**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
29 June 2006 Vol. XIX No. 026
______________________________________________________________________
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 6 23 53909 .12493 .00003 .30917 .00005 .196220 .000012
6 6 24 53910 .12481 .00003 .30816 .00004 .196130 .000012
6 6 25 53911 .12517 .00002 .30696 .00004 .196220 .000012
6 6 26 53912 .12562 .00002 .30575 .00003 .196321 .000013
6 6 27 53913 .12595 .00002 .30459 .00003 .196310 .000013
6 6 28 53914 .12623 .00002 .30348 .00003 .196163 .000012
6 6 29 53915 .12668 .00002 .30227 .00003 .195814 .000008
_______________________________________________________________________
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 = .0547 + .0762 cos A + .1481 sin A + .0002 cos C - .1912 sin C
y = .3555 + .1395 cos A - .0683 sin A - .1912 cos C - .0002 sin C
UT1-UTC = .1871 - .00051 (MJD - 53920) - (UT2-UT1)
where A = 2*pi*(MJD-53915)/365.25 and C = 2*pi*(MJD-53915)/435.
TAI-UTC(MJD 53916) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53915)**0.80 S t = 0.00025 (MJD-53915)**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 6 30 53916 0.1272 0.3010 0.19524
2006 7 1 53917 0.1275 0.2998 0.19446
2006 7 2 53918 0.1277 0.2986 0.19350
2006 7 3 53919 0.1279 0.2975 0.19246
2006 7 4 53920 0.1279 0.2963 0.19144
2006 7 5 53921 0.1279 0.2952 0.19051
2006 7 6 53922 0.1278 0.2942 0.18976
2006 7 7 53923 0.1276 0.2931 0.18926
2006 7 8 53924 0.1274 0.2920 0.18903
2006 7 9 53925 0.1270 0.2909 0.18902
2006 7 10 53926 0.1267 0.2899 0.18915
2006 7 11 53927 0.1263 0.2888 0.18931
2006 7 12 53928 0.1258 0.2877 0.18936
2006 7 13 53929 0.1253 0.2867 0.18920
2006 7 14 53930 0.1248 0.2856 0.18881
2006 7 15 53931 0.1242 0.2845 0.18822
2006 7 16 53932 0.1236 0.2835 0.18755
2006 7 17 53933 0.1229 0.2824 0.18693
2006 7 18 53934 0.1223 0.2813 0.18650
2006 7 19 53935 0.1216 0.2803 0.18633
2006 7 20 53936 0.1208 0.2792 0.18644
2006 7 21 53937 0.1201 0.2782 0.18680
2006 7 22 53938 0.1193 0.2771 0.18732
2006 7 23 53939 0.1185 0.2761 0.18790
2006 7 24 53940 0.1177 0.2750 0.18844
2006 7 25 53941 0.1169 0.2740 0.18886
2006 7 26 53942 0.1160 0.2730 0.18911
2006 7 27 53943 0.1151 0.2719 0.18916
2006 7 28 53944 0.1142 0.2709 0.18904
2006 7 29 53945 0.1133 0.2699 0.18876
2006 7 30 53946 0.1123 0.2689 0.18839
2006 7 31 53947 0.1114 0.2679 0.18799
2006 8 1 53948 0.1104 0.2669 0.18764
2006 8 2 53949 0.1094 0.2659 0.18740
2006 8 3 53950 0.1084 0.2649 0.18731
2006 8 4 53951 0.1074 0.2640 0.18738
2006 8 5 53952 0.1063 0.2630 0.18760
2006 8 6 53953 0.1052 0.2620 0.18792
2006 8 7 53954 0.1042 0.2611 0.18823
2006 8 8 53955 0.1031 0.2602 0.18841
2006 8 9 53956 0.1019 0.2593 0.18833
2006 8 10 53957 0.1008 0.2584 0.18792
2006 8 11 53958 0.0996 0.2575 0.18720
2006 8 12 53959 0.0985 0.2566 0.18629
2006 8 13 53960 0.0973 0.2557 0.18536
2006 8 14 53961 0.0960 0.2549 0.18458
2006 8 15 53962 0.0948 0.2540 0.18409
2006 8 16 53963 0.0936 0.2532 0.18392
2006 8 17 53964 0.0923 0.2524 0.18405
2006 8 18 53965 0.0910 0.2516 0.18438
2006 8 19 53966 0.0897 0.2508 0.18480
2006 8 20 53967 0.0884 0.2501 0.18521
2006 8 21 53968 0.0870 0.2493 0.18552
2006 8 22 53969 0.0857 0.2486 0.18567
2006 8 23 53970 0.0843 0.2479 0.18564
2006 8 24 53971 0.0829 0.2472 0.18543
2006 8 25 53972 0.0814 0.2465 0.18507
2006 8 26 53973 0.0800 0.2458 0.18462
2006 8 27 53974 0.0785 0.2452 0.18416
2006 8 28 53975 0.0770 0.2446 0.18375
2006 8 29 53976 0.0755 0.2440 0.18344
2006 8 30 53977 0.0740 0.2434 0.18328
2006 8 31 53978 0.0725 0.2429 0.18329
2006 9 1 53979 0.0709 0.2423 0.18346
2006 9 2 53980 0.0693 0.2418 0.18372
2006 9 3 53981 0.0677 0.2413 0.18401
2006 9 4 53982 0.0661 0.2409 0.18419
2006 9 5 53983 0.0645 0.2404 0.18414
2006 9 6 53984 0.0628 0.2400 0.18375
2006 9 7 53985 0.0611 0.2396 0.18299
2006 9 8 53986 0.0595 0.2392 0.18192
2006 9 9 53987 0.0577 0.2389 0.18071
2006 9 10 53988 0.0560 0.2386 0.17955
2006 9 11 53989 0.0543 0.2383 0.17861
2006 9 12 53990 0.0525 0.2380 0.17800
2006 9 13 53991 0.0507 0.2377 0.17770
2006 9 14 53992 0.0489 0.2375 0.17765
2006 9 15 53993 0.0471 0.2373 0.17773
2006 9 16 53994 0.0452 0.2372 0.17780
2006 9 17 53995 0.0434 0.2370 0.17779
2006 9 18 53996 0.0415 0.2369 0.17762
2006 9 19 53997 0.0396 0.2368 0.17726
2006 9 20 53998 0.0377 0.2368 0.17671
2006 9 21 53999 0.0358 0.2367 0.17600
2006 9 22 54000 0.0338 0.2367 0.17517
2006 9 23 54001 0.0319 0.2368 0.17430
2006 9 24 54002 0.0299 0.2368 0.17345
2006 9 25 54003 0.0278 0.2369 0.17268
2006 9 26 54004 0.0258 0.2370 0.17207
2006 9 27 54005 0.0238 0.2372 0.17161
2006 9 28 54006 0.0217 0.2374 0.17132
2006 9 29 54007 0.0197 0.2376 0.17115
2006 9 30 54008 0.0177 0.2378 0.17104
2006 10 1 54009 0.0156 0.2381 0.17089
2006 10 2 54010 0.0135 0.2384 0.17058
2006 10 3 54011 0.0115 0.2388 0.16999
2006 10 4 54012 0.0094 0.2391 0.16906
2006 10 5 54013 0.0073 0.2395 0.16778
2006 10 6 54014 0.0051 0.2400 0.16628
2006 10 7 54015 0.0030 0.2404 0.16472
2006 10 8 54016 0.0009 0.2409 0.16329
2006 10 9 54017 -0.0012 0.2415 0.16216
2006 10 10 54018 -0.0034 0.2420 0.16136
2006 10 11 54019 -0.0055 0.2427 0.16088
2006 10 12 54020 -0.0077 0.2433 0.16059
2006 10 13 54021 -0.0098 0.2440 0.16025
2006 10 14 54022 -0.0120 0.2447 0.15987
2006 10 15 54023 -0.0142 0.2454 0.15936
2006 10 16 54024 -0.0163 0.2462 0.15868
2006 10 17 54025 -0.0185 0.2470 0.15784
2006 10 18 54026 -0.0207 0.2478 0.15684
2006 10 19 54027 -0.0229 0.2487 0.15573
2006 10 20 54028 -0.0250 0.2496 0.15457
2006 10 21 54029 -0.0272 0.2505 0.15343
2006 10 22 54030 -0.0294 0.2515 0.15237
2006 10 23 54031 -0.0316 0.2525 0.15145
2006 10 24 54032 -0.0337 0.2535 0.15070
2006 10 25 54033 -0.0359 0.2546 0.15012
2006 10 26 54034 -0.0381 0.2557 0.14969
2006 10 27 54035 -0.0402 0.2569 0.14935
2006 10 28 54036 -0.0424 0.2580 0.14900
2006 10 29 54037 -0.0445 0.2592 0.14855
2006 10 30 54038 -0.0466 0.2605 0.14787
2006 10 31 54039 -0.0488 0.2618 0.14690
2006 11 1 54040 -0.0509 0.2631 0.14562
2006 11 2 54041 -0.0530 0.2644 0.14408
2006 11 3 54042 -0.0551 0.2658 0.14241
2006 11 4 54043 -0.0572 0.2672 0.14079
2006 11 5 54044 -0.0592 0.2686 0.13939
2006 11 6 54045 -0.0613 0.2701 0.13830
2006 11 7 54046 -0.0633 0.2716 0.13755
2006 11 8 54047 -0.0654 0.2732 0.13705
2006 11 9 54048 -0.0674 0.2747 0.13669
2006 11 10 54049 -0.0694 0.2763 0.13633
2006 11 11 54050 -0.0713 0.2780 0.13587
2006 11 12 54051 -0.0733 0.2796 0.13527
2006 11 13 54052 -0.0752 0.2813 0.13450
2006 11 14 54053 -0.0771 0.2830 0.13358
2006 11 15 54054 -0.0790 0.2848 0.13255
2006 11 16 54055 -0.0809 0.2866 0.13146
2006 11 17 54056 -0.0828 0.2884 0.13039
2006 11 18 54057 -0.0846 0.2902 0.12938
2006 11 19 54058 -0.0864 0.2921 0.12851
2006 11 20 54059 -0.0882 0.2940 0.12781
2006 11 21 54060 -0.0899 0.2959 0.12730
2006 11 22 54061 -0.0916 0.2979 0.12696
2006 11 23 54062 -0.0933 0.2999 0.12673
2006 11 24 54063 -0.0950 0.3019 0.12653
2006 11 25 54064 -0.0966 0.3039 0.12626
2006 11 26 54065 -0.0982 0.3060 0.12581
2006 11 27 54066 -0.0998 0.3080 0.12512
2006 11 28 54067 -0.1013 0.3102 0.12414
2006 11 29 54068 -0.1028 0.3123 0.12293
2006 11 30 54069 -0.1043 0.3145 0.12158
2006 12 1 54070 -0.1058 0.3166 0.12024
2006 12 2 54071 -0.1072 0.3188 0.11905
2006 12 3 54072 -0.1085 0.3211 0.11814
2006 12 4 54073 -0.1099 0.3233 0.11754
2006 12 5 54074 -0.1111 0.3256 0.11722
2006 12 6 54075 -0.1124 0.3279 0.11709
2006 12 7 54076 -0.1136 0.3302 0.11700
2006 12 8 54077 -0.1148 0.3325 0.11685
2006 12 9 54078 -0.1159 0.3349 0.11657
2006 12 10 54079 -0.1170 0.3373 0.11612
2006 12 11 54080 -0.1181 0.3396 0.11552
2006 12 12 54081 -0.1191 0.3420 0.11480
2006 12 13 54082 -0.1201 0.3445 0.11402
2006 12 14 54083 -0.1210 0.3469 0.11324
2006 12 15 54084 -0.1219 0.3494 0.11251
2006 12 16 54085 -0.1227 0.3518 0.11191
2006 12 17 54086 -0.1235 0.3543 0.11146
2006 12 18 54087 -0.1243 0.3568 0.11119
2006 12 19 54088 -0.1250 0.3593 0.11109
2006 12 20 54089 -0.1256 0.3618 0.11111
2006 12 21 54090 -0.1262 0.3644 0.11118
2006 12 22 54091 -0.1268 0.3669 0.11119
2006 12 23 54092 -0.1273 0.3695 0.11102
2006 12 24 54093 -0.1278 0.3720 0.11060
2006 12 25 54094 -0.1282 0.3746 0.10988
2006 12 26 54095 -0.1285 0.3772 0.10890
2006 12 27 54096 -0.1289 0.3798 0.10775
2006 12 28 54097 -0.1291 0.3824 0.10656
2006 12 29 54098 -0.1293 0.3850 0.10548
2006 12 30 54099 -0.1295 0.3876 0.10460
2006 12 31 54100 -0.1296 0.3902 0.10398
2007 1 1 54101 -0.1297 0.3928 0.10360
2007 1 2 54102 -0.1297 0.3954 0.10341
2007 1 3 54103 -0.1297 0.3980 0.10330
2007 1 4 54104 -0.1296 0.4007 0.10318
2007 1 5 54105 -0.1294 0.4033 0.10296
2007 1 6 54106 -0.1292 0.4059 0.10261
2007 1 7 54107 -0.1289 0.4085 0.10215
2007 1 8 54108 -0.1286 0.4111 0.10159
2007 1 9 54109 -0.1282 0.4137 0.10099
2007 1 10 54110 -0.1278 0.4163 0.10039
2007 1 11 54111 -0.1273 0.4189 0.09985
2007 1 12 54112 -0.1267 0.4215 0.09941
2007 1 13 54113 -0.1261 0.4241 0.09910
2007 1 14 54114 -0.1255 0.4267 0.09892
2007 1 15 54115 -0.1248 0.4293 0.09889
2007 1 16 54116 -0.1240 0.4318 0.09896
2007 1 17 54117 -0.1232 0.4344 0.09908
2007 1 18 54118 -0.1224 0.4369 0.09916
2007 1 19 54119 -0.1215 0.4395 0.09909
2007 1 20 54120 -0.1205 0.4420 0.09878
2007 1 21 54121 -0.1195 0.4445 0.09819
2007 1 22 54122 -0.1184 0.4471 0.09733
2007 1 23 54123 -0.1173 0.4496 0.09632
2007 1 24 54124 -0.1161 0.4520 0.09531
2007 1 25 54125 -0.1149 0.4545 0.09446
2007 1 26 54126 -0.1136 0.4570 0.09389
2007 1 27 54127 -0.1123 0.4594 0.09365
2007 1 28 54128 -0.1110 0.4618 0.09372
2007 1 29 54129 -0.1095 0.4642 0.09400
2007 1 30 54130 -0.1081 0.4666 0.09436
2007 1 31 54131 -0.1065 0.4690 0.09468
2007 2 1 54132 -0.1050 0.4714 0.09483
2007 2 2 54133 -0.1034 0.4737 0.09473
2007 2 3 54134 -0.1017 0.4760 0.09441
2007 2 4 54135 -0.1000 0.4783 0.09394
2007 2 5 54136 -0.0982 0.4806 0.09335
2007 2 6 54137 -0.0964 0.4828 0.09271
2007 2 7 54138 -0.0946 0.4850 0.09204
2007 2 8 54139 -0.0927 0.4872 0.09140
2007 2 9 54140 -0.0907 0.4894 0.09087
2007 2 10 54141 -0.0887 0.4916 0.09050
2007 2 11 54142 -0.0867 0.4937 0.09027
2007 2 12 54143 -0.0846 0.4958 0.09017
2007 2 13 54144 -0.0825 0.4979 0.09011
2007 2 14 54145 -0.0804 0.4999 0.09003
2007 2 15 54146 -0.0781 0.5019 0.08984
2007 2 16 54147 -0.0759 0.5039 0.08946
2007 2 17 54148 -0.0736 0.5059 0.08885
2007 2 18 54149 -0.0713 0.5078 0.08785
2007 2 19 54150 -0.0689 0.5097 0.08657
2007 2 20 54151 -0.0665 0.5116 0.08518
2007 2 21 54152 -0.0641 0.5134 0.08384
2007 2 22 54153 -0.0616 0.5152 0.08271
2007 2 23 54154 -0.0591 0.5170 0.08190
2007 2 24 54155 -0.0566 0.5187 0.08138
2007 2 25 54156 -0.0540 0.5204 0.08112
2007 2 26 54157 -0.0513 0.5221 0.08101
2007 2 27 54158 -0.0487 0.5237 0.08104
2007 2 28 54159 -0.0460 0.5253 0.08099
2007 3 1 54160 -0.0433 0.5268 0.08078
2007 3 2 54161 -0.0405 0.5284 0.08036
2007 3 3 54162 -0.0378 0.5299 0.07978
2007 3 4 54163 -0.0350 0.5313 0.07896
2007 3 5 54164 -0.0321 0.5327 0.07807
2007 3 6 54165 -0.0293 0.5341 0.07717
2007 3 7 54166 -0.0264 0.5354 0.07632
2007 3 8 54167 -0.0234 0.5367 0.07559
2007 3 9 54168 -0.0205 0.5380 0.07505
2007 3 10 54169 -0.0175 0.5392 0.07474
2007 3 11 54170 -0.0145 0.5403 0.07459
2007 3 12 54171 -0.0115 0.5415 0.07458
2007 3 13 54172 -0.0085 0.5426 0.07456
2007 3 14 54173 -0.0054 0.5436 0.07441
2007 3 15 54174 -0.0023 0.5446 0.07408
2007 3 16 54175 0.0008 0.5456 0.07343
2007 3 17 54176 0.0039 0.5465 0.07245
2007 3 18 54177 0.0070 0.5474 0.07116
2007 3 19 54178 0.0102 0.5482 0.06969
2007 3 20 54179 0.0133 0.5490 0.06823
2007 3 21 54180 0.0165 0.5497 0.06699
2007 3 22 54181 0.0197 0.5504 0.06610
2007 3 23 54182 0.0229 0.5511 0.06557
2007 3 24 54183 0.0262 0.5517 0.06532
2007 3 25 54184 0.0294 0.5523 0.06531
2007 3 26 54185 0.0327 0.5528 0.06533
2007 3 27 54186 0.0359 0.5533 0.06524
2007 3 28 54187 0.0392 0.5537 0.06496
2007 3 29 54188 0.0425 0.5541 0.06447
2007 3 30 54189 0.0457 0.5544 0.06378
2007 3 31 54190 0.0490 0.5547 0.06295
2007 4 1 54191 0.0523 0.5549 0.06212
2007 4 2 54192 0.0556 0.5551 0.06131
2007 4 3 54193 0.0590 0.5553 0.06053
2007 4 4 54194 0.0623 0.5554 0.05982
2007 4 5 54195 0.0656 0.5554 0.05924
2007 4 6 54196 0.0689 0.5554 0.05882
2007 4 7 54197 0.0722 0.5554 0.05861
2007 4 8 54198 0.0755 0.5553 0.05850
2007 4 9 54199 0.0789 0.5551 0.05847
2007 4 10 54200 0.0822 0.5549 0.05843
2007 4 11 54201 0.0855 0.5547 0.05821
2007 4 12 54202 0.0888 0.5544 0.05776
2007 4 13 54203 0.0921 0.5541 0.05695
2007 4 14 54204 0.0954 0.5537 0.05577
2007 4 15 54205 0.0987 0.5533 0.05426
2007 4 16 54206 0.1020 0.5528 0.05258
2007 4 17 54207 0.1053 0.5523 0.05094
2007 4 18 54208 0.1086 0.5517 0.04951
2007 4 19 54209 0.1118 0.5511 0.04845
2007 4 20 54210 0.1151 0.5504 0.04774
2007 4 21 54211 0.1183 0.5497 0.04733
2007 4 22 54212 0.1216 0.5489 0.04707
2007 4 23 54213 0.1248 0.5481 0.04680
2007 4 24 54214 0.1280 0.5472 0.04640
2007 4 25 54215 0.1312 0.5463 0.04588
2007 4 26 54216 0.1344 0.5453 0.04521
2007 4 27 54217 0.1376 0.5443 0.04435
2007 4 28 54218 0.1407 0.5432 0.04339
2007 4 29 54219 0.1439 0.5421 0.04241
2007 4 30 54220 0.1470 0.5410 0.04152
2007 5 1 54221 0.1501 0.5398 0.04085
2007 5 2 54222 0.1532 0.5385 0.04040
2007 5 3 54223 0.1563 0.5372 0.04018
2007 5 4 54224 0.1593 0.5359 0.04013
2007 5 5 54225 0.1624 0.5345 0.04030
2007 5 6 54226 0.1654 0.5330 0.04067
2007 5 7 54227 0.1684 0.5315 0.04112
2007 5 8 54228 0.1713 0.5300 0.04151
2007 5 9 54229 0.1743 0.5284 0.04172
2007 5 10 54230 0.1772 0.5268 0.04161
2007 5 11 54231 0.1801 0.5251 0.04112
2007 5 12 54232 0.1830 0.5234 0.04033
2007 5 13 54233 0.1858 0.5216 0.03927
2007 5 14 54234 0.1886 0.5198 0.03821
2007 5 15 54235 0.1914 0.5180 0.03730
2007 5 16 54236 0.1942 0.5161 0.03663
2007 5 17 54237 0.1970 0.5141 0.03622
2007 5 18 54238 0.1997 0.5121 0.03614
2007 5 19 54239 0.2024 0.5101 0.03628
2007 5 20 54240 0.2050 0.5080 0.03645
2007 5 21 54241 0.2076 0.5059 0.03650
2007 5 22 54242 0.2102 0.5038 0.03629
2007 5 23 54243 0.2128 0.5016 0.03594
2007 5 24 54244 0.2153 0.4993 0.03546
2007 5 25 54245 0.2178 0.4970 0.03481
2007 5 26 54246 0.2203 0.4947 0.03411
2007 5 27 54247 0.2227 0.4923 0.03342
2007 5 28 54248 0.2251 0.4899 0.03280
2007 5 29 54249 0.2275 0.4875 0.03231
2007 5 30 54250 0.2299 0.4850 0.03206
2007 5 31 54251 0.2321 0.4825 0.03204
2007 6 1 54252 0.2344 0.4799 0.03225
2007 6 2 54253 0.2366 0.4773 0.03262
2007 6 3 54254 0.2388 0.4747 0.03306
2007 6 4 54255 0.2410 0.4720 0.03340
2007 6 5 54256 0.2431 0.4693 0.03356
2007 6 6 54257 0.2452 0.4665 0.03346
2007 6 7 54258 0.2472 0.4637 0.03312
2007 6 8 54259 0.2492 0.4609 0.03257
2007 6 9 54260 0.2512 0.4581 0.03180
2007 6 10 54261 0.2531 0.4552 0.03104
2007 6 11 54262 0.2550 0.4523 0.03039
2007 6 12 54263 0.2568 0.4493 0.03000
2007 6 13 54264 0.2586 0.4463 0.02997
2007 6 14 54265 0.2603 0.4433 0.03028
2007 6 15 54266 0.2621 0.4402 0.03091
2007 6 16 54267 0.2637 0.4372 0.03167
2007 6 17 54268 0.2653 0.4341 0.03248
2007 6 18 54269 0.2669 0.4309 0.03309
2007 6 19 54270 0.2685 0.4277 0.03353
2007 6 20 54271 0.2699 0.4246 0.03382
2007 6 21 54272 0.2714 0.4213 0.03401
2007 6 22 54273 0.2728 0.4181 0.03413
2007 6 23 54274 0.2741 0.4148 0.03429
2007 6 24 54275 0.2754 0.4115 0.03451
2007 6 25 54276 0.2767 0.4082 0.03485
2007 6 26 54277 0.2779 0.4048 0.03538
2007 6 27 54278 0.2791 0.4014 0.03608
2007 6 28 54279 0.2802 0.3981 0.03698
2007 6 29 54280 0.2813 0.3946 0.03806
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)
53896 -56.95 .21 -6.05 .13
53897 -57.03 .23 -6.18 .34
53898 -57.05 .21 -6.24 .14
53899 -57.01 .28 -6.22 .17
53900 -56.90 .28 -6.15 .17
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53896 -0.092 0.084 -0.296 0.130
53897 -0.084 0.091 -0.296 0.340
53898 -0.073 0.084 -0.312 0.140
53899 -0.063 0.111 -0.311 0.170
53900 -0.058 0.111 -0.304 0.170
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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