**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
18 May 2006 Vol. XIX No. 020
______________________________________________________________________
GENERAL INFORMATION:
To receive this information electronically, contact:
ser7@maia.usno.navy.mil or use <http://maia.usno.navy.mil/>
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 <http://maia.usno.navy.mil/bulla-data.html>. 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 5 12 53867 .10751 .00003 .35145 .00005 .222963 .000011
6 5 13 53868 .10783 .00003 .35075 .00004 .221636 .000019
6 5 14 53869 .10858 .00003 .34990 .00003 .220492 .000019
6 5 15 53870 .10970 .00003 .34919 .00003 .219560 .000020
6 5 16 53871 .11070 .00002 .34859 .00002 .218759 .000020
6 5 17 53872 .11114 .00003 .34791 .00002 .217993 .000019
6 5 18 53873 .11127 .00002 .34706 .00002 .217113 .000018
_______________________________________________________________________
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 = .0419 - .0389 cos A + .1604 sin A + .1085 cos C - .1548 sin C
y = .3558 + .1477 cos A + .0416 sin A - .1548 cos C - .1085 sin C
UT1-UTC = .2308 - .00045 (MJD - 53878) - (UT2-UT1)
where A = 2*pi*(MJD-53873)/365.25 and C = 2*pi*(MJD-53873)/435.
TAI-UTC(MJD 53874) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53873)**0.80 S t = 0.00025 (MJD-53873)**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 19 53874 0.1115 0.3462 0.21599
2006 5 20 53875 0.1118 0.3453 0.21466
2006 5 21 53876 0.1120 0.3445 0.21311
2006 5 22 53877 0.1123 0.3437 0.21139
2006 5 23 53878 0.1125 0.3428 0.20959
2006 5 24 53879 0.1128 0.3420 0.20788
2006 5 25 53880 0.1130 0.3411 0.20638
2006 5 26 53881 0.1132 0.3403 0.20513
2006 5 27 53882 0.1134 0.3394 0.20420
2006 5 28 53883 0.1136 0.3385 0.20352
2006 5 29 53884 0.1138 0.3376 0.20301
2006 5 30 53885 0.1139 0.3367 0.20258
2006 5 31 53886 0.1141 0.3358 0.20214
2006 6 1 53887 0.1142 0.3349 0.20162
2006 6 2 53888 0.1144 0.3340 0.20097
2006 6 3 53889 0.1145 0.3331 0.20019
2006 6 4 53890 0.1146 0.3321 0.19931
2006 6 5 53891 0.1147 0.3312 0.19837
2006 6 6 53892 0.1147 0.3302 0.19745
2006 6 7 53893 0.1148 0.3293 0.19662
2006 6 8 53894 0.1149 0.3283 0.19594
2006 6 9 53895 0.1149 0.3273 0.19547
2006 6 10 53896 0.1149 0.3263 0.19524
2006 6 11 53897 0.1149 0.3254 0.19524
2006 6 12 53898 0.1149 0.3244 0.19544
2006 6 13 53899 0.1149 0.3234 0.19571
2006 6 14 53900 0.1149 0.3224 0.19594
2006 6 15 53901 0.1149 0.3214 0.19599
2006 6 16 53902 0.1148 0.3203 0.19580
2006 6 17 53903 0.1148 0.3193 0.19535
2006 6 18 53904 0.1147 0.3183 0.19471
2006 6 19 53905 0.1146 0.3173 0.19399
2006 6 20 53906 0.1145 0.3162 0.19332
2006 6 21 53907 0.1144 0.3152 0.19284
2006 6 22 53908 0.1143 0.3141 0.19265
2006 6 23 53909 0.1141 0.3131 0.19276
2006 6 24 53910 0.1140 0.3120 0.19314
2006 6 25 53911 0.1138 0.3110 0.19371
2006 6 26 53912 0.1136 0.3099 0.19438
2006 6 27 53913 0.1134 0.3089 0.19502
2006 6 28 53914 0.1132 0.3078 0.19558
2006 6 29 53915 0.1130 0.3067 0.19600
2006 6 30 53916 0.1128 0.3057 0.19626
2006 7 1 53917 0.1125 0.3046 0.19638
2006 7 2 53918 0.1123 0.3035 0.19640
2006 7 3 53919 0.1120 0.3024 0.19636
2006 7 4 53920 0.1117 0.3014 0.19633
2006 7 5 53921 0.1114 0.3003 0.19638
2006 7 6 53922 0.1111 0.2992 0.19656
2006 7 7 53923 0.1108 0.2981 0.19693
2006 7 8 53924 0.1104 0.2970 0.19748
2006 7 9 53925 0.1100 0.2959 0.19819
2006 7 10 53926 0.1097 0.2949 0.19897
2006 7 11 53927 0.1093 0.2938 0.19971
2006 7 12 53928 0.1089 0.2927 0.20028
2006 7 13 53929 0.1084 0.2916 0.20055
2006 7 14 53930 0.1080 0.2905 0.20052
2006 7 15 53931 0.1075 0.2895 0.20022
2006 7 16 53932 0.1071 0.2884 0.19980
2006 7 17 53933 0.1066 0.2873 0.19941
2006 7 18 53934 0.1061 0.2862 0.19919
2006 7 19 53935 0.1055 0.2852 0.19923
2006 7 20 53936 0.1050 0.2841 0.19956
2006 7 21 53937 0.1044 0.2830 0.20014
2006 7 22 53938 0.1039 0.2820 0.20090
2006 7 23 53939 0.1033 0.2809 0.20174
2006 7 24 53940 0.1027 0.2799 0.20256
2006 7 25 53941 0.1020 0.2788 0.20328
2006 7 26 53942 0.1014 0.2778 0.20386
2006 7 27 53943 0.1007 0.2767 0.20426
2006 7 28 53944 0.1000 0.2757 0.20451
2006 7 29 53945 0.0993 0.2747 0.20463
2006 7 30 53946 0.0986 0.2737 0.20469
2006 7 31 53947 0.0979 0.2726 0.20475
2006 8 1 53948 0.0971 0.2716 0.20487
2006 8 2 53949 0.0963 0.2706 0.20511
2006 8 3 53950 0.0955 0.2697 0.20551
2006 8 4 53951 0.0947 0.2687 0.20607
2006 8 5 53952 0.0939 0.2677 0.20678
2006 8 6 53953 0.0930 0.2667 0.20758
2006 8 7 53954 0.0921 0.2658 0.20837
2006 8 8 53955 0.0913 0.2649 0.20901
2006 8 9 53956 0.0903 0.2639 0.20938
2006 8 10 53957 0.0894 0.2630 0.20940
2006 8 11 53958 0.0884 0.2621 0.20910
2006 8 12 53959 0.0875 0.2612 0.20858
2006 8 13 53960 0.0865 0.2603 0.20803
2006 8 14 53961 0.0854 0.2595 0.20762
2006 8 15 53962 0.0844 0.2586 0.20748
2006 8 16 53963 0.0833 0.2578 0.20766
2006 8 17 53964 0.0823 0.2569 0.20813
2006 8 18 53965 0.0812 0.2561 0.20879
2006 8 19 53966 0.0800 0.2553 0.20953
2006 8 20 53967 0.0789 0.2545 0.21026
2006 8 21 53968 0.0777 0.2538 0.21089
2006 8 22 53969 0.0765 0.2530 0.21135
2006 8 23 53970 0.0753 0.2523 0.21162
2006 8 24 53971 0.0741 0.2516 0.21170
2006 8 25 53972 0.0728 0.2509 0.21163
2006 8 26 53973 0.0716 0.2502 0.21147
2006 8 27 53974 0.0703 0.2495 0.21127
2006 8 28 53975 0.0689 0.2489 0.21110
2006 8 29 53976 0.0676 0.2483 0.21103
2006 8 30 53977 0.0662 0.2477 0.21110
2006 8 31 53978 0.0649 0.2471 0.21132
2006 9 1 53979 0.0635 0.2465 0.21159
2006 9 2 53980 0.0620 0.2460 0.21197
2006 9 3 53981 0.0606 0.2454 0.21237
2006 9 4 53982 0.0591 0.2449 0.21268
2006 9 5 53983 0.0576 0.2445 0.21276
2006 9 6 53984 0.0561 0.2440 0.21251
2006 9 7 53985 0.0546 0.2436 0.21189
2006 9 8 53986 0.0530 0.2432 0.21097
2006 9 9 53987 0.0515 0.2428 0.20991
2006 9 10 53988 0.0499 0.2424 0.20889
2006 9 11 53989 0.0482 0.2421 0.20811
2006 9 12 53990 0.0466 0.2418 0.20765
2006 9 13 53991 0.0450 0.2415 0.20752
2006 9 14 53992 0.0433 0.2412 0.20763
2006 9 15 53993 0.0416 0.2410 0.20788
2006 9 16 53994 0.0399 0.2408 0.20813
2006 9 17 53995 0.0382 0.2406 0.20830
2006 9 18 53996 0.0364 0.2405 0.20832
2006 9 19 53997 0.0346 0.2404 0.20815
2006 9 20 53998 0.0329 0.2403 0.20781
2006 9 21 53999 0.0310 0.2402 0.20730
2006 9 22 54000 0.0292 0.2402 0.20668
2006 9 23 54001 0.0274 0.2401 0.20602
2006 9 24 54002 0.0255 0.2402 0.20538
2006 9 25 54003 0.0237 0.2402 0.20483
2006 9 26 54004 0.0218 0.2403 0.20441
2006 9 27 54005 0.0199 0.2404 0.20416
2006 9 28 54006 0.0180 0.2405 0.20405
2006 9 29 54007 0.0160 0.2407 0.20407
2006 9 30 54008 0.0141 0.2409 0.20414
2006 10 1 54009 0.0122 0.2412 0.20417
2006 10 2 54010 0.0102 0.2414 0.20403
2006 10 3 54011 0.0082 0.2417 0.20361
2006 10 4 54012 0.0062 0.2420 0.20283
2006 10 5 54013 0.0042 0.2424 0.20172
2006 10 6 54014 0.0022 0.2428 0.20037
2006 10 7 54015 0.0002 0.2432 0.19897
2006 10 8 54016 -0.0019 0.2437 0.19770
2006 10 9 54017 -0.0039 0.2442 0.19672
2006 10 10 54018 -0.0060 0.2447 0.19609
2006 10 11 54019 -0.0080 0.2453 0.19576
2006 10 12 54020 -0.0101 0.2459 0.19563
2006 10 13 54021 -0.0121 0.2465 0.19556
2006 10 14 54022 -0.0142 0.2471 0.19544
2006 10 15 54023 -0.0163 0.2478 0.19518
2006 10 16 54024 -0.0184 0.2486 0.19476
2006 10 17 54025 -0.0205 0.2493 0.19415
2006 10 18 54026 -0.0226 0.2501 0.19339
2006 10 19 54027 -0.0247 0.2509 0.19252
2006 10 20 54028 -0.0267 0.2518 0.19158
2006 10 21 54029 -0.0288 0.2527 0.19066
2006 10 22 54030 -0.0309 0.2536 0.18982
2006 10 23 54031 -0.0330 0.2546 0.18911
2006 10 24 54032 -0.0351 0.2556 0.18857
2006 10 25 54033 -0.0372 0.2566 0.18821
2006 10 26 54034 -0.0393 0.2577 0.18798
2006 10 27 54035 -0.0414 0.2588 0.18784
2006 10 28 54036 -0.0434 0.2599 0.18769
2006 10 29 54037 -0.0455 0.2611 0.18743
2006 10 30 54038 -0.0476 0.2623 0.18696
2006 10 31 54039 -0.0496 0.2635 0.18619
2006 11 1 54040 -0.0517 0.2648 0.18510
2006 11 2 54041 -0.0537 0.2661 0.18375
2006 11 3 54042 -0.0557 0.2674 0.18227
2006 11 4 54043 -0.0578 0.2688 0.18084
2006 11 5 54044 -0.0598 0.2702 0.17962
2006 11 6 54045 -0.0617 0.2716 0.17872
2006 11 7 54046 -0.0637 0.2731 0.17815
2006 11 8 54047 -0.0657 0.2746 0.17783
2006 11 9 54048 -0.0676 0.2761 0.17763
2006 11 10 54049 -0.0696 0.2777 0.17743
2006 11 11 54050 -0.0715 0.2793 0.17712
2006 11 12 54051 -0.0734 0.2809 0.17664
2006 11 13 54052 -0.0752 0.2825 0.17599
2006 11 14 54053 -0.0771 0.2842 0.17518
2006 11 15 54054 -0.0789 0.2859 0.17424
2006 11 16 54055 -0.0807 0.2877 0.17324
2006 11 17 54056 -0.0825 0.2894 0.17223
2006 11 18 54057 -0.0843 0.2912 0.17129
2006 11 19 54058 -0.0860 0.2931 0.17047
2006 11 20 54059 -0.0878 0.2949 0.16983
2006 11 21 54060 -0.0895 0.2968 0.16937
2006 11 22 54061 -0.0911 0.2987 0.16910
2006 11 23 54062 -0.0928 0.3007 0.16896
2006 11 24 54063 -0.0944 0.3027 0.16885
2006 11 25 54064 -0.0960 0.3047 0.16869
2006 11 26 54065 -0.0976 0.3067 0.16835
2006 11 27 54066 -0.0991 0.3087 0.16777
2006 11 28 54067 -0.1006 0.3108 0.16692
2006 11 29 54068 -0.1021 0.3129 0.16584
2006 11 30 54069 -0.1036 0.3150 0.16461
2006 12 1 54070 -0.1050 0.3172 0.16338
2006 12 2 54071 -0.1064 0.3194 0.16229
2006 12 3 54072 -0.1077 0.3215 0.16147
2006 12 4 54073 -0.1090 0.3238 0.16097
2006 12 5 54074 -0.1103 0.3260 0.16076
2006 12 6 54075 -0.1115 0.3283 0.16074
2006 12 7 54076 -0.1127 0.3305 0.16079
2006 12 8 54077 -0.1139 0.3328 0.16080
2006 12 9 54078 -0.1150 0.3352 0.16070
2006 12 10 54079 -0.1161 0.3375 0.16044
2006 12 11 54080 -0.1171 0.3398 0.16004
2006 12 12 54081 -0.1181 0.3422 0.15951
2006 12 13 54082 -0.1190 0.3446 0.15891
2006 12 14 54083 -0.1199 0.3470 0.15831
2006 12 15 54084 -0.1208 0.3494 0.15778
2006 12 16 54085 -0.1216 0.3519 0.15738
2006 12 17 54086 -0.1224 0.3543 0.15718
2006 12 18 54087 -0.1231 0.3568 0.15716
2006 12 19 54088 -0.1238 0.3592 0.15730
2006 12 20 54089 -0.1244 0.3617 0.15753
2006 12 21 54090 -0.1250 0.3642 0.15777
2006 12 22 54091 -0.1255 0.3667 0.15795
2006 12 23 54092 -0.1260 0.3692 0.15795
2006 12 24 54093 -0.1265 0.3718 0.15773
2006 12 25 54094 -0.1269 0.3743 0.15726
2006 12 26 54095 -0.1272 0.3769 0.15659
2006 12 27 54096 -0.1275 0.3794 0.15585
2006 12 28 54097 -0.1277 0.3820 0.15514
2006 12 29 54098 -0.1279 0.3845 0.15457
2006 12 30 54099 -0.1281 0.3871 0.15422
2006 12 31 54100 -0.1281 0.3897 0.15421
2007 1 1 54101 -0.1282 0.3922 0.15445
2007 1 2 54102 -0.1282 0.3948 0.15483
2007 1 3 54103 -0.1281 0.3974 0.15524
2007 1 4 54104 -0.1280 0.4000 0.15557
2007 1 5 54105 -0.1278 0.4026 0.15575
2007 1 6 54106 -0.1276 0.4052 0.15574
2007 1 7 54107 -0.1273 0.4077 0.15564
2007 1 8 54108 -0.1270 0.4103 0.15546
2007 1 9 54109 -0.1266 0.4129 0.15515
2007 1 10 54110 -0.1262 0.4155 0.15478
2007 1 11 54111 -0.1257 0.4180 0.15442
2007 1 12 54112 -0.1252 0.4206 0.15414
2007 1 13 54113 -0.1246 0.4232 0.15403
2007 1 14 54114 -0.1239 0.4257 0.15407
2007 1 15 54115 -0.1232 0.4283 0.15428
2007 1 16 54116 -0.1225 0.4308 0.15462
2007 1 17 54117 -0.1217 0.4333 0.15496
2007 1 18 54118 -0.1208 0.4359 0.15525
2007 1 19 54119 -0.1199 0.4384 0.15534
2007 1 20 54120 -0.1190 0.4409 0.15512
2007 1 21 54121 -0.1180 0.4434 0.15452
2007 1 22 54122 -0.1169 0.4459 0.15360
2007 1 23 54123 -0.1158 0.4483 0.15246
2007 1 24 54124 -0.1146 0.4508 0.15126
2007 1 25 54125 -0.1134 0.4532 0.15018
2007 1 26 54126 -0.1121 0.4557 0.14935
2007 1 27 54127 -0.1108 0.4581 0.14884
2007 1 28 54128 -0.1095 0.4605 0.14865
2007 1 29 54129 -0.1080 0.4628 0.14866
2007 1 30 54130 -0.1066 0.4652 0.14874
2007 1 31 54131 -0.1051 0.4675 0.14884
2007 2 1 54132 -0.1035 0.4699 0.14883
2007 2 2 54133 -0.1019 0.4722 0.14858
2007 2 3 54134 -0.1002 0.4744 0.14812
2007 2 4 54135 -0.0985 0.4767 0.14748
2007 2 5 54136 -0.0968 0.4789 0.14677
2007 2 6 54137 -0.0950 0.4812 0.14610
2007 2 7 54138 -0.0931 0.4834 0.14552
2007 2 8 54139 -0.0912 0.4855 0.14505
2007 2 9 54140 -0.0893 0.4877 0.14469
2007 2 10 54141 -0.0873 0.4898 0.14455
2007 2 11 54142 -0.0853 0.4919 0.14468
2007 2 12 54143 -0.0832 0.4940 0.14500
2007 2 13 54144 -0.0811 0.4960 0.14542
2007 2 14 54145 -0.0789 0.4980 0.14582
2007 2 15 54146 -0.0767 0.5000 0.14602
2007 2 16 54147 -0.0745 0.5020 0.14589
2007 2 17 54148 -0.0722 0.5039 0.14539
2007 2 18 54149 -0.0699 0.5058 0.14446
2007 2 19 54150 -0.0676 0.5076 0.14326
2007 2 20 54151 -0.0652 0.5095 0.14194
2007 2 21 54152 -0.0627 0.5113 0.14063
2007 2 22 54153 -0.0603 0.5131 0.13947
2007 2 23 54154 -0.0578 0.5148 0.13861
2007 2 24 54155 -0.0552 0.5165 0.13811
2007 2 25 54156 -0.0527 0.5182 0.13784
2007 2 26 54157 -0.0501 0.5198 0.13765
2007 2 27 54158 -0.0474 0.5214 0.13735
2007 2 28 54159 -0.0448 0.5230 0.13699
2007 3 1 54160 -0.0421 0.5245 0.13645
2007 3 2 54161 -0.0393 0.5260 0.13563
2007 3 3 54162 -0.0366 0.5275 0.13461
2007 3 4 54163 -0.0338 0.5289 0.13340
2007 3 5 54164 -0.0310 0.5303 0.13207
2007 3 6 54165 -0.0281 0.5316 0.13072
2007 3 7 54166 -0.0253 0.5330 0.12947
2007 3 8 54167 -0.0224 0.5342 0.12839
2007 3 9 54168 -0.0194 0.5355 0.12751
2007 3 10 54169 -0.0165 0.5366 0.12684
2007 3 11 54170 -0.0135 0.5378 0.12635
2007 3 12 54171 -0.0105 0.5389 0.12592
2007 3 13 54172 -0.0075 0.5400 0.12547
2007 3 14 54173 -0.0045 0.5410 0.12493
2007 3 15 54174 -0.0014 0.5420 0.12421
2007 3 16 54175 0.0016 0.5429 0.12323
2007 3 17 54176 0.0047 0.5438 0.12187
2007 3 18 54177 0.0078 0.5447 0.12022
2007 3 19 54178 0.0109 0.5455 0.11837
2007 3 20 54179 0.0141 0.5463 0.11653
2007 3 21 54180 0.0172 0.5470 0.11489
2007 3 22 54181 0.0204 0.5477 0.11359
2007 3 23 54182 0.0236 0.5484 0.11273
2007 3 24 54183 0.0267 0.5490 0.11222
2007 3 25 54184 0.0299 0.5495 0.11198
2007 3 26 54185 0.0332 0.5500 0.11174
2007 3 27 54186 0.0364 0.5505 0.11143
2007 3 28 54187 0.0396 0.5509 0.11101
2007 3 29 54188 0.0428 0.5513 0.11041
2007 3 30 54189 0.0461 0.5516 0.10961
2007 3 31 54190 0.0493 0.5519 0.10867
2007 4 1 54191 0.0526 0.5522 0.10763
2007 4 2 54192 0.0558 0.5524 0.10654
2007 4 3 54193 0.0591 0.5525 0.10550
2007 4 4 54194 0.0623 0.5526 0.10457
2007 4 5 54195 0.0656 0.5527 0.10382
2007 4 6 54196 0.0689 0.5527 0.10330
2007 4 7 54197 0.0721 0.5526 0.10292
2007 4 8 54198 0.0754 0.5525 0.10267
2007 4 9 54199 0.0787 0.5524 0.10254
2007 4 10 54200 0.0819 0.5522 0.10245
2007 4 11 54201 0.0852 0.5520 0.10228
2007 4 12 54202 0.0884 0.5517 0.10192
2007 4 13 54203 0.0917 0.5514 0.10121
2007 4 14 54204 0.0949 0.5510 0.10012
2007 4 15 54205 0.0982 0.5506 0.09875
2007 4 16 54206 0.1014 0.5502 0.09724
2007 4 17 54207 0.1046 0.5497 0.09581
2007 4 18 54208 0.1078 0.5491 0.09458
2007 4 19 54209 0.1110 0.5485 0.09362
2007 4 20 54210 0.1142 0.5478 0.09292
2007 4 21 54211 0.1174 0.5471 0.09249
2007 4 22 54212 0.1206 0.5464 0.09218
2007 4 23 54213 0.1238 0.5456 0.09188
2007 4 24 54214 0.1269 0.5448 0.09148
2007 4 25 54215 0.1300 0.5439 0.09092
2007 4 26 54216 0.1332 0.5429 0.09022
2007 4 27 54217 0.1363 0.5419 0.08936
2007 4 28 54218 0.1394 0.5409 0.08841
2007 4 29 54219 0.1424 0.5398 0.08746
2007 4 30 54220 0.1455 0.5387 0.08662
2007 5 1 54221 0.1485 0.5375 0.08594
2007 5 2 54222 0.1515 0.5363 0.08544
2007 5 3 54223 0.1546 0.5351 0.08513
2007 5 4 54224 0.1575 0.5338 0.08496
2007 5 5 54225 0.1605 0.5324 0.08491
2007 5 6 54226 0.1634 0.5310 0.08500
2007 5 7 54227 0.1664 0.5296 0.08513
2007 5 8 54228 0.1693 0.5281 0.08514
2007 5 9 54229 0.1721 0.5265 0.08500
2007 5 10 54230 0.1750 0.5249 0.08463
2007 5 11 54231 0.1778 0.5233 0.08400
2007 5 12 54232 0.1806 0.5217 0.08317
2007 5 13 54233 0.1834 0.5199 0.08215
2007 5 14 54234 0.1862 0.5182 0.08107
2007 5 15 54235 0.1889 0.5164 0.08020
2007 5 16 54236 0.1916 0.5145 0.07968
2007 5 17 54237 0.1943 0.5126 0.07954
2007 5 18 54238 0.1969 0.5107 0.07972
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)
53854 -54.71 .18 -5.84 .12
53855 -54.84 .17 -6.10 .11
53856 -54.63 .17 -6.44 .34
53857 -54.17 .15 -6.72 .34
53858 -53.74 .14 -6.77 .34
53859 -53.54 .14 -6.61 .34
53860 -53.48 .14 -6.40 .34
53861 -53.39 .14 -6.29 .34
53862 -53.30 .17 -6.22 .34
53863 -53.36 .17 -6.06 .34
53864 -53.61 .22 -5.81 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53854 -0.105 0.072 -0.303 0.120
53855 -0.109 0.068 -0.296 0.110
53856 -0.099 0.068 -0.318 0.340
53857 -0.075 0.060 -0.353 0.340
53858 -0.043 0.056 -0.358 0.340
53859 -0.023 0.056 -0.339 0.340
53860 -0.019 0.056 -0.303 0.340
53861 -0.027 0.056 -0.294 0.340
53862 -0.046 0.068 -0.298 0.340
53863 -0.073 0.068 -0.297 0.340
53864 -0.094 0.088 -0.290 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
<http://maia.usno.navy.mil/conv2003.html> web site in section chapter 5.
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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
<http://maia.usno.navy.mil/conv2003.html>.
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
**************************************************************************