********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 March 2007 Vol. XX 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 = -0.1 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. 013, on 29 March 2007, we have * * incorporated the new GSFC VLBI solutions gsf2007b and gsfint20. * * The effect appears to be less than 0.10 mas in polar motion and * * 10 us in UT1-UTC. * ********************************************************************** ________________________________________________________________________ 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 3 23 54182 .00750 .00009 .47204 .00010 -.056428 .000008 7 3 24 54183 .00834 .00009 .47265 .00010 -.057355 .000007 7 3 25 54184 .00956 .00010 .47317 .00010 -.058105 .000008 7 3 26 54185 .01069 .00009 .47374 .00010 -.058810 .000032 7 3 27 54186 .01180 .00009 .47451 .00010 -.059550 .000037 7 3 28 54187 .01351 .00010 .47526 .00009 -.060415 .000048 7 3 29 54188 .01580 .00010 .47595 .00009 -.061500 .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 = .0525 - .0873 cos A + .0193 sin A + .0529 cos C + .1119 sin C y = .3444 + .0183 cos A + .0776 sin A + .1119 cos C - .0529 sin C UT1-UTC = -.0420 - .00096 (MJD - 54193) - (UT2-UT1) where A = 2*pi*(MJD-54188)/365.25 and C = 2*pi*(MJD-54188)/435. TAI-UTC(MJD 54189) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54188)**0.80 S t = 0.00025 (MJD-54188)**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 3 30 54189 0.0180 0.4767 -0.06284 2007 3 31 54190 0.0203 0.4774 -0.06434 2007 4 1 54191 0.0226 0.4781 -0.06591 2007 4 2 54192 0.0248 0.4788 -0.06753 2007 4 3 54193 0.0269 0.4793 -0.06915 2007 4 4 54194 0.0289 0.4798 -0.07063 2007 4 5 54195 0.0311 0.4802 -0.07192 2007 4 6 54196 0.0333 0.4806 -0.07300 2007 4 7 54197 0.0355 0.4809 -0.07387 2007 4 8 54198 0.0378 0.4812 -0.07459 2007 4 9 54199 0.0401 0.4814 -0.07524 2007 4 10 54200 0.0425 0.4817 -0.07593 2007 4 11 54201 0.0448 0.4818 -0.07673 2007 4 12 54202 0.0471 0.4820 -0.07773 2007 4 13 54203 0.0495 0.4821 -0.07899 2007 4 14 54204 0.0518 0.4821 -0.08055 2007 4 15 54205 0.0542 0.4822 -0.08238 2007 4 16 54206 0.0565 0.4822 -0.08434 2007 4 17 54207 0.0589 0.4821 -0.08624 2007 4 18 54208 0.0613 0.4820 -0.08788 2007 4 19 54209 0.0637 0.4819 -0.08916 2007 4 20 54210 0.0660 0.4817 -0.09008 2007 4 21 54211 0.0684 0.4815 -0.09073 2007 4 22 54212 0.0708 0.4813 -0.09127 2007 4 23 54213 0.0732 0.4810 -0.09182 2007 4 24 54214 0.0756 0.4807 -0.09247 2007 4 25 54215 0.0780 0.4803 -0.09327 2007 4 26 54216 0.0804 0.4800 -0.09423 2007 4 27 54217 0.0827 0.4795 -0.09534 2007 4 28 54218 0.0851 0.4791 -0.09656 2007 4 29 54219 0.0875 0.4786 -0.09784 2007 4 30 54220 0.0898 0.4780 -0.09911 2007 5 1 54221 0.0922 0.4775 -0.10031 2007 5 2 54222 0.0946 0.4769 -0.10139 2007 5 3 54223 0.0969 0.4762 -0.10231 2007 5 4 54224 0.0992 0.4756 -0.10309 2007 5 5 54225 0.1016 0.4749 -0.10374 2007 5 6 54226 0.1039 0.4741 -0.10432 2007 5 7 54227 0.1062 0.4733 -0.10492 2007 5 8 54228 0.1085 0.4725 -0.10560 2007 5 9 54229 0.1108 0.4717 -0.10647 2007 5 10 54230 0.1131 0.4708 -0.10758 2007 5 11 54231 0.1154 0.4699 -0.10899 2007 5 12 54232 0.1176 0.4689 -0.11067 2007 5 13 54233 0.1199 0.4679 -0.11253 2007 5 14 54234 0.1221 0.4669 -0.11441 2007 5 15 54235 0.1243 0.4659 -0.11613 2007 5 16 54236 0.1265 0.4648 -0.11756 2007 5 17 54237 0.1287 0.4636 -0.11863 2007 5 18 54238 0.1308 0.4625 -0.11940 2007 5 19 54239 0.1330 0.4613 -0.11999 2007 5 20 54240 0.1351 0.4601 -0.12054 2007 5 21 54241 0.1372 0.4588 -0.12117 2007 5 22 54242 0.1393 0.4576 -0.12194 2007 5 23 54243 0.1414 0.4562 -0.12287 2007 5 24 54244 0.1434 0.4549 -0.12393 2007 5 25 54245 0.1455 0.4535 -0.12506 2007 5 26 54246 0.1475 0.4521 -0.12622 2007 5 27 54247 0.1495 0.4507 -0.12732 2007 5 28 54248 0.1514 0.4492 -0.12832 2007 5 29 54249 0.1534 0.4477 -0.12916 2007 5 30 54250 0.1553 0.4462 -0.12982 2007 5 31 54251 0.1572 0.4446 -0.13028 2007 6 1 54252 0.1591 0.4431 -0.13058 2007 6 2 54253 0.1609 0.4414 -0.13076 2007 6 3 54254 0.1628 0.4398 -0.13089 2007 6 4 54255 0.1645 0.4381 -0.13107 2007 6 5 54256 0.1663 0.4365 -0.13137 2007 6 6 54257 0.1681 0.4347 -0.13189 2007 6 7 54258 0.1698 0.4330 -0.13264 2007 6 8 54259 0.1715 0.4312 -0.13363 2007 6 9 54260 0.1731 0.4294 -0.13477 2007 6 10 54261 0.1747 0.4276 -0.13596 2007 6 11 54262 0.1763 0.4258 -0.13704 2007 6 12 54263 0.1779 0.4239 -0.13788 2007 6 13 54264 0.1794 0.4220 -0.13841 2007 6 14 54265 0.1810 0.4201 -0.13864 2007 6 15 54266 0.1824 0.4181 -0.13864 2007 6 16 54267 0.1839 0.4162 -0.13855 2007 6 17 54268 0.1853 0.4142 -0.13850 2007 6 18 54269 0.1867 0.4122 -0.13859 2007 6 19 54270 0.1880 0.4102 -0.13886 2007 6 20 54271 0.1893 0.4081 -0.13928 2007 6 21 54272 0.1906 0.4061 -0.13981 2007 6 22 54273 0.1918 0.4040 -0.14037 2007 6 23 54274 0.1930 0.4019 -0.14091 2007 6 24 54275 0.1942 0.3998 -0.14136 2007 6 25 54276 0.1954 0.3976 -0.14167 2007 6 26 54277 0.1965 0.3955 -0.14179 2007 6 27 54278 0.1975 0.3933 -0.14173 2007 6 28 54279 0.1986 0.3911 -0.14150 2007 6 29 54280 0.1996 0.3889 -0.14114 2007 6 30 54281 0.2005 0.3867 -0.14074 2007 7 1 54282 0.2014 0.3845 -0.14038 2007 7 2 54283 0.2023 0.3823 -0.14016 2007 7 3 54284 0.2032 0.3800 -0.14016 2007 7 4 54285 0.2040 0.3777 -0.14041 2007 7 5 54286 0.2047 0.3754 -0.14091 2007 7 6 54287 0.2055 0.3732 -0.14159 2007 7 7 54288 0.2062 0.3709 -0.14233 2007 7 8 54289 0.2068 0.3685 -0.14300 2007 7 9 54290 0.2074 0.3662 -0.14348 2007 7 10 54291 0.2080 0.3639 -0.14369 2007 7 11 54292 0.2085 0.3616 -0.14361 2007 7 12 54293 0.2090 0.3592 -0.14331 2007 7 13 54294 0.2095 0.3569 -0.14287 2007 7 14 54295 0.2099 0.3545 -0.14244 2007 7 15 54296 0.2102 0.3521 -0.14215 2007 7 16 54297 0.2106 0.3498 -0.14205 2007 7 17 54298 0.2108 0.3474 -0.14215 2007 7 18 54299 0.2111 0.3450 -0.14239 2007 7 19 54300 0.2113 0.3426 -0.14272 2007 7 20 54301 0.2115 0.3402 -0.14306 2007 7 21 54302 0.2116 0.3378 -0.14333 2007 7 22 54303 0.2117 0.3355 -0.14348 2007 7 23 54304 0.2117 0.3331 -0.14347 2007 7 24 54305 0.2117 0.3307 -0.14330 2007 7 25 54306 0.2117 0.3283 -0.14295 2007 7 26 54307 0.2116 0.3259 -0.14248 2007 7 27 54308 0.2115 0.3235 -0.14195 2007 7 28 54309 0.2113 0.3211 -0.14144 2007 7 29 54310 0.2111 0.3187 -0.14106 2007 7 30 54311 0.2108 0.3164 -0.14089 2007 7 31 54312 0.2105 0.3140 -0.14101 2007 8 1 54313 0.2102 0.3116 -0.14142 2007 8 2 54314 0.2098 0.3092 -0.14206 2007 8 3 54315 0.2094 0.3069 -0.14281 2007 8 4 54316 0.2090 0.3045 -0.14352 2007 8 5 54317 0.2085 0.3022 -0.14406 2007 8 6 54318 0.2079 0.2999 -0.14434 2007 8 7 54319 0.2073 0.2975 -0.14434 2007 8 8 54320 0.2067 0.2952 -0.14412 2007 8 9 54321 0.2060 0.2929 -0.14378 2007 8 10 54322 0.2053 0.2906 -0.14345 2007 8 11 54323 0.2046 0.2883 -0.14324 2007 8 12 54324 0.2038 0.2860 -0.14322 2007 8 13 54325 0.2030 0.2838 -0.14342 2007 8 14 54326 0.2021 0.2815 -0.14381 2007 8 15 54327 0.2012 0.2793 -0.14433 2007 8 16 54328 0.2003 0.2770 -0.14491 2007 8 17 54329 0.1993 0.2748 -0.14546 2007 8 18 54330 0.1982 0.2726 -0.14591 2007 8 19 54331 0.1972 0.2705 -0.14623 2007 8 20 54332 0.1961 0.2683 -0.14639 2007 8 21 54333 0.1949 0.2661 -0.14639 2007 8 22 54334 0.1937 0.2640 -0.14627 2007 8 23 54335 0.1925 0.2619 -0.14608 2007 8 24 54336 0.1913 0.2598 -0.14589 2007 8 25 54337 0.1900 0.2577 -0.14581 2007 8 26 54338 0.1886 0.2557 -0.14592 2007 8 27 54339 0.1873 0.2537 -0.14632 2007 8 28 54340 0.1859 0.2516 -0.14705 2007 8 29 54341 0.1844 0.2497 -0.14807 2007 8 30 54342 0.1829 0.2477 -0.14927 2007 8 31 54343 0.1814 0.2457 -0.15051 2007 9 1 54344 0.1799 0.2438 -0.15160 2007 9 2 54345 0.1783 0.2419 -0.15243 2007 9 3 54346 0.1767 0.2401 -0.15297 2007 9 4 54347 0.1750 0.2382 -0.15325 2007 9 5 54348 0.1733 0.2364 -0.15338 2007 9 6 54349 0.1716 0.2346 -0.15349 2007 9 7 54350 0.1699 0.2328 -0.15369 2007 9 8 54351 0.1681 0.2311 -0.15407 2007 9 9 54352 0.1663 0.2294 -0.15467 2007 9 10 54353 0.1644 0.2277 -0.15547 2007 9 11 54354 0.1625 0.2260 -0.15642 2007 9 12 54355 0.1606 0.2244 -0.15746 2007 9 13 54356 0.1587 0.2228 -0.15850 2007 9 14 54357 0.1567 0.2212 -0.15946 2007 9 15 54358 0.1547 0.2196 -0.16030 2007 9 16 54359 0.1527 0.2181 -0.16097 2007 9 17 54360 0.1506 0.2167 -0.16149 2007 9 18 54361 0.1485 0.2152 -0.16186 2007 9 19 54362 0.1464 0.2138 -0.16213 2007 9 20 54363 0.1443 0.2124 -0.16238 2007 9 21 54364 0.1421 0.2110 -0.16268 2007 9 22 54365 0.1399 0.2097 -0.16313 2007 9 23 54366 0.1377 0.2084 -0.16382 2007 9 24 54367 0.1354 0.2072 -0.16480 2007 9 25 54368 0.1332 0.2060 -0.16610 2007 9 26 54369 0.1309 0.2048 -0.16763 2007 9 27 54370 0.1286 0.2036 -0.16926 2007 9 28 54371 0.1262 0.2025 -0.17080 2007 9 29 54372 0.1239 0.2014 -0.17209 2007 9 30 54373 0.1215 0.2004 -0.17306 2007 10 1 54374 0.1191 0.1994 -0.17370 2007 10 2 54375 0.1167 0.1984 -0.17413 2007 10 3 54376 0.1142 0.1975 -0.17449 2007 10 4 54377 0.1118 0.1966 -0.17494 2007 10 5 54378 0.1093 0.1957 -0.17557 2007 10 6 54379 0.1068 0.1949 -0.17645 2007 10 7 54380 0.1043 0.1941 -0.17756 2007 10 8 54381 0.1018 0.1934 -0.17887 2007 10 9 54382 0.0993 0.1927 -0.18031 2007 10 10 54383 0.0967 0.1920 -0.18179 2007 10 11 54384 0.0941 0.1914 -0.18323 2007 10 12 54385 0.0916 0.1908 -0.18455 2007 10 13 54386 0.0890 0.1902 -0.18570 2007 10 14 54387 0.0864 0.1897 -0.18666 2007 10 15 54388 0.0837 0.1892 -0.18744 2007 10 16 54389 0.0811 0.1888 -0.18807 2007 10 17 54390 0.0785 0.1884 -0.18863 2007 10 18 54391 0.0758 0.1881 -0.18919 2007 10 19 54392 0.0732 0.1878 -0.18986 2007 10 20 54393 0.0705 0.1875 -0.19071 2007 10 21 54394 0.0678 0.1873 -0.19185 2007 10 22 54395 0.0651 0.1871 -0.19330 2007 10 23 54396 0.0625 0.1869 -0.19504 2007 10 24 54397 0.0598 0.1868 -0.19698 2007 10 25 54398 0.0571 0.1867 -0.19894 2007 10 26 54399 0.0544 0.1867 -0.20074 2007 10 27 54400 0.0517 0.1867 -0.20225 2007 10 28 54401 0.0490 0.1868 -0.20341 2007 10 29 54402 0.0463 0.1869 -0.20430 2007 10 30 54403 0.0436 0.1870 -0.20503 2007 10 31 54404 0.0409 0.1872 -0.20575 2007 11 1 54405 0.0382 0.1874 -0.20658 2007 11 2 54406 0.0355 0.1877 -0.20758 2007 11 3 54407 0.0328 0.1880 -0.20877 2007 11 4 54408 0.0301 0.1883 -0.21010 2007 11 5 54409 0.0274 0.1887 -0.21155 2007 11 6 54410 0.0247 0.1891 -0.21305 2007 11 7 54411 0.0220 0.1896 -0.21449 2007 11 8 54412 0.0193 0.1901 -0.21580 2007 11 9 54413 0.0166 0.1906 -0.21694 2007 11 10 54414 0.0140 0.1912 -0.21792 2007 11 11 54415 0.0113 0.1919 -0.21876 2007 11 12 54416 0.0087 0.1925 -0.21948 2007 11 13 54417 0.0060 0.1932 -0.22010 2007 11 14 54418 0.0034 0.1940 -0.22074 2007 11 15 54419 0.0008 0.1948 -0.22143 2007 11 16 54420 -0.0018 0.1956 -0.22224 2007 11 17 54421 -0.0044 0.1965 -0.22329 2007 11 18 54422 -0.0070 0.1974 -0.22464 2007 11 19 54423 -0.0096 0.1983 -0.22627 2007 11 20 54424 -0.0121 0.1993 -0.22806 2007 11 21 54425 -0.0147 0.2003 -0.22991 2007 11 22 54426 -0.0172 0.2014 -0.23169 2007 11 23 54427 -0.0197 0.2025 -0.23328 2007 11 24 54428 -0.0222 0.2037 -0.23454 2007 11 25 54429 -0.0247 0.2048 -0.23551 2007 11 26 54430 -0.0271 0.2060 -0.23626 2007 11 27 54431 -0.0296 0.2073 -0.23696 2007 11 28 54432 -0.0320 0.2086 -0.23776 2007 11 29 54433 -0.0344 0.2099 -0.23877 2007 11 30 54434 -0.0368 0.2113 -0.24001 2007 12 1 54435 -0.0391 0.2127 -0.24145 2007 12 2 54436 -0.0415 0.2141 -0.24294 2007 12 3 54437 -0.0438 0.2156 -0.24440 2007 12 4 54438 -0.0461 0.2171 -0.24584 2007 12 5 54439 -0.0483 0.2186 -0.24713 2007 12 6 54440 -0.0506 0.2202 -0.24821 2007 12 7 54441 -0.0528 0.2218 -0.24908 2007 12 8 54442 -0.0550 0.2235 -0.24976 2007 12 9 54443 -0.0571 0.2251 -0.25031 2007 12 10 54444 -0.0593 0.2268 -0.25081 2007 12 11 54445 -0.0614 0.2286 -0.25131 2007 12 12 54446 -0.0634 0.2304 -0.25189 2007 12 13 54447 -0.0655 0.2322 -0.25260 2007 12 14 54448 -0.0675 0.2340 -0.25356 2007 12 15 54449 -0.0695 0.2359 -0.25483 2007 12 16 54450 -0.0715 0.2378 -0.25639 2007 12 17 54451 -0.0734 0.2397 -0.25815 2007 12 18 54452 -0.0753 0.2416 -0.25999 2007 12 19 54453 -0.0771 0.2436 -0.26176 2007 12 20 54454 -0.0790 0.2456 -0.26337 2007 12 21 54455 -0.0808 0.2477 -0.26471 2007 12 22 54456 -0.0825 0.2497 -0.26571 2007 12 23 54457 -0.0843 0.2518 -0.26643 2007 12 24 54458 -0.0859 0.2540 -0.26702 2007 12 25 54459 -0.0876 0.2561 -0.26774 2007 12 26 54460 -0.0892 0.2583 -0.26869 2007 12 27 54461 -0.0908 0.2605 -0.26993 2007 12 28 54462 -0.0924 0.2627 -0.27139 2007 12 29 54463 -0.0939 0.2649 -0.27310 2007 12 30 54464 -0.0953 0.2672 -0.27486 2007 12 31 54465 -0.0968 0.2695 -0.27661 2008 1 1 54466 -0.0982 0.2718 -0.27824 2008 1 2 54467 -0.0995 0.2741 -0.27966 2008 1 3 54468 -0.1009 0.2765 -0.28087 2008 1 4 54469 -0.1021 0.2789 -0.28190 2008 1 5 54470 -0.1034 0.2813 -0.28270 2008 1 6 54471 -0.1046 0.2837 -0.28335 2008 1 7 54472 -0.1057 0.2861 -0.28389 2008 1 8 54473 -0.1069 0.2885 -0.28443 2008 1 9 54474 -0.1079 0.2910 -0.28505 2008 1 10 54475 -0.1090 0.2935 -0.28580 2008 1 11 54476 -0.1100 0.2960 -0.28674 2008 1 12 54477 -0.1109 0.2985 -0.28794 2008 1 13 54478 -0.1118 0.3010 -0.28925 2008 1 14 54479 -0.1127 0.3035 -0.29060 2008 1 15 54480 -0.1135 0.3061 -0.29184 2008 1 16 54481 -0.1143 0.3087 -0.29293 2008 1 17 54482 -0.1150 0.3112 -0.29375 2008 1 18 54483 -0.1157 0.3138 -0.29429 2008 1 19 54484 -0.1163 0.3164 -0.29454 2008 1 20 54485 -0.1169 0.3190 -0.29460 2008 1 21 54486 -0.1175 0.3217 -0.29466 2008 1 22 54487 -0.1180 0.3243 -0.29486 2008 1 23 54488 -0.1185 0.3269 -0.29525 2008 1 24 54489 -0.1189 0.3295 -0.29585 2008 1 25 54490 -0.1193 0.3322 -0.29666 2008 1 26 54491 -0.1196 0.3348 -0.29762 2008 1 27 54492 -0.1199 0.3375 -0.29864 2008 1 28 54493 -0.1201 0.3402 -0.29962 2008 1 29 54494 -0.1203 0.3428 -0.30049 2008 1 30 54495 -0.1205 0.3455 -0.30119 2008 1 31 54496 -0.1206 0.3482 -0.30176 2008 2 1 54497 -0.1206 0.3508 -0.30220 2008 2 2 54498 -0.1206 0.3535 -0.30254 2008 2 3 54499 -0.1206 0.3562 -0.30281 2008 2 4 54500 -0.1205 0.3589 -0.30307 2008 2 5 54501 -0.1204 0.3615 -0.30348 2008 2 6 54502 -0.1202 0.3642 -0.30406 2008 2 7 54503 -0.1200 0.3669 -0.30490 2008 2 8 54504 -0.1197 0.3695 -0.30608 2008 2 9 54505 -0.1194 0.3722 -0.30756 2008 2 10 54506 -0.1191 0.3748 -0.30923 2008 2 11 54507 -0.1186 0.3775 -0.31086 2008 2 12 54508 -0.1182 0.3801 -0.31234 2008 2 13 54509 -0.1177 0.3828 -0.31356 2008 2 14 54510 -0.1172 0.3854 -0.31452 2008 2 15 54511 -0.1166 0.3880 -0.31529 2008 2 16 54512 -0.1159 0.3906 -0.31597 2008 2 17 54513 -0.1152 0.3932 -0.31666 2008 2 18 54514 -0.1145 0.3958 -0.31748 2008 2 19 54515 -0.1138 0.3984 -0.31859 2008 2 20 54516 -0.1129 0.4010 -0.31998 2008 2 21 54517 -0.1121 0.4035 -0.32156 2008 2 22 54518 -0.1112 0.4061 -0.32330 2008 2 23 54519 -0.1102 0.4086 -0.32506 2008 2 24 54520 -0.1092 0.4111 -0.32670 2008 2 25 54521 -0.1082 0.4136 -0.32815 2008 2 26 54522 -0.1071 0.4161 -0.32938 2008 2 27 54523 -0.1060 0.4186 -0.33038 2008 2 28 54524 -0.1048 0.4210 -0.33119 2008 2 29 54525 -0.1036 0.4234 -0.33189 2008 3 1 54526 -0.1023 0.4259 -0.33250 2008 3 2 54527 -0.1010 0.4283 -0.33314 2008 3 3 54528 -0.0997 0.4306 -0.33385 2008 3 4 54529 -0.0983 0.4330 -0.33472 2008 3 5 54530 -0.0969 0.4353 -0.33574 2008 3 6 54531 -0.0954 0.4376 -0.33697 2008 3 7 54532 -0.0939 0.4399 -0.33849 2008 3 8 54533 -0.0924 0.4422 -0.34025 2008 3 9 54534 -0.0908 0.4444 -0.34202 2008 3 10 54535 -0.0892 0.4467 -0.34361 2008 3 11 54536 -0.0875 0.4488 -0.34493 2008 3 12 54537 -0.0858 0.4510 -0.34593 2008 3 13 54538 -0.0840 0.4532 -0.34665 2008 3 14 54539 -0.0823 0.4553 -0.34714 2008 3 15 54540 -0.0804 0.4574 -0.34754 2008 3 16 54541 -0.0786 0.4594 -0.34799 2008 3 17 54542 -0.0767 0.4615 -0.34861 2008 3 18 54543 -0.0748 0.4635 -0.34942 2008 3 19 54544 -0.0728 0.4655 -0.35039 2008 3 20 54545 -0.0708 0.4674 -0.35147 2008 3 21 54546 -0.0688 0.4693 -0.35260 2008 3 22 54547 -0.0667 0.4712 -0.35373 2008 3 23 54548 -0.0646 0.4731 -0.35479 2008 3 24 54549 -0.0625 0.4749 -0.35566 2008 3 25 54550 -0.0603 0.4767 -0.35636 2008 3 26 54551 -0.0581 0.4784 -0.35691 2008 3 27 54552 -0.0559 0.4802 -0.35738 2008 3 28 54553 -0.0536 0.4818 -0.35770 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) 54167 -56.36 .23 -4.53 .13 54168 -56.41 .23 -4.71 .13 54169 -56.39 .32 -4.99 .14 54170 -56.27 .74 -5.36 .34 54171 -56.05 .74 -5.62 .34 54172 -55.82 .74 -5.63 .34 54173 -55.81 .74 -5.54 .23 54174 -56.07 .74 -5.61 .23 54175 -56.26 .74 -5.85 .23 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54167 0.198 0.091 -0.239 0.130 54168 0.192 0.091 -0.254 0.130 54169 0.198 0.127 -0.280 0.140 54170 0.223 0.294 -0.293 0.340 54171 0.247 0.294 -0.276 0.340 54172 0.259 0.294 -0.255 0.340 54173 0.259 0.294 -0.274 0.230 54174 0.267 0.294 -0.301 0.230 54175 0.285 0.294 -0.286 0.230 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.