********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 3 March 2011 Vol. XXIV No. 009 ______________________________________________________________________ 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 6 January 2011 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 11 2 25 55617 0.01019 .00010 0.22392 .00009 -0.176481 0.000014 11 2 26 55618 0.00767 .00010 0.22475 .00009 -0.176957 0.000015 11 2 27 55619 0.00500 .00010 0.22568 .00009 -0.177383 0.000015 11 2 28 55620 0.00268 .00010 0.22691 .00009 -0.177836 0.000015 11 3 1 55621 0.00086 .00010 0.22825 .00009 -0.178426 0.000015 11 3 2 55622 -.00062 .00010 0.22941 .00009 -0.179200 0.000015 11 3 3 55623 -.00183 .00010 0.23053 .00009 -0.180084 0.000015 IERS Final Values MJD x y UT1-UTC " " s 11 1 2 55563 0.1277 0.2023 -0.14078 11 1 3 55564 0.1244 0.2015 -0.14096 11 1 4 55565 0.1213 0.2007 -0.14113 11 1 5 55566 0.1177 0.2004 -0.14133 11 1 6 55567 0.1137 0.1999 -0.14164 11 1 7 55568 0.1101 0.1993 -0.14207 11 1 8 55569 0.1063 0.1987 -0.14258 11 1 9 55570 0.1032 0.1976 -0.14313 11 1 10 55571 0.1011 0.1967 -0.14372 11 1 11 55572 0.1000 0.1961 -0.14432 11 1 12 55573 0.0991 0.1960 -0.14491 11 1 13 55574 0.0976 0.1961 -0.14546 11 1 14 55575 0.0953 0.1961 -0.14596 11 1 15 55576 0.0923 0.1958 -0.14631 11 1 16 55577 0.0889 0.1958 -0.14663 11 1 17 55578 0.0850 0.1955 -0.14688 11 1 18 55579 0.0813 0.1950 -0.14715 11 1 19 55580 0.0779 0.1949 -0.14755 11 1 20 55581 0.0746 0.1948 -0.14809 11 1 21 55582 0.0713 0.1947 -0.14880 11 1 22 55583 0.0679 0.1945 -0.14972 11 1 23 55584 0.0648 0.1947 -0.15082 11 1 24 55585 0.0616 0.1950 -0.15199 11 1 25 55586 0.0586 0.1956 -0.15309 11 1 26 55587 0.0554 0.1964 -0.15400 11 1 27 55588 0.0524 0.1973 -0.15471 11 1 28 55589 0.0494 0.1981 -0.15522 11 1 29 55590 0.0476 0.1986 -0.15557 11 1 30 55591 0.0460 0.1994 -0.15587 11 1 31 55592 0.0451 0.1998 -0.15619 11 2 1 55593 0.0444 0.2007 -0.15657 _______________________________________________________________________ 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 = 0.0904 - 0.0904 cos A - 0.0699 sin A - 0.0074 cos C - 0.0412 sin C y = 0.3363 - 0.0609 cos A + 0.0817 sin A - 0.0412 cos C + 0.0074 sin C UT1-UTC = -0.1730 - 0.00066 (MJD - 55631) - (UT2-UT1) where A = 2*pi*(MJD-55623)/365.25 and C = 2*pi*(MJD-55623)/435. TAI-UTC(MJD 55624) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55623)**0.80 S t = 0.00025 (MJD-55623)**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) 2011 3 4 55624 -0.0031 0.2318 -0.18110 2011 3 5 55625 -0.0042 0.2332 -0.18221 2011 3 6 55626 -0.0055 0.2345 -0.18334 2011 3 7 55627 -0.0068 0.2359 -0.18442 2011 3 8 55628 -0.0081 0.2373 -0.18541 2011 3 9 55629 -0.0094 0.2388 -0.18628 2011 3 10 55630 -0.0107 0.2402 -0.18704 2011 3 11 55631 -0.0118 0.2416 -0.18771 2011 3 12 55632 -0.0129 0.2431 -0.18830 2011 3 13 55633 -0.0140 0.2446 -0.18889 2011 3 14 55634 -0.0151 0.2462 -0.18957 2011 3 15 55635 -0.0161 0.2477 -0.19040 2011 3 16 55636 -0.0171 0.2493 -0.19145 2011 3 17 55637 -0.0181 0.2509 -0.19275 2011 3 18 55638 -0.0191 0.2525 -0.19429 2011 3 19 55639 -0.0200 0.2542 -0.19602 2011 3 20 55640 -0.0209 0.2558 -0.19780 2011 3 21 55641 -0.0218 0.2575 -0.19950 2011 3 22 55642 -0.0226 0.2591 -0.20098 2011 3 23 55643 -0.0234 0.2608 -0.20219 2011 3 24 55644 -0.0242 0.2625 -0.20317 2011 3 25 55645 -0.0250 0.2642 -0.20399 2011 3 26 55646 -0.0257 0.2659 -0.20475 2011 3 27 55647 -0.0264 0.2677 -0.20552 2011 3 28 55648 -0.0270 0.2694 -0.20636 2011 3 29 55649 -0.0276 0.2712 -0.20731 2011 3 30 55650 -0.0282 0.2729 -0.20836 2011 3 31 55651 -0.0288 0.2747 -0.20952 2011 4 1 55652 -0.0293 0.2765 -0.21074 2011 4 2 55653 -0.0298 0.2782 -0.21198 2011 4 3 55654 -0.0303 0.2800 -0.21319 2011 4 4 55655 -0.0307 0.2818 -0.21432 2011 4 5 55656 -0.0311 0.2836 -0.21534 2011 4 6 55657 -0.0315 0.2854 -0.21623 2011 4 7 55658 -0.0318 0.2872 -0.21702 2011 4 8 55659 -0.0321 0.2891 -0.21773 2011 4 9 55660 -0.0324 0.2909 -0.21840 2011 4 10 55661 -0.0326 0.2927 -0.21909 2011 4 11 55662 -0.0329 0.2945 -0.21987 2011 4 12 55663 -0.0330 0.2964 -0.22081 2011 4 13 55664 -0.0332 0.2982 -0.22197 2011 4 14 55665 -0.0333 0.3000 -0.22337 2011 4 15 55666 -0.0334 0.3019 -0.22498 2011 4 16 55667 -0.0335 0.3037 -0.22668 2011 4 17 55668 -0.0335 0.3056 -0.22835 2011 4 18 55669 -0.0335 0.3074 -0.22984 2011 4 19 55670 -0.0335 0.3092 -0.23109 2011 4 20 55671 -0.0334 0.3111 -0.23207 2011 4 21 55672 -0.0333 0.3129 -0.23285 2011 4 22 55673 -0.0332 0.3147 -0.23351 2011 4 23 55674 -0.0330 0.3166 -0.23416 2011 4 24 55675 -0.0329 0.3184 -0.23485 2011 4 25 55676 -0.0326 0.3202 -0.23563 2011 4 26 55677 -0.0324 0.3220 -0.23650 2011 4 27 55678 -0.0321 0.3238 -0.23745 2011 4 28 55679 -0.0318 0.3256 -0.23845 2011 4 29 55680 -0.0315 0.3274 -0.23946 2011 4 30 55681 -0.0311 0.3292 -0.24044 2011 5 1 55682 -0.0307 0.3310 -0.24135 2011 5 2 55683 -0.0303 0.3328 -0.24215 2011 5 3 55684 -0.0299 0.3346 -0.24283 2011 5 4 55685 -0.0294 0.3364 -0.24338 2011 5 5 55686 -0.0289 0.3381 -0.24384 2011 5 6 55687 -0.0284 0.3399 -0.24422 2011 5 7 55688 -0.0278 0.3416 -0.24461 2011 5 8 55689 -0.0272 0.3434 -0.24506 2011 5 9 55690 -0.0266 0.3451 -0.24564 2011 5 10 55691 -0.0260 0.3468 -0.24640 2011 5 11 55692 -0.0253 0.3485 -0.24736 2011 5 12 55693 -0.0246 0.3502 -0.24851 2011 5 13 55694 -0.0239 0.3519 -0.24977 2011 5 14 55695 -0.0232 0.3536 -0.25105 2011 5 15 55696 -0.0224 0.3552 -0.25223 2011 5 16 55697 -0.0216 0.3569 -0.25320 2011 5 17 55698 -0.0208 0.3585 -0.25393 2011 5 18 55699 -0.0200 0.3601 -0.25443 2011 5 19 55700 -0.0191 0.3618 -0.25479 2011 5 20 55701 -0.0182 0.3634 -0.25509 2011 5 21 55702 -0.0173 0.3649 -0.25543 2011 5 22 55703 -0.0163 0.3665 -0.25585 2011 5 23 55704 -0.0154 0.3681 -0.25635 2011 5 24 55705 -0.0144 0.3696 -0.25694 2011 5 25 55706 -0.0134 0.3711 -0.25757 2011 5 26 55707 -0.0124 0.3726 -0.25822 2011 5 27 55708 -0.0113 0.3741 -0.25884 2011 5 28 55709 -0.0103 0.3756 -0.25939 2011 5 29 55710 -0.0092 0.3770 -0.25983 2011 5 30 55711 -0.0081 0.3785 -0.26014 2011 5 31 55712 -0.0069 0.3799 -0.26032 2011 6 1 55713 -0.0058 0.3813 -0.26037 2011 6 2 55714 -0.0046 0.3827 -0.26034 2011 6 3 55715 -0.0034 0.3841 -0.26028 2011 6 4 55716 -0.0022 0.3854 -0.26025 2011 6 5 55717 -0.0010 0.3867 -0.26033 2011 6 6 55718 0.0002 0.3881 -0.26057 2011 6 7 55719 0.0015 0.3893 -0.26098 2011 6 8 55720 0.0028 0.3906 -0.26156 2011 6 9 55721 0.0041 0.3919 -0.26224 2011 6 10 55722 0.0054 0.3931 -0.26293 2011 6 11 55723 0.0067 0.3943 -0.26354 2011 6 12 55724 0.0080 0.3955 -0.26398 2011 6 13 55725 0.0094 0.3967 -0.26421 2011 6 14 55726 0.0108 0.3978 -0.26422 2011 6 15 55727 0.0121 0.3990 -0.26407 2011 6 16 55728 0.0135 0.4001 -0.26385 2011 6 17 55729 0.0149 0.4011 -0.26363 2011 6 18 55730 0.0164 0.4022 -0.26349 2011 6 19 55731 0.0178 0.4033 -0.26346 2011 6 20 55732 0.0192 0.4043 -0.26349 2011 6 21 55733 0.0207 0.4053 -0.26359 2011 6 22 55734 0.0222 0.4062 -0.26371 2011 6 23 55735 0.0236 0.4072 -0.26381 2011 6 24 55736 0.0251 0.4081 -0.26385 2011 6 25 55737 0.0266 0.4090 -0.26379 2011 6 26 55738 0.0281 0.4099 -0.26362 2011 6 27 55739 0.0297 0.4108 -0.26331 2011 6 28 55740 0.0312 0.4116 -0.26289 2011 6 29 55741 0.0327 0.4124 -0.26238 2011 6 30 55742 0.0343 0.4132 -0.26185 2011 7 1 55743 0.0358 0.4140 -0.26135 2011 7 2 55744 0.0374 0.4147 -0.26096 2011 7 3 55745 0.0389 0.4154 -0.26074 2011 7 4 55746 0.0405 0.4161 -0.26073 2011 7 5 55747 0.0421 0.4168 -0.26091 2011 7 6 55748 0.0436 0.4175 -0.26121 2011 7 7 55749 0.0452 0.4181 -0.26154 2011 7 8 55750 0.0468 0.4187 -0.26180 2011 7 9 55751 0.0484 0.4192 -0.26191 2011 7 10 55752 0.0500 0.4198 -0.26182 2011 7 11 55753 0.0516 0.4203 -0.26152 2011 7 12 55754 0.0532 0.4208 -0.26107 2011 7 13 55755 0.0548 0.4213 -0.26053 2011 7 14 55756 0.0564 0.4218 -0.25999 2011 7 15 55757 0.0580 0.4222 -0.25952 2011 7 16 55758 0.0596 0.4226 -0.25916 2011 7 17 55759 0.0612 0.4230 -0.25892 2011 7 18 55760 0.0628 0.4233 -0.25877 2011 7 19 55761 0.0644 0.4236 -0.25869 2011 7 20 55762 0.0660 0.4240 -0.25861 2011 7 21 55763 0.0676 0.4242 -0.25850 2011 7 22 55764 0.0692 0.4245 -0.25831 2011 7 23 55765 0.0708 0.4247 -0.25802 2011 7 24 55766 0.0724 0.4249 -0.25762 2011 7 25 55767 0.0740 0.4251 -0.25711 2011 7 26 55768 0.0755 0.4253 -0.25652 2011 7 27 55769 0.0771 0.4254 -0.25590 2011 7 28 55770 0.0787 0.4255 -0.25530 2011 7 29 55771 0.0803 0.4256 -0.25480 2011 7 30 55772 0.0818 0.4257 -0.25448 2011 7 31 55773 0.0834 0.4257 -0.25439 2011 8 1 55774 0.0850 0.4257 -0.25453 2011 8 2 55775 0.0865 0.4257 -0.25485 2011 8 3 55776 0.0880 0.4257 -0.25526 2011 8 4 55777 0.0896 0.4257 -0.25563 2011 8 5 55778 0.0911 0.4256 -0.25586 2011 8 6 55779 0.0926 0.4255 -0.25589 2011 8 7 55780 0.0941 0.4254 -0.25571 2011 8 8 55781 0.0956 0.4252 -0.25538 2011 8 9 55782 0.0971 0.4251 -0.25495 2011 8 10 55783 0.0986 0.4249 -0.25451 2011 8 11 55784 0.1001 0.4247 -0.25414 2011 8 12 55785 0.1016 0.4244 -0.25388 2011 8 13 55786 0.1030 0.4242 -0.25375 2011 8 14 55787 0.1045 0.4239 -0.25375 2011 8 15 55788 0.1059 0.4236 -0.25384 2011 8 16 55789 0.1073 0.4233 -0.25397 2011 8 17 55790 0.1087 0.4229 -0.25409 2011 8 18 55791 0.1101 0.4226 -0.25417 2011 8 19 55792 0.1115 0.4222 -0.25416 2011 8 20 55793 0.1129 0.4218 -0.25405 2011 8 21 55794 0.1143 0.4214 -0.25385 2011 8 22 55795 0.1156 0.4209 -0.25357 2011 8 23 55796 0.1169 0.4205 -0.25325 2011 8 24 55797 0.1183 0.4200 -0.25295 2011 8 25 55798 0.1196 0.4195 -0.25273 2011 8 26 55799 0.1209 0.4190 -0.25267 2011 8 27 55800 0.1221 0.4184 -0.25283 2011 8 28 55801 0.1234 0.4179 -0.25326 2011 8 29 55802 0.1246 0.4173 -0.25393 2011 8 30 55803 0.1259 0.4167 -0.25477 2011 8 31 55804 0.1271 0.4161 -0.25564 2011 9 1 55805 0.1283 0.4155 -0.25643 2011 9 2 55806 0.1295 0.4148 -0.25702 2011 9 3 55807 0.1307 0.4142 -0.25740 2011 9 4 55808 0.1318 0.4135 -0.25758 2011 9 5 55809 0.1329 0.4128 -0.25764 2011 9 6 55810 0.1341 0.4121 -0.25768 2011 9 7 55811 0.1352 0.4113 -0.25776 2011 9 8 55812 0.1362 0.4106 -0.25793 2011 9 9 55813 0.1373 0.4098 -0.25823 2011 9 10 55814 0.1384 0.4090 -0.25864 2011 9 11 55815 0.1394 0.4083 -0.25914 2011 9 12 55816 0.1404 0.4074 -0.25967 2011 9 13 55817 0.1414 0.4066 -0.26020 2011 9 14 55818 0.1424 0.4058 -0.26065 2011 9 15 55819 0.1433 0.4049 -0.26101 2011 9 16 55820 0.1443 0.4041 -0.26126 2011 9 17 55821 0.1452 0.4032 -0.26141 2011 9 18 55822 0.1461 0.4023 -0.26148 2011 9 19 55823 0.1470 0.4014 -0.26153 2011 9 20 55824 0.1478 0.4005 -0.26160 2011 9 21 55825 0.1487 0.3996 -0.26178 2011 9 22 55826 0.1495 0.3986 -0.26211 2011 9 23 55827 0.1503 0.3977 -0.26267 2011 9 24 55828 0.1511 0.3967 -0.26350 2011 9 25 55829 0.1519 0.3958 -0.26461 2011 9 26 55830 0.1526 0.3948 -0.26594 2011 9 27 55831 0.1533 0.3938 -0.26740 2011 9 28 55832 0.1540 0.3928 -0.26885 2011 9 29 55833 0.1547 0.3918 -0.27015 2011 9 30 55834 0.1554 0.3907 -0.27123 2011 10 1 55835 0.1560 0.3897 -0.27208 2011 10 2 55836 0.1567 0.3887 -0.27278 2011 10 3 55837 0.1573 0.3876 -0.27342 2011 10 4 55838 0.1579 0.3866 -0.27411 2011 10 5 55839 0.1584 0.3855 -0.27489 2011 10 6 55840 0.1590 0.3845 -0.27580 2011 10 7 55841 0.1595 0.3834 -0.27680 2011 10 8 55842 0.1600 0.3823 -0.27789 2011 10 9 55843 0.1605 0.3812 -0.27905 2011 10 10 55844 0.1609 0.3801 -0.28023 2011 10 11 55845 0.1614 0.3790 -0.28137 2011 10 12 55846 0.1618 0.3779 -0.28244 2011 10 13 55847 0.1622 0.3768 -0.28340 2011 10 14 55848 0.1626 0.3757 -0.28424 2011 10 15 55849 0.1629 0.3746 -0.28498 2011 10 16 55850 0.1633 0.3734 -0.28560 2011 10 17 55851 0.1636 0.3723 -0.28615 2011 10 18 55852 0.1639 0.3712 -0.28665 2011 10 19 55853 0.1642 0.3700 -0.28722 2011 10 20 55854 0.1644 0.3689 -0.28794 2011 10 21 55855 0.1647 0.3678 -0.28890 2011 10 22 55856 0.1649 0.3666 -0.29009 2011 10 23 55857 0.1651 0.3655 -0.29153 2011 10 24 55858 0.1653 0.3643 -0.29312 2011 10 25 55859 0.1654 0.3632 -0.29472 2011 10 26 55860 0.1656 0.3621 -0.29620 2011 10 27 55861 0.1657 0.3609 -0.29749 2011 10 28 55862 0.1658 0.3598 -0.29860 2011 10 29 55863 0.1659 0.3586 -0.29950 2011 10 30 55864 0.1659 0.3575 -0.30036 2011 10 31 55865 0.1660 0.3563 -0.30127 2011 11 1 55866 0.1660 0.3552 -0.30224 2011 11 2 55867 0.1660 0.3540 -0.30332 2011 11 3 55868 0.1660 0.3529 -0.30440 2011 11 4 55869 0.1660 0.3517 -0.30549 2011 11 5 55870 0.1659 0.3506 -0.30655 2011 11 6 55871 0.1659 0.3495 -0.30760 2011 11 7 55872 0.1658 0.3483 -0.30864 2011 11 8 55873 0.1657 0.3472 -0.30962 2011 11 9 55874 0.1655 0.3461 -0.31053 2011 11 10 55875 0.1654 0.3449 -0.31134 2011 11 11 55876 0.1652 0.3438 -0.31203 2011 11 12 55877 0.1651 0.3427 -0.31261 2011 11 13 55878 0.1649 0.3416 -0.31312 2011 11 14 55879 0.1647 0.3405 -0.31365 2011 11 15 55880 0.1645 0.3394 -0.31427 2011 11 16 55881 0.1642 0.3383 -0.31502 2011 11 17 55882 0.1640 0.3372 -0.31596 2011 11 18 55883 0.1637 0.3361 -0.31707 2011 11 19 55884 0.1634 0.3350 -0.31833 2011 11 20 55885 0.1631 0.3340 -0.31978 2011 11 21 55886 0.1628 0.3329 -0.32129 2011 11 22 55887 0.1624 0.3318 -0.32274 2011 11 23 55888 0.1621 0.3308 -0.32403 2011 11 24 55889 0.1617 0.3297 -0.32513 2011 11 25 55890 0.1613 0.3287 -0.32600 2011 11 26 55891 0.1609 0.3276 -0.32672 2011 11 27 55892 0.1605 0.3266 -0.32736 2011 11 28 55893 0.1601 0.3256 -0.32801 2011 11 29 55894 0.1597 0.3246 -0.32876 2011 11 30 55895 0.1592 0.3236 -0.32959 2011 12 1 55896 0.1588 0.3226 -0.33055 2011 12 2 55897 0.1583 0.3216 -0.33166 2011 12 3 55898 0.1578 0.3206 -0.33276 2011 12 4 55899 0.1573 0.3197 -0.33381 2011 12 5 55900 0.1568 0.3187 -0.33484 2011 12 6 55901 0.1563 0.3177 -0.33584 2011 12 7 55902 0.1557 0.3168 -0.33678 2011 12 8 55903 0.1552 0.3159 -0.33764 2011 12 9 55904 0.1546 0.3150 -0.33840 2011 12 10 55905 0.1541 0.3140 -0.33911 2011 12 11 55906 0.1535 0.3131 -0.33976 2011 12 12 55907 0.1529 0.3122 -0.34043 2011 12 13 55908 0.1523 0.3114 -0.34115 2011 12 14 55909 0.1517 0.3105 -0.34206 2011 12 15 55910 0.1510 0.3096 -0.34316 2011 12 16 55911 0.1504 0.3088 -0.34447 2011 12 17 55912 0.1498 0.3080 -0.34597 2011 12 18 55913 0.1491 0.3071 -0.34757 2011 12 19 55914 0.1485 0.3063 -0.34918 2011 12 20 55915 0.1478 0.3055 -0.35068 2011 12 21 55916 0.1471 0.3047 -0.35202 2011 12 22 55917 0.1465 0.3039 -0.35325 2011 12 23 55918 0.1458 0.3032 -0.35442 2011 12 24 55919 0.1451 0.3024 -0.35555 2011 12 25 55920 0.1444 0.3017 -0.35660 2011 12 26 55921 0.1437 0.3009 -0.35769 2011 12 27 55922 0.1430 0.3002 -0.35892 2011 12 28 55923 0.1422 0.2995 -0.36030 2011 12 29 55924 0.1415 0.2988 -0.36179 2011 12 30 55925 0.1408 0.2981 -0.36327 2011 12 31 55926 0.1401 0.2975 -0.36468 2012 1 1 55927 0.1393 0.2968 -0.36600 2012 1 2 55928 0.1386 0.2962 -0.36719 2012 1 3 55929 0.1378 0.2955 -0.36820 2012 1 4 55930 0.1371 0.2949 -0.36907 2012 1 5 55931 0.1363 0.2943 -0.36978 2012 1 6 55932 0.1356 0.2937 -0.37040 2012 1 7 55933 0.1348 0.2931 -0.37103 2012 1 8 55934 0.1340 0.2926 -0.37170 2012 1 9 55935 0.1333 0.2920 -0.37244 2012 1 10 55936 0.1325 0.2915 -0.37326 2012 1 11 55937 0.1317 0.2909 -0.37415 2012 1 12 55938 0.1309 0.2904 -0.37510 2012 1 13 55939 0.1302 0.2899 -0.37610 2012 1 14 55940 0.1294 0.2894 -0.37713 2012 1 15 55941 0.1286 0.2889 -0.37818 2012 1 16 55942 0.1278 0.2885 -0.37917 2012 1 17 55943 0.1270 0.2880 -0.38009 2012 1 18 55944 0.1263 0.2876 -0.38093 2012 1 19 55945 0.1255 0.2872 -0.38169 2012 1 20 55946 0.1247 0.2867 -0.38244 2012 1 21 55947 0.1239 0.2863 -0.38324 2012 1 22 55948 0.1231 0.2859 -0.38414 2012 1 23 55949 0.1224 0.2856 -0.38518 2012 1 24 55950 0.1216 0.2852 -0.38630 2012 1 25 55951 0.1208 0.2849 -0.38746 2012 1 26 55952 0.1200 0.2845 -0.38869 2012 1 27 55953 0.1193 0.2842 -0.38993 2012 1 28 55954 0.1185 0.2839 -0.39117 2012 1 29 55955 0.1177 0.2836 -0.39234 2012 1 30 55956 0.1170 0.2833 -0.39338 2012 1 31 55957 0.1162 0.2830 -0.39432 2012 2 1 55958 0.1154 0.2827 -0.39518 2012 2 2 55959 0.1147 0.2825 -0.39598 2012 2 3 55960 0.1139 0.2823 -0.39672 2012 2 4 55961 0.1132 0.2820 -0.39749 2012 2 5 55962 0.1124 0.2818 -0.39831 2012 2 6 55963 0.1117 0.2816 -0.39922 2012 2 7 55964 0.1110 0.2814 -0.40027 2012 2 8 55965 0.1102 0.2812 -0.40151 2012 2 9 55966 0.1095 0.2811 -0.40291 2012 2 10 55967 0.1088 0.2809 -0.40446 2012 2 11 55968 0.1081 0.2808 -0.40606 2012 2 12 55969 0.1074 0.2806 -0.40757 2012 2 13 55970 0.1067 0.2805 -0.40892 2012 2 14 55971 0.1060 0.2804 -0.41006 2012 2 15 55972 0.1053 0.2803 -0.41098 2012 2 16 55973 0.1046 0.2802 -0.41175 2012 2 17 55974 0.1039 0.2801 -0.41247 2012 2 18 55975 0.1032 0.2801 -0.41326 2012 2 19 55976 0.1025 0.2800 -0.41422 2012 2 20 55977 0.1019 0.2800 -0.41538 2012 2 21 55978 0.1012 0.2799 -0.41663 2012 2 22 55979 0.1006 0.2799 -0.41786 2012 2 23 55980 0.0999 0.2799 -0.41904 2012 2 24 55981 0.0993 0.2799 -0.42018 2012 2 25 55982 0.0987 0.2799 -0.42119 2012 2 26 55983 0.0981 0.2799 -0.42201 2012 2 27 55984 0.0975 0.2799 -0.42271 2012 2 28 55985 0.0968 0.2799 -0.42333 2012 2 29 55986 0.0963 0.2800 -0.42390 2012 3 1 55987 0.0957 0.2800 -0.42448 2012 3 2 55988 0.0951 0.2801 -0.42507 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) 55601 -67.16 0.16 -7.13 0.34 55602 -67.07 0.16 -7.34 0.34 55603 -67.15 0.16 -7.65 0.34 55604 -67.41 0.13 -7.86 0.34 55605 -67.69 0.14 -7.86 0.34 55606 -67.87 0.14 -7.79 0.34 55607 -67.91 0.15 -7.90 0.10 55608 -67.73 0.20 -8.23 0.13 55609 -67.30 0.20 -8.47 0.13 55610 -66.81 0.20 -8.37 0.13 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 55563 -67.6 -6.3 55564 -67.2 -6.4 55565 -66.8 -6.4 55566 -66.6 -6.2 55567 -66.5 -6.0 55568 -66.4 -5.9 55569 -66.4 -5.9 55570 -66.5 -6.1 55571 -66.7 -6.2 55572 -66.9 -6.2 55573 -66.7 -6.2 55574 -66.4 -6.2 55575 -66.1 -6.4 55576 -66.3 -6.5 55577 -66.8 -6.4 55578 -67.2 -6.4 55579 -67.5 -6.6 55580 -67.5 -7.0 55581 -67.0 -7.1 55582 -66.4 -7.0 55583 -66.2 -6.6 55584 -66.5 -6.4 55585 -66.9 -6.3 55586 -67.1 -6.3 55587 -67.1 -6.5 55588 -67.1 -6.6 55589 -67.1 -6.7 55590 -67.3 -6.9 55591 -67.4 -7.1 55592 -67.4 -7.2 55593 -67.2 -7.2 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55601 0.083 0.064 -0.259 0.340 55602 0.086 0.064 -0.295 0.340 55603 0.093 0.064 -0.350 0.340 55604 0.107 0.052 -0.386 0.340 55605 0.130 0.056 -0.413 0.340 55606 0.159 0.056 -0.438 0.340 55607 0.177 0.060 -0.447 0.100 55608 0.167 0.080 -0.452 0.130 55609 0.121 0.080 -0.468 0.130 55610 0.068 0.080 -0.545 0.130 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 55563 0.19 -0.17 55564 0.24 -0.16 55565 0.25 -0.23 55566 0.22 -0.25 55567 0.20 -0.30 55568 0.21 -0.31 55569 0.21 -0.23 55570 0.21 -0.26 55571 0.22 -0.24 55572 0.22 -0.23 55573 0.33 -0.22 55574 0.47 -0.13 55575 0.62 -0.18 55576 0.60 -0.23 55577 0.46 -0.22 55578 0.35 -0.29 55579 0.22 -0.34 55580 0.12 -0.43 55581 0.13 -0.33 55582 0.18 -0.35 55583 0.21 -0.27 55584 0.17 -0.31 55585 0.14 -0.25 55586 0.16 -0.17 55587 0.20 -0.27 55588 0.21 -0.28 55589 0.26 -0.26 55590 0.24 -0.32 55591 0.23 -0.38 55592 0.20 -0.38 55593 0.18 -0.37 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.