********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 May 2008 Vol. XXI No. 022 ______________________________________________________________________ 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 ________________________________________________________________________ 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 5 23 54609 .08814 .00010 .54154 .00009 -.421044 .000014 8 5 24 54610 .09217 .00010 .54142 .00009 -.421327 .000022 8 5 25 54611 .09611 .00009 .54129 .00009 -.421728 .000022 8 5 26 54612 .09998 .00009 .54131 .00009 -.422315 .000021 8 5 27 54613 .10376 .00009 .54150 .00009 -.423117 .000037 8 5 28 54614 .10752 .00009 .54145 .00009 -.424074 .000048 8 5 29 54615 .11131 .00010 .54116 .00009 -.425220 .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 = .0598 + .0058 cos A + .1238 sin A + .0467 cos C + .0671 sin C y = .3526 + .1145 cos A + .0018 sin A + .0671 cos C - .0467 sin C UT1-UTC = -.3980 - .00079 (MJD - 54623) - (UT2-UT1) where A = 2*pi*(MJD-54615)/365.25 and C = 2*pi*(MJD-54615)/435. TAI-UTC(MJD 54616) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54615)**0.80 S t = 0.00025 (MJD-54615)**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 5 30 54616 0.1149 0.5407 -0.42653 2008 5 31 54617 0.1184 0.5402 -0.42781 2008 6 1 54618 0.1219 0.5395 -0.42892 2008 6 2 54619 0.1254 0.5388 -0.42979 2008 6 3 54620 0.1287 0.5380 -0.43043 2008 6 4 54621 0.1321 0.5371 -0.43087 2008 6 5 54622 0.1354 0.5361 -0.43122 2008 6 6 54623 0.1387 0.5352 -0.43162 2008 6 7 54624 0.1420 0.5341 -0.43216 2008 6 8 54625 0.1452 0.5330 -0.43289 2008 6 9 54626 0.1484 0.5318 -0.43375 2008 6 10 54627 0.1516 0.5306 -0.43468 2008 6 11 54628 0.1548 0.5293 -0.43558 2008 6 12 54629 0.1579 0.5280 -0.43638 2008 6 13 54630 0.1610 0.5266 -0.43702 2008 6 14 54631 0.1640 0.5251 -0.43748 2008 6 15 54632 0.1670 0.5236 -0.43776 2008 6 16 54633 0.1700 0.5220 -0.43789 2008 6 17 54634 0.1730 0.5204 -0.43789 2008 6 18 54635 0.1759 0.5188 -0.43781 2008 6 19 54636 0.1788 0.5171 -0.43771 2008 6 20 54637 0.1817 0.5153 -0.43765 2008 6 21 54638 0.1845 0.5136 -0.43768 2008 6 22 54639 0.1873 0.5117 -0.43788 2008 6 23 54640 0.1901 0.5098 -0.43826 2008 6 24 54641 0.1929 0.5079 -0.43882 2008 6 25 54642 0.1956 0.5060 -0.43953 2008 6 26 54643 0.1983 0.5040 -0.44031 2008 6 27 54644 0.2009 0.5019 -0.44108 2008 6 28 54645 0.2035 0.4998 -0.44173 2008 6 29 54646 0.2061 0.4977 -0.44215 2008 6 30 54647 0.2086 0.4955 -0.44230 2008 7 1 54648 0.2111 0.4933 -0.44219 2008 7 2 54649 0.2136 0.4911 -0.44191 2008 7 3 54650 0.2160 0.4888 -0.44161 2008 7 4 54651 0.2184 0.4865 -0.44141 2008 7 5 54652 0.2207 0.4841 -0.44140 2008 7 6 54653 0.2230 0.4817 -0.44161 2008 7 7 54654 0.2253 0.4793 -0.44196 2008 7 8 54655 0.2275 0.4768 -0.44235 2008 7 9 54656 0.2297 0.4743 -0.44268 2008 7 10 54657 0.2318 0.4718 -0.44286 2008 7 11 54658 0.2339 0.4692 -0.44285 2008 7 12 54659 0.2360 0.4666 -0.44264 2008 7 13 54660 0.2380 0.4640 -0.44224 2008 7 14 54661 0.2399 0.4613 -0.44168 2008 7 15 54662 0.2419 0.4586 -0.44099 2008 7 16 54663 0.2437 0.4559 -0.44024 2008 7 17 54664 0.2456 0.4532 -0.43951 2008 7 18 54665 0.2474 0.4504 -0.43888 2008 7 19 54666 0.2491 0.4476 -0.43840 2008 7 20 54667 0.2508 0.4448 -0.43812 2008 7 21 54668 0.2524 0.4419 -0.43804 2008 7 22 54669 0.2540 0.4390 -0.43814 2008 7 23 54670 0.2556 0.4361 -0.43835 2008 7 24 54671 0.2571 0.4332 -0.43858 2008 7 25 54672 0.2585 0.4302 -0.43872 2008 7 26 54673 0.2599 0.4273 -0.43869 2008 7 27 54674 0.2613 0.4243 -0.43844 2008 7 28 54675 0.2626 0.4213 -0.43797 2008 7 29 54676 0.2638 0.4182 -0.43735 2008 7 30 54677 0.2650 0.4152 -0.43671 2008 7 31 54678 0.2661 0.4121 -0.43618 2008 8 1 54679 0.2672 0.4090 -0.43587 2008 8 2 54680 0.2683 0.4059 -0.43583 2008 8 3 54681 0.2693 0.4028 -0.43601 2008 8 4 54682 0.2702 0.3996 -0.43633 2008 8 5 54683 0.2711 0.3965 -0.43666 2008 8 6 54684 0.2719 0.3933 -0.43691 2008 8 7 54685 0.2727 0.3901 -0.43700 2008 8 8 54686 0.2734 0.3870 -0.43690 2008 8 9 54687 0.2741 0.3838 -0.43662 2008 8 10 54688 0.2747 0.3805 -0.43618 2008 8 11 54689 0.2753 0.3773 -0.43564 2008 8 12 54690 0.2758 0.3741 -0.43505 2008 8 13 54691 0.2762 0.3709 -0.43449 2008 8 14 54692 0.2766 0.3676 -0.43403 2008 8 15 54693 0.2770 0.3644 -0.43375 2008 8 16 54694 0.2773 0.3611 -0.43369 2008 8 17 54695 0.2775 0.3578 -0.43387 2008 8 18 54696 0.2777 0.3546 -0.43428 2008 8 19 54697 0.2778 0.3513 -0.43484 2008 8 20 54698 0.2779 0.3480 -0.43547 2008 8 21 54699 0.2779 0.3448 -0.43606 2008 8 22 54700 0.2779 0.3415 -0.43651 2008 8 23 54701 0.2778 0.3382 -0.43674 2008 8 24 54702 0.2776 0.3350 -0.43677 2008 8 25 54703 0.2774 0.3317 -0.43664 2008 8 26 54704 0.2772 0.3284 -0.43645 2008 8 27 54705 0.2769 0.3252 -0.43635 2008 8 28 54706 0.2765 0.3219 -0.43644 2008 8 29 54707 0.2761 0.3187 -0.43677 2008 8 30 54708 0.2756 0.3154 -0.43737 2008 8 31 54709 0.2751 0.3122 -0.43814 2008 9 1 54710 0.2745 0.3090 -0.43898 2008 9 2 54711 0.2738 0.3058 -0.43978 2008 9 3 54712 0.2731 0.3025 -0.44045 2008 9 4 54713 0.2724 0.2993 -0.44093 2008 9 5 54714 0.2716 0.2962 -0.44121 2008 9 6 54715 0.2707 0.2930 -0.44131 2008 9 7 54716 0.2698 0.2898 -0.44128 2008 9 8 54717 0.2689 0.2867 -0.44119 2008 9 9 54718 0.2679 0.2835 -0.44111 2008 9 10 54719 0.2668 0.2804 -0.44111 2008 9 11 54720 0.2657 0.2773 -0.44126 2008 9 12 54721 0.2645 0.2742 -0.44164 2008 9 13 54722 0.2633 0.2712 -0.44226 2008 9 14 54723 0.2620 0.2681 -0.44314 2008 9 15 54724 0.2607 0.2651 -0.44421 2008 9 16 54725 0.2593 0.2621 -0.44539 2008 9 17 54726 0.2579 0.2591 -0.44657 2008 9 18 54727 0.2564 0.2561 -0.44761 2008 9 19 54728 0.2549 0.2532 -0.44844 2008 9 20 54729 0.2533 0.2503 -0.44903 2008 9 21 54730 0.2517 0.2474 -0.44943 2008 9 22 54731 0.2500 0.2445 -0.44973 2008 9 23 54732 0.2483 0.2417 -0.45008 2008 9 24 54733 0.2465 0.2388 -0.45058 2008 9 25 54734 0.2447 0.2360 -0.45130 2008 9 26 54735 0.2428 0.2333 -0.45226 2008 9 27 54736 0.2409 0.2305 -0.45342 2008 9 28 54737 0.2390 0.2278 -0.45468 2008 9 29 54738 0.2370 0.2252 -0.45595 2008 9 30 54739 0.2349 0.2225 -0.45713 2008 10 1 54740 0.2328 0.2199 -0.45814 2008 10 2 54741 0.2307 0.2173 -0.45894 2008 10 3 54742 0.2285 0.2148 -0.45956 2008 10 4 54743 0.2263 0.2122 -0.46001 2008 10 5 54744 0.2240 0.2098 -0.46036 2008 10 6 54745 0.2217 0.2073 -0.46068 2008 10 7 54746 0.2194 0.2049 -0.46104 2008 10 8 54747 0.2170 0.2025 -0.46151 2008 10 9 54748 0.2146 0.2002 -0.46215 2008 10 10 54749 0.2121 0.1979 -0.46301 2008 10 11 54750 0.2096 0.1956 -0.46411 2008 10 12 54751 0.2071 0.1934 -0.46542 2008 10 13 54752 0.2045 0.1912 -0.46689 2008 10 14 54753 0.2019 0.1890 -0.46840 2008 10 15 54754 0.1993 0.1869 -0.46983 2008 10 16 54755 0.1966 0.1848 -0.47107 2008 10 17 54756 0.1939 0.1828 -0.47205 2008 10 18 54757 0.1911 0.1808 -0.47280 2008 10 19 54758 0.1883 0.1789 -0.47340 2008 10 20 54759 0.1855 0.1769 -0.47398 2008 10 21 54760 0.1827 0.1751 -0.47468 2008 10 22 54761 0.1798 0.1733 -0.47558 2008 10 23 54762 0.1769 0.1715 -0.47669 2008 10 24 54763 0.1739 0.1697 -0.47798 2008 10 25 54764 0.1710 0.1681 -0.47938 2008 10 26 54765 0.1680 0.1664 -0.48080 2008 10 27 54766 0.1649 0.1648 -0.48213 2008 10 28 54767 0.1619 0.1633 -0.48332 2008 10 29 54768 0.1588 0.1618 -0.48432 2008 10 30 54769 0.1557 0.1603 -0.48512 2008 10 31 54770 0.1526 0.1589 -0.48574 2008 11 1 54771 0.1495 0.1575 -0.48623 2008 11 2 54772 0.1463 0.1562 -0.48666 2008 11 3 54773 0.1431 0.1550 -0.48710 2008 11 4 54774 0.1399 0.1537 -0.48762 2008 11 5 54775 0.1367 0.1526 -0.48828 2008 11 6 54776 0.1334 0.1514 -0.48913 2008 11 7 54777 0.1302 0.1504 -0.49018 2008 11 8 54778 0.1269 0.1494 -0.49144 2008 11 9 54779 0.1236 0.1484 -0.49288 2008 11 10 54780 0.1203 0.1475 -0.49440 2008 11 11 54781 0.1169 0.1466 -0.49590 2008 11 12 54782 0.1136 0.1458 -0.49727 2008 11 13 54783 0.1102 0.1450 -0.49840 2008 11 14 54784 0.1069 0.1443 -0.49929 2008 11 15 54785 0.1035 0.1436 -0.49998 2008 11 16 54786 0.1001 0.1430 -0.50060 2008 11 17 54787 0.0967 0.1424 -0.50129 2008 11 18 54788 0.0933 0.1419 -0.50215 2008 11 19 54789 0.0899 0.1415 -0.50324 2008 11 20 54790 0.0864 0.1411 -0.50450 2008 11 21 54791 0.0830 0.1407 -0.50588 2008 11 22 54792 0.0796 0.1404 -0.50726 2008 11 23 54793 0.0761 0.1402 -0.50857 2008 11 24 54794 0.0727 0.1400 -0.50973 2008 11 25 54795 0.0692 0.1398 -0.51071 2008 11 26 54796 0.0658 0.1397 -0.51150 2008 11 27 54797 0.0624 0.1397 -0.51212 2008 11 28 54798 0.0589 0.1397 -0.51260 2008 11 29 54799 0.0555 0.1398 -0.51301 2008 11 30 54800 0.0520 0.1399 -0.51344 2008 12 1 54801 0.0486 0.1400 -0.51394 2008 12 2 54802 0.0451 0.1403 -0.51460 2008 12 3 54803 0.0417 0.1405 -0.51544 2008 12 4 54804 0.0383 0.1409 -0.51651 2008 12 5 54805 0.0348 0.1412 -0.51778 2008 12 6 54806 0.0314 0.1417 -0.51922 2008 12 7 54807 0.0280 0.1422 -0.52077 2008 12 8 54808 0.0246 0.1427 -0.52231 2008 12 9 54809 0.0212 0.1433 -0.52374 2008 12 10 54810 0.0179 0.1439 -0.52496 2008 12 11 54811 0.0145 0.1446 -0.52591 2008 12 12 54812 0.0111 0.1454 -0.52662 2008 12 13 54813 0.0078 0.1461 -0.52719 2008 12 14 54814 0.0045 0.1470 -0.52779 2008 12 15 54815 0.0012 0.1479 -0.52855 2008 12 16 54816 -0.0021 0.1488 -0.52956 2008 12 17 54817 -0.0054 0.1498 -0.53083 2008 12 18 54818 -0.0087 0.1509 -0.53227 2008 12 19 54819 -0.0119 0.1520 -0.53378 2008 12 20 54820 -0.0151 0.1531 -0.53522 2008 12 21 54821 -0.0183 0.1543 -0.53651 2008 12 22 54822 -0.0215 0.1555 -0.53759 2008 12 23 54823 -0.0247 0.1568 -0.53844 2008 12 24 54824 -0.0278 0.1582 -0.53905 2008 12 25 54825 -0.0309 0.1595 -0.53945 2008 12 26 54826 -0.0340 0.1610 -0.53968 2008 12 27 54827 -0.0371 0.1625 -0.53982 2008 12 28 54828 -0.0401 0.1640 -0.53993 2008 12 29 54829 -0.0431 0.1656 -0.54008 2008 12 30 54830 -0.0461 0.1672 -0.54035 2008 12 31 54831 -0.0491 0.1688 -0.54077 2009 1 1 54832 -0.0520 0.1705 -0.54136 2009 1 2 54833 -0.0549 0.1723 -0.54212 2009 1 3 54834 -0.0578 0.1741 -0.54298 2009 1 4 54835 -0.0606 0.1759 -0.54383 2009 1 5 54836 -0.0634 0.1778 -0.54455 2009 1 6 54837 -0.0662 0.1797 -0.54506 2009 1 7 54838 -0.0689 0.1817 -0.54535 2009 1 8 54839 -0.0716 0.1837 -0.54549 2009 1 9 54840 -0.0743 0.1858 -0.54550 2009 1 10 54841 -0.0769 0.1879 -0.54551 2009 1 11 54842 -0.0795 0.1900 -0.54571 2009 1 12 54843 -0.0821 0.1922 -0.54618 2009 1 13 54844 -0.0846 0.1944 -0.54692 2009 1 14 54845 -0.0871 0.1966 -0.54780 2009 1 15 54846 -0.0896 0.1989 -0.54876 2009 1 16 54847 -0.0920 0.2013 -0.54971 2009 1 17 54848 -0.0943 0.2036 -0.55058 2009 1 18 54849 -0.0967 0.2060 -0.55126 2009 1 19 54850 -0.0990 0.2084 -0.55168 2009 1 20 54851 -0.1012 0.2109 -0.55185 2009 1 21 54852 -0.1034 0.2134 -0.55189 2009 1 22 54853 -0.1056 0.2159 -0.55191 2009 1 23 54854 -0.1077 0.2185 -0.55193 2009 1 24 54855 -0.1098 0.2211 -0.55202 2009 1 25 54856 -0.1118 0.2237 -0.55221 2009 1 26 54857 -0.1138 0.2264 -0.55251 2009 1 27 54858 -0.1157 0.2291 -0.55299 2009 1 28 54859 -0.1176 0.2318 -0.55364 2009 1 29 54860 -0.1195 0.2346 -0.55447 2009 1 30 54861 -0.1213 0.2374 -0.55543 2009 1 31 54862 -0.1230 0.2402 -0.55642 2009 2 1 54863 -0.1247 0.2430 -0.55735 2009 2 2 54864 -0.1264 0.2459 -0.55809 2009 2 3 54865 -0.1280 0.2487 -0.55863 2009 2 4 54866 -0.1296 0.2516 -0.55902 2009 2 5 54867 -0.1311 0.2546 -0.55929 2009 2 6 54868 -0.1326 0.2575 -0.55956 2009 2 7 54869 -0.1340 0.2605 -0.56002 2009 2 8 54870 -0.1353 0.2635 -0.56075 2009 2 9 54871 -0.1366 0.2665 -0.56179 2009 2 10 54872 -0.1379 0.2696 -0.56309 2009 2 11 54873 -0.1391 0.2726 -0.56461 2009 2 12 54874 -0.1403 0.2757 -0.56616 2009 2 13 54875 -0.1414 0.2788 -0.56761 2009 2 14 54876 -0.1424 0.2819 -0.56886 2009 2 15 54877 -0.1434 0.2850 -0.56991 2009 2 16 54878 -0.1444 0.2882 -0.57075 2009 2 17 54879 -0.1453 0.2913 -0.57129 2009 2 18 54880 -0.1461 0.2945 -0.57174 2009 2 19 54881 -0.1469 0.2977 -0.57215 2009 2 20 54882 -0.1477 0.3009 -0.57262 2009 2 21 54883 -0.1483 0.3041 -0.57316 2009 2 22 54884 -0.1490 0.3073 -0.57383 2009 2 23 54885 -0.1495 0.3105 -0.57470 2009 2 24 54886 -0.1501 0.3138 -0.57580 2009 2 25 54887 -0.1505 0.3170 -0.57707 2009 2 26 54888 -0.1509 0.3202 -0.57848 2009 2 27 54889 -0.1513 0.3235 -0.57995 2009 2 28 54890 -0.1516 0.3268 -0.58138 2009 3 1 54891 -0.1518 0.3300 -0.58271 2009 3 2 54892 -0.1520 0.3333 -0.58379 2009 3 3 54893 -0.1522 0.3366 -0.58469 2009 3 4 54894 -0.1523 0.3398 -0.58548 2009 3 5 54895 -0.1523 0.3431 -0.58617 2009 3 6 54896 -0.1523 0.3464 -0.58690 2009 3 7 54897 -0.1522 0.3497 -0.58780 2009 3 8 54898 -0.1520 0.3529 -0.58896 2009 3 9 54899 -0.1519 0.3562 -0.59038 2009 3 10 54900 -0.1516 0.3595 -0.59204 2009 3 11 54901 -0.1513 0.3627 -0.59382 2009 3 12 54902 -0.1510 0.3660 -0.59555 2009 3 13 54903 -0.1506 0.3692 -0.59708 2009 3 14 54904 -0.1501 0.3725 -0.59829 2009 3 15 54905 -0.1496 0.3757 -0.59918 2009 3 16 54906 -0.1490 0.3789 -0.59981 2009 3 17 54907 -0.1484 0.3822 -0.60025 2009 3 18 54908 -0.1477 0.3854 -0.60060 2009 3 19 54909 -0.1470 0.3886 -0.60095 2009 3 20 54910 -0.1462 0.3918 -0.60139 2009 3 21 54911 -0.1454 0.3949 -0.60197 2009 3 22 54912 -0.1445 0.3981 -0.60280 2009 3 23 54913 -0.1435 0.4013 -0.60387 2009 3 24 54914 -0.1425 0.4044 -0.60517 2009 3 25 54915 -0.1415 0.4075 -0.60663 2009 3 26 54916 -0.1404 0.4106 -0.60816 2009 3 27 54917 -0.1392 0.4137 -0.60965 2009 3 28 54918 -0.1380 0.4168 -0.61096 2009 3 29 54919 -0.1368 0.4198 -0.61211 2009 3 30 54920 -0.1355 0.4229 -0.61306 2009 3 31 54921 -0.1341 0.4259 -0.61385 2009 4 1 54922 -0.1328 0.4289 -0.61458 2009 4 2 54923 -0.1313 0.4318 -0.61532 2009 4 3 54924 -0.1298 0.4348 -0.61615 2009 4 4 54925 -0.1283 0.4377 -0.61721 2009 4 5 54926 -0.1267 0.4406 -0.61859 2009 4 6 54927 -0.1250 0.4435 -0.62023 2009 4 7 54928 -0.1233 0.4463 -0.62204 2009 4 8 54929 -0.1216 0.4492 -0.62389 2009 4 9 54930 -0.1198 0.4520 -0.62565 2009 4 10 54931 -0.1180 0.4547 -0.62720 2009 4 11 54932 -0.1161 0.4575 -0.62852 2009 4 12 54933 -0.1142 0.4602 -0.62956 2009 4 13 54934 -0.1122 0.4629 -0.63037 2009 4 14 54935 -0.1102 0.4655 -0.63106 2009 4 15 54936 -0.1082 0.4681 -0.63170 2009 4 16 54937 -0.1061 0.4707 -0.63233 2009 4 17 54938 -0.1040 0.4733 -0.63300 2009 4 18 54939 -0.1018 0.4758 -0.63380 2009 4 19 54940 -0.0996 0.4783 -0.63477 2009 4 20 54941 -0.0973 0.4808 -0.63597 2009 4 21 54942 -0.0950 0.4832 -0.63734 2009 4 22 54943 -0.0927 0.4856 -0.63885 2009 4 23 54944 -0.0903 0.4880 -0.64042 2009 4 24 54945 -0.0879 0.4903 -0.64195 2009 4 25 54946 -0.0855 0.4926 -0.64334 2009 4 26 54947 -0.0830 0.4948 -0.64455 2009 4 27 54948 -0.0805 0.4970 -0.64553 2009 4 28 54949 -0.0779 0.4992 -0.64634 2009 4 29 54950 -0.0753 0.5013 -0.64711 2009 4 30 54951 -0.0727 0.5034 -0.64797 2009 5 1 54952 -0.0700 0.5054 -0.64900 2009 5 2 54953 -0.0673 0.5074 -0.65030 2009 5 3 54954 -0.0646 0.5094 -0.65179 2009 5 4 54955 -0.0619 0.5113 -0.65340 2009 5 5 54956 -0.0591 0.5132 -0.65500 2009 5 6 54957 -0.0563 0.5151 -0.65656 2009 5 7 54958 -0.0534 0.5169 -0.65801 2009 5 8 54959 -0.0506 0.5186 -0.65925 2009 5 9 54960 -0.0477 0.5203 -0.66027 2009 5 10 54961 -0.0447 0.5220 -0.66112 2009 5 11 54962 -0.0418 0.5236 -0.66186 2009 5 12 54963 -0.0388 0.5252 -0.66252 2009 5 13 54964 -0.0358 0.5267 -0.66314 2009 5 14 54965 -0.0328 0.5282 -0.66381 2009 5 15 54966 -0.0298 0.5296 -0.66464 2009 5 16 54967 -0.0267 0.5310 -0.66558 2009 5 17 54968 -0.0236 0.5324 -0.66665 2009 5 18 54969 -0.0205 0.5337 -0.66783 2009 5 19 54970 -0.0174 0.5349 -0.66909 2009 5 20 54971 -0.0142 0.5361 -0.67038 2009 5 21 54972 -0.0111 0.5373 -0.67161 2009 5 22 54973 -0.0079 0.5384 -0.67273 2009 5 23 54974 -0.0047 0.5394 -0.67368 2009 5 24 54975 -0.0015 0.5404 -0.67439 2009 5 25 54976 0.0018 0.5414 -0.67487 2009 5 26 54977 0.0050 0.5423 -0.67521 2009 5 27 54978 0.0083 0.5432 -0.67557 2009 5 28 54979 0.0115 0.5440 -0.67604 2009 5 29 54980 0.0148 0.5448 -0.67668 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) 54595 -56.93 .22 -8.72 .12 54596 -56.44 .23 -8.81 .16 54597 -56.22 .18 -8.76 .13 54598 -56.33 .74 -8.53 .34 54599 -56.67 .74 -8.19 .34 54600 -56.96 .13 -7.94 .34 54601 -57.01 .13 -7.88 .34 54602 -56.87 .13 -7.89 .34 54603 -56.73 .17 -7.90 .34 54604 -56.68 .26 -7.99 .34 54605 -56.72 .26 -8.26 .34 54606 -56.84 .40 -8.63 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54595 0.237 0.088 -0.210 0.120 54596 0.264 0.091 -0.234 0.160 54597 0.280 0.072 -0.241 0.130 54598 0.294 0.294 -0.241 0.340 54599 0.296 0.294 -0.201 0.340 54600 0.281 0.052 -0.146 0.340 54601 0.259 0.052 -0.129 0.340 54602 0.243 0.052 -0.130 0.340 54603 0.231 0.068 -0.137 0.340 54604 0.226 0.103 -0.147 0.340 54605 0.234 0.103 -0.171 0.340 54606 0.241 0.159 -0.209 0.340 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.