********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 24 December 2009 Vol. XXII No. 051 ______________________________________________________________________ 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 12 November 2009 at 0000 UTC Beginning 1 January 2009: TAI-UTC(BIPM) = 34.000 000 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 9 12 18 55183 0.12542 .00009 0.19402 .00009 0.126748 0.000010 9 12 19 55184 0.12339 .00009 0.19366 .00009 0.126012 0.000011 9 12 20 55185 0.12170 .00010 0.19360 .00009 0.125126 0.000012 9 12 21 55186 0.12001 .00009 0.19350 .00009 0.124068 0.000012 9 12 22 55187 0.11811 .00009 0.19322 .00009 0.122850 0.000037 9 12 23 55188 0.11602 .00009 0.19286 .00009 0.121541 0.000048 9 12 24 55189 0.11389 .00009 0.19252 .00009 0.120281 0.000057 _______________________________________________________________________ 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 = 0.0935 - 0.0730 cos A - 0.1017 sin A + 0.0922 cos C - 0.0667 sin C y = 0.3495 - 0.0920 cos A + 0.0602 sin A - 0.0667 cos C - 0.0922 sin C UT1-UTC = 0.1160 - 0.00089 (MJD - 55197) - (UT2-UT1) where A = 2*pi*(MJD-55189)/365.25 and C = 2*pi*(MJD-55189)/435. TAI-UTC(MJD 55190) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55189)**0.80 S t = 0.00025 (MJD-55189)**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) 2009 12 25 55190 0.1115 0.1921 0.11914 2009 12 26 55191 0.1091 0.1918 0.11809 2009 12 27 55192 0.1066 0.1915 0.11717 2009 12 28 55193 0.1042 0.1912 0.11643 2009 12 29 55194 0.1017 0.1909 0.11591 2009 12 30 55195 0.0992 0.1906 0.11556 2009 12 31 55196 0.0967 0.1903 0.11529 2010 1 1 55197 0.0941 0.1900 0.11494 2010 1 2 55198 0.0916 0.1898 0.11438 2010 1 3 55199 0.0890 0.1896 0.11351 2010 1 4 55200 0.0864 0.1895 0.11234 2010 1 5 55201 0.0838 0.1894 0.11098 2010 1 6 55202 0.0813 0.1893 0.10953 2010 1 7 55203 0.0787 0.1893 0.10814 2010 1 8 55204 0.0761 0.1893 0.10692 2010 1 9 55205 0.0735 0.1893 0.10592 2010 1 10 55206 0.0709 0.1894 0.10515 2010 1 11 55207 0.0684 0.1895 0.10459 2010 1 12 55208 0.0658 0.1897 0.10417 2010 1 13 55209 0.0633 0.1899 0.10382 2010 1 14 55210 0.0607 0.1901 0.10346 2010 1 15 55211 0.0582 0.1904 0.10303 2010 1 16 55212 0.0556 0.1907 0.10248 2010 1 17 55213 0.0531 0.1911 0.10179 2010 1 18 55214 0.0506 0.1915 0.10095 2010 1 19 55215 0.0481 0.1919 0.10000 2010 1 20 55216 0.0456 0.1924 0.09898 2010 1 21 55217 0.0431 0.1929 0.09794 2010 1 22 55218 0.0407 0.1934 0.09695 2010 1 23 55219 0.0382 0.1940 0.09606 2010 1 24 55220 0.0358 0.1947 0.09531 2010 1 25 55221 0.0334 0.1953 0.09472 2010 1 26 55222 0.0310 0.1960 0.09427 2010 1 27 55223 0.0286 0.1967 0.09389 2010 1 28 55224 0.0262 0.1975 0.09345 2010 1 29 55225 0.0239 0.1983 0.09285 2010 1 30 55226 0.0215 0.1992 0.09197 2010 1 31 55227 0.0192 0.2000 0.09081 2010 2 1 55228 0.0169 0.2009 0.08943 2010 2 2 55229 0.0146 0.2019 0.08797 2010 2 3 55230 0.0124 0.2029 0.08658 2010 2 4 55231 0.0102 0.2039 0.08539 2010 2 5 55232 0.0080 0.2049 0.08446 2010 2 6 55233 0.0058 0.2060 0.08377 2010 2 7 55234 0.0036 0.2071 0.08329 2010 2 8 55235 0.0015 0.2083 0.08293 2010 2 9 55236 -0.0007 0.2095 0.08263 2010 2 10 55237 -0.0027 0.2107 0.08232 2010 2 11 55238 -0.0048 0.2119 0.08193 2010 2 12 55239 -0.0069 0.2132 0.08141 2010 2 13 55240 -0.0089 0.2145 0.08073 2010 2 14 55241 -0.0109 0.2158 0.07990 2010 2 15 55242 -0.0128 0.2172 0.07892 2010 2 16 55243 -0.0148 0.2186 0.07784 2010 2 17 55244 -0.0167 0.2200 0.07672 2010 2 18 55245 -0.0186 0.2215 0.07562 2010 2 19 55246 -0.0204 0.2230 0.07460 2010 2 20 55247 -0.0222 0.2245 0.07368 2010 2 21 55248 -0.0240 0.2260 0.07289 2010 2 22 55249 -0.0258 0.2276 0.07222 2010 2 23 55250 -0.0275 0.2292 0.07162 2010 2 24 55251 -0.0292 0.2308 0.07099 2010 2 25 55252 -0.0309 0.2325 0.07022 2010 2 26 55253 -0.0325 0.2341 0.06921 2010 2 27 55254 -0.0342 0.2358 0.06790 2010 2 28 55255 -0.0357 0.2376 0.06630 2010 3 1 55256 -0.0373 0.2393 0.06451 2010 3 2 55257 -0.0388 0.2411 0.06270 2010 3 3 55258 -0.0403 0.2429 0.06100 2010 3 4 55259 -0.0417 0.2447 0.05954 2010 3 5 55260 -0.0431 0.2465 0.05835 2010 3 6 55261 -0.0445 0.2484 0.05738 2010 3 7 55262 -0.0458 0.2502 0.05659 2010 3 8 55263 -0.0471 0.2521 0.05587 2010 3 9 55264 -0.0484 0.2541 0.05516 2010 3 10 55265 -0.0497 0.2560 0.05438 2010 3 11 55266 -0.0509 0.2580 0.05350 2010 3 12 55267 -0.0520 0.2599 0.05246 2010 3 13 55268 -0.0532 0.2619 0.05128 2010 3 14 55269 -0.0543 0.2639 0.04995 2010 3 15 55270 -0.0553 0.2660 0.04850 2010 3 16 55271 -0.0563 0.2680 0.04700 2010 3 17 55272 -0.0573 0.2700 0.04551 2010 3 18 55273 -0.0583 0.2721 0.04407 2010 3 19 55274 -0.0592 0.2742 0.04275 2010 3 20 55275 -0.0601 0.2763 0.04156 2010 3 21 55276 -0.0609 0.2784 0.04049 2010 3 22 55277 -0.0617 0.2805 0.03952 2010 3 23 55278 -0.0625 0.2827 0.03857 2010 3 24 55279 -0.0632 0.2848 0.03753 2010 3 25 55280 -0.0639 0.2870 0.03631 2010 3 26 55281 -0.0645 0.2891 0.03483 2010 3 27 55282 -0.0651 0.2913 0.03308 2010 3 28 55283 -0.0657 0.2935 0.03111 2010 3 29 55284 -0.0663 0.2957 0.02903 2010 3 30 55285 -0.0667 0.2979 0.02701 2010 3 31 55286 -0.0672 0.3001 0.02517 2010 4 1 55287 -0.0676 0.3023 0.02358 2010 4 2 55288 -0.0680 0.3046 0.02227 2010 4 3 55289 -0.0684 0.3068 0.02117 2010 4 4 55290 -0.0687 0.3090 0.02020 2010 4 5 55291 -0.0689 0.3112 0.01928 2010 4 6 55292 -0.0692 0.3135 0.01834 2010 4 7 55293 -0.0694 0.3157 0.01731 2010 4 8 55294 -0.0695 0.3180 0.01616 2010 4 9 55295 -0.0696 0.3202 0.01488 2010 4 10 55296 -0.0697 0.3225 0.01346 2010 4 11 55297 -0.0698 0.3247 0.01193 2010 4 12 55298 -0.0698 0.3270 0.01042 2010 4 13 55299 -0.0697 0.3292 0.00890 2010 4 14 55300 -0.0696 0.3315 0.00744 2010 4 15 55301 -0.0695 0.3337 0.00608 2010 4 16 55302 -0.0694 0.3360 0.00488 2010 4 17 55303 -0.0692 0.3382 0.00382 2010 4 18 55304 -0.0690 0.3404 0.00289 2010 4 19 55305 -0.0687 0.3427 0.00201 2010 4 20 55306 -0.0684 0.3449 0.00109 2010 4 21 55307 -0.0681 0.3471 0.00004 2010 4 22 55308 -0.0677 0.3494 -0.00121 2010 4 23 55309 -0.0673 0.3516 -0.00269 2010 4 24 55310 -0.0669 0.3538 -0.00437 2010 4 25 55311 -0.0664 0.3560 -0.00618 2010 4 26 55312 -0.0659 0.3582 -0.00799 2010 4 27 55313 -0.0653 0.3604 -0.00967 2010 4 28 55314 -0.0648 0.3625 -0.01112 2010 4 29 55315 -0.0641 0.3647 -0.01231 2010 4 30 55316 -0.0635 0.3669 -0.01326 2010 5 1 55317 -0.0628 0.3690 -0.01404 2010 5 2 55318 -0.0621 0.3711 -0.01472 2010 5 3 55319 -0.0613 0.3733 -0.01540 2010 5 4 55320 -0.0605 0.3754 -0.01614 2010 5 5 55321 -0.0597 0.3775 -0.01697 2010 5 6 55322 -0.0588 0.3796 -0.01792 2010 5 7 55323 -0.0580 0.3816 -0.01898 2010 5 8 55324 -0.0570 0.3837 -0.02013 2010 5 9 55325 -0.0561 0.3857 -0.02135 2010 5 10 55326 -0.0551 0.3878 -0.02256 2010 5 11 55327 -0.0541 0.3898 -0.02373 2010 5 12 55328 -0.0530 0.3918 -0.02480 2010 5 13 55329 -0.0519 0.3937 -0.02572 2010 5 14 55330 -0.0508 0.3957 -0.02648 2010 5 15 55331 -0.0497 0.3977 -0.02710 2010 5 16 55332 -0.0485 0.3996 -0.02763 2010 5 17 55333 -0.0473 0.4015 -0.02817 2010 5 18 55334 -0.0461 0.4034 -0.02880 2010 5 19 55335 -0.0448 0.4053 -0.02961 2010 5 20 55336 -0.0436 0.4071 -0.03063 2010 5 21 55337 -0.0422 0.4089 -0.03183 2010 5 22 55338 -0.0409 0.4107 -0.03315 2010 5 23 55339 -0.0395 0.4125 -0.03447 2010 5 24 55340 -0.0381 0.4143 -0.03569 2010 5 25 55341 -0.0367 0.4161 -0.03671 2010 5 26 55342 -0.0353 0.4178 -0.03749 2010 5 27 55343 -0.0338 0.4195 -0.03803 2010 5 28 55344 -0.0323 0.4212 -0.03838 2010 5 29 55345 -0.0308 0.4228 -0.03861 2010 5 30 55346 -0.0293 0.4245 -0.03880 2010 5 31 55347 -0.0277 0.4261 -0.03903 2010 6 1 55348 -0.0261 0.4276 -0.03934 2010 6 2 55349 -0.0245 0.4292 -0.03976 2010 6 3 55350 -0.0229 0.4307 -0.04029 2010 6 4 55351 -0.0212 0.4322 -0.04092 2010 6 5 55352 -0.0195 0.4337 -0.04161 2010 6 6 55353 -0.0179 0.4352 -0.04232 2010 6 7 55354 -0.0161 0.4366 -0.04298 2010 6 8 55355 -0.0144 0.4380 -0.04357 2010 6 9 55356 -0.0127 0.4394 -0.04402 2010 6 10 55357 -0.0109 0.4408 -0.04433 2010 6 11 55358 -0.0091 0.4421 -0.04448 2010 6 12 55359 -0.0073 0.4434 -0.04453 2010 6 13 55360 -0.0055 0.4446 -0.04456 2010 6 14 55361 -0.0036 0.4459 -0.04466 2010 6 15 55362 -0.0018 0.4471 -0.04494 2010 6 16 55363 0.0001 0.4483 -0.04543 2010 6 17 55364 0.0020 0.4494 -0.04613 2010 6 18 55365 0.0039 0.4506 -0.04695 2010 6 19 55366 0.0058 0.4517 -0.04777 2010 6 20 55367 0.0077 0.4527 -0.04850 2010 6 21 55368 0.0096 0.4538 -0.04902 2010 6 22 55369 0.0116 0.4548 -0.04931 2010 6 23 55370 0.0135 0.4557 -0.04935 2010 6 24 55371 0.0155 0.4567 -0.04919 2010 6 25 55372 0.0175 0.4576 -0.04889 2010 6 26 55373 0.0195 0.4585 -0.04854 2010 6 27 55374 0.0215 0.4593 -0.04820 2010 6 28 55375 0.0235 0.4602 -0.04794 2010 6 29 55376 0.0255 0.4610 -0.04778 2010 6 30 55377 0.0275 0.4617 -0.04774 2010 7 1 55378 0.0295 0.4625 -0.04781 2010 7 2 55379 0.0316 0.4632 -0.04796 2010 7 3 55380 0.0336 0.4638 -0.04814 2010 7 4 55381 0.0357 0.4645 -0.04831 2010 7 5 55382 0.0377 0.4651 -0.04841 2010 7 6 55383 0.0398 0.4656 -0.04842 2010 7 7 55384 0.0418 0.4662 -0.04829 2010 7 8 55385 0.0439 0.4667 -0.04803 2010 7 9 55386 0.0459 0.4672 -0.04765 2010 7 10 55387 0.0480 0.4676 -0.04724 2010 7 11 55388 0.0501 0.4680 -0.04690 2010 7 12 55389 0.0521 0.4684 -0.04673 2010 7 13 55390 0.0542 0.4688 -0.04683 2010 7 14 55391 0.0563 0.4691 -0.04721 2010 7 15 55392 0.0583 0.4694 -0.04782 2010 7 16 55393 0.0604 0.4696 -0.04854 2010 7 17 55394 0.0625 0.4699 -0.04923 2010 7 18 55395 0.0645 0.4701 -0.04979 2010 7 19 55396 0.0666 0.4702 -0.05015 2010 7 20 55397 0.0686 0.4704 -0.05032 2010 7 21 55398 0.0707 0.4705 -0.05031 2010 7 22 55399 0.0727 0.4705 -0.05019 2010 7 23 55400 0.0748 0.4706 -0.05003 2010 7 24 55401 0.0768 0.4706 -0.04989 2010 7 25 55402 0.0788 0.4705 -0.04983 2010 7 26 55403 0.0808 0.4705 -0.04988 2010 7 27 55404 0.0828 0.4704 -0.05006 2010 7 28 55405 0.0848 0.4703 -0.05035 2010 7 29 55406 0.0868 0.4701 -0.05072 2010 7 30 55407 0.0888 0.4700 -0.05115 2010 7 31 55408 0.0908 0.4697 -0.05158 2010 8 1 55409 0.0928 0.4695 -0.05198 2010 8 2 55410 0.0947 0.4692 -0.05229 2010 8 3 55411 0.0967 0.4689 -0.05250 2010 8 4 55412 0.0986 0.4686 -0.05261 2010 8 5 55413 0.1005 0.4683 -0.05262 2010 8 6 55414 0.1025 0.4679 -0.05254 2010 8 7 55415 0.1043 0.4674 -0.05249 2010 8 8 55416 0.1062 0.4670 -0.05258 2010 8 9 55417 0.1081 0.4665 -0.05294 2010 8 10 55418 0.1100 0.4660 -0.05363 2010 8 11 55419 0.1118 0.4655 -0.05460 2010 8 12 55420 0.1136 0.4649 -0.05568 2010 8 13 55421 0.1154 0.4643 -0.05673 2010 8 14 55422 0.1172 0.4637 -0.05766 2010 8 15 55423 0.1190 0.4631 -0.05833 2010 8 16 55424 0.1208 0.4624 -0.05868 2010 8 17 55425 0.1225 0.4617 -0.05871 2010 8 18 55426 0.1243 0.4610 -0.05854 2010 8 19 55427 0.1260 0.4603 -0.05831 2010 8 20 55428 0.1277 0.4595 -0.05813 2010 8 21 55429 0.1293 0.4587 -0.05803 2010 8 22 55430 0.1310 0.4579 -0.05802 2010 8 23 55431 0.1326 0.4570 -0.05816 2010 8 24 55432 0.1342 0.4561 -0.05844 2010 8 25 55433 0.1358 0.4552 -0.05881 2010 8 26 55434 0.1374 0.4543 -0.05925 2010 8 27 55435 0.1390 0.4534 -0.05973 2010 8 28 55436 0.1405 0.4524 -0.06025 2010 8 29 55437 0.1420 0.4514 -0.06076 2010 8 30 55438 0.1435 0.4504 -0.06119 2010 8 31 55439 0.1450 0.4493 -0.06153 2010 9 1 55440 0.1464 0.4483 -0.06176 2010 9 2 55441 0.1478 0.4472 -0.06191 2010 9 3 55442 0.1492 0.4461 -0.06204 2010 9 4 55443 0.1506 0.4450 -0.06228 2010 9 5 55444 0.1520 0.4438 -0.06276 2010 9 6 55445 0.1533 0.4427 -0.06352 2010 9 7 55446 0.1546 0.4415 -0.06458 2010 9 8 55447 0.1559 0.4403 -0.06586 2010 9 9 55448 0.1571 0.4390 -0.06723 2010 9 10 55449 0.1583 0.4378 -0.06853 2010 9 11 55450 0.1596 0.4365 -0.06965 2010 9 12 55451 0.1607 0.4353 -0.07052 2010 9 13 55452 0.1619 0.4340 -0.07111 2010 9 14 55453 0.1630 0.4327 -0.07146 2010 9 15 55454 0.1641 0.4313 -0.07165 2010 9 16 55455 0.1652 0.4300 -0.07182 2010 9 17 55456 0.1662 0.4286 -0.07205 2010 9 18 55457 0.1672 0.4272 -0.07242 2010 9 19 55458 0.1682 0.4258 -0.07287 2010 9 20 55459 0.1692 0.4244 -0.07343 2010 9 21 55460 0.1701 0.4230 -0.07410 2010 9 22 55461 0.1711 0.4216 -0.07489 2010 9 23 55462 0.1719 0.4201 -0.07577 2010 9 24 55463 0.1728 0.4187 -0.07663 2010 9 25 55464 0.1736 0.4172 -0.07740 2010 9 26 55465 0.1744 0.4157 -0.07806 2010 9 27 55466 0.1752 0.4142 -0.07857 2010 9 28 55467 0.1759 0.4127 -0.07888 2010 9 29 55468 0.1767 0.4112 -0.07903 2010 9 30 55469 0.1773 0.4097 -0.07911 2010 10 1 55470 0.1780 0.4081 -0.07932 2010 10 2 55471 0.1786 0.4066 -0.07973 2010 10 3 55472 0.1792 0.4050 -0.08040 2010 10 4 55473 0.1798 0.4035 -0.08134 2010 10 5 55474 0.1803 0.4019 -0.08256 2010 10 6 55475 0.1809 0.4003 -0.08395 2010 10 7 55476 0.1814 0.3987 -0.08540 2010 10 8 55477 0.1818 0.3971 -0.08677 2010 10 9 55478 0.1822 0.3955 -0.08792 2010 10 10 55479 0.1826 0.3939 -0.08881 2010 10 11 55480 0.1830 0.3923 -0.08952 2010 10 12 55481 0.1834 0.3907 -0.09009 2010 10 13 55482 0.1837 0.3891 -0.09059 2010 10 14 55483 0.1840 0.3874 -0.09107 2010 10 15 55484 0.1842 0.3858 -0.09157 2010 10 16 55485 0.1844 0.3842 -0.09217 2010 10 17 55486 0.1846 0.3825 -0.09289 2010 10 18 55487 0.1848 0.3809 -0.09374 2010 10 19 55488 0.1850 0.3792 -0.09471 2010 10 20 55489 0.1851 0.3776 -0.09574 2010 10 21 55490 0.1852 0.3760 -0.09677 2010 10 22 55491 0.1852 0.3743 -0.09775 2010 10 23 55492 0.1853 0.3727 -0.09865 2010 10 24 55493 0.1853 0.3710 -0.09944 2010 10 25 55494 0.1852 0.3694 -0.10010 2010 10 26 55495 0.1852 0.3678 -0.10068 2010 10 27 55496 0.1851 0.3661 -0.10117 2010 10 28 55497 0.1850 0.3645 -0.10167 2010 10 29 55498 0.1849 0.3629 -0.10232 2010 10 30 55499 0.1847 0.3612 -0.10317 2010 10 31 55500 0.1845 0.3596 -0.10429 2010 11 1 55501 0.1843 0.3580 -0.10569 2010 11 2 55502 0.1841 0.3563 -0.10722 2010 11 3 55503 0.1838 0.3547 -0.10875 2010 11 4 55504 0.1835 0.3531 -0.11015 2010 11 5 55505 0.1832 0.3515 -0.11131 2010 11 6 55506 0.1828 0.3499 -0.11220 2010 11 7 55507 0.1825 0.3483 -0.11278 2010 11 8 55508 0.1821 0.3467 -0.11313 2010 11 9 55509 0.1816 0.3452 -0.11334 2010 11 10 55510 0.1812 0.3436 -0.11351 2010 11 11 55511 0.1807 0.3420 -0.11371 2010 11 12 55512 0.1802 0.3405 -0.11407 2010 11 13 55513 0.1797 0.3389 -0.11460 2010 11 14 55514 0.1791 0.3374 -0.11523 2010 11 15 55515 0.1786 0.3359 -0.11598 2010 11 16 55516 0.1780 0.3343 -0.11679 2010 11 17 55517 0.1774 0.3328 -0.11756 2010 11 18 55518 0.1767 0.3313 -0.11824 2010 11 19 55519 0.1761 0.3298 -0.11886 2010 11 20 55520 0.1754 0.3284 -0.11949 2010 11 21 55521 0.1747 0.3269 -0.12006 2010 11 22 55522 0.1739 0.3255 -0.12055 2010 11 23 55523 0.1732 0.3240 -0.12101 2010 11 24 55524 0.1724 0.3226 -0.12147 2010 11 25 55525 0.1716 0.3212 -0.12201 2010 11 26 55526 0.1708 0.3198 -0.12270 2010 11 27 55527 0.1700 0.3184 -0.12357 2010 11 28 55528 0.1691 0.3170 -0.12459 2010 11 29 55529 0.1683 0.3156 -0.12572 2010 11 30 55530 0.1674 0.3143 -0.12688 2010 12 1 55531 0.1664 0.3130 -0.12798 2010 12 2 55532 0.1655 0.3116 -0.12891 2010 12 3 55533 0.1646 0.3103 -0.12967 2010 12 4 55534 0.1636 0.3091 -0.13020 2010 12 5 55535 0.1626 0.3078 -0.13053 2010 12 6 55536 0.1616 0.3065 -0.13075 2010 12 7 55537 0.1606 0.3053 -0.13091 2010 12 8 55538 0.1596 0.3041 -0.13112 2010 12 9 55539 0.1585 0.3029 -0.13141 2010 12 10 55540 0.1574 0.3017 -0.13183 2010 12 11 55541 0.1564 0.3005 -0.13240 2010 12 12 55542 0.1553 0.2993 -0.13309 2010 12 13 55543 0.1541 0.2982 -0.13386 2010 12 14 55544 0.1530 0.2971 -0.13471 2010 12 15 55545 0.1519 0.2960 -0.13560 2010 12 16 55546 0.1507 0.2949 -0.13646 2010 12 17 55547 0.1496 0.2938 -0.13721 2010 12 18 55548 0.1484 0.2928 -0.13788 2010 12 19 55549 0.1472 0.2918 -0.13846 2010 12 20 55550 0.1460 0.2908 -0.13896 2010 12 21 55551 0.1448 0.2898 -0.13945 2010 12 22 55552 0.1435 0.2888 -0.13998 2010 12 23 55553 0.1423 0.2879 -0.14062 2010 12 24 55554 0.1410 0.2869 -0.14147 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) 55170 -65.36 0.45 -5.73 0.13 55171 -65.40 0.24 -5.72 0.34 55172 -65.52 0.24 -5.80 0.34 55173 -65.58 0.74 -5.92 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55170 -0.038 0.179 -0.322 0.130 55171 -0.028 0.095 -0.323 0.340 55172 -0.031 0.095 -0.311 0.340 55173 -0.046 0.294 -0.301 0.340 The recommended software to predict celestial pole offsets can be found at and software for the calculation of the dX and dY components with respect to IAU2000A Nutation/Precession Theory can be found at the web site in Chapter 5 Section 5.5 of the IERS Conventions.