********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 July 2007 Vol. XX No. 027 ______________________________________________________________________ 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 29 54280 .20667 .00009 .41488 .00009 -.157402 .000016 7 6 30 54281 .20787 .00009 .41337 .00009 -.157378 .000017 7 7 1 54282 .20859 .00009 .41168 .00010 -.157336 .000018 7 7 2 54283 .20906 .00009 .40958 .00010 -.157420 .000032 7 7 3 54284 .20969 .00010 .40728 .00010 -.157745 .000037 7 7 4 54285 .21060 .00009 .40515 .00010 -.158300 .000048 7 7 5 54286 .21173 .00009 .40302 .00010 -.159064 .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 = .0634 + .0099 cos A + .0862 sin A + .1353 cos C - .0246 sin C y = .3500 + .0790 cos A - .0107 sin A - .0246 cos C - .1353 sin C UT1-UTC = -.1490 - .00097 (MJD - 54291) - (UT2-UT1) where A = 2*pi*(MJD-54286)/365.25 and C = 2*pi*(MJD-54286)/435. TAI-UTC(MJD 54287) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54286)**0.80 S t = 0.00025 (MJD-54286)**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 7 6 54287 0.2127 0.4009 -0.15996 2007 7 7 54288 0.2138 0.3987 -0.16086 2007 7 8 54289 0.2147 0.3965 -0.16165 2007 7 9 54290 0.2155 0.3943 -0.16222 2007 7 10 54291 0.2162 0.3919 -0.16249 2007 7 11 54292 0.2168 0.3894 -0.16248 2007 7 12 54293 0.2174 0.3870 -0.16229 2007 7 13 54294 0.2180 0.3845 -0.16205 2007 7 14 54295 0.2186 0.3820 -0.16189 2007 7 15 54296 0.2191 0.3794 -0.16189 2007 7 16 54297 0.2196 0.3769 -0.16211 2007 7 17 54298 0.2200 0.3744 -0.16252 2007 7 18 54299 0.2204 0.3718 -0.16307 2007 7 19 54300 0.2207 0.3692 -0.16367 2007 7 20 54301 0.2210 0.3666 -0.16427 2007 7 21 54302 0.2212 0.3640 -0.16478 2007 7 22 54303 0.2214 0.3613 -0.16514 2007 7 23 54304 0.2216 0.3587 -0.16533 2007 7 24 54305 0.2217 0.3561 -0.16532 2007 7 25 54306 0.2217 0.3534 -0.16514 2007 7 26 54307 0.2217 0.3508 -0.16481 2007 7 27 54308 0.2217 0.3481 -0.16441 2007 7 28 54309 0.2216 0.3455 -0.16403 2007 7 29 54310 0.2215 0.3428 -0.16377 2007 7 30 54311 0.2213 0.3402 -0.16374 2007 7 31 54312 0.2211 0.3376 -0.16400 2007 8 1 54313 0.2208 0.3349 -0.16456 2007 8 2 54314 0.2205 0.3323 -0.16535 2007 8 3 54315 0.2202 0.3296 -0.16626 2007 8 4 54316 0.2198 0.3270 -0.16713 2007 8 5 54317 0.2194 0.3244 -0.16784 2007 8 6 54318 0.2189 0.3217 -0.16830 2007 8 7 54319 0.2183 0.3191 -0.16851 2007 8 8 54320 0.2178 0.3165 -0.16851 2007 8 9 54321 0.2172 0.3139 -0.16840 2007 8 10 54322 0.2165 0.3113 -0.16829 2007 8 11 54323 0.2158 0.3087 -0.16829 2007 8 12 54324 0.2150 0.3062 -0.16848 2007 8 13 54325 0.2142 0.3036 -0.16887 2007 8 14 54326 0.2134 0.3011 -0.16945 2007 8 15 54327 0.2125 0.2985 -0.17014 2007 8 16 54328 0.2116 0.2960 -0.17087 2007 8 17 54329 0.2106 0.2935 -0.17155 2007 8 18 54330 0.2096 0.2910 -0.17213 2007 8 19 54331 0.2086 0.2885 -0.17255 2007 8 20 54332 0.2075 0.2861 -0.17281 2007 8 21 54333 0.2063 0.2836 -0.17291 2007 8 22 54334 0.2052 0.2812 -0.17287 2007 8 23 54335 0.2039 0.2788 -0.17276 2007 8 24 54336 0.2027 0.2764 -0.17266 2007 8 25 54337 0.2014 0.2740 -0.17265 2007 8 26 54338 0.2000 0.2717 -0.17285 2007 8 27 54339 0.1986 0.2693 -0.17334 2007 8 28 54340 0.1972 0.2670 -0.17414 2007 8 29 54341 0.1957 0.2647 -0.17523 2007 8 30 54342 0.1942 0.2625 -0.17649 2007 8 31 54343 0.1927 0.2602 -0.17776 2007 9 1 54344 0.1911 0.2580 -0.17888 2007 9 2 54345 0.1895 0.2558 -0.17973 2007 9 3 54346 0.1878 0.2536 -0.18027 2007 9 4 54347 0.1861 0.2515 -0.18055 2007 9 5 54348 0.1844 0.2494 -0.18067 2007 9 6 54349 0.1826 0.2473 -0.18076 2007 9 7 54350 0.1808 0.2452 -0.18094 2007 9 8 54351 0.1790 0.2432 -0.18128 2007 9 9 54352 0.1771 0.2412 -0.18182 2007 9 10 54353 0.1752 0.2392 -0.18256 2007 9 11 54354 0.1732 0.2372 -0.18345 2007 9 12 54355 0.1712 0.2353 -0.18442 2007 9 13 54356 0.1692 0.2334 -0.18537 2007 9 14 54357 0.1672 0.2316 -0.18624 2007 9 15 54358 0.1651 0.2297 -0.18698 2007 9 16 54359 0.1630 0.2279 -0.18756 2007 9 17 54360 0.1608 0.2262 -0.18796 2007 9 18 54361 0.1586 0.2244 -0.18822 2007 9 19 54362 0.1564 0.2227 -0.18838 2007 9 20 54363 0.1542 0.2211 -0.18852 2007 9 21 54364 0.1519 0.2194 -0.18871 2007 9 22 54365 0.1496 0.2178 -0.18906 2007 9 23 54366 0.1473 0.2163 -0.18967 2007 9 24 54367 0.1449 0.2147 -0.19060 2007 9 25 54368 0.1426 0.2132 -0.19187 2007 9 26 54369 0.1401 0.2118 -0.19340 2007 9 27 54370 0.1377 0.2104 -0.19506 2007 9 28 54371 0.1352 0.2090 -0.19668 2007 9 29 54372 0.1328 0.2076 -0.19808 2007 9 30 54373 0.1303 0.2063 -0.19919 2007 10 1 54374 0.1277 0.2051 -0.20000 2007 10 2 54375 0.1252 0.2038 -0.20062 2007 10 3 54376 0.1226 0.2027 -0.20117 2007 10 4 54377 0.1200 0.2015 -0.20178 2007 10 5 54378 0.1174 0.2004 -0.20256 2007 10 6 54379 0.1147 0.1993 -0.20355 2007 10 7 54380 0.1121 0.1983 -0.20473 2007 10 8 54381 0.1094 0.1973 -0.20608 2007 10 9 54382 0.1067 0.1964 -0.20752 2007 10 10 54383 0.1040 0.1955 -0.20897 2007 10 11 54384 0.1012 0.1946 -0.21038 2007 10 12 54385 0.0985 0.1938 -0.21166 2007 10 13 54386 0.0957 0.1930 -0.21279 2007 10 14 54387 0.0930 0.1922 -0.21375 2007 10 15 54388 0.0902 0.1916 -0.21455 2007 10 16 54389 0.0874 0.1909 -0.21524 2007 10 17 54390 0.0845 0.1903 -0.21588 2007 10 18 54391 0.0817 0.1897 -0.21654 2007 10 19 54392 0.0789 0.1892 -0.21731 2007 10 20 54393 0.0760 0.1887 -0.21828 2007 10 21 54394 0.0731 0.1883 -0.21950 2007 10 22 54395 0.0703 0.1879 -0.22103 2007 10 23 54396 0.0674 0.1875 -0.22283 2007 10 24 54397 0.0645 0.1872 -0.22482 2007 10 25 54398 0.0616 0.1870 -0.22684 2007 10 26 54399 0.0587 0.1868 -0.22871 2007 10 27 54400 0.0558 0.1866 -0.23029 2007 10 28 54401 0.0529 0.1865 -0.23155 2007 10 29 54402 0.0500 0.1864 -0.23254 2007 10 30 54403 0.0471 0.1863 -0.23337 2007 10 31 54404 0.0441 0.1863 -0.23421 2007 11 1 54405 0.0412 0.1864 -0.23517 2007 11 2 54406 0.0383 0.1865 -0.23630 2007 11 3 54407 0.0354 0.1866 -0.23763 2007 11 4 54408 0.0324 0.1868 -0.23909 2007 11 5 54409 0.0295 0.1871 -0.24064 2007 11 6 54410 0.0266 0.1873 -0.24220 2007 11 7 54411 0.0237 0.1877 -0.24370 2007 11 8 54412 0.0208 0.1880 -0.24509 2007 11 9 54413 0.0179 0.1884 -0.24632 2007 11 10 54414 0.0150 0.1889 -0.24737 2007 11 11 54415 0.0121 0.1894 -0.24825 2007 11 12 54416 0.0092 0.1899 -0.24899 2007 11 13 54417 0.0063 0.1905 -0.24965 2007 11 14 54418 0.0034 0.1911 -0.25029 2007 11 15 54419 0.0006 0.1918 -0.25101 2007 11 16 54420 -0.0023 0.1925 -0.25187 2007 11 17 54421 -0.0051 0.1933 -0.25295 2007 11 18 54422 -0.0080 0.1941 -0.25428 2007 11 19 54423 -0.0108 0.1949 -0.25586 2007 11 20 54424 -0.0136 0.1958 -0.25764 2007 11 21 54425 -0.0164 0.1968 -0.25950 2007 11 22 54426 -0.0192 0.1978 -0.26130 2007 11 23 54427 -0.0219 0.1988 -0.26288 2007 11 24 54428 -0.0247 0.1998 -0.26416 2007 11 25 54429 -0.0274 0.2009 -0.26514 2007 11 26 54430 -0.0301 0.2021 -0.26592 2007 11 27 54431 -0.0328 0.2033 -0.26663 2007 11 28 54432 -0.0355 0.2045 -0.26742 2007 11 29 54433 -0.0382 0.2058 -0.26837 2007 11 30 54434 -0.0408 0.2071 -0.26952 2007 12 1 54435 -0.0434 0.2085 -0.27081 2007 12 2 54436 -0.0460 0.2098 -0.27220 2007 12 3 54437 -0.0486 0.2113 -0.27359 2007 12 4 54438 -0.0512 0.2127 -0.27492 2007 12 5 54439 -0.0537 0.2143 -0.27614 2007 12 6 54440 -0.0562 0.2158 -0.27720 2007 12 7 54441 -0.0587 0.2174 -0.27807 2007 12 8 54442 -0.0611 0.2190 -0.27877 2007 12 9 54443 -0.0636 0.2207 -0.27930 2007 12 10 54444 -0.0660 0.2224 -0.27974 2007 12 11 54445 -0.0683 0.2241 -0.28014 2007 12 12 54446 -0.0707 0.2259 -0.28059 2007 12 13 54447 -0.0730 0.2277 -0.28117 2007 12 14 54448 -0.0753 0.2296 -0.28193 2007 12 15 54449 -0.0775 0.2314 -0.28292 2007 12 16 54450 -0.0798 0.2334 -0.28414 2007 12 17 54451 -0.0820 0.2353 -0.28554 2007 12 18 54452 -0.0841 0.2373 -0.28704 2007 12 19 54453 -0.0863 0.2393 -0.28852 2007 12 20 54454 -0.0884 0.2414 -0.28984 2007 12 21 54455 -0.0904 0.2434 -0.29091 2007 12 22 54456 -0.0925 0.2456 -0.29170 2007 12 23 54457 -0.0945 0.2477 -0.29227 2007 12 24 54458 -0.0964 0.2499 -0.29273 2007 12 25 54459 -0.0983 0.2521 -0.29322 2007 12 26 54460 -0.1002 0.2543 -0.29386 2007 12 27 54461 -0.1021 0.2566 -0.29470 2007 12 28 54462 -0.1039 0.2589 -0.29574 2007 12 29 54463 -0.1057 0.2612 -0.29689 2007 12 30 54464 -0.1074 0.2635 -0.29808 2007 12 31 54465 -0.1091 0.2659 -0.29923 2008 1 1 54466 -0.1108 0.2683 -0.30026 2008 1 2 54467 -0.1124 0.2707 -0.30113 2008 1 3 54468 -0.1140 0.2732 -0.30182 2008 1 4 54469 -0.1155 0.2757 -0.30233 2008 1 5 54470 -0.1170 0.2782 -0.30268 2008 1 6 54471 -0.1185 0.2807 -0.30294 2008 1 7 54472 -0.1199 0.2832 -0.30319 2008 1 8 54473 -0.1213 0.2858 -0.30352 2008 1 9 54474 -0.1226 0.2884 -0.30403 2008 1 10 54475 -0.1239 0.2910 -0.30481 2008 1 11 54476 -0.1252 0.2936 -0.30590 2008 1 12 54477 -0.1264 0.2963 -0.30731 2008 1 13 54478 -0.1275 0.2989 -0.30895 2008 1 14 54479 -0.1287 0.3016 -0.31073 2008 1 15 54480 -0.1297 0.3043 -0.31248 2008 1 16 54481 -0.1307 0.3070 -0.31408 2008 1 17 54482 -0.1317 0.3098 -0.31541 2008 1 18 54483 -0.1327 0.3125 -0.31643 2008 1 19 54484 -0.1336 0.3153 -0.31718 2008 1 20 54485 -0.1344 0.3180 -0.31775 2008 1 21 54486 -0.1352 0.3208 -0.31829 2008 1 22 54487 -0.1360 0.3236 -0.31894 2008 1 23 54488 -0.1367 0.3264 -0.31979 2008 1 24 54489 -0.1373 0.3293 -0.32086 2008 1 25 54490 -0.1379 0.3321 -0.32209 2008 1 26 54491 -0.1385 0.3349 -0.32342 2008 1 27 54492 -0.1390 0.3378 -0.32472 2008 1 28 54493 -0.1395 0.3407 -0.32595 2008 1 29 54494 -0.1399 0.3435 -0.32703 2008 1 30 54495 -0.1403 0.3464 -0.32794 2008 1 31 54496 -0.1406 0.3493 -0.32868 2008 2 1 54497 -0.1409 0.3522 -0.32924 2008 2 2 54498 -0.1411 0.3550 -0.32969 2008 2 3 54499 -0.1413 0.3579 -0.33009 2008 2 4 54500 -0.1414 0.3608 -0.33052 2008 2 5 54501 -0.1415 0.3637 -0.33110 2008 2 6 54502 -0.1415 0.3666 -0.33189 2008 2 7 54503 -0.1415 0.3695 -0.33295 2008 2 8 54504 -0.1415 0.3724 -0.33429 2008 2 9 54505 -0.1413 0.3753 -0.33584 2008 2 10 54506 -0.1412 0.3782 -0.33753 2008 2 11 54507 -0.1410 0.3811 -0.33921 2008 2 12 54508 -0.1407 0.3840 -0.34078 2008 2 13 54509 -0.1404 0.3869 -0.34209 2008 2 14 54510 -0.1401 0.3897 -0.34309 2008 2 15 54511 -0.1397 0.3926 -0.34383 2008 2 16 54512 -0.1392 0.3955 -0.34444 2008 2 17 54513 -0.1387 0.3984 -0.34499 2008 2 18 54514 -0.1382 0.4012 -0.34562 2008 2 19 54515 -0.1376 0.4040 -0.34645 2008 2 20 54516 -0.1369 0.4069 -0.34750 2008 2 21 54517 -0.1362 0.4097 -0.34875 2008 2 22 54518 -0.1355 0.4125 -0.35012 2008 2 23 54519 -0.1347 0.4153 -0.35151 2008 2 24 54520 -0.1339 0.4181 -0.35286 2008 2 25 54521 -0.1330 0.4209 -0.35414 2008 2 26 54522 -0.1321 0.4237 -0.35524 2008 2 27 54523 -0.1311 0.4264 -0.35611 2008 2 28 54524 -0.1301 0.4292 -0.35676 2008 2 29 54525 -0.1290 0.4319 -0.35722 2008 3 1 54526 -0.1279 0.4346 -0.35757 2008 3 2 54527 -0.1268 0.4373 -0.35791 2008 3 3 54528 -0.1256 0.4399 -0.35829 2008 3 4 54529 -0.1243 0.4426 -0.35892 2008 3 5 54530 -0.1230 0.4452 -0.35982 2008 3 6 54531 -0.1217 0.4478 -0.36104 2008 3 7 54532 -0.1203 0.4504 -0.36257 2008 3 8 54533 -0.1189 0.4530 -0.36424 2008 3 9 54534 -0.1174 0.4555 -0.36604 2008 3 10 54535 -0.1159 0.4581 -0.36778 2008 3 11 54536 -0.1143 0.4606 -0.36931 2008 3 12 54537 -0.1127 0.4630 -0.37058 2008 3 13 54538 -0.1111 0.4655 -0.37157 2008 3 14 54539 -0.1094 0.4679 -0.37244 2008 3 15 54540 -0.1077 0.4703 -0.37321 2008 3 16 54541 -0.1060 0.4727 -0.37402 2008 3 17 54542 -0.1042 0.4751 -0.37495 2008 3 18 54543 -0.1023 0.4774 -0.37604 2008 3 19 54544 -0.1004 0.4797 -0.37738 2008 3 20 54545 -0.0985 0.4819 -0.37890 2008 3 21 54546 -0.0966 0.4842 -0.38054 2008 3 22 54547 -0.0946 0.4864 -0.38222 2008 3 23 54548 -0.0925 0.4886 -0.38388 2008 3 24 54549 -0.0905 0.4907 -0.38538 2008 3 25 54550 -0.0884 0.4928 -0.38671 2008 3 26 54551 -0.0862 0.4949 -0.38786 2008 3 27 54552 -0.0840 0.4969 -0.38880 2008 3 28 54553 -0.0818 0.4989 -0.38960 2008 3 29 54554 -0.0796 0.5009 -0.39032 2008 3 30 54555 -0.0773 0.5029 -0.39106 2008 3 31 54556 -0.0750 0.5048 -0.39190 2008 4 1 54557 -0.0727 0.5066 -0.39293 2008 4 2 54558 -0.0703 0.5085 -0.39423 2008 4 3 54559 -0.0679 0.5103 -0.39582 2008 4 4 54560 -0.0654 0.5120 -0.39771 2008 4 5 54561 -0.0630 0.5138 -0.39980 2008 4 6 54562 -0.0605 0.5155 -0.40204 2008 4 7 54563 -0.0580 0.5171 -0.40419 2008 4 8 54564 -0.0554 0.5187 -0.40605 2008 4 9 54565 -0.0528 0.5203 -0.40762 2008 4 10 54566 -0.0502 0.5218 -0.40894 2008 4 11 54567 -0.0476 0.5233 -0.41013 2008 4 12 54568 -0.0449 0.5248 -0.41129 2008 4 13 54569 -0.0422 0.5262 -0.41250 2008 4 14 54570 -0.0395 0.5276 -0.41381 2008 4 15 54571 -0.0368 0.5289 -0.41531 2008 4 16 54572 -0.0341 0.5302 -0.41695 2008 4 17 54573 -0.0313 0.5314 -0.41868 2008 4 18 54574 -0.0285 0.5326 -0.42047 2008 4 19 54575 -0.0257 0.5338 -0.42211 2008 4 20 54576 -0.0228 0.5349 -0.42353 2008 4 21 54577 -0.0200 0.5359 -0.42477 2008 4 22 54578 -0.0171 0.5370 -0.42577 2008 4 23 54579 -0.0142 0.5380 -0.42655 2008 4 24 54580 -0.0113 0.5389 -0.42718 2008 4 25 54581 -0.0084 0.5398 -0.42771 2008 4 26 54582 -0.0055 0.5406 -0.42827 2008 4 27 54583 -0.0025 0.5414 -0.42889 2008 4 28 54584 0.0005 0.5422 -0.42963 2008 4 29 54585 0.0034 0.5429 -0.43059 2008 4 30 54586 0.0064 0.5436 -0.43178 2008 5 1 54587 0.0094 0.5442 -0.43319 2008 5 2 54588 0.0124 0.5448 -0.43481 2008 5 3 54589 0.0155 0.5453 -0.43655 2008 5 4 54590 0.0185 0.5458 -0.43825 2008 5 5 54591 0.0215 0.5462 -0.43979 2008 5 6 54592 0.0246 0.5466 -0.44095 2008 5 7 54593 0.0276 0.5469 -0.44179 2008 5 8 54594 0.0307 0.5472 -0.44243 2008 5 9 54595 0.0338 0.5475 -0.44302 2008 5 10 54596 0.0368 0.5477 -0.44368 2008 5 11 54597 0.0399 0.5478 -0.44450 2008 5 12 54598 0.0430 0.5479 -0.44548 2008 5 13 54599 0.0461 0.5480 -0.44661 2008 5 14 54600 0.0491 0.5480 -0.44782 2008 5 15 54601 0.0522 0.5480 -0.44898 2008 5 16 54602 0.0553 0.5479 -0.45004 2008 5 17 54603 0.0584 0.5478 -0.45097 2008 5 18 54604 0.0614 0.5476 -0.45169 2008 5 19 54605 0.0645 0.5474 -0.45227 2008 5 20 54606 0.0676 0.5471 -0.45268 2008 5 21 54607 0.0706 0.5468 -0.45292 2008 5 22 54608 0.0737 0.5464 -0.45306 2008 5 23 54609 0.0767 0.5460 -0.45315 2008 5 24 54610 0.0798 0.5455 -0.45332 2008 5 25 54611 0.0828 0.5450 -0.45363 2008 5 26 54612 0.0858 0.5445 -0.45412 2008 5 27 54613 0.0889 0.5439 -0.45480 2008 5 28 54614 0.0919 0.5432 -0.45570 2008 5 29 54615 0.0949 0.5425 -0.45676 2008 5 30 54616 0.0978 0.5418 -0.45788 2008 5 31 54617 0.1008 0.5410 -0.45902 2008 6 1 54618 0.1038 0.5402 -0.46005 2008 6 2 54619 0.1067 0.5393 -0.46084 2008 6 3 54620 0.1097 0.5384 -0.46131 2008 6 4 54621 0.1126 0.5374 -0.46152 2008 6 5 54622 0.1155 0.5364 -0.46162 2008 6 6 54623 0.1183 0.5353 -0.46178 2008 6 7 54624 0.1212 0.5342 -0.46208 2008 6 8 54625 0.1240 0.5331 -0.46257 2008 6 9 54626 0.1269 0.5319 -0.46323 2008 6 10 54627 0.1297 0.5307 -0.46399 2008 6 11 54628 0.1325 0.5294 -0.46478 2008 6 12 54629 0.1352 0.5281 -0.46551 2008 6 13 54630 0.1380 0.5267 -0.46614 2008 6 14 54631 0.1407 0.5253 -0.46661 2008 6 15 54632 0.1434 0.5239 -0.46685 2008 6 16 54633 0.1460 0.5224 -0.46687 2008 6 17 54634 0.1487 0.5208 -0.46674 2008 6 18 54635 0.1513 0.5193 -0.46647 2008 6 19 54636 0.1539 0.5177 -0.46612 2008 6 20 54637 0.1564 0.5160 -0.46577 2008 6 21 54638 0.1590 0.5143 -0.46551 2008 6 22 54639 0.1615 0.5126 -0.46544 2008 6 23 54640 0.1640 0.5109 -0.46562 2008 6 24 54641 0.1664 0.5091 -0.46601 2008 6 25 54642 0.1688 0.5072 -0.46661 2008 6 26 54643 0.1712 0.5053 -0.46731 2008 6 27 54644 0.1736 0.5034 -0.46807 2008 6 28 54645 0.1759 0.5015 -0.46882 2008 6 29 54646 0.1782 0.4995 -0.46942 2008 6 30 54647 0.1804 0.4975 -0.46978 2008 7 1 54648 0.1826 0.4954 -0.46989 2008 7 2 54649 0.1848 0.4933 -0.46982 2008 7 3 54650 0.1870 0.4912 -0.46973 2008 7 4 54651 0.1891 0.4890 -0.46977 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) 54267 -58.59 .74 -7.45 .20 54268 -58.22 .74 -7.44 .20 54269 -57.86 .74 -7.34 .20 54270 -57.85 .74 -7.12 .34 54271 -58.33 .18 -6.82 .34 54272 -59.06 .18 -6.61 .34 54273 -59.63 .18 -6.62 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54267 0.018 0.294 -0.466 0.200 54268 0.037 0.294 -0.482 0.200 54269 0.060 0.294 -0.495 0.200 54270 0.073 0.294 -0.491 0.340 54271 0.074 0.072 -0.440 0.340 54272 0.056 0.072 -0.369 0.340 54273 0.026 0.072 -0.344 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.