**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
14 September 2006 Vol. XIX No. 037
______________________________________________________________________
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 8 53986 .07513 .00003 .25466 .00004 .166477 .000017
6 9 9 53987 .07384 .00002 .25457 .00003 .164920 .000017
6 9 10 53988 .07243 .00002 .25420 .00003 .163399 .000018
6 9 11 53989 .07084 .00002 .25380 .00002 .162084 .000018
6 9 12 53990 .06914 .00001 .25348 .00002 .161085 .000019
6 9 13 53991 .06741 .00001 .25298 .00002 .160416 .000018
6 9 14 53992 .06578 .00001 .25226 .00001 .159922 .000016
_______________________________________________________________________
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 = .0558 + .1622 cos A - .0256 sin A - .1588 cos C - .0966 sin C
y = .3612 - .0161 cos A - .1467 sin A - .0966 cos C + .1588 sin C
UT1-UTC = .0986 - .00065 (MJD - 53997) - (UT2-UT1)
where A = 2*pi*(MJD-53992)/365.25 and C = 2*pi*(MJD-53992)/435.
TAI-UTC(MJD 53993) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53992)**0.80 S t = 0.00025 (MJD-53992)**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 15 53993 0.0642 0.2515 0.15958
2006 9 16 53994 0.0625 0.2508 0.15924
2006 9 17 53995 0.0608 0.2503 0.15880
2006 9 18 53996 0.0590 0.2498 0.15818
2006 9 19 53997 0.0572 0.2494 0.15737
2006 9 20 53998 0.0554 0.2490 0.15638
2006 9 21 53999 0.0535 0.2488 0.15525
2006 9 22 54000 0.0516 0.2485 0.15401
2006 9 23 54001 0.0496 0.2483 0.15273
2006 9 24 54002 0.0477 0.2482 0.15149
2006 9 25 54003 0.0457 0.2481 0.15035
2006 9 26 54004 0.0437 0.2481 0.14935
2006 9 27 54005 0.0417 0.2480 0.14852
2006 9 28 54006 0.0397 0.2481 0.14786
2006 9 29 54007 0.0377 0.2481 0.14732
2006 9 30 54008 0.0356 0.2482 0.14683
2006 10 1 54009 0.0335 0.2483 0.14629
2006 10 2 54010 0.0315 0.2484 0.14558
2006 10 3 54011 0.0294 0.2486 0.14458
2006 10 4 54012 0.0273 0.2488 0.14321
2006 10 5 54013 0.0251 0.2490 0.14151
2006 10 6 54014 0.0230 0.2492 0.13956
2006 10 7 54015 0.0209 0.2495 0.13754
2006 10 8 54016 0.0187 0.2498 0.13566
2006 10 9 54017 0.0166 0.2501 0.13406
2006 10 10 54018 0.0144 0.2504 0.13280
2006 10 11 54019 0.0122 0.2508 0.13185
2006 10 12 54020 0.0100 0.2512 0.13108
2006 10 13 54021 0.0078 0.2517 0.13037
2006 10 14 54022 0.0056 0.2521 0.12960
2006 10 15 54023 0.0034 0.2526 0.12869
2006 10 16 54024 0.0011 0.2531 0.12762
2006 10 17 54025 -0.0011 0.2536 0.12637
2006 10 18 54026 -0.0033 0.2542 0.12495
2006 10 19 54027 -0.0056 0.2548 0.12341
2006 10 20 54028 -0.0078 0.2554 0.12179
2006 10 21 54029 -0.0100 0.2561 0.12017
2006 10 22 54030 -0.0123 0.2568 0.11862
2006 10 23 54031 -0.0145 0.2575 0.11719
2006 10 24 54032 -0.0168 0.2582 0.11593
2006 10 25 54033 -0.0190 0.2590 0.11483
2006 10 26 54034 -0.0213 0.2598 0.11386
2006 10 27 54035 -0.0235 0.2606 0.11295
2006 10 28 54036 -0.0257 0.2615 0.11202
2006 10 29 54037 -0.0280 0.2624 0.11096
2006 10 30 54038 -0.0302 0.2633 0.10967
2006 10 31 54039 -0.0324 0.2642 0.10807
2006 11 1 54040 -0.0346 0.2652 0.10617
2006 11 2 54041 -0.0368 0.2662 0.10400
2006 11 3 54042 -0.0390 0.2673 0.10172
2006 11 4 54043 -0.0412 0.2684 0.09950
2006 11 5 54044 -0.0434 0.2695 0.09751
2006 11 6 54045 -0.0456 0.2706 0.09585
2006 11 7 54046 -0.0477 0.2718 0.09455
2006 11 8 54047 -0.0499 0.2730 0.09353
2006 11 9 54048 -0.0520 0.2742 0.09265
2006 11 10 54049 -0.0541 0.2755 0.09179
2006 11 11 54050 -0.0562 0.2768 0.09084
2006 11 12 54051 -0.0583 0.2781 0.08974
2006 11 13 54052 -0.0604 0.2795 0.08848
2006 11 14 54053 -0.0624 0.2809 0.08708
2006 11 15 54054 -0.0645 0.2824 0.08557
2006 11 16 54055 -0.0665 0.2838 0.08400
2006 11 17 54056 -0.0685 0.2853 0.08243
2006 11 18 54057 -0.0704 0.2868 0.08094
2006 11 19 54058 -0.0724 0.2883 0.07958
2006 11 20 54059 -0.0743 0.2899 0.07839
2006 11 21 54060 -0.0762 0.2915 0.07738
2006 11 22 54061 -0.0780 0.2932 0.07652
2006 11 23 54062 -0.0799 0.2948 0.07577
2006 11 24 54063 -0.0817 0.2965 0.07504
2006 11 25 54064 -0.0835 0.2982 0.07424
2006 11 26 54065 -0.0853 0.3000 0.07326
2006 11 27 54066 -0.0870 0.3018 0.07203
2006 11 28 54067 -0.0887 0.3036 0.07051
2006 11 29 54068 -0.0903 0.3054 0.06876
2006 11 30 54069 -0.0920 0.3073 0.06687
2006 12 1 54070 -0.0936 0.3092 0.06499
2006 12 2 54071 -0.0951 0.3111 0.06327
2006 12 3 54072 -0.0967 0.3131 0.06183
2006 12 4 54073 -0.0982 0.3150 0.06071
2006 12 5 54074 -0.0996 0.3170 0.05988
2006 12 6 54075 -0.1011 0.3191 0.05924
2006 12 7 54076 -0.1025 0.3211 0.05865
2006 12 8 54077 -0.1038 0.3232 0.05802
2006 12 9 54078 -0.1051 0.3253 0.05726
2006 12 10 54079 -0.1064 0.3274 0.05634
2006 12 11 54080 -0.1076 0.3296 0.05528
2006 12 12 54081 -0.1088 0.3317 0.05410
2006 12 13 54082 -0.1099 0.3339 0.05287
2006 12 14 54083 -0.1111 0.3361 0.05164
2006 12 15 54084 -0.1121 0.3384 0.05047
2006 12 16 54085 -0.1131 0.3406 0.04942
2006 12 17 54086 -0.1141 0.3429 0.04853
2006 12 18 54087 -0.1150 0.3452 0.04783
2006 12 19 54088 -0.1159 0.3475 0.04731
2006 12 20 54089 -0.1168 0.3498 0.04693
2006 12 21 54090 -0.1176 0.3522 0.04661
2006 12 22 54091 -0.1183 0.3545 0.04625
2006 12 23 54092 -0.1190 0.3569 0.04573
2006 12 24 54093 -0.1197 0.3593 0.04498
2006 12 25 54094 -0.1203 0.3617 0.04396
2006 12 26 54095 -0.1208 0.3641 0.04271
2006 12 27 54096 -0.1213 0.3666 0.04131
2006 12 28 54097 -0.1218 0.3690 0.03989
2006 12 29 54098 -0.1222 0.3715 0.03850
2006 12 30 54099 -0.1225 0.3740 0.03735
2006 12 31 54100 -0.1229 0.3764 0.03648
2007 1 1 54101 -0.1231 0.3789 0.03589
2007 1 2 54102 -0.1233 0.3814 0.03548
2007 1 3 54103 -0.1235 0.3839 0.03516
2007 1 4 54104 -0.1236 0.3865 0.03479
2007 1 5 54105 -0.1236 0.3890 0.03430
2007 1 6 54106 -0.1237 0.3915 0.03363
2007 1 7 54107 -0.1236 0.3940 0.03279
2007 1 8 54108 -0.1235 0.3966 0.03181
2007 1 9 54109 -0.1234 0.3991 0.03074
2007 1 10 54110 -0.1232 0.4017 0.02964
2007 1 11 54111 -0.1229 0.4042 0.02858
2007 1 12 54112 -0.1226 0.4068 0.02763
2007 1 13 54113 -0.1222 0.4093 0.02681
2007 1 14 54114 -0.1218 0.4119 0.02616
2007 1 15 54115 -0.1214 0.4144 0.02568
2007 1 16 54116 -0.1208 0.4170 0.02534
2007 1 17 54117 -0.1203 0.4195 0.02506
2007 1 18 54118 -0.1197 0.4220 0.02475
2007 1 19 54119 -0.1190 0.4246 0.02430
2007 1 20 54120 -0.1183 0.4271 0.02359
2007 1 21 54121 -0.1175 0.4296 0.02257
2007 1 22 54122 -0.1167 0.4321 0.02127
2007 1 23 54123 -0.1158 0.4346 0.01978
2007 1 24 54124 -0.1149 0.4371 0.01825
2007 1 25 54125 -0.1139 0.4396 0.01683
2007 1 26 54126 -0.1129 0.4421 0.01564
2007 1 27 54127 -0.1118 0.4446 0.01474
2007 1 28 54128 -0.1107 0.4470 0.01412
2007 1 29 54129 -0.1095 0.4495 0.01370
2007 1 30 54130 -0.1083 0.4519 0.01337
2007 1 31 54131 -0.1070 0.4543 0.01303
2007 2 1 54132 -0.1057 0.4567 0.01256
2007 2 2 54133 -0.1043 0.4591 0.01192
2007 2 3 54134 -0.1029 0.4615 0.01109
2007 2 4 54135 -0.1014 0.4638 0.01009
2007 2 5 54136 -0.0999 0.4661 0.00896
2007 2 6 54137 -0.0984 0.4685 0.00779
2007 2 7 54138 -0.0968 0.4707 0.00662
2007 2 8 54139 -0.0951 0.4730 0.00554
2007 2 9 54140 -0.0934 0.4753 0.00459
2007 2 10 54141 -0.0917 0.4775 0.00380
2007 2 11 54142 -0.0899 0.4797 0.00318
2007 2 12 54143 -0.0881 0.4819 0.00269
2007 2 13 54144 -0.0862 0.4840 0.00230
2007 2 14 54145 -0.0843 0.4862 0.00191
2007 2 15 54146 -0.0823 0.4883 0.00142
2007 2 16 54147 -0.0803 0.4904 0.00069
2007 2 17 54148 -0.0783 0.4924 -0.00035
2007 2 18 54149 -0.0762 0.4944 -0.00172
2007 2 19 54150 -0.0741 0.4964 -0.00337
2007 2 20 54151 -0.0720 0.4984 -0.00513
2007 2 21 54152 -0.0698 0.5003 -0.00683
2007 2 22 54153 -0.0675 0.5022 -0.00831
2007 2 23 54154 -0.0653 0.5041 -0.00949
2007 2 24 54155 -0.0630 0.5059 -0.01034
2007 2 25 54156 -0.0606 0.5077 -0.01096
2007 2 26 54157 -0.0582 0.5095 -0.01146
2007 2 27 54158 -0.0558 0.5113 -0.01194
2007 2 28 54159 -0.0534 0.5130 -0.01253
2007 3 1 54160 -0.0509 0.5146 -0.01327
2007 3 2 54161 -0.0484 0.5163 -0.01421
2007 3 3 54162 -0.0459 0.5179 -0.01533
2007 3 4 54163 -0.0433 0.5194 -0.01660
2007 3 5 54164 -0.0407 0.5210 -0.01795
2007 3 6 54165 -0.0381 0.5224 -0.01931
2007 3 7 54166 -0.0354 0.5239 -0.02062
2007 3 8 54167 -0.0328 0.5253 -0.02183
2007 3 9 54168 -0.0300 0.5267 -0.02289
2007 3 10 54169 -0.0273 0.5280 -0.02380
2007 3 11 54170 -0.0246 0.5293 -0.02458
2007 3 12 54171 -0.0218 0.5305 -0.02526
2007 3 13 54172 -0.0190 0.5317 -0.02593
2007 3 14 54173 -0.0161 0.5329 -0.02669
2007 3 15 54174 -0.0133 0.5340 -0.02764
2007 3 16 54175 -0.0104 0.5351 -0.02891
2007 3 17 54176 -0.0075 0.5362 -0.03054
2007 3 18 54177 -0.0046 0.5372 -0.03251
2007 3 19 54178 -0.0016 0.5381 -0.03470
2007 3 20 54179 0.0013 0.5390 -0.03689
2007 3 21 54180 0.0043 0.5399 -0.03888
2007 3 22 54181 0.0073 0.5407 -0.04049
2007 3 23 54182 0.0103 0.5415 -0.04167
2007 3 24 54183 0.0133 0.5422 -0.04246
2007 3 25 54184 0.0164 0.5430 -0.04299
2007 3 26 54185 0.0194 0.5436 -0.04340
2007 3 27 54186 0.0225 0.5443 -0.04385
2007 3 28 54187 0.0256 0.5449 -0.04441
2007 3 29 54188 0.0287 0.5454 -0.04513
2007 3 30 54189 0.0318 0.5459 -0.04601
2007 3 31 54190 0.0350 0.5463 -0.04701
2007 4 1 54191 0.0381 0.5467 -0.04809
2007 4 2 54192 0.0413 0.5471 -0.04917
2007 4 3 54193 0.0444 0.5474 -0.05021
2007 4 4 54194 0.0476 0.5477 -0.05117
2007 4 5 54195 0.0507 0.5479 -0.05202
2007 4 6 54196 0.0539 0.5480 -0.05275
2007 4 7 54197 0.0571 0.5481 -0.05338
2007 4 8 54198 0.0603 0.5482 -0.05394
2007 4 9 54199 0.0635 0.5482 -0.05446
2007 4 10 54200 0.0666 0.5482 -0.05501
2007 4 11 54201 0.0698 0.5481 -0.05565
2007 4 12 54202 0.0730 0.5480 -0.05648
2007 4 13 54203 0.0762 0.5478 -0.05757
2007 4 14 54204 0.0794 0.5476 -0.05895
2007 4 15 54205 0.0826 0.5473 -0.06057
2007 4 16 54206 0.0858 0.5470 -0.06231
2007 4 17 54207 0.0890 0.5466 -0.06401
2007 4 18 54208 0.0921 0.5462 -0.06551
2007 4 19 54209 0.0953 0.5458 -0.06669
2007 4 20 54210 0.0985 0.5452 -0.06750
2007 4 21 54211 0.1017 0.5447 -0.06802
2007 4 22 54212 0.1048 0.5441 -0.06839
2007 4 23 54213 0.1080 0.5434 -0.06874
2007 4 24 54214 0.1111 0.5427 -0.06924
2007 4 25 54215 0.1143 0.5420 -0.07000
2007 4 26 54216 0.1174 0.5412 -0.07098
2007 4 27 54217 0.1205 0.5403 -0.07210
2007 4 28 54218 0.1236 0.5395 -0.07331
2007 4 29 54219 0.1267 0.5385 -0.07456
2007 4 30 54220 0.1298 0.5375 -0.07574
2007 5 1 54221 0.1329 0.5365 -0.07680
2007 5 2 54222 0.1360 0.5354 -0.07770
2007 5 3 54223 0.1390 0.5343 -0.07844
2007 5 4 54224 0.1421 0.5331 -0.07899
2007 5 5 54225 0.1451 0.5319 -0.07939
2007 5 6 54226 0.1481 0.5307 -0.07963
2007 5 7 54227 0.1511 0.5294 -0.07982
2007 5 8 54228 0.1541 0.5280 -0.08010
2007 5 9 54229 0.1571 0.5266 -0.08051
2007 5 10 54230 0.1600 0.5252 -0.08119
2007 5 11 54231 0.1630 0.5237 -0.08219
2007 5 12 54232 0.1659 0.5222 -0.08349
2007 5 13 54233 0.1688 0.5206 -0.08496
2007 5 14 54234 0.1716 0.5190 -0.08635
2007 5 15 54235 0.1745 0.5173 -0.08750
2007 5 16 54236 0.1773 0.5156 -0.08825
2007 5 17 54237 0.1801 0.5139 -0.08861
2007 5 18 54238 0.1829 0.5121 -0.08859
2007 5 19 54239 0.1857 0.5103 -0.08834
2007 5 20 54240 0.1885 0.5084 -0.08798
2007 5 21 54241 0.1912 0.5065 -0.08775
2007 5 22 54242 0.1939 0.5046 -0.08759
2007 5 23 54243 0.1966 0.5026 -0.08758
2007 5 24 54244 0.1992 0.5006 -0.08776
2007 5 25 54245 0.2018 0.4985 -0.08808
2007 5 26 54246 0.2044 0.4964 -0.08836
2007 5 27 54247 0.2070 0.4943 -0.08861
2007 5 28 54248 0.2095 0.4921 -0.08876
2007 5 29 54249 0.2121 0.4899 -0.08877
2007 5 30 54250 0.2145 0.4876 -0.08862
2007 5 31 54251 0.2170 0.4854 -0.08826
2007 6 1 54252 0.2194 0.4830 -0.08772
2007 6 2 54253 0.2218 0.4807 -0.08705
2007 6 3 54254 0.2242 0.4783 -0.08629
2007 6 4 54255 0.2265 0.4758 -0.08555
2007 6 5 54256 0.2289 0.4734 -0.08498
2007 6 6 54257 0.2311 0.4709 -0.08468
2007 6 7 54258 0.2334 0.4684 -0.08467
2007 6 8 54259 0.2356 0.4658 -0.08493
2007 6 9 54260 0.2378 0.4632 -0.08537
2007 6 10 54261 0.2399 0.4606 -0.08585
2007 6 11 54262 0.2420 0.4579 -0.08633
2007 6 12 54263 0.2441 0.4552 -0.08658
2007 6 13 54264 0.2461 0.4525 -0.08657
2007 6 14 54265 0.2481 0.4497 -0.08626
2007 6 15 54266 0.2501 0.4470 -0.08573
2007 6 16 54267 0.2520 0.4441 -0.08513
2007 6 17 54268 0.2539 0.4413 -0.08458
2007 6 18 54269 0.2557 0.4384 -0.08418
2007 6 19 54270 0.2575 0.4356 -0.08394
2007 6 20 54271 0.2593 0.4326 -0.08380
2007 6 21 54272 0.2611 0.4297 -0.08378
2007 6 22 54273 0.2627 0.4267 -0.08379
2007 6 23 54274 0.2644 0.4237 -0.08377
2007 6 24 54275 0.2660 0.4207 -0.08363
2007 6 25 54276 0.2676 0.4177 -0.08328
2007 6 26 54277 0.2691 0.4146 -0.08275
2007 6 27 54278 0.2706 0.4115 -0.08200
2007 6 28 54279 0.2720 0.4084 -0.08099
2007 6 29 54280 0.2734 0.4053 -0.07978
2007 6 30 54281 0.2748 0.4021 -0.07850
2007 7 1 54282 0.2761 0.3989 -0.07725
2007 7 2 54283 0.2773 0.3958 -0.07611
2007 7 3 54284 0.2785 0.3925 -0.07524
2007 7 4 54285 0.2797 0.3893 -0.07459
2007 7 5 54286 0.2808 0.3861 -0.07427
2007 7 6 54287 0.2819 0.3828 -0.07424
2007 7 7 54288 0.2829 0.3795 -0.07425
2007 7 8 54289 0.2839 0.3762 -0.07418
2007 7 9 54290 0.2848 0.3729 -0.07391
2007 7 10 54291 0.2857 0.3696 -0.07337
2007 7 11 54292 0.2865 0.3663 -0.07259
2007 7 12 54293 0.2873 0.3629 -0.07163
2007 7 13 54294 0.2880 0.3595 -0.07058
2007 7 14 54295 0.2887 0.3562 -0.06955
2007 7 15 54296 0.2893 0.3528 -0.06866
2007 7 16 54297 0.2899 0.3494 -0.06799
2007 7 17 54298 0.2904 0.3460 -0.06754
2007 7 18 54299 0.2909 0.3426 -0.06727
2007 7 19 54300 0.2913 0.3392 -0.06708
2007 7 20 54301 0.2916 0.3357 -0.06685
2007 7 21 54302 0.2919 0.3323 -0.06647
2007 7 22 54303 0.2922 0.3288 -0.06602
2007 7 23 54304 0.2924 0.3254 -0.06542
2007 7 24 54305 0.2925 0.3219 -0.06462
2007 7 25 54306 0.2926 0.3185 -0.06368
2007 7 26 54307 0.2926 0.3150 -0.06262
2007 7 27 54308 0.2926 0.3116 -0.06149
2007 7 28 54309 0.2925 0.3081 -0.06039
2007 7 29 54310 0.2924 0.3046 -0.05939
2007 7 30 54311 0.2922 0.3012 -0.05858
2007 7 31 54312 0.2919 0.2977 -0.05792
2007 8 1 54313 0.2916 0.2943 -0.05754
2007 8 2 54314 0.2912 0.2908 -0.05737
2007 8 3 54315 0.2908 0.2873 -0.05733
2007 8 4 54316 0.2903 0.2839 -0.05723
2007 8 5 54317 0.2898 0.2805 -0.05705
2007 8 6 54318 0.2891 0.2770 -0.05660
2007 8 7 54319 0.2885 0.2736 -0.05587
2007 8 8 54320 0.2877 0.2701 -0.05493
2007 8 9 54321 0.2869 0.2667 -0.05387
2007 8 10 54322 0.2861 0.2633 -0.05278
2007 8 11 54323 0.2852 0.2599 -0.05173
2007 8 12 54324 0.2842 0.2565 -0.05087
2007 8 13 54325 0.2832 0.2531 -0.05019
2007 8 14 54326 0.2821 0.2498 -0.04975
2007 8 15 54327 0.2809 0.2464 -0.04951
2007 8 16 54328 0.2797 0.2431 -0.04933
2007 8 17 54329 0.2784 0.2398 -0.04914
2007 8 18 54330 0.2771 0.2364 -0.04886
2007 8 19 54331 0.2757 0.2331 -0.04840
2007 8 20 54332 0.2742 0.2299 -0.04777
2007 8 21 54333 0.2727 0.2266 -0.04693
2007 8 22 54334 0.2711 0.2234 -0.04588
2007 8 23 54335 0.2695 0.2201 -0.04472
2007 8 24 54336 0.2678 0.2169 -0.04356
2007 8 25 54337 0.2660 0.2138 -0.04249
2007 8 26 54338 0.2641 0.2106 -0.04158
2007 8 27 54339 0.2623 0.2075 -0.04098
2007 8 28 54340 0.2603 0.2044 -0.04073
2007 8 29 54341 0.2583 0.2013 -0.04084
2007 8 30 54342 0.2562 0.1982 -0.04116
2007 8 31 54343 0.2541 0.1952 -0.04154
2007 9 1 54344 0.2519 0.1922 -0.04178
2007 9 2 54345 0.2496 0.1892 -0.04167
2007 9 3 54346 0.2473 0.1862 -0.04123
2007 9 4 54347 0.2449 0.1833 -0.04055
2007 9 5 54348 0.2425 0.1804 -0.03976
2007 9 6 54349 0.2400 0.1775 -0.03898
2007 9 7 54350 0.2374 0.1747 -0.03832
2007 9 8 54351 0.2348 0.1719 -0.03778
2007 9 9 54352 0.2322 0.1692 -0.03750
2007 9 10 54353 0.2294 0.1664 -0.03741
2007 9 11 54354 0.2267 0.1638 -0.03747
2007 9 12 54355 0.2238 0.1611 -0.03769
2007 9 13 54356 0.2209 0.1585 -0.03794
2007 9 14 54357 0.2180 0.1559 -0.03816
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)
53973 -66.05 .33 -4.73 .34
53974 -66.24 .25 -4.92 .34
53975 -66.36 .25 -5.19 .34
53976 -66.42 .74 -5.42 .34
53977 -66.59 .30 -5.70 .34
53978 -66.91 .30 -6.06 .34
53979 -67.16 .30 -6.35 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53973 -0.114 0.131 -0.200 0.340
53974 -0.127 0.099 -0.207 0.340
53975 -0.140 0.099 -0.217 0.340
53976 -0.145 0.294 -0.211 0.340
53977 -0.151 0.119 -0.221 0.340
53978 -0.151 0.119 -0.234 0.340
53979 -0.139 0.119 -0.237 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
**************************************************************************
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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