********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 July 2008 Vol. XXI No. 027 ______________________________________________________________________ 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 6 27 54644 .20189 .00010 .50581 .00009 -.442044 .000011 8 6 28 54645 .20424 .00009 .50404 .00009 -.442980 .000010 8 6 29 54646 .20653 .00009 .50208 .00009 -.443778 .000011 8 6 30 54647 .20880 .00009 .49986 .00009 -.444385 .000011 8 7 1 54648 .21120 .00009 .49753 .00009 -.444740 .000010 8 7 2 54649 .21362 .00009 .49534 .00009 -.444912 .000048 8 7 3 54650 .21607 .00009 .49321 .00009 -.445074 .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 = .0580 + .0703 cos A + .1037 sin A + .0804 cos C + .0347 sin C y = .3544 + .1006 cos A - .0576 sin A + .0347 cos C - .0804 sin C UT1-UTC = -.4451 - .00080 (MJD - 54658) - (UT2-UT1) where A = 2*pi*(MJD-54650)/365.25 and C = 2*pi*(MJD-54650)/435. TAI-UTC(MJD 54651) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54650)**0.80 S t = 0.00025 (MJD-54650)**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 4 54651 0.2184 0.4910 -0.44535 2008 7 5 54652 0.2208 0.4888 -0.44580 2008 7 6 54653 0.2231 0.4865 -0.44644 2008 7 7 54654 0.2254 0.4841 -0.44719 2008 7 8 54655 0.2277 0.4817 -0.44795 2008 7 9 54656 0.2299 0.4792 -0.44861 2008 7 10 54657 0.2320 0.4766 -0.44914 2008 7 11 54658 0.2342 0.4741 -0.44948 2008 7 12 54659 0.2363 0.4715 -0.44961 2008 7 13 54660 0.2383 0.4688 -0.44956 2008 7 14 54661 0.2403 0.4662 -0.44938 2008 7 15 54662 0.2423 0.4635 -0.44914 2008 7 16 54663 0.2442 0.4607 -0.44890 2008 7 17 54664 0.2461 0.4579 -0.44873 2008 7 18 54665 0.2479 0.4552 -0.44868 2008 7 19 54666 0.2497 0.4523 -0.44879 2008 7 20 54667 0.2514 0.4495 -0.44910 2008 7 21 54668 0.2531 0.4466 -0.44959 2008 7 22 54669 0.2547 0.4437 -0.45024 2008 7 23 54670 0.2563 0.4408 -0.45100 2008 7 24 54671 0.2578 0.4378 -0.45177 2008 7 25 54672 0.2593 0.4348 -0.45245 2008 7 26 54673 0.2607 0.4318 -0.45294 2008 7 27 54674 0.2621 0.4288 -0.45320 2008 7 28 54675 0.2634 0.4258 -0.45323 2008 7 29 54676 0.2647 0.4227 -0.45310 2008 7 30 54677 0.2660 0.4196 -0.45293 2008 7 31 54678 0.2671 0.4165 -0.45287 2008 8 1 54679 0.2683 0.4134 -0.45301 2008 8 2 54680 0.2694 0.4102 -0.45340 2008 8 3 54681 0.2704 0.4071 -0.45399 2008 8 4 54682 0.2713 0.4039 -0.45469 2008 8 5 54683 0.2723 0.4007 -0.45539 2008 8 6 54684 0.2731 0.3975 -0.45599 2008 8 7 54685 0.2739 0.3943 -0.45644 2008 8 8 54686 0.2747 0.3911 -0.45670 2008 8 9 54687 0.2754 0.3878 -0.45678 2008 8 10 54688 0.2761 0.3846 -0.45671 2008 8 11 54689 0.2766 0.3813 -0.45652 2008 8 12 54690 0.2772 0.3780 -0.45628 2008 8 13 54691 0.2777 0.3747 -0.45606 2008 8 14 54692 0.2781 0.3715 -0.45594 2008 8 15 54693 0.2785 0.3682 -0.45599 2008 8 16 54694 0.2788 0.3649 -0.45625 2008 8 17 54695 0.2791 0.3615 -0.45673 2008 8 18 54696 0.2793 0.3582 -0.45743 2008 8 19 54697 0.2794 0.3549 -0.45827 2008 8 20 54698 0.2795 0.3516 -0.45916 2008 8 21 54699 0.2796 0.3483 -0.45998 2008 8 22 54700 0.2796 0.3449 -0.46063 2008 8 23 54701 0.2795 0.3416 -0.46105 2008 8 24 54702 0.2794 0.3383 -0.46124 2008 8 25 54703 0.2792 0.3350 -0.46125 2008 8 26 54704 0.2790 0.3317 -0.46118 2008 8 27 54705 0.2787 0.3283 -0.46118 2008 8 28 54706 0.2783 0.3250 -0.46136 2008 8 29 54707 0.2779 0.3217 -0.46178 2008 8 30 54708 0.2775 0.3184 -0.46245 2008 8 31 54709 0.2770 0.3151 -0.46329 2008 9 1 54710 0.2764 0.3118 -0.46420 2008 9 2 54711 0.2758 0.3086 -0.46506 2008 9 3 54712 0.2751 0.3053 -0.46580 2008 9 4 54713 0.2744 0.3020 -0.46635 2008 9 5 54714 0.2736 0.2988 -0.46669 2008 9 6 54715 0.2728 0.2955 -0.46685 2008 9 7 54716 0.2719 0.2923 -0.46686 2008 9 8 54717 0.2709 0.2891 -0.46679 2008 9 9 54718 0.2699 0.2859 -0.46671 2008 9 10 54719 0.2689 0.2827 -0.46669 2008 9 11 54720 0.2678 0.2795 -0.46682 2008 9 12 54721 0.2666 0.2764 -0.46714 2008 9 13 54722 0.2654 0.2733 -0.46770 2008 9 14 54723 0.2641 0.2701 -0.46851 2008 9 15 54724 0.2628 0.2670 -0.46950 2008 9 16 54725 0.2615 0.2640 -0.47060 2008 9 17 54726 0.2600 0.2609 -0.47169 2008 9 18 54727 0.2586 0.2579 -0.47264 2008 9 19 54728 0.2570 0.2549 -0.47338 2008 9 20 54729 0.2555 0.2519 -0.47387 2008 9 21 54730 0.2539 0.2489 -0.47418 2008 9 22 54731 0.2522 0.2459 -0.47440 2008 9 23 54732 0.2505 0.2430 -0.47467 2008 9 24 54733 0.2487 0.2401 -0.47510 2008 9 25 54734 0.2469 0.2373 -0.47576 2008 9 26 54735 0.2450 0.2344 -0.47666 2008 9 27 54736 0.2431 0.2316 -0.47777 2008 9 28 54737 0.2412 0.2288 -0.47899 2008 9 29 54738 0.2392 0.2261 -0.48023 2008 9 30 54739 0.2371 0.2233 -0.48138 2008 10 1 54740 0.2350 0.2207 -0.48238 2008 10 2 54741 0.2329 0.2180 -0.48319 2008 10 3 54742 0.2307 0.2154 -0.48382 2008 10 4 54743 0.2285 0.2128 -0.48429 2008 10 5 54744 0.2262 0.2102 -0.48467 2008 10 6 54745 0.2239 0.2077 -0.48501 2008 10 7 54746 0.2216 0.2052 -0.48541 2008 10 8 54747 0.2192 0.2027 -0.48592 2008 10 9 54748 0.2167 0.2003 -0.48660 2008 10 10 54749 0.2143 0.1979 -0.48751 2008 10 11 54750 0.2118 0.1956 -0.48866 2008 10 12 54751 0.2092 0.1932 -0.49004 2008 10 13 54752 0.2066 0.1910 -0.49157 2008 10 14 54753 0.2040 0.1887 -0.49316 2008 10 15 54754 0.2013 0.1865 -0.49468 2008 10 16 54755 0.1986 0.1844 -0.49600 2008 10 17 54756 0.1959 0.1823 -0.49707 2008 10 18 54757 0.1931 0.1802 -0.49790 2008 10 19 54758 0.1903 0.1782 -0.49860 2008 10 20 54759 0.1875 0.1762 -0.49933 2008 10 21 54760 0.1846 0.1742 -0.50017 2008 10 22 54761 0.1817 0.1723 -0.50121 2008 10 23 54762 0.1788 0.1705 -0.50247 2008 10 24 54763 0.1758 0.1687 -0.50390 2008 10 25 54764 0.1728 0.1669 -0.50545 2008 10 26 54765 0.1698 0.1652 -0.50700 2008 10 27 54766 0.1667 0.1635 -0.50848 2008 10 28 54767 0.1637 0.1619 -0.50981 2008 10 29 54768 0.1605 0.1603 -0.51094 2008 10 30 54769 0.1574 0.1588 -0.51187 2008 10 31 54770 0.1543 0.1573 -0.51261 2008 11 1 54771 0.1511 0.1558 -0.51322 2008 11 2 54772 0.1479 0.1544 -0.51377 2008 11 3 54773 0.1447 0.1531 -0.51432 2008 11 4 54774 0.1414 0.1518 -0.51495 2008 11 5 54775 0.1381 0.1505 -0.51571 2008 11 6 54776 0.1348 0.1493 -0.51666 2008 11 7 54777 0.1315 0.1482 -0.51781 2008 11 8 54778 0.1282 0.1471 -0.51917 2008 11 9 54779 0.1249 0.1461 -0.52069 2008 11 10 54780 0.1215 0.1451 -0.52230 2008 11 11 54781 0.1181 0.1441 -0.52389 2008 11 12 54782 0.1147 0.1432 -0.52534 2008 11 13 54783 0.1113 0.1424 -0.52656 2008 11 14 54784 0.1079 0.1416 -0.52752 2008 11 15 54785 0.1045 0.1408 -0.52829 2008 11 16 54786 0.1011 0.1402 -0.52899 2008 11 17 54787 0.0976 0.1395 -0.52976 2008 11 18 54788 0.0941 0.1389 -0.53070 2008 11 19 54789 0.0907 0.1384 -0.53186 2008 11 20 54790 0.0872 0.1379 -0.53319 2008 11 21 54791 0.0837 0.1375 -0.53463 2008 11 22 54792 0.0802 0.1371 -0.53608 2008 11 23 54793 0.0767 0.1368 -0.53744 2008 11 24 54794 0.0732 0.1366 -0.53866 2008 11 25 54795 0.0697 0.1364 -0.53968 2008 11 26 54796 0.0662 0.1362 -0.54050 2008 11 27 54797 0.0627 0.1361 -0.54113 2008 11 28 54798 0.0592 0.1360 -0.54161 2008 11 29 54799 0.0557 0.1360 -0.54201 2008 11 30 54800 0.0522 0.1361 -0.54238 2008 12 1 54801 0.0487 0.1362 -0.54280 2008 12 2 54802 0.0451 0.1364 -0.54334 2008 12 3 54803 0.0416 0.1366 -0.54404 2008 12 4 54804 0.0382 0.1369 -0.54491 2008 12 5 54805 0.0347 0.1372 -0.54597 2008 12 6 54806 0.0312 0.1376 -0.54718 2008 12 7 54807 0.0277 0.1380 -0.54849 2008 12 8 54808 0.0242 0.1385 -0.54981 2008 12 9 54809 0.0208 0.1390 -0.55105 2008 12 10 54810 0.0173 0.1396 -0.55210 2008 12 11 54811 0.0139 0.1402 -0.55291 2008 12 12 54812 0.0105 0.1409 -0.55351 2008 12 13 54813 0.0070 0.1417 -0.55399 2008 12 14 54814 0.0036 0.1425 -0.55449 2008 12 15 54815 0.0002 0.1433 -0.55514 2008 12 16 54816 -0.0031 0.1442 -0.55600 2008 12 17 54817 -0.0065 0.1452 -0.55708 2008 12 18 54818 -0.0098 0.1462 -0.55829 2008 12 19 54819 -0.0131 0.1472 -0.55953 2008 12 20 54820 -0.0164 0.1483 -0.56067 2008 12 21 54821 -0.0197 0.1495 -0.56166 2008 12 22 54822 -0.0230 0.1507 -0.56244 2008 12 23 54823 -0.0262 0.1519 -0.56301 2008 12 24 54824 -0.0295 0.1532 -0.56338 2008 12 25 54825 -0.0327 0.1546 -0.56359 2008 12 26 54826 -0.0358 0.1560 -0.56370 2008 12 27 54827 -0.0390 0.1574 -0.56377 2008 12 28 54828 -0.0421 0.1589 -0.56388 2008 12 29 54829 -0.0452 0.1605 -0.56409 2008 12 30 54830 -0.0483 0.1621 -0.56445 2008 12 31 54831 -0.0513 0.1637 -0.56498 2009 1 1 54832 -0.0543 0.1654 -0.56568 2009 1 2 54833 -0.0573 0.1671 -0.56652 2009 1 3 54834 -0.0603 0.1689 -0.56746 2009 1 4 54835 -0.0632 0.1707 -0.56843 2009 1 5 54836 -0.0661 0.1726 -0.56935 2009 1 6 54837 -0.0690 0.1745 -0.57012 2009 1 7 54838 -0.0718 0.1765 -0.57071 2009 1 8 54839 -0.0746 0.1784 -0.57112 2009 1 9 54840 -0.0774 0.1805 -0.57142 2009 1 10 54841 -0.0801 0.1826 -0.57174 2009 1 11 54842 -0.0828 0.1847 -0.57224 2009 1 12 54843 -0.0854 0.1869 -0.57301 2009 1 13 54844 -0.0881 0.1891 -0.57410 2009 1 14 54845 -0.0906 0.1913 -0.57543 2009 1 15 54846 -0.0932 0.1936 -0.57688 2009 1 16 54847 -0.0957 0.1959 -0.57831 2009 1 17 54848 -0.0982 0.1983 -0.57960 2009 1 18 54849 -0.1006 0.2007 -0.58067 2009 1 19 54850 -0.1030 0.2031 -0.58151 2009 1 20 54851 -0.1053 0.2056 -0.58215 2009 1 21 54852 -0.1076 0.2081 -0.58261 2009 1 22 54853 -0.1099 0.2106 -0.58296 2009 1 23 54854 -0.1121 0.2132 -0.58326 2009 1 24 54855 -0.1143 0.2158 -0.58357 2009 1 25 54856 -0.1164 0.2185 -0.58396 2009 1 26 54857 -0.1185 0.2212 -0.58447 2009 1 27 54858 -0.1205 0.2239 -0.58513 2009 1 28 54859 -0.1225 0.2266 -0.58598 2009 1 29 54860 -0.1245 0.2294 -0.58698 2009 1 30 54861 -0.1264 0.2322 -0.58810 2009 1 31 54862 -0.1282 0.2350 -0.58925 2009 2 1 54863 -0.1300 0.2379 -0.59033 2009 2 2 54864 -0.1318 0.2408 -0.59126 2009 2 3 54865 -0.1335 0.2437 -0.59197 2009 2 4 54866 -0.1351 0.2466 -0.59245 2009 2 5 54867 -0.1367 0.2496 -0.59276 2009 2 6 54868 -0.1383 0.2526 -0.59300 2009 2 7 54869 -0.1398 0.2556 -0.59332 2009 2 8 54870 -0.1413 0.2586 -0.59386 2009 2 9 54871 -0.1427 0.2617 -0.59468 2009 2 10 54872 -0.1440 0.2647 -0.59576 2009 2 11 54873 -0.1453 0.2678 -0.59702 2009 2 12 54874 -0.1466 0.2710 -0.59839 2009 2 13 54875 -0.1478 0.2741 -0.59973 2009 2 14 54876 -0.1489 0.2773 -0.60096 2009 2 15 54877 -0.1500 0.2804 -0.60203 2009 2 16 54878 -0.1511 0.2836 -0.60298 2009 2 17 54879 -0.1521 0.2868 -0.60380 2009 2 18 54880 -0.1530 0.2901 -0.60453 2009 2 19 54881 -0.1539 0.2933 -0.60519 2009 2 20 54882 -0.1547 0.2965 -0.60586 2009 2 21 54883 -0.1555 0.2998 -0.60658 2009 2 22 54884 -0.1562 0.3031 -0.60744 2009 2 23 54885 -0.1569 0.3064 -0.60851 2009 2 24 54886 -0.1575 0.3097 -0.60981 2009 2 25 54887 -0.1580 0.3130 -0.61135 2009 2 26 54888 -0.1585 0.3163 -0.61307 2009 2 27 54889 -0.1590 0.3196 -0.61487 2009 2 28 54890 -0.1594 0.3229 -0.61663 2009 3 1 54891 -0.1597 0.3263 -0.61822 2009 3 2 54892 -0.1600 0.3296 -0.61956 2009 3 3 54893 -0.1602 0.3330 -0.62063 2009 3 4 54894 -0.1604 0.3363 -0.62148 2009 3 5 54895 -0.1605 0.3397 -0.62220 2009 3 6 54896 -0.1606 0.3430 -0.62293 2009 3 7 54897 -0.1606 0.3464 -0.62374 2009 3 8 54898 -0.1605 0.3497 -0.62471 2009 3 9 54899 -0.1604 0.3531 -0.62589 2009 3 10 54900 -0.1602 0.3564 -0.62726 2009 3 11 54901 -0.1600 0.3598 -0.62875 2009 3 12 54902 -0.1597 0.3631 -0.63024 2009 3 13 54903 -0.1594 0.3665 -0.63161 2009 3 14 54904 -0.1590 0.3698 -0.63278 2009 3 15 54905 -0.1586 0.3731 -0.63366 2009 3 16 54906 -0.1581 0.3764 -0.63422 2009 3 17 54907 -0.1575 0.3798 -0.63456 2009 3 18 54908 -0.1569 0.3831 -0.63479 2009 3 19 54909 -0.1563 0.3864 -0.63505 2009 3 20 54910 -0.1556 0.3897 -0.63537 2009 3 21 54911 -0.1548 0.3929 -0.63582 2009 3 22 54912 -0.1540 0.3962 -0.63650 2009 3 23 54913 -0.1531 0.3995 -0.63742 2009 3 24 54914 -0.1522 0.4027 -0.63854 2009 3 25 54915 -0.1512 0.4059 -0.63978 2009 3 26 54916 -0.1502 0.4091 -0.64108 2009 3 27 54917 -0.1491 0.4123 -0.64243 2009 3 28 54918 -0.1480 0.4155 -0.64376 2009 3 29 54919 -0.1468 0.4187 -0.64492 2009 3 30 54920 -0.1455 0.4218 -0.64582 2009 3 31 54921 -0.1442 0.4249 -0.64649 2009 4 1 54922 -0.1429 0.4280 -0.64706 2009 4 2 54923 -0.1415 0.4311 -0.64770 2009 4 3 54924 -0.1401 0.4342 -0.64851 2009 4 4 54925 -0.1386 0.4372 -0.64953 2009 4 5 54926 -0.1370 0.4402 -0.65079 2009 4 6 54927 -0.1354 0.4432 -0.65222 2009 4 7 54928 -0.1338 0.4462 -0.65378 2009 4 8 54929 -0.1321 0.4492 -0.65533 2009 4 9 54930 -0.1304 0.4521 -0.65680 2009 4 10 54931 -0.1286 0.4550 -0.65810 2009 4 11 54932 -0.1268 0.4578 -0.65915 2009 4 12 54933 -0.1249 0.4607 -0.65995 2009 4 13 54934 -0.1230 0.4635 -0.66049 2009 4 14 54935 -0.1210 0.4663 -0.66088 2009 4 15 54936 -0.1190 0.4690 -0.66124 2009 4 16 54937 -0.1169 0.4717 -0.66165 2009 4 17 54938 -0.1149 0.4744 -0.66219 2009 4 18 54939 -0.1127 0.4771 -0.66296 2009 4 19 54940 -0.1105 0.4797 -0.66397 2009 4 20 54941 -0.1083 0.4823 -0.66519 2009 4 21 54942 -0.1060 0.4849 -0.66658 2009 4 22 54943 -0.1037 0.4874 -0.66813 2009 4 23 54944 -0.1014 0.4899 -0.66971 2009 4 24 54945 -0.0990 0.4923 -0.67121 2009 4 25 54946 -0.0966 0.4947 -0.67256 2009 4 26 54947 -0.0941 0.4971 -0.67372 2009 4 27 54948 -0.0916 0.4995 -0.67465 2009 4 28 54949 -0.0891 0.5018 -0.67531 2009 4 29 54950 -0.0865 0.5040 -0.67594 2009 4 30 54951 -0.0839 0.5062 -0.67667 2009 5 1 54952 -0.0813 0.5084 -0.67759 2009 5 2 54953 -0.0786 0.5106 -0.67872 2009 5 3 54954 -0.0759 0.5127 -0.68001 2009 5 4 54955 -0.0731 0.5147 -0.68144 2009 5 5 54956 -0.0703 0.5168 -0.68291 2009 5 6 54957 -0.0675 0.5187 -0.68429 2009 5 7 54958 -0.0647 0.5207 -0.68550 2009 5 8 54959 -0.0618 0.5226 -0.68647 2009 5 9 54960 -0.0589 0.5244 -0.68721 2009 5 10 54961 -0.0560 0.5262 -0.68773 2009 5 11 54962 -0.0531 0.5280 -0.68803 2009 5 12 54963 -0.0501 0.5297 -0.68826 2009 5 13 54964 -0.0471 0.5314 -0.68852 2009 5 14 54965 -0.0440 0.5330 -0.68882 2009 5 15 54966 -0.0410 0.5346 -0.68923 2009 5 16 54967 -0.0379 0.5361 -0.68979 2009 5 17 54968 -0.0348 0.5376 -0.69053 2009 5 18 54969 -0.0317 0.5390 -0.69141 2009 5 19 54970 -0.0285 0.5404 -0.69242 2009 5 20 54971 -0.0254 0.5417 -0.69351 2009 5 21 54972 -0.0222 0.5430 -0.69454 2009 5 22 54973 -0.0190 0.5443 -0.69540 2009 5 23 54974 -0.0158 0.5455 -0.69596 2009 5 24 54975 -0.0125 0.5466 -0.69622 2009 5 25 54976 -0.0093 0.5477 -0.69623 2009 5 26 54977 -0.0060 0.5488 -0.69610 2009 5 27 54978 -0.0027 0.5498 -0.69601 2009 5 28 54979 0.0006 0.5507 -0.69607 2009 5 29 54980 0.0039 0.5516 -0.69637 2009 5 30 54981 0.0072 0.5525 -0.69691 2009 5 31 54982 0.0106 0.5532 -0.69764 2009 6 1 54983 0.0139 0.5540 -0.69846 2009 6 2 54984 0.0173 0.5547 -0.69922 2009 6 3 54985 0.0206 0.5553 -0.69981 2009 6 4 54986 0.0240 0.5559 -0.70015 2009 6 5 54987 0.0274 0.5565 -0.70021 2009 6 6 54988 0.0308 0.5569 -0.69997 2009 6 7 54989 0.0342 0.5574 -0.69958 2009 6 8 54990 0.0375 0.5578 -0.69910 2009 6 9 54991 0.0409 0.5581 -0.69862 2009 6 10 54992 0.0443 0.5584 -0.69824 2009 6 11 54993 0.0477 0.5586 -0.69796 2009 6 12 54994 0.0512 0.5588 -0.69781 2009 6 13 54995 0.0546 0.5589 -0.69784 2009 6 14 54996 0.0580 0.5590 -0.69809 2009 6 15 54997 0.0614 0.5590 -0.69852 2009 6 16 54998 0.0648 0.5590 -0.69905 2009 6 17 54999 0.0682 0.5589 -0.69961 2009 6 18 55000 0.0715 0.5588 -0.70009 2009 6 19 55001 0.0749 0.5586 -0.70042 2009 6 20 55002 0.0783 0.5584 -0.70054 2009 6 21 55003 0.0817 0.5581 -0.70041 2009 6 22 55004 0.0850 0.5577 -0.70011 2009 6 23 55005 0.0884 0.5573 -0.69981 2009 6 24 55006 0.0917 0.5569 -0.69964 2009 6 25 55007 0.0951 0.5564 -0.69966 2009 6 26 55008 0.0984 0.5559 -0.69988 2009 6 27 55009 0.1017 0.5553 -0.70027 2009 6 28 55010 0.1050 0.5546 -0.70074 2009 6 29 55011 0.1083 0.5539 -0.70118 2009 6 30 55012 0.1116 0.5532 -0.70148 2009 7 1 55013 0.1148 0.5524 -0.70158 2009 7 2 55014 0.1181 0.5515 -0.70146 2009 7 3 55015 0.1213 0.5507 -0.70113 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) 54629 -60.07 .15 -7.66 .23 54630 -59.96 .15 -7.82 .23 54631 -59.83 .74 -7.95 .12 54632 -59.90 .11 -8.03 .34 54633 -60.14 .11 -8.20 .34 54634 -60.42 .11 -8.48 .34 54635 -60.65 .34 -8.66 .34 54636 -60.78 .34 -8.57 .34 54637 -60.81 .34 -8.27 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54629 0.192 0.060 -0.165 0.230 54630 0.176 0.060 -0.174 0.230 54631 0.164 0.294 -0.202 0.120 54632 0.161 0.044 -0.219 0.340 54633 0.170 0.044 -0.240 0.340 54634 0.186 0.044 -0.276 0.340 54635 0.202 0.135 -0.294 0.340 54636 0.211 0.135 -0.288 0.340 54637 0.216 0.135 -0.269 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.