********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 16 June 2016 Vol. XXIX No. 024 ______________________________________________________________________ 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 10 57549 0.10620 .00009 0.49716 .00009 -0.198043 0.000018 16 6 11 57550 0.10773 .00009 0.49634 .00009 -0.199007 0.000012 16 6 12 57551 0.10968 .00009 0.49534 .00009 -0.199966 0.000010 16 6 13 57552 0.11227 .00009 0.49438 .00009 -0.200820 0.000007 16 6 14 57553 0.11519 .00009 0.49411 .00009 -0.201688 0.000007 16 6 15 57554 0.11803 .00009 0.49447 .00009 -0.202512 0.000007 16 6 16 57555 0.12077 .00009 0.49484 .00009 -0.203200 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 = 0.0981 - 0.0151 cos A + 0.1343 sin A + 0.0421 cos C + 0.0067 sin C y = 0.3629 + 0.1254 cos A + 0.0153 sin A + 0.0067 cos C - 0.0421 sin C UT1-UTC = -0.1816 - 0.00147 (MJD - 57563) - (UT2-UT1) where A = 2*pi*(MJD-57555)/365.25 and C = 2*pi*(MJD-57555)/435. TAI-UTC(MJD 57556) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57555)**0.80 S t = 0.00025 (MJD-57555)**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 6 17 57556 0.1233 0.4951 -0.20378 2016 6 18 57557 0.1257 0.4951 -0.20424 2016 6 19 57558 0.1280 0.4950 -0.20460 2016 6 20 57559 0.1303 0.4947 -0.20489 2016 6 21 57560 0.1326 0.4943 -0.20513 2016 6 22 57561 0.1348 0.4940 -0.20538 2016 6 23 57562 0.1371 0.4937 -0.20572 2016 6 24 57563 0.1394 0.4934 -0.20617 2016 6 25 57564 0.1416 0.4931 -0.20674 2016 6 26 57565 0.1438 0.4927 -0.20743 2016 6 27 57566 0.1460 0.4923 -0.20824 2016 6 28 57567 0.1481 0.4919 -0.20912 2016 6 29 57568 0.1502 0.4914 -0.21004 2016 6 30 57569 0.1522 0.4907 -0.21092 2016 7 1 57570 0.1544 0.4900 -0.21172 2016 7 2 57571 0.1565 0.4893 -0.21239 2016 7 3 57572 0.1586 0.4886 -0.21298 2016 7 4 57573 0.1607 0.4878 -0.21351 2016 7 5 57574 0.1628 0.4870 -0.21405 2016 7 6 57575 0.1649 0.4862 -0.21463 2016 7 7 57576 0.1670 0.4853 -0.21529 2016 7 8 57577 0.1690 0.4845 -0.21601 2016 7 9 57578 0.1710 0.4835 -0.21680 2016 7 10 57579 0.1730 0.4826 -0.21763 2016 7 11 57580 0.1750 0.4816 -0.21848 2016 7 12 57581 0.1770 0.4806 -0.21931 2016 7 13 57582 0.1789 0.4796 -0.22008 2016 7 14 57583 0.1809 0.4785 -0.22079 2016 7 15 57584 0.1828 0.4774 -0.22140 2016 7 16 57585 0.1847 0.4763 -0.22193 2016 7 17 57586 0.1866 0.4751 -0.22238 2016 7 18 57587 0.1884 0.4740 -0.22279 2016 7 19 57588 0.1902 0.4728 -0.22321 2016 7 20 57589 0.1920 0.4715 -0.22368 2016 7 21 57590 0.1938 0.4703 -0.22424 2016 7 22 57591 0.1955 0.4690 -0.22492 2016 7 23 57592 0.1973 0.4677 -0.22575 2016 7 24 57593 0.1990 0.4663 -0.22669 2016 7 25 57594 0.2007 0.4649 -0.22769 2016 7 26 57595 0.2023 0.4635 -0.22870 2016 7 27 57596 0.2039 0.4621 -0.22965 2016 7 28 57597 0.2055 0.4607 -0.23049 2016 7 29 57598 0.2071 0.4592 -0.23119 2016 7 30 57599 0.2087 0.4577 -0.23177 2016 7 31 57600 0.2102 0.4562 -0.23225 2016 8 1 57601 0.2117 0.4546 -0.23270 2016 8 2 57602 0.2131 0.4531 -0.23317 2016 8 3 57603 0.2146 0.4515 -0.23368 2016 8 4 57604 0.2160 0.4499 -0.23425 2016 8 5 57605 0.2173 0.4482 -0.23489 2016 8 6 57606 0.2187 0.4466 -0.23558 2016 8 7 57607 0.2200 0.4449 -0.23629 2016 8 8 57608 0.2213 0.4432 -0.23699 2016 8 9 57609 0.2225 0.4415 -0.23766 2016 8 10 57610 0.2237 0.4398 -0.23828 2016 8 11 57611 0.2249 0.4380 -0.23884 2016 8 12 57612 0.2261 0.4362 -0.23934 2016 8 13 57613 0.2272 0.4344 -0.23980 2016 8 14 57614 0.2283 0.4326 -0.24024 2016 8 15 57615 0.2293 0.4308 -0.24070 2016 8 16 57616 0.2304 0.4290 -0.24123 2016 8 17 57617 0.2314 0.4271 -0.24188 2016 8 18 57618 0.2323 0.4252 -0.24269 2016 8 19 57619 0.2332 0.4234 -0.24369 2016 8 20 57620 0.2341 0.4215 -0.24486 2016 8 21 57621 0.2350 0.4195 -0.24616 2016 8 22 57622 0.2358 0.4176 -0.24751 2016 8 23 57623 0.2366 0.4157 -0.24882 2016 8 24 57624 0.2373 0.4137 -0.25004 2016 8 25 57625 0.2380 0.4118 -0.25113 2016 8 26 57626 0.2387 0.4098 -0.25209 2016 8 27 57627 0.2393 0.4078 -0.25296 2016 8 28 57628 0.2399 0.4058 -0.25377 2016 8 29 57629 0.2405 0.4038 -0.25460 2016 8 30 57630 0.2410 0.4018 -0.25548 2016 8 31 57631 0.2415 0.3997 -0.25644 2016 9 1 57632 0.2420 0.3977 -0.25749 2016 9 2 57633 0.2424 0.3957 -0.25861 2016 9 3 57634 0.2428 0.3936 -0.25976 2016 9 4 57635 0.2431 0.3916 -0.26091 2016 9 5 57636 0.2434 0.3895 -0.26204 2016 9 6 57637 0.2437 0.3875 -0.26312 2016 9 7 57638 0.2440 0.3854 -0.26415 2016 9 8 57639 0.2442 0.3833 -0.26512 2016 9 9 57640 0.2443 0.3812 -0.26604 2016 9 10 57641 0.2444 0.3792 -0.26694 2016 9 11 57642 0.2445 0.3771 -0.26786 2016 9 12 57643 0.2446 0.3750 -0.26884 2016 9 13 57644 0.2446 0.3729 -0.26994 2016 9 14 57645 0.2446 0.3708 -0.27119 2016 9 15 57646 0.2445 0.3688 -0.27264 2016 9 16 57647 0.2444 0.3667 -0.27430 2016 9 17 57648 0.2443 0.3646 -0.27615 2016 9 18 57649 0.2441 0.3625 -0.27811 2016 9 19 57650 0.2439 0.3604 -0.28009 2016 9 20 57651 0.2436 0.3584 -0.28199 2016 9 21 57652 0.2433 0.3563 -0.28377 2016 9 22 57653 0.2430 0.3542 -0.28540 2016 9 23 57654 0.2427 0.3522 -0.28691 2016 9 24 57655 0.2423 0.3501 -0.28834 2016 9 25 57656 0.2418 0.3481 -0.28977 2016 9 26 57657 0.2414 0.3460 -0.29122 2016 9 27 57658 0.2408 0.3440 -0.29275 2016 9 28 57659 0.2403 0.3420 -0.29435 2016 9 29 57660 0.2397 0.3399 -0.29601 2016 9 30 57661 0.2391 0.3379 -0.29773 2016 10 1 57662 0.2385 0.3359 -0.29946 2016 10 2 57663 0.2378 0.3339 -0.30118 2016 10 3 57664 0.2370 0.3320 -0.30281 2016 10 4 57665 0.2363 0.3300 -0.30439 2016 10 5 57666 0.2355 0.3280 -0.30589 2016 10 6 57667 0.2347 0.3261 -0.30733 2016 10 7 57668 0.2338 0.3241 -0.30873 2016 10 8 57669 0.2329 0.3222 -0.31010 2016 10 9 57670 0.2320 0.3203 -0.31151 2016 10 10 57671 0.2310 0.3184 -0.31298 2016 10 11 57672 0.2300 0.3165 -0.31458 2016 10 12 57673 0.2290 0.3147 -0.31635 2016 10 13 57674 0.2279 0.3128 -0.31830 2016 10 14 57675 0.2269 0.3110 -0.32045 2016 10 15 57676 0.2257 0.3092 -0.32274 2016 10 16 57677 0.2246 0.3073 -0.32510 2016 10 17 57678 0.2234 0.3056 -0.32742 2016 10 18 57679 0.2222 0.3038 -0.32962 2016 10 19 57680 0.2209 0.3021 -0.33165 2016 10 20 57681 0.2196 0.3003 -0.33353 2016 10 21 57682 0.2183 0.2986 -0.33529 2016 10 22 57683 0.2170 0.2969 -0.33700 2016 10 23 57684 0.2156 0.2953 -0.33870 2016 10 24 57685 0.2142 0.2936 -0.34044 2016 10 25 57686 0.2128 0.2920 -0.34223 2016 10 26 57687 0.2113 0.2904 -0.34408 2016 10 27 57688 0.2098 0.2888 -0.34596 2016 10 28 57689 0.2083 0.2872 -0.34785 2016 10 29 57690 0.2068 0.2857 -0.34971 2016 10 30 57691 0.2052 0.2842 -0.35153 2016 10 31 57692 0.2036 0.2827 -0.35327 2016 11 1 57693 0.2020 0.2812 -0.35493 2016 11 2 57694 0.2004 0.2798 -0.35651 2016 11 3 57695 0.1987 0.2784 -0.35800 2016 11 4 57696 0.1970 0.2770 -0.35945 2016 11 5 57697 0.1953 0.2756 -0.36089 2016 11 6 57698 0.1936 0.2743 -0.36236 2016 11 7 57699 0.1918 0.2730 -0.36390 2016 11 8 57700 0.1900 0.2717 -0.36558 2016 11 9 57701 0.1882 0.2704 -0.36741 2016 11 10 57702 0.1864 0.2692 -0.36942 2016 11 11 57703 0.1846 0.2680 -0.37158 2016 11 12 57704 0.1827 0.2668 -0.37385 2016 11 13 57705 0.1808 0.2656 -0.37614 2016 11 14 57706 0.1789 0.2645 -0.37837 2016 11 15 57707 0.1770 0.2634 -0.38045 2016 11 16 57708 0.1751 0.2624 -0.38237 2016 11 17 57709 0.1731 0.2614 -0.38414 2016 11 18 57710 0.1711 0.2604 -0.38583 2016 11 19 57711 0.1691 0.2594 -0.38748 2016 11 20 57712 0.1671 0.2584 -0.38915 2016 11 21 57713 0.1651 0.2575 -0.39086 2016 11 22 57714 0.1631 0.2567 -0.39261 2016 11 23 57715 0.1610 0.2558 -0.39437 2016 11 24 57716 0.1590 0.2550 -0.39614 2016 11 25 57717 0.1569 0.2542 -0.39788 2016 11 26 57718 0.1548 0.2535 -0.39957 2016 11 27 57719 0.1527 0.2527 -0.40119 2016 11 28 57720 0.1506 0.2521 -0.40272 2016 11 29 57721 0.1485 0.2514 -0.40416 2016 11 30 57722 0.1463 0.2508 -0.40552 2016 12 1 57723 0.1442 0.2502 -0.40681 2016 12 2 57724 0.1420 0.2496 -0.40807 2016 12 3 57725 0.1399 0.2491 -0.40934 2016 12 4 57726 0.1377 0.2486 -0.41067 2016 12 5 57727 0.1355 0.2482 -0.41209 2016 12 6 57728 0.1334 0.2477 -0.41365 2016 12 7 57729 0.1312 0.2473 -0.41537 2016 12 8 57730 0.1290 0.2470 -0.41723 2016 12 9 57731 0.1268 0.2467 -0.41921 2016 12 10 57732 0.1246 0.2464 -0.42125 2016 12 11 57733 0.1224 0.2461 -0.42328 2016 12 12 57734 0.1202 0.2459 -0.42523 2016 12 13 57735 0.1180 0.2457 -0.42705 2016 12 14 57736 0.1158 0.2455 -0.42875 2016 12 15 57737 0.1135 0.2454 -0.43036 2016 12 16 57738 0.1113 0.2453 -0.43194 2016 12 17 57739 0.1091 0.2453 -0.43355 2016 12 18 57740 0.1069 0.2453 -0.43523 2016 12 19 57741 0.1047 0.2453 -0.43698 2016 12 20 57742 0.1025 0.2453 -0.43879 2016 12 21 57743 0.1003 0.2454 -0.44064 2016 12 22 57744 0.0981 0.2455 -0.44251 2016 12 23 57745 0.0959 0.2457 -0.44437 2016 12 24 57746 0.0937 0.2459 -0.44620 2016 12 25 57747 0.0915 0.2461 -0.44798 2016 12 26 57748 0.0893 0.2463 -0.44970 2016 12 27 57749 0.0872 0.2466 -0.45136 2016 12 28 57750 0.0850 0.2469 -0.45298 2016 12 29 57751 0.0828 0.2473 -0.45455 2016 12 30 57752 0.0807 0.2477 -0.45611 2016 12 31 57753 0.0785 0.2481 -0.45768 2017 1 1 57754 0.0764 0.2486 -0.45929 2017 1 2 57755 0.0743 0.2490 -0.46095 2017 1 3 57756 0.0722 0.2496 -0.46268 2017 1 4 57757 0.0701 0.2501 -0.46449 2017 1 5 57758 0.0680 0.2507 -0.46636 2017 1 6 57759 0.0659 0.2513 -0.46826 2017 1 7 57760 0.0638 0.2520 -0.47015 2017 1 8 57761 0.0618 0.2526 -0.47199 2017 1 9 57762 0.0598 0.2534 -0.47372 2017 1 10 57763 0.0577 0.2541 -0.47535 2017 1 11 57764 0.0557 0.2549 -0.47689 2017 1 12 57765 0.0537 0.2557 -0.47837 2017 1 13 57766 0.0518 0.2565 -0.47985 2017 1 14 57767 0.0498 0.2574 -0.48137 2017 1 15 57768 0.0479 0.2583 -0.48294 2017 1 16 57769 0.0459 0.2592 -0.48455 2017 1 17 57770 0.0440 0.2602 -0.48615 2017 1 18 57771 0.0421 0.2611 -0.48771 2017 1 19 57772 0.0403 0.2622 -0.48916 2017 1 20 57773 0.0384 0.2632 -0.49048 2017 1 21 57774 0.0366 0.2643 -0.49167 2017 1 22 57775 0.0348 0.2654 -0.49274 2017 1 23 57776 0.0330 0.2665 -0.49370 2017 1 24 57777 0.0312 0.2677 -0.49455 2017 1 25 57778 0.0295 0.2688 -0.49530 2017 1 26 57779 0.0278 0.2701 -0.49608 2017 1 27 57780 0.0261 0.2713 -0.49689 2017 1 28 57781 0.0244 0.2726 -0.49783 2017 1 29 57782 0.0228 0.2738 -0.49898 2017 1 30 57783 0.0211 0.2752 -0.50035 2017 1 31 57784 0.0195 0.2765 -0.50193 2017 2 1 57785 0.0180 0.2779 -0.50363 2017 2 2 57786 0.0164 0.2793 -0.50545 2017 2 3 57787 0.0149 0.2807 -0.50721 2017 2 4 57788 0.0134 0.2821 -0.50892 2017 2 5 57789 0.0119 0.2836 -0.51051 2017 2 6 57790 0.0105 0.2850 -0.51198 2017 2 7 57791 0.0091 0.2866 -0.51334 2017 2 8 57792 0.0077 0.2881 -0.51467 2017 2 9 57793 0.0063 0.2896 -0.51601 2017 2 10 57794 0.0050 0.2912 -0.51740 2017 2 11 57795 0.0037 0.2928 -0.51881 2017 2 12 57796 0.0025 0.2944 -0.52029 2017 2 13 57797 0.0012 0.2960 -0.52185 2017 2 14 57798 0.0000 0.2977 -0.52349 2017 2 15 57799 -0.0012 0.2993 -0.52517 2017 2 16 57800 -0.0023 0.3010 -0.52680 2017 2 17 57801 -0.0034 0.3027 -0.52839 2017 2 18 57802 -0.0045 0.3045 -0.52990 2017 2 19 57803 -0.0056 0.3062 -0.53140 2017 2 20 57804 -0.0066 0.3080 -0.53281 2017 2 21 57805 -0.0076 0.3097 -0.53416 2017 2 22 57806 -0.0085 0.3115 -0.53549 2017 2 23 57807 -0.0094 0.3133 -0.53683 2017 2 24 57808 -0.0103 0.3151 -0.53825 2017 2 25 57809 -0.0112 0.3170 -0.53978 2017 2 26 57810 -0.0120 0.3188 -0.54146 2017 2 27 57811 -0.0128 0.3207 -0.54336 2017 2 28 57812 -0.0135 0.3225 -0.54550 2017 3 1 57813 -0.0143 0.3244 -0.54778 2017 3 2 57814 -0.0150 0.3263 -0.55001 2017 3 3 57815 -0.0156 0.3282 -0.55209 2017 3 4 57816 -0.0162 0.3301 -0.55400 2017 3 5 57817 -0.0168 0.3320 -0.55588 2017 3 6 57818 -0.0173 0.3340 -0.55772 2017 3 7 57819 -0.0179 0.3359 -0.55943 2017 3 8 57820 -0.0183 0.3379 -0.56110 2017 3 9 57821 -0.0188 0.3398 -0.56276 2017 3 10 57822 -0.0192 0.3418 -0.56453 2017 3 11 57823 -0.0196 0.3437 -0.56633 2017 3 12 57824 -0.0199 0.3457 -0.56824 2017 3 13 57825 -0.0202 0.3477 -0.57021 2017 3 14 57826 -0.0205 0.3497 -0.57215 2017 3 15 57827 -0.0207 0.3517 -0.57398 2017 3 16 57828 -0.0209 0.3537 -0.57572 2017 3 17 57829 -0.0210 0.3557 -0.57738 2017 3 18 57830 -0.0212 0.3577 -0.57900 2017 3 19 57831 -0.0212 0.3597 -0.58060 2017 3 20 57832 -0.0213 0.3617 -0.58216 2017 3 21 57833 -0.0213 0.3637 -0.58372 2017 3 22 57834 -0.0213 0.3657 -0.58533 2017 3 23 57835 -0.0212 0.3677 -0.58701 2017 3 24 57836 -0.0211 0.3697 -0.58875 2017 3 25 57837 -0.0210 0.3717 -0.59063 2017 3 26 57838 -0.0208 0.3737 -0.59271 2017 3 27 57839 -0.0206 0.3757 -0.59502 2017 3 28 57840 -0.0204 0.3777 -0.59746 2017 3 29 57841 -0.0201 0.3797 -0.59999 2017 3 30 57842 -0.0198 0.3817 -0.60241 2017 3 31 57843 -0.0195 0.3837 -0.60473 2017 4 1 57844 -0.0191 0.3856 -0.60685 2017 4 2 57845 -0.0187 0.3876 -0.60883 2017 4 3 57846 -0.0183 0.3896 -0.61075 2017 4 4 57847 -0.0178 0.3915 -0.61261 2017 4 5 57848 -0.0173 0.3935 -0.61450 2017 4 6 57849 -0.0167 0.3954 -0.61647 2017 4 7 57850 -0.0161 0.3974 -0.61845 2017 4 8 57851 -0.0155 0.3993 -0.62045 2017 4 9 57852 -0.0149 0.4012 -0.62258 2017 4 10 57853 -0.0142 0.4031 -0.62478 2017 4 11 57854 -0.0135 0.4050 -0.62697 2017 4 12 57855 -0.0127 0.4069 -0.62914 2017 4 13 57856 -0.0120 0.4088 -0.63124 2017 4 14 57857 -0.0111 0.4107 -0.63325 2017 4 15 57858 -0.0103 0.4125 -0.63514 2017 4 16 57859 -0.0094 0.4144 -0.63699 2017 4 17 57860 -0.0085 0.4162 -0.63874 2017 4 18 57861 -0.0076 0.4180 -0.64044 2017 4 19 57862 -0.0066 0.4198 -0.64212 2017 4 20 57863 -0.0056 0.4216 -0.64379 2017 4 21 57864 -0.0046 0.4233 -0.64555 2017 4 22 57865 -0.0035 0.4251 -0.64748 2017 4 23 57866 -0.0024 0.4268 -0.64960 2017 4 24 57867 -0.0013 0.4286 -0.65190 2017 4 25 57868 -0.0001 0.4303 -0.65429 2017 4 26 57869 0.0011 0.4319 -0.65665 2017 4 27 57870 0.0023 0.4336 -0.65894 2017 4 28 57871 0.0035 0.4353 -0.66111 2017 4 29 57872 0.0048 0.4369 -0.66309 2017 4 30 57873 0.0061 0.4385 -0.66486 2017 5 1 57874 0.0074 0.4401 -0.66650 2017 5 2 57875 0.0087 0.4417 -0.66817 2017 5 3 57876 0.0101 0.4432 -0.66989 2017 5 4 57877 0.0115 0.4447 -0.67168 2017 5 5 57878 0.0129 0.4462 -0.67354 2017 5 6 57879 0.0144 0.4477 -0.67548 2017 5 7 57880 0.0158 0.4492 -0.67736 2017 5 8 57881 0.0173 0.4506 -0.67924 2017 5 9 57882 0.0189 0.4521 -0.68102 2017 5 10 57883 0.0204 0.4534 -0.68271 2017 5 11 57884 0.0220 0.4548 -0.68432 2017 5 12 57885 0.0236 0.4562 -0.68580 2017 5 13 57886 0.0252 0.4575 -0.68714 2017 5 14 57887 0.0268 0.4588 -0.68845 2017 5 15 57888 0.0284 0.4601 -0.68964 2017 5 16 57889 0.0301 0.4613 -0.69081 2017 5 17 57890 0.0318 0.4625 -0.69201 2017 5 18 57891 0.0335 0.4637 -0.69327 2017 5 19 57892 0.0353 0.4649 -0.69464 2017 5 20 57893 0.0370 0.4660 -0.69612 2017 5 21 57894 0.0388 0.4672 -0.69772 2017 5 22 57895 0.0406 0.4682 -0.69939 2017 5 23 57896 0.0424 0.4693 -0.70117 2017 5 24 57897 0.0442 0.4703 -0.70292 2017 5 25 57898 0.0460 0.4713 -0.70453 2017 5 26 57899 0.0479 0.4723 -0.70603 2017 5 27 57900 0.0497 0.4733 -0.70728 2017 5 28 57901 0.0516 0.4742 -0.70847 2017 5 29 57902 0.0535 0.4751 -0.70960 2017 5 30 57903 0.0554 0.4759 -0.71074 2017 5 31 57904 0.0573 0.4768 -0.71188 2017 6 1 57905 0.0593 0.4776 -0.71312 2017 6 2 57906 0.0612 0.4784 -0.71442 2017 6 3 57907 0.0632 0.4791 -0.71576 2017 6 4 57908 0.0651 0.4798 -0.71704 2017 6 5 57909 0.0671 0.4805 -0.71831 2017 6 6 57910 0.0691 0.4811 -0.71951 2017 6 7 57911 0.0711 0.4818 -0.72069 2017 6 8 57912 0.0731 0.4824 -0.72183 2017 6 9 57913 0.0751 0.4829 -0.72290 2017 6 10 57914 0.0771 0.4835 -0.72386 2017 6 11 57915 0.0791 0.4840 -0.72469 2017 6 12 57916 0.0811 0.4844 -0.72555 2017 6 13 57917 0.0832 0.4849 -0.72633 2017 6 14 57918 0.0852 0.4853 -0.72723 2017 6 15 57919 0.0872 0.4856 -0.72816 2017 6 16 57920 0.0893 0.4860 -0.72916 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) 57533 -93.57 0.25 -13.68 0.14 57534 -93.81 0.25 -13.76 0.14 57535 -93.89 0.25 -13.77 0.14 57536 -93.72 0.67 -13.67 0.21 57537 -93.42 0.67 -13.48 0.21 57538 -93.25 0.13 -13.24 0.11 57539 -93.35 0.30 -12.97 0.10 57540 -93.75 0.30 -12.73 0.10 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57533 0.222 0.099 0.006 0.140 57534 0.181 0.099 0.037 0.140 57535 0.143 0.099 0.058 0.140 57536 0.109 0.267 0.056 0.210 57537 0.084 0.267 0.036 0.210 57538 0.065 0.052 0.010 0.110 57539 0.059 0.119 -0.001 0.100 57540 0.047 0.119 0.011 0.100 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).