**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
21 December 2006 Vol. XIX No. 051
______________________________________________________________________
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 28 September 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* No leap second will be introduced into UTC on December 31, 2006. *
* Last positive leap second introduced in UTC on December 31, 2005. *
* *
* See notice at the end of this Bulletin A for more details. *
**********************************************************************
________________________________________________________________________
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
6 12 15 54084 -.04779 .00003 .32488 .00004 .055660 .000013
6 12 16 54085 -.04881 .00003 .32623 .00003 .054438 .000013
6 12 17 54086 -.04951 .00002 .32763 .00003 .053401 .000013
6 12 18 54087 -.05004 .00002 .32915 .00002 .052582 .000013
6 12 19 54088 -.05046 .00002 .33062 .00002 .051895 .000013
6 12 20 54089 -.05103 .00002 .33185 .00002 .051309 .000011
6 12 21 54090 -.05188 .00002 .33294 .00002 .050756 .000009
_______________________________________________________________________
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 = .0670 - .0177 cos A - .1057 sin A - .1024 cos C + .0843 sin C
y = .3397 - .0901 cos A + .0161 sin A + .0843 cos C + .1024 sin C
UT1-UTC = .0301 - .00087 (MJD - 54095) - (UT2-UT1)
where A = 2*pi*(MJD-54090)/365.25 and C = 2*pi*(MJD-54090)/435.
TAI-UTC(MJD 54091) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54090)**0.80 S t = 0.00025 (MJD-54090)**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)
2006 12 22 54091 -0.0528 0.3341 0.05011
2006 12 23 54092 -0.0536 0.3353 0.04930
2006 12 24 54093 -0.0544 0.3366 0.04826
2006 12 25 54094 -0.0551 0.3380 0.04700
2006 12 26 54095 -0.0558 0.3395 0.04553
2006 12 27 54096 -0.0564 0.3411 0.04390
2006 12 28 54097 -0.0570 0.3426 0.04221
2006 12 29 54098 -0.0575 0.3443 0.04063
2006 12 30 54099 -0.0581 0.3460 0.03930
2006 12 31 54100 -0.0585 0.3477 0.03827
2007 1 1 54101 -0.0590 0.3494 0.03752
2007 1 2 54102 -0.0594 0.3512 0.03696
2007 1 3 54103 -0.0598 0.3530 0.03646
2007 1 4 54104 -0.0602 0.3548 0.03590
2007 1 5 54105 -0.0605 0.3566 0.03520
2007 1 6 54106 -0.0608 0.3584 0.03433
2007 1 7 54107 -0.0611 0.3603 0.03329
2007 1 8 54108 -0.0613 0.3622 0.03213
2007 1 9 54109 -0.0616 0.3640 0.03089
2007 1 10 54110 -0.0617 0.3659 0.02964
2007 1 11 54111 -0.0619 0.3678 0.02844
2007 1 12 54112 -0.0620 0.3697 0.02736
2007 1 13 54113 -0.0621 0.3716 0.02643
2007 1 14 54114 -0.0622 0.3735 0.02568
2007 1 15 54115 -0.0622 0.3754 0.02512
2007 1 16 54116 -0.0622 0.3773 0.02471
2007 1 17 54117 -0.0622 0.3792 0.02438
2007 1 18 54118 -0.0621 0.3811 0.02402
2007 1 19 54119 -0.0620 0.3830 0.02352
2007 1 20 54120 -0.0618 0.3849 0.02276
2007 1 21 54121 -0.0617 0.3868 0.02170
2007 1 22 54122 -0.0615 0.3886 0.02034
2007 1 23 54123 -0.0612 0.3905 0.01880
2007 1 24 54124 -0.0609 0.3924 0.01721
2007 1 25 54125 -0.0606 0.3943 0.01574
2007 1 26 54126 -0.0603 0.3962 0.01448
2007 1 27 54127 -0.0599 0.3980 0.01351
2007 1 28 54128 -0.0595 0.3999 0.01280
2007 1 29 54129 -0.0590 0.4017 0.01229
2007 1 30 54130 -0.0585 0.4036 0.01187
2007 1 31 54131 -0.0580 0.4054 0.01143
2007 2 1 54132 -0.0574 0.4073 0.01086
2007 2 2 54133 -0.0568 0.4091 0.01010
2007 2 3 54134 -0.0562 0.4109 0.00913
2007 2 4 54135 -0.0555 0.4127 0.00797
2007 2 5 54136 -0.0548 0.4145 0.00668
2007 2 6 54137 -0.0541 0.4163 0.00532
2007 2 7 54138 -0.0533 0.4181 0.00397
2007 2 8 54139 -0.0525 0.4199 0.00269
2007 2 9 54140 -0.0516 0.4216 0.00153
2007 2 10 54141 -0.0507 0.4234 0.00053
2007 2 11 54142 -0.0498 0.4251 -0.00030
2007 2 12 54143 -0.0489 0.4269 -0.00100
2007 2 13 54144 -0.0479 0.4286 -0.00160
2007 2 14 54145 -0.0468 0.4303 -0.00221
2007 2 15 54146 -0.0458 0.4320 -0.00292
2007 2 16 54147 -0.0447 0.4337 -0.00387
2007 2 17 54148 -0.0435 0.4353 -0.00514
2007 2 18 54149 -0.0424 0.4370 -0.00675
2007 2 19 54150 -0.0412 0.4386 -0.00863
2007 2 20 54151 -0.0399 0.4402 -0.01063
2007 2 21 54152 -0.0387 0.4418 -0.01257
2007 2 22 54153 -0.0373 0.4434 -0.01428
2007 2 23 54154 -0.0360 0.4450 -0.01570
2007 2 24 54155 -0.0346 0.4465 -0.01680
2007 2 25 54156 -0.0332 0.4480 -0.01766
2007 2 26 54157 -0.0318 0.4496 -0.01840
2007 2 27 54158 -0.0303 0.4510 -0.01914
2007 2 28 54159 -0.0288 0.4526 -0.01998
2007 3 1 54160 -0.0273 0.4540 -0.02098
2007 3 2 54161 -0.0257 0.4555 -0.02218
2007 3 3 54162 -0.0241 0.4569 -0.02356
2007 3 4 54163 -0.0225 0.4583 -0.02509
2007 3 5 54164 -0.0208 0.4596 -0.02670
2007 3 6 54165 -0.0191 0.4610 -0.02832
2007 3 7 54166 -0.0174 0.4623 -0.02988
2007 3 8 54167 -0.0157 0.4636 -0.03132
2007 3 9 54168 -0.0139 0.4648 -0.03262
2007 3 10 54169 -0.0121 0.4661 -0.03376
2007 3 11 54170 -0.0102 0.4673 -0.03474
2007 3 12 54171 -0.0084 0.4685 -0.03562
2007 3 13 54172 -0.0065 0.4697 -0.03646
2007 3 14 54173 -0.0046 0.4708 -0.03736
2007 3 15 54174 -0.0027 0.4719 -0.03845
2007 3 16 54175 -0.0007 0.4730 -0.03982
2007 3 17 54176 0.0013 0.4741 -0.04155
2007 3 18 54177 0.0033 0.4751 -0.04361
2007 3 19 54178 0.0053 0.4761 -0.04588
2007 3 20 54179 0.0074 0.4771 -0.04820
2007 3 21 54180 0.0095 0.4780 -0.05037
2007 3 22 54181 0.0116 0.4789 -0.05224
2007 3 23 54182 0.0137 0.4798 -0.05378
2007 3 24 54183 0.0159 0.4807 -0.05504
2007 3 25 54184 0.0180 0.4815 -0.05611
2007 3 26 54185 0.0202 0.4823 -0.05715
2007 3 27 54186 0.0224 0.4830 -0.05825
2007 3 28 54187 0.0246 0.4837 -0.05949
2007 3 29 54188 0.0269 0.4844 -0.06091
2007 3 30 54189 0.0291 0.4851 -0.06250
2007 3 31 54190 0.0314 0.4857 -0.06423
2007 4 1 54191 0.0337 0.4863 -0.06604
2007 4 2 54192 0.0360 0.4869 -0.06786
2007 4 3 54193 0.0383 0.4874 -0.06962
2007 4 4 54194 0.0406 0.4879 -0.07126
2007 4 5 54195 0.0430 0.4883 -0.07273
2007 4 6 54196 0.0453 0.4887 -0.07399
2007 4 7 54197 0.0477 0.4891 -0.07508
2007 4 8 54198 0.0501 0.4894 -0.07604
2007 4 9 54199 0.0525 0.4897 -0.07692
2007 4 10 54200 0.0549 0.4900 -0.07782
2007 4 11 54201 0.0573 0.4902 -0.07882
2007 4 12 54202 0.0597 0.4904 -0.08004
2007 4 13 54203 0.0621 0.4905 -0.08156
2007 4 14 54204 0.0645 0.4907 -0.08339
2007 4 15 54205 0.0670 0.4907 -0.08550
2007 4 16 54206 0.0694 0.4908 -0.08772
2007 4 17 54207 0.0718 0.4908 -0.08989
2007 4 18 54208 0.0743 0.4907 -0.09182
2007 4 19 54209 0.0767 0.4906 -0.09340
2007 4 20 54210 0.0792 0.4905 -0.09464
2007 4 21 54211 0.0816 0.4904 -0.09562
2007 4 22 54212 0.0841 0.4902 -0.09648
2007 4 23 54213 0.0865 0.4899 -0.09736
2007 4 24 54214 0.0890 0.4897 -0.09835
2007 4 25 54215 0.0914 0.4893 -0.09950
2007 4 26 54216 0.0939 0.4890 -0.10081
2007 4 27 54217 0.0963 0.4886 -0.10225
2007 4 28 54218 0.0988 0.4882 -0.10376
2007 4 29 54219 0.1012 0.4877 -0.10530
2007 4 30 54220 0.1037 0.4872 -0.10679
2007 5 1 54221 0.1061 0.4866 -0.10817
2007 5 2 54222 0.1085 0.4860 -0.10940
2007 5 3 54223 0.1109 0.4854 -0.11044
2007 5 4 54224 0.1133 0.4847 -0.11130
2007 5 5 54225 0.1157 0.4840 -0.11200
2007 5 6 54226 0.1181 0.4833 -0.11260
2007 5 7 54227 0.1205 0.4825 -0.11319
2007 5 8 54228 0.1229 0.4816 -0.11384
2007 5 9 54229 0.1252 0.4808 -0.11465
2007 5 10 54230 0.1276 0.4799 -0.11570
2007 5 11 54231 0.1299 0.4789 -0.11703
2007 5 12 54232 0.1323 0.4779 -0.11862
2007 5 13 54233 0.1346 0.4769 -0.12037
2007 5 14 54234 0.1369 0.4759 -0.12215
2007 5 15 54235 0.1391 0.4748 -0.12376
2007 5 16 54236 0.1414 0.4736 -0.12509
2007 5 17 54237 0.1436 0.4725 -0.12607
2007 5 18 54238 0.1459 0.4713 -0.12675
2007 5 19 54239 0.1481 0.4700 -0.12724
2007 5 20 54240 0.1503 0.4687 -0.12770
2007 5 21 54241 0.1525 0.4674 -0.12823
2007 5 22 54242 0.1546 0.4661 -0.12892
2007 5 23 54243 0.1568 0.4647 -0.12976
2007 5 24 54244 0.1589 0.4632 -0.13073
2007 5 25 54245 0.1610 0.4618 -0.13179
2007 5 26 54246 0.1630 0.4603 -0.13286
2007 5 27 54247 0.1651 0.4588 -0.13388
2007 5 28 54248 0.1671 0.4572 -0.13480
2007 5 29 54249 0.1691 0.4556 -0.13556
2007 5 30 54250 0.1711 0.4540 -0.13612
2007 5 31 54251 0.1731 0.4523 -0.13650
2007 6 1 54252 0.1750 0.4506 -0.13670
2007 6 2 54253 0.1769 0.4489 -0.13679
2007 6 3 54254 0.1788 0.4471 -0.13683
2007 6 4 54255 0.1806 0.4453 -0.13692
2007 6 5 54256 0.1825 0.4435 -0.13714
2007 6 6 54257 0.1843 0.4417 -0.13758
2007 6 7 54258 0.1860 0.4398 -0.13825
2007 6 8 54259 0.1878 0.4379 -0.13917
2007 6 9 54260 0.1895 0.4360 -0.14025
2007 6 10 54261 0.1912 0.4340 -0.14137
2007 6 11 54262 0.1928 0.4320 -0.14241
2007 6 12 54263 0.1945 0.4300 -0.14321
2007 6 13 54264 0.1961 0.4280 -0.14372
2007 6 14 54265 0.1976 0.4259 -0.14393
2007 6 15 54266 0.1992 0.4238 -0.14392
2007 6 16 54267 0.2007 0.4217 -0.14384
2007 6 17 54268 0.2021 0.4195 -0.14382
2007 6 18 54269 0.2036 0.4174 -0.14395
2007 6 19 54270 0.2050 0.4152 -0.14428
2007 6 20 54271 0.2063 0.4130 -0.14479
2007 6 21 54272 0.2077 0.4107 -0.14543
2007 6 22 54273 0.2090 0.4085 -0.14615
2007 6 23 54274 0.2103 0.4062 -0.14687
2007 6 24 54275 0.2115 0.4039 -0.14753
2007 6 25 54276 0.2127 0.4016 -0.14809
2007 6 26 54277 0.2139 0.3993 -0.14850
2007 6 27 54278 0.2150 0.3969 -0.14875
2007 6 28 54279 0.2161 0.3946 -0.14885
2007 6 29 54280 0.2172 0.3922 -0.14883
2007 6 30 54281 0.2182 0.3898 -0.14876
2007 7 1 54282 0.2193 0.3873 -0.14872
2007 7 2 54283 0.2203 0.3849 -0.14882
2007 7 3 54284 0.2212 0.3824 -0.14911
2007 7 4 54285 0.2221 0.3799 -0.14964
2007 7 5 54286 0.2230 0.3774 -0.15037
2007 7 6 54287 0.2239 0.3749 -0.15123
2007 7 7 54288 0.2247 0.3724 -0.15207
2007 7 8 54289 0.2254 0.3699 -0.15275
2007 7 9 54290 0.2262 0.3674 -0.15315
2007 7 10 54291 0.2269 0.3648 -0.15319
2007 7 11 54292 0.2275 0.3623 -0.15288
2007 7 12 54293 0.2281 0.3597 -0.15228
2007 7 13 54294 0.2287 0.3571 -0.15154
2007 7 14 54295 0.2293 0.3546 -0.15080
2007 7 15 54296 0.2298 0.3520 -0.15020
2007 7 16 54297 0.2302 0.3494 -0.14981
2007 7 17 54298 0.2307 0.3468 -0.14966
2007 7 18 54299 0.2310 0.3442 -0.14970
2007 7 19 54300 0.2314 0.3416 -0.14986
2007 7 20 54301 0.2317 0.3390 -0.15006
2007 7 21 54302 0.2320 0.3364 -0.15022
2007 7 22 54303 0.2322 0.3338 -0.15027
2007 7 23 54304 0.2324 0.3312 -0.15016
2007 7 24 54305 0.2325 0.3286 -0.14989
2007 7 25 54306 0.2326 0.3260 -0.14945
2007 7 26 54307 0.2327 0.3234 -0.14891
2007 7 27 54308 0.2327 0.3208 -0.14834
2007 7 28 54309 0.2327 0.3182 -0.14786
2007 7 29 54310 0.2326 0.3156 -0.14756
2007 7 30 54311 0.2326 0.3130 -0.14742
2007 7 31 54312 0.2324 0.3105 -0.14751
2007 8 1 54313 0.2322 0.3079 -0.14788
2007 8 2 54314 0.2320 0.3053 -0.14845
2007 8 3 54315 0.2318 0.3027 -0.14917
2007 8 4 54316 0.2315 0.3002 -0.14990
2007 8 5 54317 0.2312 0.2976 -0.15051
2007 8 6 54318 0.2308 0.2951 -0.15088
2007 8 7 54319 0.2304 0.2926 -0.15107
2007 8 8 54320 0.2299 0.2900 -0.15111
2007 8 9 54321 0.2294 0.2875 -0.15098
2007 8 10 54322 0.2289 0.2850 -0.15087
2007 8 11 54323 0.2283 0.2825 -0.15083
2007 8 12 54324 0.2277 0.2801 -0.15094
2007 8 13 54325 0.2270 0.2776 -0.15119
2007 8 14 54326 0.2264 0.2751 -0.15156
2007 8 15 54327 0.2256 0.2727 -0.15203
2007 8 16 54328 0.2249 0.2703 -0.15253
2007 8 17 54329 0.2240 0.2679 -0.15304
2007 8 18 54330 0.2232 0.2655 -0.15342
2007 8 19 54331 0.2223 0.2631 -0.15372
2007 8 20 54332 0.2214 0.2608 -0.15383
2007 8 21 54333 0.2204 0.2584 -0.15382
2007 8 22 54334 0.2194 0.2561 -0.15357
2007 8 23 54335 0.2184 0.2538 -0.15318
2007 8 24 54336 0.2173 0.2515 -0.15282
2007 8 25 54337 0.2162 0.2492 -0.15257
2007 8 26 54338 0.2150 0.2470 -0.15248
2007 8 27 54339 0.2138 0.2448 -0.15256
2007 8 28 54340 0.2126 0.2426 -0.15288
2007 8 29 54341 0.2113 0.2404 -0.15347
2007 8 30 54342 0.2100 0.2382 -0.15423
2007 8 31 54343 0.2086 0.2361 -0.15497
2007 9 1 54344 0.2072 0.2340 -0.15554
2007 9 2 54345 0.2058 0.2319 -0.15587
2007 9 3 54346 0.2044 0.2298 -0.15590
2007 9 4 54347 0.2029 0.2277 -0.15567
2007 9 5 54348 0.2013 0.2257 -0.15523
2007 9 6 54349 0.1998 0.2237 -0.15471
2007 9 7 54350 0.1982 0.2218 -0.15427
2007 9 8 54351 0.1965 0.2198 -0.15401
2007 9 9 54352 0.1948 0.2179 -0.15398
2007 9 10 54353 0.1931 0.2160 -0.15414
2007 9 11 54354 0.1914 0.2141 -0.15447
2007 9 12 54355 0.1896 0.2123 -0.15493
2007 9 13 54356 0.1878 0.2105 -0.15546
2007 9 14 54357 0.1859 0.2087 -0.15589
2007 9 15 54358 0.1841 0.2070 -0.15613
2007 9 16 54359 0.1821 0.2052 -0.15627
2007 9 17 54360 0.1802 0.2035 -0.15627
2007 9 18 54361 0.1782 0.2019 -0.15615
2007 9 19 54362 0.1762 0.2002 -0.15594
2007 9 20 54363 0.1741 0.1986 -0.15578
2007 9 21 54364 0.1721 0.1971 -0.15569
2007 9 22 54365 0.1699 0.1955 -0.15582
2007 9 23 54366 0.1678 0.1940 -0.15621
2007 9 24 54367 0.1656 0.1926 -0.15692
2007 9 25 54368 0.1634 0.1911 -0.15788
2007 9 26 54369 0.1612 0.1897 -0.15906
2007 9 27 54370 0.1589 0.1883 -0.16036
2007 9 28 54371 0.1566 0.1870 -0.16158
2007 9 29 54372 0.1543 0.1857 -0.16250
2007 9 30 54373 0.1520 0.1844 -0.16309
2007 10 1 54374 0.1496 0.1831 -0.16336
2007 10 2 54375 0.1472 0.1819 -0.16335
2007 10 3 54376 0.1447 0.1808 -0.16323
2007 10 4 54377 0.1423 0.1796 -0.16316
2007 10 5 54378 0.1398 0.1785 -0.16319
2007 10 6 54379 0.1373 0.1775 -0.16332
2007 10 7 54380 0.1347 0.1764 -0.16367
2007 10 8 54381 0.1322 0.1754 -0.16419
2007 10 9 54382 0.1296 0.1745 -0.16479
2007 10 10 54383 0.1270 0.1735 -0.16541
2007 10 11 54384 0.1243 0.1727 -0.16596
2007 10 12 54385 0.1217 0.1718 -0.16639
2007 10 13 54386 0.1190 0.1710 -0.16671
2007 10 14 54387 0.1163 0.1702 -0.16698
2007 10 15 54388 0.1136 0.1695 -0.16719
2007 10 16 54389 0.1108 0.1688 -0.16735
2007 10 17 54390 0.1080 0.1681 -0.16755
2007 10 18 54391 0.1053 0.1675 -0.16784
2007 10 19 54392 0.1024 0.1669 -0.16828
2007 10 20 54393 0.0996 0.1664 -0.16890
2007 10 21 54394 0.0968 0.1659 -0.16976
2007 10 22 54395 0.0939 0.1654 -0.17097
2007 10 23 54396 0.0910 0.1650 -0.17238
2007 10 24 54397 0.0881 0.1646 -0.17394
2007 10 25 54398 0.0852 0.1642 -0.17548
2007 10 26 54399 0.0823 0.1639 -0.17682
2007 10 27 54400 0.0794 0.1636 -0.17788
2007 10 28 54401 0.0764 0.1634 -0.17858
2007 10 29 54402 0.0735 0.1632 -0.17902
2007 10 30 54403 0.0705 0.1631 -0.17934
2007 10 31 54404 0.0675 0.1630 -0.17972
2007 11 1 54405 0.0645 0.1629 -0.18025
2007 11 2 54406 0.0615 0.1629 -0.18090
2007 11 3 54407 0.0585 0.1629 -0.18172
2007 11 4 54408 0.0554 0.1629 -0.18264
2007 11 5 54409 0.0524 0.1630 -0.18361
2007 11 6 54410 0.0493 0.1632 -0.18464
2007 11 7 54411 0.0463 0.1633 -0.18570
2007 11 8 54412 0.0432 0.1636 -0.18673
2007 11 9 54413 0.0402 0.1638 -0.18760
2007 11 10 54414 0.0371 0.1641 -0.18830
2007 11 11 54415 0.0340 0.1645 -0.18886
2007 11 12 54416 0.0309 0.1648 -0.18925
2007 11 13 54417 0.0279 0.1653 -0.18955
2007 11 14 54418 0.0248 0.1657 -0.18984
2007 11 15 54419 0.0217 0.1662 -0.19023
2007 11 16 54420 0.0186 0.1668 -0.19075
2007 11 17 54421 0.0155 0.1674 -0.19150
2007 11 18 54422 0.0125 0.1680 -0.19244
2007 11 19 54423 0.0094 0.1687 -0.19362
2007 11 20 54424 0.0063 0.1694 -0.19499
2007 11 21 54425 0.0032 0.1701 -0.19643
2007 11 22 54426 0.0002 0.1709 -0.19783
2007 11 23 54427 -0.0029 0.1718 -0.19907
2007 11 24 54428 -0.0059 0.1727 -0.20006
2007 11 25 54429 -0.0090 0.1736 -0.20075
2007 11 26 54430 -0.0120 0.1745 -0.20114
2007 11 27 54431 -0.0151 0.1755 -0.20137
2007 11 28 54432 -0.0181 0.1766 -0.20159
2007 11 29 54433 -0.0211 0.1777 -0.20192
2007 11 30 54434 -0.0241 0.1788 -0.20238
2007 12 1 54435 -0.0271 0.1800 -0.20293
2007 12 2 54436 -0.0300 0.1812 -0.20352
2007 12 3 54437 -0.0330 0.1824 -0.20415
2007 12 4 54438 -0.0359 0.1837 -0.20464
2007 12 5 54439 -0.0389 0.1850 -0.20501
2007 12 6 54440 -0.0418 0.1864 -0.20529
2007 12 7 54441 -0.0447 0.1878 -0.20543
2007 12 8 54442 -0.0475 0.1893 -0.20535
2007 12 9 54443 -0.0504 0.1907 -0.20512
2007 12 10 54444 -0.0532 0.1923 -0.20481
2007 12 11 54445 -0.0560 0.1938 -0.20447
2007 12 12 54446 -0.0588 0.1954 -0.20421
2007 12 13 54447 -0.0616 0.1971 -0.20407
2007 12 14 54448 -0.0644 0.1988 -0.20411
2007 12 15 54449 -0.0671 0.2005 -0.20435
2007 12 16 54450 -0.0698 0.2023 -0.20479
2007 12 17 54451 -0.0725 0.2041 -0.20538
2007 12 18 54452 -0.0751 0.2059 -0.20610
2007 12 19 54453 -0.0777 0.2078 -0.20686
2007 12 20 54454 -0.0803 0.2097 -0.20751
2007 12 21 54455 -0.0829 0.2116 -0.20795
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)
54071 -59.67 .24 -2.26 .34
54072 -59.80 .20 -2.34 .34
54073 -59.67 .20 -2.55 .34
54074 -59.45 .13 -2.73 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54071 0.077 0.095 -0.005 0.340
54072 0.068 0.080 0.007 0.340
54073 0.070 0.080 0.001 0.340
54074 0.081 0.052 -0.020 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.
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Important Notices - Important Notices - Important Notices
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A positive leap second was introduced in UTC on 31 December 2005.
The sequence of dates of the UTC second markers will be:
2005 December 31, 23h 59m 59s
2005 December 31, 23h 59m 60s
2006 January 1, 0h 0m 0s
The difference between UTC and the International Atomic Time (TAI) is:
from 1999 January 1, 0h UTC, to 2006 January 1 0h UTC : UTC-TAI = - 32s
from 2006 January 1, 0h UTC, until further notice : UTC-TAI = - 33s