********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 4 August 2016 Vol. XXIX No. 031 ______________________________________________________________________ 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. * * * * NOTE: Since approximately the morning of July 31, 2016, the backup * * EO server at http://toshi.nofs.navy.mil and * * ftp://toshi.nofs.navy.mil has been offline. We expect * * repairs to be completed soon and service to the backup server * * restored shortly thereafter. * * * * 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 7 29 57598 0.21016 .00009 0.45309 .00009 -0.224298 0.000009 16 7 30 57599 0.21148 .00009 0.45186 .00009 -0.224708 0.000009 16 7 31 57600 0.21254 .00010 0.45060 .00009 -0.225106 0.000009 16 8 1 57601 0.21312 .00009 0.44937 .00009 -0.225441 0.000007 16 8 2 57602 0.21355 .00009 0.44795 .00009 -0.225864 0.000007 16 8 3 57603 0.21447 .00009 0.44624 .00009 -0.226367 0.000007 16 8 4 57604 0.21582 .00009 0.44466 .00009 -0.226947 0.000006 IERS Final Values MJD x y UT1-UTC " " s 16 6 2 57541 0.0951 0.4970 -0.18820 16 6 3 57542 0.0971 0.4972 -0.18994 16 6 4 57543 0.0989 0.4974 -0.19149 16 6 5 57544 0.1001 0.4975 -0.19284 16 6 6 57545 0.1015 0.4975 -0.19409 16 6 7 57546 0.1027 0.4979 -0.19520 16 6 8 57547 0.1037 0.4979 -0.19619 16 6 9 57548 0.1048 0.4977 -0.19720 16 6 10 57549 0.1061 0.4972 -0.19813 16 6 11 57550 0.1077 0.4964 -0.19905 16 6 12 57551 0.1095 0.4954 -0.19998 16 6 13 57552 0.1122 0.4942 -0.20088 16 6 14 57553 0.1152 0.4940 -0.20169 16 6 15 57554 0.1180 0.4945 -0.20244 16 6 16 57555 0.1208 0.4948 -0.20310 16 6 17 57556 0.1237 0.4946 -0.20363 16 6 18 57557 0.1263 0.4940 -0.20405 16 6 19 57558 0.1283 0.4932 -0.20437 16 6 20 57559 0.1304 0.4922 -0.20464 16 6 21 57560 0.1322 0.4915 -0.20485 16 6 22 57561 0.1341 0.4906 -0.20505 16 6 23 57562 0.1365 0.4902 -0.20543 16 6 24 57563 0.1387 0.4896 -0.20590 16 6 25 57564 0.1407 0.4889 -0.20652 16 6 26 57565 0.1425 0.4887 -0.20732 16 6 27 57566 0.1444 0.4882 -0.20830 16 6 28 57567 0.1464 0.4872 -0.20933 16 6 29 57568 0.1486 0.4863 -0.21041 16 6 30 57569 0.1503 0.4854 -0.21149 16 7 1 57570 0.1522 0.4839 -0.21245 _______________________________________________________________________ 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 = 0.1035 + 0.0808 cos A + 0.0836 sin A + 0.0332 cos C - 0.0036 sin C y = 0.3709 + 0.0797 cos A - 0.0770 sin A - 0.0036 cos C - 0.0332 sin C UT1-UTC = -0.2423 - 0.00144 (MJD - 57612) - (UT2-UT1) where A = 2*pi*(MJD-57604)/365.25 and C = 2*pi*(MJD-57604)/435. TAI-UTC(MJD 57605) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57604)**0.80 S t = 0.00025 (MJD-57604)**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 5 57605 0.2172 0.4431 -0.22759 2016 8 6 57606 0.2186 0.4417 -0.22828 2016 8 7 57607 0.2199 0.4402 -0.22898 2016 8 8 57608 0.2211 0.4387 -0.22965 2016 8 9 57609 0.2223 0.4371 -0.23025 2016 8 10 57610 0.2233 0.4354 -0.23079 2016 8 11 57611 0.2245 0.4337 -0.23125 2016 8 12 57612 0.2256 0.4320 -0.23166 2016 8 13 57613 0.2267 0.4303 -0.23201 2016 8 14 57614 0.2278 0.4286 -0.23235 2016 8 15 57615 0.2288 0.4269 -0.23274 2016 8 16 57616 0.2297 0.4252 -0.23320 2016 8 17 57617 0.2307 0.4235 -0.23379 2016 8 18 57618 0.2316 0.4217 -0.23453 2016 8 19 57619 0.2325 0.4200 -0.23544 2016 8 20 57620 0.2333 0.4182 -0.23649 2016 8 21 57621 0.2340 0.4164 -0.23762 2016 8 22 57622 0.2348 0.4145 -0.23875 2016 8 23 57623 0.2355 0.4127 -0.23982 2016 8 24 57624 0.2362 0.4108 -0.24079 2016 8 25 57625 0.2369 0.4089 -0.24163 2016 8 26 57626 0.2376 0.4071 -0.24233 2016 8 27 57627 0.2382 0.4052 -0.24295 2016 8 28 57628 0.2388 0.4033 -0.24354 2016 8 29 57629 0.2393 0.4014 -0.24415 2016 8 30 57630 0.2398 0.3995 -0.24485 2016 8 31 57631 0.2403 0.3975 -0.24563 2016 9 1 57632 0.2407 0.3956 -0.24653 2016 9 2 57633 0.2411 0.3937 -0.24752 2016 9 3 57634 0.2415 0.3917 -0.24857 2016 9 4 57635 0.2418 0.3898 -0.24963 2016 9 5 57636 0.2422 0.3878 -0.25067 2016 9 6 57637 0.2424 0.3859 -0.25166 2016 9 7 57638 0.2427 0.3839 -0.25259 2016 9 8 57639 0.2428 0.3819 -0.25345 2016 9 9 57640 0.2430 0.3800 -0.25425 2016 9 10 57641 0.2431 0.3780 -0.25501 2016 9 11 57642 0.2432 0.3760 -0.25579 2016 9 12 57643 0.2433 0.3740 -0.25662 2016 9 13 57644 0.2433 0.3721 -0.25756 2016 9 14 57645 0.2433 0.3701 -0.25867 2016 9 15 57646 0.2432 0.3681 -0.25998 2016 9 16 57647 0.2431 0.3661 -0.26150 2016 9 17 57648 0.2430 0.3642 -0.26321 2016 9 18 57649 0.2428 0.3622 -0.26504 2016 9 19 57650 0.2426 0.3602 -0.26689 2016 9 20 57651 0.2424 0.3582 -0.26868 2016 9 21 57652 0.2421 0.3563 -0.27036 2016 9 22 57653 0.2418 0.3543 -0.27191 2016 9 23 57654 0.2415 0.3523 -0.27335 2016 9 24 57655 0.2411 0.3504 -0.27473 2016 9 25 57656 0.2407 0.3485 -0.27610 2016 9 26 57657 0.2403 0.3465 -0.27752 2016 9 27 57658 0.2398 0.3446 -0.27901 2016 9 28 57659 0.2393 0.3427 -0.28057 2016 9 29 57660 0.2387 0.3407 -0.28219 2016 9 30 57661 0.2381 0.3388 -0.28386 2016 10 1 57662 0.2375 0.3369 -0.28554 2016 10 2 57663 0.2369 0.3350 -0.28720 2016 10 3 57664 0.2362 0.3332 -0.28881 2016 10 4 57665 0.2355 0.3313 -0.29035 2016 10 5 57666 0.2347 0.3294 -0.29182 2016 10 6 57667 0.2339 0.3276 -0.29321 2016 10 7 57668 0.2331 0.3257 -0.29454 2016 10 8 57669 0.2323 0.3239 -0.29585 2016 10 9 57670 0.2314 0.3221 -0.29718 2016 10 10 57671 0.2305 0.3203 -0.29857 2016 10 11 57672 0.2295 0.3185 -0.30008 2016 10 12 57673 0.2285 0.3168 -0.30175 2016 10 13 57674 0.2275 0.3150 -0.30361 2016 10 14 57675 0.2265 0.3133 -0.30566 2016 10 15 57676 0.2254 0.3115 -0.30785 2016 10 16 57677 0.2243 0.3098 -0.31010 2016 10 17 57678 0.2232 0.3081 -0.31232 2016 10 18 57679 0.2220 0.3065 -0.31441 2016 10 19 57680 0.2208 0.3048 -0.31635 2016 10 20 57681 0.2196 0.3032 -0.31813 2016 10 21 57682 0.2183 0.3016 -0.31981 2016 10 22 57683 0.2170 0.3000 -0.32143 2016 10 23 57684 0.2157 0.2984 -0.32306 2016 10 24 57685 0.2144 0.2968 -0.32473 2016 10 25 57686 0.2130 0.2953 -0.32645 2016 10 26 57687 0.2117 0.2938 -0.32823 2016 10 27 57688 0.2102 0.2923 -0.33005 2016 10 28 57689 0.2088 0.2908 -0.33189 2016 10 29 57690 0.2073 0.2894 -0.33370 2016 10 30 57691 0.2058 0.2879 -0.33546 2016 10 31 57692 0.2043 0.2865 -0.33717 2016 11 1 57693 0.2028 0.2851 -0.33879 2016 11 2 57694 0.2012 0.2838 -0.34033 2016 11 3 57695 0.1996 0.2824 -0.34180 2016 11 4 57696 0.1980 0.2811 -0.34322 2016 11 5 57697 0.1964 0.2798 -0.34464 2016 11 6 57698 0.1947 0.2786 -0.34609 2016 11 7 57699 0.1930 0.2773 -0.34762 2016 11 8 57700 0.1913 0.2761 -0.34927 2016 11 9 57701 0.1896 0.2749 -0.35108 2016 11 10 57702 0.1879 0.2738 -0.35306 2016 11 11 57703 0.1861 0.2726 -0.35520 2016 11 12 57704 0.1843 0.2715 -0.35745 2016 11 13 57705 0.1825 0.2704 -0.35971 2016 11 14 57706 0.1807 0.2694 -0.36191 2016 11 15 57707 0.1789 0.2684 -0.36397 2016 11 16 57708 0.1770 0.2674 -0.36587 2016 11 17 57709 0.1752 0.2664 -0.36761 2016 11 18 57710 0.1733 0.2655 -0.36927 2016 11 19 57711 0.1714 0.2645 -0.37090 2016 11 20 57712 0.1695 0.2637 -0.37254 2016 11 21 57713 0.1675 0.2628 -0.37420 2016 11 22 57714 0.1656 0.2620 -0.37591 2016 11 23 57715 0.1636 0.2612 -0.37764 2016 11 24 57716 0.1617 0.2604 -0.37937 2016 11 25 57717 0.1597 0.2597 -0.38107 2016 11 26 57718 0.1577 0.2590 -0.38273 2016 11 27 57719 0.1557 0.2583 -0.38431 2016 11 28 57720 0.1537 0.2577 -0.38581 2016 11 29 57721 0.1516 0.2571 -0.38722 2016 11 30 57722 0.1496 0.2565 -0.38854 2016 12 1 57723 0.1476 0.2559 -0.38981 2016 12 2 57724 0.1455 0.2554 -0.39104 2016 12 3 57725 0.1435 0.2549 -0.39228 2016 12 4 57726 0.1414 0.2545 -0.39358 2016 12 5 57727 0.1393 0.2540 -0.39499 2016 12 6 57728 0.1372 0.2536 -0.39652 2016 12 7 57729 0.1352 0.2533 -0.39822 2016 12 8 57730 0.1331 0.2530 -0.40006 2016 12 9 57731 0.1310 0.2527 -0.40202 2016 12 10 57732 0.1289 0.2524 -0.40404 2016 12 11 57733 0.1268 0.2522 -0.40605 2016 12 12 57734 0.1247 0.2520 -0.40798 2016 12 13 57735 0.1226 0.2518 -0.40977 2016 12 14 57736 0.1205 0.2517 -0.41142 2016 12 15 57737 0.1184 0.2516 -0.41298 2016 12 16 57738 0.1163 0.2515 -0.41450 2016 12 17 57739 0.1142 0.2514 -0.41602 2016 12 18 57740 0.1121 0.2514 -0.41759 2016 12 19 57741 0.1100 0.2515 -0.41920 2016 12 20 57742 0.1079 0.2515 -0.42085 2016 12 21 57743 0.1058 0.2516 -0.42250 2016 12 22 57744 0.1037 0.2517 -0.42412 2016 12 23 57745 0.1016 0.2519 -0.42570 2016 12 24 57746 0.0995 0.2521 -0.42720 2016 12 25 57747 0.0974 0.2523 -0.42862 2016 12 26 57748 0.0953 0.2525 -0.42994 2016 12 27 57749 0.0933 0.2528 -0.43119 2016 12 28 57750 0.0912 0.2531 -0.43236 2016 12 29 57751 0.0892 0.2535 -0.43350 2016 12 30 57752 0.0871 0.2538 -0.43464 2016 12 31 57753 0.0851 0.2543 -0.43582 2017 1 1 57754 0.0830 0.2547 0.56291 2017 1 2 57755 0.0810 0.2552 0.56151 2017 1 3 57756 0.0790 0.2557 0.55997 2017 1 4 57757 0.0770 0.2562 0.55830 2017 1 5 57758 0.0750 0.2568 0.55651 2017 1 6 57759 0.0731 0.2573 0.55466 2017 1 7 57760 0.0711 0.2580 0.55280 2017 1 8 57761 0.0692 0.2586 0.55101 2017 1 9 57762 0.0672 0.2593 0.54931 2017 1 10 57763 0.0653 0.2600 0.54772 2017 1 11 57764 0.0634 0.2608 0.54624 2017 1 12 57765 0.0615 0.2615 0.54479 2017 1 13 57766 0.0597 0.2623 0.54334 2017 1 14 57767 0.0578 0.2632 0.54182 2017 1 15 57768 0.0560 0.2640 0.54024 2017 1 16 57769 0.0541 0.2649 0.53860 2017 1 17 57770 0.0523 0.2658 0.53694 2017 1 18 57771 0.0505 0.2668 0.53528 2017 1 19 57772 0.0488 0.2677 0.53366 2017 1 20 57773 0.0470 0.2687 0.53211 2017 1 21 57774 0.0453 0.2697 0.53064 2017 1 22 57775 0.0436 0.2708 0.52926 2017 1 23 57776 0.0419 0.2719 0.52797 2017 1 24 57777 0.0402 0.2730 0.52675 2017 1 25 57778 0.0386 0.2741 0.52558 2017 1 26 57779 0.0370 0.2752 0.52440 2017 1 27 57780 0.0354 0.2764 0.52320 2017 1 28 57781 0.0338 0.2776 0.52191 2017 1 29 57782 0.0322 0.2789 0.52049 2017 1 30 57783 0.0307 0.2801 0.51893 2017 1 31 57784 0.0292 0.2814 0.51724 2017 2 1 57785 0.0277 0.2827 0.51543 2017 2 2 57786 0.0263 0.2840 0.51357 2017 2 3 57787 0.0248 0.2853 0.51173 2017 2 4 57788 0.0234 0.2867 0.50996 2017 2 5 57789 0.0220 0.2881 0.50830 2017 2 6 57790 0.0207 0.2895 0.50678 2017 2 7 57791 0.0194 0.2909 0.50538 2017 2 8 57792 0.0181 0.2924 0.50405 2017 2 9 57793 0.0168 0.2938 0.50274 2017 2 10 57794 0.0156 0.2953 0.50139 2017 2 11 57795 0.0143 0.2968 0.49995 2017 2 12 57796 0.0132 0.2984 0.49842 2017 2 13 57797 0.0120 0.2999 0.49682 2017 2 14 57798 0.0109 0.3015 0.49519 2017 2 15 57799 0.0098 0.3030 0.49358 2017 2 16 57800 0.0087 0.3046 0.49201 2017 2 17 57801 0.0077 0.3062 0.49052 2017 2 18 57802 0.0066 0.3079 0.48911 2017 2 19 57803 0.0057 0.3095 0.48779 2017 2 20 57804 0.0047 0.3112 0.48653 2017 2 21 57805 0.0038 0.3129 0.48529 2017 2 22 57806 0.0029 0.3145 0.48405 2017 2 23 57807 0.0021 0.3162 0.48275 2017 2 24 57808 0.0012 0.3180 0.48134 2017 2 25 57809 0.0005 0.3197 0.47978 2017 2 26 57810 -0.0003 0.3214 0.47803 2017 2 27 57811 -0.0010 0.3232 0.47607 2017 2 28 57812 -0.0017 0.3249 0.47392 2017 3 1 57813 -0.0024 0.3267 0.47161 2017 3 2 57814 -0.0030 0.3285 0.46923 2017 3 3 57815 -0.0036 0.3303 0.46685 2017 3 4 57816 -0.0042 0.3321 0.46454 2017 3 5 57817 -0.0047 0.3339 0.46234 2017 3 6 57818 -0.0052 0.3357 0.46024 2017 3 7 57819 -0.0056 0.3376 0.45821 2017 3 8 57820 -0.0061 0.3394 0.45620 2017 3 9 57821 -0.0065 0.3412 0.45414 2017 3 10 57822 -0.0068 0.3431 0.45198 2017 3 11 57823 -0.0072 0.3449 0.44968 2017 3 12 57824 -0.0074 0.3468 0.44727 2017 3 13 57825 -0.0077 0.3487 0.44477 2017 3 14 57826 -0.0079 0.3505 0.44222 2017 3 15 57827 -0.0081 0.3524 0.43970 2017 3 16 57828 -0.0083 0.3543 0.43722 2017 3 17 57829 -0.0084 0.3561 0.43480 2017 3 18 57830 -0.0085 0.3580 0.43241 2017 3 19 57831 -0.0085 0.3599 0.43011 2017 3 20 57832 -0.0086 0.3618 0.42789 2017 3 21 57833 -0.0085 0.3637 0.42573 2017 3 22 57834 -0.0085 0.3655 0.42360 2017 3 23 57835 -0.0084 0.3674 0.42147 2017 3 24 57836 -0.0083 0.3693 0.41925 2017 3 25 57837 -0.0081 0.3712 0.41692 2017 3 26 57838 -0.0080 0.3731 0.41449 2017 3 27 57839 -0.0077 0.3749 0.41195 2017 3 28 57840 -0.0075 0.3768 0.40932 2017 3 29 57841 -0.0072 0.3787 0.40672 2017 3 30 57842 -0.0069 0.3805 0.40423 2017 3 31 57843 -0.0065 0.3824 0.40179 2017 4 1 57844 -0.0061 0.3842 0.39960 2017 4 2 57845 -0.0057 0.3861 0.39752 2017 4 3 57846 -0.0053 0.3879 0.39548 2017 4 4 57847 -0.0048 0.3898 0.39352 2017 4 5 57848 -0.0043 0.3916 0.39156 2017 4 6 57849 -0.0037 0.3934 0.38959 2017 4 7 57850 -0.0031 0.3952 0.38764 2017 4 8 57851 -0.0025 0.3970 0.38561 2017 4 9 57852 -0.0019 0.3988 0.38353 2017 4 10 57853 -0.0012 0.4006 0.38141 2017 4 11 57854 -0.0005 0.4024 0.37933 2017 4 12 57855 0.0002 0.4041 0.37730 2017 4 13 57856 0.0010 0.4059 0.37527 2017 4 14 57857 0.0018 0.4076 0.37335 2017 4 15 57858 0.0027 0.4093 0.37154 2017 4 16 57859 0.0035 0.4110 0.36975 2017 4 17 57860 0.0044 0.4127 0.36803 2017 4 18 57861 0.0053 0.4144 0.36641 2017 4 19 57862 0.0063 0.4161 0.36480 2017 4 20 57863 0.0073 0.4178 0.36318 2017 4 21 57864 0.0083 0.4194 0.36140 2017 4 22 57865 0.0093 0.4210 0.35948 2017 4 23 57866 0.0104 0.4226 0.35736 2017 4 24 57867 0.0115 0.4242 0.35515 2017 4 25 57868 0.0126 0.4258 0.35286 2017 4 26 57869 0.0137 0.4274 0.35059 2017 4 27 57870 0.0149 0.4289 0.34849 2017 4 28 57871 0.0161 0.4305 0.34662 2017 4 29 57872 0.0173 0.4320 0.34494 2017 4 30 57873 0.0186 0.4335 0.34341 2017 5 1 57874 0.0199 0.4349 0.34204 2017 5 2 57875 0.0212 0.4364 0.34073 2017 5 3 57876 0.0225 0.4378 0.33948 2017 5 4 57877 0.0239 0.4392 0.33815 2017 5 5 57878 0.0252 0.4406 0.33679 2017 5 6 57879 0.0266 0.4420 0.33536 2017 5 7 57880 0.0281 0.4433 0.33384 2017 5 8 57881 0.0295 0.4447 0.33229 2017 5 9 57882 0.0310 0.4460 0.33076 2017 5 10 57883 0.0325 0.4472 0.32931 2017 5 11 57884 0.0340 0.4485 0.32794 2017 5 12 57885 0.0355 0.4497 0.32675 2017 5 13 57886 0.0371 0.4510 0.32567 2017 5 14 57887 0.0386 0.4521 0.32469 2017 5 15 57888 0.0402 0.4533 0.32378 2017 5 16 57889 0.0418 0.4544 0.32289 2017 5 17 57890 0.0435 0.4556 0.32195 2017 5 18 57891 0.0451 0.4567 0.32093 2017 5 19 57892 0.0468 0.4577 0.31979 2017 5 20 57893 0.0484 0.4588 0.31859 2017 5 21 57894 0.0501 0.4598 0.31725 2017 5 22 57895 0.0519 0.4608 0.31576 2017 5 23 57896 0.0536 0.4617 0.31416 2017 5 24 57897 0.0553 0.4627 0.31252 2017 5 25 57898 0.0571 0.4636 0.31099 2017 5 26 57899 0.0589 0.4645 0.30957 2017 5 27 57900 0.0606 0.4653 0.30831 2017 5 28 57901 0.0624 0.4662 0.30710 2017 5 29 57902 0.0643 0.4670 0.30596 2017 5 30 57903 0.0661 0.4677 0.30484 2017 5 31 57904 0.0679 0.4685 0.30370 2017 6 1 57905 0.0698 0.4692 0.30253 2017 6 2 57906 0.0716 0.4699 0.30134 2017 6 3 57907 0.0735 0.4706 0.30019 2017 6 4 57908 0.0754 0.4712 0.29908 2017 6 5 57909 0.0772 0.4718 0.29799 2017 6 6 57910 0.0791 0.4724 0.29691 2017 6 7 57911 0.0810 0.4729 0.29590 2017 6 8 57912 0.0829 0.4734 0.29508 2017 6 9 57913 0.0848 0.4739 0.29447 2017 6 10 57914 0.0868 0.4744 0.29402 2017 6 11 57915 0.0887 0.4748 0.29354 2017 6 12 57916 0.0906 0.4752 0.29301 2017 6 13 57917 0.0925 0.4756 0.29251 2017 6 14 57918 0.0945 0.4759 0.29197 2017 6 15 57919 0.0964 0.4763 0.29136 2017 6 16 57920 0.0984 0.4765 0.29061 2017 6 17 57921 0.1003 0.4768 0.28979 2017 6 18 57922 0.1023 0.4770 0.28882 2017 6 19 57923 0.1042 0.4772 0.28776 2017 6 20 57924 0.1061 0.4774 0.28669 2017 6 21 57925 0.1081 0.4775 0.28576 2017 6 22 57926 0.1100 0.4776 0.28494 2017 6 23 57927 0.1120 0.4777 0.28427 2017 6 24 57928 0.1139 0.4777 0.28366 2017 6 25 57929 0.1159 0.4778 0.28305 2017 6 26 57930 0.1178 0.4777 0.28243 2017 6 27 57931 0.1197 0.4777 0.28172 2017 6 28 57932 0.1217 0.4776 0.28092 2017 6 29 57933 0.1236 0.4775 0.28005 2017 6 30 57934 0.1255 0.4774 0.27921 2017 7 1 57935 0.1274 0.4772 0.27841 2017 7 2 57936 0.1293 0.4771 0.27764 2017 7 3 57937 0.1312 0.4768 0.27690 2017 7 4 57938 0.1331 0.4766 0.27628 2017 7 5 57939 0.1350 0.4763 0.27575 2017 7 6 57940 0.1369 0.4760 0.27540 2017 7 7 57941 0.1388 0.4757 0.27514 2017 7 8 57942 0.1406 0.4753 0.27499 2017 7 9 57943 0.1425 0.4749 0.27485 2017 7 10 57944 0.1443 0.4745 0.27464 2017 7 11 57945 0.1462 0.4741 0.27436 2017 7 12 57946 0.1480 0.4736 0.27396 2017 7 13 57947 0.1498 0.4731 0.27340 2017 7 14 57948 0.1516 0.4726 0.27275 2017 7 15 57949 0.1534 0.4720 0.27204 2017 7 16 57950 0.1551 0.4714 0.27115 2017 7 17 57951 0.1569 0.4708 0.27016 2017 7 18 57952 0.1586 0.4702 0.26917 2017 7 19 57953 0.1604 0.4695 0.26819 2017 7 20 57954 0.1621 0.4688 0.26731 2017 7 21 57955 0.1638 0.4681 0.26650 2017 7 22 57956 0.1654 0.4674 0.26578 2017 7 23 57957 0.1671 0.4666 0.26501 2017 7 24 57958 0.1687 0.4658 0.26422 2017 7 25 57959 0.1704 0.4650 0.26337 2017 7 26 57960 0.1720 0.4641 0.26246 2017 7 27 57961 0.1736 0.4633 0.26159 2017 7 28 57962 0.1751 0.4624 0.26072 2017 7 29 57963 0.1767 0.4615 0.25988 2017 7 30 57964 0.1782 0.4605 0.25909 2017 7 31 57965 0.1797 0.4596 0.25836 2017 8 1 57966 0.1812 0.4586 0.25777 2017 8 2 57967 0.1827 0.4576 0.25731 2017 8 3 57968 0.1841 0.4565 0.25694 2017 8 4 57969 0.1856 0.4555 0.25660 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) 57582 -100.99 0.13 -13.36 0.07 57583 -101.22 0.13 -13.27 0.07 57584 -101.48 0.13 -13.08 0.07 57585 -101.76 0.30 -12.88 0.15 57586 -101.98 0.30 -12.78 0.03 57587 -102.06 0.30 -12.84 0.03 57588 -101.95 0.30 -13.01 0.03 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 57541 -94.2 -12.7 57542 -94.7 -12.9 57543 -95.2 -13.3 57544 -95.5 -13.5 57545 -95.5 -13.4 57546 -95.1 -13.3 57547 -94.7 -13.4 57548 -94.6 -13.5 57549 -94.9 -13.6 57550 -95.6 -13.6 57551 -96.1 -13.5 57552 -96.2 -13.5 57553 -96.2 -13.4 57554 -96.2 -13.4 57555 -96.5 -13.3 57556 -96.8 -13.1 57557 -97.0 -13.1 57558 -97.1 -13.1 57559 -97.2 -13.1 57560 -97.1 -13.2 57561 -97.1 -13.2 57562 -97.3 -13.1 57563 -97.6 -13.1 57564 -97.9 -13.1 57565 -97.9 -13.1 57566 -97.6 -12.9 57567 -97.5 -12.8 57568 -97.8 -12.6 57569 -98.4 -12.5 57570 -99.2 -12.8 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57582 0.082 0.052 -0.057 0.070 57583 0.079 0.052 -0.067 0.070 57584 0.094 0.052 -0.080 0.070 57585 0.108 0.119 -0.103 0.150 57586 0.123 0.119 -0.119 0.030 57587 0.140 0.119 -0.124 0.030 57588 0.168 0.119 -0.131 0.030 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 57541 0.09 0.00 57542 0.13 0.01 57543 0.15 -0.06 57544 0.16 -0.07 57545 0.14 -0.01 57546 0.16 -0.02 57547 0.14 -0.12 57548 0.13 -0.08 57549 0.17 -0.05 57550 0.14 -0.02 57551 0.11 0.02 57552 0.08 -0.05 57553 0.05 0.00 57554 0.08 -0.08 57555 0.08 -0.10 57556 0.10 -0.03 57557 0.12 -0.11 57558 0.15 -0.12 57559 0.14 -0.07 57560 0.17 -0.11 57561 0.17 -0.05 57562 0.15 0.08 57563 0.14 0.07 57564 0.10 0.03 57565 0.08 -0.06 57566 0.11 -0.04 57567 0.10 -0.19 57568 0.07 -0.19 57569 0.07 -0.10 57570 0.06 -0.13 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).