**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
26 January 2006 Vol. XIX No. 004
______________________________________________________________________
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 20 53755 .05054 .00003 .38092 .00006 .332513 .000016
6 1 21 53756 .05025 .00003 .38116 .00006 .331861 .000017
6 1 22 53757 .05018 .00002 .38121 .00006 .331182 .000010
6 1 23 53758 .05025 .00001 .38073 .00005 .330532 .000010
6 1 24 53759 .05027 .00001 .38023 .00005 .329970 .000010
6 1 25 53760 .05018 .00001 .38032 .00005 .329511 .000010
6 1 26 53761 .05003 .00001 .38068 .00004 .329103 .000010
_______________________________________________________________________
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 = .0433 - .1229 cos A - .1096 sin A + .1311 cos C + .1263 sin C
y = .3589 - .1065 cos A + .1120 sin A + .1263 cos C - .1311 sin C
UT1-UTC = .3204 - .00040 (MJD - 53766) - (UT2-UT1)
where A = 2*pi*(MJD-53761)/365.25 and C = 2*pi*(MJD-53761)/435.
TAI-UTC(MJD 53762) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53761)**0.80 S t = 0.00025 (MJD-53761)**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 27 53762 0.0499 0.3810 0.32869
2006 1 28 53763 0.0499 0.3813 0.32823
2006 1 29 53764 0.0499 0.3815 0.32758
2006 1 30 53765 0.0500 0.3816 0.32664
2006 1 31 53766 0.0501 0.3817 0.32537
2006 2 1 53767 0.0503 0.3818 0.32382
2006 2 2 53768 0.0505 0.3818 0.32214
2006 2 3 53769 0.0507 0.3818 0.32051
2006 2 4 53770 0.0510 0.3818 0.31916
2006 2 5 53771 0.0512 0.3818 0.31819
2006 2 6 53772 0.0515 0.3818 0.31760
2006 2 7 53773 0.0518 0.3817 0.31731
2006 2 8 53774 0.0521 0.3817 0.31724
2006 2 9 53775 0.0524 0.3817 0.31727
2006 2 10 53776 0.0527 0.3816 0.31729
2006 2 11 53777 0.0530 0.3816 0.31723
2006 2 12 53778 0.0534 0.3815 0.31702
2006 2 13 53779 0.0537 0.3815 0.31664
2006 2 14 53780 0.0540 0.3815 0.31609
2006 2 15 53781 0.0544 0.3814 0.31539
2006 2 16 53782 0.0548 0.3814 0.31457
2006 2 17 53783 0.0551 0.3814 0.31369
2006 2 18 53784 0.0555 0.3813 0.31283
2006 2 19 53785 0.0559 0.3813 0.31203
2006 2 20 53786 0.0563 0.3813 0.31136
2006 2 21 53787 0.0567 0.3812 0.31083
2006 2 22 53788 0.0571 0.3812 0.31047
2006 2 23 53789 0.0575 0.3812 0.31021
2006 2 24 53790 0.0579 0.3812 0.30997
2006 2 25 53791 0.0584 0.3811 0.30959
2006 2 26 53792 0.0588 0.3811 0.30897
2006 2 27 53793 0.0592 0.3811 0.30800
2006 2 28 53794 0.0597 0.3811 0.30671
2006 3 1 53795 0.0601 0.3811 0.30519
2006 3 2 53796 0.0606 0.3811 0.30362
2006 3 3 53797 0.0611 0.3810 0.30218
2006 3 4 53798 0.0615 0.3810 0.30102
2006 3 5 53799 0.0620 0.3810 0.30018
2006 3 6 53800 0.0625 0.3810 0.29962
2006 3 7 53801 0.0630 0.3810 0.29927
2006 3 8 53802 0.0635 0.3810 0.29902
2006 3 9 53803 0.0640 0.3809 0.29877
2006 3 10 53804 0.0645 0.3809 0.29845
2006 3 11 53805 0.0650 0.3809 0.29798
2006 3 12 53806 0.0656 0.3808 0.29734
2006 3 13 53807 0.0661 0.3808 0.29651
2006 3 14 53808 0.0666 0.3808 0.29552
2006 3 15 53809 0.0671 0.3807 0.29441
2006 3 16 53810 0.0677 0.3807 0.29326
2006 3 17 53811 0.0682 0.3807 0.29211
2006 3 18 53812 0.0688 0.3806 0.29106
2006 3 19 53813 0.0693 0.3806 0.29015
2006 3 20 53814 0.0699 0.3805 0.28942
2006 3 21 53815 0.0704 0.3804 0.28887
2006 3 22 53816 0.0710 0.3804 0.28847
2006 3 23 53817 0.0716 0.3803 0.28812
2006 3 24 53818 0.0721 0.3802 0.28771
2006 3 25 53819 0.0727 0.3801 0.28711
2006 3 26 53820 0.0733 0.3801 0.28621
2006 3 27 53821 0.0739 0.3800 0.28497
2006 3 28 53822 0.0744 0.3799 0.28344
2006 3 29 53823 0.0750 0.3798 0.28176
2006 3 30 53824 0.0756 0.3797 0.28012
2006 3 31 53825 0.0762 0.3796 0.27870
2006 4 1 53826 0.0768 0.3795 0.27761
2006 4 2 53827 0.0774 0.3793 0.27685
2006 4 3 53828 0.0780 0.3792 0.27637
2006 4 4 53829 0.0786 0.3791 0.27606
2006 4 5 53830 0.0792 0.3789 0.27580
2006 4 6 53831 0.0798 0.3788 0.27549
2006 4 7 53832 0.0804 0.3786 0.27508
2006 4 8 53833 0.0810 0.3785 0.27450
2006 4 9 53834 0.0816 0.3783 0.27374
2006 4 10 53835 0.0822 0.3781 0.27283
2006 4 11 53836 0.0828 0.3779 0.27178
2006 4 12 53837 0.0834 0.3777 0.27067
2006 4 13 53838 0.0840 0.3775 0.26955
2006 4 14 53839 0.0846 0.3773 0.26851
2006 4 15 53840 0.0852 0.3771 0.26761
2006 4 16 53841 0.0858 0.3768 0.26690
2006 4 17 53842 0.0865 0.3766 0.26639
2006 4 18 53843 0.0871 0.3763 0.26606
2006 4 19 53844 0.0877 0.3761 0.26583
2006 4 20 53845 0.0883 0.3758 0.26559
2006 4 21 53846 0.0889 0.3755 0.26522
2006 4 22 53847 0.0895 0.3752 0.26460
2006 4 23 53848 0.0901 0.3749 0.26368
2006 4 24 53849 0.0907 0.3746 0.26246
2006 4 25 53850 0.0913 0.3743 0.26104
2006 4 26 53851 0.0919 0.3740 0.25958
2006 4 27 53852 0.0925 0.3736 0.25824
2006 4 28 53853 0.0931 0.3733 0.25717
2006 4 29 53854 0.0937 0.3729 0.25642
2006 4 30 53855 0.0943 0.3725 0.25598
2006 5 1 53856 0.0949 0.3721 0.25576
2006 5 2 53857 0.0955 0.3717 0.25564
2006 5 3 53858 0.0961 0.3713 0.25552
2006 5 4 53859 0.0966 0.3709 0.25532
2006 5 5 53860 0.0972 0.3705 0.25497
2006 5 6 53861 0.0978 0.3700 0.25447
2006 5 7 53862 0.0984 0.3696 0.25381
2006 5 8 53863 0.0990 0.3691 0.25303
2006 5 9 53864 0.0995 0.3686 0.25219
2006 5 10 53865 0.1001 0.3681 0.25134
2006 5 11 53866 0.1007 0.3676 0.25055
2006 5 12 53867 0.1012 0.3671 0.24992
2006 5 13 53868 0.1018 0.3666 0.24947
2006 5 14 53869 0.1023 0.3660 0.24924
2006 5 15 53870 0.1029 0.3655 0.24921
2006 5 16 53871 0.1034 0.3649 0.24930
2006 5 17 53872 0.1039 0.3643 0.24942
2006 5 18 53873 0.1045 0.3637 0.24945
2006 5 19 53874 0.1050 0.3631 0.24928
2006 5 20 53875 0.1055 0.3625 0.24885
2006 5 21 53876 0.1060 0.3619 0.24816
2006 5 22 53877 0.1065 0.3612 0.24727
2006 5 23 53878 0.1071 0.3606 0.24631
2006 5 24 53879 0.1076 0.3599 0.24544
2006 5 25 53880 0.1080 0.3592 0.24478
2006 5 26 53881 0.1085 0.3585 0.24443
2006 5 27 53882 0.1090 0.3578 0.24439
2006 5 28 53883 0.1095 0.3571 0.24461
2006 5 29 53884 0.1100 0.3563 0.24499
2006 5 30 53885 0.1104 0.3556 0.24541
2006 5 31 53886 0.1109 0.3548 0.24577
2006 6 1 53887 0.1113 0.3540 0.24602
2006 6 2 53888 0.1117 0.3532 0.24612
2006 6 3 53889 0.1122 0.3524 0.24606
2006 6 4 53890 0.1126 0.3516 0.24588
2006 6 5 53891 0.1130 0.3508 0.24562
2006 6 6 53892 0.1134 0.3499 0.24534
2006 6 7 53893 0.1138 0.3491 0.24511
2006 6 8 53894 0.1142 0.3482 0.24498
2006 6 9 53895 0.1146 0.3473 0.24502
2006 6 10 53896 0.1149 0.3464 0.24526
2006 6 11 53897 0.1153 0.3455 0.24570
2006 6 12 53898 0.1156 0.3446 0.24629
2006 6 13 53899 0.1160 0.3437 0.24694
2006 6 14 53900 0.1163 0.3427 0.24752
2006 6 15 53901 0.1166 0.3418 0.24791
2006 6 16 53902 0.1169 0.3408 0.24804
2006 6 17 53903 0.1172 0.3398 0.24791
2006 6 18 53904 0.1175 0.3389 0.24757
2006 6 19 53905 0.1177 0.3379 0.24716
2006 6 20 53906 0.1180 0.3368 0.24681
2006 6 21 53907 0.1182 0.3358 0.24665
2006 6 22 53908 0.1185 0.3348 0.24676
2006 6 23 53909 0.1187 0.3337 0.24717
2006 6 24 53910 0.1189 0.3327 0.24784
2006 6 25 53911 0.1191 0.3316 0.24869
2006 6 26 53912 0.1192 0.3306 0.24960
2006 6 27 53913 0.1194 0.3295 0.25048
2006 6 28 53914 0.1195 0.3284 0.25126
2006 6 29 53915 0.1197 0.3273 0.25188
2006 6 30 53916 0.1198 0.3262 0.25233
2006 7 1 53917 0.1199 0.3251 0.25265
2006 7 2 53918 0.1200 0.3239 0.25287
2006 7 3 53919 0.1200 0.3228 0.25304
2006 7 4 53920 0.1201 0.3217 0.25324
2006 7 5 53921 0.1201 0.3205 0.25351
2006 7 6 53922 0.1201 0.3194 0.25392
2006 7 7 53923 0.1201 0.3182 0.25451
2006 7 8 53924 0.1201 0.3171 0.25528
2006 7 9 53925 0.1201 0.3159 0.25621
2006 7 10 53926 0.1200 0.3147 0.25722
2006 7 11 53927 0.1199 0.3135 0.25818
2006 7 12 53928 0.1199 0.3123 0.25896
2006 7 13 53929 0.1197 0.3112 0.25947
2006 7 14 53930 0.1196 0.3100 0.25967
2006 7 15 53931 0.1195 0.3088 0.25961
2006 7 16 53932 0.1193 0.3076 0.25944
2006 7 17 53933 0.1191 0.3064 0.25930
2006 7 18 53934 0.1189 0.3052 0.25934
2006 7 19 53935 0.1187 0.3039 0.25964
2006 7 20 53936 0.1184 0.3027 0.26025
2006 7 21 53937 0.1181 0.3015 0.26112
2006 7 22 53938 0.1178 0.3003 0.26216
2006 7 23 53939 0.1175 0.2991 0.26330
2006 7 24 53940 0.1172 0.2979 0.26441
2006 7 25 53941 0.1168 0.2967 0.26542
2006 7 26 53942 0.1164 0.2955 0.26629
2006 7 27 53943 0.1160 0.2943 0.26698
2006 7 28 53944 0.1156 0.2931 0.26751
2006 7 29 53945 0.1151 0.2919 0.26792
2006 7 30 53946 0.1147 0.2907 0.26826
2006 7 31 53947 0.1142 0.2895 0.26858
2006 8 1 53948 0.1136 0.2883 0.26893
2006 8 2 53949 0.1131 0.2871 0.26937
2006 8 3 53950 0.1125 0.2859 0.26991
2006 8 4 53951 0.1119 0.2847 0.27058
2006 8 5 53952 0.1112 0.2836 0.27135
2006 8 6 53953 0.1106 0.2824 0.27217
2006 8 7 53954 0.1099 0.2812 0.27294
2006 8 8 53955 0.1091 0.2801 0.27353
2006 8 9 53956 0.1084 0.2789 0.27381
2006 8 10 53957 0.1076 0.2778 0.27372
2006 8 11 53958 0.1068 0.2767 0.27330
2006 8 12 53959 0.1060 0.2756 0.27267
2006 8 13 53960 0.1051 0.2745 0.27203
2006 8 14 53961 0.1042 0.2734 0.27156
2006 8 15 53962 0.1033 0.2723 0.27140
2006 8 16 53963 0.1024 0.2712 0.27160
2006 8 17 53964 0.1014 0.2702 0.27212
2006 8 18 53965 0.1005 0.2691 0.27287
2006 8 19 53966 0.0994 0.2681 0.27373
2006 8 20 53967 0.0984 0.2671 0.27458
2006 8 21 53968 0.0973 0.2661 0.27533
2006 8 22 53969 0.0963 0.2651 0.27590
2006 8 23 53970 0.0951 0.2641 0.27629
2006 8 24 53971 0.0940 0.2631 0.27649
2006 8 25 53972 0.0928 0.2622 0.27654
2006 8 26 53973 0.0916 0.2613 0.27651
2006 8 27 53974 0.0904 0.2604 0.27647
2006 8 28 53975 0.0892 0.2595 0.27648
2006 8 29 53976 0.0879 0.2586 0.27662
2006 8 30 53977 0.0866 0.2577 0.27693
2006 8 31 53978 0.0853 0.2569 0.27740
2006 9 1 53979 0.0839 0.2561 0.27799
2006 9 2 53980 0.0825 0.2553 0.27864
2006 9 3 53981 0.0811 0.2545 0.27928
2006 9 4 53982 0.0797 0.2538 0.27981
2006 9 5 53983 0.0783 0.2530 0.28012
2006 9 6 53984 0.0768 0.2523 0.28004
2006 9 7 53985 0.0753 0.2516 0.27953
2006 9 8 53986 0.0738 0.2510 0.27864
2006 9 9 53987 0.0722 0.2503 0.27760
2006 9 10 53988 0.0706 0.2497 0.27661
2006 9 11 53989 0.0690 0.2491 0.27587
2006 9 12 53990 0.0674 0.2486 0.27547
2006 9 13 53991 0.0658 0.2480 0.27539
2006 9 14 53992 0.0641 0.2475 0.27555
2006 9 15 53993 0.0624 0.2470 0.27583
2006 9 16 53994 0.0607 0.2466 0.27610
2006 9 17 53995 0.0590 0.2461 0.27630
2006 9 18 53996 0.0572 0.2457 0.27640
2006 9 19 53997 0.0554 0.2453 0.27637
2006 9 20 53998 0.0537 0.2450 0.27618
2006 9 21 53999 0.0518 0.2446 0.27582
2006 9 22 54000 0.0500 0.2443 0.27530
2006 9 23 54001 0.0482 0.2441 0.27471
2006 9 24 54002 0.0463 0.2438 0.27416
2006 9 25 54003 0.0444 0.2436 0.27372
2006 9 26 54004 0.0425 0.2434 0.27337
2006 9 27 54005 0.0406 0.2433 0.27317
2006 9 28 54006 0.0386 0.2432 0.27314
2006 9 29 54007 0.0367 0.2431 0.27324
2006 9 30 54008 0.0347 0.2430 0.27346
2006 10 1 54009 0.0327 0.2430 0.27359
2006 10 2 54010 0.0307 0.2430 0.27352
2006 10 3 54011 0.0287 0.2430 0.27321
2006 10 4 54012 0.0267 0.2431 0.27262
2006 10 5 54013 0.0246 0.2432 0.27171
2006 10 6 54014 0.0226 0.2433 0.27059
2006 10 7 54015 0.0205 0.2435 0.26942
2006 10 8 54016 0.0184 0.2437 0.26840
2006 10 9 54017 0.0163 0.2439 0.26764
2006 10 10 54018 0.0142 0.2442 0.26714
2006 10 11 54019 0.0121 0.2445 0.26686
2006 10 12 54020 0.0100 0.2448 0.26670
2006 10 13 54021 0.0079 0.2452 0.26657
2006 10 14 54022 0.0058 0.2456 0.26640
2006 10 15 54023 0.0036 0.2460 0.26605
2006 10 16 54024 0.0015 0.2465 0.26552
2006 10 17 54025 -0.0007 0.2470 0.26481
2006 10 18 54026 -0.0028 0.2475 0.26387
2006 10 19 54027 -0.0050 0.2480 0.26281
2006 10 20 54028 -0.0071 0.2486 0.26171
2006 10 21 54029 -0.0093 0.2493 0.26064
2006 10 22 54030 -0.0114 0.2499 0.25961
2006 10 23 54031 -0.0136 0.2506 0.25872
2006 10 24 54032 -0.0157 0.2514 0.25800
2006 10 25 54033 -0.0179 0.2521 0.25747
2006 10 26 54034 -0.0200 0.2529 0.25710
2006 10 27 54035 -0.0222 0.2538 0.25683
2006 10 28 54036 -0.0243 0.2546 0.25663
2006 10 29 54037 -0.0265 0.2555 0.25634
2006 10 30 54038 -0.0286 0.2565 0.25581
2006 10 31 54039 -0.0307 0.2574 0.25498
2006 11 1 54040 -0.0329 0.2585 0.25384
2006 11 2 54041 -0.0350 0.2595 0.25244
2006 11 3 54042 -0.0371 0.2606 0.25092
2006 11 4 54043 -0.0392 0.2617 0.24942
2006 11 5 54044 -0.0413 0.2628 0.24816
2006 11 6 54045 -0.0434 0.2640 0.24717
2006 11 7 54046 -0.0454 0.2652 0.24646
2006 11 8 54047 -0.0475 0.2664 0.24598
2006 11 9 54048 -0.0495 0.2676 0.24567
2006 11 10 54049 -0.0515 0.2689 0.24541
2006 11 11 54050 -0.0536 0.2703 0.24511
2006 11 12 54051 -0.0555 0.2716 0.24466
2006 11 13 54052 -0.0575 0.2730 0.24407
2006 11 14 54053 -0.0595 0.2744 0.24333
2006 11 15 54054 -0.0614 0.2759 0.24247
2006 11 16 54055 -0.0634 0.2774 0.24157
2006 11 17 54056 -0.0653 0.2789 0.24071
2006 11 18 54057 -0.0671 0.2804 0.23998
2006 11 19 54058 -0.0690 0.2820 0.23945
2006 11 20 54059 -0.0708 0.2836 0.23917
2006 11 21 54060 -0.0727 0.2852 0.23920
2006 11 22 54061 -0.0745 0.2868 0.23942
2006 11 23 54062 -0.0762 0.2885 0.23977
2006 11 24 54063 -0.0780 0.2902 0.24009
2006 11 25 54064 -0.0797 0.2920 0.24030
2006 11 26 54065 -0.0814 0.2937 0.24040
2006 11 27 54066 -0.0830 0.2955 0.24030
2006 11 28 54067 -0.0847 0.2973 0.23991
2006 11 29 54068 -0.0863 0.2992 0.23922
2006 11 30 54069 -0.0879 0.3010 0.23842
2006 12 1 54070 -0.0894 0.3029 0.23765
2006 12 2 54071 -0.0909 0.3049 0.23710
2006 12 3 54072 -0.0924 0.3068 0.23676
2006 12 4 54073 -0.0939 0.3088 0.23671
2006 12 5 54074 -0.0953 0.3107 0.23686
2006 12 6 54075 -0.0967 0.3127 0.23716
2006 12 7 54076 -0.0980 0.3148 0.23750
2006 12 8 54077 -0.0994 0.3168 0.23775
2006 12 9 54078 -0.1006 0.3189 0.23785
2006 12 10 54079 -0.1019 0.3210 0.23780
2006 12 11 54080 -0.1031 0.3231 0.23763
2006 12 12 54081 -0.1043 0.3252 0.23740
2006 12 13 54082 -0.1054 0.3274 0.23716
2006 12 14 54083 -0.1065 0.3296 0.23690
2006 12 15 54084 -0.1076 0.3317 0.23666
2006 12 16 54085 -0.1086 0.3339 0.23654
2006 12 17 54086 -0.1096 0.3362 0.23660
2006 12 18 54087 -0.1105 0.3384 0.23683
2006 12 19 54088 -0.1114 0.3407 0.23716
2006 12 20 54089 -0.1123 0.3429 0.23753
2006 12 21 54090 -0.1131 0.3452 0.23786
2006 12 22 54091 -0.1139 0.3475 0.23810
2006 12 23 54092 -0.1146 0.3498 0.23816
2006 12 24 54093 -0.1153 0.3521 0.23801
2006 12 25 54094 -0.1160 0.3545 0.23753
2006 12 26 54095 -0.1166 0.3568 0.23665
2006 12 27 54096 -0.1171 0.3592 0.23547
2006 12 28 54097 -0.1177 0.3615 0.23417
2006 12 29 54098 -0.1181 0.3639 0.23287
2006 12 30 54099 -0.1186 0.3663 0.23174
2006 12 31 54100 -0.1190 0.3687 0.23092
2007 1 1 54101 -0.1193 0.3711 0.23039
2007 1 2 54102 -0.1196 0.3735 0.23005
2007 1 3 54103 -0.1199 0.3759 0.22981
2007 1 4 54104 -0.1201 0.3784 0.22955
2007 1 5 54105 -0.1202 0.3808 0.22913
2007 1 6 54106 -0.1203 0.3832 0.22857
2007 1 7 54107 -0.1204 0.3857 0.22787
2007 1 8 54108 -0.1204 0.3881 0.22704
2007 1 9 54109 -0.1204 0.3906 0.22612
2007 1 10 54110 -0.1203 0.3930 0.22515
2007 1 11 54111 -0.1202 0.3955 0.22426
2007 1 12 54112 -0.1200 0.3979 0.22351
2007 1 13 54113 -0.1198 0.4004 0.22300
2007 1 14 54114 -0.1196 0.4028 0.22276
2007 1 15 54115 -0.1193 0.4053 0.22269
2007 1 16 54116 -0.1189 0.4077 0.22271
2007 1 17 54117 -0.1185 0.4102 0.22275
2007 1 18 54118 -0.1181 0.4127 0.22274
2007 1 19 54119 -0.1176 0.4151 0.22257
2007 1 20 54120 -0.1170 0.4175 0.22218
2007 1 21 54121 -0.1165 0.4200 0.22156
2007 1 22 54122 -0.1158 0.4224 0.22070
2007 1 23 54123 -0.1151 0.4248 0.21970
2007 1 24 54124 -0.1144 0.4273 0.21865
2007 1 25 54125 -0.1137 0.4297 0.21766
2007 1 26 54126 -0.1128 0.4321 0.21700
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)
53741 -56.80 .23 -1.70 .34
53742 -57.00 .23 -1.66 .34
53743 -57.22 .19 -1.56 .34
53744 -57.40 .22 -1.50 .34
53745 -57.41 .22 -1.50 .34
53746 -57.17 .28 -1.59 .34
53747 -56.77 .28 -1.79 .34
53748 -56.39 .28 -2.05 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53741 0.145 0.091 -0.340 0.340
53742 0.134 0.091 -0.356 0.340
53743 0.118 0.076 -0.344 0.340
53744 0.102 0.088 -0.338 0.340
53745 0.095 0.088 -0.341 0.340
53746 0.101 0.111 -0.358 0.340
53747 0.109 0.111 -0.376 0.340
53748 0.123 0.111 -0.396 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
**************************************************************************
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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