********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 16 October 2008 Vol. XXI No. 042 ______________________________________________________________________ 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 10 54749 .24235 .00009 .19779 .00009 -.497418 .000012 8 10 11 54750 .23968 .00009 .19468 .00009 -.498550 .000017 8 10 12 54751 .23711 .00009 .19172 .00009 -.499917 .000016 8 10 13 54752 .23475 .00009 .18912 .00009 -.501443 .000016 8 10 14 54753 .23245 .00009 .18681 .00009 -.503047 .000015 8 10 15 54754 .22979 .00009 .18468 .00009 -.504579 .000048 8 10 16 54755 .22708 .00009 .18244 .00009 -.505973 .000057 _______________________________________________________________________ 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 = .0679 + .1052 cos A - .0471 sin A + .0560 cos C - .1279 sin C y = .3417 - .0327 cos A - .0977 sin A - .1279 cos C - .0560 sin C UT1-UTC = -.5459 - .00088 (MJD - 54763) - (UT2-UT1) where A = 2*pi*(MJD-54755)/365.25 and C = 2*pi*(MJD-54755)/435. TAI-UTC(MJD 54756) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54755)**0.80 S t = 0.00025 (MJD-54755)**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 17 54756 0.2242 0.1802 -0.50719 2008 10 18 54757 0.2214 0.1780 -0.50822 2008 10 19 54758 0.2185 0.1756 -0.50914 2008 10 20 54759 0.2155 0.1733 -0.51006 2008 10 21 54760 0.2126 0.1710 -0.51109 2008 10 22 54761 0.2095 0.1688 -0.51231 2008 10 23 54762 0.2065 0.1666 -0.51373 2008 10 24 54763 0.2034 0.1645 -0.51533 2008 10 25 54764 0.2003 0.1624 -0.51704 2008 10 26 54765 0.1971 0.1604 -0.51877 2008 10 27 54766 0.1939 0.1584 -0.52043 2008 10 28 54767 0.1907 0.1565 -0.52193 2008 10 29 54768 0.1874 0.1546 -0.52319 2008 10 30 54769 0.1841 0.1527 -0.52420 2008 10 31 54770 0.1807 0.1509 -0.52500 2008 11 1 54771 0.1773 0.1491 -0.52564 2008 11 2 54772 0.1739 0.1474 -0.52619 2008 11 3 54773 0.1705 0.1458 -0.52674 2008 11 4 54774 0.1670 0.1441 -0.52738 2008 11 5 54775 0.1635 0.1426 -0.52817 2008 11 6 54776 0.1600 0.1411 -0.52916 2008 11 7 54777 0.1564 0.1396 -0.53037 2008 11 8 54778 0.1528 0.1382 -0.53178 2008 11 9 54779 0.1492 0.1369 -0.53337 2008 11 10 54780 0.1456 0.1356 -0.53507 2008 11 11 54781 0.1419 0.1343 -0.53677 2008 11 12 54782 0.1383 0.1331 -0.53837 2008 11 13 54783 0.1346 0.1320 -0.53976 2008 11 14 54784 0.1309 0.1309 -0.54091 2008 11 15 54785 0.1272 0.1299 -0.54188 2008 11 16 54786 0.1234 0.1289 -0.54278 2008 11 17 54787 0.1197 0.1280 -0.54374 2008 11 18 54788 0.1159 0.1272 -0.54488 2008 11 19 54789 0.1121 0.1264 -0.54623 2008 11 20 54790 0.1083 0.1256 -0.54776 2008 11 21 54791 0.1045 0.1249 -0.54939 2008 11 22 54792 0.1007 0.1243 -0.55103 2008 11 23 54793 0.0969 0.1238 -0.55258 2008 11 24 54794 0.0930 0.1232 -0.55399 2008 11 25 54795 0.0892 0.1228 -0.55521 2008 11 26 54796 0.0853 0.1224 -0.55623 2008 11 27 54797 0.0815 0.1221 -0.55705 2008 11 28 54798 0.0776 0.1218 -0.55773 2008 11 29 54799 0.0737 0.1216 -0.55832 2008 11 30 54800 0.0699 0.1214 -0.55890 2008 12 1 54801 0.0660 0.1213 -0.55954 2008 12 2 54802 0.0621 0.1213 -0.56031 2008 12 3 54803 0.0583 0.1213 -0.56123 2008 12 4 54804 0.0544 0.1214 -0.56235 2008 12 5 54805 0.0505 0.1215 -0.56365 2008 12 6 54806 0.0467 0.1217 -0.56511 2008 12 7 54807 0.0428 0.1219 -0.56669 2008 12 8 54808 0.0390 0.1222 -0.56829 2008 12 9 54809 0.0351 0.1226 -0.56982 2008 12 10 54810 0.0313 0.1230 -0.57117 2008 12 11 54811 0.0274 0.1235 -0.57230 2008 12 12 54812 0.0236 0.1240 -0.57321 2008 12 13 54813 0.0198 0.1246 -0.57401 2008 12 14 54814 0.0160 0.1253 -0.57484 2008 12 15 54815 0.0122 0.1260 -0.57581 2008 12 16 54816 0.0084 0.1268 -0.57701 2008 12 17 54817 0.0047 0.1276 -0.57844 2008 12 18 54818 0.0009 0.1285 -0.58000 2008 12 19 54819 -0.0028 0.1294 -0.58159 2008 12 20 54820 -0.0065 0.1304 -0.58311 2008 12 21 54821 -0.0102 0.1315 -0.58448 2008 12 22 54822 -0.0139 0.1326 -0.58566 2008 12 23 54823 -0.0176 0.1338 -0.58664 2008 12 24 54824 -0.0212 0.1350 -0.58744 2008 12 25 54825 -0.0248 0.1363 -0.58807 2008 12 26 54826 -0.0284 0.1376 -0.58861 2008 12 27 54827 -0.0320 0.1390 -0.58912 2008 12 28 54828 -0.0355 0.1404 -0.58968 2008 12 29 54829 -0.0390 0.1419 -0.59033 2008 12 30 54830 -0.0425 0.1435 -0.59114 2008 12 31 54831 -0.0460 0.1451 -0.59213 2009 1 1 54832 -0.0494 0.1467 0.40671 2009 1 2 54833 -0.0529 0.1484 0.40540 2009 1 3 54834 -0.0562 0.1502 0.40398 2009 1 4 54835 -0.0596 0.1520 0.40254 2009 1 5 54836 -0.0629 0.1539 0.40114 2009 1 6 54837 -0.0662 0.1558 0.39990 2009 1 7 54838 -0.0694 0.1577 0.39885 2009 1 8 54839 -0.0727 0.1598 0.39800 2009 1 9 54840 -0.0758 0.1618 0.39730 2009 1 10 54841 -0.0790 0.1639 0.39661 2009 1 11 54842 -0.0821 0.1661 0.39580 2009 1 12 54843 -0.0852 0.1683 0.39476 2009 1 13 54844 -0.0882 0.1705 0.39346 2009 1 14 54845 -0.0912 0.1728 0.39194 2009 1 15 54846 -0.0942 0.1752 0.39033 2009 1 16 54847 -0.0971 0.1775 0.38875 2009 1 17 54848 -0.1000 0.1800 0.38732 2009 1 18 54849 -0.1028 0.1825 0.38609 2009 1 19 54850 -0.1056 0.1850 0.38508 2009 1 20 54851 -0.1084 0.1875 0.38428 2009 1 21 54852 -0.1111 0.1901 0.38365 2009 1 22 54853 -0.1137 0.1928 0.38313 2009 1 23 54854 -0.1164 0.1955 0.38266 2009 1 24 54855 -0.1189 0.1982 0.38217 2009 1 25 54856 -0.1215 0.2009 0.38157 2009 1 26 54857 -0.1239 0.2037 0.38084 2009 1 27 54858 -0.1264 0.2066 0.37992 2009 1 28 54859 -0.1288 0.2094 0.37881 2009 1 29 54860 -0.1311 0.2124 0.37755 2009 1 30 54861 -0.1334 0.2153 0.37619 2009 1 31 54862 -0.1356 0.2183 0.37479 2009 2 1 54863 -0.1378 0.2213 0.37343 2009 2 2 54864 -0.1399 0.2243 0.37219 2009 2 3 54865 -0.1420 0.2274 0.37113 2009 2 4 54866 -0.1441 0.2305 0.37025 2009 2 5 54867 -0.1460 0.2337 0.36953 2009 2 6 54868 -0.1480 0.2369 0.36885 2009 2 7 54869 -0.1498 0.2401 0.36809 2009 2 8 54870 -0.1517 0.2433 0.36713 2009 2 9 54871 -0.1534 0.2465 0.36590 2009 2 10 54872 -0.1551 0.2498 0.36441 2009 2 11 54873 -0.1568 0.2531 0.36274 2009 2 12 54874 -0.1584 0.2565 0.36103 2009 2 13 54875 -0.1599 0.2598 0.35941 2009 2 14 54876 -0.1614 0.2632 0.35797 2009 2 15 54877 -0.1628 0.2666 0.35675 2009 2 16 54878 -0.1642 0.2701 0.35576 2009 2 17 54879 -0.1655 0.2735 0.35496 2009 2 18 54880 -0.1668 0.2770 0.35428 2009 2 19 54881 -0.1680 0.2805 0.35366 2009 2 20 54882 -0.1691 0.2840 0.35304 2009 2 21 54883 -0.1702 0.2875 0.35233 2009 2 22 54884 -0.1712 0.2910 0.35148 2009 2 23 54885 -0.1722 0.2946 0.35044 2009 2 24 54886 -0.1731 0.2982 0.34920 2009 2 25 54887 -0.1739 0.3018 0.34777 2009 2 26 54888 -0.1747 0.3053 0.34620 2009 2 27 54889 -0.1754 0.3090 0.34455 2009 2 28 54890 -0.1761 0.3126 0.34294 2009 3 1 54891 -0.1767 0.3162 0.34143 2009 3 2 54892 -0.1772 0.3198 0.34011 2009 3 3 54893 -0.1777 0.3235 0.33898 2009 3 4 54894 -0.1781 0.3272 0.33803 2009 3 5 54895 -0.1785 0.3308 0.33715 2009 3 6 54896 -0.1788 0.3345 0.33624 2009 3 7 54897 -0.1790 0.3382 0.33518 2009 3 8 54898 -0.1792 0.3418 0.33388 2009 3 9 54899 -0.1793 0.3455 0.33232 2009 3 10 54900 -0.1793 0.3492 0.33053 2009 3 11 54901 -0.1793 0.3529 0.32864 2009 3 12 54902 -0.1792 0.3566 0.32677 2009 3 13 54903 -0.1791 0.3602 0.32505 2009 3 14 54904 -0.1789 0.3639 0.32353 2009 3 15 54905 -0.1787 0.3676 0.32225 2009 3 16 54906 -0.1783 0.3713 0.32119 2009 3 17 54907 -0.1780 0.3749 0.32029 2009 3 18 54908 -0.1775 0.3786 0.31948 2009 3 19 54909 -0.1770 0.3822 0.31870 2009 3 20 54910 -0.1765 0.3859 0.31786 2009 3 21 54911 -0.1759 0.3895 0.31691 2009 3 22 54912 -0.1752 0.3932 0.31580 2009 3 23 54913 -0.1744 0.3968 0.31448 2009 3 24 54914 -0.1737 0.4004 0.31298 2009 3 25 54915 -0.1728 0.4040 0.31131 2009 3 26 54916 -0.1719 0.4076 0.30953 2009 3 27 54917 -0.1709 0.4111 0.30775 2009 3 28 54918 -0.1699 0.4147 0.30605 2009 3 29 54919 -0.1688 0.4182 0.30453 2009 3 30 54920 -0.1676 0.4218 0.30323 2009 3 31 54921 -0.1664 0.4253 0.30212 2009 4 1 54922 -0.1652 0.4288 0.30113 2009 4 2 54923 -0.1638 0.4322 0.30015 2009 4 3 54924 -0.1625 0.4357 0.29906 2009 4 4 54925 -0.1610 0.4391 0.29777 2009 4 5 54926 -0.1595 0.4425 0.29625 2009 4 6 54927 -0.1580 0.4459 0.29450 2009 4 7 54928 -0.1564 0.4493 0.29262 2009 4 8 54929 -0.1547 0.4526 0.29070 2009 4 9 54930 -0.1530 0.4559 0.28887 2009 4 10 54931 -0.1512 0.4592 0.28721 2009 4 11 54932 -0.1494 0.4625 0.28576 2009 4 12 54933 -0.1476 0.4657 0.28452 2009 4 13 54934 -0.1456 0.4689 0.28346 2009 4 14 54935 -0.1437 0.4721 0.28250 2009 4 15 54936 -0.1416 0.4752 0.28157 2009 4 16 54937 -0.1396 0.4783 0.28060 2009 4 17 54938 -0.1374 0.4814 0.27950 2009 4 18 54939 -0.1353 0.4845 0.27823 2009 4 19 54940 -0.1330 0.4875 0.27675 2009 4 20 54941 -0.1308 0.4905 0.27503 2009 4 21 54942 -0.1284 0.4934 0.27310 2009 4 22 54943 -0.1261 0.4964 0.27100 2009 4 23 54944 -0.1236 0.4992 0.26883 2009 4 24 54945 -0.1212 0.5021 0.26669 2009 4 25 54946 -0.1187 0.5049 0.26470 2009 4 26 54947 -0.1161 0.5077 0.26296 2009 4 27 54948 -0.1135 0.5104 0.26150 2009 4 28 54949 -0.1109 0.5131 0.26026 2009 4 29 54950 -0.1082 0.5157 0.25915 2009 4 30 54951 -0.1055 0.5183 0.25805 2009 5 1 54952 -0.1027 0.5209 0.25687 2009 5 2 54953 -0.0999 0.5234 0.25555 2009 5 3 54954 -0.0971 0.5259 0.25413 2009 5 4 54955 -0.0942 0.5284 0.25268 2009 5 5 54956 -0.0912 0.5308 0.25127 2009 5 6 54957 -0.0883 0.5331 0.25002 2009 5 7 54958 -0.0853 0.5354 0.24898 2009 5 8 54959 -0.0822 0.5377 0.24821 2009 5 9 54960 -0.0792 0.5399 0.24770 2009 5 10 54961 -0.0761 0.5421 0.24742 2009 5 11 54962 -0.0729 0.5442 0.24731 2009 5 12 54963 -0.0698 0.5463 0.24727 2009 5 13 54964 -0.0666 0.5483 0.24722 2009 5 14 54965 -0.0633 0.5503 0.24709 2009 5 15 54966 -0.0601 0.5523 0.24682 2009 5 16 54967 -0.0568 0.5541 0.24640 2009 5 17 54968 -0.0534 0.5560 0.24583 2009 5 18 54969 -0.0501 0.5578 0.24511 2009 5 19 54970 -0.0467 0.5595 0.24426 2009 5 20 54971 -0.0433 0.5612 0.24334 2009 5 21 54972 -0.0399 0.5628 0.24243 2009 5 22 54973 -0.0364 0.5644 0.24161 2009 5 23 54974 -0.0329 0.5659 0.24094 2009 5 24 54975 -0.0294 0.5674 0.24046 2009 5 25 54976 -0.0259 0.5688 0.24015 2009 5 26 54977 -0.0224 0.5702 0.23996 2009 5 27 54978 -0.0188 0.5715 0.23980 2009 5 28 54979 -0.0152 0.5728 0.23957 2009 5 29 54980 -0.0116 0.5740 0.23919 2009 5 30 54981 -0.0080 0.5752 0.23869 2009 5 31 54982 -0.0044 0.5763 0.23807 2009 6 1 54983 -0.0007 0.5773 0.23746 2009 6 2 54984 0.0029 0.5783 0.23699 2009 6 3 54985 0.0066 0.5792 0.23669 2009 6 4 54986 0.0103 0.5801 0.23660 2009 6 5 54987 0.0140 0.5809 0.23676 2009 6 6 54988 0.0177 0.5817 0.23711 2009 6 7 54989 0.0214 0.5824 0.23761 2009 6 8 54990 0.0251 0.5831 0.23822 2009 6 9 54991 0.0289 0.5837 0.23887 2009 6 10 54992 0.0326 0.5842 0.23948 2009 6 11 54993 0.0364 0.5847 0.23997 2009 6 12 54994 0.0401 0.5852 0.24034 2009 6 13 54995 0.0439 0.5855 0.24056 2009 6 14 54996 0.0476 0.5858 0.24063 2009 6 15 54997 0.0514 0.5861 0.24060 2009 6 16 54998 0.0552 0.5863 0.24052 2009 6 17 54999 0.0589 0.5865 0.24041 2009 6 18 55000 0.0627 0.5866 0.24039 2009 6 19 55001 0.0664 0.5866 0.24052 2009 6 20 55002 0.0702 0.5866 0.24080 2009 6 21 55003 0.0740 0.5865 0.24123 2009 6 22 55004 0.0777 0.5864 0.24174 2009 6 23 55005 0.0814 0.5862 0.24223 2009 6 24 55006 0.0852 0.5859 0.24259 2009 6 25 55007 0.0889 0.5856 0.24275 2009 6 26 55008 0.0926 0.5853 0.24265 2009 6 27 55009 0.0963 0.5848 0.24232 2009 6 28 55010 0.1000 0.5844 0.24188 2009 6 29 55011 0.1037 0.5838 0.24148 2009 6 30 55012 0.1074 0.5833 0.24126 2009 7 1 55013 0.1111 0.5826 0.24127 2009 7 2 55014 0.1147 0.5819 0.24145 2009 7 3 55015 0.1184 0.5812 0.24175 2009 7 4 55016 0.1220 0.5804 0.24215 2009 7 5 55017 0.1256 0.5795 0.24265 2009 7 6 55018 0.1292 0.5786 0.24323 2009 7 7 55019 0.1327 0.5776 0.24377 2009 7 8 55020 0.1363 0.5766 0.24426 2009 7 9 55021 0.1398 0.5756 0.24465 2009 7 10 55022 0.1433 0.5744 0.24484 2009 7 11 55023 0.1468 0.5732 0.24482 2009 7 12 55024 0.1503 0.5720 0.24464 2009 7 13 55025 0.1537 0.5707 0.24435 2009 7 14 55026 0.1571 0.5694 0.24403 2009 7 15 55027 0.1605 0.5680 0.24375 2009 7 16 55028 0.1639 0.5666 0.24355 2009 7 17 55029 0.1672 0.5651 0.24350 2009 7 18 55030 0.1705 0.5636 0.24365 2009 7 19 55031 0.1738 0.5620 0.24393 2009 7 20 55032 0.1770 0.5603 0.24419 2009 7 21 55033 0.1802 0.5586 0.24433 2009 7 22 55034 0.1834 0.5569 0.24428 2009 7 23 55035 0.1866 0.5551 0.24398 2009 7 24 55036 0.1897 0.5533 0.24347 2009 7 25 55037 0.1928 0.5514 0.24287 2009 7 26 55038 0.1958 0.5495 0.24231 2009 7 27 55039 0.1989 0.5475 0.24192 2009 7 28 55040 0.2018 0.5455 0.24178 2009 7 29 55041 0.2048 0.5435 0.24191 2009 7 30 55042 0.2077 0.5414 0.24227 2009 7 31 55043 0.2106 0.5392 0.24280 2009 8 1 55044 0.2134 0.5370 0.24343 2009 8 2 55045 0.2162 0.5348 0.24406 2009 8 3 55046 0.2190 0.5325 0.24466 2009 8 4 55047 0.2217 0.5302 0.24522 2009 8 5 55048 0.2243 0.5278 0.24566 2009 8 6 55049 0.2270 0.5255 0.24591 2009 8 7 55050 0.2296 0.5230 0.24598 2009 8 8 55051 0.2321 0.5205 0.24587 2009 8 9 55052 0.2346 0.5180 0.24557 2009 8 10 55053 0.2371 0.5155 0.24517 2009 8 11 55054 0.2395 0.5129 0.24474 2009 8 12 55055 0.2418 0.5103 0.24433 2009 8 13 55056 0.2442 0.5076 0.24405 2009 8 14 55057 0.2464 0.5049 0.24396 2009 8 15 55058 0.2487 0.5022 0.24407 2009 8 16 55059 0.2508 0.4994 0.24431 2009 8 17 55060 0.2530 0.4966 0.24456 2009 8 18 55061 0.2550 0.4938 0.24467 2009 8 19 55062 0.2571 0.4910 0.24449 2009 8 20 55063 0.2591 0.4881 0.24402 2009 8 21 55064 0.2610 0.4852 0.24340 2009 8 22 55065 0.2629 0.4822 0.24269 2009 8 23 55066 0.2647 0.4792 0.24201 2009 8 24 55067 0.2665 0.4762 0.24146 2009 8 25 55068 0.2682 0.4732 0.24113 2009 8 26 55069 0.2699 0.4702 0.24104 2009 8 27 55070 0.2715 0.4671 0.24119 2009 8 28 55071 0.2731 0.4640 0.24146 2009 8 29 55072 0.2746 0.4609 0.24175 2009 8 30 55073 0.2761 0.4577 0.24211 2009 8 31 55074 0.2775 0.4546 0.24249 2009 9 1 55075 0.2788 0.4514 0.24275 2009 9 2 55076 0.2801 0.4482 0.24284 2009 9 3 55077 0.2814 0.4449 0.24279 2009 9 4 55078 0.2826 0.4417 0.24258 2009 9 5 55079 0.2837 0.4384 0.24223 2009 9 6 55080 0.2848 0.4351 0.24177 2009 9 7 55081 0.2858 0.4318 0.24132 2009 9 8 55082 0.2868 0.4285 0.24096 2009 9 9 55083 0.2877 0.4252 0.24070 2009 9 10 55084 0.2886 0.4219 0.24055 2009 9 11 55085 0.2894 0.4185 0.24047 2009 9 12 55086 0.2901 0.4151 0.24039 2009 9 13 55087 0.2908 0.4118 0.24022 2009 9 14 55088 0.2914 0.4084 0.23984 2009 9 15 55089 0.2920 0.4050 0.23915 2009 9 16 55090 0.2925 0.4016 0.23815 2009 9 17 55091 0.2930 0.3982 0.23689 2009 9 18 55092 0.2934 0.3948 0.23545 2009 9 19 55093 0.2937 0.3913 0.23400 2009 9 20 55094 0.2940 0.3879 0.23266 2009 9 21 55095 0.2943 0.3845 0.23150 2009 9 22 55096 0.2944 0.3810 0.23056 2009 9 23 55097 0.2945 0.3776 0.22981 2009 9 24 55098 0.2946 0.3742 0.22919 2009 9 25 55099 0.2946 0.3707 0.22864 2009 9 26 55100 0.2945 0.3673 0.22814 2009 9 27 55101 0.2944 0.3639 0.22763 2009 9 28 55102 0.2943 0.3604 0.22709 2009 9 29 55103 0.2940 0.3570 0.22645 2009 9 30 55104 0.2938 0.3536 0.22569 2009 10 1 55105 0.2934 0.3502 0.22480 2009 10 2 55106 0.2930 0.3467 0.22380 2009 10 3 55107 0.2926 0.3433 0.22276 2009 10 4 55108 0.2921 0.3399 0.22181 2009 10 5 55109 0.2915 0.3365 0.22096 2009 10 6 55110 0.2909 0.3331 0.22026 2009 10 7 55111 0.2902 0.3298 0.21971 2009 10 8 55112 0.2895 0.3264 0.21931 2009 10 9 55113 0.2887 0.3230 0.21900 2009 10 10 55114 0.2879 0.3197 0.21871 2009 10 11 55115 0.2870 0.3164 0.21839 2009 10 12 55116 0.2860 0.3131 0.21799 2009 10 13 55117 0.2850 0.3098 0.21741 2009 10 14 55118 0.2839 0.3065 0.21659 2009 10 15 55119 0.2828 0.3032 0.21553 2009 10 16 55120 0.2817 0.3000 0.21439 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) 54736 -69.01 .29 -7.22 .13 54737 -68.94 .25 -6.94 .12 54738 -69.01 .25 -6.68 .12 54739 -69.24 .20 -6.59 .12 54740 -69.60 .21 -6.69 .11 54741 -69.97 .21 -6.91 .11 54742 -70.16 .21 -7.08 .11 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54736 0.008 0.115 -0.410 0.130 54737 -0.005 0.099 -0.403 0.120 54738 -0.022 0.099 -0.391 0.120 54739 -0.042 0.080 -0.382 0.120 54740 -0.059 0.084 -0.357 0.110 54741 -0.067 0.084 -0.353 0.110 54742 -0.069 0.084 -0.370 0.110 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.