********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 July 2008 Vol. XXI No. 028 ______________________________________________________________________ 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 7 4 54651 .21884 .00009 .49119 .00009 -.445351 .000014 8 7 5 54652 .22172 .00010 .48910 .00009 -.445825 .000010 8 7 6 54653 .22463 .00010 .48724 .00009 -.446473 .000010 8 7 7 54654 .22724 .00009 .48539 .00009 -.447254 .000010 8 7 8 54655 .22963 .00009 .48327 .00009 -.448056 .000009 8 7 9 54656 .23191 .00009 .48116 .00009 -.448746 .000048 8 7 10 54657 .23417 .00009 .47916 .00009 -.449283 .000057 IERS Final Values MJD x y UT1-UTC " " s 8 5 4 54590 .0271 .5384 -.39947 8 5 5 54591 .0300 .5386 -.40115 8 5 6 54592 .0335 .5388 -.40258 8 5 7 54593 .0369 .5393 -.40366 8 5 8 54594 .0398 .5399 -.40455 8 5 9 54595 .0425 .5407 -.40543 8 5 10 54596 .0448 .5415 -.40637 8 5 11 54597 .0473 .5419 -.40745 8 5 12 54598 .0500 .5423 -.40890 8 5 13 54599 .0528 .5426 -.41047 8 5 14 54600 .0564 .5427 -.41214 8 5 15 54601 .0602 .5427 -.41380 8 5 16 54602 .0641 .5427 -.41541 8 5 17 54603 .0679 .5427 -.41684 8 5 18 54604 .0714 .5427 -.41800 8 5 19 54605 .0746 .5428 -.41904 8 5 20 54606 .0777 .5427 -.41982 8 5 21 54607 .0809 .5424 -.42036 8 5 22 54608 .0843 .5419 -.42078 8 5 23 54609 .0882 .5416 -.42104 8 5 24 54610 .0922 .5415 -.42132 8 5 25 54611 .0961 .5414 -.42173 8 5 26 54612 .1000 .5413 -.42230 8 5 27 54613 .1038 .5416 -.42305 8 5 28 54614 .1075 .5415 -.42401 8 5 29 54615 .1112 .5413 -.42515 8 5 30 54616 .1145 .5407 -.42634 8 5 31 54617 .1173 .5401 -.42758 8 6 1 54618 .1200 .5398 -.42874 8 6 2 54619 .1226 .5393 -.42968 _______________________________________________________________________ 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 = .0608 + .0806 cos A + .0936 sin A + .0848 cos C + .0280 sin C y = .3564 + .0925 cos A - .0673 sin A + .0280 cos C - .0848 sin C UT1-UTC = -.4531 - .00080 (MJD - 54665) - (UT2-UT1) where A = 2*pi*(MJD-54657)/365.25 and C = 2*pi*(MJD-54657)/435. TAI-UTC(MJD 54658) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54657)**0.80 S t = 0.00025 (MJD-54657)**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 7 11 54658 0.2363 0.4769 -0.44962 2008 7 12 54659 0.2384 0.4746 -0.44973 2008 7 13 54660 0.2404 0.4722 -0.44964 2008 7 14 54661 0.2424 0.4697 -0.44937 2008 7 15 54662 0.2444 0.4671 -0.44900 2008 7 16 54663 0.2464 0.4644 -0.44858 2008 7 17 54664 0.2483 0.4616 -0.44821 2008 7 18 54665 0.2501 0.4588 -0.44794 2008 7 19 54666 0.2520 0.4560 -0.44783 2008 7 20 54667 0.2538 0.4531 -0.44793 2008 7 21 54668 0.2555 0.4502 -0.44823 2008 7 22 54669 0.2572 0.4473 -0.44873 2008 7 23 54670 0.2588 0.4443 -0.44937 2008 7 24 54671 0.2604 0.4413 -0.45006 2008 7 25 54672 0.2619 0.4383 -0.45071 2008 7 26 54673 0.2634 0.4353 -0.45123 2008 7 27 54674 0.2648 0.4322 -0.45156 2008 7 28 54675 0.2662 0.4291 -0.45171 2008 7 29 54676 0.2675 0.4260 -0.45172 2008 7 30 54677 0.2688 0.4229 -0.45169 2008 7 31 54678 0.2700 0.4198 -0.45177 2008 8 1 54679 0.2712 0.4166 -0.45204 2008 8 2 54680 0.2723 0.4134 -0.45256 2008 8 3 54681 0.2734 0.4102 -0.45328 2008 8 4 54682 0.2744 0.4070 -0.45412 2008 8 5 54683 0.2754 0.4037 -0.45494 2008 8 6 54684 0.2763 0.4005 -0.45567 2008 8 7 54685 0.2771 0.3972 -0.45621 2008 8 8 54686 0.2779 0.3940 -0.45654 2008 8 9 54687 0.2787 0.3907 -0.45666 2008 8 10 54688 0.2793 0.3874 -0.45662 2008 8 11 54689 0.2800 0.3840 -0.45645 2008 8 12 54690 0.2805 0.3807 -0.45622 2008 8 13 54691 0.2811 0.3774 -0.45599 2008 8 14 54692 0.2815 0.3740 -0.45585 2008 8 15 54693 0.2819 0.3707 -0.45587 2008 8 16 54694 0.2823 0.3673 -0.45611 2008 8 17 54695 0.2826 0.3640 -0.45659 2008 8 18 54696 0.2828 0.3606 -0.45730 2008 8 19 54697 0.2830 0.3572 -0.45819 2008 8 20 54698 0.2831 0.3539 -0.45914 2008 8 21 54699 0.2832 0.3505 -0.46005 2008 8 22 54700 0.2832 0.3471 -0.46081 2008 8 23 54701 0.2832 0.3437 -0.46136 2008 8 24 54702 0.2831 0.3403 -0.46169 2008 8 25 54703 0.2829 0.3370 -0.46186 2008 8 26 54704 0.2827 0.3336 -0.46197 2008 8 27 54705 0.2824 0.3302 -0.46215 2008 8 28 54706 0.2821 0.3268 -0.46251 2008 8 29 54707 0.2817 0.3235 -0.46311 2008 8 30 54708 0.2813 0.3201 -0.46394 2008 8 31 54709 0.2808 0.3167 -0.46495 2008 9 1 54710 0.2803 0.3134 -0.46602 2008 9 2 54711 0.2797 0.3101 -0.46704 2008 9 3 54712 0.2790 0.3067 -0.46790 2008 9 4 54713 0.2783 0.3034 -0.46857 2008 9 5 54714 0.2775 0.3001 -0.46901 2008 9 6 54715 0.2767 0.2968 -0.46926 2008 9 7 54716 0.2758 0.2935 -0.46936 2008 9 8 54717 0.2749 0.2902 -0.46938 2008 9 9 54718 0.2739 0.2870 -0.46940 2008 9 10 54719 0.2728 0.2837 -0.46949 2008 9 11 54720 0.2717 0.2805 -0.46972 2008 9 12 54721 0.2706 0.2773 -0.47015 2008 9 13 54722 0.2694 0.2741 -0.47083 2008 9 14 54723 0.2681 0.2709 -0.47175 2008 9 15 54724 0.2668 0.2677 -0.47287 2008 9 16 54725 0.2654 0.2646 -0.47409 2008 9 17 54726 0.2640 0.2614 -0.47530 2008 9 18 54727 0.2626 0.2583 -0.47636 2008 9 19 54728 0.2610 0.2553 -0.47720 2008 9 20 54729 0.2595 0.2522 -0.47778 2008 9 21 54730 0.2578 0.2492 -0.47817 2008 9 22 54731 0.2562 0.2462 -0.47846 2008 9 23 54732 0.2544 0.2432 -0.47878 2008 9 24 54733 0.2527 0.2402 -0.47925 2008 9 25 54734 0.2509 0.2373 -0.47993 2008 9 26 54735 0.2490 0.2344 -0.48084 2008 9 27 54736 0.2471 0.2315 -0.48195 2008 9 28 54737 0.2451 0.2287 -0.48316 2008 9 29 54738 0.2431 0.2258 -0.48438 2008 9 30 54739 0.2410 0.2230 -0.48550 2008 10 1 54740 0.2389 0.2203 -0.48646 2008 10 2 54741 0.2368 0.2176 -0.48723 2008 10 3 54742 0.2346 0.2149 -0.48780 2008 10 4 54743 0.2323 0.2122 -0.48822 2008 10 5 54744 0.2301 0.2096 -0.48855 2008 10 6 54745 0.2277 0.2070 -0.48885 2008 10 7 54746 0.2254 0.2044 -0.48920 2008 10 8 54747 0.2229 0.2019 -0.48967 2008 10 9 54748 0.2205 0.1994 -0.49032 2008 10 10 54749 0.2180 0.1970 -0.49121 2008 10 11 54750 0.2155 0.1946 -0.49233 2008 10 12 54751 0.2129 0.1922 -0.49369 2008 10 13 54752 0.2103 0.1898 -0.49520 2008 10 14 54753 0.2076 0.1875 -0.49677 2008 10 15 54754 0.2049 0.1853 -0.49827 2008 10 16 54755 0.2022 0.1831 -0.49957 2008 10 17 54756 0.1994 0.1809 -0.50062 2008 10 18 54757 0.1966 0.1788 -0.50144 2008 10 19 54758 0.1938 0.1767 -0.50212 2008 10 20 54759 0.1909 0.1746 -0.50278 2008 10 21 54760 0.1880 0.1726 -0.50356 2008 10 22 54761 0.1851 0.1707 -0.50454 2008 10 23 54762 0.1821 0.1687 -0.50574 2008 10 24 54763 0.1791 0.1669 -0.50714 2008 10 25 54764 0.1761 0.1650 -0.50864 2008 10 26 54765 0.1730 0.1633 -0.51016 2008 10 27 54766 0.1699 0.1615 -0.51166 2008 10 28 54767 0.1668 0.1598 -0.51302 2008 10 29 54768 0.1637 0.1582 -0.51418 2008 10 30 54769 0.1605 0.1566 -0.51514 2008 10 31 54770 0.1573 0.1551 -0.51592 2008 11 1 54771 0.1541 0.1536 -0.51658 2008 11 2 54772 0.1508 0.1521 -0.51716 2008 11 3 54773 0.1476 0.1507 -0.51776 2008 11 4 54774 0.1443 0.1494 -0.51843 2008 11 5 54775 0.1410 0.1481 -0.51924 2008 11 6 54776 0.1376 0.1468 -0.52023 2008 11 7 54777 0.1343 0.1456 -0.52143 2008 11 8 54778 0.1309 0.1445 -0.52282 2008 11 9 54779 0.1275 0.1434 -0.52439 2008 11 10 54780 0.1241 0.1423 -0.52604 2008 11 11 54781 0.1207 0.1413 -0.52766 2008 11 12 54782 0.1172 0.1404 -0.52914 2008 11 13 54783 0.1138 0.1395 -0.53039 2008 11 14 54784 0.1103 0.1387 -0.53138 2008 11 15 54785 0.1068 0.1379 -0.53217 2008 11 16 54786 0.1033 0.1372 -0.53288 2008 11 17 54787 0.0998 0.1365 -0.53366 2008 11 18 54788 0.0963 0.1359 -0.53461 2008 11 19 54789 0.0928 0.1353 -0.53578 2008 11 20 54790 0.0893 0.1348 -0.53712 2008 11 21 54791 0.0857 0.1343 -0.53856 2008 11 22 54792 0.0822 0.1339 -0.54001 2008 11 23 54793 0.0786 0.1335 -0.54138 2008 11 24 54794 0.0751 0.1332 -0.54259 2008 11 25 54795 0.0715 0.1330 -0.54362 2008 11 26 54796 0.0679 0.1328 -0.54444 2008 11 27 54797 0.0644 0.1326 -0.54508 2008 11 28 54798 0.0608 0.1326 -0.54557 2008 11 29 54799 0.0572 0.1325 -0.54597 2008 11 30 54800 0.0536 0.1325 -0.54635 2008 12 1 54801 0.0501 0.1326 -0.54679 2008 12 2 54802 0.0465 0.1328 -0.54735 2008 12 3 54803 0.0429 0.1329 -0.54806 2008 12 4 54804 0.0394 0.1332 -0.54895 2008 12 5 54805 0.0358 0.1335 -0.55003 2008 12 6 54806 0.0323 0.1338 -0.55126 2008 12 7 54807 0.0287 0.1342 -0.55260 2008 12 8 54808 0.0252 0.1347 -0.55395 2008 12 9 54809 0.0217 0.1352 -0.55522 2008 12 10 54810 0.0182 0.1357 -0.55630 2008 12 11 54811 0.0147 0.1364 -0.55715 2008 12 12 54812 0.0112 0.1370 -0.55779 2008 12 13 54813 0.0077 0.1378 -0.55831 2008 12 14 54814 0.0042 0.1385 -0.55885 2008 12 15 54815 0.0008 0.1394 -0.55953 2008 12 16 54816 -0.0027 0.1402 -0.56045 2008 12 17 54817 -0.0061 0.1412 -0.56157 2008 12 18 54818 -0.0095 0.1422 -0.56283 2008 12 19 54819 -0.0129 0.1432 -0.56412 2008 12 20 54820 -0.0163 0.1443 -0.56532 2008 12 21 54821 -0.0196 0.1454 -0.56636 2008 12 22 54822 -0.0230 0.1466 -0.56719 2008 12 23 54823 -0.0263 0.1479 -0.56782 2008 12 24 54824 -0.0296 0.1492 -0.56825 2008 12 25 54825 -0.0328 0.1505 -0.56852 2008 12 26 54826 -0.0361 0.1519 -0.56869 2008 12 27 54827 -0.0393 0.1533 -0.56882 2008 12 28 54828 -0.0425 0.1548 -0.56899 2008 12 29 54829 -0.0456 0.1564 -0.56925 2008 12 30 54830 -0.0488 0.1580 -0.56967 2008 12 31 54831 -0.0519 0.1596 -0.57026 2009 1 1 54832 -0.0550 0.1613 0.42898 2009 1 2 54833 -0.0580 0.1630 0.42808 2009 1 3 54834 -0.0611 0.1648 0.42708 2009 1 4 54835 -0.0641 0.1666 0.42606 2009 1 5 54836 -0.0670 0.1685 0.42510 2009 1 6 54837 -0.0700 0.1704 0.42429 2009 1 7 54838 -0.0729 0.1724 0.42368 2009 1 8 54839 -0.0757 0.1744 0.42329 2009 1 9 54840 -0.0786 0.1764 0.42305 2009 1 10 54841 -0.0814 0.1785 0.42285 2009 1 11 54842 -0.0841 0.1806 0.42253 2009 1 12 54843 -0.0869 0.1828 0.42200 2009 1 13 54844 -0.0895 0.1850 0.42122 2009 1 14 54845 -0.0922 0.1873 0.42023 2009 1 15 54846 -0.0948 0.1896 0.41915 2009 1 16 54847 -0.0974 0.1919 0.41809 2009 1 17 54848 -0.0999 0.1943 0.41714 2009 1 18 54849 -0.1024 0.1967 0.41633 2009 1 19 54850 -0.1049 0.1992 0.41569 2009 1 20 54851 -0.1073 0.2017 0.41519 2009 1 21 54852 -0.1096 0.2042 0.41478 2009 1 22 54853 -0.1120 0.2068 0.41443 2009 1 23 54854 -0.1142 0.2094 0.41409 2009 1 24 54855 -0.1165 0.2120 0.41371 2009 1 25 54856 -0.1187 0.2147 0.41323 2009 1 26 54857 -0.1208 0.2174 0.41260 2009 1 27 54858 -0.1229 0.2201 0.41180 2009 1 28 54859 -0.1250 0.2229 0.41082 2009 1 29 54860 -0.1270 0.2257 0.40968 2009 1 30 54861 -0.1290 0.2285 0.40841 2009 1 31 54862 -0.1309 0.2314 0.40709 2009 2 1 54863 -0.1327 0.2343 0.40580 2009 2 2 54864 -0.1346 0.2372 0.40462 2009 2 3 54865 -0.1363 0.2401 0.40364 2009 2 4 54866 -0.1380 0.2431 0.40287 2009 2 5 54867 -0.1397 0.2461 0.40228 2009 2 6 54868 -0.1413 0.2491 0.40178 2009 2 7 54869 -0.1429 0.2522 0.40123 2009 2 8 54870 -0.1444 0.2552 0.40049 2009 2 9 54871 -0.1459 0.2583 0.39948 2009 2 10 54872 -0.1473 0.2615 0.39820 2009 2 11 54873 -0.1487 0.2646 0.39674 2009 2 12 54874 -0.1500 0.2678 0.39523 2009 2 13 54875 -0.1512 0.2710 0.39382 2009 2 14 54876 -0.1524 0.2742 0.39259 2009 2 15 54877 -0.1536 0.2774 0.39163 2009 2 16 54878 -0.1547 0.2806 0.39098 2009 2 17 54879 -0.1557 0.2839 0.39054 2009 2 18 54880 -0.1567 0.2871 0.39025 2009 2 19 54881 -0.1576 0.2904 0.39005 2009 2 20 54882 -0.1585 0.2937 0.38987 2009 2 21 54883 -0.1593 0.2970 0.38959 2009 2 22 54884 -0.1601 0.3004 0.38913 2009 2 23 54885 -0.1608 0.3037 0.38849 2009 2 24 54886 -0.1615 0.3071 0.38767 2009 2 25 54887 -0.1621 0.3104 0.38662 2009 2 26 54888 -0.1626 0.3138 0.38538 2009 2 27 54889 -0.1631 0.3172 0.38400 2009 2 28 54890 -0.1636 0.3205 0.38257 2009 3 1 54891 -0.1639 0.3239 0.38118 2009 3 2 54892 -0.1643 0.3273 0.37987 2009 3 3 54893 -0.1645 0.3307 0.37870 2009 3 4 54894 -0.1647 0.3341 0.37766 2009 3 5 54895 -0.1649 0.3376 0.37671 2009 3 6 54896 -0.1650 0.3410 0.37572 2009 3 7 54897 -0.1650 0.3444 0.37461 2009 3 8 54898 -0.1650 0.3478 0.37327 2009 3 9 54899 -0.1649 0.3512 0.37164 2009 3 10 54900 -0.1648 0.3546 0.36976 2009 3 11 54901 -0.1646 0.3580 0.36773 2009 3 12 54902 -0.1644 0.3615 0.36567 2009 3 13 54903 -0.1641 0.3649 0.36374 2009 3 14 54904 -0.1637 0.3683 0.36204 2009 3 15 54905 -0.1633 0.3717 0.36063 2009 3 16 54906 -0.1629 0.3750 0.35952 2009 3 17 54907 -0.1623 0.3784 0.35862 2009 3 18 54908 -0.1618 0.3818 0.35788 2009 3 19 54909 -0.1611 0.3852 0.35721 2009 3 20 54910 -0.1604 0.3885 0.35652 2009 3 21 54911 -0.1597 0.3919 0.35578 2009 3 22 54912 -0.1589 0.3952 0.35497 2009 3 23 54913 -0.1581 0.3985 0.35400 2009 3 24 54914 -0.1572 0.4018 0.35288 2009 3 25 54915 -0.1562 0.4051 0.35158 2009 3 26 54916 -0.1552 0.4084 0.35016 2009 3 27 54917 -0.1541 0.4117 0.34872 2009 3 28 54918 -0.1530 0.4149 0.34736 2009 3 29 54919 -0.1518 0.4182 0.34623 2009 3 30 54920 -0.1506 0.4214 0.34542 2009 3 31 54921 -0.1493 0.4246 0.34488 2009 4 1 54922 -0.1480 0.4278 0.34446 2009 4 2 54923 -0.1466 0.4309 0.34401 2009 4 3 54924 -0.1452 0.4341 0.34345 2009 4 4 54925 -0.1437 0.4372 0.34267 2009 4 5 54926 -0.1422 0.4403 0.34160 2009 4 6 54927 -0.1406 0.4433 0.34027 2009 4 7 54928 -0.1390 0.4464 0.33881 2009 4 8 54929 -0.1373 0.4494 0.33737 2009 4 9 54930 -0.1356 0.4524 0.33606 2009 4 10 54931 -0.1338 0.4554 0.33489 2009 4 11 54932 -0.1320 0.4583 0.33389 2009 4 12 54933 -0.1301 0.4612 0.33311 2009 4 13 54934 -0.1282 0.4641 0.33256 2009 4 14 54935 -0.1262 0.4670 0.33218 2009 4 15 54936 -0.1242 0.4698 0.33183 2009 4 16 54937 -0.1221 0.4726 0.33138 2009 4 17 54938 -0.1200 0.4754 0.33080 2009 4 18 54939 -0.1179 0.4781 0.33005 2009 4 19 54940 -0.1157 0.4808 0.32914 2009 4 20 54941 -0.1135 0.4835 0.32810 2009 4 21 54942 -0.1112 0.4861 0.32690 2009 4 22 54943 -0.1089 0.4887 0.32560 2009 4 23 54944 -0.1065 0.4913 0.32425 2009 4 24 54945 -0.1041 0.4938 0.32295 2009 4 25 54946 -0.1017 0.4963 0.32181 2009 4 26 54947 -0.0992 0.4987 0.32091 2009 4 27 54948 -0.0967 0.5011 0.32031 2009 4 28 54949 -0.0942 0.5035 0.31989 2009 4 29 54950 -0.0916 0.5059 0.31950 2009 4 30 54951 -0.0890 0.5082 0.31902 2009 5 1 54952 -0.0863 0.5104 0.31833 2009 5 2 54953 -0.0836 0.5126 0.31733 2009 5 3 54954 -0.0809 0.5148 0.31607 2009 5 4 54955 -0.0781 0.5170 0.31465 2009 5 5 54956 -0.0753 0.5191 0.31321 2009 5 6 54957 -0.0725 0.5211 0.31181 2009 5 7 54958 -0.0696 0.5231 0.31058 2009 5 8 54959 -0.0667 0.5251 0.30959 2009 5 9 54960 -0.0638 0.5270 0.30884 2009 5 10 54961 -0.0608 0.5289 0.30826 2009 5 11 54962 -0.0579 0.5307 0.30786 2009 5 12 54963 -0.0548 0.5325 0.30764 2009 5 13 54964 -0.0518 0.5342 0.30741 2009 5 14 54965 -0.0487 0.5359 0.30709 2009 5 15 54966 -0.0457 0.5376 0.30664 2009 5 16 54967 -0.0425 0.5392 0.30605 2009 5 17 54968 -0.0394 0.5407 0.30532 2009 5 18 54969 -0.0363 0.5422 0.30443 2009 5 19 54970 -0.0331 0.5437 0.30340 2009 5 20 54971 -0.0299 0.5451 0.30232 2009 5 21 54972 -0.0266 0.5465 0.30127 2009 5 22 54973 -0.0234 0.5478 0.30035 2009 5 23 54974 -0.0201 0.5490 0.29961 2009 5 24 54975 -0.0169 0.5502 0.29911 2009 5 25 54976 -0.0136 0.5514 0.29887 2009 5 26 54977 -0.0102 0.5525 0.29871 2009 5 27 54978 -0.0069 0.5536 0.29849 2009 5 28 54979 -0.0036 0.5546 0.29813 2009 5 29 54980 -0.0002 0.5555 0.29756 2009 5 30 54981 0.0032 0.5565 0.29679 2009 5 31 54982 0.0065 0.5573 0.29587 2009 6 1 54983 0.0099 0.5581 0.29493 2009 6 2 54984 0.0133 0.5589 0.29405 2009 6 3 54985 0.0168 0.5596 0.29334 2009 6 4 54986 0.0202 0.5602 0.29287 2009 6 5 54987 0.0236 0.5608 0.29269 2009 6 6 54988 0.0270 0.5614 0.29284 2009 6 7 54989 0.0305 0.5619 0.29324 2009 6 8 54990 0.0339 0.5623 0.29379 2009 6 9 54991 0.0374 0.5627 0.29442 2009 6 10 54992 0.0408 0.5630 0.29499 2009 6 11 54993 0.0443 0.5633 0.29546 2009 6 12 54994 0.0478 0.5635 0.29576 2009 6 13 54995 0.0512 0.5637 0.29589 2009 6 14 54996 0.0547 0.5638 0.29579 2009 6 15 54997 0.0581 0.5639 0.29553 2009 6 16 54998 0.0616 0.5639 0.29517 2009 6 17 54999 0.0651 0.5639 0.29479 2009 6 18 55000 0.0685 0.5638 0.29452 2009 6 19 55001 0.0720 0.5637 0.29446 2009 6 20 55002 0.0754 0.5635 0.29467 2009 6 21 55003 0.0788 0.5632 0.29506 2009 6 22 55004 0.0823 0.5629 0.29557 2009 6 23 55005 0.0857 0.5626 0.29606 2009 6 24 55006 0.0891 0.5622 0.29637 2009 6 25 55007 0.0925 0.5617 0.29644 2009 6 26 55008 0.0959 0.5612 0.29628 2009 6 27 55009 0.0993 0.5607 0.29591 2009 6 28 55010 0.1026 0.5601 0.29539 2009 6 29 55011 0.1060 0.5594 0.29488 2009 6 30 55012 0.1093 0.5587 0.29449 2009 7 1 55013 0.1127 0.5579 0.29431 2009 7 2 55014 0.1160 0.5571 0.29437 2009 7 3 55015 0.1193 0.5563 0.29466 2009 7 4 55016 0.1225 0.5554 0.29512 2009 7 5 55017 0.1258 0.5544 0.29575 2009 7 6 55018 0.1290 0.5534 0.29646 2009 7 7 55019 0.1322 0.5523 0.29713 2009 7 8 55020 0.1354 0.5512 0.29769 2009 7 9 55021 0.1386 0.5501 0.29815 2009 7 10 55022 0.1418 0.5488 0.29848 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) 54638 -60.83 .49 -8.03 .34 54639 -60.93 .36 -7.92 .34 54640 -61.10 .36 -7.90 .34 54641 -61.25 .15 -7.90 .13 54642 -61.35 .21 -7.92 .13 54643 -61.48 .21 -8.00 .13 54644 -61.76 .21 -8.09 .13 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 54590 -56.1 -7.8 54591 -56.7 -7.6 54592 -57.3 -7.7 54593 -57.3 -8.1 54594 -56.9 -8.4 54595 -56.5 -8.5 54596 -56.3 -8.6 54597 -56.2 -8.6 54598 -56.3 -8.5 54599 -56.5 -8.2 54600 -56.6 -8.0 54601 -56.6 -8.0 54602 -56.6 -7.9 54603 -56.7 -7.8 54604 -56.9 -7.8 54605 -57.1 -8.1 54606 -57.1 -8.5 54607 -57.0 -8.9 54608 -56.9 -9.0 54609 -57.0 -8.9 54610 -57.3 -8.9 54611 -57.6 -8.9 54612 -57.7 -8.8 54613 -57.4 -8.5 54614 -57.0 -8.3 54615 -56.7 -8.2 54616 -56.8 -8.1 54617 -57.1 -8.0 54618 -57.7 -7.9 54619 -58.4 -7.9 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54638 0.213 0.195 -0.299 0.340 54639 0.202 0.143 -0.310 0.340 54640 0.188 0.143 -0.302 0.340 54641 0.171 0.060 -0.300 0.130 54642 0.155 0.084 -0.316 0.130 54643 0.145 0.084 -0.343 0.130 54644 0.137 0.084 -0.358 0.130 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 54590 0.30 -0.37 54591 0.34 -0.34 54592 0.35 -0.17 54593 0.41 -0.10 54594 0.45 -0.06 54595 0.41 0.01 54596 0.32 -0.02 54597 0.29 -0.08 54598 0.31 -0.21 54599 0.36 -0.21 54600 0.42 -0.21 54601 0.42 -0.25 54602 0.35 -0.14 54603 0.24 -0.04 54604 0.14 0.04 54605 0.08 -0.01 54606 0.14 -0.08 54607 0.23 -0.26 54608 0.30 -0.37 54609 0.26 -0.39 54610 0.13 -0.47 54611 0.01 -0.51 54612 -0.05 -0.52 54613 0.02 -0.41 54614 0.16 -0.33 54615 0.34 -0.16 54616 0.42 0.06 54617 0.46 0.08 54618 0.44 -0.06 54619 0.40 -0.17 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.