********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 27 July 2006 Vol. XIX No. 030 ______________________________________________________________________ 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 = +0.2 seconds beginning 27 April 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 7 21 53937 .12012 .00002 .27829 .00004 .182533 .000008 6 7 22 53938 .11944 .00002 .27742 .00004 .182610 .000009 6 7 23 53939 .11876 .00002 .27652 .00005 .182839 .000009 6 7 24 53940 .11802 .00002 .27552 .00005 .183095 .000010 6 7 25 53941 .11738 .00002 .27434 .00004 .183257 .000010 6 7 26 53942 .11692 .00002 .27331 .00004 .183259 .000009 6 7 27 53943 .11653 .00001 .27244 .00004 .183129 .000008 _______________________________________________________________________ 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 = .0520 + .1434 cos A + .1013 sin A - .0743 cos C - .1830 sin C y = .3542 + .0975 cos A - .1282 sin A - .1830 cos C + .0743 sin C UT1-UTC = .1448 - .00055 (MJD - 53948) - (UT2-UT1) where A = 2*pi*(MJD-53943)/365.25 and C = 2*pi*(MJD-53943)/435. TAI-UTC(MJD 53944) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-53943)**0.80 S t = 0.00025 (MJD-53943)**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 7 28 53944 0.1161 0.2715 0.18284 2006 7 29 53945 0.1156 0.2705 0.18244 2006 7 30 53946 0.1151 0.2694 0.18195 2006 7 31 53947 0.1144 0.2684 0.18143 2006 8 1 53948 0.1137 0.2673 0.18095 2006 8 2 53949 0.1129 0.2662 0.18060 2006 8 3 53950 0.1120 0.2651 0.18042 2006 8 4 53951 0.1111 0.2640 0.18040 2006 8 5 53952 0.1102 0.2629 0.18052 2006 8 6 53953 0.1092 0.2618 0.18071 2006 8 7 53954 0.1082 0.2608 0.18084 2006 8 8 53955 0.1072 0.2597 0.18077 2006 8 9 53956 0.1061 0.2587 0.18041 2006 8 10 53957 0.1050 0.2576 0.17970 2006 8 11 53958 0.1038 0.2566 0.17868 2006 8 12 53959 0.1027 0.2556 0.17745 2006 8 13 53960 0.1015 0.2546 0.17615 2006 8 14 53961 0.1003 0.2537 0.17495 2006 8 15 53962 0.0990 0.2527 0.17398 2006 8 16 53963 0.0978 0.2518 0.17330 2006 8 17 53964 0.0965 0.2509 0.17287 2006 8 18 53965 0.0952 0.2500 0.17265 2006 8 19 53966 0.0938 0.2491 0.17251 2006 8 20 53967 0.0925 0.2482 0.17238 2006 8 21 53968 0.0911 0.2474 0.17216 2006 8 22 53969 0.0897 0.2465 0.17181 2006 8 23 53970 0.0883 0.2457 0.17131 2006 8 24 53971 0.0868 0.2449 0.17067 2006 8 25 53972 0.0854 0.2441 0.16991 2006 8 26 53973 0.0839 0.2434 0.16910 2006 8 27 53974 0.0824 0.2427 0.16829 2006 8 28 53975 0.0808 0.2420 0.16754 2006 8 29 53976 0.0793 0.2413 0.16690 2006 8 30 53977 0.0777 0.2406 0.16641 2006 8 31 53978 0.0761 0.2399 0.16607 2006 9 1 53979 0.0745 0.2393 0.16589 2006 9 2 53980 0.0728 0.2387 0.16581 2006 9 3 53981 0.0712 0.2382 0.16576 2006 9 4 53982 0.0695 0.2376 0.16560 2006 9 5 53983 0.0678 0.2371 0.16521 2006 9 6 53984 0.0660 0.2366 0.16448 2006 9 7 53985 0.0643 0.2361 0.16337 2006 9 8 53986 0.0625 0.2356 0.16196 2006 9 9 53987 0.0607 0.2352 0.16038 2006 9 10 53988 0.0589 0.2348 0.15884 2006 9 11 53989 0.0571 0.2344 0.15751 2006 9 12 53990 0.0552 0.2341 0.15651 2006 9 13 53991 0.0533 0.2338 0.15582 2006 9 14 53992 0.0514 0.2335 0.15538 2006 9 15 53993 0.0495 0.2332 0.15507 2006 9 16 53994 0.0476 0.2330 0.15476 2006 9 17 53995 0.0456 0.2328 0.15437 2006 9 18 53996 0.0436 0.2326 0.15383 2006 9 19 53997 0.0416 0.2325 0.15311 2006 9 20 53998 0.0396 0.2323 0.15222 2006 9 21 53999 0.0376 0.2323 0.15119 2006 9 22 54000 0.0355 0.2322 0.15005 2006 9 23 54001 0.0335 0.2322 0.14888 2006 9 24 54002 0.0314 0.2322 0.14774 2006 9 25 54003 0.0293 0.2322 0.14671 2006 9 26 54004 0.0272 0.2323 0.14582 2006 9 27 54005 0.0251 0.2324 0.14511 2006 9 28 54006 0.0229 0.2325 0.14456 2006 9 29 54007 0.0208 0.2327 0.14414 2006 9 30 54008 0.0186 0.2329 0.14378 2006 10 1 54009 0.0164 0.2331 0.14338 2006 10 2 54010 0.0142 0.2334 0.14281 2006 10 3 54011 0.0120 0.2337 0.14197 2006 10 4 54012 0.0098 0.2340 0.14078 2006 10 5 54013 0.0076 0.2344 0.13926 2006 10 6 54014 0.0054 0.2348 0.13750 2006 10 7 54015 0.0031 0.2352 0.13570 2006 10 8 54016 0.0009 0.2357 0.13405 2006 10 9 54017 -0.0014 0.2362 0.13271 2006 10 10 54018 -0.0036 0.2368 0.13172 2006 10 11 54019 -0.0059 0.2373 0.13105 2006 10 12 54020 -0.0082 0.2380 0.13059 2006 10 13 54021 -0.0105 0.2386 0.13020 2006 10 14 54022 -0.0127 0.2393 0.12976 2006 10 15 54023 -0.0150 0.2400 0.12919 2006 10 16 54024 -0.0173 0.2407 0.12845 2006 10 17 54025 -0.0196 0.2415 0.12753 2006 10 18 54026 -0.0219 0.2424 0.12646 2006 10 19 54027 -0.0242 0.2432 0.12527 2006 10 20 54028 -0.0265 0.2441 0.12403 2006 10 21 54029 -0.0288 0.2450 0.12281 2006 10 22 54030 -0.0310 0.2460 0.12166 2006 10 23 54031 -0.0333 0.2470 0.12065 2006 10 24 54032 -0.0356 0.2481 0.11981 2006 10 25 54033 -0.0379 0.2491 0.11915 2006 10 26 54034 -0.0401 0.2502 0.11862 2006 10 27 54035 -0.0424 0.2514 0.11818 2006 10 28 54036 -0.0447 0.2526 0.11773 2006 10 29 54037 -0.0469 0.2538 0.11717 2006 10 30 54038 -0.0491 0.2550 0.11639 2006 10 31 54039 -0.0514 0.2563 0.11531 2006 11 1 54040 -0.0536 0.2576 0.11392 2006 11 2 54041 -0.0558 0.2590 0.11227 2006 11 3 54042 -0.0580 0.2604 0.11049 2006 11 4 54043 -0.0601 0.2618 0.10876 2006 11 5 54044 -0.0623 0.2632 0.10725 2006 11 6 54045 -0.0644 0.2647 0.10607 2006 11 7 54046 -0.0666 0.2663 0.10522 2006 11 8 54047 -0.0687 0.2678 0.10464 2006 11 9 54048 -0.0708 0.2694 0.10420 2006 11 10 54049 -0.0729 0.2710 0.10363 2006 11 11 54050 -0.0749 0.2727 0.10297 2006 11 12 54051 -0.0769 0.2744 0.10215 2006 11 13 54052 -0.0790 0.2761 0.10118 2006 11 14 54053 -0.0809 0.2778 0.10005 2006 11 15 54054 -0.0829 0.2796 0.09882 2006 11 16 54055 -0.0849 0.2814 0.09754 2006 11 17 54056 -0.0868 0.2833 0.09626 2006 11 18 54057 -0.0887 0.2852 0.09506 2006 11 19 54058 -0.0905 0.2871 0.09400 2006 11 20 54059 -0.0924 0.2890 0.09310 2006 11 21 54060 -0.0942 0.2910 0.09240 2006 11 22 54061 -0.0960 0.2930 0.09186 2006 11 23 54062 -0.0977 0.2950 0.09144 2006 11 24 54063 -0.0994 0.2970 0.09105 2006 11 25 54064 -0.1011 0.2991 0.09059 2006 11 26 54065 -0.1028 0.3012 0.08995 2006 11 27 54066 -0.1044 0.3033 0.08907 2006 11 28 54067 -0.1060 0.3055 0.08790 2006 11 29 54068 -0.1075 0.3077 0.08650 2006 11 30 54069 -0.1091 0.3099 0.08496 2006 12 1 54070 -0.1105 0.3121 0.08343 2006 12 2 54071 -0.1120 0.3144 0.08204 2006 12 3 54072 -0.1134 0.3167 0.08094 2006 12 4 54073 -0.1148 0.3190 0.08014 2006 12 5 54074 -0.1161 0.3213 0.07963 2006 12 6 54075 -0.1174 0.3236 0.07930 2006 12 7 54076 -0.1186 0.3260 0.07903 2006 12 8 54077 -0.1198 0.3284 0.07869 2006 12 9 54078 -0.1210 0.3308 0.07822 2006 12 10 54079 -0.1221 0.3332 0.07759 2006 12 11 54080 -0.1232 0.3356 0.07680 2006 12 12 54081 -0.1243 0.3381 0.07591 2006 12 13 54082 -0.1253 0.3406 0.07495 2006 12 14 54083 -0.1262 0.3431 0.07399 2006 12 15 54084 -0.1271 0.3456 0.07310 2006 12 16 54085 -0.1280 0.3481 0.07233 2006 12 17 54086 -0.1288 0.3507 0.07172 2006 12 18 54087 -0.1295 0.3532 0.07129 2006 12 19 54088 -0.1303 0.3558 0.07104 2006 12 20 54089 -0.1309 0.3584 0.07092 2006 12 21 54090 -0.1316 0.3610 0.07085 2006 12 22 54091 -0.1321 0.3636 0.07073 2006 12 23 54092 -0.1327 0.3662 0.07044 2006 12 24 54093 -0.1331 0.3688 0.06992 2006 12 25 54094 -0.1336 0.3715 0.06911 2006 12 26 54095 -0.1339 0.3741 0.06806 2006 12 27 54096 -0.1343 0.3768 0.06687 2006 12 28 54097 -0.1345 0.3794 0.06567 2006 12 29 54098 -0.1348 0.3821 0.06459 2006 12 30 54099 -0.1349 0.3848 0.06375 2006 12 31 54100 -0.1350 0.3874 0.06320 2007 1 1 54101 -0.1351 0.3901 0.06291 2007 1 2 54102 -0.1351 0.3928 0.06281 2007 1 3 54103 -0.1351 0.3955 0.06279 2007 1 4 54104 -0.1350 0.3982 0.06273 2007 1 5 54105 -0.1349 0.4009 0.06255 2007 1 6 54106 -0.1347 0.4036 0.06219 2007 1 7 54107 -0.1344 0.4062 0.06165 2007 1 8 54108 -0.1341 0.4089 0.06097 2007 1 9 54109 -0.1338 0.4116 0.06019 2007 1 10 54110 -0.1334 0.4143 0.05940 2007 1 11 54111 -0.1329 0.4170 0.05864 2007 1 12 54112 -0.1324 0.4197 0.05798 2007 1 13 54113 -0.1318 0.4223 0.05746 2007 1 14 54114 -0.1312 0.4250 0.05710 2007 1 15 54115 -0.1306 0.4277 0.05691 2007 1 16 54116 -0.1298 0.4303 0.05685 2007 1 17 54117 -0.1291 0.4330 0.05687 2007 1 18 54118 -0.1282 0.4356 0.05684 2007 1 19 54119 -0.1274 0.4382 0.05667 2007 1 20 54120 -0.1264 0.4409 0.05623 2007 1 21 54121 -0.1254 0.4435 0.05548 2007 1 22 54122 -0.1244 0.4461 0.05444 2007 1 23 54123 -0.1233 0.4486 0.05319 2007 1 24 54124 -0.1222 0.4512 0.05189 2007 1 25 54125 -0.1210 0.4538 0.05069 2007 1 26 54126 -0.1198 0.4563 0.04971 2007 1 27 54127 -0.1185 0.4588 0.04900 2007 1 28 54128 -0.1171 0.4613 0.04856 2007 1 29 54129 -0.1157 0.4638 0.04829 2007 1 30 54130 -0.1143 0.4663 0.04811 2007 1 31 54131 -0.1128 0.4688 0.04790 2007 2 1 54132 -0.1113 0.4712 0.04757 2007 2 2 54133 -0.1097 0.4736 0.04705 2007 2 3 54134 -0.1080 0.4760 0.04633 2007 2 4 54135 -0.1063 0.4784 0.04543 2007 2 5 54136 -0.1046 0.4808 0.04441 2007 2 6 54137 -0.1028 0.4831 0.04334 2007 2 7 54138 -0.1009 0.4854 0.04229 2007 2 8 54139 -0.0990 0.4877 0.04134 2007 2 9 54140 -0.0971 0.4900 0.04054 2007 2 10 54141 -0.0951 0.4923 0.03993 2007 2 11 54142 -0.0931 0.4945 0.03952 2007 2 12 54143 -0.0910 0.4967 0.03931 2007 2 13 54144 -0.0889 0.4988 0.03924 2007 2 14 54145 -0.0867 0.5010 0.03924 2007 2 15 54146 -0.0845 0.5031 0.03918 2007 2 16 54147 -0.0823 0.5052 0.03895 2007 2 17 54148 -0.0800 0.5072 0.03842 2007 2 18 54149 -0.0777 0.5092 0.03756 2007 2 19 54150 -0.0753 0.5112 0.03644 2007 2 20 54151 -0.0729 0.5132 0.03519 2007 2 21 54152 -0.0705 0.5151 0.03399 2007 2 22 54153 -0.0680 0.5170 0.03301 2007 2 23 54154 -0.0655 0.5189 0.03234 2007 2 24 54155 -0.0629 0.5207 0.03199 2007 2 25 54156 -0.0604 0.5225 0.03189 2007 2 26 54157 -0.0577 0.5242 0.03193 2007 2 27 54158 -0.0551 0.5260 0.03197 2007 2 28 54159 -0.0524 0.5277 0.03188 2007 3 1 54160 -0.0497 0.5293 0.03157 2007 3 2 54161 -0.0469 0.5309 0.03104 2007 3 3 54162 -0.0441 0.5325 0.03031 2007 3 4 54163 -0.0413 0.5341 0.02942 2007 3 5 54164 -0.0385 0.5356 0.02838 2007 3 6 54165 -0.0356 0.5370 0.02732 2007 3 7 54166 -0.0327 0.5384 0.02628 2007 3 8 54167 -0.0298 0.5398 0.02535 2007 3 9 54168 -0.0268 0.5412 0.02457 2007 3 10 54169 -0.0238 0.5425 0.02394 2007 3 11 54170 -0.0208 0.5437 0.02346 2007 3 12 54171 -0.0178 0.5450 0.02308 2007 3 13 54172 -0.0147 0.5461 0.02276 2007 3 14 54173 -0.0116 0.5473 0.02242 2007 3 15 54174 -0.0085 0.5484 0.02191 2007 3 16 54175 -0.0054 0.5494 0.02112 2007 3 17 54176 -0.0022 0.5504 0.01999 2007 3 18 54177 0.0009 0.5514 0.01855 2007 3 19 54178 0.0041 0.5523 0.01697 2007 3 20 54179 0.0073 0.5532 0.01535 2007 3 21 54180 0.0105 0.5540 0.01393 2007 3 22 54181 0.0138 0.5548 0.01289 2007 3 23 54182 0.0170 0.5556 0.01228 2007 3 24 54183 0.0203 0.5563 0.01198 2007 3 25 54184 0.0236 0.5569 0.01185 2007 3 26 54185 0.0269 0.5575 0.01182 2007 3 27 54186 0.0302 0.5581 0.01167 2007 3 28 54187 0.0335 0.5586 0.01140 2007 3 29 54188 0.0368 0.5590 0.01088 2007 3 30 54189 0.0402 0.5595 0.01007 2007 3 31 54190 0.0435 0.5598 0.00914 2007 4 1 54191 0.0469 0.5601 0.00814 2007 4 2 54192 0.0503 0.5604 0.00713 2007 4 3 54193 0.0536 0.5606 0.00616 2007 4 4 54194 0.0570 0.5608 0.00527 2007 4 5 54195 0.0604 0.5609 0.00450 2007 4 6 54196 0.0638 0.5610 0.00387 2007 4 7 54197 0.0672 0.5610 0.00342 2007 4 8 54198 0.0706 0.5610 0.00309 2007 4 9 54199 0.0740 0.5610 0.00281 2007 4 10 54200 0.0774 0.5608 0.00249 2007 4 11 54201 0.0808 0.5607 0.00202 2007 4 12 54202 0.0842 0.5605 0.00134 2007 4 13 54203 0.0876 0.5602 0.00041 2007 4 14 54204 0.0910 0.5599 -0.00075 2007 4 15 54205 0.0944 0.5595 -0.00223 2007 4 16 54206 0.0978 0.5591 -0.00385 2007 4 17 54207 0.1012 0.5586 -0.00539 2007 4 18 54208 0.1045 0.5581 -0.00670 2007 4 19 54209 0.1079 0.5575 -0.00768 2007 4 20 54210 0.1113 0.5569 -0.00830 2007 4 21 54211 0.1146 0.5563 -0.00868 2007 4 22 54212 0.1180 0.5555 -0.00892 2007 4 23 54213 0.1214 0.5548 -0.00914 2007 4 24 54214 0.1247 0.5540 -0.00935 2007 4 25 54215 0.1280 0.5531 -0.00970 2007 4 26 54216 0.1313 0.5522 -0.01020 2007 4 27 54217 0.1346 0.5512 -0.01085 2007 4 28 54218 0.1379 0.5502 -0.01156 2007 4 29 54219 0.1412 0.5491 -0.01237 2007 4 30 54220 0.1445 0.5480 -0.01314 2007 5 1 54221 0.1477 0.5468 -0.01379 2007 5 2 54222 0.1510 0.5456 -0.01429 2007 5 3 54223 0.1542 0.5444 -0.01461 2007 5 4 54224 0.1574 0.5430 -0.01471 2007 5 5 54225 0.1606 0.5417 -0.01459 2007 5 6 54226 0.1637 0.5403 -0.01435 2007 5 7 54227 0.1669 0.5388 -0.01407 2007 5 8 54228 0.1700 0.5373 -0.01389 2007 5 9 54229 0.1731 0.5357 -0.01395 2007 5 10 54230 0.1762 0.5341 -0.01426 2007 5 11 54231 0.1793 0.5325 -0.01486 2007 5 12 54232 0.1823 0.5308 -0.01573 2007 5 13 54233 0.1853 0.5290 -0.01673 2007 5 14 54234 0.1883 0.5272 -0.01772 2007 5 15 54235 0.1913 0.5254 -0.01851 2007 5 16 54236 0.1943 0.5235 -0.01893 2007 5 17 54237 0.1972 0.5216 -0.01896 2007 5 18 54238 0.2001 0.5196 -0.01869 2007 5 19 54239 0.2029 0.5175 -0.01824 2007 5 20 54240 0.2058 0.5155 -0.01770 2007 5 21 54241 0.2086 0.5133 -0.01726 2007 5 22 54242 0.2114 0.5112 -0.01701 2007 5 23 54243 0.2141 0.5090 -0.01697 2007 5 24 54244 0.2169 0.5067 -0.01710 2007 5 25 54245 0.2196 0.5044 -0.01734 2007 5 26 54246 0.2222 0.5021 -0.01760 2007 5 27 54247 0.2249 0.4997 -0.01772 2007 5 28 54248 0.2275 0.4972 -0.01770 2007 5 29 54249 0.2300 0.4948 -0.01755 2007 5 30 54250 0.2326 0.4923 -0.01725 2007 5 31 54251 0.2351 0.4897 -0.01679 2007 6 1 54252 0.2375 0.4871 -0.01616 2007 6 2 54253 0.2399 0.4845 -0.01539 2007 6 3 54254 0.2423 0.4818 -0.01460 2007 6 4 54255 0.2447 0.4791 -0.01385 2007 6 5 54256 0.2470 0.4763 -0.01324 2007 6 6 54257 0.2493 0.4735 -0.01291 2007 6 7 54258 0.2515 0.4707 -0.01284 2007 6 8 54259 0.2537 0.4678 -0.01306 2007 6 9 54260 0.2559 0.4649 -0.01350 2007 6 10 54261 0.2580 0.4620 -0.01406 2007 6 11 54262 0.2601 0.4590 -0.01456 2007 6 12 54263 0.2621 0.4560 -0.01486 2007 6 13 54264 0.2641 0.4529 -0.01487 2007 6 14 54265 0.2661 0.4498 -0.01456 2007 6 15 54266 0.2680 0.4467 -0.01403 2007 6 16 54267 0.2698 0.4435 -0.01336 2007 6 17 54268 0.2717 0.4404 -0.01270 2007 6 18 54269 0.2734 0.4371 -0.01219 2007 6 19 54270 0.2752 0.4339 -0.01187 2007 6 20 54271 0.2769 0.4306 -0.01166 2007 6 21 54272 0.2785 0.4273 -0.01155 2007 6 22 54273 0.2801 0.4240 -0.01155 2007 6 23 54274 0.2816 0.4206 -0.01154 2007 6 24 54275 0.2831 0.4172 -0.01143 2007 6 25 54276 0.2846 0.4138 -0.01113 2007 6 26 54277 0.2860 0.4103 -0.01057 2007 6 27 54278 0.2873 0.4068 -0.00974 2007 6 28 54279 0.2886 0.4033 -0.00870 2007 6 29 54280 0.2899 0.3998 -0.00755 2007 6 30 54281 0.2911 0.3963 -0.00627 2007 7 1 54282 0.2922 0.3927 -0.00494 2007 7 2 54283 0.2933 0.3891 -0.00367 2007 7 3 54284 0.2943 0.3855 -0.00261 2007 7 4 54285 0.2953 0.3819 -0.00184 2007 7 5 54286 0.2962 0.3782 -0.00139 2007 7 6 54287 0.2971 0.3745 -0.00122 2007 7 7 54288 0.2979 0.3708 -0.00115 2007 7 8 54289 0.2987 0.3671 -0.00112 2007 7 9 54290 0.2994 0.3634 -0.00088 2007 7 10 54291 0.3001 0.3597 -0.00038 2007 7 11 54292 0.3007 0.3559 0.00035 2007 7 12 54293 0.3012 0.3521 0.00123 2007 7 13 54294 0.3017 0.3484 0.00223 2007 7 14 54295 0.3021 0.3446 0.00325 2007 7 15 54296 0.3025 0.3408 0.00413 2007 7 16 54297 0.3028 0.3370 0.00478 2007 7 17 54298 0.3031 0.3331 0.00512 2007 7 18 54299 0.3033 0.3293 0.00535 2007 7 19 54300 0.3034 0.3255 0.00548 2007 7 20 54301 0.3035 0.3216 0.00552 2007 7 21 54302 0.3035 0.3178 0.00560 2007 7 22 54303 0.3034 0.3139 0.00576 2007 7 23 54304 0.3033 0.3101 0.00605 2007 7 24 54305 0.3032 0.3062 0.00648 2007 7 25 54306 0.3029 0.3023 0.00713 2007 7 26 54307 0.3026 0.2985 0.00795 2007 7 27 54308 0.3023 0.2946 0.00889 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) 53924 -61.28 .16 -5.94 .34 53925 -61.20 .15 -5.94 .34 53926 -61.11 .17 -5.93 .34 53927 -61.03 .11 -5.91 .34 53928 -60.94 .12 -5.82 .34 53929 -60.91 .12 -5.66 .34 53930 -61.11 .12 -5.54 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 53924 -0.068 0.064 -0.298 0.340 53925 -0.055 0.060 -0.275 0.340 53926 -0.053 0.068 -0.277 0.340 53927 -0.055 0.044 -0.281 0.340 53928 -0.064 0.048 -0.284 0.340 53929 -0.070 0.048 -0.293 0.340 53930 -0.073 0.048 -0.308 0.340 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 **************************************************************************