**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
15 December 2005 Vol. XVIII No. 050
______________________________________________________________________
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 9 53713 .06597 .00003 .39024 .00004 -.650284 .000010
5 12 10 53714 .06531 .00003 .38965 .00003 -.651251 .000011
5 12 11 53715 .06431 .00004 .38890 .00003 -.652132 .000012
5 12 12 53716 .06347 .00003 .38814 .00003 -.652900 .000013
5 12 13 53717 .06309 .00003 .38765 .00003 -.653478 .000013
5 12 14 53718 .06334 .00003 .38741 .00002 -.653837 .000015
5 12 15 53719 .06410 .00004 .38724 .00002 -.653999 .000014
_______________________________________________________________________
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 = .0410 - .0180 cos A - .1323 sin A + .0527 cos C + .1543 sin C
y = .3531 - .1290 cos A + .0171 sin A + .1543 cos C - .0527 sin C
UT1-UTC = -.6581 - .00043 (MJD - 53724) - (UT2-UT1)
where A = 2*pi*(MJD-53719)/365.25 and C = 2*pi*(MJD-53719)/435.
TAI-UTC(MJD 53720) = 32.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53719)**0.80 S t = 0.00025 (MJD-53719)**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 16 53720 0.0649 0.3870 -0.65405
2005 12 17 53721 0.0656 0.3867 -0.65409
2005 12 18 53722 0.0662 0.3863 -0.65422
2005 12 19 53723 0.0667 0.3860 -0.65450
2005 12 20 53724 0.0672 0.3856 -0.65494
2005 12 21 53725 0.0676 0.3852 -0.65553
2005 12 22 53726 0.0680 0.3848 -0.65625
2005 12 23 53727 0.0683 0.3844 -0.65705
2005 12 24 53728 0.0686 0.3839 -0.65787
2005 12 25 53729 0.0688 0.3835 -0.65864
2005 12 26 53730 0.0691 0.3831 -0.65929
2005 12 27 53731 0.0693 0.3827 -0.65977
2005 12 28 53732 0.0695 0.3823 -0.66004
2005 12 29 53733 0.0697 0.3819 -0.66013
2005 12 30 53734 0.0699 0.3815 -0.66007
2005 12 31 53735 0.0700 0.3811 -0.65995
2006 1 1 53736 0.0702 0.3807 0.34007
2006 1 2 53737 0.0704 0.3803 0.33987
2006 1 3 53738 0.0705 0.3799 0.33936
2006 1 4 53739 0.0707 0.3795 0.33853
2006 1 5 53740 0.0708 0.3791 0.33751
2006 1 6 53741 0.0710 0.3787 0.33642
2006 1 7 53742 0.0711 0.3783 0.33542
2006 1 8 53743 0.0712 0.3779 0.33461
2006 1 9 53744 0.0714 0.3776 0.33407
2006 1 10 53745 0.0715 0.3772 0.33380
2006 1 11 53746 0.0717 0.3768 0.33376
2006 1 12 53747 0.0719 0.3764 0.33387
2006 1 13 53748 0.0720 0.3761 0.33405
2006 1 14 53749 0.0722 0.3757 0.33420
2006 1 15 53750 0.0723 0.3754 0.33426
2006 1 16 53751 0.0725 0.3750 0.33417
2006 1 17 53752 0.0727 0.3746 0.33391
2006 1 18 53753 0.0728 0.3743 0.33348
2006 1 19 53754 0.0730 0.3739 0.33292
2006 1 20 53755 0.0732 0.3736 0.33227
2006 1 21 53756 0.0733 0.3732 0.33159
2006 1 22 53757 0.0735 0.3729 0.33097
2006 1 23 53758 0.0737 0.3725 0.33045
2006 1 24 53759 0.0739 0.3722 0.33010
2006 1 25 53760 0.0740 0.3718 0.32994
2006 1 26 53761 0.0742 0.3715 0.32995
2006 1 27 53762 0.0744 0.3711 0.33005
2006 1 28 53763 0.0746 0.3708 0.33012
2006 1 29 53764 0.0748 0.3705 0.33001
2006 1 30 53765 0.0750 0.3701 0.32961
2006 1 31 53766 0.0751 0.3698 0.32886
2006 2 1 53767 0.0753 0.3694 0.32784
2006 2 2 53768 0.0755 0.3691 0.32669
2006 2 3 53769 0.0757 0.3688 0.32556
2006 2 4 53770 0.0759 0.3685 0.32462
2006 2 5 53771 0.0760 0.3681 0.32395
2006 2 6 53772 0.0762 0.3678 0.32356
2006 2 7 53773 0.0764 0.3675 0.32341
2006 2 8 53774 0.0766 0.3672 0.32342
2006 2 9 53775 0.0767 0.3669 0.32350
2006 2 10 53776 0.0769 0.3665 0.32355
2006 2 11 53777 0.0771 0.3662 0.32350
2006 2 12 53778 0.0773 0.3659 0.32331
2006 2 13 53779 0.0774 0.3656 0.32294
2006 2 14 53780 0.0776 0.3653 0.32239
2006 2 15 53781 0.0777 0.3650 0.32170
2006 2 16 53782 0.0779 0.3647 0.32090
2006 2 17 53783 0.0781 0.3644 0.32006
2006 2 18 53784 0.0782 0.3641 0.31924
2006 2 19 53785 0.0784 0.3638 0.31850
2006 2 20 53786 0.0785 0.3635 0.31790
2006 2 21 53787 0.0786 0.3632 0.31746
2006 2 22 53788 0.0788 0.3629 0.31718
2006 2 23 53789 0.0789 0.3626 0.31700
2006 2 24 53790 0.0790 0.3624 0.31682
2006 2 25 53791 0.0792 0.3621 0.31651
2006 2 26 53792 0.0793 0.3618 0.31591
2006 2 27 53793 0.0794 0.3615 0.31496
2006 2 28 53794 0.0795 0.3612 0.31365
2006 3 1 53795 0.0796 0.3610 0.31210
2006 3 2 53796 0.0797 0.3607 0.31049
2006 3 3 53797 0.0798 0.3604 0.30900
2006 3 4 53798 0.0799 0.3602 0.30778
2006 3 5 53799 0.0800 0.3599 0.30688
2006 3 6 53800 0.0801 0.3596 0.30627
2006 3 7 53801 0.0802 0.3594 0.30587
2006 3 8 53802 0.0803 0.3591 0.30558
2006 3 9 53803 0.0804 0.3588 0.30530
2006 3 10 53804 0.0805 0.3586 0.30495
2006 3 11 53805 0.0806 0.3583 0.30446
2006 3 12 53806 0.0807 0.3581 0.30379
2006 3 13 53807 0.0808 0.3578 0.30295
2006 3 14 53808 0.0809 0.3576 0.30194
2006 3 15 53809 0.0810 0.3573 0.30082
2006 3 16 53810 0.0810 0.3571 0.29964
2006 3 17 53811 0.0811 0.3569 0.29847
2006 3 18 53812 0.0812 0.3566 0.29739
2006 3 19 53813 0.0813 0.3564 0.29646
2006 3 20 53814 0.0813 0.3561 0.29569
2006 3 21 53815 0.0814 0.3559 0.29510
2006 3 22 53816 0.0815 0.3557 0.29465
2006 3 23 53817 0.0815 0.3554 0.29426
2006 3 24 53818 0.0816 0.3552 0.29380
2006 3 25 53819 0.0817 0.3550 0.29314
2006 3 26 53820 0.0817 0.3547 0.29218
2006 3 27 53821 0.0818 0.3545 0.29087
2006 3 28 53822 0.0819 0.3543 0.28926
2006 3 29 53823 0.0819 0.3541 0.28750
2006 3 30 53824 0.0820 0.3538 0.28578
2006 3 31 53825 0.0820 0.3536 0.28430
2006 4 1 53826 0.0821 0.3534 0.28315
2006 4 2 53827 0.0822 0.3531 0.28233
2006 4 3 53828 0.0822 0.3529 0.28178
2006 4 4 53829 0.0823 0.3527 0.28140
2006 4 5 53830 0.0824 0.3525 0.28107
2006 4 6 53831 0.0824 0.3522 0.28070
2006 4 7 53832 0.0825 0.3520 0.28023
2006 4 8 53833 0.0826 0.3518 0.27960
2006 4 9 53834 0.0826 0.3515 0.27880
2006 4 10 53835 0.0827 0.3513 0.27784
2006 4 11 53836 0.0828 0.3511 0.27676
2006 4 12 53837 0.0829 0.3508 0.27561
2006 4 13 53838 0.0829 0.3506 0.27446
2006 4 14 53839 0.0830 0.3504 0.27339
2006 4 15 53840 0.0831 0.3501 0.27246
2006 4 16 53841 0.0832 0.3499 0.27171
2006 4 17 53842 0.0833 0.3496 0.27116
2006 4 18 53843 0.0834 0.3494 0.27078
2006 4 19 53844 0.0835 0.3492 0.27049
2006 4 20 53845 0.0836 0.3489 0.27019
2006 4 21 53846 0.0837 0.3486 0.26976
2006 4 22 53847 0.0838 0.3484 0.26908
2006 4 23 53848 0.0839 0.3481 0.26810
2006 4 24 53849 0.0840 0.3479 0.26683
2006 4 25 53850 0.0841 0.3476 0.26535
2006 4 26 53851 0.0842 0.3473 0.26384
2006 4 27 53852 0.0843 0.3471 0.26246
2006 4 28 53853 0.0845 0.3468 0.26136
2006 4 29 53854 0.0846 0.3465 0.26059
2006 4 30 53855 0.0847 0.3462 0.26014
2006 5 1 53856 0.0849 0.3459 0.25991
2006 5 2 53857 0.0850 0.3456 0.25979
2006 5 3 53858 0.0852 0.3453 0.25967
2006 5 4 53859 0.0853 0.3450 0.25947
2006 5 5 53860 0.0855 0.3447 0.25914
2006 5 6 53861 0.0856 0.3444 0.25866
2006 5 7 53862 0.0858 0.3441 0.25803
2006 5 8 53863 0.0859 0.3437 0.25727
2006 5 9 53864 0.0861 0.3434 0.25644
2006 5 10 53865 0.0863 0.3431 0.25561
2006 5 11 53866 0.0865 0.3427 0.25484
2006 5 12 53867 0.0866 0.3424 0.25420
2006 5 13 53868 0.0868 0.3420 0.25375
2006 5 14 53869 0.0870 0.3416 0.25351
2006 5 15 53870 0.0872 0.3413 0.25346
2006 5 16 53871 0.0874 0.3409 0.25353
2006 5 17 53872 0.0876 0.3405 0.25363
2006 5 18 53873 0.0878 0.3401 0.25364
2006 5 19 53874 0.0880 0.3397 0.25345
2006 5 20 53875 0.0882 0.3393 0.25300
2006 5 21 53876 0.0884 0.3389 0.25229
2006 5 22 53877 0.0886 0.3384 0.25138
2006 5 23 53878 0.0888 0.3380 0.25040
2006 5 24 53879 0.0891 0.3376 0.24951
2006 5 25 53880 0.0893 0.3371 0.24884
2006 5 26 53881 0.0895 0.3366 0.24847
2006 5 27 53882 0.0897 0.3362 0.24842
2006 5 28 53883 0.0899 0.3357 0.24863
2006 5 29 53884 0.0901 0.3352 0.24899
2006 5 30 53885 0.0904 0.3347 0.24940
2006 5 31 53886 0.0906 0.3342 0.24976
2006 6 1 53887 0.0908 0.3337 0.25001
2006 6 2 53888 0.0910 0.3332 0.25010
2006 6 3 53889 0.0913 0.3327 0.25005
2006 6 4 53890 0.0915 0.3321 0.24987
2006 6 5 53891 0.0917 0.3316 0.24962
2006 6 6 53892 0.0919 0.3310 0.24933
2006 6 7 53893 0.0921 0.3305 0.24910
2006 6 8 53894 0.0923 0.3299 0.24897
2006 6 9 53895 0.0926 0.3293 0.24900
2006 6 10 53896 0.0928 0.3287 0.24924
2006 6 11 53897 0.0930 0.3281 0.24967
2006 6 12 53898 0.0932 0.3275 0.25024
2006 6 13 53899 0.0934 0.3269 0.25086
2006 6 14 53900 0.0936 0.3263 0.25140
2006 6 15 53901 0.0938 0.3256 0.25174
2006 6 16 53902 0.0939 0.3250 0.25181
2006 6 17 53903 0.0941 0.3243 0.25160
2006 6 18 53904 0.0943 0.3237 0.25118
2006 6 19 53905 0.0944 0.3230 0.25067
2006 6 20 53906 0.0946 0.3223 0.25022
2006 6 21 53907 0.0948 0.3216 0.24996
2006 6 22 53908 0.0949 0.3209 0.24999
2006 6 23 53909 0.0950 0.3202 0.25034
2006 6 24 53910 0.0951 0.3195 0.25098
2006 6 25 53911 0.0952 0.3188 0.25182
2006 6 26 53912 0.0953 0.3181 0.25274
2006 6 27 53913 0.0953 0.3174 0.25363
2006 6 28 53914 0.0954 0.3167 0.25441
2006 6 29 53915 0.0954 0.3160 0.25503
2006 6 30 53916 0.0954 0.3153 0.25547
2006 7 1 53917 0.0954 0.3145 0.25575
2006 7 2 53918 0.0954 0.3138 0.25592
2006 7 3 53919 0.0954 0.3131 0.25606
2006 7 4 53920 0.0954 0.3123 0.25622
2006 7 5 53921 0.0954 0.3115 0.25648
2006 7 6 53922 0.0953 0.3108 0.25689
2006 7 7 53923 0.0952 0.3100 0.25748
2006 7 8 53924 0.0952 0.3092 0.25827
2006 7 9 53925 0.0951 0.3085 0.25923
2006 7 10 53926 0.0949 0.3077 0.26027
2006 7 11 53927 0.0948 0.3069 0.26129
2006 7 12 53928 0.0947 0.3061 0.26216
2006 7 13 53929 0.0945 0.3053 0.26277
2006 7 14 53930 0.0943 0.3045 0.26311
2006 7 15 53931 0.0941 0.3037 0.26321
2006 7 16 53932 0.0939 0.3029 0.26319
2006 7 17 53933 0.0937 0.3021 0.26319
2006 7 18 53934 0.0934 0.3013 0.26330
2006 7 19 53935 0.0932 0.3005 0.26361
2006 7 20 53936 0.0929 0.2996 0.26414
2006 7 21 53937 0.0926 0.2988 0.26488
2006 7 22 53938 0.0922 0.2980 0.26579
2006 7 23 53939 0.0919 0.2972 0.26674
2006 7 24 53940 0.0915 0.2964 0.26765
2006 7 25 53941 0.0911 0.2956 0.26844
2006 7 26 53942 0.0907 0.2948 0.26901
2006 7 27 53943 0.0903 0.2940 0.26939
2006 7 28 53944 0.0898 0.2932 0.26962
2006 7 29 53945 0.0893 0.2924 0.26974
2006 7 30 53946 0.0888 0.2915 0.26974
2006 7 31 53947 0.0883 0.2907 0.26976
2006 8 1 53948 0.0877 0.2900 0.26983
2006 8 2 53949 0.0872 0.2892 0.27002
2006 8 3 53950 0.0866 0.2884 0.27038
2006 8 4 53951 0.0859 0.2876 0.27093
2006 8 5 53952 0.0853 0.2868 0.27170
2006 8 6 53953 0.0846 0.2860 0.27257
2006 8 7 53954 0.0839 0.2853 0.27342
2006 8 8 53955 0.0832 0.2845 0.27412
2006 8 9 53956 0.0825 0.2838 0.27455
2006 8 10 53957 0.0817 0.2830 0.27464
2006 8 11 53958 0.0809 0.2823 0.27440
2006 8 12 53959 0.0801 0.2816 0.27391
2006 8 13 53960 0.0793 0.2808 0.27342
2006 8 14 53961 0.0784 0.2801 0.27301
2006 8 15 53962 0.0775 0.2794 0.27281
2006 8 16 53963 0.0766 0.2788 0.27290
2006 8 17 53964 0.0757 0.2781 0.27331
2006 8 18 53965 0.0747 0.2774 0.27395
2006 8 19 53966 0.0737 0.2768 0.27475
2006 8 20 53967 0.0727 0.2761 0.27552
2006 8 21 53968 0.0717 0.2755 0.27622
2006 8 22 53969 0.0706 0.2749 0.27674
2006 8 23 53970 0.0696 0.2743 0.27708
2006 8 24 53971 0.0685 0.2737 0.27725
2006 8 25 53972 0.0673 0.2731 0.27729
2006 8 26 53973 0.0662 0.2726 0.27730
2006 8 27 53974 0.0650 0.2720 0.27734
2006 8 28 53975 0.0638 0.2715 0.27751
2006 8 29 53976 0.0626 0.2710 0.27789
2006 8 30 53977 0.0613 0.2705 0.27842
2006 8 31 53978 0.0601 0.2700 0.27913
2006 9 1 53979 0.0588 0.2696 0.27992
2006 9 2 53980 0.0575 0.2691 0.28079
2006 9 3 53981 0.0561 0.2687 0.28175
2006 9 4 53982 0.0548 0.2683 0.28265
2006 9 5 53983 0.0534 0.2679 0.28332
2006 9 6 53984 0.0520 0.2675 0.28359
2006 9 7 53985 0.0506 0.2672 0.28352
2006 9 8 53986 0.0492 0.2669 0.28317
2006 9 9 53987 0.0477 0.2666 0.28273
2006 9 10 53988 0.0463 0.2663 0.28230
2006 9 11 53989 0.0448 0.2660 0.28205
2006 9 12 53990 0.0433 0.2658 0.28206
2006 9 13 53991 0.0418 0.2656 0.28237
2006 9 14 53992 0.0402 0.2654 0.28290
2006 9 15 53993 0.0387 0.2652 0.28355
2006 9 16 53994 0.0371 0.2651 0.28418
2006 9 17 53995 0.0355 0.2649 0.28474
2006 9 18 53996 0.0339 0.2648 0.28518
2006 9 19 53997 0.0323 0.2648 0.28551
2006 9 20 53998 0.0307 0.2647 0.28569
2006 9 21 53999 0.0290 0.2647 0.28569
2006 9 22 54000 0.0274 0.2647 0.28555
2006 9 23 54001 0.0257 0.2647 0.28536
2006 9 24 54002 0.0241 0.2648 0.28521
2006 9 25 54003 0.0224 0.2648 0.28513
2006 9 26 54004 0.0207 0.2649 0.28513
2006 9 27 54005 0.0190 0.2651 0.28517
2006 9 28 54006 0.0173 0.2652 0.28529
2006 9 29 54007 0.0156 0.2654 0.28549
2006 9 30 54008 0.0138 0.2656 0.28573
2006 10 1 54009 0.0121 0.2658 0.28596
2006 10 2 54010 0.0104 0.2661 0.28596
2006 10 3 54011 0.0086 0.2664 0.28553
2006 10 4 54012 0.0069 0.2667 0.28459
2006 10 5 54013 0.0051 0.2670 0.28320
2006 10 6 54014 0.0034 0.2674 0.28145
2006 10 7 54015 0.0017 0.2678 0.27957
2006 10 8 54016 -0.0001 0.2682 0.27786
2006 10 9 54017 -0.0018 0.2686 0.27645
2006 10 10 54018 -0.0036 0.2691 0.27538
2006 10 11 54019 -0.0053 0.2696 0.27466
2006 10 12 54020 -0.0071 0.2702 0.27413
2006 10 13 54021 -0.0088 0.2707 0.27365
2006 10 14 54022 -0.0106 0.2713 0.27315
2006 10 15 54023 -0.0123 0.2719 0.27256
2006 10 16 54024 -0.0140 0.2726 0.27181
2006 10 17 54025 -0.0158 0.2732 0.27087
2006 10 18 54026 -0.0175 0.2739 0.26977
2006 10 19 54027 -0.0192 0.2747 0.26858
2006 10 20 54028 -0.0209 0.2754 0.26739
2006 10 21 54029 -0.0226 0.2762 0.26630
2006 10 22 54030 -0.0243 0.2770 0.26540
2006 10 23 54031 -0.0260 0.2778 0.26463
2006 10 24 54032 -0.0276 0.2787 0.26400
2006 10 25 54033 -0.0293 0.2796 0.26348
2006 10 26 54034 -0.0309 0.2805 0.26308
2006 10 27 54035 -0.0325 0.2814 0.26276
2006 10 28 54036 -0.0341 0.2824 0.26246
2006 10 29 54037 -0.0357 0.2834 0.26213
2006 10 30 54038 -0.0373 0.2844 0.26163
2006 10 31 54039 -0.0389 0.2855 0.26089
2006 11 1 54040 -0.0404 0.2865 0.25982
2006 11 2 54041 -0.0420 0.2876 0.25845
2006 11 3 54042 -0.0435 0.2887 0.25704
2006 11 4 54043 -0.0450 0.2899 0.25581
2006 11 5 54044 -0.0464 0.2911 0.25482
2006 11 6 54045 -0.0479 0.2923 0.25417
2006 11 7 54046 -0.0493 0.2935 0.25386
2006 11 8 54047 -0.0507 0.2947 0.25387
2006 11 9 54048 -0.0521 0.2960 0.25402
2006 11 10 54049 -0.0535 0.2973 0.25413
2006 11 11 54050 -0.0548 0.2986 0.25408
2006 11 12 54051 -0.0562 0.2999 0.25385
2006 11 13 54052 -0.0575 0.3013 0.25345
2006 11 14 54053 -0.0587 0.3027 0.25286
2006 11 15 54054 -0.0600 0.3041 0.25208
2006 11 16 54055 -0.0612 0.3055 0.25116
2006 11 17 54056 -0.0624 0.3069 0.25019
2006 11 18 54057 -0.0635 0.3084 0.24926
2006 11 19 54058 -0.0647 0.3099 0.24843
2006 11 20 54059 -0.0658 0.3114 0.24781
2006 11 21 54060 -0.0669 0.3129 0.24736
2006 11 22 54061 -0.0679 0.3144 0.24706
2006 11 23 54062 -0.0689 0.3160 0.24691
2006 11 24 54063 -0.0699 0.3176 0.24682
2006 11 25 54064 -0.0709 0.3192 0.24667
2006 11 26 54065 -0.0718 0.3208 0.24630
2006 11 27 54066 -0.0727 0.3224 0.24569
2006 11 28 54067 -0.0736 0.3240 0.24481
2006 11 29 54068 -0.0744 0.3257 0.24374
2006 11 30 54069 -0.0752 0.3274 0.24254
2006 12 1 54070 -0.0760 0.3291 0.24139
2006 12 2 54071 -0.0767 0.3308 0.24047
2006 12 3 54072 -0.0774 0.3325 0.23984
2006 12 4 54073 -0.0781 0.3342 0.23950
2006 12 5 54074 -0.0787 0.3360 0.23943
2006 12 6 54075 -0.0793 0.3377 0.23956
2006 12 7 54076 -0.0799 0.3395 0.23977
2006 12 8 54077 -0.0804 0.3413 0.23990
2006 12 9 54078 -0.0809 0.3431 0.23991
2006 12 10 54079 -0.0813 0.3449 0.23979
2006 12 11 54080 -0.0818 0.3467 0.23952
2006 12 12 54081 -0.0822 0.3485 0.23906
2006 12 13 54082 -0.0825 0.3504 0.23851
2006 12 14 54083 -0.0828 0.3522 0.23797
2006 12 15 54084 -0.0831 0.3541 0.23749
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)
53704 -58.55 .47 -1.91 .34
53705 -58.47 .47 -2.12 .34
53706 -58.30 .47 -2.29 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53704 0.208 0.187 -0.185 0.340
53705 0.225 0.187 -0.210 0.340
53706 0.247 0.187 -0.202 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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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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