********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 August 2016 Vol. XXIX No. 034 ______________________________________________________________________ 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 19 May 2016 at 0000 UTC = -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 8 19 57619 0.22730 .00009 0.41614 .00009 -0.235212 0.000016 16 8 20 57620 0.22755 .00009 0.41420 .00009 -0.236225 0.000017 16 8 21 57621 0.22770 .00009 0.41220 .00009 -0.237328 0.000018 16 8 22 57622 0.22794 .00009 0.41016 .00009 -0.238441 0.000015 16 8 23 57623 0.22843 .00009 0.40793 .00009 -0.239541 0.000013 16 8 24 57624 0.22928 .00009 0.40575 .00009 -0.240600 0.000013 16 8 25 57625 0.23030 .00009 0.40387 .00009 -0.241580 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 = 0.1018 + 0.1004 cos A + 0.0389 sin A + 0.0291 cos C - 0.0025 sin C y = 0.3685 + 0.0390 cos A - 0.0964 sin A - 0.0025 cos C - 0.0291 sin C UT1-UTC = -0.2670 - 0.00142 (MJD - 57633) - (UT2-UT1) where A = 2*pi*(MJD-57625)/365.25 and C = 2*pi*(MJD-57625)/435. TAI-UTC(MJD 57626) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57625)**0.80 S t = 0.00025 (MJD-57625)**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 8 26 57626 0.2312 0.4021 -0.24235 2016 8 27 57627 0.2320 0.4004 -0.24298 2016 8 28 57628 0.2326 0.3988 -0.24354 2016 8 29 57629 0.2331 0.3970 -0.24407 2016 8 30 57630 0.2336 0.3952 -0.24465 2016 8 31 57631 0.2340 0.3933 -0.24530 2016 9 1 57632 0.2344 0.3914 -0.24600 2016 9 2 57633 0.2348 0.3896 -0.24673 2016 9 3 57634 0.2351 0.3877 -0.24751 2016 9 4 57635 0.2354 0.3858 -0.24834 2016 9 5 57636 0.2356 0.3839 -0.24917 2016 9 6 57637 0.2358 0.3821 -0.25000 2016 9 7 57638 0.2360 0.3802 -0.25081 2016 9 8 57639 0.2361 0.3783 -0.25158 2016 9 9 57640 0.2362 0.3765 -0.25231 2016 9 10 57641 0.2362 0.3746 -0.25301 2016 9 11 57642 0.2363 0.3727 -0.25373 2016 9 12 57643 0.2363 0.3708 -0.25450 2016 9 13 57644 0.2363 0.3689 -0.25539 2016 9 14 57645 0.2363 0.3670 -0.25646 2016 9 15 57646 0.2363 0.3652 -0.25775 2016 9 16 57647 0.2362 0.3633 -0.25924 2016 9 17 57648 0.2360 0.3615 -0.26092 2016 9 18 57649 0.2358 0.3596 -0.26270 2016 9 19 57650 0.2356 0.3578 -0.26449 2016 9 20 57651 0.2354 0.3559 -0.26619 2016 9 21 57652 0.2351 0.3541 -0.26774 2016 9 22 57653 0.2348 0.3522 -0.26911 2016 9 23 57654 0.2344 0.3504 -0.27035 2016 9 24 57655 0.2341 0.3486 -0.27150 2016 9 25 57656 0.2336 0.3468 -0.27263 2016 9 26 57657 0.2332 0.3450 -0.27378 2016 9 27 57658 0.2327 0.3432 -0.27500 2016 9 28 57659 0.2322 0.3414 -0.27630 2016 9 29 57660 0.2316 0.3396 -0.27767 2016 9 30 57661 0.2311 0.3378 -0.27910 2016 10 1 57662 0.2304 0.3360 -0.28056 2016 10 2 57663 0.2298 0.3343 -0.28200 2016 10 3 57664 0.2291 0.3325 -0.28343 2016 10 4 57665 0.2284 0.3308 -0.28480 2016 10 5 57666 0.2277 0.3291 -0.28612 2016 10 6 57667 0.2269 0.3273 -0.28737 2016 10 7 57668 0.2261 0.3256 -0.28857 2016 10 8 57669 0.2253 0.3239 -0.28976 2016 10 9 57670 0.2244 0.3223 -0.29096 2016 10 10 57671 0.2235 0.3206 -0.29223 2016 10 11 57672 0.2226 0.3189 -0.29362 2016 10 12 57673 0.2216 0.3173 -0.29517 2016 10 13 57674 0.2207 0.3157 -0.29691 2016 10 14 57675 0.2196 0.3141 -0.29885 2016 10 15 57676 0.2186 0.3125 -0.30095 2016 10 16 57677 0.2175 0.3109 -0.30312 2016 10 17 57678 0.2164 0.3094 -0.30526 2016 10 18 57679 0.2153 0.3078 -0.30730 2016 10 19 57680 0.2142 0.3063 -0.30920 2016 10 20 57681 0.2130 0.3048 -0.31095 2016 10 21 57682 0.2118 0.3033 -0.31260 2016 10 22 57683 0.2105 0.3018 -0.31421 2016 10 23 57684 0.2093 0.3004 -0.31584 2016 10 24 57685 0.2080 0.2989 -0.31752 2016 10 25 57686 0.2067 0.2975 -0.31927 2016 10 26 57687 0.2053 0.2961 -0.32108 2016 10 27 57688 0.2040 0.2948 -0.32294 2016 10 28 57689 0.2026 0.2934 -0.32481 2016 10 29 57690 0.2012 0.2921 -0.32666 2016 10 30 57691 0.1997 0.2908 -0.32846 2016 10 31 57692 0.1983 0.2895 -0.33019 2016 11 1 57693 0.1968 0.2882 -0.33184 2016 11 2 57694 0.1953 0.2870 -0.33340 2016 11 3 57695 0.1938 0.2858 -0.33488 2016 11 4 57696 0.1922 0.2846 -0.33631 2016 11 5 57697 0.1907 0.2834 -0.33773 2016 11 6 57698 0.1891 0.2823 -0.33918 2016 11 7 57699 0.1875 0.2812 -0.34070 2016 11 8 57700 0.1858 0.2801 -0.34235 2016 11 9 57701 0.1842 0.2790 -0.34415 2016 11 10 57702 0.1825 0.2780 -0.34612 2016 11 11 57703 0.1809 0.2769 -0.34825 2016 11 12 57704 0.1792 0.2759 -0.35048 2016 11 13 57705 0.1774 0.2750 -0.35273 2016 11 14 57706 0.1757 0.2740 -0.35491 2016 11 15 57707 0.1740 0.2731 -0.35694 2016 11 16 57708 0.1722 0.2722 -0.35881 2016 11 17 57709 0.1704 0.2714 -0.36053 2016 11 18 57710 0.1686 0.2705 -0.36216 2016 11 19 57711 0.1668 0.2697 -0.36377 2016 11 20 57712 0.1650 0.2690 -0.36539 2016 11 21 57713 0.1632 0.2682 -0.36705 2016 11 22 57714 0.1613 0.2675 -0.36875 2016 11 23 57715 0.1595 0.2668 -0.37048 2016 11 24 57716 0.1576 0.2661 -0.37221 2016 11 25 57717 0.1557 0.2655 -0.37392 2016 11 26 57718 0.1538 0.2649 -0.37557 2016 11 27 57719 0.1519 0.2643 -0.37716 2016 11 28 57720 0.1500 0.2638 -0.37866 2016 11 29 57721 0.1481 0.2632 -0.38007 2016 11 30 57722 0.1461 0.2628 -0.38140 2016 12 1 57723 0.1442 0.2623 -0.38266 2016 12 2 57724 0.1423 0.2619 -0.38389 2016 12 3 57725 0.1403 0.2615 -0.38514 2016 12 4 57726 0.1384 0.2611 -0.38645 2016 12 5 57727 0.1364 0.2608 -0.38785 2016 12 6 57728 0.1344 0.2604 -0.38938 2016 12 7 57729 0.1325 0.2602 -0.39107 2016 12 8 57730 0.1305 0.2599 -0.39290 2016 12 9 57731 0.1285 0.2597 -0.39484 2016 12 10 57732 0.1265 0.2595 -0.39683 2016 12 11 57733 0.1246 0.2593 -0.39880 2016 12 12 57734 0.1226 0.2592 -0.40065 2016 12 13 57735 0.1206 0.2591 -0.40236 2016 12 14 57736 0.1186 0.2591 -0.40393 2016 12 15 57737 0.1166 0.2590 -0.40540 2016 12 16 57738 0.1147 0.2590 -0.40683 2016 12 17 57739 0.1127 0.2590 -0.40827 2016 12 18 57740 0.1107 0.2591 -0.40975 2016 12 19 57741 0.1087 0.2592 -0.41127 2016 12 20 57742 0.1067 0.2593 -0.41283 2016 12 21 57743 0.1048 0.2594 -0.41438 2016 12 22 57744 0.1028 0.2596 -0.41592 2016 12 23 57745 0.1009 0.2598 -0.41740 2016 12 24 57746 0.0989 0.2600 -0.41881 2016 12 25 57747 0.0969 0.2603 -0.42013 2016 12 26 57748 0.0950 0.2606 -0.42136 2016 12 27 57749 0.0931 0.2609 -0.42251 2016 12 28 57750 0.0911 0.2613 -0.42359 2016 12 29 57751 0.0892 0.2617 -0.42463 2016 12 30 57752 0.0873 0.2621 -0.42568 2016 12 31 57753 0.0854 0.2625 -0.42677 2017 1 1 57754 0.0835 0.2630 0.57204 2017 1 2 57755 0.0816 0.2635 0.57073 2017 1 3 57756 0.0798 0.2640 0.56928 2017 1 4 57757 0.0779 0.2646 0.56769 2017 1 5 57758 0.0761 0.2652 0.56599 2017 1 6 57759 0.0742 0.2658 0.56422 2017 1 7 57760 0.0724 0.2665 0.56245 2017 1 8 57761 0.0706 0.2671 0.56073 2017 1 9 57762 0.0688 0.2678 0.55912 2017 1 10 57763 0.0670 0.2686 0.55762 2017 1 11 57764 0.0652 0.2693 0.55621 2017 1 12 57765 0.0635 0.2701 0.55485 2017 1 13 57766 0.0618 0.2709 0.55347 2017 1 14 57767 0.0600 0.2717 0.55203 2017 1 15 57768 0.0583 0.2726 0.55052 2017 1 16 57769 0.0567 0.2735 0.54896 2017 1 17 57770 0.0550 0.2744 0.54736 2017 1 18 57771 0.0533 0.2754 0.54577 2017 1 19 57772 0.0517 0.2763 0.54420 2017 1 20 57773 0.0501 0.2773 0.54270 2017 1 21 57774 0.0485 0.2783 0.54128 2017 1 22 57775 0.0469 0.2794 0.53993 2017 1 23 57776 0.0454 0.2804 0.53867 2017 1 24 57777 0.0439 0.2815 0.53747 2017 1 25 57778 0.0423 0.2826 0.53630 2017 1 26 57779 0.0409 0.2838 0.53513 2017 1 27 57780 0.0394 0.2849 0.53391 2017 1 28 57781 0.0380 0.2861 0.53260 2017 1 29 57782 0.0365 0.2873 0.53116 2017 1 30 57783 0.0351 0.2885 0.52956 2017 1 31 57784 0.0338 0.2898 0.52780 2017 2 1 57785 0.0324 0.2911 0.52593 2017 2 2 57786 0.0311 0.2923 0.52398 2017 2 3 57787 0.0298 0.2936 0.52203 2017 2 4 57788 0.0285 0.2950 0.52013 2017 2 5 57789 0.0273 0.2963 0.51832 2017 2 6 57790 0.0261 0.2977 0.51662 2017 2 7 57791 0.0249 0.2991 0.51501 2017 2 8 57792 0.0237 0.3005 0.51346 2017 2 9 57793 0.0226 0.3019 0.51190 2017 2 10 57794 0.0214 0.3033 0.51028 2017 2 11 57795 0.0204 0.3048 0.50857 2017 2 12 57796 0.0193 0.3063 0.50678 2017 2 13 57797 0.0183 0.3078 0.50493 2017 2 14 57798 0.0173 0.3093 0.50306 2017 2 15 57799 0.0163 0.3108 0.50120 2017 2 16 57800 0.0153 0.3123 0.49940 2017 2 17 57801 0.0144 0.3139 0.49768 2017 2 18 57802 0.0135 0.3155 0.49605 2017 2 19 57803 0.0127 0.3170 0.49451 2017 2 20 57804 0.0119 0.3186 0.49305 2017 2 21 57805 0.0111 0.3202 0.49165 2017 2 22 57806 0.0103 0.3219 0.49026 2017 2 23 57807 0.0096 0.3235 0.48885 2017 2 24 57808 0.0088 0.3251 0.48738 2017 2 25 57809 0.0082 0.3268 0.48580 2017 2 26 57810 0.0075 0.3284 0.48408 2017 2 27 57811 0.0069 0.3301 0.48221 2017 2 28 57812 0.0063 0.3318 0.48022 2017 3 1 57813 0.0058 0.3335 0.47817 2017 3 2 57814 0.0053 0.3352 0.47613 2017 3 3 57815 0.0048 0.3369 0.47415 2017 3 4 57816 0.0043 0.3386 0.47229 2017 3 5 57817 0.0039 0.3403 0.47053 2017 3 6 57818 0.0035 0.3421 0.46885 2017 3 7 57819 0.0032 0.3438 0.46719 2017 3 8 57820 0.0028 0.3455 0.46550 2017 3 9 57821 0.0025 0.3473 0.46372 2017 3 10 57822 0.0023 0.3490 0.46183 2017 3 11 57823 0.0021 0.3508 0.45982 2017 3 12 57824 0.0019 0.3525 0.45773 2017 3 13 57825 0.0017 0.3543 0.45560 2017 3 14 57826 0.0016 0.3561 0.45347 2017 3 15 57827 0.0015 0.3578 0.45141 2017 3 16 57828 0.0014 0.3596 0.44944 2017 3 17 57829 0.0014 0.3614 0.44759 2017 3 18 57830 0.0014 0.3631 0.44586 2017 3 19 57831 0.0014 0.3649 0.44426 2017 3 20 57832 0.0015 0.3667 0.44275 2017 3 21 57833 0.0016 0.3684 0.44129 2017 3 22 57834 0.0017 0.3702 0.43983 2017 3 23 57835 0.0018 0.3720 0.43830 2017 3 24 57836 0.0020 0.3737 0.43664 2017 3 25 57837 0.0023 0.3755 0.43480 2017 3 26 57838 0.0025 0.3772 0.43276 2017 3 27 57839 0.0028 0.3790 0.43052 2017 3 28 57840 0.0031 0.3807 0.42812 2017 3 29 57841 0.0035 0.3825 0.42566 2017 3 30 57842 0.0039 0.3842 0.42326 2017 3 31 57843 0.0043 0.3860 0.42100 2017 4 1 57844 0.0047 0.3877 0.41894 2017 4 2 57845 0.0052 0.3894 0.41706 2017 4 3 57846 0.0057 0.3911 0.41530 2017 4 4 57847 0.0063 0.3928 0.41359 2017 4 5 57848 0.0069 0.3945 0.41189 2017 4 6 57849 0.0075 0.3962 0.41015 2017 4 7 57850 0.0081 0.3979 0.40822 2017 4 8 57851 0.0088 0.3995 0.40620 2017 4 9 57852 0.0095 0.4012 0.40406 2017 4 10 57853 0.0102 0.4029 0.40186 2017 4 11 57854 0.0109 0.4045 0.39963 2017 4 12 57855 0.0117 0.4061 0.39740 2017 4 13 57856 0.0125 0.4077 0.39523 2017 4 14 57857 0.0134 0.4093 0.39320 2017 4 15 57858 0.0142 0.4109 0.39126 2017 4 16 57859 0.0151 0.4125 0.38940 2017 4 17 57860 0.0161 0.4140 0.38758 2017 4 18 57861 0.0170 0.4156 0.38577 2017 4 19 57862 0.0180 0.4171 0.38404 2017 4 20 57863 0.0190 0.4186 0.38215 2017 4 21 57864 0.0200 0.4201 0.38016 2017 4 22 57865 0.0211 0.4216 0.37791 2017 4 23 57866 0.0222 0.4231 0.37552 2017 4 24 57867 0.0233 0.4246 0.37291 2017 4 25 57868 0.0244 0.4260 0.37014 2017 4 26 57869 0.0256 0.4274 0.36737 2017 4 27 57870 0.0268 0.4288 0.36462 2017 4 28 57871 0.0280 0.4302 0.36200 2017 4 29 57872 0.0292 0.4316 0.35948 2017 4 30 57873 0.0305 0.4329 0.35711 2017 5 1 57874 0.0318 0.4342 0.35486 2017 5 2 57875 0.0331 0.4355 0.35266 2017 5 3 57876 0.0344 0.4368 0.35048 2017 5 4 57877 0.0358 0.4381 0.34833 2017 5 5 57878 0.0371 0.4393 0.34613 2017 5 6 57879 0.0385 0.4406 0.34395 2017 5 7 57880 0.0399 0.4418 0.34184 2017 5 8 57881 0.0414 0.4430 0.33983 2017 5 9 57882 0.0428 0.4441 0.33792 2017 5 10 57883 0.0443 0.4453 0.33621 2017 5 11 57884 0.0458 0.4464 0.33470 2017 5 12 57885 0.0473 0.4475 0.33324 2017 5 13 57886 0.0489 0.4485 0.33199 2017 5 14 57887 0.0504 0.4496 0.33079 2017 5 15 57888 0.0520 0.4506 0.32957 2017 5 16 57889 0.0536 0.4516 0.32837 2017 5 17 57890 0.0552 0.4526 0.32715 2017 5 18 57891 0.0568 0.4535 0.32588 2017 5 19 57892 0.0584 0.4545 0.32457 2017 5 20 57893 0.0600 0.4554 0.32313 2017 5 21 57894 0.0617 0.4562 0.32152 2017 5 22 57895 0.0634 0.4571 0.31977 2017 5 23 57896 0.0651 0.4579 0.31795 2017 5 24 57897 0.0668 0.4587 0.31615 2017 5 25 57898 0.0685 0.4595 0.31435 2017 5 26 57899 0.0702 0.4602 0.31271 2017 5 27 57900 0.0720 0.4609 0.31123 2017 5 28 57901 0.0737 0.4616 0.30980 2017 5 29 57902 0.0755 0.4623 0.30845 2017 5 30 57903 0.0772 0.4629 0.30718 2017 5 31 57904 0.0790 0.4636 0.30590 2017 6 1 57905 0.0808 0.4641 0.30463 2017 6 2 57906 0.0826 0.4647 0.30330 2017 6 3 57907 0.0844 0.4652 0.30198 2017 6 4 57908 0.0862 0.4657 0.30067 2017 6 5 57909 0.0880 0.4662 0.29948 2017 6 6 57910 0.0899 0.4667 0.29842 2017 6 7 57911 0.0917 0.4671 0.29751 2017 6 8 57912 0.0935 0.4675 0.29682 2017 6 9 57913 0.0954 0.4679 0.29632 2017 6 10 57914 0.0972 0.4682 0.29595 2017 6 11 57915 0.0991 0.4685 0.29562 2017 6 12 57916 0.1009 0.4688 0.29540 2017 6 13 57917 0.1028 0.4690 0.29516 2017 6 14 57918 0.1046 0.4693 0.29495 2017 6 15 57919 0.1065 0.4695 0.29460 2017 6 16 57920 0.1083 0.4696 0.29413 2017 6 17 57921 0.1102 0.4698 0.29349 2017 6 18 57922 0.1121 0.4699 0.29265 2017 6 19 57923 0.1139 0.4700 0.29166 2017 6 20 57924 0.1158 0.4700 0.29059 2017 6 21 57925 0.1176 0.4700 0.28956 2017 6 22 57926 0.1195 0.4700 0.28860 2017 6 23 57927 0.1213 0.4700 0.28785 2017 6 24 57928 0.1232 0.4699 0.28722 2017 6 25 57929 0.1250 0.4699 0.28669 2017 6 26 57930 0.1269 0.4697 0.28617 2017 6 27 57931 0.1287 0.4696 0.28562 2017 6 28 57932 0.1305 0.4694 0.28500 2017 6 29 57933 0.1324 0.4692 0.28433 2017 6 30 57934 0.1342 0.4690 0.28365 2017 7 1 57935 0.1360 0.4688 0.28306 2017 7 2 57936 0.1378 0.4685 0.28256 2017 7 3 57937 0.1396 0.4682 0.28212 2017 7 4 57938 0.1414 0.4678 0.28173 2017 7 5 57939 0.1431 0.4675 0.28140 2017 7 6 57940 0.1449 0.4671 0.28119 2017 7 7 57941 0.1467 0.4667 0.28102 2017 7 8 57942 0.1484 0.4662 0.28091 2017 7 9 57943 0.1502 0.4657 0.28075 2017 7 10 57944 0.1519 0.4652 0.28058 2017 7 11 57945 0.1536 0.4647 0.28036 2017 7 12 57946 0.1553 0.4642 0.28005 2017 7 13 57947 0.1570 0.4636 0.27963 2017 7 14 57948 0.1587 0.4630 0.27908 2017 7 15 57949 0.1603 0.4624 0.27843 2017 7 16 57950 0.1620 0.4617 0.27770 2017 7 17 57951 0.1636 0.4610 0.27688 2017 7 18 57952 0.1652 0.4603 0.27599 2017 7 19 57953 0.1668 0.4596 0.27513 2017 7 20 57954 0.1684 0.4589 0.27444 2017 7 21 57955 0.1700 0.4581 0.27396 2017 7 22 57956 0.1715 0.4573 0.27360 2017 7 23 57957 0.1730 0.4565 0.27316 2017 7 24 57958 0.1746 0.4556 0.27258 2017 7 25 57959 0.1761 0.4548 0.27197 2017 7 26 57960 0.1775 0.4539 0.27130 2017 7 27 57961 0.1790 0.4530 0.27060 2017 7 28 57962 0.1804 0.4520 0.26988 2017 7 29 57963 0.1819 0.4511 0.26926 2017 7 30 57964 0.1833 0.4501 0.26867 2017 7 31 57965 0.1846 0.4491 0.26819 2017 8 1 57966 0.1860 0.4481 0.26783 2017 8 2 57967 0.1873 0.4471 0.26764 2017 8 3 57968 0.1886 0.4460 0.26756 2017 8 4 57969 0.1899 0.4449 0.26753 2017 8 5 57970 0.1912 0.4438 0.26746 2017 8 6 57971 0.1925 0.4427 0.26730 2017 8 7 57972 0.1937 0.4416 0.26704 2017 8 8 57973 0.1949 0.4404 0.26664 2017 8 9 57974 0.1961 0.4392 0.26605 2017 8 10 57975 0.1972 0.4380 0.26529 2017 8 11 57976 0.1983 0.4368 0.26444 2017 8 12 57977 0.1994 0.4356 0.26349 2017 8 13 57978 0.2005 0.4344 0.26246 2017 8 14 57979 0.2016 0.4331 0.26139 2017 8 15 57980 0.2026 0.4318 0.26037 2017 8 16 57981 0.2036 0.4305 0.25942 2017 8 17 57982 0.2046 0.4292 0.25864 2017 8 18 57983 0.2055 0.4279 0.25792 2017 8 19 57984 0.2065 0.4266 0.25725 2017 8 20 57985 0.2074 0.4252 0.25651 2017 8 21 57986 0.2082 0.4239 0.25561 2017 8 22 57987 0.2091 0.4225 0.25460 2017 8 23 57988 0.2099 0.4211 0.25346 2017 8 24 57989 0.2107 0.4197 0.25224 2017 8 25 57990 0.2114 0.4183 0.25107 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) 57603 -103.37 0.30 -13.26 0.11 57604 -103.17 0.30 -13.14 0.11 57605 -103.21 0.30 -13.12 0.11 57606 -103.47 0.30 -13.15 0.15 57607 -103.87 0.30 -13.18 0.09 57608 -104.26 0.30 -13.25 0.09 57609 -104.48 0.30 -13.35 0.09 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57603 0.129 0.119 -0.094 0.110 57604 0.125 0.119 -0.075 0.110 57605 0.128 0.119 -0.052 0.110 57606 0.138 0.119 -0.033 0.150 57607 0.147 0.119 -0.014 0.090 57608 0.148 0.119 -0.026 0.090 57609 0.143 0.119 -0.049 0.090 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).