********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 June 2010 Vol. XXIII 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 = -0.1 seconds beginning 3 June 2010 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 34.000 000 seconds ________________________________________________________________________ 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 10 6 4 55351 -.01929 .00010 0.45642 .00009 -0.053572 0.000010 10 6 5 55352 -.01729 .00009 0.45776 .00009 -0.054316 0.000011 10 6 6 55353 -.01459 .00009 0.45927 .00009 -0.055033 0.000010 10 6 7 55354 -.01197 .00009 0.46106 .00009 -0.055694 0.000011 10 6 8 55355 -.00948 .00009 0.46266 .00009 -0.056246 0.000011 10 6 9 55356 -.00661 .00010 0.46426 .00009 -0.056665 0.000011 10 6 10 55357 -.00376 .00010 0.46609 .00009 -0.056950 0.000013 _______________________________________________________________________ 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 = 0.0872 + 0.0148 cos A + 0.0983 sin A - 0.1016 cos C + 0.0196 sin C y = 0.3551 + 0.0890 cos A - 0.0161 sin A + 0.0196 cos C + 0.1016 sin C UT1-UTC = -0.0299 - 0.00085 (MJD - 55365) - (UT2-UT1) where A = 2*pi*(MJD-55357)/365.25 and C = 2*pi*(MJD-55357)/435. TAI-UTC(MJD 55358) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55357)**0.80 S t = 0.00025 (MJD-55357)**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) 2010 6 11 55358 -0.0012 0.4678 -0.05712 2010 6 12 55359 0.0011 0.4695 -0.05722 2010 6 13 55360 0.0034 0.4711 -0.05730 2010 6 14 55361 0.0055 0.4725 -0.05746 2010 6 15 55362 0.0077 0.4738 -0.05774 2010 6 16 55363 0.0098 0.4750 -0.05819 2010 6 17 55364 0.0120 0.4762 -0.05879 2010 6 18 55365 0.0142 0.4773 -0.05952 2010 6 19 55366 0.0164 0.4784 -0.06025 2010 6 20 55367 0.0186 0.4794 -0.06092 2010 6 21 55368 0.0208 0.4804 -0.06146 2010 6 22 55369 0.0231 0.4814 -0.06179 2010 6 23 55370 0.0253 0.4823 -0.06186 2010 6 24 55371 0.0276 0.4832 -0.06174 2010 6 25 55372 0.0298 0.4840 -0.06149 2010 6 26 55373 0.0321 0.4848 -0.06121 2010 6 27 55374 0.0344 0.4856 -0.06098 2010 6 28 55375 0.0367 0.4864 -0.06085 2010 6 29 55376 0.0389 0.4871 -0.06087 2010 6 30 55377 0.0412 0.4877 -0.06104 2010 7 1 55378 0.0435 0.4884 -0.06133 2010 7 2 55379 0.0459 0.4890 -0.06172 2010 7 3 55380 0.0482 0.4896 -0.06216 2010 7 4 55381 0.0505 0.4901 -0.06259 2010 7 5 55382 0.0528 0.4906 -0.06295 2010 7 6 55383 0.0551 0.4910 -0.06319 2010 7 7 55384 0.0574 0.4915 -0.06330 2010 7 8 55385 0.0598 0.4918 -0.06326 2010 7 9 55386 0.0621 0.4922 -0.06307 2010 7 10 55387 0.0644 0.4925 -0.06281 2010 7 11 55388 0.0667 0.4928 -0.06257 2010 7 12 55389 0.0691 0.4930 -0.06249 2010 7 13 55390 0.0714 0.4932 -0.06264 2010 7 14 55391 0.0737 0.4934 -0.06305 2010 7 15 55392 0.0760 0.4935 -0.06366 2010 7 16 55393 0.0783 0.4936 -0.06433 2010 7 17 55394 0.0806 0.4937 -0.06494 2010 7 18 55395 0.0829 0.4937 -0.06536 2010 7 19 55396 0.0852 0.4937 -0.06555 2010 7 20 55397 0.0875 0.4937 -0.06549 2010 7 21 55398 0.0898 0.4936 -0.06524 2010 7 22 55399 0.0921 0.4935 -0.06485 2010 7 23 55400 0.0944 0.4933 -0.06441 2010 7 24 55401 0.0966 0.4931 -0.06398 2010 7 25 55402 0.0989 0.4929 -0.06362 2010 7 26 55403 0.1011 0.4927 -0.06337 2010 7 27 55404 0.1033 0.4924 -0.06325 2010 7 28 55405 0.1056 0.4920 -0.06325 2010 7 29 55406 0.1078 0.4917 -0.06335 2010 7 30 55407 0.1100 0.4913 -0.06349 2010 7 31 55408 0.1122 0.4909 -0.06363 2010 8 1 55409 0.1143 0.4904 -0.06371 2010 8 2 55410 0.1165 0.4899 -0.06369 2010 8 3 55411 0.1186 0.4894 -0.06356 2010 8 4 55412 0.1208 0.4888 -0.06330 2010 8 5 55413 0.1229 0.4882 -0.06293 2010 8 6 55414 0.1250 0.4876 -0.06251 2010 8 7 55415 0.1271 0.4869 -0.06212 2010 8 8 55416 0.1292 0.4862 -0.06188 2010 8 9 55417 0.1312 0.4855 -0.06188 2010 8 10 55418 0.1332 0.4848 -0.06217 2010 8 11 55419 0.1353 0.4840 -0.06274 2010 8 12 55420 0.1373 0.4832 -0.06348 2010 8 13 55421 0.1392 0.4823 -0.06423 2010 8 14 55422 0.1412 0.4814 -0.06486 2010 8 15 55423 0.1431 0.4805 -0.06526 2010 8 16 55424 0.1451 0.4796 -0.06541 2010 8 17 55425 0.1470 0.4786 -0.06534 2010 8 18 55426 0.1488 0.4776 -0.06513 2010 8 19 55427 0.1507 0.4766 -0.06487 2010 8 20 55428 0.1525 0.4755 -0.06461 2010 8 21 55429 0.1544 0.4745 -0.06444 2010 8 22 55430 0.1561 0.4734 -0.06439 2010 8 23 55431 0.1579 0.4722 -0.06448 2010 8 24 55432 0.1597 0.4711 -0.06473 2010 8 25 55433 0.1614 0.4699 -0.06511 2010 8 26 55434 0.1631 0.4686 -0.06557 2010 8 27 55435 0.1647 0.4674 -0.06607 2010 8 28 55436 0.1664 0.4661 -0.06655 2010 8 29 55437 0.1680 0.4649 -0.06697 2010 8 30 55438 0.1696 0.4635 -0.06730 2010 8 31 55439 0.1712 0.4622 -0.06752 2010 9 1 55440 0.1727 0.4608 -0.06764 2010 9 2 55441 0.1742 0.4594 -0.06770 2010 9 3 55442 0.1757 0.4580 -0.06777 2010 9 4 55443 0.1772 0.4566 -0.06794 2010 9 5 55444 0.1786 0.4551 -0.06832 2010 9 6 55445 0.1800 0.4537 -0.06897 2010 9 7 55446 0.1814 0.4522 -0.06992 2010 9 8 55447 0.1828 0.4507 -0.07112 2010 9 9 55448 0.1841 0.4491 -0.07242 2010 9 10 55449 0.1854 0.4476 -0.07367 2010 9 11 55450 0.1866 0.4460 -0.07473 2010 9 12 55451 0.1879 0.4444 -0.07553 2010 9 13 55452 0.1891 0.4428 -0.07607 2010 9 14 55453 0.1902 0.4412 -0.07642 2010 9 15 55454 0.1914 0.4395 -0.07667 2010 9 16 55455 0.1925 0.4378 -0.07692 2010 9 17 55456 0.1936 0.4362 -0.07723 2010 9 18 55457 0.1946 0.4345 -0.07766 2010 9 19 55458 0.1957 0.4327 -0.07823 2010 9 20 55459 0.1966 0.4310 -0.07893 2010 9 21 55460 0.1976 0.4293 -0.07976 2010 9 22 55461 0.1985 0.4275 -0.08068 2010 9 23 55462 0.1994 0.4257 -0.08164 2010 9 24 55463 0.2003 0.4240 -0.08259 2010 9 25 55464 0.2011 0.4222 -0.08349 2010 9 26 55465 0.2019 0.4204 -0.08429 2010 9 27 55466 0.2027 0.4185 -0.08499 2010 9 28 55467 0.2034 0.4167 -0.08559 2010 9 29 55468 0.2041 0.4149 -0.08611 2010 9 30 55469 0.2048 0.4130 -0.08662 2010 10 1 55470 0.2054 0.4112 -0.08719 2010 10 2 55471 0.2060 0.4093 -0.08791 2010 10 3 55472 0.2066 0.4074 -0.08886 2010 10 4 55473 0.2071 0.4055 -0.09009 2010 10 5 55474 0.2076 0.4036 -0.09158 2010 10 6 55475 0.2081 0.4017 -0.09325 2010 10 7 55476 0.2086 0.3998 -0.09495 2010 10 8 55477 0.2090 0.3979 -0.09654 2010 10 9 55478 0.2093 0.3960 -0.09790 2010 10 10 55479 0.2097 0.3941 -0.09900 2010 10 11 55480 0.2100 0.3922 -0.09987 2010 10 12 55481 0.2103 0.3902 -0.10058 2010 10 13 55482 0.2105 0.3883 -0.10123 2010 10 14 55483 0.2107 0.3864 -0.10190 2010 10 15 55484 0.2109 0.3844 -0.10266 2010 10 16 55485 0.2111 0.3825 -0.10353 2010 10 17 55486 0.2112 0.3806 -0.10452 2010 10 18 55487 0.2113 0.3786 -0.10562 2010 10 19 55488 0.2113 0.3767 -0.10681 2010 10 20 55489 0.2113 0.3747 -0.10805 2010 10 21 55490 0.2113 0.3728 -0.10927 2010 10 22 55491 0.2113 0.3709 -0.11045 2010 10 23 55492 0.2112 0.3689 -0.11153 2010 10 24 55493 0.2111 0.3670 -0.11249 2010 10 25 55494 0.2110 0.3651 -0.11332 2010 10 26 55495 0.2108 0.3631 -0.11406 2010 10 27 55496 0.2106 0.3612 -0.11474 2010 10 28 55497 0.2104 0.3593 -0.11545 2010 10 29 55498 0.2101 0.3574 -0.11626 2010 10 30 55499 0.2098 0.3555 -0.11726 2010 10 31 55500 0.2095 0.3536 -0.11848 2010 11 1 55501 0.2091 0.3517 -0.11994 2010 11 2 55502 0.2087 0.3498 -0.12156 2010 11 3 55503 0.2083 0.3479 -0.12327 2010 11 4 55504 0.2079 0.3460 -0.12492 2010 11 5 55505 0.2074 0.3442 -0.12640 2010 11 6 55506 0.2069 0.3423 -0.12764 2010 11 7 55507 0.2064 0.3405 -0.12864 2010 11 8 55508 0.2058 0.3386 -0.12945 2010 11 9 55509 0.2052 0.3368 -0.13016 2010 11 10 55510 0.2046 0.3350 -0.13085 2010 11 11 55511 0.2040 0.3332 -0.13160 2010 11 12 55512 0.2033 0.3314 -0.13245 2010 11 13 55513 0.2026 0.3296 -0.13340 2010 11 14 55514 0.2019 0.3278 -0.13446 2010 11 15 55515 0.2011 0.3261 -0.13560 2010 11 16 55516 0.2003 0.3243 -0.13678 2010 11 17 55517 0.1995 0.3226 -0.13796 2010 11 18 55518 0.1987 0.3209 -0.13909 2010 11 19 55519 0.1978 0.3192 -0.14013 2010 11 20 55520 0.1969 0.3175 -0.14104 2010 11 21 55521 0.1960 0.3158 -0.14183 2010 11 22 55522 0.1951 0.3142 -0.14251 2010 11 23 55523 0.1941 0.3125 -0.14312 2010 11 24 55524 0.1932 0.3109 -0.14372 2010 11 25 55525 0.1922 0.3093 -0.14440 2010 11 26 55526 0.1911 0.3077 -0.14524 2010 11 27 55527 0.1901 0.3061 -0.14628 2010 11 28 55528 0.1890 0.3046 -0.14753 2010 11 29 55529 0.1879 0.3030 -0.14894 2010 11 30 55530 0.1868 0.3015 -0.15042 2010 12 1 55531 0.1857 0.3000 -0.15186 2010 12 2 55532 0.1845 0.2985 -0.15318 2010 12 3 55533 0.1833 0.2970 -0.15429 2010 12 4 55534 0.1821 0.2956 -0.15518 2010 12 5 55535 0.1809 0.2942 -0.15588 2010 12 6 55536 0.1797 0.2928 -0.15645 2010 12 7 55537 0.1784 0.2914 -0.15699 2010 12 8 55538 0.1771 0.2900 -0.15758 2010 12 9 55539 0.1758 0.2887 -0.15828 2010 12 10 55540 0.1745 0.2873 -0.15910 2010 12 11 55541 0.1732 0.2860 -0.16005 2010 12 12 55542 0.1719 0.2848 -0.16112 2010 12 13 55543 0.1705 0.2835 -0.16226 2010 12 14 55544 0.1691 0.2823 -0.16344 2010 12 15 55545 0.1677 0.2811 -0.16461 2010 12 16 55546 0.1663 0.2799 -0.16573 2010 12 17 55547 0.1649 0.2787 -0.16676 2010 12 18 55548 0.1634 0.2776 -0.16766 2010 12 19 55549 0.1620 0.2764 -0.16843 2010 12 20 55550 0.1605 0.2754 -0.16909 2010 12 21 55551 0.1591 0.2743 -0.16970 2010 12 22 55552 0.1576 0.2732 -0.17035 2010 12 23 55553 0.1561 0.2722 -0.17113 2010 12 24 55554 0.1545 0.2712 -0.17210 2010 12 25 55555 0.1530 0.2702 -0.17329 2010 12 26 55556 0.1515 0.2693 -0.17465 2010 12 27 55557 0.1499 0.2684 -0.17608 2010 12 28 55558 0.1484 0.2675 -0.17748 2010 12 29 55559 0.1468 0.2666 -0.17872 2010 12 30 55560 0.1453 0.2657 -0.17972 2010 12 31 55561 0.1437 0.2649 -0.18047 2011 1 1 55562 0.1421 0.2641 -0.18098 2011 1 2 55563 0.1405 0.2633 -0.18134 2011 1 3 55564 0.1389 0.2626 -0.18163 2011 1 4 55565 0.1373 0.2619 -0.18194 2011 1 5 55566 0.1357 0.2612 -0.18235 2011 1 6 55567 0.1340 0.2605 -0.18288 2011 1 7 55568 0.1324 0.2599 -0.18355 2011 1 8 55569 0.1308 0.2593 -0.18433 2011 1 9 55570 0.1291 0.2587 -0.18516 2011 1 10 55571 0.1275 0.2581 -0.18601 2011 1 11 55572 0.1259 0.2576 -0.18682 2011 1 12 55573 0.1242 0.2570 -0.18753 2011 1 13 55574 0.1226 0.2566 -0.18811 2011 1 14 55575 0.1209 0.2561 -0.18850 2011 1 15 55576 0.1193 0.2557 -0.18875 2011 1 16 55577 0.1176 0.2553 -0.18890 2011 1 17 55578 0.1159 0.2549 -0.18900 2011 1 18 55579 0.1143 0.2545 -0.18911 2011 1 19 55580 0.1126 0.2542 -0.18933 2011 1 20 55581 0.1110 0.2539 -0.18973 2011 1 21 55582 0.1093 0.2536 -0.19038 2011 1 22 55583 0.1077 0.2534 -0.19130 2011 1 23 55584 0.1060 0.2532 -0.19233 2011 1 24 55585 0.1044 0.2530 -0.19335 2011 1 25 55586 0.1028 0.2528 -0.19422 2011 1 26 55587 0.1011 0.2527 -0.19497 2011 1 27 55588 0.0995 0.2525 -0.19557 2011 1 28 55589 0.0979 0.2524 -0.19602 2011 1 29 55590 0.0962 0.2524 -0.19635 2011 1 30 55591 0.0946 0.2523 -0.19659 2011 1 31 55592 0.0930 0.2523 -0.19681 2011 2 1 55593 0.0914 0.2523 -0.19709 2011 2 2 55594 0.0898 0.2524 -0.19746 2011 2 3 55595 0.0882 0.2524 -0.19800 2011 2 4 55596 0.0866 0.2525 -0.19865 2011 2 5 55597 0.0850 0.2526 -0.19940 2011 2 6 55598 0.0835 0.2528 -0.20024 2011 2 7 55599 0.0819 0.2529 -0.20109 2011 2 8 55600 0.0803 0.2531 -0.20188 2011 2 9 55601 0.0788 0.2533 -0.20258 2011 2 10 55602 0.0772 0.2536 -0.20318 2011 2 11 55603 0.0757 0.2538 -0.20370 2011 2 12 55604 0.0742 0.2541 -0.20420 2011 2 13 55605 0.0727 0.2544 -0.20464 2011 2 14 55606 0.0712 0.2547 -0.20506 2011 2 15 55607 0.0697 0.2551 -0.20555 2011 2 16 55608 0.0683 0.2555 -0.20624 2011 2 17 55609 0.0668 0.2559 -0.20718 2011 2 18 55610 0.0653 0.2563 -0.20840 2011 2 19 55611 0.0639 0.2567 -0.20980 2011 2 20 55612 0.0625 0.2572 -0.21126 2011 2 21 55613 0.0611 0.2577 -0.21266 2011 2 22 55614 0.0597 0.2582 -0.21388 2011 2 23 55615 0.0583 0.2588 -0.21488 2011 2 24 55616 0.0569 0.2593 -0.21573 2011 2 25 55617 0.0556 0.2599 -0.21644 2011 2 26 55618 0.0543 0.2605 -0.21707 2011 2 27 55619 0.0529 0.2611 -0.21770 2011 2 28 55620 0.0516 0.2617 -0.21840 2011 3 1 55621 0.0503 0.2624 -0.21919 2011 3 2 55622 0.0491 0.2631 -0.22017 2011 3 3 55623 0.0478 0.2638 -0.22128 2011 3 4 55624 0.0466 0.2645 -0.22248 2011 3 5 55625 0.0453 0.2652 -0.22378 2011 3 6 55626 0.0441 0.2660 -0.22510 2011 3 7 55627 0.0429 0.2667 -0.22633 2011 3 8 55628 0.0418 0.2675 -0.22738 2011 3 9 55629 0.0406 0.2683 -0.22827 2011 3 10 55630 0.0395 0.2692 -0.22910 2011 3 11 55631 0.0384 0.2700 -0.22988 2011 3 12 55632 0.0373 0.2709 -0.23060 2011 3 13 55633 0.0362 0.2718 -0.23129 2011 3 14 55634 0.0351 0.2727 -0.23203 2011 3 15 55635 0.0341 0.2736 -0.23294 2011 3 16 55636 0.0331 0.2745 -0.23413 2011 3 17 55637 0.0321 0.2754 -0.23558 2011 3 18 55638 0.0311 0.2764 -0.23727 2011 3 19 55639 0.0301 0.2774 -0.23916 2011 3 20 55640 0.0292 0.2783 -0.24107 2011 3 21 55641 0.0283 0.2793 -0.24286 2011 3 22 55642 0.0274 0.2804 -0.24445 2011 3 23 55643 0.0265 0.2814 -0.24582 2011 3 24 55644 0.0256 0.2824 -0.24696 2011 3 25 55645 0.0248 0.2835 -0.24793 2011 3 26 55646 0.0240 0.2845 -0.24886 2011 3 27 55647 0.0232 0.2856 -0.24982 2011 3 28 55648 0.0224 0.2867 -0.25091 2011 3 29 55649 0.0216 0.2878 -0.25212 2011 3 30 55650 0.0209 0.2889 -0.25345 2011 3 31 55651 0.0202 0.2900 -0.25488 2011 4 1 55652 0.0195 0.2912 -0.25637 2011 4 2 55653 0.0188 0.2923 -0.25786 2011 4 3 55654 0.0182 0.2935 -0.25932 2011 4 4 55655 0.0175 0.2946 -0.26072 2011 4 5 55656 0.0169 0.2958 -0.26202 2011 4 6 55657 0.0164 0.2970 -0.26325 2011 4 7 55658 0.0158 0.2981 -0.26440 2011 4 8 55659 0.0153 0.2993 -0.26547 2011 4 9 55660 0.0147 0.3005 -0.26648 2011 4 10 55661 0.0142 0.3017 -0.26747 2011 4 11 55662 0.0138 0.3030 -0.26853 2011 4 12 55663 0.0133 0.3042 -0.26974 2011 4 13 55664 0.0129 0.3054 -0.27114 2011 4 14 55665 0.0125 0.3066 -0.27277 2011 4 15 55666 0.0121 0.3079 -0.27461 2011 4 16 55667 0.0117 0.3091 -0.27654 2011 4 17 55668 0.0114 0.3104 -0.27843 2011 4 18 55669 0.0111 0.3116 -0.28018 2011 4 19 55670 0.0108 0.3129 -0.28166 2011 4 20 55671 0.0105 0.3141 -0.28290 2011 4 21 55672 0.0103 0.3154 -0.28399 2011 4 22 55673 0.0100 0.3166 -0.28498 2011 4 23 55674 0.0098 0.3179 -0.28600 2011 4 24 55675 0.0096 0.3192 -0.28712 2011 4 25 55676 0.0095 0.3205 -0.28835 2011 4 26 55677 0.0093 0.3217 -0.28968 2011 4 27 55678 0.0092 0.3230 -0.29108 2011 4 28 55679 0.0091 0.3243 -0.29249 2011 4 29 55680 0.0090 0.3255 -0.29390 2011 4 30 55681 0.0089 0.3268 -0.29529 2011 5 1 55682 0.0089 0.3281 -0.29655 2011 5 2 55683 0.0089 0.3294 -0.29770 2011 5 3 55684 0.0089 0.3306 -0.29876 2011 5 4 55685 0.0089 0.3319 -0.29969 2011 5 5 55686 0.0090 0.3332 -0.30047 2011 5 6 55687 0.0090 0.3344 -0.30121 2011 5 7 55688 0.0091 0.3357 -0.30198 2011 5 8 55689 0.0092 0.3370 -0.30283 2011 5 9 55690 0.0093 0.3382 -0.30381 2011 5 10 55691 0.0095 0.3395 -0.30498 2011 5 11 55692 0.0097 0.3407 -0.30628 2011 5 12 55693 0.0098 0.3420 -0.30769 2011 5 13 55694 0.0100 0.3432 -0.30918 2011 5 14 55695 0.0103 0.3444 -0.31064 2011 5 15 55696 0.0105 0.3457 -0.31200 2011 5 16 55697 0.0108 0.3469 -0.31322 2011 5 17 55698 0.0110 0.3481 -0.31425 2011 5 18 55699 0.0113 0.3493 -0.31508 2011 5 19 55700 0.0117 0.3506 -0.31572 2011 5 20 55701 0.0120 0.3518 -0.31625 2011 5 21 55702 0.0123 0.3530 -0.31676 2011 5 22 55703 0.0127 0.3541 -0.31732 2011 5 23 55704 0.0131 0.3553 -0.31795 2011 5 24 55705 0.0135 0.3565 -0.31862 2011 5 25 55706 0.0139 0.3577 -0.31936 2011 5 26 55707 0.0144 0.3588 -0.32012 2011 5 27 55708 0.0148 0.3600 -0.32082 2011 5 28 55709 0.0153 0.3611 -0.32147 2011 5 29 55710 0.0158 0.3623 -0.32204 2011 5 30 55711 0.0163 0.3634 -0.32245 2011 5 31 55712 0.0168 0.3645 -0.32276 2011 6 1 55713 0.0173 0.3656 -0.32296 2011 6 2 55714 0.0179 0.3667 -0.32309 2011 6 3 55715 0.0184 0.3678 -0.32320 2011 6 4 55716 0.0190 0.3688 -0.32331 2011 6 5 55717 0.0196 0.3699 -0.32351 2011 6 6 55718 0.0202 0.3710 -0.32388 2011 6 7 55719 0.0208 0.3720 -0.32444 2011 6 8 55720 0.0215 0.3730 -0.32516 2011 6 9 55721 0.0221 0.3741 -0.32597 2011 6 10 55722 0.0228 0.3751 -0.32680 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) 55338 -63.32 0.22 -10.50 0.34 55339 -63.40 0.22 -10.37 0.34 55340 -63.54 0.25 -10.18 0.34 55341 -63.77 0.27 -10.02 0.34 55342 -63.99 0.24 -10.04 0.34 55343 -64.01 0.24 -10.22 0.34 55344 -63.78 0.24 -10.40 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55338 -0.371 0.088 -0.114 0.340 55339 -0.397 0.088 -0.131 0.340 55340 -0.411 0.099 -0.148 0.340 55341 -0.417 0.107 -0.130 0.340 55342 -0.416 0.095 -0.120 0.340 55343 -0.391 0.095 -0.111 0.340 55344 -0.344 0.095 -0.089 0.340 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.