**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
25 May 2006 Vol. XIX No. 021
______________________________________________________________________
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 5 19 53874 .11139 .00005 .34619 .00006 .216298 .000015
6 5 20 53875 .11158 .00003 .34551 .00006 .215157 .000014
6 5 21 53876 .11189 .00003 .34506 .00005 .213808 .000016
6 5 22 53877 .11231 .00002 .34461 .00004 .212289 .000016
6 5 23 53878 .11291 .00001 .34405 .00003 .210713 .000016
6 5 24 53879 .11363 .00001 .34327 .00003 .209195 .000014
6 5 25 53880 .11445 .00001 .34219 .00003 .207865 .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 = .0448 - .0178 cos A + .1624 sin A + .0910 cos C - .1640 sin C
y = .3561 + .1503 cos A + .0228 sin A - .1640 cos C - .0910 sin C
UT1-UTC = .2243 - .00046 (MJD - 53885) - (UT2-UT1)
where A = 2*pi*(MJD-53880)/365.25 and C = 2*pi*(MJD-53880)/435.
TAI-UTC(MJD 53881) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53880)**0.80 S t = 0.00025 (MJD-53880)**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 26 53881 0.1153 0.3410 0.20682
2006 5 27 53882 0.1160 0.3399 0.20605
2006 5 28 53883 0.1166 0.3389 0.20552
2006 5 29 53884 0.1172 0.3379 0.20515
2006 5 30 53885 0.1176 0.3369 0.20483
2006 5 31 53886 0.1180 0.3360 0.20446
2006 6 1 53887 0.1183 0.3350 0.20397
2006 6 2 53888 0.1186 0.3341 0.20336
2006 6 3 53889 0.1188 0.3332 0.20263
2006 6 4 53890 0.1190 0.3322 0.20180
2006 6 5 53891 0.1191 0.3313 0.20087
2006 6 6 53892 0.1192 0.3304 0.19990
2006 6 7 53893 0.1192 0.3295 0.19892
2006 6 8 53894 0.1192 0.3286 0.19802
2006 6 9 53895 0.1192 0.3276 0.19728
2006 6 10 53896 0.1191 0.3267 0.19676
2006 6 11 53897 0.1191 0.3258 0.19646
2006 6 12 53898 0.1190 0.3248 0.19632
2006 6 13 53899 0.1189 0.3238 0.19625
2006 6 14 53900 0.1187 0.3229 0.19613
2006 6 15 53901 0.1186 0.3219 0.19583
2006 6 16 53902 0.1184 0.3209 0.19530
2006 6 17 53903 0.1183 0.3199 0.19454
2006 6 18 53904 0.1181 0.3190 0.19362
2006 6 19 53905 0.1179 0.3180 0.19265
2006 6 20 53906 0.1176 0.3169 0.19177
2006 6 21 53907 0.1174 0.3159 0.19112
2006 6 22 53908 0.1172 0.3149 0.19077
2006 6 23 53909 0.1169 0.3139 0.19075
2006 6 24 53910 0.1166 0.3129 0.19102
2006 6 25 53911 0.1164 0.3118 0.19147
2006 6 26 53912 0.1161 0.3108 0.19201
2006 6 27 53913 0.1158 0.3098 0.19253
2006 6 28 53914 0.1155 0.3087 0.19295
2006 6 29 53915 0.1152 0.3077 0.19322
2006 6 30 53916 0.1148 0.3066 0.19332
2006 7 1 53917 0.1145 0.3056 0.19328
2006 7 2 53918 0.1141 0.3045 0.19315
2006 7 3 53919 0.1138 0.3034 0.19299
2006 7 4 53920 0.1134 0.3024 0.19285
2006 7 5 53921 0.1130 0.3013 0.19282
2006 7 6 53922 0.1126 0.3002 0.19294
2006 7 7 53923 0.1122 0.2992 0.19326
2006 7 8 53924 0.1118 0.2981 0.19378
2006 7 9 53925 0.1114 0.2970 0.19448
2006 7 10 53926 0.1109 0.2960 0.19527
2006 7 11 53927 0.1105 0.2949 0.19602
2006 7 12 53928 0.1100 0.2939 0.19659
2006 7 13 53929 0.1095 0.2928 0.19687
2006 7 14 53930 0.1090 0.2917 0.19684
2006 7 15 53931 0.1085 0.2907 0.19655
2006 7 16 53932 0.1080 0.2896 0.19613
2006 7 17 53933 0.1075 0.2885 0.19575
2006 7 18 53934 0.1069 0.2875 0.19554
2006 7 19 53935 0.1063 0.2864 0.19560
2006 7 20 53936 0.1058 0.2854 0.19595
2006 7 21 53937 0.1052 0.2843 0.19656
2006 7 22 53938 0.1046 0.2833 0.19735
2006 7 23 53939 0.1039 0.2822 0.19820
2006 7 24 53940 0.1033 0.2812 0.19902
2006 7 25 53941 0.1027 0.2802 0.19973
2006 7 26 53942 0.1020 0.2791 0.20028
2006 7 27 53943 0.1013 0.2781 0.20064
2006 7 28 53944 0.1006 0.2771 0.20082
2006 7 29 53945 0.0999 0.2761 0.20088
2006 7 30 53946 0.0991 0.2751 0.20087
2006 7 31 53947 0.0984 0.2741 0.20084
2006 8 1 53948 0.0976 0.2731 0.20087
2006 8 2 53949 0.0968 0.2721 0.20101
2006 8 3 53950 0.0960 0.2712 0.20131
2006 8 4 53951 0.0952 0.2702 0.20178
2006 8 5 53952 0.0943 0.2693 0.20241
2006 8 6 53953 0.0935 0.2683 0.20314
2006 8 7 53954 0.0926 0.2674 0.20387
2006 8 8 53955 0.0917 0.2665 0.20447
2006 8 9 53956 0.0908 0.2655 0.20479
2006 8 10 53957 0.0898 0.2646 0.20478
2006 8 11 53958 0.0888 0.2638 0.20444
2006 8 12 53959 0.0879 0.2629 0.20390
2006 8 13 53960 0.0868 0.2620 0.20332
2006 8 14 53961 0.0857 0.2612 0.20288
2006 8 15 53962 0.0847 0.2603 0.20271
2006 8 16 53963 0.0836 0.2595 0.20285
2006 8 17 53964 0.0826 0.2587 0.20326
2006 8 18 53965 0.0815 0.2579 0.20387
2006 8 19 53966 0.0804 0.2571 0.20456
2006 8 20 53967 0.0792 0.2563 0.20524
2006 8 21 53968 0.0780 0.2556 0.20581
2006 8 22 53969 0.0769 0.2549 0.20622
2006 8 23 53970 0.0757 0.2541 0.20644
2006 8 24 53971 0.0744 0.2534 0.20648
2006 8 25 53972 0.0732 0.2527 0.20638
2006 8 26 53973 0.0719 0.2521 0.20619
2006 8 27 53974 0.0706 0.2514 0.20597
2006 8 28 53975 0.0693 0.2508 0.20578
2006 8 29 53976 0.0680 0.2502 0.20569
2006 8 30 53977 0.0666 0.2496 0.20574
2006 8 31 53978 0.0653 0.2490 0.20594
2006 9 1 53979 0.0639 0.2485 0.20628
2006 9 2 53980 0.0624 0.2479 0.20673
2006 9 3 53981 0.0610 0.2474 0.20720
2006 9 4 53982 0.0595 0.2469 0.20756
2006 9 5 53983 0.0581 0.2465 0.20770
2006 9 6 53984 0.0565 0.2460 0.20750
2006 9 7 53985 0.0550 0.2456 0.20693
2006 9 8 53986 0.0535 0.2452 0.20595
2006 9 9 53987 0.0519 0.2448 0.20483
2006 9 10 53988 0.0503 0.2445 0.20376
2006 9 11 53989 0.0487 0.2442 0.20292
2006 9 12 53990 0.0471 0.2439 0.20240
2006 9 13 53991 0.0454 0.2436 0.20221
2006 9 14 53992 0.0438 0.2433 0.20226
2006 9 15 53993 0.0421 0.2431 0.20245
2006 9 16 53994 0.0404 0.2429 0.20264
2006 9 17 53995 0.0387 0.2427 0.20275
2006 9 18 53996 0.0369 0.2426 0.20271
2006 9 19 53997 0.0352 0.2425 0.20248
2006 9 20 53998 0.0334 0.2424 0.20207
2006 9 21 53999 0.0316 0.2423 0.20150
2006 9 22 54000 0.0298 0.2423 0.20083
2006 9 23 54001 0.0279 0.2423 0.20010
2006 9 24 54002 0.0261 0.2423 0.19940
2006 9 25 54003 0.0242 0.2424 0.19879
2006 9 26 54004 0.0224 0.2424 0.19832
2006 9 27 54005 0.0205 0.2426 0.19800
2006 9 28 54006 0.0186 0.2427 0.19785
2006 9 29 54007 0.0166 0.2429 0.19781
2006 9 30 54008 0.0147 0.2431 0.19783
2006 10 1 54009 0.0128 0.2433 0.19780
2006 10 2 54010 0.0108 0.2436 0.19761
2006 10 3 54011 0.0088 0.2439 0.19714
2006 10 4 54012 0.0068 0.2442 0.19633
2006 10 5 54013 0.0048 0.2445 0.19517
2006 10 6 54014 0.0028 0.2449 0.19379
2006 10 7 54015 0.0008 0.2453 0.19235
2006 10 8 54016 -0.0012 0.2458 0.19105
2006 10 9 54017 -0.0033 0.2463 0.19004
2006 10 10 54018 -0.0053 0.2468 0.18938
2006 10 11 54019 -0.0074 0.2474 0.18902
2006 10 12 54020 -0.0094 0.2479 0.18887
2006 10 13 54021 -0.0115 0.2486 0.18877
2006 10 14 54022 -0.0136 0.2492 0.18863
2006 10 15 54023 -0.0156 0.2499 0.18836
2006 10 16 54024 -0.0177 0.2506 0.18793
2006 10 17 54025 -0.0198 0.2514 0.18731
2006 10 18 54026 -0.0219 0.2521 0.18654
2006 10 19 54027 -0.0240 0.2530 0.18566
2006 10 20 54028 -0.0261 0.2538 0.18472
2006 10 21 54029 -0.0282 0.2547 0.18380
2006 10 22 54030 -0.0302 0.2556 0.18295
2006 10 23 54031 -0.0323 0.2566 0.18224
2006 10 24 54032 -0.0344 0.2575 0.18169
2006 10 25 54033 -0.0365 0.2586 0.18132
2006 10 26 54034 -0.0386 0.2596 0.18109
2006 10 27 54035 -0.0407 0.2607 0.18094
2006 10 28 54036 -0.0427 0.2618 0.18079
2006 10 29 54037 -0.0448 0.2630 0.18052
2006 10 30 54038 -0.0469 0.2641 0.18004
2006 10 31 54039 -0.0489 0.2654 0.17926
2006 11 1 54040 -0.0510 0.2666 0.17816
2006 11 2 54041 -0.0530 0.2679 0.17680
2006 11 3 54042 -0.0550 0.2692 0.17531
2006 11 4 54043 -0.0570 0.2706 0.17388
2006 11 5 54044 -0.0590 0.2719 0.17265
2006 11 6 54045 -0.0610 0.2734 0.17175
2006 11 7 54046 -0.0630 0.2748 0.17118
2006 11 8 54047 -0.0650 0.2763 0.17086
2006 11 9 54048 -0.0669 0.2778 0.17067
2006 11 10 54049 -0.0688 0.2793 0.17048
2006 11 11 54050 -0.0707 0.2809 0.17019
2006 11 12 54051 -0.0726 0.2825 0.16975
2006 11 13 54052 -0.0745 0.2841 0.16914
2006 11 14 54053 -0.0764 0.2858 0.16837
2006 11 15 54054 -0.0782 0.2875 0.16749
2006 11 16 54055 -0.0800 0.2892 0.16654
2006 11 17 54056 -0.0818 0.2910 0.16559
2006 11 18 54057 -0.0836 0.2927 0.16471
2006 11 19 54058 -0.0853 0.2946 0.16394
2006 11 20 54059 -0.0870 0.2964 0.16333
2006 11 21 54060 -0.0887 0.2983 0.16289
2006 11 22 54061 -0.0904 0.3001 0.16260
2006 11 23 54062 -0.0920 0.3021 0.16240
2006 11 24 54063 -0.0936 0.3040 0.16222
2006 11 25 54064 -0.0952 0.3060 0.16194
2006 11 26 54065 -0.0967 0.3080 0.16148
2006 11 27 54066 -0.0983 0.3100 0.16077
2006 11 28 54067 -0.0997 0.3121 0.15979
2006 11 29 54068 -0.1012 0.3141 0.15859
2006 11 30 54069 -0.1026 0.3162 0.15728
2006 12 1 54070 -0.1040 0.3183 0.15599
2006 12 2 54071 -0.1054 0.3205 0.15488
2006 12 3 54072 -0.1067 0.3227 0.15406
2006 12 4 54073 -0.1080 0.3249 0.15357
2006 12 5 54074 -0.1092 0.3271 0.15336
2006 12 6 54075 -0.1105 0.3293 0.15335
2006 12 7 54076 -0.1116 0.3316 0.15339
2006 12 8 54077 -0.1128 0.3339 0.15337
2006 12 9 54078 -0.1139 0.3362 0.15319
2006 12 10 54079 -0.1149 0.3385 0.15284
2006 12 11 54080 -0.1159 0.3408 0.15231
2006 12 12 54081 -0.1169 0.3432 0.15165
2006 12 13 54082 -0.1178 0.3455 0.15091
2006 12 14 54083 -0.1187 0.3479 0.15017
2006 12 15 54084 -0.1196 0.3503 0.14950
2006 12 16 54085 -0.1204 0.3527 0.14895
2006 12 17 54086 -0.1211 0.3552 0.14858
2006 12 18 54087 -0.1218 0.3576 0.14840
2006 12 19 54088 -0.1225 0.3601 0.14843
2006 12 20 54089 -0.1231 0.3625 0.14861
2006 12 21 54090 -0.1237 0.3650 0.14888
2006 12 22 54091 -0.1242 0.3675 0.14911
2006 12 23 54092 -0.1247 0.3700 0.14917
2006 12 24 54093 -0.1251 0.3725 0.14897
2006 12 25 54094 -0.1255 0.3750 0.14847
2006 12 26 54095 -0.1258 0.3775 0.14772
2006 12 27 54096 -0.1261 0.3801 0.14681
2006 12 28 54097 -0.1263 0.3826 0.14590
2006 12 29 54098 -0.1265 0.3852 0.14514
2006 12 30 54099 -0.1266 0.3877 0.14467
2006 12 31 54100 -0.1267 0.3903 0.14451
2007 1 1 54101 -0.1267 0.3928 0.14464
2007 1 2 54102 -0.1267 0.3954 0.14492
2007 1 3 54103 -0.1266 0.3979 0.14521
2007 1 4 54104 -0.1265 0.4005 0.14544
2007 1 5 54105 -0.1263 0.4031 0.14552
2007 1 6 54106 -0.1260 0.4056 0.14543
2007 1 7 54107 -0.1258 0.4082 0.14519
2007 1 8 54108 -0.1254 0.4108 0.14483
2007 1 9 54109 -0.1250 0.4133 0.14442
2007 1 10 54110 -0.1246 0.4159 0.14406
2007 1 11 54111 -0.1241 0.4184 0.14379
2007 1 12 54112 -0.1235 0.4210 0.14362
2007 1 13 54113 -0.1229 0.4235 0.14358
2007 1 14 54114 -0.1223 0.4261 0.14376
2007 1 15 54115 -0.1216 0.4286 0.14408
2007 1 16 54116 -0.1208 0.4311 0.14449
2007 1 17 54117 -0.1200 0.4336 0.14492
2007 1 18 54118 -0.1191 0.4361 0.14528
2007 1 19 54119 -0.1182 0.4386 0.14547
2007 1 20 54120 -0.1173 0.4411 0.14540
2007 1 21 54121 -0.1162 0.4436 0.14510
2007 1 22 54122 -0.1152 0.4461 0.14458
2007 1 23 54123 -0.1141 0.4485 0.14383
2007 1 24 54124 -0.1129 0.4509 0.14300
2007 1 25 54125 -0.1117 0.4534 0.14225
2007 1 26 54126 -0.1104 0.4558 0.14172
2007 1 27 54127 -0.1091 0.4582 0.14152
2007 1 28 54128 -0.1077 0.4605 0.14155
2007 1 29 54129 -0.1063 0.4629 0.14181
2007 1 30 54130 -0.1048 0.4652 0.14214
2007 1 31 54131 -0.1033 0.4676 0.14239
2007 2 1 54132 -0.1017 0.4699 0.14250
2007 2 2 54133 -0.1001 0.4722 0.14238
2007 2 3 54134 -0.0984 0.4744 0.14201
2007 2 4 54135 -0.0967 0.4767 0.14140
2007 2 5 54136 -0.0950 0.4789 0.14063
2007 2 6 54137 -0.0932 0.4811 0.13978
2007 2 7 54138 -0.0913 0.4833 0.13892
2007 2 8 54139 -0.0894 0.4854 0.13816
2007 2 9 54140 -0.0875 0.4875 0.13753
2007 2 10 54141 -0.0855 0.4896 0.13709
2007 2 11 54142 -0.0835 0.4917 0.13686
2007 2 12 54143 -0.0814 0.4938 0.13676
2007 2 13 54144 -0.0793 0.4958 0.13674
2007 2 14 54145 -0.0772 0.4978 0.13675
2007 2 15 54146 -0.0750 0.4997 0.13667
2007 2 16 54147 -0.0728 0.5017 0.13629
2007 2 17 54148 -0.0705 0.5036 0.13556
2007 2 18 54149 -0.0682 0.5055 0.13450
2007 2 19 54150 -0.0658 0.5073 0.13322
2007 2 20 54151 -0.0634 0.5091 0.13191
2007 2 21 54152 -0.0610 0.5109 0.13073
2007 2 22 54153 -0.0586 0.5127 0.12981
2007 2 23 54154 -0.0561 0.5144 0.12918
2007 2 24 54155 -0.0536 0.5161 0.12892
2007 2 25 54156 -0.0510 0.5177 0.12901
2007 2 26 54157 -0.0484 0.5194 0.12928
2007 2 27 54158 -0.0458 0.5209 0.12956
2007 2 28 54159 -0.0431 0.5225 0.12971
2007 3 1 54160 -0.0405 0.5240 0.12962
2007 3 2 54161 -0.0377 0.5255 0.12925
2007 3 3 54162 -0.0350 0.5269 0.12864
2007 3 4 54163 -0.0322 0.5283 0.12779
2007 3 5 54164 -0.0294 0.5297 0.12686
2007 3 6 54165 -0.0266 0.5310 0.12593
2007 3 7 54166 -0.0238 0.5323 0.12500
2007 3 8 54167 -0.0209 0.5336 0.12412
2007 3 9 54168 -0.0180 0.5348 0.12340
2007 3 10 54169 -0.0151 0.5359 0.12289
2007 3 11 54170 -0.0121 0.5371 0.12252
2007 3 12 54171 -0.0091 0.5382 0.12222
2007 3 13 54172 -0.0062 0.5392 0.12184
2007 3 14 54173 -0.0032 0.5402 0.12144
2007 3 15 54174 -0.0001 0.5412 0.12085
2007 3 16 54175 0.0029 0.5421 0.11989
2007 3 17 54176 0.0060 0.5430 0.11855
2007 3 18 54177 0.0090 0.5438 0.11685
2007 3 19 54178 0.0121 0.5446 0.11490
2007 3 20 54179 0.0152 0.5454 0.11290
2007 3 21 54180 0.0184 0.5461 0.11110
2007 3 22 54181 0.0215 0.5468 0.10964
2007 3 23 54182 0.0246 0.5474 0.10858
2007 3 24 54183 0.0278 0.5480 0.10787
2007 3 25 54184 0.0310 0.5485 0.10736
2007 3 26 54185 0.0341 0.5490 0.10686
2007 3 27 54186 0.0373 0.5494 0.10625
2007 3 28 54187 0.0405 0.5498 0.10545
2007 3 29 54188 0.0437 0.5502 0.10448
2007 3 30 54189 0.0469 0.5505 0.10335
2007 3 31 54190 0.0501 0.5508 0.10205
2007 4 1 54191 0.0533 0.5510 0.10071
2007 4 2 54192 0.0566 0.5512 0.09936
2007 4 3 54193 0.0598 0.5513 0.09810
2007 4 4 54194 0.0630 0.5514 0.09700
2007 4 5 54195 0.0662 0.5514 0.09610
2007 4 6 54196 0.0694 0.5514 0.09546
2007 4 7 54197 0.0727 0.5513 0.09505
2007 4 8 54198 0.0759 0.5512 0.09486
2007 4 9 54199 0.0791 0.5511 0.09469
2007 4 10 54200 0.0823 0.5509 0.09450
2007 4 11 54201 0.0855 0.5506 0.09423
2007 4 12 54202 0.0888 0.5503 0.09374
2007 4 13 54203 0.0920 0.5500 0.09291
2007 4 14 54204 0.0952 0.5496 0.09178
2007 4 15 54205 0.0984 0.5492 0.09036
2007 4 16 54206 0.1015 0.5487 0.08879
2007 4 17 54207 0.1047 0.5482 0.08728
2007 4 18 54208 0.1079 0.5476 0.08601
2007 4 19 54209 0.1110 0.5470 0.08510
2007 4 20 54210 0.1142 0.5463 0.08459
2007 4 21 54211 0.1173 0.5456 0.08431
2007 4 22 54212 0.1205 0.5448 0.08414
2007 4 23 54213 0.1236 0.5440 0.08401
2007 4 24 54214 0.1267 0.5432 0.08381
2007 4 25 54215 0.1298 0.5423 0.08349
2007 4 26 54216 0.1328 0.5413 0.08304
2007 4 27 54217 0.1359 0.5403 0.08240
2007 4 28 54218 0.1389 0.5393 0.08163
2007 4 29 54219 0.1420 0.5382 0.08083
2007 4 30 54220 0.1450 0.5370 0.08005
2007 5 1 54221 0.1480 0.5359 0.07940
2007 5 2 54222 0.1509 0.5346 0.07887
2007 5 3 54223 0.1539 0.5333 0.07845
2007 5 4 54224 0.1568 0.5320 0.07815
2007 5 5 54225 0.1598 0.5307 0.07800
2007 5 6 54226 0.1627 0.5293 0.07796
2007 5 7 54227 0.1655 0.5278 0.07796
2007 5 8 54228 0.1684 0.5263 0.07791
2007 5 9 54229 0.1712 0.5247 0.07770
2007 5 10 54230 0.1740 0.5232 0.07726
2007 5 11 54231 0.1768 0.5215 0.07653
2007 5 12 54232 0.1796 0.5198 0.07551
2007 5 13 54233 0.1823 0.5181 0.07436
2007 5 14 54234 0.1850 0.5164 0.07325
2007 5 15 54235 0.1877 0.5145 0.07235
2007 5 16 54236 0.1904 0.5127 0.07176
2007 5 17 54237 0.1930 0.5108 0.07152
2007 5 18 54238 0.1956 0.5089 0.07154
2007 5 19 54239 0.1982 0.5069 0.07171
2007 5 20 54240 0.2007 0.5049 0.07195
2007 5 21 54241 0.2032 0.5028 0.07213
2007 5 22 54242 0.2057 0.5007 0.07212
2007 5 23 54243 0.2082 0.4986 0.07195
2007 5 24 54244 0.2106 0.4964 0.07166
2007 5 25 54245 0.2130 0.4941 0.07130
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)
53865 -53.93 .35 -5.64 .14
53866 -54.25 .35 -5.69 .14
53867 -54.49 .35 -5.93 .14
53868 -54.64 .45 -6.22 .16
53869 -54.69 .36 -6.42 .12
53870 -54.65 .36 -6.49 .12
53871 -54.56 .20 -6.49 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53865 -0.098 0.139 -0.297 0.140
53866 -0.107 0.139 -0.310 0.140
53867 -0.113 0.139 -0.309 0.140
53868 -0.111 0.179 -0.309 0.160
53869 -0.101 0.143 -0.325 0.120
53870 -0.087 0.143 -0.346 0.120
53871 -0.076 0.080 -0.354 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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