**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
8 March 2007 Vol. XX No. 010
______________________________________________________________________
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. 010, on 08 March 2007, we have *
* incorporated the new USNO VLBI solutions usno2007a and int2007a. *
* The effect appears to be less than 0.10 mas in polar motion and *
* 10 us in UT1-UTC. *
**********************************************************************
________________________________________________________________________
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 2 54161 -.01311 .00010 .44523 .00011 -.031309 .000009
7 3 3 54162 -.01273 .00010 .44710 .00011 -.032253 .000008
7 3 4 54163 -.01228 .00009 .44855 .00010 -.033339 .000007
7 3 5 54164 -.01164 .00009 .44981 .00010 -.034539 .000008
7 3 6 54165 -.01112 .00010 .45097 .00010 -.035785 .000008
7 3 7 54166 -.01054 .00010 .45208 .00010 -.037004 .000048
7 3 8 54167 -.00979 .00009 .45354 .00010 -.038150 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
7 1 5 54105 -.0545 .3524 .03526
7 1 6 54106 -.0559 .3539 .03447
7 1 7 54107 -.0567 .3553 .03349
7 1 8 54108 -.0571 .3569 .03234
7 1 9 54109 -.0575 .3588 .03107
7 1 10 54110 -.0581 .3610 .02972
7 1 11 54111 -.0589 .3628 .02834
7 1 12 54112 -.0591 .3644 .02707
7 1 13 54113 -.0587 .3662 .02583
7 1 14 54114 -.0583 .3679 .02480
7 1 15 54115 -.0580 .3694 .02386
7 1 16 54116 -.0574 .3712 .02302
7 1 17 54117 -.0569 .3730 .02220
7 1 18 54118 -.0565 .3747 .02140
7 1 19 54119 -.0559 .3770 .02045
7 1 20 54120 -.0557 .3795 .01922
7 1 21 54121 -.0556 .3815 .01768
7 1 22 54122 -.0554 .3831 .01585
7 1 23 54123 -.0550 .3848 .01381
7 1 24 54124 -.0548 .3867 .01168
7 1 25 54125 -.0546 .3886 .00963
7 1 26 54126 -.0543 .3903 .00779
7 1 27 54127 -.0537 .3919 .00621
7 1 28 54128 -.0529 .3936 .00490
7 1 29 54129 -.0519 .3955 .00383
7 1 30 54130 -.0509 .3975 .00283
7 1 31 54131 -.0502 .3993 .00183
7 2 1 54132 -.0498 .4008 .00073
7 2 2 54133 -.0491 .4019 -.00053
7 2 3 54134 -.0478 .4028 -.00195
_______________________________________________________________________
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 = .0539 - .0831 cos A + .0009 sin A + .0180 cos C + .1085 sin C
y = .3451 + .0007 cos A + .0727 sin A + .1085 cos C - .0180 sin C
UT1-UTC = -.0335 - .00096 (MJD - 54172) - (UT2-UT1)
where A = 2*pi*(MJD-54167)/365.25 and C = 2*pi*(MJD-54167)/435.
TAI-UTC(MJD 54168) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54167)**0.80 S t = 0.00025 (MJD-54167)**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 9 54168 -0.0090 0.4551 -0.03912
2007 3 10 54169 -0.0080 0.4565 -0.03988
2007 3 11 54170 -0.0070 0.4579 -0.04044
2007 3 12 54171 -0.0058 0.4591 -0.04088
2007 3 13 54172 -0.0045 0.4603 -0.04131
2007 3 14 54173 -0.0032 0.4614 -0.04182
2007 3 15 54174 -0.0018 0.4624 -0.04250
2007 3 16 54175 -0.0003 0.4634 -0.04346
2007 3 17 54176 0.0012 0.4643 -0.04475
2007 3 18 54177 0.0028 0.4651 -0.04638
2007 3 19 54178 0.0045 0.4659 -0.04827
2007 3 20 54179 0.0062 0.4667 -0.05027
2007 3 21 54180 0.0080 0.4674 -0.05219
2007 3 22 54181 0.0097 0.4681 -0.05388
2007 3 23 54182 0.0116 0.4687 -0.05527
2007 3 24 54183 0.0134 0.4694 -0.05642
2007 3 25 54184 0.0153 0.4699 -0.05743
2007 3 26 54185 0.0172 0.4705 -0.05844
2007 3 27 54186 0.0192 0.4710 -0.05955
2007 3 28 54187 0.0211 0.4715 -0.06084
2007 3 29 54188 0.0231 0.4719 -0.06234
2007 3 30 54189 0.0251 0.4723 -0.06403
2007 3 31 54190 0.0271 0.4727 -0.06588
2007 4 1 54191 0.0292 0.4731 -0.06783
2007 4 2 54192 0.0312 0.4734 -0.06981
2007 4 3 54193 0.0333 0.4737 -0.07175
2007 4 4 54194 0.0353 0.4740 -0.07357
2007 4 5 54195 0.0374 0.4742 -0.07524
2007 4 6 54196 0.0395 0.4744 -0.07673
2007 4 7 54197 0.0416 0.4746 -0.07804
2007 4 8 54198 0.0437 0.4748 -0.07920
2007 4 9 54199 0.0458 0.4749 -0.08027
2007 4 10 54200 0.0479 0.4750 -0.08135
2007 4 11 54201 0.0501 0.4751 -0.08254
2007 4 12 54202 0.0522 0.4751 -0.08394
2007 4 13 54203 0.0543 0.4751 -0.08562
2007 4 14 54204 0.0565 0.4751 -0.08762
2007 4 15 54205 0.0586 0.4750 -0.08988
2007 4 16 54206 0.0607 0.4749 -0.09225
2007 4 17 54207 0.0629 0.4748 -0.09455
2007 4 18 54208 0.0650 0.4746 -0.09661
2007 4 19 54209 0.0672 0.4745 -0.09833
2007 4 20 54210 0.0693 0.4743 -0.09969
2007 4 21 54211 0.0715 0.4740 -0.10080
2007 4 22 54212 0.0736 0.4737 -0.10179
2007 4 23 54213 0.0758 0.4734 -0.10279
2007 4 24 54214 0.0779 0.4731 -0.10390
2007 4 25 54215 0.0800 0.4727 -0.10517
2007 4 26 54216 0.0822 0.4723 -0.10659
2007 4 27 54217 0.0843 0.4718 -0.10813
2007 4 28 54218 0.0865 0.4714 -0.10974
2007 4 29 54219 0.0886 0.4709 -0.11137
2007 4 30 54220 0.0907 0.4703 -0.11293
2007 5 1 54221 0.0928 0.4697 -0.11438
2007 5 2 54222 0.0950 0.4691 -0.11567
2007 5 3 54223 0.0971 0.4685 -0.11675
2007 5 4 54224 0.0992 0.4678 -0.11764
2007 5 5 54225 0.1013 0.4671 -0.11836
2007 5 6 54226 0.1034 0.4664 -0.11898
2007 5 7 54227 0.1055 0.4656 -0.11957
2007 5 8 54228 0.1076 0.4648 -0.12023
2007 5 9 54229 0.1096 0.4639 -0.12104
2007 5 10 54230 0.1117 0.4631 -0.12209
2007 5 11 54231 0.1138 0.4622 -0.12341
2007 5 12 54232 0.1158 0.4612 -0.12498
2007 5 13 54233 0.1179 0.4603 -0.12672
2007 5 14 54234 0.1199 0.4592 -0.12847
2007 5 15 54235 0.1219 0.4582 -0.13007
2007 5 16 54236 0.1239 0.4571 -0.13138
2007 5 17 54237 0.1259 0.4560 -0.13234
2007 5 18 54238 0.1279 0.4549 -0.13300
2007 5 19 54239 0.1299 0.4537 -0.13347
2007 5 20 54240 0.1318 0.4525 -0.13391
2007 5 21 54241 0.1338 0.4513 -0.13443
2007 5 22 54242 0.1357 0.4501 -0.13510
2007 5 23 54243 0.1377 0.4488 -0.13595
2007 5 24 54244 0.1396 0.4475 -0.13693
2007 5 25 54245 0.1415 0.4461 -0.13800
2007 5 26 54246 0.1433 0.4448 -0.13909
2007 5 27 54247 0.1452 0.4434 -0.14014
2007 5 28 54248 0.1470 0.4420 -0.14108
2007 5 29 54249 0.1489 0.4405 -0.14186
2007 5 30 54250 0.1507 0.4390 -0.14246
2007 5 31 54251 0.1525 0.4375 -0.14286
2007 6 1 54252 0.1543 0.4360 -0.14309
2007 6 2 54253 0.1562 0.4344 -0.14320
2007 6 3 54254 0.1579 0.4328 -0.14327
2007 6 4 54255 0.1596 0.4312 -0.14338
2007 6 5 54256 0.1613 0.4295 -0.14364
2007 6 6 54257 0.1630 0.4279 -0.14410
2007 6 7 54258 0.1646 0.4262 -0.14481
2007 6 8 54259 0.1662 0.4245 -0.14576
2007 6 9 54260 0.1678 0.4227 -0.14687
2007 6 10 54261 0.1694 0.4209 -0.14802
2007 6 11 54262 0.1710 0.4191 -0.14908
2007 6 12 54263 0.1725 0.4173 -0.14991
2007 6 13 54264 0.1740 0.4155 -0.15043
2007 6 14 54265 0.1755 0.4136 -0.15065
2007 6 15 54266 0.1770 0.4118 -0.15065
2007 6 16 54267 0.1784 0.4099 -0.15056
2007 6 17 54268 0.1798 0.4079 -0.15051
2007 6 18 54269 0.1812 0.4060 -0.15061
2007 6 19 54270 0.1826 0.4040 -0.15089
2007 6 20 54271 0.1839 0.4021 -0.15132
2007 6 21 54272 0.1852 0.4001 -0.15187
2007 6 22 54273 0.1865 0.3981 -0.15246
2007 6 23 54274 0.1877 0.3960 -0.15302
2007 6 24 54275 0.1890 0.3940 -0.15349
2007 6 25 54276 0.1902 0.3919 -0.15383
2007 6 26 54277 0.1913 0.3898 -0.15398
2007 6 27 54278 0.1924 0.3877 -0.15395
2007 6 28 54279 0.1935 0.3856 -0.15376
2007 6 29 54280 0.1946 0.3835 -0.15343
2007 6 30 54281 0.1957 0.3814 -0.15306
2007 7 1 54282 0.1967 0.3792 -0.15272
2007 7 2 54283 0.1976 0.3771 -0.15252
2007 7 3 54284 0.1986 0.3749 -0.15254
2007 7 4 54285 0.1995 0.3727 -0.15282
2007 7 5 54286 0.2004 0.3705 -0.15334
2007 7 6 54287 0.2012 0.3683 -0.15404
2007 7 7 54288 0.2020 0.3661 -0.15481
2007 7 8 54289 0.2028 0.3639 -0.15552
2007 7 9 54290 0.2035 0.3616 -0.15602
2007 7 10 54291 0.2042 0.3594 -0.15626
2007 7 11 54292 0.2049 0.3572 -0.15622
2007 7 12 54293 0.2055 0.3549 -0.15595
2007 7 13 54294 0.2061 0.3526 -0.15558
2007 7 14 54295 0.2067 0.3504 -0.15522
2007 7 15 54296 0.2072 0.3481 -0.15499
2007 7 16 54297 0.2077 0.3458 -0.15496
2007 7 17 54298 0.2081 0.3436 -0.15512
2007 7 18 54299 0.2086 0.3413 -0.15543
2007 7 19 54300 0.2089 0.3390 -0.15582
2007 7 20 54301 0.2093 0.3367 -0.15621
2007 7 21 54302 0.2096 0.3344 -0.15654
2007 7 22 54303 0.2098 0.3322 -0.15675
2007 7 23 54304 0.2101 0.3299 -0.15680
2007 7 24 54305 0.2103 0.3276 -0.15668
2007 7 25 54306 0.2104 0.3253 -0.15638
2007 7 26 54307 0.2105 0.3230 -0.15596
2007 7 27 54308 0.2106 0.3207 -0.15548
2007 7 28 54309 0.2106 0.3185 -0.15501
2007 7 29 54310 0.2106 0.3162 -0.15467
2007 7 30 54311 0.2106 0.3139 -0.15455
2007 7 31 54312 0.2105 0.3117 -0.15471
2007 8 1 54313 0.2104 0.3094 -0.15516
2007 8 2 54314 0.2102 0.3072 -0.15583
2007 8 3 54315 0.2100 0.3049 -0.15662
2007 8 4 54316 0.2098 0.3027 -0.15737
2007 8 5 54317 0.2095 0.3004 -0.15794
2007 8 6 54318 0.2092 0.2982 -0.15825
2007 8 7 54319 0.2088 0.2960 -0.15829
2007 8 8 54320 0.2084 0.2938 -0.15810
2007 8 9 54321 0.2080 0.2916 -0.15779
2007 8 10 54322 0.2075 0.2894 -0.15749
2007 8 11 54323 0.2070 0.2872 -0.15729
2007 8 12 54324 0.2064 0.2851 -0.15729
2007 8 13 54325 0.2058 0.2829 -0.15751
2007 8 14 54326 0.2052 0.2808 -0.15791
2007 8 15 54327 0.2045 0.2786 -0.15844
2007 8 16 54328 0.2038 0.2765 -0.15902
2007 8 17 54329 0.2030 0.2744 -0.15956
2007 8 18 54330 0.2022 0.2723 -0.16001
2007 8 19 54331 0.2014 0.2702 -0.16032
2007 8 20 54332 0.2005 0.2682 -0.16046
2007 8 21 54333 0.1996 0.2661 -0.16043
2007 8 22 54334 0.1987 0.2641 -0.16028
2007 8 23 54335 0.1977 0.2621 -0.16004
2007 8 24 54336 0.1967 0.2601 -0.15979
2007 8 25 54337 0.1956 0.2581 -0.15963
2007 8 26 54338 0.1945 0.2561 -0.15966
2007 8 27 54339 0.1934 0.2542 -0.15996
2007 8 28 54340 0.1922 0.2523 -0.16058
2007 8 29 54341 0.1910 0.2504 -0.16147
2007 8 30 54342 0.1897 0.2485 -0.16253
2007 8 31 54343 0.1885 0.2466 -0.16360
2007 9 1 54344 0.1871 0.2448 -0.16451
2007 9 2 54345 0.1858 0.2429 -0.16514
2007 9 3 54346 0.1844 0.2411 -0.16546
2007 9 4 54347 0.1830 0.2394 -0.16551
2007 9 5 54348 0.1815 0.2376 -0.16540
2007 9 6 54349 0.1800 0.2358 -0.16527
2007 9 7 54350 0.1785 0.2341 -0.16526
2007 9 8 54351 0.1769 0.2324 -0.16545
2007 9 9 54352 0.1753 0.2308 -0.16589
2007 9 10 54353 0.1737 0.2291 -0.16656
2007 9 11 54354 0.1720 0.2275 -0.16741
2007 9 12 54355 0.1704 0.2259 -0.16835
2007 9 13 54356 0.1686 0.2243 -0.16929
2007 9 14 54357 0.1669 0.2228 -0.17016
2007 9 15 54358 0.1651 0.2213 -0.17091
2007 9 16 54359 0.1632 0.2198 -0.17150
2007 9 17 54360 0.1614 0.2183 -0.17193
2007 9 18 54361 0.1595 0.2169 -0.17222
2007 9 19 54362 0.1575 0.2155 -0.17243
2007 9 20 54363 0.1556 0.2142 -0.17263
2007 9 21 54364 0.1536 0.2128 -0.17289
2007 9 22 54365 0.1516 0.2115 -0.17332
2007 9 23 54366 0.1495 0.2102 -0.17401
2007 9 24 54367 0.1475 0.2090 -0.17502
2007 9 25 54368 0.1454 0.2078 -0.17637
2007 9 26 54369 0.1433 0.2066 -0.17798
2007 9 27 54370 0.1411 0.2054 -0.17972
2007 9 28 54371 0.1390 0.2043 -0.18140
2007 9 29 54372 0.1368 0.2031 -0.18286
2007 9 30 54373 0.1346 0.2021 -0.18402
2007 10 1 54374 0.1323 0.2010 -0.18486
2007 10 2 54375 0.1301 0.2000 -0.18548
2007 10 3 54376 0.1278 0.1990 -0.18602
2007 10 4 54377 0.1255 0.1980 -0.18662
2007 10 5 54378 0.1232 0.1971 -0.18737
2007 10 6 54379 0.1208 0.1962 -0.18833
2007 10 7 54380 0.1185 0.1953 -0.18950
2007 10 8 54381 0.1161 0.1945 -0.19085
2007 10 9 54382 0.1137 0.1937 -0.19235
2007 10 10 54383 0.1113 0.1929 -0.19389
2007 10 11 54384 0.1089 0.1922 -0.19536
2007 10 12 54385 0.1064 0.1915 -0.19667
2007 10 13 54386 0.1040 0.1908 -0.19785
2007 10 14 54387 0.1015 0.1902 -0.19883
2007 10 15 54388 0.0990 0.1896 -0.19961
2007 10 16 54389 0.0965 0.1890 -0.20024
2007 10 17 54390 0.0940 0.1884 -0.20080
2007 10 18 54391 0.0914 0.1879 -0.20142
2007 10 19 54392 0.0889 0.1874 -0.20219
2007 10 20 54393 0.0864 0.1870 -0.20318
2007 10 21 54394 0.0838 0.1866 -0.20446
2007 10 22 54395 0.0812 0.1862 -0.20605
2007 10 23 54396 0.0787 0.1859 -0.20797
2007 10 24 54397 0.0761 0.1856 -0.21016
2007 10 25 54398 0.0735 0.1853 -0.21243
2007 10 26 54399 0.0709 0.1851 -0.21457
2007 10 27 54400 0.0683 0.1849 -0.21642
2007 10 28 54401 0.0657 0.1847 -0.21789
2007 10 29 54402 0.0630 0.1845 -0.21908
2007 10 30 54403 0.0604 0.1844 -0.22010
2007 10 31 54404 0.0578 0.1844 -0.22106
2007 11 1 54405 0.0552 0.1843 -0.22208
2007 11 2 54406 0.0525 0.1843 -0.22326
2007 11 3 54407 0.0499 0.1844 -0.22472
2007 11 4 54408 0.0473 0.1845 -0.22640
2007 11 5 54409 0.0447 0.1846 -0.22824
2007 11 6 54410 0.0420 0.1847 -0.23013
2007 11 7 54411 0.0394 0.1849 -0.23209
2007 11 8 54412 0.0368 0.1851 -0.23394
2007 11 9 54413 0.0342 0.1853 -0.23567
2007 11 10 54414 0.0315 0.1856 -0.23721
2007 11 11 54415 0.0289 0.1860 -0.23852
2007 11 12 54416 0.0263 0.1863 -0.23967
2007 11 13 54417 0.0237 0.1867 -0.24072
2007 11 14 54418 0.0211 0.1871 -0.24171
2007 11 15 54419 0.0185 0.1876 -0.24272
2007 11 16 54420 0.0159 0.1881 -0.24382
2007 11 17 54421 0.0134 0.1886 -0.24508
2007 11 18 54422 0.0108 0.1892 -0.24656
2007 11 19 54423 0.0082 0.1898 -0.24822
2007 11 20 54424 0.0057 0.1904 -0.25005
2007 11 21 54425 0.0031 0.1911 -0.25197
2007 11 22 54426 0.0006 0.1918 -0.25375
2007 11 23 54427 -0.0019 0.1925 -0.25525
2007 11 24 54428 -0.0044 0.1933 -0.25635
2007 11 25 54429 -0.0069 0.1941 -0.25712
2007 11 26 54430 -0.0094 0.1950 -0.25764
2007 11 27 54431 -0.0118 0.1959 -0.25806
2007 11 28 54432 -0.0143 0.1968 -0.25850
2007 11 29 54433 -0.0167 0.1977 -0.25905
2007 11 30 54434 -0.0191 0.1987 -0.25978
2007 12 1 54435 -0.0215 0.1997 -0.26068
2007 12 2 54436 -0.0239 0.2008 -0.26164
2007 12 3 54437 -0.0262 0.2019 -0.26259
2007 12 4 54438 -0.0286 0.2030 -0.26352
2007 12 5 54439 -0.0309 0.2042 -0.26439
2007 12 6 54440 -0.0332 0.2053 -0.26516
2007 12 7 54441 -0.0355 0.2066 -0.26580
2007 12 8 54442 -0.0378 0.2078 -0.26629
2007 12 9 54443 -0.0400 0.2091 -0.26663
2007 12 10 54444 -0.0422 0.2104 -0.26692
2007 12 11 54445 -0.0444 0.2118 -0.26722
2007 12 12 54446 -0.0466 0.2132 -0.26759
2007 12 13 54447 -0.0487 0.2146 -0.26807
2007 12 14 54448 -0.0509 0.2161 -0.26872
2007 12 15 54449 -0.0530 0.2175 -0.26964
2007 12 16 54450 -0.0550 0.2191 -0.27076
2007 12 17 54451 -0.0571 0.2206 -0.27209
2007 12 18 54452 -0.0591 0.2222 -0.27358
2007 12 19 54453 -0.0611 0.2238 -0.27512
2007 12 20 54454 -0.0631 0.2254 -0.27656
2007 12 21 54455 -0.0650 0.2271 -0.27768
2007 12 22 54456 -0.0669 0.2288 -0.27848
2007 12 23 54457 -0.0688 0.2306 -0.27902
2007 12 24 54458 -0.0707 0.2323 -0.27945
2007 12 25 54459 -0.0725 0.2341 -0.27996
2007 12 26 54460 -0.0743 0.2359 -0.28068
2007 12 27 54461 -0.0760 0.2378 -0.28164
2007 12 28 54462 -0.0778 0.2397 -0.28283
2007 12 29 54463 -0.0795 0.2416 -0.28424
2007 12 30 54464 -0.0812 0.2435 -0.28574
2007 12 31 54465 -0.0828 0.2455 -0.28717
2008 1 1 54466 -0.0844 0.2474 -0.28851
2008 1 2 54467 -0.0860 0.2495 -0.28965
2008 1 3 54468 -0.0875 0.2515 -0.29056
2008 1 4 54469 -0.0890 0.2536 -0.29120
2008 1 5 54470 -0.0905 0.2557 -0.29164
2008 1 6 54471 -0.0919 0.2578 -0.29192
2008 1 7 54472 -0.0933 0.2599 -0.29213
2008 1 8 54473 -0.0947 0.2621 -0.29243
2008 1 9 54474 -0.0960 0.2643 -0.29283
2008 1 10 54475 -0.0973 0.2665 -0.29346
2008 1 11 54476 -0.0986 0.2687 -0.29433
2008 1 12 54477 -0.0998 0.2710 -0.29543
2008 1 13 54478 -0.1010 0.2732 -0.29664
2008 1 14 54479 -0.1022 0.2755 -0.29789
2008 1 15 54480 -0.1033 0.2779 -0.29916
2008 1 16 54481 -0.1044 0.2802 -0.30033
2008 1 17 54482 -0.1054 0.2826 -0.30122
2008 1 18 54483 -0.1064 0.2849 -0.30176
2008 1 19 54484 -0.1074 0.2873 -0.30199
2008 1 20 54485 -0.1083 0.2897 -0.30206
2008 1 21 54486 -0.1092 0.2922 -0.30212
2008 1 22 54487 -0.1100 0.2946 -0.30227
2008 1 23 54488 -0.1109 0.2971 -0.30261
2008 1 24 54489 -0.1116 0.2996 -0.30317
2008 1 25 54490 -0.1124 0.3021 -0.30393
2008 1 26 54491 -0.1130 0.3046 -0.30476
2008 1 27 54492 -0.1137 0.3071 -0.30554
2008 1 28 54493 -0.1143 0.3097 -0.30618
2008 1 29 54494 -0.1149 0.3122 -0.30665
2008 1 30 54495 -0.1154 0.3148 -0.30696
2008 1 31 54496 -0.1159 0.3174 -0.30710
2008 2 1 54497 -0.1163 0.3199 -0.30706
2008 2 2 54498 -0.1168 0.3225 -0.30691
2008 2 3 54499 -0.1171 0.3251 -0.30674
2008 2 4 54500 -0.1174 0.3278 -0.30667
2008 2 5 54501 -0.1177 0.3304 -0.30667
2008 2 6 54502 -0.1180 0.3330 -0.30682
2008 2 7 54503 -0.1182 0.3357 -0.30725
2008 2 8 54504 -0.1183 0.3383 -0.30797
2008 2 9 54505 -0.1185 0.3410 -0.30895
2008 2 10 54506 -0.1185 0.3436 -0.31007
2008 2 11 54507 -0.1186 0.3463 -0.31127
2008 2 12 54508 -0.1186 0.3490 -0.31239
2008 2 13 54509 -0.1185 0.3516 -0.31336
2008 2 14 54510 -0.1184 0.3543 -0.31407
2008 2 15 54511 -0.1183 0.3570 -0.31456
2008 2 16 54512 -0.1181 0.3596 -0.31484
2008 2 17 54513 -0.1179 0.3623 -0.31504
2008 2 18 54514 -0.1176 0.3650 -0.31534
2008 2 19 54515 -0.1173 0.3677 -0.31582
2008 2 20 54516 -0.1170 0.3703 -0.31647
2008 2 21 54517 -0.1166 0.3730 -0.31730
2008 2 22 54518 -0.1162 0.3757 -0.31826
2008 2 23 54519 -0.1157 0.3783 -0.31920
2008 2 24 54520 -0.1152 0.3810 -0.32006
2008 2 25 54521 -0.1147 0.3836 -0.32078
2008 2 26 54522 -0.1141 0.3863 -0.32129
2008 2 27 54523 -0.1134 0.3889 -0.32153
2008 2 28 54524 -0.1128 0.3915 -0.32159
2008 2 29 54525 -0.1121 0.3942 -0.32154
2008 3 1 54526 -0.1113 0.3968 -0.32141
2008 3 2 54527 -0.1105 0.3994 -0.32126
2008 3 3 54528 -0.1097 0.4020 -0.32117
2008 3 4 54529 -0.1088 0.4046 -0.32124
2008 3 5 54530 -0.1079 0.4071 -0.32161
2008 3 6 54531 -0.1069 0.4097 -0.32235
2008 3 7 54532 -0.1059 0.4122 -0.32346
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)
54148 -57.53 .74 -4.07 .34
54149 -57.14 .74 -3.83 .34
54150 -57.01 .74 -3.52 .34
54151 -57.31 .74 -3.41 .34
54152 -57.84 .24 -3.53 .20
54153 -58.28 .24 -3.76 .20
54154 -58.48 .24 -3.98 .20
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54105 -57.5 -2.4
54106 -57.2 -2.3
54107 -57.1 -2.3
54108 -57.0 -2.2
54109 -57.0 -2.1
54110 -57.1 -2.1
54111 -57.2 -2.0
54112 -57.3 -2.1
54113 -57.5 -2.2
54114 -57.6 -2.4
54115 -57.6 -2.7
54116 -57.6 -2.8
54117 -57.6 -2.9
54118 -57.6 -2.8
54119 -57.5 -2.7
54120 -57.5 -2.6
54121 -57.5 -2.5
54122 -57.5 -2.5
54123 -57.7 -2.5
54124 -58.0 -2.5
54125 -58.3 -2.5
54126 -58.5 -2.6
54127 -58.7 -2.7
54128 -58.7 -2.8
54129 -58.5 -3.0
54130 -58.0 -3.0
54131 -57.6 -3.1
54132 -57.3 -3.1
54133 -57.1 -3.0
54134 -57.0 -2.8
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54148 0.218 0.294 -0.245 0.340
54149 0.200 0.294 -0.260 0.340
54150 0.179 0.294 -0.297 0.340
54151 0.170 0.294 -0.335 0.340
54152 0.168 0.095 -0.333 0.200
54153 0.170 0.095 -0.328 0.200
54154 0.174 0.095 -0.331 0.200
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54105 0.10 -0.24
54106 0.14 -0.37
54107 0.13 -0.55
54108 0.17 -0.50
54109 0.22 -0.33
54110 0.26 -0.25
54111 0.31 -0.14
54112 0.35 -0.23
54113 0.33 -0.24
54114 0.33 -0.24
54115 0.33 -0.31
54116 0.32 -0.26
54117 0.34 -0.32
54118 0.38 -0.22
54119 0.41 -0.14
54120 0.33 -0.14
54121 0.23 -0.19
54122 0.20 -0.31
54123 0.21 -0.32
54124 0.24 -0.24
54125 0.26 -0.15
54126 0.26 -0.22
54127 0.20 -0.32
54128 0.18 -0.40
54129 0.18 -0.51
54130 0.23 -0.34
54131 0.20 -0.26
54132 0.17 -0.19
54133 0.16 -0.19
54134 0.16 -0.23
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.