**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
12 January 2006 Vol. XIX No. 002
______________________________________________________________________
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
= +0.3 seconds beginning 01 January 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* >>> A positive leap second was 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
6 1 6 53741 .04949 .00002 .38180 .00003 .335555 .000013
6 1 7 53742 .04959 .00002 .38167 .00003 .334656 .000013
6 1 8 53743 .04953 .00003 .38153 .00003 .333967 .000013
6 1 9 53744 .04952 .00003 .38130 .00003 .333516 .000013
6 1 10 53745 .04957 .00003 .38111 .00003 .333321 .000013
6 1 11 53746 .04924 .00003 .38096 .00003 .333358 .000013
6 1 12 53747 .04883 .00003 .38062 .00003 .333562 .000011
_______________________________________________________________________
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 = .0364 - .0916 cos A - .1241 sin A + .1078 cos C + .1401 sin C
y = .3569 - .1205 cos A + .0828 sin A + .1401 cos C - .1078 sin C
UT1-UTC = .3309 - .00041 (MJD - 53752) - (UT2-UT1)
where A = 2*pi*(MJD-53747)/365.25 and C = 2*pi*(MJD-53747)/435.
TAI-UTC(MJD 53748) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53747)**0.80 S t = 0.00025 (MJD-53747)**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 1 13 53748 0.0486 0.3802 0.33384
2006 1 14 53749 0.0485 0.3799 0.33405
2006 1 15 53750 0.0485 0.3796 0.33411
2006 1 16 53751 0.0485 0.3793 0.33401
2006 1 17 53752 0.0486 0.3791 0.33375
2006 1 18 53753 0.0487 0.3789 0.33333
2006 1 19 53754 0.0489 0.3788 0.33276
2006 1 20 53755 0.0491 0.3787 0.33214
2006 1 21 53756 0.0493 0.3785 0.33150
2006 1 22 53757 0.0496 0.3784 0.33090
2006 1 23 53758 0.0499 0.3783 0.33040
2006 1 24 53759 0.0501 0.3782 0.33007
2006 1 25 53760 0.0504 0.3782 0.32992
2006 1 26 53761 0.0508 0.3781 0.32991
2006 1 27 53762 0.0511 0.3780 0.32998
2006 1 28 53763 0.0514 0.3779 0.32997
2006 1 29 53764 0.0518 0.3778 0.32976
2006 1 30 53765 0.0521 0.3777 0.32921
2006 1 31 53766 0.0525 0.3777 0.32831
2006 2 1 53767 0.0528 0.3776 0.32712
2006 2 2 53768 0.0532 0.3775 0.32579
2006 2 3 53769 0.0536 0.3774 0.32450
2006 2 4 53770 0.0540 0.3773 0.32341
2006 2 5 53771 0.0543 0.3772 0.32262
2006 2 6 53772 0.0547 0.3771 0.32214
2006 2 7 53773 0.0551 0.3770 0.32193
2006 2 8 53774 0.0555 0.3770 0.32190
2006 2 9 53775 0.0559 0.3769 0.32194
2006 2 10 53776 0.0563 0.3768 0.32196
2006 2 11 53777 0.0567 0.3767 0.32189
2006 2 12 53778 0.0571 0.3766 0.32167
2006 2 13 53779 0.0575 0.3765 0.32126
2006 2 14 53780 0.0579 0.3764 0.32066
2006 2 15 53781 0.0583 0.3763 0.31989
2006 2 16 53782 0.0588 0.3762 0.31901
2006 2 17 53783 0.0592 0.3761 0.31809
2006 2 18 53784 0.0596 0.3760 0.31718
2006 2 19 53785 0.0600 0.3758 0.31636
2006 2 20 53786 0.0604 0.3757 0.31568
2006 2 21 53787 0.0609 0.3756 0.31516
2006 2 22 53788 0.0613 0.3755 0.31482
2006 2 23 53789 0.0617 0.3754 0.31461
2006 2 24 53790 0.0621 0.3753 0.31440
2006 2 25 53791 0.0626 0.3752 0.31408
2006 2 26 53792 0.0630 0.3751 0.31348
2006 2 27 53793 0.0635 0.3750 0.31254
2006 2 28 53794 0.0639 0.3749 0.31126
2006 3 1 53795 0.0643 0.3748 0.30975
2006 3 2 53796 0.0648 0.3746 0.30819
2006 3 3 53797 0.0652 0.3745 0.30676
2006 3 4 53798 0.0657 0.3744 0.30561
2006 3 5 53799 0.0661 0.3743 0.30478
2006 3 6 53800 0.0665 0.3741 0.30427
2006 3 7 53801 0.0670 0.3740 0.30397
2006 3 8 53802 0.0675 0.3739 0.30378
2006 3 9 53803 0.0679 0.3738 0.30360
2006 3 10 53804 0.0684 0.3736 0.30335
2006 3 11 53805 0.0688 0.3735 0.30297
2006 3 12 53806 0.0693 0.3734 0.30242
2006 3 13 53807 0.0697 0.3732 0.30169
2006 3 14 53808 0.0702 0.3731 0.30080
2006 3 15 53809 0.0706 0.3729 0.29979
2006 3 16 53810 0.0711 0.3728 0.29872
2006 3 17 53811 0.0715 0.3726 0.29765
2006 3 18 53812 0.0720 0.3725 0.29667
2006 3 19 53813 0.0724 0.3723 0.29581
2006 3 20 53814 0.0729 0.3722 0.29513
2006 3 21 53815 0.0733 0.3720 0.29462
2006 3 22 53816 0.0738 0.3719 0.29425
2006 3 23 53817 0.0742 0.3717 0.29393
2006 3 24 53818 0.0747 0.3715 0.29354
2006 3 25 53819 0.0751 0.3714 0.29296
2006 3 26 53820 0.0756 0.3712 0.29206
2006 3 27 53821 0.0760 0.3710 0.29083
2006 3 28 53822 0.0765 0.3708 0.28930
2006 3 29 53823 0.0769 0.3707 0.28763
2006 3 30 53824 0.0774 0.3705 0.28600
2006 3 31 53825 0.0778 0.3703 0.28458
2006 4 1 53826 0.0783 0.3701 0.28348
2006 4 2 53827 0.0787 0.3699 0.28271
2006 4 3 53828 0.0792 0.3697 0.28221
2006 4 4 53829 0.0796 0.3695 0.28187
2006 4 5 53830 0.0801 0.3692 0.28158
2006 4 6 53831 0.0805 0.3690 0.28123
2006 4 7 53832 0.0810 0.3688 0.28077
2006 4 8 53833 0.0814 0.3686 0.28014
2006 4 9 53834 0.0819 0.3683 0.27933
2006 4 10 53835 0.0823 0.3681 0.27837
2006 4 11 53836 0.0827 0.3679 0.27727
2006 4 12 53837 0.0832 0.3676 0.27609
2006 4 13 53838 0.0836 0.3673 0.27492
2006 4 14 53839 0.0841 0.3671 0.27381
2006 4 15 53840 0.0845 0.3668 0.27284
2006 4 16 53841 0.0850 0.3665 0.27206
2006 4 17 53842 0.0854 0.3663 0.27147
2006 4 18 53843 0.0858 0.3660 0.27106
2006 4 19 53844 0.0863 0.3657 0.27074
2006 4 20 53845 0.0867 0.3654 0.27041
2006 4 21 53846 0.0871 0.3651 0.26995
2006 4 22 53847 0.0876 0.3647 0.26925
2006 4 23 53848 0.0880 0.3644 0.26825
2006 4 24 53849 0.0884 0.3641 0.26695
2006 4 25 53850 0.0889 0.3638 0.26546
2006 4 26 53851 0.0893 0.3634 0.26393
2006 4 27 53852 0.0897 0.3631 0.26254
2006 4 28 53853 0.0901 0.3627 0.26145
2006 4 29 53854 0.0906 0.3623 0.26070
2006 4 30 53855 0.0910 0.3619 0.26026
2006 5 1 53856 0.0914 0.3616 0.26005
2006 5 2 53857 0.0918 0.3612 0.25995
2006 5 3 53858 0.0923 0.3608 0.25984
2006 5 4 53859 0.0927 0.3604 0.25966
2006 5 5 53860 0.0931 0.3599 0.25934
2006 5 6 53861 0.0935 0.3595 0.25887
2006 5 7 53862 0.0939 0.3591 0.25825
2006 5 8 53863 0.0943 0.3586 0.25751
2006 5 9 53864 0.0948 0.3582 0.25669
2006 5 10 53865 0.0952 0.3577 0.25587
2006 5 11 53866 0.0956 0.3572 0.25511
2006 5 12 53867 0.0960 0.3567 0.25448
2006 5 13 53868 0.0964 0.3562 0.25404
2006 5 14 53869 0.0968 0.3557 0.25381
2006 5 15 53870 0.0972 0.3552 0.25377
2006 5 16 53871 0.0976 0.3547 0.25386
2006 5 17 53872 0.0980 0.3541 0.25397
2006 5 18 53873 0.0984 0.3536 0.25400
2006 5 19 53874 0.0988 0.3530 0.25382
2006 5 20 53875 0.0992 0.3525 0.25338
2006 5 21 53876 0.0996 0.3519 0.25268
2006 5 22 53877 0.1000 0.3513 0.25179
2006 5 23 53878 0.1003 0.3507 0.25082
2006 5 24 53879 0.1007 0.3501 0.24994
2006 5 25 53880 0.1011 0.3495 0.24928
2006 5 26 53881 0.1015 0.3489 0.24892
2006 5 27 53882 0.1018 0.3482 0.24888
2006 5 28 53883 0.1022 0.3476 0.24910
2006 5 29 53884 0.1026 0.3469 0.24948
2006 5 30 53885 0.1029 0.3462 0.24990
2006 5 31 53886 0.1033 0.3455 0.25027
2006 6 1 53887 0.1036 0.3448 0.25052
2006 6 2 53888 0.1040 0.3441 0.25062
2006 6 3 53889 0.1043 0.3434 0.25058
2006 6 4 53890 0.1046 0.3427 0.25041
2006 6 5 53891 0.1050 0.3419 0.25016
2006 6 6 53892 0.1053 0.3412 0.24989
2006 6 7 53893 0.1056 0.3404 0.24966
2006 6 8 53894 0.1059 0.3397 0.24955
2006 6 9 53895 0.1062 0.3389 0.24959
2006 6 10 53896 0.1065 0.3381 0.24984
2006 6 11 53897 0.1068 0.3373 0.25029
2006 6 12 53898 0.1071 0.3365 0.25089
2006 6 13 53899 0.1074 0.3356 0.25154
2006 6 14 53900 0.1076 0.3348 0.25212
2006 6 15 53901 0.1079 0.3340 0.25251
2006 6 16 53902 0.1081 0.3331 0.25264
2006 6 17 53903 0.1084 0.3322 0.25250
2006 6 18 53904 0.1086 0.3314 0.25216
2006 6 19 53905 0.1088 0.3305 0.25174
2006 6 20 53906 0.1091 0.3296 0.25138
2006 6 21 53907 0.1093 0.3287 0.25121
2006 6 22 53908 0.1095 0.3278 0.25131
2006 6 23 53909 0.1096 0.3268 0.25171
2006 6 24 53910 0.1098 0.3259 0.25237
2006 6 25 53911 0.1100 0.3250 0.25321
2006 6 26 53912 0.1101 0.3240 0.25411
2006 6 27 53913 0.1103 0.3231 0.25498
2006 6 28 53914 0.1104 0.3221 0.25574
2006 6 29 53915 0.1105 0.3211 0.25634
2006 6 30 53916 0.1106 0.3201 0.25679
2006 7 1 53917 0.1107 0.3191 0.25709
2006 7 2 53918 0.1108 0.3182 0.25730
2006 7 3 53919 0.1109 0.3171 0.25746
2006 7 4 53920 0.1109 0.3161 0.25765
2006 7 5 53921 0.1109 0.3151 0.25792
2006 7 6 53922 0.1109 0.3141 0.25834
2006 7 7 53923 0.1109 0.3131 0.25893
2006 7 8 53924 0.1109 0.3120 0.25971
2006 7 9 53925 0.1109 0.3110 0.26066
2006 7 10 53926 0.1109 0.3100 0.26169
2006 7 11 53927 0.1108 0.3089 0.26267
2006 7 12 53928 0.1107 0.3079 0.26349
2006 7 13 53929 0.1106 0.3068 0.26403
2006 7 14 53930 0.1105 0.3058 0.26426
2006 7 15 53931 0.1104 0.3047 0.26424
2006 7 16 53932 0.1102 0.3036 0.26407
2006 7 17 53933 0.1100 0.3026 0.26393
2006 7 18 53934 0.1099 0.3015 0.26393
2006 7 19 53935 0.1096 0.3004 0.26416
2006 7 20 53936 0.1094 0.2993 0.26465
2006 7 21 53937 0.1092 0.2983 0.26535
2006 7 22 53938 0.1088 0.2972 0.26620
2006 7 23 53939 0.1085 0.2961 0.26709
2006 7 24 53940 0.1081 0.2951 0.26796
2006 7 25 53941 0.1077 0.2940 0.26873
2006 7 26 53942 0.1073 0.2929 0.26936
2006 7 27 53943 0.1068 0.2919 0.26985
2006 7 28 53944 0.1064 0.2908 0.27022
2006 7 29 53945 0.1059 0.2897 0.27050
2006 7 30 53946 0.1054 0.2887 0.27074
2006 7 31 53947 0.1048 0.2876 0.27100
2006 8 1 53948 0.1043 0.2866 0.27134
2006 8 2 53949 0.1037 0.2855 0.27180
2006 8 3 53950 0.1031 0.2845 0.27242
2006 8 4 53951 0.1025 0.2835 0.27321
2006 8 5 53952 0.1018 0.2824 0.27416
2006 8 6 53953 0.1011 0.2814 0.27520
2006 8 7 53954 0.1004 0.2804 0.27621
2006 8 8 53955 0.0997 0.2794 0.27705
2006 8 9 53956 0.0989 0.2784 0.27759
2006 8 10 53957 0.0982 0.2774 0.27775
2006 8 11 53958 0.0974 0.2764 0.27754
2006 8 12 53959 0.0965 0.2755 0.27708
2006 8 13 53960 0.0957 0.2745 0.27657
2006 8 14 53961 0.0948 0.2735 0.27619
2006 8 15 53962 0.0939 0.2726 0.27610
2006 8 16 53963 0.0929 0.2717 0.27632
2006 8 17 53964 0.0920 0.2707 0.27682
2006 8 18 53965 0.0910 0.2698 0.27750
2006 8 19 53966 0.0900 0.2689 0.27826
2006 8 20 53967 0.0890 0.2681 0.27902
2006 8 21 53968 0.0879 0.2672 0.27972
2006 8 22 53969 0.0868 0.2664 0.28031
2006 8 23 53970 0.0857 0.2655 0.28074
2006 8 24 53971 0.0845 0.2647 0.28098
2006 8 25 53972 0.0834 0.2639 0.28103
2006 8 26 53973 0.0822 0.2631 0.28095
2006 8 27 53974 0.0810 0.2623 0.28086
2006 8 28 53975 0.0797 0.2616 0.28083
2006 8 29 53976 0.0784 0.2608 0.28085
2006 8 30 53977 0.0771 0.2601 0.28100
2006 8 31 53978 0.0758 0.2594 0.28132
2006 9 1 53979 0.0745 0.2588 0.28180
2006 9 2 53980 0.0731 0.2581 0.28243
2006 9 3 53981 0.0717 0.2575 0.28306
2006 9 4 53982 0.0703 0.2568 0.28355
2006 9 5 53983 0.0688 0.2562 0.28386
2006 9 6 53984 0.0673 0.2557 0.28389
2006 9 7 53985 0.0659 0.2551 0.28359
2006 9 8 53986 0.0643 0.2546 0.28299
2006 9 9 53987 0.0628 0.2541 0.28225
2006 9 10 53988 0.0612 0.2536 0.28159
2006 9 11 53989 0.0596 0.2531 0.28111
2006 9 12 53990 0.0580 0.2527 0.28086
2006 9 13 53991 0.0564 0.2523 0.28086
2006 9 14 53992 0.0547 0.2519 0.28103
2006 9 15 53993 0.0531 0.2515 0.28129
2006 9 16 53994 0.0514 0.2512 0.28157
2006 9 17 53995 0.0496 0.2509 0.28170
2006 9 18 53996 0.0479 0.2506 0.28168
2006 9 19 53997 0.0462 0.2504 0.28146
2006 9 20 53998 0.0444 0.2501 0.28099
2006 9 21 53999 0.0426 0.2499 0.28035
2006 9 22 54000 0.0408 0.2498 0.27962
2006 9 23 54001 0.0389 0.2496 0.27885
2006 9 24 54002 0.0371 0.2495 0.27805
2006 9 25 54003 0.0352 0.2494 0.27736
2006 9 26 54004 0.0334 0.2493 0.27679
2006 9 27 54005 0.0315 0.2493 0.27640
2006 9 28 54006 0.0296 0.2493 0.27617
2006 9 29 54007 0.0276 0.2494 0.27610
2006 9 30 54008 0.0257 0.2494 0.27614
2006 10 1 54009 0.0237 0.2495 0.27615
2006 10 2 54010 0.0218 0.2496 0.27598
2006 10 3 54011 0.0198 0.2498 0.27551
2006 10 4 54012 0.0178 0.2500 0.27470
2006 10 5 54013 0.0158 0.2502 0.27356
2006 10 6 54014 0.0138 0.2504 0.27217
2006 10 7 54015 0.0118 0.2507 0.27071
2006 10 8 54016 0.0098 0.2510 0.26941
2006 10 9 54017 0.0078 0.2514 0.26834
2006 10 10 54018 0.0057 0.2517 0.26757
2006 10 11 54019 0.0037 0.2521 0.26708
2006 10 12 54020 0.0017 0.2526 0.26682
2006 10 13 54021 -0.0004 0.2530 0.26667
2006 10 14 54022 -0.0025 0.2535 0.26653
2006 10 15 54023 -0.0045 0.2541 0.26626
2006 10 16 54024 -0.0066 0.2546 0.26585
2006 10 17 54025 -0.0086 0.2552 0.26525
2006 10 18 54026 -0.0107 0.2559 0.26450
2006 10 19 54027 -0.0127 0.2565 0.26365
2006 10 20 54028 -0.0148 0.2572 0.26277
2006 10 21 54029 -0.0169 0.2580 0.26197
2006 10 22 54030 -0.0189 0.2587 0.26131
2006 10 23 54031 -0.0210 0.2595 0.26087
2006 10 24 54032 -0.0230 0.2603 0.26072
2006 10 25 54033 -0.0250 0.2612 0.26077
2006 10 26 54034 -0.0271 0.2621 0.26098
2006 10 27 54035 -0.0291 0.2630 0.26122
2006 10 28 54036 -0.0311 0.2640 0.26142
2006 10 29 54037 -0.0331 0.2649 0.26157
2006 10 30 54038 -0.0351 0.2660 0.26156
2006 10 31 54039 -0.0371 0.2670 0.26125
2006 11 1 54040 -0.0391 0.2681 0.26056
2006 11 2 54041 -0.0411 0.2692 0.25964
2006 11 3 54042 -0.0430 0.2703 0.25862
2006 11 4 54043 -0.0450 0.2715 0.25771
2006 11 5 54044 -0.0469 0.2727 0.25698
2006 11 6 54045 -0.0488 0.2739 0.25653
2006 11 7 54046 -0.0507 0.2752 0.25634
2006 11 8 54047 -0.0526 0.2765 0.25638
2006 11 9 54048 -0.0544 0.2778 0.25654
2006 11 10 54049 -0.0563 0.2792 0.25668
2006 11 11 54050 -0.0581 0.2806 0.25670
2006 11 12 54051 -0.0599 0.2820 0.25659
2006 11 13 54052 -0.0617 0.2834 0.25635
2006 11 14 54053 -0.0635 0.2849 0.25603
2006 11 15 54054 -0.0652 0.2864 0.25564
2006 11 16 54055 -0.0669 0.2879 0.25518
2006 11 17 54056 -0.0686 0.2894 0.25469
2006 11 18 54057 -0.0703 0.2910 0.25428
2006 11 19 54058 -0.0719 0.2926 0.25402
2006 11 20 54059 -0.0735 0.2942 0.25391
2006 11 21 54060 -0.0751 0.2959 0.25393
2006 11 22 54061 -0.0767 0.2976 0.25400
2006 11 23 54062 -0.0782 0.2993 0.25411
2006 11 24 54063 -0.0797 0.3010 0.25421
2006 11 25 54064 -0.0812 0.3028 0.25422
2006 11 26 54065 -0.0827 0.3045 0.25409
2006 11 27 54066 -0.0841 0.3063 0.25364
2006 11 28 54067 -0.0855 0.3081 0.25276
2006 11 29 54068 -0.0868 0.3100 0.25150
2006 11 30 54069 -0.0881 0.3119 0.24997
2006 12 1 54070 -0.0894 0.3137 0.24833
2006 12 2 54071 -0.0907 0.3156 0.24677
2006 12 3 54072 -0.0919 0.3176 0.24550
2006 12 4 54073 -0.0931 0.3195 0.24457
2006 12 5 54074 -0.0942 0.3215 0.24391
2006 12 6 54075 -0.0953 0.3235 0.24345
2006 12 7 54076 -0.0964 0.3255 0.24306
2006 12 8 54077 -0.0975 0.3275 0.24258
2006 12 9 54078 -0.0985 0.3295 0.24199
2006 12 10 54079 -0.0994 0.3316 0.24127
2006 12 11 54080 -0.1003 0.3337 0.24041
2006 12 12 54081 -0.1012 0.3358 0.23943
2006 12 13 54082 -0.1021 0.3379 0.23837
2006 12 14 54083 -0.1029 0.3400 0.23733
2006 12 15 54084 -0.1036 0.3421 0.23640
2006 12 16 54085 -0.1044 0.3442 0.23568
2006 12 17 54086 -0.1051 0.3464 0.23523
2006 12 18 54087 -0.1057 0.3486 0.23496
2006 12 19 54088 -0.1063 0.3508 0.23482
2006 12 20 54089 -0.1069 0.3530 0.23476
2006 12 21 54090 -0.1074 0.3552 0.23472
2006 12 22 54091 -0.1079 0.3574 0.23462
2006 12 23 54092 -0.1083 0.3596 0.23440
2006 12 24 54093 -0.1087 0.3618 0.23399
2006 12 25 54094 -0.1091 0.3641 0.23337
2006 12 26 54095 -0.1094 0.3663 0.23255
2006 12 27 54096 -0.1096 0.3686 0.23157
2006 12 28 54097 -0.1098 0.3708 0.23054
2006 12 29 54098 -0.1100 0.3731 0.22972
2006 12 30 54099 -0.1102 0.3754 0.22927
2006 12 31 54100 -0.1102 0.3777 0.22913
2007 1 1 54101 -0.1103 0.3799 0.22928
2007 1 2 54102 -0.1103 0.3822 0.22964
2007 1 3 54103 -0.1102 0.3845 0.23012
2007 1 4 54104 -0.1102 0.3868 0.23058
2007 1 5 54105 -0.1100 0.3891 0.23087
2007 1 6 54106 -0.1099 0.3914 0.23092
2007 1 7 54107 -0.1096 0.3937 0.23077
2007 1 8 54108 -0.1094 0.3960 0.23047
2007 1 9 54109 -0.1091 0.3983 0.23003
2007 1 10 54110 -0.1087 0.4006 0.22949
2007 1 11 54111 -0.1083 0.4029 0.22891
2007 1 12 54112 -0.1079 0.4052 0.22838
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)
53725 -55.66 .34 -1.73 .19
53726 -55.41 .34 -1.64 .19
53727 -55.33 .34 -1.46 .19
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53725 0.237 0.135 -0.247 0.190
53726 0.235 0.135 -0.250 0.190
53727 0.224 0.135 -0.249 0.190
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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