********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 13 November 2008 Vol. XXI No. 046 ______________________________________________________________________ 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 = -0.5 seconds beginning 07 August 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 11 7 54777 .16381 .00009 .14470 .00009 -.530188 .000008 8 11 8 54778 .16094 .00009 .14383 .00009 -.531433 .000008 8 11 9 54779 .15769 .00009 .14297 .00009 -.532883 .000011 8 11 10 54780 .15405 .00009 .14216 .00009 -.534507 .000014 8 11 11 54781 .15031 .00009 .14113 .00009 -.536172 .000015 8 11 12 54782 .14668 .00009 .14022 .00009 -.537728 .000048 8 11 13 54783 .14258 .00009 .13922 .00010 -.539040 .000057 IERS Final Values MJD x y UT1-UTC " " s 8 9 1 54710 .2987 .3186 -.46533 8 9 2 54711 .2989 .3147 -.46636 8 9 3 54712 .2992 .3109 -.46726 8 9 4 54713 .2991 .3073 -.46797 8 9 5 54714 .2987 .3036 -.46847 8 9 6 54715 .2983 .3000 -.46877 8 9 7 54716 .2979 .2965 -.46897 8 9 8 54717 .2975 .2931 -.46907 8 9 9 54718 .2973 .2898 -.46921 8 9 10 54719 .2969 .2867 -.46948 8 9 11 54720 .2965 .2838 -.46986 8 9 12 54721 .2958 .2808 -.47048 8 9 13 54722 .2945 .2778 -.47141 8 9 14 54723 .2928 .2746 -.47263 8 9 15 54724 .2915 .2713 -.47410 8 9 16 54725 .2905 .2682 -.47570 8 9 17 54726 .2894 .2651 -.47735 8 9 18 54727 .2879 .2617 -.47881 8 9 19 54728 .2860 .2582 -.48001 8 9 20 54729 .2842 .2547 -.48100 8 9 21 54730 .2822 .2513 -.48168 8 9 22 54731 .2802 .2479 -.48226 8 9 23 54732 .2783 .2444 -.48286 8 9 24 54733 .2765 .2410 -.48355 8 9 25 54734 .2747 .2377 -.48429 8 9 26 54735 .2730 .2345 -.48536 8 9 27 54736 .2713 .2311 -.48662 8 9 28 54737 .2698 .2280 -.48797 8 9 29 54738 .2683 .2254 -.48941 8 9 30 54739 .2665 .2229 -.49078 8 10 1 54740 .2646 .2203 -.49200 8 10 2 54741 .2625 .2177 -.49300 8 10 3 54742 .2598 .2150 -.49374 8 10 4 54743 .2568 .2124 -.49430 8 10 5 54744 .2543 .2098 -.49467 _______________________________________________________________________ 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 = .0654 + .0730 cos A - .0795 sin A + .0054 cos C - .1490 sin C y = .3489 - .0649 cos A - .0720 sin A - .1490 cos C - .0054 sin C UT1-UTC = -.5634 - .00090 (MJD - 54791) - (UT2-UT1) where A = 2*pi*(MJD-54783)/365.25 and C = 2*pi*(MJD-54783)/435. TAI-UTC(MJD 54784) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54783)**0.80 S t = 0.00025 (MJD-54783)**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 11 14 54784 0.1389 0.1382 -0.54003 2008 11 15 54785 0.1348 0.1370 -0.54083 2008 11 16 54786 0.1309 0.1358 -0.54160 2008 11 17 54787 0.1271 0.1348 -0.54250 2008 11 18 54788 0.1233 0.1338 -0.54360 2008 11 19 54789 0.1196 0.1329 -0.54493 2008 11 20 54790 0.1158 0.1321 -0.54647 2008 11 21 54791 0.1121 0.1314 -0.54812 2008 11 22 54792 0.1083 0.1307 -0.54977 2008 11 23 54793 0.1046 0.1300 -0.55131 2008 11 24 54794 0.1008 0.1295 -0.55267 2008 11 25 54795 0.0971 0.1290 -0.55379 2008 11 26 54796 0.0933 0.1285 -0.55470 2008 11 27 54797 0.0895 0.1281 -0.55542 2008 11 28 54798 0.0857 0.1278 -0.55594 2008 11 29 54799 0.0820 0.1275 -0.55635 2008 11 30 54800 0.0782 0.1273 -0.55673 2008 12 1 54801 0.0744 0.1271 -0.55718 2008 12 2 54802 0.0706 0.1270 -0.55776 2008 12 3 54803 0.0668 0.1270 -0.55853 2008 12 4 54804 0.0630 0.1270 -0.55949 2008 12 5 54805 0.0592 0.1271 -0.56065 2008 12 6 54806 0.0554 0.1272 -0.56197 2008 12 7 54807 0.0517 0.1274 -0.56342 2008 12 8 54808 0.0479 0.1276 -0.56490 2008 12 9 54809 0.0441 0.1279 -0.56630 2008 12 10 54810 0.0403 0.1283 -0.56752 2008 12 11 54811 0.0366 0.1287 -0.56849 2008 12 12 54812 0.0328 0.1292 -0.56923 2008 12 13 54813 0.0291 0.1297 -0.56985 2008 12 14 54814 0.0253 0.1303 -0.57048 2008 12 15 54815 0.0216 0.1309 -0.57125 2008 12 16 54816 0.0179 0.1316 -0.57224 2008 12 17 54817 0.0142 0.1324 -0.57346 2008 12 18 54818 0.0105 0.1332 -0.57481 2008 12 19 54819 0.0068 0.1340 -0.57620 2008 12 20 54820 0.0032 0.1350 -0.57750 2008 12 21 54821 -0.0004 0.1359 -0.57865 2008 12 22 54822 -0.0041 0.1370 -0.57961 2008 12 23 54823 -0.0077 0.1381 -0.58038 2008 12 24 54824 -0.0113 0.1392 -0.58098 2008 12 25 54825 -0.0148 0.1404 -0.58144 2008 12 26 54826 -0.0184 0.1416 -0.58181 2008 12 27 54827 -0.0219 0.1429 -0.58216 2008 12 28 54828 -0.0254 0.1443 -0.58255 2008 12 29 54829 -0.0289 0.1457 -0.58305 2008 12 30 54830 -0.0323 0.1472 -0.58371 2008 12 31 54831 -0.0358 0.1487 -0.58454 2009 1 1 54832 -0.0392 0.1502 0.41444 2009 1 2 54833 -0.0425 0.1519 0.41327 2009 1 3 54834 -0.0459 0.1535 0.41200 2009 1 4 54835 -0.0492 0.1552 0.41069 2009 1 5 54836 -0.0525 0.1570 0.40944 2009 1 6 54837 -0.0557 0.1588 0.40832 2009 1 7 54838 -0.0590 0.1607 0.40739 2009 1 8 54839 -0.0622 0.1626 0.40667 2009 1 9 54840 -0.0653 0.1646 0.40608 2009 1 10 54841 -0.0684 0.1666 0.40551 2009 1 11 54842 -0.0715 0.1686 0.40480 2009 1 12 54843 -0.0746 0.1708 0.40387 2009 1 13 54844 -0.0776 0.1729 0.40266 2009 1 14 54845 -0.0806 0.1751 0.40125 2009 1 15 54846 -0.0835 0.1773 0.39974 2009 1 16 54847 -0.0865 0.1796 0.39826 2009 1 17 54848 -0.0893 0.1820 0.39692 2009 1 18 54849 -0.0922 0.1843 0.39577 2009 1 19 54850 -0.0949 0.1868 0.39483 2009 1 20 54851 -0.0977 0.1892 0.39409 2009 1 21 54852 -0.1004 0.1917 0.39351 2009 1 22 54853 -0.1031 0.1943 0.39304 2009 1 23 54854 -0.1057 0.1968 0.39260 2009 1 24 54855 -0.1083 0.1995 0.39212 2009 1 25 54856 -0.1108 0.2021 0.39155 2009 1 26 54857 -0.1133 0.2048 0.39082 2009 1 27 54858 -0.1157 0.2076 0.38990 2009 1 28 54859 -0.1181 0.2103 0.38878 2009 1 29 54860 -0.1205 0.2131 0.38748 2009 1 30 54861 -0.1228 0.2160 0.38607 2009 1 31 54862 -0.1250 0.2189 0.38460 2009 2 1 54863 -0.1272 0.2218 0.38316 2009 2 2 54864 -0.1294 0.2247 0.38184 2009 2 3 54865 -0.1315 0.2277 0.38068 2009 2 4 54866 -0.1335 0.2307 0.37971 2009 2 5 54867 -0.1356 0.2337 0.37888 2009 2 6 54868 -0.1375 0.2368 0.37810 2009 2 7 54869 -0.1394 0.2399 0.37724 2009 2 8 54870 -0.1413 0.2430 0.37617 2009 2 9 54871 -0.1431 0.2462 0.37483 2009 2 10 54872 -0.1448 0.2494 0.37323 2009 2 11 54873 -0.1465 0.2526 0.37145 2009 2 12 54874 -0.1481 0.2558 0.36963 2009 2 13 54875 -0.1497 0.2591 0.36790 2009 2 14 54876 -0.1512 0.2624 0.36636 2009 2 15 54877 -0.1527 0.2657 0.36504 2009 2 16 54878 -0.1541 0.2690 0.36394 2009 2 17 54879 -0.1555 0.2723 0.36303 2009 2 18 54880 -0.1568 0.2757 0.36226 2009 2 19 54881 -0.1580 0.2791 0.36155 2009 2 20 54882 -0.1592 0.2825 0.36083 2009 2 21 54883 -0.1604 0.2859 0.36003 2009 2 22 54884 -0.1614 0.2894 0.35908 2009 2 23 54885 -0.1625 0.2928 0.35794 2009 2 24 54886 -0.1634 0.2963 0.35659 2009 2 25 54887 -0.1643 0.2998 0.35505 2009 2 26 54888 -0.1651 0.3033 0.35335 2009 2 27 54889 -0.1659 0.3068 0.35159 2009 2 28 54890 -0.1667 0.3103 0.34985 2009 3 1 54891 -0.1673 0.3139 0.34822 2009 3 2 54892 -0.1679 0.3174 0.34682 2009 3 3 54893 -0.1685 0.3210 0.34563 2009 3 4 54894 -0.1690 0.3246 0.34459 2009 3 5 54895 -0.1694 0.3281 0.34364 2009 3 6 54896 -0.1698 0.3317 0.34265 2009 3 7 54897 -0.1701 0.3353 0.34151 2009 3 8 54898 -0.1703 0.3389 0.34012 2009 3 9 54899 -0.1705 0.3425 0.33847 2009 3 10 54900 -0.1706 0.3461 0.33660 2009 3 11 54901 -0.1707 0.3497 0.33461 2009 3 12 54902 -0.1707 0.3533 0.33265 2009 3 13 54903 -0.1707 0.3569 0.33082 2009 3 14 54904 -0.1706 0.3604 0.32920 2009 3 15 54905 -0.1704 0.3640 0.32782 2009 3 16 54906 -0.1702 0.3676 0.32664 2009 3 17 54907 -0.1699 0.3712 0.32563 2009 3 18 54908 -0.1695 0.3748 0.32471 2009 3 19 54909 -0.1691 0.3784 0.32381 2009 3 20 54910 -0.1687 0.3820 0.32287 2009 3 21 54911 -0.1681 0.3855 0.32181 2009 3 22 54912 -0.1676 0.3891 0.32058 2009 3 23 54913 -0.1669 0.3926 0.31916 2009 3 24 54914 -0.1662 0.3962 0.31755 2009 3 25 54915 -0.1655 0.3997 0.31577 2009 3 26 54916 -0.1646 0.4032 0.31390 2009 3 27 54917 -0.1638 0.4067 0.31202 2009 3 28 54918 -0.1628 0.4102 0.31023 2009 3 29 54919 -0.1619 0.4137 0.30862 2009 3 30 54920 -0.1608 0.4171 0.30722 2009 3 31 54921 -0.1597 0.4206 0.30602 2009 4 1 54922 -0.1586 0.4240 0.30495 2009 4 2 54923 -0.1573 0.4274 0.30389 2009 4 3 54924 -0.1561 0.4308 0.30273 2009 4 4 54925 -0.1548 0.4342 0.30137 2009 4 5 54926 -0.1534 0.4375 0.29978 2009 4 6 54927 -0.1519 0.4408 0.29798 2009 4 7 54928 -0.1504 0.4442 0.29605 2009 4 8 54929 -0.1489 0.4474 0.29410 2009 4 9 54930 -0.1473 0.4507 0.29224 2009 4 10 54931 -0.1457 0.4539 0.29056 2009 4 11 54932 -0.1440 0.4571 0.28912 2009 4 12 54933 -0.1422 0.4603 0.28790 2009 4 13 54934 -0.1404 0.4635 0.28687 2009 4 14 54935 -0.1385 0.4666 0.28597 2009 4 15 54936 -0.1366 0.4697 0.28514 2009 4 16 54937 -0.1347 0.4728 0.28428 2009 4 17 54938 -0.1327 0.4759 0.28335 2009 4 18 54939 -0.1306 0.4789 0.28229 2009 4 19 54940 -0.1285 0.4818 0.28106 2009 4 20 54941 -0.1264 0.4848 0.27966 2009 4 21 54942 -0.1242 0.4877 0.27809 2009 4 22 54943 -0.1219 0.4906 0.27641 2009 4 23 54944 -0.1196 0.4935 0.27469 2009 4 24 54945 -0.1173 0.4963 0.27302 2009 4 25 54946 -0.1149 0.4991 0.27150 2009 4 26 54947 -0.1125 0.5018 0.27021 2009 4 27 54948 -0.1100 0.5045 0.26914 2009 4 28 54949 -0.1075 0.5072 0.26823 2009 4 29 54950 -0.1049 0.5098 0.26739 2009 4 30 54951 -0.1023 0.5124 0.26649 2009 5 1 54952 -0.0997 0.5150 0.26542 2009 5 2 54953 -0.0970 0.5175 0.26415 2009 5 3 54954 -0.0943 0.5199 0.26268 2009 5 4 54955 -0.0915 0.5224 0.26110 2009 5 5 54956 -0.0887 0.5248 0.25949 2009 5 6 54957 -0.0859 0.5271 0.25795 2009 5 7 54958 -0.0830 0.5294 0.25657 2009 5 8 54959 -0.0801 0.5317 0.25540 2009 5 9 54960 -0.0772 0.5339 0.25446 2009 5 10 54961 -0.0742 0.5361 0.25371 2009 5 11 54962 -0.0712 0.5382 0.25309 2009 5 12 54963 -0.0681 0.5403 0.25255 2009 5 13 54964 -0.0651 0.5423 0.25199 2009 5 14 54965 -0.0620 0.5443 0.25134 2009 5 15 54966 -0.0588 0.5462 0.25054 2009 5 16 54967 -0.0556 0.5481 0.24956 2009 5 17 54968 -0.0524 0.5500 0.24836 2009 5 18 54969 -0.0492 0.5518 0.24694 2009 5 19 54970 -0.0460 0.5535 0.24535 2009 5 20 54971 -0.0427 0.5552 0.24363 2009 5 21 54972 -0.0394 0.5569 0.24188 2009 5 22 54973 -0.0360 0.5585 0.24022 2009 5 23 54974 -0.0327 0.5600 0.23874 2009 5 24 54975 -0.0293 0.5615 0.23752 2009 5 25 54976 -0.0259 0.5630 0.23656 2009 5 26 54977 -0.0225 0.5644 0.23576 2009 5 27 54978 -0.0190 0.5657 0.23501 2009 5 28 54979 -0.0156 0.5670 0.23418 2009 5 29 54980 -0.0121 0.5683 0.23320 2009 5 30 54981 -0.0086 0.5695 0.23205 2009 5 31 54982 -0.0051 0.5706 0.23080 2009 6 1 54983 -0.0016 0.5717 0.22954 2009 6 2 54984 0.0020 0.5727 0.22836 2009 6 3 54985 0.0055 0.5737 0.22734 2009 6 4 54986 0.0091 0.5746 0.22652 2009 6 5 54987 0.0127 0.5755 0.22592 2009 6 6 54988 0.0163 0.5763 0.22553 2009 6 7 54989 0.0199 0.5771 0.22532 2009 6 8 54990 0.0235 0.5778 0.22524 2009 6 9 54991 0.0272 0.5784 0.22523 2009 6 10 54992 0.0308 0.5790 0.22522 2009 6 11 54993 0.0344 0.5795 0.22515 2009 6 12 54994 0.0381 0.5800 0.22498 2009 6 13 54995 0.0417 0.5805 0.22471 2009 6 14 54996 0.0454 0.5808 0.22434 2009 6 15 54997 0.0490 0.5812 0.22389 2009 6 16 54998 0.0527 0.5814 0.22341 2009 6 17 54999 0.0564 0.5816 0.22294 2009 6 18 55000 0.0600 0.5818 0.22256 2009 6 19 55001 0.0637 0.5819 0.22233 2009 6 20 55002 0.0674 0.5819 0.22229 2009 6 21 55003 0.0710 0.5819 0.22245 2009 6 22 55004 0.0747 0.5819 0.22276 2009 6 23 55005 0.0783 0.5818 0.22312 2009 6 24 55006 0.0820 0.5816 0.22341 2009 6 25 55007 0.0856 0.5814 0.22351 2009 6 26 55008 0.0893 0.5811 0.22342 2009 6 27 55009 0.0929 0.5807 0.22320 2009 6 28 55010 0.0965 0.5803 0.22294 2009 6 29 55011 0.1001 0.5799 0.22274 2009 6 30 55012 0.1037 0.5794 0.22275 2009 7 1 55013 0.1073 0.5788 0.22306 2009 7 2 55014 0.1109 0.5782 0.22362 2009 7 3 55015 0.1144 0.5776 0.22434 2009 7 4 55016 0.1180 0.5769 0.22517 2009 7 5 55017 0.1215 0.5761 0.22606 2009 7 6 55018 0.1250 0.5753 0.22695 2009 7 7 55019 0.1285 0.5744 0.22776 2009 7 8 55020 0.1320 0.5735 0.22841 2009 7 9 55021 0.1355 0.5725 0.22891 2009 7 10 55022 0.1389 0.5714 0.22933 2009 7 11 55023 0.1423 0.5704 0.22965 2009 7 12 55024 0.1457 0.5692 0.22979 2009 7 13 55025 0.1491 0.5680 0.22985 2009 7 14 55026 0.1525 0.5668 0.22985 2009 7 15 55027 0.1558 0.5655 0.22990 2009 7 16 55028 0.1591 0.5642 0.23006 2009 7 17 55029 0.1624 0.5628 0.23036 2009 7 18 55030 0.1656 0.5614 0.23078 2009 7 19 55031 0.1689 0.5599 0.23130 2009 7 20 55032 0.1721 0.5584 0.23183 2009 7 21 55033 0.1752 0.5568 0.23230 2009 7 22 55034 0.1784 0.5551 0.23261 2009 7 23 55035 0.1815 0.5535 0.23272 2009 7 24 55036 0.1846 0.5518 0.23263 2009 7 25 55037 0.1876 0.5500 0.23248 2009 7 26 55038 0.1907 0.5482 0.23232 2009 7 27 55039 0.1936 0.5463 0.23231 2009 7 28 55040 0.1966 0.5444 0.23258 2009 7 29 55041 0.1995 0.5425 0.23310 2009 7 30 55042 0.2024 0.5405 0.23384 2009 7 31 55043 0.2052 0.5385 0.23477 2009 8 1 55044 0.2081 0.5364 0.23580 2009 8 2 55045 0.2108 0.5343 0.23685 2009 8 3 55046 0.2136 0.5321 0.23788 2009 8 4 55047 0.2163 0.5299 0.23882 2009 8 5 55048 0.2189 0.5277 0.23962 2009 8 6 55049 0.2215 0.5254 0.24021 2009 8 7 55050 0.2241 0.5231 0.24064 2009 8 8 55051 0.2267 0.5207 0.24092 2009 8 9 55052 0.2292 0.5183 0.24108 2009 8 10 55053 0.2316 0.5159 0.24121 2009 8 11 55054 0.2340 0.5134 0.24139 2009 8 12 55055 0.2364 0.5109 0.24162 2009 8 13 55056 0.2387 0.5084 0.24201 2009 8 14 55057 0.2410 0.5058 0.24257 2009 8 15 55058 0.2432 0.5032 0.24322 2009 8 16 55059 0.2454 0.5006 0.24387 2009 8 17 55060 0.2476 0.4979 0.24442 2009 8 18 55061 0.2497 0.4952 0.24475 2009 8 19 55062 0.2517 0.4925 0.24480 2009 8 20 55063 0.2537 0.4897 0.24458 2009 8 21 55064 0.2557 0.4869 0.24410 2009 8 22 55065 0.2576 0.4841 0.24346 2009 8 23 55066 0.2594 0.4812 0.24282 2009 8 24 55067 0.2612 0.4784 0.24233 2009 8 25 55068 0.2630 0.4755 0.24210 2009 8 26 55069 0.2647 0.4725 0.24211 2009 8 27 55070 0.2664 0.4696 0.24226 2009 8 28 55071 0.2680 0.4666 0.24245 2009 8 29 55072 0.2695 0.4636 0.24263 2009 8 30 55073 0.2710 0.4606 0.24278 2009 8 31 55074 0.2725 0.4575 0.24290 2009 9 1 55075 0.2739 0.4545 0.24286 2009 9 2 55076 0.2752 0.4514 0.24269 2009 9 3 55077 0.2765 0.4483 0.24237 2009 9 4 55078 0.2778 0.4452 0.24183 2009 9 5 55079 0.2790 0.4420 0.24110 2009 9 6 55080 0.2801 0.4388 0.24028 2009 9 7 55081 0.2812 0.4357 0.23942 2009 9 8 55082 0.2822 0.4325 0.23863 2009 9 9 55083 0.2832 0.4293 0.23798 2009 9 10 55084 0.2841 0.4261 0.23744 2009 9 11 55085 0.2850 0.4228 0.23704 2009 9 12 55086 0.2858 0.4196 0.23674 2009 9 13 55087 0.2866 0.4163 0.23642 2009 9 14 55088 0.2873 0.4130 0.23590 2009 9 15 55089 0.2879 0.4098 0.23512 2009 9 16 55090 0.2885 0.4065 0.23407 2009 9 17 55091 0.2890 0.4032 0.23278 2009 9 18 55092 0.2895 0.3999 0.23136 2009 9 19 55093 0.2899 0.3966 0.22996 2009 9 20 55094 0.2903 0.3933 0.22871 2009 9 21 55095 0.2906 0.3899 0.22770 2009 9 22 55096 0.2909 0.3866 0.22698 2009 9 23 55097 0.2911 0.3833 0.22651 2009 9 24 55098 0.2912 0.3800 0.22621 2009 9 25 55099 0.2913 0.3766 0.22600 2009 9 26 55100 0.2914 0.3733 0.22580 2009 9 27 55101 0.2913 0.3700 0.22549 2009 9 28 55102 0.2913 0.3667 0.22505 2009 9 29 55103 0.2911 0.3633 0.22451 2009 9 30 55104 0.2910 0.3600 0.22381 2009 10 1 55105 0.2907 0.3567 0.22293 2009 10 2 55106 0.2904 0.3534 0.22189 2009 10 3 55107 0.2901 0.3501 0.22072 2009 10 4 55108 0.2897 0.3468 0.21946 2009 10 5 55109 0.2892 0.3435 0.21819 2009 10 6 55110 0.2887 0.3402 0.21700 2009 10 7 55111 0.2882 0.3369 0.21590 2009 10 8 55112 0.2875 0.3336 0.21496 2009 10 9 55113 0.2869 0.3304 0.21417 2009 10 10 55114 0.2861 0.3271 0.21346 2009 10 11 55115 0.2854 0.3239 0.21274 2009 10 12 55116 0.2845 0.3207 0.21190 2009 10 13 55117 0.2836 0.3175 0.21085 2009 10 14 55118 0.2827 0.3143 0.20954 2009 10 15 55119 0.2817 0.3111 0.20804 2009 10 16 55120 0.2807 0.3079 0.20654 2009 10 17 55121 0.2796 0.3048 0.20511 2009 10 18 55122 0.2784 0.3016 0.20382 2009 10 19 55123 0.2773 0.2985 0.20272 2009 10 20 55124 0.2760 0.2954 0.20184 2009 10 21 55125 0.2747 0.2924 0.20116 2009 10 22 55126 0.2734 0.2893 0.20065 2009 10 23 55127 0.2720 0.2863 0.20018 2009 10 24 55128 0.2705 0.2833 0.19965 2009 10 25 55129 0.2691 0.2803 0.19912 2009 10 26 55130 0.2675 0.2773 0.19856 2009 10 27 55131 0.2659 0.2744 0.19786 2009 10 28 55132 0.2643 0.2714 0.19701 2009 10 29 55133 0.2626 0.2686 0.19606 2009 10 30 55134 0.2609 0.2657 0.19503 2009 10 31 55135 0.2591 0.2629 0.19394 2009 11 1 55136 0.2573 0.2600 0.19285 2009 11 2 55137 0.2555 0.2573 0.19187 2009 11 3 55138 0.2536 0.2545 0.19106 2009 11 4 55139 0.2516 0.2518 0.19041 2009 11 5 55140 0.2496 0.2491 0.18986 2009 11 6 55141 0.2476 0.2464 0.18930 2009 11 7 55142 0.2455 0.2438 0.18862 2009 11 8 55143 0.2434 0.2412 0.18773 2009 11 9 55144 0.2413 0.2386 0.18653 2009 11 10 55145 0.2391 0.2361 0.18505 2009 11 11 55146 0.2368 0.2336 0.18336 2009 11 12 55147 0.2346 0.2311 0.18161 2009 11 13 55148 0.2322 0.2287 0.17988 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) 54764 -66.98 .21 -6.27 .34 54765 -66.92 .17 -6.02 .34 54766 -66.97 .17 -5.79 .34 54767 -67.09 .74 -5.67 .34 54768 -67.21 .12 -5.77 .34 54769 -67.32 .12 -6.03 .34 54770 -67.35 .12 -6.29 .34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 54710 -69.2 -7.2 54711 -69.5 -7.3 54712 -70.2 -7.5 54713 -70.8 -7.7 54714 -71.0 -7.7 54715 -70.9 -7.6 54716 -70.3 -7.4 54717 -69.7 -7.3 54718 -69.2 -7.5 54719 -69.1 -7.7 54720 -69.3 -7.8 54721 -69.6 -7.7 54722 -69.7 -7.6 54723 -69.7 -7.5 54724 -69.6 -7.5 54725 -69.7 -7.5 54726 -70.0 -7.4 54727 -70.4 -7.3 54728 -70.8 -7.3 54729 -70.8 -7.2 54730 -70.4 -7.2 54731 -69.9 -7.2 54732 -69.5 -7.2 54733 -69.3 -7.2 54734 -69.2 -7.2 54735 -69.2 -7.2 54736 -69.1 -7.1 54737 -69.0 -6.9 54738 -69.0 -6.7 54739 -69.1 -6.7 54740 -69.4 -6.9 54741 -69.8 -7.1 54742 -69.9 -7.2 54743 -69.7 -7.1 54744 -69.1 -6.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54764 -0.123 0.084 -0.422 0.340 54765 -0.137 0.068 -0.416 0.340 54766 -0.145 0.068 -0.422 0.340 54767 -0.160 0.294 -0.405 0.340 54768 -0.170 0.048 -0.391 0.340 54769 -0.172 0.048 -0.379 0.340 54770 -0.165 0.048 -0.392 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 54710 0.13 -0.21 54711 0.14 -0.31 54712 0.10 -0.41 54713 0.08 -0.48 54714 0.09 -0.44 54715 0.07 -0.42 54716 0.13 -0.35 54717 0.18 -0.29 54718 0.25 -0.42 54719 0.25 -0.50 54720 0.20 -0.55 54721 0.14 -0.49 54722 0.16 -0.46 54723 0.18 -0.43 54724 0.22 -0.50 54725 0.19 -0.58 54726 0.14 -0.55 54727 0.08 -0.47 54728 -0.01 -0.42 54729 -0.04 -0.27 54730 -0.01 -0.26 54731 0.02 -0.27 54732 0.05 -0.27 54733 0.06 -0.23 54734 0.05 -0.18 54735 -0.00 -0.22 54736 -0.03 -0.29 54737 -0.03 -0.36 54738 -0.02 -0.41 54739 0.01 -0.49 54740 0.02 -0.57 54741 0.00 -0.54 54742 0.03 -0.49 54743 0.05 -0.38 54744 0.09 -0.24 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.