**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
4 May 2006 Vol. XIX No. 018
______________________________________________________________________
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
= +0.2 seconds beginning 27 April 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* No leap second will be introduced into UTC on June 30, 2006. *
* Last positive leap second was introduced in UTC on 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 4 28 53853 .10733 .00003 .36149 .00004 .239053 .000015
6 4 29 53854 .10848 .00003 .36119 .00004 .237720 .000016
6 4 30 53855 .10940 .00003 .36072 .00004 .236733 .000016
6 5 1 53856 .10980 .00003 .36012 .00003 .235988 .000015
6 5 2 53857 .10994 .00003 .35953 .00003 .235283 .000016
6 5 3 53858 .10992 .00003 .35886 .00003 .234512 .000012
6 5 4 53859 .10999 .00003 .35806 .00003 .233635 .000010
IERS Final Values
MJD x y UT1-UTC
" " s
6 3 6 53800 .0800 .3834 .29140
6 3 7 53801 .0808 .3833 .29076
6 3 8 53802 .0813 .3828 .29031
6 3 9 53803 .0811 .3824 .28993
6 3 10 53804 .0806 .3823 .28957
6 3 11 53805 .0804 .3823 .28918
6 3 12 53806 .0807 .3822 .28868
6 3 13 53807 .0813 .3815 .28799
6 3 14 53808 .0823 .3807 .28712
6 3 15 53809 .0836 .3801 .28612
6 3 16 53810 .0856 .3795 .28507
6 3 17 53811 .0880 .3791 .28404
6 3 18 53812 .0899 .3789 .28312
6 3 19 53813 .0913 .3785 .28222
6 3 20 53814 .0927 .3781 .28148
6 3 21 53815 .0939 .3779 .28088
6 3 22 53816 .0951 .3777 .28038
6 3 23 53817 .0963 .3775 .27990
6 3 24 53818 .0973 .3771 .27933
6 3 25 53819 .0980 .3768 .27853
6 3 26 53820 .0986 .3766 .27735
6 3 27 53821 .0993 .3764 .27581
6 3 28 53822 .1000 .3760 .27396
6 3 29 53823 .1009 .3755 .27193
6 3 30 53824 .1015 .3750 .26986
6 3 31 53825 .1020 .3746 .26801
6 4 1 53826 .1028 .3741 .26649
6 4 2 53827 .1033 .3735 .26538
6 4 3 53828 .1037 .3730 .26455
6 4 4 53829 .1041 .3727 .26395
_______________________________________________________________________
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 - .0790 cos A + .1486 sin A + .1413 cos C - .1303 sin C
y = .3554 + .1356 cos A + .0790 sin A - .1303 cos C - .1413 sin C
UT1-UTC = .2524 - .00043 (MJD - 53864) - (UT2-UT1)
where A = 2*pi*(MJD-53859)/365.25 and C = 2*pi*(MJD-53859)/435.
TAI-UTC(MJD 53860) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53859)**0.80 S t = 0.00025 (MJD-53859)**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 5 5 53860 0.1103 0.3573 0.23261
2006 5 6 53861 0.1106 0.3565 0.23141
2006 5 7 53862 0.1110 0.3558 0.23003
2006 5 8 53863 0.1114 0.3551 0.22851
2006 5 9 53864 0.1118 0.3544 0.22689
2006 5 10 53865 0.1122 0.3537 0.22528
2006 5 11 53866 0.1126 0.3530 0.22377
2006 5 12 53867 0.1130 0.3523 0.22243
2006 5 13 53868 0.1135 0.3515 0.22130
2006 5 14 53869 0.1139 0.3508 0.22044
2006 5 15 53870 0.1143 0.3501 0.21979
2006 5 16 53871 0.1147 0.3493 0.21933
2006 5 17 53872 0.1150 0.3485 0.21895
2006 5 18 53873 0.1154 0.3478 0.21854
2006 5 19 53874 0.1157 0.3470 0.21797
2006 5 20 53875 0.1161 0.3462 0.21718
2006 5 21 53876 0.1164 0.3454 0.21616
2006 5 22 53877 0.1167 0.3445 0.21498
2006 5 23 53878 0.1170 0.3437 0.21376
2006 5 24 53879 0.1173 0.3429 0.21263
2006 5 25 53880 0.1175 0.3420 0.21173
2006 5 26 53881 0.1178 0.3411 0.21115
2006 5 27 53882 0.1180 0.3403 0.21088
2006 5 28 53883 0.1182 0.3394 0.21087
2006 5 29 53884 0.1184 0.3385 0.21101
2006 5 30 53885 0.1186 0.3376 0.21117
2006 5 31 53886 0.1188 0.3367 0.21128
2006 6 1 53887 0.1190 0.3358 0.21128
2006 6 2 53888 0.1191 0.3348 0.21114
2006 6 3 53889 0.1193 0.3339 0.21085
2006 6 4 53890 0.1194 0.3329 0.21047
2006 6 5 53891 0.1195 0.3320 0.21002
2006 6 6 53892 0.1196 0.3310 0.20957
2006 6 7 53893 0.1197 0.3300 0.20919
2006 6 8 53894 0.1197 0.3291 0.20894
2006 6 9 53895 0.1198 0.3281 0.20885
2006 6 10 53896 0.1198 0.3271 0.20897
2006 6 11 53897 0.1199 0.3261 0.20927
2006 6 12 53898 0.1199 0.3251 0.20971
2006 6 13 53899 0.1199 0.3240 0.21019
2006 6 14 53900 0.1199 0.3230 0.21059
2006 6 15 53901 0.1198 0.3220 0.21081
2006 6 16 53902 0.1198 0.3209 0.21076
2006 6 17 53903 0.1197 0.3199 0.21045
2006 6 18 53904 0.1197 0.3188 0.20993
2006 6 19 53905 0.1196 0.3178 0.20933
2006 6 20 53906 0.1195 0.3167 0.20879
2006 6 21 53907 0.1194 0.3157 0.20843
2006 6 22 53908 0.1192 0.3146 0.20834
2006 6 23 53909 0.1191 0.3135 0.20854
2006 6 24 53910 0.1189 0.3124 0.20899
2006 6 25 53911 0.1188 0.3113 0.20961
2006 6 26 53912 0.1186 0.3102 0.21029
2006 6 27 53913 0.1184 0.3091 0.21093
2006 6 28 53914 0.1182 0.3080 0.21146
2006 6 29 53915 0.1179 0.3069 0.21183
2006 6 30 53916 0.1177 0.3058 0.21203
2006 7 1 53917 0.1174 0.3047 0.21210
2006 7 2 53918 0.1172 0.3036 0.21206
2006 7 3 53919 0.1169 0.3024 0.21200
2006 7 4 53920 0.1166 0.3013 0.21197
2006 7 5 53921 0.1163 0.3002 0.21203
2006 7 6 53922 0.1159 0.2991 0.21224
2006 7 7 53923 0.1156 0.2979 0.21263
2006 7 8 53924 0.1152 0.2968 0.21322
2006 7 9 53925 0.1148 0.2957 0.21398
2006 7 10 53926 0.1144 0.2945 0.21482
2006 7 11 53927 0.1140 0.2934 0.21563
2006 7 12 53928 0.1136 0.2922 0.21626
2006 7 13 53929 0.1131 0.2911 0.21663
2006 7 14 53930 0.1127 0.2900 0.21668
2006 7 15 53931 0.1122 0.2888 0.21649
2006 7 16 53932 0.1117 0.2877 0.21617
2006 7 17 53933 0.1112 0.2866 0.21588
2006 7 18 53934 0.1106 0.2854 0.21576
2006 7 19 53935 0.1101 0.2843 0.21592
2006 7 20 53936 0.1095 0.2832 0.21636
2006 7 21 53937 0.1089 0.2821 0.21706
2006 7 22 53938 0.1083 0.2810 0.21794
2006 7 23 53939 0.1077 0.2798 0.21890
2006 7 24 53940 0.1071 0.2787 0.21984
2006 7 25 53941 0.1064 0.2776 0.22069
2006 7 26 53942 0.1057 0.2765 0.22137
2006 7 27 53943 0.1050 0.2754 0.22189
2006 7 28 53944 0.1043 0.2743 0.22223
2006 7 29 53945 0.1036 0.2733 0.22245
2006 7 30 53946 0.1029 0.2722 0.22260
2006 7 31 53947 0.1021 0.2711 0.22275
2006 8 1 53948 0.1013 0.2700 0.22295
2006 8 2 53949 0.1005 0.2690 0.22326
2006 8 3 53950 0.0997 0.2679 0.22372
2006 8 4 53951 0.0988 0.2669 0.22434
2006 8 5 53952 0.0979 0.2659 0.22511
2006 8 6 53953 0.0970 0.2649 0.22598
2006 8 7 53954 0.0961 0.2638 0.22683
2006 8 8 53955 0.0952 0.2629 0.22754
2006 8 9 53956 0.0942 0.2619 0.22798
2006 8 10 53957 0.0933 0.2609 0.22807
2006 8 11 53958 0.0923 0.2599 0.22784
2006 8 12 53959 0.0913 0.2590 0.22740
2006 8 13 53960 0.0902 0.2580 0.22691
2006 8 14 53961 0.0892 0.2571 0.22657
2006 8 15 53962 0.0881 0.2562 0.22650
2006 8 16 53963 0.0870 0.2553 0.22674
2006 8 17 53964 0.0859 0.2544 0.22726
2006 8 18 53965 0.0847 0.2536 0.22791
2006 8 19 53966 0.0836 0.2527 0.22864
2006 8 20 53967 0.0824 0.2519 0.22936
2006 8 21 53968 0.0812 0.2510 0.22998
2006 8 22 53969 0.0800 0.2502 0.23044
2006 8 23 53970 0.0787 0.2495 0.23072
2006 8 24 53971 0.0774 0.2487 0.23082
2006 8 25 53972 0.0761 0.2479 0.23076
2006 8 26 53973 0.0748 0.2472 0.23061
2006 8 27 53974 0.0735 0.2465 0.23043
2006 8 28 53975 0.0721 0.2458 0.23029
2006 8 29 53976 0.0708 0.2451 0.23025
2006 8 30 53977 0.0694 0.2445 0.23034
2006 8 31 53978 0.0679 0.2439 0.23059
2006 9 1 53979 0.0665 0.2433 0.23098
2006 9 2 53980 0.0650 0.2427 0.23148
2006 9 3 53981 0.0635 0.2421 0.23199
2006 9 4 53982 0.0620 0.2416 0.23242
2006 9 5 53983 0.0605 0.2411 0.23261
2006 9 6 53984 0.0589 0.2406 0.23246
2006 9 7 53985 0.0574 0.2401 0.23195
2006 9 8 53986 0.0558 0.2397 0.23113
2006 9 9 53987 0.0541 0.2392 0.23016
2006 9 10 53988 0.0525 0.2389 0.22924
2006 9 11 53989 0.0509 0.2385 0.22855
2006 9 12 53990 0.0492 0.2381 0.22817
2006 9 13 53991 0.0475 0.2378 0.22812
2006 9 14 53992 0.0458 0.2376 0.22831
2006 9 15 53993 0.0440 0.2373 0.22863
2006 9 16 53994 0.0423 0.2371 0.22896
2006 9 17 53995 0.0405 0.2369 0.22919
2006 9 18 53996 0.0387 0.2367 0.22928
2006 9 19 53997 0.0369 0.2365 0.22917
2006 9 20 53998 0.0351 0.2364 0.22888
2006 9 21 53999 0.0332 0.2363 0.22842
2006 9 22 54000 0.0314 0.2363 0.22785
2006 9 23 54001 0.0295 0.2363 0.22723
2006 9 24 54002 0.0276 0.2363 0.22663
2006 9 25 54003 0.0257 0.2363 0.22611
2006 9 26 54004 0.0238 0.2364 0.22573
2006 9 27 54005 0.0218 0.2365 0.22551
2006 9 28 54006 0.0199 0.2366 0.22543
2006 9 29 54007 0.0179 0.2367 0.22548
2006 9 30 54008 0.0159 0.2369 0.22558
2006 10 1 54009 0.0139 0.2372 0.22563
2006 10 2 54010 0.0119 0.2374 0.22552
2006 10 3 54011 0.0099 0.2377 0.22512
2006 10 4 54012 0.0078 0.2380 0.22437
2006 10 5 54013 0.0058 0.2384 0.22328
2006 10 6 54014 0.0037 0.2388 0.22196
2006 10 7 54015 0.0016 0.2392 0.22058
2006 10 8 54016 -0.0004 0.2397 0.21934
2006 10 9 54017 -0.0025 0.2402 0.21838
2006 10 10 54018 -0.0046 0.2407 0.21777
2006 10 11 54019 -0.0067 0.2412 0.21747
2006 10 12 54020 -0.0088 0.2418 0.21736
2006 10 13 54021 -0.0109 0.2425 0.21731
2006 10 14 54022 -0.0131 0.2431 0.21721
2006 10 15 54023 -0.0152 0.2438 0.21697
2006 10 16 54024 -0.0173 0.2446 0.21656
2006 10 17 54025 -0.0195 0.2453 0.21598
2006 10 18 54026 -0.0216 0.2461 0.21523
2006 10 19 54027 -0.0237 0.2470 0.21437
2006 10 20 54028 -0.0259 0.2478 0.21345
2006 10 21 54029 -0.0280 0.2488 0.21254
2006 10 22 54030 -0.0302 0.2497 0.21171
2006 10 23 54031 -0.0323 0.2507 0.21101
2006 10 24 54032 -0.0345 0.2517 0.21048
2006 10 25 54033 -0.0366 0.2527 0.21011
2006 10 26 54034 -0.0387 0.2538 0.20989
2006 10 27 54035 -0.0409 0.2549 0.20975
2006 10 28 54036 -0.0430 0.2561 0.20960
2006 10 29 54037 -0.0451 0.2573 0.20933
2006 10 30 54038 -0.0472 0.2585 0.20884
2006 10 31 54039 -0.0493 0.2597 0.20804
2006 11 1 54040 -0.0514 0.2610 0.20694
2006 11 2 54041 -0.0535 0.2623 0.20557
2006 11 3 54042 -0.0556 0.2637 0.20407
2006 11 4 54043 -0.0577 0.2651 0.20262
2006 11 5 54044 -0.0597 0.2665 0.20139
2006 11 6 54045 -0.0618 0.2680 0.20048
2006 11 7 54046 -0.0638 0.2694 0.19991
2006 11 8 54047 -0.0658 0.2710 0.19959
2006 11 9 54048 -0.0678 0.2725 0.19941
2006 11 10 54049 -0.0698 0.2741 0.19923
2006 11 11 54050 -0.0718 0.2757 0.19895
2006 11 12 54051 -0.0738 0.2774 0.19851
2006 11 13 54052 -0.0757 0.2790 0.19791
2006 11 14 54053 -0.0777 0.2808 0.19716
2006 11 15 54054 -0.0796 0.2825 0.19631
2006 11 16 54055 -0.0815 0.2843 0.19540
2006 11 17 54056 -0.0833 0.2861 0.19452
2006 11 18 54057 -0.0852 0.2879 0.19374
2006 11 19 54058 -0.0870 0.2898 0.19310
2006 11 20 54059 -0.0888 0.2916 0.19266
2006 11 21 54060 -0.0906 0.2936 0.19241
2006 11 22 54061 -0.0924 0.2955 0.19235
2006 11 23 54062 -0.0941 0.2975 0.19240
2006 11 24 54063 -0.0958 0.2995 0.19248
2006 11 25 54064 -0.0974 0.3015 0.19249
2006 11 26 54065 -0.0991 0.3036 0.19232
2006 11 27 54066 -0.1007 0.3056 0.19191
2006 11 28 54067 -0.1022 0.3077 0.19123
2006 11 29 54068 -0.1038 0.3099 0.19034
2006 11 30 54069 -0.1053 0.3120 0.18935
2006 12 1 54070 -0.1067 0.3142 0.18840
2006 12 2 54071 -0.1082 0.3164 0.18762
2006 12 3 54072 -0.1096 0.3186 0.18713
2006 12 4 54073 -0.1109 0.3209 0.18694
2006 12 5 54074 -0.1123 0.3231 0.18701
2006 12 6 54075 -0.1136 0.3254 0.18721
2006 12 7 54076 -0.1148 0.3277 0.18743
2006 12 8 54077 -0.1160 0.3300 0.18754
2006 12 9 54078 -0.1172 0.3324 0.18753
2006 12 10 54079 -0.1183 0.3347 0.18741
2006 12 11 54080 -0.1194 0.3371 0.18718
2006 12 12 54081 -0.1204 0.3395 0.18682
2006 12 13 54082 -0.1214 0.3419 0.18635
2006 12 14 54083 -0.1224 0.3444 0.18584
2006 12 15 54084 -0.1233 0.3468 0.18539
2006 12 16 54085 -0.1242 0.3493 0.18507
2006 12 17 54086 -0.1250 0.3518 0.18489
2006 12 18 54087 -0.1258 0.3543 0.18491
2006 12 19 54088 -0.1265 0.3568 0.18508
2006 12 20 54089 -0.1272 0.3593 0.18532
2006 12 21 54090 -0.1278 0.3618 0.18558
2006 12 22 54091 -0.1284 0.3643 0.18575
2006 12 23 54092 -0.1289 0.3669 0.18569
2006 12 24 54093 -0.1294 0.3695 0.18531
2006 12 25 54094 -0.1298 0.3720 0.18462
2006 12 26 54095 -0.1302 0.3746 0.18366
2006 12 27 54096 -0.1306 0.3772 0.18253
2006 12 28 54097 -0.1308 0.3798 0.18141
2006 12 29 54098 -0.1311 0.3824 0.18042
2006 12 30 54099 -0.1313 0.3850 0.17971
2006 12 31 54100 -0.1314 0.3876 0.17933
2007 1 1 54101 -0.1315 0.3902 0.17921
2007 1 2 54102 -0.1315 0.3928 0.17926
2007 1 3 54103 -0.1315 0.3954 0.17944
2007 1 4 54104 -0.1314 0.3980 0.17957
2007 1 5 54105 -0.1313 0.4006 0.17953
2007 1 6 54106 -0.1311 0.4033 0.17927
2007 1 7 54107 -0.1308 0.4059 0.17885
2007 1 8 54108 -0.1305 0.4085 0.17833
2007 1 9 54109 -0.1302 0.4111 0.17781
2007 1 10 54110 -0.1298 0.4137 0.17734
2007 1 11 54111 -0.1293 0.4163 0.17695
2007 1 12 54112 -0.1288 0.4189 0.17664
2007 1 13 54113 -0.1283 0.4215 0.17653
2007 1 14 54114 -0.1277 0.4241 0.17669
2007 1 15 54115 -0.1270 0.4267 0.17708
2007 1 16 54116 -0.1263 0.4293 0.17761
2007 1 17 54117 -0.1255 0.4319 0.17818
2007 1 18 54118 -0.1247 0.4344 0.17864
2007 1 19 54119 -0.1238 0.4370 0.17886
2007 1 20 54120 -0.1228 0.4395 0.17876
2007 1 21 54121 -0.1218 0.4421 0.17827
2007 1 22 54122 -0.1208 0.4446 0.17750
2007 1 23 54123 -0.1197 0.4471 0.17652
2007 1 24 54124 -0.1185 0.4496 0.17546
2007 1 25 54125 -0.1173 0.4521 0.17444
2007 1 26 54126 -0.1161 0.4545 0.17366
2007 1 27 54127 -0.1148 0.4570 0.17320
2007 1 28 54128 -0.1134 0.4594 0.17301
2007 1 29 54129 -0.1120 0.4618 0.17298
2007 1 30 54130 -0.1106 0.4643 0.17293
2007 1 31 54131 -0.1090 0.4666 0.17289
2007 2 1 54132 -0.1075 0.4690 0.17272
2007 2 2 54133 -0.1059 0.4714 0.17229
2007 2 3 54134 -0.1042 0.4737 0.17163
2007 2 4 54135 -0.1025 0.4760 0.17076
2007 2 5 54136 -0.1007 0.4783 0.16974
2007 2 6 54137 -0.0989 0.4806 0.16864
2007 2 7 54138 -0.0971 0.4828 0.16760
2007 2 8 54139 -0.0952 0.4850 0.16668
2007 2 9 54140 -0.0932 0.4872 0.16594
2007 2 10 54141 -0.0912 0.4894 0.16540
2007 2 11 54142 -0.0892 0.4915 0.16504
2007 2 12 54143 -0.0871 0.4937 0.16479
2007 2 13 54144 -0.0850 0.4958 0.16456
2007 2 14 54145 -0.0828 0.4978 0.16430
2007 2 15 54146 -0.0806 0.4999 0.16392
2007 2 16 54147 -0.0784 0.5019 0.16332
2007 2 17 54148 -0.0761 0.5039 0.16239
2007 2 18 54149 -0.0737 0.5058 0.16114
2007 2 19 54150 -0.0713 0.5077 0.15965
2007 2 20 54151 -0.0689 0.5096 0.15807
2007 2 21 54152 -0.0665 0.5115 0.15659
2007 2 22 54153 -0.0640 0.5133 0.15539
2007 2 23 54154 -0.0614 0.5151 0.15457
2007 2 24 54155 -0.0589 0.5169 0.15412
2007 2 25 54156 -0.0563 0.5186 0.15398
2007 2 26 54157 -0.0536 0.5203 0.15394
2007 2 27 54158 -0.0509 0.5220 0.15388
2007 2 28 54159 -0.0482 0.5236 0.15375
2007 3 1 54160 -0.0455 0.5252 0.15346
2007 3 2 54161 -0.0427 0.5268 0.15294
2007 3 3 54162 -0.0399 0.5283 0.15224
2007 3 4 54163 -0.0371 0.5298 0.15139
2007 3 5 54164 -0.0342 0.5313 0.15043
2007 3 6 54165 -0.0313 0.5327 0.14946
2007 3 7 54166 -0.0284 0.5341 0.14854
2007 3 8 54167 -0.0254 0.5354 0.14777
2007 3 9 54168 -0.0225 0.5367 0.14719
2007 3 10 54169 -0.0195 0.5380 0.14677
2007 3 11 54170 -0.0164 0.5392 0.14648
2007 3 12 54171 -0.0134 0.5404 0.14636
2007 3 13 54172 -0.0103 0.5415 0.14632
2007 3 14 54173 -0.0072 0.5426 0.14626
2007 3 15 54174 -0.0041 0.5437 0.14603
2007 3 16 54175 -0.0010 0.5447 0.14548
2007 3 17 54176 0.0022 0.5457 0.14453
2007 3 18 54177 0.0053 0.5466 0.14324
2007 3 19 54178 0.0085 0.5475 0.14172
2007 3 20 54179 0.0117 0.5484 0.14017
2007 3 21 54180 0.0149 0.5492 0.13874
2007 3 22 54181 0.0182 0.5499 0.13753
2007 3 23 54182 0.0214 0.5506 0.13661
2007 3 24 54183 0.0247 0.5513 0.13598
2007 3 25 54184 0.0280 0.5519 0.13553
2007 3 26 54185 0.0313 0.5525 0.13517
2007 3 27 54186 0.0346 0.5531 0.13476
2007 3 28 54187 0.0379 0.5536 0.13421
2007 3 29 54188 0.0412 0.5540 0.13348
2007 3 30 54189 0.0445 0.5544 0.13257
2007 3 31 54190 0.0478 0.5548 0.13150
2007 4 1 54191 0.0512 0.5551 0.13036
2007 4 2 54192 0.0545 0.5554 0.12927
2007 4 3 54193 0.0578 0.5556 0.12828
2007 4 4 54194 0.0612 0.5557 0.12742
2007 4 5 54195 0.0645 0.5559 0.12672
2007 4 6 54196 0.0679 0.5559 0.12615
2007 4 7 54197 0.0712 0.5560 0.12572
2007 4 8 54198 0.0746 0.5560 0.12545
2007 4 9 54199 0.0780 0.5559 0.12528
2007 4 10 54200 0.0813 0.5558 0.12506
2007 4 11 54201 0.0846 0.5556 0.12471
2007 4 12 54202 0.0880 0.5554 0.12417
2007 4 13 54203 0.0913 0.5552 0.12335
2007 4 14 54204 0.0947 0.5549 0.12226
2007 4 15 54205 0.0980 0.5545 0.12088
2007 4 16 54206 0.1013 0.5541 0.11934
2007 4 17 54207 0.1046 0.5537 0.11791
2007 4 18 54208 0.1079 0.5532 0.11678
2007 4 19 54209 0.1112 0.5526 0.11602
2007 4 20 54210 0.1145 0.5520 0.11562
2007 4 21 54211 0.1178 0.5514 0.11550
2007 4 22 54212 0.1211 0.5507 0.11551
2007 4 23 54213 0.1243 0.5500 0.11547
2007 4 24 54214 0.1276 0.5492 0.11523
2007 4 25 54215 0.1308 0.5484 0.11475
2007 4 26 54216 0.1340 0.5475 0.11404
2007 4 27 54217 0.1372 0.5465 0.11317
2007 4 28 54218 0.1404 0.5456 0.11223
2007 4 29 54219 0.1436 0.5445 0.11122
2007 4 30 54220 0.1467 0.5435 0.11025
2007 5 1 54221 0.1499 0.5423 0.10938
2007 5 2 54222 0.1530 0.5412 0.10861
2007 5 3 54223 0.1561 0.5400 0.10802
2007 5 4 54224 0.1592 0.5387 0.10763
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)
53839 -53.99 .12 -5.40 .34
53840 -54.08 .15 -5.72 .34
53841 -54.06 .15 -5.94 .34
53842 -53.92 .36 -6.06 .13
53843 -53.72 .26 -6.14 .11
53844 -53.50 .22 -6.23 .10
53845 -53.29 .22 -6.34 .10
53846 -53.10 .22 -6.49 .10
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
53800 -56.4 -4.2
53801 -56.2 -4.5
53802 -55.8 -4.7
53803 -55.4 -4.8
53804 -55.0 -4.7
53805 -54.8 -4.5
53806 -54.7 -4.3
53807 -54.8 -4.0
53808 -54.9 -3.9
53809 -54.9 -3.9
53810 -54.8 -4.0
53811 -54.7 -4.2
53812 -54.6 -4.5
53813 -54.6 -4.6
53814 -54.6 -4.8
53815 -54.5 -4.9
53816 -54.4 -5.0
53817 -54.2 -5.1
53818 -53.9 -5.2
53819 -53.7 -5.3
53820 -53.6 -5.3
53821 -53.6 -5.3
53822 -53.8 -5.2
53823 -54.1 -5.0
53824 -54.5 -4.9
53825 -54.8 -4.8
53826 -55.1 -5.0
53827 -55.1 -5.2
53828 -55.0 -5.6
53829 -54.8 -5.9
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53839 -0.000 0.048 -0.370 0.340
53840 0.002 0.060 -0.371 0.340
53841 0.016 0.060 -0.386 0.340
53842 0.036 0.143 -0.404 0.130
53843 0.057 0.103 -0.408 0.110
53844 0.078 0.088 -0.403 0.100
53845 0.083 0.088 -0.395 0.100
53846 0.060 0.088 -0.406 0.100
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
53800 0.14 -0.43
53801 0.12 -0.32
53802 0.16 -0.32
53803 0.21 -0.42
53804 0.27 -0.38
53805 0.24 -0.23
53806 0.20 -0.16
53807 0.12 -0.14
53808 0.06 -0.36
53809 0.03 -0.52
53810 0.04 -0.52
53811 0.08 -0.47
53812 0.14 -0.52
53813 0.15 -0.38
53814 0.13 -0.33
53815 0.12 -0.20
53816 0.07 -0.19
53817 0.09 -0.30
53818 0.22 -0.35
53819 0.34 -0.24
53820 0.33 -0.03
53821 0.21 -0.12
53822 0.04 -0.38
53823 -0.05 -0.52
53824 -0.07 -0.53
53825 -0.01 -0.35
53826 0.05 -0.41
53827 0.14 -0.35
53828 0.13 -0.33
53829 0.04 -0.23
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.
**************************************************************************
Important Notices - Important Notices - Important Notices
**************************************************************************
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
**************************************************************************
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.
**************************************************************************
Important Notice - IAU 2000 Resolution Compliancy Information
**************************************************************************