********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 22 April 2010 Vol. XXIII No. 016 ______________________________________________________________________ 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 4 16 55302 -.06890 .00010 0.35522 .00009 -0.002465 0.000009 10 4 17 55303 -.06904 .00010 0.35745 .00009 -0.003676 0.000009 10 4 18 55304 -.06918 .00010 0.35966 .00009 -0.004774 0.000009 10 4 19 55305 -.06902 .00010 0.36202 .00009 -0.005806 0.000010 10 4 20 55306 -.06885 .00010 0.36457 .00009 -0.006852 0.000009 10 4 21 55307 -.06893 .00010 0.36693 .00009 -0.008026 0.000009 10 4 22 55308 -.06940 .00009 0.36942 .00010 -0.009423 0.000055 IERS Final Values MJD x y UT1-UTC " " s 10 2 2 55229 0.0087 0.2093 0.08598 10 2 3 55230 0.0060 0.2104 0.08411 10 2 4 55231 0.0033 0.2119 0.08240 10 2 5 55232 0.0008 0.2128 0.08099 10 2 6 55233 -0.0011 0.2134 0.07985 10 2 7 55234 -0.0029 0.2142 0.07891 10 2 8 55235 -0.0048 0.2151 0.07816 10 2 9 55236 -0.0065 0.2163 0.07754 10 2 10 55237 -0.0083 0.2179 0.07697 10 2 11 55238 -0.0108 0.2196 0.07637 10 2 12 55239 -0.0136 0.2211 0.07565 10 2 13 55240 -0.0160 0.2227 0.07475 10 2 14 55241 -0.0178 0.2245 0.07368 10 2 15 55242 -0.0196 0.2264 0.07246 10 2 16 55243 -0.0212 0.2286 0.07109 10 2 17 55244 -0.0226 0.2310 0.06959 10 2 18 55245 -0.0235 0.2330 0.06803 10 2 19 55246 -0.0242 0.2353 0.06657 10 2 20 55247 -0.0251 0.2373 0.06521 10 2 21 55248 -0.0264 0.2392 0.06396 10 2 22 55249 -0.0275 0.2409 0.06283 10 2 23 55250 -0.0284 0.2426 0.06182 10 2 24 55251 -0.0292 0.2446 0.06084 10 2 25 55252 -0.0305 0.2467 0.05976 10 2 26 55253 -0.0315 0.2488 0.05846 10 2 27 55254 -0.0325 0.2511 0.05689 10 2 28 55255 -0.0340 0.2535 0.05503 10 3 1 55256 -0.0351 0.2557 0.05298 _______________________________________________________________________ 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 = 0.0788 - 0.0666 cos A + 0.1003 sin A - 0.0761 cos C - 0.0694 sin C y = 0.3493 + 0.0906 cos A + 0.0591 sin A - 0.0694 cos C + 0.0761 sin C UT1-UTC = 0.0183 - 0.00086 (MJD - 55316) - (UT2-UT1) where A = 2*pi*(MJD-55308)/365.25 and C = 2*pi*(MJD-55308)/435. TAI-UTC(MJD 55309) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55308)**0.80 S t = 0.00025 (MJD-55308)**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 4 23 55309 -0.0692 0.3715 -0.01106 2010 4 24 55310 -0.0693 0.3737 -0.01288 2010 4 25 55311 -0.0691 0.3759 -0.01478 2010 4 26 55312 -0.0686 0.3781 -0.01664 2010 4 27 55313 -0.0680 0.3803 -0.01838 2010 4 28 55314 -0.0673 0.3826 -0.01993 2010 4 29 55315 -0.0665 0.3849 -0.02124 2010 4 30 55316 -0.0656 0.3872 -0.02232 2010 5 1 55317 -0.0648 0.3894 -0.02322 2010 5 2 55318 -0.0638 0.3917 -0.02399 2010 5 3 55319 -0.0628 0.3939 -0.02474 2010 5 4 55320 -0.0618 0.3962 -0.02556 2010 5 5 55321 -0.0608 0.3984 -0.02649 2010 5 6 55322 -0.0597 0.4006 -0.02753 2010 5 7 55323 -0.0586 0.4028 -0.02870 2010 5 8 55324 -0.0574 0.4049 -0.02996 2010 5 9 55325 -0.0562 0.4071 -0.03126 2010 5 10 55326 -0.0550 0.4092 -0.03255 2010 5 11 55327 -0.0538 0.4113 -0.03377 2010 5 12 55328 -0.0525 0.4134 -0.03487 2010 5 13 55329 -0.0512 0.4155 -0.03581 2010 5 14 55330 -0.0498 0.4175 -0.03655 2010 5 15 55331 -0.0484 0.4195 -0.03714 2010 5 16 55332 -0.0470 0.4215 -0.03763 2010 5 17 55333 -0.0456 0.4235 -0.03812 2010 5 18 55334 -0.0441 0.4255 -0.03867 2010 5 19 55335 -0.0426 0.4274 -0.03937 2010 5 20 55336 -0.0411 0.4293 -0.04024 2010 5 21 55337 -0.0395 0.4312 -0.04127 2010 5 22 55338 -0.0379 0.4330 -0.04241 2010 5 23 55339 -0.0363 0.4348 -0.04354 2010 5 24 55340 -0.0347 0.4366 -0.04455 2010 5 25 55341 -0.0330 0.4384 -0.04536 2010 5 26 55342 -0.0313 0.4402 -0.04594 2010 5 27 55343 -0.0296 0.4419 -0.04629 2010 5 28 55344 -0.0279 0.4436 -0.04646 2010 5 29 55345 -0.0261 0.4452 -0.04652 2010 5 30 55346 -0.0243 0.4469 -0.04656 2010 5 31 55347 -0.0225 0.4485 -0.04665 2010 6 1 55348 -0.0207 0.4501 -0.04683 2010 6 2 55349 -0.0188 0.4516 -0.04713 2010 6 3 55350 -0.0169 0.4531 -0.04756 2010 6 4 55351 -0.0150 0.4546 -0.04810 2010 6 5 55352 -0.0131 0.4561 -0.04872 2010 6 6 55353 -0.0112 0.4575 -0.04937 2010 6 7 55354 -0.0092 0.4589 -0.04998 2010 6 8 55355 -0.0072 0.4603 -0.05051 2010 6 9 55356 -0.0052 0.4616 -0.05091 2010 6 10 55357 -0.0032 0.4629 -0.05117 2010 6 11 55358 -0.0012 0.4642 -0.05129 2010 6 12 55359 0.0009 0.4654 -0.05131 2010 6 13 55360 0.0030 0.4667 -0.05133 2010 6 14 55361 0.0051 0.4678 -0.05143 2010 6 15 55362 0.0071 0.4690 -0.05170 2010 6 16 55363 0.0093 0.4701 -0.05219 2010 6 17 55364 0.0114 0.4712 -0.05289 2010 6 18 55365 0.0135 0.4722 -0.05371 2010 6 19 55366 0.0157 0.4732 -0.05454 2010 6 20 55367 0.0178 0.4742 -0.05526 2010 6 21 55368 0.0200 0.4751 -0.05579 2010 6 22 55369 0.0222 0.4760 -0.05608 2010 6 23 55370 0.0244 0.4769 -0.05613 2010 6 24 55371 0.0266 0.4777 -0.05598 2010 6 25 55372 0.0288 0.4785 -0.05570 2010 6 26 55373 0.0311 0.4793 -0.05537 2010 6 27 55374 0.0333 0.4800 -0.05505 2010 6 28 55375 0.0355 0.4807 -0.05481 2010 6 29 55376 0.0378 0.4814 -0.05467 2010 6 30 55377 0.0400 0.4820 -0.05465 2010 7 1 55378 0.0423 0.4826 -0.05474 2010 7 2 55379 0.0445 0.4832 -0.05490 2010 7 3 55380 0.0468 0.4837 -0.05510 2010 7 4 55381 0.0491 0.4842 -0.05529 2010 7 5 55382 0.0513 0.4846 -0.05543 2010 7 6 55383 0.0536 0.4850 -0.05547 2010 7 7 55384 0.0559 0.4854 -0.05538 2010 7 8 55385 0.0582 0.4858 -0.05516 2010 7 9 55386 0.0604 0.4861 -0.05483 2010 7 10 55387 0.0627 0.4863 -0.05446 2010 7 11 55388 0.0650 0.4866 -0.05414 2010 7 12 55389 0.0673 0.4868 -0.05399 2010 7 13 55390 0.0695 0.4869 -0.05408 2010 7 14 55391 0.0718 0.4871 -0.05441 2010 7 15 55392 0.0741 0.4872 -0.05494 2010 7 16 55393 0.0763 0.4872 -0.05553 2010 7 17 55394 0.0786 0.4872 -0.05606 2010 7 18 55395 0.0808 0.4872 -0.05640 2010 7 19 55396 0.0831 0.4872 -0.05649 2010 7 20 55397 0.0853 0.4871 -0.05634 2010 7 21 55398 0.0876 0.4870 -0.05598 2010 7 22 55399 0.0898 0.4868 -0.05548 2010 7 23 55400 0.0920 0.4867 -0.05491 2010 7 24 55401 0.0942 0.4864 -0.05437 2010 7 25 55402 0.0964 0.4862 -0.05389 2010 7 26 55403 0.0986 0.4859 -0.05353 2010 7 27 55404 0.1008 0.4856 -0.05330 2010 7 28 55405 0.1030 0.4852 -0.05319 2010 7 29 55406 0.1051 0.4849 -0.05318 2010 7 30 55407 0.1073 0.4844 -0.05323 2010 7 31 55408 0.1094 0.4840 -0.05328 2010 8 1 55409 0.1115 0.4835 -0.05330 2010 8 2 55410 0.1137 0.4830 -0.05323 2010 8 3 55411 0.1158 0.4824 -0.05305 2010 8 4 55412 0.1179 0.4818 -0.05276 2010 8 5 55413 0.1199 0.4812 -0.05237 2010 8 6 55414 0.1220 0.4806 -0.05192 2010 8 7 55415 0.1240 0.4799 -0.05151 2010 8 8 55416 0.1261 0.4792 -0.05124 2010 8 9 55417 0.1281 0.4784 -0.05123 2010 8 10 55418 0.1301 0.4777 -0.05152 2010 8 11 55419 0.1320 0.4768 -0.05208 2010 8 12 55420 0.1340 0.4760 -0.05279 2010 8 13 55421 0.1359 0.4752 -0.05352 2010 8 14 55422 0.1378 0.4743 -0.05411 2010 8 15 55423 0.1397 0.4733 -0.05446 2010 8 16 55424 0.1416 0.4724 -0.05456 2010 8 17 55425 0.1435 0.4714 -0.05442 2010 8 18 55426 0.1453 0.4704 -0.05414 2010 8 19 55427 0.1471 0.4694 -0.05379 2010 8 20 55428 0.1489 0.4683 -0.05346 2010 8 21 55429 0.1507 0.4672 -0.05320 2010 8 22 55430 0.1524 0.4661 -0.05306 2010 8 23 55431 0.1541 0.4650 -0.05306 2010 8 24 55432 0.1558 0.4638 -0.05321 2010 8 25 55433 0.1575 0.4626 -0.05348 2010 8 26 55434 0.1592 0.4614 -0.05382 2010 8 27 55435 0.1608 0.4601 -0.05420 2010 8 28 55436 0.1624 0.4589 -0.05456 2010 8 29 55437 0.1640 0.4576 -0.05486 2010 8 30 55438 0.1655 0.4563 -0.05507 2010 8 31 55439 0.1671 0.4549 -0.05517 2010 9 1 55440 0.1686 0.4536 -0.05517 2010 9 2 55441 0.1700 0.4522 -0.05511 2010 9 3 55442 0.1715 0.4508 -0.05507 2010 9 4 55443 0.1729 0.4493 -0.05513 2010 9 5 55444 0.1743 0.4479 -0.05540 2010 9 6 55445 0.1757 0.4464 -0.05595 2010 9 7 55446 0.1770 0.4449 -0.05680 2010 9 8 55447 0.1783 0.4434 -0.05789 2010 9 9 55448 0.1796 0.4419 -0.05910 2010 9 10 55449 0.1808 0.4404 -0.06026 2010 9 11 55450 0.1821 0.4388 -0.06123 2010 9 12 55451 0.1832 0.4372 -0.06195 2010 9 13 55452 0.1844 0.4356 -0.06241 2010 9 14 55453 0.1855 0.4340 -0.06268 2010 9 15 55454 0.1866 0.4324 -0.06285 2010 9 16 55455 0.1877 0.4307 -0.06302 2010 9 17 55456 0.1888 0.4290 -0.06325 2010 9 18 55457 0.1898 0.4274 -0.06359 2010 9 19 55458 0.1907 0.4257 -0.06406 2010 9 20 55459 0.1917 0.4240 -0.06468 2010 9 21 55460 0.1926 0.4222 -0.06543 2010 9 22 55461 0.1935 0.4205 -0.06628 2010 9 23 55462 0.1943 0.4188 -0.06717 2010 9 24 55463 0.1952 0.4170 -0.06806 2010 9 25 55464 0.1960 0.4152 -0.06889 2010 9 26 55465 0.1967 0.4135 -0.06964 2010 9 27 55466 0.1975 0.4117 -0.07028 2010 9 28 55467 0.1981 0.4099 -0.07081 2010 9 29 55468 0.1988 0.4081 -0.07127 2010 9 30 55469 0.1994 0.4062 -0.07171 2010 10 1 55470 0.2000 0.4044 -0.07222 2010 10 2 55471 0.2006 0.4026 -0.07288 2010 10 3 55472 0.2011 0.4007 -0.07377 2010 10 4 55473 0.2017 0.3989 -0.07495 2010 10 5 55474 0.2021 0.3970 -0.07638 2010 10 6 55475 0.2026 0.3952 -0.07798 2010 10 7 55476 0.2030 0.3933 -0.07963 2010 10 8 55477 0.2033 0.3914 -0.08117 2010 10 9 55478 0.2037 0.3896 -0.08248 2010 10 10 55479 0.2040 0.3877 -0.08354 2010 10 11 55480 0.2043 0.3858 -0.08435 2010 10 12 55481 0.2045 0.3839 -0.08502 2010 10 13 55482 0.2047 0.3820 -0.08563 2010 10 14 55483 0.2049 0.3801 -0.08626 2010 10 15 55484 0.2051 0.3783 -0.08698 2010 10 16 55485 0.2052 0.3764 -0.08781 2010 10 17 55486 0.2053 0.3745 -0.08877 2010 10 18 55487 0.2053 0.3726 -0.08983 2010 10 19 55488 0.2053 0.3707 -0.09098 2010 10 20 55489 0.2053 0.3688 -0.09216 2010 10 21 55490 0.2053 0.3669 -0.09334 2010 10 22 55491 0.2052 0.3650 -0.09446 2010 10 23 55492 0.2051 0.3631 -0.09546 2010 10 24 55493 0.2049 0.3613 -0.09634 2010 10 25 55494 0.2048 0.3594 -0.09708 2010 10 26 55495 0.2046 0.3575 -0.09769 2010 10 27 55496 0.2043 0.3556 -0.09824 2010 10 28 55497 0.2041 0.3538 -0.09879 2010 10 29 55498 0.2038 0.3519 -0.09943 2010 10 30 55499 0.2035 0.3501 -0.10023 2010 10 31 55500 0.2031 0.3482 -0.10125 2010 11 1 55501 0.2027 0.3464 -0.10247 2010 11 2 55502 0.2023 0.3446 -0.10386 2010 11 3 55503 0.2019 0.3428 -0.10531 2010 11 4 55504 0.2014 0.3409 -0.10670 2010 11 5 55505 0.2009 0.3391 -0.10792 2010 11 6 55506 0.2004 0.3373 -0.10890 2010 11 7 55507 0.1998 0.3356 -0.10965 2010 11 8 55508 0.1992 0.3338 -0.11022 2010 11 9 55509 0.1986 0.3320 -0.11072 2010 11 10 55510 0.1980 0.3303 -0.11121 2010 11 11 55511 0.1973 0.3285 -0.11179 2010 11 12 55512 0.1966 0.3268 -0.11246 2010 11 13 55513 0.1959 0.3251 -0.11326 2010 11 14 55514 0.1952 0.3234 -0.11415 2010 11 15 55515 0.1944 0.3217 -0.11513 2010 11 16 55516 0.1936 0.3200 -0.11614 2010 11 17 55517 0.1928 0.3183 -0.11716 2010 11 18 55518 0.1919 0.3167 -0.11813 2010 11 19 55519 0.1910 0.3151 -0.11905 2010 11 20 55520 0.1901 0.3134 -0.11988 2010 11 21 55521 0.1892 0.3118 -0.12061 2010 11 22 55522 0.1882 0.3103 -0.12126 2010 11 23 55523 0.1873 0.3087 -0.12187 2010 11 24 55524 0.1863 0.3071 -0.12249 2010 11 25 55525 0.1852 0.3056 -0.12321 2010 11 26 55526 0.1842 0.3041 -0.12410 2010 11 27 55527 0.1831 0.3026 -0.12521 2010 11 28 55528 0.1820 0.3011 -0.12652 2010 11 29 55529 0.1809 0.2996 -0.12794 2010 11 30 55530 0.1798 0.2982 -0.12936 2010 12 1 55531 0.1787 0.2967 -0.13068 2010 12 2 55532 0.1775 0.2953 -0.13188 2010 12 3 55533 0.1763 0.2939 -0.13293 2010 12 4 55534 0.1751 0.2926 -0.13376 2010 12 5 55535 0.1738 0.2912 -0.13438 2010 12 6 55536 0.1726 0.2899 -0.13485 2010 12 7 55537 0.1713 0.2886 -0.13530 2010 12 8 55538 0.1700 0.2873 -0.13584 2010 12 9 55539 0.1687 0.2860 -0.13645 2010 12 10 55540 0.1674 0.2848 -0.13715 2010 12 11 55541 0.1661 0.2836 -0.13798 2010 12 12 55542 0.1647 0.2824 -0.13888 2010 12 13 55543 0.1634 0.2812 -0.13983 2010 12 14 55544 0.1620 0.2800 -0.14081 2010 12 15 55545 0.1606 0.2789 -0.14179 2010 12 16 55546 0.1592 0.2778 -0.14270 2010 12 17 55547 0.1577 0.2767 -0.14349 2010 12 18 55548 0.1563 0.2756 -0.14416 2010 12 19 55549 0.1548 0.2746 -0.14472 2010 12 20 55550 0.1534 0.2736 -0.14525 2010 12 21 55551 0.1519 0.2726 -0.14578 2010 12 22 55552 0.1504 0.2716 -0.14639 2010 12 23 55553 0.1489 0.2707 -0.14716 2010 12 24 55554 0.1474 0.2698 -0.14813 2010 12 25 55555 0.1458 0.2689 -0.14930 2010 12 26 55556 0.1443 0.2680 -0.15065 2010 12 27 55557 0.1428 0.2671 -0.15209 2010 12 28 55558 0.1412 0.2663 -0.15351 2010 12 29 55559 0.1396 0.2655 -0.15484 2010 12 30 55560 0.1381 0.2648 -0.15601 2010 12 31 55561 0.1365 0.2640 -0.15697 2011 1 1 55562 0.1349 0.2633 -0.15770 2011 1 2 55563 0.1333 0.2626 -0.15826 2011 1 3 55564 0.1317 0.2619 -0.15873 2011 1 4 55565 0.1301 0.2613 -0.15921 2011 1 5 55566 0.1285 0.2607 -0.15974 2011 1 6 55567 0.1269 0.2601 -0.16037 2011 1 7 55568 0.1253 0.2595 -0.16113 2011 1 8 55569 0.1236 0.2590 -0.16198 2011 1 9 55570 0.1220 0.2585 -0.16291 2011 1 10 55571 0.1204 0.2580 -0.16388 2011 1 11 55572 0.1188 0.2575 -0.16481 2011 1 12 55573 0.1171 0.2571 -0.16570 2011 1 13 55574 0.1155 0.2567 -0.16654 2011 1 14 55575 0.1138 0.2563 -0.16728 2011 1 15 55576 0.1122 0.2559 -0.16796 2011 1 16 55577 0.1106 0.2556 -0.16859 2011 1 17 55578 0.1089 0.2553 -0.16922 2011 1 18 55579 0.1073 0.2550 -0.16991 2011 1 19 55580 0.1057 0.2548 -0.17074 2011 1 20 55581 0.1040 0.2545 -0.17174 2011 1 21 55582 0.1024 0.2543 -0.17299 2011 1 22 55583 0.1008 0.2541 -0.17448 2011 1 23 55584 0.0991 0.2540 -0.17606 2011 1 24 55585 0.0975 0.2539 -0.17764 2011 1 25 55586 0.0959 0.2538 -0.17915 2011 1 26 55587 0.0943 0.2537 -0.18045 2011 1 27 55588 0.0926 0.2537 -0.18148 2011 1 28 55589 0.0910 0.2536 -0.18231 2011 1 29 55590 0.0894 0.2536 -0.18303 2011 1 30 55591 0.0878 0.2537 -0.18371 2011 1 31 55592 0.0862 0.2537 -0.18440 2011 2 1 55593 0.0847 0.2538 -0.18517 2011 2 2 55594 0.0831 0.2539 -0.18599 2011 2 3 55595 0.0815 0.2540 -0.18688 2011 2 4 55596 0.0799 0.2542 -0.18785 2011 2 5 55597 0.0784 0.2544 -0.18888 2011 2 6 55598 0.0769 0.2546 -0.18996 2011 2 7 55599 0.0753 0.2548 -0.19112 2011 2 8 55600 0.0738 0.2550 -0.19228 2011 2 9 55601 0.0723 0.2553 -0.19338 2011 2 10 55602 0.0708 0.2556 -0.19434 2011 2 11 55603 0.0693 0.2559 -0.19515 2011 2 12 55604 0.0678 0.2563 -0.19581 2011 2 13 55605 0.0663 0.2566 -0.19640 2011 2 14 55606 0.0648 0.2570 -0.19700 2011 2 15 55607 0.0634 0.2574 -0.19767 2011 2 16 55608 0.0620 0.2579 -0.19857 2011 2 17 55609 0.0605 0.2583 -0.19974 2011 2 18 55610 0.0591 0.2588 -0.20117 2011 2 19 55611 0.0577 0.2593 -0.20284 2011 2 20 55612 0.0563 0.2598 -0.20463 2011 2 21 55613 0.0550 0.2604 -0.20635 2011 2 22 55614 0.0536 0.2609 -0.20790 2011 2 23 55615 0.0523 0.2615 -0.20923 2011 2 24 55616 0.0509 0.2621 -0.21032 2011 2 25 55617 0.0496 0.2627 -0.21122 2011 2 26 55618 0.0483 0.2634 -0.21198 2011 2 27 55619 0.0471 0.2640 -0.21270 2011 2 28 55620 0.0458 0.2647 -0.21349 2011 3 1 55621 0.0445 0.2654 -0.21439 2011 3 2 55622 0.0433 0.2662 -0.21542 2011 3 3 55623 0.0421 0.2669 -0.21655 2011 3 4 55624 0.0409 0.2677 -0.21777 2011 3 5 55625 0.0397 0.2684 -0.21906 2011 3 6 55626 0.0386 0.2692 -0.22040 2011 3 7 55627 0.0374 0.2700 -0.22181 2011 3 8 55628 0.0363 0.2709 -0.22323 2011 3 9 55629 0.0352 0.2717 -0.22461 2011 3 10 55630 0.0341 0.2726 -0.22594 2011 3 11 55631 0.0330 0.2735 -0.22719 2011 3 12 55632 0.0320 0.2743 -0.22837 2011 3 13 55633 0.0309 0.2753 -0.22955 2011 3 14 55634 0.0299 0.2762 -0.23079 2011 3 15 55635 0.0289 0.2771 -0.23215 2011 3 16 55636 0.0280 0.2781 -0.23374 2011 3 17 55637 0.0270 0.2790 -0.23564 2011 3 18 55638 0.0261 0.2800 -0.23784 2011 3 19 55639 0.0252 0.2810 -0.24020 2011 3 20 55640 0.0243 0.2820 -0.24256 2011 3 21 55641 0.0234 0.2831 -0.24479 2011 3 22 55642 0.0226 0.2841 -0.24677 2011 3 23 55643 0.0217 0.2851 -0.24848 2011 3 24 55644 0.0209 0.2862 -0.24995 2011 3 25 55645 0.0202 0.2873 -0.25125 2011 3 26 55646 0.0194 0.2883 -0.25251 2011 3 27 55647 0.0186 0.2894 -0.25379 2011 3 28 55648 0.0179 0.2905 -0.25514 2011 3 29 55649 0.0172 0.2917 -0.25659 2011 3 30 55650 0.0165 0.2928 -0.25816 2011 3 31 55651 0.0159 0.2939 -0.25983 2011 4 1 55652 0.0153 0.2951 -0.26153 2011 4 2 55653 0.0146 0.2962 -0.26321 2011 4 3 55654 0.0141 0.2974 -0.26487 2011 4 4 55655 0.0135 0.2985 -0.26649 2011 4 5 55656 0.0129 0.2997 -0.26804 2011 4 6 55657 0.0124 0.3009 -0.26948 2011 4 7 55658 0.0119 0.3021 -0.27078 2011 4 8 55659 0.0114 0.3033 -0.27194 2011 4 9 55660 0.0110 0.3045 -0.27307 2011 4 10 55661 0.0106 0.3057 -0.27419 2011 4 11 55662 0.0101 0.3069 -0.27534 2011 4 12 55663 0.0098 0.3081 -0.27658 2011 4 13 55664 0.0094 0.3093 -0.27798 2011 4 14 55665 0.0090 0.3106 -0.27965 2011 4 15 55666 0.0087 0.3118 -0.28153 2011 4 16 55667 0.0084 0.3130 -0.28352 2011 4 17 55668 0.0082 0.3143 -0.28545 2011 4 18 55669 0.0079 0.3155 -0.28721 2011 4 19 55670 0.0077 0.3167 -0.28871 2011 4 20 55671 0.0075 0.3180 -0.28993 2011 4 21 55672 0.0073 0.3192 -0.29094 2011 4 22 55673 0.0071 0.3205 -0.29185 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) 55288 -63.64 0.14 -9.05 0.34 55289 -63.40 0.14 -9.28 0.34 55290 -63.05 0.14 -9.44 0.34 55291 -62.93 0.25 -9.48 0.34 55292 -63.14 0.25 -9.44 0.34 55293 -63.38 0.14 -9.44 0.34 55294 -63.33 0.14 -9.52 0.34 55295 -62.99 0.14 -9.56 0.34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55229 -64.3 -5.9 55230 -64.4 -5.9 55231 -64.6 -5.8 55232 -64.8 -5.7 55233 -64.9 -5.8 55234 -64.8 -6.2 55235 -64.9 -6.5 55236 -65.0 -6.7 55237 -65.1 -6.8 55238 -65.0 -6.8 55239 -64.6 -6.7 55240 -64.2 -6.4 55241 -64.0 -6.1 55242 -64.0 -6.1 55243 -64.1 -6.4 55244 -64.2 -6.6 55245 -64.3 -6.7 55246 -64.2 -6.7 55247 -64.1 -6.7 55248 -64.1 -6.8 55249 -64.5 -6.9 55250 -65.0 -7.0 55251 -65.5 -7.2 55252 -65.7 -7.5 55253 -65.3 -7.8 55254 -64.7 -7.6 55255 -64.2 -7.1 55256 -64.1 -6.8 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55288 -0.238 0.056 -0.097 0.340 55289 -0.247 0.056 -0.134 0.340 55290 -0.242 0.056 -0.187 0.340 55291 -0.239 0.099 -0.213 0.340 55292 -0.248 0.099 -0.200 0.340 55293 -0.260 0.056 -0.185 0.340 55294 -0.274 0.056 -0.198 0.340 55295 -0.282 0.056 -0.208 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55229 -0.13 -0.37 55230 -0.13 -0.34 55231 -0.12 -0.31 55232 -0.09 -0.20 55233 -0.10 -0.09 55234 -0.08 -0.18 55235 -0.12 -0.26 55236 -0.10 -0.38 55237 -0.10 -0.45 55238 -0.09 -0.43 55239 -0.03 -0.41 55240 0.03 -0.32 55241 0.02 -0.24 55242 -0.03 -0.27 55243 -0.07 -0.39 55244 -0.09 -0.33 55245 -0.13 -0.26 55246 -0.13 -0.18 55247 -0.10 -0.12 55248 -0.03 -0.19 55249 -0.04 -0.32 55250 -0.03 -0.47 55251 -0.04 -0.51 55252 -0.08 -0.39 55253 -0.08 -0.29 55254 -0.13 -0.07 55255 -0.17 0.07 55256 -0.21 -0.01 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.