********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 9 October 2008 Vol. XXI No. 041 ______________________________________________________________________ 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 10 3 54742 .25982 .00009 .21498 .00009 -.493750 .000006 8 10 4 54743 .25692 .00009 .21229 .00009 -.494290 .000008 8 10 5 54744 .25437 .00009 .20971 .00009 -.494682 .000008 8 10 6 54745 .25210 .00009 .20752 .00009 -.495031 .000011 8 10 7 54746 .24971 .00009 .20553 .00009 -.495397 .000037 8 10 8 54747 .24721 .00009 .20341 .00009 -.495867 .000048 8 10 9 54748 .24485 .00009 .20067 .00009 -.496561 .000057 IERS Final Values MJD x y UT1-UTC " " s 8 8 2 54680 .2823 .4151 -.45346 8 8 3 54681 .2837 .4116 -.45403 8 8 4 54682 .2853 .4081 -.45483 8 8 5 54683 .2869 .4047 -.45563 8 8 6 54684 .2886 .4013 -.45628 8 8 7 54685 .2900 .3984 -.45677 8 8 8 54686 .2907 .3956 -.45713 8 8 9 54687 .2914 .3927 -.45726 8 8 10 54688 .2919 .3895 -.45724 8 8 11 54689 .2924 .3861 -.45717 8 8 12 54690 .2928 .3827 -.45692 8 8 13 54691 .2930 .3794 -.45672 8 8 14 54692 .2930 .3764 -.45659 8 8 15 54693 .2929 .3735 -.45662 8 8 16 54694 .2936 .3707 -.45682 8 8 17 54695 .2942 .3681 -.45714 8 8 18 54696 .2945 .3651 -.45770 8 8 19 54697 .2948 .3619 -.45846 8 8 20 54698 .2954 .3588 -.45930 8 8 21 54699 .2961 .3557 -.46011 8 8 22 54700 .2970 .3524 -.46080 8 8 23 54701 .2980 .3491 -.46126 8 8 24 54702 .2986 .3462 -.46150 8 8 25 54703 .2982 .3431 -.46158 8 8 26 54704 .2979 .3395 -.46162 8 8 27 54705 .2981 .3359 -.46178 8 8 28 54706 .2982 .3327 -.46206 8 8 29 54707 .2983 .3296 -.46252 8 8 30 54708 .2985 .3262 -.46334 8 8 31 54709 .2986 .3224 -.46427 _______________________________________________________________________ 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 = .0696 + .1107 cos A - .0383 sin A + .0662 cos C - .1185 sin C y = .3429 - .0240 cos A - .1018 sin A - .1185 cos C - .0662 sin C UT1-UTC = -.5401 - .00087 (MJD - 54756) - (UT2-UT1) where A = 2*pi*(MJD-54748)/365.25 and C = 2*pi*(MJD-54748)/435. TAI-UTC(MJD 54749) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54748)**0.80 S t = 0.00025 (MJD-54748)**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 10 10 54749 0.2424 0.1982 -0.49752 2008 10 11 54750 0.2401 0.1954 -0.49873 2008 10 12 54751 0.2376 0.1926 -0.50015 2008 10 13 54752 0.2351 0.1900 -0.50171 2008 10 14 54753 0.2324 0.1875 -0.50332 2008 10 15 54754 0.2296 0.1851 -0.50486 2008 10 16 54755 0.2268 0.1827 -0.50625 2008 10 17 54756 0.2240 0.1803 -0.50740 2008 10 18 54757 0.2211 0.1779 -0.50830 2008 10 19 54758 0.2182 0.1756 -0.50903 2008 10 20 54759 0.2152 0.1732 -0.50973 2008 10 21 54760 0.2122 0.1709 -0.51055 2008 10 22 54761 0.2092 0.1687 -0.51155 2008 10 23 54762 0.2061 0.1665 -0.51275 2008 10 24 54763 0.2030 0.1643 -0.51413 2008 10 25 54764 0.1998 0.1622 -0.51564 2008 10 26 54765 0.1966 0.1601 -0.51720 2008 10 27 54766 0.1934 0.1581 -0.51869 2008 10 28 54767 0.1901 0.1562 -0.52004 2008 10 29 54768 0.1868 0.1542 -0.52121 2008 10 30 54769 0.1835 0.1524 -0.52219 2008 10 31 54770 0.1801 0.1505 -0.52303 2008 11 1 54771 0.1767 0.1487 -0.52377 2008 11 2 54772 0.1733 0.1470 -0.52448 2008 11 3 54773 0.1698 0.1453 -0.52523 2008 11 4 54774 0.1663 0.1437 -0.52606 2008 11 5 54775 0.1628 0.1421 -0.52704 2008 11 6 54776 0.1593 0.1406 -0.52819 2008 11 7 54777 0.1557 0.1392 -0.52955 2008 11 8 54778 0.1521 0.1377 -0.53111 2008 11 9 54779 0.1485 0.1364 -0.53284 2008 11 10 54780 0.1448 0.1351 -0.53466 2008 11 11 54781 0.1412 0.1338 -0.53645 2008 11 12 54782 0.1375 0.1326 -0.53810 2008 11 13 54783 0.1338 0.1315 -0.53952 2008 11 14 54784 0.1301 0.1304 -0.54069 2008 11 15 54785 0.1264 0.1294 -0.54166 2008 11 16 54786 0.1226 0.1284 -0.54256 2008 11 17 54787 0.1189 0.1275 -0.54352 2008 11 18 54788 0.1151 0.1266 -0.54466 2008 11 19 54789 0.1113 0.1258 -0.54601 2008 11 20 54790 0.1075 0.1251 -0.54755 2008 11 21 54791 0.1037 0.1244 -0.54920 2008 11 22 54792 0.0998 0.1237 -0.55087 2008 11 23 54793 0.0960 0.1232 -0.55246 2008 11 24 54794 0.0921 0.1226 -0.55390 2008 11 25 54795 0.0883 0.1222 -0.55516 2008 11 26 54796 0.0844 0.1218 -0.55622 2008 11 27 54797 0.0806 0.1214 -0.55711 2008 11 28 54798 0.0767 0.1212 -0.55786 2008 11 29 54799 0.0728 0.1209 -0.55854 2008 11 30 54800 0.0689 0.1208 -0.55920 2008 12 1 54801 0.0651 0.1207 -0.55992 2008 12 2 54802 0.0612 0.1206 -0.56075 2008 12 3 54803 0.0573 0.1206 -0.56175 2008 12 4 54804 0.0534 0.1207 -0.56292 2008 12 5 54805 0.0495 0.1208 -0.56427 2008 12 6 54806 0.0457 0.1210 -0.56579 2008 12 7 54807 0.0418 0.1212 -0.56741 2008 12 8 54808 0.0379 0.1215 -0.56906 2008 12 9 54809 0.0341 0.1219 -0.57062 2008 12 10 54810 0.0302 0.1223 -0.57201 2008 12 11 54811 0.0264 0.1228 -0.57318 2008 12 12 54812 0.0226 0.1233 -0.57415 2008 12 13 54813 0.0187 0.1239 -0.57501 2008 12 14 54814 0.0149 0.1246 -0.57589 2008 12 15 54815 0.0111 0.1253 -0.57692 2008 12 16 54816 0.0073 0.1261 -0.57818 2008 12 17 54817 0.0036 0.1269 -0.57965 2008 12 18 54818 -0.0002 0.1278 -0.58126 2008 12 19 54819 -0.0039 0.1287 -0.58290 2008 12 20 54820 -0.0077 0.1297 -0.58445 2008 12 21 54821 -0.0114 0.1308 -0.58584 2008 12 22 54822 -0.0150 0.1319 -0.58703 2008 12 23 54823 -0.0187 0.1330 -0.58801 2008 12 24 54824 -0.0224 0.1343 -0.58879 2008 12 25 54825 -0.0260 0.1355 -0.58942 2008 12 26 54826 -0.0296 0.1369 -0.58994 2008 12 27 54827 -0.0332 0.1382 -0.59043 2008 12 28 54828 -0.0367 0.1397 -0.59096 2008 12 29 54829 -0.0402 0.1412 -0.59159 2008 12 30 54830 -0.0438 0.1427 -0.59237 2008 12 31 54831 -0.0472 0.1443 -0.59333 2009 1 1 54832 -0.0507 0.1460 0.40553 2009 1 2 54833 -0.0541 0.1477 0.40424 2009 1 3 54834 -0.0575 0.1494 0.40284 2009 1 4 54835 -0.0608 0.1513 0.40140 2009 1 5 54836 -0.0642 0.1531 0.40001 2009 1 6 54837 -0.0675 0.1550 0.39876 2009 1 7 54838 -0.0707 0.1570 0.39771 2009 1 8 54839 -0.0740 0.1590 0.39685 2009 1 9 54840 -0.0772 0.1610 0.39614 2009 1 10 54841 -0.0803 0.1632 0.39544 2009 1 11 54842 -0.0834 0.1653 0.39463 2009 1 12 54843 -0.0865 0.1675 0.39359 2009 1 13 54844 -0.0896 0.1698 0.39230 2009 1 14 54845 -0.0926 0.1721 0.39082 2009 1 15 54846 -0.0955 0.1744 0.38924 2009 1 16 54847 -0.0985 0.1768 0.38771 2009 1 17 54848 -0.1014 0.1792 0.38634 2009 1 18 54849 -0.1042 0.1817 0.38518 2009 1 19 54850 -0.1070 0.1842 0.38425 2009 1 20 54851 -0.1098 0.1868 0.38354 2009 1 21 54852 -0.1125 0.1894 0.38300 2009 1 22 54853 -0.1152 0.1920 0.38257 2009 1 23 54854 -0.1178 0.1947 0.38220 2009 1 24 54855 -0.1204 0.1974 0.38180 2009 1 25 54856 -0.1229 0.2002 0.38130 2009 1 26 54857 -0.1254 0.2030 0.38063 2009 1 27 54858 -0.1278 0.2059 0.37977 2009 1 28 54859 -0.1302 0.2088 0.37871 2009 1 29 54860 -0.1326 0.2117 0.37749 2009 1 30 54861 -0.1349 0.2146 0.37615 2009 1 31 54862 -0.1371 0.2176 0.37476 2009 2 1 54863 -0.1393 0.2206 0.37342 2009 2 2 54864 -0.1415 0.2237 0.37219 2009 2 3 54865 -0.1435 0.2268 0.37114 2009 2 4 54866 -0.1456 0.2299 0.37028 2009 2 5 54867 -0.1476 0.2331 0.36957 2009 2 6 54868 -0.1495 0.2362 0.36891 2009 2 7 54869 -0.1514 0.2394 0.36816 2009 2 8 54870 -0.1532 0.2427 0.36721 2009 2 9 54871 -0.1550 0.2460 0.36599 2009 2 10 54872 -0.1567 0.2493 0.36451 2009 2 11 54873 -0.1584 0.2526 0.36286 2009 2 12 54874 -0.1600 0.2559 0.36117 2009 2 13 54875 -0.1615 0.2593 0.35956 2009 2 14 54876 -0.1630 0.2627 0.35815 2009 2 15 54877 -0.1644 0.2661 0.35696 2009 2 16 54878 -0.1658 0.2695 0.35599 2009 2 17 54879 -0.1671 0.2730 0.35521 2009 2 18 54880 -0.1684 0.2765 0.35457 2009 2 19 54881 -0.1696 0.2800 0.35398 2009 2 20 54882 -0.1707 0.2835 0.35339 2009 2 21 54883 -0.1718 0.2870 0.35272 2009 2 22 54884 -0.1728 0.2906 0.35190 2009 2 23 54885 -0.1738 0.2942 0.35090 2009 2 24 54886 -0.1747 0.2977 0.34969 2009 2 25 54887 -0.1755 0.3013 0.34830 2009 2 26 54888 -0.1763 0.3050 0.34677 2009 2 27 54889 -0.1771 0.3086 0.34517 2009 2 28 54890 -0.1777 0.3122 0.34359 2009 3 1 54891 -0.1783 0.3159 0.34213 2009 3 2 54892 -0.1789 0.3195 0.34085 2009 3 3 54893 -0.1793 0.3232 0.33977 2009 3 4 54894 -0.1798 0.3268 0.33885 2009 3 5 54895 -0.1801 0.3305 0.33802 2009 3 6 54896 -0.1804 0.3342 0.33715 2009 3 7 54897 -0.1807 0.3379 0.33613 2009 3 8 54898 -0.1808 0.3416 0.33486 2009 3 9 54899 -0.1810 0.3453 0.33333 2009 3 10 54900 -0.1810 0.3490 0.33158 2009 3 11 54901 -0.1810 0.3527 0.32972 2009 3 12 54902 -0.1809 0.3564 0.32788 2009 3 13 54903 -0.1808 0.3601 0.32617 2009 3 14 54904 -0.1806 0.3637 0.32467 2009 3 15 54905 -0.1804 0.3674 0.32341 2009 3 16 54906 -0.1800 0.3711 0.32236 2009 3 17 54907 -0.1797 0.3748 0.32147 2009 3 18 54908 -0.1792 0.3785 0.32067 2009 3 19 54909 -0.1787 0.3822 0.31989 2009 3 20 54910 -0.1782 0.3858 0.31906 2009 3 21 54911 -0.1776 0.3895 0.31812 2009 3 22 54912 -0.1769 0.3931 0.31700 2009 3 23 54913 -0.1761 0.3968 0.31569 2009 3 24 54914 -0.1753 0.4004 0.31418 2009 3 25 54915 -0.1745 0.4040 0.31250 2009 3 26 54916 -0.1736 0.4076 0.31072 2009 3 27 54917 -0.1726 0.4112 0.30892 2009 3 28 54918 -0.1716 0.4148 0.30721 2009 3 29 54919 -0.1705 0.4183 0.30568 2009 3 30 54920 -0.1693 0.4219 0.30435 2009 3 31 54921 -0.1681 0.4254 0.30321 2009 4 1 54922 -0.1668 0.4289 0.30219 2009 4 2 54923 -0.1655 0.4324 0.30117 2009 4 3 54924 -0.1641 0.4359 0.30003 2009 4 4 54925 -0.1627 0.4393 0.29870 2009 4 5 54926 -0.1612 0.4427 0.29711 2009 4 6 54927 -0.1596 0.4461 0.29529 2009 4 7 54928 -0.1580 0.4495 0.29333 2009 4 8 54929 -0.1564 0.4529 0.29131 2009 4 9 54930 -0.1547 0.4562 0.28936 2009 4 10 54931 -0.1529 0.4595 0.28757 2009 4 11 54932 -0.1511 0.4628 0.28596 2009 4 12 54933 -0.1492 0.4660 0.28454 2009 4 13 54934 -0.1473 0.4693 0.28328 2009 4 14 54935 -0.1453 0.4725 0.28209 2009 4 15 54936 -0.1433 0.4756 0.28093 2009 4 16 54937 -0.1412 0.4788 0.27973 2009 4 17 54938 -0.1390 0.4819 0.27843 2009 4 18 54939 -0.1369 0.4849 0.27701 2009 4 19 54940 -0.1346 0.4880 0.27545 2009 4 20 54941 -0.1323 0.4910 0.27376 2009 4 21 54942 -0.1300 0.4940 0.27197 2009 4 22 54943 -0.1276 0.4969 0.27014 2009 4 23 54944 -0.1252 0.4998 0.26835 2009 4 24 54945 -0.1227 0.5027 0.26670 2009 4 25 54946 -0.1202 0.5055 0.26529 2009 4 26 54947 -0.1177 0.5083 0.26418 2009 4 27 54948 -0.1151 0.5110 0.26337 2009 4 28 54949 -0.1124 0.5137 0.26279 2009 4 29 54950 -0.1097 0.5164 0.26231 2009 4 30 54951 -0.1070 0.5190 0.26179 2009 5 1 54952 -0.1042 0.5216 0.26112 2009 5 2 54953 -0.1014 0.5242 0.26023 2009 5 3 54954 -0.0985 0.5267 0.25913 2009 5 4 54955 -0.0956 0.5291 0.25789 2009 5 5 54956 -0.0927 0.5316 0.25660 2009 5 6 54957 -0.0897 0.5339 0.25538 2009 5 7 54958 -0.0867 0.5363 0.25431 2009 5 8 54959 -0.0837 0.5385 0.25345 2009 5 9 54960 -0.0806 0.5408 0.25280 2009 5 10 54961 -0.0775 0.5430 0.25233 2009 5 11 54962 -0.0743 0.5451 0.25201 2009 5 12 54963 -0.0711 0.5472 0.25177 2009 5 13 54964 -0.0679 0.5493 0.25158 2009 5 14 54965 -0.0647 0.5513 0.25139 2009 5 15 54966 -0.0614 0.5532 0.25116 2009 5 16 54967 -0.0581 0.5551 0.25085 2009 5 17 54968 -0.0548 0.5570 0.25042 2009 5 18 54969 -0.0514 0.5588 0.24987 2009 5 19 54970 -0.0480 0.5605 0.24925 2009 5 20 54971 -0.0446 0.5622 0.24858 2009 5 21 54972 -0.0411 0.5639 0.24793 2009 5 22 54973 -0.0377 0.5655 0.24739 2009 5 23 54974 -0.0342 0.5670 0.24703 2009 5 24 54975 -0.0307 0.5685 0.24689 2009 5 25 54976 -0.0271 0.5700 0.24693 2009 5 26 54977 -0.0236 0.5714 0.24708 2009 5 27 54978 -0.0200 0.5727 0.24721 2009 5 28 54979 -0.0164 0.5740 0.24717 2009 5 29 54980 -0.0128 0.5752 0.24693 2009 5 30 54981 -0.0092 0.5764 0.24650 2009 5 31 54982 -0.0055 0.5775 0.24592 2009 6 1 54983 -0.0018 0.5786 0.24534 2009 6 2 54984 0.0018 0.5796 0.24487 2009 6 3 54985 0.0055 0.5805 0.24453 2009 6 4 54986 0.0092 0.5814 0.24444 2009 6 5 54987 0.0129 0.5822 0.24458 2009 6 6 54988 0.0167 0.5830 0.24489 2009 6 7 54989 0.0204 0.5838 0.24531 2009 6 8 54990 0.0242 0.5844 0.24580 2009 6 9 54991 0.0279 0.5850 0.24628 2009 6 10 54992 0.0317 0.5856 0.24671 2009 6 11 54993 0.0354 0.5861 0.24707 2009 6 12 54994 0.0392 0.5866 0.24728 2009 6 13 54995 0.0430 0.5869 0.24730 2009 6 14 54996 0.0468 0.5873 0.24713 2009 6 15 54997 0.0505 0.5875 0.24682 2009 6 16 54998 0.0543 0.5878 0.24645 2009 6 17 54999 0.0581 0.5879 0.24608 2009 6 18 55000 0.0619 0.5880 0.24572 2009 6 19 55001 0.0657 0.5881 0.24541 2009 6 20 55002 0.0694 0.5881 0.24522 2009 6 21 55003 0.0732 0.5880 0.24522 2009 6 22 55004 0.0770 0.5879 0.24539 2009 6 23 55005 0.0807 0.5877 0.24557 2009 6 24 55006 0.0845 0.5875 0.24566 2009 6 25 55007 0.0882 0.5872 0.24558 2009 6 26 55008 0.0920 0.5868 0.24521 2009 6 27 55009 0.0957 0.5864 0.24461 2009 6 28 55010 0.0994 0.5859 0.24391 2009 6 29 55011 0.1032 0.5854 0.24324 2009 6 30 55012 0.1068 0.5848 0.24274 2009 7 1 55013 0.1105 0.5842 0.24246 2009 7 2 55014 0.1142 0.5835 0.24238 2009 7 3 55015 0.1179 0.5828 0.24251 2009 7 4 55016 0.1215 0.5820 0.24284 2009 7 5 55017 0.1251 0.5811 0.24326 2009 7 6 55018 0.1287 0.5802 0.24367 2009 7 7 55019 0.1323 0.5793 0.24402 2009 7 8 55020 0.1359 0.5783 0.24429 2009 7 9 55021 0.1394 0.5772 0.24445 2009 7 10 55022 0.1430 0.5761 0.24450 2009 7 11 55023 0.1465 0.5749 0.24447 2009 7 12 55024 0.1500 0.5737 0.24434 2009 7 13 55025 0.1534 0.5724 0.24418 2009 7 14 55026 0.1568 0.5711 0.24403 2009 7 15 55027 0.1603 0.5697 0.24395 2009 7 16 55028 0.1636 0.5682 0.24397 2009 7 17 55029 0.1670 0.5668 0.24415 2009 7 18 55030 0.1703 0.5652 0.24449 2009 7 19 55031 0.1736 0.5636 0.24493 2009 7 20 55032 0.1769 0.5620 0.24539 2009 7 21 55033 0.1801 0.5603 0.24583 2009 7 22 55034 0.1833 0.5586 0.24607 2009 7 23 55035 0.1865 0.5568 0.24603 2009 7 24 55036 0.1897 0.5550 0.24572 2009 7 25 55037 0.1928 0.5531 0.24523 2009 7 26 55038 0.1958 0.5512 0.24466 2009 7 27 55039 0.1989 0.5492 0.24415 2009 7 28 55040 0.2019 0.5472 0.24381 2009 7 29 55041 0.2049 0.5451 0.24365 2009 7 30 55042 0.2078 0.5430 0.24370 2009 7 31 55043 0.2107 0.5409 0.24398 2009 8 1 55044 0.2135 0.5387 0.24443 2009 8 2 55045 0.2163 0.5364 0.24499 2009 8 3 55046 0.2191 0.5341 0.24560 2009 8 4 55047 0.2219 0.5318 0.24614 2009 8 5 55048 0.2245 0.5295 0.24654 2009 8 6 55049 0.2272 0.5271 0.24676 2009 8 7 55050 0.2298 0.5246 0.24689 2009 8 8 55051 0.2324 0.5221 0.24689 2009 8 9 55052 0.2349 0.5196 0.24677 2009 8 10 55053 0.2374 0.5171 0.24656 2009 8 11 55054 0.2398 0.5145 0.24635 2009 8 12 55055 0.2422 0.5118 0.24623 2009 8 13 55056 0.2445 0.5092 0.24627 2009 8 14 55057 0.2468 0.5065 0.24647 2009 8 15 55058 0.2491 0.5037 0.24675 2009 8 16 55059 0.2513 0.5010 0.24718 2009 8 17 55060 0.2534 0.4982 0.24766 2009 8 18 55061 0.2555 0.4953 0.24798 2009 8 19 55062 0.2576 0.4925 0.24803 2009 8 20 55063 0.2596 0.4896 0.24783 2009 8 21 55064 0.2615 0.4866 0.24741 2009 8 22 55065 0.2634 0.4837 0.24687 2009 8 23 55066 0.2653 0.4807 0.24635 2009 8 24 55067 0.2671 0.4777 0.24599 2009 8 25 55068 0.2688 0.4746 0.24590 2009 8 26 55069 0.2705 0.4716 0.24603 2009 8 27 55070 0.2722 0.4685 0.24630 2009 8 28 55071 0.2738 0.4654 0.24664 2009 8 29 55072 0.2753 0.4622 0.24697 2009 8 30 55073 0.2768 0.4591 0.24721 2009 8 31 55074 0.2782 0.4559 0.24727 2009 9 1 55075 0.2796 0.4527 0.24714 2009 9 2 55076 0.2809 0.4494 0.24679 2009 9 3 55077 0.2822 0.4462 0.24628 2009 9 4 55078 0.2834 0.4429 0.24558 2009 9 5 55079 0.2845 0.4397 0.24479 2009 9 6 55080 0.2856 0.4364 0.24393 2009 9 7 55081 0.2867 0.4330 0.24305 2009 9 8 55082 0.2877 0.4297 0.24222 2009 9 9 55083 0.2886 0.4264 0.24147 2009 9 10 55084 0.2895 0.4230 0.24083 2009 9 11 55085 0.2903 0.4196 0.24033 2009 9 12 55086 0.2910 0.4162 0.23992 2009 9 13 55087 0.2917 0.4128 0.23956 2009 9 14 55088 0.2924 0.4094 0.23914 2009 9 15 55089 0.2930 0.4060 0.23855 2009 9 16 55090 0.2935 0.4026 0.23774 2009 9 17 55091 0.2940 0.3992 0.23671 2009 9 18 55092 0.2944 0.3957 0.23553 2009 9 19 55093 0.2948 0.3923 0.23436 2009 9 20 55094 0.2951 0.3888 0.23340 2009 9 21 55095 0.2953 0.3854 0.23270 2009 9 22 55096 0.2955 0.3819 0.23227 2009 9 23 55097 0.2956 0.3785 0.23206 2009 9 24 55098 0.2957 0.3750 0.23200 2009 9 25 55099 0.2957 0.3715 0.23202 2009 9 26 55100 0.2957 0.3681 0.23204 2009 9 27 55101 0.2956 0.3646 0.23206 2009 9 28 55102 0.2954 0.3612 0.23208 2009 9 29 55103 0.2952 0.3577 0.23200 2009 9 30 55104 0.2949 0.3542 0.23175 2009 10 1 55105 0.2946 0.3508 0.23127 2009 10 2 55106 0.2942 0.3474 0.23064 2009 10 3 55107 0.2937 0.3439 0.22990 2009 10 4 55108 0.2932 0.3405 0.22908 2009 10 5 55109 0.2927 0.3371 0.22827 2009 10 6 55110 0.2921 0.3337 0.22756 2009 10 7 55111 0.2914 0.3303 0.22708 2009 10 8 55112 0.2907 0.3269 0.22679 2009 10 9 55113 0.2899 0.3235 0.22658 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) 54729 -70.75 .26 -7.27 .34 54730 -70.44 .21 -7.30 .16 54731 -70.03 .21 -7.32 .16 54732 -69.65 .74 -7.35 .23 54733 -69.40 .18 -7.39 .18 54734 -69.26 .18 -7.42 .18 54735 -69.15 .18 -7.37 .18 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 54680 -66.8 -7.8 54681 -66.7 -7.7 54682 -66.9 -7.7 54683 -67.7 -7.8 54684 -68.7 -7.9 54685 -69.6 -8.0 54686 -69.9 -8.0 54687 -69.8 -7.8 54688 -69.5 -7.6 54689 -69.1 -7.5 54690 -68.9 -7.6 54691 -68.8 -7.8 54692 -68.9 -7.9 54693 -69.0 -7.9 54694 -69.1 -7.7 54695 -69.1 -7.6 54696 -69.2 -7.7 54697 -69.3 -7.8 54698 -69.6 -7.8 54699 -69.9 -7.8 54700 -70.0 -7.8 54701 -70.0 -7.8 54702 -69.8 -7.8 54703 -69.5 -7.9 54704 -69.3 -8.0 54705 -69.2 -8.0 54706 -69.2 -7.9 54707 -69.3 -7.7 54708 -69.3 -7.5 54709 -69.2 -7.3 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54729 -0.020 0.103 -0.341 0.340 54730 -0.028 0.084 -0.359 0.160 54731 -0.030 0.084 -0.394 0.160 54732 -0.008 0.294 -0.421 0.230 54733 0.019 0.072 -0.417 0.180 54734 0.028 0.072 -0.403 0.180 54735 0.016 0.072 -0.389 0.180 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 54680 0.25 -0.42 54681 0.27 -0.33 54682 0.24 -0.31 54683 0.14 -0.39 54684 0.05 -0.45 54685 -0.08 -0.46 54686 -0.14 -0.40 54687 -0.18 -0.26 54688 -0.15 -0.20 54689 -0.04 -0.19 54690 0.03 -0.25 54691 0.11 -0.35 54692 0.14 -0.42 54693 0.16 -0.51 54694 0.14 -0.45 54695 0.13 -0.43 54696 0.10 -0.50 54697 0.14 -0.51 54698 0.13 -0.45 54699 0.12 -0.43 54700 0.13 -0.42 54701 0.13 -0.41 54702 0.16 -0.38 54703 0.19 -0.43 54704 0.19 -0.45 54705 0.17 -0.40 54706 0.17 -0.32 54707 0.14 -0.23 54708 0.12 -0.21 54709 0.12 -0.19 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.