********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 25 March 2010 Vol. XXIII No. 012 ______________________________________________________________________ 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 = +0.0 seconds beginning 11 March 2010 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 3 19 55274 -.05387 .00009 0.29115 .00009 0.031492 0.000019 10 3 20 55275 -.05434 .00009 0.29250 .00009 0.030565 0.000019 10 3 21 55276 -.05446 .00010 0.29413 .00009 0.029803 0.000019 10 3 22 55277 -.05447 .00009 0.29607 .00009 0.029195 0.000019 10 3 23 55278 -.05465 .00009 0.29829 .00009 0.028653 0.000020 10 3 24 55279 -.05514 .00009 0.30083 .00009 0.028053 0.000065 10 3 25 55280 -.05599 .00009 0.30363 .00009 0.027245 0.000055 _______________________________________________________________________ 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 = 0.0891 - 0.1072 cos A + 0.0716 sin A - 0.0348 cos C - 0.1039 sin C y = 0.3454 + 0.0638 cos A + 0.0965 sin A - 0.1039 cos C + 0.0348 sin C UT1-UTC = 0.0441 - 0.00088 (MJD - 55288) - (UT2-UT1) where A = 2*pi*(MJD-55280)/365.25 and C = 2*pi*(MJD-55280)/435. TAI-UTC(MJD 55281) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55280)**0.80 S t = 0.00025 (MJD-55280)**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 3 26 55281 -0.0567 0.3060 0.02607 2010 3 27 55282 -0.0576 0.3084 0.02455 2010 3 28 55283 -0.0583 0.3107 0.02277 2010 3 29 55284 -0.0588 0.3130 0.02087 2010 3 30 55285 -0.0593 0.3152 0.01901 2010 3 31 55286 -0.0596 0.3174 0.01731 2010 4 1 55287 -0.0599 0.3196 0.01587 2010 4 2 55288 -0.0601 0.3218 0.01469 2010 4 3 55289 -0.0602 0.3240 0.01374 2010 4 4 55290 -0.0604 0.3262 0.01292 2010 4 5 55291 -0.0605 0.3284 0.01218 2010 4 6 55292 -0.0605 0.3306 0.01144 2010 4 7 55293 -0.0605 0.3328 0.01070 2010 4 8 55294 -0.0605 0.3350 0.00988 2010 4 9 55295 -0.0604 0.3372 0.00894 2010 4 10 55296 -0.0603 0.3394 0.00785 2010 4 11 55297 -0.0602 0.3416 0.00667 2010 4 12 55298 -0.0600 0.3438 0.00543 2010 4 13 55299 -0.0598 0.3460 0.00417 2010 4 14 55300 -0.0595 0.3482 0.00293 2010 4 15 55301 -0.0592 0.3504 0.00177 2010 4 16 55302 -0.0589 0.3526 0.00072 2010 4 17 55303 -0.0585 0.3547 -0.00020 2010 4 18 55304 -0.0581 0.3569 -0.00103 2010 4 19 55305 -0.0577 0.3591 -0.00183 2010 4 20 55306 -0.0572 0.3612 -0.00269 2010 4 21 55307 -0.0567 0.3634 -0.00369 2010 4 22 55308 -0.0562 0.3655 -0.00493 2010 4 23 55309 -0.0556 0.3676 -0.00643 2010 4 24 55310 -0.0550 0.3697 -0.00816 2010 4 25 55311 -0.0543 0.3718 -0.01002 2010 4 26 55312 -0.0536 0.3739 -0.01188 2010 4 27 55313 -0.0529 0.3760 -0.01361 2010 4 28 55314 -0.0521 0.3781 -0.01511 2010 4 29 55315 -0.0514 0.3801 -0.01636 2010 4 30 55316 -0.0505 0.3822 -0.01737 2010 5 1 55317 -0.0497 0.3842 -0.01823 2010 5 2 55318 -0.0488 0.3862 -0.01900 2010 5 3 55319 -0.0479 0.3882 -0.01977 2010 5 4 55320 -0.0469 0.3902 -0.02059 2010 5 5 55321 -0.0459 0.3921 -0.02150 2010 5 6 55322 -0.0449 0.3941 -0.02252 2010 5 7 55323 -0.0439 0.3960 -0.02365 2010 5 8 55324 -0.0428 0.3979 -0.02486 2010 5 9 55325 -0.0417 0.3998 -0.02612 2010 5 10 55326 -0.0405 0.4017 -0.02739 2010 5 11 55327 -0.0394 0.4036 -0.02859 2010 5 12 55328 -0.0382 0.4054 -0.02968 2010 5 13 55329 -0.0369 0.4072 -0.03062 2010 5 14 55330 -0.0357 0.4090 -0.03140 2010 5 15 55331 -0.0344 0.4108 -0.03202 2010 5 16 55332 -0.0331 0.4126 -0.03256 2010 5 17 55333 -0.0318 0.4143 -0.03309 2010 5 18 55334 -0.0304 0.4160 -0.03371 2010 5 19 55335 -0.0290 0.4177 -0.03450 2010 5 20 55336 -0.0276 0.4194 -0.03549 2010 5 21 55337 -0.0261 0.4211 -0.03667 2010 5 22 55338 -0.0247 0.4227 -0.03796 2010 5 23 55339 -0.0232 0.4243 -0.03927 2010 5 24 55340 -0.0217 0.4259 -0.04048 2010 5 25 55341 -0.0201 0.4274 -0.04151 2010 5 26 55342 -0.0185 0.4290 -0.04229 2010 5 27 55343 -0.0170 0.4305 -0.04283 2010 5 28 55344 -0.0153 0.4319 -0.04317 2010 5 29 55345 -0.0137 0.4334 -0.04338 2010 5 30 55346 -0.0121 0.4348 -0.04355 2010 5 31 55347 -0.0104 0.4362 -0.04375 2010 6 1 55348 -0.0087 0.4376 -0.04403 2010 6 2 55349 -0.0070 0.4389 -0.04441 2010 6 3 55350 -0.0052 0.4403 -0.04490 2010 6 4 55351 -0.0035 0.4416 -0.04547 2010 6 5 55352 -0.0017 0.4428 -0.04611 2010 6 6 55353 0.0001 0.4441 -0.04676 2010 6 7 55354 0.0019 0.4453 -0.04737 2010 6 8 55355 0.0037 0.4464 -0.04789 2010 6 9 55356 0.0055 0.4476 -0.04827 2010 6 10 55357 0.0074 0.4487 -0.04849 2010 6 11 55358 0.0093 0.4498 -0.04856 2010 6 12 55359 0.0111 0.4509 -0.04851 2010 6 13 55360 0.0130 0.4519 -0.04842 2010 6 14 55361 0.0150 0.4529 -0.04841 2010 6 15 55362 0.0169 0.4539 -0.04857 2010 6 16 55363 0.0188 0.4548 -0.04894 2010 6 17 55364 0.0208 0.4557 -0.04951 2010 6 18 55365 0.0227 0.4566 -0.05021 2010 6 19 55366 0.0247 0.4575 -0.05091 2010 6 20 55367 0.0267 0.4583 -0.05151 2010 6 21 55368 0.0287 0.4591 -0.05192 2010 6 22 55369 0.0307 0.4598 -0.05209 2010 6 23 55370 0.0327 0.4606 -0.05202 2010 6 24 55371 0.0347 0.4613 -0.05175 2010 6 25 55372 0.0367 0.4619 -0.05136 2010 6 26 55373 0.0387 0.4625 -0.05090 2010 6 27 55374 0.0408 0.4631 -0.05047 2010 6 28 55375 0.0428 0.4637 -0.05011 2010 6 29 55376 0.0449 0.4642 -0.04987 2010 6 30 55377 0.0469 0.4647 -0.04975 2010 7 1 55378 0.0490 0.4652 -0.04973 2010 7 2 55379 0.0510 0.4657 -0.04979 2010 7 3 55380 0.0531 0.4661 -0.04989 2010 7 4 55381 0.0551 0.4664 -0.04998 2010 7 5 55382 0.0572 0.4668 -0.05000 2010 7 6 55383 0.0593 0.4671 -0.04992 2010 7 7 55384 0.0613 0.4674 -0.04971 2010 7 8 55385 0.0634 0.4676 -0.04936 2010 7 9 55386 0.0655 0.4678 -0.04891 2010 7 10 55387 0.0675 0.4680 -0.04842 2010 7 11 55388 0.0696 0.4681 -0.04799 2010 7 12 55389 0.0716 0.4682 -0.04774 2010 7 13 55390 0.0737 0.4683 -0.04774 2010 7 14 55391 0.0757 0.4684 -0.04800 2010 7 15 55392 0.0778 0.4684 -0.04844 2010 7 16 55393 0.0798 0.4684 -0.04895 2010 7 17 55394 0.0819 0.4683 -0.04940 2010 7 18 55395 0.0839 0.4683 -0.04966 2010 7 19 55396 0.0859 0.4681 -0.04968 2010 7 20 55397 0.0879 0.4680 -0.04946 2010 7 21 55398 0.0900 0.4678 -0.04905 2010 7 22 55399 0.0920 0.4676 -0.04850 2010 7 23 55400 0.0940 0.4674 -0.04791 2010 7 24 55401 0.0959 0.4671 -0.04734 2010 7 25 55402 0.0979 0.4668 -0.04684 2010 7 26 55403 0.0999 0.4665 -0.04648 2010 7 27 55404 0.1018 0.4662 -0.04625 2010 7 28 55405 0.1038 0.4658 -0.04615 2010 7 29 55406 0.1057 0.4654 -0.04616 2010 7 30 55407 0.1076 0.4649 -0.04622 2010 7 31 55408 0.1095 0.4644 -0.04630 2010 8 1 55409 0.1114 0.4639 -0.04634 2010 8 2 55410 0.1133 0.4634 -0.04631 2010 8 3 55411 0.1152 0.4628 -0.04616 2010 8 4 55412 0.1170 0.4622 -0.04591 2010 8 5 55413 0.1189 0.4616 -0.04555 2010 8 6 55414 0.1207 0.4610 -0.04514 2010 8 7 55415 0.1225 0.4603 -0.04478 2010 8 8 55416 0.1243 0.4596 -0.04455 2010 8 9 55417 0.1261 0.4589 -0.04457 2010 8 10 55418 0.1278 0.4581 -0.04488 2010 8 11 55419 0.1296 0.4573 -0.04545 2010 8 12 55420 0.1313 0.4565 -0.04619 2010 8 13 55421 0.1330 0.4557 -0.04694 2010 8 14 55422 0.1347 0.4548 -0.04755 2010 8 15 55423 0.1363 0.4539 -0.04794 2010 8 16 55424 0.1380 0.4530 -0.04806 2010 8 17 55425 0.1396 0.4521 -0.04795 2010 8 18 55426 0.1412 0.4511 -0.04770 2010 8 19 55427 0.1428 0.4501 -0.04738 2010 8 20 55428 0.1444 0.4491 -0.04707 2010 8 21 55429 0.1459 0.4481 -0.04685 2010 8 22 55430 0.1474 0.4470 -0.04674 2010 8 23 55431 0.1489 0.4459 -0.04678 2010 8 24 55432 0.1504 0.4448 -0.04696 2010 8 25 55433 0.1518 0.4437 -0.04726 2010 8 26 55434 0.1533 0.4425 -0.04764 2010 8 27 55435 0.1547 0.4414 -0.04805 2010 8 28 55436 0.1560 0.4402 -0.04845 2010 8 29 55437 0.1574 0.4390 -0.04879 2010 8 30 55438 0.1587 0.4377 -0.04903 2010 8 31 55439 0.1600 0.4365 -0.04917 2010 9 1 55440 0.1613 0.4352 -0.04921 2010 9 2 55441 0.1626 0.4339 -0.04920 2010 9 3 55442 0.1638 0.4326 -0.04919 2010 9 4 55443 0.1650 0.4313 -0.04929 2010 9 5 55444 0.1662 0.4300 -0.04960 2010 9 6 55445 0.1673 0.4286 -0.05018 2010 9 7 55446 0.1684 0.4272 -0.05107 2010 9 8 55447 0.1695 0.4258 -0.05219 2010 9 9 55448 0.1706 0.4244 -0.05343 2010 9 10 55449 0.1716 0.4230 -0.05461 2010 9 11 55450 0.1727 0.4215 -0.05561 2010 9 12 55451 0.1736 0.4201 -0.05634 2010 9 13 55452 0.1746 0.4186 -0.05682 2010 9 14 55453 0.1755 0.4171 -0.05709 2010 9 15 55454 0.1764 0.4156 -0.05727 2010 9 16 55455 0.1773 0.4141 -0.05743 2010 9 17 55456 0.1781 0.4126 -0.05764 2010 9 18 55457 0.1790 0.4110 -0.05795 2010 9 19 55458 0.1797 0.4095 -0.05839 2010 9 20 55459 0.1805 0.4079 -0.05896 2010 9 21 55460 0.1812 0.4064 -0.05964 2010 9 22 55461 0.1819 0.4048 -0.06040 2010 9 23 55462 0.1826 0.4032 -0.06118 2010 9 24 55463 0.1832 0.4016 -0.06193 2010 9 25 55464 0.1838 0.4000 -0.06259 2010 9 26 55465 0.1844 0.3984 -0.06312 2010 9 27 55466 0.1849 0.3967 -0.06351 2010 9 28 55467 0.1855 0.3951 -0.06374 2010 9 29 55468 0.1860 0.3935 -0.06385 2010 9 30 55469 0.1864 0.3918 -0.06390 2010 10 1 55470 0.1868 0.3902 -0.06397 2010 10 2 55471 0.1872 0.3885 -0.06419 2010 10 3 55472 0.1876 0.3869 -0.06463 2010 10 4 55473 0.1879 0.3852 -0.06538 2010 10 5 55474 0.1882 0.3835 -0.06642 2010 10 6 55475 0.1885 0.3818 -0.06769 2010 10 7 55476 0.1888 0.3802 -0.06904 2010 10 8 55477 0.1890 0.3785 -0.07034 2010 10 9 55478 0.1892 0.3768 -0.07146 2010 10 10 55479 0.1893 0.3751 -0.07235 2010 10 11 55480 0.1895 0.3734 -0.07303 2010 10 12 55481 0.1896 0.3718 -0.07359 2010 10 13 55482 0.1896 0.3701 -0.07412 2010 10 14 55483 0.1897 0.3684 -0.07468 2010 10 15 55484 0.1897 0.3667 -0.07533 2010 10 16 55485 0.1896 0.3650 -0.07611 2010 10 17 55486 0.1896 0.3633 -0.07702 2010 10 18 55487 0.1895 0.3616 -0.07805 2010 10 19 55488 0.1894 0.3600 -0.07919 2010 10 20 55489 0.1893 0.3583 -0.08038 2010 10 21 55490 0.1891 0.3566 -0.08159 2010 10 22 55491 0.1889 0.3550 -0.08276 2010 10 23 55492 0.1887 0.3533 -0.08386 2010 10 24 55493 0.1884 0.3516 -0.08485 2010 10 25 55494 0.1881 0.3500 -0.08575 2010 10 26 55495 0.1878 0.3483 -0.08656 2010 10 27 55496 0.1875 0.3467 -0.08736 2010 10 28 55497 0.1871 0.3450 -0.08819 2010 10 29 55498 0.1867 0.3434 -0.08913 2010 10 30 55499 0.1863 0.3418 -0.09025 2010 10 31 55500 0.1859 0.3402 -0.09160 2010 11 1 55501 0.1854 0.3386 -0.09318 2010 11 2 55502 0.1849 0.3370 -0.09495 2010 11 3 55503 0.1844 0.3354 -0.09684 2010 11 4 55504 0.1838 0.3338 -0.09870 2010 11 5 55505 0.1832 0.3322 -0.10042 2010 11 6 55506 0.1826 0.3307 -0.10188 2010 11 7 55507 0.1820 0.3291 -0.10305 2010 11 8 55508 0.1813 0.3276 -0.10400 2010 11 9 55509 0.1806 0.3261 -0.10484 2010 11 10 55510 0.1799 0.3246 -0.10563 2010 11 11 55511 0.1792 0.3231 -0.10646 2010 11 12 55512 0.1784 0.3216 -0.10739 2010 11 13 55513 0.1777 0.3201 -0.10843 2010 11 14 55514 0.1768 0.3186 -0.10958 2010 11 15 55515 0.1760 0.3172 -0.11082 2010 11 16 55516 0.1752 0.3157 -0.11210 2010 11 17 55517 0.1743 0.3143 -0.11339 2010 11 18 55518 0.1734 0.3129 -0.11467 2010 11 19 55519 0.1725 0.3115 -0.11589 2010 11 20 55520 0.1715 0.3101 -0.11702 2010 11 21 55521 0.1706 0.3088 -0.11808 2010 11 22 55522 0.1696 0.3074 -0.11904 2010 11 23 55523 0.1686 0.3061 -0.11995 2010 11 24 55524 0.1676 0.3048 -0.12086 2010 11 25 55525 0.1665 0.3035 -0.12181 2010 11 26 55526 0.1655 0.3022 -0.12291 2010 11 27 55527 0.1644 0.3010 -0.12422 2010 11 28 55528 0.1633 0.2997 -0.12568 2010 11 29 55529 0.1622 0.2985 -0.12730 2010 11 30 55530 0.1610 0.2973 -0.12903 2010 12 1 55531 0.1599 0.2961 -0.13072 2010 12 2 55532 0.1587 0.2949 -0.13224 2010 12 3 55533 0.1575 0.2938 -0.13358 2010 12 4 55534 0.1563 0.2927 -0.13472 2010 12 5 55535 0.1551 0.2916 -0.13568 2010 12 6 55536 0.1539 0.2905 -0.13652 2010 12 7 55537 0.1526 0.2894 -0.13732 2010 12 8 55538 0.1513 0.2884 -0.13809 2010 12 9 55539 0.1501 0.2873 -0.13889 2010 12 10 55540 0.1488 0.2863 -0.13975 2010 12 11 55541 0.1475 0.2853 -0.14068 2010 12 12 55542 0.1461 0.2844 -0.14171 2010 12 13 55543 0.1448 0.2834 -0.14286 2010 12 14 55544 0.1434 0.2825 -0.14406 2010 12 15 55545 0.1421 0.2816 -0.14524 2010 12 16 55546 0.1407 0.2807 -0.14631 2010 12 17 55547 0.1393 0.2799 -0.14722 2010 12 18 55548 0.1379 0.2790 -0.14794 2010 12 19 55549 0.1365 0.2782 -0.14853 2010 12 20 55550 0.1351 0.2774 -0.14902 2010 12 21 55551 0.1337 0.2767 -0.14947 2010 12 22 55552 0.1323 0.2759 -0.15000 2010 12 23 55553 0.1308 0.2752 -0.15069 2010 12 24 55554 0.1294 0.2745 -0.15156 2010 12 25 55555 0.1279 0.2739 -0.15269 2010 12 26 55556 0.1265 0.2732 -0.15400 2010 12 27 55557 0.1250 0.2726 -0.15538 2010 12 28 55558 0.1235 0.2720 -0.15676 2010 12 29 55559 0.1220 0.2714 -0.15801 2010 12 30 55560 0.1206 0.2708 -0.15909 2010 12 31 55561 0.1191 0.2703 -0.15993 2011 1 1 55562 0.1176 0.2698 -0.16054 2011 1 2 55563 0.1161 0.2693 -0.16099 2011 1 3 55564 0.1146 0.2689 -0.16139 2011 1 4 55565 0.1131 0.2684 -0.16183 2011 1 5 55566 0.1116 0.2680 -0.16234 2011 1 6 55567 0.1101 0.2676 -0.16295 2011 1 7 55568 0.1085 0.2673 -0.16368 2011 1 8 55569 0.1070 0.2669 -0.16452 2011 1 9 55570 0.1055 0.2666 -0.16546 2011 1 10 55571 0.1040 0.2663 -0.16652 2011 1 11 55572 0.1025 0.2661 -0.16764 2011 1 12 55573 0.1010 0.2658 -0.16877 2011 1 13 55574 0.0995 0.2656 -0.16984 2011 1 14 55575 0.0979 0.2654 -0.17083 2011 1 15 55576 0.0964 0.2652 -0.17171 2011 1 16 55577 0.0949 0.2651 -0.17252 2011 1 17 55578 0.0934 0.2650 -0.17329 2011 1 18 55579 0.0919 0.2649 -0.17408 2011 1 19 55580 0.0904 0.2648 -0.17500 2011 1 20 55581 0.0889 0.2647 -0.17618 2011 1 21 55582 0.0874 0.2647 -0.17765 2011 1 22 55583 0.0860 0.2647 -0.17934 2011 1 23 55584 0.0845 0.2647 -0.18113 2011 1 24 55585 0.0830 0.2647 -0.18292 2011 1 25 55586 0.0815 0.2648 -0.18458 2011 1 26 55587 0.0801 0.2649 -0.18602 2011 1 27 55588 0.0786 0.2650 -0.18722 2011 1 28 55589 0.0772 0.2651 -0.18818 2011 1 29 55590 0.0757 0.2653 -0.18902 2011 1 30 55591 0.0743 0.2655 -0.18977 2011 1 31 55592 0.0729 0.2657 -0.19053 2011 2 1 55593 0.0715 0.2659 -0.19137 2011 2 2 55594 0.0700 0.2661 -0.19234 2011 2 3 55595 0.0687 0.2664 -0.19345 2011 2 4 55596 0.0673 0.2667 -0.19464 2011 2 5 55597 0.0659 0.2670 -0.19590 2011 2 6 55598 0.0645 0.2673 -0.19721 2011 2 7 55599 0.0632 0.2677 -0.19855 2011 2 8 55600 0.0618 0.2681 -0.19989 2011 2 9 55601 0.0605 0.2685 -0.20115 2011 2 10 55602 0.0592 0.2689 -0.20228 2011 2 11 55603 0.0579 0.2693 -0.20325 2011 2 12 55604 0.0566 0.2698 -0.20414 2011 2 13 55605 0.0553 0.2702 -0.20497 2011 2 14 55606 0.0540 0.2707 -0.20574 2011 2 15 55607 0.0528 0.2713 -0.20654 2011 2 16 55608 0.0515 0.2718 -0.20748 2011 2 17 55609 0.0503 0.2724 -0.20870 2011 2 18 55610 0.0491 0.2729 -0.21022 2011 2 19 55611 0.0479 0.2735 -0.21195 2011 2 20 55612 0.0467 0.2741 -0.21376 2011 2 21 55613 0.0455 0.2748 -0.21552 2011 2 22 55614 0.0444 0.2754 -0.21708 2011 2 23 55615 0.0432 0.2761 -0.21838 2011 2 24 55616 0.0421 0.2767 -0.21942 2011 2 25 55617 0.0410 0.2774 -0.22027 2011 2 26 55618 0.0399 0.2782 -0.22108 2011 2 27 55619 0.0389 0.2789 -0.22194 2011 2 28 55620 0.0378 0.2796 -0.22285 2011 3 1 55621 0.0368 0.2804 -0.22388 2011 3 2 55622 0.0358 0.2812 -0.22503 2011 3 3 55623 0.0348 0.2820 -0.22627 2011 3 4 55624 0.0338 0.2828 -0.22760 2011 3 5 55625 0.0328 0.2836 -0.22899 2011 3 6 55626 0.0319 0.2845 -0.23042 2011 3 7 55627 0.0310 0.2853 -0.23182 2011 3 8 55628 0.0301 0.2862 -0.23314 2011 3 9 55629 0.0292 0.2871 -0.23434 2011 3 10 55630 0.0283 0.2880 -0.23543 2011 3 11 55631 0.0275 0.2889 -0.23639 2011 3 12 55632 0.0266 0.2898 -0.23728 2011 3 13 55633 0.0258 0.2907 -0.23816 2011 3 14 55634 0.0250 0.2917 -0.23910 2011 3 15 55635 0.0243 0.2926 -0.24012 2011 3 16 55636 0.0235 0.2936 -0.24132 2011 3 17 55637 0.0228 0.2946 -0.24279 2011 3 18 55638 0.0221 0.2956 -0.24452 2011 3 19 55639 0.0214 0.2966 -0.24643 2011 3 20 55640 0.0207 0.2976 -0.24835 2011 3 21 55641 0.0201 0.2986 -0.25010 2011 3 22 55642 0.0195 0.2996 -0.25162 2011 3 23 55643 0.0189 0.3007 -0.25289 2011 3 24 55644 0.0183 0.3017 -0.25398 2011 3 25 55645 0.0177 0.3028 -0.25491 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) 55261 -64.70 0.20 -7.58 0.34 55262 -64.39 0.34 -7.93 0.34 55263 -64.21 0.34 -8.13 0.34 55264 -64.33 0.37 -8.15 0.34 55265 -64.50 0.40 -8.09 0.34 55266 -64.38 0.40 -8.06 0.34 55267 -63.99 0.40 -7.96 0.34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55261 -0.210 0.080 -0.213 0.340 55262 -0.201 0.135 -0.235 0.340 55263 -0.178 0.135 -0.238 0.340 55264 -0.160 0.147 -0.218 0.340 55265 -0.148 0.159 -0.167 0.340 55266 -0.125 0.159 -0.130 0.340 55267 -0.097 0.159 -0.071 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.