**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
31 August 2006 Vol. XIX No. 035
______________________________________________________________________
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 December 31, 2006. *
* Last positive leap second introduced in UTC on December 31, 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 8 25 53972 .09059 .00003 .25375 .00004 .173887 .000018
6 8 26 53973 .08969 .00003 .25368 .00004 .173180 .000019
6 8 27 53974 .08857 .00003 .25380 .00004 .172465 .000019
6 8 28 53975 .08717 .00002 .25384 .00004 .171762 .000018
6 8 29 53976 .08585 .00002 .25380 .00003 .171151 .000019
6 8 30 53977 .08462 .00001 .25384 .00004 .170671 .000016
6 8 31 53978 .08338 .00001 .25379 .00003 .170379 .000011
_______________________________________________________________________
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 = .0523 + .1780 cos A + .0122 sin A - .1432 cos C - .1286 sin C
y = .3534 + .0174 cos A - .1539 sin A - .1286 cos C + .1432 sin C
UT1-UTC = .1110 - .00062 (MJD - 53983) - (UT2-UT1)
where A = 2*pi*(MJD-53978)/365.25 and C = 2*pi*(MJD-53978)/435.
TAI-UTC(MJD 53979) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53978)**0.80 S t = 0.00025 (MJD-53978)**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 9 1 53979 0.0821 0.2535 0.17027
2006 9 2 53980 0.0808 0.2532 0.17027
2006 9 3 53981 0.0794 0.2528 0.17027
2006 9 4 53982 0.0780 0.2524 0.17011
2006 9 5 53983 0.0764 0.2519 0.16971
2006 9 6 53984 0.0749 0.2514 0.16898
2006 9 7 53985 0.0732 0.2509 0.16792
2006 9 8 53986 0.0716 0.2504 0.16657
2006 9 9 53987 0.0699 0.2499 0.16506
2006 9 10 53988 0.0682 0.2494 0.16357
2006 9 11 53989 0.0664 0.2489 0.16231
2006 9 12 53990 0.0647 0.2484 0.16134
2006 9 13 53991 0.0629 0.2480 0.16069
2006 9 14 53992 0.0611 0.2475 0.16028
2006 9 15 53993 0.0592 0.2471 0.15998
2006 9 16 53994 0.0573 0.2467 0.15967
2006 9 17 53995 0.0555 0.2463 0.15928
2006 9 18 53996 0.0536 0.2459 0.15873
2006 9 19 53997 0.0516 0.2456 0.15799
2006 9 20 53998 0.0497 0.2453 0.15706
2006 9 21 53999 0.0477 0.2450 0.15596
2006 9 22 54000 0.0457 0.2447 0.15473
2006 9 23 54001 0.0437 0.2445 0.15344
2006 9 24 54002 0.0417 0.2443 0.15217
2006 9 25 54003 0.0397 0.2441 0.15100
2006 9 26 54004 0.0376 0.2440 0.14995
2006 9 27 54005 0.0356 0.2438 0.14905
2006 9 28 54006 0.0335 0.2438 0.14829
2006 9 29 54007 0.0314 0.2437 0.14763
2006 9 30 54008 0.0293 0.2437 0.14700
2006 10 1 54009 0.0271 0.2437 0.14631
2006 10 2 54010 0.0250 0.2437 0.14544
2006 10 3 54011 0.0228 0.2438 0.14429
2006 10 4 54012 0.0207 0.2439 0.14278
2006 10 5 54013 0.0185 0.2441 0.14091
2006 10 6 54014 0.0163 0.2442 0.13878
2006 10 7 54015 0.0141 0.2444 0.13657
2006 10 8 54016 0.0119 0.2447 0.13448
2006 10 9 54017 0.0096 0.2450 0.13266
2006 10 10 54018 0.0074 0.2453 0.13119
2006 10 11 54019 0.0051 0.2456 0.13002
2006 10 12 54020 0.0029 0.2460 0.12906
2006 10 13 54021 0.0006 0.2464 0.12816
2006 10 14 54022 -0.0017 0.2468 0.12723
2006 10 15 54023 -0.0039 0.2473 0.12619
2006 10 16 54024 -0.0062 0.2478 0.12501
2006 10 17 54025 -0.0085 0.2484 0.12367
2006 10 18 54026 -0.0108 0.2489 0.12219
2006 10 19 54027 -0.0131 0.2496 0.12062
2006 10 20 54028 -0.0154 0.2502 0.11901
2006 10 21 54029 -0.0177 0.2509 0.11743
2006 10 22 54030 -0.0200 0.2516 0.11592
2006 10 23 54031 -0.0223 0.2524 0.11456
2006 10 24 54032 -0.0246 0.2532 0.11337
2006 10 25 54033 -0.0269 0.2540 0.11236
2006 10 26 54034 -0.0292 0.2548 0.11149
2006 10 27 54035 -0.0315 0.2557 0.11070
2006 10 28 54036 -0.0337 0.2566 0.10991
2006 10 29 54037 -0.0360 0.2576 0.10901
2006 10 30 54038 -0.0383 0.2586 0.10788
2006 10 31 54039 -0.0406 0.2596 0.10646
2006 11 1 54040 -0.0428 0.2607 0.10471
2006 11 2 54041 -0.0451 0.2618 0.10270
2006 11 3 54042 -0.0473 0.2630 0.10056
2006 11 4 54043 -0.0495 0.2641 0.09846
2006 11 5 54044 -0.0518 0.2653 0.09658
2006 11 6 54045 -0.0540 0.2666 0.09503
2006 11 7 54046 -0.0562 0.2679 0.09380
2006 11 8 54047 -0.0583 0.2692 0.09283
2006 11 9 54048 -0.0605 0.2705 0.09200
2006 11 10 54049 -0.0626 0.2719 0.09118
2006 11 11 54050 -0.0648 0.2733 0.09026
2006 11 12 54051 -0.0669 0.2748 0.08921
2006 11 13 54052 -0.0690 0.2763 0.08800
2006 11 14 54053 -0.0710 0.2778 0.08665
2006 11 15 54054 -0.0731 0.2793 0.08521
2006 11 16 54055 -0.0751 0.2809 0.08372
2006 11 17 54056 -0.0771 0.2825 0.08225
2006 11 18 54057 -0.0791 0.2842 0.08086
2006 11 19 54058 -0.0811 0.2859 0.07962
2006 11 20 54059 -0.0830 0.2876 0.07855
2006 11 21 54060 -0.0849 0.2893 0.07768
2006 11 22 54061 -0.0868 0.2911 0.07698
2006 11 23 54062 -0.0886 0.2929 0.07640
2006 11 24 54063 -0.0904 0.2947 0.07584
2006 11 25 54064 -0.0922 0.2966 0.07522
2006 11 26 54065 -0.0940 0.2985 0.07442
2006 11 27 54066 -0.0957 0.3004 0.07338
2006 11 28 54067 -0.0974 0.3024 0.07206
2006 11 29 54068 -0.0991 0.3043 0.07052
2006 11 30 54069 -0.1007 0.3064 0.06885
2006 12 1 54070 -0.1023 0.3084 0.06719
2006 12 2 54071 -0.1038 0.3104 0.06569
2006 12 3 54072 -0.1054 0.3125 0.06448
2006 12 4 54073 -0.1069 0.3147 0.06359
2006 12 5 54074 -0.1083 0.3168 0.06298
2006 12 6 54075 -0.1097 0.3190 0.06255
2006 12 7 54076 -0.1111 0.3212 0.06217
2006 12 8 54077 -0.1124 0.3234 0.06172
2006 12 9 54078 -0.1137 0.3256 0.06114
2006 12 10 54079 -0.1149 0.3279 0.06039
2006 12 11 54080 -0.1161 0.3301 0.05949
2006 12 12 54081 -0.1173 0.3325 0.05847
2006 12 13 54082 -0.1184 0.3348 0.05739
2006 12 14 54083 -0.1195 0.3371 0.05631
2006 12 15 54084 -0.1205 0.3395 0.05517
2006 12 16 54085 -0.1215 0.3419 0.05415
2006 12 17 54086 -0.1224 0.3443 0.05329
2006 12 18 54087 -0.1233 0.3467 0.05261
2006 12 19 54088 -0.1242 0.3491 0.05210
2006 12 20 54089 -0.1250 0.3516 0.05172
2006 12 21 54090 -0.1257 0.3541 0.05139
2006 12 22 54091 -0.1264 0.3566 0.05101
2006 12 23 54092 -0.1271 0.3591 0.05046
2006 12 24 54093 -0.1277 0.3616 0.04967
2006 12 25 54094 -0.1282 0.3641 0.04860
2006 12 26 54095 -0.1288 0.3666 0.04728
2006 12 27 54096 -0.1292 0.3692 0.04583
2006 12 28 54097 -0.1296 0.3717 0.04436
2006 12 29 54098 -0.1300 0.3743 0.04302
2006 12 30 54099 -0.1303 0.3769 0.04192
2006 12 31 54100 -0.1305 0.3795 0.04110
2007 1 1 54101 -0.1307 0.3821 0.04056
2007 1 2 54102 -0.1309 0.3847 0.04020
2007 1 3 54103 -0.1310 0.3873 0.03993
2007 1 4 54104 -0.1310 0.3899 0.03961
2007 1 5 54105 -0.1310 0.3925 0.03917
2007 1 6 54106 -0.1309 0.3952 0.03855
2007 1 7 54107 -0.1308 0.3978 0.03776
2007 1 8 54108 -0.1307 0.4004 0.03682
2007 1 9 54109 -0.1304 0.4031 0.03580
2007 1 10 54110 -0.1302 0.4057 0.03476
2007 1 11 54111 -0.1298 0.4083 0.03375
2007 1 12 54112 -0.1295 0.4110 0.03285
2007 1 13 54113 -0.1290 0.4136 0.03209
2007 1 14 54114 -0.1285 0.4162 0.03150
2007 1 15 54115 -0.1280 0.4188 0.03108
2007 1 16 54116 -0.1274 0.4214 0.03080
2007 1 17 54117 -0.1268 0.4241 0.03059
2007 1 18 54118 -0.1261 0.4267 0.03036
2007 1 19 54119 -0.1253 0.4293 0.02998
2007 1 20 54120 -0.1245 0.4319 0.02935
2007 1 21 54121 -0.1237 0.4344 0.02841
2007 1 22 54122 -0.1227 0.4370 0.02719
2007 1 23 54123 -0.1218 0.4396 0.02579
2007 1 24 54124 -0.1208 0.4421 0.02434
2007 1 25 54125 -0.1197 0.4447 0.02301
2007 1 26 54126 -0.1186 0.4472 0.02191
2007 1 27 54127 -0.1174 0.4497 0.02111
2007 1 28 54128 -0.1162 0.4522 0.02058
2007 1 29 54129 -0.1150 0.4547 0.02026
2007 1 30 54130 -0.1137 0.4572 0.02004
2007 1 31 54131 -0.1123 0.4597 0.01979
2007 2 1 54132 -0.1109 0.4621 0.01944
2007 2 2 54133 -0.1094 0.4645 0.01891
2007 2 3 54134 -0.1079 0.4669 0.01819
2007 2 4 54135 -0.1063 0.4693 0.01730
2007 2 5 54136 -0.1047 0.4717 0.01629
2007 2 6 54137 -0.1031 0.4740 0.01522
2007 2 7 54138 -0.1014 0.4763 0.01418
2007 2 8 54139 -0.0996 0.4786 0.01321
2007 2 9 54140 -0.0978 0.4809 0.01237
2007 2 10 54141 -0.0960 0.4832 0.01169
2007 2 11 54142 -0.0941 0.4854 0.01117
2007 2 12 54143 -0.0922 0.4876 0.01079
2007 2 13 54144 -0.0902 0.4898 0.01050
2007 2 14 54145 -0.0882 0.4919 0.01022
2007 2 15 54146 -0.0862 0.4941 0.00983
2007 2 16 54147 -0.0841 0.4962 0.00920
2007 2 17 54148 -0.0819 0.4982 0.00826
2007 2 18 54149 -0.0798 0.5003 0.00698
2007 2 19 54150 -0.0776 0.5023 0.00542
2007 2 20 54151 -0.0753 0.5042 0.00375
2007 2 21 54152 -0.0730 0.5062 0.00212
2007 2 22 54153 -0.0707 0.5081 0.00071
2007 2 23 54154 -0.0683 0.5100 -0.00040
2007 2 24 54155 -0.0659 0.5118 -0.00121
2007 2 25 54156 -0.0635 0.5136 -0.00180
2007 2 26 54157 -0.0610 0.5154 -0.00229
2007 2 27 54158 -0.0585 0.5172 -0.00279
2007 2 28 54159 -0.0559 0.5189 -0.00341
2007 3 1 54160 -0.0534 0.5205 -0.00423
2007 3 2 54161 -0.0507 0.5222 -0.00525
2007 3 3 54162 -0.0481 0.5238 -0.00648
2007 3 4 54163 -0.0454 0.5253 -0.00785
2007 3 5 54164 -0.0427 0.5269 -0.00929
2007 3 6 54165 -0.0400 0.5283 -0.01070
2007 3 7 54166 -0.0372 0.5298 -0.01199
2007 3 8 54167 -0.0345 0.5312 -0.01309
2007 3 9 54168 -0.0316 0.5326 -0.01395
2007 3 10 54169 -0.0288 0.5339 -0.01458
2007 3 11 54170 -0.0259 0.5353 -0.01501
2007 3 12 54171 -0.0230 0.5366 -0.01530
2007 3 13 54172 -0.0201 0.5378 -0.01553
2007 3 14 54173 -0.0171 0.5390 -0.01582
2007 3 15 54174 -0.0142 0.5402 -0.01629
2007 3 16 54175 -0.0112 0.5413 -0.01708
2007 3 17 54176 -0.0082 0.5424 -0.01824
2007 3 18 54177 -0.0051 0.5434 -0.01977
2007 3 19 54178 -0.0021 0.5444 -0.02155
2007 3 20 54179 0.0010 0.5453 -0.02339
2007 3 21 54180 0.0041 0.5462 -0.02508
2007 3 22 54181 0.0072 0.5471 -0.02647
2007 3 23 54182 0.0103 0.5479 -0.02750
2007 3 24 54183 0.0135 0.5487 -0.02823
2007 3 25 54184 0.0166 0.5494 -0.02877
2007 3 26 54185 0.0198 0.5500 -0.02927
2007 3 27 54186 0.0230 0.5507 -0.02983
2007 3 28 54187 0.0261 0.5513 -0.03055
2007 3 29 54188 0.0294 0.5518 -0.03148
2007 3 30 54189 0.0326 0.5523 -0.03262
2007 3 31 54190 0.0358 0.5527 -0.03393
2007 4 1 54191 0.0390 0.5531 -0.03534
2007 4 2 54192 0.0423 0.5535 -0.03678
2007 4 3 54193 0.0455 0.5538 -0.03816
2007 4 4 54194 0.0488 0.5540 -0.03943
2007 4 5 54195 0.0520 0.5542 -0.04055
2007 4 6 54196 0.0553 0.5544 -0.04149
2007 4 7 54197 0.0586 0.5545 -0.04227
2007 4 8 54198 0.0618 0.5545 -0.04287
2007 4 9 54199 0.0651 0.5545 -0.04337
2007 4 10 54200 0.0684 0.5545 -0.04389
2007 4 11 54201 0.0717 0.5544 -0.04449
2007 4 12 54202 0.0750 0.5543 -0.04535
2007 4 13 54203 0.0783 0.5541 -0.04654
2007 4 14 54204 0.0815 0.5539 -0.04810
2007 4 15 54205 0.0848 0.5536 -0.04993
2007 4 16 54206 0.0881 0.5533 -0.05178
2007 4 17 54207 0.0914 0.5529 -0.05349
2007 4 18 54208 0.0947 0.5525 -0.05486
2007 4 19 54209 0.0979 0.5520 -0.05583
2007 4 20 54210 0.1012 0.5515 -0.05639
2007 4 21 54211 0.1045 0.5509 -0.05663
2007 4 22 54212 0.1077 0.5503 -0.05670
2007 4 23 54213 0.1110 0.5496 -0.05683
2007 4 24 54214 0.1142 0.5489 -0.05698
2007 4 25 54215 0.1175 0.5481 -0.05729
2007 4 26 54216 0.1207 0.5473 -0.05783
2007 4 27 54217 0.1239 0.5465 -0.05853
2007 4 28 54218 0.1271 0.5456 -0.05927
2007 4 29 54219 0.1303 0.5446 -0.06004
2007 4 30 54220 0.1335 0.5436 -0.06077
2007 5 1 54221 0.1367 0.5426 -0.06139
2007 5 2 54222 0.1398 0.5415 -0.06189
2007 5 3 54223 0.1430 0.5403 -0.06219
2007 5 4 54224 0.1461 0.5391 -0.06229
2007 5 5 54225 0.1492 0.5379 -0.06222
2007 5 6 54226 0.1523 0.5366 -0.06202
2007 5 7 54227 0.1554 0.5353 -0.06175
2007 5 8 54228 0.1585 0.5339 -0.06159
2007 5 9 54229 0.1615 0.5325 -0.06164
2007 5 10 54230 0.1646 0.5310 -0.06198
2007 5 11 54231 0.1676 0.5295 -0.06264
2007 5 12 54232 0.1706 0.5279 -0.06355
2007 5 13 54233 0.1735 0.5263 -0.06463
2007 5 14 54234 0.1765 0.5247 -0.06583
2007 5 15 54235 0.1794 0.5230 -0.06686
2007 5 16 54236 0.1824 0.5213 -0.06765
2007 5 17 54237 0.1853 0.5195 -0.06809
2007 5 18 54238 0.1881 0.5177 -0.06824
2007 5 19 54239 0.1910 0.5158 -0.06822
2007 5 20 54240 0.1938 0.5139 -0.06816
2007 5 21 54241 0.1966 0.5119 -0.06818
2007 5 22 54242 0.1994 0.5099 -0.06835
2007 5 23 54243 0.2021 0.5079 -0.06861
2007 5 24 54244 0.2048 0.5058 -0.06902
2007 5 25 54245 0.2075 0.5037 -0.06951
2007 5 26 54246 0.2102 0.5016 -0.07000
2007 5 27 54247 0.2129 0.4994 -0.07043
2007 5 28 54248 0.2155 0.4971 -0.07068
2007 5 29 54249 0.2181 0.4948 -0.07078
2007 5 30 54250 0.2206 0.4925 -0.07065
2007 5 31 54251 0.2231 0.4902 -0.07025
2007 6 1 54252 0.2256 0.4878 -0.06960
2007 6 2 54253 0.2281 0.4853 -0.06882
2007 6 3 54254 0.2305 0.4829 -0.06799
2007 6 4 54255 0.2329 0.4803 -0.06719
2007 6 5 54256 0.2353 0.4778 -0.06657
2007 6 6 54257 0.2376 0.4752 -0.06614
2007 6 7 54258 0.2399 0.4726 -0.06603
2007 6 8 54259 0.2422 0.4699 -0.06626
2007 6 9 54260 0.2444 0.4672 -0.06665
2007 6 10 54261 0.2466 0.4645 -0.06708
2007 6 11 54262 0.2488 0.4618 -0.06739
2007 6 12 54263 0.2509 0.4590 -0.06748
2007 6 13 54264 0.2530 0.4561 -0.06730
2007 6 14 54265 0.2550 0.4533 -0.06686
2007 6 15 54266 0.2570 0.4504 -0.06623
2007 6 16 54267 0.2590 0.4475 -0.06550
2007 6 17 54268 0.2609 0.4445 -0.06484
2007 6 18 54269 0.2628 0.4415 -0.06433
2007 6 19 54270 0.2647 0.4385 -0.06404
2007 6 20 54271 0.2665 0.4355 -0.06393
2007 6 21 54272 0.2682 0.4324 -0.06393
2007 6 22 54273 0.2700 0.4293 -0.06392
2007 6 23 54274 0.2716 0.4262 -0.06379
2007 6 24 54275 0.2733 0.4230 -0.06363
2007 6 25 54276 0.2749 0.4199 -0.06333
2007 6 26 54277 0.2764 0.4167 -0.06284
2007 6 27 54278 0.2779 0.4134 -0.06217
2007 6 28 54279 0.2794 0.4102 -0.06134
2007 6 29 54280 0.2808 0.4069 -0.06038
2007 6 30 54281 0.2821 0.4036 -0.05937
2007 7 1 54282 0.2835 0.4003 -0.05837
2007 7 2 54283 0.2847 0.3969 -0.05749
2007 7 3 54284 0.2859 0.3936 -0.05668
2007 7 4 54285 0.2871 0.3902 -0.05612
2007 7 5 54286 0.2882 0.3868 -0.05578
2007 7 6 54287 0.2893 0.3833 -0.05565
2007 7 7 54288 0.2903 0.3799 -0.05556
2007 7 8 54289 0.2913 0.3764 -0.05549
2007 7 9 54290 0.2922 0.3730 -0.05522
2007 7 10 54291 0.2931 0.3695 -0.05468
2007 7 11 54292 0.2939 0.3659 -0.05388
2007 7 12 54293 0.2947 0.3624 -0.05285
2007 7 13 54294 0.2954 0.3589 -0.05167
2007 7 14 54295 0.2960 0.3553 -0.05045
2007 7 15 54296 0.2966 0.3517 -0.04935
2007 7 16 54297 0.2972 0.3482 -0.04840
2007 7 17 54298 0.2977 0.3446 -0.04770
2007 7 18 54299 0.2981 0.3410 -0.04722
2007 7 19 54300 0.2985 0.3374 -0.04683
2007 7 20 54301 0.2988 0.3337 -0.04648
2007 7 21 54302 0.2991 0.3301 -0.04605
2007 7 22 54303 0.2993 0.3265 -0.04547
2007 7 23 54304 0.2994 0.3228 -0.04471
2007 7 24 54305 0.2995 0.3192 -0.04374
2007 7 25 54306 0.2996 0.3155 -0.04252
2007 7 26 54307 0.2995 0.3119 -0.04113
2007 7 27 54308 0.2994 0.3082 -0.03967
2007 7 28 54309 0.2993 0.3046 -0.03824
2007 7 29 54310 0.2991 0.3009 -0.03688
2007 7 30 54311 0.2988 0.2973 -0.03577
2007 7 31 54312 0.2985 0.2936 -0.03497
2007 8 1 54313 0.2981 0.2899 -0.03453
2007 8 2 54314 0.2977 0.2863 -0.03433
2007 8 3 54315 0.2972 0.2826 -0.03427
2007 8 4 54316 0.2966 0.2790 -0.03419
2007 8 5 54317 0.2960 0.2753 -0.03382
2007 8 6 54318 0.2953 0.2717 -0.03317
2007 8 7 54319 0.2945 0.2680 -0.03226
2007 8 8 54320 0.2937 0.2644 -0.03116
2007 8 9 54321 0.2928 0.2608 -0.02997
2007 8 10 54322 0.2919 0.2572 -0.02881
2007 8 11 54323 0.2909 0.2536 -0.02771
2007 8 12 54324 0.2898 0.2500 -0.02685
2007 8 13 54325 0.2887 0.2464 -0.02618
2007 8 14 54326 0.2875 0.2429 -0.02570
2007 8 15 54327 0.2862 0.2393 -0.02543
2007 8 16 54328 0.2849 0.2358 -0.02522
2007 8 17 54329 0.2835 0.2323 -0.02504
2007 8 18 54330 0.2820 0.2288 -0.02482
2007 8 19 54331 0.2805 0.2253 -0.02452
2007 8 20 54332 0.2789 0.2218 -0.02411
2007 8 21 54333 0.2773 0.2184 -0.02356
2007 8 22 54334 0.2756 0.2150 -0.02290
2007 8 23 54335 0.2738 0.2116 -0.02215
2007 8 24 54336 0.2720 0.2082 -0.02140
2007 8 25 54337 0.2701 0.2048 -0.02070
2007 8 26 54338 0.2681 0.2015 -0.02016
2007 8 27 54339 0.2661 0.1982 -0.01991
2007 8 28 54340 0.2640 0.1949 -0.02000
2007 8 29 54341 0.2619 0.1916 -0.02034
2007 8 30 54342 0.2596 0.1884 -0.02086
2007 8 31 54343 0.2574 0.1852 -0.02146
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)
53959 -65.47 .20 -5.66 .34
53960 -65.94 .20 -5.86 .34
53961 -66.25 .20 -5.95 .34
53962 -66.45 .11 -5.88 .19
53963 -66.58 .12 -5.80 .14
53964 -66.66 .12 -5.83 .14
53965 -66.69 .12 -5.94 .14
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53959 -0.092 0.080 -0.260 0.340
53960 -0.116 0.080 -0.223 0.340
53961 -0.141 0.080 -0.224 0.340
53962 -0.158 0.044 -0.242 0.190
53963 -0.160 0.048 -0.253 0.140
53964 -0.151 0.048 -0.254 0.140
53965 -0.127 0.048 -0.254 0.140
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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