********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 10 May 2007 Vol. XX No. 019 ______________________________________________________________________ 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 = -0.1 seconds beginning 15 March 2007 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * As of Bulletin A Vol. XX, No. 023, on 07 June 2007, we will * * adopt the new 05C04 EOP system. This will result in a jump of * * less than 0.5 mas in polar motion and 10 us in UT1-UTC. The * * only users who need to be concerned with this change are those * * who need EOP accuracy to better than 1.0 mas (~3 cm at the * * Earth's surface, ~13 cm at GPS orbit). * ********************************************************************** ________________________________________________________________________ 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 7 5 4 54224 .08511 .00009 .48967 .00009 -.111331 .000011 7 5 5 54225 .08747 .00009 .48893 .00009 -.112163 .000012 7 5 6 54226 .08967 .00009 .48799 .00009 -.112875 .000013 7 5 7 54227 .09170 .00009 .48702 .00010 -.113524 .000013 7 5 8 54228 .09367 .00009 .48623 .00010 -.114243 .000014 7 5 9 54229 .09551 .00009 .48555 .00010 -.115175 .000048 7 5 10 54230 .09737 .00010 .48462 .00010 -.116391 .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 = .0549 - .0652 cos A + .0659 sin A + .1146 cos C + .0730 sin C y = .3446 + .0615 cos A + .0580 sin A + .0730 cos C - .1146 sin C UT1-UTC = -.0834 - .00097 (MJD - 54235) - (UT2-UT1) where A = 2*pi*(MJD-54230)/365.25 and C = 2*pi*(MJD-54230)/435. TAI-UTC(MJD 54231) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54230)**0.80 S t = 0.00025 (MJD-54230)**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) 2007 5 11 54231 0.0994 0.4838 -0.11801 2007 5 12 54232 0.1015 0.4827 -0.11998 2007 5 13 54233 0.1037 0.4817 -0.12219 2007 5 14 54234 0.1059 0.4806 -0.12443 2007 5 15 54235 0.1081 0.4796 -0.12655 2007 5 16 54236 0.1103 0.4786 -0.12835 2007 5 17 54237 0.1125 0.4775 -0.12977 2007 5 18 54238 0.1146 0.4765 -0.13080 2007 5 19 54239 0.1168 0.4753 -0.13153 2007 5 20 54240 0.1189 0.4742 -0.13216 2007 5 21 54241 0.1211 0.4730 -0.13285 2007 5 22 54242 0.1232 0.4718 -0.13365 2007 5 23 54243 0.1253 0.4706 -0.13458 2007 5 24 54244 0.1274 0.4693 -0.13561 2007 5 25 54245 0.1295 0.4680 -0.13668 2007 5 26 54246 0.1316 0.4667 -0.13775 2007 5 27 54247 0.1336 0.4654 -0.13876 2007 5 28 54248 0.1357 0.4640 -0.13966 2007 5 29 54249 0.1377 0.4626 -0.14042 2007 5 30 54250 0.1397 0.4612 -0.14099 2007 5 31 54251 0.1417 0.4597 -0.14138 2007 6 1 54252 0.1436 0.4582 -0.14161 2007 6 2 54253 0.1456 0.4567 -0.14175 2007 6 3 54254 0.1475 0.4551 -0.14187 2007 6 4 54255 0.1494 0.4536 -0.14205 2007 6 5 54256 0.1512 0.4520 -0.14236 2007 6 6 54257 0.1531 0.4503 -0.14286 2007 6 7 54258 0.1549 0.4487 -0.14357 2007 6 8 54259 0.1567 0.4470 -0.14450 2007 6 9 54260 0.1584 0.4453 -0.14557 2007 6 10 54261 0.1602 0.4436 -0.14668 2007 6 11 54262 0.1619 0.4418 -0.14767 2007 6 12 54263 0.1636 0.4400 -0.14843 2007 6 13 54264 0.1652 0.4382 -0.14887 2007 6 14 54265 0.1669 0.4364 -0.14900 2007 6 15 54266 0.1684 0.4345 -0.14888 2007 6 16 54267 0.1700 0.4326 -0.14867 2007 6 17 54268 0.1715 0.4307 -0.14849 2007 6 18 54269 0.1730 0.4288 -0.14845 2007 6 19 54270 0.1745 0.4268 -0.14858 2007 6 20 54271 0.1760 0.4249 -0.14885 2007 6 21 54272 0.1774 0.4229 -0.14922 2007 6 22 54273 0.1787 0.4209 -0.14961 2007 6 23 54274 0.1801 0.4188 -0.14996 2007 6 24 54275 0.1814 0.4168 -0.15021 2007 6 25 54276 0.1826 0.4147 -0.15031 2007 6 26 54277 0.1839 0.4126 -0.15023 2007 6 27 54278 0.1851 0.4105 -0.14995 2007 6 28 54279 0.1863 0.4084 -0.14949 2007 6 29 54280 0.1874 0.4062 -0.14891 2007 6 30 54281 0.1885 0.4041 -0.14829 2007 7 1 54282 0.1895 0.4019 -0.14772 2007 7 2 54283 0.1906 0.3997 -0.14731 2007 7 3 54284 0.1916 0.3975 -0.14713 2007 7 4 54285 0.1925 0.3952 -0.14723 2007 7 5 54286 0.1934 0.3930 -0.14759 2007 7 6 54287 0.1943 0.3908 -0.14815 2007 7 7 54288 0.1951 0.3885 -0.14880 2007 7 8 54289 0.1959 0.3862 -0.14940 2007 7 9 54290 0.1967 0.3839 -0.14983 2007 7 10 54291 0.1974 0.3816 -0.15000 2007 7 11 54292 0.1981 0.3793 -0.14991 2007 7 12 54293 0.1987 0.3770 -0.14960 2007 7 13 54294 0.1993 0.3747 -0.14920 2007 7 14 54295 0.1999 0.3724 -0.14883 2007 7 15 54296 0.2004 0.3700 -0.14860 2007 7 16 54297 0.2009 0.3677 -0.14857 2007 7 17 54298 0.2014 0.3653 -0.14873 2007 7 18 54299 0.2018 0.3630 -0.14905 2007 7 19 54300 0.2021 0.3606 -0.14945 2007 7 20 54301 0.2025 0.3582 -0.14985 2007 7 21 54302 0.2027 0.3558 -0.15018 2007 7 22 54303 0.2030 0.3535 -0.15040 2007 7 23 54304 0.2032 0.3511 -0.15046 2007 7 24 54305 0.2033 0.3487 -0.15035 2007 7 25 54306 0.2035 0.3463 -0.15007 2007 7 26 54307 0.2035 0.3439 -0.14966 2007 7 27 54308 0.2036 0.3415 -0.14919 2007 7 28 54309 0.2036 0.3391 -0.14874 2007 7 29 54310 0.2035 0.3368 -0.14841 2007 7 30 54311 0.2034 0.3344 -0.14830 2007 7 31 54312 0.2033 0.3320 -0.14847 2007 8 1 54313 0.2031 0.3296 -0.14894 2007 8 2 54314 0.2029 0.3272 -0.14963 2007 8 3 54315 0.2027 0.3249 -0.15044 2007 8 4 54316 0.2024 0.3225 -0.15120 2007 8 5 54317 0.2021 0.3201 -0.15179 2007 8 6 54318 0.2017 0.3178 -0.15211 2007 8 7 54319 0.2013 0.3154 -0.15216 2007 8 8 54320 0.2008 0.3131 -0.15198 2007 8 9 54321 0.2003 0.3107 -0.15167 2007 8 10 54322 0.1998 0.3084 -0.15137 2007 8 11 54323 0.1992 0.3061 -0.15117 2007 8 12 54324 0.1986 0.3038 -0.15117 2007 8 13 54325 0.1979 0.3015 -0.15137 2007 8 14 54326 0.1972 0.2992 -0.15176 2007 8 15 54327 0.1965 0.2969 -0.15227 2007 8 16 54328 0.1957 0.2947 -0.15283 2007 8 17 54329 0.1949 0.2924 -0.15336 2007 8 18 54330 0.1940 0.2902 -0.15379 2007 8 19 54331 0.1931 0.2880 -0.15407 2007 8 20 54332 0.1922 0.2858 -0.15420 2007 8 21 54333 0.1912 0.2836 -0.15416 2007 8 22 54334 0.1902 0.2814 -0.15400 2007 8 23 54335 0.1891 0.2792 -0.15376 2007 8 24 54336 0.1880 0.2771 -0.15352 2007 8 25 54337 0.1869 0.2750 -0.15337 2007 8 26 54338 0.1857 0.2729 -0.15343 2007 8 27 54339 0.1845 0.2708 -0.15376 2007 8 28 54340 0.1833 0.2687 -0.15441 2007 8 29 54341 0.1820 0.2667 -0.15536 2007 8 30 54342 0.1807 0.2646 -0.15649 2007 8 31 54343 0.1793 0.2626 -0.15765 2007 9 1 54344 0.1780 0.2607 -0.15867 2007 9 2 54345 0.1765 0.2587 -0.15943 2007 9 3 54346 0.1751 0.2568 -0.15989 2007 9 4 54347 0.1736 0.2548 -0.16009 2007 9 5 54348 0.1720 0.2529 -0.16015 2007 9 6 54349 0.1705 0.2511 -0.16018 2007 9 7 54350 0.1689 0.2492 -0.16031 2007 9 8 54351 0.1673 0.2474 -0.16062 2007 9 9 54352 0.1656 0.2456 -0.16115 2007 9 10 54353 0.1639 0.2439 -0.16189 2007 9 11 54354 0.1622 0.2421 -0.16278 2007 9 12 54355 0.1604 0.2404 -0.16375 2007 9 13 54356 0.1586 0.2387 -0.16474 2007 9 14 54357 0.1568 0.2371 -0.16565 2007 9 15 54358 0.1550 0.2354 -0.16644 2007 9 16 54359 0.1531 0.2338 -0.16707 2007 9 17 54360 0.1512 0.2323 -0.16755 2007 9 18 54361 0.1492 0.2307 -0.16789 2007 9 19 54362 0.1473 0.2292 -0.16814 2007 9 20 54363 0.1453 0.2277 -0.16837 2007 9 21 54364 0.1432 0.2263 -0.16865 2007 9 22 54365 0.1412 0.2249 -0.16910 2007 9 23 54366 0.1391 0.2235 -0.16978 2007 9 24 54367 0.1370 0.2221 -0.17079 2007 9 25 54368 0.1349 0.2208 -0.17211 2007 9 26 54369 0.1327 0.2195 -0.17369 2007 9 27 54370 0.1306 0.2183 -0.17539 2007 9 28 54371 0.1284 0.2171 -0.17702 2007 9 29 54372 0.1261 0.2159 -0.17843 2007 9 30 54373 0.1239 0.2147 -0.17953 2007 10 1 54374 0.1216 0.2136 -0.18032 2007 10 2 54375 0.1193 0.2125 -0.18090 2007 10 3 54376 0.1170 0.2115 -0.18141 2007 10 4 54377 0.1147 0.2105 -0.18197 2007 10 5 54378 0.1124 0.2095 -0.18269 2007 10 6 54379 0.1100 0.2086 -0.18361 2007 10 7 54380 0.1076 0.2077 -0.18473 2007 10 8 54381 0.1052 0.2068 -0.18600 2007 10 9 54382 0.1028 0.2060 -0.18737 2007 10 10 54383 0.1003 0.2052 -0.18875 2007 10 11 54384 0.0979 0.2045 -0.19008 2007 10 12 54385 0.0954 0.2038 -0.19130 2007 10 13 54386 0.0930 0.2031 -0.19236 2007 10 14 54387 0.0905 0.2025 -0.19325 2007 10 15 54388 0.0880 0.2019 -0.19399 2007 10 16 54389 0.0854 0.2013 -0.19461 2007 10 17 54390 0.0829 0.2008 -0.19519 2007 10 18 54391 0.0804 0.2003 -0.19578 2007 10 19 54392 0.0778 0.1999 -0.19648 2007 10 20 54393 0.0752 0.1995 -0.19738 2007 10 21 54394 0.0727 0.1992 -0.19854 2007 10 22 54395 0.0701 0.1988 -0.20000 2007 10 23 54396 0.0675 0.1986 -0.20174 2007 10 24 54397 0.0649 0.1983 -0.20367 2007 10 25 54398 0.0623 0.1981 -0.20564 2007 10 26 54399 0.0597 0.1980 -0.20746 2007 10 27 54400 0.0571 0.1979 -0.20900 2007 10 28 54401 0.0545 0.1978 -0.21022 2007 10 29 54402 0.0519 0.1977 -0.21117 2007 10 30 54403 0.0492 0.1977 -0.21198 2007 10 31 54404 0.0466 0.1978 -0.21280 2007 11 1 54405 0.0440 0.1979 -0.21374 2007 11 2 54406 0.0414 0.1980 -0.21488 2007 11 3 54407 0.0387 0.1982 -0.21620 2007 11 4 54408 0.0361 0.1984 -0.21768 2007 11 5 54409 0.0335 0.1986 -0.21926 2007 11 6 54410 0.0309 0.1989 -0.22086 2007 11 7 54411 0.0283 0.1992 -0.22242 2007 11 8 54412 0.0256 0.1996 -0.22387 2007 11 9 54413 0.0230 0.2000 -0.22518 2007 11 10 54414 0.0204 0.2005 -0.22631 2007 11 11 54415 0.0178 0.2010 -0.22726 2007 11 12 54416 0.0152 0.2015 -0.22806 2007 11 13 54417 0.0127 0.2021 -0.22875 2007 11 14 54418 0.0101 0.2027 -0.22939 2007 11 15 54419 0.0075 0.2033 -0.23005 2007 11 16 54420 0.0049 0.2040 -0.23082 2007 11 17 54421 0.0024 0.2047 -0.23176 2007 11 18 54422 -0.0001 0.2055 -0.23291 2007 11 19 54423 -0.0027 0.2063 -0.23430 2007 11 20 54424 -0.0052 0.2072 -0.23586 2007 11 21 54425 -0.0077 0.2081 -0.23750 2007 11 22 54426 -0.0102 0.2090 -0.23906 2007 11 23 54427 -0.0127 0.2099 -0.24040 2007 11 24 54428 -0.0151 0.2109 -0.24145 2007 11 25 54429 -0.0176 0.2120 -0.24221 2007 11 26 54430 -0.0200 0.2131 -0.24279 2007 11 27 54431 -0.0224 0.2142 -0.24333 2007 11 28 54432 -0.0248 0.2153 -0.24397 2007 11 29 54433 -0.0272 0.2165 -0.24480 2007 11 30 54434 -0.0296 0.2177 -0.24582 2007 12 1 54435 -0.0319 0.2190 -0.24702 2007 12 2 54436 -0.0342 0.2203 -0.24833 2007 12 3 54437 -0.0365 0.2216 -0.24967 2007 12 4 54438 -0.0388 0.2230 -0.25098 2007 12 5 54439 -0.0410 0.2244 -0.25220 2007 12 6 54440 -0.0433 0.2258 -0.25326 2007 12 7 54441 -0.0455 0.2273 -0.25412 2007 12 8 54442 -0.0477 0.2288 -0.25477 2007 12 9 54443 -0.0498 0.2303 -0.25525 2007 12 10 54444 -0.0520 0.2319 -0.25561 2007 12 11 54445 -0.0541 0.2335 -0.25595 2007 12 12 54446 -0.0562 0.2351 -0.25634 2007 12 13 54447 -0.0582 0.2368 -0.25689 2007 12 14 54448 -0.0603 0.2385 -0.25768 2007 12 15 54449 -0.0623 0.2402 -0.25877 2007 12 16 54450 -0.0643 0.2420 -0.26022 2007 12 17 54451 -0.0662 0.2438 -0.26192 2007 12 18 54452 -0.0681 0.2456 -0.26371 2007 12 19 54453 -0.0700 0.2474 -0.26549 2007 12 20 54454 -0.0719 0.2493 -0.26712 2007 12 21 54455 -0.0737 0.2512 -0.26851 2007 12 22 54456 -0.0755 0.2531 -0.26957 2007 12 23 54457 -0.0773 0.2551 -0.27034 2007 12 24 54458 -0.0790 0.2571 -0.27092 2007 12 25 54459 -0.0807 0.2591 -0.27154 2007 12 26 54460 -0.0824 0.2611 -0.27231 2007 12 27 54461 -0.0840 0.2632 -0.27330 2007 12 28 54462 -0.0856 0.2653 -0.27453 2007 12 29 54463 -0.0871 0.2674 -0.27584 2007 12 30 54464 -0.0887 0.2695 -0.27711 2007 12 31 54465 -0.0902 0.2717 -0.27833 2008 1 1 54466 -0.0916 0.2739 -0.27942 2008 1 2 54467 -0.0930 0.2761 -0.28031 2008 1 3 54468 -0.0944 0.2783 -0.28100 2008 1 4 54469 -0.0958 0.2806 -0.28149 2008 1 5 54470 -0.0971 0.2828 -0.28186 2008 1 6 54471 -0.0983 0.2851 -0.28210 2008 1 7 54472 -0.0996 0.2874 -0.28227 2008 1 8 54473 -0.1007 0.2898 -0.28251 2008 1 9 54474 -0.1019 0.2921 -0.28286 2008 1 10 54475 -0.1030 0.2945 -0.28340 2008 1 11 54476 -0.1041 0.2968 -0.28421 2008 1 12 54477 -0.1051 0.2992 -0.28531 2008 1 13 54478 -0.1061 0.3016 -0.28665 2008 1 14 54479 -0.1070 0.3040 -0.28816 2008 1 15 54480 -0.1079 0.3065 -0.28958 2008 1 16 54481 -0.1088 0.3089 -0.29084 2008 1 17 54482 -0.1096 0.3114 -0.29189 2008 1 18 54483 -0.1104 0.3139 -0.29268 2008 1 19 54484 -0.1111 0.3164 -0.29323 2008 1 20 54485 -0.1118 0.3189 -0.29364 2008 1 21 54486 -0.1125 0.3214 -0.29404 2008 1 22 54487 -0.1131 0.3239 -0.29458 2008 1 23 54488 -0.1137 0.3264 -0.29533 2008 1 24 54489 -0.1142 0.3289 -0.29627 2008 1 25 54490 -0.1147 0.3315 -0.29738 2008 1 26 54491 -0.1151 0.3340 -0.29861 2008 1 27 54492 -0.1155 0.3366 -0.29981 2008 1 28 54493 -0.1159 0.3391 -0.30098 2008 1 29 54494 -0.1162 0.3417 -0.30205 2008 1 30 54495 -0.1164 0.3443 -0.30292 2008 1 31 54496 -0.1167 0.3469 -0.30360 2008 2 1 54497 -0.1168 0.3494 -0.30410 2008 2 2 54498 -0.1170 0.3520 -0.30451 2008 2 3 54499 -0.1170 0.3546 -0.30489 2008 2 4 54500 -0.1171 0.3572 -0.30531 2008 2 5 54501 -0.1171 0.3597 -0.30582 2008 2 6 54502 -0.1170 0.3623 -0.30654 2008 2 7 54503 -0.1169 0.3649 -0.30750 2008 2 8 54504 -0.1168 0.3675 -0.30869 2008 2 9 54505 -0.1166 0.3700 -0.31015 2008 2 10 54506 -0.1164 0.3726 -0.31180 2008 2 11 54507 -0.1161 0.3752 -0.31349 2008 2 12 54508 -0.1158 0.3777 -0.31504 2008 2 13 54509 -0.1154 0.3803 -0.31634 2008 2 14 54510 -0.1150 0.3829 -0.31738 2008 2 15 54511 -0.1146 0.3854 -0.31821 2008 2 16 54512 -0.1141 0.3879 -0.31887 2008 2 17 54513 -0.1136 0.3905 -0.31950 2008 2 18 54514 -0.1130 0.3930 -0.32022 2008 2 19 54515 -0.1124 0.3955 -0.32113 2008 2 20 54516 -0.1117 0.3980 -0.32231 2008 2 21 54517 -0.1110 0.4005 -0.32374 2008 2 22 54518 -0.1102 0.4029 -0.32536 2008 2 23 54519 -0.1094 0.4054 -0.32705 2008 2 24 54520 -0.1086 0.4079 -0.32868 2008 2 25 54521 -0.1077 0.4103 -0.33016 2008 2 26 54522 -0.1068 0.4127 -0.33149 2008 2 27 54523 -0.1058 0.4151 -0.33260 2008 2 28 54524 -0.1048 0.4175 -0.33349 2008 2 29 54525 -0.1037 0.4199 -0.33421 2008 3 1 54526 -0.1026 0.4223 -0.33484 2008 3 2 54527 -0.1015 0.4246 -0.33548 2008 3 3 54528 -0.1003 0.4269 -0.33626 2008 3 4 54529 -0.0991 0.4292 -0.33721 2008 3 5 54530 -0.0978 0.4315 -0.33844 2008 3 6 54531 -0.0965 0.4338 -0.33994 2008 3 7 54532 -0.0952 0.4360 -0.34178 2008 3 8 54533 -0.0938 0.4383 -0.34390 2008 3 9 54534 -0.0924 0.4405 -0.34615 2008 3 10 54535 -0.0909 0.4426 -0.34835 2008 3 11 54536 -0.0894 0.4448 -0.35032 2008 3 12 54537 -0.0879 0.4469 -0.35198 2008 3 13 54538 -0.0863 0.4491 -0.35335 2008 3 14 54539 -0.0847 0.4511 -0.35452 2008 3 15 54540 -0.0831 0.4532 -0.35555 2008 3 16 54541 -0.0814 0.4552 -0.35658 2008 3 17 54542 -0.0797 0.4572 -0.35774 2008 3 18 54543 -0.0779 0.4592 -0.35921 2008 3 19 54544 -0.0761 0.4612 -0.36097 2008 3 20 54545 -0.0743 0.4631 -0.36297 2008 3 21 54546 -0.0724 0.4650 -0.36508 2008 3 22 54547 -0.0705 0.4669 -0.36730 2008 3 23 54548 -0.0686 0.4687 -0.36943 2008 3 24 54549 -0.0666 0.4705 -0.37144 2008 3 25 54550 -0.0647 0.4723 -0.37326 2008 3 26 54551 -0.0626 0.4740 -0.37482 2008 3 27 54552 -0.0606 0.4758 -0.37621 2008 3 28 54553 -0.0585 0.4774 -0.37747 2008 3 29 54554 -0.0564 0.4791 -0.37863 2008 3 30 54555 -0.0542 0.4807 -0.37978 2008 3 31 54556 -0.0520 0.4823 -0.38098 2008 4 1 54557 -0.0498 0.4838 -0.38232 2008 4 2 54558 -0.0476 0.4854 -0.38388 2008 4 3 54559 -0.0454 0.4868 -0.38563 2008 4 4 54560 -0.0431 0.4883 -0.38758 2008 4 5 54561 -0.0408 0.4897 -0.38969 2008 4 6 54562 -0.0384 0.4911 -0.39173 2008 4 7 54563 -0.0361 0.4924 -0.39354 2008 4 8 54564 -0.0337 0.4937 -0.39498 2008 4 9 54565 -0.0313 0.4950 -0.39608 2008 4 10 54566 -0.0288 0.4962 -0.39689 2008 4 11 54567 -0.0264 0.4974 -0.39753 2008 4 12 54568 -0.0239 0.4985 -0.39812 2008 4 13 54569 -0.0214 0.4996 -0.39877 2008 4 14 54570 -0.0189 0.5007 -0.39960 2008 4 15 54571 -0.0163 0.5018 -0.40063 2008 4 16 54572 -0.0138 0.5027 -0.40178 2008 4 17 54573 -0.0112 0.5037 -0.40298 2008 4 18 54574 -0.0086 0.5046 -0.40423 2008 4 19 54575 -0.0060 0.5055 -0.40544 2008 4 20 54576 -0.0033 0.5063 -0.40656 2008 4 21 54577 -0.0007 0.5071 -0.40754 2008 4 22 54578 0.0020 0.5079 -0.40836 2008 4 23 54579 0.0046 0.5086 -0.40899 2008 4 24 54580 0.0073 0.5093 -0.40955 2008 4 25 54581 0.0100 0.5099 -0.41006 2008 4 26 54582 0.0127 0.5105 -0.41059 2008 4 27 54583 0.0155 0.5110 -0.41117 2008 4 28 54584 0.0182 0.5115 -0.41188 2008 4 29 54585 0.0209 0.5120 -0.41282 2008 4 30 54586 0.0237 0.5124 -0.41397 2008 5 1 54587 0.0265 0.5128 -0.41537 2008 5 2 54588 0.0292 0.5131 -0.41702 2008 5 3 54589 0.0320 0.5134 -0.41880 2008 5 4 54590 0.0348 0.5136 -0.42054 2008 5 5 54591 0.0376 0.5138 -0.42200 2008 5 6 54592 0.0404 0.5140 -0.42312 2008 5 7 54593 0.0432 0.5141 -0.42390 2008 5 8 54594 0.0460 0.5142 -0.42449 2008 5 9 54595 0.0488 0.5142 -0.42506 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) 54211 -56.03 .15 -7.11 .12 54212 -55.36 .15 -7.55 .12 54213 -54.67 .15 -7.84 .12 54214 -54.31 .74 -7.76 .34 54215 -54.39 .30 -7.36 .34 54216 -54.64 .30 -6.93 .34 54217 -54.74 .30 -6.67 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54211 0.197 0.060 -0.222 0.120 54212 0.211 0.060 -0.225 0.120 54213 0.230 0.060 -0.259 0.120 54214 0.262 0.294 -0.285 0.340 54215 0.288 0.119 -0.269 0.340 54216 0.293 0.119 -0.233 0.340 54217 0.282 0.119 -0.212 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.