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* I E R S B U L L E T I N - A *
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* Rapid Service/Prediction of Earth Orientation *
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5 April 2007 Vol. XX No. 014
______________________________________________________________________
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
________________________________________________________________________
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 3 30 54189 .01816 .00009 .47681 .00010 -.062654 .000010
7 3 31 54190 .02046 .00009 .47771 .00010 -.063970 .000011
7 4 1 54191 .02274 .00009 .47852 .00010 -.065369 .000011
7 4 2 54192 .02527 .00009 .47936 .00010 -.066888 .000011
7 4 3 54193 .02804 .00009 .48042 .00010 -.068456 .000011
7 4 4 54194 .03073 .00009 .48169 .00010 -.069965 .000048
7 4 5 54195 .03334 .00009 .48300 .00009 -.071406 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
7 2 4 54135 -.0456 .4040 -.00353
7 2 5 54136 -.0436 .4056 -.00521
7 2 6 54137 -.0412 .4076 -.00692
7 2 7 54138 -.0395 .4099 -.00860
7 2 8 54139 -.0385 .4124 -.01022
7 2 9 54140 -.0377 .4146 -.01167
7 2 10 54141 -.0369 .4165 -.01293
7 2 11 54142 -.0360 .4182 -.01404
7 2 12 54143 -.0350 .4199 -.01500
7 2 13 54144 -.0338 .4217 -.01581
7 2 14 54145 -.0327 .4233 -.01655
7 2 15 54146 -.0315 .4249 -.01729
7 2 16 54147 -.0308 .4265 -.01812
7 2 17 54148 -.0303 .4276 -.01915
7 2 18 54149 -.0295 .4289 -.02034
7 2 19 54150 -.0286 .4303 -.02186
7 2 20 54151 -.0277 .4317 -.02347
7 2 21 54152 -.0269 .4331 -.02500
7 2 22 54153 -.0256 .4343 -.02629
7 2 23 54154 -.0234 .4357 -.02728
7 2 24 54155 -.0213 .4369 -.02804
7 2 25 54156 -.0192 .4378 -.02856
7 2 26 54157 -.0175 .4391 -.02901
7 2 27 54158 -.0159 .4402 -.02944
7 2 28 54159 -.0146 .4418 -.02992
7 3 1 54160 -.0138 .4434 -.03053
7 3 2 54161 -.0131 .4453 -.03130
7 3 3 54162 -.0127 .4471 -.03225
7 3 4 54163 -.0123 .4486 -.03334
7 3 5 54164 -.0116 .4499 -.03453
_______________________________________________________________________
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 = .0591 - .0866 cos A + .0263 sin A + .0646 cos C + .1098 sin C
y = .3460 + .0249 cos A + .0774 sin A + .1098 cos C - .0646 sin C
UT1-UTC = -.0484 - .00096 (MJD - 54200) - (UT2-UT1)
where A = 2*pi*(MJD-54195)/365.25 and C = 2*pi*(MJD-54195)/435.
TAI-UTC(MJD 54196) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54195)**0.80 S t = 0.00025 (MJD-54195)**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 4 6 54196 0.0357 0.4840 -0.07274
2007 4 7 54197 0.0381 0.4850 -0.07396
2007 4 8 54198 0.0404 0.4857 -0.07512
2007 4 9 54199 0.0427 0.4862 -0.07625
2007 4 10 54200 0.0451 0.4866 -0.07741
2007 4 11 54201 0.0475 0.4869 -0.07867
2007 4 12 54202 0.0500 0.4872 -0.08010
2007 4 13 54203 0.0525 0.4874 -0.08174
2007 4 14 54204 0.0550 0.4876 -0.08362
2007 4 15 54205 0.0575 0.4877 -0.08566
2007 4 16 54206 0.0600 0.4877 -0.08775
2007 4 17 54207 0.0625 0.4877 -0.08973
2007 4 18 54208 0.0650 0.4876 -0.09146
2007 4 19 54209 0.0676 0.4875 -0.09283
2007 4 20 54210 0.0701 0.4874 -0.09386
2007 4 21 54211 0.0726 0.4871 -0.09465
2007 4 22 54212 0.0751 0.4869 -0.09532
2007 4 23 54213 0.0776 0.4866 -0.09597
2007 4 24 54214 0.0801 0.4862 -0.09672
2007 4 25 54215 0.0826 0.4858 -0.09761
2007 4 26 54216 0.0850 0.4854 -0.09867
2007 4 27 54217 0.0875 0.4849 -0.09986
2007 4 28 54218 0.0900 0.4844 -0.10111
2007 4 29 54219 0.0924 0.4838 -0.10237
2007 4 30 54220 0.0949 0.4832 -0.10357
2007 5 1 54221 0.0973 0.4825 -0.10464
2007 5 2 54222 0.0998 0.4819 -0.10555
2007 5 3 54223 0.1022 0.4811 -0.10628
2007 5 4 54224 0.1046 0.4804 -0.10681
2007 5 5 54225 0.1070 0.4796 -0.10717
2007 5 6 54226 0.1094 0.4787 -0.10743
2007 5 7 54227 0.1118 0.4778 -0.10768
2007 5 8 54228 0.1142 0.4769 -0.10801
2007 5 9 54229 0.1165 0.4760 -0.10854
2007 5 10 54230 0.1189 0.4750 -0.10935
2007 5 11 54231 0.1212 0.4740 -0.11046
2007 5 12 54232 0.1235 0.4729 -0.11186
2007 5 13 54233 0.1258 0.4718 -0.11347
2007 5 14 54234 0.1281 0.4707 -0.11512
2007 5 15 54235 0.1303 0.4695 -0.11664
2007 5 16 54236 0.1326 0.4683 -0.11791
2007 5 17 54237 0.1348 0.4671 -0.11885
2007 5 18 54238 0.1370 0.4658 -0.11953
2007 5 19 54239 0.1392 0.4645 -0.12003
2007 5 20 54240 0.1414 0.4632 -0.12052
2007 5 21 54241 0.1435 0.4618 -0.12110
2007 5 22 54242 0.1456 0.4604 -0.12185
2007 5 23 54243 0.1478 0.4590 -0.12276
2007 5 24 54244 0.1498 0.4575 -0.12382
2007 5 25 54245 0.1519 0.4560 -0.12496
2007 5 26 54246 0.1539 0.4545 -0.12612
2007 5 27 54247 0.1560 0.4530 -0.12724
2007 5 28 54248 0.1579 0.4514 -0.12824
2007 5 29 54249 0.1599 0.4498 -0.12909
2007 5 30 54250 0.1619 0.4481 -0.12975
2007 5 31 54251 0.1638 0.4464 -0.13022
2007 6 1 54252 0.1657 0.4447 -0.13052
2007 6 2 54253 0.1675 0.4430 -0.13070
2007 6 3 54254 0.1694 0.4413 -0.13083
2007 6 4 54255 0.1712 0.4395 -0.13101
2007 6 5 54256 0.1729 0.4377 -0.13132
2007 6 6 54257 0.1747 0.4358 -0.13185
2007 6 7 54258 0.1764 0.4340 -0.13261
2007 6 8 54259 0.1781 0.4321 -0.13361
2007 6 9 54260 0.1798 0.4302 -0.13478
2007 6 10 54261 0.1814 0.4282 -0.13600
2007 6 11 54262 0.1830 0.4262 -0.13712
2007 6 12 54263 0.1845 0.4243 -0.13802
2007 6 13 54264 0.1861 0.4222 -0.13860
2007 6 14 54265 0.1876 0.4202 -0.13888
2007 6 15 54266 0.1891 0.4182 -0.13894
2007 6 16 54267 0.1905 0.4161 -0.13891
2007 6 17 54268 0.1919 0.4140 -0.13891
2007 6 18 54269 0.1933 0.4119 -0.13906
2007 6 19 54270 0.1946 0.4097 -0.13937
2007 6 20 54271 0.1959 0.4076 -0.13984
2007 6 21 54272 0.1971 0.4054 -0.14041
2007 6 22 54273 0.1984 0.4032 -0.14101
2007 6 23 54274 0.1996 0.4010 -0.14157
2007 6 24 54275 0.2007 0.3987 -0.14204
2007 6 25 54276 0.2018 0.3965 -0.14236
2007 6 26 54277 0.2029 0.3942 -0.14249
2007 6 27 54278 0.2039 0.3919 -0.14244
2007 6 28 54279 0.2049 0.3896 -0.14222
2007 6 29 54280 0.2059 0.3873 -0.14186
2007 6 30 54281 0.2068 0.3850 -0.14145
2007 7 1 54282 0.2077 0.3826 -0.14107
2007 7 2 54283 0.2086 0.3803 -0.14083
2007 7 3 54284 0.2094 0.3779 -0.14080
2007 7 4 54285 0.2101 0.3755 -0.14102
2007 7 5 54286 0.2109 0.3731 -0.14150
2007 7 6 54287 0.2115 0.3707 -0.14215
2007 7 7 54288 0.2122 0.3683 -0.14286
2007 7 8 54289 0.2128 0.3659 -0.14350
2007 7 9 54290 0.2134 0.3635 -0.14395
2007 7 10 54291 0.2139 0.3610 -0.14414
2007 7 11 54292 0.2144 0.3586 -0.14406
2007 7 12 54293 0.2148 0.3561 -0.14376
2007 7 13 54294 0.2152 0.3537 -0.14335
2007 7 14 54295 0.2156 0.3512 -0.14296
2007 7 15 54296 0.2159 0.3487 -0.14271
2007 7 16 54297 0.2162 0.3463 -0.14265
2007 7 17 54298 0.2164 0.3438 -0.14278
2007 7 18 54299 0.2166 0.3413 -0.14307
2007 7 19 54300 0.2167 0.3388 -0.14343
2007 7 20 54301 0.2168 0.3363 -0.14376
2007 7 21 54302 0.2169 0.3338 -0.14403
2007 7 22 54303 0.2169 0.3314 -0.14417
2007 7 23 54304 0.2169 0.3289 -0.14415
2007 7 24 54305 0.2168 0.3264 -0.14396
2007 7 25 54306 0.2167 0.3239 -0.14361
2007 7 26 54307 0.2165 0.3214 -0.14312
2007 7 27 54308 0.2163 0.3189 -0.14258
2007 7 28 54309 0.2161 0.3164 -0.14205
2007 7 29 54310 0.2158 0.3140 -0.14166
2007 7 30 54311 0.2155 0.3115 -0.14148
2007 7 31 54312 0.2151 0.3090 -0.14158
2007 8 1 54313 0.2147 0.3066 -0.14198
2007 8 2 54314 0.2143 0.3041 -0.14260
2007 8 3 54315 0.2138 0.3017 -0.14334
2007 8 4 54316 0.2132 0.2993 -0.14404
2007 8 5 54317 0.2127 0.2968 -0.14456
2007 8 6 54318 0.2120 0.2944 -0.14482
2007 8 7 54319 0.2114 0.2920 -0.14481
2007 8 8 54320 0.2107 0.2896 -0.14457
2007 8 9 54321 0.2099 0.2872 -0.14421
2007 8 10 54322 0.2091 0.2848 -0.14386
2007 8 11 54323 0.2083 0.2825 -0.14363
2007 8 12 54324 0.2074 0.2801 -0.14359
2007 8 13 54325 0.2065 0.2778 -0.14376
2007 8 14 54326 0.2055 0.2755 -0.14413
2007 8 15 54327 0.2045 0.2732 -0.14463
2007 8 16 54328 0.2035 0.2709 -0.14517
2007 8 17 54329 0.2024 0.2686 -0.14570
2007 8 18 54330 0.2013 0.2663 -0.14613
2007 8 19 54331 0.2001 0.2641 -0.14642
2007 8 20 54332 0.1989 0.2619 -0.14655
2007 8 21 54333 0.1977 0.2597 -0.14652
2007 8 22 54334 0.1964 0.2575 -0.14637
2007 8 23 54335 0.1951 0.2553 -0.14615
2007 8 24 54336 0.1937 0.2532 -0.14593
2007 8 25 54337 0.1923 0.2511 -0.14581
2007 8 26 54338 0.1909 0.2490 -0.14590
2007 8 27 54339 0.1894 0.2469 -0.14627
2007 8 28 54340 0.1879 0.2448 -0.14696
2007 8 29 54341 0.1864 0.2428 -0.14795
2007 8 30 54342 0.1848 0.2408 -0.14913
2007 8 31 54343 0.1832 0.2388 -0.15034
2007 9 1 54344 0.1815 0.2368 -0.15141
2007 9 2 54345 0.1798 0.2349 -0.15222
2007 9 3 54346 0.1781 0.2330 -0.15274
2007 9 4 54347 0.1763 0.2311 -0.15301
2007 9 5 54348 0.1746 0.2292 -0.15313
2007 9 6 54349 0.1727 0.2274 -0.15323
2007 9 7 54350 0.1709 0.2256 -0.15343
2007 9 8 54351 0.1690 0.2238 -0.15381
2007 9 9 54352 0.1670 0.2221 -0.15441
2007 9 10 54353 0.1651 0.2204 -0.15522
2007 9 11 54354 0.1631 0.2187 -0.15618
2007 9 12 54355 0.1611 0.2170 -0.15723
2007 9 13 54356 0.1590 0.2154 -0.15828
2007 9 14 54357 0.1569 0.2138 -0.15926
2007 9 15 54358 0.1548 0.2123 -0.16011
2007 9 16 54359 0.1527 0.2107 -0.16081
2007 9 17 54360 0.1505 0.2092 -0.16134
2007 9 18 54361 0.1483 0.2078 -0.16174
2007 9 19 54362 0.1461 0.2063 -0.16205
2007 9 20 54363 0.1438 0.2049 -0.16233
2007 9 21 54364 0.1416 0.2036 -0.16268
2007 9 22 54365 0.1393 0.2023 -0.16318
2007 9 23 54366 0.1369 0.2010 -0.16392
2007 9 24 54367 0.1346 0.1997 -0.16497
2007 9 25 54368 0.1322 0.1985 -0.16635
2007 9 26 54369 0.1298 0.1973 -0.16797
2007 9 27 54370 0.1274 0.1962 -0.16971
2007 9 28 54371 0.1249 0.1951 -0.17138
2007 9 29 54372 0.1225 0.1940 -0.17282
2007 9 30 54373 0.1200 0.1930 -0.17394
2007 10 1 54374 0.1175 0.1920 -0.17474
2007 10 2 54375 0.1149 0.1910 -0.17532
2007 10 3 54376 0.1124 0.1901 -0.17581
2007 10 4 54377 0.1098 0.1892 -0.17634
2007 10 5 54378 0.1072 0.1884 -0.17701
2007 10 6 54379 0.1046 0.1876 -0.17784
2007 10 7 54380 0.1020 0.1868 -0.17885
2007 10 8 54381 0.0994 0.1861 -0.18000
2007 10 9 54382 0.0967 0.1854 -0.18122
2007 10 10 54383 0.0941 0.1848 -0.18246
2007 10 11 54384 0.0914 0.1842 -0.18365
2007 10 12 54385 0.0887 0.1836 -0.18474
2007 10 13 54386 0.0860 0.1831 -0.18570
2007 10 14 54387 0.0833 0.1826 -0.18653
2007 10 15 54388 0.0806 0.1822 -0.18725
2007 10 16 54389 0.0778 0.1818 -0.18789
2007 10 17 54390 0.0751 0.1814 -0.18852
2007 10 18 54391 0.0723 0.1811 -0.18920
2007 10 19 54392 0.0696 0.1808 -0.19001
2007 10 20 54393 0.0668 0.1806 -0.19103
2007 10 21 54394 0.0640 0.1804 -0.19231
2007 10 22 54395 0.0613 0.1803 -0.19389
2007 10 23 54396 0.0585 0.1802 -0.19573
2007 10 24 54397 0.0557 0.1801 -0.19773
2007 10 25 54398 0.0529 0.1801 -0.19972
2007 10 26 54399 0.0501 0.1801 -0.20153
2007 10 27 54400 0.0473 0.1802 -0.20303
2007 10 28 54401 0.0445 0.1803 -0.20419
2007 10 29 54402 0.0417 0.1805 -0.20506
2007 10 30 54403 0.0389 0.1807 -0.20577
2007 10 31 54404 0.0361 0.1809 -0.20648
2007 11 1 54405 0.0333 0.1812 -0.20732
2007 11 2 54406 0.0305 0.1815 -0.20837
2007 11 3 54407 0.0277 0.1819 -0.20962
2007 11 4 54408 0.0249 0.1823 -0.21105
2007 11 5 54409 0.0221 0.1827 -0.21259
2007 11 6 54410 0.0194 0.1832 -0.21414
2007 11 7 54411 0.0166 0.1838 -0.21561
2007 11 8 54412 0.0138 0.1843 -0.21694
2007 11 9 54413 0.0111 0.1849 -0.21811
2007 11 10 54414 0.0083 0.1856 -0.21909
2007 11 11 54415 0.0056 0.1863 -0.21989
2007 11 12 54416 0.0028 0.1871 -0.22053
2007 11 13 54417 0.0001 0.1878 -0.22109
2007 11 14 54418 -0.0026 0.1887 -0.22165
2007 11 15 54419 -0.0053 0.1895 -0.22225
2007 11 16 54420 -0.0080 0.1905 -0.22297
2007 11 17 54421 -0.0107 0.1914 -0.22393
2007 11 18 54422 -0.0133 0.1924 -0.22513
2007 11 19 54423 -0.0160 0.1934 -0.22663
2007 11 20 54424 -0.0186 0.1945 -0.22837
2007 11 21 54425 -0.0212 0.1956 -0.23018
2007 11 22 54426 -0.0238 0.1968 -0.23191
2007 11 23 54427 -0.0264 0.1979 -0.23341
2007 11 24 54428 -0.0290 0.1992 -0.23464
2007 11 25 54429 -0.0315 0.2004 -0.23560
2007 11 26 54430 -0.0341 0.2018 -0.23638
2007 11 27 54431 -0.0366 0.2031 -0.23708
2007 11 28 54432 -0.0390 0.2045 -0.23788
2007 11 29 54433 -0.0415 0.2059 -0.23883
2007 11 30 54434 -0.0439 0.2074 -0.23994
2007 12 1 54435 -0.0464 0.2089 -0.24124
2007 12 2 54436 -0.0488 0.2104 -0.24267
2007 12 3 54437 -0.0511 0.2120 -0.24413
2007 12 4 54438 -0.0535 0.2136 -0.24551
2007 12 5 54439 -0.0558 0.2152 -0.24674
2007 12 6 54440 -0.0581 0.2169 -0.24780
2007 12 7 54441 -0.0603 0.2186 -0.24870
2007 12 8 54442 -0.0626 0.2203 -0.24941
2007 12 9 54443 -0.0648 0.2221 -0.24996
2007 12 10 54444 -0.0670 0.2239 -0.25040
2007 12 11 54445 -0.0691 0.2258 -0.25081
2007 12 12 54446 -0.0713 0.2276 -0.25131
2007 12 13 54447 -0.0733 0.2296 -0.25196
2007 12 14 54448 -0.0754 0.2315 -0.25286
2007 12 15 54449 -0.0774 0.2335 -0.25402
2007 12 16 54450 -0.0794 0.2355 -0.25537
2007 12 17 54451 -0.0814 0.2375 -0.25689
2007 12 18 54452 -0.0833 0.2396 -0.25852
2007 12 19 54453 -0.0852 0.2417 -0.26011
2007 12 20 54454 -0.0871 0.2438 -0.26149
2007 12 21 54455 -0.0889 0.2459 -0.26259
2007 12 22 54456 -0.0907 0.2481 -0.26340
2007 12 23 54457 -0.0925 0.2503 -0.26401
2007 12 24 54458 -0.0942 0.2525 -0.26458
2007 12 25 54459 -0.0959 0.2548 -0.26520
2007 12 26 54460 -0.0975 0.2571 -0.26600
2007 12 27 54461 -0.0991 0.2594 -0.26702
2007 12 28 54462 -0.1007 0.2617 -0.26829
2007 12 29 54463 -0.1022 0.2641 -0.26976
2007 12 30 54464 -0.1037 0.2664 -0.27133
2007 12 31 54465 -0.1052 0.2688 -0.27287
2008 1 1 54466 -0.1066 0.2713 -0.27428
2008 1 2 54467 -0.1080 0.2737 -0.27549
2008 1 3 54468 -0.1093 0.2762 -0.27651
2008 1 4 54469 -0.1106 0.2787 -0.27734
2008 1 5 54470 -0.1119 0.2812 -0.27794
2008 1 6 54471 -0.1131 0.2837 -0.27837
2008 1 7 54472 -0.1142 0.2862 -0.27873
2008 1 8 54473 -0.1153 0.2888 -0.27923
2008 1 9 54474 -0.1164 0.2914 -0.27993
2008 1 10 54475 -0.1175 0.2939 -0.28090
2008 1 11 54476 -0.1185 0.2965 -0.28214
2008 1 12 54477 -0.1194 0.2992 -0.28374
2008 1 13 54478 -0.1203 0.3018 -0.28555
2008 1 14 54479 -0.1212 0.3045 -0.28750
2008 1 15 54480 -0.1220 0.3071 -0.28943
2008 1 16 54481 -0.1228 0.3098 -0.29117
2008 1 17 54482 -0.1235 0.3125 -0.29268
2008 1 18 54483 -0.1242 0.3152 -0.29393
2008 1 19 54484 -0.1248 0.3179 -0.29488
2008 1 20 54485 -0.1254 0.3206 -0.29567
2008 1 21 54486 -0.1259 0.3233 -0.29640
2008 1 22 54487 -0.1264 0.3261 -0.29721
2008 1 23 54488 -0.1269 0.3288 -0.29820
2008 1 24 54489 -0.1273 0.3315 -0.29934
2008 1 25 54490 -0.1276 0.3343 -0.30063
2008 1 26 54491 -0.1279 0.3371 -0.30203
2008 1 27 54492 -0.1282 0.3398 -0.30334
2008 1 28 54493 -0.1284 0.3426 -0.30450
2008 1 29 54494 -0.1286 0.3454 -0.30542
2008 1 30 54495 -0.1287 0.3481 -0.30613
2008 1 31 54496 -0.1288 0.3509 -0.30661
2008 2 1 54497 -0.1288 0.3537 -0.30690
2008 2 2 54498 -0.1288 0.3565 -0.30699
2008 2 3 54499 -0.1287 0.3592 -0.30698
2008 2 4 54500 -0.1286 0.3620 -0.30698
2008 2 5 54501 -0.1284 0.3648 -0.30710
2008 2 6 54502 -0.1282 0.3675 -0.30737
2008 2 7 54503 -0.1279 0.3703 -0.30788
2008 2 8 54504 -0.1276 0.3731 -0.30871
2008 2 9 54505 -0.1273 0.3758 -0.30981
2008 2 10 54506 -0.1269 0.3786 -0.31111
2008 2 11 54507 -0.1264 0.3813 -0.31249
2008 2 12 54508 -0.1259 0.3841 -0.31379
2008 2 13 54509 -0.1254 0.3868 -0.31488
2008 2 14 54510 -0.1248 0.3895 -0.31576
2008 2 15 54511 -0.1241 0.3922 -0.31644
2008 2 16 54512 -0.1234 0.3949 -0.31699
2008 2 17 54513 -0.1227 0.3976 -0.31751
2008 2 18 54514 -0.1219 0.4003 -0.31810
2008 2 19 54515 -0.1211 0.4030 -0.31891
2008 2 20 54516 -0.1202 0.4056 -0.31994
2008 2 21 54517 -0.1193 0.4083 -0.32120
2008 2 22 54518 -0.1183 0.4109 -0.32267
2008 2 23 54519 -0.1173 0.4135 -0.32426
2008 2 24 54520 -0.1163 0.4161 -0.32585
2008 2 25 54521 -0.1152 0.4187 -0.32726
2008 2 26 54522 -0.1140 0.4213 -0.32845
2008 2 27 54523 -0.1128 0.4238 -0.32943
2008 2 28 54524 -0.1116 0.4263 -0.33022
2008 2 29 54525 -0.1103 0.4289 -0.33092
2008 3 1 54526 -0.1090 0.4313 -0.33159
2008 3 2 54527 -0.1076 0.4338 -0.33229
2008 3 3 54528 -0.1062 0.4363 -0.33311
2008 3 4 54529 -0.1047 0.4387 -0.33418
2008 3 5 54530 -0.1032 0.4411 -0.33553
2008 3 6 54531 -0.1017 0.4435 -0.33713
2008 3 7 54532 -0.1001 0.4458 -0.33902
2008 3 8 54533 -0.0985 0.4482 -0.34109
2008 3 9 54534 -0.0968 0.4505 -0.34316
2008 3 10 54535 -0.0951 0.4528 -0.34509
2008 3 11 54536 -0.0934 0.4550 -0.34676
2008 3 12 54537 -0.0916 0.4573 -0.34811
2008 3 13 54538 -0.0898 0.4595 -0.34917
2008 3 14 54539 -0.0879 0.4617 -0.35008
2008 3 15 54540 -0.0860 0.4638 -0.35091
2008 3 16 54541 -0.0841 0.4659 -0.35182
2008 3 17 54542 -0.0821 0.4680 -0.35289
2008 3 18 54543 -0.0801 0.4701 -0.35418
2008 3 19 54544 -0.0780 0.4721 -0.35558
2008 3 20 54545 -0.0759 0.4741 -0.35709
2008 3 21 54546 -0.0738 0.4761 -0.35869
2008 3 22 54547 -0.0717 0.4780 -0.36031
2008 3 23 54548 -0.0695 0.4799 -0.36177
2008 3 24 54549 -0.0672 0.4818 -0.36297
2008 3 25 54550 -0.0650 0.4836 -0.36390
2008 3 26 54551 -0.0627 0.4854 -0.36461
2008 3 27 54552 -0.0604 0.4872 -0.36514
2008 3 28 54553 -0.0580 0.4889 -0.36553
2008 3 29 54554 -0.0556 0.4906 -0.36585
2008 3 30 54555 -0.0532 0.4923 -0.36620
2008 3 31 54556 -0.0508 0.4939 -0.36668
2008 4 1 54557 -0.0483 0.4955 -0.36733
2008 4 2 54558 -0.0458 0.4970 -0.36817
2008 4 3 54559 -0.0432 0.4985 -0.36923
2008 4 4 54560 -0.0407 0.5000 -0.37051
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)
54176 -56.03 .33 -5.88 .19
54177 -55.59 .74 -5.57 .34
54178 -55.44 .74 -5.05 .34
54179 -55.81 .74 -4.74 .34
54180 -56.46 .23 -4.80 .16
54181 -56.97 .23 -5.10 .16
54182 -57.13 .23 -5.46 .16
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54135 -57.0 -2.6
54136 -57.1 -2.5
54137 -57.2 -2.5
54138 -57.3 -2.6
54139 -57.4 -2.8
54140 -57.4 -3.0
54141 -57.4 -3.2
54142 -57.3 -3.4
54143 -57.1 -3.7
54144 -57.0 -3.9
54145 -57.1 -4.1
54146 -57.3 -4.2
54147 -57.4 -4.2
54148 -57.5 -4.1
54149 -57.5 -3.9
54150 -57.5 -3.8
54151 -57.5 -3.7
54152 -57.6 -3.6
54153 -57.8 -3.7
54154 -58.0 -3.8
54155 -58.1 -4.0
54156 -58.0 -4.2
54157 -57.8 -4.4
54158 -57.4 -4.6
54159 -57.0 -4.7
54160 -56.6 -4.7
54161 -56.3 -4.6
54162 -56.1 -4.5
54163 -55.9 -4.4
54164 -55.9 -4.3
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54176 0.293 0.131 -0.180 0.190
54177 0.266 0.294 -0.170 0.340
54178 0.239 0.294 -0.225 0.340
54179 0.240 0.294 -0.293 0.340
54180 0.249 0.091 -0.306 0.160
54181 0.257 0.091 -0.295 0.160
54182 0.272 0.091 -0.283 0.160
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54135 0.13 -0.24
54136 0.08 -0.19
54137 0.07 -0.07
54138 0.10 -0.03
54139 0.13 -0.14
54140 0.19 -0.25
54141 0.24 -0.24
54142 0.29 -0.11
54143 0.34 -0.14
54144 0.33 -0.26
54145 0.32 -0.48
54146 0.34 -0.53
54147 0.36 -0.39
54148 0.23 -0.27
54149 0.06 -0.33
54150 -0.02 -0.58
54151 0.09 -0.62
54152 0.26 -0.40
54153 0.36 -0.27
54154 0.37 -0.15
54155 0.32 -0.15
54156 0.29 -0.14
54157 0.25 -0.15
54158 0.26 -0.21
54159 0.26 -0.22
54160 0.28 -0.19
54161 0.32 -0.19
54162 0.36 -0.33
54163 0.41 -0.50
54164 0.37 -0.52
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.