**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
9 March 2006 Vol. XIX No. 010
______________________________________________________________________
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 3 3 53797 .07498 .00005 .38308 .00006 .295165 .000008
6 3 4 53798 .07689 .00005 .38307 .00006 .293594 .000008
6 3 5 53799 .07877 .00004 .38323 .00005 .292336 .000008
6 3 6 53800 .08002 .00003 .38335 .00004 .291409 .000008
6 3 7 53801 .08082 .00003 .38318 .00004 .290757 .000008
6 3 8 53802 .08126 .00002 .38273 .00003 .290274 .000010
6 3 9 53803 .08133 .00002 .38234 .00003 .289889 .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 = .0601 - .1693 cos A + .0021 sin A + .1844 cos C + .0281 sin C
y = .3589 - .0022 cos A + .1578 sin A + .0281 cos C - .1844 sin C
UT1-UTC = .2879 - .00040 (MJD - 53808) - (UT2-UT1)
where A = 2*pi*(MJD-53803)/365.25 and C = 2*pi*(MJD-53803)/435.
TAI-UTC(MJD 53804) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53803)**0.80 S t = 0.00025 (MJD-53803)**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 3 10 53804 0.0813 0.3821 0.28951
2006 3 11 53805 0.0813 0.3820 0.28900
2006 3 12 53806 0.0815 0.3819 0.28831
2006 3 13 53807 0.0817 0.3818 0.28747
2006 3 14 53808 0.0820 0.3817 0.28649
2006 3 15 53809 0.0823 0.3817 0.28538
2006 3 16 53810 0.0827 0.3817 0.28419
2006 3 17 53811 0.0831 0.3816 0.28299
2006 3 18 53812 0.0836 0.3816 0.28181
2006 3 19 53813 0.0841 0.3816 0.28068
2006 3 20 53814 0.0846 0.3815 0.27968
2006 3 21 53815 0.0851 0.3815 0.27883
2006 3 22 53816 0.0857 0.3814 0.27811
2006 3 23 53817 0.0863 0.3813 0.27746
2006 3 24 53818 0.0869 0.3813 0.27678
2006 3 25 53819 0.0875 0.3812 0.27590
2006 3 26 53820 0.0881 0.3811 0.27471
2006 3 27 53821 0.0888 0.3810 0.27318
2006 3 28 53822 0.0894 0.3809 0.27136
2006 3 29 53823 0.0901 0.3808 0.26939
2006 3 30 53824 0.0907 0.3807 0.26744
2006 3 31 53825 0.0914 0.3805 0.26569
2006 4 1 53826 0.0920 0.3804 0.26425
2006 4 2 53827 0.0927 0.3803 0.26314
2006 4 3 53828 0.0933 0.3801 0.26229
2006 4 4 53829 0.0940 0.3799 0.26160
2006 4 5 53830 0.0946 0.3797 0.26097
2006 4 6 53831 0.0953 0.3796 0.26029
2006 4 7 53832 0.0959 0.3794 0.25949
2006 4 8 53833 0.0965 0.3792 0.25855
2006 4 9 53834 0.0972 0.3789 0.25745
2006 4 10 53835 0.0978 0.3787 0.25623
2006 4 11 53836 0.0985 0.3785 0.25490
2006 4 12 53837 0.0991 0.3782 0.25353
2006 4 13 53838 0.0997 0.3780 0.25219
2006 4 14 53839 0.1003 0.3777 0.25094
2006 4 15 53840 0.1010 0.3774 0.24985
2006 4 16 53841 0.1016 0.3772 0.24896
2006 4 17 53842 0.1022 0.3769 0.24828
2006 4 18 53843 0.1028 0.3765 0.24778
2006 4 19 53844 0.1034 0.3762 0.24739
2006 4 20 53845 0.1040 0.3759 0.24700
2006 4 21 53846 0.1046 0.3756 0.24647
2006 4 22 53847 0.1052 0.3752 0.24570
2006 4 23 53848 0.1057 0.3748 0.24463
2006 4 24 53849 0.1063 0.3745 0.24326
2006 4 25 53850 0.1069 0.3741 0.24169
2006 4 26 53851 0.1075 0.3737 0.24007
2006 4 27 53852 0.1080 0.3733 0.23859
2006 4 28 53853 0.1086 0.3729 0.23739
2006 4 29 53854 0.1091 0.3724 0.23653
2006 4 30 53855 0.1097 0.3720 0.23599
2006 5 1 53856 0.1102 0.3715 0.23568
2006 5 2 53857 0.1108 0.3711 0.23550
2006 5 3 53858 0.1113 0.3706 0.23533
2006 5 4 53859 0.1118 0.3701 0.23509
2006 5 5 53860 0.1123 0.3696 0.23471
2006 5 6 53861 0.1129 0.3691 0.23419
2006 5 7 53862 0.1134 0.3686 0.23351
2006 5 8 53863 0.1139 0.3680 0.23272
2006 5 9 53864 0.1144 0.3675 0.23185
2006 5 10 53865 0.1148 0.3669 0.23098
2006 5 11 53866 0.1153 0.3664 0.23016
2006 5 12 53867 0.1158 0.3658 0.22948
2006 5 13 53868 0.1163 0.3652 0.22899
2006 5 14 53869 0.1167 0.3646 0.22870
2006 5 15 53870 0.1172 0.3639 0.22861
2006 5 16 53871 0.1176 0.3633 0.22865
2006 5 17 53872 0.1181 0.3626 0.22871
2006 5 18 53873 0.1186 0.3620 0.22869
2006 5 19 53874 0.1190 0.3613 0.22848
2006 5 20 53875 0.1194 0.3606 0.22800
2006 5 21 53876 0.1199 0.3599 0.22727
2006 5 22 53877 0.1203 0.3592 0.22634
2006 5 23 53878 0.1206 0.3585 0.22534
2006 5 24 53879 0.1210 0.3577 0.22443
2006 5 25 53880 0.1214 0.3570 0.22375
2006 5 26 53881 0.1218 0.3562 0.22336
2006 5 27 53882 0.1221 0.3555 0.22330
2006 5 28 53883 0.1225 0.3547 0.22351
2006 5 29 53884 0.1228 0.3539 0.22387
2006 5 30 53885 0.1232 0.3531 0.22429
2006 5 31 53886 0.1235 0.3522 0.22466
2006 6 1 53887 0.1238 0.3514 0.22491
2006 6 2 53888 0.1241 0.3505 0.22502
2006 6 3 53889 0.1244 0.3497 0.22499
2006 6 4 53890 0.1247 0.3488 0.22483
2006 6 5 53891 0.1250 0.3479 0.22460
2006 6 6 53892 0.1253 0.3470 0.22435
2006 6 7 53893 0.1255 0.3461 0.22415
2006 6 8 53894 0.1258 0.3452 0.22405
2006 6 9 53895 0.1260 0.3442 0.22413
2006 6 10 53896 0.1263 0.3433 0.22440
2006 6 11 53897 0.1265 0.3423 0.22486
2006 6 12 53898 0.1267 0.3414 0.22548
2006 6 13 53899 0.1269 0.3404 0.22614
2006 6 14 53900 0.1271 0.3394 0.22674
2006 6 15 53901 0.1272 0.3384 0.22714
2006 6 16 53902 0.1274 0.3374 0.22728
2006 6 17 53903 0.1275 0.3363 0.22716
2006 6 18 53904 0.1277 0.3353 0.22684
2006 6 19 53905 0.1278 0.3343 0.22644
2006 6 20 53906 0.1279 0.3332 0.22611
2006 6 21 53907 0.1280 0.3321 0.22597
2006 6 22 53908 0.1281 0.3311 0.22611
2006 6 23 53909 0.1281 0.3300 0.22649
2006 6 24 53910 0.1282 0.3289 0.22713
2006 6 25 53911 0.1282 0.3278 0.22794
2006 6 26 53912 0.1283 0.3267 0.22882
2006 6 27 53913 0.1283 0.3256 0.22966
2006 6 28 53914 0.1283 0.3244 0.23040
2006 6 29 53915 0.1282 0.3233 0.23098
2006 6 30 53916 0.1282 0.3221 0.23140
2006 7 1 53917 0.1281 0.3210 0.23168
2006 7 2 53918 0.1281 0.3198 0.23186
2006 7 3 53919 0.1280 0.3187 0.23200
2006 7 4 53920 0.1279 0.3175 0.23216
2006 7 5 53921 0.1278 0.3163 0.23240
2006 7 6 53922 0.1276 0.3151 0.23279
2006 7 7 53923 0.1275 0.3140 0.23334
2006 7 8 53924 0.1273 0.3128 0.23409
2006 7 9 53925 0.1271 0.3116 0.23499
2006 7 10 53926 0.1269 0.3104 0.23597
2006 7 11 53927 0.1267 0.3092 0.23690
2006 7 12 53928 0.1265 0.3080 0.23765
2006 7 13 53929 0.1262 0.3067 0.23813
2006 7 14 53930 0.1259 0.3055 0.23830
2006 7 15 53931 0.1256 0.3043 0.23822
2006 7 16 53932 0.1253 0.3031 0.23801
2006 7 17 53933 0.1249 0.3019 0.23784
2006 7 18 53934 0.1246 0.3006 0.23784
2006 7 19 53935 0.1242 0.2994 0.23810
2006 7 20 53936 0.1238 0.2982 0.23866
2006 7 21 53937 0.1234 0.2970 0.23947
2006 7 22 53938 0.1229 0.2957 0.24046
2006 7 23 53939 0.1225 0.2945 0.24152
2006 7 24 53940 0.1220 0.2933 0.24256
2006 7 25 53941 0.1215 0.2921 0.24349
2006 7 26 53942 0.1209 0.2908 0.24426
2006 7 27 53943 0.1204 0.2896 0.24485
2006 7 28 53944 0.1198 0.2884 0.24528
2006 7 29 53945 0.1192 0.2872 0.24557
2006 7 30 53946 0.1186 0.2860 0.24580
2006 7 31 53947 0.1179 0.2848 0.24603
2006 8 1 53948 0.1173 0.2836 0.24631
2006 8 2 53949 0.1166 0.2824 0.24670
2006 8 3 53950 0.1159 0.2812 0.24725
2006 8 4 53951 0.1151 0.2800 0.24796
2006 8 5 53952 0.1143 0.2789 0.24882
2006 8 6 53953 0.1136 0.2777 0.24977
2006 8 7 53954 0.1127 0.2765 0.25072
2006 8 8 53955 0.1119 0.2754 0.25152
2006 8 9 53956 0.1110 0.2742 0.25204
2006 8 10 53957 0.1102 0.2731 0.25222
2006 8 11 53958 0.1092 0.2720 0.25208
2006 8 12 53959 0.1083 0.2709 0.25172
2006 8 13 53960 0.1073 0.2698 0.25132
2006 8 14 53961 0.1063 0.2687 0.25106
2006 8 15 53962 0.1053 0.2676 0.25106
2006 8 16 53963 0.1043 0.2665 0.25137
2006 8 17 53964 0.1032 0.2655 0.25196
2006 8 18 53965 0.1021 0.2644 0.25275
2006 8 19 53966 0.1010 0.2634 0.25361
2006 8 20 53967 0.0999 0.2624 0.25446
2006 8 21 53968 0.0987 0.2614 0.25521
2006 8 22 53969 0.0975 0.2604 0.25579
2006 8 23 53970 0.0963 0.2594 0.25618
2006 8 24 53971 0.0950 0.2585 0.25638
2006 8 25 53972 0.0938 0.2576 0.25644
2006 8 26 53973 0.0925 0.2566 0.25639
2006 8 27 53974 0.0911 0.2557 0.25631
2006 8 28 53975 0.0898 0.2549 0.25627
2006 8 29 53976 0.0884 0.2540 0.25633
2006 8 30 53977 0.0870 0.2532 0.25652
2006 8 31 53978 0.0856 0.2523 0.25687
2006 9 1 53979 0.0841 0.2515 0.25737
2006 9 2 53980 0.0827 0.2508 0.25799
2006 9 3 53981 0.0812 0.2500 0.25863
2006 9 4 53982 0.0796 0.2493 0.25919
2006 9 5 53983 0.0781 0.2485 0.25954
2006 9 6 53984 0.0765 0.2478 0.25957
2006 9 7 53985 0.0749 0.2472 0.25925
2006 9 8 53986 0.0733 0.2465 0.25865
2006 9 9 53987 0.0717 0.2459 0.25794
2006 9 10 53988 0.0700 0.2453 0.25731
2006 9 11 53989 0.0683 0.2447 0.25693
2006 9 12 53990 0.0666 0.2442 0.25689
2006 9 13 53991 0.0648 0.2437 0.25720
2006 9 14 53992 0.0631 0.2432 0.25775
2006 9 15 53993 0.0613 0.2427 0.25842
2006 9 16 53994 0.0595 0.2422 0.25907
2006 9 17 53995 0.0578 0.2418 0.25960
2006 9 18 53996 0.0560 0.2414 0.25994
2006 9 19 53997 0.0542 0.2411 0.26004
2006 9 20 53998 0.0523 0.2407 0.25992
2006 9 21 53999 0.0505 0.2404 0.25959
2006 9 22 54000 0.0486 0.2401 0.25912
2006 9 23 54001 0.0467 0.2399 0.25860
2006 9 24 54002 0.0448 0.2396 0.25810
2006 9 25 54003 0.0429 0.2395 0.25771
2006 9 26 54004 0.0409 0.2393 0.25748
2006 9 27 54005 0.0390 0.2392 0.25744
2006 9 28 54006 0.0370 0.2391 0.25758
2006 9 29 54007 0.0350 0.2390 0.25786
2006 9 30 54008 0.0330 0.2390 0.25818
2006 10 1 54009 0.0309 0.2390 0.25843
2006 10 2 54010 0.0289 0.2390 0.25846
2006 10 3 54011 0.0268 0.2390 0.25815
2006 10 4 54012 0.0248 0.2391 0.25744
2006 10 5 54013 0.0227 0.2393 0.25635
2006 10 6 54014 0.0206 0.2394 0.25500
2006 10 7 54015 0.0185 0.2396 0.25357
2006 10 8 54016 0.0163 0.2398 0.25226
2006 10 9 54017 0.0142 0.2401 0.25122
2006 10 10 54018 0.0121 0.2404 0.25047
2006 10 11 54019 0.0099 0.2407 0.25000
2006 10 12 54020 0.0078 0.2411 0.24971
2006 10 13 54021 0.0056 0.2415 0.24942
2006 10 14 54022 0.0034 0.2419 0.24904
2006 10 15 54023 0.0013 0.2424 0.24849
2006 10 16 54024 -0.0009 0.2429 0.24773
2006 10 17 54025 -0.0031 0.2434 0.24678
2006 10 18 54026 -0.0053 0.2440 0.24572
2006 10 19 54027 -0.0075 0.2446 0.24458
2006 10 20 54028 -0.0097 0.2452 0.24344
2006 10 21 54029 -0.0119 0.2459 0.24236
2006 10 22 54030 -0.0141 0.2466 0.24138
2006 10 23 54031 -0.0163 0.2473 0.24049
2006 10 24 54032 -0.0185 0.2481 0.23971
2006 10 25 54033 -0.0207 0.2489 0.23907
2006 10 26 54034 -0.0229 0.2498 0.23857
2006 10 27 54035 -0.0251 0.2507 0.23816
2006 10 28 54036 -0.0273 0.2516 0.23772
2006 10 29 54037 -0.0295 0.2525 0.23721
2006 10 30 54038 -0.0317 0.2535 0.23650
2006 10 31 54039 -0.0338 0.2545 0.23553
2006 11 1 54040 -0.0360 0.2556 0.23428
2006 11 2 54041 -0.0382 0.2567 0.23283
2006 11 3 54042 -0.0403 0.2578 0.23133
2006 11 4 54043 -0.0425 0.2590 0.22994
2006 11 5 54044 -0.0446 0.2602 0.22885
2006 11 6 54045 -0.0467 0.2614 0.22803
2006 11 7 54046 -0.0488 0.2627 0.22754
2006 11 8 54047 -0.0509 0.2640 0.22733
2006 11 9 54048 -0.0530 0.2653 0.22724
2006 11 10 54049 -0.0551 0.2666 0.22712
2006 11 11 54050 -0.0572 0.2680 0.22691
2006 11 12 54051 -0.0592 0.2695 0.22654
2006 11 13 54052 -0.0612 0.2709 0.22596
2006 11 14 54053 -0.0632 0.2724 0.22524
2006 11 15 54054 -0.0652 0.2739 0.22440
2006 11 16 54055 -0.0672 0.2755 0.22354
2006 11 17 54056 -0.0691 0.2771 0.22272
2006 11 18 54057 -0.0711 0.2787 0.22195
2006 11 19 54058 -0.0730 0.2803 0.22130
2006 11 20 54059 -0.0748 0.2820 0.22088
2006 11 21 54060 -0.0767 0.2837 0.22068
2006 11 22 54061 -0.0785 0.2855 0.22069
2006 11 23 54062 -0.0803 0.2872 0.22082
2006 11 24 54063 -0.0821 0.2890 0.22094
2006 11 25 54064 -0.0839 0.2908 0.22092
2006 11 26 54065 -0.0856 0.2927 0.22071
2006 11 27 54066 -0.0873 0.2946 0.22023
2006 11 28 54067 -0.0890 0.2965 0.21948
2006 11 29 54068 -0.0906 0.2984 0.21845
2006 11 30 54069 -0.0922 0.3003 0.21721
2006 12 1 54070 -0.0938 0.3023 0.21589
2006 12 2 54071 -0.0954 0.3043 0.21473
2006 12 3 54072 -0.0969 0.3064 0.21384
2006 12 4 54073 -0.0984 0.3084 0.21329
2006 12 5 54074 -0.0998 0.3105 0.21304
2006 12 6 54075 -0.1012 0.3126 0.21295
2006 12 7 54076 -0.1026 0.3147 0.21292
2006 12 8 54077 -0.1040 0.3169 0.21281
2006 12 9 54078 -0.1053 0.3191 0.21254
2006 12 10 54079 -0.1066 0.3213 0.21213
2006 12 11 54080 -0.1078 0.3235 0.21162
2006 12 12 54081 -0.1090 0.3257 0.21104
2006 12 13 54082 -0.1101 0.3280 0.21042
2006 12 14 54083 -0.1113 0.3302 0.20979
2006 12 15 54084 -0.1123 0.3325 0.20918
2006 12 16 54085 -0.1134 0.3348 0.20866
2006 12 17 54086 -0.1144 0.3372 0.20832
2006 12 18 54087 -0.1153 0.3395 0.20818
2006 12 19 54088 -0.1162 0.3419 0.20818
2006 12 20 54089 -0.1171 0.3442 0.20829
2006 12 21 54090 -0.1179 0.3466 0.20847
2006 12 22 54091 -0.1187 0.3490 0.20862
2006 12 23 54092 -0.1194 0.3514 0.20865
2006 12 24 54093 -0.1201 0.3539 0.20841
2006 12 25 54094 -0.1208 0.3563 0.20785
2006 12 26 54095 -0.1214 0.3588 0.20710
2006 12 27 54096 -0.1220 0.3613 0.20627
2006 12 28 54097 -0.1225 0.3637 0.20545
2006 12 29 54098 -0.1229 0.3662 0.20478
2006 12 30 54099 -0.1233 0.3687 0.20436
2006 12 31 54100 -0.1237 0.3712 0.20424
2007 1 1 54101 -0.1240 0.3737 0.20435
2007 1 2 54102 -0.1243 0.3763 0.20457
2007 1 3 54103 -0.1246 0.3788 0.20478
2007 1 4 54104 -0.1247 0.3813 0.20488
2007 1 5 54105 -0.1249 0.3839 0.20482
2007 1 6 54106 -0.1250 0.3864 0.20459
2007 1 7 54107 -0.1250 0.3890 0.20413
2007 1 8 54108 -0.1250 0.3915 0.20353
2007 1 9 54109 -0.1249 0.3941 0.20282
2007 1 10 54110 -0.1248 0.3966 0.20202
2007 1 11 54111 -0.1247 0.3992 0.20126
2007 1 12 54112 -0.1245 0.4018 0.20061
2007 1 13 54113 -0.1242 0.4043 0.20011
2007 1 14 54114 -0.1239 0.4069 0.19974
2007 1 15 54115 -0.1235 0.4095 0.19955
2007 1 16 54116 -0.1231 0.4120 0.19949
2007 1 17 54117 -0.1227 0.4146 0.19951
2007 1 18 54118 -0.1222 0.4171 0.19952
2007 1 19 54119 -0.1216 0.4197 0.19941
2007 1 20 54120 -0.1210 0.4222 0.19912
2007 1 21 54121 -0.1204 0.4248 0.19853
2007 1 22 54122 -0.1197 0.4273 0.19764
2007 1 23 54123 -0.1190 0.4298 0.19655
2007 1 24 54124 -0.1182 0.4324 0.19543
2007 1 25 54125 -0.1173 0.4349 0.19442
2007 1 26 54126 -0.1164 0.4374 0.19365
2007 1 27 54127 -0.1155 0.4399 0.19313
2007 1 28 54128 -0.1145 0.4424 0.19292
2007 1 29 54129 -0.1135 0.4448 0.19285
2007 1 30 54130 -0.1124 0.4473 0.19283
2007 1 31 54131 -0.1113 0.4498 0.19276
2007 2 1 54132 -0.1101 0.4522 0.19261
2007 2 2 54133 -0.1089 0.4546 0.19233
2007 2 3 54134 -0.1076 0.4570 0.19192
2007 2 4 54135 -0.1063 0.4594 0.19134
2007 2 5 54136 -0.1049 0.4618 0.19065
2007 2 6 54137 -0.1035 0.4642 0.18991
2007 2 7 54138 -0.1020 0.4665 0.18918
2007 2 8 54139 -0.1005 0.4689 0.18855
2007 2 9 54140 -0.0990 0.4712 0.18807
2007 2 10 54141 -0.0974 0.4735 0.18781
2007 2 11 54142 -0.0958 0.4758 0.18778
2007 2 12 54143 -0.0941 0.4780 0.18798
2007 2 13 54144 -0.0924 0.4803 0.18838
2007 2 14 54145 -0.0906 0.4825 0.18881
2007 2 15 54146 -0.0888 0.4847 0.18915
2007 2 16 54147 -0.0870 0.4869 0.18919
2007 2 17 54148 -0.0851 0.4890 0.18888
2007 2 18 54149 -0.0832 0.4912 0.18831
2007 2 19 54150 -0.0812 0.4933 0.18752
2007 2 20 54151 -0.0792 0.4954 0.18659
2007 2 21 54152 -0.0772 0.4974 0.18567
2007 2 22 54153 -0.0751 0.4995 0.18500
2007 2 23 54154 -0.0730 0.5015 0.18467
2007 2 24 54155 -0.0708 0.5034 0.18469
2007 2 25 54156 -0.0686 0.5054 0.18492
2007 2 26 54157 -0.0664 0.5073 0.18523
2007 2 27 54158 -0.0641 0.5092 0.18548
2007 2 28 54159 -0.0618 0.5111 0.18561
2007 3 1 54160 -0.0595 0.5129 0.18556
2007 3 2 54161 -0.0571 0.5147 0.18530
2007 3 3 54162 -0.0547 0.5165 0.18484
2007 3 4 54163 -0.0523 0.5183 0.18425
2007 3 5 54164 -0.0498 0.5200 0.18362
2007 3 6 54165 -0.0473 0.5217 0.18305
2007 3 7 54166 -0.0448 0.5233 0.18259
2007 3 8 54167 -0.0422 0.5249 0.18222
2007 3 9 54168 -0.0397 0.5265 0.18198
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)
53784 -55.50 .16 -2.58 .34
53785 -55.69 .14 -2.86 .34
53786 -55.85 .14 -3.28 .34
53787 -55.83 .74 -3.63 .14
53788 -55.73 .74 -3.71 .12
53789 -55.81 .74 -3.62 .12
53790 -56.11 .74 -3.67 .12
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53784 0.073 0.064 -0.390 0.340
53785 0.065 0.056 -0.420 0.340
53786 0.080 0.056 -0.442 0.340
53787 0.113 0.294 -0.430 0.140
53788 0.125 0.294 -0.412 0.120
53789 0.116 0.294 -0.436 0.120
53790 0.129 0.294 -0.493 0.120
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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