********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 30 June 2016 Vol. XXIX No. 026 ______________________________________________________________________ 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 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. * * * * 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 6 24 57563 0.13869 .00009 0.48956 .00009 -0.205923 0.000016 16 6 25 57564 0.14068 .00009 0.48901 .00009 -0.206538 0.000014 16 6 26 57565 0.14255 .00009 0.48867 .00009 -0.207328 0.000011 16 6 27 57566 0.14445 .00009 0.48812 .00009 -0.208296 0.000013 16 6 28 57567 0.14647 .00009 0.48722 .00009 -0.209315 0.000011 16 6 29 57568 0.14852 .00009 0.48627 .00009 -0.210417 0.000012 16 6 30 57569 0.15039 .00009 0.48536 .00009 -0.211441 0.000012 _______________________________________________________________________ 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 = 0.0981 + 0.0162 cos A + 0.1288 sin A + 0.0402 cos C + 0.0027 sin C y = 0.3632 + 0.1208 cos A - 0.0149 sin A + 0.0027 cos C - 0.0402 sin C UT1-UTC = -0.2007 - 0.00146 (MJD - 57577) - (UT2-UT1) where A = 2*pi*(MJD-57569)/365.25 and C = 2*pi*(MJD-57569)/435. TAI-UTC(MJD 57570) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57569)**0.80 S t = 0.00025 (MJD-57569)**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 7 1 57570 0.1524 0.4844 -0.21241 2016 7 2 57571 0.1543 0.4836 -0.21324 2016 7 3 57572 0.1563 0.4828 -0.21393 2016 7 4 57573 0.1583 0.4820 -0.21452 2016 7 5 57574 0.1602 0.4813 -0.21503 2016 7 6 57575 0.1623 0.4805 -0.21552 2016 7 7 57576 0.1643 0.4797 -0.21603 2016 7 8 57577 0.1662 0.4788 -0.21657 2016 7 9 57578 0.1682 0.4779 -0.21715 2016 7 10 57579 0.1701 0.4769 -0.21777 2016 7 11 57580 0.1720 0.4759 -0.21842 2016 7 12 57581 0.1739 0.4750 -0.21905 2016 7 13 57582 0.1758 0.4740 -0.21963 2016 7 14 57583 0.1777 0.4730 -0.22012 2016 7 15 57584 0.1795 0.4720 -0.22049 2016 7 16 57585 0.1813 0.4709 -0.22076 2016 7 17 57586 0.1831 0.4698 -0.22094 2016 7 18 57587 0.1848 0.4686 -0.22107 2016 7 19 57588 0.1865 0.4675 -0.22119 2016 7 20 57589 0.1883 0.4663 -0.22138 2016 7 21 57590 0.1900 0.4651 -0.22169 2016 7 22 57591 0.1917 0.4638 -0.22215 2016 7 23 57592 0.1933 0.4626 -0.22278 2016 7 24 57593 0.1949 0.4613 -0.22357 2016 7 25 57594 0.1966 0.4600 -0.22447 2016 7 26 57595 0.1981 0.4587 -0.22542 2016 7 27 57596 0.1997 0.4573 -0.22634 2016 7 28 57597 0.2012 0.4560 -0.22719 2016 7 29 57598 0.2027 0.4546 -0.22794 2016 7 30 57599 0.2042 0.4531 -0.22860 2016 7 31 57600 0.2057 0.4517 -0.22921 2016 8 1 57601 0.2071 0.4503 -0.22981 2016 8 2 57602 0.2085 0.4488 -0.23044 2016 8 3 57603 0.2099 0.4473 -0.23114 2016 8 4 57604 0.2112 0.4458 -0.23192 2016 8 5 57605 0.2125 0.4442 -0.23277 2016 8 6 57606 0.2138 0.4426 -0.23364 2016 8 7 57607 0.2150 0.4411 -0.23452 2016 8 8 57608 0.2163 0.4395 -0.23538 2016 8 9 57609 0.2174 0.4378 -0.23619 2016 8 10 57610 0.2186 0.4362 -0.23693 2016 8 11 57611 0.2197 0.4345 -0.23760 2016 8 12 57612 0.2208 0.4329 -0.23819 2016 8 13 57613 0.2219 0.4312 -0.23872 2016 8 14 57614 0.2229 0.4295 -0.23922 2016 8 15 57615 0.2239 0.4277 -0.23972 2016 8 16 57616 0.2249 0.4260 -0.24028 2016 8 17 57617 0.2259 0.4242 -0.24095 2016 8 18 57618 0.2268 0.4225 -0.24177 2016 8 19 57619 0.2276 0.4207 -0.24276 2016 8 20 57620 0.2285 0.4189 -0.24391 2016 8 21 57621 0.2293 0.4171 -0.24518 2016 8 22 57622 0.2301 0.4153 -0.24649 2016 8 23 57623 0.2308 0.4134 -0.24777 2016 8 24 57624 0.2315 0.4116 -0.24894 2016 8 25 57625 0.2322 0.4097 -0.24998 2016 8 26 57626 0.2328 0.4079 -0.25089 2016 8 27 57627 0.2334 0.4060 -0.25172 2016 8 28 57628 0.2340 0.4041 -0.25251 2016 8 29 57629 0.2345 0.4022 -0.25332 2016 8 30 57630 0.2350 0.4003 -0.25419 2016 8 31 57631 0.2355 0.3984 -0.25515 2016 9 1 57632 0.2359 0.3965 -0.25619 2016 9 2 57633 0.2363 0.3945 -0.25731 2016 9 3 57634 0.2367 0.3926 -0.25847 2016 9 4 57635 0.2370 0.3907 -0.25963 2016 9 5 57636 0.2373 0.3887 -0.26078 2016 9 6 57637 0.2376 0.3868 -0.26188 2016 9 7 57638 0.2378 0.3848 -0.26293 2016 9 8 57639 0.2380 0.3829 -0.26391 2016 9 9 57640 0.2381 0.3809 -0.26485 2016 9 10 57641 0.2382 0.3790 -0.26576 2016 9 11 57642 0.2383 0.3770 -0.26669 2016 9 12 57643 0.2383 0.3750 -0.26767 2016 9 13 57644 0.2383 0.3731 -0.26876 2016 9 14 57645 0.2383 0.3711 -0.26999 2016 9 15 57646 0.2382 0.3691 -0.27142 2016 9 16 57647 0.2381 0.3672 -0.27304 2016 9 17 57648 0.2380 0.3652 -0.27482 2016 9 18 57649 0.2378 0.3633 -0.27670 2016 9 19 57650 0.2376 0.3613 -0.27858 2016 9 20 57651 0.2374 0.3593 -0.28038 2016 9 21 57652 0.2371 0.3574 -0.28205 2016 9 22 57653 0.2368 0.3554 -0.28356 2016 9 23 57654 0.2364 0.3535 -0.28496 2016 9 24 57655 0.2360 0.3516 -0.28628 2016 9 25 57656 0.2356 0.3496 -0.28759 2016 9 26 57657 0.2351 0.3477 -0.28892 2016 9 27 57658 0.2347 0.3458 -0.29033 2016 9 28 57659 0.2341 0.3439 -0.29181 2016 9 29 57660 0.2336 0.3420 -0.29337 2016 9 30 57661 0.2330 0.3401 -0.29498 2016 10 1 57662 0.2323 0.3382 -0.29661 2016 10 2 57663 0.2317 0.3363 -0.29824 2016 10 3 57664 0.2310 0.3345 -0.29982 2016 10 4 57665 0.2303 0.3326 -0.30135 2016 10 5 57666 0.2295 0.3308 -0.30282 2016 10 6 57667 0.2287 0.3289 -0.30423 2016 10 7 57668 0.2279 0.3271 -0.30560 2016 10 8 57669 0.2270 0.3253 -0.30697 2016 10 9 57670 0.2261 0.3235 -0.30837 2016 10 10 57671 0.2252 0.3217 -0.30986 2016 10 11 57672 0.2242 0.3199 -0.31147 2016 10 12 57673 0.2233 0.3182 -0.31326 2016 10 13 57674 0.2222 0.3164 -0.31524 2016 10 14 57675 0.2212 0.3147 -0.31741 2016 10 15 57676 0.2201 0.3130 -0.31973 2016 10 16 57677 0.2190 0.3113 -0.32211 2016 10 17 57678 0.2179 0.3097 -0.32442 2016 10 18 57679 0.2167 0.3080 -0.32661 2016 10 19 57680 0.2155 0.3064 -0.32864 2016 10 20 57681 0.2143 0.3047 -0.33052 2016 10 21 57682 0.2130 0.3031 -0.33227 2016 10 22 57683 0.2117 0.3016 -0.33398 2016 10 23 57684 0.2104 0.3000 -0.33568 2016 10 24 57685 0.2091 0.2984 -0.33742 2016 10 25 57686 0.2077 0.2969 -0.33922 2016 10 26 57687 0.2063 0.2954 -0.34107 2016 10 27 57688 0.2049 0.2939 -0.34296 2016 10 28 57689 0.2035 0.2925 -0.34486 2016 10 29 57690 0.2020 0.2910 -0.34674 2016 10 30 57691 0.2005 0.2896 -0.34858 2016 10 31 57692 0.1990 0.2882 -0.35034 2016 11 1 57693 0.1974 0.2869 -0.35203 2016 11 2 57694 0.1959 0.2855 -0.35363 2016 11 3 57695 0.1943 0.2842 -0.35517 2016 11 4 57696 0.1927 0.2829 -0.35666 2016 11 5 57697 0.1910 0.2816 -0.35814 2016 11 6 57698 0.1894 0.2804 -0.35965 2016 11 7 57699 0.1877 0.2792 -0.36125 2016 11 8 57700 0.1860 0.2780 -0.36298 2016 11 9 57701 0.1843 0.2768 -0.36487 2016 11 10 57702 0.1826 0.2757 -0.36693 2016 11 11 57703 0.1808 0.2745 -0.36915 2016 11 12 57704 0.1790 0.2734 -0.37148 2016 11 13 57705 0.1772 0.2724 -0.37383 2016 11 14 57706 0.1754 0.2713 -0.37611 2016 11 15 57707 0.1736 0.2703 -0.37825 2016 11 16 57708 0.1717 0.2694 -0.38022 2016 11 17 57709 0.1699 0.2684 -0.38205 2016 11 18 57710 0.1680 0.2675 -0.38378 2016 11 19 57711 0.1661 0.2666 -0.38549 2016 11 20 57712 0.1642 0.2657 -0.38720 2016 11 21 57713 0.1623 0.2649 -0.38895 2016 11 22 57714 0.1603 0.2641 -0.39074 2016 11 23 57715 0.1584 0.2633 -0.39255 2016 11 24 57716 0.1564 0.2626 -0.39436 2016 11 25 57717 0.1545 0.2618 -0.39614 2016 11 26 57718 0.1525 0.2612 -0.39786 2016 11 27 57719 0.1505 0.2605 -0.39951 2016 11 28 57720 0.1485 0.2599 -0.40106 2016 11 29 57721 0.1465 0.2593 -0.40253 2016 11 30 57722 0.1444 0.2587 -0.40390 2016 12 1 57723 0.1424 0.2582 -0.40521 2016 12 2 57724 0.1404 0.2577 -0.40648 2016 12 3 57725 0.1383 0.2572 -0.40776 2016 12 4 57726 0.1363 0.2568 -0.40909 2016 12 5 57727 0.1342 0.2564 -0.41052 2016 12 6 57728 0.1321 0.2560 -0.41207 2016 12 7 57729 0.1301 0.2557 -0.41378 2016 12 8 57730 0.1280 0.2553 -0.41562 2016 12 9 57731 0.1259 0.2551 -0.41759 2016 12 10 57732 0.1238 0.2548 -0.41960 2016 12 11 57733 0.1218 0.2546 -0.42160 2016 12 12 57734 0.1197 0.2544 -0.42350 2016 12 13 57735 0.1176 0.2543 -0.42527 2016 12 14 57736 0.1155 0.2542 -0.42690 2016 12 15 57737 0.1134 0.2541 -0.42843 2016 12 16 57738 0.1113 0.2540 -0.42991 2016 12 17 57739 0.1092 0.2540 -0.43140 2016 12 18 57740 0.1071 0.2540 -0.43293 2016 12 19 57741 0.1050 0.2540 -0.43451 2016 12 20 57742 0.1030 0.2541 -0.43611 2016 12 21 57743 0.1009 0.2542 -0.43772 2016 12 22 57744 0.0988 0.2544 -0.43930 2016 12 23 57745 0.0967 0.2545 -0.44084 2016 12 24 57746 0.0947 0.2547 -0.44230 2016 12 25 57747 0.0926 0.2550 -0.44368 2016 12 26 57748 0.0906 0.2552 -0.44498 2016 12 27 57749 0.0885 0.2555 -0.44619 2016 12 28 57750 0.0865 0.2559 -0.44734 2016 12 29 57751 0.0844 0.2562 -0.44847 2016 12 30 57752 0.0824 0.2566 -0.44960 2016 12 31 57753 0.0804 0.2570 -0.45079 2017 1 1 57754 0.0784 0.2575 -0.45209 2017 1 2 57755 0.0764 0.2580 -0.45352 2017 1 3 57756 0.0744 0.2585 -0.45512 2017 1 4 57757 0.0724 0.2590 -0.45687 2017 1 5 57758 0.0705 0.2596 -0.45875 2017 1 6 57759 0.0685 0.2602 -0.46071 2017 1 7 57760 0.0666 0.2609 -0.46270 2017 1 8 57761 0.0647 0.2615 -0.46464 2017 1 9 57762 0.0628 0.2622 -0.46650 2017 1 10 57763 0.0609 0.2630 -0.46827 2017 1 11 57764 0.0590 0.2637 -0.46997 2017 1 12 57765 0.0571 0.2645 -0.47167 2017 1 13 57766 0.0553 0.2653 -0.47343 2017 1 14 57767 0.0535 0.2662 -0.47528 2017 1 15 57768 0.0516 0.2670 -0.47722 2017 1 16 57769 0.0498 0.2679 -0.47925 2017 1 17 57770 0.0481 0.2689 -0.48130 2017 1 18 57771 0.0463 0.2698 -0.48333 2017 1 19 57772 0.0446 0.2708 -0.48529 2017 1 20 57773 0.0428 0.2718 -0.48713 2017 1 21 57774 0.0411 0.2728 -0.48884 2017 1 22 57775 0.0395 0.2739 -0.49039 2017 1 23 57776 0.0378 0.2750 -0.49180 2017 1 24 57777 0.0362 0.2761 -0.49309 2017 1 25 57778 0.0345 0.2772 -0.49432 2017 1 26 57779 0.0329 0.2784 -0.49553 2017 1 27 57780 0.0314 0.2796 -0.49676 2017 1 28 57781 0.0298 0.2808 -0.49808 2017 1 29 57782 0.0283 0.2820 -0.49950 2017 1 30 57783 0.0268 0.2833 -0.50108 2017 1 31 57784 0.0253 0.2846 -0.50282 2017 2 1 57785 0.0239 0.2859 -0.50471 2017 2 2 57786 0.0224 0.2872 -0.50669 2017 2 3 57787 0.0210 0.2886 -0.50872 2017 2 4 57788 0.0197 0.2899 -0.51071 2017 2 5 57789 0.0183 0.2913 -0.51264 2017 2 6 57790 0.0170 0.2928 -0.51447 2017 2 7 57791 0.0157 0.2942 -0.51615 2017 2 8 57792 0.0144 0.2956 -0.51774 2017 2 9 57793 0.0132 0.2971 -0.51929 2017 2 10 57794 0.0120 0.2986 -0.52092 2017 2 11 57795 0.0108 0.3001 -0.52264 2017 2 12 57796 0.0096 0.3017 -0.52447 2017 2 13 57797 0.0085 0.3032 -0.52631 2017 2 14 57798 0.0074 0.3048 -0.52815 2017 2 15 57799 0.0063 0.3064 -0.52993 2017 2 16 57800 0.0053 0.3080 -0.53156 2017 2 17 57801 0.0043 0.3096 -0.53304 2017 2 18 57802 0.0033 0.3112 -0.53440 2017 2 19 57803 0.0024 0.3129 -0.53569 2017 2 20 57804 0.0015 0.3145 -0.53682 2017 2 21 57805 0.0006 0.3162 -0.53790 2017 2 22 57806 -0.0003 0.3179 -0.53888 2017 2 23 57807 -0.0011 0.3196 -0.53994 2017 2 24 57808 -0.0019 0.3213 -0.54107 2017 2 25 57809 -0.0026 0.3231 -0.54237 2017 2 26 57810 -0.0034 0.3248 -0.54391 2017 2 27 57811 -0.0041 0.3266 -0.54569 2017 2 28 57812 -0.0047 0.3283 -0.54767 2017 3 1 57813 -0.0054 0.3301 -0.54976 2017 3 2 57814 -0.0060 0.3319 -0.55192 2017 3 3 57815 -0.0065 0.3337 -0.55395 2017 3 4 57816 -0.0070 0.3355 -0.55588 2017 3 5 57817 -0.0075 0.3373 -0.55766 2017 3 6 57818 -0.0080 0.3391 -0.55932 2017 3 7 57819 -0.0084 0.3409 -0.56088 2017 3 8 57820 -0.0088 0.3428 -0.56245 2017 3 9 57821 -0.0092 0.3446 -0.56405 2017 3 10 57822 -0.0095 0.3465 -0.56573 2017 3 11 57823 -0.0098 0.3483 -0.56743 2017 3 12 57824 -0.0101 0.3502 -0.56919 2017 3 13 57825 -0.0103 0.3520 -0.57102 2017 3 14 57826 -0.0105 0.3539 -0.57291 2017 3 15 57827 -0.0106 0.3558 -0.57482 2017 3 16 57828 -0.0108 0.3576 -0.57665 2017 3 17 57829 -0.0109 0.3595 -0.57844 2017 3 18 57830 -0.0109 0.3614 -0.58013 2017 3 19 57831 -0.0109 0.3633 -0.58182 2017 3 20 57832 -0.0109 0.3651 -0.58341 2017 3 21 57833 -0.0109 0.3670 -0.58497 2017 3 22 57834 -0.0108 0.3689 -0.58651 2017 3 23 57835 -0.0107 0.3708 -0.58810 2017 3 24 57836 -0.0105 0.3726 -0.58978 2017 3 25 57837 -0.0104 0.3745 -0.59159 2017 3 26 57838 -0.0102 0.3764 -0.59356 2017 3 27 57839 -0.0099 0.3782 -0.59576 2017 3 28 57840 -0.0096 0.3801 -0.59818 2017 3 29 57841 -0.0093 0.3820 -0.60071 2017 3 30 57842 -0.0090 0.3838 -0.60313 2017 3 31 57843 -0.0086 0.3857 -0.60535 2017 4 1 57844 -0.0082 0.3875 -0.60735 2017 4 2 57845 -0.0077 0.3893 -0.60931 2017 4 3 57846 -0.0072 0.3912 -0.61122 2017 4 4 57847 -0.0067 0.3930 -0.61302 2017 4 5 57848 -0.0062 0.3948 -0.61480 2017 4 6 57849 -0.0056 0.3966 -0.61658 2017 4 7 57850 -0.0050 0.3984 -0.61846 2017 4 8 57851 -0.0044 0.4002 -0.62034 2017 4 9 57852 -0.0037 0.4020 -0.62231 2017 4 10 57853 -0.0030 0.4037 -0.62429 2017 4 11 57854 -0.0022 0.4055 -0.62621 2017 4 12 57855 -0.0015 0.4072 -0.62800 2017 4 13 57856 -0.0007 0.4090 -0.62967 2017 4 14 57857 0.0001 0.4107 -0.63124 2017 4 15 57858 0.0010 0.4124 -0.63276 2017 4 16 57859 0.0019 0.4141 -0.63426 2017 4 17 57860 0.0028 0.4158 -0.63572 2017 4 18 57861 0.0038 0.4175 -0.63719 2017 4 19 57862 0.0047 0.4191 -0.63872 2017 4 20 57863 0.0057 0.4207 -0.64034 2017 4 21 57864 0.0068 0.4224 -0.64203 2017 4 22 57865 0.0078 0.4240 -0.64385 2017 4 23 57866 0.0089 0.4256 -0.64587 2017 4 24 57867 0.0100 0.4271 -0.64810 2017 4 25 57868 0.0112 0.4287 -0.65044 2017 4 26 57869 0.0123 0.4302 -0.65281 2017 4 27 57870 0.0135 0.4318 -0.65504 2017 4 28 57871 0.0148 0.4333 -0.65712 2017 4 29 57872 0.0160 0.4348 -0.65898 2017 4 30 57873 0.0173 0.4362 -0.66071 2017 5 1 57874 0.0186 0.4377 -0.66239 2017 5 2 57875 0.0199 0.4391 -0.66403 2017 5 3 57876 0.0212 0.4405 -0.66572 2017 5 4 57877 0.0226 0.4419 -0.66747 2017 5 5 57878 0.0240 0.4433 -0.66923 2017 5 6 57879 0.0254 0.4446 -0.67095 2017 5 7 57880 0.0269 0.4459 -0.67277 2017 5 8 57881 0.0283 0.4472 -0.67461 2017 5 9 57882 0.0298 0.4485 -0.67640 2017 5 10 57883 0.0313 0.4498 -0.67815 2017 5 11 57884 0.0328 0.4510 -0.67980 2017 5 12 57885 0.0344 0.4522 -0.68135 2017 5 13 57886 0.0359 0.4534 -0.68278 2017 5 14 57887 0.0375 0.4546 -0.68418 2017 5 15 57888 0.0391 0.4557 -0.68549 2017 5 16 57889 0.0408 0.4568 -0.68676 2017 5 17 57890 0.0424 0.4579 -0.68804 2017 5 18 57891 0.0440 0.4590 -0.68931 2017 5 19 57892 0.0457 0.4600 -0.69068 2017 5 20 57893 0.0474 0.4610 -0.69221 2017 5 21 57894 0.0491 0.4620 -0.69390 2017 5 22 57895 0.0508 0.4630 -0.69575 2017 5 23 57896 0.0526 0.4639 -0.69765 2017 5 24 57897 0.0543 0.4648 -0.69948 2017 5 25 57898 0.0561 0.4657 -0.70121 2017 5 26 57899 0.0579 0.4665 -0.70281 2017 5 27 57900 0.0597 0.4674 -0.70422 2017 5 28 57901 0.0615 0.4682 -0.70546 2017 5 29 57902 0.0633 0.4689 -0.70660 2017 5 30 57903 0.0651 0.4697 -0.70780 2017 5 31 57904 0.0669 0.4704 -0.70907 2017 6 1 57905 0.0688 0.4711 -0.71042 2017 6 2 57906 0.0706 0.4717 -0.71181 2017 6 3 57907 0.0725 0.4723 -0.71324 2017 6 4 57908 0.0744 0.4729 -0.71458 2017 6 5 57909 0.0763 0.4735 -0.71587 2017 6 6 57910 0.0782 0.4741 -0.71705 2017 6 7 57911 0.0801 0.4746 -0.71811 2017 6 8 57912 0.0820 0.4751 -0.71909 2017 6 9 57913 0.0839 0.4755 -0.71993 2017 6 10 57914 0.0858 0.4759 -0.72066 2017 6 11 57915 0.0877 0.4763 -0.72139 2017 6 12 57916 0.0896 0.4767 -0.72201 2017 6 13 57917 0.0916 0.4770 -0.72265 2017 6 14 57918 0.0935 0.4773 -0.72335 2017 6 15 57919 0.0954 0.4776 -0.72412 2017 6 16 57920 0.0974 0.4779 -0.72501 2017 6 17 57921 0.0993 0.4781 -0.72600 2017 6 18 57922 0.1012 0.4783 -0.72709 2017 6 19 57923 0.1032 0.4784 -0.72821 2017 6 20 57924 0.1051 0.4786 -0.72940 2017 6 21 57925 0.1070 0.4786 -0.73053 2017 6 22 57926 0.1090 0.4787 -0.73150 2017 6 23 57927 0.1109 0.4788 -0.73239 2017 6 24 57928 0.1128 0.4788 -0.73306 2017 6 25 57929 0.1148 0.4787 -0.73372 2017 6 26 57930 0.1167 0.4787 -0.73438 2017 6 27 57931 0.1186 0.4786 -0.73511 2017 6 28 57932 0.1205 0.4785 -0.73585 2017 6 29 57933 0.1224 0.4784 -0.73669 2017 6 30 57934 0.1244 0.4782 -0.73759 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) 57543 -95.27 0.30 -13.17 0.07 57544 -95.57 0.19 -13.38 0.06 57545 -95.54 0.30 -13.37 0.04 57546 -95.16 0.30 -13.27 0.02 57547 -94.69 0.30 -13.28 0.02 57548 -94.53 0.30 -13.41 0.02 57549 -94.91 0.30 -13.52 0.02 57550 -95.58 0.30 -13.51 0.02 57551 -96.04 0.30 -13.46 0.02 57552 -96.11 0.30 -13.41 0.02 57553 -96.08 0.30 -13.37 0.02 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57543 0.123 0.119 0.068 0.070 57544 0.128 0.076 0.054 0.060 57545 0.128 0.119 0.024 0.040 57546 0.133 0.119 0.007 0.020 57547 0.143 0.119 0.002 0.020 57548 0.159 0.119 0.012 0.020 57549 0.164 0.119 0.033 0.020 57550 0.149 0.119 0.065 0.020 57551 0.131 0.119 0.058 0.020 57552 0.119 0.119 0.044 0.020 57553 0.097 0.119 0.031 0.020 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).