********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 May 2013 Vol. XXVI No. 019 ______________________________________________________________________ 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 11 April 2013 at 0000 UTC Beginning 1 July 2012: TAI-UTC = 35.000 000 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 * *********************************************************************** ________________________________________________________________________ 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 13 5 3 56415 0.07227 .00010 0.39755 .00009 0.109311 0.000015 13 5 4 56416 0.07394 .00010 0.39815 .00009 0.107651 0.000011 13 5 5 56417 0.07545 .00010 0.39870 .00009 0.105952 0.000010 13 5 6 56418 0.07672 .00010 0.39917 .00009 0.104286 0.000009 13 5 7 56419 0.07780 .00010 0.39948 .00009 0.102673 0.000009 13 5 8 56420 0.07892 .00010 0.39974 .00009 0.101137 0.000008 13 5 9 56421 0.08022 .00010 0.40018 .00009 0.099738 0.000008 _______________________________________________________________________ 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 = 0.0947 - 0.0667 cos A + 0.1283 sin A + 0.0560 cos C - 0.0546 sin C y = 0.3405 + 0.1110 cos A + 0.0597 sin A - 0.0546 cos C - 0.0560 sin C UT1-UTC = 0.1207 - 0.00098 (MJD - 56429) - (UT2-UT1) where A = 2*pi*(MJD-56421)/365.25 and C = 2*pi*(MJD-56421)/435. TAI-UTC(MJD 56422) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56421)**0.80 S t = 0.00025 (MJD-56421)**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) 2013 5 10 56422 0.0815 0.4006 0.09846 2013 5 11 56423 0.0829 0.4011 0.09733 2013 5 12 56424 0.0843 0.4015 0.09633 2013 5 13 56425 0.0857 0.4018 0.09540 2013 5 14 56426 0.0872 0.4022 0.09449 2013 5 15 56427 0.0886 0.4024 0.09354 2013 5 16 56428 0.0901 0.4026 0.09252 2013 5 17 56429 0.0917 0.4029 0.09140 2013 5 18 56430 0.0932 0.4031 0.09017 2013 5 19 56431 0.0947 0.4032 0.08882 2013 5 20 56432 0.0963 0.4033 0.08738 2013 5 21 56433 0.0978 0.4034 0.08586 2013 5 22 56434 0.0994 0.4035 0.08433 2013 5 23 56435 0.1009 0.4036 0.08288 2013 5 24 56436 0.1025 0.4036 0.08158 2013 5 25 56437 0.1041 0.4037 0.08043 2013 5 26 56438 0.1056 0.4037 0.07941 2013 5 27 56439 0.1072 0.4036 0.07845 2013 5 28 56440 0.1088 0.4036 0.07748 2013 5 29 56441 0.1104 0.4035 0.07644 2013 5 30 56442 0.1120 0.4033 0.07533 2013 5 31 56443 0.1136 0.4032 0.07418 2013 6 1 56444 0.1152 0.4030 0.07304 2013 6 2 56445 0.1168 0.4028 0.07195 2013 6 3 56446 0.1184 0.4026 0.07097 2013 6 4 56447 0.1200 0.4023 0.07012 2013 6 5 56448 0.1216 0.4020 0.06943 2013 6 6 56449 0.1232 0.4017 0.06890 2013 6 7 56450 0.1247 0.4014 0.06850 2013 6 8 56451 0.1263 0.4010 0.06821 2013 6 9 56452 0.1279 0.4006 0.06798 2013 6 10 56453 0.1295 0.4002 0.06777 2013 6 11 56454 0.1310 0.3998 0.06753 2013 6 12 56455 0.1326 0.3993 0.06724 2013 6 13 56456 0.1341 0.3988 0.06688 2013 6 14 56457 0.1357 0.3983 0.06641 2013 6 15 56458 0.1372 0.3978 0.06585 2013 6 16 56459 0.1387 0.3972 0.06520 2013 6 17 56460 0.1402 0.3966 0.06447 2013 6 18 56461 0.1417 0.3960 0.06373 2013 6 19 56462 0.1432 0.3954 0.06302 2013 6 20 56463 0.1447 0.3947 0.06239 2013 6 21 56464 0.1462 0.3940 0.06186 2013 6 22 56465 0.1476 0.3933 0.06143 2013 6 23 56466 0.1491 0.3925 0.06105 2013 6 24 56467 0.1505 0.3918 0.06065 2013 6 25 56468 0.1519 0.3910 0.06016 2013 6 26 56469 0.1533 0.3902 0.05957 2013 6 27 56470 0.1547 0.3893 0.05888 2013 6 28 56471 0.1561 0.3885 0.05815 2013 6 29 56472 0.1575 0.3876 0.05747 2013 6 30 56473 0.1588 0.3867 0.05688 2013 7 1 56474 0.1601 0.3858 0.05644 2013 7 2 56475 0.1614 0.3848 0.05617 2013 7 3 56476 0.1627 0.3839 0.05605 2013 7 4 56477 0.1640 0.3829 0.05609 2013 7 5 56478 0.1653 0.3819 0.05623 2013 7 6 56479 0.1665 0.3808 0.05645 2013 7 7 56480 0.1677 0.3798 0.05671 2013 7 8 56481 0.1689 0.3787 0.05694 2013 7 9 56482 0.1701 0.3776 0.05712 2013 7 10 56483 0.1713 0.3765 0.05719 2013 7 11 56484 0.1724 0.3754 0.05715 2013 7 12 56485 0.1735 0.3742 0.05698 2013 7 13 56486 0.1746 0.3730 0.05669 2013 7 14 56487 0.1757 0.3718 0.05631 2013 7 15 56488 0.1767 0.3706 0.05590 2013 7 16 56489 0.1777 0.3694 0.05548 2013 7 17 56490 0.1787 0.3682 0.05513 2013 7 18 56491 0.1797 0.3669 0.05485 2013 7 19 56492 0.1807 0.3656 0.05465 2013 7 20 56493 0.1816 0.3643 0.05451 2013 7 21 56494 0.1825 0.3630 0.05436 2013 7 22 56495 0.1834 0.3617 0.05414 2013 7 23 56496 0.1842 0.3604 0.05378 2013 7 24 56497 0.1850 0.3590 0.05328 2013 7 25 56498 0.1858 0.3577 0.05268 2013 7 26 56499 0.1866 0.3563 0.05205 2013 7 27 56500 0.1874 0.3549 0.05148 2013 7 28 56501 0.1881 0.3535 0.05102 2013 7 29 56502 0.1888 0.3521 0.05072 2013 7 30 56503 0.1894 0.3506 0.05057 2013 7 31 56504 0.1901 0.3492 0.05057 2013 8 1 56505 0.1907 0.3477 0.05068 2013 8 2 56506 0.1913 0.3463 0.05088 2013 8 3 56507 0.1918 0.3448 0.05110 2013 8 4 56508 0.1923 0.3433 0.05131 2013 8 5 56509 0.1928 0.3418 0.05145 2013 8 6 56510 0.1933 0.3403 0.05150 2013 8 7 56511 0.1937 0.3388 0.05142 2013 8 8 56512 0.1941 0.3373 0.05122 2013 8 9 56513 0.1945 0.3357 0.05089 2013 8 10 56514 0.1948 0.3342 0.05046 2013 8 11 56515 0.1952 0.3326 0.04998 2013 8 12 56516 0.1954 0.3311 0.04948 2013 8 13 56517 0.1957 0.3295 0.04903 2013 8 14 56518 0.1959 0.3280 0.04864 2013 8 15 56519 0.1961 0.3264 0.04832 2013 8 16 56520 0.1963 0.3249 0.04805 2013 8 17 56521 0.1964 0.3233 0.04777 2013 8 18 56522 0.1965 0.3217 0.04743 2013 8 19 56523 0.1965 0.3201 0.04695 2013 8 20 56524 0.1966 0.3185 0.04632 2013 8 21 56525 0.1966 0.3170 0.04553 2013 8 22 56526 0.1965 0.3154 0.04465 2013 8 23 56527 0.1965 0.3138 0.04375 2013 8 24 56528 0.1964 0.3122 0.04292 2013 8 25 56529 0.1963 0.3106 0.04222 2013 8 26 56530 0.1961 0.3090 0.04163 2013 8 27 56531 0.1959 0.3074 0.04118 2013 8 28 56532 0.1957 0.3059 0.04085 2013 8 29 56533 0.1954 0.3043 0.04061 2013 8 30 56534 0.1951 0.3027 0.04041 2013 8 31 56535 0.1948 0.3011 0.04020 2013 9 1 56536 0.1945 0.2996 0.03994 2013 9 2 56537 0.1941 0.2980 0.03958 2013 9 3 56538 0.1937 0.2964 0.03910 2013 9 4 56539 0.1932 0.2949 0.03849 2013 9 5 56540 0.1928 0.2933 0.03774 2013 9 6 56541 0.1922 0.2918 0.03688 2013 9 7 56542 0.1917 0.2903 0.03594 2013 9 8 56543 0.1911 0.2887 0.03499 2013 9 9 56544 0.1905 0.2872 0.03407 2013 9 10 56545 0.1899 0.2857 0.03322 2013 9 11 56546 0.1892 0.2842 0.03246 2013 9 12 56547 0.1885 0.2827 0.03176 2013 9 13 56548 0.1878 0.2812 0.03108 2013 9 14 56549 0.1871 0.2797 0.03036 2013 9 15 56550 0.1863 0.2783 0.02953 2013 9 16 56551 0.1855 0.2768 0.02855 2013 9 17 56552 0.1846 0.2754 0.02741 2013 9 18 56553 0.1837 0.2739 0.02614 2013 9 19 56554 0.1828 0.2725 0.02480 2013 9 20 56555 0.1819 0.2711 0.02348 2013 9 21 56556 0.1809 0.2697 0.02224 2013 9 22 56557 0.1799 0.2684 0.02113 2013 9 23 56558 0.1789 0.2670 0.02017 2013 9 24 56559 0.1779 0.2656 0.01933 2013 9 25 56560 0.1768 0.2643 0.01860 2013 9 26 56561 0.1757 0.2630 0.01793 2013 9 27 56562 0.1745 0.2617 0.01727 2013 9 28 56563 0.1734 0.2604 0.01658 2013 9 29 56564 0.1722 0.2592 0.01581 2013 9 30 56565 0.1710 0.2579 0.01493 2013 10 1 56566 0.1697 0.2567 0.01391 2013 10 2 56567 0.1685 0.2555 0.01276 2013 10 3 56568 0.1672 0.2543 0.01149 2013 10 4 56569 0.1659 0.2531 0.01012 2013 10 5 56570 0.1645 0.2520 0.00871 2013 10 6 56571 0.1632 0.2508 0.00732 2013 10 7 56572 0.1618 0.2497 0.00599 2013 10 8 56573 0.1603 0.2486 0.00476 2013 10 9 56574 0.1589 0.2476 0.00361 2013 10 10 56575 0.1574 0.2465 0.00252 2013 10 11 56576 0.1560 0.2455 0.00142 2013 10 12 56577 0.1544 0.2445 0.00025 2013 10 13 56578 0.1529 0.2435 -0.00104 2013 10 14 56579 0.1514 0.2426 -0.00246 2013 10 15 56580 0.1498 0.2416 -0.00400 2013 10 16 56581 0.1482 0.2407 -0.00562 2013 10 17 56582 0.1466 0.2398 -0.00725 2013 10 18 56583 0.1450 0.2390 -0.00882 2013 10 19 56584 0.1433 0.2381 -0.01028 2013 10 20 56585 0.1416 0.2373 -0.01160 2013 10 21 56586 0.1400 0.2365 -0.01278 2013 10 22 56587 0.1383 0.2358 -0.01383 2013 10 23 56588 0.1365 0.2351 -0.01481 2013 10 24 56589 0.1348 0.2344 -0.01574 2013 10 25 56590 0.1330 0.2337 -0.01668 2013 10 26 56591 0.1313 0.2330 -0.01766 2013 10 27 56592 0.1295 0.2324 -0.01873 2013 10 28 56593 0.1277 0.2318 -0.01991 2013 10 29 56594 0.1259 0.2312 -0.02122 2013 10 30 56595 0.1240 0.2307 -0.02264 2013 10 31 56596 0.1222 0.2302 -0.02416 2013 11 1 56597 0.1203 0.2297 -0.02574 2013 11 2 56598 0.1185 0.2293 -0.02733 2013 11 3 56599 0.1166 0.2288 -0.02889 2013 11 4 56600 0.1147 0.2284 -0.03035 2013 11 5 56601 0.1128 0.2281 -0.03172 2013 11 6 56602 0.1109 0.2277 -0.03302 2013 11 7 56603 0.1090 0.2274 -0.03430 2013 11 8 56604 0.1070 0.2271 -0.03564 2013 11 9 56605 0.1051 0.2269 -0.03707 2013 11 10 56606 0.1032 0.2267 -0.03863 2013 11 11 56607 0.1012 0.2265 -0.04031 2013 11 12 56608 0.0993 0.2263 -0.04205 2013 11 13 56609 0.0973 0.2262 -0.04382 2013 11 14 56610 0.0953 0.2261 -0.04555 2013 11 15 56611 0.0934 0.2261 -0.04718 2013 11 16 56612 0.0914 0.2260 -0.04867 2013 11 17 56613 0.0894 0.2260 -0.05002 2013 11 18 56614 0.0874 0.2260 -0.05123 2013 11 19 56615 0.0854 0.2261 -0.05235 2013 11 20 56616 0.0834 0.2262 -0.05341 2013 11 21 56617 0.0815 0.2263 -0.05446 2013 11 22 56618 0.0795 0.2265 -0.05555 2013 11 23 56619 0.0775 0.2267 -0.05668 2013 11 24 56620 0.0755 0.2269 -0.05789 2013 11 25 56621 0.0735 0.2271 -0.05916 2013 11 26 56622 0.0715 0.2274 -0.06048 2013 11 27 56623 0.0695 0.2277 -0.06184 2013 11 28 56624 0.0676 0.2281 -0.06320 2013 11 29 56625 0.0656 0.2284 -0.06452 2013 11 30 56626 0.0636 0.2288 -0.06579 2013 12 1 56627 0.0616 0.2293 -0.06696 2013 12 2 56628 0.0597 0.2297 -0.06803 2013 12 3 56629 0.0577 0.2302 -0.06898 2013 12 4 56630 0.0558 0.2308 -0.06987 2013 12 5 56631 0.0538 0.2313 -0.07075 2013 12 6 56632 0.0519 0.2319 -0.07168 2013 12 7 56633 0.0500 0.2325 -0.07267 2013 12 8 56634 0.0481 0.2332 -0.07374 2013 12 9 56635 0.0462 0.2339 -0.07483 2013 12 10 56636 0.0443 0.2346 -0.07589 2013 12 11 56637 0.0424 0.2353 -0.07689 2013 12 12 56638 0.0405 0.2361 -0.07779 2013 12 13 56639 0.0387 0.2369 -0.07859 2013 12 14 56640 0.0368 0.2377 -0.07929 2013 12 15 56641 0.0350 0.2386 -0.07990 2013 12 16 56642 0.0332 0.2395 -0.08042 2013 12 17 56643 0.0314 0.2404 -0.08089 2013 12 18 56644 0.0296 0.2413 -0.08133 2013 12 19 56645 0.0278 0.2423 -0.08179 2013 12 20 56646 0.0261 0.2433 -0.08230 2013 12 21 56647 0.0243 0.2444 -0.08290 2013 12 22 56648 0.0226 0.2454 -0.08362 2013 12 23 56649 0.0209 0.2465 -0.08443 2013 12 24 56650 0.0192 0.2476 -0.08530 2013 12 25 56651 0.0175 0.2488 -0.08621 2013 12 26 56652 0.0159 0.2500 -0.08716 2013 12 27 56653 0.0143 0.2512 -0.08813 2013 12 28 56654 0.0127 0.2524 -0.08908 2013 12 29 56655 0.0111 0.2536 -0.08997 2013 12 30 56656 0.0095 0.2549 -0.09080 2013 12 31 56657 0.0080 0.2562 -0.09167 2014 1 1 56658 0.0065 0.2575 -0.09262 2014 1 2 56659 0.0050 0.2589 -0.09371 2014 1 3 56660 0.0035 0.2603 -0.09494 2014 1 4 56661 0.0021 0.2617 -0.09633 2014 1 5 56662 0.0006 0.2631 -0.09776 2014 1 6 56663 -0.0008 0.2645 -0.09914 2014 1 7 56664 -0.0021 0.2660 -0.10042 2014 1 8 56665 -0.0035 0.2675 -0.10157 2014 1 9 56666 -0.0048 0.2690 -0.10257 2014 1 10 56667 -0.0061 0.2706 -0.10340 2014 1 11 56668 -0.0074 0.2721 -0.10418 2014 1 12 56669 -0.0086 0.2737 -0.10491 2014 1 13 56670 -0.0098 0.2753 -0.10558 2014 1 14 56671 -0.0110 0.2769 -0.10625 2014 1 15 56672 -0.0121 0.2786 -0.10694 2014 1 16 56673 -0.0132 0.2802 -0.10773 2014 1 17 56674 -0.0143 0.2819 -0.10857 2014 1 18 56675 -0.0154 0.2836 -0.10943 2014 1 19 56676 -0.0164 0.2853 -0.11038 2014 1 20 56677 -0.0174 0.2870 -0.11142 2014 1 21 56678 -0.0184 0.2888 -0.11251 2014 1 22 56679 -0.0193 0.2906 -0.11360 2014 1 23 56680 -0.0202 0.2923 -0.11466 2014 1 24 56681 -0.0211 0.2941 -0.11574 2014 1 25 56682 -0.0219 0.2960 -0.11677 2014 1 26 56683 -0.0227 0.2978 -0.11771 2014 1 27 56684 -0.0235 0.2996 -0.11870 2014 1 28 56685 -0.0242 0.3015 -0.11973 2014 1 29 56686 -0.0249 0.3033 -0.12081 2014 1 30 56687 -0.0256 0.3052 -0.12200 2014 1 31 56688 -0.0262 0.3071 -0.12340 2014 2 1 56689 -0.0268 0.3090 -0.12495 2014 2 2 56690 -0.0274 0.3109 -0.12661 2014 2 3 56691 -0.0279 0.3129 -0.12826 2014 2 4 56692 -0.0284 0.3148 -0.12977 2014 2 5 56693 -0.0288 0.3167 -0.13107 2014 2 6 56694 -0.0293 0.3187 -0.13215 2014 2 7 56695 -0.0296 0.3206 -0.13308 2014 2 8 56696 -0.0300 0.3226 -0.13389 2014 2 9 56697 -0.0303 0.3246 -0.13464 2014 2 10 56698 -0.0306 0.3266 -0.13534 2014 2 11 56699 -0.0308 0.3285 -0.13604 2014 2 12 56700 -0.0310 0.3305 -0.13679 2014 2 13 56701 -0.0312 0.3325 -0.13761 2014 2 14 56702 -0.0313 0.3345 -0.13854 2014 2 15 56703 -0.0314 0.3365 -0.13963 2014 2 16 56704 -0.0314 0.3385 -0.14083 2014 2 17 56705 -0.0314 0.3406 -0.14213 2014 2 18 56706 -0.0314 0.3426 -0.14348 2014 2 19 56707 -0.0313 0.3446 -0.14485 2014 2 20 56708 -0.0312 0.3466 -0.14624 2014 2 21 56709 -0.0311 0.3486 -0.14762 2014 2 22 56710 -0.0309 0.3506 -0.14890 2014 2 23 56711 -0.0307 0.3526 -0.15013 2014 2 24 56712 -0.0304 0.3546 -0.15136 2014 2 25 56713 -0.0301 0.3566 -0.15271 2014 2 26 56714 -0.0298 0.3587 -0.15421 2014 2 27 56715 -0.0294 0.3607 -0.15588 2014 2 28 56716 -0.0290 0.3626 -0.15770 2014 3 1 56717 -0.0286 0.3646 -0.15972 2014 3 2 56718 -0.0281 0.3666 -0.16181 2014 3 3 56719 -0.0275 0.3686 -0.16389 2014 3 4 56720 -0.0270 0.3706 -0.16584 2014 3 5 56721 -0.0264 0.3726 -0.16761 2014 3 6 56722 -0.0257 0.3745 -0.16922 2014 3 7 56723 -0.0251 0.3765 -0.17068 2014 3 8 56724 -0.0244 0.3784 -0.17197 2014 3 9 56725 -0.0236 0.3803 -0.17320 2014 3 10 56726 -0.0228 0.3823 -0.17440 2014 3 11 56727 -0.0220 0.3842 -0.17563 2014 3 12 56728 -0.0211 0.3861 -0.17695 2014 3 13 56729 -0.0202 0.3880 -0.17840 2014 3 14 56730 -0.0193 0.3898 -0.17998 2014 3 15 56731 -0.0183 0.3917 -0.18168 2014 3 16 56732 -0.0173 0.3936 -0.18340 2014 3 17 56733 -0.0163 0.3954 -0.18519 2014 3 18 56734 -0.0152 0.3972 -0.18692 2014 3 19 56735 -0.0141 0.3990 -0.18855 2014 3 20 56736 -0.0129 0.4008 -0.19014 2014 3 21 56737 -0.0118 0.4026 -0.19161 2014 3 22 56738 -0.0105 0.4043 -0.19295 2014 3 23 56739 -0.0093 0.4061 -0.19433 2014 3 24 56740 -0.0080 0.4078 -0.19573 2014 3 25 56741 -0.0067 0.4095 -0.19718 2014 3 26 56742 -0.0053 0.4112 -0.19872 2014 3 27 56743 -0.0039 0.4129 -0.20034 2014 3 28 56744 -0.0025 0.4145 -0.20207 2014 3 29 56745 -0.0010 0.4161 -0.20384 2014 3 30 56746 0.0004 0.4177 -0.20563 2014 3 31 56747 0.0020 0.4193 -0.20737 2014 4 1 56748 0.0035 0.4209 -0.20898 2014 4 2 56749 0.0051 0.4224 -0.21041 2014 4 3 56750 0.0067 0.4239 -0.21167 2014 4 4 56751 0.0083 0.4254 -0.21279 2014 4 5 56752 0.0100 0.4269 -0.21381 2014 4 6 56753 0.0117 0.4283 -0.21482 2014 4 7 56754 0.0134 0.4297 -0.21584 2014 4 8 56755 0.0152 0.4311 -0.21690 2014 4 9 56756 0.0170 0.4325 -0.21803 2014 4 10 56757 0.0188 0.4338 -0.21929 2014 4 11 56758 0.0206 0.4352 -0.22064 2014 4 12 56759 0.0225 0.4364 -0.22210 2014 4 13 56760 0.0244 0.4377 -0.22370 2014 4 14 56761 0.0263 0.4389 -0.22539 2014 4 15 56762 0.0283 0.4401 -0.22712 2014 4 16 56763 0.0302 0.4413 -0.22883 2014 4 17 56764 0.0322 0.4424 -0.23049 2014 4 18 56765 0.0343 0.4436 -0.23202 2014 4 19 56766 0.0363 0.4446 -0.23347 2014 4 20 56767 0.0384 0.4457 -0.23491 2014 4 21 56768 0.0405 0.4467 -0.23640 2014 4 22 56769 0.0426 0.4477 -0.23796 2014 4 23 56770 0.0447 0.4487 -0.23963 2014 4 24 56771 0.0468 0.4496 -0.24148 2014 4 25 56772 0.0490 0.4505 -0.24347 2014 4 26 56773 0.0512 0.4513 -0.24546 2014 4 27 56774 0.0534 0.4522 -0.24737 2014 4 28 56775 0.0556 0.4530 -0.24915 2014 4 29 56776 0.0579 0.4537 -0.25082 2014 4 30 56777 0.0601 0.4545 -0.25239 2014 5 1 56778 0.0624 0.4551 -0.25379 2014 5 2 56779 0.0647 0.4558 -0.25504 2014 5 3 56780 0.0670 0.4564 -0.25614 2014 5 4 56781 0.0693 0.4570 -0.25713 2014 5 5 56782 0.0717 0.4576 -0.25807 2014 5 6 56783 0.0740 0.4581 -0.25904 2014 5 7 56784 0.0764 0.4586 -0.26007 2014 5 8 56785 0.0788 0.4590 -0.26121 2014 5 9 56786 0.0811 0.4594 -0.26244 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) 56406 -73.58 0.12 -13.37 0.04 56407 -73.68 0.12 -13.12 0.04 56408 -73.79 0.12 -13.06 0.04 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56406 0.239 0.048 -0.378 0.040 56407 0.232 0.048 -0.390 0.040 56408 0.226 0.048 -0.396 0.040 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).