********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 6 October 2016 Vol. XXIX No. 040 ______________________________________________________________________ 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. * * * * As of 06-Oct-2016, Hurricane Matthew is projected to approach well * * east of the Washington DC area, and we anticipate no impacts to the * * availability of the Bulletin A and other EOP results from the USNO * * DC servers at http://maia.usno.navy.mil & ftp://maia.usno.navy.mil. * * However, if the path of Hurricane Matthew unexpectedly turns toward * * the Washington DC area, there may be impacts to the availability; * * in such a case, please obtain the EOP solution from the backup * * servers listed above. * * * * 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 30 57661 0.23404 .00009 0.33264 .00009 -0.277564 0.000007 16 10 1 57662 0.23363 .00009 0.33101 .00009 -0.278980 0.000009 16 10 2 57663 0.23270 .00009 0.32948 .00009 -0.280346 0.000011 16 10 3 57664 0.23135 .00009 0.32787 .00009 -0.281622 0.000014 16 10 4 57665 0.22958 .00009 0.32621 .00009 -0.282810 0.000015 16 10 5 57666 0.22747 .00009 0.32463 .00009 -0.283921 0.000017 16 10 6 57667 0.22530 .00009 0.32299 .00009 -0.285032 0.000019 IERS Final Values MJD x y UT1-UTC " " s 16 8 2 57602 0.2133 0.4481 -0.22583 16 8 3 57603 0.2144 0.4461 -0.22636 16 8 4 57604 0.2158 0.4447 -0.22692 16 8 5 57605 0.2171 0.4433 -0.22758 16 8 6 57606 0.2184 0.4421 -0.22826 16 8 7 57607 0.2194 0.4406 -0.22896 16 8 8 57608 0.2206 0.4391 -0.22967 16 8 9 57609 0.2216 0.4377 -0.23036 16 8 10 57610 0.2226 0.4361 -0.23105 16 8 11 57611 0.2234 0.4343 -0.23163 16 8 12 57612 0.2244 0.4321 -0.23208 16 8 13 57613 0.2254 0.4298 -0.23244 16 8 14 57614 0.2260 0.4275 -0.23273 16 8 15 57615 0.2261 0.4250 -0.23298 16 8 16 57616 0.2265 0.4225 -0.23332 16 8 17 57617 0.2267 0.4202 -0.23379 16 8 18 57618 0.2269 0.4181 -0.23441 16 8 19 57619 0.2273 0.4161 -0.23524 16 8 20 57620 0.2276 0.4143 -0.23622 16 8 21 57621 0.2277 0.4122 -0.23733 16 8 22 57622 0.2279 0.4103 -0.23843 16 8 23 57623 0.2283 0.4079 -0.23953 16 8 24 57624 0.2292 0.4057 -0.24058 16 8 25 57625 0.2303 0.4039 -0.24151 16 8 26 57626 0.2314 0.4020 -0.24232 16 8 27 57627 0.2325 0.3999 -0.24305 16 8 28 57628 0.2338 0.3976 -0.24372 16 8 29 57629 0.2348 0.3958 -0.24433 16 8 30 57630 0.2354 0.3933 -0.24496 16 8 31 57631 0.2360 0.3910 -0.24569 16 9 1 57632 0.2365 0.3892 -0.24645 _______________________________________________________________________ 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 = 0.1063 + 0.0952 cos A - 0.0433 sin A + 0.0239 cos C - 0.0108 sin C y = 0.3703 - 0.0392 cos A - 0.0932 sin A - 0.0108 cos C - 0.0239 sin C UT1-UTC = -0.3114 - 0.00139 (MJD - 57675) - (UT2-UT1) where A = 2*pi*(MJD-57667)/365.25 and C = 2*pi*(MJD-57667)/435. TAI-UTC(MJD 57668) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57667)**0.80 S t = 0.00025 (MJD-57667)**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 10 7 57668 0.2235 0.3212 -0.28605 2016 10 8 57669 0.2219 0.3194 -0.28702 2016 10 9 57670 0.2206 0.3175 -0.28800 2016 10 10 57671 0.2195 0.3157 -0.28906 2016 10 11 57672 0.2185 0.3140 -0.29026 2016 10 12 57673 0.2175 0.3123 -0.29164 2016 10 13 57674 0.2165 0.3106 -0.29322 2016 10 14 57675 0.2154 0.3090 -0.29499 2016 10 15 57676 0.2142 0.3073 -0.29691 2016 10 16 57677 0.2130 0.3057 -0.29889 2016 10 17 57678 0.2119 0.3040 -0.30081 2016 10 18 57679 0.2107 0.3024 -0.30261 2016 10 19 57680 0.2096 0.3009 -0.30427 2016 10 20 57681 0.2084 0.2994 -0.30577 2016 10 21 57682 0.2072 0.2980 -0.30717 2016 10 22 57683 0.2060 0.2966 -0.30854 2016 10 23 57684 0.2047 0.2953 -0.30992 2016 10 24 57685 0.2033 0.2939 -0.31134 2016 10 25 57686 0.2019 0.2926 -0.31282 2016 10 26 57687 0.2004 0.2913 -0.31435 2016 10 27 57688 0.1990 0.2900 -0.31590 2016 10 28 57689 0.1975 0.2887 -0.31744 2016 10 29 57690 0.1961 0.2874 -0.31895 2016 10 30 57691 0.1946 0.2862 -0.32042 2016 10 31 57692 0.1932 0.2850 -0.32182 2016 11 1 57693 0.1917 0.2838 -0.32314 2016 11 2 57694 0.1902 0.2827 -0.32440 2016 11 3 57695 0.1887 0.2815 -0.32560 2016 11 4 57696 0.1871 0.2804 -0.32676 2016 11 5 57697 0.1855 0.2793 -0.32790 2016 11 6 57698 0.1840 0.2783 -0.32908 2016 11 7 57699 0.1824 0.2773 -0.33035 2016 11 8 57700 0.1808 0.2762 -0.33175 2016 11 9 57701 0.1791 0.2753 -0.33332 2016 11 10 57702 0.1775 0.2743 -0.33507 2016 11 11 57703 0.1758 0.2734 -0.33699 2016 11 12 57704 0.1741 0.2725 -0.33901 2016 11 13 57705 0.1724 0.2717 -0.34106 2016 11 14 57706 0.1707 0.2708 -0.34305 2016 11 15 57707 0.1690 0.2700 -0.34490 2016 11 16 57708 0.1672 0.2692 -0.34661 2016 11 17 57709 0.1655 0.2685 -0.34818 2016 11 18 57710 0.1637 0.2678 -0.34967 2016 11 19 57711 0.1619 0.2671 -0.35114 2016 11 20 57712 0.1601 0.2664 -0.35262 2016 11 21 57713 0.1583 0.2658 -0.35415 2016 11 22 57714 0.1565 0.2651 -0.35572 2016 11 23 57715 0.1547 0.2646 -0.35730 2016 11 24 57716 0.1528 0.2640 -0.35888 2016 11 25 57717 0.1510 0.2635 -0.36042 2016 11 26 57718 0.1491 0.2630 -0.36190 2016 11 27 57719 0.1473 0.2625 -0.36331 2016 11 28 57720 0.1454 0.2621 -0.36462 2016 11 29 57721 0.1435 0.2616 -0.36584 2016 11 30 57722 0.1416 0.2613 -0.36697 2016 12 1 57723 0.1397 0.2609 -0.36805 2016 12 2 57724 0.1378 0.2606 -0.36909 2016 12 3 57725 0.1359 0.2603 -0.37016 2016 12 4 57726 0.1340 0.2600 -0.37128 2016 12 5 57727 0.1321 0.2598 -0.37251 2016 12 6 57728 0.1302 0.2596 -0.37389 2016 12 7 57729 0.1283 0.2594 -0.37542 2016 12 8 57730 0.1264 0.2593 -0.37710 2016 12 9 57731 0.1245 0.2592 -0.37890 2016 12 10 57732 0.1225 0.2591 -0.38075 2016 12 11 57733 0.1206 0.2590 -0.38258 2016 12 12 57734 0.1187 0.2590 -0.38432 2016 12 13 57735 0.1168 0.2590 -0.38592 2016 12 14 57736 0.1148 0.2590 -0.38738 2016 12 15 57737 0.1129 0.2591 -0.38874 2016 12 16 57738 0.1110 0.2592 -0.39006 2016 12 17 57739 0.1091 0.2593 -0.39139 2016 12 18 57740 0.1072 0.2595 -0.39277 2016 12 19 57741 0.1053 0.2597 -0.39420 2016 12 20 57742 0.1034 0.2599 -0.39567 2016 12 21 57743 0.1015 0.2601 -0.39716 2016 12 22 57744 0.0996 0.2604 -0.39863 2016 12 23 57745 0.0977 0.2607 -0.40005 2016 12 24 57746 0.0958 0.2610 -0.40142 2016 12 25 57747 0.0940 0.2614 -0.40272 2016 12 26 57748 0.0921 0.2618 -0.40393 2016 12 27 57749 0.0902 0.2622 -0.40508 2016 12 28 57750 0.0884 0.2626 -0.40616 2016 12 29 57751 0.0866 0.2631 -0.40721 2016 12 30 57752 0.0847 0.2636 -0.40827 2016 12 31 57753 0.0829 0.2641 -0.40937 2017 1 1 57754 0.0811 0.2647 0.58944 2017 1 2 57755 0.0793 0.2653 0.58812 2017 1 3 57756 0.0775 0.2659 0.58666 2017 1 4 57757 0.0758 0.2665 0.58507 2017 1 5 57758 0.0740 0.2672 0.58336 2017 1 6 57759 0.0723 0.2679 0.58160 2017 1 7 57760 0.0705 0.2686 0.57984 2017 1 8 57761 0.0688 0.2694 0.57813 2017 1 9 57762 0.0671 0.2702 0.57654 2017 1 10 57763 0.0654 0.2710 0.57506 2017 1 11 57764 0.0638 0.2718 0.57368 2017 1 12 57765 0.0621 0.2727 0.57235 2017 1 13 57766 0.0605 0.2736 0.57101 2017 1 14 57767 0.0588 0.2745 0.56962 2017 1 15 57768 0.0572 0.2754 0.56816 2017 1 16 57769 0.0557 0.2764 0.56665 2017 1 17 57770 0.0541 0.2773 0.56511 2017 1 18 57771 0.0526 0.2784 0.56358 2017 1 19 57772 0.0510 0.2794 0.56209 2017 1 20 57773 0.0495 0.2804 0.56066 2017 1 21 57774 0.0480 0.2815 0.55932 2017 1 22 57775 0.0466 0.2826 0.55806 2017 1 23 57776 0.0451 0.2838 0.55693 2017 1 24 57777 0.0437 0.2849 0.55587 2017 1 25 57778 0.0423 0.2861 0.55485 2017 1 26 57779 0.0409 0.2873 0.55382 2017 1 27 57780 0.0396 0.2885 0.55275 2017 1 28 57781 0.0383 0.2897 0.55158 2017 1 29 57782 0.0369 0.2910 0.55028 2017 1 30 57783 0.0357 0.2922 0.54882 2017 1 31 57784 0.0344 0.2935 0.54722 2017 2 1 57785 0.0332 0.2948 0.54548 2017 2 2 57786 0.0320 0.2962 0.54368 2017 2 3 57787 0.0308 0.2975 0.54187 2017 2 4 57788 0.0296 0.2989 0.54011 2017 2 5 57789 0.0285 0.3003 0.53844 2017 2 6 57790 0.0274 0.3017 0.53688 2017 2 7 57791 0.0263 0.3031 0.53541 2017 2 8 57792 0.0252 0.3046 0.53399 2017 2 9 57793 0.0242 0.3060 0.53256 2017 2 10 57794 0.0232 0.3075 0.53107 2017 2 11 57795 0.0222 0.3090 0.52949 2017 2 12 57796 0.0213 0.3105 0.52782 2017 2 13 57797 0.0204 0.3120 0.52610 2017 2 14 57798 0.0195 0.3135 0.52434 2017 2 15 57799 0.0186 0.3151 0.52260 2017 2 16 57800 0.0178 0.3166 0.52091 2017 2 17 57801 0.0170 0.3182 0.51929 2017 2 18 57802 0.0162 0.3198 0.51776 2017 2 19 57803 0.0155 0.3214 0.51631 2017 2 20 57804 0.0148 0.3230 0.51493 2017 2 21 57805 0.0141 0.3246 0.51360 2017 2 22 57806 0.0135 0.3263 0.51228 2017 2 23 57807 0.0129 0.3279 0.51091 2017 2 24 57808 0.0123 0.3295 0.50947 2017 2 25 57809 0.0117 0.3312 0.50790 2017 2 26 57810 0.0112 0.3329 0.50616 2017 2 27 57811 0.0107 0.3345 0.50425 2017 2 28 57812 0.0102 0.3362 0.50218 2017 3 1 57813 0.0098 0.3379 0.50002 2017 3 2 57814 0.0094 0.3396 0.49784 2017 3 3 57815 0.0090 0.3413 0.49572 2017 3 4 57816 0.0087 0.3430 0.49370 2017 3 5 57817 0.0084 0.3447 0.49180 2017 3 6 57818 0.0081 0.3465 0.49002 2017 3 7 57819 0.0078 0.3482 0.48832 2017 3 8 57820 0.0076 0.3499 0.48662 2017 3 9 57821 0.0075 0.3516 0.48489 2017 3 10 57822 0.0073 0.3534 0.48308 2017 3 11 57823 0.0072 0.3551 0.48118 2017 3 12 57824 0.0071 0.3569 0.47920 2017 3 13 57825 0.0071 0.3586 0.47717 2017 3 14 57826 0.0070 0.3603 0.47514 2017 3 15 57827 0.0071 0.3621 0.47314 2017 3 16 57828 0.0071 0.3638 0.47121 2017 3 17 57829 0.0072 0.3656 0.46938 2017 3 18 57830 0.0073 0.3673 0.46763 2017 3 19 57831 0.0074 0.3690 0.46598 2017 3 20 57832 0.0076 0.3708 0.46440 2017 3 21 57833 0.0078 0.3725 0.46285 2017 3 22 57834 0.0080 0.3742 0.46129 2017 3 23 57835 0.0083 0.3760 0.45967 2017 3 24 57836 0.0086 0.3777 0.45795 2017 3 25 57837 0.0089 0.3794 0.45607 2017 3 26 57838 0.0093 0.3811 0.45402 2017 3 27 57839 0.0097 0.3828 0.45180 2017 3 28 57840 0.0101 0.3845 0.44944 2017 3 29 57841 0.0106 0.3862 0.44702 2017 3 30 57842 0.0111 0.3879 0.44462 2017 3 31 57843 0.0116 0.3896 0.44233 2017 4 1 57844 0.0121 0.3912 0.44019 2017 4 2 57845 0.0127 0.3929 0.43820 2017 4 3 57846 0.0133 0.3946 0.43632 2017 4 4 57847 0.0139 0.3962 0.43449 2017 4 5 57848 0.0146 0.3978 0.43266 2017 4 6 57849 0.0153 0.3995 0.43077 2017 4 7 57850 0.0160 0.4011 0.42882 2017 4 8 57851 0.0168 0.4027 0.42678 2017 4 9 57852 0.0176 0.4043 0.42470 2017 4 10 57853 0.0184 0.4058 0.42259 2017 4 11 57854 0.0192 0.4074 0.42051 2017 4 12 57855 0.0201 0.4090 0.41848 2017 4 13 57856 0.0210 0.4105 0.41654 2017 4 14 57857 0.0219 0.4120 0.41470 2017 4 15 57858 0.0229 0.4135 0.41297 2017 4 16 57859 0.0239 0.4150 0.41134 2017 4 17 57860 0.0249 0.4165 0.40981 2017 4 18 57861 0.0259 0.4180 0.40833 2017 4 19 57862 0.0270 0.4194 0.40688 2017 4 20 57863 0.0281 0.4209 0.40541 2017 4 21 57864 0.0292 0.4223 0.40387 2017 4 22 57865 0.0303 0.4237 0.40221 2017 4 23 57866 0.0315 0.4251 0.40039 2017 4 24 57867 0.0326 0.4264 0.39842 2017 4 25 57868 0.0339 0.4278 0.39633 2017 4 26 57869 0.0351 0.4291 0.39421 2017 4 27 57870 0.0363 0.4304 0.39214 2017 4 28 57871 0.0376 0.4317 0.39018 2017 4 29 57872 0.0389 0.4330 0.38837 2017 4 30 57873 0.0403 0.4342 0.38668 2017 5 1 57874 0.0416 0.4355 0.38505 2017 5 2 57875 0.0430 0.4367 0.38342 2017 5 3 57876 0.0444 0.4379 0.38173 2017 5 4 57877 0.0458 0.4390 0.37998 2017 5 5 57878 0.0472 0.4402 0.37815 2017 5 6 57879 0.0487 0.4413 0.37630 2017 5 7 57880 0.0501 0.4424 0.37444 2017 5 8 57881 0.0516 0.4435 0.37263 2017 5 9 57882 0.0531 0.4445 0.37087 2017 5 10 57883 0.0546 0.4456 0.36920 2017 5 11 57884 0.0562 0.4466 0.36764 2017 5 12 57885 0.0578 0.4476 0.36623 2017 5 13 57886 0.0593 0.4485 0.36494 2017 5 14 57887 0.0609 0.4495 0.36374 2017 5 15 57888 0.0625 0.4504 0.36259 2017 5 16 57889 0.0642 0.4513 0.36143 2017 5 17 57890 0.0658 0.4521 0.36022 2017 5 18 57891 0.0675 0.4529 0.35898 2017 5 19 57892 0.0691 0.4538 0.35766 2017 5 20 57893 0.0708 0.4545 0.35612 2017 5 21 57894 0.0725 0.4553 0.35458 2017 5 22 57895 0.0742 0.4560 0.35284 2017 5 23 57896 0.0759 0.4567 0.35094 2017 5 24 57897 0.0777 0.4574 0.34900 2017 5 25 57898 0.0794 0.4581 0.34719 2017 5 26 57899 0.0811 0.4587 0.34555 2017 5 27 57900 0.0829 0.4593 0.34404 2017 5 28 57901 0.0847 0.4599 0.34268 2017 5 29 57902 0.0865 0.4604 0.34149 2017 5 30 57903 0.0883 0.4610 0.34037 2017 5 31 57904 0.0900 0.4614 0.33910 2017 6 1 57905 0.0919 0.4619 0.33781 2017 6 2 57906 0.0937 0.4623 0.33653 2017 6 3 57907 0.0955 0.4628 0.33523 2017 6 4 57908 0.0973 0.4631 0.33403 2017 6 5 57909 0.0991 0.4635 0.33291 2017 6 6 57910 0.1010 0.4638 0.33193 2017 6 7 57911 0.1028 0.4641 0.33104 2017 6 8 57912 0.1046 0.4644 0.33044 2017 6 9 57913 0.1065 0.4646 0.32993 2017 6 10 57914 0.1083 0.4648 0.32953 2017 6 11 57915 0.1102 0.4650 0.32917 2017 6 12 57916 0.1120 0.4652 0.32884 2017 6 13 57917 0.1139 0.4653 0.32846 2017 6 14 57918 0.1157 0.4654 0.32796 2017 6 15 57919 0.1176 0.4655 0.32741 2017 6 16 57920 0.1194 0.4655 0.32660 2017 6 17 57921 0.1213 0.4655 0.32572 2017 6 18 57922 0.1231 0.4655 0.32461 2017 6 19 57923 0.1250 0.4655 0.32339 2017 6 20 57924 0.1268 0.4654 0.32217 2017 6 21 57925 0.1287 0.4653 0.32107 2017 6 22 57926 0.1305 0.4652 0.31994 2017 6 23 57927 0.1323 0.4650 0.31917 2017 6 24 57928 0.1342 0.4648 0.31852 2017 6 25 57929 0.1360 0.4646 0.31796 2017 6 26 57930 0.1378 0.4644 0.31743 2017 6 27 57931 0.1396 0.4641 0.31680 2017 6 28 57932 0.1414 0.4638 0.31616 2017 6 29 57933 0.1432 0.4635 0.31548 2017 6 30 57934 0.1450 0.4631 0.31465 2017 7 1 57935 0.1468 0.4628 0.31383 2017 7 2 57936 0.1485 0.4624 0.31300 2017 7 3 57937 0.1503 0.4619 0.31221 2017 7 4 57938 0.1520 0.4615 0.31146 2017 7 5 57939 0.1538 0.4610 0.31076 2017 7 6 57940 0.1555 0.4605 0.31014 2017 7 7 57941 0.1572 0.4599 0.30965 2017 7 8 57942 0.1589 0.4594 0.30919 2017 7 9 57943 0.1606 0.4588 0.30875 2017 7 10 57944 0.1623 0.4582 0.30825 2017 7 11 57945 0.1640 0.4575 0.30769 2017 7 12 57946 0.1656 0.4569 0.30713 2017 7 13 57947 0.1673 0.4562 0.30633 2017 7 14 57948 0.1689 0.4554 0.30543 2017 7 15 57949 0.1705 0.4547 0.30428 2017 7 16 57950 0.1721 0.4539 0.30308 2017 7 17 57951 0.1737 0.4531 0.30176 2017 7 18 57952 0.1752 0.4523 0.30041 2017 7 19 57953 0.1768 0.4515 0.29915 2017 7 20 57954 0.1783 0.4506 0.29794 2017 7 21 57955 0.1798 0.4498 0.29683 2017 7 22 57956 0.1813 0.4488 0.29570 2017 7 23 57957 0.1828 0.4479 0.29458 2017 7 24 57958 0.1842 0.4470 0.29342 2017 7 25 57959 0.1856 0.4460 0.29219 2017 7 26 57960 0.1870 0.4450 0.29091 2017 7 27 57961 0.1884 0.4440 0.28964 2017 7 28 57962 0.1898 0.4429 0.28836 2017 7 29 57963 0.1912 0.4419 0.28717 2017 7 30 57964 0.1925 0.4408 0.28614 2017 7 31 57965 0.1938 0.4397 0.28525 2017 8 1 57966 0.1951 0.4386 0.28452 2017 8 2 57967 0.1963 0.4375 0.28398 2017 8 3 57968 0.1976 0.4363 0.28362 2017 8 4 57969 0.1988 0.4351 0.28324 2017 8 5 57970 0.2000 0.4339 0.28299 2017 8 6 57971 0.2012 0.4327 0.28267 2017 8 7 57972 0.2023 0.4315 0.28220 2017 8 8 57973 0.2034 0.4302 0.28165 2017 8 9 57974 0.2045 0.4290 0.28097 2017 8 10 57975 0.2056 0.4277 0.28016 2017 8 11 57976 0.2066 0.4264 0.27929 2017 8 12 57977 0.2077 0.4251 0.27833 2017 8 13 57978 0.2086 0.4238 0.27729 2017 8 14 57979 0.2096 0.4224 0.27625 2017 8 15 57980 0.2106 0.4211 0.27525 2017 8 16 57981 0.2115 0.4197 0.27433 2017 8 17 57982 0.2124 0.4183 0.27342 2017 8 18 57983 0.2132 0.4169 0.27257 2017 8 19 57984 0.2140 0.4155 0.27172 2017 8 20 57985 0.2149 0.4141 0.27075 2017 8 21 57986 0.2156 0.4127 0.26968 2017 8 22 57987 0.2164 0.4112 0.26857 2017 8 23 57988 0.2171 0.4098 0.26738 2017 8 24 57989 0.2178 0.4083 0.26620 2017 8 25 57990 0.2185 0.4068 0.26499 2017 8 26 57991 0.2191 0.4054 0.26382 2017 8 27 57992 0.2197 0.4039 0.26272 2017 8 28 57993 0.2203 0.4024 0.26177 2017 8 29 57994 0.2208 0.4009 0.26094 2017 8 30 57995 0.2213 0.3993 0.26025 2017 8 31 57996 0.2218 0.3978 0.25971 2017 9 1 57997 0.2223 0.3963 0.25928 2017 9 2 57998 0.2227 0.3947 0.25885 2017 9 3 57999 0.2231 0.3932 0.25836 2017 9 4 58000 0.2235 0.3917 0.25782 2017 9 5 58001 0.2238 0.3901 0.25714 2017 9 6 58002 0.2241 0.3885 0.25639 2017 9 7 58003 0.2244 0.3870 0.25542 2017 9 8 58004 0.2247 0.3854 0.25434 2017 9 9 58005 0.2249 0.3838 0.25315 2017 9 10 58006 0.2251 0.3823 0.25187 2017 9 11 58007 0.2252 0.3807 0.25058 2017 9 12 58008 0.2254 0.3791 0.24935 2017 9 13 58009 0.2255 0.3775 0.24820 2017 9 14 58010 0.2255 0.3760 0.24708 2017 9 15 58011 0.2256 0.3744 0.24607 2017 9 16 58012 0.2256 0.3728 0.24501 2017 9 17 58013 0.2256 0.3712 0.24389 2017 9 18 58014 0.2255 0.3697 0.24265 2017 9 19 58015 0.2254 0.3681 0.24132 2017 9 20 58016 0.2253 0.3665 0.23988 2017 9 21 58017 0.2252 0.3650 0.23840 2017 9 22 58018 0.2250 0.3634 0.23696 2017 9 23 58019 0.2248 0.3618 0.23565 2017 9 24 58020 0.2246 0.3603 0.23446 2017 9 25 58021 0.2243 0.3587 0.23335 2017 9 26 58022 0.2240 0.3572 0.23229 2017 9 27 58023 0.2237 0.3556 0.23125 2017 9 28 58024 0.2234 0.3541 0.23026 2017 9 29 58025 0.2230 0.3525 0.22923 2017 9 30 58026 0.2226 0.3510 0.22816 2017 10 1 58027 0.2222 0.3495 0.22690 2017 10 2 58028 0.2217 0.3480 0.22554 2017 10 3 58029 0.2212 0.3465 0.22402 2017 10 4 58030 0.2207 0.3450 0.22235 2017 10 5 58031 0.2202 0.3435 0.22053 2017 10 6 58032 0.2196 0.3420 0.21861 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) 57645 -105.76 0.14 -13.15 0.07 57646 -105.85 0.14 -13.21 0.07 57647 -105.92 0.14 -13.00 0.07 57648 -105.94 0.30 -12.65 0.15 57649 -106.03 0.18 -12.40 0.06 57650 -106.29 0.18 -12.37 0.06 57651 -106.67 0.18 -12.45 0.06 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 57602 -103.8 -13.4 57603 -103.4 -13.3 57604 -103.2 -13.2 57605 -103.2 -13.2 57606 -103.5 -13.2 57607 -103.9 -13.3 57608 -104.3 -13.3 57609 -104.5 -13.4 57610 -104.5 -13.5 57611 -104.5 -13.5 57612 -104.7 -13.4 57613 -105.0 -13.1 57614 -105.3 -13.0 57615 -105.5 -13.0 57616 -105.5 -13.3 57617 -105.4 -13.6 57618 -105.2 -13.4 57619 -105.1 -13.2 57620 -105.3 -13.0 57621 -105.6 -12.8 57622 -105.8 -12.9 57623 -105.9 -13.0 57624 -105.9 -13.1 57625 -105.9 -13.2 57626 -106.1 -13.2 57627 -106.3 -13.3 57628 -106.4 -13.5 57629 -106.3 -13.5 57630 -105.9 -13.5 57631 -105.6 -13.3 57632 -105.4 -13.2 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57645 0.197 0.056 -0.134 0.070 57646 0.169 0.056 -0.125 0.070 57647 0.138 0.056 -0.101 0.070 57648 0.102 0.119 -0.085 0.150 57649 0.057 0.072 -0.069 0.060 57650 0.009 0.072 -0.047 0.060 57651 -0.037 0.072 -0.018 0.060 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 57602 0.11 -0.05 57603 0.12 -0.13 57604 0.11 -0.13 57605 0.13 -0.13 57606 0.13 -0.08 57607 0.13 -0.13 57608 0.13 -0.08 57609 0.14 -0.10 57610 0.14 -0.14 57611 0.13 -0.19 57612 0.11 -0.27 57613 0.11 -0.21 57614 0.12 -0.27 57615 0.10 -0.23 57616 0.09 -0.31 57617 0.10 -0.39 57618 0.16 -0.16 57619 0.23 -0.15 57620 0.21 -0.21 57621 0.18 -0.13 57622 0.17 -0.16 57623 0.15 -0.12 57624 0.14 -0.13 57625 0.14 -0.21 57626 0.12 -0.16 57627 0.13 -0.15 57628 0.14 -0.21 57629 0.12 -0.15 57630 0.14 -0.20 57631 0.11 -0.15 57632 0.10 -0.22 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).