**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
29 December 2005 Vol. XVIII No. 052
______________________________________________________________________
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
= -0.6 seconds beginning 17 March 2005 at 0000 UTC
Beginning 1 January 1999:
TAI-UTC(BIPM) = 32.000 000 seconds
**********************************************************************
* >>> A positive leap second will be introduced in UTC on <<< *
* >>> 31 December 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
5 12 23 53727 .06185 .00004 .38737 .00010 -.656833 .000010
5 12 24 53728 .06124 .00004 .38711 .00011 -.657763 .000010
5 12 25 53729 .06063 .00016 .38699 .00011 -.658682 .000010
5 12 26 53730 .05955 .00015 .38700 .00009 -.659544 .000013
5 12 27 53731 .05826 .00015 .38685 .00008 -.660274 .000013
5 12 28 53732 .05703 .00016 .38632 .00005 -.660783 .000013
5 12 29 53733 .05598 .00017 .38543 .00006 -.661069 .000013
_______________________________________________________________________
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 = .0370 - .0546 cos A - .1309 sin A + .0826 cos C + .1492 sin C
y = .3549 - .1272 cos A + .0515 sin A + .1492 cos C - .0826 sin C
UT1-UTC = .3343 - .00042 (MJD - 53737) - (UT2-UT1)
where A = 2*pi*(MJD-53733)/365.25 and C = 2*pi*(MJD-53733)/435.
TAI-UTC(MJD 53734) = 32.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53733)**0.80 S t = 0.00025 (MJD-53733)**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)
2005 12 30 53734 0.0551 0.3845 -0.66118
2005 12 31 53735 0.0543 0.3837 -0.66122
2006 1 1 53736 0.0537 0.3829 0.33868
2006 1 2 53737 0.0532 0.3823 0.33838
2006 1 3 53738 0.0527 0.3817 0.33779
2006 1 4 53739 0.0524 0.3811 0.33690
2006 1 5 53740 0.0521 0.3806 0.33580
2006 1 6 53741 0.0519 0.3802 0.33461
2006 1 7 53742 0.0518 0.3798 0.33350
2006 1 8 53743 0.0517 0.3795 0.33258
2006 1 9 53744 0.0517 0.3791 0.33192
2006 1 10 53745 0.0518 0.3788 0.33152
2006 1 11 53746 0.0518 0.3786 0.33136
2006 1 12 53747 0.0520 0.3783 0.33136
2006 1 13 53748 0.0522 0.3781 0.33145
2006 1 14 53749 0.0524 0.3778 0.33154
2006 1 15 53750 0.0526 0.3776 0.33157
2006 1 16 53751 0.0529 0.3774 0.33148
2006 1 17 53752 0.0532 0.3772 0.33122
2006 1 18 53753 0.0535 0.3771 0.33080
2006 1 19 53754 0.0539 0.3769 0.33023
2006 1 20 53755 0.0542 0.3767 0.32957
2006 1 21 53756 0.0546 0.3765 0.32888
2006 1 22 53757 0.0550 0.3764 0.32821
2006 1 23 53758 0.0554 0.3762 0.32764
2006 1 24 53759 0.0558 0.3760 0.32720
2006 1 25 53760 0.0563 0.3758 0.32694
2006 1 26 53761 0.0567 0.3757 0.32684
2006 1 27 53762 0.0572 0.3755 0.32683
2006 1 28 53763 0.0576 0.3753 0.32678
2006 1 29 53764 0.0581 0.3752 0.32654
2006 1 30 53765 0.0585 0.3750 0.32601
2006 1 31 53766 0.0590 0.3748 0.32515
2006 2 1 53767 0.0595 0.3746 0.32402
2006 2 2 53768 0.0599 0.3745 0.32276
2006 2 3 53769 0.0604 0.3743 0.32154
2006 2 4 53770 0.0609 0.3741 0.32052
2006 2 5 53771 0.0614 0.3739 0.31979
2006 2 6 53772 0.0618 0.3737 0.31936
2006 2 7 53773 0.0623 0.3735 0.31917
2006 2 8 53774 0.0628 0.3733 0.31915
2006 2 9 53775 0.0632 0.3731 0.31920
2006 2 10 53776 0.0637 0.3729 0.31925
2006 2 11 53777 0.0641 0.3727 0.31921
2006 2 12 53778 0.0646 0.3725 0.31903
2006 2 13 53779 0.0651 0.3723 0.31867
2006 2 14 53780 0.0655 0.3721 0.31814
2006 2 15 53781 0.0660 0.3719 0.31745
2006 2 16 53782 0.0664 0.3717 0.31666
2006 2 17 53783 0.0668 0.3715 0.31584
2006 2 18 53784 0.0673 0.3713 0.31504
2006 2 19 53785 0.0677 0.3711 0.31433
2006 2 20 53786 0.0681 0.3708 0.31376
2006 2 21 53787 0.0685 0.3706 0.31336
2006 2 22 53788 0.0690 0.3704 0.31312
2006 2 23 53789 0.0694 0.3702 0.31299
2006 2 24 53790 0.0698 0.3700 0.31286
2006 2 25 53791 0.0702 0.3697 0.31260
2006 2 26 53792 0.0706 0.3695 0.31206
2006 2 27 53793 0.0710 0.3693 0.31117
2006 2 28 53794 0.0713 0.3691 0.30992
2006 3 1 53795 0.0717 0.3688 0.30843
2006 3 2 53796 0.0721 0.3686 0.30689
2006 3 3 53797 0.0725 0.3684 0.30548
2006 3 4 53798 0.0728 0.3681 0.30435
2006 3 5 53799 0.0732 0.3679 0.30354
2006 3 6 53800 0.0736 0.3677 0.30304
2006 3 7 53801 0.0739 0.3674 0.30275
2006 3 8 53802 0.0743 0.3672 0.30257
2006 3 9 53803 0.0746 0.3670 0.30239
2006 3 10 53804 0.0750 0.3667 0.30214
2006 3 11 53805 0.0753 0.3665 0.30174
2006 3 12 53806 0.0756 0.3663 0.30117
2006 3 13 53807 0.0759 0.3660 0.30041
2006 3 14 53808 0.0763 0.3658 0.29947
2006 3 15 53809 0.0766 0.3656 0.29841
2006 3 16 53810 0.0769 0.3653 0.29727
2006 3 17 53811 0.0772 0.3652 0.29614
2006 3 18 53812 0.0775 0.3649 0.29508
2006 3 19 53813 0.0778 0.3647 0.29416
2006 3 20 53814 0.0781 0.3644 0.29341
2006 3 21 53815 0.0784 0.3642 0.29283
2006 3 22 53816 0.0787 0.3639 0.29238
2006 3 23 53817 0.0790 0.3637 0.29198
2006 3 24 53818 0.0793 0.3634 0.29152
2006 3 25 53819 0.0796 0.3632 0.29086
2006 3 26 53820 0.0798 0.3629 0.28989
2006 3 27 53821 0.0801 0.3627 0.28857
2006 3 28 53822 0.0804 0.3624 0.28695
2006 3 29 53823 0.0807 0.3622 0.28519
2006 3 30 53824 0.0809 0.3619 0.28346
2006 3 31 53825 0.0812 0.3617 0.28195
2006 4 1 53826 0.0814 0.3614 0.28076
2006 4 2 53827 0.0817 0.3611 0.27990
2006 4 3 53828 0.0820 0.3609 0.27932
2006 4 4 53829 0.0822 0.3606 0.27890
2006 4 5 53830 0.0825 0.3603 0.27854
2006 4 6 53831 0.0827 0.3601 0.27814
2006 4 7 53832 0.0830 0.3598 0.27764
2006 4 8 53833 0.0832 0.3595 0.27697
2006 4 9 53834 0.0835 0.3592 0.27614
2006 4 10 53835 0.0838 0.3590 0.27514
2006 4 11 53836 0.0840 0.3587 0.27402
2006 4 12 53837 0.0842 0.3584 0.27283
2006 4 13 53838 0.0845 0.3581 0.27167
2006 4 14 53839 0.0847 0.3578 0.27059
2006 4 15 53840 0.0850 0.3575 0.26965
2006 4 16 53841 0.0855 0.3572 0.26890
2006 4 17 53842 0.0857 0.3569 0.26835
2006 4 18 53843 0.0860 0.3566 0.26796
2006 4 19 53844 0.0862 0.3563 0.26767
2006 4 20 53845 0.0864 0.3560 0.26738
2006 4 21 53846 0.0867 0.3557 0.26695
2006 4 22 53847 0.0869 0.3554 0.26628
2006 4 23 53848 0.0871 0.3550 0.26531
2006 4 24 53849 0.0874 0.3547 0.26404
2006 4 25 53850 0.0876 0.3544 0.26258
2006 4 26 53851 0.0879 0.3540 0.26108
2006 4 27 53852 0.0881 0.3537 0.25971
2006 4 28 53853 0.0884 0.3533 0.25863
2006 4 29 53854 0.0886 0.3530 0.25787
2006 4 30 53855 0.0889 0.3526 0.25744
2006 5 1 53856 0.0891 0.3522 0.25722
2006 5 2 53857 0.0894 0.3519 0.25713
2006 5 3 53858 0.0896 0.3515 0.25703
2006 5 4 53859 0.0899 0.3511 0.25685
2006 5 5 53860 0.0901 0.3507 0.25655
2006 5 6 53861 0.0904 0.3503 0.25608
2006 5 7 53862 0.0906 0.3499 0.25547
2006 5 8 53863 0.0909 0.3495 0.25473
2006 5 9 53864 0.0911 0.3491 0.25392
2006 5 10 53865 0.0914 0.3487 0.25311
2006 5 11 53866 0.0917 0.3482 0.25235
2006 5 12 53867 0.0919 0.3478 0.25173
2006 5 13 53868 0.0922 0.3473 0.25129
2006 5 14 53869 0.0925 0.3469 0.25106
2006 5 15 53870 0.0927 0.3464 0.25103
2006 5 16 53871 0.0930 0.3459 0.25112
2006 5 17 53872 0.0933 0.3455 0.25123
2006 5 18 53873 0.0935 0.3450 0.25125
2006 5 19 53874 0.0938 0.3445 0.25107
2006 5 20 53875 0.0941 0.3440 0.25062
2006 5 21 53876 0.0943 0.3435 0.24992
2006 5 22 53877 0.0946 0.3429 0.24901
2006 5 23 53878 0.0949 0.3424 0.24804
2006 5 24 53879 0.0951 0.3419 0.24714
2006 5 25 53880 0.0954 0.3413 0.24647
2006 5 26 53881 0.0957 0.3408 0.24610
2006 5 27 53882 0.0959 0.3402 0.24605
2006 5 28 53883 0.0962 0.3396 0.24625
2006 5 29 53884 0.0965 0.3391 0.24661
2006 5 30 53885 0.0967 0.3385 0.24702
2006 5 31 53886 0.0970 0.3379 0.24737
2006 6 1 53887 0.0972 0.3372 0.24760
2006 6 2 53888 0.0975 0.3366 0.24768
2006 6 3 53889 0.0978 0.3360 0.24762
2006 6 4 53890 0.0980 0.3354 0.24742
2006 6 5 53891 0.0983 0.3347 0.24715
2006 6 6 53892 0.0985 0.3340 0.24686
2006 6 7 53893 0.0988 0.3334 0.24661
2006 6 8 53894 0.0990 0.3327 0.24648
2006 6 9 53895 0.0992 0.3320 0.24651
2006 6 10 53896 0.0995 0.3313 0.24674
2006 6 11 53897 0.0997 0.3306 0.24717
2006 6 12 53898 0.0999 0.3299 0.24775
2006 6 13 53899 0.1001 0.3292 0.24839
2006 6 14 53900 0.1003 0.3284 0.24896
2006 6 15 53901 0.1005 0.3277 0.24934
2006 6 16 53902 0.1007 0.3270 0.24947
2006 6 17 53903 0.1009 0.3262 0.24933
2006 6 18 53904 0.1011 0.3254 0.24900
2006 6 19 53905 0.1013 0.3246 0.24858
2006 6 20 53906 0.1015 0.3239 0.24823
2006 6 21 53907 0.1016 0.3231 0.24807
2006 6 22 53908 0.1018 0.3223 0.24818
2006 6 23 53909 0.1019 0.3214 0.24859
2006 6 24 53910 0.1021 0.3206 0.24926
2006 6 25 53911 0.1022 0.3198 0.25011
2006 6 26 53912 0.1023 0.3190 0.25102
2006 6 27 53913 0.1024 0.3181 0.25190
2006 6 28 53914 0.1025 0.3173 0.25265
2006 6 29 53915 0.1026 0.3164 0.25325
2006 6 30 53916 0.1026 0.3155 0.25367
2006 7 1 53917 0.1027 0.3147 0.25393
2006 7 2 53918 0.1028 0.3138 0.25408
2006 7 3 53919 0.1028 0.3129 0.25416
2006 7 4 53920 0.1028 0.3120 0.25425
2006 7 5 53921 0.1028 0.3111 0.25441
2006 7 6 53922 0.1028 0.3102 0.25469
2006 7 7 53923 0.1028 0.3093 0.25516
2006 7 8 53924 0.1027 0.3084 0.25582
2006 7 9 53925 0.1026 0.3075 0.25667
2006 7 10 53926 0.1024 0.3066 0.25762
2006 7 11 53927 0.1023 0.3057 0.25856
2006 7 12 53928 0.1021 0.3048 0.25935
2006 7 13 53929 0.1019 0.3039 0.25987
2006 7 14 53930 0.1017 0.3030 0.26008
2006 7 15 53931 0.1015 0.3021 0.26003
2006 7 16 53932 0.1013 0.3011 0.25985
2006 7 17 53933 0.1010 0.3002 0.25967
2006 7 18 53934 0.1008 0.2993 0.25966
2006 7 19 53935 0.1005 0.2984 0.25989
2006 7 20 53936 0.1001 0.2974 0.26041
2006 7 21 53937 0.0998 0.2965 0.26119
2006 7 22 53938 0.0995 0.2956 0.26215
2006 7 23 53939 0.0991 0.2947 0.26320
2006 7 24 53940 0.0987 0.2937 0.26424
2006 7 25 53941 0.0983 0.2928 0.26520
2006 7 26 53942 0.0978 0.2919 0.26600
2006 7 27 53943 0.0974 0.2910 0.26663
2006 7 28 53944 0.0969 0.2900 0.26708
2006 7 29 53945 0.0964 0.2891 0.26740
2006 7 30 53946 0.0959 0.2882 0.26765
2006 7 31 53947 0.0953 0.2873 0.26788
2006 8 1 53948 0.0947 0.2864 0.26817
2006 8 2 53949 0.0941 0.2855 0.26860
2006 8 3 53950 0.0935 0.2846 0.26920
2006 8 4 53951 0.0929 0.2837 0.26996
2006 8 5 53952 0.0922 0.2828 0.27085
2006 8 6 53953 0.0915 0.2819 0.27186
2006 8 7 53954 0.0908 0.2811 0.27292
2006 8 8 53955 0.0901 0.2802 0.27387
2006 8 9 53956 0.0893 0.2793 0.27456
2006 8 10 53957 0.0885 0.2785 0.27492
2006 8 11 53958 0.0877 0.2776 0.27497
2006 8 12 53959 0.0868 0.2768 0.27477
2006 8 13 53960 0.0860 0.2760 0.27444
2006 8 14 53961 0.0851 0.2752 0.27417
2006 8 15 53962 0.0842 0.2744 0.27409
2006 8 16 53963 0.0832 0.2736 0.27428
2006 8 17 53964 0.0822 0.2728 0.27477
2006 8 18 53965 0.0812 0.2720 0.27539
2006 8 19 53966 0.0802 0.2713 0.27610
2006 8 20 53967 0.0792 0.2705 0.27677
2006 8 21 53968 0.0781 0.2698 0.27728
2006 8 22 53969 0.0770 0.2691 0.27761
2006 8 23 53970 0.0759 0.2684 0.27778
2006 8 24 53971 0.0747 0.2677 0.27778
2006 8 25 53972 0.0736 0.2671 0.27757
2006 8 26 53973 0.0724 0.2664 0.27729
2006 8 27 53974 0.0711 0.2658 0.27697
2006 8 28 53975 0.0699 0.2652 0.27670
2006 8 29 53976 0.0686 0.2646 0.27654
2006 8 30 53977 0.0673 0.2640 0.27654
2006 8 31 53978 0.0660 0.2634 0.27676
2006 9 1 53979 0.0647 0.2629 0.27715
2006 9 2 53980 0.0633 0.2623 0.27761
2006 9 3 53981 0.0619 0.2618 0.27809
2006 9 4 53982 0.0605 0.2614 0.27849
2006 9 5 53983 0.0591 0.2609 0.27865
2006 9 6 53984 0.0576 0.2604 0.27847
2006 9 7 53985 0.0561 0.2600 0.27790
2006 9 8 53986 0.0546 0.2596 0.27705
2006 9 9 53987 0.0531 0.2593 0.27599
2006 9 10 53988 0.0516 0.2589 0.27493
2006 9 11 53989 0.0500 0.2586 0.27408
2006 9 12 53990 0.0484 0.2583 0.27358
2006 9 13 53991 0.0468 0.2580 0.27345
2006 9 14 53992 0.0452 0.2577 0.27363
2006 9 15 53993 0.0436 0.2575 0.27393
2006 9 16 53994 0.0419 0.2573 0.27427
2006 9 17 53995 0.0402 0.2571 0.27451
2006 9 18 53996 0.0385 0.2569 0.27460
2006 9 19 53997 0.0368 0.2568 0.27452
2006 9 20 53998 0.0351 0.2567 0.27428
2006 9 21 53999 0.0334 0.2566 0.27394
2006 9 22 54000 0.0316 0.2566 0.27355
2006 9 23 54001 0.0298 0.2566 0.27320
2006 9 24 54002 0.0281 0.2566 0.27299
2006 9 25 54003 0.0263 0.2566 0.27289
2006 9 26 54004 0.0245 0.2567 0.27295
2006 9 27 54005 0.0226 0.2567 0.27309
2006 9 28 54006 0.0208 0.2569 0.27337
2006 9 29 54007 0.0190 0.2570 0.27383
2006 9 30 54008 0.0171 0.2572 0.27439
2006 10 1 54009 0.0153 0.2574 0.27489
2006 10 2 54010 0.0134 0.2576 0.27517
2006 10 3 54011 0.0115 0.2579 0.27520
2006 10 4 54012 0.0096 0.2582 0.27490
2006 10 5 54013 0.0077 0.2585 0.27432
2006 10 6 54014 0.0059 0.2588 0.27347
2006 10 7 54015 0.0040 0.2592 0.27251
2006 10 8 54016 0.0021 0.2596 0.27163
2006 10 9 54017 0.0001 0.2601 0.27101
2006 10 10 54018 -0.0018 0.2606 0.27072
2006 10 11 54019 -0.0037 0.2611 0.27071
2006 10 12 54020 -0.0056 0.2616 0.27089
2006 10 13 54021 -0.0075 0.2622 0.27114
2006 10 14 54022 -0.0094 0.2628 0.27138
2006 10 15 54023 -0.0113 0.2634 0.27156
2006 10 16 54024 -0.0132 0.2640 0.27161
2006 10 17 54025 -0.0151 0.2647 0.27147
2006 10 18 54026 -0.0170 0.2654 0.27114
2006 10 19 54027 -0.0189 0.2662 0.27069
2006 10 20 54028 -0.0208 0.2670 0.27022
2006 10 21 54029 -0.0227 0.2678 0.26974
2006 10 22 54030 -0.0245 0.2686 0.26927
2006 10 23 54031 -0.0264 0.2695 0.26884
2006 10 24 54032 -0.0283 0.2704 0.26850
2006 10 25 54033 -0.0301 0.2713 0.26829
2006 10 26 54034 -0.0319 0.2723 0.26821
2006 10 27 54035 -0.0338 0.2732 0.26825
2006 10 28 54036 -0.0356 0.2743 0.26823
2006 10 29 54037 -0.0374 0.2753 0.26794
2006 10 30 54038 -0.0392 0.2764 0.26728
2006 10 31 54039 -0.0409 0.2775 0.26621
2006 11 1 54040 -0.0427 0.2786 0.26471
2006 11 2 54041 -0.0444 0.2798 0.26288
2006 11 3 54042 -0.0461 0.2810 0.26095
2006 11 4 54043 -0.0478 0.2822 0.25908
2006 11 5 54044 -0.0495 0.2834 0.25743
2006 11 6 54045 -0.0512 0.2847 0.25613
2006 11 7 54046 -0.0529 0.2860 0.25517
2006 11 8 54047 -0.0545 0.2873 0.25444
2006 11 9 54048 -0.0561 0.2887 0.25388
2006 11 10 54049 -0.0577 0.2900 0.25335
2006 11 11 54050 -0.0592 0.2914 0.25275
2006 11 12 54051 -0.0608 0.2929 0.25198
2006 11 13 54052 -0.0623 0.2943 0.25104
2006 11 14 54053 -0.0638 0.2958 0.24997
2006 11 15 54054 -0.0652 0.2973 0.24885
2006 11 16 54055 -0.0667 0.2988 0.24776
2006 11 17 54056 -0.0681 0.3004 0.24679
2006 11 18 54057 -0.0695 0.3020 0.24588
2006 11 19 54058 -0.0708 0.3036 0.24507
2006 11 20 54059 -0.0722 0.3052 0.24438
2006 11 21 54060 -0.0735 0.3068 0.24384
2006 11 22 54061 -0.0747 0.3085 0.24346
2006 11 23 54062 -0.0760 0.3102 0.24323
2006 11 24 54063 -0.0772 0.3119 0.24310
2006 11 25 54064 -0.0783 0.3136 0.24295
2006 11 26 54065 -0.0795 0.3153 0.24266
2006 11 27 54066 -0.0806 0.3171 0.24212
2006 11 28 54067 -0.0817 0.3189 0.24125
2006 11 29 54068 -0.0827 0.3207 0.24022
2006 11 30 54069 -0.0837 0.3225 0.23919
2006 12 1 54070 -0.0847 0.3244 0.23818
2006 12 2 54071 -0.0857 0.3262 0.23735
2006 12 3 54072 -0.0866 0.3281 0.23680
2006 12 4 54073 -0.0874 0.3300 0.23661
2006 12 5 54074 -0.0883 0.3319 0.23672
2006 12 6 54075 -0.0891 0.3338 0.23697
2006 12 7 54076 -0.0898 0.3357 0.23719
2006 12 8 54077 -0.0906 0.3377 0.23733
2006 12 9 54078 -0.0912 0.3396 0.23732
2006 12 10 54079 -0.0919 0.3416 0.23711
2006 12 11 54080 -0.0925 0.3436 0.23665
2006 12 12 54081 -0.0931 0.3456 0.23600
2006 12 13 54082 -0.0936 0.3476 0.23523
2006 12 14 54083 -0.0941 0.3496 0.23442
2006 12 15 54084 -0.0946 0.3516 0.23364
2006 12 16 54085 -0.0950 0.3537 0.23302
2006 12 17 54086 -0.0954 0.3557 0.23253
2006 12 18 54087 -0.0957 0.3578 0.23223
2006 12 19 54088 -0.0960 0.3598 0.23212
2006 12 20 54089 -0.0963 0.3619 0.23218
2006 12 21 54090 -0.0965 0.3640 0.23230
2006 12 22 54091 -0.0967 0.3661 0.23233
2006 12 23 54092 -0.0968 0.3681 0.23220
2006 12 24 54093 -0.0969 0.3702 0.23185
2006 12 25 54094 -0.0970 0.3723 0.23126
2006 12 26 54095 -0.0970 0.3744 0.23043
2006 12 27 54096 -0.0970 0.3765 0.22952
2006 12 28 54097 -0.0970 0.3786 0.22867
2006 12 29 54098 -0.0969 0.3808 0.22796
These predictions are based on all announced leap seconds.
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.
**************************************************************************
Important Notices - Important Notices - Important Notices
**************************************************************************
No leap second was introduced in UTC on 30 June 2005.
On 04 July 2005, the annoucement was made that a positive leap second
will be 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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