********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 11 January 2007 Vol. XX No. 002 ______________________________________________________________________ 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 = +0.0 seconds beginning 22 December 2006 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 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 7 1 5 54105 -.05447 .00004 .35236 .00003 .035248 .000018 7 1 6 54106 -.05582 .00004 .35385 .00004 .034466 .000017 7 1 7 54107 -.05666 .00003 .35527 .00003 .033476 .000014 7 1 8 54108 -.05712 .00003 .35683 .00003 .032317 .000012 7 1 9 54109 -.05751 .00003 .35872 .00002 .031045 .000013 7 1 10 54110 -.05805 .00003 .36085 .00002 .029703 .000012 7 1 11 54111 -.05891 .00002 .36302 .00001 .028358 .000007 _______________________________________________________________________ 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 = .0574 - .0448 cos A - .0779 sin A - .0729 cos C + .0946 sin C y = .3385 - .0673 cos A + .0386 sin A + .0946 cos C + .0729 sin C UT1-UTC = .0110 - .00090 (MJD - 54116) - (UT2-UT1) where A = 2*pi*(MJD-54111)/365.25 and C = 2*pi*(MJD-54111)/435. TAI-UTC(MJD 54112) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54111)**0.80 S t = 0.00025 (MJD-54111)**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) 2007 1 12 54112 -0.0598 0.3651 0.02709 2007 1 13 54113 -0.0606 0.3672 0.02597 2007 1 14 54114 -0.0612 0.3691 0.02501 2007 1 15 54115 -0.0617 0.3710 0.02421 2007 1 16 54116 -0.0621 0.3728 0.02353 2007 1 17 54117 -0.0624 0.3746 0.02292 2007 1 18 54118 -0.0627 0.3764 0.02230 2007 1 19 54119 -0.0628 0.3781 0.02154 2007 1 20 54120 -0.0628 0.3798 0.02054 2007 1 21 54121 -0.0628 0.3814 0.01928 2007 1 22 54122 -0.0626 0.3831 0.01776 2007 1 23 54123 -0.0625 0.3847 0.01605 2007 1 24 54124 -0.0622 0.3863 0.01428 2007 1 25 54125 -0.0619 0.3879 0.01261 2007 1 26 54126 -0.0615 0.3895 0.01118 2007 1 27 54127 -0.0611 0.3911 0.01005 2007 1 28 54128 -0.0606 0.3927 0.00920 2007 1 29 54129 -0.0601 0.3942 0.00857 2007 1 30 54130 -0.0596 0.3958 0.00802 2007 1 31 54131 -0.0590 0.3974 0.00746 2007 2 1 54132 -0.0583 0.3989 0.00678 2007 2 2 54133 -0.0576 0.4005 0.00592 2007 2 3 54134 -0.0569 0.4020 0.00487 2007 2 4 54135 -0.0561 0.4036 0.00363 2007 2 5 54136 -0.0553 0.4051 0.00226 2007 2 6 54137 -0.0545 0.4067 0.00084 2007 2 7 54138 -0.0537 0.4082 -0.00057 2007 2 8 54139 -0.0528 0.4097 -0.00190 2007 2 9 54140 -0.0518 0.4113 -0.00309 2007 2 10 54141 -0.0509 0.4128 -0.00411 2007 2 11 54142 -0.0499 0.4143 -0.00497 2007 2 12 54143 -0.0489 0.4158 -0.00567 2007 2 13 54144 -0.0478 0.4173 -0.00628 2007 2 14 54145 -0.0468 0.4188 -0.00688 2007 2 15 54146 -0.0457 0.4203 -0.00757 2007 2 16 54147 -0.0445 0.4218 -0.00848 2007 2 17 54148 -0.0434 0.4233 -0.00970 2007 2 18 54149 -0.0422 0.4247 -0.01125 2007 2 19 54150 -0.0410 0.4262 -0.01306 2007 2 20 54151 -0.0398 0.4276 -0.01500 2007 2 21 54152 -0.0385 0.4291 -0.01687 2007 2 22 54153 -0.0373 0.4305 -0.01853 2007 2 23 54154 -0.0360 0.4319 -0.01988 2007 2 24 54155 -0.0346 0.4333 -0.02091 2007 2 25 54156 -0.0333 0.4347 -0.02171 2007 2 26 54157 -0.0319 0.4361 -0.02238 2007 2 27 54158 -0.0305 0.4374 -0.02306 2007 2 28 54159 -0.0291 0.4388 -0.02384 2007 3 1 54160 -0.0276 0.4401 -0.02478 2007 3 2 54161 -0.0262 0.4414 -0.02592 2007 3 3 54162 -0.0247 0.4427 -0.02724 2007 3 4 54163 -0.0232 0.4440 -0.02871 2007 3 5 54164 -0.0216 0.4453 -0.03026 2007 3 6 54165 -0.0201 0.4465 -0.03184 2007 3 7 54166 -0.0185 0.4478 -0.03337 2007 3 8 54167 -0.0169 0.4490 -0.03480 2007 3 9 54168 -0.0153 0.4502 -0.03608 2007 3 10 54169 -0.0136 0.4513 -0.03719 2007 3 11 54170 -0.0119 0.4525 -0.03817 2007 3 12 54171 -0.0103 0.4536 -0.03903 2007 3 13 54172 -0.0085 0.4547 -0.03986 2007 3 14 54173 -0.0068 0.4558 -0.04075 2007 3 15 54174 -0.0051 0.4568 -0.04182 2007 3 16 54175 -0.0033 0.4579 -0.04316 2007 3 17 54176 -0.0015 0.4588 -0.04485 2007 3 18 54177 0.0003 0.4598 -0.04686 2007 3 19 54178 0.0022 0.4608 -0.04908 2007 3 20 54179 0.0040 0.4617 -0.05135 2007 3 21 54180 0.0059 0.4627 -0.05346 2007 3 22 54181 0.0078 0.4636 -0.05527 2007 3 23 54182 0.0097 0.4644 -0.05674 2007 3 24 54183 0.0116 0.4653 -0.05790 2007 3 25 54184 0.0135 0.4661 -0.05888 2007 3 26 54185 0.0155 0.4669 -0.05981 2007 3 27 54186 0.0175 0.4676 -0.06080 2007 3 28 54187 0.0195 0.4683 -0.06193 2007 3 29 54188 0.0215 0.4690 -0.06324 2007 3 30 54189 0.0235 0.4697 -0.06472 2007 3 31 54190 0.0255 0.4703 -0.06634 2007 4 1 54191 0.0276 0.4709 -0.06805 2007 4 2 54192 0.0296 0.4715 -0.06978 2007 4 3 54193 0.0317 0.4720 -0.07146 2007 4 4 54194 0.0338 0.4726 -0.07303 2007 4 5 54195 0.0359 0.4730 -0.07445 2007 4 6 54196 0.0380 0.4735 -0.07569 2007 4 7 54197 0.0402 0.4739 -0.07676 2007 4 8 54198 0.0423 0.4743 -0.07770 2007 4 9 54199 0.0445 0.4746 -0.07858 2007 4 10 54200 0.0466 0.4749 -0.07946 2007 4 11 54201 0.0488 0.4752 -0.08047 2007 4 12 54202 0.0510 0.4755 -0.08168 2007 4 13 54203 0.0532 0.4757 -0.08320 2007 4 14 54204 0.0554 0.4759 -0.08504 2007 4 15 54205 0.0576 0.4760 -0.08715 2007 4 16 54206 0.0598 0.4761 -0.08939 2007 4 17 54207 0.0620 0.4762 -0.09157 2007 4 18 54208 0.0643 0.4762 -0.09352 2007 4 19 54209 0.0667 0.4762 -0.09514 2007 4 20 54210 0.0689 0.4762 -0.09641 2007 4 21 54211 0.0711 0.4761 -0.09743 2007 4 22 54212 0.0734 0.4760 -0.09834 2007 4 23 54213 0.0756 0.4759 -0.09927 2007 4 24 54214 0.0779 0.4757 -0.10032 2007 4 25 54215 0.0801 0.4755 -0.10154 2007 4 26 54216 0.0824 0.4752 -0.10293 2007 4 27 54217 0.0846 0.4749 -0.10441 2007 4 28 54218 0.0869 0.4746 -0.10596 2007 4 29 54219 0.0891 0.4742 -0.10753 2007 4 30 54220 0.0914 0.4738 -0.10906 2007 5 1 54221 0.0936 0.4734 -0.11047 2007 5 2 54222 0.0959 0.4729 -0.11173 2007 5 3 54223 0.0981 0.4724 -0.11280 2007 5 4 54224 0.1004 0.4719 -0.11369 2007 5 5 54225 0.1026 0.4713 -0.11442 2007 5 6 54226 0.1048 0.4707 -0.11505 2007 5 7 54227 0.1071 0.4700 -0.11565 2007 5 8 54228 0.1093 0.4693 -0.11633 2007 5 9 54229 0.1115 0.4686 -0.11716 2007 5 10 54230 0.1137 0.4678 -0.11823 2007 5 11 54231 0.1159 0.4670 -0.11958 2007 5 12 54232 0.1181 0.4662 -0.12118 2007 5 13 54233 0.1203 0.4653 -0.12294 2007 5 14 54234 0.1225 0.4644 -0.12471 2007 5 15 54235 0.1247 0.4635 -0.12633 2007 5 16 54236 0.1268 0.4625 -0.12766 2007 5 17 54237 0.1290 0.4615 -0.12863 2007 5 18 54238 0.1311 0.4604 -0.12931 2007 5 19 54239 0.1332 0.4594 -0.12980 2007 5 20 54240 0.1353 0.4582 -0.13024 2007 5 21 54241 0.1374 0.4571 -0.13077 2007 5 22 54242 0.1395 0.4559 -0.13145 2007 5 23 54243 0.1416 0.4547 -0.13229 2007 5 24 54244 0.1436 0.4534 -0.13325 2007 5 25 54245 0.1457 0.4521 -0.13430 2007 5 26 54246 0.1477 0.4508 -0.13537 2007 5 27 54247 0.1497 0.4494 -0.13639 2007 5 28 54248 0.1517 0.4481 -0.13731 2007 5 29 54249 0.1536 0.4466 -0.13807 2007 5 30 54250 0.1556 0.4452 -0.13864 2007 5 31 54251 0.1575 0.4437 -0.13902 2007 6 1 54252 0.1594 0.4422 -0.13924 2007 6 2 54253 0.1613 0.4406 -0.13933 2007 6 3 54254 0.1631 0.4391 -0.13938 2007 6 4 54255 0.1650 0.4375 -0.13948 2007 6 5 54256 0.1668 0.4358 -0.13971 2007 6 6 54257 0.1686 0.4342 -0.14016 2007 6 7 54258 0.1703 0.4325 -0.14085 2007 6 8 54259 0.1721 0.4308 -0.14177 2007 6 9 54260 0.1738 0.4290 -0.14287 2007 6 10 54261 0.1755 0.4273 -0.14401 2007 6 11 54262 0.1772 0.4255 -0.14506 2007 6 12 54263 0.1788 0.4236 -0.14588 2007 6 13 54264 0.1804 0.4218 -0.14639 2007 6 14 54265 0.1820 0.4199 -0.14661 2007 6 15 54266 0.1836 0.4180 -0.14660 2007 6 16 54267 0.1851 0.4161 -0.14651 2007 6 17 54268 0.1866 0.4142 -0.14647 2007 6 18 54269 0.1881 0.4122 -0.14657 2007 6 19 54270 0.1895 0.4102 -0.14684 2007 6 20 54271 0.1909 0.4082 -0.14728 2007 6 21 54272 0.1923 0.4062 -0.14782 2007 6 22 54273 0.1937 0.4041 -0.14841 2007 6 23 54274 0.1950 0.4020 -0.14896 2007 6 24 54275 0.1963 0.3999 -0.14942 2007 6 25 54276 0.1975 0.3978 -0.14975 2007 6 26 54277 0.1988 0.3957 -0.14989 2007 6 27 54278 0.2000 0.3936 -0.14985 2007 6 28 54279 0.2011 0.3914 -0.14964 2007 6 29 54280 0.2022 0.3892 -0.14930 2007 6 30 54281 0.2033 0.3870 -0.14891 2007 7 1 54282 0.2044 0.3848 -0.14856 2007 7 2 54283 0.2054 0.3826 -0.14833 2007 7 3 54284 0.2064 0.3804 -0.14832 2007 7 4 54285 0.2073 0.3781 -0.14857 2007 7 5 54286 0.2083 0.3759 -0.14906 2007 7 6 54287 0.2091 0.3736 -0.14972 2007 7 7 54288 0.2100 0.3713 -0.15046 2007 7 8 54289 0.2108 0.3690 -0.15112 2007 7 9 54290 0.2116 0.3667 -0.15160 2007 7 10 54291 0.2123 0.3644 -0.15180 2007 7 11 54292 0.2130 0.3621 -0.15173 2007 7 12 54293 0.2136 0.3597 -0.15145 2007 7 13 54294 0.2143 0.3574 -0.15106 2007 7 14 54295 0.2148 0.3551 -0.15071 2007 7 15 54296 0.2154 0.3527 -0.15049 2007 7 16 54297 0.2159 0.3504 -0.15048 2007 7 17 54298 0.2164 0.3480 -0.15067 2007 7 18 54299 0.2168 0.3456 -0.15103 2007 7 19 54300 0.2172 0.3433 -0.15149 2007 7 20 54301 0.2175 0.3409 -0.15197 2007 7 21 54302 0.2178 0.3385 -0.15241 2007 7 22 54303 0.2181 0.3361 -0.15275 2007 7 23 54304 0.2183 0.3337 -0.15295 2007 7 24 54305 0.2185 0.3314 -0.15301 2007 7 25 54306 0.2187 0.3290 -0.15292 2007 7 26 54307 0.2188 0.3266 -0.15272 2007 7 27 54308 0.2188 0.3242 -0.15247 2007 7 28 54309 0.2189 0.3218 -0.15227 2007 7 29 54310 0.2189 0.3194 -0.15221 2007 7 30 54311 0.2188 0.3171 -0.15239 2007 7 31 54312 0.2187 0.3147 -0.15288 2007 8 1 54313 0.2186 0.3123 -0.15367 2007 8 2 54314 0.2184 0.3100 -0.15471 2007 8 3 54315 0.2182 0.3076 -0.15587 2007 8 4 54316 0.2180 0.3053 -0.15698 2007 8 5 54317 0.2177 0.3029 -0.15790 2007 8 6 54318 0.2174 0.3006 -0.15852 2007 8 7 54319 0.2170 0.2983 -0.15880 2007 8 8 54320 0.2166 0.2960 -0.15881 2007 8 9 54321 0.2161 0.2937 -0.15863 2007 8 10 54322 0.2157 0.2914 -0.15841 2007 8 11 54323 0.2151 0.2891 -0.15825 2007 8 12 54324 0.2146 0.2868 -0.15823 2007 8 13 54325 0.2140 0.2846 -0.15837 2007 8 14 54326 0.2133 0.2823 -0.15862 2007 8 15 54327 0.2126 0.2801 -0.15894 2007 8 16 54328 0.2119 0.2779 -0.15927 2007 8 17 54329 0.2112 0.2757 -0.15952 2007 8 18 54330 0.2104 0.2735 -0.15962 2007 8 19 54331 0.2095 0.2713 -0.15952 2007 8 20 54332 0.2087 0.2691 -0.15925 2007 8 21 54333 0.2078 0.2670 -0.15883 2007 8 22 54334 0.2068 0.2649 -0.15826 2007 8 23 54335 0.2058 0.2627 -0.15760 2007 8 24 54336 0.2048 0.2607 -0.15698 2007 8 25 54337 0.2037 0.2586 -0.15650 2007 8 26 54338 0.2026 0.2565 -0.15629 2007 8 27 54339 0.2015 0.2545 -0.15640 2007 8 28 54340 0.2003 0.2525 -0.15688 2007 8 29 54341 0.1991 0.2505 -0.15764 2007 8 30 54342 0.1979 0.2485 -0.15865 2007 8 31 54343 0.1966 0.2465 -0.15972 2007 9 1 54344 0.1953 0.2446 -0.16066 2007 9 2 54345 0.1940 0.2427 -0.16134 2007 9 3 54346 0.1926 0.2408 -0.16169 2007 9 4 54347 0.1912 0.2389 -0.16183 2007 9 5 54348 0.1897 0.2371 -0.16180 2007 9 6 54349 0.1882 0.2352 -0.16176 2007 9 7 54350 0.1867 0.2334 -0.16189 2007 9 8 54351 0.1852 0.2317 -0.16226 2007 9 9 54352 0.1836 0.2299 -0.16289 2007 9 10 54353 0.1820 0.2282 -0.16367 2007 9 11 54354 0.1803 0.2265 -0.16455 2007 9 12 54355 0.1786 0.2248 -0.16548 2007 9 13 54356 0.1769 0.2231 -0.16641 2007 9 14 54357 0.1752 0.2215 -0.16731 2007 9 15 54358 0.1734 0.2199 -0.16815 2007 9 16 54359 0.1716 0.2183 -0.16886 2007 9 17 54360 0.1698 0.2168 -0.16945 2007 9 18 54361 0.1679 0.2153 -0.17000 2007 9 19 54362 0.1660 0.2138 -0.17051 2007 9 20 54363 0.1641 0.2123 -0.17097 2007 9 21 54364 0.1622 0.2109 -0.17150 2007 9 22 54365 0.1602 0.2095 -0.17216 2007 9 23 54366 0.1582 0.2081 -0.17299 2007 9 24 54367 0.1562 0.2067 -0.17407 2007 9 25 54368 0.1541 0.2054 -0.17541 2007 9 26 54369 0.1520 0.2041 -0.17698 2007 9 27 54370 0.1499 0.2028 -0.17863 2007 9 28 54371 0.1478 0.2016 -0.18026 2007 9 29 54372 0.1456 0.2004 -0.18166 2007 9 30 54373 0.1435 0.1992 -0.18277 2007 10 1 54374 0.1413 0.1981 -0.18359 2007 10 2 54375 0.1390 0.1970 -0.18419 2007 10 3 54376 0.1368 0.1959 -0.18463 2007 10 4 54377 0.1345 0.1948 -0.18507 2007 10 5 54378 0.1322 0.1938 -0.18568 2007 10 6 54379 0.1299 0.1928 -0.18652 2007 10 7 54380 0.1276 0.1919 -0.18748 2007 10 8 54381 0.1252 0.1910 -0.18850 2007 10 9 54382 0.1229 0.1901 -0.18954 2007 10 10 54383 0.1205 0.1892 -0.19056 2007 10 11 54384 0.1181 0.1884 -0.19151 2007 10 12 54385 0.1156 0.1876 -0.19230 2007 10 13 54386 0.1132 0.1868 -0.19291 2007 10 14 54387 0.1107 0.1861 -0.19335 2007 10 15 54388 0.1083 0.1854 -0.19364 2007 10 16 54389 0.1058 0.1847 -0.19381 2007 10 17 54390 0.1033 0.1841 -0.19386 2007 10 18 54391 0.1007 0.1835 -0.19389 2007 10 19 54392 0.0982 0.1829 -0.19400 2007 10 20 54393 0.0956 0.1824 -0.19431 2007 10 21 54394 0.0931 0.1819 -0.19490 2007 10 22 54395 0.0905 0.1815 -0.19577 2007 10 23 54396 0.0879 0.1810 -0.19693 2007 10 24 54397 0.0853 0.1806 -0.19832 2007 10 25 54398 0.0827 0.1803 -0.19981 2007 10 26 54399 0.0801 0.1800 -0.20111 2007 10 27 54400 0.0775 0.1797 -0.20210 2007 10 28 54401 0.0748 0.1794 -0.20279 2007 10 29 54402 0.0722 0.1792 -0.20323 2007 10 30 54403 0.0695 0.1790 -0.20355 2007 10 31 54404 0.0669 0.1789 -0.20387 2007 11 1 54405 0.0642 0.1788 -0.20436 2007 11 2 54406 0.0615 0.1787 -0.20507 2007 11 3 54407 0.0589 0.1786 -0.20602 2007 11 4 54408 0.0562 0.1786 -0.20712 2007 11 5 54409 0.0535 0.1787 -0.20831 2007 11 6 54410 0.0508 0.1787 -0.20946 2007 11 7 54411 0.0481 0.1788 -0.21050 2007 11 8 54412 0.0454 0.1789 -0.21143 2007 11 9 54413 0.0427 0.1791 -0.21219 2007 11 10 54414 0.0400 0.1793 -0.21270 2007 11 11 54415 0.0373 0.1796 -0.21300 2007 11 12 54416 0.0346 0.1798 -0.21315 2007 11 13 54417 0.0319 0.1802 -0.21316 2007 11 14 54418 0.0292 0.1805 -0.21312 2007 11 15 54419 0.0265 0.1809 -0.21313 2007 11 16 54420 0.0238 0.1813 -0.21325 2007 11 17 54421 0.0211 0.1818 -0.21349 2007 11 18 54422 0.0184 0.1822 -0.21399 2007 11 19 54423 0.0158 0.1828 -0.21476 2007 11 20 54424 0.0131 0.1833 -0.21573 2007 11 21 54425 0.0104 0.1839 -0.21677 2007 11 22 54426 0.0077 0.1846 -0.21775 2007 11 23 54427 0.0051 0.1852 -0.21850 2007 11 24 54428 0.0024 0.1859 -0.21901 2007 11 25 54429 -0.0002 0.1867 -0.21933 2007 11 26 54430 -0.0028 0.1875 -0.21954 2007 11 27 54431 -0.0055 0.1883 -0.21977 2007 11 28 54432 -0.0081 0.1891 -0.22015 2007 11 29 54433 -0.0107 0.1900 -0.22077 2007 11 30 54434 -0.0133 0.1909 -0.22163 2007 12 1 54435 -0.0158 0.1919 -0.22264 2007 12 2 54436 -0.0184 0.1929 -0.22371 2007 12 3 54437 -0.0210 0.1939 -0.22483 2007 12 4 54438 -0.0235 0.1949 -0.22583 2007 12 5 54439 -0.0260 0.1960 -0.22667 2007 12 6 54440 -0.0285 0.1972 -0.22731 2007 12 7 54441 -0.0310 0.1983 -0.22772 2007 12 8 54442 -0.0335 0.1995 -0.22794 2007 12 9 54443 -0.0360 0.2008 -0.22797 2007 12 10 54444 -0.0384 0.2020 -0.22792 2007 12 11 54445 -0.0408 0.2033 -0.22787 2007 12 12 54446 -0.0432 0.2047 -0.22792 2007 12 13 54447 -0.0456 0.2060 -0.22813 2007 12 14 54448 -0.0480 0.2075 -0.22848 2007 12 15 54449 -0.0503 0.2089 -0.22904 2007 12 16 54450 -0.0526 0.2104 -0.22978 2007 12 17 54451 -0.0549 0.2119 -0.23068 2007 12 18 54452 -0.0572 0.2134 -0.23173 2007 12 19 54453 -0.0595 0.2150 -0.23283 2007 12 20 54454 -0.0617 0.2166 -0.23385 2007 12 21 54455 -0.0639 0.2182 -0.23465 2007 12 22 54456 -0.0661 0.2199 -0.23518 2007 12 23 54457 -0.0683 0.2216 -0.23549 2007 12 24 54458 -0.0704 0.2233 -0.23569 2007 12 25 54459 -0.0725 0.2251 -0.23590 2007 12 26 54460 -0.0746 0.2269 -0.23627 2007 12 27 54461 -0.0766 0.2287 -0.23687 2007 12 28 54462 -0.0786 0.2306 -0.23766 2007 12 29 54463 -0.0806 0.2325 -0.23859 2007 12 30 54464 -0.0826 0.2344 -0.23948 2007 12 31 54465 -0.0845 0.2363 -0.24032 2008 1 1 54466 -0.0864 0.2383 -0.24104 2008 1 2 54467 -0.0883 0.2403 -0.24159 2008 1 3 54468 -0.0902 0.2424 -0.24200 2008 1 4 54469 -0.0920 0.2444 -0.24227 2008 1 5 54470 -0.0937 0.2465 -0.24244 2008 1 6 54471 -0.0955 0.2487 -0.24247 2008 1 7 54472 -0.0972 0.2508 -0.24239 2008 1 8 54473 -0.0989 0.2530 -0.24225 2008 1 9 54474 -0.1005 0.2552 -0.24212 2008 1 10 54475 -0.1021 0.2574 -0.24214 2008 1 11 54476 -0.1037 0.2597 -0.24234 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) 54085 -58.71 .48 -1.93 .14 54086 -58.81 .47 -2.07 .14 54087 -58.88 .47 -2.32 .14 54088 -58.90 .46 -2.51 .14 54089 -58.86 .33 -2.56 .34 54090 -58.73 .33 -2.47 .34 54091 -58.50 .33 -2.32 .34 54092 -58.23 .10 -2.21 .34 54093 -58.00 .10 -2.19 .34 54094 -57.89 .10 -2.24 .34 54095 -57.90 .74 -2.28 .34 54096 -58.03 .21 -2.23 .34 54097 -58.26 .21 -2.11 .34 54098 -58.53 .21 -1.95 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54085 0.116 0.191 -0.023 0.140 54086 0.113 0.187 -0.048 0.140 54087 0.119 0.187 -0.085 0.140 54088 0.146 0.183 -0.093 0.140 54089 0.177 0.131 -0.091 0.340 54090 0.192 0.131 -0.077 0.340 54091 0.191 0.131 -0.048 0.340 54092 0.180 0.040 -0.022 0.340 54093 0.170 0.040 -0.019 0.340 54094 0.158 0.040 -0.041 0.340 54095 0.153 0.294 -0.064 0.340 54096 0.151 0.084 -0.057 0.340 54097 0.147 0.084 -0.055 0.340 54098 0.140 0.084 -0.045 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.