********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 September 2008 Vol. XXI No. 037 ______________________________________________________________________ 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 = -0.4 seconds beginning 13 March 2008 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * A positive leap second will be introduced in UTC on * * 31 December 2008. * ********************************************************************** ________________________________________________________________________ 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 8 9 5 54714 .29870 .00009 .30348 .00009 -.468486 .000015 8 9 6 54715 .29827 .00009 .29988 .00009 -.468786 .000016 8 9 7 54716 .29788 .00009 .29636 .00009 -.468966 .000015 8 9 8 54717 .29753 .00009 .29298 .00009 -.469087 .000017 8 9 9 54718 .29724 .00009 .28975 .00009 -.469223 .000017 8 9 10 54719 .29690 .00009 .28664 .00009 -.469467 .000048 8 9 11 54720 .29650 .00009 .28367 .00009 -.469925 .000057 IERS Final Values MJD x y UT1-UTC " " s 8 7 3 54650 .2161 .4933 -.44508 8 7 4 54651 .2188 .4913 -.44538 8 7 5 54652 .2217 .4891 -.44585 8 7 6 54653 .2247 .4873 -.44647 8 7 7 54654 .2273 .4855 -.44723 8 7 8 54655 .2296 .4833 -.44807 8 7 9 54656 .2319 .4812 -.44873 8 7 10 54657 .2342 .4792 -.44932 8 7 11 54658 .2365 .4773 -.44975 8 7 12 54659 .2388 .4750 -.44977 8 7 13 54660 .2412 .4725 -.44983 8 7 14 54661 .2434 .4700 -.44951 8 7 15 54662 .2453 .4670 -.44919 8 7 16 54663 .2478 .4641 -.44877 8 7 17 54664 .2506 .4616 -.44840 8 7 18 54665 .2529 .4592 -.44817 8 7 19 54666 .2550 .4566 -.44806 8 7 20 54667 .2572 .4538 -.44820 8 7 21 54668 .2596 .4509 -.44858 8 7 22 54669 .2622 .4477 -.44923 8 7 23 54670 .2651 .4442 -.44993 8 7 24 54671 .2678 .4408 -.45070 8 7 25 54672 .2703 .4375 -.45147 8 7 26 54673 .2728 .4349 -.45210 8 7 27 54674 .2750 .4324 -.45249 8 7 28 54675 .2767 .4297 -.45270 8 7 29 54676 .2782 .4269 -.45278 8 7 30 54677 .2794 .4241 -.45272 8 7 31 54678 .2802 .4214 -.45281 8 8 1 54679 .2811 .4183 -.45301 _______________________________________________________________________ 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 = .0790 + .1211 cos A + .0018 sin A + .0946 cos C - .0732 sin C y = .3457 + .0137 cos A - .1083 sin A - .0732 cos C - .0946 sin C UT1-UTC = -.5226 - .00084 (MJD - 54728) - (UT2-UT1) where A = 2*pi*(MJD-54720)/365.25 and C = 2*pi*(MJD-54720)/435. TAI-UTC(MJD 54721) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54720)**0.80 S t = 0.00025 (MJD-54720)**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) 2008 9 12 54721 0.2957 0.2806 -0.47068 2008 9 13 54722 0.2948 0.2775 -0.47171 2008 9 14 54723 0.2937 0.2743 -0.47300 2008 9 15 54724 0.2924 0.2710 -0.47447 2008 9 16 54725 0.2911 0.2676 -0.47603 2008 9 17 54726 0.2898 0.2642 -0.47756 2008 9 18 54727 0.2883 0.2608 -0.47895 2008 9 19 54728 0.2868 0.2574 -0.48010 2008 9 20 54729 0.2852 0.2540 -0.48101 2008 9 21 54730 0.2836 0.2506 -0.48176 2008 9 22 54731 0.2819 0.2473 -0.48245 2008 9 23 54732 0.2801 0.2439 -0.48320 2008 9 24 54733 0.2783 0.2406 -0.48406 2008 9 25 54734 0.2764 0.2373 -0.48510 2008 9 26 54735 0.2745 0.2340 -0.48635 2008 9 27 54736 0.2725 0.2308 -0.48777 2008 9 28 54737 0.2705 0.2276 -0.48930 2008 9 29 54738 0.2684 0.2244 -0.49082 2008 9 30 54739 0.2662 0.2212 -0.49224 2008 10 1 54740 0.2640 0.2181 -0.49349 2008 10 2 54741 0.2618 0.2150 -0.49455 2008 10 3 54742 0.2595 0.2120 -0.49541 2008 10 4 54743 0.2571 0.2090 -0.49612 2008 10 5 54744 0.2547 0.2060 -0.49672 2008 10 6 54745 0.2522 0.2030 -0.49728 2008 10 7 54746 0.2497 0.2001 -0.49788 2008 10 8 54747 0.2472 0.1972 -0.49861 2008 10 9 54748 0.2446 0.1944 -0.49953 2008 10 10 54749 0.2419 0.1916 -0.50068 2008 10 11 54750 0.2392 0.1888 -0.50208 2008 10 12 54751 0.2365 0.1861 -0.50370 2008 10 13 54752 0.2337 0.1834 -0.50549 2008 10 14 54753 0.2309 0.1808 -0.50733 2008 10 15 54754 0.2280 0.1782 -0.50910 2008 10 16 54755 0.2251 0.1757 -0.51069 2008 10 17 54756 0.2221 0.1732 -0.51205 2008 10 18 54757 0.2191 0.1707 -0.51318 2008 10 19 54758 0.2161 0.1683 -0.51418 2008 10 20 54759 0.2130 0.1659 -0.51516 2008 10 21 54760 0.2099 0.1636 -0.51626 2008 10 22 54761 0.2067 0.1613 -0.51755 2008 10 23 54762 0.2035 0.1591 -0.51906 2008 10 24 54763 0.2003 0.1569 -0.52075 2008 10 25 54764 0.1970 0.1547 -0.52255 2008 10 26 54765 0.1937 0.1526 -0.52437 2008 10 27 54766 0.1904 0.1506 -0.52612 2008 10 28 54767 0.1870 0.1486 -0.52773 2008 10 29 54768 0.1836 0.1467 -0.52916 2008 10 30 54769 0.1802 0.1448 -0.53040 2008 10 31 54770 0.1767 0.1430 -0.53147 2008 11 1 54771 0.1732 0.1412 -0.53242 2008 11 2 54772 0.1697 0.1394 -0.53331 2008 11 3 54773 0.1662 0.1378 -0.53420 2008 11 4 54774 0.1626 0.1361 -0.53518 2008 11 5 54775 0.1590 0.1346 -0.53629 2008 11 6 54776 0.1554 0.1330 -0.53758 2008 11 7 54777 0.1517 0.1316 -0.53907 2008 11 8 54778 0.1480 0.1302 -0.54077 2008 11 9 54779 0.1443 0.1288 -0.54263 2008 11 10 54780 0.1406 0.1275 -0.54458 2008 11 11 54781 0.1369 0.1263 -0.54650 2008 11 12 54782 0.1331 0.1251 -0.54827 2008 11 13 54783 0.1293 0.1240 -0.54981 2008 11 14 54784 0.1255 0.1229 -0.55110 2008 11 15 54785 0.1217 0.1219 -0.55218 2008 11 16 54786 0.1179 0.1209 -0.55318 2008 11 17 54787 0.1140 0.1200 -0.55425 2008 11 18 54788 0.1102 0.1192 -0.55549 2008 11 19 54789 0.1063 0.1184 -0.55694 2008 11 20 54790 0.1024 0.1177 -0.55857 2008 11 21 54791 0.0985 0.1170 -0.56031 2008 11 22 54792 0.0946 0.1164 -0.56206 2008 11 23 54793 0.0907 0.1159 -0.56373 2008 11 24 54794 0.0868 0.1154 -0.56525 2008 11 25 54795 0.0829 0.1149 -0.56659 2008 11 26 54796 0.0789 0.1146 -0.56772 2008 11 27 54797 0.0750 0.1143 -0.56866 2008 11 28 54798 0.0711 0.1140 -0.56946 2008 11 29 54799 0.0671 0.1138 -0.57016 2008 11 30 54800 0.0632 0.1137 -0.57083 2008 12 1 54801 0.0592 0.1136 -0.57156 2008 12 2 54802 0.0553 0.1136 -0.57239 2008 12 3 54803 0.0513 0.1136 -0.57337 2008 12 4 54804 0.0474 0.1137 -0.57452 2008 12 5 54805 0.0434 0.1139 -0.57584 2008 12 6 54806 0.0395 0.1141 -0.57731 2008 12 7 54807 0.0356 0.1144 -0.57887 2008 12 8 54808 0.0316 0.1148 -0.58044 2008 12 9 54809 0.0277 0.1152 -0.58190 2008 12 10 54810 0.0238 0.1156 -0.58317 2008 12 11 54811 0.0199 0.1161 -0.58420 2008 12 12 54812 0.0160 0.1167 -0.58502 2008 12 13 54813 0.0121 0.1174 -0.58570 2008 12 14 54814 0.0083 0.1181 -0.58641 2008 12 15 54815 0.0044 0.1188 -0.58726 2008 12 16 54816 0.0006 0.1196 -0.58833 2008 12 17 54817 -0.0033 0.1205 -0.58962 2008 12 18 54818 -0.0071 0.1214 -0.59103 2008 12 19 54819 -0.0109 0.1224 -0.59247 2008 12 20 54820 -0.0147 0.1235 -0.59382 2008 12 21 54821 -0.0184 0.1246 -0.59500 2008 12 22 54822 -0.0222 0.1257 -0.59597 2008 12 23 54823 -0.0259 0.1270 -0.59672 2008 12 24 54824 -0.0296 0.1282 -0.59727 2008 12 25 54825 -0.0333 0.1296 -0.59766 2008 12 26 54826 -0.0369 0.1309 -0.59794 2008 12 27 54827 -0.0405 0.1324 -0.59819 2008 12 28 54828 -0.0441 0.1339 -0.59846 2008 12 29 54829 -0.0477 0.1354 -0.59894 2008 12 30 54830 -0.0513 0.1370 -0.59957 2008 12 31 54831 -0.0548 0.1387 -0.60037 2009 1 1 54832 -0.0583 0.1404 0.39865 2009 1 2 54833 -0.0618 0.1422 0.39752 2009 1 3 54834 -0.0652 0.1440 0.39630 2009 1 4 54835 -0.0686 0.1459 0.39504 2009 1 5 54836 -0.0720 0.1478 0.39384 2009 1 6 54837 -0.0753 0.1498 0.39277 2009 1 7 54838 -0.0786 0.1518 0.39191 2009 1 8 54839 -0.0819 0.1539 0.39125 2009 1 9 54840 -0.0851 0.1560 0.39072 2009 1 10 54841 -0.0883 0.1581 0.39022 2009 1 11 54842 -0.0915 0.1604 0.38959 2009 1 12 54843 -0.0946 0.1626 0.38873 2009 1 13 54844 -0.0977 0.1650 0.38761 2009 1 14 54845 -0.1007 0.1673 0.38629 2009 1 15 54846 -0.1037 0.1697 0.38487 2009 1 16 54847 -0.1067 0.1722 0.38350 2009 1 17 54848 -0.1096 0.1747 0.38226 2009 1 18 54849 -0.1125 0.1772 0.38123 2009 1 19 54850 -0.1153 0.1798 0.38042 2009 1 20 54851 -0.1181 0.1825 0.37981 2009 1 21 54852 -0.1208 0.1851 0.37937 2009 1 22 54853 -0.1235 0.1879 0.37904 2009 1 23 54854 -0.1262 0.1906 0.37875 2009 1 24 54855 -0.1288 0.1934 0.37842 2009 1 25 54856 -0.1313 0.1962 0.37800 2009 1 26 54857 -0.1339 0.1991 0.37742 2009 1 27 54858 -0.1363 0.2020 0.37664 2009 1 28 54859 -0.1387 0.2050 0.37568 2009 1 29 54860 -0.1411 0.2080 0.37454 2009 1 30 54861 -0.1434 0.2110 0.37329 2009 1 31 54862 -0.1457 0.2141 0.37199 2009 2 1 54863 -0.1479 0.2172 0.37073 2009 2 2 54864 -0.1500 0.2203 0.36959 2009 2 3 54865 -0.1521 0.2235 0.36862 2009 2 4 54866 -0.1542 0.2267 0.36784 2009 2 5 54867 -0.1562 0.2299 0.36721 2009 2 6 54868 -0.1581 0.2332 0.36663 2009 2 7 54869 -0.1600 0.2364 0.36596 2009 2 8 54870 -0.1618 0.2398 0.36510 2009 2 9 54871 -0.1636 0.2431 0.36396 2009 2 10 54872 -0.1653 0.2465 0.36256 2009 2 11 54873 -0.1670 0.2499 0.36098 2009 2 12 54874 -0.1686 0.2533 0.35936 2009 2 13 54875 -0.1702 0.2568 0.35784 2009 2 14 54876 -0.1717 0.2602 0.35649 2009 2 15 54877 -0.1731 0.2637 0.35538 2009 2 16 54878 -0.1745 0.2672 0.35448 2009 2 17 54879 -0.1758 0.2708 0.35378 2009 2 18 54880 -0.1770 0.2744 0.35320 2009 2 19 54881 -0.1782 0.2779 0.35268 2009 2 20 54882 -0.1794 0.2815 0.35216 2009 2 21 54883 -0.1805 0.2851 0.35155 2009 2 22 54884 -0.1815 0.2888 0.35080 2009 2 23 54885 -0.1824 0.2924 0.34986 2009 2 24 54886 -0.1833 0.2961 0.34871 2009 2 25 54887 -0.1842 0.2998 0.34737 2009 2 26 54888 -0.1849 0.3035 0.34588 2009 2 27 54889 -0.1857 0.3072 0.34433 2009 2 28 54890 -0.1863 0.3109 0.34280 2009 3 1 54891 -0.1869 0.3146 0.34137 2009 3 2 54892 -0.1874 0.3184 0.34013 2009 3 3 54893 -0.1879 0.3221 0.33908 2009 3 4 54894 -0.1883 0.3258 0.33819 2009 3 5 54895 -0.1886 0.3296 0.33738 2009 3 6 54896 -0.1889 0.3334 0.33654 2009 3 7 54897 -0.1891 0.3371 0.33554 2009 3 8 54898 -0.1893 0.3409 0.33429 2009 3 9 54899 -0.1894 0.3447 0.33278 2009 3 10 54900 -0.1894 0.3485 0.33104 2009 3 11 54901 -0.1894 0.3522 0.32918 2009 3 12 54902 -0.1893 0.3560 0.32734 2009 3 13 54903 -0.1892 0.3598 0.32564 2009 3 14 54904 -0.1889 0.3636 0.32415 2009 3 15 54905 -0.1887 0.3674 0.32290 2009 3 16 54906 -0.1883 0.3711 0.32186 2009 3 17 54907 -0.1879 0.3749 0.32100 2009 3 18 54908 -0.1875 0.3786 0.32024 2009 3 19 54909 -0.1869 0.3824 0.31954 2009 3 20 54910 -0.1863 0.3861 0.31882 2009 3 21 54911 -0.1857 0.3899 0.31803 2009 3 22 54912 -0.1850 0.3936 0.31712 2009 3 23 54913 -0.1842 0.3973 0.31607 2009 3 24 54914 -0.1834 0.4010 0.31487 2009 3 25 54915 -0.1825 0.4047 0.31354 2009 3 26 54916 -0.1815 0.4084 0.31213 2009 3 27 54917 -0.1805 0.4121 0.31072 2009 3 28 54918 -0.1795 0.4157 0.30940 2009 3 29 54919 -0.1783 0.4194 0.30825 2009 3 30 54920 -0.1771 0.4230 0.30733 2009 3 31 54921 -0.1759 0.4266 0.30662 2009 4 1 54922 -0.1746 0.4302 0.30605 2009 4 2 54923 -0.1732 0.4338 0.30552 2009 4 3 54924 -0.1718 0.4373 0.30491 2009 4 4 54925 -0.1703 0.4408 0.30411 2009 4 5 54926 -0.1688 0.4443 0.30309 2009 4 6 54927 -0.1672 0.4478 0.30185 2009 4 7 54928 -0.1655 0.4513 0.30047 2009 4 8 54929 -0.1638 0.4547 0.29906 2009 4 9 54930 -0.1621 0.4581 0.29775 2009 4 10 54931 -0.1603 0.4615 0.29661 2009 4 11 54932 -0.1584 0.4648 0.29568 2009 4 12 54933 -0.1565 0.4682 0.29497 2009 4 13 54934 -0.1545 0.4715 0.29441 2009 4 14 54935 -0.1525 0.4747 0.29394 2009 4 15 54936 -0.1504 0.4780 0.29350 2009 4 16 54937 -0.1483 0.4812 0.29304 2009 4 17 54938 -0.1461 0.4843 0.29247 2009 4 18 54939 -0.1438 0.4875 0.29175 2009 4 19 54940 -0.1416 0.4906 0.29082 2009 4 20 54941 -0.1392 0.4937 0.28969 2009 4 21 54942 -0.1368 0.4967 0.28839 2009 4 22 54943 -0.1344 0.4997 0.28697 2009 4 23 54944 -0.1319 0.5027 0.28546 2009 4 24 54945 -0.1294 0.5056 0.28392 2009 4 25 54946 -0.1268 0.5085 0.28245 2009 4 26 54947 -0.1242 0.5114 0.28118 2009 4 27 54948 -0.1216 0.5142 0.28018 2009 4 28 54949 -0.1189 0.5170 0.27934 2009 4 29 54950 -0.1161 0.5197 0.27859 2009 4 30 54951 -0.1133 0.5224 0.27783 2009 5 1 54952 -0.1105 0.5250 0.27685 2009 5 2 54953 -0.1076 0.5276 0.27562 2009 5 3 54954 -0.1047 0.5302 0.27417 2009 5 4 54955 -0.1017 0.5327 0.27256 2009 5 5 54956 -0.0987 0.5352 0.27093 2009 5 6 54957 -0.0957 0.5376 0.26938 2009 5 7 54958 -0.0926 0.5400 0.26796 2009 5 8 54959 -0.0895 0.5424 0.26675 2009 5 9 54960 -0.0864 0.5447 0.26580 2009 5 10 54961 -0.0832 0.5469 0.26505 2009 5 11 54962 -0.0800 0.5491 0.26440 2009 5 12 54963 -0.0767 0.5513 0.26380 2009 5 13 54964 -0.0735 0.5534 0.26324 2009 5 14 54965 -0.0702 0.5554 0.26266 2009 5 15 54966 -0.0668 0.5574 0.26201 2009 5 16 54967 -0.0634 0.5594 0.26129 2009 5 17 54968 -0.0600 0.5613 0.26046 2009 5 18 54969 -0.0566 0.5631 0.25952 2009 5 19 54970 -0.0532 0.5649 0.25850 2009 5 20 54971 -0.0497 0.5667 0.25745 2009 5 21 54972 -0.0462 0.5684 0.25642 2009 5 22 54973 -0.0426 0.5700 0.25548 2009 5 23 54974 -0.0391 0.5716 0.25473 2009 5 24 54975 -0.0355 0.5731 0.25416 2009 5 25 54976 -0.0319 0.5746 0.25377 2009 5 26 54977 -0.0283 0.5760 0.25355 2009 5 27 54978 -0.0246 0.5774 0.25331 2009 5 28 54979 -0.0210 0.5787 0.25293 2009 5 29 54980 -0.0173 0.5800 0.25233 2009 5 30 54981 -0.0136 0.5812 0.25150 2009 5 31 54982 -0.0099 0.5824 0.25047 2009 6 1 54983 -0.0061 0.5835 0.24936 2009 6 2 54984 -0.0024 0.5845 0.24828 2009 6 3 54985 0.0014 0.5855 0.24730 2009 6 4 54986 0.0052 0.5864 0.24653 2009 6 5 54987 0.0089 0.5873 0.24603 2009 6 6 54988 0.0127 0.5881 0.24580 2009 6 7 54989 0.0165 0.5888 0.24581 2009 6 8 54990 0.0204 0.5895 0.24600 2009 6 9 54991 0.0242 0.5902 0.24625 2009 6 10 54992 0.0280 0.5908 0.24646 2009 6 11 54993 0.0318 0.5913 0.24658 2009 6 12 54994 0.0357 0.5918 0.24665 2009 6 13 54995 0.0395 0.5922 0.24659 2009 6 14 54996 0.0434 0.5925 0.24637 2009 6 15 54997 0.0472 0.5928 0.24601 2009 6 16 54998 0.0511 0.5930 0.24554 2009 6 17 54999 0.0549 0.5932 0.24508 2009 6 18 55000 0.0588 0.5933 0.24470 2009 6 19 55001 0.0626 0.5934 0.24447 2009 6 20 55002 0.0665 0.5934 0.24440 2009 6 21 55003 0.0703 0.5933 0.24460 2009 6 22 55004 0.0742 0.5932 0.24505 2009 6 23 55005 0.0780 0.5931 0.24552 2009 6 24 55006 0.0818 0.5928 0.24588 2009 6 25 55007 0.0856 0.5925 0.24606 2009 6 26 55008 0.0894 0.5922 0.24602 2009 6 27 55009 0.0932 0.5918 0.24579 2009 6 28 55010 0.0970 0.5913 0.24547 2009 6 29 55011 0.1008 0.5908 0.24521 2009 6 30 55012 0.1046 0.5902 0.24513 2009 7 1 55013 0.1083 0.5896 0.24525 2009 7 2 55014 0.1121 0.5889 0.24555 2009 7 3 55015 0.1158 0.5882 0.24600 2009 7 4 55016 0.1195 0.5874 0.24655 2009 7 5 55017 0.1232 0.5865 0.24713 2009 7 6 55018 0.1269 0.5856 0.24767 2009 7 7 55019 0.1305 0.5846 0.24811 2009 7 8 55020 0.1342 0.5836 0.24843 2009 7 9 55021 0.1378 0.5825 0.24862 2009 7 10 55022 0.1414 0.5814 0.24865 2009 7 11 55023 0.1449 0.5802 0.24856 2009 7 12 55024 0.1485 0.5790 0.24835 2009 7 13 55025 0.1520 0.5777 0.24804 2009 7 14 55026 0.1555 0.5763 0.24767 2009 7 15 55027 0.1590 0.5749 0.24731 2009 7 16 55028 0.1624 0.5735 0.24700 2009 7 17 55029 0.1658 0.5720 0.24685 2009 7 18 55030 0.1692 0.5704 0.24689 2009 7 19 55031 0.1726 0.5688 0.24713 2009 7 20 55032 0.1759 0.5671 0.24749 2009 7 21 55033 0.1792 0.5654 0.24782 2009 7 22 55034 0.1825 0.5637 0.24800 2009 7 23 55035 0.1857 0.5618 0.24796 2009 7 24 55036 0.1889 0.5600 0.24770 2009 7 25 55037 0.1921 0.5581 0.24734 2009 7 26 55038 0.1953 0.5561 0.24707 2009 7 27 55039 0.1984 0.5541 0.24698 2009 7 28 55040 0.2014 0.5521 0.24713 2009 7 29 55041 0.2044 0.5500 0.24752 2009 7 30 55042 0.2074 0.5478 0.24812 2009 7 31 55043 0.2104 0.5456 0.24888 2009 8 1 55044 0.2133 0.5434 0.24974 2009 8 2 55045 0.2162 0.5411 0.25070 2009 8 3 55046 0.2190 0.5388 0.25175 2009 8 4 55047 0.2218 0.5364 0.25277 2009 8 5 55048 0.2245 0.5340 0.25365 2009 8 6 55049 0.2272 0.5316 0.25432 2009 8 7 55050 0.2299 0.5291 0.25480 2009 8 8 55051 0.2325 0.5266 0.25510 2009 8 9 55052 0.2351 0.5240 0.25525 2009 8 10 55053 0.2376 0.5214 0.25530 2009 8 11 55054 0.2401 0.5188 0.25537 2009 8 12 55055 0.2426 0.5161 0.25557 2009 8 13 55056 0.2449 0.5134 0.25594 2009 8 14 55057 0.2473 0.5106 0.25643 2009 8 15 55058 0.2496 0.5078 0.25699 2009 8 16 55059 0.2518 0.5050 0.25760 2009 8 17 55060 0.2540 0.5021 0.25819 2009 8 18 55061 0.2562 0.4992 0.25866 2009 8 19 55062 0.2583 0.4963 0.25881 2009 8 20 55063 0.2603 0.4933 0.25859 2009 8 21 55064 0.2623 0.4904 0.25808 2009 8 22 55065 0.2643 0.4873 0.25743 2009 8 23 55066 0.2662 0.4843 0.25683 2009 8 24 55067 0.2680 0.4812 0.25643 2009 8 25 55068 0.2698 0.4781 0.25629 2009 8 26 55069 0.2715 0.4750 0.25641 2009 8 27 55070 0.2732 0.4718 0.25673 2009 8 28 55071 0.2749 0.4686 0.25717 2009 8 29 55072 0.2764 0.4654 0.25768 2009 8 30 55073 0.2780 0.4622 0.25820 2009 8 31 55074 0.2794 0.4589 0.25871 2009 9 1 55075 0.2808 0.4557 0.25910 2009 9 2 55076 0.2822 0.4524 0.25928 2009 9 3 55077 0.2835 0.4490 0.25925 2009 9 4 55078 0.2847 0.4457 0.25899 2009 9 5 55079 0.2859 0.4423 0.25850 2009 9 6 55080 0.2870 0.4390 0.25787 2009 9 7 55081 0.2881 0.4356 0.25720 2009 9 8 55082 0.2891 0.4322 0.25660 2009 9 9 55083 0.2901 0.4287 0.25610 2009 9 10 55084 0.2910 0.4253 0.25575 2009 9 11 55085 0.2918 0.4219 0.25556 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) 54698 -69.77 .74 -7.74 .34 54699 -70.05 .74 -7.75 .34 54700 -70.22 .74 -7.75 .34 54701 -70.23 .74 -7.76 .34 54702 -70.09 .74 -7.80 .34 54703 -69.85 .74 -7.86 .34 54704 -69.60 .74 -7.92 .34 54705 -69.43 .74 -7.94 .34 54706 -69.37 .74 -7.88 .34 54707 -69.37 .74 -7.72 .34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 54650 -61.9 -8.4 54651 -62.2 -8.4 54652 -63.1 -8.3 54653 -63.5 -8.3 54654 -63.6 -8.1 54655 -63.5 -7.8 54656 -63.7 -7.7 54657 -64.0 -7.7 54658 -64.4 -7.9 54659 -64.7 -8.0 54660 -64.8 -7.9 54661 -64.8 -7.9 54662 -64.7 -8.1 54663 -64.9 -8.3 54664 -65.3 -8.3 54665 -65.8 -8.1 54666 -66.1 -7.7 54667 -66.3 -7.5 54668 -66.3 -7.5 54669 -66.3 -7.7 54670 -66.3 -8.0 54671 -66.4 -8.1 54672 -66.7 -8.1 54673 -67.1 -7.9 54674 -67.3 -7.8 54675 -67.4 -7.9 54676 -67.1 -8.1 54677 -66.8 -8.2 54678 -66.7 -8.2 54679 -66.7 -8.0 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54698 0.062 0.294 -0.390 0.340 54699 0.057 0.294 -0.376 0.340 54700 0.048 0.294 -0.371 0.340 54701 0.042 0.294 -0.371 0.340 54702 0.044 0.294 -0.382 0.340 54703 0.054 0.294 -0.386 0.340 54704 0.067 0.294 -0.370 0.340 54705 0.083 0.294 -0.335 0.340 54706 0.100 0.294 -0.296 0.340 54707 0.109 0.294 -0.253 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 54650 0.52 -0.63 54651 0.36 -0.81 54652 -0.01 -0.77 54653 -0.18 -0.72 54654 -0.10 -0.53 54655 0.22 -0.35 54656 0.47 -0.32 54657 0.52 -0.24 54658 0.35 -0.28 54659 0.17 -0.32 54660 0.13 -0.26 54661 0.21 -0.27 54662 0.36 -0.37 54663 0.39 -0.47 54664 0.31 -0.53 54665 0.15 -0.57 54666 0.03 -0.43 54667 -0.05 -0.33 54668 0.01 -0.26 54669 0.11 -0.31 54670 0.19 -0.49 54671 0.21 -0.54 54672 0.15 -0.54 54673 0.07 -0.34 54674 0.09 -0.22 54675 0.09 -0.24 54676 0.18 -0.32 54677 0.24 -0.38 54678 0.26 -0.50 54679 0.29 -0.49 The IERS Conventions recommended software to predict celestial pole offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/ ceppred.f and software for the calculation of the dX and dY with respect to IAU2000A Nutation/Precession Theory can be found at the web site in section chapter 5.