**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
16 November 2006 Vol. XIX No. 046
______________________________________________________________________
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. *
**********************************************************************
**********************************************************************
* As of Bulletin A Vol. XIX, No. 46, on 16 November 2006 we have *
* adopted the new 2006c series for the USNO VLBI data. The net *
* effect appears to be less than 0.1 mas in polar motion and *
* 5 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
6 11 10 54049 -.01233 .00004 .28299 .00003 .094483 .000014
6 11 11 54050 -.01379 .00003 .28374 .00002 .093755 .000015
6 11 12 54051 -.01480 .00003 .28453 .00002 .092811 .000015
6 11 13 54052 -.01571 .00002 .28547 .00002 .091750 .000016
6 11 14 54053 -.01678 .00002 .28647 .00002 .090589 .000015
6 11 15 54054 -.01770 .00002 .28728 .00002 .089374 .000016
6 11 16 54055 -.01851 .00001 .28800 .00002 .088062 .000018
_______________________________________________________________________
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 = .0764 + .0498 cos A - .1251 sin A - .1484 cos C + .0444 sin C
y = .3478 - .1057 cos A - .0441 sin A + .0444 cos C + .1484 sin C
UT1-UTC = .0551 - .00081 (MJD - 54060) - (UT2-UT1)
where A = 2*pi*(MJD-54055)/365.25 and C = 2*pi*(MJD-54055)/435.
TAI-UTC(MJD 54056) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54055)**0.80 S t = 0.00025 (MJD-54055)**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 11 17 54056 -0.0195 0.2888 0.08667
2006 11 18 54057 -0.0206 0.2897 0.08534
2006 11 19 54058 -0.0218 0.2907 0.08413
2006 11 20 54059 -0.0231 0.2918 0.08306
2006 11 21 54060 -0.0244 0.2930 0.08214
2006 11 22 54061 -0.0258 0.2943 0.08140
2006 11 23 54062 -0.0272 0.2956 0.08081
2006 11 24 54063 -0.0286 0.2969 0.08028
2006 11 25 54064 -0.0301 0.2983 0.07971
2006 11 26 54065 -0.0316 0.2998 0.07895
2006 11 27 54066 -0.0332 0.3013 0.07794
2006 11 28 54067 -0.0347 0.3028 0.07663
2006 11 29 54068 -0.0363 0.3044 0.07507
2006 11 30 54069 -0.0378 0.3059 0.07335
2006 12 1 54070 -0.0394 0.3076 0.07162
2006 12 2 54071 -0.0410 0.3092 0.07006
2006 12 3 54072 -0.0425 0.3109 0.06876
2006 12 4 54073 -0.0440 0.3126 0.06775
2006 12 5 54074 -0.0456 0.3143 0.06701
2006 12 6 54075 -0.0471 0.3160 0.06641
2006 12 7 54076 -0.0486 0.3177 0.06586
2006 12 8 54077 -0.0501 0.3195 0.06525
2006 12 9 54078 -0.0515 0.3213 0.06449
2006 12 10 54079 -0.0530 0.3231 0.06356
2006 12 11 54080 -0.0544 0.3249 0.06246
2006 12 12 54081 -0.0557 0.3267 0.06121
2006 12 13 54082 -0.0571 0.3285 0.05987
2006 12 14 54083 -0.0584 0.3304 0.05850
2006 12 15 54084 -0.0597 0.3322 0.05717
2006 12 16 54085 -0.0610 0.3341 0.05596
2006 12 17 54086 -0.0622 0.3360 0.05490
2006 12 18 54087 -0.0634 0.3379 0.05401
2006 12 19 54088 -0.0645 0.3398 0.05330
2006 12 20 54089 -0.0656 0.3417 0.05272
2006 12 21 54090 -0.0667 0.3437 0.05220
2006 12 22 54091 -0.0677 0.3456 0.05163
2006 12 23 54092 -0.0687 0.3475 0.05090
2006 12 24 54093 -0.0697 0.3495 0.04993
2006 12 25 54094 -0.0706 0.3515 0.04868
2006 12 26 54095 -0.0715 0.3535 0.04719
2006 12 27 54096 -0.0723 0.3555 0.04555
2006 12 28 54097 -0.0731 0.3575 0.04389
2006 12 29 54098 -0.0739 0.3595 0.04237
2006 12 30 54099 -0.0746 0.3615 0.04109
2006 12 31 54100 -0.0752 0.3635 0.04009
2007 1 1 54101 -0.0759 0.3655 0.03937
2007 1 2 54102 -0.0764 0.3676 0.03884
2007 1 3 54103 -0.0770 0.3696 0.03838
2007 1 4 54104 -0.0775 0.3717 0.03789
2007 1 5 54105 -0.0779 0.3737 0.03727
2007 1 6 54106 -0.0783 0.3758 0.03646
2007 1 7 54107 -0.0786 0.3779 0.03548
2007 1 8 54108 -0.0789 0.3800 0.03436
2007 1 9 54109 -0.0792 0.3820 0.03314
2007 1 10 54110 -0.0794 0.3841 0.03189
2007 1 11 54111 -0.0796 0.3862 0.03068
2007 1 12 54112 -0.0797 0.3883 0.02957
2007 1 13 54113 -0.0798 0.3904 0.02860
2007 1 14 54114 -0.0798 0.3925 0.02778
2007 1 15 54115 -0.0797 0.3946 0.02713
2007 1 16 54116 -0.0797 0.3967 0.02661
2007 1 17 54117 -0.0796 0.3988 0.02616
2007 1 18 54118 -0.0794 0.4009 0.02568
2007 1 19 54119 -0.0792 0.4030 0.02504
2007 1 20 54120 -0.0789 0.4052 0.02415
2007 1 21 54121 -0.0786 0.4073 0.02295
2007 1 22 54122 -0.0782 0.4093 0.02145
2007 1 23 54123 -0.0778 0.4114 0.01975
2007 1 24 54124 -0.0774 0.4135 0.01800
2007 1 25 54125 -0.0769 0.4156 0.01635
2007 1 26 54126 -0.0763 0.4177 0.01493
2007 1 27 54127 -0.0758 0.4198 0.01380
2007 1 28 54128 -0.0751 0.4218 0.01293
2007 1 29 54129 -0.0744 0.4239 0.01225
2007 1 30 54130 -0.0737 0.4259 0.01165
2007 1 31 54131 -0.0729 0.4280 0.01102
2007 2 1 54132 -0.0721 0.4300 0.01026
2007 2 2 54133 -0.0712 0.4321 0.00931
2007 2 3 54134 -0.0703 0.4341 0.00817
2007 2 4 54135 -0.0694 0.4361 0.00685
2007 2 5 54136 -0.0683 0.4381 0.00541
2007 2 6 54137 -0.0673 0.4401 0.00392
2007 2 7 54138 -0.0662 0.4421 0.00246
2007 2 8 54139 -0.0651 0.4441 0.00107
2007 2 9 54140 -0.0639 0.4460 -0.00017
2007 2 10 54141 -0.0627 0.4480 -0.00125
2007 2 11 54142 -0.0614 0.4499 -0.00216
2007 2 12 54143 -0.0601 0.4518 -0.00291
2007 2 13 54144 -0.0587 0.4537 -0.00358
2007 2 14 54145 -0.0575 0.4556 -0.00424
2007 2 15 54146 -0.0560 0.4575 -0.00501
2007 2 16 54147 -0.0545 0.4594 -0.00600
2007 2 17 54148 -0.0530 0.4612 -0.00732
2007 2 18 54149 -0.0515 0.4630 -0.00897
2007 2 19 54150 -0.0499 0.4648 -0.01089
2007 2 20 54151 -0.0482 0.4666 -0.01293
2007 2 21 54152 -0.0465 0.4683 -0.01491
2007 2 22 54153 -0.0448 0.4701 -0.01668
2007 2 23 54154 -0.0431 0.4718 -0.01814
2007 2 24 54155 -0.0413 0.4735 -0.01929
2007 2 25 54156 -0.0395 0.4751 -0.02021
2007 2 26 54157 -0.0376 0.4768 -0.02101
2007 2 27 54158 -0.0357 0.4784 -0.02181
2007 2 28 54159 -0.0338 0.4800 -0.02270
2007 3 1 54160 -0.0318 0.4816 -0.02376
2007 3 2 54161 -0.0298 0.4831 -0.02498
2007 3 3 54162 -0.0278 0.4846 -0.02639
2007 3 4 54163 -0.0257 0.4861 -0.02794
2007 3 5 54164 -0.0236 0.4876 -0.02957
2007 3 6 54165 -0.0215 0.4890 -0.03121
2007 3 7 54166 -0.0194 0.4904 -0.03280
2007 3 8 54167 -0.0172 0.4918 -0.03426
2007 3 9 54168 -0.0150 0.4931 -0.03557
2007 3 10 54169 -0.0128 0.4944 -0.03672
2007 3 11 54170 -0.0105 0.4957 -0.03772
2007 3 12 54171 -0.0082 0.4970 -0.03860
2007 3 13 54172 -0.0059 0.4982 -0.03945
2007 3 14 54173 -0.0036 0.4994 -0.04035
2007 3 15 54174 -0.0012 0.5005 -0.04143
2007 3 16 54175 0.0012 0.5016 -0.04280
2007 3 17 54176 0.0036 0.5027 -0.04450
2007 3 18 54177 0.0060 0.5037 -0.04653
2007 3 19 54178 0.0084 0.5047 -0.04877
2007 3 20 54179 0.0109 0.5057 -0.05105
2007 3 21 54180 0.0134 0.5067 -0.05317
2007 3 22 54181 0.0159 0.5076 -0.05498
2007 3 23 54182 0.0184 0.5084 -0.05645
2007 3 24 54183 0.0210 0.5092 -0.05762
2007 3 25 54184 0.0235 0.5100 -0.05860
2007 3 26 54185 0.0261 0.5108 -0.05953
2007 3 27 54186 0.0287 0.5115 -0.06052
2007 3 28 54187 0.0313 0.5121 -0.06165
2007 3 29 54188 0.0339 0.5128 -0.06296
2007 3 30 54189 0.0365 0.5134 -0.06443
2007 3 31 54190 0.0391 0.5139 -0.06604
2007 4 1 54191 0.0418 0.5144 -0.06773
2007 4 2 54192 0.0444 0.5149 -0.06944
2007 4 3 54193 0.0471 0.5153 -0.07110
2007 4 4 54194 0.0498 0.5157 -0.07265
2007 4 5 54195 0.0524 0.5160 -0.07404
2007 4 6 54196 0.0551 0.5163 -0.07525
2007 4 7 54197 0.0578 0.5166 -0.07629
2007 4 8 54198 0.0605 0.5168 -0.07720
2007 4 9 54199 0.0632 0.5170 -0.07804
2007 4 10 54200 0.0659 0.5171 -0.07888
2007 4 11 54201 0.0686 0.5172 -0.07983
2007 4 12 54202 0.0713 0.5172 -0.08100
2007 4 13 54203 0.0740 0.5172 -0.08245
2007 4 14 54204 0.0768 0.5171 -0.08423
2007 4 15 54205 0.0795 0.5170 -0.08626
2007 4 16 54206 0.0822 0.5169 -0.08842
2007 4 17 54207 0.0849 0.5167 -0.09051
2007 4 18 54208 0.0876 0.5165 -0.09236
2007 4 19 54209 0.0903 0.5162 -0.09386
2007 4 20 54210 0.0930 0.5159 -0.09502
2007 4 21 54211 0.0957 0.5155 -0.09591
2007 4 22 54212 0.0984 0.5151 -0.09668
2007 4 23 54213 0.1011 0.5147 -0.09747
2007 4 24 54214 0.1037 0.5142 -0.09836
2007 4 25 54215 0.1064 0.5137 -0.09941
2007 4 26 54216 0.1091 0.5131 -0.10061
2007 4 27 54217 0.1117 0.5124 -0.10194
2007 4 28 54218 0.1144 0.5118 -0.10335
2007 4 29 54219 0.1170 0.5111 -0.10478
2007 4 30 54220 0.1196 0.5103 -0.10617
2007 5 1 54221 0.1222 0.5095 -0.10744
2007 5 2 54222 0.1248 0.5086 -0.10856
2007 5 3 54223 0.1274 0.5077 -0.10950
2007 5 4 54224 0.1300 0.5068 -0.11026
2007 5 5 54225 0.1326 0.5058 -0.11086
2007 5 6 54226 0.1351 0.5048 -0.11138
2007 5 7 54227 0.1376 0.5037 -0.11188
2007 5 8 54228 0.1401 0.5026 -0.11246
2007 5 9 54229 0.1426 0.5015 -0.11322
2007 5 10 54230 0.1451 0.5003 -0.11422
2007 5 11 54231 0.1476 0.4990 -0.11553
2007 5 12 54232 0.1500 0.4978 -0.11712
2007 5 13 54233 0.1525 0.4964 -0.11890
2007 5 14 54234 0.1549 0.4951 -0.12074
2007 5 15 54235 0.1573 0.4937 -0.12247
2007 5 16 54236 0.1596 0.4922 -0.12396
2007 5 17 54237 0.1620 0.4907 -0.12516
2007 5 18 54238 0.1643 0.4892 -0.12613
2007 5 19 54239 0.1666 0.4877 -0.12698
2007 5 20 54240 0.1689 0.4861 -0.12784
2007 5 21 54241 0.1712 0.4844 -0.12882
2007 5 22 54242 0.1734 0.4827 -0.12996
2007 5 23 54243 0.1756 0.4810 -0.13125
2007 5 24 54244 0.1778 0.4793 -0.13261
2007 5 25 54245 0.1800 0.4775 -0.13396
2007 5 26 54246 0.1823 0.4756 -0.13525
2007 5 27 54247 0.1845 0.4737 -0.13639
2007 5 28 54248 0.1867 0.4718 -0.13737
2007 5 29 54249 0.1888 0.4699 -0.13815
2007 5 30 54250 0.1910 0.4679 -0.13874
2007 5 31 54251 0.1931 0.4659 -0.13914
2007 6 1 54252 0.1952 0.4638 -0.13939
2007 6 2 54253 0.1972 0.4617 -0.13955
2007 6 3 54254 0.1993 0.4596 -0.13969
2007 6 4 54255 0.2013 0.4575 -0.13989
2007 6 5 54256 0.2032 0.4553 -0.14023
2007 6 6 54257 0.2052 0.4531 -0.14077
2007 6 7 54258 0.2071 0.4508 -0.14155
2007 6 8 54259 0.2090 0.4485 -0.14254
2007 6 9 54260 0.2108 0.4462 -0.14367
2007 6 10 54261 0.2127 0.4439 -0.14481
2007 6 11 54262 0.2145 0.4415 -0.14583
2007 6 12 54263 0.2162 0.4391 -0.14661
2007 6 13 54264 0.2179 0.4367 -0.14706
2007 6 14 54265 0.2196 0.4343 -0.14718
2007 6 15 54266 0.2213 0.4318 -0.14705
2007 6 16 54267 0.2229 0.4293 -0.14680
2007 6 17 54268 0.2245 0.4268 -0.14656
2007 6 18 54269 0.2261 0.4243 -0.14640
2007 6 19 54270 0.2276 0.4217 -0.14635
2007 6 20 54271 0.2291 0.4191 -0.14641
2007 6 21 54272 0.2306 0.4165 -0.14655
2007 6 22 54273 0.2320 0.4139 -0.14669
2007 6 23 54274 0.2334 0.4112 -0.14677
2007 6 24 54275 0.2348 0.4085 -0.14676
2007 6 25 54276 0.2361 0.4058 -0.14660
2007 6 26 54277 0.2374 0.4031 -0.14627
2007 6 27 54278 0.2386 0.4004 -0.14569
2007 6 28 54279 0.2398 0.3977 -0.14489
2007 6 29 54280 0.2410 0.3949 -0.14393
2007 6 30 54281 0.2421 0.3921 -0.14293
2007 7 1 54282 0.2432 0.3893 -0.14198
2007 7 2 54283 0.2443 0.3865 -0.14114
2007 7 3 54284 0.2453 0.3837 -0.14054
2007 7 4 54285 0.2463 0.3809 -0.14023
2007 7 5 54286 0.2473 0.3780 -0.14024
2007 7 6 54287 0.2482 0.3752 -0.14039
2007 7 7 54288 0.2490 0.3723 -0.14055
2007 7 8 54289 0.2499 0.3694 -0.14070
2007 7 9 54290 0.2507 0.3665 -0.14067
2007 7 10 54291 0.2514 0.3636 -0.14038
2007 7 11 54292 0.2521 0.3607 -0.13982
2007 7 12 54293 0.2528 0.3578 -0.13910
2007 7 13 54294 0.2534 0.3549 -0.13829
2007 7 14 54295 0.2540 0.3520 -0.13756
2007 7 15 54296 0.2545 0.3490 -0.13698
2007 7 16 54297 0.2551 0.3461 -0.13658
2007 7 17 54298 0.2555 0.3432 -0.13632
2007 7 18 54299 0.2559 0.3402 -0.13617
2007 7 19 54300 0.2563 0.3373 -0.13610
2007 7 20 54301 0.2567 0.3343 -0.13602
2007 7 21 54302 0.2570 0.3314 -0.13580
2007 7 22 54303 0.2572 0.3285 -0.13544
2007 7 23 54304 0.2574 0.3255 -0.13489
2007 7 24 54305 0.2576 0.3226 -0.13411
2007 7 25 54306 0.2577 0.3196 -0.13314
2007 7 26 54307 0.2578 0.3167 -0.13201
2007 7 27 54308 0.2578 0.3137 -0.13078
2007 7 28 54309 0.2578 0.3108 -0.12947
2007 7 29 54310 0.2578 0.3079 -0.12830
2007 7 30 54311 0.2577 0.3050 -0.12737
2007 7 31 54312 0.2575 0.3020 -0.12671
2007 8 1 54313 0.2573 0.2991 -0.12634
2007 8 2 54314 0.2571 0.2962 -0.12619
2007 8 3 54315 0.2568 0.2933 -0.12613
2007 8 4 54316 0.2565 0.2904 -0.12610
2007 8 5 54317 0.2561 0.2876 -0.12600
2007 8 6 54318 0.2557 0.2847 -0.12573
2007 8 7 54319 0.2553 0.2818 -0.12525
2007 8 8 54320 0.2547 0.2790 -0.12464
2007 8 9 54321 0.2542 0.2762 -0.12398
2007 8 10 54322 0.2536 0.2733 -0.12337
2007 8 11 54323 0.2530 0.2705 -0.12286
2007 8 12 54324 0.2523 0.2677 -0.12253
2007 8 13 54325 0.2515 0.2650 -0.12245
2007 8 14 54326 0.2507 0.2622 -0.12249
2007 8 15 54327 0.2499 0.2595 -0.12262
2007 8 16 54328 0.2490 0.2567 -0.12276
2007 8 17 54329 0.2481 0.2540 -0.12281
2007 8 18 54330 0.2471 0.2513 -0.12276
2007 8 19 54331 0.2461 0.2486 -0.12255
2007 8 20 54332 0.2450 0.2460 -0.12218
2007 8 21 54333 0.2439 0.2433 -0.12169
2007 8 22 54334 0.2428 0.2407 -0.12112
2007 8 23 54335 0.2416 0.2381 -0.12051
2007 8 24 54336 0.2403 0.2355 -0.11985
2007 8 25 54337 0.2390 0.2330 -0.11927
2007 8 26 54338 0.2377 0.2304 -0.11883
2007 8 27 54339 0.2363 0.2279 -0.11865
2007 8 28 54340 0.2348 0.2254 -0.11885
2007 8 29 54341 0.2333 0.2230 -0.11942
2007 8 30 54342 0.2318 0.2205 -0.12025
2007 8 31 54343 0.2302 0.2181 -0.12111
2007 9 1 54344 0.2286 0.2157 -0.12185
2007 9 2 54345 0.2269 0.2134 -0.12235
2007 9 3 54346 0.2251 0.2110 -0.12253
2007 9 4 54347 0.2234 0.2087 -0.12245
2007 9 5 54348 0.2216 0.2064 -0.12221
2007 9 6 54349 0.2197 0.2042 -0.12198
2007 9 7 54350 0.2178 0.2020 -0.12183
2007 9 8 54351 0.2158 0.1998 -0.12188
2007 9 9 54352 0.2138 0.1976 -0.12208
2007 9 10 54353 0.2118 0.1955 -0.12246
2007 9 11 54354 0.2097 0.1934 -0.12300
2007 9 12 54355 0.2075 0.1913 -0.12361
2007 9 13 54356 0.2053 0.1893 -0.12424
2007 9 14 54357 0.2031 0.1873 -0.12486
2007 9 15 54358 0.2008 0.1853 -0.12539
2007 9 16 54359 0.1985 0.1833 -0.12577
2007 9 17 54360 0.1961 0.1814 -0.12589
2007 9 18 54361 0.1937 0.1796 -0.12579
2007 9 19 54362 0.1913 0.1777 -0.12550
2007 9 20 54363 0.1888 0.1759 -0.12512
2007 9 21 54364 0.1862 0.1742 -0.12475
2007 9 22 54365 0.1837 0.1724 -0.12447
2007 9 23 54366 0.1810 0.1707 -0.12438
2007 9 24 54367 0.1784 0.1691 -0.12464
2007 9 25 54368 0.1757 0.1675 -0.12515
2007 9 26 54369 0.1729 0.1659 -0.12590
2007 9 27 54370 0.1701 0.1643 -0.12683
2007 9 28 54371 0.1673 0.1628 -0.12776
2007 9 29 54372 0.1644 0.1614 -0.12841
2007 9 30 54373 0.1615 0.1600 -0.12876
2007 10 1 54374 0.1586 0.1586 -0.12882
2007 10 2 54375 0.1556 0.1572 -0.12867
2007 10 3 54376 0.1526 0.1559 -0.12848
2007 10 4 54377 0.1495 0.1547 -0.12833
2007 10 5 54378 0.1465 0.1535 -0.12834
2007 10 6 54379 0.1433 0.1523 -0.12851
2007 10 7 54380 0.1402 0.1511 -0.12885
2007 10 8 54381 0.1370 0.1500 -0.12930
2007 10 9 54382 0.1338 0.1490 -0.12988
2007 10 10 54383 0.1305 0.1480 -0.13053
2007 10 11 54384 0.1272 0.1470 -0.13118
2007 10 12 54385 0.1239 0.1461 -0.13175
2007 10 13 54386 0.1206 0.1452 -0.13216
2007 10 14 54387 0.1172 0.1444 -0.13241
2007 10 15 54388 0.1138 0.1436 -0.13260
2007 10 16 54389 0.1103 0.1429 -0.13267
2007 10 17 54390 0.1069 0.1422 -0.13272
2007 10 18 54391 0.1034 0.1416 -0.13281
2007 10 19 54392 0.0999 0.1410 -0.13300
2007 10 20 54393 0.0963 0.1404 -0.13340
2007 10 21 54394 0.0928 0.1399 -0.13407
2007 10 22 54395 0.0892 0.1394 -0.13504
2007 10 23 54396 0.0856 0.1390 -0.13628
2007 10 24 54397 0.0820 0.1387 -0.13765
2007 10 25 54398 0.0783 0.1383 -0.13905
2007 10 26 54399 0.0746 0.1381 -0.14031
2007 10 27 54400 0.0710 0.1378 -0.14127
2007 10 28 54401 0.0673 0.1377 -0.14189
2007 10 29 54402 0.0635 0.1375 -0.14217
2007 10 30 54403 0.0598 0.1375 -0.14229
2007 10 31 54404 0.0561 0.1374 -0.14238
2007 11 1 54405 0.0523 0.1375 -0.14250
2007 11 2 54406 0.0485 0.1375 -0.14273
2007 11 3 54407 0.0447 0.1377 -0.14314
2007 11 4 54408 0.0410 0.1378 -0.14368
2007 11 5 54409 0.0372 0.1381 -0.14428
2007 11 6 54410 0.0333 0.1383 -0.14494
2007 11 7 54411 0.0295 0.1387 -0.14553
2007 11 8 54412 0.0257 0.1390 -0.14607
2007 11 9 54413 0.0219 0.1394 -0.14657
2007 11 10 54414 0.0181 0.1399 -0.14688
2007 11 11 54415 0.0142 0.1404 -0.14700
2007 11 12 54416 0.0104 0.1410 -0.14697
2007 11 13 54417 0.0066 0.1416 -0.14686
2007 11 14 54418 0.0027 0.1423 -0.14678
2007 11 15 54419 -0.0011 0.1430 -0.14681
2007 11 16 54420 -0.0049 0.1438 -0.14701
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)
54036 -62.50 .12 -4.34 .34
54037 -62.25 .16 -4.35 .34
54038 -61.96 .16 -4.36 .34
54039 -61.66 .22 -4.30 .34
54040 -61.47 .15 -4.10 .34
54041 -61.56 .15 -3.76 .34
54042 -61.90 .15 -3.45 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54036 0.104 0.048 0.034 0.340
54037 0.120 0.064 0.037 0.340
54038 0.126 0.064 0.034 0.340
54039 0.118 0.088 0.054 0.340
54040 0.105 0.060 0.076 0.340
54041 0.085 0.060 0.077 0.340
54042 0.065 0.060 0.061 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