 2017 2 16 57800 0.0148 0.3076 0.51846 2017 2 17 57801 0.0138 0.3093 0.51683 2017 2 18 57802 0.0129 0.3109 0.51528 2017 2 19 57803 0.0120 0.3125 0.51382 2017 2 20 57804 0.0112 0.3142 0.51243 2017 2 21 57805 0.0104 0.3159 0.51109 2017 2 22 57806 0.0096 0.3175 0.50976 2017 2 23 57807 0.0088 0.3192 0.50839 2017 2 24 57808 0.0081 0.3209 0.50694 2017 2 25 57809 0.0074 0.3227 0.50536 2017 2 26 57810 0.0067 0.3244 0.50361 2017 2 27 57811 0.0061 0.3261 0.50169 2017 2 28 57812 0.0055 0.3279 0.49962 2017 3 1 57813 0.0049 0.3296 0.49745 2017 3 2 57814 0.0044 0.3314 0.49526 2017 3 3 57815 0.0039 0.3332 0.49313 2017 3 4 57816 0.0034 0.3350 0.49110 2017 3 5 57817 0.0030 0.3368 0.48919 2017 3 6 57818 0.0026 0.3386 0.48740 2017 3 7 57819 0.0022 0.3404 0.48569 2017 3 8 57820 0.0019 0.3422 0.48399 2017 3 9 57821 0.0016 0.3440 0.48225 2017 3 10 57822 0.0013 0.3458 0.48043 2017 3 11 57823 0.0011 0.3476 0.47852 2017 3 12 57824 0.0009 0.3494 0.47653 2017 3 13 57825 0.0007 0.3513 0.47449 2017 3 14 57826 0.0006 0.3531 0.47245 2017 3 15 57827 0.0005 0.3549 0.47044 2017 3 16 57828 0.0004 0.3568 0.46850 2017 3 17 57829 0.0003 0.3586 0.46664 2017 3 18 57830 0.0003 0.3605 0.46489 2017 3 19 57831 0.0004 0.3623 0.46322 2017 3 20 57832 0.0004 0.3641 0.46162 2017 3 21 57833 0.0005 0.3660 0.46005 2017 3 22 57834 0.0007 0.3678 0.45846 2017 3 23 57835 0.0008 0.3696 0.45682 2017 3 24 57836 0.0010 0.3715 0.45508 2017 3 25 57837 0.0012 0.3733 0.45318 2017 3 26 57838 0.0015 0.3751 0.45110 2017 3 27 57839 0.0018 0.3769 0.44885 2017 3 28 57840 0.0021 0.3787 0.44646 2017 3 29 57841 0.0025 0.3806 0.44400 2017 3 30 57842 0.0029 0.3824 0.44157 2017 3 31 57843 0.0033 0.3842 0.43924 2017 4 1 57844 0.0038 0.3860 0.43706 2017 4 2 57845 0.0042 0.3877 0.43502 2017 4 3 57846 0.0048 0.3895 0.43310 2017 4 4 57847 0.0053 0.3913 0.43123 2017 4 5 57848 0.0059 0.3930 0.42936 2017 4 6 57849 0.0065 0.3948 0.42744 2017 4 7 57850 0.0072 0.3965 0.42546 2017 4 8 57851 0.0078 0.3983 0.42342 2017 4 9 57852 0.0086 0.4000 0.42135 2017 4 10 57853 0.0093 0.4017 0.41931 2017 4 11 57854 0.0101 0.4034 0.41733 2017 4 12 57855 0.0109 0.4051 0.41547 2017 4 13 57856 0.0117 0.4068 0.41373 2017 4 14 57857 0.0126 0.4084 0.41213 2017 4 15 57858 0.0134 0.4101 0.41063 2017 4 16 57859 0.0144 0.4117 0.40921 2017 4 17 57860 0.0153 0.4133 0.40784 2017 4 18 57861 0.0163 0.4149 0.40646 2017 4 19 57862 0.0173 0.4165 0.40502 2017 4 20 57863 0.0183 0.4181 0.40348 2017 4 21 57864 0.0194 0.4197 0.40178 2017 4 22 57865 0.0205 0.4212 0.39990 2017 4 23 57866 0.0216 0.4227 0.39783 2017 4 24 57867 0.0227 0.4242 0.39557 2017 4 25 57868 0.0239 0.4257 0.39320 2017 4 26 57869 0.0251 0.4272 0.39081 2017 4 27 57870 0.0263 0.4287 0.38850 2017 4 28 57871 0.0275 0.4301 0.38633 2017 4 29 57872 0.0288 0.4315 0.38433 2017 4 30 57873 0.0301 0.4329 0.38250 2017 5 1 57874 0.0314 0.4343 0.38076 2017 5 2 57875 0.0328 0.4357 0.37907 2017 5 3 57876 0.0341 0.4370 0.37736 2017 5 4 57877 0.0355 0.4383 0.37561 2017 5 5 57878 0.0369 0.4396 0.37384 2017 5 6 57879 0.0384 0.4409 0.37206 2017 5 7 57880 0.0398 0.4421 0.37029 2017 5 8 57881 0.0413 0.4434 0.36855 2017 5 9 57882 0.0428 0.4446 0.36678 2017 5 10 57883 0.0443 0.4457 0.36506 2017 5 11 57884 0.0458 0.4469 0.36346 2017 5 12 57885 0.0474 0.4480 0.36199 2017 5 13 57886 0.0490 0.4492 0.36061 2017 5 14 57887 0.0506 0.4502 0.35934 2017 5 15 57888 0.0522 0.4513 0.35822 2017 5 16 57889 0.0538 0.4524 0.35718 2017 5 17 57890 0.0554 0.4534 0.35600 2017 5 18 57891 0.0571 0.4544 0.35475 2017 5 19 57892 0.0588 0.4553 0.35342 2017 5 20 57893 0.0605 0.4563 0.35192 2017 5 21 57894 0.0622 0.4572 0.35034 2017 5 22 57895 0.0639 0.4581 0.34864 2017 5 23 57896 0.0657 0.4589 0.34693 2017 5 24 57897 0.0674 0.4597 0.34520 2017 5 25 57898 0.0692 0.4606 0.34376 2017 5 26 57899 0.0710 0.4613 0.34244 2017 5 27 57900 0.0727 0.4621 0.34131 2017 5 28 57901 0.0745 0.4628 0.34027 2017 5 29 57902 0.0764 0.4635 0.33929 2017 5 30 57903 0.0782 0.4642 0.33830 2017 5 31 57904 0.0800 0.4648 0.33721 2017 6 1 57905 0.0819 0.4654 0.33614 2017 6 2 57906 0.0837 0.4660 0.33491 2017 6 3 57907 0.0856 0.4666 0.33373 2017 6 4 57908 0.0874 0.4671 0.33250 2017 6 5 57909 0.0893 0.4676 0.33130 2017 6 6 57910 0.0912 0.4681 0.33022 2017 6 7 57911 0.0931 0.4685 0.32933 2017 6 8 57912 0.0950 0.4689 0.32842 2017 6 9 57913 0.0969 0.4693 0.32784 2017 6 10 57914 0.0988 0.4697 0.32735 2017 6 11 57915 0.1007 0.4700 0.32694 2017 6 12 57916 0.1026 0.4703 0.32658 2017 6 13 57917 0.1045 0.4705 0.32615 2017 6 14 57918 0.1065 0.4708 0.32569 2017 6 15 57919 0.1084 0.4710 0.32515 2017 6 16 57920 0.1103 0.4712 0.32433 2017 6 17 57921 0.1122 0.4713 0.32338 2017 6 18 57922 0.1141 0.4714 0.32223 2017 6 19 57923 0.1161 0.4715 0.32094 2017 6 20 57924 0.1180 0.4716 0.31957 2017 6 21 57925 0.1199 0.4716 0.31819 2017 6 22 57926 0.1218 0.4716 0.31688 2017 6 23 57927 0.1238 0.4716 0.31575 2017 6 24 57928 0.1257 0.4716 0.31472 2017 6 25 57929 0.1276 0.4715 0.31375 2017 6 26 57930 0.1295 0.4714 0.31276 2017 6 27 57931 0.1314 0.4712 0.31172 2017 6 28 57932 0.1333 0.4710 0.31072 2017 6 29 57933 0.1352 0.4708 0.30957 2017 6 30 57934 0.1371 0.4706 0.30843 2017 7 1 57935 0.1389 0.4704 0.30720 2017 7 2 57936 0.1408 0.4701 0.30606 2017 7 3 57937 0.1427 0.4698 0.30495 2017 7 4 57938 0.1445 0.4694 0.30389 2017 7 5 57939 0.1464 0.4690 0.30296 2017 7 6 57940 0.1482 0.4686 0.30209 2017 7 7 57941 0.1500 0.4682 0.30130 2017 7 8 57942 0.1519 0.4678 0.30049 2017 7 9 57943 0.1537 0.4673 0.29971 2017 7 10 57944 0.1555 0.4668 0.29892 2017 7 11 57945 0.1572 0.4662 0.29809 2017 7 12 57946 0.1590 0.4657 0.29719 2017 7 13 57947 0.1608 0.4651 0.29623 2017 7 14 57948 0.1625 0.4645 0.29514 2017 7 15 57949 0.1643 0.4638 0.29397 2017 7 16 57950 0.1660 0.4631 0.29280 2017 7 17 57951 0.1677 0.4624 0.29163 2017 7 18 57952 0.1694 0.4617 0.29053 2017 7 19 57953 0.1710 0.4610 0.28959 2017 7 20 57954 0.1727 0.4602 0.28885 2017 7 21 57955 0.1743 0.4594 0.28813 2017 7 22 57956 0.1759 0.4586 0.28760 2017 7 23 57957 0.1776 0.4577 0.28702 2017 7 24 57958 0.1791 0.4569 0.28631 2017 7 25 57959 0.1807 0.4560 0.28554 2017 7 26 57960 0.1823 0.4550 0.28469 2017 7 27 57961 0.1838 0.4541 0.28381 2017 7 28 57962 0.1853 0.4531 0.28301 2017 7 29 57963 0.1868 0.4522 0.28225 2017 7 30 57964 0.1883 0.4511 0.28155 2017 7 31 57965 0.1897 0.4501 0.28093 2017 8 1 57966 0.1911 0.4491 0.28040 2017 8 2 57967 0.1925 0.4480 0.27997 2017 8 3 57968 0.1939 0.4469 0.27954 2017 8 4 57969 0.1953 0.4458 0.27916 2017 8 5 57970 0.1966 0.4446 0.27880 2017 8 6 57971 0.1979 0.4435 0.27835 2017 8 7 57972 0.1992 0.4423 0.27783 2017 8 8 57973 0.2005 0.4411 0.27728 2017 8 9 57974 0.2018 0.4399 0.27660 2017 8 10 57975 0.2030 0.4387 0.27584 2017 8 11 57976 0.2042 0.4374 0.27490 2017 8 12 57977 0.2053 0.4361 0.27386 2017 8 13 57978 0.2065 0.4348 0.27274 2017 8 14 57979 0.2076 0.4335 0.27169 2017 8 15 57980 0.2087 0.4322 0.27071 2017 8 16 57981 0.2098 0.4309 0.26986 2017 8 17 57982 0.2108 0.4295 0.26920 2017 8 18 57983 0.2118 0.4282 0.26869 2017 8 19 57984 0.2128 0.4268 0.26821 2017 8 20 57985 0.2138 0.4254 0.26766 2017 8 21 57986 0.2147 0.4240 0.26708 2017 8 22 57987 0.2156 0.4226 0.26640 2017 8 23 57988 0.2165 0.4211 0.26570 2017 8 24 57989 0.2173 0.4197 0.26491 2017 8 25 57990 0.2182 0.4182 0.26412 2017 8 26 57991 0.2190 0.4167 0.26335 2017 8 27 57992 0.2197 0.4152 0.26259 2017 8 28 57993 0.2205 0.4137 0.26185 2017 8 29 57994 0.2212 0.4122 0.26117 2017 8 30 57995 0.2218 0.4107 0.26057 2017 8 31 57996 0.2225 0.4092 0.25998 2017 9 1 57997 0.2231 0.4077 0.25948 2017 9 2 57998 0.2237 0.4061 0.25896 2017 9 3 57999 0.2243 0.4046 0.25840 2017 9 4 58000 0.2248 0.4030 0.25773 2017 9 5 58001 0.2253 0.4014 0.25694 2017 9 6 58002 0.2257 0.3999 0.25596 2017 9 7 58003 0.2262 0.3983 0.25482 2017 9 8 58004 0.2266 0.3967 0.25354 2017 9 9 58005 0.2270 0.3951 0.25227 2017 9 10 58006 0.2273 0.3935 0.25101 2017 9 11 58007 0.2276 0.3919 0.24978 2017 9 12 58008 0.2279 0.3903 0.24860 2017 9 13 58009 0.2282 0.3887 0.24746 2017 9 14 58010 0.2284 0.3871 0.24641 2017 9 15 58011 0.2286 0.3855 0.24534 2017 9 16 58012 0.2287 0.3838 0.24423 2017 9 17 58013 0.2289 0.3822 0.24295 2017 9 18 58014 0.2290 0.3806 0.24157 2017 9 19 58015 0.2290 0.3790 0.24008 2017 9 20 58016 0.2291 0.3774 0.23852 2017 9 21 58017 0.2291 0.3758 0.23694 2017 9 22 58018 0.2291 0.3741 0.23539 2017 9 23 58019 0.2290 0.3725 0.23394 2017 9 24 58020 0.2289 0.3709 0.23259 2017 9 25 58021 0.2288 0.3693 0.23131 2017 9 26 58022 0.2287 0.3677 0.23003 2017 9 27 58023 0.2285 0.3661 0.22879 2017 9 28 58024 0.2283 0.3645 0.22767 2017 9 29 58025 0.2281 0.3629 0.22665 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) 57639 -105.52 0.30 -13.01 0.08 57640 -105.43 0.30 -12.96 0.08 57641 -105.67 0.30 -12.86 0.08 57642 -105.93 0.15 -12.80 0.06 57643 -105.93 0.15 -12.83 0.06 57644 -105.73 0.15 -13.00 0.06 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57639 0.087 0.119 0.083 0.080 57640 0.107 0.119 0.060 0.080 57641 0.124 0.119 0.010 0.080 57642 0.149 0.060 -0.072 0.060 57643 0.188 0.060 -0.135 0.060 57644 0.233 0.060 -0.180 0.060 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).