********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 28 January 2010 Vol. XXIII No. 004 ______________________________________________________________________ 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 10 1 22 55218 0.03358 .00009 0.19705 .00009 0.097398 0.000013 10 1 23 55219 0.03066 .00009 0.19714 .00009 0.096407 0.000010 10 1 24 55220 0.02810 .00009 0.19738 .00009 0.095504 0.000009 10 1 25 55221 0.02557 .00009 0.19794 .00009 0.094731 0.000009 10 1 26 55222 0.02301 .00009 0.19853 .00009 0.094102 0.000037 10 1 27 55223 0.02067 .00009 0.19923 .00009 0.093527 0.000048 10 1 28 55224 0.01889 .00009 0.20035 .00009 0.092921 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 = 0.0796 - 0.1249 cos A - 0.0305 sin A + 0.0629 cos C - 0.1089 sin C y = 0.3384 - 0.0293 cos A + 0.1118 sin A - 0.1089 cos C - 0.0629 sin C UT1-UTC = 0.0886 - 0.00089 (MJD - 55232) - (UT2-UT1) where A = 2*pi*(MJD-55224)/365.25 and C = 2*pi*(MJD-55224)/435. TAI-UTC(MJD 55225) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55224)**0.80 S t = 0.00025 (MJD-55224)**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) 2010 1 29 55225 0.0166 0.2014 0.09216 2010 1 30 55226 0.0146 0.2028 0.09110 2010 1 31 55227 0.0125 0.2041 0.08970 2010 2 1 55228 0.0103 0.2053 0.08804 2010 2 2 55229 0.0081 0.2065 0.08630 2010 2 3 55230 0.0059 0.2077 0.08468 2010 2 4 55231 0.0037 0.2089 0.08330 2010 2 5 55232 0.0015 0.2101 0.08219 2010 2 6 55233 -0.0006 0.2113 0.08134 2010 2 7 55234 -0.0027 0.2126 0.08065 2010 2 8 55235 -0.0048 0.2138 0.08005 2010 2 9 55236 -0.0069 0.2151 0.07953 2010 2 10 55237 -0.0089 0.2165 0.07901 2010 2 11 55238 -0.0109 0.2178 0.07839 2010 2 12 55239 -0.0129 0.2192 0.07764 2010 2 13 55240 -0.0149 0.2206 0.07676 2010 2 14 55241 -0.0168 0.2221 0.07573 2010 2 15 55242 -0.0187 0.2236 0.07459 2010 2 16 55243 -0.0206 0.2251 0.07337 2010 2 17 55244 -0.0225 0.2266 0.07212 2010 2 18 55245 -0.0243 0.2282 0.07091 2010 2 19 55246 -0.0261 0.2298 0.06976 2010 2 20 55247 -0.0278 0.2314 0.06873 2010 2 21 55248 -0.0296 0.2331 0.06784 2010 2 22 55249 -0.0313 0.2347 0.06708 2010 2 23 55250 -0.0329 0.2364 0.06640 2010 2 24 55251 -0.0346 0.2381 0.06571 2010 2 25 55252 -0.0362 0.2399 0.06489 2010 2 26 55253 -0.0377 0.2417 0.06381 2010 2 27 55254 -0.0393 0.2435 0.06241 2010 2 28 55255 -0.0408 0.2453 0.06071 2010 3 1 55256 -0.0422 0.2471 0.05881 2010 3 2 55257 -0.0437 0.2490 0.05687 2010 3 3 55258 -0.0451 0.2509 0.05505 2010 3 4 55259 -0.0464 0.2528 0.05347 2010 3 5 55260 -0.0478 0.2547 0.05216 2010 3 6 55261 -0.0491 0.2567 0.05111 2010 3 7 55262 -0.0503 0.2586 0.05024 2010 3 8 55263 -0.0515 0.2606 0.04946 2010 3 9 55264 -0.0527 0.2626 0.04869 2010 3 10 55265 -0.0539 0.2646 0.04787 2010 3 11 55266 -0.0550 0.2667 0.04694 2010 3 12 55267 -0.0561 0.2687 0.04588 2010 3 13 55268 -0.0571 0.2708 0.04466 2010 3 14 55269 -0.0581 0.2729 0.04331 2010 3 15 55270 -0.0591 0.2750 0.04186 2010 3 16 55271 -0.0600 0.2771 0.04038 2010 3 17 55272 -0.0609 0.2792 0.03891 2010 3 18 55273 -0.0617 0.2813 0.03752 2010 3 19 55274 -0.0625 0.2835 0.03626 2010 3 20 55275 -0.0633 0.2857 0.03516 2010 3 21 55276 -0.0640 0.2878 0.03420 2010 3 22 55277 -0.0647 0.2900 0.03336 2010 3 23 55278 -0.0654 0.2922 0.03253 2010 3 24 55279 -0.0660 0.2944 0.03163 2010 3 25 55280 -0.0666 0.2966 0.03055 2010 3 26 55281 -0.0671 0.2989 0.02923 2010 3 27 55282 -0.0676 0.3011 0.02763 2010 3 28 55283 -0.0681 0.3033 0.02581 2010 3 29 55284 -0.0685 0.3056 0.02390 2010 3 30 55285 -0.0689 0.3078 0.02203 2010 3 31 55286 -0.0692 0.3101 0.02035 2010 4 1 55287 -0.0696 0.3123 0.01894 2010 4 2 55288 -0.0698 0.3146 0.01779 2010 4 3 55289 -0.0700 0.3169 0.01686 2010 4 4 55290 -0.0702 0.3191 0.01607 2010 4 5 55291 -0.0704 0.3214 0.01533 2010 4 6 55292 -0.0705 0.3237 0.01456 2010 4 7 55293 -0.0706 0.3260 0.01371 2010 4 8 55294 -0.0706 0.3282 0.01274 2010 4 9 55295 -0.0706 0.3305 0.01163 2010 4 10 55296 -0.0705 0.3328 0.01039 2010 4 11 55297 -0.0705 0.3351 0.00905 2010 4 12 55298 -0.0703 0.3373 0.00765 2010 4 13 55299 -0.0702 0.3396 0.00626 2010 4 14 55300 -0.0700 0.3419 0.00492 2010 4 15 55301 -0.0697 0.3441 0.00369 2010 4 16 55302 -0.0695 0.3464 0.00261 2010 4 17 55303 -0.0692 0.3487 0.00168 2010 4 18 55304 -0.0688 0.3509 0.00087 2010 4 19 55305 -0.0684 0.3531 0.00012 2010 4 20 55306 -0.0680 0.3554 -0.00068 2010 4 21 55307 -0.0675 0.3576 -0.00160 2010 4 22 55308 -0.0670 0.3598 -0.00273 2010 4 23 55309 -0.0665 0.3620 -0.00410 2010 4 24 55310 -0.0659 0.3642 -0.00569 2010 4 25 55311 -0.0653 0.3664 -0.00739 2010 4 26 55312 -0.0647 0.3686 -0.00910 2010 4 27 55313 -0.0640 0.3708 -0.01069 2010 4 28 55314 -0.0633 0.3730 -0.01206 2010 4 29 55315 -0.0625 0.3751 -0.01317 2010 4 30 55316 -0.0617 0.3773 -0.01404 2010 5 1 55317 -0.0609 0.3794 -0.01473 2010 5 2 55318 -0.0600 0.3815 -0.01534 2010 5 3 55319 -0.0592 0.3836 -0.01595 2010 5 4 55320 -0.0582 0.3857 -0.01661 2010 5 5 55321 -0.0573 0.3878 -0.01737 2010 5 6 55322 -0.0563 0.3898 -0.01825 2010 5 7 55323 -0.0553 0.3919 -0.01925 2010 5 8 55324 -0.0542 0.3939 -0.02034 2010 5 9 55325 -0.0531 0.3959 -0.02150 2010 5 10 55326 -0.0520 0.3979 -0.02267 2010 5 11 55327 -0.0509 0.3998 -0.02379 2010 5 12 55328 -0.0497 0.4018 -0.02481 2010 5 13 55329 -0.0485 0.4037 -0.02570 2010 5 14 55330 -0.0472 0.4056 -0.02642 2010 5 15 55331 -0.0460 0.4075 -0.02700 2010 5 16 55332 -0.0447 0.4094 -0.02750 2010 5 17 55333 -0.0434 0.4113 -0.02797 2010 5 18 55334 -0.0420 0.4131 -0.02853 2010 5 19 55335 -0.0406 0.4149 -0.02927 2010 5 20 55336 -0.0392 0.4167 -0.03022 2010 5 21 55337 -0.0378 0.4185 -0.03135 2010 5 22 55338 -0.0363 0.4202 -0.03259 2010 5 23 55339 -0.0348 0.4219 -0.03383 2010 5 24 55340 -0.0333 0.4236 -0.03497 2010 5 25 55341 -0.0318 0.4253 -0.03592 2010 5 26 55342 -0.0302 0.4270 -0.03661 2010 5 27 55343 -0.0286 0.4286 -0.03707 2010 5 28 55344 -0.0270 0.4302 -0.03733 2010 5 29 55345 -0.0254 0.4318 -0.03747 2010 5 30 55346 -0.0237 0.4333 -0.03757 2010 5 31 55347 -0.0220 0.4349 -0.03771 2010 6 1 55348 -0.0203 0.4364 -0.03793 2010 6 2 55349 -0.0186 0.4378 -0.03825 2010 6 3 55350 -0.0168 0.4393 -0.03869 2010 6 4 55351 -0.0151 0.4407 -0.03922 2010 6 5 55352 -0.0133 0.4421 -0.03980 2010 6 6 55353 -0.0115 0.4434 -0.04041 2010 6 7 55354 -0.0096 0.4448 -0.04098 2010 6 8 55355 -0.0078 0.4461 -0.04146 2010 6 9 55356 -0.0059 0.4474 -0.04182 2010 6 10 55357 -0.0041 0.4486 -0.04202 2010 6 11 55358 -0.0022 0.4498 -0.04208 2010 6 12 55359 -0.0002 0.4510 -0.04203 2010 6 13 55360 0.0017 0.4522 -0.04197 2010 6 14 55361 0.0036 0.4533 -0.04198 2010 6 15 55362 0.0056 0.4544 -0.04217 2010 6 16 55363 0.0075 0.4555 -0.04258 2010 6 17 55364 0.0095 0.4565 -0.04320 2010 6 18 55365 0.0115 0.4576 -0.04394 2010 6 19 55366 0.0135 0.4585 -0.04471 2010 6 20 55367 0.0156 0.4595 -0.04537 2010 6 21 55368 0.0176 0.4604 -0.04584 2010 6 22 55369 0.0196 0.4613 -0.04609 2010 6 23 55370 0.0217 0.4621 -0.04610 2010 6 24 55371 0.0237 0.4630 -0.04591 2010 6 25 55372 0.0258 0.4638 -0.04560 2010 6 26 55373 0.0279 0.4645 -0.04524 2010 6 27 55374 0.0300 0.4652 -0.04490 2010 6 28 55375 0.0321 0.4659 -0.04465 2010 6 29 55376 0.0342 0.4666 -0.04451 2010 6 30 55377 0.0363 0.4672 -0.04449 2010 7 1 55378 0.0384 0.4678 -0.04457 2010 7 2 55379 0.0405 0.4684 -0.04473 2010 7 3 55380 0.0426 0.4689 -0.04493 2010 7 4 55381 0.0447 0.4694 -0.04511 2010 7 5 55382 0.0469 0.4699 -0.04523 2010 7 6 55383 0.0490 0.4703 -0.04524 2010 7 7 55384 0.0511 0.4707 -0.04513 2010 7 8 55385 0.0532 0.4711 -0.04488 2010 7 9 55386 0.0554 0.4714 -0.04452 2010 7 10 55387 0.0575 0.4717 -0.04413 2010 7 11 55388 0.0596 0.4720 -0.04380 2010 7 12 55389 0.0618 0.4723 -0.04364 2010 7 13 55390 0.0639 0.4725 -0.04372 2010 7 14 55391 0.0660 0.4726 -0.04405 2010 7 15 55392 0.0681 0.4728 -0.04457 2010 7 16 55393 0.0703 0.4729 -0.04517 2010 7 17 55394 0.0724 0.4730 -0.04569 2010 7 18 55395 0.0745 0.4730 -0.04603 2010 7 19 55396 0.0766 0.4730 -0.04612 2010 7 20 55397 0.0787 0.4730 -0.04596 2010 7 21 55398 0.0808 0.4730 -0.04560 2010 7 22 55399 0.0829 0.4729 -0.04510 2010 7 23 55400 0.0850 0.4728 -0.04454 2010 7 24 55401 0.0870 0.4726 -0.04399 2010 7 25 55402 0.0891 0.4724 -0.04351 2010 7 26 55403 0.0912 0.4722 -0.04313 2010 7 27 55404 0.0932 0.4720 -0.04288 2010 7 28 55405 0.0952 0.4717 -0.04273 2010 7 29 55406 0.0973 0.4714 -0.04267 2010 7 30 55407 0.0993 0.4711 -0.04264 2010 7 31 55408 0.1013 0.4707 -0.04259 2010 8 1 55409 0.1033 0.4703 -0.04247 2010 8 2 55410 0.1053 0.4699 -0.04226 2010 8 3 55411 0.1072 0.4694 -0.04191 2010 8 4 55412 0.1092 0.4689 -0.04143 2010 8 5 55413 0.1111 0.4684 -0.04086 2010 8 6 55414 0.1130 0.4679 -0.04025 2010 8 7 55415 0.1149 0.4673 -0.03972 2010 8 8 55416 0.1168 0.4667 -0.03938 2010 8 9 55417 0.1187 0.4661 -0.03935 2010 8 10 55418 0.1206 0.4654 -0.03968 2010 8 11 55419 0.1224 0.4647 -0.04033 2010 8 12 55420 0.1243 0.4640 -0.04119 2010 8 13 55421 0.1261 0.4633 -0.04210 2010 8 14 55422 0.1279 0.4625 -0.04289 2010 8 15 55423 0.1296 0.4617 -0.04348 2010 8 16 55424 0.1314 0.4609 -0.04381 2010 8 17 55425 0.1331 0.4600 -0.04392 2010 8 18 55426 0.1348 0.4591 -0.04389 2010 8 19 55427 0.1365 0.4582 -0.04380 2010 8 20 55428 0.1382 0.4573 -0.04371 2010 8 21 55429 0.1399 0.4563 -0.04368 2010 8 22 55430 0.1415 0.4554 -0.04377 2010 8 23 55431 0.1431 0.4544 -0.04398 2010 8 24 55432 0.1447 0.4533 -0.04433 2010 8 25 55433 0.1463 0.4523 -0.04478 2010 8 26 55434 0.1478 0.4512 -0.04531 2010 8 27 55435 0.1493 0.4501 -0.04587 2010 8 28 55436 0.1508 0.4490 -0.04639 2010 8 29 55437 0.1523 0.4478 -0.04682 2010 8 30 55438 0.1538 0.4467 -0.04713 2010 8 31 55439 0.1552 0.4455 -0.04732 2010 9 1 55440 0.1566 0.4443 -0.04740 2010 9 2 55441 0.1580 0.4430 -0.04743 2010 9 3 55442 0.1593 0.4418 -0.04747 2010 9 4 55443 0.1606 0.4405 -0.04762 2010 9 5 55444 0.1619 0.4392 -0.04800 2010 9 6 55445 0.1632 0.4379 -0.04866 2010 9 7 55446 0.1644 0.4366 -0.04963 2010 9 8 55447 0.1657 0.4353 -0.05086 2010 9 9 55448 0.1669 0.4339 -0.05222 2010 9 10 55449 0.1680 0.4325 -0.05352 2010 9 11 55450 0.1692 0.4311 -0.05459 2010 9 12 55451 0.1703 0.4297 -0.05539 2010 9 13 55452 0.1713 0.4283 -0.05594 2010 9 14 55453 0.1724 0.4268 -0.05632 2010 9 15 55454 0.1734 0.4253 -0.05658 2010 9 16 55455 0.1744 0.4239 -0.05681 2010 9 17 55456 0.1754 0.4224 -0.05710 2010 9 18 55457 0.1763 0.4209 -0.05750 2010 9 19 55458 0.1772 0.4193 -0.05808 2010 9 20 55459 0.1781 0.4178 -0.05891 2010 9 21 55460 0.1790 0.4163 -0.05993 2010 9 22 55461 0.1798 0.4147 -0.06112 2010 9 23 55462 0.1806 0.4131 -0.06239 2010 9 24 55463 0.1814 0.4116 -0.06368 2010 9 25 55464 0.1821 0.4100 -0.06491 2010 9 26 55465 0.1828 0.4084 -0.06607 2010 9 27 55466 0.1835 0.4067 -0.06713 2010 9 28 55467 0.1841 0.4051 -0.06805 2010 9 29 55468 0.1847 0.4035 -0.06889 2010 9 30 55469 0.1853 0.4019 -0.06974 2010 10 1 55470 0.1859 0.4002 -0.07070 2010 10 2 55471 0.1864 0.3985 -0.07181 2010 10 3 55472 0.1869 0.3969 -0.07311 2010 10 4 55473 0.1873 0.3952 -0.07468 2010 10 5 55474 0.1878 0.3935 -0.07650 2010 10 6 55475 0.1882 0.3919 -0.07847 2010 10 7 55476 0.1885 0.3902 -0.08048 2010 10 8 55477 0.1889 0.3885 -0.08235 2010 10 9 55478 0.1892 0.3868 -0.08402 2010 10 10 55479 0.1895 0.3851 -0.08542 2010 10 11 55480 0.1897 0.3834 -0.08659 2010 10 12 55481 0.1899 0.3817 -0.08760 2010 10 13 55482 0.1901 0.3800 -0.08857 2010 10 14 55483 0.1903 0.3782 -0.08957 2010 10 15 55484 0.1904 0.3765 -0.09062 2010 10 16 55485 0.1905 0.3748 -0.09177 2010 10 17 55486 0.1906 0.3731 -0.09305 2010 10 18 55487 0.1906 0.3714 -0.09447 2010 10 19 55488 0.1906 0.3697 -0.09601 2010 10 20 55489 0.1906 0.3680 -0.09762 2010 10 21 55490 0.1906 0.3663 -0.09918 2010 10 22 55491 0.1905 0.3645 -0.10064 2010 10 23 55492 0.1904 0.3628 -0.10202 2010 10 24 55493 0.1902 0.3611 -0.10325 2010 10 25 55494 0.1901 0.3594 -0.10431 2010 10 26 55495 0.1899 0.3577 -0.10519 2010 10 27 55496 0.1896 0.3560 -0.10596 2010 10 28 55497 0.1894 0.3543 -0.10676 2010 10 29 55498 0.1891 0.3527 -0.10770 2010 10 30 55499 0.1888 0.3510 -0.10883 2010 10 31 55500 0.1884 0.3493 -0.11016 2010 11 1 55501 0.1881 0.3476 -0.11173 2010 11 2 55502 0.1877 0.3460 -0.11346 2010 11 3 55503 0.1873 0.3443 -0.11525 2010 11 4 55504 0.1868 0.3427 -0.11697 2010 11 5 55505 0.1863 0.3410 -0.11853 2010 11 6 55506 0.1858 0.3394 -0.11992 2010 11 7 55507 0.1853 0.3378 -0.12111 2010 11 8 55508 0.1847 0.3362 -0.12212 2010 11 9 55509 0.1842 0.3346 -0.12304 2010 11 10 55510 0.1835 0.3330 -0.12394 2010 11 11 55511 0.1829 0.3314 -0.12486 2010 11 12 55512 0.1823 0.3298 -0.12586 2010 11 13 55513 0.1816 0.3282 -0.12698 2010 11 14 55514 0.1809 0.3267 -0.12823 2010 11 15 55515 0.1801 0.3251 -0.12956 2010 11 16 55516 0.1794 0.3236 -0.13093 2010 11 17 55517 0.1786 0.3221 -0.13228 2010 11 18 55518 0.1778 0.3206 -0.13356 2010 11 19 55519 0.1770 0.3191 -0.13472 2010 11 20 55520 0.1761 0.3176 -0.13577 2010 11 21 55521 0.1752 0.3162 -0.13671 2010 11 22 55522 0.1743 0.3147 -0.13751 2010 11 23 55523 0.1734 0.3133 -0.13818 2010 11 24 55524 0.1725 0.3119 -0.13880 2010 11 25 55525 0.1715 0.3105 -0.13949 2010 11 26 55526 0.1705 0.3091 -0.14033 2010 11 27 55527 0.1695 0.3077 -0.14140 2010 11 28 55528 0.1685 0.3064 -0.14263 2010 11 29 55529 0.1675 0.3050 -0.14398 2010 11 30 55530 0.1664 0.3037 -0.14539 2010 12 1 55531 0.1653 0.3024 -0.14680 2010 12 2 55532 0.1642 0.3011 -0.14810 2010 12 3 55533 0.1631 0.2999 -0.14920 2010 12 4 55534 0.1620 0.2986 -0.15002 2010 12 5 55535 0.1608 0.2974 -0.15062 2010 12 6 55536 0.1596 0.2962 -0.15106 2010 12 7 55537 0.1584 0.2950 -0.15136 2010 12 8 55538 0.1572 0.2938 -0.15160 2010 12 9 55539 0.1560 0.2926 -0.15188 2010 12 10 55540 0.1548 0.2915 -0.15234 2010 12 11 55541 0.1535 0.2904 -0.15295 2010 12 12 55542 0.1523 0.2893 -0.15366 2010 12 13 55543 0.1510 0.2882 -0.15443 2010 12 14 55544 0.1497 0.2871 -0.15521 2010 12 15 55545 0.1484 0.2861 -0.15595 2010 12 16 55546 0.1471 0.2851 -0.15663 2010 12 17 55547 0.1457 0.2841 -0.15724 2010 12 18 55548 0.1444 0.2831 -0.15771 2010 12 19 55549 0.1430 0.2822 -0.15808 2010 12 20 55550 0.1417 0.2812 -0.15842 2010 12 21 55551 0.1403 0.2803 -0.15875 2010 12 22 55552 0.1389 0.2794 -0.15913 2010 12 23 55553 0.1375 0.2786 -0.15962 2010 12 24 55554 0.1361 0.2777 -0.16024 2010 12 25 55555 0.1347 0.2769 -0.16107 2010 12 26 55556 0.1332 0.2761 -0.16206 2010 12 27 55557 0.1318 0.2753 -0.16315 2010 12 28 55558 0.1303 0.2746 -0.16424 2010 12 29 55559 0.1289 0.2739 -0.16522 2010 12 30 55560 0.1274 0.2731 -0.16600 2010 12 31 55561 0.1260 0.2725 -0.16655 2011 1 1 55562 0.1245 0.2718 -0.16692 2011 1 2 55563 0.1230 0.2712 -0.16716 2011 1 3 55564 0.1215 0.2705 -0.16734 2011 1 4 55565 0.1200 0.2700 -0.16755 2011 1 5 55566 0.1186 0.2694 -0.16780 2011 1 6 55567 0.1171 0.2688 -0.16816 2011 1 7 55568 0.1156 0.2683 -0.16868 2011 1 8 55569 0.1141 0.2678 -0.16932 2011 1 9 55570 0.1126 0.2674 -0.17006 2011 1 10 55571 0.1110 0.2669 -0.17088 2011 1 11 55572 0.1095 0.2665 -0.17163 2011 1 12 55573 0.1080 0.2661 -0.17224 2011 1 13 55574 0.1065 0.2657 -0.17268 2011 1 14 55575 0.1050 0.2653 -0.17293 2011 1 15 55576 0.1035 0.2650 -0.17304 2011 1 16 55577 0.1020 0.2647 -0.17300 2011 1 17 55578 0.1005 0.2644 -0.17289 2011 1 18 55579 0.0990 0.2641 -0.17279 2011 1 19 55580 0.0975 0.2639 -0.17280 2011 1 20 55581 0.0959 0.2637 -0.17300 2011 1 21 55582 0.0944 0.2635 -0.17351 2011 1 22 55583 0.0929 0.2633 -0.17430 2011 1 23 55584 0.0914 0.2632 -0.17525 2011 1 24 55585 0.0900 0.2631 -0.17624 2011 1 25 55586 0.0885 0.2630 -0.17711 2011 1 26 55587 0.0870 0.2629 -0.17776 2011 1 27 55588 0.0855 0.2628 -0.17814 2011 1 28 55589 0.0840 0.2628 -0.17831 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) 55205 -65.08 0.19 -5.22 0.34 55206 -65.20 0.16 -5.31 0.34 55207 -65.27 0.16 -5.42 0.34 55208 -65.26 0.14 -5.52 0.34 55209 -65.16 0.18 -5.61 0.34 55210 -64.97 0.18 -5.64 0.34 55211 -64.74 0.18 -5.50 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55205 -0.131 0.076 -0.264 0.340 55206 -0.126 0.064 -0.258 0.340 55207 -0.118 0.064 -0.258 0.340 55208 -0.114 0.056 -0.258 0.340 55209 -0.116 0.072 -0.254 0.340 55210 -0.108 0.072 -0.259 0.340 55211 -0.098 0.072 -0.249 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.