********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 May 2013 Vol. XXVI No. 021 ______________________________________________________________________ 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 17 56429 0.09171 .00010 0.40478 .00009 0.091602 0.000013 13 5 18 56430 0.09238 .00010 0.40486 .00009 0.090350 0.000014 13 5 19 56431 0.09344 .00010 0.40486 .00009 0.088957 0.000014 13 5 20 56432 0.09495 .00010 0.40488 .00009 0.087474 0.000007 13 5 21 56433 0.09666 .00010 0.40517 .00009 0.085958 0.000005 13 5 22 56434 0.09817 .00010 0.40580 .00010 0.084470 0.000003 13 5 23 56435 0.09943 .00010 0.40662 .00010 0.083052 0.000002 _______________________________________________________________________ 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 = 0.0966 - 0.0369 cos A + 0.1355 sin A + 0.0437 cos C - 0.0593 sin C y = 0.3447 + 0.1181 cos A + 0.0340 sin A - 0.0593 cos C - 0.0437 sin C UT1-UTC = 0.1050 - 0.00099 (MJD - 56443) - (UT2-UT1) where A = 2*pi*(MJD-56435)/365.25 and C = 2*pi*(MJD-56435)/435. TAI-UTC(MJD 56436) = 35.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-56435)**0.80 S t = 0.00025 (MJD-56435)**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 24 56436 0.1006 0.4072 0.08174 2013 5 25 56437 0.1019 0.4077 0.08057 2013 5 26 56438 0.1032 0.4080 0.07953 2013 5 27 56439 0.1046 0.4082 0.07861 2013 5 28 56440 0.1061 0.4082 0.07774 2013 5 29 56441 0.1076 0.4082 0.07687 2013 5 30 56442 0.1092 0.4082 0.07598 2013 5 31 56443 0.1107 0.4081 0.07505 2013 6 1 56444 0.1123 0.4081 0.07410 2013 6 2 56445 0.1140 0.4080 0.07315 2013 6 3 56446 0.1156 0.4079 0.07219 2013 6 4 56447 0.1172 0.4078 0.07129 2013 6 5 56448 0.1188 0.4077 0.07050 2013 6 6 56449 0.1204 0.4075 0.06984 2013 6 7 56450 0.1220 0.4073 0.06929 2013 6 8 56451 0.1236 0.4071 0.06885 2013 6 9 56452 0.1252 0.4068 0.06847 2013 6 10 56453 0.1269 0.4065 0.06812 2013 6 11 56454 0.1285 0.4061 0.06775 2013 6 12 56455 0.1301 0.4057 0.06732 2013 6 13 56456 0.1318 0.4053 0.06680 2013 6 14 56457 0.1334 0.4048 0.06619 2013 6 15 56458 0.1350 0.4044 0.06548 2013 6 16 56459 0.1366 0.4039 0.06469 2013 6 17 56460 0.1382 0.4033 0.06385 2013 6 18 56461 0.1398 0.4027 0.06299 2013 6 19 56462 0.1413 0.4021 0.06218 2013 6 20 56463 0.1429 0.4015 0.06146 2013 6 21 56464 0.1445 0.4009 0.06086 2013 6 22 56465 0.1460 0.4002 0.06038 2013 6 23 56466 0.1476 0.3995 0.05996 2013 6 24 56467 0.1491 0.3987 0.05954 2013 6 25 56468 0.1506 0.3980 0.05904 2013 6 26 56469 0.1521 0.3972 0.05843 2013 6 27 56470 0.1536 0.3963 0.05773 2013 6 28 56471 0.1551 0.3955 0.05699 2013 6 29 56472 0.1565 0.3946 0.05628 2013 6 30 56473 0.1580 0.3937 0.05565 2013 7 1 56474 0.1594 0.3928 0.05516 2013 7 2 56475 0.1608 0.3919 0.05481 2013 7 3 56476 0.1622 0.3909 0.05461 2013 7 4 56477 0.1636 0.3899 0.05456 2013 7 5 56478 0.1649 0.3889 0.05462 2013 7 6 56479 0.1663 0.3879 0.05477 2013 7 7 56480 0.1676 0.3868 0.05494 2013 7 8 56481 0.1689 0.3857 0.05509 2013 7 9 56482 0.1701 0.3846 0.05519 2013 7 10 56483 0.1714 0.3835 0.05519 2013 7 11 56484 0.1726 0.3823 0.05508 2013 7 12 56485 0.1738 0.3812 0.05485 2013 7 13 56486 0.1750 0.3800 0.05452 2013 7 14 56487 0.1762 0.3788 0.05411 2013 7 15 56488 0.1773 0.3775 0.05366 2013 7 16 56489 0.1784 0.3763 0.05323 2013 7 17 56490 0.1795 0.3750 0.05285 2013 7 18 56491 0.1806 0.3737 0.05256 2013 7 19 56492 0.1817 0.3724 0.05235 2013 7 20 56493 0.1827 0.3711 0.05221 2013 7 21 56494 0.1837 0.3698 0.05206 2013 7 22 56495 0.1846 0.3684 0.05185 2013 7 23 56496 0.1856 0.3671 0.05151 2013 7 24 56497 0.1865 0.3657 0.05104 2013 7 25 56498 0.1874 0.3643 0.05047 2013 7 26 56499 0.1882 0.3628 0.04987 2013 7 27 56500 0.1891 0.3614 0.04932 2013 7 28 56501 0.1899 0.3600 0.04889 2013 7 29 56502 0.1907 0.3585 0.04860 2013 7 30 56503 0.1914 0.3570 0.04846 2013 7 31 56504 0.1921 0.3555 0.04845 2013 8 1 56505 0.1928 0.3540 0.04855 2013 8 2 56506 0.1935 0.3525 0.04870 2013 8 3 56507 0.1941 0.3510 0.04887 2013 8 4 56508 0.1947 0.3495 0.04901 2013 8 5 56509 0.1953 0.3479 0.04908 2013 8 6 56510 0.1958 0.3464 0.04905 2013 8 7 56511 0.1964 0.3448 0.04889 2013 8 8 56512 0.1968 0.3432 0.04859 2013 8 9 56513 0.1973 0.3416 0.04818 2013 8 10 56514 0.1977 0.3401 0.04768 2013 8 11 56515 0.1981 0.3385 0.04712 2013 8 12 56516 0.1985 0.3369 0.04657 2013 8 13 56517 0.1988 0.3352 0.04607 2013 8 14 56518 0.1991 0.3336 0.04564 2013 8 15 56519 0.1993 0.3320 0.04529 2013 8 16 56520 0.1996 0.3304 0.04499 2013 8 17 56521 0.1998 0.3287 0.04469 2013 8 18 56522 0.1999 0.3271 0.04433 2013 8 19 56523 0.2001 0.3254 0.04384 2013 8 20 56524 0.2002 0.3238 0.04319 2013 8 21 56525 0.2002 0.3222 0.04239 2013 8 22 56526 0.2003 0.3205 0.04149 2013 8 23 56527 0.2003 0.3188 0.04059 2013 8 24 56528 0.2002 0.3172 0.03975 2013 8 25 56529 0.2002 0.3155 0.03903 2013 8 26 56530 0.2001 0.3139 0.03847 2013 8 27 56531 0.1999 0.3122 0.03804 2013 8 28 56532 0.1998 0.3106 0.03774 2013 8 29 56533 0.1996 0.3089 0.03751 2013 8 30 56534 0.1994 0.3073 0.03731 2013 8 31 56535 0.1991 0.3056 0.03711 2013 9 1 56536 0.1988 0.3040 0.03685 2013 9 2 56537 0.1985 0.3023 0.03648 2013 9 3 56538 0.1981 0.3007 0.03598 2013 9 4 56539 0.1977 0.2991 0.03534 2013 9 5 56540 0.1973 0.2974 0.03456 2013 9 6 56541 0.1968 0.2958 0.03366 2013 9 7 56542 0.1963 0.2942 0.03268 2013 9 8 56543 0.1958 0.2926 0.03168 2013 9 9 56544 0.1953 0.2910 0.03070 2013 9 10 56545 0.1947 0.2894 0.02978 2013 9 11 56546 0.1940 0.2878 0.02895 2013 9 12 56547 0.1934 0.2862 0.02818 2013 9 13 56548 0.1927 0.2847 0.02743 2013 9 14 56549 0.1920 0.2831 0.02664 2013 9 15 56550 0.1912 0.2816 0.02574 2013 9 16 56551 0.1905 0.2800 0.02469 2013 9 17 56552 0.1896 0.2785 0.02348 2013 9 18 56553 0.1888 0.2770 0.02214 2013 9 19 56554 0.1879 0.2755 0.02073 2013 9 20 56555 0.1870 0.2740 0.01934 2013 9 21 56556 0.1861 0.2725 0.01804 2013 9 22 56557 0.1851 0.2711 0.01686 2013 9 23 56558 0.1841 0.2696 0.01584 2013 9 24 56559 0.1831 0.2682 0.01495 2013 9 25 56560 0.1820 0.2668 0.01416 2013 9 26 56561 0.1810 0.2654 0.01344 2013 9 27 56562 0.1798 0.2640 0.01273 2013 9 28 56563 0.1787 0.2626 0.01199 2013 9 29 56564 0.1775 0.2613 0.01118 2013 9 30 56565 0.1763 0.2599 0.01025 2013 10 1 56566 0.1751 0.2586 0.00920 2013 10 2 56567 0.1739 0.2573 0.00802 2013 10 3 56568 0.1726 0.2560 0.00671 2013 10 4 56569 0.1713 0.2548 0.00531 2013 10 5 56570 0.1699 0.2535 0.00387 2013 10 6 56571 0.1686 0.2523 0.00245 2013 10 7 56572 0.1672 0.2511 0.00110 2013 10 8 56573 0.1658 0.2500 -0.00016 2013 10 9 56574 0.1643 0.2488 -0.00133 2013 10 10 56575 0.1629 0.2477 -0.00244 2013 10 11 56576 0.1614 0.2466 -0.00356 2013 10 12 56577 0.1599 0.2455 -0.00475 2013 10 13 56578 0.1584 0.2444 -0.00606 2013 10 14 56579 0.1568 0.2434 -0.00750 2013 10 15 56580 0.1552 0.2423 -0.00905 2013 10 16 56581 0.1536 0.2413 -0.01068 2013 10 17 56582 0.1520 0.2404 -0.01232 2013 10 18 56583 0.1504 0.2394 -0.01391 2013 10 19 56584 0.1487 0.2385 -0.01538 2013 10 20 56585 0.1470 0.2376 -0.01671 2013 10 21 56586 0.1453 0.2367 -0.01790 2013 10 22 56587 0.1436 0.2359 -0.01897 2013 10 23 56588 0.1419 0.2351 -0.01995 2013 10 24 56589 0.1401 0.2343 -0.02089 2013 10 25 56590 0.1384 0.2335 -0.02183 2013 10 26 56591 0.1366 0.2328 -0.02282 2013 10 27 56592 0.1348 0.2321 -0.02390 2013 10 28 56593 0.1329 0.2314 -0.02508 2013 10 29 56594 0.1311 0.2308 -0.02638 2013 10 30 56595 0.1292 0.2302 -0.02780 2013 10 31 56596 0.1274 0.2296 -0.02932 2013 11 1 56597 0.1255 0.2290 -0.03090 2013 11 2 56598 0.1236 0.2285 -0.03248 2013 11 3 56599 0.1217 0.2280 -0.03402 2013 11 4 56600 0.1198 0.2275 -0.03547 2013 11 5 56601 0.1178 0.2270 -0.03682 2013 11 6 56602 0.1159 0.2266 -0.03809 2013 11 7 56603 0.1139 0.2262 -0.03933 2013 11 8 56604 0.1120 0.2259 -0.04061 2013 11 9 56605 0.1100 0.2256 -0.04198 2013 11 10 56606 0.1080 0.2253 -0.04346 2013 11 11 56607 0.1060 0.2250 -0.04503 2013 11 12 56608 0.1040 0.2248 -0.04666 2013 11 13 56609 0.1020 0.2246 -0.04830 2013 11 14 56610 0.1000 0.2244 -0.04988 2013 11 15 56611 0.0980 0.2243 -0.05137 2013 11 16 56612 0.0960 0.2242 -0.05273 2013 11 17 56613 0.0939 0.2241 -0.05394 2013 11 18 56614 0.0919 0.2241 -0.05503 2013 11 19 56615 0.0899 0.2240 -0.05603 2013 11 20 56616 0.0878 0.2241 -0.05698 2013 11 21 56617 0.0858 0.2241 -0.05792 2013 11 22 56618 0.0838 0.2242 -0.05889 2013 11 23 56619 0.0817 0.2243 -0.05994 2013 11 24 56620 0.0797 0.2245 -0.06110 2013 11 25 56621 0.0776 0.2247 -0.06238 2013 11 26 56622 0.0756 0.2249 -0.06378 2013 11 27 56623 0.0735 0.2251 -0.06529 2013 11 28 56624 0.0715 0.2254 -0.06689 2013 11 29 56625 0.0695 0.2257 -0.06852 2013 11 30 56626 0.0674 0.2261 -0.07012 2013 12 1 56627 0.0654 0.2264 -0.07165 2013 12 2 56628 0.0634 0.2269 -0.07306 2013 12 3 56629 0.0614 0.2273 -0.07435 2013 12 4 56630 0.0594 0.2278 -0.07557 2013 12 5 56631 0.0574 0.2283 -0.07681 2013 12 6 56632 0.0554 0.2288 -0.07812 2013 12 7 56633 0.0534 0.2294 -0.07957 2013 12 8 56634 0.0514 0.2300 -0.08113 2013 12 9 56635 0.0494 0.2306 -0.08278 2013 12 10 56636 0.0474 0.2313 -0.08444 2013 12 11 56637 0.0455 0.2320 -0.08606 2013 12 12 56638 0.0436 0.2327 -0.08756 2013 12 13 56639 0.0416 0.2335 -0.08893 2013 12 14 56640 0.0397 0.2342 -0.09012 2013 12 15 56641 0.0378 0.2351 -0.09115 2013 12 16 56642 0.0359 0.2359 -0.09202 2013 12 17 56643 0.0340 0.2368 -0.09275 2013 12 18 56644 0.0322 0.2377 -0.09339 2013 12 19 56645 0.0303 0.2386 -0.09397 2013 12 20 56646 0.0285 0.2396 -0.09454 2013 12 21 56647 0.0267 0.2406 -0.09516 2013 12 22 56648 0.0249 0.2416 -0.09585 2013 12 23 56649 0.0231 0.2427 -0.09666 2013 12 24 56650 0.0213 0.2438 -0.09758 2013 12 25 56651 0.0196 0.2449 -0.09858 2013 12 26 56652 0.0178 0.2460 -0.09962 2013 12 27 56653 0.0161 0.2472 -0.10063 2013 12 28 56654 0.0144 0.2484 -0.10160 2013 12 29 56655 0.0128 0.2496 -0.10249 2013 12 30 56656 0.0111 0.2509 -0.10328 2013 12 31 56657 0.0095 0.2522 -0.10399 2014 1 1 56658 0.0079 0.2535 -0.10469 2014 1 2 56659 0.0063 0.2548 -0.10544 2014 1 3 56660 0.0048 0.2562 -0.10630 2014 1 4 56661 0.0032 0.2575 -0.10725 2014 1 5 56662 0.0017 0.2589 -0.10826 2014 1 6 56663 0.0002 0.2604 -0.10926 2014 1 7 56664 -0.0012 0.2618 -0.11019 2014 1 8 56665 -0.0026 0.2633 -0.11105 2014 1 9 56666 -0.0041 0.2648 -0.11176 2014 1 10 56667 -0.0054 0.2663 -0.11237 2014 1 11 56668 -0.0068 0.2679 -0.11291 2014 1 12 56669 -0.0081 0.2695 -0.11334 2014 1 13 56670 -0.0094 0.2710 -0.11373 2014 1 14 56671 -0.0107 0.2727 -0.11411 2014 1 15 56672 -0.0119 0.2743 -0.11450 2014 1 16 56673 -0.0131 0.2760 -0.11493 2014 1 17 56674 -0.0143 0.2776 -0.11544 2014 1 18 56675 -0.0154 0.2793 -0.11607 2014 1 19 56676 -0.0166 0.2810 -0.11683 2014 1 20 56677 -0.0176 0.2828 -0.11767 2014 1 21 56678 -0.0187 0.2845 -0.11857 2014 1 22 56679 -0.0197 0.2863 -0.11948 2014 1 23 56680 -0.0207 0.2881 -0.12040 2014 1 24 56681 -0.0217 0.2899 -0.12131 2014 1 25 56682 -0.0226 0.2917 -0.12220 2014 1 26 56683 -0.0235 0.2935 -0.12303 2014 1 27 56684 -0.0243 0.2954 -0.12383 2014 1 28 56685 -0.0252 0.2973 -0.12473 2014 1 29 56686 -0.0259 0.2991 -0.12576 2014 1 30 56687 -0.0267 0.3010 -0.12698 2014 1 31 56688 -0.0274 0.3029 -0.12839 2014 2 1 56689 -0.0281 0.3048 -0.12997 2014 2 2 56690 -0.0287 0.3068 -0.13160 2014 2 3 56691 -0.0294 0.3087 -0.13315 2014 2 4 56692 -0.0299 0.3107 -0.13457 2014 2 5 56693 -0.0305 0.3126 -0.13583 2014 2 6 56694 -0.0310 0.3146 -0.13693 2014 2 7 56695 -0.0315 0.3166 -0.13786 2014 2 8 56696 -0.0319 0.3186 -0.13875 2014 2 9 56697 -0.0323 0.3206 -0.13961 2014 2 10 56698 -0.0326 0.3226 -0.14044 2014 2 11 56699 -0.0330 0.3246 -0.14131 2014 2 12 56700 -0.0332 0.3266 -0.14223 2014 2 13 56701 -0.0335 0.3287 -0.14328 2014 2 14 56702 -0.0337 0.3307 -0.14440 2014 2 15 56703 -0.0338 0.3327 -0.14556 2014 2 16 56704 -0.0340 0.3348 -0.14680 2014 2 17 56705 -0.0341 0.3368 -0.14813 2014 2 18 56706 -0.0341 0.3389 -0.14948 2014 2 19 56707 -0.0341 0.3409 -0.15082 2014 2 20 56708 -0.0341 0.3430 -0.15209 2014 2 21 56709 -0.0340 0.3450 -0.15335 2014 2 22 56710 -0.0339 0.3471 -0.15454 2014 2 23 56711 -0.0338 0.3491 -0.15567 2014 2 24 56712 -0.0336 0.3512 -0.15686 2014 2 25 56713 -0.0334 0.3532 -0.15814 2014 2 26 56714 -0.0331 0.3553 -0.15950 2014 2 27 56715 -0.0329 0.3573 -0.16101 2014 2 28 56716 -0.0325 0.3594 -0.16274 2014 3 1 56717 -0.0321 0.3614 -0.16460 2014 3 2 56718 -0.0317 0.3634 -0.16656 2014 3 3 56719 -0.0313 0.3655 -0.16849 2014 3 4 56720 -0.0308 0.3675 -0.17026 2014 3 5 56721 -0.0303 0.3695 -0.17179 2014 3 6 56722 -0.0297 0.3715 -0.17310 2014 3 7 56723 -0.0291 0.3735 -0.17427 2014 3 8 56724 -0.0284 0.3755 -0.17533 2014 3 9 56725 -0.0278 0.3775 -0.17635 2014 3 10 56726 -0.0270 0.3795 -0.17734 2014 3 11 56727 -0.0263 0.3815 -0.17835 2014 3 12 56728 -0.0255 0.3834 -0.17942 2014 3 13 56729 -0.0247 0.3854 -0.18059 2014 3 14 56730 -0.0238 0.3873 -0.18187 2014 3 15 56731 -0.0229 0.3892 -0.18329 2014 3 16 56732 -0.0219 0.3911 -0.18483 2014 3 17 56733 -0.0210 0.3930 -0.18644 2014 3 18 56734 -0.0199 0.3949 -0.18807 2014 3 19 56735 -0.0189 0.3968 -0.18969 2014 3 20 56736 -0.0178 0.3987 -0.19129 2014 3 21 56737 -0.0167 0.4005 -0.19285 2014 3 22 56738 -0.0155 0.4023 -0.19431 2014 3 23 56739 -0.0143 0.4041 -0.19571 2014 3 24 56740 -0.0131 0.4059 -0.19715 2014 3 25 56741 -0.0118 0.4077 -0.19872 2014 3 26 56742 -0.0105 0.4094 -0.20046 2014 3 27 56743 -0.0091 0.4112 -0.20236 2014 3 28 56744 -0.0078 0.4129 -0.20439 2014 3 29 56745 -0.0064 0.4146 -0.20657 2014 3 30 56746 -0.0049 0.4163 -0.20880 2014 3 31 56747 -0.0035 0.4179 -0.21096 2014 4 1 56748 -0.0020 0.4196 -0.21297 2014 4 2 56749 -0.0004 0.4212 -0.21479 2014 4 3 56750 0.0012 0.4228 -0.21645 2014 4 4 56751 0.0028 0.4243 -0.21796 2014 4 5 56752 0.0044 0.4259 -0.21934 2014 4 6 56753 0.0060 0.4274 -0.22065 2014 4 7 56754 0.0077 0.4289 -0.22195 2014 4 8 56755 0.0095 0.4303 -0.22329 2014 4 9 56756 0.0112 0.4318 -0.22473 2014 4 10 56757 0.0130 0.4332 -0.22630 2014 4 11 56758 0.0148 0.4346 -0.22798 2014 4 12 56759 0.0166 0.4359 -0.22976 2014 4 13 56760 0.0185 0.4373 -0.23155 2014 4 14 56761 0.0204 0.4386 -0.23336 2014 4 15 56762 0.0223 0.4399 -0.23509 2014 4 16 56763 0.0242 0.4411 -0.23668 2014 4 17 56764 0.0262 0.4423 -0.23819 2014 4 18 56765 0.0282 0.4435 -0.23958 2014 4 19 56766 0.0302 0.4447 -0.24083 2014 4 20 56767 0.0323 0.4458 -0.24214 2014 4 21 56768 0.0343 0.4469 -0.24348 2014 4 22 56769 0.0364 0.4480 -0.24489 2014 4 23 56770 0.0385 0.4490 -0.24638 2014 4 24 56771 0.0407 0.4500 -0.24792 2014 4 25 56772 0.0428 0.4510 -0.24952 2014 4 26 56773 0.0450 0.4520 -0.25108 2014 4 27 56774 0.0472 0.4529 -0.25260 2014 4 28 56775 0.0494 0.4537 -0.25404 2014 4 29 56776 0.0516 0.4546 -0.25531 2014 4 30 56777 0.0539 0.4554 -0.25640 2014 5 1 56778 0.0562 0.4562 -0.25734 2014 5 2 56779 0.0584 0.4569 -0.25815 2014 5 3 56780 0.0607 0.4576 -0.25888 2014 5 4 56781 0.0631 0.4583 -0.25961 2014 5 5 56782 0.0654 0.4589 -0.26037 2014 5 6 56783 0.0677 0.4595 -0.26117 2014 5 7 56784 0.0701 0.4601 -0.26205 2014 5 8 56785 0.0725 0.4606 -0.26305 2014 5 9 56786 0.0749 0.4611 -0.26411 2014 5 10 56787 0.0773 0.4616 -0.26527 2014 5 11 56788 0.0797 0.4620 -0.26653 2014 5 12 56789 0.0821 0.4624 -0.26786 2014 5 13 56790 0.0845 0.4627 -0.26919 2014 5 14 56791 0.0870 0.4630 -0.27048 2014 5 15 56792 0.0894 0.4633 -0.27170 2014 5 16 56793 0.0919 0.4635 -0.27280 2014 5 17 56794 0.0943 0.4637 -0.27385 2014 5 18 56795 0.0968 0.4639 -0.27492 2014 5 19 56796 0.0993 0.4640 -0.27605 2014 5 20 56797 0.1017 0.4641 -0.27728 2014 5 21 56798 0.1042 0.4641 -0.27860 2014 5 22 56799 0.1067 0.4641 -0.28006 2014 5 23 56800 0.1092 0.4641 -0.28159 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) 56416 -74.27 0.11 -13.39 0.06 56417 -74.09 0.11 -13.33 0.06 56418 -73.98 0.11 -13.25 0.04 56419 -74.06 0.12 -13.16 0.03 56420 -74.26 0.12 -13.12 0.03 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 56416 0.115 0.044 -0.178 0.060 56417 0.125 0.044 -0.156 0.060 56418 0.133 0.044 -0.141 0.040 56419 0.139 0.048 -0.119 0.030 56420 0.146 0.048 -0.101 0.030 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).