********************************************************************** * * * I E R S B U L L E T I N - A * * * * Rapid Service/Prediction of Earth Orientation * ********************************************************************** 1 March 2007 Vol. XX No. 009 ______________________________________________________________________ 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 15 March 2007 at 0000 UTC Beginning 1 January 2006: TAI-UTC(BIPM) = 33.000 000 seconds ********************************************************************** * As of Bulletin A Vol. XX, No. 009, on 01 March 2007, we have * * incorporated the new IGS GPS solution igs00p03. The effect * * appears to be less than 0.10 mas in polar motion. * ********************************************************************** ________________________________________________________________________ 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 2 23 54154 -.02351 .00010 .43561 .00009 -.027286 .000010 7 2 24 54155 -.02128 .00010 .43679 .00010 -.028034 .000009 7 2 25 54156 -.01916 .00009 .43783 .00010 -.028562 .000009 7 2 26 54157 -.01743 .00009 .43894 .00010 -.029013 .000007 7 2 27 54158 -.01592 .00009 .44020 .00010 -.029456 .000007 7 2 28 54159 -.01462 .00009 .44172 .00010 -.029947 .000048 7 3 1 54160 -.01371 .00010 .44337 .00010 -.030596 .000057 _______________________________________________________________________ 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 = .0590 - .0810 cos A - .0070 sin A + .0065 cos C + .1073 sin C y = .3441 - .0065 cos A + .0706 sin A + .1073 cos C - .0065 sin C UT1-UTC = -.0329 - .00095 (MJD - 54165) - (UT2-UT1) where A = 2*pi*(MJD-54160)/365.25 and C = 2*pi*(MJD-54160)/435. TAI-UTC(MJD 54161) = 33.0 The accuracy may be estimated from the expressions: S x,y = 0.00068 (MJD-54160)**0.80 S t = 0.00025 (MJD-54160)**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 3 2 54161 -0.0125 0.4447 -0.03144 2007 3 3 54162 -0.0116 0.4459 -0.03247 2007 3 4 54163 -0.0104 0.4471 -0.03367 2007 3 5 54164 -0.0090 0.4481 -0.03496 2007 3 6 54165 -0.0075 0.4491 -0.03627 2007 3 7 54166 -0.0058 0.4501 -0.03752 2007 3 8 54167 -0.0041 0.4511 -0.03862 2007 3 9 54168 -0.0024 0.4521 -0.03956 2007 3 10 54169 -0.0006 0.4530 -0.04033 2007 3 11 54170 0.0011 0.4539 -0.04096 2007 3 12 54171 0.0029 0.4548 -0.04147 2007 3 13 54172 0.0048 0.4557 -0.04192 2007 3 14 54173 0.0066 0.4565 -0.04243 2007 3 15 54174 0.0085 0.4573 -0.04311 2007 3 16 54175 0.0103 0.4581 -0.04413 2007 3 17 54176 0.0122 0.4588 -0.04557 2007 3 18 54177 0.0142 0.4595 -0.04741 2007 3 19 54178 0.0161 0.4602 -0.04954 2007 3 20 54179 0.0180 0.4608 -0.05176 2007 3 21 54180 0.0200 0.4615 -0.05387 2007 3 22 54181 0.0220 0.4620 -0.05573 2007 3 23 54182 0.0239 0.4626 -0.05730 2007 3 24 54183 0.0259 0.4631 -0.05860 2007 3 25 54184 0.0279 0.4636 -0.05976 2007 3 26 54185 0.0300 0.4641 -0.06089 2007 3 27 54186 0.0320 0.4646 -0.06212 2007 3 28 54187 0.0340 0.4650 -0.06350 2007 3 29 54188 0.0361 0.4654 -0.06507 2007 3 30 54189 0.0382 0.4657 -0.06682 2007 3 31 54190 0.0402 0.4660 -0.06871 2007 4 1 54191 0.0423 0.4663 -0.07070 2007 4 2 54192 0.0444 0.4666 -0.07270 2007 4 3 54193 0.0465 0.4668 -0.07465 2007 4 4 54194 0.0486 0.4670 -0.07647 2007 4 5 54195 0.0507 0.4672 -0.07811 2007 4 6 54196 0.0529 0.4673 -0.07957 2007 4 7 54197 0.0550 0.4674 -0.08085 2007 4 8 54198 0.0571 0.4675 -0.08200 2007 4 9 54199 0.0593 0.4675 -0.08306 2007 4 10 54200 0.0614 0.4675 -0.08413 2007 4 11 54201 0.0635 0.4675 -0.08530 2007 4 12 54202 0.0657 0.4675 -0.08667 2007 4 13 54203 0.0678 0.4674 -0.08834 2007 4 14 54204 0.0700 0.4672 -0.09032 2007 4 15 54205 0.0721 0.4671 -0.09256 2007 4 16 54206 0.0743 0.4669 -0.09492 2007 4 17 54207 0.0764 0.4667 -0.09721 2007 4 18 54208 0.0786 0.4665 -0.09926 2007 4 19 54209 0.0807 0.4662 -0.10098 2007 4 20 54210 0.0829 0.4659 -0.10234 2007 4 21 54211 0.0850 0.4655 -0.10345 2007 4 22 54212 0.0872 0.4651 -0.10443 2007 4 23 54213 0.0893 0.4647 -0.10542 2007 4 24 54214 0.0915 0.4643 -0.10651 2007 4 25 54215 0.0936 0.4638 -0.10776 2007 4 26 54216 0.0957 0.4633 -0.10916 2007 4 27 54217 0.0979 0.4628 -0.11067 2007 4 28 54218 0.1000 0.4622 -0.11226 2007 4 29 54219 0.1021 0.4616 -0.11386 2007 4 30 54220 0.1042 0.4610 -0.11540 2007 5 1 54221 0.1063 0.4603 -0.11682 2007 5 2 54222 0.1084 0.4596 -0.11807 2007 5 3 54223 0.1105 0.4589 -0.11913 2007 5 4 54224 0.1125 0.4582 -0.11999 2007 5 5 54225 0.1146 0.4574 -0.12070 2007 5 6 54226 0.1166 0.4566 -0.12131 2007 5 7 54227 0.1187 0.4557 -0.12189 2007 5 8 54228 0.1207 0.4548 -0.12253 2007 5 9 54229 0.1227 0.4539 -0.12333 2007 5 10 54230 0.1247 0.4530 -0.12437 2007 5 11 54231 0.1267 0.4520 -0.12568 2007 5 12 54232 0.1287 0.4510 -0.12726 2007 5 13 54233 0.1306 0.4500 -0.12900 2007 5 14 54234 0.1326 0.4489 -0.13075 2007 5 15 54235 0.1345 0.4479 -0.13235 2007 5 16 54236 0.1364 0.4467 -0.13365 2007 5 17 54237 0.1383 0.4456 -0.13461 2007 5 18 54238 0.1402 0.4444 -0.13527 2007 5 19 54239 0.1420 0.4432 -0.13576 2007 5 20 54240 0.1439 0.4420 -0.13621 2007 5 21 54241 0.1457 0.4407 -0.13676 2007 5 22 54242 0.1475 0.4395 -0.13745 2007 5 23 54243 0.1493 0.4381 -0.13830 2007 5 24 54244 0.1511 0.4368 -0.13929 2007 5 25 54245 0.1528 0.4354 -0.14037 2007 5 26 54246 0.1545 0.4341 -0.14146 2007 5 27 54247 0.1562 0.4326 -0.14250 2007 5 28 54248 0.1579 0.4312 -0.14344 2007 5 29 54249 0.1596 0.4297 -0.14422 2007 5 30 54250 0.1612 0.4282 -0.14481 2007 5 31 54251 0.1628 0.4267 -0.14520 2007 6 1 54252 0.1644 0.4252 -0.14543 2007 6 2 54253 0.1659 0.4236 -0.14554 2007 6 3 54254 0.1675 0.4220 -0.14561 2007 6 4 54255 0.1690 0.4204 -0.14572 2007 6 5 54256 0.1705 0.4188 -0.14598 2007 6 6 54257 0.1719 0.4171 -0.14644 2007 6 7 54258 0.1734 0.4155 -0.14714 2007 6 8 54259 0.1748 0.4138 -0.14808 2007 6 9 54260 0.1761 0.4120 -0.14918 2007 6 10 54261 0.1775 0.4103 -0.15034 2007 6 11 54262 0.1788 0.4085 -0.15139 2007 6 12 54263 0.1801 0.4067 -0.15222 2007 6 13 54264 0.1814 0.4049 -0.15274 2007 6 14 54265 0.1826 0.4031 -0.15296 2007 6 15 54266 0.1838 0.4013 -0.15296 2007 6 16 54267 0.1850 0.3994 -0.15288 2007 6 17 54268 0.1861 0.3975 -0.15284 2007 6 18 54269 0.1872 0.3956 -0.15295 2007 6 19 54270 0.1883 0.3937 -0.15323 2007 6 20 54271 0.1893 0.3918 -0.15368 2007 6 21 54272 0.1904 0.3899 -0.15424 2007 6 22 54273 0.1913 0.3879 -0.15484 2007 6 23 54274 0.1923 0.3859 -0.15540 2007 6 24 54275 0.1932 0.3840 -0.15588 2007 6 25 54276 0.1941 0.3819 -0.15622 2007 6 26 54277 0.1949 0.3799 -0.15639 2007 6 27 54278 0.1958 0.3779 -0.15637 2007 6 28 54279 0.1965 0.3759 -0.15618 2007 6 29 54280 0.1973 0.3738 -0.15587 2007 6 30 54281 0.1980 0.3718 -0.15550 2007 7 1 54282 0.1987 0.3697 -0.15518 2007 7 2 54283 0.1993 0.3676 -0.15499 2007 7 3 54284 0.1999 0.3655 -0.15501 2007 7 4 54285 0.2005 0.3634 -0.15530 2007 7 5 54286 0.2010 0.3613 -0.15583 2007 7 6 54287 0.2015 0.3592 -0.15653 2007 7 7 54288 0.2020 0.3570 -0.15730 2007 7 8 54289 0.2024 0.3549 -0.15800 2007 7 9 54290 0.2028 0.3528 -0.15851 2007 7 10 54291 0.2032 0.3506 -0.15874 2007 7 11 54292 0.2035 0.3485 -0.15870 2007 7 12 54293 0.2037 0.3463 -0.15843 2007 7 13 54294 0.2040 0.3441 -0.15805 2007 7 14 54295 0.2042 0.3420 -0.15769 2007 7 15 54296 0.2044 0.3398 -0.15747 2007 7 16 54297 0.2045 0.3376 -0.15743 2007 7 17 54298 0.2046 0.3354 -0.15759 2007 7 18 54299 0.2046 0.3333 -0.15789 2007 7 19 54300 0.2046 0.3311 -0.15828 2007 7 20 54301 0.2046 0.3289 -0.15867 2007 7 21 54302 0.2046 0.3267 -0.15900 2007 7 22 54303 0.2045 0.3246 -0.15920 2007 7 23 54304 0.2043 0.3224 -0.15924 2007 7 24 54305 0.2041 0.3202 -0.15911 2007 7 25 54306 0.2039 0.3180 -0.15881 2007 7 26 54307 0.2037 0.3159 -0.15839 2007 7 27 54308 0.2034 0.3137 -0.15790 2007 7 28 54309 0.2031 0.3115 -0.15744 2007 7 29 54310 0.2027 0.3094 -0.15710 2007 7 30 54311 0.2023 0.3072 -0.15698 2007 7 31 54312 0.2019 0.3051 -0.15714 2007 8 1 54313 0.2014 0.3029 -0.15759 2007 8 2 54314 0.2009 0.3008 -0.15827 2007 8 3 54315 0.2003 0.2987 -0.15906 2007 8 4 54316 0.1997 0.2966 -0.15981 2007 8 5 54317 0.1991 0.2945 -0.16038 2007 8 6 54318 0.1984 0.2924 -0.16069 2007 8 7 54319 0.1977 0.2903 -0.16072 2007 8 8 54320 0.1970 0.2882 -0.16053 2007 8 9 54321 0.1962 0.2861 -0.16022 2007 8 10 54322 0.1954 0.2841 -0.15991 2007 8 11 54323 0.1945 0.2820 -0.15972 2007 8 12 54324 0.1936 0.2800 -0.15971 2007 8 13 54325 0.1927 0.2780 -0.15992 2007 8 14 54326 0.1917 0.2760 -0.16032 2007 8 15 54327 0.1907 0.2740 -0.16084 2007 8 16 54328 0.1897 0.2720 -0.16141 2007 8 17 54329 0.1886 0.2701 -0.16194 2007 8 18 54330 0.1875 0.2681 -0.16238 2007 8 19 54331 0.1864 0.2662 -0.16267 2007 8 20 54332 0.1852 0.2643 -0.16279 2007 8 21 54333 0.1840 0.2624 -0.16275 2007 8 22 54334 0.1828 0.2605 -0.16257 2007 8 23 54335 0.1815 0.2587 -0.16231 2007 8 24 54336 0.1802 0.2568 -0.16204 2007 8 25 54337 0.1788 0.2550 -0.16186 2007 8 26 54338 0.1774 0.2532 -0.16186 2007 8 27 54339 0.1760 0.2514 -0.16214 2007 8 28 54340 0.1746 0.2497 -0.16272 2007 8 29 54341 0.1731 0.2479 -0.16358 2007 8 30 54342 0.1716 0.2462 -0.16460 2007 8 31 54343 0.1701 0.2445 -0.16563 2007 9 1 54344 0.1685 0.2429 -0.16651 2007 9 2 54345 0.1669 0.2412 -0.16712 2007 9 3 54346 0.1653 0.2396 -0.16742 2007 9 4 54347 0.1636 0.2380 -0.16746 2007 9 5 54348 0.1619 0.2364 -0.16738 2007 9 6 54349 0.1602 0.2349 -0.16729 2007 9 7 54350 0.1584 0.2334 -0.16733 2007 9 8 54351 0.1566 0.2319 -0.16757 2007 9 9 54352 0.1548 0.2304 -0.16805 2007 9 10 54353 0.1530 0.2290 -0.16873 2007 9 11 54354 0.1511 0.2276 -0.16958 2007 9 12 54355 0.1493 0.2262 -0.17050 2007 9 13 54356 0.1473 0.2248 -0.17144 2007 9 14 54357 0.1454 0.2235 -0.17230 2007 9 15 54358 0.1434 0.2222 -0.17305 2007 9 16 54359 0.1414 0.2209 -0.17365 2007 9 17 54360 0.1394 0.2197 -0.17409 2007 9 18 54361 0.1374 0.2185 -0.17440 2007 9 19 54362 0.1353 0.2173 -0.17464 2007 9 20 54363 0.1333 0.2162 -0.17487 2007 9 21 54364 0.1311 0.2150 -0.17516 2007 9 22 54365 0.1290 0.2140 -0.17563 2007 9 23 54366 0.1269 0.2129 -0.17635 2007 9 24 54367 0.1247 0.2119 -0.17739 2007 9 25 54368 0.1225 0.2109 -0.17875 2007 9 26 54369 0.1203 0.2099 -0.18038 2007 9 27 54370 0.1181 0.2090 -0.18212 2007 9 28 54371 0.1158 0.2081 -0.18380 2007 9 29 54372 0.1136 0.2073 -0.18524 2007 9 30 54373 0.1113 0.2065 -0.18637 2007 10 1 54374 0.1090 0.2057 -0.18719 2007 10 2 54375 0.1067 0.2049 -0.18781 2007 10 3 54376 0.1043 0.2042 -0.18837 2007 10 4 54377 0.1020 0.2035 -0.18903 2007 10 5 54378 0.0996 0.2029 -0.18988 2007 10 6 54379 0.0973 0.2023 -0.19096 2007 10 7 54380 0.0949 0.2017 -0.19222 2007 10 8 54381 0.0925 0.2012 -0.19359 2007 10 9 54382 0.0901 0.2007 -0.19508 2007 10 10 54383 0.0877 0.2002 -0.19656 2007 10 11 54384 0.0852 0.1998 -0.19794 2007 10 12 54385 0.0828 0.1994 -0.19916 2007 10 13 54386 0.0803 0.1990 -0.20022 2007 10 14 54387 0.0779 0.1987 -0.20113 2007 10 15 54388 0.0754 0.1984 -0.20195 2007 10 16 54389 0.0729 0.1982 -0.20266 2007 10 17 54390 0.0705 0.1980 -0.20336 2007 10 18 54391 0.0680 0.1978 -0.20409 2007 10 19 54392 0.0655 0.1977 -0.20498 2007 10 20 54393 0.0630 0.1976 -0.20614 2007 10 21 54394 0.0605 0.1975 -0.20762 2007 10 22 54395 0.0580 0.1975 -0.20941 2007 10 23 54396 0.0555 0.1975 -0.21147 2007 10 24 54397 0.0529 0.1976 -0.21367 2007 10 25 54398 0.0504 0.1977 -0.21588 2007 10 26 54399 0.0479 0.1978 -0.21793 2007 10 27 54400 0.0454 0.1980 -0.21964 2007 10 28 54401 0.0429 0.1982 -0.22095 2007 10 29 54402 0.0404 0.1984 -0.22198 2007 10 30 54403 0.0379 0.1987 -0.22295 2007 10 31 54404 0.0354 0.1990 -0.22400 2007 11 1 54405 0.0329 0.1994 -0.22525 2007 11 2 54406 0.0304 0.1998 -0.22671 2007 11 3 54407 0.0279 0.2002 -0.22848 2007 11 4 54408 0.0254 0.2007 -0.23040 2007 11 5 54409 0.0229 0.2012 -0.23244 2007 11 6 54410 0.0204 0.2018 -0.23449 2007 11 7 54411 0.0180 0.2024 -0.23642 2007 11 8 54412 0.0155 0.2030 -0.23822 2007 11 9 54413 0.0130 0.2037 -0.23985 2007 11 10 54414 0.0106 0.2044 -0.24123 2007 11 11 54415 0.0082 0.2051 -0.24240 2007 11 12 54416 0.0057 0.2059 -0.24337 2007 11 13 54417 0.0033 0.2067 -0.24421 2007 11 14 54418 0.0009 0.2075 -0.24501 2007 11 15 54419 -0.0015 0.2084 -0.24580 2007 11 16 54420 -0.0038 0.2093 -0.24671 2007 11 17 54421 -0.0062 0.2103 -0.24783 2007 11 18 54422 -0.0085 0.2113 -0.24914 2007 11 19 54423 -0.0109 0.2123 -0.25063 2007 11 20 54424 -0.0132 0.2134 -0.25222 2007 11 21 54425 -0.0155 0.2145 -0.25387 2007 11 22 54426 -0.0178 0.2156 -0.25540 2007 11 23 54427 -0.0200 0.2168 -0.25669 2007 11 24 54428 -0.0223 0.2180 -0.25761 2007 11 25 54429 -0.0245 0.2192 -0.25817 2007 11 26 54430 -0.0267 0.2205 -0.25853 2007 11 27 54431 -0.0289 0.2218 -0.25884 2007 11 28 54432 -0.0311 0.2231 -0.25919 2007 11 29 54433 -0.0332 0.2245 -0.25970 2007 11 30 54434 -0.0353 0.2259 -0.26044 2007 12 1 54435 -0.0375 0.2273 -0.26138 2007 12 2 54436 -0.0395 0.2288 -0.26247 2007 12 3 54437 -0.0416 0.2303 -0.26362 2007 12 4 54438 -0.0436 0.2318 -0.26474 2007 12 5 54439 -0.0456 0.2334 -0.26576 2007 12 6 54440 -0.0476 0.2350 -0.26666 2007 12 7 54441 -0.0496 0.2366 -0.26742 2007 12 8 54442 -0.0515 0.2383 -0.26802 2007 12 9 54443 -0.0534 0.2400 -0.26845 2007 12 10 54444 -0.0553 0.2417 -0.26876 2007 12 11 54445 -0.0571 0.2434 -0.26907 2007 12 12 54446 -0.0589 0.2452 -0.26942 2007 12 13 54447 -0.0607 0.2470 -0.26991 2007 12 14 54448 -0.0625 0.2488 -0.27066 2007 12 15 54449 -0.0642 0.2506 -0.27171 2007 12 16 54450 -0.0659 0.2525 -0.27303 2007 12 17 54451 -0.0676 0.2544 -0.27448 2007 12 18 54452 -0.0692 0.2564 -0.27598 2007 12 19 54453 -0.0708 0.2583 -0.27742 2007 12 20 54454 -0.0724 0.2603 -0.27870 2007 12 21 54455 -0.0739 0.2623 -0.27978 2007 12 22 54456 -0.0754 0.2643 -0.28064 2007 12 23 54457 -0.0769 0.2664 -0.28131 2007 12 24 54458 -0.0783 0.2684 -0.28191 2007 12 25 54459 -0.0797 0.2705 -0.28264 2007 12 26 54460 -0.0811 0.2727 -0.28358 2007 12 27 54461 -0.0824 0.2748 -0.28469 2007 12 28 54462 -0.0837 0.2770 -0.28602 2007 12 29 54463 -0.0850 0.2791 -0.28743 2007 12 30 54464 -0.0862 0.2813 -0.28882 2007 12 31 54465 -0.0874 0.2835 -0.29009 2008 1 1 54466 -0.0885 0.2858 -0.29120 2008 1 2 54467 -0.0896 0.2880 -0.29211 2008 1 3 54468 -0.0907 0.2903 -0.29282 2008 1 4 54469 -0.0917 0.2926 -0.29338 2008 1 5 54470 -0.0927 0.2949 -0.29377 2008 1 6 54471 -0.0937 0.2972 -0.29409 2008 1 7 54472 -0.0946 0.2995 -0.29436 2008 1 8 54473 -0.0954 0.3019 -0.29468 2008 1 9 54474 -0.0963 0.3043 -0.29502 2008 1 10 54475 -0.0971 0.3066 -0.29550 2008 1 11 54476 -0.0978 0.3090 -0.29624 2008 1 12 54477 -0.0985 0.3114 -0.29724 2008 1 13 54478 -0.0992 0.3138 -0.29837 2008 1 14 54479 -0.0998 0.3162 -0.29950 2008 1 15 54480 -0.1004 0.3187 -0.30055 2008 1 16 54481 -0.1010 0.3211 -0.30144 2008 1 17 54482 -0.1015 0.3236 -0.30210 2008 1 18 54483 -0.1019 0.3260 -0.30247 2008 1 19 54484 -0.1024 0.3285 -0.30259 2008 1 20 54485 -0.1027 0.3310 -0.30258 2008 1 21 54486 -0.1031 0.3334 -0.30259 2008 1 22 54487 -0.1034 0.3359 -0.30270 2008 1 23 54488 -0.1036 0.3384 -0.30298 2008 1 24 54489 -0.1038 0.3409 -0.30343 2008 1 25 54490 -0.1040 0.3434 -0.30404 2008 1 26 54491 -0.1041 0.3459 -0.30475 2008 1 27 54492 -0.1042 0.3484 -0.30548 2008 1 28 54493 -0.1042 0.3509 -0.30610 2008 1 29 54494 -0.1042 0.3534 -0.30659 2008 1 30 54495 -0.1042 0.3559 -0.30695 2008 1 31 54496 -0.1041 0.3584 -0.30719 2008 2 1 54497 -0.1039 0.3609 -0.30724 2008 2 2 54498 -0.1037 0.3634 -0.30713 2008 2 3 54499 -0.1035 0.3659 -0.30699 2008 2 4 54500 -0.1032 0.3684 -0.30690 2008 2 5 54501 -0.1029 0.3709 -0.30694 2008 2 6 54502 -0.1026 0.3734 -0.30716 2008 2 7 54503 -0.1022 0.3759 -0.30769 2008 2 8 54504 -0.1017 0.3784 -0.30853 2008 2 9 54505 -0.1012 0.3808 -0.30965 2008 2 10 54506 -0.1007 0.3833 -0.31093 2008 2 11 54507 -0.1001 0.3858 -0.31222 2008 2 12 54508 -0.0995 0.3882 -0.31336 2008 2 13 54509 -0.0989 0.3907 -0.31422 2008 2 14 54510 -0.0982 0.3931 -0.31484 2008 2 15 54511 -0.0974 0.3955 -0.31520 2008 2 16 54512 -0.0966 0.3979 -0.31535 2008 2 17 54513 -0.0958 0.4003 -0.31544 2008 2 18 54514 -0.0949 0.4027 -0.31562 2008 2 19 54515 -0.0940 0.4051 -0.31592 2008 2 20 54516 -0.0931 0.4075 -0.31641 2008 2 21 54517 -0.0921 0.4098 -0.31711 2008 2 22 54518 -0.0910 0.4122 -0.31790 2008 2 23 54519 -0.0900 0.4145 -0.31866 2008 2 24 54520 -0.0888 0.4168 -0.31937 2008 2 25 54521 -0.0877 0.4191 -0.31998 2008 2 26 54522 -0.0865 0.4213 -0.32043 2008 2 27 54523 -0.0852 0.4236 -0.32067 2008 2 28 54524 -0.0840 0.4258 -0.32074 2008 2 29 54525 -0.0826 0.4280 -0.32066 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) 54141 -57.70 .18 -3.22 .34 54142 -57.70 .18 -3.57 .34 54143 -57.54 .18 -3.85 .34 54144 -57.36 .18 -3.92 .34 54145 -57.38 .14 -3.89 .34 54146 -57.62 .14 -3.95 .34 54147 -57.75 .14 -4.08 .34 IAU2000A Celestial Pole Offset Series MJD dX error dY error (msec. of arc) 54141 0.116 0.072 -0.258 0.340 54142 0.129 0.072 -0.279 0.340 54143 0.160 0.072 -0.287 0.340 54144 0.188 0.072 -0.276 0.340 54145 0.205 0.056 -0.274 0.340 54146 0.213 0.056 -0.280 0.340 54147 0.222 0.056 -0.266 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.