********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 23 November 2006 Vol. XIX No. 047 ______________________________________________________________________ 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 11 17 54056 -.01968 .00003 .28908 .00004 .086848 .000009 6 11 18 54057 -.02116 .00003 .29005 .00004 .085661 .000008 6 11 19 54058 -.02265 .00002 .29074 .00003 .084586 .000008 6 11 20 54059 -.02415 .00002 .29128 .00002 .083620 .000008 6 11 21 54060 -.02564 .00002 .29192 .00002 .082807 .000008 6 11 22 54061 -.02686 .00001 .29289 .00002 .082141 .000009 6 11 23 54062 -.02796 .00001 .29428 .00002 .081470 .000011 _______________________________________________________________________ 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 = .0741 + .0346 cos A - .1244 sin A - .1397 cos C + .0547 sin C y = .3438 - .1053 cos A - .0301 sin A + .0547 cos C + .1397 sin C UT1-UTC = .0517 - .00082 (MJD - 54067) - (UT2-UT1) where A = 2*pi*(MJD-54062)/365.25 and C = 2*pi*(MJD-54062)/435. TAI-UTC(MJD 54063) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54062)**0.80 S t = 0.00025 (MJD-54062)**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 24 54063 -0.0292 0.2957 0.08076 2006 11 25 54064 -0.0305 0.2972 0.08003 2006 11 26 54065 -0.0319 0.2987 0.07912 2006 11 27 54066 -0.0333 0.3001 0.07792 2006 11 28 54067 -0.0347 0.3016 0.07640 2006 11 29 54068 -0.0362 0.3031 0.07466 2006 11 30 54069 -0.0376 0.3046 0.07282 2006 12 1 54070 -0.0391 0.3062 0.07098 2006 12 2 54071 -0.0406 0.3077 0.06934 2006 12 3 54072 -0.0420 0.3093 0.06803 2006 12 4 54073 -0.0435 0.3109 0.06708 2006 12 5 54074 -0.0449 0.3125 0.06643 2006 12 6 54075 -0.0463 0.3142 0.06596 2006 12 7 54076 -0.0478 0.3158 0.06553 2006 12 8 54077 -0.0491 0.3175 0.06503 2006 12 9 54078 -0.0505 0.3191 0.06437 2006 12 10 54079 -0.0518 0.3208 0.06354 2006 12 11 54080 -0.0532 0.3225 0.06253 2006 12 12 54081 -0.0544 0.3243 0.06141 2006 12 13 54082 -0.0557 0.3260 0.06022 2006 12 14 54083 -0.0569 0.3278 0.05902 2006 12 15 54084 -0.0581 0.3295 0.05785 2006 12 16 54085 -0.0593 0.3313 0.05679 2006 12 17 54086 -0.0604 0.3331 0.05586 2006 12 18 54087 -0.0615 0.3349 0.05512 2006 12 19 54088 -0.0626 0.3367 0.05454 2006 12 20 54089 -0.0636 0.3386 0.05409 2006 12 21 54090 -0.0646 0.3404 0.05368 2006 12 22 54091 -0.0655 0.3423 0.05319 2006 12 23 54092 -0.0665 0.3442 0.05251 2006 12 24 54093 -0.0673 0.3460 0.05156 2006 12 25 54094 -0.0682 0.3479 0.05032 2006 12 26 54095 -0.0690 0.3498 0.04882 2006 12 27 54096 -0.0698 0.3518 0.04717 2006 12 28 54097 -0.0705 0.3537 0.04551 2006 12 29 54098 -0.0712 0.3556 0.04397 2006 12 30 54099 -0.0718 0.3576 0.04266 2006 12 31 54100 -0.0724 0.3595 0.04165 2007 1 1 54101 -0.0730 0.3615 0.04091 2007 1 2 54102 -0.0735 0.3635 0.04037 2007 1 3 54103 -0.0740 0.3654 0.03990 2007 1 4 54104 -0.0745 0.3674 0.03940 2007 1 5 54105 -0.0749 0.3694 0.03877 2007 1 6 54106 -0.0753 0.3714 0.03796 2007 1 7 54107 -0.0756 0.3734 0.03697 2007 1 8 54108 -0.0759 0.3755 0.03584 2007 1 9 54109 -0.0761 0.3775 0.03462 2007 1 10 54110 -0.0763 0.3795 0.03337 2007 1 11 54111 -0.0765 0.3815 0.03217 2007 1 12 54112 -0.0766 0.3836 0.03107 2007 1 13 54113 -0.0766 0.3856 0.03011 2007 1 14 54114 -0.0767 0.3876 0.02931 2007 1 15 54115 -0.0766 0.3897 0.02868 2007 1 16 54116 -0.0766 0.3917 0.02819 2007 1 17 54117 -0.0765 0.3938 0.02776 2007 1 18 54118 -0.0764 0.3958 0.02729 2007 1 19 54119 -0.0762 0.3978 0.02668 2007 1 20 54120 -0.0759 0.3999 0.02581 2007 1 21 54121 -0.0756 0.4019 0.02463 2007 1 22 54122 -0.0753 0.4040 0.02316 2007 1 23 54123 -0.0749 0.4060 0.02151 2007 1 24 54124 -0.0745 0.4080 0.01980 2007 1 25 54125 -0.0740 0.4101 0.01820 2007 1 26 54126 -0.0735 0.4121 0.01683 2007 1 27 54127 -0.0730 0.4141 0.01575 2007 1 28 54128 -0.0724 0.4162 0.01494 2007 1 29 54129 -0.0717 0.4182 0.01432 2007 1 30 54130 -0.0710 0.4202 0.01380 2007 1 31 54131 -0.0703 0.4222 0.01325 2007 2 1 54132 -0.0695 0.4242 0.01258 2007 2 2 54133 -0.0687 0.4262 0.01172 2007 2 3 54134 -0.0679 0.4282 0.01066 2007 2 4 54135 -0.0670 0.4301 0.00942 2007 2 5 54136 -0.0660 0.4321 0.00806 2007 2 6 54137 -0.0650 0.4341 0.00663 2007 2 7 54138 -0.0640 0.4360 0.00521 2007 2 8 54139 -0.0629 0.4379 0.00386 2007 2 9 54140 -0.0618 0.4398 0.00262 2007 2 10 54141 -0.0606 0.4418 0.00153 2007 2 11 54142 -0.0594 0.4436 0.00058 2007 2 12 54143 -0.0582 0.4455 -0.00023 2007 2 13 54144 -0.0569 0.4474 -0.00096 2007 2 14 54145 -0.0556 0.4492 -0.00169 2007 2 15 54146 -0.0542 0.4511 -0.00253 2007 2 16 54147 -0.0528 0.4529 -0.00361 2007 2 17 54148 -0.0514 0.4547 -0.00499 2007 2 18 54149 -0.0499 0.4565 -0.00671 2007 2 19 54150 -0.0484 0.4582 -0.00869 2007 2 20 54151 -0.0468 0.4600 -0.01078 2007 2 21 54152 -0.0452 0.4617 -0.01280 2007 2 22 54153 -0.0436 0.4634 -0.01460 2007 2 23 54154 -0.0419 0.4651 -0.01607 2007 2 24 54155 -0.0402 0.4668 -0.01724 2007 2 25 54156 -0.0384 0.4684 -0.01816 2007 2 26 54157 -0.0367 0.4700 -0.01896 2007 2 27 54158 -0.0348 0.4716 -0.01975 2007 2 28 54159 -0.0330 0.4732 -0.02063 2007 3 1 54160 -0.0311 0.4748 -0.02168 2007 3 2 54161 -0.0292 0.4763 -0.02292 2007 3 3 54162 -0.0272 0.4778 -0.02434 2007 3 4 54163 -0.0253 0.4793 -0.02590 2007 3 5 54164 -0.0232 0.4807 -0.02755 2007 3 6 54165 -0.0212 0.4821 -0.02921 2007 3 7 54166 -0.0191 0.4835 -0.03081 2007 3 8 54167 -0.0170 0.4849 -0.03230 2007 3 9 54168 -0.0149 0.4862 -0.03360 2007 3 10 54169 -0.0127 0.4875 -0.03474 2007 3 11 54170 -0.0106 0.4888 -0.03573 2007 3 12 54171 -0.0083 0.4901 -0.03662 2007 3 13 54172 -0.0061 0.4913 -0.03746 2007 3 14 54173 -0.0038 0.4925 -0.03836 2007 3 15 54174 -0.0016 0.4936 -0.03944 2007 3 16 54175 0.0007 0.4947 -0.04081 2007 3 17 54176 0.0031 0.4958 -0.04252 2007 3 18 54177 0.0054 0.4969 -0.04455 2007 3 19 54178 0.0078 0.4979 -0.04681 2007 3 20 54179 0.0102 0.4989 -0.04910 2007 3 21 54180 0.0126 0.4998 -0.05123 2007 3 22 54181 0.0151 0.5007 -0.05307 2007 3 23 54182 0.0175 0.5016 -0.05456 2007 3 24 54183 0.0200 0.5024 -0.05576 2007 3 25 54184 0.0225 0.5032 -0.05677 2007 3 26 54185 0.0250 0.5040 -0.05772 2007 3 27 54186 0.0275 0.5047 -0.05874 2007 3 28 54187 0.0301 0.5054 -0.05990 2007 3 29 54188 0.0326 0.5061 -0.06123 2007 3 30 54189 0.0352 0.5067 -0.06274 2007 3 31 54190 0.0377 0.5072 -0.06438 2007 4 1 54191 0.0403 0.5078 -0.06611 2007 4 2 54192 0.0429 0.5083 -0.06785 2007 4 3 54193 0.0455 0.5087 -0.06954 2007 4 4 54194 0.0482 0.5091 -0.07112 2007 4 5 54195 0.0508 0.5095 -0.07254 2007 4 6 54196 0.0534 0.5099 -0.07378 2007 4 7 54197 0.0561 0.5101 -0.07485 2007 4 8 54198 0.0587 0.5104 -0.07579 2007 4 9 54199 0.0614 0.5106 -0.07665 2007 4 10 54200 0.0640 0.5108 -0.07753 2007 4 11 54201 0.0667 0.5109 -0.07851 2007 4 12 54202 0.0693 0.5110 -0.07970 2007 4 13 54203 0.0720 0.5110 -0.08119 2007 4 14 54204 0.0747 0.5110 -0.08299 2007 4 15 54205 0.0773 0.5110 -0.08507 2007 4 16 54206 0.0800 0.5109 -0.08726 2007 4 17 54207 0.0827 0.5107 -0.08939 2007 4 18 54208 0.0853 0.5106 -0.09128 2007 4 19 54209 0.0880 0.5103 -0.09283 2007 4 20 54210 0.0907 0.5101 -0.09403 2007 4 21 54211 0.0933 0.5098 -0.09497 2007 4 22 54212 0.0960 0.5094 -0.09580 2007 4 23 54213 0.0986 0.5090 -0.09663 2007 4 24 54214 0.1013 0.5086 -0.09758 2007 4 25 54215 0.1039 0.5081 -0.09869 2007 4 26 54216 0.1065 0.5076 -0.09995 2007 4 27 54217 0.1091 0.5070 -0.10133 2007 4 28 54218 0.1118 0.5064 -0.10279 2007 4 29 54219 0.1144 0.5058 -0.10427 2007 4 30 54220 0.1170 0.5051 -0.10569 2007 5 1 54221 0.1195 0.5043 -0.10700 2007 5 2 54222 0.1221 0.5035 -0.10815 2007 5 3 54223 0.1247 0.5027 -0.10911 2007 5 4 54224 0.1272 0.5019 -0.10988 2007 5 5 54225 0.1297 0.5009 -0.11049 2007 5 6 54226 0.1323 0.5000 -0.11101 2007 5 7 54227 0.1348 0.4990 -0.11149 2007 5 8 54228 0.1372 0.4980 -0.11205 2007 5 9 54229 0.1397 0.4969 -0.11276 2007 5 10 54230 0.1422 0.4958 -0.11371 2007 5 11 54231 0.1446 0.4946 -0.11494 2007 5 12 54232 0.1470 0.4934 -0.11643 2007 5 13 54233 0.1494 0.4921 -0.11810 2007 5 14 54234 0.1518 0.4908 -0.11979 2007 5 15 54235 0.1542 0.4895 -0.12133 2007 5 16 54236 0.1565 0.4882 -0.12259 2007 5 17 54237 0.1589 0.4867 -0.12353 2007 5 18 54238 0.1612 0.4853 -0.12418 2007 5 19 54239 0.1635 0.4838 -0.12467 2007 5 20 54240 0.1657 0.4823 -0.12515 2007 5 21 54241 0.1680 0.4807 -0.12575 2007 5 22 54242 0.1702 0.4791 -0.12654 2007 5 23 54243 0.1724 0.4775 -0.12754 2007 5 24 54244 0.1746 0.4758 -0.12873 2007 5 25 54245 0.1767 0.4741 -0.13006 2007 5 26 54246 0.1788 0.4723 -0.13147 2007 5 27 54247 0.1809 0.4706 -0.13289 2007 5 28 54248 0.1830 0.4687 -0.13425 2007 5 29 54249 0.1850 0.4669 -0.13547 2007 5 30 54250 0.1871 0.4650 -0.13649 2007 5 31 54251 0.1891 0.4631 -0.13726 2007 6 1 54252 0.1910 0.4611 -0.13778 2007 6 2 54253 0.1930 0.4591 -0.13808 2007 6 3 54254 0.1950 0.4570 -0.13823 2007 6 4 54255 0.1970 0.4550 -0.13835 2007 6 5 54256 0.1989 0.4528 -0.13852 2007 6 6 54257 0.2008 0.4507 -0.13886 2007 6 7 54258 0.2027 0.4485 -0.13944 2007 6 8 54259 0.2046 0.4463 -0.14026 2007 6 9 54260 0.2064 0.4441 -0.14128 2007 6 10 54261 0.2082 0.4418 -0.14238 2007 6 11 54262 0.2099 0.4395 -0.14343 2007 6 12 54263 0.2117 0.4372 -0.14427 2007 6 13 54264 0.2133 0.4349 -0.14484 2007 6 14 54265 0.2150 0.4325 -0.14513 2007 6 15 54266 0.2166 0.4301 -0.14522 2007 6 16 54267 0.2182 0.4277 -0.14525 2007 6 17 54268 0.2198 0.4252 -0.14532 2007 6 18 54269 0.2213 0.4227 -0.14553 2007 6 19 54270 0.2228 0.4202 -0.14589 2007 6 20 54271 0.2243 0.4177 -0.14635 2007 6 21 54272 0.2257 0.4152 -0.14689 2007 6 22 54273 0.2271 0.4126 -0.14745 2007 6 23 54274 0.2285 0.4100 -0.14797 2007 6 24 54275 0.2298 0.4074 -0.14840 2007 6 25 54276 0.2311 0.4048 -0.14869 2007 6 26 54277 0.2323 0.4022 -0.14880 2007 6 27 54278 0.2335 0.3995 -0.14867 2007 6 28 54279 0.2347 0.3968 -0.14832 2007 6 29 54280 0.2359 0.3942 -0.14783 2007 6 30 54281 0.2370 0.3914 -0.14729 2007 7 1 54282 0.2380 0.3887 -0.14675 2007 7 2 54283 0.2391 0.3860 -0.14625 2007 7 3 54284 0.2401 0.3832 -0.14587 2007 7 4 54285 0.2410 0.3805 -0.14573 2007 7 5 54286 0.2419 0.3777 -0.14582 2007 7 6 54287 0.2428 0.3749 -0.14603 2007 7 7 54288 0.2437 0.3721 -0.14628 2007 7 8 54289 0.2445 0.3693 -0.14647 2007 7 9 54290 0.2452 0.3665 -0.14647 2007 7 10 54291 0.2460 0.3637 -0.14619 2007 7 11 54292 0.2466 0.3608 -0.14558 2007 7 12 54293 0.2473 0.3580 -0.14469 2007 7 13 54294 0.2479 0.3551 -0.14366 2007 7 14 54295 0.2485 0.3523 -0.14266 2007 7 15 54296 0.2490 0.3494 -0.14181 2007 7 16 54297 0.2495 0.3466 -0.14113 2007 7 17 54298 0.2499 0.3437 -0.14066 2007 7 18 54299 0.2503 0.3408 -0.14039 2007 7 19 54300 0.2507 0.3379 -0.14026 2007 7 20 54301 0.2510 0.3351 -0.14011 2007 7 21 54302 0.2513 0.3322 -0.13983 2007 7 22 54303 0.2516 0.3293 -0.13949 2007 7 23 54304 0.2518 0.3264 -0.13901 2007 7 24 54305 0.2519 0.3236 -0.13837 2007 7 25 54306 0.2520 0.3207 -0.13757 2007 7 26 54307 0.2521 0.3178 -0.13670 2007 7 27 54308 0.2521 0.3149 -0.13580 2007 7 28 54309 0.2521 0.3121 -0.13497 2007 7 29 54310 0.2521 0.3092 -0.13428 2007 7 30 54311 0.2520 0.3064 -0.13382 2007 7 31 54312 0.2518 0.3035 -0.13357 2007 8 1 54313 0.2516 0.3007 -0.13356 2007 8 2 54314 0.2514 0.2978 -0.13379 2007 8 3 54315 0.2511 0.2950 -0.13411 2007 8 4 54316 0.2508 0.2922 -0.13431 2007 8 5 54317 0.2505 0.2894 -0.13432 2007 8 6 54318 0.2501 0.2866 -0.13405 2007 8 7 54319 0.2496 0.2838 -0.13343 2007 8 8 54320 0.2491 0.2810 -0.13256 2007 8 9 54321 0.2486 0.2782 -0.13155 2007 8 10 54322 0.2480 0.2755 -0.13050 2007 8 11 54323 0.2474 0.2727 -0.12946 2007 8 12 54324 0.2468 0.2700 -0.12864 2007 8 13 54325 0.2460 0.2673 -0.12804 2007 8 14 54326 0.2453 0.2646 -0.12764 2007 8 15 54327 0.2445 0.2619 -0.12736 2007 8 16 54328 0.2436 0.2593 -0.12711 2007 8 17 54329 0.2428 0.2566 -0.12683 2007 8 18 54330 0.2418 0.2540 -0.12651 2007 8 19 54331 0.2409 0.2514 -0.12617 2007 8 20 54332 0.2398 0.2488 -0.12575 2007 8 21 54333 0.2388 0.2462 -0.12524 2007 8 22 54334 0.2377 0.2436 -0.12470 2007 8 23 54335 0.2365 0.2411 -0.12416 2007 8 24 54336 0.2353 0.2386 -0.12366 2007 8 25 54337 0.2340 0.2361 -0.12324 2007 8 26 54338 0.2328 0.2336 -0.12301 2007 8 27 54339 0.2314 0.2312 -0.12310 2007 8 28 54340 0.2300 0.2287 -0.12345 2007 8 29 54341 0.2286 0.2263 -0.12405 2007 8 30 54342 0.2271 0.2239 -0.12479 2007 8 31 54343 0.2256 0.2216 -0.12550 2007 9 1 54344 0.2241 0.2193 -0.12606 2007 9 2 54345 0.2225 0.2170 -0.12635 2007 9 3 54346 0.2208 0.2147 -0.12634 2007 9 4 54347 0.2191 0.2124 -0.12611 2007 9 5 54348 0.2174 0.2102 -0.12579 2007 9 6 54349 0.2156 0.2080 -0.12547 2007 9 7 54350 0.2138 0.2059 -0.12519 2007 9 8 54351 0.2119 0.2037 -0.12508 2007 9 9 54352 0.2100 0.2016 -0.12513 2007 9 10 54353 0.2081 0.1995 -0.12535 2007 9 11 54354 0.2061 0.1975 -0.12578 2007 9 12 54355 0.2040 0.1955 -0.12638 2007 9 13 54356 0.2019 0.1935 -0.12705 2007 9 14 54357 0.1998 0.1915 -0.12767 2007 9 15 54358 0.1976 0.1896 -0.12817 2007 9 16 54359 0.1954 0.1877 -0.12853 2007 9 17 54360 0.1932 0.1859 -0.12871 2007 9 18 54361 0.1909 0.1841 -0.12874 2007 9 19 54362 0.1886 0.1823 -0.12869 2007 9 20 54363 0.1862 0.1805 -0.12863 2007 9 21 54364 0.1838 0.1788 -0.12863 2007 9 22 54365 0.1813 0.1771 -0.12879 2007 9 23 54366 0.1788 0.1755 -0.12914 2007 9 24 54367 0.1763 0.1739 -0.12977 2007 9 25 54368 0.1737 0.1723 -0.13075 2007 9 26 54369 0.1711 0.1708 -0.13195 2007 9 27 54370 0.1684 0.1693 -0.13330 2007 9 28 54371 0.1658 0.1678 -0.13464 2007 9 29 54372 0.1630 0.1664 -0.13580 2007 9 30 54373 0.1603 0.1650 -0.13665 2007 10 1 54374 0.1575 0.1637 -0.13709 2007 10 2 54375 0.1546 0.1623 -0.13724 2007 10 3 54376 0.1518 0.1611 -0.13722 2007 10 4 54377 0.1489 0.1599 -0.13720 2007 10 5 54378 0.1459 0.1587 -0.13727 2007 10 6 54379 0.1430 0.1575 -0.13747 2007 10 7 54380 0.1400 0.1564 -0.13782 2007 10 8 54381 0.1369 0.1554 -0.13836 2007 10 9 54382 0.1339 0.1543 -0.13891 2007 10 10 54383 0.1308 0.1534 -0.13947 2007 10 11 54384 0.1276 0.1524 -0.14004 2007 10 12 54385 0.1245 0.1515 -0.14055 2007 10 13 54386 0.1213 0.1507 -0.14085 2007 10 14 54387 0.1181 0.1499 -0.14098 2007 10 15 54388 0.1148 0.1491 -0.14097 2007 10 16 54389 0.1115 0.1484 -0.14085 2007 10 17 54390 0.1082 0.1477 -0.14071 2007 10 18 54391 0.1049 0.1471 -0.14058 2007 10 19 54392 0.1016 0.1465 -0.14055 2007 10 20 54393 0.0982 0.1460 -0.14069 2007 10 21 54394 0.0948 0.1455 -0.14105 2007 10 22 54395 0.0914 0.1450 -0.14167 2007 10 23 54396 0.0879 0.1446 -0.14261 2007 10 24 54397 0.0845 0.1443 -0.14380 2007 10 25 54398 0.0810 0.1439 -0.14505 2007 10 26 54399 0.0775 0.1437 -0.14620 2007 10 27 54400 0.0740 0.1435 -0.14707 2007 10 28 54401 0.0705 0.1433 -0.14762 2007 10 29 54402 0.0669 0.1432 -0.14799 2007 10 30 54403 0.0633 0.1431 -0.14821 2007 10 31 54404 0.0598 0.1430 -0.14848 2007 11 1 54405 0.0562 0.1431 -0.14886 2007 11 2 54406 0.0526 0.1431 -0.14943 2007 11 3 54407 0.0489 0.1432 -0.15021 2007 11 4 54408 0.0453 0.1434 -0.15113 2007 11 5 54409 0.0417 0.1436 -0.15214 2007 11 6 54410 0.0380 0.1438 -0.15315 2007 11 7 54411 0.0344 0.1441 -0.15405 2007 11 8 54412 0.0307 0.1445 -0.15484 2007 11 9 54413 0.0271 0.1449 -0.15547 2007 11 10 54414 0.0234 0.1453 -0.15591 2007 11 11 54415 0.0197 0.1458 -0.15616 2007 11 12 54416 0.0160 0.1464 -0.15620 2007 11 13 54417 0.0124 0.1470 -0.15616 2007 11 14 54418 0.0087 0.1476 -0.15607 2007 11 15 54419 0.0050 0.1483 -0.15597 2007 11 16 54420 0.0013 0.1490 -0.15594 2007 11 17 54421 -0.0023 0.1498 -0.15611 2007 11 18 54422 -0.0060 0.1507 -0.15653 2007 11 19 54423 -0.0097 0.1515 -0.15717 2007 11 20 54424 -0.0133 0.1525 -0.15807 2007 11 21 54425 -0.0170 0.1534 -0.15902 2007 11 22 54426 -0.0206 0.1545 -0.15998 2007 11 23 54427 -0.0242 0.1556 -0.16086 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) 54043 -62.18 .17 -3.38 .15 54044 -62.16 .14 -3.54 .15 54045 -61.90 .14 -3.71 .15 54046 -61.74 .74 -3.72 .16 54047 -61.77 .74 -3.66 .13 54048 -61.74 .74 -3.70 .13 54049 -61.42 .74 -3.81 .13 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54043 0.057 0.068 0.057 0.150 54044 0.048 0.056 0.077 0.150 54045 0.049 0.056 0.083 0.150 54046 0.063 0.294 0.066 0.160 54047 0.091 0.294 0.057 0.130 54048 0.114 0.294 0.068 0.130 54049 0.134 0.294 0.079 0.130 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