********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 29 December 2011 Vol. XXIV No. 052 ______________________________________________________________________ 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 = -0.4 seconds beginning 04 Nov 2011 at 0000 UTC Beginning 1 January 2009: TAI-UTC = 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 12 23 55918 0.13414 .00010 0.26966 .00009 -0.408190 0.000011 11 12 24 55919 0.13276 .00010 0.26870 .00009 -0.408935 0.000007 11 12 25 55920 0.13136 .00009 0.26801 .00010 -0.409731 0.000004 11 12 26 55921 0.12960 .00009 0.26743 .00009 -0.410685 0.000004 11 12 27 55922 0.12776 .00009 0.26684 .00009 -0.411848 0.000004 11 12 28 55923 0.12613 .00009 0.26633 .00009 -0.413204 0.000004 11 12 29 55924 0.12452 .00009 0.26578 .00009 -0.414665 0.000004 _______________________________________________________________________ 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 = 0.0887 - 0.0111 cos A - 0.1216 sin A + 0.0477 cos C + 0.0384 sin C y = 0.3357 - 0.1111 cos A + 0.0057 sin A + 0.0384 cos C - 0.0477 sin C UT1-UTC = -0.4316 - 0.00085 (MJD - 55932) - (UT2-UT1) where A = 2*pi*(MJD-55924)/365.25 and C = 2*pi*(MJD-55924)/435. TAI-UTC(MJD 55925) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55924)**0.80 S t = 0.00025 (MJD-55924)**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 12 30 55925 0.1231 0.2653 -0.41610 2011 12 31 55926 0.1217 0.2649 -0.41745 2012 1 1 55927 0.1203 0.2645 -0.41871 2012 1 2 55928 0.1190 0.2643 -0.41985 2012 1 3 55929 0.1177 0.2641 -0.42087 2012 1 4 55930 0.1163 0.2640 -0.42175 2012 1 5 55931 0.1150 0.2639 -0.42251 2012 1 6 55932 0.1138 0.2638 -0.42319 2012 1 7 55933 0.1125 0.2637 -0.42385 2012 1 8 55934 0.1113 0.2637 -0.42455 2012 1 9 55935 0.1100 0.2637 -0.42536 2012 1 10 55936 0.1088 0.2638 -0.42634 2012 1 11 55937 0.1076 0.2639 -0.42754 2012 1 12 55938 0.1064 0.2639 -0.42891 2012 1 13 55939 0.1052 0.2641 -0.43039 2012 1 14 55940 0.1040 0.2642 -0.43190 2012 1 15 55941 0.1028 0.2643 -0.43339 2012 1 16 55942 0.1017 0.2645 -0.43478 2012 1 17 55943 0.1005 0.2647 -0.43600 2012 1 18 55944 0.0994 0.2649 -0.43704 2012 1 19 55945 0.0982 0.2651 -0.43791 2012 1 20 55946 0.0971 0.2654 -0.43866 2012 1 21 55947 0.0960 0.2656 -0.43937 2012 1 22 55948 0.0949 0.2659 -0.44013 2012 1 23 55949 0.0938 0.2662 -0.44098 2012 1 24 55950 0.0927 0.2665 -0.44196 2012 1 25 55951 0.0916 0.2668 -0.44303 2012 1 26 55952 0.0906 0.2672 -0.44415 2012 1 27 55953 0.0895 0.2675 -0.44526 2012 1 28 55954 0.0885 0.2679 -0.44631 2012 1 29 55955 0.0875 0.2683 -0.44728 2012 1 30 55956 0.0865 0.2687 -0.44814 2012 1 31 55957 0.0855 0.2692 -0.44888 2012 2 1 55958 0.0845 0.2696 -0.44950 2012 2 2 55959 0.0835 0.2701 -0.45004 2012 2 3 55960 0.0825 0.2705 -0.45054 2012 2 4 55961 0.0816 0.2710 -0.45106 2012 2 5 55962 0.0807 0.2715 -0.45167 2012 2 6 55963 0.0797 0.2720 -0.45242 2012 2 7 55964 0.0788 0.2726 -0.45337 2012 2 8 55965 0.0779 0.2731 -0.45453 2012 2 9 55966 0.0771 0.2737 -0.45588 2012 2 10 55967 0.0762 0.2743 -0.45735 2012 2 11 55968 0.0754 0.2748 -0.45885 2012 2 12 55969 0.0745 0.2754 -0.46027 2012 2 13 55970 0.0737 0.2761 -0.46154 2012 2 14 55971 0.0729 0.2767 -0.46261 2012 2 15 55972 0.0721 0.2773 -0.46351 2012 2 16 55973 0.0714 0.2780 -0.46429 2012 2 17 55974 0.0706 0.2786 -0.46503 2012 2 18 55975 0.0699 0.2793 -0.46582 2012 2 19 55976 0.0692 0.2800 -0.46671 2012 2 20 55977 0.0685 0.2807 -0.46775 2012 2 21 55978 0.0678 0.2814 -0.46893 2012 2 22 55979 0.0671 0.2821 -0.47021 2012 2 23 55980 0.0665 0.2828 -0.47155 2012 2 24 55981 0.0658 0.2836 -0.47287 2012 2 25 55982 0.0652 0.2843 -0.47415 2012 2 26 55983 0.0646 0.2851 -0.47533 2012 2 27 55984 0.0640 0.2858 -0.47641 2012 2 28 55985 0.0635 0.2866 -0.47739 2012 2 29 55986 0.0629 0.2874 -0.47829 2012 3 1 55987 0.0624 0.2882 -0.47912 2012 3 2 55988 0.0619 0.2890 -0.47996 2012 3 3 55989 0.0614 0.2898 -0.48084 2012 3 4 55990 0.0610 0.2906 -0.48184 2012 3 5 55991 0.0605 0.2914 -0.48301 2012 3 6 55992 0.0601 0.2922 -0.48438 2012 3 7 55993 0.0597 0.2931 -0.48597 2012 3 8 55994 0.0593 0.2939 -0.48775 2012 3 9 55995 0.0589 0.2947 -0.48961 2012 3 10 55996 0.0586 0.2956 -0.49147 2012 3 11 55997 0.0582 0.2964 -0.49320 2012 3 12 55998 0.0579 0.2973 -0.49474 2012 3 13 55999 0.0576 0.2982 -0.49608 2012 3 14 56000 0.0573 0.2990 -0.49727 2012 3 15 56001 0.0571 0.2999 -0.49838 2012 3 16 56002 0.0568 0.3008 -0.49950 2012 3 17 56003 0.0566 0.3016 -0.50069 2012 3 18 56004 0.0564 0.3025 -0.50199 2012 3 19 56005 0.0562 0.3034 -0.50339 2012 3 20 56006 0.0561 0.3043 -0.50488 2012 3 21 56007 0.0559 0.3052 -0.50642 2012 3 22 56008 0.0558 0.3060 -0.50797 2012 3 23 56009 0.0557 0.3069 -0.50946 2012 3 24 56010 0.0556 0.3078 -0.51088 2012 3 25 56011 0.0555 0.3087 -0.51218 2012 3 26 56012 0.0555 0.3096 -0.51337 2012 3 27 56013 0.0554 0.3105 -0.51445 2012 3 28 56014 0.0554 0.3114 -0.51546 2012 3 29 56015 0.0554 0.3123 -0.51644 2012 3 30 56016 0.0555 0.3131 -0.51744 2012 3 31 56017 0.0555 0.3140 -0.51852 2012 4 1 56018 0.0556 0.3149 -0.51973 2012 4 2 56019 0.0556 0.3158 -0.52112 2012 4 3 56020 0.0557 0.3167 -0.52272 2012 4 4 56021 0.0559 0.3175 -0.52452 2012 4 5 56022 0.0560 0.3184 -0.52645 2012 4 6 56023 0.0561 0.3193 -0.52844 2012 4 7 56024 0.0563 0.3202 -0.53035 2012 4 8 56025 0.0565 0.3210 -0.53210 2012 4 9 56026 0.0567 0.3219 -0.53364 2012 4 10 56027 0.0569 0.3227 -0.53498 2012 4 11 56028 0.0572 0.3236 -0.53621 2012 4 12 56029 0.0574 0.3244 -0.53740 2012 4 13 56030 0.0577 0.3253 -0.53864 2012 4 14 56031 0.0580 0.3261 -0.53995 2012 4 15 56032 0.0583 0.3270 -0.54134 2012 4 16 56033 0.0586 0.3278 -0.54282 2012 4 17 56034 0.0589 0.3286 -0.54432 2012 4 18 56035 0.0593 0.3294 -0.54581 2012 4 19 56036 0.0597 0.3302 -0.54726 2012 4 20 56037 0.0601 0.3310 -0.54861 2012 4 21 56038 0.0605 0.3318 -0.54985 2012 4 22 56039 0.0609 0.3326 -0.55095 2012 4 23 56040 0.0613 0.3334 -0.55194 2012 4 24 56041 0.0617 0.3341 -0.55283 2012 4 25 56042 0.0622 0.3349 -0.55367 2012 4 26 56043 0.0627 0.3356 -0.55449 2012 4 27 56044 0.0632 0.3364 -0.55534 2012 4 28 56045 0.0637 0.3371 -0.55629 2012 4 29 56046 0.0642 0.3379 -0.55738 2012 4 30 56047 0.0647 0.3386 -0.55863 2012 5 1 56048 0.0653 0.3393 -0.56007 2012 5 2 56049 0.0658 0.3400 -0.56165 2012 5 3 56050 0.0664 0.3407 -0.56333 2012 5 4 56051 0.0670 0.3413 -0.56499 2012 5 5 56052 0.0675 0.3420 -0.56653 2012 5 6 56053 0.0682 0.3427 -0.56790 2012 5 7 56054 0.0688 0.3433 -0.56906 2012 5 8 56055 0.0694 0.3439 -0.57006 2012 5 9 56056 0.0700 0.3446 -0.57099 2012 5 10 56057 0.0707 0.3452 -0.57193 2012 5 11 56058 0.0713 0.3458 -0.57293 2012 5 12 56059 0.0720 0.3464 -0.57401 2012 5 13 56060 0.0727 0.3470 -0.57515 2012 5 14 56061 0.0734 0.3475 -0.57631 2012 5 15 56062 0.0741 0.3481 -0.57745 2012 5 16 56063 0.0748 0.3486 -0.57853 2012 5 17 56064 0.0755 0.3492 -0.57952 2012 5 18 56065 0.0762 0.3497 -0.58038 2012 5 19 56066 0.0769 0.3502 -0.58110 2012 5 20 56067 0.0777 0.3507 -0.58170 2012 5 21 56068 0.0784 0.3511 -0.58219 2012 5 22 56069 0.0792 0.3516 -0.58260 2012 5 23 56070 0.0799 0.3521 -0.58299 2012 5 24 56071 0.0807 0.3525 -0.58340 2012 5 25 56072 0.0815 0.3529 -0.58387 2012 5 26 56073 0.0823 0.3534 -0.58446 2012 5 27 56074 0.0830 0.3538 -0.58518 2012 5 28 56075 0.0838 0.3541 -0.58605 2012 5 29 56076 0.0846 0.3545 -0.58707 2012 5 30 56077 0.0854 0.3549 -0.58817 2012 5 31 56078 0.0862 0.3552 -0.58929 2012 6 1 56079 0.0870 0.3556 -0.59034 2012 6 2 56080 0.0879 0.3559 -0.59126 2012 6 3 56081 0.0887 0.3562 -0.59199 2012 6 4 56082 0.0895 0.3565 -0.59255 2012 6 5 56083 0.0903 0.3567 -0.59302 2012 6 6 56084 0.0911 0.3570 -0.59346 2012 6 7 56085 0.0920 0.3573 -0.59396 2012 6 8 56086 0.0928 0.3575 -0.59455 2012 6 9 56087 0.0936 0.3577 -0.59522 2012 6 10 56088 0.0944 0.3579 -0.59593 2012 6 11 56089 0.0953 0.3581 -0.59661 2012 6 12 56090 0.0961 0.3583 -0.59724 2012 6 13 56091 0.0969 0.3585 -0.59776 2012 6 14 56092 0.0978 0.3586 -0.59815 2012 6 15 56093 0.0986 0.3587 -0.59840 2012 6 16 56094 0.0994 0.3589 -0.59852 2012 6 17 56095 0.1003 0.3590 -0.59851 2012 6 18 56096 0.1011 0.3591 -0.59841 2012 6 19 56097 0.1019 0.3591 -0.59828 2012 6 20 56098 0.1027 0.3592 -0.59815 2012 6 21 56099 0.1036 0.3593 -0.59808 2012 6 22 56100 0.1044 0.3593 -0.59812 2012 6 23 56101 0.1052 0.3593 -0.59828 2012 6 24 56102 0.1060 0.3593 -0.59858 2012 6 25 56103 0.1068 0.3593 -0.59901 2012 6 26 56104 0.1076 0.3593 -0.59953 2012 6 27 56105 0.1084 0.3593 -0.60007 2012 6 28 56106 0.1092 0.3593 -0.60055 2012 6 29 56107 0.1100 0.3592 -0.60092 2012 6 30 56108 0.1108 0.3591 -0.60113 2012 7 1 56109 0.1116 0.3590 -0.60118 2012 7 2 56110 0.1124 0.3589 -0.60111 2012 7 3 56111 0.1131 0.3588 -0.60099 2012 7 4 56112 0.1139 0.3587 -0.60090 2012 7 5 56113 0.1147 0.3586 -0.60089 2012 7 6 56114 0.1154 0.3584 -0.60098 2012 7 7 56115 0.1162 0.3583 -0.60113 2012 7 8 56116 0.1169 0.3581 -0.60131 2012 7 9 56117 0.1176 0.3579 -0.60146 2012 7 10 56118 0.1183 0.3577 -0.60154 2012 7 11 56119 0.1191 0.3575 -0.60152 2012 7 12 56120 0.1198 0.3573 -0.60139 2012 7 13 56121 0.1205 0.3571 -0.60115 2012 7 14 56122 0.1211 0.3568 -0.60079 2012 7 15 56123 0.1218 0.3566 -0.60036 2012 7 16 56124 0.1225 0.3563 -0.59989 2012 7 17 56125 0.1232 0.3560 -0.59943 2012 7 18 56126 0.1238 0.3557 -0.59905 2012 7 19 56127 0.1245 0.3554 -0.59879 2012 7 20 56128 0.1251 0.3551 -0.59870 2012 7 21 56129 0.1257 0.3548 -0.59879 2012 7 22 56130 0.1263 0.3545 -0.59905 2012 7 23 56131 0.1269 0.3541 -0.59943 2012 7 24 56132 0.1275 0.3538 -0.59988 2012 7 25 56133 0.1281 0.3534 -0.60032 2012 7 26 56134 0.1286 0.3531 -0.60069 2012 7 27 56135 0.1292 0.3527 -0.60095 2012 7 28 56136 0.1297 0.3523 -0.60111 2012 7 29 56137 0.1303 0.3519 -0.60120 2012 7 30 56138 0.1308 0.3515 -0.60128 2012 7 31 56139 0.1313 0.3511 -0.60143 2012 8 1 56140 0.1318 0.3507 -0.60168 2012 8 2 56141 0.1323 0.3502 -0.60207 2012 8 3 56142 0.1327 0.3498 -0.60257 2012 8 4 56143 0.1332 0.3494 -0.60316 2012 8 5 56144 0.1336 0.3489 -0.60380 2012 8 6 56145 0.1340 0.3485 -0.60445 2012 8 7 56146 0.1345 0.3480 -0.60503 2012 8 8 56147 0.1349 0.3475 -0.60552 2012 8 9 56148 0.1352 0.3470 -0.60588 2012 8 10 56149 0.1356 0.3466 -0.60610 2012 8 11 56150 0.1360 0.3461 -0.60626 2012 8 12 56151 0.1363 0.3456 -0.60639 2012 8 13 56152 0.1367 0.3451 -0.60653 2012 8 14 56153 0.1370 0.3446 -0.60669 2012 8 15 56154 0.1373 0.3441 -0.60695 2012 8 16 56155 0.1376 0.3435 -0.60731 2012 8 17 56156 0.1378 0.3430 -0.60782 2012 8 18 56157 0.1381 0.3425 -0.60849 2012 8 19 56158 0.1383 0.3420 -0.60918 2012 8 20 56159 0.1386 0.3414 -0.60992 2012 8 21 56160 0.1388 0.3409 -0.61072 2012 8 22 56161 0.1390 0.3404 -0.61145 2012 8 23 56162 0.1392 0.3398 -0.61212 2012 8 24 56163 0.1393 0.3393 -0.61270 2012 8 25 56164 0.1395 0.3388 -0.61322 2012 8 26 56165 0.1396 0.3382 -0.61381 2012 8 27 56166 0.1398 0.3377 -0.61446 2012 8 28 56167 0.1399 0.3371 -0.61522 2012 8 29 56168 0.1400 0.3366 -0.61610 2012 8 30 56169 0.1401 0.3360 -0.61710 2012 8 31 56170 0.1401 0.3355 -0.61811 2012 9 1 56171 0.1402 0.3349 -0.61910 2012 9 2 56172 0.1402 0.3344 -0.62009 2012 9 3 56173 0.1402 0.3338 -0.62105 2012 9 4 56174 0.1402 0.3333 -0.62186 2012 9 5 56175 0.1402 0.3327 -0.62252 2012 9 6 56176 0.1402 0.3322 -0.62306 2012 9 7 56177 0.1402 0.3316 -0.62351 2012 9 8 56178 0.1401 0.3311 -0.62392 2012 9 9 56179 0.1400 0.3305 -0.62428 2012 9 10 56180 0.1400 0.3300 -0.62457 2012 9 11 56181 0.1399 0.3294 -0.62494 2012 9 12 56182 0.1398 0.3289 -0.62534 2012 9 13 56183 0.1396 0.3284 -0.62587 2012 9 14 56184 0.1395 0.3278 -0.62659 2012 9 15 56185 0.1393 0.3273 -0.62749 2012 9 16 56186 0.1392 0.3268 -0.62848 2012 9 17 56187 0.1390 0.3262 -0.62952 2012 9 18 56188 0.1388 0.3257 -0.63052 2012 9 19 56189 0.1386 0.3252 -0.63140 2012 9 20 56190 0.1383 0.3247 -0.63213 2012 9 21 56191 0.1381 0.3242 -0.63269 2012 9 22 56192 0.1379 0.3237 -0.63318 2012 9 23 56193 0.1376 0.3232 -0.63370 2012 9 24 56194 0.1373 0.3227 -0.63432 2012 9 25 56195 0.1370 0.3222 -0.63502 2012 9 26 56196 0.1367 0.3217 -0.63580 2012 9 27 56197 0.1364 0.3213 -0.63663 2012 9 28 56198 0.1361 0.3208 -0.63748 2012 9 29 56199 0.1357 0.3203 -0.63832 2012 9 30 56200 0.1354 0.3199 -0.63913 2012 10 1 56201 0.1350 0.3194 -0.63995 2012 10 2 56202 0.1346 0.3190 -0.64069 2012 10 3 56203 0.1342 0.3186 -0.64136 2012 10 4 56204 0.1338 0.3181 -0.64194 2012 10 5 56205 0.1334 0.3177 -0.64245 2012 10 6 56206 0.1330 0.3173 -0.64290 2012 10 7 56207 0.1326 0.3169 -0.64342 2012 10 8 56208 0.1321 0.3165 -0.64404 2012 10 9 56209 0.1317 0.3161 -0.64483 2012 10 10 56210 0.1312 0.3158 -0.64582 2012 10 11 56211 0.1307 0.3154 -0.64704 2012 10 12 56212 0.1302 0.3151 -0.64841 2012 10 13 56213 0.1297 0.3147 -0.64993 2012 10 14 56214 0.1292 0.3144 -0.65154 2012 10 15 56215 0.1287 0.3140 -0.65317 2012 10 16 56216 0.1282 0.3137 -0.65469 2012 10 17 56217 0.1277 0.3134 -0.65599 2012 10 18 56218 0.1271 0.3131 -0.65709 2012 10 19 56219 0.1266 0.3128 -0.65806 2012 10 20 56220 0.1260 0.3126 -0.65888 2012 10 21 56221 0.1255 0.3123 -0.65967 2012 10 22 56222 0.1249 0.3120 -0.66053 2012 10 23 56223 0.1243 0.3118 -0.66148 2012 10 24 56224 0.1237 0.3116 -0.66246 2012 10 25 56225 0.1231 0.3113 -0.66343 2012 10 26 56226 0.1225 0.3111 -0.66441 2012 10 27 56227 0.1219 0.3109 -0.66540 2012 10 28 56228 0.1213 0.3107 -0.66635 2012 10 29 56229 0.1207 0.3106 -0.66722 2012 10 30 56230 0.1201 0.3104 -0.66795 2012 10 31 56231 0.1194 0.3103 -0.66858 2012 11 1 56232 0.1188 0.3101 -0.66915 2012 11 2 56233 0.1182 0.3100 -0.66980 2012 11 3 56234 0.1175 0.3099 -0.67044 2012 11 4 56235 0.1169 0.3098 -0.67112 2012 11 5 56236 0.1162 0.3097 -0.67187 2012 11 6 56237 0.1156 0.3096 -0.67270 2012 11 7 56238 0.1149 0.3095 -0.67372 2012 11 8 56239 0.1143 0.3095 -0.67492 2012 11 9 56240 0.1136 0.3094 -0.67623 2012 11 10 56241 0.1130 0.3094 -0.67762 2012 11 11 56242 0.1123 0.3094 -0.67898 2012 11 12 56243 0.1116 0.3094 -0.68028 2012 11 13 56244 0.1110 0.3094 -0.68145 2012 11 14 56245 0.1103 0.3094 -0.68242 2012 11 15 56246 0.1096 0.3095 -0.68330 2012 11 16 56247 0.1090 0.3095 -0.68411 2012 11 17 56248 0.1083 0.3096 -0.68497 2012 11 18 56249 0.1076 0.3096 -0.68593 2012 11 19 56250 0.1070 0.3097 -0.68706 2012 11 20 56251 0.1063 0.3098 -0.68829 2012 11 21 56252 0.1056 0.3099 -0.68957 2012 11 22 56253 0.1050 0.3101 -0.69079 2012 11 23 56254 0.1043 0.3102 -0.69191 2012 11 24 56255 0.1037 0.3104 -0.69296 2012 11 25 56256 0.1030 0.3105 -0.69387 2012 11 26 56257 0.1024 0.3107 -0.69463 2012 11 27 56258 0.1017 0.3109 -0.69524 2012 11 28 56259 0.1011 0.3111 -0.69572 2012 11 29 56260 0.1004 0.3113 -0.69613 2012 11 30 56261 0.0998 0.3115 -0.69651 2012 12 1 56262 0.0992 0.3118 -0.69689 2012 12 2 56263 0.0985 0.3120 -0.69731 2012 12 3 56264 0.0979 0.3123 -0.69779 2012 12 4 56265 0.0973 0.3125 -0.69840 2012 12 5 56266 0.0967 0.3128 -0.69916 2012 12 6 56267 0.0961 0.3131 -0.70004 2012 12 7 56268 0.0955 0.3135 -0.70114 2012 12 8 56269 0.0949 0.3138 -0.70230 2012 12 9 56270 0.0943 0.3141 -0.70349 2012 12 10 56271 0.0937 0.3145 -0.70457 2012 12 11 56272 0.0932 0.3148 -0.70554 2012 12 12 56273 0.0926 0.3152 -0.70641 2012 12 13 56274 0.0920 0.3156 -0.70718 2012 12 14 56275 0.0915 0.3160 -0.70791 2012 12 15 56276 0.0910 0.3164 -0.70869 2012 12 16 56277 0.0904 0.3168 -0.70956 2012 12 17 56278 0.0899 0.3172 -0.71052 2012 12 18 56279 0.0894 0.3176 -0.71150 2012 12 19 56280 0.0889 0.3181 -0.71247 2012 12 20 56281 0.0884 0.3186 -0.71332 2012 12 21 56282 0.0879 0.3190 -0.71401 2012 12 22 56283 0.0875 0.3195 -0.71462 2012 12 23 56284 0.0870 0.3200 -0.71515 2012 12 24 56285 0.0865 0.3205 -0.71562 2012 12 25 56286 0.0861 0.3210 -0.71601 2012 12 26 56287 0.0857 0.3215 -0.71635 2012 12 27 56288 0.0853 0.3220 -0.71667 2012 12 28 56289 0.0849 0.3226 -0.71697 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) 55902 -71.77 0.22 -7.72 0.07 55903 -71.78 0.22 -7.71 0.07 55904 -71.78 0.22 -7.70 0.07 55905 -71.80 0.22 -7.64 0.08 55906 -71.73 0.12 -7.59 0.07 55907 -71.47 0.12 -7.61 0.07 55908 -71.10 0.30 -7.72 0.06 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55902 0.279 0.088 0.088 0.070 55903 0.293 0.088 0.063 0.070 55904 0.310 0.088 0.064 0.070 55905 0.323 0.088 0.089 0.080 55906 0.335 0.048 0.095 0.070 55907 0.347 0.048 0.090 0.070 55908 0.352 0.119 0.082 0.060 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 (2010).