********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 May 2016 Vol. XXIX No. 018 ______________________________________________________________________ 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 = -0.1 seconds beginning 24 Mar 2016 at 0000 UTC = -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 4 29 57507 0.03073 .00009 0.46983 .00009 -0.131725 0.000009 16 4 30 57508 0.03233 .00009 0.47097 .00009 -0.133192 0.000011 16 5 1 57509 0.03450 .00009 0.47232 .00009 -0.134844 0.000014 16 5 2 57510 0.03667 .00009 0.47395 .00009 -0.136576 0.000016 16 5 3 57511 0.03867 .00009 0.47550 .00009 -0.138546 0.000016 16 5 4 57512 0.04061 .00009 0.47682 .00009 -0.140678 0.000017 16 5 5 57513 0.04234 .00009 0.47805 .00009 -0.142905 0.000017 IERS Final Values MJD x y UT1-UTC " " s 16 3 2 57449 -0.0247 0.3559 -0.02200 16 3 3 57450 -0.0240 0.3578 -0.02369 16 3 4 57451 -0.0236 0.3602 -0.02544 16 3 5 57452 -0.0238 0.3626 -0.02724 16 3 6 57453 -0.0237 0.3650 -0.02921 16 3 7 57454 -0.0240 0.3676 -0.03134 16 3 8 57455 -0.0245 0.3700 -0.03357 16 3 9 57456 -0.0248 0.3725 -0.03592 16 3 10 57457 -0.0251 0.3749 -0.03836 16 3 11 57458 -0.0251 0.3771 -0.04086 16 3 12 57459 -0.0252 0.3789 -0.04328 16 3 13 57460 -0.0253 0.3808 -0.04558 16 3 14 57461 -0.0248 0.3826 -0.04775 16 3 15 57462 -0.0240 0.3848 -0.04977 16 3 16 57463 -0.0228 0.3871 -0.05164 16 3 17 57464 -0.0208 0.3895 -0.05348 16 3 18 57465 -0.0183 0.3920 -0.05529 16 3 19 57466 -0.0161 0.3945 -0.05715 16 3 20 57467 -0.0145 0.3970 -0.05909 16 3 21 57468 -0.0137 0.3995 -0.06111 16 3 22 57469 -0.0135 0.4021 -0.06318 16 3 23 57470 -0.0136 0.4044 -0.06529 16 3 24 57471 -0.0137 0.4064 -0.06734 16 3 25 57472 -0.0133 0.4084 -0.06934 16 3 26 57473 -0.0126 0.4105 -0.07138 16 3 27 57474 -0.0118 0.4127 -0.07339 16 3 28 57475 -0.0111 0.4145 -0.07534 16 3 29 57476 -0.0102 0.4164 -0.07718 16 3 30 57477 -0.0093 0.4180 -0.07895 16 3 31 57478 -0.0087 0.4198 -0.08071 16 4 1 57479 -0.0084 0.4212 -0.08246 _______________________________________________________________________ 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 = 0.1108 - 0.0978 cos A + 0.0965 sin A + 0.0312 cos C + 0.0237 sin C y = 0.3639 + 0.0887 cos A + 0.0917 sin A + 0.0237 cos C - 0.0312 sin C UT1-UTC = -0.1148 - 0.00145 (MJD - 57521) - (UT2-UT1) where A = 2*pi*(MJD-57513)/365.25 and C = 2*pi*(MJD-57513)/435. TAI-UTC(MJD 57514) = 36.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-57513)**0.80 S t = 0.00025 (MJD-57513)**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 5 6 57514 0.0440 0.4791 -0.14505 2016 5 7 57515 0.0456 0.4800 -0.14703 2016 5 8 57516 0.0474 0.4809 -0.14880 2016 5 9 57517 0.0493 0.4817 -0.15036 2016 5 10 57518 0.0512 0.4825 -0.15174 2016 5 11 57519 0.0533 0.4834 -0.15299 2016 5 12 57520 0.0555 0.4842 -0.15419 2016 5 13 57521 0.0576 0.4850 -0.15538 2016 5 14 57522 0.0597 0.4858 -0.15661 2016 5 15 57523 0.0619 0.4866 -0.15788 2016 5 16 57524 0.0640 0.4873 -0.15922 2016 5 17 57525 0.0661 0.4879 -0.16060 2016 5 18 57526 0.0683 0.4885 -0.16198 2016 5 19 57527 0.0705 0.4890 -0.16328 2016 5 20 57528 0.0727 0.4895 -0.16450 2016 5 21 57529 0.0749 0.4900 -0.16562 2016 5 22 57530 0.0772 0.4905 -0.16662 2016 5 23 57531 0.0794 0.4910 -0.16753 2016 5 24 57532 0.0817 0.4914 -0.16838 2016 5 25 57533 0.0839 0.4918 -0.16920 2016 5 26 57534 0.0861 0.4921 -0.17004 2016 5 27 57535 0.0884 0.4924 -0.17094 2016 5 28 57536 0.0906 0.4927 -0.17194 2016 5 29 57537 0.0929 0.4929 -0.17308 2016 5 30 57538 0.0951 0.4931 -0.17437 2016 5 31 57539 0.0974 0.4933 -0.17577 2016 6 1 57540 0.0997 0.4934 -0.17723 2016 6 2 57541 0.1019 0.4935 -0.17868 2016 6 3 57542 0.1042 0.4936 -0.18003 2016 6 4 57543 0.1065 0.4936 -0.18126 2016 6 5 57544 0.1087 0.4936 -0.18233 2016 6 6 57545 0.1110 0.4935 -0.18328 2016 6 7 57546 0.1132 0.4935 -0.18416 2016 6 8 57547 0.1155 0.4933 -0.18500 2016 6 9 57548 0.1178 0.4932 -0.18587 2016 6 10 57549 0.1200 0.4930 -0.18677 2016 6 11 57550 0.1223 0.4928 -0.18770 2016 6 12 57551 0.1246 0.4925 -0.18865 2016 6 13 57552 0.1268 0.4922 -0.18960 2016 6 14 57553 0.1290 0.4919 -0.19053 2016 6 15 57554 0.1313 0.4916 -0.19140 2016 6 16 57555 0.1335 0.4912 -0.19221 2016 6 17 57556 0.1357 0.4907 -0.19294 2016 6 18 57557 0.1379 0.4903 -0.19359 2016 6 19 57558 0.1402 0.4898 -0.19416 2016 6 20 57559 0.1423 0.4893 -0.19467 2016 6 21 57560 0.1445 0.4887 -0.19515 2016 6 22 57561 0.1467 0.4881 -0.19564 2016 6 23 57562 0.1489 0.4875 -0.19618 2016 6 24 57563 0.1510 0.4868 -0.19683 2016 6 25 57564 0.1532 0.4861 -0.19759 2016 6 26 57565 0.1553 0.4854 -0.19848 2016 6 27 57566 0.1574 0.4847 -0.19948 2016 6 28 57567 0.1595 0.4839 -0.20054 2016 6 29 57568 0.1616 0.4830 -0.20160 2016 6 30 57569 0.1637 0.4822 -0.20261 2016 7 1 57570 0.1658 0.4813 -0.20350 2016 7 2 57571 0.1678 0.4804 -0.20425 2016 7 3 57572 0.1698 0.4794 -0.20486 2016 7 4 57573 0.1718 0.4785 -0.20537 2016 7 5 57574 0.1738 0.4775 -0.20585 2016 7 6 57575 0.1758 0.4764 -0.20635 2016 7 7 57576 0.1778 0.4754 -0.20689 2016 7 8 57577 0.1797 0.4743 -0.20749 2016 7 9 57578 0.1816 0.4731 -0.20813 2016 7 10 57579 0.1835 0.4720 -0.20880 2016 7 11 57580 0.1854 0.4708 -0.20946 2016 7 12 57581 0.1872 0.4696 -0.21009 2016 7 13 57582 0.1891 0.4683 -0.21069 2016 7 14 57583 0.1909 0.4670 -0.21122 2016 7 15 57584 0.1927 0.4657 -0.21169 2016 7 16 57585 0.1944 0.4644 -0.21210 2016 7 17 57586 0.1962 0.4631 -0.21247 2016 7 18 57587 0.1979 0.4617 -0.21283 2016 7 19 57588 0.1996 0.4603 -0.21322 2016 7 20 57589 0.2012 0.4588 -0.21368 2016 7 21 57590 0.2029 0.4574 -0.21426 2016 7 22 57591 0.2045 0.4559 -0.21498 2016 7 23 57592 0.2061 0.4544 -0.21585 2016 7 24 57593 0.2076 0.4529 -0.21686 2016 7 25 57594 0.2092 0.4513 -0.21794 2016 7 26 57595 0.2107 0.4497 -0.21904 2016 7 27 57596 0.2121 0.4481 -0.22009 2016 7 28 57597 0.2136 0.4465 -0.22103 2016 7 29 57598 0.2150 0.4448 -0.22186 2016 7 30 57599 0.2164 0.4432 -0.22257 2016 7 31 57600 0.2178 0.4415 -0.22319 2016 8 1 57601 0.2191 0.4398 -0.22379 2016 8 2 57602 0.2204 0.4380 -0.22440 2016 8 3 57603 0.2216 0.4363 -0.22507 2016 8 4 57604 0.2229 0.4345 -0.22580 2016 8 5 57605 0.2241 0.4327 -0.22660 2016 8 6 57606 0.2252 0.4309 -0.22743 2016 8 7 57607 0.2264 0.4291 -0.22826 2016 8 8 57608 0.2275 0.4272 -0.22908 2016 8 9 57609 0.2286 0.4254 -0.22984 2016 8 10 57610 0.2296 0.4235 -0.23055 2016 8 11 57611 0.2306 0.4216 -0.23118 2016 8 12 57612 0.2316 0.4197 -0.23175 2016 8 13 57613 0.2325 0.4178 -0.23226 2016 8 14 57614 0.2334 0.4158 -0.23275 2016 8 15 57615 0.2343 0.4139 -0.23326 2016 8 16 57616 0.2351 0.4119 -0.23383 2016 8 17 57617 0.2359 0.4099 -0.23451 2016 8 18 57618 0.2367 0.4079 -0.23534 2016 8 19 57619 0.2374 0.4059 -0.23635 2016 8 20 57620 0.2381 0.4039 -0.23754 2016 8 21 57621 0.2387 0.4019 -0.23884 2016 8 22 57622 0.2394 0.3998 -0.24018 2016 8 23 57623 0.2399 0.3978 -0.24149 2016 8 24 57624 0.2405 0.3957 -0.24270 2016 8 25 57625 0.2410 0.3937 -0.24378 2016 8 26 57626 0.2415 0.3916 -0.24475 2016 8 27 57627 0.2419 0.3895 -0.24562 2016 8 28 57628 0.2423 0.3874 -0.24645 2016 8 29 57629 0.2427 0.3854 -0.24729 2016 8 30 57630 0.2430 0.3833 -0.24820 2016 8 31 57631 0.2433 0.3812 -0.24918 2016 9 1 57632 0.2435 0.3790 -0.25025 2016 9 2 57633 0.2437 0.3769 -0.25138 2016 9 3 57634 0.2439 0.3748 -0.25256 2016 9 4 57635 0.2440 0.3727 -0.25374 2016 9 5 57636 0.2441 0.3706 -0.25490 2016 9 6 57637 0.2442 0.3685 -0.25601 2016 9 7 57638 0.2442 0.3663 -0.25707 2016 9 8 57639 0.2442 0.3642 -0.25806 2016 9 9 57640 0.2441 0.3621 -0.25900 2016 9 10 57641 0.2440 0.3600 -0.25992 2016 9 11 57642 0.2439 0.3579 -0.26085 2016 9 12 57643 0.2437 0.3557 -0.26182 2016 9 13 57644 0.2435 0.3536 -0.26291 2016 9 14 57645 0.2433 0.3515 -0.26414 2016 9 15 57646 0.2430 0.3494 -0.26556 2016 9 16 57647 0.2427 0.3473 -0.26719 2016 9 17 57648 0.2423 0.3452 -0.26899 2016 9 18 57649 0.2419 0.3431 -0.27088 2016 9 19 57650 0.2415 0.3410 -0.27279 2016 9 20 57651 0.2410 0.3389 -0.27462 2016 9 21 57652 0.2405 0.3368 -0.27631 2016 9 22 57653 0.2400 0.3348 -0.27785 2016 9 23 57654 0.2394 0.3327 -0.27927 2016 9 24 57655 0.2388 0.3307 -0.28063 2016 9 25 57656 0.2381 0.3286 -0.28197 2016 9 26 57657 0.2375 0.3266 -0.28334 2016 9 27 57658 0.2367 0.3246 -0.28479 2016 9 28 57659 0.2360 0.3225 -0.28631 2016 9 29 57660 0.2352 0.3205 -0.28790 2016 9 30 57661 0.2343 0.3186 -0.28955 2016 10 1 57662 0.2335 0.3166 -0.29120 2016 10 2 57663 0.2326 0.3146 -0.29285 2016 10 3 57664 0.2316 0.3127 -0.29444 2016 10 4 57665 0.2307 0.3107 -0.29598 2016 10 5 57666 0.2297 0.3088 -0.29745 2016 10 6 57667 0.2286 0.3069 -0.29884 2016 10 7 57668 0.2276 0.3050 -0.30019 2016 10 8 57669 0.2265 0.3032 -0.30153 2016 10 9 57670 0.2253 0.3013 -0.30289 2016 10 10 57671 0.2241 0.2995 -0.30432 2016 10 11 57672 0.2229 0.2976 -0.30587 2016 10 12 57673 0.2217 0.2958 -0.30759 2016 10 13 57674 0.2204 0.2941 -0.30950 2016 10 14 57675 0.2191 0.2923 -0.31161 2016 10 15 57676 0.2178 0.2905 -0.31386 2016 10 16 57677 0.2164 0.2888 -0.31618 2016 10 17 57678 0.2150 0.2871 -0.31847 2016 10 18 57679 0.2136 0.2854 -0.32064 2016 10 19 57680 0.2122 0.2838 -0.32265 2016 10 20 57681 0.2107 0.2821 -0.32450 2016 10 21 57682 0.2092 0.2805 -0.32624 2016 10 22 57683 0.2076 0.2789 -0.32793 2016 10 23 57684 0.2061 0.2774 -0.32962 2016 10 24 57685 0.2045 0.2758 -0.33134 2016 10 25 57686 0.2029 0.2743 -0.33313 2016 10 26 57687 0.2012 0.2728 -0.33498 2016 10 27 57688 0.1996 0.2713 -0.33686 2016 10 28 57689 0.1979 0.2699 -0.33876 2016 10 29 57690 0.1961 0.2684 -0.34064 2016 10 30 57691 0.1944 0.2671 -0.34248 2016 10 31 57692 0.1926 0.2657 -0.34426 2016 11 1 57693 0.1908 0.2643 -0.34597 2016 11 2 57694 0.1890 0.2630 -0.34761 2016 11 3 57695 0.1872 0.2617 -0.34919 2016 11 4 57696 0.1853 0.2605 -0.35074 2016 11 5 57697 0.1834 0.2593 -0.35230 2016 11 6 57698 0.1815 0.2581 -0.35391 2016 11 7 57699 0.1796 0.2569 -0.35564 2016 11 8 57700 0.1776 0.2557 -0.35751 2016 11 9 57701 0.1756 0.2546 -0.35955 2016 11 10 57702 0.1737 0.2536 -0.36179 2016 11 11 57703 0.1717 0.2525 -0.36417 2016 11 12 57704 0.1696 0.2515 -0.36664 2016 11 13 57705 0.1676 0.2505 -0.36909 2016 11 14 57706 0.1655 0.2495 -0.37141 2016 11 15 57707 0.1635 0.2486 -0.37352 2016 11 16 57708 0.1614 0.2477 -0.37539 2016 11 17 57709 0.1593 0.2468 -0.37707 2016 11 18 57710 0.1571 0.2460 -0.37861 2016 11 19 57711 0.1550 0.2452 -0.38009 2016 11 20 57712 0.1529 0.2444 -0.38155 2016 11 21 57713 0.1507 0.2437 -0.38304 2016 11 22 57714 0.1485 0.2430 -0.38458 2016 11 23 57715 0.1463 0.2423 -0.38614 2016 11 24 57716 0.1441 0.2417 -0.38772 2016 11 25 57717 0.1419 0.2411 -0.38928 2016 11 26 57718 0.1397 0.2405 -0.39081 2016 11 27 57719 0.1375 0.2400 -0.39228 2016 11 28 57720 0.1353 0.2395 -0.39368 2016 11 29 57721 0.1330 0.2390 -0.39501 2016 11 30 57722 0.1308 0.2386 -0.39628 2016 12 1 57723 0.1285 0.2382 -0.39749 2016 12 2 57724 0.1262 0.2379 -0.39868 2016 12 3 57725 0.1240 0.2375 -0.39987 2016 12 4 57726 0.1217 0.2372 -0.40112 2016 12 5 57727 0.1194 0.2370 -0.40247 2016 12 6 57728 0.1171 0.2368 -0.40399 2016 12 7 57729 0.1149 0.2366 -0.40567 2016 12 8 57730 0.1126 0.2364 -0.40749 2016 12 9 57731 0.1103 0.2363 -0.40938 2016 12 10 57732 0.1080 0.2362 -0.41129 2016 12 11 57733 0.1057 0.2362 -0.41320 2016 12 12 57734 0.1034 0.2362 -0.41507 2016 12 13 57735 0.1011 0.2362 -0.41679 2016 12 14 57736 0.0988 0.2362 -0.41834 2016 12 15 57737 0.0966 0.2363 -0.41976 2016 12 16 57738 0.0943 0.2365 -0.42115 2016 12 17 57739 0.0920 0.2366 -0.42249 2016 12 18 57740 0.0897 0.2368 -0.42390 2016 12 19 57741 0.0874 0.2371 -0.42535 2016 12 20 57742 0.0852 0.2373 -0.42681 2016 12 21 57743 0.0829 0.2376 -0.42820 2016 12 22 57744 0.0807 0.2380 -0.42955 2016 12 23 57745 0.0784 0.2383 -0.43085 2016 12 24 57746 0.0762 0.2387 -0.43214 2016 12 25 57747 0.0739 0.2392 -0.43341 2016 12 26 57748 0.0717 0.2396 -0.43462 2016 12 27 57749 0.0695 0.2402 -0.43577 2016 12 28 57750 0.0673 0.2407 -0.43690 2016 12 29 57751 0.0651 0.2413 -0.43800 2016 12 30 57752 0.0629 0.2419 -0.43907 2016 12 31 57753 0.0608 0.2425 -0.44016 2017 1 1 57754 0.0586 0.2432 -0.44138 2017 1 2 57755 0.0565 0.2439 -0.44278 2017 1 3 57756 0.0543 0.2446 -0.44431 2017 1 4 57757 0.0522 0.2454 -0.44600 2017 1 5 57758 0.0501 0.2462 -0.44774 2017 1 6 57759 0.0480 0.2471 -0.44953 2017 1 7 57760 0.0459 0.2479 -0.45128 2017 1 8 57761 0.0439 0.2488 -0.45298 2017 1 9 57762 0.0419 0.2498 -0.45464 2017 1 10 57763 0.0398 0.2507 -0.45618 2017 1 11 57764 0.0378 0.2517 -0.45764 2017 1 12 57765 0.0359 0.2528 -0.45910 2017 1 13 57766 0.0339 0.2538 -0.46051 2017 1 14 57767 0.0319 0.2549 -0.46192 2017 1 15 57768 0.0300 0.2560 -0.46349 2017 1 16 57769 0.0281 0.2572 -0.46517 2017 1 17 57770 0.0262 0.2583 -0.46690 2017 1 18 57771 0.0244 0.2595 -0.46868 2017 1 19 57772 0.0225 0.2608 -0.47043 2017 1 20 57773 0.0207 0.2620 -0.47213 2017 1 21 57774 0.0189 0.2633 -0.47375 2017 1 22 57775 0.0172 0.2646 -0.47533 2017 1 23 57776 0.0154 0.2660 -0.47680 2017 1 24 57777 0.0137 0.2674 -0.47816 2017 1 25 57778 0.0120 0.2688 -0.47946 2017 1 26 57779 0.0103 0.2702 -0.48066 2017 1 27 57780 0.0087 0.2716 -0.48190 2017 1 28 57781 0.0071 0.2731 -0.48324 2017 1 29 57782 0.0055 0.2746 -0.48473 2017 1 30 57783 0.0039 0.2761 -0.48641 2017 1 31 57784 0.0024 0.2777 -0.48822 2017 2 1 57785 0.0009 0.2792 -0.49011 2017 2 2 57786 -0.0006 0.2808 -0.49207 2017 2 3 57787 -0.0020 0.2824 -0.49406 2017 2 4 57788 -0.0034 0.2841 -0.49597 2017 2 5 57789 -0.0048 0.2857 -0.49774 2017 2 6 57790 -0.0062 0.2874 -0.49937 2017 2 7 57791 -0.0075 0.2891 -0.50096 2017 2 8 57792 -0.0088 0.2908 -0.50254 2017 2 9 57793 -0.0101 0.2926 -0.50416 2017 2 10 57794 -0.0113 0.2943 -0.50586 2017 2 11 57795 -0.0125 0.2961 -0.50769 2017 2 12 57796 -0.0137 0.2979 -0.50955 2017 2 13 57797 -0.0148 0.2997 -0.51150 2017 2 14 57798 -0.0159 0.3016 -0.51345 2017 2 15 57799 -0.0170 0.3034 -0.51538 2017 2 16 57800 -0.0180 0.3053 -0.51730 2017 2 17 57801 -0.0190 0.3072 -0.51913 2017 2 18 57802 -0.0200 0.3090 -0.52084 2017 2 19 57803 -0.0209 0.3110 -0.52253 2017 2 20 57804 -0.0218 0.3129 -0.52407 2017 2 21 57805 -0.0227 0.3148 -0.52555 2017 2 22 57806 -0.0235 0.3168 -0.52702 2017 2 23 57807 -0.0243 0.3187 -0.52849 2017 2 24 57808 -0.0251 0.3207 -0.53004 2017 2 25 57809 -0.0258 0.3227 -0.53169 2017 2 26 57810 -0.0265 0.3247 -0.53347 2017 2 27 57811 -0.0271 0.3267 -0.53538 2017 2 28 57812 -0.0277 0.3287 -0.53749 2017 3 1 57813 -0.0283 0.3308 -0.53969 2017 3 2 57814 -0.0289 0.3328 -0.54186 2017 3 3 57815 -0.0294 0.3349 -0.54403 2017 3 4 57816 -0.0298 0.3369 -0.54600 2017 3 5 57817 -0.0303 0.3390 -0.54790 2017 3 6 57818 -0.0307 0.3410 -0.54970 2017 3 7 57819 -0.0310 0.3431 -0.55144 2017 3 8 57820 -0.0313 0.3452 -0.55312 2017 3 9 57821 -0.0316 0.3473 -0.55490 2017 3 10 57822 -0.0319 0.3494 -0.55679 2017 3 11 57823 -0.0321 0.3515 -0.55883 2017 3 12 57824 -0.0323 0.3536 -0.56092 2017 3 13 57825 -0.0324 0.3557 -0.56310 2017 3 14 57826 -0.0325 0.3578 -0.56533 2017 3 15 57827 -0.0326 0.3599 -0.56761 2017 3 16 57828 -0.0326 0.3620 -0.56990 2017 3 17 57829 -0.0326 0.3641 -0.57214 2017 3 18 57830 -0.0325 0.3662 -0.57427 2017 3 19 57831 -0.0324 0.3683 -0.57625 2017 3 20 57832 -0.0323 0.3704 -0.57821 2017 3 21 57833 -0.0321 0.3725 -0.58004 2017 3 22 57834 -0.0319 0.3746 -0.58193 2017 3 23 57835 -0.0317 0.3767 -0.58380 2017 3 24 57836 -0.0314 0.3788 -0.58572 2017 3 25 57837 -0.0311 0.3808 -0.58774 2017 3 26 57838 -0.0308 0.3829 -0.58994 2017 3 27 57839 -0.0304 0.3850 -0.59231 2017 3 28 57840 -0.0300 0.3871 -0.59484 2017 3 29 57841 -0.0295 0.3891 -0.59746 2017 3 30 57842 -0.0290 0.3912 -0.60006 2017 3 31 57843 -0.0285 0.3932 -0.60253 2017 4 1 57844 -0.0279 0.3953 -0.60477 2017 4 2 57845 -0.0273 0.3973 -0.60682 2017 4 3 57846 -0.0267 0.3993 -0.60871 2017 4 4 57847 -0.0260 0.4013 -0.61043 2017 4 5 57848 -0.0253 0.4033 -0.61216 2017 4 6 57849 -0.0246 0.4053 -0.61390 2017 4 7 57850 -0.0238 0.4073 -0.61561 2017 4 8 57851 -0.0230 0.4093 -0.61731 2017 4 9 57852 -0.0221 0.4112 -0.61896 2017 4 10 57853 -0.0212 0.4132 -0.62057 2017 4 11 57854 -0.0203 0.4151 -0.62224 2017 4 12 57855 -0.0194 0.4170 -0.62373 2017 4 13 57856 -0.0184 0.4189 -0.62517 2017 4 14 57857 -0.0174 0.4208 -0.62655 2017 4 15 57858 -0.0163 0.4227 -0.62784 2017 4 16 57859 -0.0153 0.4245 -0.62905 2017 4 17 57860 -0.0142 0.4264 -0.63022 2017 4 18 57861 -0.0130 0.4282 -0.63149 2017 4 19 57862 -0.0118 0.4300 -0.63282 2017 4 20 57863 -0.0106 0.4318 -0.63417 2017 4 21 57864 -0.0094 0.4335 -0.63563 2017 4 22 57865 -0.0081 0.4353 -0.63721 2017 4 23 57866 -0.0068 0.4370 -0.63897 2017 4 24 57867 -0.0055 0.4387 -0.64083 2017 4 25 57868 -0.0042 0.4404 -0.64279 2017 4 26 57869 -0.0028 0.4421 -0.64477 2017 4 27 57870 -0.0014 0.4437 -0.64670 2017 4 28 57871 0.0001 0.4453 -0.64849 2017 4 29 57872 0.0015 0.4469 -0.65016 2017 4 30 57873 0.0030 0.4485 -0.65164 2017 5 1 57874 0.0046 0.4500 -0.65309 2017 5 2 57875 0.0061 0.4516 -0.65448 2017 5 3 57876 0.0077 0.4531 -0.65594 2017 5 4 57877 0.0093 0.4546 -0.65748 2017 5 5 57878 0.0109 0.4560 -0.65917 These predictions are based on all announced leap seconds. IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 57449 -94.5 -11.7 57450 -94.2 -11.5 57451 -93.7 -11.2 57452 -93.4 -11.1 57453 -93.4 -11.4 57454 -93.6 -11.8 57455 -93.4 -11.9 57456 -93.0 -11.8 57457 -92.7 -11.5 57458 -92.7 -11.5 57459 -93.1 -11.6 57460 -93.5 -11.8 57461 -93.7 -11.9 57462 -93.6 -12.1 57463 -93.4 -12.3 57464 -93.3 -12.3 57465 -93.2 -12.3 57466 -93.2 -12.4 57467 -93.1 -12.4 57468 -93.0 -12.5 57469 -92.9 -12.5 57470 -93.0 -12.2 57471 -93.0 -12.2 57472 -93.1 -12.3 57473 -93.2 -12.5 57474 -93.3 -12.6 57475 -93.4 -12.8 57476 -93.6 -13.0 57477 -93.7 -13.1 57478 -93.4 -13.0 57479 -92.7 -12.8 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 57449 -0.10 -0.15 57450 -0.06 -0.15 57451 -0.03 -0.09 57452 -0.02 -0.06 57453 0.01 -0.13 57454 0.00 -0.18 57455 0.04 -0.14 57456 0.03 -0.19 57457 0.01 -0.11 57458 0.02 -0.15 57459 0.00 -0.10 57460 0.01 -0.11 57461 0.00 -0.03 57462 -0.01 -0.05 57463 -0.03 -0.08 57464 -0.05 0.02 57465 -0.04 0.05 57466 -0.08 -0.04 57467 -0.10 0.00 57468 -0.14 -0.08 57469 -0.15 -0.12 57470 -0.20 0.11 57471 -0.19 0.09 57472 -0.19 0.08 57473 -0.17 0.02 57474 -0.16 0.05 57475 -0.15 -0.03 57476 -0.15 -0.10 57477 -0.15 -0.10 57478 -0.12 -0.06 57479 -0.09 -0.08 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).