********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 2 November 2006 Vol. XIX No. 044 ______________________________________________________________________ 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 10 27 54035 -.00249 .00004 .26825 .00005 .112081 .000012 6 10 28 54036 -.00288 .00004 .26872 .00004 .111323 .000012 6 10 29 54037 -.00312 .00004 .26932 .00003 .110514 .000014 6 10 30 54038 -.00332 .00003 .27028 .00003 .109531 .000015 6 10 31 54039 -.00377 .00003 .27138 .00002 .108276 .000016 6 11 1 54040 -.00414 .00002 .27249 .00002 .106717 .000015 6 11 2 54041 -.00426 .00002 .27383 .00002 .104816 .000015 _______________________________________________________________________ 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 = .0727 + .0823 cos A - .1192 sin A - .1644 cos C + .0187 sin C y = .3536 - .1003 cos A - .0748 sin A + .0187 cos C + .1644 sin C UT1-UTC = .0601 - .00078 (MJD - 54046) - (UT2-UT1) where A = 2*pi*(MJD-54041)/365.25 and C = 2*pi*(MJD-54041)/435. TAI-UTC(MJD 54042) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54041)**0.80 S t = 0.00025 (MJD-54041)**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 11 3 54042 -0.0045 0.2752 0.10267 2006 11 4 54043 -0.0050 0.2766 0.10056 2006 11 5 54044 -0.0055 0.2779 0.09873 2006 11 6 54045 -0.0062 0.2791 0.09731 2006 11 7 54046 -0.0070 0.2804 0.09623 2006 11 8 54047 -0.0079 0.2816 0.09540 2006 11 9 54048 -0.0089 0.2828 0.09464 2006 11 10 54049 -0.0099 0.2840 0.09385 2006 11 11 54050 -0.0111 0.2851 0.09301 2006 11 12 54051 -0.0123 0.2863 0.09205 2006 11 13 54052 -0.0136 0.2875 0.09090 2006 11 14 54053 -0.0150 0.2887 0.08957 2006 11 15 54054 -0.0164 0.2899 0.08811 2006 11 16 54055 -0.0179 0.2912 0.08659 2006 11 17 54056 -0.0194 0.2924 0.08508 2006 11 18 54057 -0.0209 0.2937 0.08366 2006 11 19 54058 -0.0225 0.2950 0.08236 2006 11 20 54059 -0.0241 0.2963 0.08121 2006 11 21 54060 -0.0258 0.2976 0.08021 2006 11 22 54061 -0.0275 0.2989 0.07933 2006 11 23 54062 -0.0292 0.3003 0.07854 2006 11 24 54063 -0.0309 0.3017 0.07777 2006 11 25 54064 -0.0326 0.3031 0.07692 2006 11 26 54065 -0.0343 0.3046 0.07589 2006 11 27 54066 -0.0360 0.3060 0.07460 2006 11 28 54067 -0.0378 0.3075 0.07304 2006 11 29 54068 -0.0395 0.3090 0.07126 2006 11 30 54069 -0.0412 0.3106 0.06934 2006 12 1 54070 -0.0429 0.3121 0.06743 2006 12 2 54071 -0.0447 0.3137 0.06569 2006 12 3 54072 -0.0464 0.3153 0.06422 2006 12 4 54073 -0.0480 0.3170 0.06307 2006 12 5 54074 -0.0497 0.3186 0.06218 2006 12 6 54075 -0.0514 0.3203 0.06148 2006 12 7 54076 -0.0530 0.3220 0.06083 2006 12 8 54077 -0.0546 0.3237 0.06012 2006 12 9 54078 -0.0562 0.3255 0.05927 2006 12 10 54079 -0.0578 0.3272 0.05826 2006 12 11 54080 -0.0593 0.3290 0.05709 2006 12 12 54081 -0.0608 0.3308 0.05582 2006 12 13 54082 -0.0623 0.3327 0.05447 2006 12 14 54083 -0.0637 0.3345 0.05313 2006 12 15 54084 -0.0651 0.3364 0.05184 2006 12 16 54085 -0.0665 0.3383 0.05066 2006 12 17 54086 -0.0679 0.3402 0.04964 2006 12 18 54087 -0.0692 0.3421 0.04880 2006 12 19 54088 -0.0704 0.3441 0.04813 2006 12 20 54089 -0.0717 0.3460 0.04758 2006 12 21 54090 -0.0728 0.3480 0.04708 2006 12 22 54091 -0.0740 0.3500 0.04653 2006 12 23 54092 -0.0751 0.3520 0.04581 2006 12 24 54093 -0.0762 0.3540 0.04484 2006 12 25 54094 -0.0772 0.3561 0.04359 2006 12 26 54095 -0.0782 0.3581 0.04209 2006 12 27 54096 -0.0791 0.3602 0.04044 2006 12 28 54097 -0.0800 0.3623 0.03878 2006 12 29 54098 -0.0808 0.3644 0.03725 2006 12 30 54099 -0.0816 0.3665 0.03595 2006 12 31 54100 -0.0823 0.3686 0.03493 2007 1 1 54101 -0.0830 0.3708 0.03417 2007 1 2 54102 -0.0837 0.3729 0.03358 2007 1 3 54103 -0.0843 0.3750 0.03307 2007 1 4 54104 -0.0848 0.3772 0.03251 2007 1 5 54105 -0.0853 0.3794 0.03182 2007 1 6 54106 -0.0858 0.3815 0.03094 2007 1 7 54107 -0.0862 0.3837 0.02988 2007 1 8 54108 -0.0865 0.3859 0.02867 2007 1 9 54109 -0.0868 0.3881 0.02735 2007 1 10 54110 -0.0871 0.3903 0.02599 2007 1 11 54111 -0.0873 0.3926 0.02465 2007 1 12 54112 -0.0874 0.3948 0.02341 2007 1 13 54113 -0.0875 0.3970 0.02231 2007 1 14 54114 -0.0876 0.3992 0.02137 2007 1 15 54115 -0.0875 0.4015 0.02059 2007 1 16 54116 -0.0875 0.4037 0.01996 2007 1 17 54117 -0.0874 0.4059 0.01941 2007 1 18 54118 -0.0872 0.4082 0.01883 2007 1 19 54119 -0.0870 0.4104 0.01811 2007 1 20 54120 -0.0867 0.4127 0.01716 2007 1 21 54121 -0.0864 0.4149 0.01591 2007 1 22 54122 -0.0860 0.4171 0.01438 2007 1 23 54123 -0.0856 0.4194 0.01267 2007 1 24 54124 -0.0851 0.4216 0.01092 2007 1 25 54125 -0.0846 0.4238 0.00929 2007 1 26 54126 -0.0840 0.4260 0.00789 2007 1 27 54127 -0.0834 0.4282 0.00679 2007 1 28 54128 -0.0827 0.4304 0.00595 2007 1 29 54129 -0.0820 0.4326 0.00532 2007 1 30 54130 -0.0812 0.4348 0.00478 2007 1 31 54131 -0.0803 0.4370 0.00422 2007 2 1 54132 -0.0795 0.4392 0.00354 2007 2 2 54133 -0.0785 0.4414 0.00268 2007 2 3 54134 -0.0776 0.4435 0.00163 2007 2 4 54135 -0.0765 0.4457 0.00040 2007 2 5 54136 -0.0755 0.4478 -0.00096 2007 2 6 54137 -0.0743 0.4499 -0.00238 2007 2 7 54138 -0.0732 0.4520 -0.00378 2007 2 8 54139 -0.0719 0.4541 -0.00510 2007 2 9 54140 -0.0707 0.4562 -0.00630 2007 2 10 54141 -0.0694 0.4583 -0.00734 2007 2 11 54142 -0.0680 0.4603 -0.00822 2007 2 12 54143 -0.0666 0.4623 -0.00895 2007 2 13 54144 -0.0652 0.4644 -0.00960 2007 2 14 54145 -0.0637 0.4664 -0.01023 2007 2 15 54146 -0.0621 0.4683 -0.01097 2007 2 16 54147 -0.0606 0.4703 -0.01194 2007 2 17 54148 -0.0589 0.4722 -0.01323 2007 2 18 54149 -0.0573 0.4741 -0.01485 2007 2 19 54150 -0.0556 0.4760 -0.01675 2007 2 20 54151 -0.0538 0.4779 -0.01876 2007 2 21 54152 -0.0520 0.4797 -0.02071 2007 2 22 54153 -0.0502 0.4816 -0.02244 2007 2 23 54154 -0.0484 0.4834 -0.02386 2007 2 24 54155 -0.0465 0.4851 -0.02497 2007 2 25 54156 -0.0445 0.4869 -0.02584 2007 2 26 54157 -0.0426 0.4886 -0.02659 2007 2 27 54158 -0.0405 0.4903 -0.02733 2007 2 28 54159 -0.0385 0.4920 -0.02817 2007 3 1 54160 -0.0364 0.4936 -0.02916 2007 3 2 54161 -0.0343 0.4952 -0.03035 2007 3 3 54162 -0.0322 0.4968 -0.03171 2007 3 4 54163 -0.0300 0.4983 -0.03322 2007 3 5 54164 -0.0278 0.4998 -0.03481 2007 3 6 54165 -0.0255 0.5013 -0.03640 2007 3 7 54166 -0.0233 0.5028 -0.03793 2007 3 8 54167 -0.0210 0.5042 -0.03935 2007 3 9 54168 -0.0186 0.5055 -0.04061 2007 3 10 54169 -0.0163 0.5069 -0.04170 2007 3 11 54170 -0.0139 0.5082 -0.04264 2007 3 12 54171 -0.0115 0.5095 -0.04347 2007 3 13 54172 -0.0091 0.5107 -0.04426 2007 3 14 54173 -0.0066 0.5119 -0.04511 2007 3 15 54174 -0.0041 0.5131 -0.04613 2007 3 16 54175 -0.0016 0.5142 -0.04743 2007 3 17 54176 0.0009 0.5153 -0.04907 2007 3 18 54177 0.0035 0.5164 -0.05103 2007 3 19 54178 0.0060 0.5174 -0.05320 2007 3 20 54179 0.0086 0.5184 -0.05540 2007 3 21 54180 0.0112 0.5193 -0.05745 2007 3 22 54181 0.0139 0.5202 -0.05919 2007 3 23 54182 0.0165 0.5210 -0.06058 2007 3 24 54183 0.0192 0.5218 -0.06167 2007 3 25 54184 0.0219 0.5226 -0.06257 2007 3 26 54185 0.0246 0.5233 -0.06341 2007 3 27 54186 0.0273 0.5240 -0.06431 2007 3 28 54187 0.0300 0.5247 -0.06535 2007 3 29 54188 0.0327 0.5253 -0.06657 2007 3 30 54189 0.0355 0.5258 -0.06795 2007 3 31 54190 0.0377 0.5263 -0.06947 2007 4 1 54191 0.0405 0.5268 -0.07107 2007 4 2 54192 0.0433 0.5272 -0.07270 2007 4 3 54193 0.0461 0.5276 -0.07427 2007 4 4 54194 0.0489 0.5279 -0.07573 2007 4 5 54195 0.0517 0.5282 -0.07704 2007 4 6 54196 0.0545 0.5285 -0.07816 2007 4 7 54197 0.0573 0.5287 -0.07912 2007 4 8 54198 0.0602 0.5288 -0.07995 2007 4 9 54199 0.0630 0.5289 -0.08070 2007 4 10 54200 0.0658 0.5290 -0.08146 2007 4 11 54201 0.0687 0.5290 -0.08233 2007 4 12 54202 0.0715 0.5290 -0.08342 2007 4 13 54203 0.0744 0.5289 -0.08480 2007 4 14 54204 0.0772 0.5288 -0.08651 2007 4 15 54205 0.0800 0.5286 -0.08848 2007 4 16 54206 0.0829 0.5284 -0.09058 2007 4 17 54207 0.0857 0.5281 -0.09261 2007 4 18 54208 0.0886 0.5278 -0.09441 2007 4 19 54209 0.0914 0.5275 -0.09588 2007 4 20 54210 0.0942 0.5271 -0.09700 2007 4 21 54211 0.0970 0.5266 -0.09787 2007 4 22 54212 0.0998 0.5261 -0.09862 2007 4 23 54213 0.1027 0.5256 -0.09941 2007 4 24 54214 0.1055 0.5250 -0.10032 2007 4 25 54215 0.1083 0.5243 -0.10140 2007 4 26 54216 0.1110 0.5237 -0.10266 2007 4 27 54217 0.1138 0.5229 -0.10407 2007 4 28 54218 0.1166 0.5221 -0.10559 2007 4 29 54219 0.1193 0.5213 -0.10717 2007 4 30 54220 0.1221 0.5205 -0.10873 2007 5 1 54221 0.1248 0.5195 -0.11023 2007 5 2 54222 0.1275 0.5186 -0.11162 2007 5 3 54223 0.1303 0.5176 -0.11289 2007 5 4 54224 0.1329 0.5165 -0.11403 2007 5 5 54225 0.1356 0.5154 -0.11507 2007 5 6 54226 0.1383 0.5143 -0.11607 2007 5 7 54227 0.1410 0.5131 -0.11709 2007 5 8 54228 0.1436 0.5119 -0.11818 2007 5 9 54229 0.1462 0.5106 -0.11942 2007 5 10 54230 0.1488 0.5093 -0.12085 2007 5 11 54231 0.1514 0.5079 -0.12250 2007 5 12 54232 0.1541 0.5065 -0.12434 2007 5 13 54233 0.1567 0.5051 -0.12631 2007 5 14 54234 0.1593 0.5036 -0.12826 2007 5 15 54235 0.1619 0.5021 -0.13005 2007 5 16 54236 0.1645 0.5005 -0.13152 2007 5 17 54237 0.1671 0.4989 -0.13264 2007 5 18 54238 0.1696 0.4973 -0.13342 2007 5 19 54239 0.1721 0.4956 -0.13397 2007 5 20 54240 0.1746 0.4939 -0.13443 2007 5 21 54241 0.1771 0.4921 -0.13492 2007 5 22 54242 0.1796 0.4903 -0.13548 2007 5 23 54243 0.1820 0.4885 -0.13615 2007 5 24 54244 0.1844 0.4866 -0.13689 2007 5 25 54245 0.1868 0.4847 -0.13765 2007 5 26 54246 0.1892 0.4827 -0.13836 2007 5 27 54247 0.1915 0.4807 -0.13898 2007 5 28 54248 0.1938 0.4787 -0.13945 2007 5 29 54249 0.1961 0.4767 -0.13973 2007 5 30 54250 0.1983 0.4746 -0.13980 2007 5 31 54251 0.2006 0.4724 -0.13965 2007 6 1 54252 0.2028 0.4703 -0.13930 2007 6 2 54253 0.2049 0.4680 -0.13881 2007 6 3 54254 0.2071 0.4658 -0.13827 2007 6 4 54255 0.2092 0.4635 -0.13779 2007 6 5 54256 0.2113 0.4612 -0.13745 2007 6 6 54257 0.2133 0.4589 -0.13736 2007 6 7 54258 0.2153 0.4566 -0.13755 2007 6 8 54259 0.2173 0.4542 -0.13797 2007 6 9 54260 0.2193 0.4517 -0.13852 2007 6 10 54261 0.2212 0.4493 -0.13915 2007 6 11 54262 0.2231 0.4468 -0.13970 2007 6 12 54263 0.2250 0.4443 -0.14004 2007 6 13 54264 0.2268 0.4418 -0.14009 2007 6 14 54265 0.2286 0.4392 -0.13989 2007 6 15 54266 0.2304 0.4366 -0.13949 2007 6 16 54267 0.2321 0.4340 -0.13906 2007 6 17 54268 0.2338 0.4314 -0.13870 2007 6 18 54269 0.2355 0.4287 -0.13848 2007 6 19 54270 0.2371 0.4260 -0.13838 2007 6 20 54271 0.2387 0.4233 -0.13838 2007 6 21 54272 0.2403 0.4206 -0.13850 2007 6 22 54273 0.2418 0.4178 -0.13864 2007 6 23 54274 0.2433 0.4151 -0.13868 2007 6 24 54275 0.2448 0.4123 -0.13860 2007 6 25 54276 0.2462 0.4095 -0.13836 2007 6 26 54277 0.2476 0.4066 -0.13788 2007 6 27 54278 0.2489 0.4038 -0.13718 2007 6 28 54279 0.2502 0.4009 -0.13628 2007 6 29 54280 0.2515 0.3980 -0.13522 2007 6 30 54281 0.2527 0.3951 -0.13400 2007 7 1 54282 0.2539 0.3922 -0.13284 2007 7 2 54283 0.2550 0.3893 -0.13183 2007 7 3 54284 0.2561 0.3864 -0.13102 2007 7 4 54285 0.2572 0.3834 -0.13047 2007 7 5 54286 0.2582 0.3804 -0.13016 2007 7 6 54287 0.2592 0.3775 -0.13000 2007 7 7 54288 0.2601 0.3745 -0.12998 2007 7 8 54289 0.2610 0.3715 -0.12999 2007 7 9 54290 0.2619 0.3684 -0.12991 2007 7 10 54291 0.2627 0.3654 -0.12962 2007 7 11 54292 0.2635 0.3624 -0.12914 2007 7 12 54293 0.2642 0.3594 -0.12851 2007 7 13 54294 0.2649 0.3563 -0.12782 2007 7 14 54295 0.2655 0.3533 -0.12713 2007 7 15 54296 0.2661 0.3502 -0.12656 2007 7 16 54297 0.2667 0.3471 -0.12622 2007 7 17 54298 0.2672 0.3441 -0.12599 2007 7 18 54299 0.2676 0.3410 -0.12589 2007 7 19 54300 0.2681 0.3379 -0.12582 2007 7 20 54301 0.2684 0.3348 -0.12570 2007 7 21 54302 0.2687 0.3318 -0.12551 2007 7 22 54303 0.2690 0.3287 -0.12517 2007 7 23 54304 0.2693 0.3256 -0.12468 2007 7 24 54305 0.2694 0.3225 -0.12405 2007 7 25 54306 0.2696 0.3194 -0.12331 2007 7 26 54307 0.2697 0.3164 -0.12247 2007 7 27 54308 0.2697 0.3133 -0.12152 2007 7 28 54309 0.2697 0.3102 -0.12057 2007 7 29 54310 0.2696 0.3072 -0.11969 2007 7 30 54311 0.2695 0.3041 -0.11900 2007 7 31 54312 0.2694 0.3010 -0.11864 2007 8 1 54313 0.2692 0.2980 -0.11865 2007 8 2 54314 0.2689 0.2949 -0.11897 2007 8 3 54315 0.2686 0.2919 -0.11941 2007 8 4 54316 0.2683 0.2889 -0.11981 2007 8 5 54317 0.2679 0.2858 -0.12006 2007 8 6 54318 0.2674 0.2828 -0.12003 2007 8 7 54319 0.2669 0.2798 -0.11971 2007 8 8 54320 0.2664 0.2768 -0.11917 2007 8 9 54321 0.2658 0.2738 -0.11852 2007 8 10 54322 0.2651 0.2709 -0.11788 2007 8 11 54323 0.2644 0.2679 -0.11737 2007 8 12 54324 0.2637 0.2650 -0.11698 2007 8 13 54325 0.2629 0.2620 -0.11678 2007 8 14 54326 0.2620 0.2591 -0.11679 2007 8 15 54327 0.2611 0.2562 -0.11690 2007 8 16 54328 0.2601 0.2533 -0.11708 2007 8 17 54329 0.2591 0.2505 -0.11729 2007 8 18 54330 0.2580 0.2476 -0.11745 2007 8 19 54331 0.2569 0.2448 -0.11747 2007 8 20 54332 0.2557 0.2420 -0.11723 2007 8 21 54333 0.2545 0.2392 -0.11674 2007 8 22 54334 0.2532 0.2364 -0.11603 2007 8 23 54335 0.2519 0.2336 -0.11519 2007 8 24 54336 0.2505 0.2309 -0.11429 2007 8 25 54337 0.2491 0.2282 -0.11342 2007 8 26 54338 0.2476 0.2255 -0.11270 2007 8 27 54339 0.2461 0.2228 -0.11230 2007 8 28 54340 0.2445 0.2201 -0.11214 2007 8 29 54341 0.2428 0.2175 -0.11227 2007 8 30 54342 0.2411 0.2149 -0.11265 2007 8 31 54343 0.2394 0.2123 -0.11310 2007 9 1 54344 0.2376 0.2098 -0.11337 2007 9 2 54345 0.2357 0.2072 -0.11338 2007 9 3 54346 0.2338 0.2048 -0.11311 2007 9 4 54347 0.2318 0.2023 -0.11260 2007 9 5 54348 0.2298 0.1998 -0.11196 2007 9 6 54349 0.2278 0.1974 -0.11129 2007 9 7 54350 0.2257 0.1950 -0.11070 2007 9 8 54351 0.2235 0.1927 -0.11027 2007 9 9 54352 0.2213 0.1903 -0.11002 2007 9 10 54353 0.2190 0.1881 -0.10994 2007 9 11 54354 0.2167 0.1858 -0.11005 2007 9 12 54355 0.2143 0.1836 -0.11029 2007 9 13 54356 0.2119 0.1814 -0.11059 2007 9 14 54357 0.2095 0.1792 -0.11086 2007 9 15 54358 0.2070 0.1771 -0.11100 2007 9 16 54359 0.2044 0.1750 -0.11099 2007 9 17 54360 0.2018 0.1729 -0.11092 2007 9 18 54361 0.1991 0.1709 -0.11071 2007 9 19 54362 0.1964 0.1689 -0.11044 2007 9 20 54363 0.1937 0.1669 -0.11016 2007 9 21 54364 0.1909 0.1650 -0.10994 2007 9 22 54365 0.1880 0.1631 -0.10990 2007 9 23 54366 0.1851 0.1613 -0.11011 2007 9 24 54367 0.1822 0.1595 -0.11062 2007 9 25 54368 0.1792 0.1577 -0.11146 2007 9 26 54369 0.1762 0.1560 -0.11250 2007 9 27 54370 0.1731 0.1543 -0.11365 2007 9 28 54371 0.1700 0.1526 -0.11474 2007 9 29 54372 0.1669 0.1510 -0.11561 2007 9 30 54373 0.1637 0.1495 -0.11614 2007 10 1 54374 0.1604 0.1480 -0.11630 2007 10 2 54375 0.1572 0.1465 -0.11624 2007 10 3 54376 0.1539 0.1450 -0.11607 2007 10 4 54377 0.1505 0.1436 -0.11587 2007 10 5 54378 0.1471 0.1423 -0.11576 2007 10 6 54379 0.1437 0.1410 -0.11583 2007 10 7 54380 0.1402 0.1397 -0.11610 2007 10 8 54381 0.1367 0.1385 -0.11649 2007 10 9 54382 0.1332 0.1374 -0.11702 2007 10 10 54383 0.1296 0.1362 -0.11755 2007 10 11 54384 0.1260 0.1352 -0.11809 2007 10 12 54385 0.1224 0.1341 -0.11863 2007 10 13 54386 0.1187 0.1332 -0.11901 2007 10 14 54387 0.1150 0.1322 -0.11919 2007 10 15 54388 0.1113 0.1313 -0.11921 2007 10 16 54389 0.1075 0.1305 -0.11912 2007 10 17 54390 0.1038 0.1297 -0.11901 2007 10 18 54391 0.0999 0.1290 -0.11896 2007 10 19 54392 0.0961 0.1283 -0.11905 2007 10 20 54393 0.0922 0.1277 -0.11933 2007 10 21 54394 0.0884 0.1271 -0.11988 2007 10 22 54395 0.0845 0.1265 -0.12075 2007 10 23 54396 0.0805 0.1261 -0.12194 2007 10 24 54397 0.0766 0.1256 -0.12334 2007 10 25 54398 0.0726 0.1252 -0.12475 2007 10 26 54399 0.0686 0.1249 -0.12599 2007 10 27 54400 0.0646 0.1246 -0.12685 2007 10 28 54401 0.0606 0.1244 -0.12744 2007 10 29 54402 0.0566 0.1243 -0.12777 2007 10 30 54403 0.0525 0.1241 -0.12793 2007 10 31 54404 0.0485 0.1241 -0.12810 2007 11 1 54405 0.0444 0.1241 -0.12841 2007 11 2 54406 0.0403 0.1241 -0.12889 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) 54022 -64.64 .19 -5.09 .34 54023 -64.25 .17 -4.87 .12 54024 -64.00 .17 -4.49 .12 54025 -63.78 .20 -4.19 .13 54026 -63.55 .27 -3.95 .12 54027 -63.38 .27 -3.70 .12 54028 -63.30 .27 -3.48 .12 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54022 0.063 0.076 0.038 0.340 54023 0.077 0.068 0.039 0.120 54024 0.082 0.068 0.075 0.120 54025 0.074 0.080 0.087 0.130 54026 0.063 0.107 0.090 0.120 54027 0.050 0.107 0.083 0.120 54028 0.035 0.107 0.082 0.120 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 **************************************************************************