********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 5 October 2006 Vol. XIX No. 040 ______________________________________________________________________ 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 = +0.1 seconds beginning 28 September 2006 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * No leap second will be introduced into UTC on December 31, 2006. * * Last positive leap second introduced in UTC on December 31, 2005. * * * * See notice at the end of this Bulletin A for more details. * ********************************************************************** ________________________________________________________________________ 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 6 9 29 54007 .03755 .00003 .25191 .00002 .148230 .000016 6 9 30 54008 .03513 .00003 .25205 .00002 .147599 .000016 6 10 1 54009 .03272 .00004 .25227 .00002 .146864 .000017 6 10 2 54010 .03041 .00003 .25248 .00002 .146012 .000019 6 10 3 54011 .02843 .00003 .25270 .00002 .144879 .000018 6 10 4 54012 .02708 .00003 .25304 .00002 .143422 .000018 6 10 5 54013 .02610 .00003 .25357 .00002 .141573 .000019 IERS Final Values MJD x y UT1-UTC " " s 6 8 3 53950 .1103 .2697 .18059 6 8 4 53951 .1094 .2687 .18050 6 8 5 53952 .1089 .2675 .18058 6 8 6 53953 .1086 .2662 .18072 6 8 7 53954 .1084 .2650 .18090 6 8 8 53955 .1085 .2639 .18099 6 8 9 53956 .1085 .2632 .18084 6 8 10 53957 .1079 .2625 .18033 6 8 11 53958 .1070 .2615 .17949 6 8 12 53959 .1060 .2606 .17845 6 8 13 53960 .1052 .2598 .17732 6 8 14 53961 .1045 .2591 .17636 6 8 15 53962 .1035 .2587 .17565 6 8 16 53963 .1022 .2584 .17522 6 8 17 53964 .1007 .2578 .17505 6 8 18 53965 .0995 .2571 .17509 6 8 19 53966 .0982 .2563 .17526 6 8 20 53967 .0967 .2556 .17544 6 8 21 53968 .0952 .2552 .17548 6 8 22 53969 .0941 .2550 .17534 6 8 23 53970 .0930 .2547 .17504 6 8 24 53971 .0917 .2541 .17453 6 8 25 53972 .0906 .2538 .17388 6 8 26 53973 .0897 .2538 .17317 6 8 27 53974 .0886 .2539 .17248 6 8 28 53975 .0872 .2540 .17175 6 8 29 53976 .0859 .2539 .17112 6 8 30 53977 .0846 .2539 .17064 6 8 31 53978 .0835 .2539 .17033 6 9 1 53979 .0825 .2539 .17019 _______________________________________________________________________ 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 = .0519 + .1371 cos A - .0730 sin A - .1704 cos C - .0482 sin C y = .3571 - .0587 cos A - .1242 sin A - .0482 cos C + .1704 sin C UT1-UTC = .0790 - .00070 (MJD - 54018) - (UT2-UT1) where A = 2*pi*(MJD-54013)/365.25 and C = 2*pi*(MJD-54013)/435. TAI-UTC(MJD 54014) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54013)**0.80 S t = 0.00025 (MJD-54013)**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) 2006 10 6 54014 0.0250 0.2541 0.13935 2006 10 7 54015 0.0239 0.2546 0.13701 2006 10 8 54016 0.0226 0.2550 0.13478 2006 10 9 54017 0.0212 0.2554 0.13282 2006 10 10 54018 0.0197 0.2558 0.13119 2006 10 11 54019 0.0181 0.2562 0.12988 2006 10 12 54020 0.0164 0.2566 0.12878 2006 10 13 54021 0.0147 0.2569 0.12781 2006 10 14 54022 0.0129 0.2573 0.12687 2006 10 15 54023 0.0111 0.2578 0.12584 2006 10 16 54024 0.0091 0.2582 0.12465 2006 10 17 54025 0.0072 0.2586 0.12332 2006 10 18 54026 0.0052 0.2591 0.12187 2006 10 19 54027 0.0032 0.2596 0.12034 2006 10 20 54028 0.0011 0.2601 0.11877 2006 10 21 54029 -0.0010 0.2607 0.11723 2006 10 22 54030 -0.0031 0.2612 0.11577 2006 10 23 54031 -0.0052 0.2618 0.11446 2006 10 24 54032 -0.0074 0.2625 0.11329 2006 10 25 54033 -0.0096 0.2631 0.11230 2006 10 26 54034 -0.0117 0.2638 0.11145 2006 10 27 54035 -0.0139 0.2645 0.11069 2006 10 28 54036 -0.0161 0.2653 0.10993 2006 10 29 54037 -0.0184 0.2660 0.10906 2006 10 30 54038 -0.0206 0.2668 0.10798 2006 10 31 54039 -0.0228 0.2677 0.10661 2006 11 1 54040 -0.0250 0.2685 0.10492 2006 11 2 54041 -0.0272 0.2694 0.10297 2006 11 3 54042 -0.0294 0.2703 0.10089 2006 11 4 54043 -0.0316 0.2713 0.09885 2006 11 5 54044 -0.0338 0.2723 0.09703 2006 11 6 54045 -0.0360 0.2733 0.09552 2006 11 7 54046 -0.0382 0.2743 0.09434 2006 11 8 54047 -0.0403 0.2754 0.09341 2006 11 9 54048 -0.0425 0.2765 0.09261 2006 11 10 54049 -0.0446 0.2776 0.09181 2006 11 11 54050 -0.0468 0.2788 0.09090 2006 11 12 54051 -0.0489 0.2800 0.08985 2006 11 13 54052 -0.0510 0.2812 0.08861 2006 11 14 54053 -0.0531 0.2825 0.08722 2006 11 15 54054 -0.0551 0.2837 0.08572 2006 11 16 54055 -0.0572 0.2851 0.08416 2006 11 17 54056 -0.0592 0.2864 0.08260 2006 11 18 54057 -0.0612 0.2878 0.08111 2006 11 19 54058 -0.0631 0.2892 0.07974 2006 11 20 54059 -0.0651 0.2906 0.07853 2006 11 21 54060 -0.0670 0.2920 0.07749 2006 11 22 54061 -0.0689 0.2935 0.07661 2006 11 23 54062 -0.0708 0.2950 0.07582 2006 11 24 54063 -0.0727 0.2965 0.07507 2006 11 25 54064 -0.0745 0.2981 0.07422 2006 11 26 54065 -0.0763 0.2997 0.07319 2006 11 27 54066 -0.0780 0.3013 0.07189 2006 11 28 54067 -0.0798 0.3029 0.07029 2006 11 29 54068 -0.0815 0.3046 0.06844 2006 11 30 54069 -0.0832 0.3063 0.06643 2006 12 1 54070 -0.0848 0.3080 0.06441 2006 12 2 54071 -0.0864 0.3098 0.06255 2006 12 3 54072 -0.0880 0.3116 0.06095 2006 12 4 54073 -0.0895 0.3134 0.05967 2006 12 5 54074 -0.0910 0.3152 0.05867 2006 12 6 54075 -0.0925 0.3170 0.05786 2006 12 7 54076 -0.0939 0.3189 0.05711 2006 12 8 54077 -0.0953 0.3208 0.05631 2006 12 9 54078 -0.0967 0.3227 0.05539 2006 12 10 54079 -0.0980 0.3247 0.05432 2006 12 11 54080 -0.0993 0.3266 0.05310 2006 12 12 54081 -0.1005 0.3286 0.05178 2006 12 13 54082 -0.1017 0.3306 0.05039 2006 12 14 54083 -0.1029 0.3327 0.04901 2006 12 15 54084 -0.1040 0.3347 0.04768 2006 12 16 54085 -0.1051 0.3368 0.04648 2006 12 17 54086 -0.1061 0.3389 0.04543 2006 12 18 54087 -0.1071 0.3410 0.04456 2006 12 19 54088 -0.1081 0.3431 0.04387 2006 12 20 54089 -0.1090 0.3453 0.04330 2006 12 21 54090 -0.1098 0.3475 0.04279 2006 12 22 54091 -0.1107 0.3497 0.04222 2006 12 23 54092 -0.1114 0.3519 0.04148 2006 12 24 54093 -0.1122 0.3541 0.04048 2006 12 25 54094 -0.1128 0.3563 0.03920 2006 12 26 54095 -0.1135 0.3586 0.03768 2006 12 27 54096 -0.1140 0.3609 0.03602 2006 12 28 54097 -0.1146 0.3631 0.03434 2006 12 29 54098 -0.1151 0.3654 0.03279 2006 12 30 54099 -0.1155 0.3677 0.03147 2006 12 31 54100 -0.1159 0.3701 0.03045 2007 1 1 54101 -0.1163 0.3724 0.02970 2007 1 2 54102 -0.1165 0.3747 0.02914 2007 1 3 54103 -0.1168 0.3771 0.02867 2007 1 4 54104 -0.1170 0.3795 0.02817 2007 1 5 54105 -0.1171 0.3818 0.02755 2007 1 6 54106 -0.1172 0.3842 0.02676 2007 1 7 54107 -0.1173 0.3866 0.02581 2007 1 8 54108 -0.1173 0.3890 0.02472 2007 1 9 54109 -0.1172 0.3914 0.02356 2007 1 10 54110 -0.1173 0.3938 0.02237 2007 1 11 54111 -0.1171 0.3962 0.02124 2007 1 12 54112 -0.1169 0.3987 0.02021 2007 1 13 54113 -0.1166 0.4011 0.01933 2007 1 14 54114 -0.1163 0.4035 0.01862 2007 1 15 54115 -0.1160 0.4059 0.01809 2007 1 16 54116 -0.1155 0.4084 0.01769 2007 1 17 54117 -0.1151 0.4108 0.01736 2007 1 18 54118 -0.1146 0.4132 0.01701 2007 1 19 54119 -0.1140 0.4157 0.01644 2007 1 20 54120 -0.1134 0.4181 0.01563 2007 1 21 54121 -0.1127 0.4205 0.01451 2007 1 22 54122 -0.1120 0.4229 0.01311 2007 1 23 54123 -0.1112 0.4253 0.01152 2007 1 24 54124 -0.1104 0.4278 0.00989 2007 1 25 54125 -0.1095 0.4302 0.00838 2007 1 26 54126 -0.1086 0.4326 0.00711 2007 1 27 54127 -0.1076 0.4349 0.00613 2007 1 28 54128 -0.1066 0.4373 0.00542 2007 1 29 54129 -0.1056 0.4397 0.00492 2007 1 30 54130 -0.1044 0.4421 0.00451 2007 1 31 54131 -0.1033 0.4444 0.00409 2007 2 1 54132 -0.1021 0.4468 0.00355 2007 2 2 54133 -0.1008 0.4491 0.00284 2007 2 3 54134 -0.0995 0.4514 0.00194 2007 2 4 54135 -0.0982 0.4537 0.00086 2007 2 5 54136 -0.0968 0.4560 -0.00033 2007 2 6 54137 -0.0953 0.4583 -0.00158 2007 2 7 54138 -0.0938 0.4605 -0.00282 2007 2 8 54139 -0.0923 0.4628 -0.00398 2007 2 9 54140 -0.0907 0.4650 -0.00501 2007 2 10 54141 -0.0891 0.4672 -0.00589 2007 2 11 54142 -0.0874 0.4694 -0.00661 2007 2 12 54143 -0.0857 0.4715 -0.00718 2007 2 13 54144 -0.0839 0.4737 -0.00767 2007 2 14 54145 -0.0821 0.4758 -0.00815 2007 2 15 54146 -0.0803 0.4779 -0.00874 2007 2 16 54147 -0.0784 0.4800 -0.00956 2007 2 17 54148 -0.0765 0.4820 -0.01070 2007 2 18 54149 -0.0745 0.4840 -0.01218 2007 2 19 54150 -0.0725 0.4860 -0.01393 2007 2 20 54151 -0.0705 0.4880 -0.01579 2007 2 21 54152 -0.0684 0.4899 -0.01760 2007 2 22 54153 -0.0663 0.4919 -0.01918 2007 2 23 54154 -0.0641 0.4938 -0.02046 2007 2 24 54155 -0.0619 0.4956 -0.02142 2007 2 25 54156 -0.0597 0.4974 -0.02215 2007 2 26 54157 -0.0574 0.4992 -0.02275 2007 2 27 54158 -0.0551 0.5010 -0.02335 2007 2 28 54159 -0.0528 0.5027 -0.02404 2007 3 1 54160 -0.0504 0.5044 -0.02490 2007 3 2 54161 -0.0480 0.5061 -0.02594 2007 3 3 54162 -0.0456 0.5078 -0.02717 2007 3 4 54163 -0.0431 0.5094 -0.02854 2007 3 5 54164 -0.0406 0.5109 -0.02999 2007 3 6 54165 -0.0381 0.5125 -0.03145 2007 3 7 54166 -0.0355 0.5139 -0.03285 2007 3 8 54167 -0.0330 0.5154 -0.03413 2007 3 9 54168 -0.0303 0.5168 -0.03526 2007 3 10 54169 -0.0277 0.5182 -0.03622 2007 3 11 54170 -0.0251 0.5196 -0.03702 2007 3 12 54171 -0.0224 0.5209 -0.03772 2007 3 13 54172 -0.0197 0.5221 -0.03838 2007 3 14 54173 -0.0169 0.5233 -0.03910 2007 3 15 54174 -0.0142 0.5245 -0.03999 2007 3 16 54175 -0.0114 0.5257 -0.04117 2007 3 17 54176 -0.0086 0.5268 -0.04269 2007 3 18 54177 -0.0058 0.5278 -0.04454 2007 3 19 54178 -0.0029 0.5289 -0.04660 2007 3 20 54179 -0.0001 0.5298 -0.04870 2007 3 21 54180 0.0028 0.5308 -0.05065 2007 3 22 54181 0.0057 0.5317 -0.05229 2007 3 23 54182 0.0086 0.5325 -0.05359 2007 3 24 54183 0.0115 0.5333 -0.05460 2007 3 25 54184 0.0145 0.5341 -0.05542 2007 3 26 54185 0.0174 0.5348 -0.05620 2007 3 27 54186 0.0204 0.5354 -0.05705 2007 3 28 54187 0.0234 0.5361 -0.05805 2007 3 29 54188 0.0264 0.5366 -0.05923 2007 3 30 54189 0.0294 0.5372 -0.06060 2007 3 31 54190 0.0324 0.5376 -0.06214 2007 4 1 54191 0.0354 0.5381 -0.06378 2007 4 2 54192 0.0385 0.5385 -0.06547 2007 4 3 54193 0.0415 0.5388 -0.06714 2007 4 4 54194 0.0446 0.5391 -0.06873 2007 4 5 54195 0.0476 0.5394 -0.07021 2007 4 6 54196 0.0507 0.5396 -0.07156 2007 4 7 54197 0.0538 0.5397 -0.07277 2007 4 8 54198 0.0568 0.5398 -0.07389 2007 4 9 54199 0.0599 0.5399 -0.07495 2007 4 10 54200 0.0630 0.5399 -0.07603 2007 4 11 54201 0.0661 0.5399 -0.07720 2007 4 12 54202 0.0691 0.5398 -0.07855 2007 4 13 54203 0.0722 0.5396 -0.08015 2007 4 14 54204 0.0753 0.5395 -0.08199 2007 4 15 54205 0.0784 0.5393 -0.08402 2007 4 16 54206 0.0814 0.5390 -0.08609 2007 4 17 54207 0.0845 0.5387 -0.08802 2007 4 18 54208 0.0876 0.5384 -0.08963 2007 4 19 54209 0.0907 0.5380 -0.09083 2007 4 20 54210 0.0937 0.5375 -0.09165 2007 4 21 54211 0.0968 0.5370 -0.09219 2007 4 22 54212 0.0998 0.5365 -0.09260 2007 4 23 54213 0.1029 0.5359 -0.09304 2007 4 24 54214 0.1059 0.5353 -0.09360 2007 4 25 54215 0.1089 0.5346 -0.09433 2007 4 26 54216 0.1119 0.5338 -0.09522 2007 4 27 54217 0.1150 0.5331 -0.09624 2007 4 28 54218 0.1180 0.5322 -0.09732 2007 4 29 54219 0.1210 0.5314 -0.09838 2007 4 30 54220 0.1239 0.5304 -0.09936 2007 5 1 54221 0.1269 0.5295 -0.10018 2007 5 2 54222 0.1299 0.5285 -0.10080 2007 5 3 54223 0.1328 0.5274 -0.10118 2007 5 4 54224 0.1357 0.5263 -0.10133 2007 5 5 54225 0.1387 0.5252 -0.10129 2007 5 6 54226 0.1416 0.5240 -0.10111 2007 5 7 54227 0.1445 0.5227 -0.10090 2007 5 8 54228 0.1473 0.5214 -0.10076 2007 5 9 54229 0.1502 0.5201 -0.10078 2007 5 10 54230 0.1530 0.5187 -0.10103 2007 5 11 54231 0.1558 0.5173 -0.10155 2007 5 12 54232 0.1587 0.5159 -0.10239 2007 5 13 54233 0.1614 0.5144 -0.10349 2007 5 14 54234 0.1642 0.5128 -0.10469 2007 5 15 54235 0.1670 0.5112 -0.10581 2007 5 16 54236 0.1697 0.5096 -0.10674 2007 5 17 54237 0.1724 0.5079 -0.10739 2007 5 18 54238 0.1751 0.5062 -0.10778 2007 5 19 54239 0.1777 0.5045 -0.10797 2007 5 20 54240 0.1804 0.5027 -0.10811 2007 5 21 54241 0.1830 0.5008 -0.10837 2007 5 22 54242 0.1856 0.4990 -0.10870 2007 5 23 54243 0.1882 0.4971 -0.10916 2007 5 24 54244 0.1907 0.4951 -0.10971 2007 5 25 54245 0.1933 0.4931 -0.11028 2007 5 26 54246 0.1958 0.4911 -0.11087 2007 5 27 54247 0.1982 0.4890 -0.11139 2007 5 28 54248 0.2007 0.4869 -0.11180 2007 5 29 54249 0.2031 0.4848 -0.11210 2007 5 30 54250 0.2055 0.4826 -0.11226 2007 5 31 54251 0.2079 0.4804 -0.11225 2007 6 1 54252 0.2102 0.4782 -0.11203 2007 6 2 54253 0.2125 0.4759 -0.11167 2007 6 3 54254 0.2148 0.4736 -0.11122 2007 6 4 54255 0.2170 0.4712 -0.11078 2007 6 5 54256 0.2192 0.4689 -0.11053 2007 6 6 54257 0.2214 0.4665 -0.11058 2007 6 7 54258 0.2236 0.4640 -0.11094 2007 6 8 54259 0.2257 0.4616 -0.11156 2007 6 9 54260 0.2278 0.4591 -0.11234 2007 6 10 54261 0.2299 0.4565 -0.11320 2007 6 11 54262 0.2319 0.4540 -0.11394 2007 6 12 54263 0.2339 0.4514 -0.11443 2007 6 13 54264 0.2359 0.4488 -0.11463 2007 6 14 54265 0.2378 0.4461 -0.11454 2007 6 15 54266 0.2397 0.4435 -0.11422 2007 6 16 54267 0.2416 0.4408 -0.11384 2007 6 17 54268 0.2434 0.4380 -0.11343 2007 6 18 54269 0.2452 0.4353 -0.11314 2007 6 19 54270 0.2469 0.4325 -0.11304 2007 6 20 54271 0.2486 0.4297 -0.11307 2007 6 21 54272 0.2503 0.4269 -0.11324 2007 6 22 54273 0.2519 0.4240 -0.11350 2007 6 23 54274 0.2535 0.4212 -0.11377 2007 6 24 54275 0.2551 0.4183 -0.11395 2007 6 25 54276 0.2566 0.4154 -0.11390 2007 6 26 54277 0.2581 0.4124 -0.11357 2007 6 27 54278 0.2595 0.4095 -0.11296 2007 6 28 54279 0.2609 0.4065 -0.11212 2007 6 29 54280 0.2623 0.4035 -0.11110 2007 6 30 54281 0.2636 0.4005 -0.10995 2007 7 1 54282 0.2649 0.3975 -0.10879 2007 7 2 54283 0.2661 0.3945 -0.10780 2007 7 3 54284 0.2673 0.3914 -0.10694 2007 7 4 54285 0.2685 0.3883 -0.10633 2007 7 5 54286 0.2696 0.3853 -0.10603 2007 7 6 54287 0.2706 0.3822 -0.10596 2007 7 7 54288 0.2717 0.3790 -0.10591 2007 7 8 54289 0.2726 0.3759 -0.10578 2007 7 9 54290 0.2736 0.3728 -0.10549 2007 7 10 54291 0.2744 0.3696 -0.10492 2007 7 11 54292 0.2753 0.3665 -0.10411 2007 7 12 54293 0.2761 0.3633 -0.10306 2007 7 13 54294 0.2768 0.3601 -0.10189 2007 7 14 54295 0.2775 0.3569 -0.10072 2007 7 15 54296 0.2782 0.3537 -0.09964 2007 7 16 54297 0.2788 0.3505 -0.09872 2007 7 17 54298 0.2793 0.3473 -0.09803 2007 7 18 54299 0.2798 0.3441 -0.09755 2007 7 19 54300 0.2803 0.3408 -0.09719 2007 7 20 54301 0.2807 0.3376 -0.09688 2007 7 21 54302 0.2810 0.3344 -0.09650 2007 7 22 54303 0.2813 0.3311 -0.09601 2007 7 23 54304 0.2816 0.3279 -0.09546 2007 7 24 54305 0.2818 0.3246 -0.09472 2007 7 25 54306 0.2819 0.3214 -0.09387 2007 7 26 54307 0.2820 0.3182 -0.09289 2007 7 27 54308 0.2821 0.3149 -0.09185 2007 7 28 54309 0.2821 0.3117 -0.09085 2007 7 29 54310 0.2820 0.3084 -0.08998 2007 7 30 54311 0.2819 0.3052 -0.08932 2007 7 31 54312 0.2817 0.3019 -0.08894 2007 8 1 54313 0.2815 0.2987 -0.08880 2007 8 2 54314 0.2812 0.2954 -0.08888 2007 8 3 54315 0.2809 0.2922 -0.08908 2007 8 4 54316 0.2805 0.2890 -0.08922 2007 8 5 54317 0.2801 0.2858 -0.08917 2007 8 6 54318 0.2796 0.2825 -0.08878 2007 8 7 54319 0.2790 0.2793 -0.08812 2007 8 8 54320 0.2784 0.2761 -0.08720 2007 8 9 54321 0.2778 0.2729 -0.08607 2007 8 10 54322 0.2771 0.2697 -0.08487 2007 8 11 54323 0.2763 0.2666 -0.08377 2007 8 12 54324 0.2755 0.2634 -0.08286 2007 8 13 54325 0.2746 0.2603 -0.08214 2007 8 14 54326 0.2737 0.2571 -0.08167 2007 8 15 54327 0.2727 0.2540 -0.08129 2007 8 16 54328 0.2716 0.2509 -0.08103 2007 8 17 54329 0.2705 0.2478 -0.08087 2007 8 18 54330 0.2693 0.2447 -0.08060 2007 8 19 54331 0.2681 0.2416 -0.08017 2007 8 20 54332 0.2668 0.2386 -0.07957 2007 8 21 54333 0.2655 0.2355 -0.07881 2007 8 22 54334 0.2641 0.2325 -0.07796 2007 8 23 54335 0.2626 0.2295 -0.07708 2007 8 24 54336 0.2611 0.2265 -0.07623 2007 8 25 54337 0.2596 0.2236 -0.07548 2007 8 26 54338 0.2579 0.2206 -0.07493 2007 8 27 54339 0.2563 0.2177 -0.07469 2007 8 28 54340 0.2545 0.2148 -0.07480 2007 8 29 54341 0.2527 0.2119 -0.07525 2007 8 30 54342 0.2509 0.2091 -0.07586 2007 8 31 54343 0.2490 0.2063 -0.07646 2007 9 1 54344 0.2470 0.2035 -0.07684 2007 9 2 54345 0.2450 0.2007 -0.07701 2007 9 3 54346 0.2429 0.1979 -0.07689 2007 9 4 54347 0.2407 0.1952 -0.07650 2007 9 5 54348 0.2385 0.1925 -0.07597 2007 9 6 54349 0.2363 0.1898 -0.07543 2007 9 7 54350 0.2340 0.1872 -0.07498 2007 9 8 54351 0.2316 0.1846 -0.07471 2007 9 9 54352 0.2292 0.1820 -0.07465 2007 9 10 54353 0.2267 0.1795 -0.07475 2007 9 11 54354 0.2242 0.1769 -0.07488 2007 9 12 54355 0.2216 0.1745 -0.07508 2007 9 13 54356 0.2190 0.1720 -0.07526 2007 9 14 54357 0.2163 0.1696 -0.07541 2007 9 15 54358 0.2136 0.1672 -0.07540 2007 9 16 54359 0.2108 0.1649 -0.07533 2007 9 17 54360 0.2080 0.1626 -0.07509 2007 9 18 54361 0.2051 0.1603 -0.07472 2007 9 19 54362 0.2021 0.1580 -0.07427 2007 9 20 54363 0.1991 0.1558 -0.07379 2007 9 21 54364 0.1961 0.1537 -0.07334 2007 9 22 54365 0.1930 0.1516 -0.07297 2007 9 23 54366 0.1898 0.1495 -0.07285 2007 9 24 54367 0.1866 0.1474 -0.07300 2007 9 25 54368 0.1834 0.1454 -0.07352 2007 9 26 54369 0.1801 0.1435 -0.07438 2007 9 27 54370 0.1768 0.1416 -0.07536 2007 9 28 54371 0.1734 0.1397 -0.07630 2007 9 29 54372 0.1700 0.1379 -0.07702 2007 9 30 54373 0.1665 0.1361 -0.07740 2007 10 1 54374 0.1630 0.1344 -0.07744 2007 10 2 54375 0.1594 0.1327 -0.07724 2007 10 3 54376 0.1558 0.1310 -0.07688 2007 10 4 54377 0.1522 0.1295 -0.07654 2007 10 5 54378 0.1485 0.1279 -0.07635 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) 53994 -67.15 .43 -5.84 .34 53995 -66.84 .33 -5.73 .34 53996 -66.56 .33 -5.52 .34 53997 -66.25 .74 -5.30 .34 53998 -65.97 .23 -4.99 .34 53999 -65.82 .23 -4.58 .34 54000 -65.78 .23 -4.24 .34 IERS Celestial Pole Offset Final Series MJD dpsi deps (msec. of arc) 53950 -64.7 -6.0 53951 -65.1 -6.2 53952 -65.2 -6.3 53953 -65.1 -6.2 53954 -64.9 -6.0 53955 -64.6 -5.9 53956 -64.5 -5.8 53957 -64.6 -5.7 53958 -64.9 -5.6 53959 -65.2 -5.5 53960 -65.6 -5.4 53961 -65.8 -5.3 53962 -66.1 -5.3 53963 -66.3 -5.4 53964 -66.4 -5.7 53965 -66.4 -6.0 53966 -66.4 -6.3 53967 -66.3 -6.4 53968 -66.2 -6.4 53969 -66.0 -6.2 53970 -65.9 -5.7 53971 -65.8 -5.3 53972 -65.8 -4.9 53973 -65.8 -4.7 53974 -65.9 -4.8 53975 -66.0 -5.0 53976 -66.2 -5.4 53977 -66.3 -5.7 53978 -66.5 -6.1 53979 -66.5 -6.2 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53994 -0.054 0.171 -0.070 0.340 53995 -0.033 0.131 -0.052 0.340 53996 -0.026 0.131 -0.026 0.340 53997 -0.021 0.294 -0.026 0.340 53998 -0.021 0.091 -0.033 0.340 53999 -0.040 0.091 -0.034 0.340 54000 -0.061 0.091 -0.023 0.340 IAU2000A Celestial Pole Offset Final Series MJD dX dY (msec. of arc) 53950 -0.02 -0.41 53951 -0.00 -0.30 53952 -0.02 -0.32 53953 -0.08 -0.35 53954 -0.12 -0.31 53955 -0.09 -0.30 53956 -0.08 -0.31 53957 -0.09 -0.38 53958 -0.06 -0.35 53959 0.02 -0.10 53960 0.02 0.24 53961 0.04 0.43 53962 -0.02 0.34 53963 -0.05 0.15 53964 -0.05 -0.12 53965 -0.01 -0.31 53966 0.01 -0.49 53967 0.02 -0.48 53968 -0.03 -0.42 53969 -0.05 -0.31 53970 -0.08 -0.16 53971 -0.08 -0.27 53972 -0.07 -0.28 53973 -0.01 -0.17 53974 0.01 -0.09 53975 0.00 -0.03 53976 -0.06 -0.19 53977 -0.04 -0.22 53978 0.01 -0.27 53979 0.12 -0.09 The IERS Conventions recommended software to predict celestial pole offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/ ceppred.f and software for the calculation of the dX and dY with respect to IAU2000A Nutation/Precession Theory can be found at the web site in section chapter 5. ************************************************************************** Important Notices - Important Notices - Important Notices ************************************************************************** A positive leap second was introduced in UTC on 31 December 2005. The sequence of dates of the UTC second markers will be: 2005 December 31, 23h 59m 59s 2005 December 31, 23h 59m 60s 2006 January 1, 0h 0m 0s The difference between UTC and the International Atomic Time (TAI) is: from 1999 January 1, 0h UTC, to 2006 January 1 0h UTC : UTC-TAI = - 32s from 2006 January 1, 0h UTC, until further notice : UTC-TAI = - 33s ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information ************************************************************************** Resolutions passed at the 24th General Assembly of the International Astronomical Union (IAU) recommend the implementation of a number of new procedures concerning the transformation between the celestial and terrestrial reference systems. Information regarding these procedures is available in Chapter 5 of the IERS Conventions 2003 available at . With these resolutions, beginning on 1 January 2003, IERS Bulletins A and B will publish new products in addition to those already published. These products will include the celestial pole offsets X_obs-X_IAU2000A and Y_obs-Y_IAU2000A where X_obs and Y_obs are the observed X, Y coordinates of the Celestial Intermediate Pole in the Geocentric Celestial Reference System, and X_IAU2000A and Y_IAU2000A are the celestial pole coordinates provided by using the IAU2000A Precession-Nutation theory. It is expected that Celestial Pole offsets related to the IAU1980 Nutation Theory will continue to be published through 15 January 2006. The new celestial pole offsets related to the new IAU2000A Precession-Nutation theory will be produced in a separate data file as well as appended to to this file. ************************************************************************** Important Notice - IAU 2000 Resolution Compliancy Information **************************************************************************