**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
28 September 2006 Vol. XIX No. 039
______________________________________________________________________
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 22 54000 .05180 .00004 .25293 .00003 .154773 .000021
6 9 23 54001 .04930 .00004 .25278 .00003 .153596 .000015
6 9 24 54002 .04712 .00004 .25254 .00003 .152473 .000015
6 9 25 54003 .04509 .00003 .25231 .00003 .151392 .000015
6 9 26 54004 .04326 .00003 .25198 .00002 .150423 .000013
6 9 27 54005 .04165 .00003 .25176 .00002 .149608 .000012
6 9 28 54006 .03994 .00003 .25168 .00001 .148933 .000012
_______________________________________________________________________
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 = .0528 + .1468 cos A - .0576 sin A - .1672 cos C - .0649 sin C
y = .3576 - .0448 cos A - .1327 sin A - .0649 cos C + .1672 sin C
UT1-UTC = .0880 - .00068 (MJD - 54011) - (UT2-UT1)
where A = 2*pi*(MJD-54006)/365.25 and C = 2*pi*(MJD-54006)/435.
TAI-UTC(MJD 54007) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54006)**0.80 S t = 0.00025 (MJD-54006)**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 29 54007 0.0381 0.2516 0.14836
2006 9 30 54008 0.0363 0.2516 0.14777
2006 10 1 54009 0.0344 0.2516 0.14708
2006 10 2 54010 0.0324 0.2517 0.14616
2006 10 3 54011 0.0305 0.2518 0.14494
2006 10 4 54012 0.0285 0.2520 0.14338
2006 10 5 54013 0.0265 0.2522 0.14154
2006 10 6 54014 0.0245 0.2524 0.13953
2006 10 7 54015 0.0225 0.2526 0.13750
2006 10 8 54016 0.0204 0.2529 0.13563
2006 10 9 54017 0.0184 0.2532 0.13408
2006 10 10 54018 0.0163 0.2535 0.13288
2006 10 11 54019 0.0143 0.2538 0.13198
2006 10 12 54020 0.0122 0.2542 0.13128
2006 10 13 54021 0.0101 0.2546 0.13063
2006 10 14 54022 0.0080 0.2550 0.12991
2006 10 15 54023 0.0059 0.2554 0.12906
2006 10 16 54024 0.0038 0.2559 0.12803
2006 10 17 54025 0.0017 0.2564 0.12684
2006 10 18 54026 -0.0004 0.2569 0.12549
2006 10 19 54027 -0.0026 0.2574 0.12403
2006 10 20 54028 -0.0047 0.2580 0.12251
2006 10 21 54029 -0.0068 0.2586 0.12101
2006 10 22 54030 -0.0090 0.2592 0.11958
2006 10 23 54031 -0.0111 0.2599 0.11829
2006 10 24 54032 -0.0133 0.2606 0.11716
2006 10 25 54033 -0.0154 0.2613 0.11619
2006 10 26 54034 -0.0175 0.2620 0.11537
2006 10 27 54035 -0.0197 0.2628 0.11462
2006 10 28 54036 -0.0218 0.2635 0.11386
2006 10 29 54037 -0.0240 0.2644 0.11298
2006 10 30 54038 -0.0261 0.2652 0.11188
2006 10 31 54039 -0.0283 0.2661 0.11049
2006 11 1 54040 -0.0304 0.2670 0.10877
2006 11 2 54041 -0.0325 0.2679 0.10679
2006 11 3 54042 -0.0346 0.2689 0.10467
2006 11 4 54043 -0.0367 0.2699 0.10260
2006 11 5 54044 -0.0388 0.2709 0.10074
2006 11 6 54045 -0.0409 0.2719 0.09920
2006 11 7 54046 -0.0430 0.2730 0.09799
2006 11 8 54047 -0.0451 0.2741 0.09703
2006 11 9 54048 -0.0472 0.2753 0.09619
2006 11 10 54049 -0.0492 0.2764 0.09533
2006 11 11 54050 -0.0513 0.2776 0.09437
2006 11 12 54051 -0.0533 0.2788 0.09324
2006 11 13 54052 -0.0553 0.2801 0.09194
2006 11 14 54053 -0.0573 0.2814 0.09049
2006 11 15 54054 -0.0593 0.2827 0.08891
2006 11 16 54055 -0.0612 0.2840 0.08727
2006 11 17 54056 -0.0632 0.2854 0.08561
2006 11 18 54057 -0.0651 0.2868 0.08400
2006 11 19 54058 -0.0670 0.2882 0.08251
2006 11 20 54059 -0.0689 0.2897 0.08118
2006 11 21 54060 -0.0707 0.2912 0.08003
2006 11 22 54061 -0.0726 0.2927 0.07904
2006 11 23 54062 -0.0744 0.2943 0.07816
2006 11 24 54063 -0.0762 0.2958 0.07732
2006 11 25 54064 -0.0779 0.2974 0.07641
2006 11 26 54065 -0.0797 0.2991 0.07533
2006 11 27 54066 -0.0814 0.3007 0.07402
2006 11 28 54067 -0.0831 0.3024 0.07244
2006 11 29 54068 -0.0847 0.3041 0.07064
2006 11 30 54069 -0.0863 0.3059 0.06871
2006 12 1 54070 -0.0879 0.3076 0.06680
2006 12 2 54071 -0.0895 0.3094 0.06505
2006 12 3 54072 -0.0910 0.3112 0.06357
2006 12 4 54073 -0.0925 0.3131 0.06241
2006 12 5 54074 -0.0940 0.3149 0.06152
2006 12 6 54075 -0.0954 0.3168 0.06082
2006 12 7 54076 -0.0968 0.3187 0.06017
2006 12 8 54077 -0.0982 0.3207 0.05945
2006 12 9 54078 -0.0995 0.3227 0.05859
2006 12 10 54079 -0.1008 0.3246 0.05757
2006 12 11 54080 -0.1020 0.3267 0.05639
2006 12 12 54081 -0.1032 0.3287 0.05508
2006 12 13 54082 -0.1044 0.3308 0.05371
2006 12 14 54083 -0.1055 0.3328 0.05232
2006 12 15 54084 -0.1066 0.3349 0.05099
2006 12 16 54085 -0.1077 0.3371 0.04978
2006 12 17 54086 -0.1087 0.3392 0.04872
2006 12 18 54087 -0.1096 0.3414 0.04784
2006 12 19 54088 -0.1105 0.3435 0.04714
2006 12 20 54089 -0.1114 0.3457 0.04657
2006 12 21 54090 -0.1122 0.3480 0.04605
2006 12 22 54091 -0.1130 0.3502 0.04548
2006 12 23 54092 -0.1138 0.3525 0.04475
2006 12 24 54093 -0.1145 0.3547 0.04379
2006 12 25 54094 -0.1151 0.3570 0.04255
2006 12 26 54095 -0.1157 0.3593 0.04109
2006 12 27 54096 -0.1163 0.3616 0.03949
2006 12 28 54097 -0.1168 0.3640 0.03789
2006 12 29 54098 -0.1173 0.3663 0.03643
2006 12 30 54099 -0.1177 0.3687 0.03521
2006 12 31 54100 -0.1180 0.3710 0.03429
2007 1 1 54101 -0.1183 0.3734 0.03365
2007 1 2 54102 -0.1186 0.3758 0.03321
2007 1 3 54103 -0.1188 0.3782 0.03285
2007 1 4 54104 -0.1190 0.3806 0.03245
2007 1 5 54105 -0.1191 0.3830 0.03193
2007 1 6 54106 -0.1192 0.3855 0.03124
2007 1 7 54107 -0.1192 0.3879 0.03038
2007 1 8 54108 -0.1192 0.3903 0.02938
2007 1 9 54109 -0.1191 0.3928 0.02830
2007 1 10 54110 -0.1190 0.3952 0.02720
2007 1 11 54111 -0.1188 0.3977 0.02615
2007 1 12 54112 -0.1185 0.4001 0.02512
2007 1 13 54113 -0.1183 0.4026 0.02424
2007 1 14 54114 -0.1179 0.4051 0.02353
2007 1 15 54115 -0.1175 0.4075 0.02299
2007 1 16 54116 -0.1171 0.4100 0.02259
2007 1 17 54117 -0.1166 0.4125 0.02226
2007 1 18 54118 -0.1161 0.4149 0.02190
2007 1 19 54119 -0.1155 0.4174 0.02140
2007 1 20 54120 -0.1148 0.4199 0.02064
2007 1 21 54121 -0.1141 0.4223 0.01958
2007 1 22 54122 -0.1134 0.4248 0.01823
2007 1 23 54123 -0.1126 0.4272 0.01670
2007 1 24 54124 -0.1117 0.4297 0.01511
2007 1 25 54125 -0.1109 0.4321 0.01365
2007 1 26 54126 -0.1099 0.4345 0.01241
2007 1 27 54127 -0.1089 0.4370 0.01146
2007 1 28 54128 -0.1079 0.4394 0.01079
2007 1 29 54129 -0.1068 0.4418 0.01032
2007 1 30 54130 -0.1056 0.4442 0.00994
2007 1 31 54131 -0.1044 0.4465 0.00954
2007 2 1 54132 -0.1032 0.4489 0.00903
2007 2 2 54133 -0.1019 0.4512 0.00834
2007 2 3 54134 -0.1006 0.4536 0.00746
2007 2 4 54135 -0.0992 0.4559 0.00641
2007 2 5 54136 -0.0978 0.4582 0.00524
2007 2 6 54137 -0.0963 0.4605 0.00401
2007 2 7 54138 -0.0948 0.4628 0.00280
2007 2 8 54139 -0.0932 0.4650 0.00167
2007 2 9 54140 -0.0916 0.4673 0.00066
2007 2 10 54141 -0.0899 0.4695 -0.00019
2007 2 11 54142 -0.0882 0.4717 -0.00087
2007 2 12 54143 -0.0865 0.4739 -0.00141
2007 2 13 54144 -0.0847 0.4760 -0.00187
2007 2 14 54145 -0.0829 0.4782 -0.00233
2007 2 15 54146 -0.0810 0.4803 -0.00289
2007 2 16 54147 -0.0791 0.4823 -0.00369
2007 2 17 54148 -0.0771 0.4844 -0.00480
2007 2 18 54149 -0.0751 0.4864 -0.00626
2007 2 19 54150 -0.0731 0.4884 -0.00798
2007 2 20 54151 -0.0710 0.4904 -0.00983
2007 2 21 54152 -0.0689 0.4924 -0.01161
2007 2 22 54153 -0.0668 0.4943 -0.01317
2007 2 23 54154 -0.0646 0.4962 -0.01443
2007 2 24 54155 -0.0624 0.4981 -0.01537
2007 2 25 54156 -0.0601 0.4999 -0.01608
2007 2 26 54157 -0.0578 0.5017 -0.01666
2007 2 27 54158 -0.0555 0.5035 -0.01724
2007 2 28 54159 -0.0531 0.5052 -0.01791
2007 3 1 54160 -0.0507 0.5069 -0.01874
2007 3 2 54161 -0.0483 0.5086 -0.01977
2007 3 3 54162 -0.0458 0.5102 -0.02098
2007 3 4 54163 -0.0433 0.5118 -0.02233
2007 3 5 54164 -0.0408 0.5134 -0.02376
2007 3 6 54165 -0.0383 0.5149 -0.02519
2007 3 7 54166 -0.0357 0.5164 -0.02656
2007 3 8 54167 -0.0331 0.5178 -0.02782
2007 3 9 54168 -0.0304 0.5192 -0.02892
2007 3 10 54169 -0.0278 0.5206 -0.02985
2007 3 11 54170 -0.0251 0.5220 -0.03062
2007 3 12 54171 -0.0224 0.5233 -0.03129
2007 3 13 54172 -0.0196 0.5245 -0.03192
2007 3 14 54173 -0.0169 0.5257 -0.03260
2007 3 15 54174 -0.0141 0.5269 -0.03347
2007 3 16 54175 -0.0113 0.5280 -0.03461
2007 3 17 54176 -0.0085 0.5291 -0.03611
2007 3 18 54177 -0.0056 0.5302 -0.03793
2007 3 19 54178 -0.0028 0.5312 -0.03997
2007 3 20 54179 0.0001 0.5322 -0.04206
2007 3 21 54180 0.0030 0.5331 -0.04399
2007 3 22 54181 0.0060 0.5339 -0.04564
2007 3 23 54182 0.0089 0.5348 -0.04696
2007 3 24 54183 0.0118 0.5356 -0.04800
2007 3 25 54184 0.0148 0.5363 -0.04887
2007 3 26 54185 0.0178 0.5370 -0.04971
2007 3 27 54186 0.0208 0.5377 -0.05065
2007 3 28 54187 0.0238 0.5383 -0.05176
2007 3 29 54188 0.0268 0.5388 -0.05308
2007 3 30 54189 0.0298 0.5393 -0.05460
2007 3 31 54190 0.0329 0.5398 -0.05630
2007 4 1 54191 0.0359 0.5402 -0.05812
2007 4 2 54192 0.0390 0.5406 -0.05997
2007 4 3 54193 0.0420 0.5409 -0.06176
2007 4 4 54194 0.0451 0.5412 -0.06342
2007 4 5 54195 0.0482 0.5414 -0.06486
2007 4 6 54196 0.0513 0.5416 -0.06606
2007 4 7 54197 0.0544 0.5418 -0.06701
2007 4 8 54198 0.0575 0.5419 -0.06774
2007 4 9 54199 0.0606 0.5420 -0.06831
2007 4 10 54200 0.0636 0.5420 -0.06883
2007 4 11 54201 0.0667 0.5420 -0.06941
2007 4 12 54202 0.0699 0.5419 -0.07018
2007 4 13 54203 0.0730 0.5418 -0.07123
2007 4 14 54204 0.0761 0.5416 -0.07259
2007 4 15 54205 0.0792 0.5414 -0.07422
2007 4 16 54206 0.0823 0.5411 -0.07598
2007 4 17 54207 0.0854 0.5408 -0.07765
2007 4 18 54208 0.0884 0.5404 -0.07906
2007 4 19 54209 0.0915 0.5400 -0.08009
2007 4 20 54210 0.0946 0.5395 -0.08073
2007 4 21 54211 0.0977 0.5390 -0.08106
2007 4 22 54212 0.1008 0.5385 -0.08122
2007 4 23 54213 0.1039 0.5379 -0.08137
2007 4 24 54214 0.1069 0.5372 -0.08160
2007 4 25 54215 0.1100 0.5365 -0.08198
2007 4 26 54216 0.1130 0.5358 -0.08251
2007 4 27 54217 0.1161 0.5350 -0.08319
2007 4 28 54218 0.1191 0.5341 -0.08399
2007 4 29 54219 0.1221 0.5332 -0.08486
2007 4 30 54220 0.1251 0.5323 -0.08578
2007 5 1 54221 0.1281 0.5313 -0.08667
2007 5 2 54222 0.1311 0.5303 -0.08748
2007 5 3 54223 0.1341 0.5292 -0.08819
2007 5 4 54224 0.1370 0.5281 -0.08875
2007 5 5 54225 0.1400 0.5269 -0.08916
2007 5 6 54226 0.1429 0.5257 -0.08946
2007 5 7 54227 0.1458 0.5245 -0.08976
2007 5 8 54228 0.1487 0.5232 -0.09007
2007 5 9 54229 0.1516 0.5218 -0.09051
2007 5 10 54230 0.1545 0.5204 -0.09114
2007 5 11 54231 0.1573 0.5190 -0.09198
2007 5 12 54232 0.1601 0.5175 -0.09307
2007 5 13 54233 0.1629 0.5160 -0.09432
2007 5 14 54234 0.1657 0.5145 -0.09558
2007 5 15 54235 0.1685 0.5129 -0.09671
2007 5 16 54236 0.1713 0.5112 -0.09762
2007 5 17 54237 0.1740 0.5095 -0.09820
2007 5 18 54238 0.1767 0.5078 -0.09843
2007 5 19 54239 0.1794 0.5060 -0.09845
2007 5 20 54240 0.1821 0.5042 -0.09839
2007 5 21 54241 0.1847 0.5024 -0.09838
2007 5 22 54242 0.1873 0.5005 -0.09856
2007 5 23 54243 0.1899 0.4986 -0.09900
2007 5 24 54244 0.1925 0.4966 -0.09964
2007 5 25 54245 0.1951 0.4946 -0.10036
2007 5 26 54246 0.1976 0.4926 -0.10111
2007 5 27 54247 0.2001 0.4905 -0.10185
2007 5 28 54248 0.2026 0.4884 -0.10245
2007 5 29 54249 0.2050 0.4862 -0.10289
2007 5 30 54250 0.2074 0.4840 -0.10314
2007 5 31 54251 0.2098 0.4818 -0.10323
2007 6 1 54252 0.2122 0.4795 -0.10313
2007 6 2 54253 0.2145 0.4773 -0.10293
2007 6 3 54254 0.2168 0.4749 -0.10263
2007 6 4 54255 0.2191 0.4726 -0.10234
2007 6 5 54256 0.2213 0.4702 -0.10221
2007 6 6 54257 0.2236 0.4677 -0.10227
2007 6 7 54258 0.2257 0.4653 -0.10260
2007 6 8 54259 0.2279 0.4628 -0.10321
2007 6 9 54260 0.2300 0.4603 -0.10403
2007 6 10 54261 0.2321 0.4577 -0.10490
2007 6 11 54262 0.2342 0.4552 -0.10558
2007 6 12 54263 0.2362 0.4526 -0.10594
2007 6 13 54264 0.2382 0.4499 -0.10589
2007 6 14 54265 0.2401 0.4473 -0.10549
2007 6 15 54266 0.2420 0.4446 -0.10480
2007 6 16 54267 0.2439 0.4418 -0.10397
2007 6 17 54268 0.2458 0.4391 -0.10313
2007 6 18 54269 0.2476 0.4363 -0.10246
2007 6 19 54270 0.2493 0.4335 -0.10190
2007 6 20 54271 0.2511 0.4307 -0.10148
2007 6 21 54272 0.2528 0.4279 -0.10124
2007 6 22 54273 0.2544 0.4250 -0.10108
2007 6 23 54274 0.2561 0.4221 -0.10085
2007 6 24 54275 0.2576 0.4192 -0.10053
2007 6 25 54276 0.2592 0.4163 -0.10008
2007 6 26 54277 0.2607 0.4133 -0.09946
2007 6 27 54278 0.2621 0.4103 -0.09868
2007 6 28 54279 0.2636 0.4073 -0.09771
2007 6 29 54280 0.2649 0.4043 -0.09662
2007 6 30 54281 0.2663 0.4013 -0.09545
2007 7 1 54282 0.2676 0.3982 -0.09427
2007 7 2 54283 0.2688 0.3952 -0.09319
2007 7 3 54284 0.2700 0.3921 -0.09237
2007 7 4 54285 0.2712 0.3890 -0.09185
2007 7 5 54286 0.2723 0.3858 -0.09163
2007 7 6 54287 0.2734 0.3827 -0.09162
2007 7 7 54288 0.2744 0.3796 -0.09168
2007 7 8 54289 0.2754 0.3764 -0.09167
2007 7 9 54290 0.2763 0.3732 -0.09157
2007 7 10 54291 0.2772 0.3700 -0.09119
2007 7 11 54292 0.2781 0.3668 -0.09058
2007 7 12 54293 0.2789 0.3636 -0.08974
2007 7 13 54294 0.2796 0.3604 -0.08880
2007 7 14 54295 0.2803 0.3572 -0.08790
2007 7 15 54296 0.2810 0.3539 -0.08713
2007 7 16 54297 0.2816 0.3507 -0.08655
2007 7 17 54298 0.2821 0.3474 -0.08616
2007 7 18 54299 0.2827 0.3442 -0.08586
2007 7 19 54300 0.2831 0.3409 -0.08565
2007 7 20 54301 0.2835 0.3376 -0.08544
2007 7 21 54302 0.2839 0.3344 -0.08516
2007 7 22 54303 0.2842 0.3311 -0.08474
2007 7 23 54304 0.2844 0.3278 -0.08409
2007 7 24 54305 0.2846 0.3245 -0.08326
2007 7 25 54306 0.2848 0.3212 -0.08223
2007 7 26 54307 0.2849 0.3179 -0.08099
2007 7 27 54308 0.2849 0.3146 -0.07961
2007 7 28 54309 0.2849 0.3113 -0.07824
2007 7 29 54310 0.2848 0.3080 -0.07698
2007 7 30 54311 0.2847 0.3047 -0.07593
2007 7 31 54312 0.2845 0.3014 -0.07520
2007 8 1 54313 0.2843 0.2981 -0.07474
2007 8 2 54314 0.2840 0.2949 -0.07458
2007 8 3 54315 0.2837 0.2916 -0.07464
2007 8 4 54316 0.2833 0.2883 -0.07464
2007 8 5 54317 0.2828 0.2850 -0.07446
2007 8 6 54318 0.2823 0.2817 -0.07400
2007 8 7 54319 0.2818 0.2785 -0.07327
2007 8 8 54320 0.2812 0.2752 -0.07236
2007 8 9 54321 0.2805 0.2720 -0.07137
2007 8 10 54322 0.2797 0.2687 -0.07040
2007 8 11 54323 0.2790 0.2655 -0.06955
2007 8 12 54324 0.2781 0.2623 -0.06891
2007 8 13 54325 0.2772 0.2591 -0.06849
2007 8 14 54326 0.2762 0.2559 -0.06830
2007 8 15 54327 0.2752 0.2527 -0.06828
2007 8 16 54328 0.2741 0.2495 -0.06829
2007 8 17 54329 0.2730 0.2464 -0.06823
2007 8 18 54330 0.2718 0.2432 -0.06799
2007 8 19 54331 0.2705 0.2401 -0.06767
2007 8 20 54332 0.2692 0.2370 -0.06719
2007 8 21 54333 0.2679 0.2339 -0.06653
2007 8 22 54334 0.2664 0.2308 -0.06576
2007 8 23 54335 0.2649 0.2278 -0.06493
2007 8 24 54336 0.2634 0.2247 -0.06409
2007 8 25 54337 0.2618 0.2217 -0.06336
2007 8 26 54338 0.2601 0.2187 -0.06280
2007 8 27 54339 0.2584 0.2157 -0.06251
2007 8 28 54340 0.2566 0.2128 -0.06240
2007 8 29 54341 0.2548 0.2099 -0.06258
2007 8 30 54342 0.2529 0.2070 -0.06292
2007 8 31 54343 0.2509 0.2041 -0.06331
2007 9 1 54344 0.2489 0.2012 -0.06354
2007 9 2 54345 0.2468 0.1984 -0.06361
2007 9 3 54346 0.2447 0.1956 -0.06337
2007 9 4 54347 0.2425 0.1928 -0.06288
2007 9 5 54348 0.2403 0.1900 -0.06225
2007 9 6 54349 0.2380 0.1873 -0.06159
2007 9 7 54350 0.2356 0.1846 -0.06101
2007 9 8 54351 0.2332 0.1820 -0.06052
2007 9 9 54352 0.2307 0.1793 -0.06025
2007 9 10 54353 0.2282 0.1767 -0.06014
2007 9 11 54354 0.2256 0.1742 -0.06024
2007 9 12 54355 0.2230 0.1716 -0.06049
2007 9 13 54356 0.2203 0.1691 -0.06076
2007 9 14 54357 0.2176 0.1667 -0.06098
2007 9 15 54358 0.2148 0.1642 -0.06107
2007 9 16 54359 0.2119 0.1618 -0.06098
2007 9 17 54360 0.2090 0.1595 -0.06070
2007 9 18 54361 0.2060 0.1572 -0.06024
2007 9 19 54362 0.2030 0.1549 -0.05962
2007 9 20 54363 0.2000 0.1526 -0.05893
2007 9 21 54364 0.1969 0.1504 -0.05829
2007 9 22 54365 0.1937 0.1483 -0.05781
2007 9 23 54366 0.1905 0.1461 -0.05753
2007 9 24 54367 0.1872 0.1441 -0.05759
2007 9 25 54368 0.1839 0.1420 -0.05801
2007 9 26 54369 0.1806 0.1400 -0.05874
2007 9 27 54370 0.1772 0.1381 -0.05962
2007 9 28 54371 0.1737 0.1362 -0.06047
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)
53987 -66.97 .33 -5.39 .33
53988 -67.13 .37 -5.64 .37
53989 -67.17 .37 -5.70 .37
53990 -67.33 .74 -5.53 .34
53991 -67.58 .44 -5.38 .34
53992 -67.68 .44 -5.48 .34
53993 -67.51 .44 -5.72 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53987 -0.090 0.131 -0.075 0.330
53988 -0.122 0.147 -0.035 0.370
53989 -0.148 0.147 -0.061 0.370
53990 -0.144 0.294 -0.120 0.340
53991 -0.116 0.175 -0.122 0.340
53992 -0.097 0.175 -0.086 0.340
53993 -0.088 0.175 -0.065 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.
**************************************************************************
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
.
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
**************************************************************************