********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 June 2010 Vol. XXIII No. 022 ______________________________________________________________________ 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 5 28 55344 -.03042 .00009 0.44534 .00009 -0.049795 0.000012 10 5 29 55345 -.02899 .00010 0.44670 .00009 -0.050342 0.000012 10 5 30 55346 -.02742 .00010 0.44815 .00009 -0.050751 0.000011 10 5 31 55347 -.02592 .00009 0.44997 .00009 -0.051125 0.000011 10 6 1 55348 -.02415 .00009 0.45188 .00009 -0.051585 0.000011 10 6 2 55349 -.02239 .00009 0.45355 .00009 -0.052163 0.000010 10 6 3 55350 -.02086 .00009 0.45509 .00009 -0.052846 0.000012 IERS Final Values MJD x y UT1-UTC " " s 10 4 2 55288 -0.0616 0.3221 0.01455 10 4 3 55289 -0.0622 0.3247 0.01364 10 4 4 55290 -0.0629 0.3273 0.01285 10 4 5 55291 -0.0642 0.3296 0.01207 10 4 6 55292 -0.0658 0.3314 0.01122 10 4 7 55293 -0.0671 0.3330 0.01024 10 4 8 55294 -0.0678 0.3350 0.00912 10 4 9 55295 -0.0682 0.3373 0.00787 10 4 10 55296 -0.0685 0.3397 0.00650 10 4 11 55297 -0.0683 0.3423 0.00505 10 4 12 55298 -0.0681 0.3451 0.00353 10 4 13 55299 -0.0681 0.3481 0.00195 10 4 14 55300 -0.0684 0.3508 0.00039 10 4 15 55301 -0.0689 0.3532 -0.00111 10 4 16 55302 -0.0689 0.3553 -0.00248 10 4 17 55303 -0.0690 0.3575 -0.00369 10 4 18 55304 -0.0692 0.3598 -0.00478 10 4 19 55305 -0.0690 0.3621 -0.00581 10 4 20 55306 -0.0689 0.3647 -0.00685 10 4 21 55307 -0.0689 0.3671 -0.00801 10 4 22 55308 -0.0693 0.3694 -0.00938 10 4 23 55309 -0.0700 0.3719 -0.01098 10 4 24 55310 -0.0703 0.3741 -0.01275 10 4 25 55311 -0.0707 0.3764 -0.01462 10 4 26 55312 -0.0711 0.3786 -0.01649 10 4 27 55313 -0.0708 0.3810 -0.01830 10 4 28 55314 -0.0708 0.3836 -0.01994 10 4 29 55315 -0.0711 0.3856 -0.02129 10 4 30 55316 -0.0711 0.3876 -0.02235 10 5 1 55317 -0.0709 0.3896 -0.02317 _______________________________________________________________________ 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 = 0.0828 + 0.0038 cos A + 0.1025 sin A - 0.1024 cos C + 0.0063 sin C y = 0.3541 + 0.0927 cos A - 0.0061 sin A + 0.0063 cos C + 0.1024 sin C UT1-UTC = -0.0248 - 0.00085 (MJD - 55358) - (UT2-UT1) where A = 2*pi*(MJD-55350)/365.25 and C = 2*pi*(MJD-55350)/435. TAI-UTC(MJD 55351) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55350)**0.80 S t = 0.00025 (MJD-55350)**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 4 55351 -0.0190 0.4566 -0.05362 2010 6 5 55352 -0.0173 0.4580 -0.05442 2010 6 6 55353 -0.0155 0.4593 -0.05520 2010 6 7 55354 -0.0136 0.4608 -0.05592 2010 6 8 55355 -0.0116 0.4622 -0.05653 2010 6 9 55356 -0.0096 0.4636 -0.05700 2010 6 10 55357 -0.0076 0.4650 -0.05732 2010 6 11 55358 -0.0056 0.4664 -0.05750 2010 6 12 55359 -0.0035 0.4677 -0.05756 2010 6 13 55360 -0.0015 0.4691 -0.05760 2010 6 14 55361 0.0006 0.4704 -0.05774 2010 6 15 55362 0.0027 0.4716 -0.05809 2010 6 16 55363 0.0048 0.4729 -0.05868 2010 6 17 55364 0.0070 0.4741 -0.05949 2010 6 18 55365 0.0091 0.4752 -0.06045 2010 6 19 55366 0.0113 0.4764 -0.06146 2010 6 20 55367 0.0134 0.4775 -0.06239 2010 6 21 55368 0.0156 0.4785 -0.06315 2010 6 22 55369 0.0178 0.4795 -0.06369 2010 6 23 55370 0.0200 0.4805 -0.06400 2010 6 24 55371 0.0222 0.4815 -0.06410 2010 6 25 55372 0.0245 0.4824 -0.06405 2010 6 26 55373 0.0267 0.4833 -0.06394 2010 6 27 55374 0.0290 0.4842 -0.06384 2010 6 28 55375 0.0312 0.4850 -0.06379 2010 6 29 55376 0.0335 0.4858 -0.06380 2010 6 30 55377 0.0357 0.4865 -0.06389 2010 7 1 55378 0.0380 0.4872 -0.06405 2010 7 2 55379 0.0403 0.4879 -0.06428 2010 7 3 55380 0.0426 0.4886 -0.06455 2010 7 4 55381 0.0449 0.4892 -0.06481 2010 7 5 55382 0.0472 0.4897 -0.06500 2010 7 6 55383 0.0495 0.4903 -0.06510 2010 7 7 55384 0.0518 0.4908 -0.06506 2010 7 8 55385 0.0541 0.4912 -0.06490 2010 7 9 55386 0.0564 0.4917 -0.06463 2010 7 10 55387 0.0587 0.4920 -0.06433 2010 7 11 55388 0.0610 0.4924 -0.06409 2010 7 12 55389 0.0633 0.4927 -0.06401 2010 7 13 55390 0.0656 0.4930 -0.06416 2010 7 14 55391 0.0680 0.4932 -0.06457 2010 7 15 55392 0.0703 0.4934 -0.06515 2010 7 16 55393 0.0726 0.4936 -0.06579 2010 7 17 55394 0.0749 0.4938 -0.06635 2010 7 18 55395 0.0772 0.4939 -0.06673 2010 7 19 55396 0.0795 0.4939 -0.06685 2010 7 20 55397 0.0817 0.4940 -0.06672 2010 7 21 55398 0.0840 0.4940 -0.06636 2010 7 22 55399 0.0863 0.4939 -0.06586 2010 7 23 55400 0.0886 0.4938 -0.06529 2010 7 24 55401 0.0908 0.4937 -0.06472 2010 7 25 55402 0.0931 0.4936 -0.06423 2010 7 26 55403 0.0953 0.4934 -0.06385 2010 7 27 55404 0.0976 0.4932 -0.06360 2010 7 28 55405 0.0998 0.4929 -0.06348 2010 7 29 55406 0.1020 0.4927 -0.06347 2010 7 30 55407 0.1042 0.4923 -0.06352 2010 7 31 55408 0.1064 0.4920 -0.06358 2010 8 1 55409 0.1086 0.4916 -0.06361 2010 8 2 55410 0.1108 0.4912 -0.06357 2010 8 3 55411 0.1129 0.4907 -0.06343 2010 8 4 55412 0.1151 0.4902 -0.06319 2010 8 5 55413 0.1172 0.4897 -0.06285 2010 8 6 55414 0.1193 0.4892 -0.06248 2010 8 7 55415 0.1214 0.4886 -0.06215 2010 8 8 55416 0.1235 0.4879 -0.06197 2010 8 9 55417 0.1256 0.4873 -0.06204 2010 8 10 55418 0.1277 0.4866 -0.06240 2010 8 11 55419 0.1297 0.4859 -0.06303 2010 8 12 55420 0.1317 0.4852 -0.06382 2010 8 13 55421 0.1337 0.4844 -0.06463 2010 8 14 55422 0.1357 0.4836 -0.06531 2010 8 15 55423 0.1377 0.4827 -0.06577 2010 8 16 55424 0.1396 0.4819 -0.06597 2010 8 17 55425 0.1416 0.4810 -0.06595 2010 8 18 55426 0.1435 0.4800 -0.06577 2010 8 19 55427 0.1454 0.4791 -0.06553 2010 8 20 55428 0.1472 0.4781 -0.06531 2010 8 21 55429 0.1491 0.4771 -0.06516 2010 8 22 55430 0.1509 0.4760 -0.06513 2010 8 23 55431 0.1527 0.4750 -0.06524 2010 8 24 55432 0.1545 0.4739 -0.06549 2010 8 25 55433 0.1562 0.4727 -0.06586 2010 8 26 55434 0.1580 0.4716 -0.06631 2010 8 27 55435 0.1597 0.4704 -0.06679 2010 8 28 55436 0.1614 0.4692 -0.06725 2010 8 29 55437 0.1630 0.4680 -0.06765 2010 8 30 55438 0.1647 0.4667 -0.06795 2010 8 31 55439 0.1663 0.4655 -0.06813 2010 9 1 55440 0.1679 0.4641 -0.06822 2010 9 2 55441 0.1694 0.4628 -0.06825 2010 9 3 55442 0.1710 0.4615 -0.06829 2010 9 4 55443 0.1725 0.4601 -0.06844 2010 9 5 55444 0.1740 0.4587 -0.06880 2010 9 6 55445 0.1754 0.4573 -0.06945 2010 9 7 55446 0.1768 0.4558 -0.07040 2010 9 8 55447 0.1782 0.4544 -0.07160 2010 9 9 55448 0.1796 0.4529 -0.07291 2010 9 10 55449 0.1809 0.4514 -0.07417 2010 9 11 55450 0.1823 0.4499 -0.07525 2010 9 12 55451 0.1835 0.4483 -0.07606 2010 9 13 55452 0.1848 0.4468 -0.07661 2010 9 14 55453 0.1860 0.4452 -0.07696 2010 9 15 55454 0.1872 0.4436 -0.07721 2010 9 16 55455 0.1884 0.4420 -0.07745 2010 9 17 55456 0.1896 0.4403 -0.07775 2010 9 18 55457 0.1907 0.4387 -0.07816 2010 9 19 55458 0.1917 0.4370 -0.07871 2010 9 20 55459 0.1928 0.4353 -0.07940 2010 9 21 55460 0.1938 0.4336 -0.08023 2010 9 22 55461 0.1948 0.4319 -0.08114 2010 9 23 55462 0.1958 0.4302 -0.08210 2010 9 24 55463 0.1967 0.4285 -0.08305 2010 9 25 55464 0.1976 0.4267 -0.08394 2010 9 26 55465 0.1985 0.4249 -0.08474 2010 9 27 55466 0.1993 0.4232 -0.08543 2010 9 28 55467 0.2001 0.4214 -0.08600 2010 9 29 55468 0.2009 0.4196 -0.08651 2010 9 30 55469 0.2016 0.4178 -0.08699 2010 10 1 55470 0.2023 0.4159 -0.08753 2010 10 2 55471 0.2030 0.4141 -0.08823 2010 10 3 55472 0.2036 0.4123 -0.08915 2010 10 4 55473 0.2042 0.4104 -0.09035 2010 10 5 55474 0.2048 0.4085 -0.09180 2010 10 6 55475 0.2054 0.4067 -0.09343 2010 10 7 55476 0.2059 0.4048 -0.09509 2010 10 8 55477 0.2064 0.4029 -0.09664 2010 10 9 55478 0.2068 0.4010 -0.09797 2010 10 10 55479 0.2072 0.3991 -0.09903 2010 10 11 55480 0.2076 0.3972 -0.09985 2010 10 12 55481 0.2080 0.3953 -0.10052 2010 10 13 55482 0.2083 0.3934 -0.10113 2010 10 14 55483 0.2086 0.3915 -0.10176 2010 10 15 55484 0.2088 0.3896 -0.10248 2010 10 16 55485 0.2091 0.3877 -0.10331 2010 10 17 55486 0.2093 0.3858 -0.10426 2010 10 18 55487 0.2094 0.3838 -0.10533 2010 10 19 55488 0.2095 0.3819 -0.10648 2010 10 20 55489 0.2096 0.3800 -0.10768 2010 10 21 55490 0.2097 0.3781 -0.10888 2010 10 22 55491 0.2097 0.3762 -0.11002 2010 10 23 55492 0.2097 0.3742 -0.11108 2010 10 24 55493 0.2097 0.3723 -0.11201 2010 10 25 55494 0.2096 0.3704 -0.11282 2010 10 26 55495 0.2096 0.3685 -0.11354 2010 10 27 55496 0.2094 0.3666 -0.11421 2010 10 28 55497 0.2093 0.3647 -0.11490 2010 10 29 55498 0.2091 0.3628 -0.11571 2010 10 30 55499 0.2089 0.3609 -0.11669 2010 10 31 55500 0.2086 0.3590 -0.11791 2010 11 1 55501 0.2084 0.3571 -0.11935 2010 11 2 55502 0.2081 0.3552 -0.12097 2010 11 3 55503 0.2077 0.3533 -0.12266 2010 11 4 55504 0.2074 0.3514 -0.12430 2010 11 5 55505 0.2070 0.3496 -0.12578 2010 11 6 55506 0.2065 0.3477 -0.12701 2010 11 7 55507 0.2061 0.3459 -0.12800 2010 11 8 55508 0.2056 0.3440 -0.12880 2010 11 9 55509 0.2051 0.3422 -0.12950 2010 11 10 55510 0.2045 0.3404 -0.13018 2010 11 11 55511 0.2040 0.3385 -0.13092 2010 11 12 55512 0.2034 0.3367 -0.13175 2010 11 13 55513 0.2028 0.3349 -0.13270 2010 11 14 55514 0.2021 0.3332 -0.13375 2010 11 15 55515 0.2014 0.3314 -0.13487 2010 11 16 55516 0.2007 0.3296 -0.13604 2010 11 17 55517 0.2000 0.3279 -0.13721 2010 11 18 55518 0.1993 0.3262 -0.13833 2010 11 19 55519 0.1985 0.3244 -0.13936 2010 11 20 55520 0.1977 0.3227 -0.14028 2010 11 21 55521 0.1968 0.3210 -0.14106 2010 11 22 55522 0.1960 0.3194 -0.14174 2010 11 23 55523 0.1951 0.3177 -0.14234 2010 11 24 55524 0.1942 0.3160 -0.14295 2010 11 25 55525 0.1933 0.3144 -0.14364 2010 11 26 55526 0.1923 0.3128 -0.14449 2010 11 27 55527 0.1913 0.3112 -0.14555 2010 11 28 55528 0.1903 0.3096 -0.14683 2010 11 29 55529 0.1893 0.3080 -0.14827 2010 11 30 55530 0.1883 0.3065 -0.14980 2010 12 1 55531 0.1872 0.3050 -0.15130 2010 12 2 55532 0.1861 0.3035 -0.15269 2010 12 3 55533 0.1850 0.3020 -0.15389 2010 12 4 55534 0.1839 0.3005 -0.15489 2010 12 5 55535 0.1827 0.2990 -0.15571 2010 12 6 55536 0.1816 0.2976 -0.15643 2010 12 7 55537 0.1804 0.2962 -0.15714 2010 12 8 55538 0.1792 0.2948 -0.15790 2010 12 9 55539 0.1779 0.2934 -0.15878 2010 12 10 55540 0.1767 0.2920 -0.15977 2010 12 11 55541 0.1754 0.2907 -0.16086 2010 12 12 55542 0.1742 0.2894 -0.16203 2010 12 13 55543 0.1729 0.2881 -0.16322 2010 12 14 55544 0.1715 0.2868 -0.16440 2010 12 15 55545 0.1702 0.2855 -0.16552 2010 12 16 55546 0.1689 0.2843 -0.16655 2010 12 17 55547 0.1675 0.2831 -0.16746 2010 12 18 55548 0.1661 0.2819 -0.16824 2010 12 19 55549 0.1647 0.2807 -0.16889 2010 12 20 55550 0.1633 0.2796 -0.16943 2010 12 21 55551 0.1619 0.2785 -0.16991 2010 12 22 55552 0.1605 0.2774 -0.17043 2010 12 23 55553 0.1590 0.2763 -0.17107 2010 12 24 55554 0.1576 0.2753 -0.17189 2010 12 25 55555 0.1561 0.2743 -0.17292 2010 12 26 55556 0.1546 0.2733 -0.17412 2010 12 27 55557 0.1532 0.2723 -0.17540 2010 12 28 55558 0.1517 0.2713 -0.17664 2010 12 29 55559 0.1501 0.2704 -0.17773 2010 12 30 55560 0.1486 0.2695 -0.17859 2010 12 31 55561 0.1471 0.2686 -0.17919 2011 1 1 55562 0.1456 0.2678 -0.17954 2011 1 2 55563 0.1440 0.2669 -0.17972 2011 1 3 55564 0.1425 0.2661 -0.17981 2011 1 4 55565 0.1409 0.2654 -0.17989 2011 1 5 55566 0.1393 0.2646 -0.18002 2011 1 6 55567 0.1377 0.2639 -0.18024 2011 1 7 55568 0.1362 0.2632 -0.18058 2011 1 8 55569 0.1346 0.2625 -0.18102 2011 1 9 55570 0.1330 0.2618 -0.18153 2011 1 10 55571 0.1314 0.2612 -0.18203 2011 1 11 55572 0.1298 0.2606 -0.18251 2011 1 12 55573 0.1282 0.2600 -0.18298 2011 1 13 55574 0.1266 0.2595 -0.18343 2011 1 14 55575 0.1250 0.2590 -0.18384 2011 1 15 55576 0.1234 0.2585 -0.18418 2011 1 16 55577 0.1217 0.2580 -0.18441 2011 1 17 55578 0.1201 0.2576 -0.18458 2011 1 18 55579 0.1185 0.2571 -0.18477 2011 1 19 55580 0.1169 0.2568 -0.18508 2011 1 20 55581 0.1153 0.2564 -0.18564 2011 1 21 55582 0.1136 0.2560 -0.18645 2011 1 22 55583 0.1120 0.2557 -0.18750 2011 1 23 55584 0.1104 0.2554 -0.18871 2011 1 24 55585 0.1088 0.2552 -0.18996 2011 1 25 55586 0.1072 0.2549 -0.19108 2011 1 26 55587 0.1056 0.2547 -0.19198 2011 1 27 55588 0.1040 0.2545 -0.19263 2011 1 28 55589 0.1024 0.2544 -0.19312 2011 1 29 55590 0.1008 0.2543 -0.19351 2011 1 30 55591 0.0992 0.2541 -0.19382 2011 1 31 55592 0.0976 0.2541 -0.19410 2011 2 1 55593 0.0960 0.2540 -0.19443 2011 2 2 55594 0.0944 0.2540 -0.19487 2011 2 3 55595 0.0928 0.2540 -0.19543 2011 2 4 55596 0.0912 0.2540 -0.19612 2011 2 5 55597 0.0897 0.2540 -0.19685 2011 2 6 55598 0.0881 0.2541 -0.19761 2011 2 7 55599 0.0866 0.2542 -0.19836 2011 2 8 55600 0.0850 0.2543 -0.19906 2011 2 9 55601 0.0835 0.2544 -0.19971 2011 2 10 55602 0.0820 0.2546 -0.20035 2011 2 11 55603 0.0805 0.2548 -0.20094 2011 2 12 55604 0.0789 0.2550 -0.20146 2011 2 13 55605 0.0774 0.2552 -0.20195 2011 2 14 55606 0.0760 0.2555 -0.20246 2011 2 15 55607 0.0745 0.2558 -0.20309 2011 2 16 55608 0.0730 0.2561 -0.20395 2011 2 17 55609 0.0716 0.2564 -0.20510 2011 2 18 55610 0.0701 0.2567 -0.20652 2011 2 19 55611 0.0687 0.2571 -0.20819 2011 2 20 55612 0.0673 0.2575 -0.20996 2011 2 21 55613 0.0658 0.2579 -0.21161 2011 2 22 55614 0.0644 0.2584 -0.21298 2011 2 23 55615 0.0631 0.2588 -0.21404 2011 2 24 55616 0.0617 0.2593 -0.21489 2011 2 25 55617 0.0603 0.2598 -0.21561 2011 2 26 55618 0.0590 0.2603 -0.21624 2011 2 27 55619 0.0577 0.2609 -0.21684 2011 2 28 55620 0.0563 0.2615 -0.21747 2011 3 1 55621 0.0550 0.2620 -0.21824 2011 3 2 55622 0.0538 0.2626 -0.21918 2011 3 3 55623 0.0525 0.2633 -0.22023 2011 3 4 55624 0.0512 0.2639 -0.22136 2011 3 5 55625 0.0500 0.2646 -0.22257 2011 3 6 55626 0.0488 0.2653 -0.22379 2011 3 7 55627 0.0476 0.2660 -0.22498 2011 3 8 55628 0.0464 0.2667 -0.22612 2011 3 9 55629 0.0452 0.2674 -0.22720 2011 3 10 55630 0.0441 0.2682 -0.22817 2011 3 11 55631 0.0429 0.2690 -0.22904 2011 3 12 55632 0.0418 0.2698 -0.22985 2011 3 13 55633 0.0407 0.2706 -0.23066 2011 3 14 55634 0.0396 0.2714 -0.23158 2011 3 15 55635 0.0385 0.2722 -0.23266 2011 3 16 55636 0.0375 0.2731 -0.23399 2011 3 17 55637 0.0365 0.2740 -0.23561 2011 3 18 55638 0.0355 0.2748 -0.23747 2011 3 19 55639 0.0345 0.2758 -0.23950 2011 3 20 55640 0.0335 0.2767 -0.24156 2011 3 21 55641 0.0325 0.2776 -0.24352 2011 3 22 55642 0.0316 0.2786 -0.24526 2011 3 23 55643 0.0307 0.2795 -0.24677 2011 3 24 55644 0.0298 0.2805 -0.24809 2011 3 25 55645 0.0289 0.2815 -0.24927 2011 3 26 55646 0.0281 0.2825 -0.25036 2011 3 27 55647 0.0272 0.2835 -0.25145 2011 3 28 55648 0.0264 0.2845 -0.25258 2011 3 29 55649 0.0256 0.2856 -0.25380 2011 3 30 55650 0.0248 0.2866 -0.25509 2011 3 31 55651 0.0241 0.2877 -0.25646 2011 4 1 55652 0.0234 0.2887 -0.25789 2011 4 2 55653 0.0226 0.2898 -0.25933 2011 4 3 55654 0.0219 0.2909 -0.26075 2011 4 4 55655 0.0213 0.2920 -0.26212 2011 4 5 55656 0.0206 0.2931 -0.26336 2011 4 6 55657 0.0200 0.2942 -0.26451 2011 4 7 55658 0.0194 0.2954 -0.26559 2011 4 8 55659 0.0188 0.2965 -0.26659 2011 4 9 55660 0.0182 0.2977 -0.26760 2011 4 10 55661 0.0177 0.2988 -0.26867 2011 4 11 55662 0.0172 0.3000 -0.26987 2011 4 12 55663 0.0167 0.3011 -0.27125 2011 4 13 55664 0.0162 0.3023 -0.27285 2011 4 14 55665 0.0157 0.3035 -0.27466 2011 4 15 55666 0.0153 0.3047 -0.27666 2011 4 16 55667 0.0149 0.3059 -0.27877 2011 4 17 55668 0.0145 0.3071 -0.28079 2011 4 18 55669 0.0141 0.3083 -0.28263 2011 4 19 55670 0.0137 0.3095 -0.28428 2011 4 20 55671 0.0134 0.3107 -0.28565 2011 4 21 55672 0.0131 0.3119 -0.28678 2011 4 22 55673 0.0128 0.3131 -0.28784 2011 4 23 55674 0.0125 0.3143 -0.28891 2011 4 24 55675 0.0123 0.3156 -0.29005 2011 4 25 55676 0.0121 0.3168 -0.29129 2011 4 26 55677 0.0119 0.3180 -0.29262 2011 4 27 55678 0.0117 0.3192 -0.29396 2011 4 28 55679 0.0115 0.3205 -0.29528 2011 4 29 55680 0.0114 0.3217 -0.29656 2011 4 30 55681 0.0112 0.3229 -0.29778 2011 5 1 55682 0.0111 0.3242 -0.29893 2011 5 2 55683 0.0111 0.3254 -0.30004 2011 5 3 55684 0.0110 0.3267 -0.30108 2011 5 4 55685 0.0110 0.3279 -0.30201 2011 5 5 55686 0.0109 0.3291 -0.30279 2011 5 6 55687 0.0109 0.3304 -0.30346 2011 5 7 55688 0.0110 0.3316 -0.30407 2011 5 8 55689 0.0110 0.3328 -0.30471 2011 5 9 55690 0.0111 0.3340 -0.30546 2011 5 10 55691 0.0111 0.3353 -0.30636 2011 5 11 55692 0.0112 0.3365 -0.30749 2011 5 12 55693 0.0113 0.3377 -0.30881 2011 5 13 55694 0.0115 0.3389 -0.31022 2011 5 14 55695 0.0116 0.3401 -0.31166 2011 5 15 55696 0.0118 0.3413 -0.31301 2011 5 16 55697 0.0120 0.3425 -0.31415 2011 5 17 55698 0.0122 0.3437 -0.31505 2011 5 18 55699 0.0124 0.3449 -0.31575 2011 5 19 55700 0.0127 0.3461 -0.31632 2011 5 20 55701 0.0129 0.3473 -0.31683 2011 5 21 55702 0.0132 0.3485 -0.31732 2011 5 22 55703 0.0135 0.3497 -0.31787 2011 5 23 55704 0.0138 0.3508 -0.31851 2011 5 24 55705 0.0142 0.3520 -0.31923 2011 5 25 55706 0.0145 0.3531 -0.31999 2011 5 26 55707 0.0149 0.3543 -0.32075 2011 5 27 55708 0.0153 0.3554 -0.32146 2011 5 28 55709 0.0156 0.3566 -0.32210 2011 5 29 55710 0.0161 0.3577 -0.32266 2011 5 30 55711 0.0165 0.3588 -0.32320 2011 5 31 55712 0.0169 0.3599 -0.32368 2011 6 1 55713 0.0174 0.3610 -0.32411 2011 6 2 55714 0.0179 0.3621 -0.32451 2011 6 3 55715 0.0184 0.3632 -0.32491 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) 55331 -63.18 0.13 -10.23 0.34 55332 -63.16 0.15 -10.29 0.34 55333 -63.04 0.15 -10.38 0.34 55334 -62.93 0.17 -10.44 0.34 55335 -62.92 0.17 -10.47 0.34 55336 -63.03 0.17 -10.49 0.34 55337 -63.17 0.17 -10.51 0.34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55288 -63.3 -9.1 55289 -63.2 -9.2 55290 -63.0 -9.3 55291 -63.3 -9.2 55292 -63.5 -9.2 55293 -63.5 -9.4 55294 -63.0 -9.6 55295 -62.7 -9.6 55296 -62.5 -9.3 55297 -62.3 -9.0 55298 -62.2 -8.9 55299 -62.0 -9.0 55300 -61.9 -9.3 55301 -62.0 -9.6 55302 -62.3 -9.7 55303 -62.5 -9.7 55304 -62.6 -9.7 55305 -62.7 -9.8 55306 -62.8 -10.0 55307 -62.8 -10.3 55308 -62.5 -10.5 55309 -62.2 -10.6 55310 -61.8 -10.5 55311 -61.6 -10.1 55312 -61.9 -9.7 55313 -62.3 -9.6 55314 -62.7 -9.8 55315 -62.8 -10.1 55316 -62.6 -10.3 55317 -62.2 -10.3 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55331 -0.182 0.052 -0.080 0.340 55332 -0.173 0.060 -0.066 0.340 55333 -0.170 0.060 -0.046 0.340 55334 -0.187 0.068 -0.033 0.340 55335 -0.221 0.068 -0.042 0.340 55336 -0.268 0.068 -0.056 0.340 55337 -0.314 0.068 -0.074 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55288 -0.10 -0.15 55289 -0.17 -0.05 55290 -0.22 -0.05 55291 -0.39 0.07 55292 -0.39 0.04 55293 -0.31 -0.14 55294 -0.14 -0.28 55295 -0.17 -0.25 55296 -0.23 -0.03 55297 -0.22 0.13 55298 -0.17 0.17 55299 -0.06 0.17 55300 0.02 0.07 55301 0.02 -0.07 55302 -0.06 -0.14 55303 -0.13 -0.16 55304 -0.17 -0.15 55305 -0.20 -0.14 55306 -0.23 -0.14 55307 -0.25 -0.18 55308 -0.22 -0.12 55309 -0.21 -0.10 55310 -0.13 -0.10 55311 -0.04 -0.03 55312 -0.08 0.02 55313 -0.14 -0.04 55314 -0.23 -0.13 55315 -0.27 -0.16 55316 -0.26 -0.13 55317 -0.21 -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.