**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
9 February 2006 Vol. XIX No. 006
______________________________________________________________________
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 2 3 53769 .05025 .00004 .38414 .00002 .321161 .000009
6 2 4 53770 .05017 .00005 .38444 .00002 .319752 .000010
6 2 5 53771 .05037 .00004 .38449 .00002 .318630 .000012
6 2 6 53772 .05083 .00003 .38440 .00002 .317787 .000011
6 2 7 53773 .05114 .00003 .38433 .00002 .317210 .000010
6 2 8 53774 .05152 .00003 .38424 .00002 .316829 .000010
6 2 9 53775 .05251 .00003 .38412 .00002 .316506 .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 = .0486 - .1485 cos A - .0849 sin A + .1532 cos C + .1053 sin C
y = .3604 - .0827 cos A + .1376 sin A + .1053 cos C - .1532 sin C
UT1-UTC = .3068 - .00040 (MJD - 53780) - (UT2-UT1)
where A = 2*pi*(MJD-53775)/365.25 and C = 2*pi*(MJD-53775)/435.
TAI-UTC(MJD 53776) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53775)**0.80 S t = 0.00025 (MJD-53775)**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 2 10 53776 0.0536 0.3840 0.31618
2006 2 11 53777 0.0545 0.3840 0.31577
2006 2 12 53778 0.0554 0.3840 0.31519
2006 2 13 53779 0.0562 0.3841 0.31443
2006 2 14 53780 0.0569 0.3841 0.31350
2006 2 15 53781 0.0576 0.3842 0.31241
2006 2 16 53782 0.0582 0.3843 0.31121
2006 2 17 53783 0.0588 0.3845 0.30997
2006 2 18 53784 0.0593 0.3846 0.30875
2006 2 19 53785 0.0598 0.3847 0.30760
2006 2 20 53786 0.0603 0.3848 0.30659
2006 2 21 53787 0.0607 0.3849 0.30576
2006 2 22 53788 0.0611 0.3851 0.30510
2006 2 23 53789 0.0615 0.3852 0.30455
2006 2 24 53790 0.0619 0.3853 0.30401
2006 2 25 53791 0.0622 0.3854 0.30336
2006 2 26 53792 0.0626 0.3855 0.30249
2006 2 27 53793 0.0629 0.3857 0.30131
2006 2 28 53794 0.0633 0.3858 0.29983
2006 3 1 53795 0.0636 0.3859 0.29816
2006 3 2 53796 0.0639 0.3860 0.29646
2006 3 3 53797 0.0643 0.3861 0.29492
2006 3 4 53798 0.0646 0.3862 0.29367
2006 3 5 53799 0.0650 0.3863 0.29275
2006 3 6 53800 0.0653 0.3863 0.29214
2006 3 7 53801 0.0657 0.3864 0.29176
2006 3 8 53802 0.0660 0.3865 0.29149
2006 3 9 53803 0.0664 0.3866 0.29124
2006 3 10 53804 0.0668 0.3867 0.29090
2006 3 11 53805 0.0672 0.3867 0.29042
2006 3 12 53806 0.0676 0.3868 0.28976
2006 3 13 53807 0.0680 0.3868 0.28891
2006 3 14 53808 0.0684 0.3869 0.28788
2006 3 15 53809 0.0688 0.3869 0.28672
2006 3 16 53810 0.0692 0.3870 0.28550
2006 3 17 53811 0.0697 0.3870 0.28430
2006 3 18 53812 0.0701 0.3871 0.28318
2006 3 19 53813 0.0706 0.3871 0.28222
2006 3 20 53814 0.0711 0.3871 0.28144
2006 3 21 53815 0.0716 0.3871 0.28086
2006 3 22 53816 0.0720 0.3871 0.28042
2006 3 23 53817 0.0726 0.3871 0.28005
2006 3 24 53818 0.0731 0.3871 0.27962
2006 3 25 53819 0.0736 0.3871 0.27899
2006 3 26 53820 0.0741 0.3871 0.27805
2006 3 27 53821 0.0747 0.3871 0.27676
2006 3 28 53822 0.0752 0.3871 0.27517
2006 3 29 53823 0.0758 0.3870 0.27342
2006 3 30 53824 0.0764 0.3870 0.27171
2006 3 31 53825 0.0769 0.3869 0.27021
2006 4 1 53826 0.0775 0.3869 0.26902
2006 4 2 53827 0.0781 0.3868 0.26817
2006 4 3 53828 0.0787 0.3867 0.26759
2006 4 4 53829 0.0793 0.3866 0.26717
2006 4 5 53830 0.0799 0.3865 0.26682
2006 4 6 53831 0.0806 0.3864 0.26642
2006 4 7 53832 0.0812 0.3863 0.26592
2006 4 8 53833 0.0818 0.3862 0.26527
2006 4 9 53834 0.0825 0.3860 0.26446
2006 4 10 53835 0.0831 0.3859 0.26348
2006 4 11 53836 0.0838 0.3858 0.26239
2006 4 12 53837 0.0844 0.3856 0.26124
2006 4 13 53838 0.0851 0.3854 0.26009
2006 4 14 53839 0.0858 0.3852 0.25902
2006 4 15 53840 0.0864 0.3850 0.25810
2006 4 16 53841 0.0871 0.3848 0.25737
2006 4 17 53842 0.0878 0.3846 0.25685
2006 4 18 53843 0.0885 0.3844 0.25650
2006 4 19 53844 0.0892 0.3841 0.25625
2006 4 20 53845 0.0899 0.3839 0.25600
2006 4 21 53846 0.0905 0.3836 0.25562
2006 4 22 53847 0.0912 0.3834 0.25500
2006 4 23 53848 0.0919 0.3831 0.25408
2006 4 24 53849 0.0926 0.3828 0.25287
2006 4 25 53850 0.0933 0.3825 0.25147
2006 4 26 53851 0.0940 0.3821 0.25003
2006 4 27 53852 0.0947 0.3818 0.24872
2006 4 28 53853 0.0954 0.3814 0.24768
2006 4 29 53854 0.0961 0.3811 0.24697
2006 4 30 53855 0.0968 0.3807 0.24657
2006 5 1 53856 0.0975 0.3803 0.24639
2006 5 2 53857 0.0982 0.3799 0.24632
2006 5 3 53858 0.0989 0.3795 0.24625
2006 5 4 53859 0.0996 0.3791 0.24609
2006 5 5 53860 0.1003 0.3786 0.24580
2006 5 6 53861 0.1010 0.3782 0.24536
2006 5 7 53862 0.1017 0.3777 0.24476
2006 5 8 53863 0.1023 0.3772 0.24405
2006 5 9 53864 0.1030 0.3767 0.24328
2006 5 10 53865 0.1037 0.3762 0.24250
2006 5 11 53866 0.1044 0.3757 0.24180
2006 5 12 53867 0.1051 0.3751 0.24122
2006 5 13 53868 0.1057 0.3746 0.24083
2006 5 14 53869 0.1064 0.3740 0.24065
2006 5 15 53870 0.1069 0.3734 0.24066
2006 5 16 53871 0.1075 0.3728 0.24078
2006 5 17 53872 0.1082 0.3722 0.24094
2006 5 18 53873 0.1088 0.3716 0.24099
2006 5 19 53874 0.1095 0.3709 0.24083
2006 5 20 53875 0.1101 0.3702 0.24040
2006 5 21 53876 0.1107 0.3696 0.23971
2006 5 22 53877 0.1114 0.3689 0.23881
2006 5 23 53878 0.1120 0.3682 0.23783
2006 5 24 53879 0.1126 0.3674 0.23693
2006 5 25 53880 0.1132 0.3667 0.23625
2006 5 26 53881 0.1138 0.3660 0.23586
2006 5 27 53882 0.1144 0.3652 0.23579
2006 5 28 53883 0.1149 0.3644 0.23598
2006 5 29 53884 0.1155 0.3636 0.23632
2006 5 30 53885 0.1161 0.3628 0.23671
2006 5 31 53886 0.1166 0.3620 0.23705
2006 6 1 53887 0.1172 0.3611 0.23727
2006 6 2 53888 0.1177 0.3603 0.23735
2006 6 3 53889 0.1182 0.3594 0.23727
2006 6 4 53890 0.1187 0.3585 0.23708
2006 6 5 53891 0.1192 0.3576 0.23680
2006 6 6 53892 0.1197 0.3567 0.23651
2006 6 7 53893 0.1202 0.3558 0.23627
2006 6 8 53894 0.1206 0.3549 0.23613
2006 6 9 53895 0.1211 0.3539 0.23617
2006 6 10 53896 0.1215 0.3529 0.23641
2006 6 11 53897 0.1220 0.3520 0.23685
2006 6 12 53898 0.1224 0.3510 0.23745
2006 6 13 53899 0.1228 0.3499 0.23810
2006 6 14 53900 0.1232 0.3489 0.23868
2006 6 15 53901 0.1235 0.3479 0.23908
2006 6 16 53902 0.1239 0.3468 0.23922
2006 6 17 53903 0.1243 0.3458 0.23909
2006 6 18 53904 0.1246 0.3447 0.23877
2006 6 19 53905 0.1249 0.3436 0.23836
2006 6 20 53906 0.1252 0.3425 0.23802
2006 6 21 53907 0.1255 0.3414 0.23786
2006 6 22 53908 0.1258 0.3403 0.23798
2006 6 23 53909 0.1260 0.3392 0.23840
2006 6 24 53910 0.1263 0.3380 0.23907
2006 6 25 53911 0.1265 0.3369 0.23992
2006 6 26 53912 0.1267 0.3357 0.24083
2006 6 27 53913 0.1269 0.3345 0.24171
2006 6 28 53914 0.1271 0.3334 0.24248
2006 6 29 53915 0.1272 0.3322 0.24309
2006 6 30 53916 0.1274 0.3310 0.24354
2006 7 1 53917 0.1275 0.3297 0.24385
2006 7 2 53918 0.1276 0.3285 0.24405
2006 7 3 53919 0.1277 0.3273 0.24422
2006 7 4 53920 0.1277 0.3261 0.24440
2006 7 5 53921 0.1278 0.3248 0.24466
2006 7 6 53922 0.1278 0.3236 0.24506
2006 7 7 53923 0.1278 0.3223 0.24564
2006 7 8 53924 0.1278 0.3210 0.24640
2006 7 9 53925 0.1278 0.3198 0.24732
2006 7 10 53926 0.1277 0.3185 0.24832
2006 7 11 53927 0.1276 0.3172 0.24927
2006 7 12 53928 0.1275 0.3159 0.25005
2006 7 13 53929 0.1274 0.3146 0.25055
2006 7 14 53930 0.1273 0.3133 0.25074
2006 7 15 53931 0.1271 0.3120 0.25068
2006 7 16 53932 0.1269 0.3107 0.25050
2006 7 17 53933 0.1267 0.3094 0.25035
2006 7 18 53934 0.1265 0.3081 0.25038
2006 7 19 53935 0.1263 0.3068 0.25068
2006 7 20 53936 0.1260 0.3055 0.25127
2006 7 21 53937 0.1257 0.3042 0.25211
2006 7 22 53938 0.1254 0.3028 0.25314
2006 7 23 53939 0.1250 0.3015 0.25424
2006 7 24 53940 0.1247 0.3002 0.25531
2006 7 25 53941 0.1243 0.2989 0.25628
2006 7 26 53942 0.1239 0.2976 0.25709
2006 7 27 53943 0.1234 0.2963 0.25772
2006 7 28 53944 0.1230 0.2949 0.25819
2006 7 29 53945 0.1225 0.2936 0.25853
2006 7 30 53946 0.1220 0.2923 0.25880
2006 7 31 53947 0.1214 0.2910 0.25906
2006 8 1 53948 0.1209 0.2897 0.25939
2006 8 2 53949 0.1203 0.2884 0.25983
2006 8 3 53950 0.1197 0.2871 0.26042
2006 8 4 53951 0.1190 0.2859 0.26118
2006 8 5 53952 0.1184 0.2846 0.26209
2006 8 6 53953 0.1177 0.2833 0.26311
2006 8 7 53954 0.1170 0.2820 0.26412
2006 8 8 53955 0.1162 0.2808 0.26500
2006 8 9 53956 0.1155 0.2795 0.26562
2006 8 10 53957 0.1147 0.2783 0.26591
2006 8 11 53958 0.1139 0.2771 0.26589
2006 8 12 53959 0.1130 0.2758 0.26567
2006 8 13 53960 0.1121 0.2746 0.26543
2006 8 14 53961 0.1112 0.2734 0.26533
2006 8 15 53962 0.1103 0.2722 0.26549
2006 8 16 53963 0.1094 0.2711 0.26595
2006 8 17 53964 0.1084 0.2699 0.26667
2006 8 18 53965 0.1074 0.2688 0.26755
2006 8 19 53966 0.1064 0.2676 0.26848
2006 8 20 53967 0.1053 0.2665 0.26936
2006 8 21 53968 0.1042 0.2654 0.27011
2006 8 22 53969 0.1031 0.2643 0.27066
2006 8 23 53970 0.1020 0.2632 0.27099
2006 8 24 53971 0.1008 0.2622 0.27110
2006 8 25 53972 0.0996 0.2611 0.27100
2006 8 26 53973 0.0984 0.2601 0.27075
2006 8 27 53974 0.0972 0.2591 0.27043
2006 8 28 53975 0.0959 0.2581 0.27010
2006 8 29 53976 0.0946 0.2571 0.26985
2006 8 30 53977 0.0933 0.2561 0.26972
2006 8 31 53978 0.0919 0.2552 0.26974
2006 9 1 53979 0.0905 0.2543 0.26992
2006 9 2 53980 0.0891 0.2534 0.27020
2006 9 3 53981 0.0877 0.2525 0.27051
2006 9 4 53982 0.0863 0.2517 0.27072
2006 9 5 53983 0.0848 0.2508 0.27073
2006 9 6 53984 0.0833 0.2500 0.27043
2006 9 7 53985 0.0818 0.2492 0.26981
2006 9 8 53986 0.0802 0.2485 0.26894
2006 9 9 53987 0.0787 0.2477 0.26798
2006 9 10 53988 0.0771 0.2470 0.26712
2006 9 11 53989 0.0755 0.2463 0.26651
2006 9 12 53990 0.0738 0.2457 0.26623
2006 9 13 53991 0.0721 0.2450 0.26627
2006 9 14 53992 0.0705 0.2444 0.26655
2006 9 15 53993 0.0687 0.2438 0.26694
2006 9 16 53994 0.0670 0.2433 0.26734
2006 9 17 53995 0.0653 0.2427 0.26763
2006 9 18 53996 0.0635 0.2422 0.26774
2006 9 19 53997 0.0617 0.2418 0.26767
2006 9 20 53998 0.0599 0.2413 0.26740
2006 9 21 53999 0.0580 0.2409 0.26700
2006 9 22 54000 0.0562 0.2405 0.26652
2006 9 23 54001 0.0543 0.2401 0.26598
2006 9 24 54002 0.0524 0.2398 0.26545
2006 9 25 54003 0.0505 0.2395 0.26505
2006 9 26 54004 0.0486 0.2392 0.26483
2006 9 27 54005 0.0466 0.2390 0.26481
2006 9 28 54006 0.0447 0.2388 0.26495
2006 9 29 54007 0.0427 0.2386 0.26517
2006 9 30 54008 0.0407 0.2385 0.26538
2006 10 1 54009 0.0387 0.2383 0.26554
2006 10 2 54010 0.0366 0.2383 0.26550
2006 10 3 54011 0.0346 0.2382 0.26519
2006 10 4 54012 0.0325 0.2382 0.26449
2006 10 5 54013 0.0305 0.2382 0.26338
2006 10 6 54014 0.0284 0.2382 0.26196
2006 10 7 54015 0.0263 0.2383 0.26048
2006 10 8 54016 0.0242 0.2384 0.25915
2006 10 9 54017 0.0220 0.2386 0.25812
2006 10 10 54018 0.0199 0.2388 0.25746
2006 10 11 54019 0.0178 0.2390 0.25710
2006 10 12 54020 0.0156 0.2392 0.25694
2006 10 13 54021 0.0135 0.2395 0.25683
2006 10 14 54022 0.0113 0.2398 0.25665
2006 10 15 54023 0.0091 0.2402 0.25636
2006 10 16 54024 0.0069 0.2406 0.25596
2006 10 17 54025 0.0048 0.2410 0.25543
2006 10 18 54026 0.0026 0.2415 0.25477
2006 10 19 54027 0.0004 0.2419 0.25399
2006 10 20 54028 -0.0018 0.2425 0.25312
2006 10 21 54029 -0.0040 0.2430 0.25222
2006 10 22 54030 -0.0062 0.2436 0.25144
2006 10 23 54031 -0.0085 0.2443 0.25081
2006 10 24 54032 -0.0107 0.2449 0.25030
2006 10 25 54033 -0.0129 0.2456 0.24996
2006 10 26 54034 -0.0151 0.2464 0.24978
2006 10 27 54035 -0.0173 0.2471 0.24970
2006 10 28 54036 -0.0195 0.2479 0.24967
2006 10 29 54037 -0.0217 0.2488 0.24949
2006 10 30 54038 -0.0239 0.2497 0.24907
2006 10 31 54039 -0.0261 0.2506 0.24840
2006 11 1 54040 -0.0283 0.2515 0.24747
2006 11 2 54041 -0.0305 0.2525 0.24631
2006 11 3 54042 -0.0327 0.2535 0.24505
2006 11 4 54043 -0.0348 0.2545 0.24384
2006 11 5 54044 -0.0370 0.2556 0.24288
2006 11 6 54045 -0.0392 0.2567 0.24219
2006 11 7 54046 -0.0413 0.2579 0.24175
2006 11 8 54047 -0.0435 0.2591 0.24148
2006 11 9 54048 -0.0456 0.2603 0.24127
2006 11 10 54049 -0.0477 0.2616 0.24103
2006 11 11 54050 -0.0498 0.2628 0.24070
2006 11 12 54051 -0.0519 0.2642 0.24017
2006 11 13 54052 -0.0540 0.2655 0.23946
2006 11 14 54053 -0.0560 0.2669 0.23860
2006 11 15 54054 -0.0581 0.2683 0.23756
2006 11 16 54055 -0.0601 0.2698 0.23645
2006 11 17 54056 -0.0621 0.2712 0.23537
2006 11 18 54057 -0.0641 0.2727 0.23438
2006 11 19 54058 -0.0661 0.2743 0.23347
2006 11 20 54059 -0.0681 0.2759 0.23274
2006 11 21 54060 -0.0700 0.2775 0.23220
2006 11 22 54061 -0.0719 0.2791 0.23184
2006 11 23 54062 -0.0738 0.2808 0.23161
2006 11 24 54063 -0.0757 0.2825 0.23143
2006 11 25 54064 -0.0775 0.2842 0.23124
2006 11 26 54065 -0.0794 0.2859 0.23089
2006 11 27 54066 -0.0812 0.2877 0.23027
2006 11 28 54067 -0.0829 0.2895 0.22936
2006 11 29 54068 -0.0847 0.2914 0.22822
2006 11 30 54069 -0.0864 0.2932 0.22694
2006 12 1 54070 -0.0881 0.2951 0.22567
2006 12 2 54071 -0.0898 0.2970 0.22452
2006 12 3 54072 -0.0914 0.2990 0.22366
2006 12 4 54073 -0.0930 0.3010 0.22307
2006 12 5 54074 -0.0946 0.3029 0.22270
2006 12 6 54075 -0.0961 0.3050 0.22248
2006 12 7 54076 -0.0976 0.3070 0.22235
2006 12 8 54077 -0.0991 0.3091 0.22220
2006 12 9 54078 -0.1006 0.3112 0.22198
2006 12 10 54079 -0.1020 0.3133 0.22159
2006 12 11 54080 -0.1034 0.3154 0.22107
2006 12 12 54081 -0.1047 0.3176 0.22042
2006 12 13 54082 -0.1060 0.3198 0.21971
2006 12 14 54083 -0.1073 0.3220 0.21901
2006 12 15 54084 -0.1086 0.3242 0.21839
2006 12 16 54085 -0.1098 0.3264 0.21796
2006 12 17 54086 -0.1109 0.3287 0.21775
2006 12 18 54087 -0.1120 0.3310 0.21781
2006 12 19 54088 -0.1131 0.3333 0.21816
2006 12 20 54089 -0.1142 0.3356 0.21866
2006 12 21 54090 -0.1152 0.3379 0.21924
2006 12 22 54091 -0.1162 0.3403 0.21969
2006 12 23 54092 -0.1171 0.3427 0.21996
2006 12 24 54093 -0.1180 0.3451 0.22005
2006 12 25 54094 -0.1188 0.3475 0.21991
2006 12 26 54095 -0.1196 0.3499 0.21951
2006 12 27 54096 -0.1204 0.3523 0.21892
2006 12 28 54097 -0.1211 0.3547 0.21833
2006 12 29 54098 -0.1218 0.3572 0.21792
2006 12 30 54099 -0.1224 0.3597 0.21779
2006 12 31 54100 -0.1230 0.3621 0.21790
2007 1 1 54101 -0.1235 0.3646 0.21825
2007 1 2 54102 -0.1240 0.3671 0.21872
2007 1 3 54103 -0.1245 0.3696 0.21924
2007 1 4 54104 -0.1249 0.3722 0.21971
2007 1 5 54105 -0.1253 0.3747 0.22003
2007 1 6 54106 -0.1256 0.3772 0.22015
2007 1 7 54107 -0.1258 0.3798 0.22012
2007 1 8 54108 -0.1261 0.3823 0.21998
2007 1 9 54109 -0.1262 0.3849 0.21981
2007 1 10 54110 -0.1264 0.3874 0.21967
2007 1 11 54111 -0.1265 0.3900 0.21954
2007 1 12 54112 -0.1265 0.3926 0.21949
2007 1 13 54113 -0.1265 0.3951 0.21957
2007 1 14 54114 -0.1264 0.3977 0.21985
2007 1 15 54115 -0.1263 0.4003 0.22027
2007 1 16 54116 -0.1261 0.4029 0.22077
2007 1 17 54117 -0.1259 0.4055 0.22124
2007 1 18 54118 -0.1257 0.4080 0.22159
2007 1 19 54119 -0.1254 0.4106 0.22176
2007 1 20 54120 -0.1250 0.4132 0.22166
2007 1 21 54121 -0.1246 0.4158 0.22129
2007 1 22 54122 -0.1242 0.4183 0.22058
2007 1 23 54123 -0.1237 0.4209 0.21952
2007 1 24 54124 -0.1232 0.4235 0.21827
2007 1 25 54125 -0.1226 0.4260 0.21701
2007 1 26 54126 -0.1219 0.4286 0.21587
2007 1 27 54127 -0.1212 0.4312 0.21495
2007 1 28 54128 -0.1205 0.4337 0.21432
2007 1 29 54129 -0.1197 0.4362 0.21391
2007 1 30 54130 -0.1189 0.4388 0.21360
2007 1 31 54131 -0.1180 0.4413 0.21329
2007 2 1 54132 -0.1171 0.4438 0.21287
2007 2 2 54133 -0.1161 0.4463 0.21226
2007 2 3 54134 -0.1151 0.4488 0.21149
2007 2 4 54135 -0.1140 0.4513 0.21058
2007 2 5 54136 -0.1129 0.4538 0.20956
2007 2 6 54137 -0.1117 0.4562 0.20848
2007 2 7 54138 -0.1105 0.4587 0.20740
2007 2 8 54139 -0.1092 0.4611 0.20643
2007 2 9 54140 -0.1079 0.4635 0.20564
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)
53756 -55.50 .15 -1.30 .34
53757 -55.91 .18 -1.49 .18
53758 -56.38 .18 -1.88 .18
53759 -56.67 .14 -2.22 .24
53760 -56.76 .21 -2.32 .17
53761 -56.88 .21 -2.29 .17
53762 -57.11 .21 -2.37 .17
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53756 0.053 0.060 -0.334 0.340
53757 0.022 0.072 -0.373 0.180
53758 0.020 0.072 -0.405 0.180
53759 0.038 0.056 -0.402 0.240
53760 0.057 0.084 -0.393 0.170
53761 0.073 0.084 -0.411 0.170
53762 0.091 0.084 -0.426 0.170
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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