**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
16 March 2006 Vol. XIX No. 011
______________________________________________________________________
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 10 53804 .08063 .00003 .38220 .00005 .289573 .000008
6 3 11 53805 .08046 .00003 .38227 .00006 .289185 .000008
6 3 12 53806 .08070 .00003 .38215 .00005 .288678 .000007
6 3 13 53807 .08130 .00003 .38153 .00004 .287987 .000007
6 3 14 53808 .08229 .00003 .38072 .00004 .287124 .000007
6 3 15 53809 .08362 .00003 .38004 .00003 .286136 .000007
6 3 16 53810 .08539 .00003 .37947 .00003 .285077 .000007
_______________________________________________________________________
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 = .0577 - .1683 cos A + .0255 sin A + .1870 cos C + .0062 sin C
y = .3583 + .0194 cos A + .1560 sin A + .0062 cos C - .1870 sin C
UT1-UTC = .2887 - .00040 (MJD - 53815) - (UT2-UT1)
where A = 2*pi*(MJD-53810)/365.25 and C = 2*pi*(MJD-53810)/435.
TAI-UTC(MJD 53811) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53810)**0.80 S t = 0.00025 (MJD-53810)**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 17 53811 0.0872 0.3790 0.28402
2006 3 18 53812 0.0889 0.3786 0.28305
2006 3 19 53813 0.0905 0.3783 0.28218
2006 3 20 53814 0.0920 0.3780 0.28145
2006 3 21 53815 0.0934 0.3778 0.28089
2006 3 22 53816 0.0946 0.3776 0.28049
2006 3 23 53817 0.0959 0.3774 0.28017
2006 3 24 53818 0.0970 0.3773 0.27981
2006 3 25 53819 0.0980 0.3771 0.27928
2006 3 26 53820 0.0990 0.3770 0.27845
2006 3 27 53821 0.1000 0.3769 0.27726
2006 3 28 53822 0.1009 0.3767 0.27571
2006 3 29 53823 0.1017 0.3766 0.27394
2006 3 30 53824 0.1025 0.3765 0.27214
2006 3 31 53825 0.1032 0.3764 0.27050
2006 4 1 53826 0.1039 0.3763 0.26914
2006 4 2 53827 0.1046 0.3761 0.26811
2006 4 3 53828 0.1052 0.3760 0.26735
2006 4 4 53829 0.1058 0.3758 0.26676
2006 4 5 53830 0.1064 0.3757 0.26621
2006 4 6 53831 0.1070 0.3755 0.26562
2006 4 7 53832 0.1075 0.3754 0.26492
2006 4 8 53833 0.1080 0.3752 0.26407
2006 4 9 53834 0.1085 0.3750 0.26304
2006 4 10 53835 0.1090 0.3748 0.26184
2006 4 11 53836 0.1095 0.3745 0.26050
2006 4 12 53837 0.1099 0.3743 0.25908
2006 4 13 53838 0.1104 0.3741 0.25765
2006 4 14 53839 0.1108 0.3738 0.25630
2006 4 15 53840 0.1112 0.3735 0.25509
2006 4 16 53841 0.1116 0.3733 0.25406
2006 4 17 53842 0.1120 0.3730 0.25323
2006 4 18 53843 0.1124 0.3727 0.25256
2006 4 19 53844 0.1128 0.3724 0.25199
2006 4 20 53845 0.1131 0.3720 0.25143
2006 4 21 53846 0.1135 0.3717 0.25077
2006 4 22 53847 0.1139 0.3713 0.24988
2006 4 23 53848 0.1142 0.3710 0.24871
2006 4 24 53849 0.1146 0.3706 0.24726
2006 4 25 53850 0.1149 0.3702 0.24563
2006 4 26 53851 0.1153 0.3698 0.24398
2006 4 27 53852 0.1156 0.3694 0.24247
2006 4 28 53853 0.1160 0.3690 0.24124
2006 4 29 53854 0.1163 0.3685 0.24037
2006 4 30 53855 0.1166 0.3681 0.23982
2006 5 1 53856 0.1170 0.3676 0.23949
2006 5 2 53857 0.1173 0.3671 0.23928
2006 5 3 53858 0.1176 0.3666 0.23907
2006 5 4 53859 0.1179 0.3661 0.23877
2006 5 5 53860 0.1183 0.3656 0.23834
2006 5 6 53861 0.1186 0.3651 0.23775
2006 5 7 53862 0.1189 0.3646 0.23702
2006 5 8 53863 0.1192 0.3640 0.23616
2006 5 9 53864 0.1195 0.3635 0.23524
2006 5 10 53865 0.1198 0.3629 0.23431
2006 5 11 53866 0.1201 0.3623 0.23346
2006 5 12 53867 0.1204 0.3618 0.23275
2006 5 13 53868 0.1207 0.3611 0.23224
2006 5 14 53869 0.1210 0.3605 0.23195
2006 5 15 53870 0.1213 0.3599 0.23185
2006 5 16 53871 0.1215 0.3592 0.23188
2006 5 17 53872 0.1218 0.3586 0.23194
2006 5 18 53873 0.1221 0.3579 0.23191
2006 5 19 53874 0.1224 0.3572 0.23168
2006 5 20 53875 0.1226 0.3565 0.23119
2006 5 21 53876 0.1229 0.3558 0.23042
2006 5 22 53877 0.1231 0.3551 0.22947
2006 5 23 53878 0.1234 0.3543 0.22844
2006 5 24 53879 0.1236 0.3536 0.22749
2006 5 25 53880 0.1239 0.3528 0.22677
2006 5 26 53881 0.1241 0.3521 0.22634
2006 5 27 53882 0.1243 0.3513 0.22624
2006 5 28 53883 0.1246 0.3505 0.22640
2006 5 29 53884 0.1248 0.3497 0.22672
2006 5 30 53885 0.1250 0.3489 0.22709
2006 5 31 53886 0.1252 0.3480 0.22741
2006 6 1 53887 0.1254 0.3472 0.22761
2006 6 2 53888 0.1256 0.3463 0.22767
2006 6 3 53889 0.1258 0.3455 0.22758
2006 6 4 53890 0.1259 0.3446 0.22737
2006 6 5 53891 0.1261 0.3437 0.22708
2006 6 6 53892 0.1263 0.3428 0.22678
2006 6 7 53893 0.1264 0.3419 0.22652
2006 6 8 53894 0.1266 0.3410 0.22639
2006 6 9 53895 0.1267 0.3400 0.22642
2006 6 10 53896 0.1268 0.3391 0.22667
2006 6 11 53897 0.1269 0.3381 0.22712
2006 6 12 53898 0.1271 0.3372 0.22772
2006 6 13 53899 0.1272 0.3362 0.22839
2006 6 14 53900 0.1272 0.3352 0.22898
2006 6 15 53901 0.1273 0.3342 0.22940
2006 6 16 53902 0.1274 0.3332 0.22956
2006 6 17 53903 0.1274 0.3322 0.22945
2006 6 18 53904 0.1275 0.3312 0.22914
2006 6 19 53905 0.1275 0.3302 0.22876
2006 6 20 53906 0.1276 0.3291 0.22843
2006 6 21 53907 0.1276 0.3281 0.22828
2006 6 22 53908 0.1276 0.3270 0.22840
2006 6 23 53909 0.1276 0.3259 0.22882
2006 6 24 53910 0.1275 0.3249 0.22950
2006 6 25 53911 0.1275 0.3238 0.23035
2006 6 26 53912 0.1274 0.3227 0.23126
2006 6 27 53913 0.1274 0.3216 0.23213
2006 6 28 53914 0.1273 0.3205 0.23290
2006 6 29 53915 0.1272 0.3193 0.23352
2006 6 30 53916 0.1271 0.3182 0.23394
2006 7 1 53917 0.1270 0.3171 0.23421
2006 7 2 53918 0.1269 0.3160 0.23439
2006 7 3 53919 0.1267 0.3148 0.23453
2006 7 4 53920 0.1266 0.3137 0.23469
2006 7 5 53921 0.1264 0.3125 0.23493
2006 7 6 53922 0.1262 0.3114 0.23531
2006 7 7 53923 0.1260 0.3102 0.23586
2006 7 8 53924 0.1258 0.3090 0.23660
2006 7 9 53925 0.1255 0.3079 0.23750
2006 7 10 53926 0.1253 0.3067 0.23848
2006 7 11 53927 0.1250 0.3055 0.23941
2006 7 12 53928 0.1247 0.3043 0.24016
2006 7 13 53929 0.1244 0.3031 0.24064
2006 7 14 53930 0.1238 0.3020 0.24080
2006 7 15 53931 0.1234 0.3008 0.24072
2006 7 16 53932 0.1231 0.2996 0.24051
2006 7 17 53933 0.1227 0.2984 0.24034
2006 7 18 53934 0.1223 0.2972 0.24034
2006 7 19 53935 0.1219 0.2960 0.24061
2006 7 20 53936 0.1215 0.2948 0.24118
2006 7 21 53937 0.1210 0.2936 0.24199
2006 7 22 53938 0.1206 0.2924 0.24299
2006 7 23 53939 0.1201 0.2912 0.24405
2006 7 24 53940 0.1196 0.2901 0.24509
2006 7 25 53941 0.1190 0.2889 0.24602
2006 7 26 53942 0.1185 0.2877 0.24679
2006 7 27 53943 0.1179 0.2865 0.24738
2006 7 28 53944 0.1173 0.2853 0.24780
2006 7 29 53945 0.1167 0.2842 0.24809
2006 7 30 53946 0.1161 0.2830 0.24831
2006 7 31 53947 0.1154 0.2818 0.24853
2006 8 1 53948 0.1147 0.2807 0.24879
2006 8 2 53949 0.1140 0.2795 0.24917
2006 8 3 53950 0.1133 0.2784 0.24969
2006 8 4 53951 0.1125 0.2772 0.25038
2006 8 5 53952 0.1118 0.2761 0.25122
2006 8 6 53953 0.1110 0.2750 0.25215
2006 8 7 53954 0.1101 0.2739 0.25307
2006 8 8 53955 0.1093 0.2727 0.25385
2006 8 9 53956 0.1084 0.2716 0.25435
2006 8 10 53957 0.1075 0.2706 0.25450
2006 8 11 53958 0.1066 0.2695 0.25433
2006 8 12 53959 0.1056 0.2684 0.25395
2006 8 13 53960 0.1047 0.2674 0.25352
2006 8 14 53961 0.1037 0.2663 0.25324
2006 8 15 53962 0.1027 0.2653 0.25322
2006 8 16 53963 0.1016 0.2642 0.25351
2006 8 17 53964 0.1006 0.2632 0.25409
2006 8 18 53965 0.0995 0.2622 0.25486
2006 8 19 53966 0.0983 0.2613 0.25571
2006 8 20 53967 0.0972 0.2603 0.25654
2006 8 21 53968 0.0960 0.2593 0.25728
2006 8 22 53969 0.0948 0.2584 0.25785
2006 8 23 53970 0.0936 0.2575 0.25823
2006 8 24 53971 0.0924 0.2566 0.25843
2006 8 25 53972 0.0911 0.2557 0.25848
2006 8 26 53973 0.0898 0.2548 0.25843
2006 8 27 53974 0.0885 0.2540 0.25834
2006 8 28 53975 0.0872 0.2532 0.25830
2006 8 29 53976 0.0858 0.2523 0.25834
2006 8 30 53977 0.0844 0.2515 0.25852
2006 8 31 53978 0.0830 0.2508 0.25886
2006 9 1 53979 0.0815 0.2500 0.25933
2006 9 2 53980 0.0801 0.2493 0.25992
2006 9 3 53981 0.0786 0.2486 0.26052
2006 9 4 53982 0.0770 0.2479 0.26103
2006 9 5 53983 0.0755 0.2472 0.26131
2006 9 6 53984 0.0739 0.2466 0.26125
2006 9 7 53985 0.0723 0.2460 0.26083
2006 9 8 53986 0.0707 0.2454 0.26010
2006 9 9 53987 0.0691 0.2448 0.25923
2006 9 10 53988 0.0674 0.2442 0.25843
2006 9 11 53989 0.0658 0.2437 0.25785
2006 9 12 53990 0.0640 0.2432 0.25762
2006 9 13 53991 0.0623 0.2427 0.25773
2006 9 14 53992 0.0606 0.2423 0.25810
2006 9 15 53993 0.0588 0.2419 0.25862
2006 9 16 53994 0.0570 0.2415 0.25918
2006 9 17 53995 0.0552 0.2411 0.25969
2006 9 18 53996 0.0533 0.2408 0.26006
2006 9 19 53997 0.0515 0.2405 0.26028
2006 9 20 53998 0.0496 0.2402 0.26033
2006 9 21 53999 0.0477 0.2399 0.26023
2006 9 22 54000 0.0458 0.2397 0.26000
2006 9 23 54001 0.0439 0.2395 0.25970
2006 9 24 54002 0.0420 0.2393 0.25940
2006 9 25 54003 0.0401 0.2392 0.25914
2006 9 26 54004 0.0381 0.2391 0.25897
2006 9 27 54005 0.0361 0.2390 0.25891
2006 9 28 54006 0.0342 0.2389 0.25895
2006 9 29 54007 0.0322 0.2389 0.25906
2006 9 30 54008 0.0301 0.2389 0.25919
2006 10 1 54009 0.0281 0.2389 0.25924
2006 10 2 54010 0.0261 0.2390 0.25911
2006 10 3 54011 0.0240 0.2391 0.25871
2006 10 4 54012 0.0219 0.2392 0.25798
2006 10 5 54013 0.0199 0.2394 0.25694
2006 10 6 54014 0.0178 0.2396 0.25570
2006 10 7 54015 0.0156 0.2398 0.25445
2006 10 8 54016 0.0135 0.2401 0.25339
2006 10 9 54017 0.0114 0.2404 0.25267
2006 10 10 54018 0.0093 0.2408 0.25233
2006 10 11 54019 0.0071 0.2411 0.25231
2006 10 12 54020 0.0050 0.2415 0.25248
2006 10 13 54021 0.0028 0.2420 0.25266
2006 10 14 54022 0.0006 0.2424 0.25273
2006 10 15 54023 -0.0016 0.2429 0.25260
2006 10 16 54024 -0.0037 0.2435 0.25226
2006 10 17 54025 -0.0059 0.2441 0.25171
2006 10 18 54026 -0.0081 0.2447 0.25096
2006 10 19 54027 -0.0103 0.2453 0.25006
2006 10 20 54028 -0.0125 0.2460 0.24909
2006 10 21 54029 -0.0147 0.2467 0.24815
2006 10 22 54030 -0.0169 0.2475 0.24729
2006 10 23 54031 -0.0191 0.2483 0.24652
2006 10 24 54032 -0.0213 0.2491 0.24582
2006 10 25 54033 -0.0235 0.2499 0.24531
2006 10 26 54034 -0.0257 0.2508 0.24494
2006 10 27 54035 -0.0279 0.2517 0.24456
2006 10 28 54036 -0.0301 0.2527 0.24415
2006 10 29 54037 -0.0323 0.2537 0.24358
2006 10 30 54038 -0.0345 0.2547 0.24277
2006 10 31 54039 -0.0366 0.2558 0.24163
2006 11 1 54040 -0.0388 0.2569 0.24024
2006 11 2 54041 -0.0410 0.2580 0.23862
2006 11 3 54042 -0.0431 0.2592 0.23693
2006 11 4 54043 -0.0453 0.2604 0.23533
2006 11 5 54044 -0.0474 0.2616 0.23398
2006 11 6 54045 -0.0495 0.2629 0.23290
2006 11 7 54046 -0.0516 0.2642 0.23209
2006 11 8 54047 -0.0537 0.2655 0.23150
2006 11 9 54048 -0.0558 0.2669 0.23105
2006 11 10 54049 -0.0579 0.2683 0.23060
2006 11 11 54050 -0.0599 0.2697 0.23004
2006 11 12 54051 -0.0619 0.2712 0.22936
2006 11 13 54052 -0.0639 0.2727 0.22852
2006 11 14 54053 -0.0659 0.2742 0.22758
2006 11 15 54054 -0.0679 0.2758 0.22657
2006 11 16 54055 -0.0699 0.2774 0.22555
2006 11 17 54056 -0.0718 0.2790 0.22462
2006 11 18 54057 -0.0737 0.2806 0.22382
2006 11 19 54058 -0.0756 0.2823 0.22322
2006 11 20 54059 -0.0775 0.2840 0.22276
2006 11 21 54060 -0.0793 0.2858 0.22247
2006 11 22 54061 -0.0811 0.2875 0.22237
2006 11 23 54062 -0.0829 0.2893 0.22238
2006 11 24 54063 -0.0847 0.2912 0.22238
2006 11 25 54064 -0.0864 0.2930 0.22232
2006 11 26 54065 -0.0882 0.2949 0.22205
2006 11 27 54066 -0.0898 0.2968 0.22151
2006 11 28 54067 -0.0915 0.2988 0.22069
2006 11 29 54068 -0.0931 0.3007 0.21962
2006 11 30 54069 -0.0947 0.3027 0.21844
2006 12 1 54070 -0.0963 0.3047 0.21729
2006 12 2 54071 -0.0978 0.3068 0.21629
2006 12 3 54072 -0.0993 0.3088 0.21554
2006 12 4 54073 -0.1007 0.3109 0.21516
2006 12 5 54074 -0.1022 0.3130 0.21511
2006 12 6 54075 -0.1035 0.3152 0.21526
2006 12 7 54076 -0.1049 0.3173 0.21548
2006 12 8 54077 -0.1062 0.3195 0.21558
2006 12 9 54078 -0.1075 0.3217 0.21550
2006 12 10 54079 -0.1087 0.3239 0.21523
2006 12 11 54080 -0.1099 0.3262 0.21479
2006 12 12 54081 -0.1111 0.3284 0.21424
2006 12 13 54082 -0.1122 0.3307 0.21359
2006 12 14 54083 -0.1133 0.3330 0.21286
2006 12 15 54084 -0.1143 0.3353 0.21211
2006 12 16 54085 -0.1153 0.3377 0.21148
2006 12 17 54086 -0.1163 0.3400 0.21102
2006 12 18 54087 -0.1172 0.3424 0.21076
2006 12 19 54088 -0.1180 0.3448 0.21068
2006 12 20 54089 -0.1189 0.3472 0.21074
2006 12 21 54090 -0.1196 0.3496 0.21084
2006 12 22 54091 -0.1204 0.3520 0.21088
2006 12 23 54092 -0.1211 0.3544 0.21073
2006 12 24 54093 -0.1217 0.3569 0.21036
2006 12 25 54094 -0.1223 0.3594 0.20977
2006 12 26 54095 -0.1229 0.3618 0.20899
2006 12 27 54096 -0.1234 0.3643 0.20809
2006 12 28 54097 -0.1238 0.3668 0.20717
2006 12 29 54098 -0.1242 0.3693 0.20634
2006 12 30 54099 -0.1246 0.3718 0.20571
2006 12 31 54100 -0.1249 0.3744 0.20540
2007 1 1 54101 -0.1252 0.3769 0.20538
2007 1 2 54102 -0.1254 0.3794 0.20550
2007 1 3 54103 -0.1255 0.3820 0.20570
2007 1 4 54104 -0.1257 0.3845 0.20587
2007 1 5 54105 -0.1257 0.3871 0.20593
2007 1 6 54106 -0.1258 0.3896 0.20587
2007 1 7 54107 -0.1257 0.3922 0.20560
2007 1 8 54108 -0.1256 0.3948 0.20516
2007 1 9 54109 -0.1255 0.3973 0.20467
2007 1 10 54110 -0.1253 0.3999 0.20422
2007 1 11 54111 -0.1251 0.4024 0.20384
2007 1 12 54112 -0.1248 0.4050 0.20357
2007 1 13 54113 -0.1245 0.4076 0.20345
2007 1 14 54114 -0.1241 0.4101 0.20352
2007 1 15 54115 -0.1237 0.4127 0.20372
2007 1 16 54116 -0.1232 0.4153 0.20397
2007 1 17 54117 -0.1227 0.4178 0.20420
2007 1 18 54118 -0.1221 0.4204 0.20433
2007 1 19 54119 -0.1215 0.4229 0.20428
2007 1 20 54120 -0.1208 0.4255 0.20398
2007 1 21 54121 -0.1201 0.4280 0.20333
2007 1 22 54122 -0.1193 0.4305 0.20238
2007 1 23 54123 -0.1184 0.4330 0.20123
2007 1 24 54124 -0.1176 0.4356 0.19998
2007 1 25 54125 -0.1166 0.4381 0.19883
2007 1 26 54126 -0.1157 0.4406 0.19793
2007 1 27 54127 -0.1146 0.4430 0.19733
2007 1 28 54128 -0.1136 0.4455 0.19697
2007 1 29 54129 -0.1124 0.4480 0.19682
2007 1 30 54130 -0.1113 0.4504 0.19675
2007 1 31 54131 -0.1101 0.4529 0.19668
2007 2 1 54132 -0.1088 0.4553 0.19651
2007 2 2 54133 -0.1075 0.4577 0.19620
2007 2 3 54134 -0.1061 0.4601 0.19575
2007 2 4 54135 -0.1047 0.4625 0.19516
2007 2 5 54136 -0.1033 0.4648 0.19442
2007 2 6 54137 -0.1018 0.4672 0.19361
2007 2 7 54138 -0.1002 0.4695 0.19284
2007 2 8 54139 -0.0986 0.4718 0.19214
2007 2 9 54140 -0.0970 0.4741 0.19156
2007 2 10 54141 -0.0953 0.4764 0.19112
2007 2 11 54142 -0.0936 0.4786 0.19086
2007 2 12 54143 -0.0918 0.4808 0.19070
2007 2 13 54144 -0.0900 0.4831 0.19056
2007 2 14 54145 -0.0882 0.4852 0.19041
2007 2 15 54146 -0.0863 0.4874 0.19018
2007 2 16 54147 -0.0844 0.4896 0.18977
2007 2 17 54148 -0.0824 0.4917 0.18910
2007 2 18 54149 -0.0804 0.4938 0.18809
2007 2 19 54150 -0.0783 0.4958 0.18683
2007 2 20 54151 -0.0762 0.4979 0.18545
2007 2 21 54152 -0.0741 0.4999 0.18413
2007 2 22 54153 -0.0719 0.5019 0.18305
2007 2 23 54154 -0.0697 0.5038 0.18230
2007 2 24 54155 -0.0675 0.5058 0.18192
2007 2 25 54156 -0.0652 0.5077 0.18184
2007 2 26 54157 -0.0629 0.5096 0.18199
2007 2 27 54158 -0.0606 0.5114 0.18225
2007 2 28 54159 -0.0582 0.5132 0.18244
2007 3 1 54160 -0.0558 0.5150 0.18249
2007 3 2 54161 -0.0533 0.5168 0.18228
2007 3 3 54162 -0.0508 0.5185 0.18186
2007 3 4 54163 -0.0483 0.5202 0.18138
2007 3 5 54164 -0.0458 0.5219 0.18086
2007 3 6 54165 -0.0432 0.5235 0.18032
2007 3 7 54166 -0.0406 0.5251 0.17978
2007 3 8 54167 -0.0380 0.5267 0.17939
2007 3 9 54168 -0.0353 0.5282 0.17919
2007 3 10 54169 -0.0326 0.5297 0.17921
2007 3 11 54170 -0.0299 0.5311 0.17934
2007 3 12 54171 -0.0271 0.5326 0.17954
2007 3 13 54172 -0.0244 0.5339 0.17971
2007 3 14 54173 -0.0216 0.5353 0.17979
2007 3 15 54174 -0.0188 0.5366 0.17969
2007 3 16 54175 -0.0159 0.5379 0.17929
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)
53791 -56.33 .10 -3.90 .13
53792 -56.07 .21 -4.08 .12
53793 -55.48 .23 -3.95 .34
53794 -55.04 .26 -3.63 .34
53795 -55.02 .21 -3.44 .34
53796 -55.32 .21 -3.48 .34
53797 -55.74 .21 -3.59 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53791 0.154 0.040 -0.469 0.130
53792 0.174 0.084 -0.405 0.120
53793 0.164 0.091 -0.371 0.340
53794 0.145 0.103 -0.398 0.340
53795 0.135 0.084 -0.437 0.340
53796 0.119 0.084 -0.446 0.340
53797 0.102 0.084 -0.448 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
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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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