**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
21 September 2006 Vol. XIX No. 038
______________________________________________________________________
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 9 15 53993 .06457 .00003 .25185 .00005 .159499 .000016
6 9 16 53994 .06333 .00003 .25177 .00005 .159198 .000016
6 9 17 53995 .06190 .00002 .25182 .00005 .158867 .000017
6 9 18 53996 .06030 .00002 .25192 .00004 .158406 .000016
6 9 19 53997 .05856 .00002 .25229 .00003 .157751 .000016
6 9 20 53998 .05653 .00002 .25267 .00003 .156908 .000013
6 9 21 53999 .05421 .00002 .25276 .00003 .155911 .000009
_______________________________________________________________________
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 = .0550 + .1555 cos A - .0418 sin A - .1636 cos C - .0812 sin C
y = .3607 - .0305 cos A - .1405 sin A - .0812 cos C + .1636 sin C
UT1-UTC = .0950 - .00067 (MJD - 54004) - (UT2-UT1)
where A = 2*pi*(MJD-53999)/365.25 and C = 2*pi*(MJD-53999)/435.
TAI-UTC(MJD 54000) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53999)**0.80 S t = 0.00025 (MJD-53999)**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 22 54000 0.0519 0.2527 0.15480
2006 9 23 54001 0.0496 0.2526 0.15367
2006 9 24 54002 0.0474 0.2524 0.15260
2006 9 25 54003 0.0453 0.2523 0.15158
2006 9 26 54004 0.0432 0.2523 0.15068
2006 9 27 54005 0.0411 0.2522 0.14994
2006 9 28 54006 0.0390 0.2522 0.14938
2006 9 29 54007 0.0370 0.2522 0.14892
2006 9 30 54008 0.0350 0.2522 0.14848
2006 10 1 54009 0.0329 0.2522 0.14799
2006 10 2 54010 0.0309 0.2523 0.14731
2006 10 3 54011 0.0289 0.2524 0.14631
2006 10 4 54012 0.0269 0.2525 0.14495
2006 10 5 54013 0.0249 0.2526 0.14325
2006 10 6 54014 0.0229 0.2528 0.14131
2006 10 7 54015 0.0209 0.2530 0.13932
2006 10 8 54016 0.0189 0.2532 0.13747
2006 10 9 54017 0.0168 0.2534 0.13592
2006 10 10 54018 0.0148 0.2537 0.13471
2006 10 11 54019 0.0127 0.2540 0.13380
2006 10 12 54020 0.0107 0.2544 0.13309
2006 10 13 54021 0.0086 0.2547 0.13243
2006 10 14 54022 0.0065 0.2551 0.13172
2006 10 15 54023 0.0044 0.2555 0.13087
2006 10 16 54024 0.0024 0.2560 0.12984
2006 10 17 54025 0.0002 0.2564 0.12863
2006 10 18 54026 -0.0019 0.2569 0.12726
2006 10 19 54027 -0.0040 0.2575 0.12577
2006 10 20 54028 -0.0061 0.2580 0.12422
2006 10 21 54029 -0.0082 0.2586 0.12268
2006 10 22 54030 -0.0104 0.2592 0.12121
2006 10 23 54031 -0.0125 0.2599 0.11987
2006 10 24 54032 -0.0147 0.2605 0.11869
2006 10 25 54033 -0.0168 0.2613 0.11767
2006 10 26 54034 -0.0190 0.2620 0.11680
2006 10 27 54035 -0.0211 0.2628 0.11601
2006 10 28 54036 -0.0233 0.2636 0.11521
2006 10 29 54037 -0.0254 0.2644 0.11429
2006 10 30 54038 -0.0276 0.2652 0.11314
2006 10 31 54039 -0.0297 0.2661 0.11168
2006 11 1 54040 -0.0319 0.2670 0.10989
2006 11 2 54041 -0.0340 0.2680 0.10783
2006 11 3 54042 -0.0362 0.2690 0.10564
2006 11 4 54043 -0.0383 0.2700 0.10349
2006 11 5 54044 -0.0404 0.2710 0.10155
2006 11 6 54045 -0.0425 0.2721 0.09990
2006 11 7 54046 -0.0447 0.2732 0.09857
2006 11 8 54047 -0.0468 0.2743 0.09748
2006 11 9 54048 -0.0488 0.2755 0.09651
2006 11 10 54049 -0.0509 0.2767 0.09552
2006 11 11 54050 -0.0530 0.2779 0.09444
2006 11 12 54051 -0.0550 0.2792 0.09321
2006 11 13 54052 -0.0571 0.2805 0.09181
2006 11 14 54053 -0.0591 0.2818 0.09028
2006 11 15 54054 -0.0611 0.2832 0.08864
2006 11 16 54055 -0.0631 0.2845 0.08697
2006 11 17 54056 -0.0650 0.2859 0.08531
2006 11 18 54057 -0.0670 0.2874 0.08375
2006 11 19 54058 -0.0689 0.2889 0.08233
2006 11 20 54059 -0.0708 0.2904 0.08110
2006 11 21 54060 -0.0727 0.2919 0.08006
2006 11 22 54061 -0.0745 0.2935 0.07920
2006 11 23 54062 -0.0764 0.2950 0.07845
2006 11 24 54063 -0.0782 0.2967 0.07773
2006 11 25 54064 -0.0800 0.2983 0.07694
2006 11 26 54065 -0.0817 0.3000 0.07597
2006 11 27 54066 -0.0834 0.3017 0.07475
2006 11 28 54067 -0.0851 0.3034 0.07325
2006 11 29 54068 -0.0868 0.3052 0.07150
2006 11 30 54069 -0.0884 0.3070 0.06962
2006 12 1 54070 -0.0900 0.3088 0.06774
2006 12 2 54071 -0.0916 0.3106 0.06600
2006 12 3 54072 -0.0931 0.3125 0.06453
2006 12 4 54073 -0.0946 0.3144 0.06336
2006 12 5 54074 -0.0961 0.3163 0.06247
2006 12 6 54075 -0.0976 0.3183 0.06175
2006 12 7 54076 -0.0990 0.3203 0.06109
2006 12 8 54077 -0.1003 0.3223 0.06036
2006 12 9 54078 -0.1017 0.3243 0.05949
2006 12 10 54079 -0.1029 0.3263 0.05846
2006 12 11 54080 -0.1042 0.3284 0.05728
2006 12 12 54081 -0.1054 0.3305 0.05598
2006 12 13 54082 -0.1066 0.3326 0.05463
2006 12 14 54083 -0.1077 0.3347 0.05328
2006 12 15 54084 -0.1088 0.3369 0.05200
2006 12 16 54085 -0.1098 0.3391 0.05085
2006 12 17 54086 -0.1108 0.3413 0.04987
2006 12 18 54087 -0.1118 0.3435 0.04908
2006 12 19 54088 -0.1127 0.3457 0.04847
2006 12 20 54089 -0.1136 0.3480 0.04801
2006 12 21 54090 -0.1144 0.3503 0.04760
2006 12 22 54091 -0.1152 0.3525 0.04715
2006 12 23 54092 -0.1159 0.3549 0.04654
2006 12 24 54093 -0.1166 0.3572 0.04568
2006 12 25 54094 -0.1173 0.3595 0.04456
2006 12 26 54095 -0.1179 0.3619 0.04320
2006 12 27 54096 -0.1184 0.3642 0.04169
2006 12 28 54097 -0.1189 0.3666 0.04018
2006 12 29 54098 -0.1193 0.3690 0.03880
2006 12 30 54099 -0.1197 0.3714 0.03767
2006 12 31 54100 -0.1201 0.3738 0.03684
2007 1 1 54101 -0.1204 0.3763 0.03628
2007 1 2 54102 -0.1206 0.3787 0.03593
2007 1 3 54103 -0.1208 0.3812 0.03567
2007 1 4 54104 -0.1210 0.3836 0.03537
2007 1 5 54105 -0.1211 0.3861 0.03486
2007 1 6 54106 -0.1211 0.3886 0.03417
2007 1 7 54107 -0.1211 0.3910 0.03331
2007 1 8 54108 -0.1211 0.3935 0.03230
2007 1 9 54109 -0.1210 0.3960 0.03120
2007 1 10 54110 -0.1208 0.3985 0.03008
2007 1 11 54111 -0.1206 0.4010 0.02899
2007 1 12 54112 -0.1203 0.4035 0.02801
2007 1 13 54113 -0.1200 0.4060 0.02716
2007 1 14 54114 -0.1197 0.4085 0.02648
2007 1 15 54115 -0.1193 0.4110 0.02597
2007 1 16 54116 -0.1188 0.4135 0.02560
2007 1 17 54117 -0.1183 0.4160 0.02529
2007 1 18 54118 -0.1177 0.4185 0.02496
2007 1 19 54119 -0.1171 0.4210 0.02448
2007 1 20 54120 -0.1164 0.4235 0.02375
2007 1 21 54121 -0.1157 0.4260 0.02271
2007 1 22 54122 -0.1149 0.4285 0.02138
2007 1 23 54123 -0.1141 0.4310 0.01987
2007 1 24 54124 -0.1132 0.4334 0.01832
2007 1 25 54125 -0.1123 0.4359 0.01687
2007 1 26 54126 -0.1113 0.4384 0.01567
2007 1 27 54127 -0.1103 0.4408 0.01475
2007 1 28 54128 -0.1092 0.4432 0.01411
2007 1 29 54129 -0.1081 0.4456 0.01366
2007 1 30 54130 -0.1069 0.4481 0.01332
2007 1 31 54131 -0.1057 0.4504 0.01295
2007 2 1 54132 -0.1044 0.4528 0.01246
2007 2 2 54133 -0.1031 0.4552 0.01180
2007 2 3 54134 -0.1017 0.4576 0.01094
2007 2 4 54135 -0.1003 0.4599 0.00991
2007 2 5 54136 -0.0988 0.4622 0.00876
2007 2 6 54137 -0.0973 0.4645 0.00756
2007 2 7 54138 -0.0958 0.4668 0.00637
2007 2 8 54139 -0.0942 0.4691 0.00526
2007 2 9 54140 -0.0925 0.4713 0.00427
2007 2 10 54141 -0.0908 0.4735 0.00345
2007 2 11 54142 -0.0891 0.4757 0.00278
2007 2 12 54143 -0.0873 0.4779 0.00226
2007 2 13 54144 -0.0855 0.4801 0.00182
2007 2 14 54145 -0.0836 0.4822 0.00139
2007 2 15 54146 -0.0817 0.4843 0.00085
2007 2 16 54147 -0.0798 0.4864 0.00007
2007 2 17 54148 -0.0778 0.4884 -0.00102
2007 2 18 54149 -0.0757 0.4905 -0.00245
2007 2 19 54150 -0.0737 0.4925 -0.00415
2007 2 20 54151 -0.0716 0.4944 -0.00597
2007 2 21 54152 -0.0694 0.4964 -0.00772
2007 2 22 54153 -0.0672 0.4983 -0.00925
2007 2 23 54154 -0.0650 0.5002 -0.01048
2007 2 24 54155 -0.0628 0.5020 -0.01139
2007 2 25 54156 -0.0605 0.5038 -0.01206
2007 2 26 54157 -0.0581 0.5056 -0.01260
2007 2 27 54158 -0.0558 0.5074 -0.01314
2007 2 28 54159 -0.0534 0.5091 -0.01377
2007 3 1 54160 -0.0510 0.5108 -0.01456
2007 3 2 54161 -0.0485 0.5124 -0.01554
2007 3 3 54162 -0.0460 0.5140 -0.01670
2007 3 4 54163 -0.0435 0.5156 -0.01800
2007 3 5 54164 -0.0409 0.5172 -0.01938
2007 3 6 54165 -0.0383 0.5187 -0.02077
2007 3 7 54166 -0.0357 0.5201 -0.02210
2007 3 8 54167 -0.0331 0.5216 -0.02331
2007 3 9 54168 -0.0304 0.5230 -0.02437
2007 3 10 54169 -0.0277 0.5243 -0.02527
2007 3 11 54170 -0.0250 0.5256 -0.02601
2007 3 12 54171 -0.0223 0.5269 -0.02666
2007 3 13 54172 -0.0195 0.5281 -0.02726
2007 3 14 54173 -0.0167 0.5293 -0.02794
2007 3 15 54174 -0.0139 0.5305 -0.02880
2007 3 16 54175 -0.0111 0.5316 -0.02995
2007 3 17 54176 -0.0082 0.5326 -0.03146
2007 3 18 54177 -0.0053 0.5336 -0.03332
2007 3 19 54178 -0.0024 0.5346 -0.03542
2007 3 20 54179 0.0005 0.5356 -0.03758
2007 3 21 54180 0.0034 0.5364 -0.03961
2007 3 22 54181 0.0064 0.5373 -0.04137
2007 3 23 54182 0.0093 0.5381 -0.04282
2007 3 24 54183 0.0123 0.5388 -0.04400
2007 3 25 54184 0.0153 0.5396 -0.04501
2007 3 26 54185 0.0183 0.5402 -0.04598
2007 3 27 54186 0.0213 0.5408 -0.04699
2007 3 28 54187 0.0244 0.5414 -0.04811
2007 3 29 54188 0.0274 0.5419 -0.04933
2007 3 30 54189 0.0305 0.5424 -0.05064
2007 3 31 54190 0.0335 0.5429 -0.05200
2007 4 1 54191 0.0366 0.5433 -0.05337
2007 4 2 54192 0.0397 0.5437 -0.05469
2007 4 3 54193 0.0428 0.5440 -0.05590
2007 4 4 54194 0.0460 0.5443 -0.05697
2007 4 5 54195 0.0491 0.5446 -0.05787
2007 4 6 54196 0.0522 0.5447 -0.05858
2007 4 7 54197 0.0553 0.5449 -0.05910
2007 4 8 54198 0.0585 0.5450 -0.05947
2007 4 9 54199 0.0616 0.5450 -0.05974
2007 4 10 54200 0.0647 0.5450 -0.05998
2007 4 11 54201 0.0679 0.5450 -0.06030
2007 4 12 54202 0.0710 0.5449 -0.06080
2007 4 13 54203 0.0742 0.5447 -0.06159
2007 4 14 54204 0.0773 0.5445 -0.06271
2007 4 15 54205 0.0805 0.5443 -0.06412
2007 4 16 54206 0.0836 0.5440 -0.06571
2007 4 17 54207 0.0867 0.5437 -0.06731
2007 4 18 54208 0.0899 0.5433 -0.06874
2007 4 19 54209 0.0930 0.5428 -0.06992
2007 4 20 54210 0.0961 0.5424 -0.07081
2007 4 21 54211 0.0993 0.5418 -0.07148
2007 4 22 54212 0.1024 0.5412 -0.07205
2007 4 23 54213 0.1055 0.5406 -0.07263
2007 4 24 54214 0.1086 0.5399 -0.07330
2007 4 25 54215 0.1117 0.5392 -0.07408
2007 4 26 54216 0.1148 0.5385 -0.07498
2007 4 27 54217 0.1178 0.5376 -0.07596
2007 4 28 54218 0.1209 0.5368 -0.07699
2007 4 29 54219 0.1240 0.5359 -0.07804
2007 4 30 54220 0.1270 0.5349 -0.07903
2007 5 1 54221 0.1301 0.5339 -0.07994
2007 5 2 54222 0.1331 0.5329 -0.08076
2007 5 3 54223 0.1361 0.5318 -0.08141
2007 5 4 54224 0.1391 0.5306 -0.08182
2007 5 5 54225 0.1421 0.5294 -0.08206
2007 5 6 54226 0.1450 0.5282 -0.08216
2007 5 7 54227 0.1480 0.5269 -0.08220
2007 5 8 54228 0.1509 0.5256 -0.08236
2007 5 9 54229 0.1539 0.5243 -0.08276
2007 5 10 54230 0.1568 0.5229 -0.08348
2007 5 11 54231 0.1597 0.5214 -0.08448
2007 5 12 54232 0.1625 0.5199 -0.08575
2007 5 13 54233 0.1654 0.5184 -0.08720
2007 5 14 54234 0.1682 0.5168 -0.08865
2007 5 15 54235 0.1710 0.5152 -0.08993
2007 5 16 54236 0.1738 0.5135 -0.09093
2007 5 17 54237 0.1766 0.5118 -0.09159
2007 5 18 54238 0.1793 0.5100 -0.09195
2007 5 19 54239 0.1821 0.5083 -0.09214
2007 5 20 54240 0.1848 0.5064 -0.09223
2007 5 21 54241 0.1875 0.5046 -0.09236
2007 5 22 54242 0.1901 0.5026 -0.09267
2007 5 23 54243 0.1928 0.5007 -0.09311
2007 5 24 54244 0.1954 0.4987 -0.09371
2007 5 25 54245 0.1980 0.4967 -0.09443
2007 5 26 54246 0.2005 0.4946 -0.09522
2007 5 27 54247 0.2031 0.4925 -0.09597
2007 5 28 54248 0.2056 0.4904 -0.09652
2007 5 29 54249 0.2081 0.4882 -0.09682
2007 5 30 54250 0.2105 0.4860 -0.09683
2007 5 31 54251 0.2129 0.4837 -0.09660
2007 6 1 54252 0.2153 0.4815 -0.09613
2007 6 2 54253 0.2177 0.4791 -0.09549
2007 6 3 54254 0.2200 0.4768 -0.09475
2007 6 4 54255 0.2224 0.4744 -0.09409
2007 6 5 54256 0.2246 0.4720 -0.09349
2007 6 6 54257 0.2269 0.4695 -0.09310
2007 6 7 54258 0.2291 0.4670 -0.09301
2007 6 8 54259 0.2313 0.4645 -0.09321
2007 6 9 54260 0.2334 0.4620 -0.09353
2007 6 10 54261 0.2356 0.4594 -0.09390
2007 6 11 54262 0.2376 0.4568 -0.09418
2007 6 12 54263 0.2397 0.4541 -0.09425
2007 6 13 54264 0.2417 0.4515 -0.09404
2007 6 14 54265 0.2437 0.4488 -0.09351
2007 6 15 54266 0.2456 0.4460 -0.09275
2007 6 16 54267 0.2475 0.4433 -0.09189
2007 6 17 54268 0.2494 0.4405 -0.09103
2007 6 18 54269 0.2512 0.4377 -0.09028
2007 6 19 54270 0.2530 0.4349 -0.08975
2007 6 20 54271 0.2548 0.4320 -0.08942
2007 6 21 54272 0.2565 0.4291 -0.08926
2007 6 22 54273 0.2582 0.4262 -0.08917
2007 6 23 54274 0.2598 0.4233 -0.08905
2007 6 24 54275 0.2614 0.4203 -0.08884
2007 6 25 54276 0.2630 0.4173 -0.08859
2007 6 26 54277 0.2645 0.4143 -0.08815
2007 6 27 54278 0.2660 0.4113 -0.08757
2007 6 28 54279 0.2674 0.4083 -0.08683
2007 6 29 54280 0.2688 0.4052 -0.08596
2007 6 30 54281 0.2702 0.4021 -0.08505
2007 7 1 54282 0.2715 0.3990 -0.08418
2007 7 2 54283 0.2728 0.3959 -0.08345
2007 7 3 54284 0.2740 0.3927 -0.08292
2007 7 4 54285 0.2752 0.3896 -0.08259
2007 7 5 54286 0.2763 0.3864 -0.08252
2007 7 6 54287 0.2774 0.3832 -0.08261
2007 7 7 54288 0.2784 0.3800 -0.08276
2007 7 8 54289 0.2794 0.3768 -0.08283
2007 7 9 54290 0.2803 0.3736 -0.08263
2007 7 10 54291 0.2812 0.3703 -0.08216
2007 7 11 54292 0.2821 0.3671 -0.08136
2007 7 12 54293 0.2829 0.3638 -0.08027
2007 7 13 54294 0.2836 0.3605 -0.07898
2007 7 14 54295 0.2843 0.3572 -0.07771
2007 7 15 54296 0.2850 0.3539 -0.07656
2007 7 16 54297 0.2856 0.3506 -0.07558
2007 7 17 54298 0.2861 0.3473 -0.07484
2007 7 18 54299 0.2866 0.3439 -0.07422
2007 7 19 54300 0.2871 0.3406 -0.07377
2007 7 20 54301 0.2875 0.3373 -0.07343
2007 7 21 54302 0.2878 0.3339 -0.07301
2007 7 22 54303 0.2881 0.3306 -0.07246
2007 7 23 54304 0.2884 0.3272 -0.07173
2007 7 24 54305 0.2885 0.3238 -0.07084
2007 7 25 54306 0.2887 0.3205 -0.06982
2007 7 26 54307 0.2887 0.3171 -0.06871
2007 7 27 54308 0.2888 0.3137 -0.06757
2007 7 28 54309 0.2887 0.3104 -0.06644
2007 7 29 54310 0.2886 0.3070 -0.06545
2007 7 30 54311 0.2885 0.3036 -0.06470
2007 7 31 54312 0.2883 0.3002 -0.06426
2007 8 1 54313 0.2880 0.2969 -0.06415
2007 8 2 54314 0.2877 0.2935 -0.06425
2007 8 3 54315 0.2874 0.2901 -0.06442
2007 8 4 54316 0.2869 0.2868 -0.06446
2007 8 5 54317 0.2864 0.2834 -0.06438
2007 8 6 54318 0.2859 0.2801 -0.06405
2007 8 7 54319 0.2853 0.2767 -0.06342
2007 8 8 54320 0.2846 0.2734 -0.06258
2007 8 9 54321 0.2839 0.2701 -0.06164
2007 8 10 54322 0.2831 0.2667 -0.06069
2007 8 11 54323 0.2823 0.2634 -0.05986
2007 8 12 54324 0.2814 0.2601 -0.05920
2007 8 13 54325 0.2805 0.2568 -0.05874
2007 8 14 54326 0.2794 0.2536 -0.05832
2007 8 15 54327 0.2784 0.2503 -0.05803
2007 8 16 54328 0.2772 0.2470 -0.05777
2007 8 17 54329 0.2760 0.2438 -0.05751
2007 8 18 54330 0.2748 0.2406 -0.05712
2007 8 19 54331 0.2735 0.2374 -0.05669
2007 8 20 54332 0.2721 0.2342 -0.05610
2007 8 21 54333 0.2707 0.2310 -0.05534
2007 8 22 54334 0.2692 0.2278 -0.05447
2007 8 23 54335 0.2676 0.2247 -0.05352
2007 8 24 54336 0.2660 0.2216 -0.05255
2007 8 25 54337 0.2643 0.2185 -0.05159
2007 8 26 54338 0.2626 0.2154 -0.05084
2007 8 27 54339 0.2608 0.2123 -0.05032
2007 8 28 54340 0.2590 0.2093 -0.05018
2007 8 29 54341 0.2571 0.2063 -0.05041
2007 8 30 54342 0.2551 0.2033 -0.05083
2007 8 31 54343 0.2531 0.2003 -0.05131
2007 9 1 54344 0.2510 0.1974 -0.05164
2007 9 2 54345 0.2488 0.1945 -0.05168
2007 9 3 54346 0.2466 0.1916 -0.05140
2007 9 4 54347 0.2443 0.1887 -0.05083
2007 9 5 54348 0.2420 0.1859 -0.05003
2007 9 6 54349 0.2396 0.1831 -0.04916
2007 9 7 54350 0.2372 0.1803 -0.04838
2007 9 8 54351 0.2347 0.1776 -0.04778
2007 9 9 54352 0.2321 0.1749 -0.04735
2007 9 10 54353 0.2295 0.1722 -0.04715
2007 9 11 54354 0.2269 0.1696 -0.04715
2007 9 12 54355 0.2241 0.1670 -0.04728
2007 9 13 54356 0.2213 0.1644 -0.04745
2007 9 14 54357 0.2185 0.1619 -0.04757
2007 9 15 54358 0.2156 0.1594 -0.04758
2007 9 16 54359 0.2127 0.1570 -0.04733
2007 9 17 54360 0.2097 0.1545 -0.04688
2007 9 18 54361 0.2066 0.1522 -0.04633
2007 9 19 54362 0.2035 0.1498 -0.04571
2007 9 20 54363 0.2004 0.1475 -0.04511
2007 9 21 54364 0.1971 0.1453 -0.04459
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)
53980 -67.07 .36 -6.28 .34
53981 -66.75 .36 -6.05 .34
53982 -66.39 .36 -5.80 .34
53983 -66.16 .13 -5.67 .42
53984 -66.12 .49 -5.55 .42
53985 -66.31 .49 -5.37 .42
53986 -66.69 .49 -5.27 .42
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53980 -0.109 0.143 -0.136 0.340
53981 -0.099 0.143 -0.126 0.340
53982 -0.093 0.143 -0.130 0.340
53983 -0.096 0.052 -0.153 0.420
53984 -0.111 0.195 -0.175 0.420
53985 -0.122 0.195 -0.189 0.420
53986 -0.118 0.195 -0.161 0.420
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
**************************************************************************
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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