********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 August 2016 Vol. XXIX No. 032 ______________________________________________________________________ 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 5 57605 0.21715 .00009 0.44334 .00009 -0.227580 0.000006 16 8 6 57606 0.21838 .00009 0.44204 .00010 -0.228264 0.000006 16 8 7 57607 0.21948 .00009 0.44057 .00009 -0.228965 0.000007 16 8 8 57608 0.22058 .00009 0.43909 .00009 -0.229677 0.000005 16 8 9 57609 0.22166 .00009 0.43763 .00010 -0.230383 0.000005 16 8 10 57610 0.22265 .00009 0.43606 .00009 -0.231021 0.000005 16 8 11 57611 0.22347 .00009 0.43435 .00009 -0.231614 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 = 0.1038 + 0.0887 cos A + 0.0696 sin A + 0.0323 cos C - 0.0031 sin C y = 0.3723 + 0.0671 cos A - 0.0845 sin A - 0.0031 cos C - 0.0323 sin C UT1-UTC = -0.2525 - 0.00143 (MJD - 57619) - (UT2-UT1) where A = 2*pi*(MJD-57611)/365.25 and C = 2*pi*(MJD-57611)/435. TAI-UTC(MJD 57612) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57611)**0.80 S t = 0.00025 (MJD-57611)**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 12 57612 0.2244 0.4326 -0.23209 2016 8 13 57613 0.2253 0.4308 -0.23247 2016 8 14 57614 0.2262 0.4290 -0.23281 2016 8 15 57615 0.2271 0.4272 -0.23315 2016 8 16 57616 0.2281 0.4254 -0.23357 2016 8 17 57617 0.2291 0.4237 -0.23409 2016 8 18 57618 0.2300 0.4220 -0.23477 2016 8 19 57619 0.2308 0.4203 -0.23563 2016 8 20 57620 0.2316 0.4185 -0.23666 2016 8 21 57621 0.2324 0.4166 -0.23782 2016 8 22 57622 0.2331 0.4148 -0.23904 2016 8 23 57623 0.2339 0.4130 -0.24023 2016 8 24 57624 0.2346 0.4111 -0.24137 2016 8 25 57625 0.2353 0.4093 -0.24241 2016 8 26 57626 0.2359 0.4074 -0.24332 2016 8 27 57627 0.2366 0.4056 -0.24414 2016 8 28 57628 0.2372 0.4038 -0.24491 2016 8 29 57629 0.2377 0.4019 -0.24569 2016 8 30 57630 0.2382 0.4000 -0.24650 2016 8 31 57631 0.2387 0.3981 -0.24737 2016 9 1 57632 0.2391 0.3962 -0.24828 2016 9 2 57633 0.2395 0.3943 -0.24923 2016 9 3 57634 0.2399 0.3923 -0.25020 2016 9 4 57635 0.2402 0.3904 -0.25116 2016 9 5 57636 0.2406 0.3885 -0.25210 2016 9 6 57637 0.2409 0.3866 -0.25298 2016 9 7 57638 0.2411 0.3846 -0.25381 2016 9 8 57639 0.2413 0.3827 -0.25458 2016 9 9 57640 0.2415 0.3808 -0.25532 2016 9 10 57641 0.2416 0.3788 -0.25604 2016 9 11 57642 0.2417 0.3769 -0.25678 2016 9 12 57643 0.2418 0.3749 -0.25760 2016 9 13 57644 0.2418 0.3730 -0.25855 2016 9 14 57645 0.2418 0.3710 -0.25966 2016 9 15 57646 0.2418 0.3691 -0.26096 2016 9 16 57647 0.2417 0.3671 -0.26246 2016 9 17 57648 0.2416 0.3652 -0.26413 2016 9 18 57649 0.2415 0.3633 -0.26589 2016 9 19 57650 0.2413 0.3613 -0.26765 2016 9 20 57651 0.2411 0.3594 -0.26933 2016 9 21 57652 0.2409 0.3574 -0.27087 2016 9 22 57653 0.2406 0.3555 -0.27226 2016 9 23 57654 0.2403 0.3536 -0.27353 2016 9 24 57655 0.2399 0.3517 -0.27474 2016 9 25 57656 0.2395 0.3497 -0.27595 2016 9 26 57657 0.2391 0.3478 -0.27720 2016 9 27 57658 0.2387 0.3459 -0.27854 2016 9 28 57659 0.2382 0.3440 -0.27998 2016 9 29 57660 0.2377 0.3422 -0.28149 2016 9 30 57661 0.2371 0.3403 -0.28308 2016 10 1 57662 0.2365 0.3384 -0.28469 2016 10 2 57663 0.2359 0.3365 -0.28630 2016 10 3 57664 0.2352 0.3347 -0.28789 2016 10 4 57665 0.2345 0.3328 -0.28943 2016 10 5 57666 0.2338 0.3310 -0.29091 2016 10 6 57667 0.2331 0.3292 -0.29233 2016 10 7 57668 0.2323 0.3274 -0.29371 2016 10 8 57669 0.2315 0.3256 -0.29507 2016 10 9 57670 0.2306 0.3238 -0.29645 2016 10 10 57671 0.2297 0.3220 -0.29790 2016 10 11 57672 0.2288 0.3203 -0.29946 2016 10 12 57673 0.2279 0.3185 -0.30119 2016 10 13 57674 0.2269 0.3168 -0.30311 2016 10 14 57675 0.2259 0.3151 -0.30522 2016 10 15 57676 0.2248 0.3134 -0.30746 2016 10 16 57677 0.2238 0.3117 -0.30976 2016 10 17 57678 0.2227 0.3100 -0.31202 2016 10 18 57679 0.2215 0.3084 -0.31416 2016 10 19 57680 0.2204 0.3067 -0.31613 2016 10 20 57681 0.2192 0.3051 -0.31793 2016 10 21 57682 0.2180 0.3035 -0.31962 2016 10 22 57683 0.2167 0.3019 -0.32125 2016 10 23 57684 0.2155 0.3004 -0.32287 2016 10 24 57685 0.2142 0.2988 -0.32453 2016 10 25 57686 0.2128 0.2973 -0.32624 2016 10 26 57687 0.2115 0.2958 -0.32799 2016 10 27 57688 0.2101 0.2943 -0.32978 2016 10 28 57689 0.2087 0.2929 -0.33158 2016 10 29 57690 0.2073 0.2914 -0.33337 2016 10 30 57691 0.2058 0.2900 -0.33510 2016 10 31 57692 0.2043 0.2886 -0.33678 2016 11 1 57693 0.2028 0.2872 -0.33837 2016 11 2 57694 0.2013 0.2859 -0.33989 2016 11 3 57695 0.1998 0.2846 -0.34133 2016 11 4 57696 0.1982 0.2833 -0.34273 2016 11 5 57697 0.1966 0.2820 -0.34413 2016 11 6 57698 0.1950 0.2807 -0.34556 2016 11 7 57699 0.1933 0.2795 -0.34708 2016 11 8 57700 0.1917 0.2783 -0.34872 2016 11 9 57701 0.1900 0.2771 -0.35053 2016 11 10 57702 0.1883 0.2760 -0.35251 2016 11 11 57703 0.1866 0.2748 -0.35466 2016 11 12 57704 0.1848 0.2737 -0.35692 2016 11 13 57705 0.1831 0.2727 -0.35920 2016 11 14 57706 0.1813 0.2716 -0.36141 2016 11 15 57707 0.1795 0.2706 -0.36349 2016 11 16 57708 0.1777 0.2696 -0.36540 2016 11 17 57709 0.1758 0.2686 -0.36717 2016 11 18 57710 0.1740 0.2677 -0.36884 2016 11 19 57711 0.1721 0.2668 -0.37048 2016 11 20 57712 0.1703 0.2659 -0.37213 2016 11 21 57713 0.1684 0.2651 -0.37381 2016 11 22 57714 0.1665 0.2642 -0.37553 2016 11 23 57715 0.1646 0.2635 -0.37727 2016 11 24 57716 0.1626 0.2627 -0.37902 2016 11 25 57717 0.1607 0.2620 -0.38074 2016 11 26 57718 0.1587 0.2613 -0.38240 2016 11 27 57719 0.1568 0.2606 -0.38399 2016 11 28 57720 0.1548 0.2599 -0.38547 2016 11 29 57721 0.1528 0.2593 -0.38686 2016 11 30 57722 0.1508 0.2587 -0.38817 2016 12 1 57723 0.1488 0.2582 -0.38941 2016 12 2 57724 0.1468 0.2577 -0.39062 2016 12 3 57725 0.1448 0.2572 -0.39184 2016 12 4 57726 0.1428 0.2567 -0.39311 2016 12 5 57727 0.1407 0.2563 -0.39449 2016 12 6 57728 0.1387 0.2559 -0.39600 2016 12 7 57729 0.1366 0.2555 -0.39766 2016 12 8 57730 0.1346 0.2552 -0.39947 2016 12 9 57731 0.1325 0.2549 -0.40139 2016 12 10 57732 0.1305 0.2546 -0.40337 2016 12 11 57733 0.1284 0.2544 -0.40534 2016 12 12 57734 0.1263 0.2541 -0.40721 2016 12 13 57735 0.1243 0.2540 -0.40895 2016 12 14 57736 0.1222 0.2538 -0.41056 2016 12 15 57737 0.1201 0.2537 -0.41206 2016 12 16 57738 0.1181 0.2536 -0.41352 2016 12 17 57739 0.1160 0.2536 -0.41499 2016 12 18 57740 0.1139 0.2536 -0.41651 2016 12 19 57741 0.1119 0.2536 -0.41807 2016 12 20 57742 0.1098 0.2536 -0.41966 2016 12 21 57743 0.1078 0.2537 -0.42126 2016 12 22 57744 0.1057 0.2538 -0.42284 2016 12 23 57745 0.1036 0.2539 -0.42438 2016 12 24 57746 0.1016 0.2541 -0.42584 2016 12 25 57747 0.0995 0.2543 -0.42723 2016 12 26 57748 0.0975 0.2545 -0.42852 2016 12 27 57749 0.0955 0.2548 -0.42974 2016 12 28 57750 0.0934 0.2551 -0.43089 2016 12 29 57751 0.0914 0.2554 -0.43201 2016 12 30 57752 0.0894 0.2558 -0.43314 2016 12 31 57753 0.0874 0.2562 -0.43431 2017 1 1 57754 0.0854 0.2566 0.56443 2017 1 2 57755 0.0834 0.2570 0.56304 2017 1 3 57756 0.0815 0.2575 0.56151 2017 1 4 57757 0.0795 0.2580 0.55984 2017 1 5 57758 0.0775 0.2586 0.55806 2017 1 6 57759 0.0756 0.2591 0.55621 2017 1 7 57760 0.0737 0.2597 0.55436 2017 1 8 57761 0.0717 0.2604 0.55257 2017 1 9 57762 0.0698 0.2610 0.55087 2017 1 10 57763 0.0680 0.2617 0.54929 2017 1 11 57764 0.0661 0.2624 0.54781 2017 1 12 57765 0.0642 0.2632 0.54638 2017 1 13 57766 0.0624 0.2639 0.54493 2017 1 14 57767 0.0605 0.2647 0.54343 2017 1 15 57768 0.0587 0.2656 0.54186 2017 1 16 57769 0.0569 0.2664 0.54023 2017 1 17 57770 0.0551 0.2673 0.53858 2017 1 18 57771 0.0534 0.2682 0.53693 2017 1 19 57772 0.0516 0.2692 0.53532 2017 1 20 57773 0.0499 0.2701 0.53377 2017 1 21 57774 0.0482 0.2711 0.53231 2017 1 22 57775 0.0465 0.2721 0.53093 2017 1 23 57776 0.0449 0.2732 0.52964 2017 1 24 57777 0.0432 0.2743 0.52841 2017 1 25 57778 0.0416 0.2754 0.52721 2017 1 26 57779 0.0400 0.2765 0.52602 2017 1 27 57780 0.0384 0.2776 0.52478 2017 1 28 57781 0.0369 0.2788 0.52345 2017 1 29 57782 0.0353 0.2800 0.52199 2017 1 30 57783 0.0338 0.2812 0.52038 2017 1 31 57784 0.0323 0.2825 0.51862 2017 2 1 57785 0.0309 0.2837 0.51674 2017 2 2 57786 0.0294 0.2850 0.51480 2017 2 3 57787 0.0280 0.2863 0.51286 2017 2 4 57788 0.0266 0.2876 0.51097 2017 2 5 57789 0.0252 0.2890 0.50919 2017 2 6 57790 0.0239 0.2904 0.50753 2017 2 7 57791 0.0226 0.2918 0.50597 2017 2 8 57792 0.0213 0.2932 0.50448 2017 2 9 57793 0.0201 0.2946 0.50300 2017 2 10 57794 0.0188 0.2961 0.50148 2017 2 11 57795 0.0176 0.2975 0.49989 2017 2 12 57796 0.0164 0.2990 0.49825 2017 2 13 57797 0.0153 0.3005 0.49658 2017 2 14 57798 0.0142 0.3021 0.49491 2017 2 15 57799 0.0131 0.3036 0.49329 2017 2 16 57800 0.0120 0.3052 0.49175 2017 2 17 57801 0.0110 0.3067 0.49030 2017 2 18 57802 0.0100 0.3083 0.48893 2017 2 19 57803 0.0090 0.3099 0.48764 2017 2 20 57804 0.0081 0.3116 0.48640 2017 2 21 57805 0.0072 0.3132 0.48518 2017 2 22 57806 0.0063 0.3149 0.48394 2017 2 23 57807 0.0055 0.3165 0.48265 2017 2 24 57808 0.0046 0.3182 0.48127 2017 2 25 57809 0.0039 0.3199 0.47976 2017 2 26 57810 0.0031 0.3216 0.47809 2017 2 27 57811 0.0024 0.3233 0.47625 2017 2 28 57812 0.0017 0.3250 0.47426 2017 3 1 57813 0.0010 0.3268 0.47217 2017 3 2 57814 0.0004 0.3285 0.47006 2017 3 3 57815 -0.0002 0.3303 0.46799 2017 3 4 57816 -0.0007 0.3320 0.46601 2017 3 5 57817 -0.0013 0.3338 0.46414 2017 3 6 57818 -0.0018 0.3356 0.46239 2017 3 7 57819 -0.0022 0.3374 0.46072 2017 3 8 57820 -0.0027 0.3392 0.45907 2017 3 9 57821 -0.0031 0.3410 0.45738 2017 3 10 57822 -0.0034 0.3428 0.45559 2017 3 11 57823 -0.0038 0.3446 0.45368 2017 3 12 57824 -0.0040 0.3464 0.45164 2017 3 13 57825 -0.0043 0.3483 0.44948 2017 3 14 57826 -0.0045 0.3501 0.44727 2017 3 15 57827 -0.0047 0.3519 0.44503 2017 3 16 57828 -0.0049 0.3538 0.44283 2017 3 17 57829 -0.0050 0.3556 0.44070 2017 3 18 57830 -0.0051 0.3575 0.43866 2017 3 19 57831 -0.0052 0.3593 0.43669 2017 3 20 57832 -0.0052 0.3611 0.43478 2017 3 21 57833 -0.0052 0.3630 0.43290 2017 3 22 57834 -0.0052 0.3648 0.43107 2017 3 23 57835 -0.0051 0.3667 0.42913 2017 3 24 57836 -0.0050 0.3685 0.42708 2017 3 25 57837 -0.0048 0.3704 0.42478 2017 3 26 57838 -0.0047 0.3722 0.42233 2017 3 27 57839 -0.0045 0.3740 0.41964 2017 3 28 57840 -0.0042 0.3759 0.41676 2017 3 29 57841 -0.0040 0.3777 0.41384 2017 3 30 57842 -0.0036 0.3795 0.41089 2017 3 31 57843 -0.0033 0.3814 0.40804 2017 4 1 57844 -0.0029 0.3832 0.40526 2017 4 2 57845 -0.0025 0.3850 0.40264 2017 4 3 57846 -0.0021 0.3868 0.40014 2017 4 4 57847 -0.0016 0.3886 0.39772 2017 4 5 57848 -0.0011 0.3904 0.39534 2017 4 6 57849 -0.0006 0.3922 0.39298 2017 4 7 57850 0.0000 0.3939 0.39055 2017 4 8 57851 0.0006 0.3957 0.38810 2017 4 9 57852 0.0012 0.3975 0.38568 2017 4 10 57853 0.0019 0.3992 0.38330 2017 4 11 57854 0.0025 0.4010 0.38100 2017 4 12 57855 0.0033 0.4027 0.37887 2017 4 13 57856 0.0040 0.4044 0.37691 2017 4 14 57857 0.0048 0.4061 0.37499 2017 4 15 57858 0.0056 0.4078 0.37328 2017 4 16 57859 0.0065 0.4095 0.37163 2017 4 17 57860 0.0073 0.4112 0.36996 2017 4 18 57861 0.0082 0.4128 0.36835 2017 4 19 57862 0.0092 0.4145 0.36672 2017 4 20 57863 0.0101 0.4161 0.36504 2017 4 21 57864 0.0111 0.4177 0.36335 2017 4 22 57865 0.0121 0.4193 0.36150 2017 4 23 57866 0.0132 0.4209 0.35947 2017 4 24 57867 0.0142 0.4225 0.35727 2017 4 25 57868 0.0153 0.4240 0.35496 2017 4 26 57869 0.0164 0.4256 0.35262 2017 4 27 57870 0.0176 0.4271 0.35027 2017 4 28 57871 0.0188 0.4286 0.34805 2017 4 29 57872 0.0200 0.4301 0.34601 2017 4 30 57873 0.0212 0.4315 0.34405 2017 5 1 57874 0.0225 0.4330 0.34219 2017 5 2 57875 0.0237 0.4344 0.34045 2017 5 3 57876 0.0250 0.4358 0.33873 2017 5 4 57877 0.0264 0.4372 0.33701 2017 5 5 57878 0.0277 0.4386 0.33521 2017 5 6 57879 0.0291 0.4399 0.33338 2017 5 7 57880 0.0305 0.4413 0.33153 2017 5 8 57881 0.0319 0.4426 0.32976 2017 5 9 57882 0.0333 0.4438 0.32809 2017 5 10 57883 0.0348 0.4451 0.32656 2017 5 11 57884 0.0363 0.4463 0.32523 2017 5 12 57885 0.0378 0.4476 0.32410 2017 5 13 57886 0.0393 0.4488 0.32312 2017 5 14 57887 0.0408 0.4499 0.32220 2017 5 15 57888 0.0424 0.4511 0.32142 2017 5 16 57889 0.0440 0.4522 0.32065 2017 5 17 57890 0.0456 0.4533 0.31993 2017 5 18 57891 0.0472 0.4544 0.31909 2017 5 19 57892 0.0488 0.4554 0.31815 2017 5 20 57893 0.0505 0.4565 0.31702 2017 5 21 57894 0.0521 0.4575 0.31566 2017 5 22 57895 0.0538 0.4584 0.31412 2017 5 23 57896 0.0555 0.4594 0.31246 2017 5 24 57897 0.0572 0.4603 0.31081 2017 5 25 57898 0.0590 0.4612 0.30922 2017 5 26 57899 0.0607 0.4621 0.30786 2017 5 27 57900 0.0625 0.4629 0.30665 2017 5 28 57901 0.0642 0.4638 0.30559 2017 5 29 57902 0.0660 0.4645 0.30460 2017 5 30 57903 0.0678 0.4653 0.30363 2017 5 31 57904 0.0696 0.4660 0.30261 2017 6 1 57905 0.0714 0.4668 0.30155 2017 6 2 57906 0.0732 0.4674 0.30046 2017 6 3 57907 0.0751 0.4681 0.29946 2017 6 4 57908 0.0769 0.4687 0.29850 2017 6 5 57909 0.0787 0.4693 0.29759 2017 6 6 57910 0.0806 0.4699 0.29672 2017 6 7 57911 0.0825 0.4704 0.29591 2017 6 8 57912 0.0843 0.4710 0.29523 2017 6 9 57913 0.0862 0.4714 0.29462 2017 6 10 57914 0.0881 0.4719 0.29410 2017 6 11 57915 0.0900 0.4723 0.29355 2017 6 12 57916 0.0919 0.4727 0.29306 2017 6 13 57917 0.0938 0.4731 0.29255 2017 6 14 57918 0.0957 0.4734 0.29200 2017 6 15 57919 0.0976 0.4737 0.29135 2017 6 16 57920 0.0995 0.4740 0.29059 2017 6 17 57921 0.1014 0.4743 0.28973 2017 6 18 57922 0.1033 0.4745 0.28874 2017 6 19 57923 0.1053 0.4747 0.28763 2017 6 20 57924 0.1072 0.4749 0.28641 2017 6 21 57925 0.1091 0.4750 0.28519 2017 6 22 57926 0.1110 0.4751 0.28416 2017 6 23 57927 0.1129 0.4752 0.28336 2017 6 24 57928 0.1148 0.4753 0.28275 2017 6 25 57929 0.1167 0.4753 0.28212 2017 6 26 57930 0.1186 0.4753 0.28141 2017 6 27 57931 0.1206 0.4752 0.28073 2017 6 28 57932 0.1225 0.4752 0.28000 2017 6 29 57933 0.1243 0.4751 0.27926 2017 6 30 57934 0.1262 0.4750 0.27848 2017 7 1 57935 0.1281 0.4748 0.27780 2017 7 2 57936 0.1300 0.4746 0.27714 2017 7 3 57937 0.1319 0.4744 0.27657 2017 7 4 57938 0.1337 0.4742 0.27614 2017 7 5 57939 0.1356 0.4739 0.27589 2017 7 6 57940 0.1374 0.4736 0.27576 2017 7 7 57941 0.1393 0.4733 0.27572 2017 7 8 57942 0.1411 0.4729 0.27568 2017 7 9 57943 0.1429 0.4726 0.27560 2017 7 10 57944 0.1448 0.4722 0.27548 2017 7 11 57945 0.1466 0.4717 0.27525 2017 7 12 57946 0.1484 0.4713 0.27488 2017 7 13 57947 0.1501 0.4708 0.27437 2017 7 14 57948 0.1519 0.4703 0.27376 2017 7 15 57949 0.1537 0.4697 0.27304 2017 7 16 57950 0.1554 0.4692 0.27220 2017 7 17 57951 0.1571 0.4686 0.27127 2017 7 18 57952 0.1588 0.4679 0.27036 2017 7 19 57953 0.1605 0.4673 0.26950 2017 7 20 57954 0.1622 0.4666 0.26881 2017 7 21 57955 0.1639 0.4659 0.26823 2017 7 22 57956 0.1655 0.4652 0.26776 2017 7 23 57957 0.1672 0.4644 0.26728 2017 7 24 57958 0.1688 0.4637 0.26670 2017 7 25 57959 0.1704 0.4629 0.26602 2017 7 26 57960 0.1720 0.4621 0.26523 2017 7 27 57961 0.1736 0.4612 0.26436 2017 7 28 57962 0.1751 0.4603 0.26353 2017 7 29 57963 0.1766 0.4594 0.26280 2017 7 30 57964 0.1781 0.4585 0.26205 2017 7 31 57965 0.1796 0.4576 0.26134 2017 8 1 57966 0.1811 0.4566 0.26072 2017 8 2 57967 0.1826 0.4556 0.26014 2017 8 3 57968 0.1840 0.4546 0.25964 2017 8 4 57969 0.1854 0.4536 0.25917 2017 8 5 57970 0.1868 0.4526 0.25873 2017 8 6 57971 0.1881 0.4515 0.25822 2017 8 7 57972 0.1895 0.4504 0.25766 2017 8 8 57973 0.1908 0.4493 0.25703 2017 8 9 57974 0.1921 0.4482 0.25629 2017 8 10 57975 0.1934 0.4470 0.25549 2017 8 11 57976 0.1946 0.4458 0.25456 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) 57589 -101.86 0.30 -13.12 0.11 57590 -101.87 0.30 -13.09 0.11 57591 -102.11 0.30 -12.97 0.11 57592 -102.46 0.30 -12.88 0.15 57593 -102.66 0.30 -12.87 0.15 57594 -102.62 0.30 -12.90 0.15 57595 -102.46 0.30 -12.88 0.15 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57589 0.162 0.119 -0.114 0.110 57590 0.164 0.119 -0.094 0.110 57591 0.160 0.119 -0.090 0.110 57592 0.153 0.119 -0.109 0.150 57593 0.158 0.119 -0.122 0.150 57594 0.161 0.119 -0.122 0.150 57595 0.159 0.119 -0.101 0.150 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).