**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
23 February 2006 Vol. XIX No. 008
______________________________________________________________________
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 17 53783 .06213 .00003 .38397 .00003 .310242 .000011
6 2 18 53784 .06414 .00003 .38450 .00003 .309144 .000010
6 2 19 53785 .06582 .00003 .38487 .00003 .308090 .000010
6 2 20 53786 .06688 .00003 .38482 .00003 .307134 .000010
6 2 21 53787 .06741 .00002 .38456 .00003 .306370 .000008
6 2 22 53788 .06749 .00002 .38420 .00003 .305823 .000009
6 2 23 53789 .06767 .00002 .38380 .00003 .305400 .000009
_______________________________________________________________________
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 = .0583 - .1658 cos A - .0455 sin A + .1721 cos C + .0711 sin C
y = .3602 - .0460 cos A + .1534 sin A + .0711 cos C - .1721 sin C
UT1-UTC = .2961 - .00040 (MJD - 53794) - (UT2-UT1)
where A = 2*pi*(MJD-53789)/365.25 and C = 2*pi*(MJD-53789)/435.
TAI-UTC(MJD 53790) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53789)**0.80 S t = 0.00025 (MJD-53789)**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 24 53790 0.0679 0.3835 0.30498
2006 2 25 53791 0.0683 0.3833 0.30441
2006 2 26 53792 0.0686 0.3832 0.30354
2006 2 27 53793 0.0689 0.3831 0.30229
2006 2 28 53794 0.0693 0.3830 0.30068
2006 3 1 53795 0.0697 0.3830 0.29885
2006 3 2 53796 0.0701 0.3830 0.29699
2006 3 3 53797 0.0705 0.3831 0.29530
2006 3 4 53798 0.0709 0.3831 0.29389
2006 3 5 53799 0.0713 0.3832 0.29279
2006 3 6 53800 0.0717 0.3833 0.29199
2006 3 7 53801 0.0721 0.3834 0.29142
2006 3 8 53802 0.0725 0.3835 0.29094
2006 3 9 53803 0.0730 0.3836 0.29044
2006 3 10 53804 0.0734 0.3837 0.28985
2006 3 11 53805 0.0739 0.3838 0.28910
2006 3 12 53806 0.0744 0.3839 0.28817
2006 3 13 53807 0.0748 0.3840 0.28705
2006 3 14 53808 0.0753 0.3841 0.28576
2006 3 15 53809 0.0758 0.3842 0.28435
2006 3 16 53810 0.0763 0.3843 0.28288
2006 3 17 53811 0.0768 0.3844 0.28142
2006 3 18 53812 0.0773 0.3845 0.28005
2006 3 19 53813 0.0779 0.3845 0.27885
2006 3 20 53814 0.0784 0.3846 0.27786
2006 3 21 53815 0.0789 0.3846 0.27708
2006 3 22 53816 0.0795 0.3847 0.27647
2006 3 23 53817 0.0800 0.3847 0.27594
2006 3 24 53818 0.0806 0.3847 0.27538
2006 3 25 53819 0.0811 0.3847 0.27463
2006 3 26 53820 0.0817 0.3847 0.27358
2006 3 27 53821 0.0823 0.3847 0.27220
2006 3 28 53822 0.0828 0.3847 0.27054
2006 3 29 53823 0.0834 0.3847 0.26874
2006 3 30 53824 0.0840 0.3847 0.26698
2006 3 31 53825 0.0846 0.3846 0.26544
2006 4 1 53826 0.0852 0.3846 0.26421
2006 4 2 53827 0.0858 0.3845 0.26332
2006 4 3 53828 0.0864 0.3844 0.26268
2006 4 4 53829 0.0870 0.3843 0.26221
2006 4 5 53830 0.0876 0.3843 0.26179
2006 4 6 53831 0.0883 0.3842 0.26132
2006 4 7 53832 0.0889 0.3840 0.26075
2006 4 8 53833 0.0895 0.3839 0.26002
2006 4 9 53834 0.0901 0.3838 0.25914
2006 4 10 53835 0.0908 0.3836 0.25811
2006 4 11 53836 0.0914 0.3835 0.25696
2006 4 12 53837 0.0920 0.3833 0.25576
2006 4 13 53838 0.0927 0.3831 0.25457
2006 4 14 53839 0.0933 0.3830 0.25346
2006 4 15 53840 0.0939 0.3828 0.25250
2006 4 16 53841 0.0946 0.3826 0.25172
2006 4 17 53842 0.0952 0.3823 0.25114
2006 4 18 53843 0.0959 0.3821 0.25073
2006 4 19 53844 0.0965 0.3819 0.25041
2006 4 20 53845 0.0972 0.3816 0.25007
2006 4 21 53846 0.0978 0.3814 0.24960
2006 4 22 53847 0.0984 0.3811 0.24889
2006 4 23 53848 0.0991 0.3808 0.24788
2006 4 24 53849 0.0997 0.3805 0.24657
2006 4 25 53850 0.1004 0.3802 0.24506
2006 4 26 53851 0.1010 0.3798 0.24352
2006 4 27 53852 0.1017 0.3795 0.24212
2006 4 28 53853 0.1023 0.3791 0.24100
2006 4 29 53854 0.1030 0.3788 0.24022
2006 4 30 53855 0.1036 0.3784 0.23975
2006 5 1 53856 0.1042 0.3780 0.23951
2006 5 2 53857 0.1049 0.3776 0.23939
2006 5 3 53858 0.1055 0.3771 0.23927
2006 5 4 53859 0.1061 0.3767 0.23907
2006 5 5 53860 0.1068 0.3763 0.23874
2006 5 6 53861 0.1074 0.3758 0.23827
2006 5 7 53862 0.1080 0.3753 0.23765
2006 5 8 53863 0.1086 0.3748 0.23692
2006 5 9 53864 0.1093 0.3743 0.23612
2006 5 10 53865 0.1099 0.3738 0.23532
2006 5 11 53866 0.1105 0.3733 0.23459
2006 5 12 53867 0.1111 0.3727 0.23400
2006 5 13 53868 0.1117 0.3722 0.23360
2006 5 14 53869 0.1123 0.3716 0.23341
2006 5 15 53870 0.1129 0.3710 0.23342
2006 5 16 53871 0.1134 0.3704 0.23356
2006 5 17 53872 0.1140 0.3698 0.23372
2006 5 18 53873 0.1146 0.3692 0.23380
2006 5 19 53874 0.1152 0.3685 0.23367
2006 5 20 53875 0.1157 0.3679 0.23327
2006 5 21 53876 0.1163 0.3672 0.23260
2006 5 22 53877 0.1168 0.3665 0.23174
2006 5 23 53878 0.1174 0.3658 0.23080
2006 5 24 53879 0.1179 0.3651 0.22994
2006 5 25 53880 0.1184 0.3643 0.22929
2006 5 26 53881 0.1189 0.3636 0.22895
2006 5 27 53882 0.1194 0.3628 0.22893
2006 5 28 53883 0.1199 0.3620 0.22916
2006 5 29 53884 0.1204 0.3612 0.22955
2006 5 30 53885 0.1209 0.3604 0.23000
2006 5 31 53886 0.1214 0.3596 0.23039
2006 6 1 53887 0.1219 0.3588 0.23068
2006 6 2 53888 0.1223 0.3579 0.23081
2006 6 3 53889 0.1228 0.3571 0.23079
2006 6 4 53890 0.1232 0.3562 0.23065
2006 6 5 53891 0.1236 0.3553 0.23042
2006 6 6 53892 0.1240 0.3544 0.23017
2006 6 7 53893 0.1244 0.3535 0.22996
2006 6 8 53894 0.1248 0.3526 0.22985
2006 6 9 53895 0.1252 0.3516 0.22987
2006 6 10 53896 0.1256 0.3507 0.23009
2006 6 11 53897 0.1259 0.3497 0.23051
2006 6 12 53898 0.1263 0.3487 0.23109
2006 6 13 53899 0.1266 0.3477 0.23171
2006 6 14 53900 0.1269 0.3467 0.23227
2006 6 15 53901 0.1272 0.3457 0.23264
2006 6 16 53902 0.1275 0.3446 0.23275
2006 6 17 53903 0.1278 0.3436 0.23259
2006 6 18 53904 0.1281 0.3425 0.23224
2006 6 19 53905 0.1283 0.3414 0.23180
2006 6 20 53906 0.1286 0.3404 0.23142
2006 6 21 53907 0.1288 0.3393 0.23123
2006 6 22 53908 0.1290 0.3382 0.23131
2006 6 23 53909 0.1292 0.3370 0.23169
2006 6 24 53910 0.1293 0.3359 0.23233
2006 6 25 53911 0.1295 0.3348 0.23315
2006 6 26 53912 0.1297 0.3336 0.23403
2006 6 27 53913 0.1298 0.3325 0.23487
2006 6 28 53914 0.1299 0.3313 0.23561
2006 6 29 53915 0.1300 0.3301 0.23620
2006 6 30 53916 0.1301 0.3289 0.23663
2006 7 1 53917 0.1301 0.3277 0.23692
2006 7 2 53918 0.1301 0.3265 0.23711
2006 7 3 53919 0.1302 0.3253 0.23725
2006 7 4 53920 0.1302 0.3241 0.23742
2006 7 5 53921 0.1301 0.3229 0.23768
2006 7 6 53922 0.1301 0.3216 0.23808
2006 7 7 53923 0.1301 0.3204 0.23865
2006 7 8 53924 0.1300 0.3191 0.23941
2006 7 9 53925 0.1299 0.3179 0.24033
2006 7 10 53926 0.1298 0.3166 0.24133
2006 7 11 53927 0.1296 0.3154 0.24229
2006 7 12 53928 0.1295 0.3141 0.24307
2006 7 13 53929 0.1293 0.3128 0.24357
2006 7 14 53930 0.1291 0.3115 0.24377
2006 7 15 53931 0.1289 0.3103 0.24372
2006 7 16 53932 0.1286 0.3090 0.24354
2006 7 17 53933 0.1284 0.3077 0.24340
2006 7 18 53934 0.1281 0.3064 0.24344
2006 7 19 53935 0.1278 0.3051 0.24374
2006 7 20 53936 0.1274 0.3038 0.24433
2006 7 21 53937 0.1271 0.3025 0.24518
2006 7 22 53938 0.1267 0.3012 0.24620
2006 7 23 53939 0.1263 0.2999 0.24730
2006 7 24 53940 0.1259 0.2986 0.24837
2006 7 25 53941 0.1254 0.2973 0.24933
2006 7 26 53942 0.1250 0.2960 0.25013
2006 7 27 53943 0.1245 0.2947 0.25074
2006 7 28 53944 0.1239 0.2935 0.25119
2006 7 29 53945 0.1234 0.2922 0.25151
2006 7 30 53946 0.1228 0.2909 0.25176
2006 7 31 53947 0.1222 0.2896 0.25200
2006 8 1 53948 0.1216 0.2883 0.25229
2006 8 2 53949 0.1210 0.2870 0.25270
2006 8 3 53950 0.1203 0.2858 0.25325
2006 8 4 53951 0.1196 0.2845 0.25396
2006 8 5 53952 0.1189 0.2833 0.25483
2006 8 6 53953 0.1181 0.2820 0.25579
2006 8 7 53954 0.1173 0.2808 0.25673
2006 8 8 53955 0.1165 0.2795 0.25754
2006 8 9 53956 0.1157 0.2783 0.25807
2006 8 10 53957 0.1149 0.2771 0.25825
2006 8 11 53958 0.1140 0.2759 0.25811
2006 8 12 53959 0.1131 0.2747 0.25775
2006 8 13 53960 0.1121 0.2735 0.25736
2006 8 14 53961 0.1112 0.2723 0.25711
2006 8 15 53962 0.1102 0.2712 0.25713
2006 8 16 53963 0.1092 0.2700 0.25747
2006 8 17 53964 0.1082 0.2689 0.25809
2006 8 18 53965 0.1071 0.2677 0.25891
2006 8 19 53966 0.1060 0.2666 0.25983
2006 8 20 53967 0.1049 0.2655 0.26074
2006 8 21 53968 0.1037 0.2644 0.26156
2006 8 22 53969 0.1026 0.2634 0.26223
2006 8 23 53970 0.1014 0.2623 0.26273
2006 8 24 53971 0.1001 0.2613 0.26307
2006 8 25 53972 0.0989 0.2602 0.26328
2006 8 26 53973 0.0976 0.2592 0.26341
2006 8 27 53974 0.0963 0.2582 0.26354
2006 8 28 53975 0.0950 0.2573 0.26373
2006 8 29 53976 0.0936 0.2563 0.26402
2006 8 30 53977 0.0922 0.2554 0.26445
2006 8 31 53978 0.0908 0.2545 0.26503
2006 9 1 53979 0.0894 0.2536 0.26574
2006 9 2 53980 0.0880 0.2527 0.26652
2006 9 3 53981 0.0866 0.2518 0.26729
2006 9 4 53982 0.0851 0.2510 0.26794
2006 9 5 53983 0.0836 0.2502 0.26835
2006 9 6 53984 0.0821 0.2494 0.26840
2006 9 7 53985 0.0806 0.2486 0.26808
2006 9 8 53986 0.0790 0.2479 0.26745
2006 9 9 53987 0.0774 0.2472 0.26666
2006 9 10 53988 0.0758 0.2465 0.26589
2006 9 11 53989 0.0742 0.2458 0.26531
2006 9 12 53990 0.0725 0.2451 0.26499
2006 9 13 53991 0.0708 0.2445 0.26493
2006 9 14 53992 0.0691 0.2439 0.26506
2006 9 15 53993 0.0674 0.2434 0.26526
2006 9 16 53994 0.0657 0.2428 0.26543
2006 9 17 53995 0.0639 0.2423 0.26546
2006 9 18 53996 0.0621 0.2418 0.26530
2006 9 19 53997 0.0603 0.2414 0.26493
2006 9 20 53998 0.0585 0.2409 0.26436
2006 9 21 53999 0.0566 0.2405 0.26364
2006 9 22 54000 0.0548 0.2401 0.26283
2006 9 23 54001 0.0529 0.2398 0.26200
2006 9 24 54002 0.0510 0.2395 0.26121
2006 9 25 54003 0.0490 0.2392 0.26051
2006 9 26 54004 0.0471 0.2390 0.25990
2006 9 27 54005 0.0451 0.2387 0.25941
2006 9 28 54006 0.0432 0.2385 0.25907
2006 9 29 54007 0.0412 0.2384 0.25884
2006 9 30 54008 0.0392 0.2383 0.25866
2006 10 1 54009 0.0371 0.2382 0.25845
2006 10 2 54010 0.0351 0.2381 0.25809
2006 10 3 54011 0.0330 0.2381 0.25748
2006 10 4 54012 0.0310 0.2381 0.25657
2006 10 5 54013 0.0289 0.2381 0.25537
2006 10 6 54014 0.0268 0.2382 0.25401
2006 10 7 54015 0.0247 0.2383 0.25266
2006 10 8 54016 0.0226 0.2384 0.25152
2006 10 9 54017 0.0204 0.2386 0.25063
2006 10 10 54018 0.0183 0.2388 0.25007
2006 10 11 54019 0.0162 0.2390 0.24984
2006 10 12 54020 0.0140 0.2393 0.24981
2006 10 13 54021 0.0118 0.2396 0.24980
2006 10 14 54022 0.0097 0.2399 0.24976
2006 10 15 54023 0.0075 0.2403 0.24956
2006 10 16 54024 0.0053 0.2407 0.24916
2006 10 17 54025 0.0031 0.2412 0.24859
2006 10 18 54026 0.0009 0.2416 0.24786
2006 10 19 54027 -0.0013 0.2421 0.24704
2006 10 20 54028 -0.0035 0.2427 0.24620
2006 10 21 54029 -0.0057 0.2433 0.24536
2006 10 22 54030 -0.0079 0.2439 0.24458
2006 10 23 54031 -0.0101 0.2446 0.24400
2006 10 24 54032 -0.0123 0.2452 0.24363
2006 10 25 54033 -0.0145 0.2460 0.24346
2006 10 26 54034 -0.0167 0.2467 0.24345
2006 10 27 54035 -0.0189 0.2475 0.24349
2006 10 28 54036 -0.0211 0.2483 0.24346
2006 10 29 54037 -0.0233 0.2492 0.24330
2006 10 30 54038 -0.0255 0.2501 0.24291
2006 10 31 54039 -0.0277 0.2510 0.24224
2006 11 1 54040 -0.0299 0.2520 0.24120
2006 11 2 54041 -0.0321 0.2530 0.23984
2006 11 3 54042 -0.0343 0.2541 0.23828
2006 11 4 54043 -0.0364 0.2551 0.23677
2006 11 5 54044 -0.0386 0.2562 0.23548
2006 11 6 54045 -0.0407 0.2574 0.23453
2006 11 7 54046 -0.0429 0.2586 0.23393
2006 11 8 54047 -0.0450 0.2598 0.23359
2006 11 9 54048 -0.0471 0.2610 0.23338
2006 11 10 54049 -0.0492 0.2623 0.23315
2006 11 11 54050 -0.0513 0.2636 0.23281
2006 11 12 54051 -0.0534 0.2649 0.23234
2006 11 13 54052 -0.0554 0.2663 0.23176
2006 11 14 54053 -0.0575 0.2677 0.23109
2006 11 15 54054 -0.0595 0.2692 0.23032
2006 11 16 54055 -0.0615 0.2706 0.22949
2006 11 17 54056 -0.0635 0.2721 0.22864
2006 11 18 54057 -0.0655 0.2737 0.22782
2006 11 19 54058 -0.0675 0.2753 0.22716
2006 11 20 54059 -0.0694 0.2769 0.22669
2006 11 21 54060 -0.0713 0.2785 0.22636
2006 11 22 54061 -0.0732 0.2801 0.22619
2006 11 23 54062 -0.0751 0.2818 0.22615
2006 11 24 54063 -0.0769 0.2835 0.22615
2006 11 25 54064 -0.0787 0.2853 0.22613
2006 11 26 54065 -0.0805 0.2871 0.22590
2006 11 27 54066 -0.0823 0.2889 0.22539
2006 11 28 54067 -0.0840 0.2907 0.22464
2006 11 29 54068 -0.0858 0.2926 0.22371
2006 11 30 54069 -0.0874 0.2945 0.22268
2006 12 1 54070 -0.0891 0.2964 0.22166
2006 12 2 54071 -0.0907 0.2983 0.22080
2006 12 3 54072 -0.0923 0.3003 0.22024
2006 12 4 54073 -0.0939 0.3023 0.21995
2006 12 5 54074 -0.0955 0.3043 0.21985
2006 12 6 54075 -0.0970 0.3063 0.21984
2006 12 7 54076 -0.0984 0.3084 0.21981
2006 12 8 54077 -0.0999 0.3105 0.21968
2006 12 9 54078 -0.1013 0.3126 0.21943
2006 12 10 54079 -0.1027 0.3148 0.21895
2006 12 11 54080 -0.1040 0.3169 0.21832
2006 12 12 54081 -0.1053 0.3191 0.21755
2006 12 13 54082 -0.1066 0.3213 0.21666
2006 12 14 54083 -0.1078 0.3235 0.21575
2006 12 15 54084 -0.1090 0.3258 0.21492
2006 12 16 54085 -0.1102 0.3280 0.21422
2006 12 17 54086 -0.1113 0.3303 0.21363
2006 12 18 54087 -0.1124 0.3326 0.21324
2006 12 19 54088 -0.1134 0.3349 0.21302
2006 12 20 54089 -0.1144 0.3373 0.21294
2006 12 21 54090 -0.1154 0.3396 0.21293
2006 12 22 54091 -0.1163 0.3420 0.21289
2006 12 23 54092 -0.1172 0.3444 0.21276
2006 12 24 54093 -0.1180 0.3468 0.21239
2006 12 25 54094 -0.1188 0.3492 0.21173
2006 12 26 54095 -0.1196 0.3516 0.21082
2006 12 27 54096 -0.1203 0.3541 0.20978
2006 12 28 54097 -0.1210 0.3565 0.20872
2006 12 29 54098 -0.1216 0.3590 0.20779
2006 12 30 54099 -0.1222 0.3615 0.20707
2006 12 31 54100 -0.1227 0.3640 0.20666
2007 1 1 54101 -0.1232 0.3665 0.20647
2007 1 2 54102 -0.1236 0.3690 0.20642
2007 1 3 54103 -0.1240 0.3715 0.20642
2007 1 4 54104 -0.1244 0.3740 0.20642
2007 1 5 54105 -0.1247 0.3766 0.20634
2007 1 6 54106 -0.1250 0.3791 0.20614
2007 1 7 54107 -0.1252 0.3817 0.20577
2007 1 8 54108 -0.1254 0.3842 0.20528
2007 1 9 54109 -0.1255 0.3868 0.20469
2007 1 10 54110 -0.1256 0.3894 0.20407
2007 1 11 54111 -0.1256 0.3919 0.20352
2007 1 12 54112 -0.1256 0.3945 0.20308
2007 1 13 54113 -0.1255 0.3971 0.20285
2007 1 14 54114 -0.1254 0.3997 0.20286
2007 1 15 54115 -0.1252 0.4022 0.20312
2007 1 16 54116 -0.1250 0.4048 0.20363
2007 1 17 54117 -0.1248 0.4074 0.20424
2007 1 18 54118 -0.1245 0.4100 0.20483
2007 1 19 54119 -0.1241 0.4126 0.20522
2007 1 20 54120 -0.1237 0.4151 0.20532
2007 1 21 54121 -0.1233 0.4177 0.20519
2007 1 22 54122 -0.1228 0.4203 0.20482
2007 1 23 54123 -0.1222 0.4229 0.20424
2007 1 24 54124 -0.1216 0.4254 0.20357
2007 1 25 54125 -0.1210 0.4280 0.20304
2007 1 26 54126 -0.1203 0.4305 0.20277
2007 1 27 54127 -0.1196 0.4331 0.20285
2007 1 28 54128 -0.1188 0.4356 0.20316
2007 1 29 54129 -0.1179 0.4382 0.20363
2007 1 30 54130 -0.1171 0.4407 0.20413
2007 1 31 54131 -0.1161 0.4432 0.20458
2007 2 1 54132 -0.1152 0.4457 0.20489
2007 2 2 54133 -0.1141 0.4482 0.20502
2007 2 3 54134 -0.1131 0.4507 0.20493
2007 2 4 54135 -0.1119 0.4531 0.20468
2007 2 5 54136 -0.1108 0.4556 0.20436
2007 2 6 54137 -0.1096 0.4581 0.20404
2007 2 7 54138 -0.1083 0.4605 0.20378
2007 2 8 54139 -0.1070 0.4629 0.20358
2007 2 9 54140 -0.1057 0.4653 0.20348
2007 2 10 54141 -0.1043 0.4677 0.20353
2007 2 11 54142 -0.1028 0.4701 0.20377
2007 2 12 54143 -0.1014 0.4724 0.20413
2007 2 13 54144 -0.0998 0.4748 0.20452
2007 2 14 54145 -0.0983 0.4771 0.20481
2007 2 15 54146 -0.0967 0.4794 0.20490
2007 2 16 54147 -0.0950 0.4817 0.20473
2007 2 17 54148 -0.0933 0.4839 0.20423
2007 2 18 54149 -0.0916 0.4862 0.20342
2007 2 19 54150 -0.0898 0.4884 0.20228
2007 2 20 54151 -0.0879 0.4906 0.20087
2007 2 21 54152 -0.0861 0.4928 0.19937
2007 2 22 54153 -0.0842 0.4949 0.19797
2007 2 23 54154 -0.0822 0.4970 0.19676
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)
53770 -57.03 .26 -2.31 .34
53771 -57.32 .28 -2.35 .34
53772 -57.48 .28 -2.51 .34
53773 -57.43 .36 -2.72 .34
53774 -57.17 .34 -2.88 .11
53775 -56.80 .34 -3.01 .11
53776 -56.41 .34 -3.15 .11
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53770 0.051 0.103 -0.414 0.340
53771 0.046 0.111 -0.417 0.340
53772 0.035 0.111 -0.406 0.340
53773 0.030 0.143 -0.402 0.340
53774 0.045 0.135 -0.415 0.110
53775 0.063 0.135 -0.443 0.110
53776 0.085 0.135 -0.465 0.110
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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