********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 June 2007 Vol. XX No. 026 ______________________________________________________________________ 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 = -0.2 seconds beginning 14 June 2007 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * There will NOT be a leap second introduced * * in UTC on 31 December 2007. * ********************************************************************** ________________________________________________________________________ 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 6 22 54273 .19149 .00009 .42725 .00009 -.154889 .000005 7 6 23 54274 .19356 .00009 .42499 .00009 -.155594 .000006 7 6 24 54275 .19561 .00009 .42288 .00009 -.156209 .000007 7 6 25 54276 .19791 .00009 .42088 .00009 -.156725 .000010 7 6 26 54277 .20063 .00009 .41917 .00009 -.157072 .000010 7 6 27 54278 .20317 .00009 .41781 .00009 -.157265 .000048 7 6 28 54279 .20537 .00009 .41632 .00009 -.157292 .000057 IERS Final Values MJD x y UT1-UTC " " s 7 5 5 54225 .0874 .4893 -.11217 7 5 6 54226 .0896 .4884 -.11289 7 5 7 54227 .0916 .4874 -.11354 7 5 8 54228 .0936 .4866 -.11422 7 5 9 54229 .0954 .4859 -.11514 7 5 10 54230 .0974 .4851 -.11632 7 5 11 54231 .0996 .4845 -.11782 7 5 12 54232 .1016 .4839 -.11966 7 5 13 54233 .1038 .4833 -.12182 7 5 14 54234 .1065 .4825 -.12404 7 5 15 54235 .1094 .4818 -.12611 7 5 16 54236 .1123 .4809 -.12785 7 5 17 54237 .1148 .4800 -.12923 7 5 18 54238 .1171 .4791 -.13032 7 5 19 54239 .1191 .4781 -.13123 7 5 20 54240 .1209 .4769 -.13211 7 5 21 54241 .1225 .4755 -.13305 7 5 22 54242 .1243 .4741 -.13397 7 5 23 54243 .1267 .4732 -.13493 7 5 24 54244 .1290 .4727 -.13605 7 5 25 54245 .1314 .4720 -.13734 7 5 26 54246 .1337 .4711 -.13864 7 5 27 54247 .1355 .4703 -.13989 7 5 28 54248 .1371 .4690 -.14103 7 5 29 54249 .1388 .4675 -.14201 7 5 30 54250 .1408 .4658 -.14283 7 5 31 54251 .1434 .4639 -.14348 7 6 1 54252 .1463 .4622 -.14394 7 6 2 54253 .1491 .4605 -.14423 7 6 3 54254 .1515 .4590 -.14439 _______________________________________________________________________ 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 = .0674 + .0010 cos A + .0867 sin A + .1354 cos C - .0116 sin C y = .3491 + .0794 cos A - .0032 sin A - .0116 cos C - .1354 sin C UT1-UTC = -.1395 - .00097 (MJD - 54284) - (UT2-UT1) where A = 2*pi*(MJD-54279)/365.25 and C = 2*pi*(MJD-54279)/435. TAI-UTC(MJD 54280) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54279)**0.80 S t = 0.00025 (MJD-54279)**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 6 29 54280 0.2072 0.4148 -0.15715 2007 6 30 54281 0.2088 0.4128 -0.15696 2007 7 1 54282 0.2102 0.4107 -0.15684 2007 7 2 54283 0.2115 0.4084 -0.15686 2007 7 3 54284 0.2128 0.4061 -0.15708 2007 7 4 54285 0.2141 0.4038 -0.15756 2007 7 5 54286 0.2153 0.4014 -0.15828 2007 7 6 54287 0.2164 0.3991 -0.15916 2007 7 7 54288 0.2174 0.3966 -0.16011 2007 7 8 54289 0.2183 0.3942 -0.16098 2007 7 9 54290 0.2192 0.3917 -0.16163 2007 7 10 54291 0.2200 0.3892 -0.16201 2007 7 11 54292 0.2207 0.3866 -0.16209 2007 7 12 54293 0.2214 0.3840 -0.16192 2007 7 13 54294 0.2221 0.3814 -0.16162 2007 7 14 54295 0.2226 0.3788 -0.16133 2007 7 15 54296 0.2232 0.3762 -0.16117 2007 7 16 54297 0.2236 0.3735 -0.16117 2007 7 17 54298 0.2241 0.3709 -0.16137 2007 7 18 54299 0.2244 0.3682 -0.16173 2007 7 19 54300 0.2247 0.3655 -0.16217 2007 7 20 54301 0.2250 0.3628 -0.16263 2007 7 21 54302 0.2252 0.3601 -0.16304 2007 7 22 54303 0.2254 0.3574 -0.16334 2007 7 23 54304 0.2255 0.3547 -0.16349 2007 7 24 54305 0.2256 0.3520 -0.16347 2007 7 25 54306 0.2256 0.3493 -0.16329 2007 7 26 54307 0.2256 0.3466 -0.16302 2007 7 27 54308 0.2256 0.3439 -0.16269 2007 7 28 54309 0.2254 0.3412 -0.16241 2007 7 29 54310 0.2253 0.3385 -0.16227 2007 7 30 54311 0.2251 0.3357 -0.16235 2007 7 31 54312 0.2248 0.3330 -0.16271 2007 8 1 54313 0.2245 0.3303 -0.16334 2007 8 2 54314 0.2242 0.3276 -0.16420 2007 8 3 54315 0.2238 0.3249 -0.16516 2007 8 4 54316 0.2233 0.3222 -0.16606 2007 8 5 54317 0.2229 0.3196 -0.16678 2007 8 6 54318 0.2223 0.3169 -0.16722 2007 8 7 54319 0.2218 0.3142 -0.16736 2007 8 8 54320 0.2211 0.3116 -0.16728 2007 8 9 54321 0.2205 0.3089 -0.16706 2007 8 10 54322 0.2198 0.3063 -0.16684 2007 8 11 54323 0.2190 0.3036 -0.16673 2007 8 12 54324 0.2182 0.3010 -0.16681 2007 8 13 54325 0.2174 0.2984 -0.16711 2007 8 14 54326 0.2165 0.2958 -0.16759 2007 8 15 54327 0.2156 0.2932 -0.16822 2007 8 16 54328 0.2146 0.2907 -0.16890 2007 8 17 54329 0.2136 0.2881 -0.16955 2007 8 18 54330 0.2125 0.2856 -0.17010 2007 8 19 54331 0.2114 0.2831 -0.17049 2007 8 20 54332 0.2102 0.2806 -0.17071 2007 8 21 54333 0.2090 0.2781 -0.17075 2007 8 22 54334 0.2078 0.2756 -0.17066 2007 8 23 54335 0.2065 0.2732 -0.17047 2007 8 24 54336 0.2052 0.2707 -0.17029 2007 8 25 54337 0.2039 0.2683 -0.17019 2007 8 26 54338 0.2025 0.2660 -0.17028 2007 8 27 54339 0.2010 0.2636 -0.17065 2007 8 28 54340 0.1995 0.2612 -0.17132 2007 8 29 54341 0.1980 0.2589 -0.17228 2007 8 30 54342 0.1964 0.2566 -0.17341 2007 8 31 54343 0.1948 0.2544 -0.17457 2007 9 1 54344 0.1932 0.2521 -0.17557 2007 9 2 54345 0.1915 0.2499 -0.17631 2007 9 3 54346 0.1898 0.2477 -0.17673 2007 9 4 54347 0.1880 0.2455 -0.17689 2007 9 5 54348 0.1862 0.2434 -0.17689 2007 9 6 54349 0.1844 0.2412 -0.17687 2007 9 7 54350 0.1825 0.2392 -0.17692 2007 9 8 54351 0.1806 0.2371 -0.17715 2007 9 9 54352 0.1787 0.2351 -0.17759 2007 9 10 54353 0.1767 0.2331 -0.17822 2007 9 11 54354 0.1747 0.2311 -0.17902 2007 9 12 54355 0.1727 0.2291 -0.17991 2007 9 13 54356 0.1706 0.2272 -0.18081 2007 9 14 54357 0.1685 0.2254 -0.18165 2007 9 15 54358 0.1663 0.2235 -0.18238 2007 9 16 54359 0.1641 0.2217 -0.18296 2007 9 17 54360 0.1619 0.2199 -0.18340 2007 9 18 54361 0.1597 0.2182 -0.18371 2007 9 19 54362 0.1574 0.2165 -0.18395 2007 9 20 54363 0.1551 0.2148 -0.18417 2007 9 21 54364 0.1528 0.2131 -0.18447 2007 9 22 54365 0.1504 0.2115 -0.18494 2007 9 23 54366 0.1480 0.2100 -0.18566 2007 9 24 54367 0.1456 0.2084 -0.18670 2007 9 25 54368 0.1432 0.2069 -0.18808 2007 9 26 54369 0.1407 0.2055 -0.18972 2007 9 27 54370 0.1382 0.2041 -0.19148 2007 9 28 54371 0.1357 0.2027 -0.19318 2007 9 29 54372 0.1331 0.2013 -0.19466 2007 9 30 54373 0.1306 0.2000 -0.19583 2007 10 1 54374 0.1280 0.1988 -0.19670 2007 10 2 54375 0.1254 0.1975 -0.19736 2007 10 3 54376 0.1227 0.1963 -0.19794 2007 10 4 54377 0.1201 0.1952 -0.19858 2007 10 5 54378 0.1174 0.1941 -0.19938 2007 10 6 54379 0.1147 0.1930 -0.20038 2007 10 7 54380 0.1120 0.1920 -0.20157 2007 10 8 54381 0.1092 0.1910 -0.20291 2007 10 9 54382 0.1065 0.1901 -0.20435 2007 10 10 54383 0.1037 0.1892 -0.20580 2007 10 11 54384 0.1009 0.1883 -0.20720 2007 10 12 54385 0.0981 0.1875 -0.20848 2007 10 13 54386 0.0952 0.1868 -0.20961 2007 10 14 54387 0.0924 0.1860 -0.21056 2007 10 15 54388 0.0895 0.1853 -0.21136 2007 10 16 54389 0.0867 0.1847 -0.21205 2007 10 17 54390 0.0838 0.1841 -0.21268 2007 10 18 54391 0.0809 0.1836 -0.21333 2007 10 19 54392 0.0780 0.1831 -0.21409 2007 10 20 54393 0.0751 0.1826 -0.21504 2007 10 21 54394 0.0722 0.1822 -0.21625 2007 10 22 54395 0.0692 0.1818 -0.21776 2007 10 23 54396 0.0663 0.1815 -0.21955 2007 10 24 54397 0.0634 0.1812 -0.22153 2007 10 25 54398 0.0604 0.1810 -0.22353 2007 10 26 54399 0.0574 0.1808 -0.22538 2007 10 27 54400 0.0545 0.1806 -0.22696 2007 10 28 54401 0.0515 0.1805 -0.22820 2007 10 29 54402 0.0485 0.1805 -0.22917 2007 10 30 54403 0.0456 0.1805 -0.23000 2007 10 31 54404 0.0426 0.1805 -0.23082 2007 11 1 54405 0.0396 0.1806 -0.23177 2007 11 2 54406 0.0366 0.1807 -0.23289 2007 11 3 54407 0.0337 0.1809 -0.23420 2007 11 4 54408 0.0307 0.1811 -0.23565 2007 11 5 54409 0.0277 0.1814 -0.23719 2007 11 6 54410 0.0247 0.1817 -0.23873 2007 11 7 54411 0.0218 0.1820 -0.24022 2007 11 8 54412 0.0188 0.1824 -0.24160 2007 11 9 54413 0.0159 0.1829 -0.24282 2007 11 10 54414 0.0129 0.1834 -0.24385 2007 11 11 54415 0.0100 0.1839 -0.24471 2007 11 12 54416 0.0070 0.1845 -0.24543 2007 11 13 54417 0.0041 0.1851 -0.24607 2007 11 14 54418 0.0012 0.1858 -0.24670 2007 11 15 54419 -0.0018 0.1865 -0.24739 2007 11 16 54420 -0.0047 0.1872 -0.24823 2007 11 17 54421 -0.0075 0.1880 -0.24928 2007 11 18 54422 -0.0104 0.1889 -0.25059 2007 11 19 54423 -0.0133 0.1898 -0.25214 2007 11 20 54424 -0.0161 0.1907 -0.25390 2007 11 21 54425 -0.0190 0.1917 -0.25573 2007 11 22 54426 -0.0218 0.1927 -0.25751 2007 11 23 54427 -0.0246 0.1938 -0.25906 2007 11 24 54428 -0.0274 0.1949 -0.26032 2007 11 25 54429 -0.0302 0.1961 -0.26128 2007 11 26 54430 -0.0329 0.1972 -0.26203 2007 11 27 54431 -0.0357 0.1985 -0.26271 2007 11 28 54432 -0.0384 0.1998 -0.26347 2007 11 29 54433 -0.0411 0.2011 -0.26440 2007 11 30 54434 -0.0438 0.2024 -0.26551 2007 12 1 54435 -0.0464 0.2038 -0.26678 2007 12 2 54436 -0.0491 0.2053 -0.26813 2007 12 3 54437 -0.0517 0.2068 -0.26950 2007 12 4 54438 -0.0543 0.2083 -0.27080 2007 12 5 54439 -0.0568 0.2099 -0.27199 2007 12 6 54440 -0.0594 0.2115 -0.27302 2007 12 7 54441 -0.0619 0.2131 -0.27386 2007 12 8 54442 -0.0644 0.2148 -0.27453 2007 12 9 54443 -0.0669 0.2165 -0.27504 2007 12 10 54444 -0.0693 0.2183 -0.27545 2007 12 11 54445 -0.0717 0.2200 -0.27583 2007 12 12 54446 -0.0741 0.2219 -0.27626 2007 12 13 54447 -0.0764 0.2237 -0.27682 2007 12 14 54448 -0.0787 0.2256 -0.27756 2007 12 15 54449 -0.0810 0.2276 -0.27854 2007 12 16 54450 -0.0833 0.2295 -0.27975 2007 12 17 54451 -0.0855 0.2316 -0.28114 2007 12 18 54452 -0.0877 0.2336 -0.28264 2007 12 19 54453 -0.0899 0.2357 -0.28411 2007 12 20 54454 -0.0920 0.2378 -0.28543 2007 12 21 54455 -0.0941 0.2399 -0.28649 2007 12 22 54456 -0.0961 0.2421 -0.28728 2007 12 23 54457 -0.0982 0.2443 -0.28784 2007 12 24 54458 -0.1001 0.2465 -0.28830 2007 12 25 54459 -0.1021 0.2488 -0.28879 2007 12 26 54460 -0.1040 0.2511 -0.28943 2007 12 27 54461 -0.1059 0.2534 -0.29029 2007 12 28 54462 -0.1077 0.2557 -0.29134 2007 12 29 54463 -0.1095 0.2581 -0.29254 2007 12 30 54464 -0.1113 0.2605 -0.29381 2007 12 31 54465 -0.1130 0.2630 -0.29507 2008 1 1 54466 -0.1147 0.2654 -0.29628 2008 1 2 54467 -0.1163 0.2679 -0.29741 2008 1 3 54468 -0.1179 0.2704 -0.29843 2008 1 4 54469 -0.1195 0.2730 -0.29933 2008 1 5 54470 -0.1210 0.2755 -0.30012 2008 1 6 54471 -0.1225 0.2781 -0.30080 2008 1 7 54472 -0.1239 0.2807 -0.30142 2008 1 8 54473 -0.1253 0.2833 -0.30204 2008 1 9 54474 -0.1266 0.2860 -0.30272 2008 1 10 54475 -0.1279 0.2886 -0.30353 2008 1 11 54476 -0.1292 0.2913 -0.30452 2008 1 12 54477 -0.1304 0.2940 -0.30571 2008 1 13 54478 -0.1316 0.2968 -0.30707 2008 1 14 54479 -0.1327 0.2995 -0.30851 2008 1 15 54480 -0.1338 0.3023 -0.30994 2008 1 16 54481 -0.1348 0.3050 -0.31123 2008 1 17 54482 -0.1358 0.3078 -0.31230 2008 1 18 54483 -0.1367 0.3106 -0.31312 2008 1 19 54484 -0.1376 0.3135 -0.31372 2008 1 20 54485 -0.1385 0.3163 -0.31421 2008 1 21 54486 -0.1393 0.3191 -0.31470 2008 1 22 54487 -0.1400 0.3220 -0.31534 2008 1 23 54488 -0.1407 0.3249 -0.31621 2008 1 24 54489 -0.1414 0.3278 -0.31733 2008 1 25 54490 -0.1420 0.3306 -0.31864 2008 1 26 54491 -0.1426 0.3335 -0.32005 2008 1 27 54492 -0.1431 0.3365 -0.32145 2008 1 28 54493 -0.1435 0.3394 -0.32274 2008 1 29 54494 -0.1440 0.3423 -0.32387 2008 1 30 54495 -0.1443 0.3452 -0.32480 2008 1 31 54496 -0.1446 0.3482 -0.32550 2008 2 1 54497 -0.1449 0.3511 -0.32600 2008 2 2 54498 -0.1451 0.3540 -0.32639 2008 2 3 54499 -0.1453 0.3570 -0.32670 2008 2 4 54500 -0.1454 0.3599 -0.32701 2008 2 5 54501 -0.1455 0.3629 -0.32743 2008 2 6 54502 -0.1455 0.3658 -0.32803 2008 2 7 54503 -0.1455 0.3688 -0.32887 2008 2 8 54504 -0.1454 0.3718 -0.32994 2008 2 9 54505 -0.1453 0.3747 -0.33122 2008 2 10 54506 -0.1451 0.3777 -0.33266 2008 2 11 54507 -0.1449 0.3806 -0.33416 2008 2 12 54508 -0.1446 0.3835 -0.33554 2008 2 13 54509 -0.1443 0.3865 -0.33666 2008 2 14 54510 -0.1440 0.3894 -0.33748 2008 2 15 54511 -0.1435 0.3923 -0.33801 2008 2 16 54512 -0.1431 0.3953 -0.33837 2008 2 17 54513 -0.1426 0.3982 -0.33869 2008 2 18 54514 -0.1420 0.4011 -0.33908 2008 2 19 54515 -0.1414 0.4040 -0.33974 2008 2 20 54516 -0.1407 0.4069 -0.34069 2008 2 21 54517 -0.1400 0.4097 -0.34188 2008 2 22 54518 -0.1392 0.4126 -0.34327 2008 2 23 54519 -0.1384 0.4155 -0.34463 2008 2 24 54520 -0.1376 0.4183 -0.34600 2008 2 25 54521 -0.1367 0.4211 -0.34726 2008 2 26 54522 -0.1357 0.4239 -0.34835 2008 2 27 54523 -0.1347 0.4267 -0.34926 2008 2 28 54524 -0.1337 0.4295 -0.35000 2008 2 29 54525 -0.1326 0.4323 -0.35066 2008 3 1 54526 -0.1315 0.4350 -0.35122 2008 3 2 54527 -0.1303 0.4378 -0.35175 2008 3 3 54528 -0.1290 0.4405 -0.35232 2008 3 4 54529 -0.1278 0.4432 -0.35300 2008 3 5 54530 -0.1264 0.4459 -0.35395 2008 3 6 54531 -0.1251 0.4485 -0.35520 2008 3 7 54532 -0.1237 0.4511 -0.35676 2008 3 8 54533 -0.1222 0.4538 -0.35858 2008 3 9 54534 -0.1207 0.4563 -0.36054 2008 3 10 54535 -0.1192 0.4589 -0.36244 2008 3 11 54536 -0.1176 0.4615 -0.36415 2008 3 12 54537 -0.1160 0.4640 -0.36560 2008 3 13 54538 -0.1143 0.4665 -0.36673 2008 3 14 54539 -0.1126 0.4689 -0.36763 2008 3 15 54540 -0.1108 0.4714 -0.36842 2008 3 16 54541 -0.1090 0.4738 -0.36926 2008 3 17 54542 -0.1072 0.4762 -0.37024 2008 3 18 54543 -0.1053 0.4785 -0.37144 2008 3 19 54544 -0.1034 0.4809 -0.37287 2008 3 20 54545 -0.1014 0.4832 -0.37447 2008 3 21 54546 -0.0994 0.4854 -0.37621 2008 3 22 54547 -0.0974 0.4877 -0.37801 2008 3 23 54548 -0.0953 0.4899 -0.37986 2008 3 24 54549 -0.0932 0.4920 -0.38161 2008 3 25 54550 -0.0911 0.4942 -0.38316 2008 3 26 54551 -0.0889 0.4963 -0.38453 2008 3 27 54552 -0.0867 0.4984 -0.38574 2008 3 28 54553 -0.0844 0.5004 -0.38685 2008 3 29 54554 -0.0822 0.5024 -0.38786 2008 3 30 54555 -0.0798 0.5044 -0.38884 2008 3 31 54556 -0.0775 0.5063 -0.38986 2008 4 1 54557 -0.0751 0.5082 -0.39106 2008 4 2 54558 -0.0727 0.5101 -0.39251 2008 4 3 54559 -0.0702 0.5119 -0.39424 2008 4 4 54560 -0.0678 0.5137 -0.39626 2008 4 5 54561 -0.0652 0.5154 -0.39838 2008 4 6 54562 -0.0627 0.5171 -0.40042 2008 4 7 54563 -0.0601 0.5188 -0.40230 2008 4 8 54564 -0.0575 0.5205 -0.40388 2008 4 9 54565 -0.0549 0.5220 -0.40512 2008 4 10 54566 -0.0523 0.5236 -0.40608 2008 4 11 54567 -0.0496 0.5251 -0.40690 2008 4 12 54568 -0.0469 0.5266 -0.40776 2008 4 13 54569 -0.0441 0.5280 -0.40873 2008 4 14 54570 -0.0414 0.5294 -0.40986 2008 4 15 54571 -0.0386 0.5307 -0.41119 2008 4 16 54572 -0.0358 0.5320 -0.41268 2008 4 17 54573 -0.0330 0.5333 -0.41423 2008 4 18 54574 -0.0301 0.5345 -0.41581 2008 4 19 54575 -0.0273 0.5357 -0.41736 2008 4 20 54576 -0.0244 0.5368 -0.41880 2008 4 21 54577 -0.0215 0.5379 -0.42012 2008 4 22 54578 -0.0186 0.5389 -0.42116 2008 4 23 54579 -0.0156 0.5399 -0.42198 2008 4 24 54580 -0.0127 0.5408 -0.42267 2008 4 25 54581 -0.0097 0.5418 -0.42328 2008 4 26 54582 -0.0067 0.5426 -0.42388 2008 4 27 54583 -0.0037 0.5434 -0.42453 2008 4 28 54584 -0.0007 0.5442 -0.42530 2008 4 29 54585 0.0023 0.5449 -0.42629 2008 4 30 54586 0.0054 0.5456 -0.42751 2008 5 1 54587 0.0084 0.5462 -0.42893 2008 5 2 54588 0.0115 0.5468 -0.43051 2008 5 3 54589 0.0145 0.5473 -0.43217 2008 5 4 54590 0.0176 0.5478 -0.43373 2008 5 5 54591 0.0207 0.5482 -0.43513 2008 5 6 54592 0.0238 0.5486 -0.43626 2008 5 7 54593 0.0269 0.5489 -0.43708 2008 5 8 54594 0.0300 0.5492 -0.43770 2008 5 9 54595 0.0331 0.5495 -0.43826 2008 5 10 54596 0.0363 0.5497 -0.43892 2008 5 11 54597 0.0394 0.5498 -0.43978 2008 5 12 54598 0.0425 0.5499 -0.44085 2008 5 13 54599 0.0456 0.5500 -0.44204 2008 5 14 54600 0.0488 0.5500 -0.44332 2008 5 15 54601 0.0519 0.5499 -0.44457 2008 5 16 54602 0.0550 0.5498 -0.44571 2008 5 17 54603 0.0581 0.5497 -0.44674 2008 5 18 54604 0.0613 0.5495 -0.44762 2008 5 19 54605 0.0644 0.5493 -0.44831 2008 5 20 54606 0.0675 0.5490 -0.44878 2008 5 21 54607 0.0706 0.5487 -0.44907 2008 5 22 54608 0.0737 0.5483 -0.44925 2008 5 23 54609 0.0768 0.5479 -0.44943 2008 5 24 54610 0.0799 0.5474 -0.44963 2008 5 25 54611 0.0830 0.5469 -0.44994 2008 5 26 54612 0.0861 0.5463 -0.45042 2008 5 27 54613 0.0892 0.5457 -0.45109 2008 5 28 54614 0.0922 0.5450 -0.45200 2008 5 29 54615 0.0953 0.5443 -0.45311 2008 5 30 54616 0.0983 0.5435 -0.45437 2008 5 31 54617 0.1013 0.5427 -0.45564 2008 6 1 54618 0.1043 0.5419 -0.45672 2008 6 2 54619 0.1073 0.5410 -0.45752 2008 6 3 54620 0.1103 0.5400 -0.45806 2008 6 4 54621 0.1133 0.5390 -0.45833 2008 6 5 54622 0.1162 0.5380 -0.45844 2008 6 6 54623 0.1191 0.5369 -0.45857 2008 6 7 54624 0.1220 0.5358 -0.45884 2008 6 8 54625 0.1249 0.5346 -0.45933 2008 6 9 54626 0.1278 0.5334 -0.46006 2008 6 10 54627 0.1306 0.5322 -0.46090 2008 6 11 54628 0.1335 0.5309 -0.46177 2008 6 12 54629 0.1363 0.5295 -0.46256 2008 6 13 54630 0.1391 0.5281 -0.46325 2008 6 14 54631 0.1418 0.5267 -0.46384 2008 6 15 54632 0.1446 0.5252 -0.46428 2008 6 16 54633 0.1473 0.5237 -0.46454 2008 6 17 54634 0.1500 0.5222 -0.46462 2008 6 18 54635 0.1526 0.5206 -0.46454 2008 6 19 54636 0.1553 0.5189 -0.46441 2008 6 20 54637 0.1579 0.5173 -0.46430 2008 6 21 54638 0.1604 0.5155 -0.46424 2008 6 22 54639 0.1630 0.5138 -0.46427 2008 6 23 54640 0.1655 0.5120 -0.46448 2008 6 24 54641 0.1680 0.5102 -0.46497 2008 6 25 54642 0.1705 0.5083 -0.46571 2008 6 26 54643 0.1729 0.5064 -0.46663 2008 6 27 54644 0.1753 0.5044 -0.46759 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) 54260 -56.94 .21 -7.25 .34 54261 -57.23 .15 -7.06 .34 54262 -57.75 .15 -6.84 .34 54263 -58.34 .74 -6.76 .34 54264 -58.77 .74 -6.90 .15 54265 -58.94 .74 -7.16 .15 54266 -58.89 .74 -7.36 .15 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 54225 -54.4 -8.0 54226 -54.3 -8.0 54227 -54.2 -7.8 54228 -54.1 -7.7 54229 -54.1 -7.7 54230 -54.0 -7.8 54231 -54.1 -8.0 54232 -54.2 -8.0 54233 -54.4 -7.6 54234 -54.9 -7.1 54235 -55.6 -6.8 54236 -56.2 -6.9 54237 -56.5 -7.4 54238 -56.4 -7.8 54239 -56.1 -8.1 54240 -55.5 -8.2 54241 -55.0 -8.1 54242 -54.9 -7.8 54243 -55.2 -7.3 54244 -55.7 -6.9 54245 -56.0 -6.7 54246 -56.1 -6.7 54247 -56.1 -6.7 54248 -56.2 -6.8 54249 -56.3 -7.0 54250 -56.3 -7.3 54251 -56.3 -7.7 54252 -56.2 -7.8 54253 -56.2 -7.7 54254 -56.4 -7.5 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54260 0.024 0.084 -0.397 0.340 54261 0.018 0.060 -0.407 0.340 54262 0.006 0.060 -0.392 0.340 54263 -0.017 0.294 -0.374 0.340 54264 -0.038 0.294 -0.375 0.150 54265 -0.043 0.294 -0.403 0.150 54266 -0.031 0.294 -0.433 0.150 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 54225 0.31 -0.67 54226 0.31 -0.69 54227 0.31 -0.48 54228 0.32 -0.36 54229 0.28 -0.37 54230 0.29 -0.46 54231 0.23 -0.59 54232 0.18 -0.60 54233 0.15 -0.46 54234 0.11 -0.39 54235 0.10 -0.38 54236 0.12 -0.42 54237 0.14 -0.63 54238 0.18 -0.72 54239 0.15 -0.77 54240 0.15 -0.66 54241 0.12 -0.50 54242 0.11 -0.40 54243 0.15 -0.31 54244 0.18 -0.27 54245 0.17 -0.22 54246 0.12 -0.22 54247 0.06 -0.21 54248 0.02 -0.31 54249 0.03 -0.39 54250 0.11 -0.39 54251 0.20 -0.46 54252 0.31 -0.41 54253 0.33 -0.40 54254 0.24 -0.42 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.