********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 June 2016 Vol. XXIX No. 023 ______________________________________________________________________ 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. * * * * Please note that due to scheduled network maintenance, users may * * not be able to obtain EOP data and information from * * maia.usno.navy.mil for a short interval of time during the hours of * * 22:00 UTC on June 9, 2016 to 03:59 UTC on June 10, 2016. During * * this time, users may still obtain EOP data from the other sites * * listed above. * * * * 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 3 57542 0.09710 .00009 0.49720 .00009 -0.189941 0.000006 16 6 4 57543 0.09878 .00009 0.49739 .00009 -0.191500 0.000013 16 6 5 57544 0.10019 .00009 0.49747 .00009 -0.192863 0.000014 16 6 6 57545 0.10152 .00009 0.49757 .00009 -0.194102 0.000009 16 6 7 57546 0.10272 .00009 0.49782 .00009 -0.195172 0.000008 16 6 8 57547 0.10376 .00009 0.49790 .00009 -0.196174 0.000009 16 6 9 57548 0.10484 .00009 0.49776 .00009 -0.197172 0.000009 _______________________________________________________________________ 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 = 0.0967 - 0.0303 cos A + 0.1350 sin A + 0.0423 cos C + 0.0078 sin C y = 0.3639 + 0.1257 cos A + 0.0297 sin A + 0.0078 cos C - 0.0423 sin C UT1-UTC = -0.1734 - 0.00147 (MJD - 57556) - (UT2-UT1) where A = 2*pi*(MJD-57548)/365.25 and C = 2*pi*(MJD-57548)/435. TAI-UTC(MJD 57549) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57548)**0.80 S t = 0.00025 (MJD-57548)**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 10 57549 0.1063 0.4975 -0.19811 2016 6 11 57550 0.1079 0.4972 -0.19901 2016 6 12 57551 0.1098 0.4969 -0.19989 2016 6 13 57552 0.1119 0.4967 -0.20072 2016 6 14 57553 0.1141 0.4965 -0.20149 2016 6 15 57554 0.1162 0.4963 -0.20217 2016 6 16 57555 0.1183 0.4960 -0.20274 2016 6 17 57556 0.1204 0.4958 -0.20322 2016 6 18 57557 0.1226 0.4955 -0.20361 2016 6 19 57558 0.1247 0.4951 -0.20395 2016 6 20 57559 0.1269 0.4948 -0.20427 2016 6 21 57560 0.1291 0.4945 -0.20461 2016 6 22 57561 0.1314 0.4942 -0.20503 2016 6 23 57562 0.1336 0.4939 -0.20557 2016 6 24 57563 0.1358 0.4936 -0.20626 2016 6 25 57564 0.1380 0.4933 -0.20713 2016 6 26 57565 0.1402 0.4929 -0.20815 2016 6 27 57566 0.1424 0.4925 -0.20932 2016 6 28 57567 0.1445 0.4920 -0.21058 2016 6 29 57568 0.1467 0.4915 -0.21188 2016 6 30 57569 0.1488 0.4909 -0.21315 2016 7 1 57570 0.1509 0.4903 -0.21431 2016 7 2 57571 0.1530 0.4897 -0.21534 2016 7 3 57572 0.1552 0.4890 -0.21624 2016 7 4 57573 0.1573 0.4883 -0.21705 2016 7 5 57574 0.1593 0.4876 -0.21780 2016 7 6 57575 0.1614 0.4869 -0.21853 2016 7 7 57576 0.1635 0.4861 -0.21928 2016 7 8 57577 0.1655 0.4852 -0.22006 2016 7 9 57578 0.1675 0.4844 -0.22085 2016 7 10 57579 0.1696 0.4835 -0.22164 2016 7 11 57580 0.1716 0.4825 -0.22240 2016 7 12 57581 0.1736 0.4816 -0.22310 2016 7 13 57582 0.1755 0.4806 -0.22372 2016 7 14 57583 0.1775 0.4796 -0.22425 2016 7 15 57584 0.1794 0.4785 -0.22469 2016 7 16 57585 0.1813 0.4774 -0.22504 2016 7 17 57586 0.1832 0.4763 -0.22533 2016 7 18 57587 0.1851 0.4752 -0.22558 2016 7 19 57588 0.1869 0.4740 -0.22583 2016 7 20 57589 0.1888 0.4728 -0.22613 2016 7 21 57590 0.1906 0.4716 -0.22655 2016 7 22 57591 0.1923 0.4703 -0.22710 2016 7 23 57592 0.1941 0.4691 -0.22780 2016 7 24 57593 0.1958 0.4677 -0.22863 2016 7 25 57594 0.1975 0.4664 -0.22953 2016 7 26 57595 0.1992 0.4650 -0.23045 2016 7 27 57596 0.2009 0.4637 -0.23133 2016 7 28 57597 0.2025 0.4622 -0.23212 2016 7 29 57598 0.2041 0.4608 -0.23279 2016 7 30 57599 0.2057 0.4593 -0.23335 2016 7 31 57600 0.2072 0.4579 -0.23384 2016 8 1 57601 0.2087 0.4563 -0.23429 2016 8 2 57602 0.2102 0.4548 -0.23477 2016 8 3 57603 0.2117 0.4533 -0.23532 2016 8 4 57604 0.2131 0.4517 -0.23593 2016 8 5 57605 0.2146 0.4501 -0.23662 2016 8 6 57606 0.2159 0.4484 -0.23734 2016 8 7 57607 0.2173 0.4468 -0.23809 2016 8 8 57608 0.2186 0.4451 -0.23883 2016 8 9 57609 0.2199 0.4434 -0.23953 2016 8 10 57610 0.2211 0.4417 -0.24018 2016 8 11 57611 0.2224 0.4400 -0.24077 2016 8 12 57612 0.2236 0.4383 -0.24130 2016 8 13 57613 0.2247 0.4365 -0.24178 2016 8 14 57614 0.2258 0.4347 -0.24223 2016 8 15 57615 0.2269 0.4329 -0.24271 2016 8 16 57616 0.2280 0.4311 -0.24324 2016 8 17 57617 0.2290 0.4293 -0.24388 2016 8 18 57618 0.2300 0.4274 -0.24468 2016 8 19 57619 0.2310 0.4255 -0.24566 2016 8 20 57620 0.2319 0.4237 -0.24681 2016 8 21 57621 0.2328 0.4218 -0.24808 2016 8 22 57622 0.2337 0.4199 -0.24940 2016 8 23 57623 0.2345 0.4179 -0.25069 2016 8 24 57624 0.2353 0.4160 -0.25188 2016 8 25 57625 0.2360 0.4140 -0.25293 2016 8 26 57626 0.2367 0.4121 -0.25386 2016 8 27 57627 0.2374 0.4101 -0.25470 2016 8 28 57628 0.2381 0.4081 -0.25551 2016 8 29 57629 0.2387 0.4061 -0.25633 2016 8 30 57630 0.2393 0.4041 -0.25722 2016 8 31 57631 0.2398 0.4021 -0.25820 2016 9 1 57632 0.2403 0.4001 -0.25926 2016 9 2 57633 0.2408 0.3981 -0.26041 2016 9 3 57634 0.2412 0.3960 -0.26160 2016 9 4 57635 0.2416 0.3940 -0.26280 2016 9 5 57636 0.2419 0.3919 -0.26400 2016 9 6 57637 0.2423 0.3899 -0.26516 2016 9 7 57638 0.2425 0.3878 -0.26628 2016 9 8 57639 0.2428 0.3858 -0.26734 2016 9 9 57640 0.2430 0.3837 -0.26837 2016 9 10 57641 0.2432 0.3816 -0.26937 2016 9 11 57642 0.2433 0.3796 -0.27039 2016 9 12 57643 0.2434 0.3775 -0.27146 2016 9 13 57644 0.2434 0.3754 -0.27264 2016 9 14 57645 0.2435 0.3733 -0.27397 2016 9 15 57646 0.2435 0.3712 -0.27549 2016 9 16 57647 0.2434 0.3692 -0.27720 2016 9 17 57648 0.2433 0.3671 -0.27909 2016 9 18 57649 0.2432 0.3650 -0.28107 2016 9 19 57650 0.2430 0.3629 -0.28306 2016 9 20 57651 0.2428 0.3608 -0.28497 2016 9 21 57652 0.2426 0.3588 -0.28675 2016 9 22 57653 0.2423 0.3567 -0.28838 2016 9 23 57654 0.2420 0.3546 -0.28988 2016 9 24 57655 0.2416 0.3526 -0.29132 2016 9 25 57656 0.2413 0.3505 -0.29274 2016 9 26 57657 0.2408 0.3485 -0.29416 2016 9 27 57658 0.2404 0.3464 -0.29566 2016 9 28 57659 0.2399 0.3444 -0.29723 2016 9 29 57660 0.2393 0.3423 -0.29887 2016 9 30 57661 0.2388 0.3403 -0.30056 2016 10 1 57662 0.2382 0.3383 -0.30226 2016 10 2 57663 0.2375 0.3363 -0.30394 2016 10 3 57664 0.2369 0.3343 -0.30558 2016 10 4 57665 0.2362 0.3323 -0.30715 2016 10 5 57666 0.2354 0.3303 -0.30866 2016 10 6 57667 0.2346 0.3284 -0.31009 2016 10 7 57668 0.2338 0.3264 -0.31147 2016 10 8 57669 0.2330 0.3245 -0.31284 2016 10 9 57670 0.2321 0.3226 -0.31422 2016 10 10 57671 0.2312 0.3206 -0.31568 2016 10 11 57672 0.2302 0.3187 -0.31726 2016 10 12 57673 0.2292 0.3169 -0.31900 2016 10 13 57674 0.2282 0.3150 -0.32094 2016 10 14 57675 0.2272 0.3131 -0.32306 2016 10 15 57676 0.2261 0.3113 -0.32533 2016 10 16 57677 0.2250 0.3095 -0.32766 2016 10 17 57678 0.2238 0.3077 -0.32995 2016 10 18 57679 0.2227 0.3059 -0.33212 2016 10 19 57680 0.2215 0.3041 -0.33413 2016 10 20 57681 0.2202 0.3024 -0.33598 2016 10 21 57682 0.2190 0.3006 -0.33771 2016 10 22 57683 0.2177 0.2989 -0.33938 2016 10 23 57684 0.2163 0.2972 -0.34105 2016 10 24 57685 0.2150 0.2955 -0.34276 2016 10 25 57686 0.2136 0.2939 -0.34452 2016 10 26 57687 0.2122 0.2922 -0.34633 2016 10 27 57688 0.2107 0.2906 -0.34817 2016 10 28 57689 0.2093 0.2890 -0.35003 2016 10 29 57690 0.2078 0.2875 -0.35186 2016 10 30 57691 0.2062 0.2859 -0.35364 2016 10 31 57692 0.2047 0.2844 -0.35536 2016 11 1 57693 0.2031 0.2829 -0.35699 2016 11 2 57694 0.2015 0.2814 -0.35854 2016 11 3 57695 0.1999 0.2800 -0.36002 2016 11 4 57696 0.1982 0.2786 -0.36144 2016 11 5 57697 0.1966 0.2772 -0.36286 2016 11 6 57698 0.1949 0.2758 -0.36432 2016 11 7 57699 0.1931 0.2744 -0.36586 2016 11 8 57700 0.1914 0.2731 -0.36752 2016 11 9 57701 0.1896 0.2718 -0.36935 2016 11 10 57702 0.1878 0.2706 -0.37135 2016 11 11 57703 0.1860 0.2693 -0.37351 2016 11 12 57704 0.1842 0.2681 -0.37578 2016 11 13 57705 0.1823 0.2669 -0.37807 2016 11 14 57706 0.1805 0.2658 -0.38030 2016 11 15 57707 0.1786 0.2646 -0.38238 2016 11 16 57708 0.1767 0.2635 -0.38430 2016 11 17 57709 0.1747 0.2625 -0.38608 2016 11 18 57710 0.1728 0.2614 -0.38777 2016 11 19 57711 0.1708 0.2604 -0.38943 2016 11 20 57712 0.1689 0.2595 -0.39111 2016 11 21 57713 0.1669 0.2585 -0.39282 2016 11 22 57714 0.1649 0.2576 -0.39457 2016 11 23 57715 0.1628 0.2567 -0.39634 2016 11 24 57716 0.1608 0.2558 -0.39812 2016 11 25 57717 0.1587 0.2550 -0.39987 2016 11 26 57718 0.1567 0.2542 -0.40157 2016 11 27 57719 0.1546 0.2535 -0.40320 2016 11 28 57720 0.1525 0.2527 -0.40474 2016 11 29 57721 0.1504 0.2520 -0.40619 2016 11 30 57722 0.1483 0.2514 -0.40757 2016 12 1 57723 0.1462 0.2507 -0.40888 2016 12 2 57724 0.1440 0.2501 -0.41017 2016 12 3 57725 0.1419 0.2496 -0.41147 2016 12 4 57726 0.1398 0.2490 -0.41284 2016 12 5 57727 0.1376 0.2485 -0.41431 2016 12 6 57728 0.1354 0.2481 -0.41593 2016 12 7 57729 0.1333 0.2476 -0.41771 2016 12 8 57730 0.1311 0.2472 -0.41965 2016 12 9 57731 0.1289 0.2468 -0.42173 2016 12 10 57732 0.1267 0.2465 -0.42388 2016 12 11 57733 0.1245 0.2462 -0.42605 2016 12 12 57734 0.1223 0.2459 -0.42816 2016 12 13 57735 0.1201 0.2457 -0.43018 2016 12 14 57736 0.1179 0.2455 -0.43210 2016 12 15 57737 0.1157 0.2453 -0.43396 2016 12 16 57738 0.1135 0.2452 -0.43583 2016 12 17 57739 0.1113 0.2451 -0.43775 2016 12 18 57740 0.1091 0.2450 -0.43974 2016 12 19 57741 0.1069 0.2450 -0.44181 2016 12 20 57742 0.1047 0.2450 -0.44392 2016 12 21 57743 0.1025 0.2451 -0.44602 2016 12 22 57744 0.1004 0.2451 -0.44807 2016 12 23 57745 0.0982 0.2452 -0.45002 2016 12 24 57746 0.0960 0.2454 -0.45184 2016 12 25 57747 0.0938 0.2455 -0.45350 2016 12 26 57748 0.0916 0.2457 -0.45501 2016 12 27 57749 0.0894 0.2460 -0.45638 2016 12 28 57750 0.0873 0.2463 -0.45764 2016 12 29 57751 0.0851 0.2466 -0.45885 2016 12 30 57752 0.0830 0.2469 -0.46004 2016 12 31 57753 0.0808 0.2473 -0.46127 2017 1 1 57754 0.0787 0.2477 -0.46257 2017 1 2 57755 0.0766 0.2481 -0.46397 2017 1 3 57756 0.0744 0.2486 -0.46549 2017 1 4 57757 0.0723 0.2491 -0.46710 2017 1 5 57758 0.0702 0.2496 -0.46878 2017 1 6 57759 0.0682 0.2502 -0.47046 2017 1 7 57760 0.0661 0.2508 -0.47210 2017 1 8 57761 0.0640 0.2514 -0.47362 2017 1 9 57762 0.0620 0.2521 -0.47500 2017 1 10 57763 0.0599 0.2528 -0.47621 2017 1 11 57764 0.0579 0.2535 -0.47730 2017 1 12 57765 0.0559 0.2543 -0.47832 2017 1 13 57766 0.0539 0.2551 -0.47937 2017 1 14 57767 0.0520 0.2559 -0.48050 2017 1 15 57768 0.0500 0.2567 -0.48175 2017 1 16 57769 0.0481 0.2576 -0.48313 2017 1 17 57770 0.0462 0.2585 -0.48459 2017 1 18 57771 0.0443 0.2595 -0.48607 2017 1 19 57772 0.0424 0.2605 -0.48754 2017 1 20 57773 0.0405 0.2615 -0.48889 2017 1 21 57774 0.0387 0.2625 -0.49016 2017 1 22 57775 0.0368 0.2635 -0.49132 2017 1 23 57776 0.0350 0.2646 -0.49238 2017 1 24 57777 0.0332 0.2657 -0.49336 2017 1 25 57778 0.0315 0.2669 -0.49432 2017 1 26 57779 0.0297 0.2680 -0.49527 2017 1 27 57780 0.0280 0.2692 -0.49627 2017 1 28 57781 0.0263 0.2705 -0.49730 2017 1 29 57782 0.0247 0.2717 -0.49843 2017 1 30 57783 0.0230 0.2730 -0.49974 2017 1 31 57784 0.0214 0.2743 -0.50127 2017 2 1 57785 0.0198 0.2756 -0.50296 2017 2 2 57786 0.0182 0.2770 -0.50472 2017 2 3 57787 0.0167 0.2783 -0.50653 2017 2 4 57788 0.0152 0.2797 -0.50829 2017 2 5 57789 0.0137 0.2812 -0.51004 2017 2 6 57790 0.0122 0.2826 -0.51166 2017 2 7 57791 0.0108 0.2841 -0.51317 2017 2 8 57792 0.0093 0.2856 -0.51462 2017 2 9 57793 0.0080 0.2871 -0.51606 2017 2 10 57794 0.0066 0.2886 -0.51756 2017 2 11 57795 0.0053 0.2902 -0.51911 2017 2 12 57796 0.0040 0.2917 -0.52074 2017 2 13 57797 0.0027 0.2933 -0.52249 2017 2 14 57798 0.0015 0.2949 -0.52434 2017 2 15 57799 0.0003 0.2966 -0.52622 2017 2 16 57800 -0.0009 0.2982 -0.52799 2017 2 17 57801 -0.0021 0.2999 -0.52957 2017 2 18 57802 -0.0032 0.3016 -0.53101 2017 2 19 57803 -0.0043 0.3033 -0.53245 2017 2 20 57804 -0.0053 0.3050 -0.53390 2017 2 21 57805 -0.0064 0.3068 -0.53524 2017 2 22 57806 -0.0073 0.3085 -0.53655 2017 2 23 57807 -0.0083 0.3103 -0.53786 2017 2 24 57808 -0.0092 0.3121 -0.53927 2017 2 25 57809 -0.0101 0.3139 -0.54075 2017 2 26 57810 -0.0110 0.3157 -0.54242 2017 2 27 57811 -0.0118 0.3175 -0.54427 2017 2 28 57812 -0.0126 0.3194 -0.54625 2017 3 1 57813 -0.0134 0.3212 -0.54826 2017 3 2 57814 -0.0141 0.3231 -0.55026 2017 3 3 57815 -0.0148 0.3250 -0.55222 2017 3 4 57816 -0.0154 0.3268 -0.55413 2017 3 5 57817 -0.0161 0.3287 -0.55598 2017 3 6 57818 -0.0167 0.3306 -0.55774 2017 3 7 57819 -0.0172 0.3326 -0.55946 2017 3 8 57820 -0.0177 0.3345 -0.56121 2017 3 9 57821 -0.0182 0.3364 -0.56301 2017 3 10 57822 -0.0187 0.3384 -0.56485 2017 3 11 57823 -0.0191 0.3403 -0.56676 2017 3 12 57824 -0.0195 0.3423 -0.56879 2017 3 13 57825 -0.0198 0.3442 -0.57091 2017 3 14 57826 -0.0201 0.3462 -0.57304 2017 3 15 57827 -0.0204 0.3482 -0.57515 2017 3 16 57828 -0.0206 0.3501 -0.57712 2017 3 17 57829 -0.0208 0.3521 -0.57900 2017 3 18 57830 -0.0210 0.3541 -0.58073 2017 3 19 57831 -0.0211 0.3561 -0.58239 2017 3 20 57832 -0.0212 0.3581 -0.58403 2017 3 21 57833 -0.0213 0.3601 -0.58564 2017 3 22 57834 -0.0213 0.3621 -0.58728 2017 3 23 57835 -0.0213 0.3640 -0.58901 2017 3 24 57836 -0.0213 0.3660 -0.59079 2017 3 25 57837 -0.0212 0.3680 -0.59266 2017 3 26 57838 -0.0211 0.3700 -0.59480 2017 3 27 57839 -0.0209 0.3720 -0.59717 2017 3 28 57840 -0.0207 0.3740 -0.59969 2017 3 29 57841 -0.0205 0.3760 -0.60233 2017 3 30 57842 -0.0203 0.3780 -0.60495 2017 3 31 57843 -0.0200 0.3799 -0.60748 2017 4 1 57844 -0.0196 0.3819 -0.60986 2017 4 2 57845 -0.0193 0.3839 -0.61213 2017 4 3 57846 -0.0189 0.3858 -0.61426 2017 4 4 57847 -0.0185 0.3878 -0.61630 2017 4 5 57848 -0.0180 0.3897 -0.61831 2017 4 6 57849 -0.0175 0.3917 -0.62027 2017 4 7 57850 -0.0170 0.3936 -0.62230 2017 4 8 57851 -0.0164 0.3955 -0.62441 2017 4 9 57852 -0.0158 0.3975 -0.62658 2017 4 10 57853 -0.0152 0.3994 -0.62879 2017 4 11 57854 -0.0145 0.4013 -0.63095 2017 4 12 57855 -0.0138 0.4032 -0.63301 2017 4 13 57856 -0.0131 0.4050 -0.63497 2017 4 14 57857 -0.0123 0.4069 -0.63685 2017 4 15 57858 -0.0115 0.4088 -0.63859 2017 4 16 57859 -0.0107 0.4106 -0.64020 2017 4 17 57860 -0.0098 0.4124 -0.64171 2017 4 18 57861 -0.0089 0.4142 -0.64324 2017 4 19 57862 -0.0080 0.4160 -0.64485 2017 4 20 57863 -0.0071 0.4178 -0.64655 2017 4 21 57864 -0.0061 0.4196 -0.64839 2017 4 22 57865 -0.0051 0.4214 -0.65042 2017 4 23 57866 -0.0040 0.4231 -0.65256 2017 4 24 57867 -0.0029 0.4248 -0.65489 2017 4 25 57868 -0.0018 0.4266 -0.65729 2017 4 26 57869 -0.0007 0.4282 -0.65971 2017 4 27 57870 0.0005 0.4299 -0.66210 2017 4 28 57871 0.0016 0.4316 -0.66432 2017 4 29 57872 0.0029 0.4332 -0.66635 2017 4 30 57873 0.0041 0.4348 -0.66828 2017 5 1 57874 0.0054 0.4365 -0.67005 2017 5 2 57875 0.0067 0.4380 -0.67177 2017 5 3 57876 0.0080 0.4396 -0.67350 2017 5 4 57877 0.0094 0.4411 -0.67524 2017 5 5 57878 0.0107 0.4427 -0.67703 2017 5 6 57879 0.0121 0.4442 -0.67881 2017 5 7 57880 0.0136 0.4456 -0.68058 2017 5 8 57881 0.0150 0.4471 -0.68225 2017 5 9 57882 0.0165 0.4485 -0.68391 2017 5 10 57883 0.0180 0.4500 -0.68546 2017 5 11 57884 0.0195 0.4513 -0.68685 2017 5 12 57885 0.0211 0.4527 -0.68818 2017 5 13 57886 0.0226 0.4541 -0.68930 2017 5 14 57887 0.0242 0.4554 -0.69040 2017 5 15 57888 0.0258 0.4567 -0.69146 2017 5 16 57889 0.0274 0.4579 -0.69252 2017 5 17 57890 0.0291 0.4592 -0.69358 2017 5 18 57891 0.0308 0.4604 -0.69477 2017 5 19 57892 0.0325 0.4616 -0.69612 2017 5 20 57893 0.0342 0.4628 -0.69767 2017 5 21 57894 0.0359 0.4639 -0.69933 2017 5 22 57895 0.0376 0.4650 -0.70117 2017 5 23 57896 0.0394 0.4661 -0.70310 2017 5 24 57897 0.0412 0.4672 -0.70512 2017 5 25 57898 0.0430 0.4682 -0.70711 2017 5 26 57899 0.0448 0.4692 -0.70898 2017 5 27 57900 0.0466 0.4702 -0.71068 2017 5 28 57901 0.0485 0.4711 -0.71218 2017 5 29 57902 0.0503 0.4720 -0.71369 2017 5 30 57903 0.0522 0.4729 -0.71508 2017 5 31 57904 0.0541 0.4738 -0.71657 2017 6 1 57905 0.0560 0.4746 -0.71801 2017 6 2 57906 0.0579 0.4754 -0.71944 2017 6 3 57907 0.0598 0.4762 -0.72081 2017 6 4 57908 0.0617 0.4770 -0.72214 2017 6 5 57909 0.0636 0.4777 -0.72341 2017 6 6 57910 0.0656 0.4784 -0.72459 2017 6 7 57911 0.0676 0.4790 -0.72570 2017 6 8 57912 0.0695 0.4796 -0.72670 2017 6 9 57913 0.0715 0.4802 -0.72755 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) 57527 -93.12 0.30 -13.25 0.03 57528 -93.38 0.30 -13.24 0.03 57529 -93.53 0.30 -13.34 0.03 57530 -93.59 0.30 -13.44 0.07 57531 -93.61 0.30 -13.48 0.07 57532 -93.63 0.30 -13.52 0.07 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 57527 0.054 0.119 0.051 0.030 57528 0.056 0.119 0.032 0.030 57529 0.067 0.119 0.008 0.030 57530 0.083 0.119 0.008 0.070 57531 0.108 0.119 0.037 0.070 57532 0.140 0.119 0.063 0.070 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).