********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 March 2007 Vol. XX No. 011 ______________________________________________________________________ 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 ________________________________________________________________________ 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 9 54168 -.00902 .00005 .45475 .00005 -.039238 .000009 7 3 10 54169 -.00813 .00009 .45570 .00010 -.040123 .000009 7 3 11 54170 -.00726 .00009 .45654 .00010 -.040861 .000014 7 3 12 54171 -.00641 .00009 .45739 .00010 -.041475 .000014 7 3 13 54172 -.00574 .00009 .45841 .00010 -.042024 .000015 7 3 14 54173 -.00524 .00009 .45956 .00009 -.042593 .000048 7 3 15 54174 -.00457 .00009 .46078 .00009 -.043317 .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 = .0507 - .0852 cos A + .0070 sin A + .0295 cos C + .1107 sin C y = .3438 + .0065 cos A + .0750 sin A + .1107 cos C - .0295 sin C UT1-UTC = -.0363 - .00096 (MJD - 54179) - (UT2-UT1) where A = 2*pi*(MJD-54174)/365.25 and C = 2*pi*(MJD-54174)/435. TAI-UTC(MJD 54175) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54174)**0.80 S t = 0.00025 (MJD-54174)**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 16 54175 -0.0037 0.4617 -0.04439 2007 3 17 54176 -0.0025 0.4627 -0.04588 2007 3 18 54177 -0.0012 0.4636 -0.04773 2007 3 19 54178 0.0004 0.4645 -0.04980 2007 3 20 54179 0.0020 0.4653 -0.05192 2007 3 21 54180 0.0037 0.4661 -0.05387 2007 3 22 54181 0.0054 0.4669 -0.05550 2007 3 23 54182 0.0072 0.4677 -0.05673 2007 3 24 54183 0.0090 0.4685 -0.05763 2007 3 25 54184 0.0109 0.4692 -0.05835 2007 3 26 54185 0.0128 0.4699 -0.05902 2007 3 27 54186 0.0147 0.4706 -0.05976 2007 3 28 54187 0.0167 0.4712 -0.06061 2007 3 29 54188 0.0188 0.4718 -0.06160 2007 3 30 54189 0.0208 0.4724 -0.06274 2007 3 31 54190 0.0229 0.4729 -0.06402 2007 4 1 54191 0.0250 0.4734 -0.06539 2007 4 2 54192 0.0272 0.4739 -0.06678 2007 4 3 54193 0.0293 0.4743 -0.06810 2007 4 4 54194 0.0315 0.4747 -0.06931 2007 4 5 54195 0.0337 0.4751 -0.07036 2007 4 6 54196 0.0359 0.4754 -0.07126 2007 4 7 54197 0.0381 0.4757 -0.07205 2007 4 8 54198 0.0404 0.4760 -0.07275 2007 4 9 54199 0.0426 0.4762 -0.07343 2007 4 10 54200 0.0448 0.4764 -0.07418 2007 4 11 54201 0.0471 0.4766 -0.07507 2007 4 12 54202 0.0494 0.4767 -0.07622 2007 4 13 54203 0.0517 0.4768 -0.07771 2007 4 14 54204 0.0540 0.4769 -0.07956 2007 4 15 54205 0.0562 0.4769 -0.08172 2007 4 16 54206 0.0585 0.4769 -0.08402 2007 4 17 54207 0.0608 0.4768 -0.08630 2007 4 18 54208 0.0632 0.4768 -0.08835 2007 4 19 54209 0.0655 0.4767 -0.09008 2007 4 20 54210 0.0678 0.4765 -0.09147 2007 4 21 54211 0.0701 0.4763 -0.09262 2007 4 22 54212 0.0724 0.4761 -0.09366 2007 4 23 54213 0.0747 0.4759 -0.09472 2007 4 24 54214 0.0770 0.4756 -0.09589 2007 4 25 54215 0.0793 0.4753 -0.09721 2007 4 26 54216 0.0816 0.4749 -0.09868 2007 4 27 54217 0.0839 0.4746 -0.10027 2007 4 28 54218 0.0862 0.4741 -0.10193 2007 4 29 54219 0.0885 0.4737 -0.10362 2007 4 30 54220 0.0908 0.4732 -0.10526 2007 5 1 54221 0.0931 0.4727 -0.10678 2007 5 2 54222 0.0954 0.4721 -0.10813 2007 5 3 54223 0.0977 0.4715 -0.10929 2007 5 4 54224 0.0999 0.4709 -0.11026 2007 5 5 54225 0.1022 0.4702 -0.11108 2007 5 6 54226 0.1044 0.4695 -0.11179 2007 5 7 54227 0.1067 0.4688 -0.11247 2007 5 8 54228 0.1089 0.4681 -0.11322 2007 5 9 54229 0.1111 0.4673 -0.11413 2007 5 10 54230 0.1133 0.4664 -0.11528 2007 5 11 54231 0.1155 0.4656 -0.11671 2007 5 12 54232 0.1177 0.4647 -0.11839 2007 5 13 54233 0.1199 0.4638 -0.12023 2007 5 14 54234 0.1220 0.4628 -0.12209 2007 5 15 54235 0.1242 0.4618 -0.12378 2007 5 16 54236 0.1263 0.4608 -0.12517 2007 5 17 54237 0.1284 0.4597 -0.12622 2007 5 18 54238 0.1305 0.4587 -0.12695 2007 5 19 54239 0.1326 0.4575 -0.12749 2007 5 20 54240 0.1347 0.4564 -0.12799 2007 5 21 54241 0.1367 0.4552 -0.12855 2007 5 22 54242 0.1388 0.4540 -0.12925 2007 5 23 54243 0.1408 0.4528 -0.13011 2007 5 24 54244 0.1428 0.4515 -0.13109 2007 5 25 54245 0.1447 0.4502 -0.13215 2007 5 26 54246 0.1467 0.4489 -0.13323 2007 5 27 54247 0.1486 0.4475 -0.13426 2007 5 28 54248 0.1505 0.4461 -0.13518 2007 5 29 54249 0.1524 0.4447 -0.13594 2007 5 30 54250 0.1543 0.4433 -0.13651 2007 5 31 54251 0.1561 0.4418 -0.13688 2007 6 1 54252 0.1579 0.4403 -0.13709 2007 6 2 54253 0.1597 0.4388 -0.13718 2007 6 3 54254 0.1615 0.4372 -0.13723 2007 6 4 54255 0.1633 0.4356 -0.13732 2007 6 5 54256 0.1650 0.4340 -0.13756 2007 6 6 54257 0.1667 0.4324 -0.13799 2007 6 7 54258 0.1683 0.4307 -0.13868 2007 6 8 54259 0.1700 0.4290 -0.13961 2007 6 9 54260 0.1716 0.4273 -0.14071 2007 6 10 54261 0.1732 0.4256 -0.14187 2007 6 11 54262 0.1747 0.4238 -0.14294 2007 6 12 54263 0.1763 0.4221 -0.14377 2007 6 13 54264 0.1778 0.4203 -0.14431 2007 6 14 54265 0.1792 0.4184 -0.14454 2007 6 15 54266 0.1807 0.4166 -0.14456 2007 6 16 54267 0.1821 0.4147 -0.14449 2007 6 17 54268 0.1835 0.4128 -0.14446 2007 6 18 54269 0.1848 0.4109 -0.14457 2007 6 19 54270 0.1861 0.4090 -0.14486 2007 6 20 54271 0.1874 0.4070 -0.14531 2007 6 21 54272 0.1887 0.4051 -0.14586 2007 6 22 54273 0.1899 0.4031 -0.14645 2007 6 23 54274 0.1911 0.4011 -0.14701 2007 6 24 54275 0.1922 0.3991 -0.14748 2007 6 25 54276 0.1933 0.3970 -0.14781 2007 6 26 54277 0.1944 0.3950 -0.14795 2007 6 27 54278 0.1954 0.3929 -0.14792 2007 6 28 54279 0.1965 0.3908 -0.14770 2007 6 29 54280 0.1974 0.3887 -0.14734 2007 6 30 54281 0.1984 0.3866 -0.14693 2007 7 1 54282 0.1993 0.3844 -0.14655 2007 7 2 54283 0.2002 0.3823 -0.14630 2007 7 3 54284 0.2010 0.3801 -0.14627 2007 7 4 54285 0.2018 0.3780 -0.14650 2007 7 5 54286 0.2025 0.3758 -0.14698 2007 7 6 54287 0.2033 0.3736 -0.14763 2007 7 7 54288 0.2039 0.3714 -0.14836 2007 7 8 54289 0.2046 0.3691 -0.14901 2007 7 9 54290 0.2052 0.3669 -0.14947 2007 7 10 54291 0.2058 0.3647 -0.14966 2007 7 11 54292 0.2063 0.3624 -0.14958 2007 7 12 54293 0.2068 0.3602 -0.14927 2007 7 13 54294 0.2072 0.3579 -0.14886 2007 7 14 54295 0.2077 0.3557 -0.14846 2007 7 15 54296 0.2080 0.3534 -0.14821 2007 7 16 54297 0.2084 0.3511 -0.14814 2007 7 17 54298 0.2087 0.3488 -0.14827 2007 7 18 54299 0.2089 0.3465 -0.14856 2007 7 19 54300 0.2091 0.3442 -0.14893 2007 7 20 54301 0.2093 0.3420 -0.14930 2007 7 21 54302 0.2095 0.3397 -0.14961 2007 7 22 54303 0.2096 0.3374 -0.14981 2007 7 23 54304 0.2096 0.3351 -0.14985 2007 7 24 54305 0.2096 0.3328 -0.14971 2007 7 25 54306 0.2096 0.3305 -0.14941 2007 7 26 54307 0.2096 0.3282 -0.14899 2007 7 27 54308 0.2095 0.3258 -0.14851 2007 7 28 54309 0.2093 0.3236 -0.14806 2007 7 29 54310 0.2091 0.3213 -0.14773 2007 7 30 54311 0.2089 0.3190 -0.14762 2007 7 31 54312 0.2087 0.3167 -0.14779 2007 8 1 54313 0.2084 0.3144 -0.14826 2007 8 2 54314 0.2080 0.3121 -0.14895 2007 8 3 54315 0.2076 0.3098 -0.14975 2007 8 4 54316 0.2072 0.3076 -0.15051 2007 8 5 54317 0.2067 0.3053 -0.15109 2007 8 6 54318 0.2062 0.3030 -0.15142 2007 8 7 54319 0.2057 0.3008 -0.15146 2007 8 8 54320 0.2051 0.2985 -0.15128 2007 8 9 54321 0.2045 0.2963 -0.15098 2007 8 10 54322 0.2038 0.2941 -0.15069 2007 8 11 54323 0.2031 0.2919 -0.15051 2007 8 12 54324 0.2024 0.2897 -0.15052 2007 8 13 54325 0.2016 0.2875 -0.15075 2007 8 14 54326 0.2008 0.2853 -0.15117 2007 8 15 54327 0.1999 0.2831 -0.15171 2007 8 16 54328 0.1990 0.2810 -0.15231 2007 8 17 54329 0.1981 0.2789 -0.15287 2007 8 18 54330 0.1971 0.2767 -0.15334 2007 8 19 54331 0.1961 0.2746 -0.15366 2007 8 20 54332 0.1951 0.2725 -0.15382 2007 8 21 54333 0.1940 0.2704 -0.15383 2007 8 22 54334 0.1929 0.2684 -0.15370 2007 8 23 54335 0.1917 0.2663 -0.15351 2007 8 24 54336 0.1905 0.2643 -0.15331 2007 8 25 54337 0.1893 0.2623 -0.15321 2007 8 26 54338 0.1880 0.2603 -0.15331 2007 8 27 54339 0.1867 0.2583 -0.15370 2007 8 28 54340 0.1854 0.2564 -0.15441 2007 8 29 54341 0.1840 0.2544 -0.15541 2007 8 30 54342 0.1826 0.2525 -0.15659 2007 8 31 54343 0.1811 0.2506 -0.15780 2007 9 1 54344 0.1796 0.2488 -0.15887 2007 9 2 54345 0.1781 0.2469 -0.15967 2007 9 3 54346 0.1766 0.2451 -0.16017 2007 9 4 54347 0.1750 0.2433 -0.16042 2007 9 5 54348 0.1734 0.2415 -0.16050 2007 9 6 54349 0.1717 0.2398 -0.16056 2007 9 7 54350 0.1701 0.2381 -0.16070 2007 9 8 54351 0.1684 0.2364 -0.16101 2007 9 9 54352 0.1666 0.2347 -0.16152 2007 9 10 54353 0.1648 0.2330 -0.16222 2007 9 11 54354 0.1630 0.2314 -0.16305 2007 9 12 54355 0.1612 0.2298 -0.16394 2007 9 13 54356 0.1593 0.2283 -0.16482 2007 9 14 54357 0.1574 0.2267 -0.16559 2007 9 15 54358 0.1555 0.2252 -0.16623 2007 9 16 54359 0.1536 0.2237 -0.16668 2007 9 17 54360 0.1516 0.2223 -0.16697 2007 9 18 54361 0.1496 0.2209 -0.16713 2007 9 19 54362 0.1476 0.2195 -0.16723 2007 9 20 54363 0.1455 0.2181 -0.16733 2007 9 21 54364 0.1434 0.2168 -0.16754 2007 9 22 54365 0.1413 0.2155 -0.16796 2007 9 23 54366 0.1392 0.2142 -0.16865 2007 9 24 54367 0.1370 0.2130 -0.16969 2007 9 25 54368 0.1349 0.2118 -0.17105 2007 9 26 54369 0.1327 0.2106 -0.17266 2007 9 27 54370 0.1304 0.2095 -0.17438 2007 9 28 54371 0.1282 0.2084 -0.17602 2007 9 29 54372 0.1259 0.2073 -0.17742 2007 9 30 54373 0.1237 0.2063 -0.17850 2007 10 1 54374 0.1213 0.2053 -0.17928 2007 10 2 54375 0.1190 0.2043 -0.17985 2007 10 3 54376 0.1167 0.2034 -0.18034 2007 10 4 54377 0.1143 0.2025 -0.18089 2007 10 5 54378 0.1119 0.2016 -0.18159 2007 10 6 54379 0.1095 0.2008 -0.18247 2007 10 7 54380 0.1071 0.2000 -0.18355 2007 10 8 54381 0.1047 0.1993 -0.18478 2007 10 9 54382 0.1022 0.1986 -0.18611 2007 10 10 54383 0.0998 0.1979 -0.18746 2007 10 11 54384 0.0973 0.1973 -0.18877 2007 10 12 54385 0.0948 0.1967 -0.18998 2007 10 13 54386 0.0923 0.1961 -0.19103 2007 10 14 54387 0.0898 0.1956 -0.19192 2007 10 15 54388 0.0873 0.1951 -0.19267 2007 10 16 54389 0.0848 0.1946 -0.19332 2007 10 17 54390 0.0822 0.1942 -0.19392 2007 10 18 54391 0.0797 0.1939 -0.19453 2007 10 19 54392 0.0771 0.1935 -0.19524 2007 10 20 54393 0.0745 0.1932 -0.19616 2007 10 21 54394 0.0720 0.1930 -0.19737 2007 10 22 54395 0.0694 0.1928 -0.19891 2007 10 23 54396 0.0668 0.1926 -0.20070 2007 10 24 54397 0.0642 0.1925 -0.20265 2007 10 25 54398 0.0616 0.1924 -0.20462 2007 10 26 54399 0.0590 0.1923 -0.20646 2007 10 27 54400 0.0564 0.1923 -0.20800 2007 10 28 54401 0.0538 0.1923 -0.20922 2007 10 29 54402 0.0512 0.1924 -0.21015 2007 10 30 54403 0.0486 0.1925 -0.21094 2007 10 31 54404 0.0460 0.1926 -0.21176 2007 11 1 54405 0.0433 0.1928 -0.21273 2007 11 2 54406 0.0407 0.1930 -0.21393 2007 11 3 54407 0.0381 0.1933 -0.21535 2007 11 4 54408 0.0355 0.1936 -0.21689 2007 11 5 54409 0.0329 0.1939 -0.21847 2007 11 6 54410 0.0303 0.1943 -0.22009 2007 11 7 54411 0.0277 0.1947 -0.22163 2007 11 8 54412 0.0251 0.1951 -0.22300 2007 11 9 54413 0.0226 0.1956 -0.22419 2007 11 10 54414 0.0200 0.1962 -0.22518 2007 11 11 54415 0.0174 0.1967 -0.22603 2007 11 12 54416 0.0149 0.1974 -0.22679 2007 11 13 54417 0.0123 0.1980 -0.22749 2007 11 14 54418 0.0098 0.1987 -0.22822 2007 11 15 54419 0.0072 0.1994 -0.22902 2007 11 16 54420 0.0047 0.2002 -0.23003 2007 11 17 54421 0.0022 0.2010 -0.23133 2007 11 18 54422 -0.0003 0.2018 -0.23293 2007 11 19 54423 -0.0028 0.2027 -0.23481 2007 11 20 54424 -0.0053 0.2036 -0.23687 2007 11 21 54425 -0.0077 0.2046 -0.23898 2007 11 22 54426 -0.0102 0.2056 -0.24099 2007 11 23 54427 -0.0126 0.2066 -0.24279 2007 11 24 54428 -0.0150 0.2077 -0.24422 2007 11 25 54429 -0.0174 0.2088 -0.24529 2007 11 26 54430 -0.0198 0.2099 -0.24614 2007 11 27 54431 -0.0221 0.2111 -0.24701 2007 11 28 54432 -0.0245 0.2123 -0.24805 2007 11 29 54433 -0.0268 0.2136 -0.24933 2007 11 30 54434 -0.0291 0.2148 -0.25084 2007 12 1 54435 -0.0314 0.2162 -0.25261 2007 12 2 54436 -0.0337 0.2175 -0.25449 2007 12 3 54437 -0.0359 0.2189 -0.25642 2007 12 4 54438 -0.0381 0.2203 -0.25828 2007 12 5 54439 -0.0403 0.2218 -0.25996 2007 12 6 54440 -0.0425 0.2233 -0.26147 2007 12 7 54441 -0.0446 0.2248 -0.26278 2007 12 8 54442 -0.0467 0.2263 -0.26385 2007 12 9 54443 -0.0488 0.2279 -0.26472 2007 12 10 54444 -0.0509 0.2295 -0.26543 2007 12 11 54445 -0.0529 0.2312 -0.26607 2007 12 12 54446 -0.0550 0.2329 -0.26672 2007 12 13 54447 -0.0569 0.2346 -0.26742 2007 12 14 54448 -0.0589 0.2363 -0.26828 2007 12 15 54449 -0.0608 0.2381 -0.26938 2007 12 16 54450 -0.0627 0.2399 -0.27063 2007 12 17 54451 -0.0646 0.2417 -0.27201 2007 12 18 54452 -0.0664 0.2436 -0.27338 2007 12 19 54453 -0.0683 0.2454 -0.27469 2007 12 20 54454 -0.0700 0.2474 -0.27581 2007 12 21 54455 -0.0718 0.2493 -0.27665 2007 12 22 54456 -0.0735 0.2513 -0.27715 2007 12 23 54457 -0.0752 0.2533 -0.27736 2007 12 24 54458 -0.0768 0.2553 -0.27746 2007 12 25 54459 -0.0784 0.2573 -0.27761 2007 12 26 54460 -0.0800 0.2594 -0.27788 2007 12 27 54461 -0.0815 0.2615 -0.27834 2007 12 28 54462 -0.0831 0.2636 -0.27904 2007 12 29 54463 -0.0845 0.2657 -0.27991 2007 12 30 54464 -0.0860 0.2679 -0.28088 2007 12 31 54465 -0.0874 0.2701 -0.28185 2008 1 1 54466 -0.0887 0.2723 -0.28275 2008 1 2 54467 -0.0901 0.2745 -0.28349 2008 1 3 54468 -0.0913 0.2767 -0.28411 2008 1 4 54469 -0.0926 0.2790 -0.28458 2008 1 5 54470 -0.0938 0.2813 -0.28491 2008 1 6 54471 -0.0950 0.2836 -0.28512 2008 1 7 54472 -0.0961 0.2859 -0.28527 2008 1 8 54473 -0.0972 0.2882 -0.28548 2008 1 9 54474 -0.0982 0.2906 -0.28580 2008 1 10 54475 -0.0993 0.2930 -0.28633 2008 1 11 54476 -0.1002 0.2953 -0.28716 2008 1 12 54477 -0.1012 0.2977 -0.28830 2008 1 13 54478 -0.1021 0.3002 -0.28968 2008 1 14 54479 -0.1029 0.3026 -0.29111 2008 1 15 54480 -0.1037 0.3050 -0.29248 2008 1 16 54481 -0.1045 0.3075 -0.29370 2008 1 17 54482 -0.1052 0.3099 -0.29468 2008 1 18 54483 -0.1059 0.3124 -0.29546 2008 1 19 54484 -0.1065 0.3149 -0.29607 2008 1 20 54485 -0.1071 0.3174 -0.29659 2008 1 21 54486 -0.1077 0.3199 -0.29715 2008 1 22 54487 -0.1082 0.3224 -0.29794 2008 1 23 54488 -0.1086 0.3250 -0.29899 2008 1 24 54489 -0.1091 0.3275 -0.30024 2008 1 25 54490 -0.1094 0.3300 -0.30168 2008 1 26 54491 -0.1098 0.3326 -0.30319 2008 1 27 54492 -0.1101 0.3351 -0.30463 2008 1 28 54493 -0.1103 0.3377 -0.30590 2008 1 29 54494 -0.1105 0.3402 -0.30699 2008 1 30 54495 -0.1107 0.3428 -0.30785 2008 1 31 54496 -0.1108 0.3453 -0.30851 2008 2 1 54497 -0.1109 0.3479 -0.30904 2008 2 2 54498 -0.1109 0.3505 -0.30944 2008 2 3 54499 -0.1109 0.3530 -0.30982 2008 2 4 54500 -0.1108 0.3556 -0.31021 2008 2 5 54501 -0.1107 0.3582 -0.31072 2008 2 6 54502 -0.1105 0.3607 -0.31132 2008 2 7 54503 -0.1103 0.3633 -0.31211 2008 2 8 54504 -0.1101 0.3658 -0.31320 2008 2 9 54505 -0.1098 0.3684 -0.31454 2008 2 10 54506 -0.1095 0.3709 -0.31596 2008 2 11 54507 -0.1091 0.3735 -0.31730 2008 2 12 54508 -0.1087 0.3760 -0.31845 2008 2 13 54509 -0.1082 0.3786 -0.31936 2008 2 14 54510 -0.1077 0.3811 -0.31999 2008 2 15 54511 -0.1071 0.3836 -0.32035 2008 2 16 54512 -0.1065 0.3861 -0.32053 2008 2 17 54513 -0.1059 0.3886 -0.32069 2008 2 18 54514 -0.1052 0.3911 -0.32096 2008 2 19 54515 -0.1045 0.3936 -0.32140 2008 2 20 54516 -0.1037 0.3961 -0.32202 2008 2 21 54517 -0.1029 0.3985 -0.32280 2008 2 22 54518 -0.1020 0.4010 -0.32370 2008 2 23 54519 -0.1011 0.4034 -0.32466 2008 2 24 54520 -0.1002 0.4058 -0.32560 2008 2 25 54521 -0.0992 0.4082 -0.32639 2008 2 26 54522 -0.0982 0.4106 -0.32703 2008 2 27 54523 -0.0971 0.4130 -0.32752 2008 2 28 54524 -0.0960 0.4154 -0.32792 2008 2 29 54525 -0.0948 0.4177 -0.32814 2008 3 1 54526 -0.0936 0.4201 -0.32824 2008 3 2 54527 -0.0924 0.4224 -0.32835 2008 3 3 54528 -0.0911 0.4247 -0.32858 2008 3 4 54529 -0.0898 0.4269 -0.32898 2008 3 5 54530 -0.0884 0.4292 -0.32962 2008 3 6 54531 -0.0871 0.4314 -0.33059 2008 3 7 54532 -0.0856 0.4336 -0.33187 2008 3 8 54533 -0.0841 0.4358 -0.33340 2008 3 9 54534 -0.0826 0.4380 -0.33503 2008 3 10 54535 -0.0811 0.4401 -0.33658 2008 3 11 54536 -0.0795 0.4422 -0.33788 2008 3 12 54537 -0.0778 0.4443 -0.33885 2008 3 13 54538 -0.0762 0.4464 -0.33955 2008 3 14 54539 -0.0745 0.4485 -0.34004 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) 54155 -58.51 .27 -4.13 .17 54156 -58.32 .27 -4.33 .16 54157 -57.97 .27 -4.53 .16 54158 -57.52 .74 -4.67 .34 54159 -57.04 .74 -4.77 .13 54160 -56.65 .74 -4.79 .13 54161 -56.43 .74 -4.69 .13 54162 -56.34 .74 -4.44 .17 54163 -56.29 .74 -4.16 .17 54164 -56.20 .27 -4.02 .17 54165 -56.16 .37 -4.12 .17 54166 -56.22 .37 -4.36 .17 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54155 0.156 0.107 -0.280 0.170 54156 0.161 0.107 -0.270 0.160 54157 0.184 0.107 -0.279 0.160 54158 0.214 0.294 -0.278 0.340 54159 0.240 0.294 -0.285 0.130 54160 0.256 0.294 -0.279 0.130 54161 0.264 0.294 -0.279 0.130 54162 0.266 0.294 -0.271 0.170 54163 0.255 0.294 -0.264 0.170 54164 0.248 0.107 -0.244 0.170 54165 0.238 0.147 -0.240 0.170 54166 0.225 0.147 -0.260 0.170 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.