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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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19 April 2007 Vol. XX No. 016
______________________________________________________________________
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 4 13 54203 .04713 .00009 .48854 .00010 -.081836 .000009
7 4 14 54204 .04881 .00009 .48892 .00010 -.083743 .000010
7 4 15 54205 .05050 .00009 .48933 .00010 -.085882 .000009
7 4 16 54206 .05232 .00010 .48977 .00010 -.088165 .000012
7 4 17 54207 .05435 .00009 .49009 .00010 -.090410 .000012
7 4 18 54208 .05641 .00009 .49011 .00009 -.092395 .000048
7 4 19 54209 .05819 .00009 .49010 .00009 -.094087 .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 = .0585 - .0827 cos A + .0424 sin A + .0883 cos C + .1002 sin C
y = .3456 + .0401 cos A + .0747 sin A + .1002 cos C - .0883 sin C
UT1-UTC = -.0629 - .00097 (MJD - 54214) - (UT2-UT1)
where A = 2*pi*(MJD-54209)/365.25 and C = 2*pi*(MJD-54209)/435.
TAI-UTC(MJD 54210) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54209)**0.80 S t = 0.00025 (MJD-54209)**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 20 54210 0.0603 0.4899 -0.09546
2007 4 21 54211 0.0621 0.4897 -0.09653
2007 4 22 54212 0.0641 0.4895 -0.09748
2007 4 23 54213 0.0662 0.4893 -0.09847
2007 4 24 54214 0.0684 0.4890 -0.09958
2007 4 25 54215 0.0706 0.4887 -0.10084
2007 4 26 54216 0.0729 0.4885 -0.10224
2007 4 27 54217 0.0752 0.4881 -0.10378
2007 4 28 54218 0.0775 0.4878 -0.10539
2007 4 29 54219 0.0798 0.4874 -0.10700
2007 4 30 54220 0.0821 0.4869 -0.10856
2007 5 1 54221 0.0844 0.4864 -0.11003
2007 5 2 54222 0.0867 0.4859 -0.11139
2007 5 3 54223 0.0890 0.4854 -0.11258
2007 5 4 54224 0.0914 0.4848 -0.11358
2007 5 5 54225 0.0937 0.4842 -0.11439
2007 5 6 54226 0.0961 0.4835 -0.11505
2007 5 7 54227 0.0984 0.4828 -0.11563
2007 5 8 54228 0.1008 0.4821 -0.11623
2007 5 9 54229 0.1031 0.4813 -0.11697
2007 5 10 54230 0.1054 0.4805 -0.11792
2007 5 11 54231 0.1078 0.4796 -0.11914
2007 5 12 54232 0.1101 0.4788 -0.12061
2007 5 13 54233 0.1124 0.4778 -0.12224
2007 5 14 54234 0.1147 0.4769 -0.12386
2007 5 15 54235 0.1170 0.4759 -0.12529
2007 5 16 54236 0.1193 0.4749 -0.12643
2007 5 17 54237 0.1215 0.4738 -0.12721
2007 5 18 54238 0.1238 0.4728 -0.12769
2007 5 19 54239 0.1260 0.4716 -0.12797
2007 5 20 54240 0.1282 0.4705 -0.12819
2007 5 21 54241 0.1304 0.4693 -0.12848
2007 5 22 54242 0.1326 0.4681 -0.12891
2007 5 23 54243 0.1348 0.4668 -0.12949
2007 5 24 54244 0.1369 0.4655 -0.13019
2007 5 25 54245 0.1391 0.4642 -0.13097
2007 5 26 54246 0.1412 0.4629 -0.13175
2007 5 27 54247 0.1433 0.4615 -0.13249
2007 5 28 54248 0.1453 0.4601 -0.13312
2007 5 29 54249 0.1474 0.4586 -0.13361
2007 5 30 54250 0.1494 0.4571 -0.13394
2007 5 31 54251 0.1514 0.4556 -0.13410
2007 6 1 54252 0.1534 0.4541 -0.13412
2007 6 2 54253 0.1554 0.4525 -0.13405
2007 6 3 54254 0.1573 0.4509 -0.13396
2007 6 4 54255 0.1592 0.4493 -0.13395
2007 6 5 54256 0.1611 0.4476 -0.13410
2007 6 6 54257 0.1629 0.4460 -0.13449
2007 6 7 54258 0.1648 0.4443 -0.13514
2007 6 8 54259 0.1666 0.4425 -0.13606
2007 6 9 54260 0.1683 0.4407 -0.13716
2007 6 10 54261 0.1701 0.4390 -0.13833
2007 6 11 54262 0.1718 0.4371 -0.13941
2007 6 12 54263 0.1735 0.4353 -0.14028
2007 6 13 54264 0.1751 0.4334 -0.14085
2007 6 14 54265 0.1768 0.4315 -0.14113
2007 6 15 54266 0.1784 0.4296 -0.14119
2007 6 16 54267 0.1799 0.4277 -0.14116
2007 6 17 54268 0.1815 0.4257 -0.14119
2007 6 18 54269 0.1830 0.4237 -0.14135
2007 6 19 54270 0.1845 0.4217 -0.14168
2007 6 20 54271 0.1859 0.4197 -0.14218
2007 6 21 54272 0.1873 0.4176 -0.14278
2007 6 22 54273 0.1887 0.4155 -0.14343
2007 6 23 54274 0.1900 0.4134 -0.14404
2007 6 24 54275 0.1913 0.4113 -0.14456
2007 6 25 54276 0.1926 0.4092 -0.14493
2007 6 26 54277 0.1938 0.4070 -0.14513
2007 6 27 54278 0.1950 0.4049 -0.14514
2007 6 28 54279 0.1962 0.4027 -0.14498
2007 6 29 54280 0.1973 0.4005 -0.14468
2007 6 30 54281 0.1984 0.3982 -0.14434
2007 7 1 54282 0.1994 0.3960 -0.14403
2007 7 2 54283 0.2004 0.3937 -0.14386
2007 7 3 54284 0.2014 0.3915 -0.14390
2007 7 4 54285 0.2023 0.3892 -0.14420
2007 7 5 54286 0.2032 0.3869 -0.14474
2007 7 6 54287 0.2041 0.3846 -0.14545
2007 7 7 54288 0.2049 0.3822 -0.14623
2007 7 8 54289 0.2057 0.3799 -0.14693
2007 7 9 54290 0.2064 0.3776 -0.14743
2007 7 10 54291 0.2071 0.3752 -0.14766
2007 7 11 54292 0.2078 0.3728 -0.14761
2007 7 12 54293 0.2084 0.3704 -0.14732
2007 7 13 54294 0.2090 0.3681 -0.14692
2007 7 14 54295 0.2096 0.3657 -0.14653
2007 7 15 54296 0.2101 0.3633 -0.14627
2007 7 16 54297 0.2105 0.3608 -0.14620
2007 7 17 54298 0.2109 0.3584 -0.14632
2007 7 18 54299 0.2113 0.3560 -0.14658
2007 7 19 54300 0.2116 0.3536 -0.14693
2007 7 20 54301 0.2119 0.3511 -0.14727
2007 7 21 54302 0.2122 0.3487 -0.14756
2007 7 22 54303 0.2124 0.3462 -0.14771
2007 7 23 54304 0.2126 0.3438 -0.14771
2007 7 24 54305 0.2127 0.3414 -0.14754
2007 7 25 54306 0.2128 0.3389 -0.14720
2007 7 26 54307 0.2128 0.3365 -0.14673
2007 7 27 54308 0.2128 0.3340 -0.14621
2007 7 28 54309 0.2128 0.3316 -0.14570
2007 7 29 54310 0.2127 0.3291 -0.14531
2007 7 30 54311 0.2126 0.3267 -0.14515
2007 7 31 54312 0.2124 0.3242 -0.14527
2007 8 1 54313 0.2122 0.3218 -0.14569
2007 8 2 54314 0.2120 0.3193 -0.14634
2007 8 3 54315 0.2117 0.3169 -0.14708
2007 8 4 54316 0.2114 0.3145 -0.14778
2007 8 5 54317 0.2110 0.3120 -0.14830
2007 8 6 54318 0.2106 0.3096 -0.14857
2007 8 7 54319 0.2101 0.3072 -0.14855
2007 8 8 54320 0.2096 0.3048 -0.14832
2007 8 9 54321 0.2091 0.3024 -0.14796
2007 8 10 54322 0.2085 0.3000 -0.14761
2007 8 11 54323 0.2078 0.2976 -0.14737
2007 8 12 54324 0.2072 0.2953 -0.14732
2007 8 13 54325 0.2065 0.2929 -0.14749
2007 8 14 54326 0.2057 0.2906 -0.14785
2007 8 15 54327 0.2049 0.2882 -0.14834
2007 8 16 54328 0.2041 0.2859 -0.14887
2007 8 17 54329 0.2032 0.2836 -0.14938
2007 8 18 54330 0.2023 0.2813 -0.14979
2007 8 19 54331 0.2013 0.2790 -0.15006
2007 8 20 54332 0.2003 0.2768 -0.15016
2007 8 21 54333 0.1993 0.2745 -0.15011
2007 8 22 54334 0.1982 0.2723 -0.14992
2007 8 23 54335 0.1971 0.2700 -0.14967
2007 8 24 54336 0.1960 0.2678 -0.14942
2007 8 25 54337 0.1948 0.2657 -0.14926
2007 8 26 54338 0.1935 0.2635 -0.14931
2007 8 27 54339 0.1923 0.2614 -0.14964
2007 8 28 54340 0.1910 0.2592 -0.15030
2007 8 29 54341 0.1896 0.2571 -0.15125
2007 8 30 54342 0.1882 0.2550 -0.15239
2007 8 31 54343 0.1868 0.2530 -0.15356
2007 9 1 54344 0.1853 0.2509 -0.15458
2007 9 2 54345 0.1838 0.2489 -0.15536
2007 9 3 54346 0.1823 0.2469 -0.15583
2007 9 4 54347 0.1807 0.2450 -0.15606
2007 9 5 54348 0.1791 0.2430 -0.15613
2007 9 6 54349 0.1775 0.2411 -0.15618
2007 9 7 54350 0.1758 0.2392 -0.15633
2007 9 8 54351 0.1741 0.2373 -0.15666
2007 9 9 54352 0.1724 0.2355 -0.15720
2007 9 10 54353 0.1706 0.2337 -0.15795
2007 9 11 54354 0.1688 0.2319 -0.15885
2007 9 12 54355 0.1670 0.2301 -0.15985
2007 9 13 54356 0.1651 0.2284 -0.16084
2007 9 14 54357 0.1632 0.2267 -0.16177
2007 9 15 54358 0.1612 0.2250 -0.16258
2007 9 16 54359 0.1593 0.2233 -0.16323
2007 9 17 54360 0.1573 0.2217 -0.16372
2007 9 18 54361 0.1553 0.2201 -0.16408
2007 9 19 54362 0.1532 0.2186 -0.16435
2007 9 20 54363 0.1511 0.2171 -0.16460
2007 9 21 54364 0.1490 0.2156 -0.16491
2007 9 22 54365 0.1469 0.2141 -0.16537
2007 9 23 54366 0.1447 0.2127 -0.16609
2007 9 24 54367 0.1425 0.2113 -0.16712
2007 9 25 54368 0.1403 0.2099 -0.16848
2007 9 26 54369 0.1380 0.2086 -0.17010
2007 9 27 54370 0.1358 0.2073 -0.17184
2007 9 28 54371 0.1335 0.2061 -0.17352
2007 9 29 54372 0.1312 0.2048 -0.17498
2007 9 30 54373 0.1288 0.2036 -0.17613
2007 10 1 54374 0.1264 0.2025 -0.17698
2007 10 2 54375 0.1241 0.2014 -0.17762
2007 10 3 54376 0.1217 0.2003 -0.17819
2007 10 4 54377 0.1192 0.1993 -0.17882
2007 10 5 54378 0.1168 0.1983 -0.17962
2007 10 6 54379 0.1143 0.1973 -0.18061
2007 10 7 54380 0.1118 0.1964 -0.18180
2007 10 8 54381 0.1093 0.1955 -0.18315
2007 10 9 54382 0.1068 0.1946 -0.18459
2007 10 10 54383 0.1043 0.1938 -0.18605
2007 10 11 54384 0.1017 0.1930 -0.18745
2007 10 12 54385 0.0991 0.1923 -0.18874
2007 10 13 54386 0.0965 0.1916 -0.18987
2007 10 14 54387 0.0939 0.1910 -0.19082
2007 10 15 54388 0.0913 0.1903 -0.19161
2007 10 16 54389 0.0887 0.1898 -0.19229
2007 10 17 54390 0.0861 0.1892 -0.19290
2007 10 18 54391 0.0834 0.1887 -0.19352
2007 10 19 54392 0.0807 0.1883 -0.19423
2007 10 20 54393 0.0781 0.1879 -0.19511
2007 10 21 54394 0.0754 0.1875 -0.19622
2007 10 22 54395 0.0727 0.1872 -0.19761
2007 10 23 54396 0.0700 0.1869 -0.19924
2007 10 24 54397 0.0673 0.1866 -0.20103
2007 10 25 54398 0.0646 0.1864 -0.20283
2007 10 26 54399 0.0619 0.1862 -0.20446
2007 10 27 54400 0.0591 0.1861 -0.20581
2007 10 28 54401 0.0564 0.1860 -0.20683
2007 10 29 54402 0.0537 0.1860 -0.20758
2007 10 30 54403 0.0509 0.1860 -0.20822
2007 10 31 54404 0.0482 0.1860 -0.20888
2007 11 1 54405 0.0455 0.1861 -0.20969
2007 11 2 54406 0.0427 0.1862 -0.21071
2007 11 3 54407 0.0400 0.1864 -0.21196
2007 11 4 54408 0.0372 0.1866 -0.21337
2007 11 5 54409 0.0345 0.1868 -0.21490
2007 11 6 54410 0.0318 0.1871 -0.21648
2007 11 7 54411 0.0290 0.1874 -0.21803
2007 11 8 54412 0.0263 0.1878 -0.21950
2007 11 9 54413 0.0236 0.1882 -0.22085
2007 11 10 54414 0.0209 0.1887 -0.22205
2007 11 11 54415 0.0181 0.1892 -0.22308
2007 11 12 54416 0.0154 0.1897 -0.22396
2007 11 13 54417 0.0127 0.1903 -0.22473
2007 11 14 54418 0.0100 0.1909 -0.22547
2007 11 15 54419 0.0073 0.1916 -0.22625
2007 11 16 54420 0.0047 0.1923 -0.22716
2007 11 17 54421 0.0020 0.1930 -0.22828
2007 11 18 54422 -0.0007 0.1938 -0.22963
2007 11 19 54423 -0.0033 0.1946 -0.23120
2007 11 20 54424 -0.0059 0.1955 -0.23293
2007 11 21 54425 -0.0086 0.1964 -0.23472
2007 11 22 54426 -0.0112 0.1974 -0.23642
2007 11 23 54427 -0.0138 0.1983 -0.23789
2007 11 24 54428 -0.0163 0.1994 -0.23907
2007 11 25 54429 -0.0189 0.2004 -0.23996
2007 11 26 54430 -0.0215 0.2015 -0.24061
2007 11 27 54431 -0.0240 0.2027 -0.24123
2007 11 28 54432 -0.0265 0.2038 -0.24192
2007 11 29 54433 -0.0290 0.2051 -0.24277
2007 11 30 54434 -0.0315 0.2063 -0.24384
2007 12 1 54435 -0.0339 0.2076 -0.24512
2007 12 2 54436 -0.0364 0.2089 -0.24653
2007 12 3 54437 -0.0388 0.2103 -0.24802
2007 12 4 54438 -0.0412 0.2117 -0.24937
2007 12 5 54439 -0.0435 0.2131 -0.25057
2007 12 6 54440 -0.0459 0.2146 -0.25161
2007 12 7 54441 -0.0482 0.2161 -0.25247
2007 12 8 54442 -0.0505 0.2177 -0.25313
2007 12 9 54443 -0.0528 0.2192 -0.25363
2007 12 10 54444 -0.0550 0.2209 -0.25401
2007 12 11 54445 -0.0573 0.2225 -0.25437
2007 12 12 54446 -0.0595 0.2242 -0.25479
2007 12 13 54447 -0.0616 0.2259 -0.25529
2007 12 14 54448 -0.0638 0.2276 -0.25597
2007 12 15 54449 -0.0659 0.2294 -0.25690
2007 12 16 54450 -0.0680 0.2312 -0.25804
2007 12 17 54451 -0.0700 0.2331 -0.25943
2007 12 18 54452 -0.0720 0.2350 -0.26095
2007 12 19 54453 -0.0740 0.2369 -0.26243
2007 12 20 54454 -0.0760 0.2388 -0.26374
2007 12 21 54455 -0.0779 0.2408 -0.26480
2007 12 22 54456 -0.0798 0.2428 -0.26560
2007 12 23 54457 -0.0817 0.2448 -0.26621
2007 12 24 54458 -0.0835 0.2468 -0.26673
2007 12 25 54459 -0.0853 0.2489 -0.26727
2007 12 26 54460 -0.0871 0.2510 -0.26799
2007 12 27 54461 -0.0888 0.2531 -0.26889
2007 12 28 54462 -0.0905 0.2553 -0.26996
2007 12 29 54463 -0.0922 0.2575 -0.27119
2007 12 30 54464 -0.0938 0.2597 -0.27250
2007 12 31 54465 -0.0954 0.2619 -0.27378
2008 1 1 54466 -0.0969 0.2642 -0.27493
2008 1 2 54467 -0.0984 0.2665 -0.27590
2008 1 3 54468 -0.0999 0.2688 -0.27667
2008 1 4 54469 -0.1013 0.2711 -0.27729
2008 1 5 54470 -0.1027 0.2734 -0.27773
2008 1 6 54471 -0.1041 0.2758 -0.27805
2008 1 7 54472 -0.1054 0.2782 -0.27832
2008 1 8 54473 -0.1067 0.2806 -0.27864
2008 1 9 54474 -0.1079 0.2830 -0.27911
2008 1 10 54475 -0.1091 0.2855 -0.27980
2008 1 11 54476 -0.1102 0.2879 -0.28079
2008 1 12 54477 -0.1113 0.2904 -0.28203
2008 1 13 54478 -0.1124 0.2929 -0.28345
2008 1 14 54479 -0.1134 0.2954 -0.28494
2008 1 15 54480 -0.1144 0.2979 -0.28645
2008 1 16 54481 -0.1154 0.3005 -0.28780
2008 1 17 54482 -0.1163 0.3030 -0.28889
2008 1 18 54483 -0.1171 0.3056 -0.28969
2008 1 19 54484 -0.1179 0.3082 -0.29026
2008 1 20 54485 -0.1187 0.3108 -0.29072
2008 1 21 54486 -0.1194 0.3134 -0.29124
2008 1 22 54487 -0.1201 0.3160 -0.29192
2008 1 23 54488 -0.1207 0.3186 -0.29284
2008 1 24 54489 -0.1213 0.3213 -0.29399
2008 1 25 54490 -0.1219 0.3239 -0.29538
2008 1 26 54491 -0.1224 0.3266 -0.29694
2008 1 27 54492 -0.1228 0.3292 -0.29855
2008 1 28 54493 -0.1232 0.3319 -0.30010
2008 1 29 54494 -0.1236 0.3346 -0.30149
2008 1 30 54495 -0.1239 0.3372 -0.30266
2008 1 31 54496 -0.1242 0.3399 -0.30362
2008 2 1 54497 -0.1244 0.3426 -0.30442
2008 2 2 54498 -0.1246 0.3453 -0.30503
2008 2 3 54499 -0.1247 0.3480 -0.30552
2008 2 4 54500 -0.1248 0.3507 -0.30600
2008 2 5 54501 -0.1248 0.3534 -0.30669
2008 2 6 54502 -0.1248 0.3561 -0.30765
2008 2 7 54503 -0.1248 0.3587 -0.30894
2008 2 8 54504 -0.1247 0.3614 -0.31053
2008 2 9 54505 -0.1245 0.3641 -0.31246
2008 2 10 54506 -0.1244 0.3668 -0.31456
2008 2 11 54507 -0.1241 0.3695 -0.31672
2008 2 12 54508 -0.1238 0.3722 -0.31875
2008 2 13 54509 -0.1235 0.3749 -0.32051
2008 2 14 54510 -0.1231 0.3775 -0.32199
2008 2 15 54511 -0.1227 0.3802 -0.32322
2008 2 16 54512 -0.1222 0.3828 -0.32425
2008 2 17 54513 -0.1217 0.3855 -0.32520
2008 2 18 54514 -0.1212 0.3881 -0.32619
2008 2 19 54515 -0.1206 0.3908 -0.32733
2008 2 20 54516 -0.1199 0.3934 -0.32866
2008 2 21 54517 -0.1192 0.3960 -0.33013
2008 2 22 54518 -0.1185 0.3986 -0.33172
2008 2 23 54519 -0.1177 0.4012 -0.33336
2008 2 24 54520 -0.1169 0.4038 -0.33488
2008 2 25 54521 -0.1160 0.4063 -0.33621
2008 2 26 54522 -0.1151 0.4089 -0.33728
2008 2 27 54523 -0.1141 0.4114 -0.33812
2008 2 28 54524 -0.1131 0.4139 -0.33875
2008 2 29 54525 -0.1120 0.4165 -0.33921
2008 3 1 54526 -0.1109 0.4189 -0.33952
2008 3 2 54527 -0.1098 0.4214 -0.33976
2008 3 3 54528 -0.1086 0.4239 -0.34008
2008 3 4 54529 -0.1074 0.4263 -0.34056
2008 3 5 54530 -0.1061 0.4287 -0.34125
2008 3 6 54531 -0.1048 0.4311 -0.34220
2008 3 7 54532 -0.1035 0.4335 -0.34347
2008 3 8 54533 -0.1021 0.4359 -0.34498
2008 3 9 54534 -0.1006 0.4382 -0.34664
2008 3 10 54535 -0.0991 0.4405 -0.34827
2008 3 11 54536 -0.0976 0.4428 -0.34973
2008 3 12 54537 -0.0961 0.4451 -0.35092
2008 3 13 54538 -0.0945 0.4473 -0.35189
2008 3 14 54539 -0.0928 0.4495 -0.35271
2008 3 15 54540 -0.0912 0.4517 -0.35346
2008 3 16 54541 -0.0895 0.4539 -0.35427
2008 3 17 54542 -0.0877 0.4560 -0.35522
2008 3 18 54543 -0.0859 0.4582 -0.35640
2008 3 19 54544 -0.0841 0.4602 -0.35778
2008 3 20 54545 -0.0822 0.4623 -0.35934
2008 3 21 54546 -0.0803 0.4643 -0.36104
2008 3 22 54547 -0.0784 0.4663 -0.36280
2008 3 23 54548 -0.0764 0.4683 -0.36450
2008 3 24 54549 -0.0744 0.4702 -0.36599
2008 3 25 54550 -0.0724 0.4722 -0.36725
2008 3 26 54551 -0.0703 0.4740 -0.36828
2008 3 27 54552 -0.0682 0.4759 -0.36914
2008 3 28 54553 -0.0660 0.4777 -0.36994
2008 3 29 54554 -0.0639 0.4795 -0.37076
2008 3 30 54555 -0.0617 0.4812 -0.37164
2008 3 31 54556 -0.0594 0.4829 -0.37267
2008 4 1 54557 -0.0572 0.4846 -0.37399
2008 4 2 54558 -0.0549 0.4863 -0.37560
2008 4 3 54559 -0.0525 0.4879 -0.37746
2008 4 4 54560 -0.0502 0.4895 -0.37957
2008 4 5 54561 -0.0478 0.4910 -0.38180
2008 4 6 54562 -0.0454 0.4925 -0.38395
2008 4 7 54563 -0.0430 0.4940 -0.38588
2008 4 8 54564 -0.0405 0.4954 -0.38749
2008 4 9 54565 -0.0380 0.4968 -0.38874
2008 4 10 54566 -0.0355 0.4981 -0.38973
2008 4 11 54567 -0.0330 0.4995 -0.39062
2008 4 12 54568 -0.0304 0.5007 -0.39151
2008 4 13 54569 -0.0278 0.5020 -0.39255
2008 4 14 54570 -0.0252 0.5032 -0.39378
2008 4 15 54571 -0.0226 0.5043 -0.39519
2008 4 16 54572 -0.0199 0.5054 -0.39666
2008 4 17 54573 -0.0172 0.5065 -0.39815
2008 4 18 54574 -0.0146 0.5076 -0.39966
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)
54190 -55.10 .15 -5.85 .10
54191 -55.00 .15 -5.57 .10
54192 -54.88 .15 -5.43 .10
54193 -54.80 .25 -5.56 .12
54194 -54.79 .25 -5.91 .12
54195 -54.81 .25 -6.26 .12
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54190 0.321 0.060 -0.249 0.100
54191 0.308 0.060 -0.229 0.100
54192 0.301 0.060 -0.224 0.100
54193 0.290 0.099 -0.228 0.120
54194 0.280 0.099 -0.253 0.120
54195 0.276 0.099 -0.276 0.120
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.