********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 March 2008 Vol. XXI No. 013 ______________________________________________________________________ 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 3 21 54546 -.08891 .00009 .46387 .00009 -.349714 .000015 8 3 22 54547 -.08617 .00009 .46698 .00010 -.351205 .000016 8 3 23 54548 -.08339 .00009 .47016 .00010 -.352668 .000019 8 3 24 54549 -.08077 .00009 .47311 .00009 -.354027 .000019 8 3 25 54550 -.07846 .00009 .47582 .00009 -.355268 .000019 8 3 26 54551 -.07625 .00009 .47831 .00009 -.356324 .000018 8 3 27 54552 -.07417 .00009 .48071 .00009 -.357165 .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 = .0732 - .0932 cos A + .0324 sin A - .0504 cos C + .0976 sin C y = .3596 + .0277 cos A + .0885 sin A + .0976 cos C + .0504 sin C UT1-UTC = -.3371 - .00081 (MJD - 54560) - (UT2-UT1) where A = 2*pi*(MJD-54552)/365.25 and C = 2*pi*(MJD-54552)/435. TAI-UTC(MJD 54553) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54552)**0.80 S t = 0.00025 (MJD-54552)**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 3 28 54553 -0.0719 0.4830 -0.35788 2008 3 29 54554 -0.0697 0.4852 -0.35854 2008 3 30 54555 -0.0674 0.4874 -0.35923 2008 3 31 54556 -0.0650 0.4895 -0.36004 2008 4 1 54557 -0.0625 0.4916 -0.36103 2008 4 2 54558 -0.0600 0.4937 -0.36225 2008 4 3 54559 -0.0575 0.4957 -0.36376 2008 4 4 54560 -0.0550 0.4976 -0.36551 2008 4 5 54561 -0.0525 0.4995 -0.36740 2008 4 6 54562 -0.0500 0.5014 -0.36928 2008 4 7 54563 -0.0474 0.5032 -0.37101 2008 4 8 54564 -0.0448 0.5050 -0.37247 2008 4 9 54565 -0.0421 0.5067 -0.37365 2008 4 10 54566 -0.0394 0.5084 -0.37459 2008 4 11 54567 -0.0367 0.5101 -0.37538 2008 4 12 54568 -0.0340 0.5117 -0.37614 2008 4 13 54569 -0.0312 0.5133 -0.37697 2008 4 14 54570 -0.0285 0.5148 -0.37796 2008 4 15 54571 -0.0256 0.5163 -0.37910 2008 4 16 54572 -0.0228 0.5177 -0.38036 2008 4 17 54573 -0.0200 0.5191 -0.38169 2008 4 18 54574 -0.0171 0.5204 -0.38301 2008 4 19 54575 -0.0142 0.5218 -0.38424 2008 4 20 54576 -0.0113 0.5230 -0.38531 2008 4 21 54577 -0.0083 0.5242 -0.38618 2008 4 22 54578 -0.0053 0.5254 -0.38685 2008 4 23 54579 -0.0024 0.5265 -0.38735 2008 4 24 54580 0.0006 0.5276 -0.38771 2008 4 25 54581 0.0037 0.5287 -0.38802 2008 4 26 54582 0.0067 0.5296 -0.38833 2008 4 27 54583 0.0098 0.5306 -0.38873 2008 4 28 54584 0.0128 0.5315 -0.38929 2008 4 29 54585 0.0159 0.5323 -0.39007 2008 4 30 54586 0.0190 0.5331 -0.39111 2008 5 1 54587 0.0221 0.5339 -0.39241 2008 5 2 54588 0.0253 0.5346 -0.39390 2008 5 3 54589 0.0284 0.5353 -0.39547 2008 5 4 54590 0.0316 0.5359 -0.39698 2008 5 5 54591 0.0347 0.5365 -0.39830 2008 5 6 54592 0.0379 0.5370 -0.39933 2008 5 7 54593 0.0411 0.5375 -0.40009 2008 5 8 54594 0.0443 0.5379 -0.40067 2008 5 9 54595 0.0475 0.5382 -0.40123 2008 5 10 54596 0.0507 0.5386 -0.40187 2008 5 11 54597 0.0539 0.5388 -0.40269 2008 5 12 54598 0.0571 0.5391 -0.40370 2008 5 13 54599 0.0603 0.5393 -0.40485 2008 5 14 54600 0.0635 0.5394 -0.40607 2008 5 15 54601 0.0668 0.5395 -0.40728 2008 5 16 54602 0.0700 0.5395 -0.40841 2008 5 17 54603 0.0732 0.5395 -0.40939 2008 5 18 54604 0.0764 0.5394 -0.41019 2008 5 19 54605 0.0797 0.5393 -0.41080 2008 5 20 54606 0.0829 0.5391 -0.41123 2008 5 21 54607 0.0861 0.5389 -0.41150 2008 5 22 54608 0.0893 0.5387 -0.41168 2008 5 23 54609 0.0925 0.5384 -0.41183 2008 5 24 54610 0.0957 0.5380 -0.41202 2008 5 25 54611 0.0989 0.5376 -0.41233 2008 5 26 54612 0.1021 0.5371 -0.41280 2008 5 27 54613 0.1053 0.5366 -0.41347 2008 5 28 54614 0.1085 0.5361 -0.41434 2008 5 29 54615 0.1116 0.5355 -0.41538 2008 5 30 54616 0.1148 0.5348 -0.41650 2008 5 31 54617 0.1179 0.5341 -0.41759 2008 6 1 54618 0.1211 0.5334 -0.41852 2008 6 2 54619 0.1242 0.5326 -0.41919 2008 6 3 54620 0.1273 0.5317 -0.41957 2008 6 4 54621 0.1304 0.5308 -0.41972 2008 6 5 54622 0.1335 0.5299 -0.41978 2008 6 6 54623 0.1365 0.5289 -0.41988 2008 6 7 54624 0.1396 0.5279 -0.42014 2008 6 8 54625 0.1426 0.5268 -0.42062 2008 6 9 54626 0.1456 0.5257 -0.42127 2008 6 10 54627 0.1486 0.5245 -0.42203 2008 6 11 54628 0.1515 0.5233 -0.42279 2008 6 12 54629 0.1545 0.5220 -0.42347 2008 6 13 54630 0.1574 0.5207 -0.42400 2008 6 14 54631 0.1603 0.5194 -0.42434 2008 6 15 54632 0.1632 0.5180 -0.42446 2008 6 16 54633 0.1661 0.5165 -0.42438 2008 6 17 54634 0.1689 0.5150 -0.42413 2008 6 18 54635 0.1717 0.5135 -0.42377 2008 6 19 54636 0.1745 0.5119 -0.42335 2008 6 20 54637 0.1772 0.5103 -0.42296 2008 6 21 54638 0.1799 0.5087 -0.42267 2008 6 22 54639 0.1826 0.5070 -0.42253 2008 6 23 54640 0.1853 0.5052 -0.42258 2008 6 24 54641 0.1879 0.5035 -0.42282 2008 6 25 54642 0.1906 0.5016 -0.42322 2008 6 26 54643 0.1931 0.4998 -0.42372 2008 6 27 54644 0.1957 0.4979 -0.42422 2008 6 28 54645 0.1982 0.4959 -0.42462 2008 6 29 54646 0.2007 0.4940 -0.42481 2008 6 30 54647 0.2031 0.4920 -0.42475 2008 7 1 54648 0.2055 0.4899 -0.42445 2008 7 2 54649 0.2079 0.4878 -0.42401 2008 7 3 54650 0.2102 0.4857 -0.42357 2008 7 4 54651 0.2125 0.4835 -0.42326 2008 7 5 54652 0.2148 0.4813 -0.42317 2008 7 6 54653 0.2170 0.4791 -0.42331 2008 7 7 54654 0.2192 0.4768 -0.42360 2008 7 8 54655 0.2214 0.4745 -0.42394 2008 7 9 54656 0.2235 0.4722 -0.42423 2008 7 10 54657 0.2256 0.4698 -0.42438 2008 7 11 54658 0.2276 0.4674 -0.42435 2008 7 12 54659 0.2296 0.4650 -0.42412 2008 7 13 54660 0.2316 0.4625 -0.42369 2008 7 14 54661 0.2335 0.4601 -0.42309 2008 7 15 54662 0.2353 0.4575 -0.42238 2008 7 16 54663 0.2372 0.4550 -0.42162 2008 7 17 54664 0.2389 0.4524 -0.42090 2008 7 18 54665 0.2407 0.4498 -0.42028 2008 7 19 54666 0.2424 0.4472 -0.41983 2008 7 20 54667 0.2440 0.4445 -0.41960 2008 7 21 54668 0.2456 0.4418 -0.41957 2008 7 22 54669 0.2472 0.4391 -0.41974 2008 7 23 54670 0.2487 0.4364 -0.42002 2008 7 24 54671 0.2502 0.4336 -0.42033 2008 7 25 54672 0.2516 0.4309 -0.42056 2008 7 26 54673 0.2530 0.4281 -0.42063 2008 7 27 54674 0.2543 0.4253 -0.42048 2008 7 28 54675 0.2556 0.4224 -0.42011 2008 7 29 54676 0.2568 0.4196 -0.41960 2008 7 30 54677 0.2580 0.4167 -0.41906 2008 7 31 54678 0.2591 0.4138 -0.41863 2008 8 1 54679 0.2602 0.4109 -0.41841 2008 8 2 54680 0.2612 0.4079 -0.41846 2008 8 3 54681 0.2622 0.4050 -0.41872 2008 8 4 54682 0.2631 0.4020 -0.41911 2008 8 5 54683 0.2640 0.3990 -0.41950 2008 8 6 54684 0.2648 0.3960 -0.41980 2008 8 7 54685 0.2656 0.3930 -0.41994 2008 8 8 54686 0.2663 0.3900 -0.41987 2008 8 9 54687 0.2670 0.3870 -0.41962 2008 8 10 54688 0.2676 0.3840 -0.41920 2008 8 11 54689 0.2682 0.3809 -0.41866 2008 8 12 54690 0.2687 0.3779 -0.41807 2008 8 13 54691 0.2692 0.3748 -0.41751 2008 8 14 54692 0.2696 0.3717 -0.41704 2008 8 15 54693 0.2700 0.3686 -0.41675 2008 8 16 54694 0.2703 0.3655 -0.41667 2008 8 17 54695 0.2705 0.3625 -0.41684 2008 8 18 54696 0.2708 0.3594 -0.41724 2008 8 19 54697 0.2709 0.3563 -0.41779 2008 8 20 54698 0.2710 0.3532 -0.41841 2008 8 21 54699 0.2711 0.3501 -0.41897 2008 8 22 54700 0.2711 0.3470 -0.41939 2008 8 23 54701 0.2710 0.3438 -0.41959 2008 8 24 54702 0.2709 0.3407 -0.41958 2008 8 25 54703 0.2707 0.3376 -0.41941 2008 8 26 54704 0.2705 0.3345 -0.41919 2008 8 27 54705 0.2703 0.3314 -0.41906 2008 8 28 54706 0.2699 0.3283 -0.41911 2008 8 29 54707 0.2696 0.3253 -0.41941 2008 8 30 54708 0.2692 0.3222 -0.41997 2008 8 31 54709 0.2687 0.3191 -0.42072 2008 9 1 54710 0.2682 0.3160 -0.42153 2008 9 2 54711 0.2676 0.3130 -0.42231 2008 9 3 54712 0.2670 0.3099 -0.42296 2008 9 4 54713 0.2663 0.3069 -0.42343 2008 9 5 54714 0.2655 0.3038 -0.42369 2008 9 6 54715 0.2648 0.3008 -0.42378 2008 9 7 54716 0.2639 0.2978 -0.42374 2008 9 8 54717 0.2630 0.2948 -0.42362 2008 9 9 54718 0.2621 0.2918 -0.42351 2008 9 10 54719 0.2611 0.2888 -0.42347 2008 9 11 54720 0.2601 0.2859 -0.42359 2008 9 12 54721 0.2590 0.2829 -0.42391 2008 9 13 54722 0.2578 0.2800 -0.42448 2008 9 14 54723 0.2567 0.2771 -0.42530 2008 9 15 54724 0.2554 0.2742 -0.42631 2008 9 16 54725 0.2541 0.2713 -0.42744 2008 9 17 54726 0.2528 0.2685 -0.42857 2008 9 18 54727 0.2514 0.2656 -0.42956 2008 9 19 54728 0.2500 0.2628 -0.43034 2008 9 20 54729 0.2485 0.2600 -0.43087 2008 9 21 54730 0.2470 0.2573 -0.43122 2008 9 22 54731 0.2454 0.2545 -0.43148 2008 9 23 54732 0.2438 0.2518 -0.43177 2008 9 24 54733 0.2422 0.2491 -0.43222 2008 9 25 54734 0.2405 0.2464 -0.43289 2008 9 26 54735 0.2387 0.2438 -0.43379 2008 9 27 54736 0.2369 0.2412 -0.43489 2008 9 28 54737 0.2351 0.2386 -0.43608 2008 9 29 54738 0.2332 0.2360 -0.43727 2008 9 30 54739 0.2313 0.2335 -0.43835 2008 10 1 54740 0.2293 0.2310 -0.43925 2008 10 2 54741 0.2273 0.2285 -0.43992 2008 10 3 54742 0.2253 0.2261 -0.44038 2008 10 4 54743 0.2232 0.2236 -0.44066 2008 10 5 54744 0.2210 0.2213 -0.44082 2008 10 6 54745 0.2189 0.2189 -0.44092 2008 10 7 54746 0.2167 0.2166 -0.44106 2008 10 8 54747 0.2144 0.2143 -0.44130 2008 10 9 54748 0.2121 0.2121 -0.44173 2008 10 10 54749 0.2098 0.2098 -0.44240 2008 10 11 54750 0.2074 0.2077 -0.44334 2008 10 12 54751 0.2050 0.2055 -0.44453 2008 10 13 54752 0.2026 0.2034 -0.44592 2008 10 14 54753 0.2001 0.2013 -0.44739 2008 10 15 54754 0.1976 0.1993 -0.44881 2008 10 16 54755 0.1951 0.1973 -0.45007 2008 10 17 54756 0.1925 0.1954 -0.45110 2008 10 18 54757 0.1899 0.1934 -0.45192 2008 10 19 54758 0.1873 0.1916 -0.45260 2008 10 20 54759 0.1847 0.1897 -0.45327 2008 10 21 54760 0.1820 0.1879 -0.45406 2008 10 22 54761 0.1792 0.1862 -0.45505 2008 10 23 54762 0.1765 0.1845 -0.45626 2008 10 24 54763 0.1737 0.1828 -0.45764 2008 10 25 54764 0.1709 0.1812 -0.45913 2008 10 26 54765 0.1681 0.1796 -0.46062 2008 10 27 54766 0.1652 0.1780 -0.46202 2008 10 28 54767 0.1623 0.1765 -0.46327 2008 10 29 54768 0.1594 0.1751 -0.46433 2008 10 30 54769 0.1565 0.1737 -0.46520 2008 10 31 54770 0.1535 0.1723 -0.46589 2008 11 1 54771 0.1506 0.1710 -0.46647 2008 11 2 54772 0.1476 0.1697 -0.46700 2008 11 3 54773 0.1445 0.1685 -0.46754 2008 11 4 54774 0.1415 0.1673 -0.46817 2008 11 5 54775 0.1384 0.1662 -0.46894 2008 11 6 54776 0.1354 0.1651 -0.46987 2008 11 7 54777 0.1323 0.1640 -0.47095 2008 11 8 54778 0.1292 0.1630 -0.47212 2008 11 9 54779 0.1260 0.1621 -0.47337 2008 11 10 54780 0.1229 0.1612 -0.47467 2008 11 11 54781 0.1197 0.1603 -0.47591 2008 11 12 54782 0.1166 0.1595 -0.47702 2008 11 13 54783 0.1134 0.1588 -0.47791 2008 11 14 54784 0.1102 0.1581 -0.47859 2008 11 15 54785 0.1070 0.1574 -0.47910 2008 11 16 54786 0.1038 0.1568 -0.47962 2008 11 17 54787 0.1006 0.1562 -0.48026 2008 11 18 54788 0.0973 0.1557 -0.48110 2008 11 19 54789 0.0941 0.1553 -0.48215 2008 11 20 54790 0.0909 0.1549 -0.48336 2008 11 21 54791 0.0876 0.1545 -0.48460 2008 11 22 54792 0.0844 0.1542 -0.48577 2008 11 23 54793 0.0811 0.1539 -0.48688 2008 11 24 54794 0.0778 0.1537 -0.48785 2008 11 25 54795 0.0746 0.1535 -0.48867 2008 11 26 54796 0.0713 0.1534 -0.48935 2008 11 27 54797 0.0680 0.1534 -0.48986 2008 11 28 54798 0.0648 0.1534 -0.49021 2008 11 29 54799 0.0615 0.1534 -0.49051 2008 11 30 54800 0.0582 0.1535 -0.49087 2008 12 1 54801 0.0550 0.1536 -0.49134 2008 12 2 54802 0.0517 0.1538 -0.49196 2008 12 3 54803 0.0485 0.1541 -0.49276 2008 12 4 54804 0.0452 0.1543 -0.49374 2008 12 5 54805 0.0420 0.1547 -0.49488 2008 12 6 54806 0.0388 0.1551 -0.49617 2008 12 7 54807 0.0355 0.1555 -0.49751 2008 12 8 54808 0.0323 0.1560 -0.49883 2008 12 9 54809 0.0291 0.1565 -0.50008 2008 12 10 54810 0.0259 0.1571 -0.50116 2008 12 11 54811 0.0227 0.1577 -0.50198 2008 12 12 54812 0.0196 0.1584 -0.50255 2008 12 13 54813 0.0164 0.1592 -0.50299 2008 12 14 54814 0.0133 0.1599 -0.50346 2008 12 15 54815 0.0101 0.1608 -0.50414 2008 12 16 54816 0.0070 0.1616 -0.50505 2008 12 17 54817 0.0039 0.1626 -0.50619 2008 12 18 54818 0.0008 0.1635 -0.50750 2008 12 19 54819 -0.0022 0.1646 -0.50883 2008 12 20 54820 -0.0053 0.1656 -0.51011 2008 12 21 54821 -0.0083 0.1667 -0.51125 2008 12 22 54822 -0.0113 0.1679 -0.51220 2008 12 23 54823 -0.0143 0.1691 -0.51293 2008 12 24 54824 -0.0173 0.1704 -0.51350 2008 12 25 54825 -0.0202 0.1717 -0.51393 2008 12 26 54826 -0.0231 0.1730 -0.51427 2008 12 27 54827 -0.0260 0.1744 -0.51465 2008 12 28 54828 -0.0289 0.1758 -0.51508 2008 12 29 54829 -0.0317 0.1773 -0.51560 2008 12 30 54830 -0.0345 0.1788 -0.51625 2008 12 31 54831 -0.0373 0.1804 -0.51711 2009 1 1 54832 -0.0401 0.1820 -0.51821 2009 1 2 54833 -0.0428 0.1836 -0.51946 2009 1 3 54834 -0.0455 0.1853 -0.52084 2009 1 4 54835 -0.0482 0.1871 -0.52229 2009 1 5 54836 -0.0509 0.1888 -0.52373 2009 1 6 54837 -0.0535 0.1907 -0.52503 2009 1 7 54838 -0.0561 0.1925 -0.52613 2009 1 8 54839 -0.0586 0.1944 -0.52703 2009 1 9 54840 -0.0611 0.1963 -0.52783 2009 1 10 54841 -0.0636 0.1983 -0.52859 2009 1 11 54842 -0.0660 0.2003 -0.52946 2009 1 12 54843 -0.0685 0.2024 -0.53051 2009 1 13 54844 -0.0708 0.2045 -0.53178 2009 1 14 54845 -0.0732 0.2066 -0.53323 2009 1 15 54846 -0.0755 0.2087 -0.53473 2009 1 16 54847 -0.0777 0.2109 -0.53619 2009 1 17 54848 -0.0800 0.2132 -0.53752 2009 1 18 54849 -0.0822 0.2154 -0.53864 2009 1 19 54850 -0.0843 0.2177 -0.53950 2009 1 20 54851 -0.0864 0.2201 -0.54013 2009 1 21 54852 -0.0885 0.2224 -0.54059 2009 1 22 54853 -0.0905 0.2248 -0.54090 2009 1 23 54854 -0.0925 0.2272 -0.54114 2009 1 24 54855 -0.0944 0.2297 -0.54144 2009 1 25 54856 -0.0963 0.2322 -0.54185 2009 1 26 54857 -0.0982 0.2347 -0.54244 2009 1 27 54858 -0.1000 0.2373 -0.54322 2009 1 28 54859 -0.1018 0.2398 -0.54416 2009 1 29 54860 -0.1035 0.2424 -0.54520 2009 1 30 54861 -0.1052 0.2451 -0.54635 2009 1 31 54862 -0.1068 0.2477 -0.54760 2009 2 1 54863 -0.1084 0.2504 -0.54886 2009 2 2 54864 -0.1100 0.2531 -0.55006 2009 2 3 54865 -0.1115 0.2558 -0.55107 2009 2 4 54866 -0.1129 0.2586 -0.55186 2009 2 5 54867 -0.1143 0.2613 -0.55252 2009 2 6 54868 -0.1157 0.2641 -0.55320 2009 2 7 54869 -0.1170 0.2670 -0.55404 2009 2 8 54870 -0.1182 0.2698 -0.55511 2009 2 9 54871 -0.1195 0.2727 -0.55642 2009 2 10 54872 -0.1206 0.2755 -0.55797 2009 2 11 54873 -0.1217 0.2784 -0.55970 2009 2 12 54874 -0.1228 0.2813 -0.56146 2009 2 13 54875 -0.1238 0.2843 -0.56316 2009 2 14 54876 -0.1248 0.2872 -0.56467 2009 2 15 54877 -0.1257 0.2902 -0.56588 2009 2 16 54878 -0.1266 0.2931 -0.56685 2009 2 17 54879 -0.1274 0.2961 -0.56774 2009 2 18 54880 -0.1281 0.2991 -0.56866 2009 2 19 54881 -0.1288 0.3021 -0.56954 2009 2 20 54882 -0.1295 0.3052 -0.57044 2009 2 21 54883 -0.1301 0.3082 -0.57142 2009 2 22 54884 -0.1307 0.3112 -0.57252 2009 2 23 54885 -0.1312 0.3143 -0.57384 2009 2 24 54886 -0.1316 0.3173 -0.57540 2009 2 25 54887 -0.1320 0.3204 -0.57713 2009 2 26 54888 -0.1324 0.3235 -0.57896 2009 2 27 54889 -0.1327 0.3266 -0.58072 2009 2 28 54890 -0.1329 0.3296 -0.58238 2009 3 1 54891 -0.1331 0.3327 -0.58389 2009 3 2 54892 -0.1333 0.3358 -0.58518 2009 3 3 54893 -0.1334 0.3389 -0.58623 2009 3 4 54894 -0.1334 0.3420 -0.58712 2009 3 5 54895 -0.1334 0.3451 -0.58798 2009 3 6 54896 -0.1333 0.3482 -0.58889 2009 3 7 54897 -0.1332 0.3513 -0.58992 2009 3 8 54898 -0.1330 0.3544 -0.59116 2009 3 9 54899 -0.1328 0.3575 -0.59261 2009 3 10 54900 -0.1325 0.3606 -0.59426 2009 3 11 54901 -0.1322 0.3636 -0.59599 2009 3 12 54902 -0.1318 0.3667 -0.59770 2009 3 13 54903 -0.1314 0.3698 -0.59925 2009 3 14 54904 -0.1309 0.3729 -0.60054 2009 3 15 54905 -0.1304 0.3759 -0.60159 2009 3 16 54906 -0.1298 0.3790 -0.60243 2009 3 17 54907 -0.1291 0.3820 -0.60316 2009 3 18 54908 -0.1285 0.3851 -0.60382 2009 3 19 54909 -0.1277 0.3881 -0.60446 2009 3 20 54910 -0.1269 0.3911 -0.60516 2009 3 21 54911 -0.1261 0.3941 -0.60603 2009 3 22 54912 -0.1252 0.3971 -0.60712 2009 3 23 54913 -0.1243 0.4001 -0.60842 2009 3 24 54914 -0.1233 0.4030 -0.60993 2009 3 25 54915 -0.1222 0.4060 -0.61157 2009 3 26 54916 -0.1212 0.4089 -0.61329 2009 3 27 54917 -0.1200 0.4118 -0.61506 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) 54533 -58.09 .17 -5.02 .16 54534 -58.17 .17 -4.77 .16 54535 -58.63 .17 -4.75 .16 54536 -59.20 .74 -4.98 .34 54537 -59.51 .10 -5.34 .34 54538 -59.41 .10 -5.70 .34 54539 -59.03 .10 -5.96 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54533 0.189 0.068 0.020 0.160 54534 0.180 0.068 -0.027 0.160 54535 0.188 0.068 -0.069 0.160 54536 0.205 0.294 -0.065 0.340 54537 0.222 0.040 -0.036 0.340 54538 0.237 0.040 -0.032 0.340 54539 0.252 0.040 -0.034 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.