********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 15 December 2011 Vol. XXIV No. 050 ______________________________________________________________________ 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 9 55904 0.15473 .00009 0.27905 .00009 -0.393919 0.000015 11 12 10 55905 0.15389 .00009 0.27833 .00009 -0.394456 0.000016 11 12 11 55906 0.15307 .00010 0.27779 .00009 -0.395031 0.000016 11 12 12 55907 0.15219 .00010 0.27716 .00009 -0.395612 0.000013 11 12 13 55908 0.15127 .00009 0.27654 .00009 -0.396278 0.000013 11 12 14 55909 0.14998 .00009 0.27603 .00009 -0.397139 0.000013 11 12 15 55910 0.14850 .00009 0.27548 .00009 -0.398171 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 = 0.0919 + 0.0213 cos A - 0.1184 sin A + 0.0367 cos C + 0.0435 sin C y = 0.3377 - 0.1076 cos A - 0.0249 sin A + 0.0435 cos C - 0.0367 sin C UT1-UTC = -0.4133 - 0.00084 (MJD - 55918) - (UT2-UT1) where A = 2*pi*(MJD-55910)/365.25 and C = 2*pi*(MJD-55910)/435. TAI-UTC(MJD 55911) = 34.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-55910)**0.80 S t = 0.00025 (MJD-55910)**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 16 55911 0.1470 0.2749 -0.39937 2011 12 17 55912 0.1457 0.2743 -0.40071 2011 12 18 55913 0.1445 0.2737 -0.40214 2011 12 19 55914 0.1433 0.2732 -0.40356 2011 12 20 55915 0.1421 0.2728 -0.40485 2011 12 21 55916 0.1409 0.2723 -0.40595 2011 12 22 55917 0.1397 0.2719 -0.40682 2011 12 23 55918 0.1384 0.2715 -0.40753 2011 12 24 55919 0.1372 0.2711 -0.40816 2011 12 25 55920 0.1360 0.2707 -0.40882 2011 12 26 55921 0.1348 0.2704 -0.40959 2011 12 27 55922 0.1336 0.2701 -0.41049 2011 12 28 55923 0.1323 0.2698 -0.41150 2011 12 29 55924 0.1311 0.2695 -0.41257 2011 12 30 55925 0.1299 0.2692 -0.41365 2011 12 31 55926 0.1287 0.2690 -0.41469 2012 1 1 55927 0.1275 0.2688 -0.41564 2012 1 2 55928 0.1263 0.2685 -0.41648 2012 1 3 55929 0.1251 0.2684 -0.41721 2012 1 4 55930 0.1239 0.2682 -0.41780 2012 1 5 55931 0.1227 0.2681 -0.41827 2012 1 6 55932 0.1215 0.2679 -0.41866 2012 1 7 55933 0.1203 0.2678 -0.41902 2012 1 8 55934 0.1191 0.2677 -0.41940 2012 1 9 55935 0.1179 0.2677 -0.41988 2012 1 10 55936 0.1168 0.2676 -0.42049 2012 1 11 55937 0.1156 0.2676 -0.42128 2012 1 12 55938 0.1144 0.2676 -0.42226 2012 1 13 55939 0.1132 0.2676 -0.42339 2012 1 14 55940 0.1121 0.2676 -0.42461 2012 1 15 55941 0.1109 0.2676 -0.42584 2012 1 16 55942 0.1098 0.2677 -0.42700 2012 1 17 55943 0.1086 0.2678 -0.42802 2012 1 18 55944 0.1075 0.2678 -0.42887 2012 1 19 55945 0.1064 0.2680 -0.42956 2012 1 20 55946 0.1053 0.2681 -0.43015 2012 1 21 55947 0.1042 0.2682 -0.43071 2012 1 22 55948 0.1030 0.2684 -0.43133 2012 1 23 55949 0.1020 0.2686 -0.43206 2012 1 24 55950 0.1009 0.2688 -0.43290 2012 1 25 55951 0.0998 0.2690 -0.43384 2012 1 26 55952 0.0987 0.2692 -0.43484 2012 1 27 55953 0.0977 0.2695 -0.43584 2012 1 28 55954 0.0966 0.2698 -0.43681 2012 1 29 55955 0.0956 0.2700 -0.43771 2012 1 30 55956 0.0946 0.2703 -0.43852 2012 1 31 55957 0.0935 0.2707 -0.43923 2012 2 1 55958 0.0925 0.2710 -0.43985 2012 2 2 55959 0.0915 0.2713 -0.44040 2012 2 3 55960 0.0906 0.2717 -0.44092 2012 2 4 55961 0.0896 0.2721 -0.44147 2012 2 5 55962 0.0886 0.2725 -0.44211 2012 2 6 55963 0.0877 0.2729 -0.44290 2012 2 7 55964 0.0868 0.2733 -0.44388 2012 2 8 55965 0.0858 0.2737 -0.44508 2012 2 9 55966 0.0849 0.2742 -0.44648 2012 2 10 55967 0.0840 0.2746 -0.44801 2012 2 11 55968 0.0832 0.2751 -0.44957 2012 2 12 55969 0.0823 0.2756 -0.45106 2012 2 13 55970 0.0815 0.2761 -0.45240 2012 2 14 55971 0.0806 0.2766 -0.45355 2012 2 15 55972 0.0798 0.2772 -0.45454 2012 2 16 55973 0.0790 0.2777 -0.45540 2012 2 17 55974 0.0782 0.2783 -0.45624 2012 2 18 55975 0.0774 0.2788 -0.45711 2012 2 19 55976 0.0767 0.2794 -0.45808 2012 2 20 55977 0.0759 0.2800 -0.45918 2012 2 21 55978 0.0752 0.2806 -0.46041 2012 2 22 55979 0.0745 0.2812 -0.46173 2012 2 23 55980 0.0738 0.2818 -0.46308 2012 2 24 55981 0.0731 0.2825 -0.46442 2012 2 25 55982 0.0724 0.2831 -0.46570 2012 2 26 55983 0.0718 0.2838 -0.46688 2012 2 27 55984 0.0711 0.2844 -0.46795 2012 2 28 55985 0.0705 0.2851 -0.46891 2012 2 29 55986 0.0699 0.2858 -0.46978 2012 3 1 55987 0.0693 0.2865 -0.47059 2012 3 2 55988 0.0688 0.2872 -0.47141 2012 3 3 55989 0.0682 0.2879 -0.47228 2012 3 4 55990 0.0677 0.2886 -0.47326 2012 3 5 55991 0.0672 0.2893 -0.47442 2012 3 6 55992 0.0667 0.2900 -0.47580 2012 3 7 55993 0.0662 0.2908 -0.47739 2012 3 8 55994 0.0657 0.2915 -0.47917 2012 3 9 55995 0.0653 0.2923 -0.48105 2012 3 10 55996 0.0648 0.2930 -0.48292 2012 3 11 55997 0.0644 0.2938 -0.48467 2012 3 12 55998 0.0640 0.2945 -0.48622 2012 3 13 55999 0.0637 0.2953 -0.48758 2012 3 14 56000 0.0633 0.2961 -0.48879 2012 3 15 56001 0.0630 0.2969 -0.48992 2012 3 16 56002 0.0626 0.2977 -0.49106 2012 3 17 56003 0.0623 0.2984 -0.49227 2012 3 18 56004 0.0621 0.2992 -0.49359 2012 3 19 56005 0.0618 0.3000 -0.49501 2012 3 20 56006 0.0615 0.3008 -0.49652 2012 3 21 56007 0.0613 0.3016 -0.49809 2012 3 22 56008 0.0611 0.3024 -0.49965 2012 3 23 56009 0.0609 0.3033 -0.50117 2012 3 24 56010 0.0607 0.3041 -0.50260 2012 3 25 56011 0.0605 0.3049 -0.50391 2012 3 26 56012 0.0604 0.3057 -0.50512 2012 3 27 56013 0.0603 0.3065 -0.50622 2012 3 28 56014 0.0602 0.3073 -0.50725 2012 3 29 56015 0.0601 0.3081 -0.50825 2012 3 30 56016 0.0600 0.3090 -0.50927 2012 3 31 56017 0.0599 0.3098 -0.51038 2012 4 1 56018 0.0599 0.3106 -0.51162 2012 4 2 56019 0.0599 0.3114 -0.51301 2012 4 3 56020 0.0599 0.3122 -0.51461 2012 4 4 56021 0.0599 0.3130 -0.51641 2012 4 5 56022 0.0599 0.3138 -0.51835 2012 4 6 56023 0.0600 0.3146 -0.52035 2012 4 7 56024 0.0600 0.3155 -0.52227 2012 4 8 56025 0.0601 0.3163 -0.52403 2012 4 9 56026 0.0602 0.3171 -0.52559 2012 4 10 56027 0.0603 0.3179 -0.52695 2012 4 11 56028 0.0605 0.3187 -0.52820 2012 4 12 56029 0.0606 0.3195 -0.52941 2012 4 13 56030 0.0608 0.3202 -0.53066 2012 4 14 56031 0.0609 0.3210 -0.53199 2012 4 15 56032 0.0611 0.3218 -0.53341 2012 4 16 56033 0.0613 0.3226 -0.53489 2012 4 17 56034 0.0616 0.3234 -0.53641 2012 4 18 56035 0.0618 0.3241 -0.53792 2012 4 19 56036 0.0621 0.3249 -0.53939 2012 4 20 56037 0.0623 0.3257 -0.54076 2012 4 21 56038 0.0626 0.3264 -0.54202 2012 4 22 56039 0.0629 0.3272 -0.54316 2012 4 23 56040 0.0632 0.3279 -0.54418 2012 4 24 56041 0.0636 0.3286 -0.54510 2012 4 25 56042 0.0639 0.3294 -0.54597 2012 4 26 56043 0.0643 0.3301 -0.54683 2012 4 27 56044 0.0646 0.3308 -0.54774 2012 4 28 56045 0.0650 0.3315 -0.54873 2012 4 29 56046 0.0654 0.3322 -0.54985 2012 4 30 56047 0.0658 0.3329 -0.55115 2012 5 1 56048 0.0662 0.3336 -0.55263 2012 5 2 56049 0.0667 0.3343 -0.55426 2012 5 3 56050 0.0671 0.3349 -0.55597 2012 5 4 56051 0.0676 0.3356 -0.55768 2012 5 5 56052 0.0680 0.3362 -0.55927 2012 5 6 56053 0.0685 0.3369 -0.56067 2012 5 7 56054 0.0690 0.3375 -0.56187 2012 5 8 56055 0.0695 0.3381 -0.56292 2012 5 9 56056 0.0700 0.3388 -0.56388 2012 5 10 56057 0.0706 0.3394 -0.56486 2012 5 11 56058 0.0711 0.3400 -0.56590 2012 5 12 56059 0.0717 0.3405 -0.56701 2012 5 13 56060 0.0722 0.3411 -0.56819 2012 5 14 56061 0.0728 0.3417 -0.56938 2012 5 15 56062 0.0734 0.3422 -0.57055 2012 5 16 56063 0.0739 0.3428 -0.57165 2012 5 17 56064 0.0745 0.3433 -0.57266 2012 5 18 56065 0.0751 0.3439 -0.57354 2012 5 19 56066 0.0757 0.3444 -0.57428 2012 5 20 56067 0.0764 0.3449 -0.57489 2012 5 21 56068 0.0770 0.3454 -0.57539 2012 5 22 56069 0.0776 0.3458 -0.57581 2012 5 23 56070 0.0783 0.3463 -0.57619 2012 5 24 56071 0.0789 0.3468 -0.57660 2012 5 25 56072 0.0796 0.3472 -0.57707 2012 5 26 56073 0.0802 0.3476 -0.57764 2012 5 27 56074 0.0809 0.3481 -0.57836 2012 5 28 56075 0.0816 0.3485 -0.57922 2012 5 29 56076 0.0822 0.3489 -0.58021 2012 5 30 56077 0.0829 0.3493 -0.58130 2012 5 31 56078 0.0836 0.3496 -0.58240 2012 6 1 56079 0.0843 0.3500 -0.58344 2012 6 2 56080 0.0850 0.3504 -0.58433 2012 6 3 56081 0.0857 0.3507 -0.58504 2012 6 4 56082 0.0864 0.3510 -0.58559 2012 6 5 56083 0.0871 0.3513 -0.58604 2012 6 6 56084 0.0878 0.3516 -0.58647 2012 6 7 56085 0.0885 0.3519 -0.58695 2012 6 8 56086 0.0892 0.3522 -0.58753 2012 6 9 56087 0.0899 0.3525 -0.58818 2012 6 10 56088 0.0907 0.3527 -0.58887 2012 6 11 56089 0.0914 0.3530 -0.58954 2012 6 12 56090 0.0921 0.3532 -0.59014 2012 6 13 56091 0.0928 0.3534 -0.59064 2012 6 14 56092 0.0935 0.3536 -0.59101 2012 6 15 56093 0.0943 0.3538 -0.59123 2012 6 16 56094 0.0950 0.3540 -0.59131 2012 6 17 56095 0.0957 0.3541 -0.59126 2012 6 18 56096 0.0964 0.3543 -0.59112 2012 6 19 56097 0.0971 0.3544 -0.59094 2012 6 20 56098 0.0979 0.3546 -0.59075 2012 6 21 56099 0.0986 0.3547 -0.59062 2012 6 22 56100 0.0993 0.3548 -0.59059 2012 6 23 56101 0.1000 0.3549 -0.59067 2012 6 24 56102 0.1007 0.3550 -0.59090 2012 6 25 56103 0.1014 0.3550 -0.59125 2012 6 26 56104 0.1021 0.3551 -0.59169 2012 6 27 56105 0.1028 0.3551 -0.59215 2012 6 28 56106 0.1035 0.3552 -0.59258 2012 6 29 56107 0.1042 0.3552 -0.59291 2012 6 30 56108 0.1049 0.3552 -0.59311 2012 7 1 56109 0.1056 0.3552 -0.59318 2012 7 2 56110 0.1063 0.3552 -0.59318 2012 7 3 56111 0.1070 0.3551 -0.59318 2012 7 4 56112 0.1076 0.3551 -0.59327 2012 7 5 56113 0.1083 0.3550 -0.59350 2012 7 6 56114 0.1090 0.3550 -0.59388 2012 7 7 56115 0.1096 0.3549 -0.59438 2012 7 8 56116 0.1103 0.3548 -0.59493 2012 7 9 56117 0.1109 0.3547 -0.59548 2012 7 10 56118 0.1116 0.3546 -0.59597 2012 7 11 56119 0.1122 0.3545 -0.59636 2012 7 12 56120 0.1128 0.3544 -0.59664 2012 7 13 56121 0.1134 0.3543 -0.59681 2012 7 14 56122 0.1140 0.3541 -0.59687 2012 7 15 56123 0.1146 0.3539 -0.59685 2012 7 16 56124 0.1152 0.3538 -0.59679 2012 7 17 56125 0.1158 0.3536 -0.59672 2012 7 18 56126 0.1164 0.3534 -0.59670 2012 7 19 56127 0.1170 0.3532 -0.59675 2012 7 20 56128 0.1175 0.3530 -0.59691 2012 7 21 56129 0.1181 0.3528 -0.59718 2012 7 22 56130 0.1186 0.3526 -0.59753 2012 7 23 56131 0.1191 0.3523 -0.59794 2012 7 24 56132 0.1197 0.3521 -0.59842 2012 7 25 56133 0.1202 0.3519 -0.59890 2012 7 26 56134 0.1207 0.3516 -0.59934 2012 7 27 56135 0.1212 0.3513 -0.59971 2012 7 28 56136 0.1217 0.3511 -0.59999 2012 7 29 56137 0.1221 0.3508 -0.60029 2012 7 30 56138 0.1226 0.3505 -0.60059 2012 7 31 56139 0.1230 0.3502 -0.60094 2012 8 1 56140 0.1235 0.3499 -0.60139 2012 8 2 56141 0.1239 0.3496 -0.60196 2012 8 3 56142 0.1243 0.3492 -0.60254 2012 8 4 56143 0.1247 0.3489 -0.60313 2012 8 5 56144 0.1251 0.3486 -0.60372 2012 8 6 56145 0.1255 0.3483 -0.60431 2012 8 7 56146 0.1259 0.3479 -0.60476 2012 8 8 56147 0.1262 0.3476 -0.60506 2012 8 9 56148 0.1266 0.3472 -0.60522 2012 8 10 56149 0.1269 0.3468 -0.60527 2012 8 11 56150 0.1272 0.3465 -0.60525 2012 8 12 56151 0.1275 0.3461 -0.60514 2012 8 13 56152 0.1278 0.3457 -0.60493 2012 8 14 56153 0.1281 0.3454 -0.60475 2012 8 15 56154 0.1284 0.3450 -0.60459 2012 8 16 56155 0.1287 0.3446 -0.60452 2012 8 17 56156 0.1289 0.3442 -0.60463 2012 8 18 56157 0.1291 0.3438 -0.60493 2012 8 19 56158 0.1293 0.3434 -0.60532 2012 8 20 56159 0.1296 0.3430 -0.60580 2012 8 21 56160 0.1298 0.3426 -0.60629 2012 8 22 56161 0.1299 0.3422 -0.60670 2012 8 23 56162 0.1301 0.3418 -0.60699 2012 8 24 56163 0.1303 0.3414 -0.60711 2012 8 25 56164 0.1304 0.3409 -0.60711 2012 8 26 56165 0.1305 0.3405 -0.60712 2012 8 27 56166 0.1306 0.3401 -0.60717 2012 8 28 56167 0.1307 0.3397 -0.60729 2012 8 29 56168 0.1308 0.3393 -0.60749 2012 8 30 56169 0.1309 0.3389 -0.60779 2012 8 31 56170 0.1310 0.3384 -0.60813 2012 9 1 56171 0.1310 0.3380 -0.60852 2012 9 2 56172 0.1310 0.3376 -0.60891 2012 9 3 56173 0.1311 0.3372 -0.60933 2012 9 4 56174 0.1311 0.3368 -0.60969 2012 9 5 56175 0.1311 0.3363 -0.60997 2012 9 6 56176 0.1311 0.3359 -0.61016 2012 9 7 56177 0.1310 0.3355 -0.61025 2012 9 8 56178 0.1310 0.3351 -0.61027 2012 9 9 56179 0.1309 0.3347 -0.61033 2012 9 10 56180 0.1309 0.3343 -0.61047 2012 9 11 56181 0.1308 0.3338 -0.61076 2012 9 12 56182 0.1307 0.3334 -0.61125 2012 9 13 56183 0.1306 0.3330 -0.61196 2012 9 14 56184 0.1305 0.3326 -0.61284 2012 9 15 56185 0.1303 0.3322 -0.61390 2012 9 16 56186 0.1302 0.3318 -0.61508 2012 9 17 56187 0.1300 0.3314 -0.61633 2012 9 18 56188 0.1298 0.3311 -0.61750 2012 9 19 56189 0.1297 0.3307 -0.61849 2012 9 20 56190 0.1295 0.3303 -0.61928 2012 9 21 56191 0.1293 0.3299 -0.61993 2012 9 22 56192 0.1290 0.3295 -0.62038 2012 9 23 56193 0.1288 0.3292 -0.62079 2012 9 24 56194 0.1286 0.3288 -0.62123 2012 9 25 56195 0.1283 0.3285 -0.62178 2012 9 26 56196 0.1281 0.3281 -0.62239 2012 9 27 56197 0.1278 0.3278 -0.62305 2012 9 28 56198 0.1275 0.3274 -0.62379 2012 9 29 56199 0.1272 0.3271 -0.62458 2012 9 30 56200 0.1269 0.3268 -0.62539 2012 10 1 56201 0.1266 0.3264 -0.62614 2012 10 2 56202 0.1262 0.3261 -0.62677 2012 10 3 56203 0.1259 0.3258 -0.62729 2012 10 4 56204 0.1256 0.3255 -0.62775 2012 10 5 56205 0.1252 0.3252 -0.62827 2012 10 6 56206 0.1248 0.3249 -0.62876 2012 10 7 56207 0.1244 0.3246 -0.62927 2012 10 8 56208 0.1241 0.3244 -0.62983 2012 10 9 56209 0.1237 0.3241 -0.63048 2012 10 10 56210 0.1233 0.3239 -0.63133 2012 10 11 56211 0.1228 0.3236 -0.63236 2012 10 12 56212 0.1224 0.3234 -0.63355 2012 10 13 56213 0.1220 0.3231 -0.63487 2012 10 14 56214 0.1216 0.3229 -0.63620 2012 10 15 56215 0.1211 0.3227 -0.63752 2012 10 16 56216 0.1207 0.3225 -0.63873 2012 10 17 56217 0.1202 0.3223 -0.63975 2012 10 18 56218 0.1197 0.3221 -0.64065 2012 10 19 56219 0.1193 0.3219 -0.64146 2012 10 20 56220 0.1188 0.3218 -0.64227 2012 10 21 56221 0.1183 0.3216 -0.64315 2012 10 22 56222 0.1178 0.3215 -0.64418 2012 10 23 56223 0.1173 0.3213 -0.64534 2012 10 24 56224 0.1168 0.3212 -0.64659 2012 10 25 56225 0.1163 0.3211 -0.64785 2012 10 26 56226 0.1158 0.3210 -0.64907 2012 10 27 56227 0.1152 0.3209 -0.65027 2012 10 28 56228 0.1147 0.3208 -0.65136 2012 10 29 56229 0.1142 0.3207 -0.65233 2012 10 30 56230 0.1136 0.3206 -0.65314 2012 10 31 56231 0.1131 0.3206 -0.65382 2012 11 1 56232 0.1126 0.3205 -0.65442 2012 11 2 56233 0.1120 0.3205 -0.65495 2012 11 3 56234 0.1115 0.3205 -0.65546 2012 11 4 56235 0.1109 0.3205 -0.65598 2012 11 5 56236 0.1104 0.3205 -0.65655 2012 11 6 56237 0.1098 0.3205 -0.65725 2012 11 7 56238 0.1093 0.3205 -0.65810 2012 11 8 56239 0.1087 0.3205 -0.65911 2012 11 9 56240 0.1081 0.3206 -0.66038 2012 11 10 56241 0.1076 0.3206 -0.66176 2012 11 11 56242 0.1070 0.3207 -0.66323 2012 11 12 56243 0.1065 0.3208 -0.66461 2012 11 13 56244 0.1059 0.3208 -0.66590 2012 11 14 56245 0.1053 0.3209 -0.66706 2012 11 15 56246 0.1048 0.3211 -0.66808 2012 11 16 56247 0.1042 0.3212 -0.66900 2012 11 17 56248 0.1037 0.3213 -0.66991 2012 11 18 56249 0.1031 0.3214 -0.67088 2012 11 19 56250 0.1025 0.3216 -0.67192 2012 11 20 56251 0.1020 0.3218 -0.67301 2012 11 21 56252 0.1014 0.3219 -0.67411 2012 11 22 56253 0.1009 0.3221 -0.67514 2012 11 23 56254 0.1003 0.3223 -0.67606 2012 11 24 56255 0.0998 0.3225 -0.67693 2012 11 25 56256 0.0993 0.3228 -0.67773 2012 11 26 56257 0.0987 0.3230 -0.67849 2012 11 27 56258 0.0982 0.3232 -0.67915 2012 11 28 56259 0.0977 0.3235 -0.67973 2012 11 29 56260 0.0971 0.3238 -0.68026 2012 11 30 56261 0.0966 0.3240 -0.68073 2012 12 1 56262 0.0961 0.3243 -0.68123 2012 12 2 56263 0.0956 0.3246 -0.68173 2012 12 3 56264 0.0951 0.3249 -0.68227 2012 12 4 56265 0.0946 0.3253 -0.68287 2012 12 5 56266 0.0941 0.3256 -0.68360 2012 12 6 56267 0.0936 0.3259 -0.68443 2012 12 7 56268 0.0931 0.3263 -0.68539 2012 12 8 56269 0.0927 0.3266 -0.68643 2012 12 9 56270 0.0922 0.3270 -0.68745 2012 12 10 56271 0.0917 0.3274 -0.68844 2012 12 11 56272 0.0913 0.3278 -0.68934 2012 12 12 56273 0.0908 0.3282 -0.69016 2012 12 13 56274 0.0904 0.3286 -0.69086 2012 12 14 56275 0.0900 0.3290 -0.69152 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) 55889 -72.88 0.13 -8.34 0.08 55890 -72.40 0.13 -8.48 0.08 55891 -72.16 0.36 -8.36 0.04 55892 -72.27 0.30 -8.07 0.05 55893 -72.38 0.30 -7.89 0.05 55894 -72.18 0.30 -7.96 0.05 55895 -71.81 0.30 -8.14 0.05 55896 -71.62 0.30 -8.22 0.05 55897 -71.70 0.30 -8.16 0.05 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 55889 0.151 0.052 0.041 0.080 55890 0.142 0.052 0.043 0.080 55891 0.156 0.143 0.029 0.040 55892 0.179 0.119 0.026 0.050 55893 0.194 0.119 0.049 0.050 55894 0.195 0.119 0.066 0.050 55895 0.198 0.119 0.056 0.050 55896 0.210 0.119 0.054 0.050 55897 0.216 0.119 0.087 0.050 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).