**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
19 October 2006 Vol. XIX No. 042
______________________________________________________________________
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 10 13 54021 .01318 .00004 .25768 .00004 .128411 .000016
6 10 14 54022 .01128 .00004 .25746 .00003 .127573 .000015
6 10 15 54023 .00986 .00004 .25771 .00003 .126680 .000015
6 10 16 54024 .00849 .00003 .25845 .00003 .125684 .000011
6 10 17 54025 .00726 .00002 .25939 .00003 .124516 .000009
6 10 18 54026 .00623 .00002 .26027 .00003 .123203 .000008
6 10 19 54027 .00526 .00001 .26115 .00003 .121756 .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 = .0579 + .1124 cos A - .1005 sin A - .1717 cos C - .0137 sin C
y = .3557 - .0836 cos A - .1024 sin A - .0137 cos C + .1717 sin C
UT1-UTC = .0679 - .00074 (MJD - 54032) - (UT2-UT1)
where A = 2*pi*(MJD-54027)/365.25 and C = 2*pi*(MJD-54027)/435.
TAI-UTC(MJD 54028) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54027)**0.80 S t = 0.00025 (MJD-54027)**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 10 20 54028 0.0042 0.2620 0.12017
2006 10 21 54029 0.0030 0.2628 0.11854
2006 10 22 54030 0.0016 0.2636 0.11700
2006 10 23 54031 0.0002 0.2644 0.11562
2006 10 24 54032 -0.0013 0.2652 0.11438
2006 10 25 54033 -0.0029 0.2659 0.11332
2006 10 26 54034 -0.0045 0.2667 0.11241
2006 10 27 54035 -0.0062 0.2675 0.11160
2006 10 28 54036 -0.0080 0.2683 0.11084
2006 10 29 54037 -0.0098 0.2691 0.10997
2006 10 30 54038 -0.0117 0.2699 0.10885
2006 10 31 54039 -0.0136 0.2707 0.10737
2006 11 1 54040 -0.0156 0.2716 0.10552
2006 11 2 54041 -0.0176 0.2724 0.10339
2006 11 3 54042 -0.0196 0.2733 0.10113
2006 11 4 54043 -0.0216 0.2743 0.09893
2006 11 5 54044 -0.0236 0.2752 0.09695
2006 11 6 54045 -0.0257 0.2762 0.09529
2006 11 7 54046 -0.0278 0.2772 0.09398
2006 11 8 54047 -0.0298 0.2783 0.09295
2006 11 9 54048 -0.0319 0.2793 0.09207
2006 11 10 54049 -0.0340 0.2804 0.09121
2006 11 11 54050 -0.0361 0.2816 0.09026
2006 11 12 54051 -0.0381 0.2827 0.08918
2006 11 13 54052 -0.0402 0.2839 0.08793
2006 11 14 54053 -0.0423 0.2851 0.08652
2006 11 15 54054 -0.0443 0.2864 0.08501
2006 11 16 54055 -0.0464 0.2876 0.08344
2006 11 17 54056 -0.0484 0.2889 0.08188
2006 11 18 54057 -0.0504 0.2902 0.08040
2006 11 19 54058 -0.0524 0.2916 0.07906
2006 11 20 54059 -0.0544 0.2930 0.07789
2006 11 21 54060 -0.0563 0.2944 0.07690
2006 11 22 54061 -0.0583 0.2958 0.07608
2006 11 23 54062 -0.0602 0.2973 0.07538
2006 11 24 54063 -0.0621 0.2988 0.07470
2006 11 25 54064 -0.0639 0.3003 0.07394
2006 11 26 54065 -0.0658 0.3018 0.07300
2006 11 27 54066 -0.0676 0.3034 0.07180
2006 11 28 54067 -0.0693 0.3050 0.07033
2006 11 29 54068 -0.0711 0.3066 0.06861
2006 11 30 54069 -0.0728 0.3082 0.06674
2006 12 1 54070 -0.0745 0.3099 0.06488
2006 12 2 54071 -0.0762 0.3116 0.06316
2006 12 3 54072 -0.0778 0.3133 0.06172
2006 12 4 54073 -0.0794 0.3150 0.06057
2006 12 5 54074 -0.0810 0.3167 0.05970
2006 12 6 54075 -0.0825 0.3185 0.05900
2006 12 7 54076 -0.0840 0.3203 0.05836
2006 12 8 54077 -0.0854 0.3221 0.05764
2006 12 9 54078 -0.0868 0.3240 0.05678
2006 12 10 54079 -0.0882 0.3259 0.05576
2006 12 11 54080 -0.0895 0.3278 0.05456
2006 12 12 54081 -0.0908 0.3297 0.05323
2006 12 13 54082 -0.0921 0.3316 0.05183
2006 12 14 54083 -0.0933 0.3336 0.05042
2006 12 15 54084 -0.0945 0.3356 0.04906
2006 12 16 54085 -0.0956 0.3375 0.04781
2006 12 17 54086 -0.0967 0.3396 0.04671
2006 12 18 54087 -0.0978 0.3416 0.04577
2006 12 19 54088 -0.0988 0.3437 0.04499
2006 12 20 54089 -0.0997 0.3457 0.04433
2006 12 21 54090 -0.1007 0.3478 0.04370
2006 12 22 54091 -0.1015 0.3499 0.04301
2006 12 23 54092 -0.1024 0.3520 0.04215
2006 12 24 54093 -0.1031 0.3542 0.04105
2006 12 25 54094 -0.1039 0.3563 0.03967
2006 12 26 54095 -0.1046 0.3585 0.03805
2006 12 27 54096 -0.1052 0.3607 0.03630
2006 12 28 54097 -0.1058 0.3629 0.03454
2006 12 29 54098 -0.1064 0.3651 0.03293
2006 12 30 54099 -0.1069 0.3673 0.03157
2006 12 31 54100 -0.1073 0.3695 0.03050
2007 1 1 54101 -0.1077 0.3718 0.02972
2007 1 2 54102 -0.1081 0.3740 0.02913
2007 1 3 54103 -0.1084 0.3763 0.02863
2007 1 4 54104 -0.1086 0.3786 0.02809
2007 1 5 54105 -0.1089 0.3809 0.02742
2007 1 6 54106 -0.1090 0.3832 0.02658
2007 1 7 54107 -0.1091 0.3855 0.02557
2007 1 8 54108 -0.1092 0.3878 0.02441
2007 1 9 54109 -0.1092 0.3901 0.02316
2007 1 10 54110 -0.1092 0.3924 0.02189
2007 1 11 54111 -0.1091 0.3947 0.02065
2007 1 12 54112 -0.1089 0.3971 0.01952
2007 1 13 54113 -0.1087 0.3994 0.01851
2007 1 14 54114 -0.1085 0.4018 0.01767
2007 1 15 54115 -0.1082 0.4041 0.01699
2007 1 16 54116 -0.1079 0.4064 0.01644
2007 1 17 54117 -0.1075 0.4088 0.01596
2007 1 18 54118 -0.1070 0.4111 0.01545
2007 1 19 54119 -0.1066 0.4135 0.01479
2007 1 20 54120 -0.1060 0.4158 0.01388
2007 1 21 54121 -0.1054 0.4182 0.01267
2007 1 22 54122 -0.1048 0.4205 0.01117
2007 1 23 54123 -0.1041 0.4229 0.00948
2007 1 24 54124 -0.1034 0.4252 0.00776
2007 1 25 54125 -0.1026 0.4275 0.00617
2007 1 26 54126 -0.1017 0.4298 0.00481
2007 1 27 54127 -0.1008 0.4322 0.00375
2007 1 28 54128 -0.1001 0.4345 0.00297
2007 1 29 54129 -0.0991 0.4368 0.00241
2007 1 30 54130 -0.0981 0.4391 0.00194
2007 1 31 54131 -0.0970 0.4413 0.00147
2007 2 1 54132 -0.0958 0.4436 0.00088
2007 2 2 54133 -0.0946 0.4459 0.00008
2007 2 3 54134 -0.0934 0.4481 -0.00092
2007 2 4 54135 -0.0921 0.4504 -0.00208
2007 2 5 54136 -0.0908 0.4526 -0.00337
2007 2 6 54137 -0.0894 0.4548 -0.00471
2007 2 7 54138 -0.0880 0.4570 -0.00604
2007 2 8 54139 -0.0866 0.4592 -0.00729
2007 2 9 54140 -0.0851 0.4614 -0.00841
2007 2 10 54141 -0.0835 0.4635 -0.00937
2007 2 11 54142 -0.0819 0.4656 -0.01017
2007 2 12 54143 -0.0803 0.4677 -0.01083
2007 2 13 54144 -0.0786 0.4698 -0.01140
2007 2 14 54145 -0.0769 0.4719 -0.01197
2007 2 15 54146 -0.0751 0.4740 -0.01265
2007 2 16 54147 -0.0733 0.4760 -0.01355
2007 2 17 54148 -0.0715 0.4780 -0.01477
2007 2 18 54149 -0.0696 0.4800 -0.01633
2007 2 19 54150 -0.0677 0.4819 -0.01815
2007 2 20 54151 -0.0657 0.4839 -0.02009
2007 2 21 54152 -0.0637 0.4858 -0.02197
2007 2 22 54153 -0.0617 0.4877 -0.02362
2007 2 23 54154 -0.0596 0.4895 -0.02496
2007 2 24 54155 -0.0575 0.4913 -0.02599
2007 2 25 54156 -0.0554 0.4931 -0.02678
2007 2 26 54157 -0.0532 0.4949 -0.02744
2007 2 27 54158 -0.0510 0.4967 -0.02809
2007 2 28 54159 -0.0487 0.4984 -0.02884
2007 3 1 54160 -0.0465 0.5000 -0.02975
2007 3 2 54161 -0.0441 0.5017 -0.03084
2007 3 3 54162 -0.0418 0.5033 -0.03212
2007 3 4 54163 -0.0394 0.5049 -0.03353
2007 3 5 54164 -0.0370 0.5064 -0.03503
2007 3 6 54165 -0.0346 0.5080 -0.03654
2007 3 7 54166 -0.0321 0.5094 -0.03798
2007 3 8 54167 -0.0296 0.5109 -0.03931
2007 3 9 54168 -0.0271 0.5123 -0.04048
2007 3 10 54169 -0.0246 0.5137 -0.04148
2007 3 11 54170 -0.0220 0.5150 -0.04234
2007 3 12 54171 -0.0194 0.5163 -0.04308
2007 3 13 54172 -0.0168 0.5176 -0.04379
2007 3 14 54173 -0.0141 0.5188 -0.04455
2007 3 15 54174 -0.0115 0.5200 -0.04549
2007 3 16 54175 -0.0088 0.5211 -0.04670
2007 3 17 54176 -0.0061 0.5222 -0.04826
2007 3 18 54177 -0.0033 0.5233 -0.05015
2007 3 19 54178 -0.0006 0.5243 -0.05224
2007 3 20 54179 0.0022 0.5253 -0.05438
2007 3 21 54180 0.0050 0.5262 -0.05635
2007 3 22 54181 0.0078 0.5271 -0.05802
2007 3 23 54182 0.0106 0.5280 -0.05935
2007 3 24 54183 0.0134 0.5288 -0.06038
2007 3 25 54184 0.0163 0.5295 -0.06122
2007 3 26 54185 0.0192 0.5303 -0.06201
2007 3 27 54186 0.0221 0.5309 -0.06286
2007 3 28 54187 0.0249 0.5316 -0.06386
2007 3 29 54188 0.0279 0.5322 -0.06503
2007 3 30 54189 0.0308 0.5327 -0.06637
2007 3 31 54190 0.0337 0.5332 -0.06785
2007 4 1 54191 0.0366 0.5336 -0.06942
2007 4 2 54192 0.0396 0.5341 -0.07102
2007 4 3 54193 0.0425 0.5344 -0.07256
2007 4 4 54194 0.0455 0.5347 -0.07400
2007 4 5 54195 0.0485 0.5350 -0.07528
2007 4 6 54196 0.0514 0.5352 -0.07639
2007 4 7 54197 0.0544 0.5354 -0.07734
2007 4 8 54198 0.0574 0.5355 -0.07816
2007 4 9 54199 0.0604 0.5356 -0.07892
2007 4 10 54200 0.0634 0.5356 -0.07970
2007 4 11 54201 0.0664 0.5356 -0.08061
2007 4 12 54202 0.0694 0.5355 -0.08175
2007 4 13 54203 0.0724 0.5354 -0.08320
2007 4 14 54204 0.0754 0.5353 -0.08500
2007 4 15 54205 0.0783 0.5351 -0.08710
2007 4 16 54206 0.0813 0.5348 -0.08935
2007 4 17 54207 0.0843 0.5345 -0.09158
2007 4 18 54208 0.0873 0.5342 -0.09362
2007 4 19 54209 0.0903 0.5338 -0.09536
2007 4 20 54210 0.0933 0.5333 -0.09681
2007 4 21 54211 0.0963 0.5328 -0.09806
2007 4 22 54212 0.0992 0.5323 -0.09923
2007 4 23 54213 0.1022 0.5317 -0.10045
2007 4 24 54214 0.1051 0.5311 -0.10179
2007 4 25 54215 0.1081 0.5304 -0.10328
2007 4 26 54216 0.1110 0.5297 -0.10490
2007 4 27 54217 0.1140 0.5289 -0.10661
2007 4 28 54218 0.1169 0.5281 -0.10836
2007 4 29 54219 0.1198 0.5272 -0.11007
2007 4 30 54220 0.1228 0.5263 -0.11168
2007 5 1 54221 0.1257 0.5254 -0.11311
2007 5 2 54222 0.1286 0.5244 -0.11430
2007 5 3 54223 0.1315 0.5233 -0.11521
2007 5 4 54224 0.1343 0.5223 -0.11585
2007 5 5 54225 0.1372 0.5211 -0.11625
2007 5 6 54226 0.1400 0.5200 -0.11647
2007 5 7 54227 0.1429 0.5187 -0.11660
2007 5 8 54228 0.1457 0.5175 -0.11676
2007 5 9 54229 0.1485 0.5162 -0.11704
2007 5 10 54230 0.1513 0.5148 -0.11754
2007 5 11 54231 0.1540 0.5134 -0.11832
2007 5 12 54232 0.1568 0.5120 -0.11936
2007 5 13 54233 0.1595 0.5105 -0.12058
2007 5 14 54234 0.1622 0.5090 -0.12183
2007 5 15 54235 0.1649 0.5074 -0.12295
2007 5 16 54236 0.1676 0.5058 -0.12380
2007 5 17 54237 0.1702 0.5042 -0.12433
2007 5 18 54238 0.1728 0.5025 -0.12459
2007 5 19 54239 0.1754 0.5007 -0.12471
2007 5 20 54240 0.1780 0.4990 -0.12480
2007 5 21 54241 0.1806 0.4972 -0.12499
2007 5 22 54242 0.1831 0.4953 -0.12529
2007 5 23 54243 0.1856 0.4934 -0.12572
2007 5 24 54244 0.1881 0.4915 -0.12627
2007 5 25 54245 0.1906 0.4895 -0.12687
2007 5 26 54246 0.1930 0.4875 -0.12744
2007 5 27 54247 0.1955 0.4855 -0.12793
2007 5 28 54248 0.1979 0.4834 -0.12829
2007 5 29 54249 0.2002 0.4813 -0.12844
2007 5 30 54250 0.2026 0.4791 -0.12837
2007 5 31 54251 0.2049 0.4770 -0.12808
2007 6 1 54252 0.2071 0.4747 -0.12757
2007 6 2 54253 0.2094 0.4725 -0.12685
2007 6 3 54254 0.2116 0.4702 -0.12612
2007 6 4 54255 0.2138 0.4679 -0.12543
2007 6 5 54256 0.2160 0.4655 -0.12489
2007 6 6 54257 0.2181 0.4632 -0.12455
2007 6 7 54258 0.2202 0.4607 -0.12445
2007 6 8 54259 0.2223 0.4583 -0.12457
2007 6 9 54260 0.2243 0.4558 -0.12491
2007 6 10 54261 0.2263 0.4533 -0.12542
2007 6 11 54262 0.2283 0.4508 -0.12592
2007 6 12 54263 0.2303 0.4482 -0.12626
2007 6 13 54264 0.2322 0.4456 -0.12639
2007 6 14 54265 0.2341 0.4430 -0.12628
2007 6 15 54266 0.2359 0.4404 -0.12600
2007 6 16 54267 0.2377 0.4377 -0.12561
2007 6 17 54268 0.2395 0.4350 -0.12526
2007 6 18 54269 0.2412 0.4323 -0.12509
2007 6 19 54270 0.2429 0.4296 -0.12502
2007 6 20 54271 0.2446 0.4268 -0.12508
2007 6 21 54272 0.2462 0.4240 -0.12520
2007 6 22 54273 0.2478 0.4212 -0.12530
2007 6 23 54274 0.2494 0.4184 -0.12536
2007 6 24 54275 0.2509 0.4155 -0.12532
2007 6 25 54276 0.2523 0.4127 -0.12513
2007 6 26 54277 0.2538 0.4098 -0.12480
2007 6 27 54278 0.2552 0.4069 -0.12433
2007 6 28 54279 0.2565 0.4039 -0.12372
2007 6 29 54280 0.2579 0.4010 -0.12294
2007 6 30 54281 0.2591 0.3980 -0.12208
2007 7 1 54282 0.2604 0.3950 -0.12121
2007 7 2 54283 0.2616 0.3921 -0.12044
2007 7 3 54284 0.2627 0.3890 -0.11993
2007 7 4 54285 0.2638 0.3860 -0.11976
2007 7 5 54286 0.2649 0.3830 -0.11992
2007 7 6 54287 0.2659 0.3799 -0.12026
2007 7 7 54288 0.2669 0.3769 -0.12067
2007 7 8 54289 0.2679 0.3738 -0.12103
2007 7 9 54290 0.2688 0.3707 -0.12118
2007 7 10 54291 0.2696 0.3676 -0.12105
2007 7 11 54292 0.2704 0.3645 -0.12065
2007 7 12 54293 0.2712 0.3614 -0.12004
2007 7 13 54294 0.2719 0.3583 -0.11931
2007 7 14 54295 0.2726 0.3551 -0.11862
2007 7 15 54296 0.2732 0.3520 -0.11799
2007 7 16 54297 0.2738 0.3489 -0.11752
2007 7 17 54298 0.2743 0.3457 -0.11727
2007 7 18 54299 0.2748 0.3426 -0.11714
2007 7 19 54300 0.2752 0.3394 -0.11713
2007 7 20 54301 0.2756 0.3362 -0.11716
2007 7 21 54302 0.2759 0.3331 -0.11718
2007 7 22 54303 0.2762 0.3299 -0.11707
2007 7 23 54304 0.2764 0.3267 -0.11671
2007 7 24 54305 0.2766 0.3236 -0.11608
2007 7 25 54306 0.2768 0.3204 -0.11520
2007 7 26 54307 0.2769 0.3172 -0.11413
2007 7 27 54308 0.2769 0.3141 -0.11294
2007 7 28 54309 0.2769 0.3109 -0.11170
2007 7 29 54310 0.2768 0.3077 -0.11054
2007 7 30 54311 0.2767 0.3046 -0.10962
2007 7 31 54312 0.2766 0.3014 -0.10891
2007 8 1 54313 0.2763 0.2982 -0.10849
2007 8 2 54314 0.2761 0.2951 -0.10835
2007 8 3 54315 0.2757 0.2920 -0.10837
2007 8 4 54316 0.2754 0.2888 -0.10831
2007 8 5 54317 0.2749 0.2857 -0.10807
2007 8 6 54318 0.2745 0.2826 -0.10759
2007 8 7 54319 0.2739 0.2795 -0.10684
2007 8 8 54320 0.2733 0.2764 -0.10589
2007 8 9 54321 0.2727 0.2733 -0.10481
2007 8 10 54322 0.2720 0.2702 -0.10373
2007 8 11 54323 0.2712 0.2671 -0.10273
2007 8 12 54324 0.2704 0.2640 -0.10189
2007 8 13 54325 0.2696 0.2610 -0.10124
2007 8 14 54326 0.2687 0.2580 -0.10081
2007 8 15 54327 0.2677 0.2549 -0.10056
2007 8 16 54328 0.2667 0.2519 -0.10041
2007 8 17 54329 0.2656 0.2489 -0.10027
2007 8 18 54330 0.2645 0.2460 -0.10004
2007 8 19 54331 0.2633 0.2430 -0.09967
2007 8 20 54332 0.2620 0.2401 -0.09924
2007 8 21 54333 0.2607 0.2371 -0.09864
2007 8 22 54334 0.2594 0.2342 -0.09796
2007 8 23 54335 0.2580 0.2313 -0.09721
2007 8 24 54336 0.2565 0.2285 -0.09646
2007 8 25 54337 0.2550 0.2256 -0.09583
2007 8 26 54338 0.2534 0.2228 -0.09541
2007 8 27 54339 0.2518 0.2200 -0.09526
2007 8 28 54340 0.2501 0.2172 -0.09543
2007 8 29 54341 0.2483 0.2144 -0.09584
2007 8 30 54342 0.2465 0.2117 -0.09644
2007 8 31 54343 0.2447 0.2090 -0.09706
2007 9 1 54344 0.2428 0.2063 -0.09754
2007 9 2 54345 0.2408 0.2037 -0.09774
2007 9 3 54346 0.2388 0.2010 -0.09757
2007 9 4 54347 0.2367 0.1984 -0.09714
2007 9 5 54348 0.2346 0.1958 -0.09653
2007 9 6 54349 0.2324 0.1933 -0.09580
2007 9 7 54350 0.2302 0.1908 -0.09510
2007 9 8 54351 0.2279 0.1883 -0.09457
2007 9 9 54352 0.2256 0.1858 -0.09425
2007 9 10 54353 0.2232 0.1834 -0.09411
2007 9 11 54354 0.2207 0.1810 -0.09416
2007 9 12 54355 0.2182 0.1786 -0.09428
2007 9 13 54356 0.2157 0.1763 -0.09448
2007 9 14 54357 0.2131 0.1740 -0.09472
2007 9 15 54358 0.2104 0.1717 -0.09483
2007 9 16 54359 0.2077 0.1695 -0.09476
2007 9 17 54360 0.2050 0.1673 -0.09451
2007 9 18 54361 0.2022 0.1651 -0.09413
2007 9 19 54362 0.1993 0.1630 -0.09371
2007 9 20 54363 0.1964 0.1609 -0.09330
2007 9 21 54364 0.1935 0.1588 -0.09297
2007 9 22 54365 0.1905 0.1568 -0.09281
2007 9 23 54366 0.1874 0.1549 -0.09289
2007 9 24 54367 0.1843 0.1529 -0.09331
2007 9 25 54368 0.1812 0.1510 -0.09409
2007 9 26 54369 0.1780 0.1492 -0.09516
2007 9 27 54370 0.1748 0.1474 -0.09633
2007 9 28 54371 0.1715 0.1456 -0.09740
2007 9 29 54372 0.1682 0.1439 -0.09816
2007 9 30 54373 0.1648 0.1422 -0.09867
2007 10 1 54374 0.1614 0.1406 -0.09888
2007 10 2 54375 0.1580 0.1390 -0.09885
2007 10 3 54376 0.1545 0.1374 -0.09877
2007 10 4 54377 0.1510 0.1359 -0.09876
2007 10 5 54378 0.1474 0.1344 -0.09889
2007 10 6 54379 0.1438 0.1330 -0.09924
2007 10 7 54380 0.1402 0.1317 -0.09976
2007 10 8 54381 0.1365 0.1304 -0.10040
2007 10 9 54382 0.1328 0.1291 -0.10099
2007 10 10 54383 0.1291 0.1279 -0.10160
2007 10 11 54384 0.1253 0.1267 -0.10213
2007 10 12 54385 0.1215 0.1256 -0.10258
2007 10 13 54386 0.1176 0.1245 -0.10284
2007 10 14 54387 0.1138 0.1235 -0.10303
2007 10 15 54388 0.1099 0.1225 -0.10305
2007 10 16 54389 0.1059 0.1216 -0.10296
2007 10 17 54390 0.1020 0.1207 -0.10283
2007 10 18 54391 0.0980 0.1199 -0.10272
2007 10 19 54392 0.0940 0.1191 -0.10268
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)
54008 -65.75 .21 -5.63 .34
54009 -65.52 .21 -5.49 .34
54010 -65.21 .21 -5.33 .34
54011 -64.93 .22 -5.20 .34
54012 -64.80 .17 -5.03 .34
54013 -64.94 .17 -4.76 .34
54014 -65.29 .17 -4.54 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54008 -0.031 0.084 -0.014 0.340
54009 -0.020 0.084 -0.018 0.340
54010 -0.007 0.084 -0.028 0.340
54011 0.003 0.088 -0.016 0.340
54012 -0.002 0.068 -0.010 0.340
54013 -0.020 0.068 -0.014 0.340
54014 -0.037 0.068 0.002 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
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Important Notice - IAU 2000 Resolution Compliancy Information
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Resolutions passed at the 24th General Assembly of the International
Astronomical Union (IAU) recommend the implementation of a number of new
procedures concerning the transformation between the celestial and
terrestrial reference systems. Information regarding these procedures
is available in Chapter 5 of the IERS Conventions 2003 available at
.
With these resolutions, beginning on 1 January 2003, IERS Bulletins A and
B will publish new products in addition to those already published. These
products will include the celestial pole offsets X_obs-X_IAU2000A
and Y_obs-Y_IAU2000A where
X_obs and Y_obs are the observed X, Y coordinates of the Celestial
Intermediate Pole in the Geocentric Celestial Reference System, and
X_IAU2000A and Y_IAU2000A are the celestial pole coordinates provided by
using the IAU2000A Precession-Nutation theory.
It is expected that Celestial Pole offsets related to the IAU1980 Nutation
Theory will continue to be published through 15 January 2006. The new
celestial pole offsets related to the new IAU2000A Precession-Nutation
theory will be produced in a separate data file as well as appended to
to this file.
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Important Notice - IAU 2000 Resolution Compliancy Information
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