********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 16 May 2013 Vol. XXVI No. 020 ______________________________________________________________________ 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 10 56422 0.08196 .00010 0.40050 .00009 0.098559 0.000009 13 5 11 56423 0.08419 .00010 0.40089 .00009 0.097464 0.000009 13 5 12 56424 0.08643 .00010 0.40146 .00009 0.096467 0.000008 13 5 13 56425 0.08827 .00010 0.40226 .00009 0.095551 0.000006 13 5 14 56426 0.08964 .00010 0.40319 .00009 0.094660 0.000006 13 5 15 56427 0.09063 .00009 0.40401 .00009 0.093733 0.000005 13 5 16 56428 0.09126 .00009 0.40463 .00009 0.092738 0.000004 _______________________________________________________________________ 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 = 0.0973 - 0.0518 cos A + 0.1325 sin A + 0.0496 cos C - 0.0572 sin C y = 0.3435 + 0.1151 cos A + 0.0468 sin A - 0.0572 cos C - 0.0496 sin C UT1-UTC = 0.1122 - 0.00099 (MJD - 56436) - (UT2-UT1) where A = 2*pi*(MJD-56428)/365.25 and C = 2*pi*(MJD-56428)/435. TAI-UTC(MJD 56429) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56428)**0.80 S t = 0.00025 (MJD-56428)**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 17 56429 0.0920 0.4049 0.09162 2013 5 18 56430 0.0928 0.4051 0.09039 2013 5 19 56431 0.0938 0.4052 0.08904 2013 5 20 56432 0.0951 0.4052 0.08761 2013 5 21 56433 0.0966 0.4052 0.08613 2013 5 22 56434 0.0981 0.4053 0.08466 2013 5 23 56435 0.0997 0.4053 0.08329 2013 5 24 56436 0.1013 0.4054 0.08205 2013 5 25 56437 0.1030 0.4054 0.08094 2013 5 26 56438 0.1046 0.4055 0.07991 2013 5 27 56439 0.1061 0.4055 0.07891 2013 5 28 56440 0.1077 0.4056 0.07786 2013 5 29 56441 0.1093 0.4055 0.07675 2013 5 30 56442 0.1108 0.4055 0.07555 2013 5 31 56443 0.1124 0.4054 0.07428 2013 6 1 56444 0.1139 0.4053 0.07301 2013 6 2 56445 0.1155 0.4051 0.07179 2013 6 3 56446 0.1171 0.4050 0.07067 2013 6 4 56447 0.1186 0.4048 0.06969 2013 6 5 56448 0.1202 0.4045 0.06887 2013 6 6 56449 0.1218 0.4042 0.06822 2013 6 7 56450 0.1234 0.4039 0.06771 2013 6 8 56451 0.1250 0.4036 0.06733 2013 6 9 56452 0.1266 0.4032 0.06702 2013 6 10 56453 0.1282 0.4028 0.06676 2013 6 11 56454 0.1298 0.4024 0.06649 2013 6 12 56455 0.1314 0.4020 0.06618 2013 6 13 56456 0.1329 0.4015 0.06578 2013 6 14 56457 0.1345 0.4010 0.06529 2013 6 15 56458 0.1361 0.4005 0.06471 2013 6 16 56459 0.1376 0.4000 0.06403 2013 6 17 56460 0.1391 0.3994 0.06329 2013 6 18 56461 0.1407 0.3988 0.06253 2013 6 19 56462 0.1422 0.3982 0.06180 2013 6 20 56463 0.1437 0.3975 0.06115 2013 6 21 56464 0.1452 0.3969 0.06060 2013 6 22 56465 0.1467 0.3961 0.06016 2013 6 23 56466 0.1482 0.3954 0.05977 2013 6 24 56467 0.1497 0.3947 0.05938 2013 6 25 56468 0.1511 0.3939 0.05891 2013 6 26 56469 0.1526 0.3931 0.05833 2013 6 27 56470 0.1540 0.3923 0.05766 2013 6 28 56471 0.1554 0.3914 0.05694 2013 6 29 56472 0.1568 0.3905 0.05625 2013 6 30 56473 0.1582 0.3896 0.05565 2013 7 1 56474 0.1595 0.3887 0.05518 2013 7 2 56475 0.1609 0.3878 0.05485 2013 7 3 56476 0.1622 0.3868 0.05467 2013 7 4 56477 0.1635 0.3858 0.05461 2013 7 5 56478 0.1648 0.3848 0.05467 2013 7 6 56479 0.1661 0.3838 0.05481 2013 7 7 56480 0.1673 0.3827 0.05497 2013 7 8 56481 0.1686 0.3816 0.05511 2013 7 9 56482 0.1698 0.3805 0.05521 2013 7 10 56483 0.1710 0.3794 0.05522 2013 7 11 56484 0.1721 0.3783 0.05514 2013 7 12 56485 0.1733 0.3771 0.05496 2013 7 13 56486 0.1744 0.3760 0.05469 2013 7 14 56487 0.1755 0.3748 0.05435 2013 7 15 56488 0.1766 0.3735 0.05399 2013 7 16 56489 0.1777 0.3723 0.05364 2013 7 17 56490 0.1787 0.3711 0.05334 2013 7 18 56491 0.1797 0.3698 0.05314 2013 7 19 56492 0.1807 0.3685 0.05302 2013 7 20 56493 0.1817 0.3672 0.05294 2013 7 21 56494 0.1826 0.3659 0.05285 2013 7 22 56495 0.1835 0.3646 0.05266 2013 7 23 56496 0.1844 0.3632 0.05232 2013 7 24 56497 0.1852 0.3618 0.05183 2013 7 25 56498 0.1861 0.3605 0.05121 2013 7 26 56499 0.1869 0.3591 0.05056 2013 7 27 56500 0.1877 0.3577 0.04995 2013 7 28 56501 0.1884 0.3562 0.04946 2013 7 29 56502 0.1891 0.3548 0.04910 2013 7 30 56503 0.1898 0.3534 0.04890 2013 7 31 56504 0.1905 0.3519 0.04884 2013 8 1 56505 0.1911 0.3504 0.04889 2013 8 2 56506 0.1918 0.3490 0.04902 2013 8 3 56507 0.1923 0.3475 0.04918 2013 8 4 56508 0.1929 0.3460 0.04933 2013 8 5 56509 0.1934 0.3444 0.04942 2013 8 6 56510 0.1939 0.3429 0.04941 2013 8 7 56511 0.1944 0.3414 0.04929 2013 8 8 56512 0.1948 0.3398 0.04904 2013 8 9 56513 0.1952 0.3383 0.04867 2013 8 10 56514 0.1956 0.3367 0.04823 2013 8 11 56515 0.1959 0.3352 0.04774 2013 8 12 56516 0.1962 0.3336 0.04725 2013 8 13 56517 0.1965 0.3320 0.04680 2013 8 14 56518 0.1967 0.3305 0.04643 2013 8 15 56519 0.1970 0.3289 0.04613 2013 8 16 56520 0.1971 0.3273 0.04589 2013 8 17 56521 0.1973 0.3257 0.04564 2013 8 18 56522 0.1974 0.3241 0.04533 2013 8 19 56523 0.1975 0.3225 0.04487 2013 8 20 56524 0.1976 0.3209 0.04425 2013 8 21 56525 0.1976 0.3193 0.04346 2013 8 22 56526 0.1976 0.3177 0.04257 2013 8 23 56527 0.1975 0.3161 0.04167 2013 8 24 56528 0.1975 0.3144 0.04082 2013 8 25 56529 0.1974 0.3128 0.04008 2013 8 26 56530 0.1972 0.3112 0.03949 2013 8 27 56531 0.1971 0.3096 0.03904 2013 8 28 56532 0.1969 0.3080 0.03870 2013 8 29 56533 0.1966 0.3064 0.03845 2013 8 30 56534 0.1964 0.3048 0.03824 2013 8 31 56535 0.1961 0.3032 0.03803 2013 9 1 56536 0.1957 0.3016 0.03777 2013 9 2 56537 0.1954 0.3000 0.03738 2013 9 3 56538 0.1950 0.2984 0.03686 2013 9 4 56539 0.1946 0.2968 0.03620 2013 9 5 56540 0.1941 0.2953 0.03541 2013 9 6 56541 0.1936 0.2937 0.03451 2013 9 7 56542 0.1931 0.2921 0.03353 2013 9 8 56543 0.1926 0.2906 0.03254 2013 9 9 56544 0.1920 0.2890 0.03158 2013 9 10 56545 0.1914 0.2875 0.03069 2013 9 11 56546 0.1907 0.2859 0.02989 2013 9 12 56547 0.1900 0.2844 0.02915 2013 9 13 56548 0.1893 0.2829 0.02844 2013 9 14 56549 0.1886 0.2814 0.02768 2013 9 15 56550 0.1878 0.2799 0.02682 2013 9 16 56551 0.1870 0.2784 0.02581 2013 9 17 56552 0.1862 0.2769 0.02464 2013 9 18 56553 0.1853 0.2755 0.02334 2013 9 19 56554 0.1844 0.2740 0.02198 2013 9 20 56555 0.1835 0.2726 0.02063 2013 9 21 56556 0.1825 0.2712 0.01937 2013 9 22 56557 0.1816 0.2698 0.01824 2013 9 23 56558 0.1805 0.2684 0.01725 2013 9 24 56559 0.1795 0.2670 0.01640 2013 9 25 56560 0.1784 0.2657 0.01566 2013 9 26 56561 0.1773 0.2643 0.01497 2013 9 27 56562 0.1762 0.2630 0.01429 2013 9 28 56563 0.1751 0.2617 0.01359 2013 9 29 56564 0.1739 0.2604 0.01281 2013 9 30 56565 0.1727 0.2591 0.01191 2013 10 1 56566 0.1714 0.2578 0.01089 2013 10 2 56567 0.1702 0.2566 0.00973 2013 10 3 56568 0.1689 0.2554 0.00845 2013 10 4 56569 0.1676 0.2542 0.00708 2013 10 5 56570 0.1662 0.2530 0.00566 2013 10 6 56571 0.1649 0.2518 0.00426 2013 10 7 56572 0.1635 0.2507 0.00293 2013 10 8 56573 0.1621 0.2496 0.00169 2013 10 9 56574 0.1606 0.2485 0.00054 2013 10 10 56575 0.1592 0.2474 -0.00056 2013 10 11 56576 0.1577 0.2463 -0.00166 2013 10 12 56577 0.1562 0.2453 -0.00284 2013 10 13 56578 0.1547 0.2443 -0.00414 2013 10 14 56579 0.1531 0.2433 -0.00556 2013 10 15 56580 0.1515 0.2423 -0.00711 2013 10 16 56581 0.1500 0.2414 -0.00873 2013 10 17 56582 0.1483 0.2405 -0.01037 2013 10 18 56583 0.1467 0.2396 -0.01195 2013 10 19 56584 0.1451 0.2387 -0.01341 2013 10 20 56585 0.1434 0.2379 -0.01474 2013 10 21 56586 0.1417 0.2371 -0.01592 2013 10 22 56587 0.1400 0.2363 -0.01698 2013 10 23 56588 0.1383 0.2355 -0.01796 2013 10 24 56589 0.1365 0.2348 -0.01890 2013 10 25 56590 0.1348 0.2341 -0.01984 2013 10 26 56591 0.1330 0.2334 -0.02082 2013 10 27 56592 0.1312 0.2328 -0.02189 2013 10 28 56593 0.1294 0.2322 -0.02307 2013 10 29 56594 0.1276 0.2316 -0.02437 2013 10 30 56595 0.1257 0.2310 -0.02578 2013 10 31 56596 0.1239 0.2305 -0.02729 2013 11 1 56597 0.1220 0.2299 -0.02887 2013 11 2 56598 0.1201 0.2295 -0.03045 2013 11 3 56599 0.1182 0.2290 -0.03199 2013 11 4 56600 0.1163 0.2286 -0.03344 2013 11 5 56601 0.1144 0.2282 -0.03479 2013 11 6 56602 0.1125 0.2278 -0.03607 2013 11 7 56603 0.1106 0.2275 -0.03732 2013 11 8 56604 0.1086 0.2272 -0.03861 2013 11 9 56605 0.1067 0.2269 -0.03999 2013 11 10 56606 0.1047 0.2267 -0.04149 2013 11 11 56607 0.1028 0.2265 -0.04309 2013 11 12 56608 0.1008 0.2263 -0.04475 2013 11 13 56609 0.0988 0.2261 -0.04642 2013 11 14 56610 0.0968 0.2260 -0.04805 2013 11 15 56611 0.0949 0.2259 -0.04959 2013 11 16 56612 0.0929 0.2259 -0.05101 2013 11 17 56613 0.0909 0.2258 -0.05231 2013 11 18 56614 0.0889 0.2259 -0.05349 2013 11 19 56615 0.0869 0.2259 -0.05458 2013 11 20 56616 0.0849 0.2260 -0.05563 2013 11 21 56617 0.0829 0.2261 -0.05668 2013 11 22 56618 0.0809 0.2262 -0.05776 2013 11 23 56619 0.0788 0.2264 -0.05890 2013 11 24 56620 0.0768 0.2266 -0.06012 2013 11 25 56621 0.0748 0.2268 -0.06142 2013 11 26 56622 0.0728 0.2270 -0.06282 2013 11 27 56623 0.0708 0.2273 -0.06430 2013 11 28 56624 0.0688 0.2276 -0.06587 2013 11 29 56625 0.0668 0.2280 -0.06747 2013 11 30 56626 0.0649 0.2284 -0.06908 2013 12 1 56627 0.0629 0.2288 -0.07063 2013 12 2 56628 0.0609 0.2292 -0.07209 2013 12 3 56629 0.0589 0.2297 -0.07345 2013 12 4 56630 0.0569 0.2302 -0.07474 2013 12 5 56631 0.0550 0.2308 -0.07600 2013 12 6 56632 0.0530 0.2314 -0.07728 2013 12 7 56633 0.0511 0.2320 -0.07860 2013 12 8 56634 0.0492 0.2326 -0.07996 2013 12 9 56635 0.0472 0.2333 -0.08133 2013 12 10 56636 0.0453 0.2340 -0.08265 2013 12 11 56637 0.0434 0.2347 -0.08389 2013 12 12 56638 0.0415 0.2354 -0.08502 2013 12 13 56639 0.0396 0.2362 -0.08601 2013 12 14 56640 0.0378 0.2370 -0.08685 2013 12 15 56641 0.0359 0.2379 -0.08754 2013 12 16 56642 0.0341 0.2388 -0.08810 2013 12 17 56643 0.0322 0.2397 -0.08856 2013 12 18 56644 0.0304 0.2406 -0.08896 2013 12 19 56645 0.0286 0.2416 -0.08934 2013 12 20 56646 0.0268 0.2426 -0.08974 2013 12 21 56647 0.0251 0.2436 -0.09019 2013 12 22 56648 0.0233 0.2447 -0.09069 2013 12 23 56649 0.0216 0.2457 -0.09125 2013 12 24 56650 0.0199 0.2468 -0.09189 2013 12 25 56651 0.0182 0.2480 -0.09261 2013 12 26 56652 0.0165 0.2491 -0.09339 2013 12 27 56653 0.0149 0.2503 -0.09421 2013 12 28 56654 0.0132 0.2515 -0.09506 2013 12 29 56655 0.0116 0.2528 -0.09586 2013 12 30 56656 0.0100 0.2541 -0.09662 2013 12 31 56657 0.0085 0.2554 -0.09736 2014 1 1 56658 0.0069 0.2567 -0.09812 2014 1 2 56659 0.0054 0.2580 -0.09896 2014 1 3 56660 0.0039 0.2594 -0.09991 2014 1 4 56661 0.0024 0.2608 -0.10103 2014 1 5 56662 0.0010 0.2622 -0.10226 2014 1 6 56663 -0.0004 0.2637 -0.10351 2014 1 7 56664 -0.0018 0.2651 -0.10469 2014 1 8 56665 -0.0032 0.2666 -0.10573 2014 1 9 56666 -0.0045 0.2681 -0.10662 2014 1 10 56667 -0.0059 0.2697 -0.10737 2014 1 11 56668 -0.0072 0.2712 -0.10800 2014 1 12 56669 -0.0084 0.2728 -0.10853 2014 1 13 56670 -0.0097 0.2744 -0.10898 2014 1 14 56671 -0.0109 0.2760 -0.10949 2014 1 15 56672 -0.0120 0.2776 -0.11007 2014 1 16 56673 -0.0132 0.2793 -0.11076 2014 1 17 56674 -0.0143 0.2810 -0.11155 2014 1 18 56675 -0.0154 0.2827 -0.11245 2014 1 19 56676 -0.0164 0.2844 -0.11341 2014 1 20 56677 -0.0175 0.2861 -0.11438 2014 1 21 56678 -0.0185 0.2879 -0.11538 2014 1 22 56679 -0.0194 0.2896 -0.11640 2014 1 23 56680 -0.0203 0.2914 -0.11743 2014 1 24 56681 -0.0212 0.2932 -0.11842 2014 1 25 56682 -0.0221 0.2950 -0.11945 2014 1 26 56683 -0.0229 0.2969 -0.12049 2014 1 27 56684 -0.0237 0.2987 -0.12150 2014 1 28 56685 -0.0245 0.3006 -0.12256 2014 1 29 56686 -0.0252 0.3024 -0.12371 2014 1 30 56687 -0.0259 0.3043 -0.12503 2014 1 31 56688 -0.0266 0.3062 -0.12649 2014 2 1 56689 -0.0272 0.3081 -0.12803 2014 2 2 56690 -0.0278 0.3101 -0.12965 2014 2 3 56691 -0.0283 0.3120 -0.13127 2014 2 4 56692 -0.0288 0.3139 -0.13279 2014 2 5 56693 -0.0293 0.3159 -0.13412 2014 2 6 56694 -0.0298 0.3178 -0.13524 2014 2 7 56695 -0.0302 0.3198 -0.13626 2014 2 8 56696 -0.0306 0.3218 -0.13714 2014 2 9 56697 -0.0309 0.3238 -0.13791 2014 2 10 56698 -0.0312 0.3257 -0.13871 2014 2 11 56699 -0.0314 0.3277 -0.13955 2014 2 12 56700 -0.0317 0.3297 -0.14042 2014 2 13 56701 -0.0319 0.3317 -0.14133 2014 2 14 56702 -0.0320 0.3338 -0.14239 2014 2 15 56703 -0.0321 0.3358 -0.14355 2014 2 16 56704 -0.0322 0.3378 -0.14483 2014 2 17 56705 -0.0322 0.3398 -0.14619 2014 2 18 56706 -0.0322 0.3418 -0.14755 2014 2 19 56707 -0.0322 0.3439 -0.14884 2014 2 20 56708 -0.0321 0.3459 -0.15007 2014 2 21 56709 -0.0320 0.3479 -0.15125 2014 2 22 56710 -0.0318 0.3499 -0.15237 2014 2 23 56711 -0.0316 0.3519 -0.15348 2014 2 24 56712 -0.0314 0.3540 -0.15457 2014 2 25 56713 -0.0311 0.3560 -0.15570 2014 2 26 56714 -0.0308 0.3580 -0.15695 2014 2 27 56715 -0.0304 0.3600 -0.15837 2014 2 28 56716 -0.0301 0.3620 -0.15997 2014 3 1 56717 -0.0296 0.3640 -0.16176 2014 3 2 56718 -0.0292 0.3660 -0.16364 2014 3 3 56719 -0.0287 0.3680 -0.16551 2014 3 4 56720 -0.0281 0.3700 -0.16727 2014 3 5 56721 -0.0275 0.3720 -0.16888 2014 3 6 56722 -0.0269 0.3740 -0.17035 2014 3 7 56723 -0.0263 0.3760 -0.17172 2014 3 8 56724 -0.0256 0.3779 -0.17293 2014 3 9 56725 -0.0249 0.3799 -0.17407 2014 3 10 56726 -0.0241 0.3818 -0.17521 2014 3 11 56727 -0.0233 0.3837 -0.17643 2014 3 12 56728 -0.0224 0.3856 -0.17776 2014 3 13 56729 -0.0216 0.3876 -0.17917 2014 3 14 56730 -0.0206 0.3894 -0.18067 2014 3 15 56731 -0.0197 0.3913 -0.18233 2014 3 16 56732 -0.0187 0.3932 -0.18408 2014 3 17 56733 -0.0177 0.3950 -0.18590 2014 3 18 56734 -0.0166 0.3969 -0.18772 2014 3 19 56735 -0.0155 0.3987 -0.18950 2014 3 20 56736 -0.0144 0.4005 -0.19123 2014 3 21 56737 -0.0132 0.4023 -0.19289 2014 3 22 56738 -0.0120 0.4041 -0.19443 2014 3 23 56739 -0.0108 0.4059 -0.19592 2014 3 24 56740 -0.0095 0.4076 -0.19742 2014 3 25 56741 -0.0082 0.4093 -0.19899 2014 3 26 56742 -0.0069 0.4110 -0.20073 2014 3 27 56743 -0.0055 0.4127 -0.20266 2014 3 28 56744 -0.0041 0.4144 -0.20478 2014 3 29 56745 -0.0026 0.4160 -0.20700 2014 3 30 56746 -0.0012 0.4176 -0.20920 2014 3 31 56747 0.0003 0.4192 -0.21133 2014 4 1 56748 0.0019 0.4208 -0.21325 2014 4 2 56749 0.0035 0.4224 -0.21492 2014 4 3 56750 0.0051 0.4239 -0.21643 2014 4 4 56751 0.0067 0.4254 -0.21776 2014 4 5 56752 0.0083 0.4269 -0.21894 2014 4 6 56753 0.0100 0.4284 -0.22014 2014 4 7 56754 0.0118 0.4298 -0.22134 2014 4 8 56755 0.0135 0.4312 -0.22255 2014 4 9 56756 0.0153 0.4326 -0.22379 2014 4 10 56757 0.0171 0.4340 -0.22505 2014 4 11 56758 0.0189 0.4353 -0.22636 2014 4 12 56759 0.0208 0.4366 -0.22768 2014 4 13 56760 0.0227 0.4379 -0.22905 2014 4 14 56761 0.0246 0.4391 -0.23048 2014 4 15 56762 0.0265 0.4404 -0.23189 2014 4 16 56763 0.0285 0.4416 -0.23324 2014 4 17 56764 0.0305 0.4427 -0.23451 2014 4 18 56765 0.0325 0.4439 -0.23568 2014 4 19 56766 0.0345 0.4450 -0.23678 2014 4 20 56767 0.0366 0.4460 -0.23789 2014 4 21 56768 0.0386 0.4471 -0.23906 2014 4 22 56769 0.0408 0.4481 -0.24031 2014 4 23 56770 0.0429 0.4491 -0.24170 2014 4 24 56771 0.0450 0.4500 -0.24324 2014 4 25 56772 0.0472 0.4509 -0.24487 2014 4 26 56773 0.0494 0.4518 -0.24658 2014 4 27 56774 0.0516 0.4527 -0.24832 2014 4 28 56775 0.0538 0.4535 -0.25003 2014 4 29 56776 0.0560 0.4543 -0.25162 2014 4 30 56777 0.0583 0.4550 -0.25308 2014 5 1 56778 0.0606 0.4557 -0.25440 2014 5 2 56779 0.0629 0.4564 -0.25556 2014 5 3 56780 0.0652 0.4570 -0.25664 2014 5 4 56781 0.0675 0.4577 -0.25770 2014 5 5 56782 0.0698 0.4582 -0.25878 2014 5 6 56783 0.0722 0.4588 -0.25989 2014 5 7 56784 0.0745 0.4593 -0.26106 2014 5 8 56785 0.0769 0.4597 -0.26236 2014 5 9 56786 0.0793 0.4602 -0.26379 2014 5 10 56787 0.0817 0.4606 -0.26522 2014 5 11 56788 0.0841 0.4609 -0.26666 2014 5 12 56789 0.0865 0.4613 -0.26806 2014 5 13 56790 0.0889 0.4615 -0.26947 2014 5 14 56791 0.0914 0.4618 -0.27088 2014 5 15 56792 0.0938 0.4620 -0.27218 2014 5 16 56793 0.0962 0.4622 -0.27336 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) 56409 -74.01 0.19 -13.24 0.10 56410 -74.07 0.30 -13.59 0.06 56411 -74.03 0.30 -13.81 0.06 56412 -73.99 0.30 -13.81 0.05 56413 -74.08 0.30 -13.69 0.05 56414 -74.26 0.30 -13.57 0.05 56415 -74.41 0.30 -13.49 0.05 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56409 0.181 0.076 -0.331 0.100 56410 0.163 0.119 -0.323 0.060 56411 0.143 0.119 -0.343 0.060 56412 0.127 0.119 -0.365 0.050 56413 0.107 0.119 -0.359 0.050 56414 0.091 0.119 -0.318 0.050 56415 0.075 0.119 -0.263 0.050 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).