**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
17 August 2006 Vol. XIX No. 033
______________________________________________________________________
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 11 53958 .10705 .00002 .26149 .00006 .179509 .000012
6 8 12 53959 .10607 .00002 .26055 .00006 .178461 .000013
6 8 13 53960 .10519 .00002 .25972 .00005 .177353 .000014
6 8 14 53961 .10443 .00001 .25907 .00005 .176380 .000013
6 8 15 53962 .10349 .00001 .25863 .00005 .175673 .000013
6 8 16 53963 .10219 .00001 .25826 .00005 .175273 .000013
6 8 17 53964 .10068 .00001 .25779 .00005 .175129 .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 = .0525 + .1717 cos A + .0505 sin A - .1199 cos C - .1558 sin C
y = .3536 + .0517 cos A - .1510 sin A - .1558 cos C + .1199 sin C
UT1-UTC = .1224 - .00059 (MJD - 53969) - (UT2-UT1)
where A = 2*pi*(MJD-53964)/365.25 and C = 2*pi*(MJD-53964)/435.
TAI-UTC(MJD 53965) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53964)**0.80 S t = 0.00025 (MJD-53964)**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 8 18 53965 0.0992 0.2572 0.17520
2006 8 19 53966 0.0977 0.2565 0.17535
2006 8 20 53967 0.0963 0.2558 0.17545
2006 8 21 53968 0.0950 0.2551 0.17541
2006 8 22 53969 0.0936 0.2543 0.17520
2006 8 23 53970 0.0922 0.2535 0.17481
2006 8 24 53971 0.0909 0.2527 0.17427
2006 8 25 53972 0.0895 0.2519 0.17359
2006 8 26 53973 0.0881 0.2511 0.17282
2006 8 27 53974 0.0868 0.2503 0.17202
2006 8 28 53975 0.0853 0.2495 0.17127
2006 8 29 53976 0.0839 0.2487 0.17061
2006 8 30 53977 0.0825 0.2480 0.17008
2006 8 31 53978 0.0810 0.2472 0.16968
2006 9 1 53979 0.0795 0.2465 0.16942
2006 9 2 53980 0.0780 0.2458 0.16925
2006 9 3 53981 0.0765 0.2451 0.16910
2006 9 4 53982 0.0749 0.2444 0.16886
2006 9 5 53983 0.0733 0.2437 0.16839
2006 9 6 53984 0.0717 0.2431 0.16758
2006 9 7 53985 0.0701 0.2425 0.16637
2006 9 8 53986 0.0684 0.2419 0.16484
2006 9 9 53987 0.0667 0.2414 0.16313
2006 9 10 53988 0.0650 0.2408 0.16145
2006 9 11 53989 0.0632 0.2403 0.16000
2006 9 12 53990 0.0615 0.2399 0.15886
2006 9 13 53991 0.0597 0.2394 0.15804
2006 9 14 53992 0.0578 0.2390 0.15744
2006 9 15 53993 0.0560 0.2386 0.15693
2006 9 16 53994 0.0541 0.2382 0.15641
2006 9 17 53995 0.0522 0.2379 0.15578
2006 9 18 53996 0.0503 0.2376 0.15499
2006 9 19 53997 0.0483 0.2373 0.15400
2006 9 20 53998 0.0464 0.2371 0.15284
2006 9 21 53999 0.0444 0.2369 0.15152
2006 9 22 54000 0.0424 0.2367 0.15010
2006 9 23 54001 0.0403 0.2365 0.14865
2006 9 24 54002 0.0383 0.2364 0.14725
2006 9 25 54003 0.0362 0.2363 0.14595
2006 9 26 54004 0.0341 0.2362 0.14483
2006 9 27 54005 0.0320 0.2362 0.14388
2006 9 28 54006 0.0299 0.2362 0.14312
2006 9 29 54007 0.0278 0.2362 0.14249
2006 9 30 54008 0.0256 0.2363 0.14192
2006 10 1 54009 0.0234 0.2364 0.14131
2006 10 2 54010 0.0212 0.2365 0.14054
2006 10 3 54011 0.0190 0.2367 0.13950
2006 10 4 54012 0.0168 0.2369 0.13810
2006 10 5 54013 0.0146 0.2371 0.13637
2006 10 6 54014 0.0123 0.2374 0.13440
2006 10 7 54015 0.0101 0.2377 0.13236
2006 10 8 54016 0.0079 0.2380 0.13047
2006 10 9 54017 0.0056 0.2384 0.12887
2006 10 10 54018 0.0033 0.2388 0.12760
2006 10 11 54019 0.0010 0.2392 0.12663
2006 10 12 54020 -0.0013 0.2397 0.12585
2006 10 13 54021 -0.0036 0.2402 0.12512
2006 10 14 54022 -0.0059 0.2408 0.12435
2006 10 15 54023 -0.0083 0.2413 0.12344
2006 10 16 54024 -0.0106 0.2419 0.12236
2006 10 17 54025 -0.0129 0.2426 0.12111
2006 10 18 54026 -0.0152 0.2433 0.11971
2006 10 19 54027 -0.0176 0.2440 0.11819
2006 10 20 54028 -0.0199 0.2448 0.11662
2006 10 21 54029 -0.0223 0.2456 0.11508
2006 10 22 54030 -0.0246 0.2464 0.11362
2006 10 23 54031 -0.0269 0.2473 0.11232
2006 10 24 54032 -0.0293 0.2482 0.11119
2006 10 25 54033 -0.0316 0.2491 0.11025
2006 10 26 54034 -0.0339 0.2501 0.10947
2006 10 27 54035 -0.0362 0.2511 0.10878
2006 10 28 54036 -0.0385 0.2521 0.10811
2006 10 29 54037 -0.0408 0.2532 0.10733
2006 10 30 54038 -0.0431 0.2543 0.10635
2006 10 31 54039 -0.0454 0.2555 0.10508
2006 11 1 54040 -0.0477 0.2567 0.10350
2006 11 2 54041 -0.0500 0.2579 0.10167
2006 11 3 54042 -0.0522 0.2592 0.09972
2006 11 4 54043 -0.0545 0.2605 0.09782
2006 11 5 54044 -0.0567 0.2618 0.09614
2006 11 6 54045 -0.0589 0.2632 0.09479
2006 11 7 54046 -0.0612 0.2646 0.09377
2006 11 8 54047 -0.0633 0.2660 0.09303
2006 11 9 54048 -0.0655 0.2675 0.09243
2006 11 10 54049 -0.0677 0.2690 0.09184
2006 11 11 54050 -0.0698 0.2705 0.09117
2006 11 12 54051 -0.0719 0.2721 0.09036
2006 11 13 54052 -0.0740 0.2737 0.08939
2006 11 14 54053 -0.0761 0.2753 0.08829
2006 11 15 54054 -0.0781 0.2770 0.08707
2006 11 16 54055 -0.0802 0.2787 0.08579
2006 11 17 54056 -0.0822 0.2805 0.08452
2006 11 18 54057 -0.0841 0.2822 0.08332
2006 11 19 54058 -0.0861 0.2840 0.08225
2006 11 20 54059 -0.0880 0.2859 0.08135
2006 11 21 54060 -0.0899 0.2877 0.08065
2006 11 22 54061 -0.0918 0.2896 0.08011
2006 11 23 54062 -0.0936 0.2916 0.07968
2006 11 24 54063 -0.0954 0.2935 0.07928
2006 11 25 54064 -0.0972 0.2955 0.07881
2006 11 26 54065 -0.0990 0.2975 0.07816
2006 11 27 54066 -0.1007 0.2996 0.07726
2006 11 28 54067 -0.1024 0.3016 0.07608
2006 11 29 54068 -0.1040 0.3037 0.07465
2006 11 30 54069 -0.1056 0.3059 0.07309
2006 12 1 54070 -0.1072 0.3080 0.07140
2006 12 2 54071 -0.1087 0.3102 0.06987
2006 12 3 54072 -0.1102 0.3124 0.06860
2006 12 4 54073 -0.1117 0.3146 0.06766
2006 12 5 54074 -0.1131 0.3169 0.06698
2006 12 6 54075 -0.1145 0.3192 0.06649
2006 12 7 54076 -0.1158 0.3215 0.06605
2006 12 8 54077 -0.1171 0.3238 0.06554
2006 12 9 54078 -0.1184 0.3261 0.06489
2006 12 10 54079 -0.1196 0.3285 0.06408
2006 12 11 54080 -0.1208 0.3309 0.06312
2006 12 12 54081 -0.1219 0.3333 0.06204
2006 12 13 54082 -0.1230 0.3357 0.06090
2006 12 14 54083 -0.1240 0.3382 0.05975
2006 12 15 54084 -0.1250 0.3406 0.05867
2006 12 16 54085 -0.1260 0.3431 0.05770
2006 12 17 54086 -0.1269 0.3456 0.05690
2006 12 18 54087 -0.1277 0.3481 0.05628
2006 12 19 54088 -0.1285 0.3507 0.05584
2006 12 20 54089 -0.1293 0.3532 0.05553
2006 12 21 54090 -0.1300 0.3558 0.05527
2006 12 22 54091 -0.1307 0.3584 0.05496
2006 12 23 54092 -0.1313 0.3610 0.05449
2006 12 24 54093 -0.1318 0.3636 0.05378
2006 12 25 54094 -0.1323 0.3662 0.05279
2006 12 26 54095 -0.1328 0.3688 0.05156
2006 12 27 54096 -0.1332 0.3714 0.05019
2006 12 28 54097 -0.1336 0.3741 0.04881
2006 12 29 54098 -0.1339 0.3767 0.04757
2006 12 30 54099 -0.1341 0.3794 0.04656
2006 12 31 54100 -0.1343 0.3820 0.04584
2007 1 1 54101 -0.1345 0.3847 0.04539
2007 1 2 54102 -0.1346 0.3874 0.04514
2007 1 3 54103 -0.1346 0.3901 0.04497
2007 1 4 54104 -0.1346 0.3927 0.04477
2007 1 5 54105 -0.1346 0.3954 0.04444
2007 1 6 54106 -0.1344 0.3981 0.04393
2007 1 7 54107 -0.1343 0.4008 0.04326
2007 1 8 54108 -0.1341 0.4035 0.04244
2007 1 9 54109 -0.1338 0.4062 0.04154
2007 1 10 54110 -0.1334 0.4089 0.04061
2007 1 11 54111 -0.1331 0.4116 0.03972
2007 1 12 54112 -0.1326 0.4142 0.03893
2007 1 13 54113 -0.1321 0.4169 0.03829
2007 1 14 54114 -0.1316 0.4196 0.03781
2007 1 15 54115 -0.1310 0.4223 0.03751
2007 1 16 54116 -0.1304 0.4249 0.03735
2007 1 17 54117 -0.1297 0.4276 0.03725
2007 1 18 54118 -0.1289 0.4302 0.03713
2007 1 19 54119 -0.1281 0.4329 0.03687
2007 1 20 54120 -0.1272 0.4355 0.03636
2007 1 21 54121 -0.1263 0.4381 0.03555
2007 1 22 54122 -0.1254 0.4408 0.03445
2007 1 23 54123 -0.1243 0.4434 0.03317
2007 1 24 54124 -0.1233 0.4459 0.03185
2007 1 25 54125 -0.1221 0.4485 0.03064
2007 1 26 54126 -0.1210 0.4511 0.02967
2007 1 27 54127 -0.1197 0.4536 0.02900
2007 1 28 54128 -0.1185 0.4562 0.02859
2007 1 29 54129 -0.1171 0.4587 0.02840
2007 1 30 54130 -0.1158 0.4612 0.02829
2007 1 31 54131 -0.1143 0.4637 0.02817
2007 2 1 54132 -0.1129 0.4661 0.02792
2007 2 2 54133 -0.1113 0.4686 0.02750
2007 2 3 54134 -0.1098 0.4710 0.02688
2007 2 4 54135 -0.1082 0.4734 0.02609
2007 2 5 54136 -0.1065 0.4758 0.02517
2007 2 6 54137 -0.1048 0.4782 0.02419
2007 2 7 54138 -0.1030 0.4805 0.02321
2007 2 8 54139 -0.1012 0.4828 0.02230
2007 2 9 54140 -0.0994 0.4851 0.02151
2007 2 10 54141 -0.0975 0.4874 0.02086
2007 2 11 54142 -0.0955 0.4896 0.02035
2007 2 12 54143 -0.0935 0.4918 0.01997
2007 2 13 54144 -0.0915 0.4940 0.01966
2007 2 14 54145 -0.0894 0.4962 0.01933
2007 2 15 54146 -0.0873 0.4983 0.01888
2007 2 16 54147 -0.0851 0.5004 0.01817
2007 2 17 54148 -0.0829 0.5025 0.01714
2007 2 18 54149 -0.0807 0.5045 0.01578
2007 2 19 54150 -0.0784 0.5066 0.01415
2007 2 20 54151 -0.0761 0.5085 0.01244
2007 2 21 54152 -0.0738 0.5105 0.01082
2007 2 22 54153 -0.0714 0.5124 0.00946
2007 2 23 54154 -0.0689 0.5143 0.00845
2007 2 24 54155 -0.0664 0.5162 0.00778
2007 2 25 54156 -0.0639 0.5180 0.00736
2007 2 26 54157 -0.0614 0.5198 0.00706
2007 2 27 54158 -0.0588 0.5216 0.00675
2007 2 28 54159 -0.0561 0.5234 0.00633
2007 3 1 54160 -0.0535 0.5251 0.00574
2007 3 2 54161 -0.0508 0.5267 0.00493
2007 3 3 54162 -0.0481 0.5284 0.00394
2007 3 4 54163 -0.0453 0.5300 0.00279
2007 3 5 54164 -0.0425 0.5315 0.00156
2007 3 6 54165 -0.0397 0.5330 0.00031
2007 3 7 54166 -0.0369 0.5345 -0.00089
2007 3 8 54167 -0.0340 0.5359 -0.00199
2007 3 9 54168 -0.0311 0.5373 -0.00296
2007 3 10 54169 -0.0282 0.5387 -0.00376
2007 3 11 54170 -0.0253 0.5400 -0.00442
2007 3 12 54171 -0.0223 0.5413 -0.00495
2007 3 13 54172 -0.0193 0.5425 -0.00545
2007 3 14 54173 -0.0163 0.5437 -0.00599
2007 3 15 54174 -0.0132 0.5449 -0.00671
2007 3 16 54175 -0.0102 0.5460 -0.00772
2007 3 17 54176 -0.0071 0.5470 -0.00910
2007 3 18 54177 -0.0040 0.5480 -0.01079
2007 3 19 54178 -0.0009 0.5490 -0.01267
2007 3 20 54179 0.0023 0.5499 -0.01451
2007 3 21 54180 0.0054 0.5508 -0.01610
2007 3 22 54181 0.0086 0.5517 -0.01731
2007 3 23 54182 0.0118 0.5525 -0.01812
2007 3 24 54183 0.0150 0.5532 -0.01856
2007 3 25 54184 0.0182 0.5539 -0.01878
2007 3 26 54185 0.0215 0.5546 -0.01896
2007 3 27 54186 0.0247 0.5552 -0.01914
2007 3 28 54187 0.0280 0.5558 -0.01944
2007 3 29 54188 0.0313 0.5563 -0.01999
2007 3 30 54189 0.0345 0.5568 -0.02075
2007 3 31 54190 0.0378 0.5572 -0.02161
2007 4 1 54191 0.0411 0.5576 -0.02256
2007 4 2 54192 0.0444 0.5579 -0.02354
2007 4 3 54193 0.0478 0.5582 -0.02448
2007 4 4 54194 0.0511 0.5584 -0.02534
2007 4 5 54195 0.0544 0.5586 -0.02603
2007 4 6 54196 0.0578 0.5587 -0.02653
2007 4 7 54197 0.0611 0.5588 -0.02684
2007 4 8 54198 0.0644 0.5589 -0.02699
2007 4 9 54199 0.0678 0.5589 -0.02702
2007 4 10 54200 0.0711 0.5588 -0.02710
2007 4 11 54201 0.0745 0.5587 -0.02735
2007 4 12 54202 0.0778 0.5586 -0.02787
2007 4 13 54203 0.0812 0.5584 -0.02871
2007 4 14 54204 0.0845 0.5581 -0.02988
2007 4 15 54205 0.0879 0.5578 -0.03132
2007 4 16 54206 0.0912 0.5575 -0.03299
2007 4 17 54207 0.0946 0.5571 -0.03458
2007 4 18 54208 0.0979 0.5566 -0.03598
2007 4 19 54209 0.1013 0.5561 -0.03704
2007 4 20 54210 0.1046 0.5556 -0.03776
2007 4 21 54211 0.1079 0.5550 -0.03824
2007 4 22 54212 0.1112 0.5544 -0.03860
2007 4 23 54213 0.1146 0.5537 -0.03899
2007 4 24 54214 0.1179 0.5529 -0.03947
2007 4 25 54215 0.1212 0.5521 -0.04006
2007 4 26 54216 0.1245 0.5513 -0.04082
2007 4 27 54217 0.1277 0.5504 -0.04169
2007 4 28 54218 0.1310 0.5495 -0.04264
2007 4 29 54219 0.1343 0.5485 -0.04359
2007 4 30 54220 0.1375 0.5475 -0.04442
2007 5 1 54221 0.1407 0.5464 -0.04514
2007 5 2 54222 0.1439 0.5453 -0.04566
2007 5 3 54223 0.1471 0.5441 -0.04591
2007 5 4 54224 0.1503 0.5429 -0.04590
2007 5 5 54225 0.1535 0.5416 -0.04572
2007 5 6 54226 0.1567 0.5403 -0.04544
2007 5 7 54227 0.1598 0.5389 -0.04512
2007 5 8 54228 0.1629 0.5375 -0.04490
2007 5 9 54229 0.1660 0.5360 -0.04483
2007 5 10 54230 0.1691 0.5345 -0.04507
2007 5 11 54231 0.1722 0.5330 -0.04570
2007 5 12 54232 0.1752 0.5314 -0.04657
2007 5 13 54233 0.1783 0.5297 -0.04759
2007 5 14 54234 0.1813 0.5280 -0.04862
2007 5 15 54235 0.1843 0.5263 -0.04949
2007 5 16 54236 0.1872 0.5245 -0.05011
2007 5 17 54237 0.1902 0.5226 -0.05043
2007 5 18 54238 0.1931 0.5208 -0.05046
2007 5 19 54239 0.1960 0.5188 -0.05032
2007 5 20 54240 0.1989 0.5169 -0.05014
2007 5 21 54241 0.2017 0.5149 -0.05007
2007 5 22 54242 0.2045 0.5128 -0.05017
2007 5 23 54243 0.2073 0.5107 -0.05047
2007 5 24 54244 0.2101 0.5086 -0.05090
2007 5 25 54245 0.2128 0.5064 -0.05136
2007 5 26 54246 0.2155 0.5042 -0.05175
2007 5 27 54247 0.2182 0.5019 -0.05216
2007 5 28 54248 0.2208 0.4996 -0.05246
2007 5 29 54249 0.2235 0.4972 -0.05259
2007 5 30 54250 0.2260 0.4948 -0.05255
2007 5 31 54251 0.2286 0.4924 -0.05233
2007 6 1 54252 0.2311 0.4899 -0.05192
2007 6 2 54253 0.2336 0.4874 -0.05142
2007 6 3 54254 0.2361 0.4848 -0.05084
2007 6 4 54255 0.2385 0.4822 -0.05029
2007 6 5 54256 0.2409 0.4796 -0.04974
2007 6 6 54257 0.2432 0.4769 -0.04939
2007 6 7 54258 0.2456 0.4742 -0.04927
2007 6 8 54259 0.2478 0.4715 -0.04941
2007 6 9 54260 0.2501 0.4687 -0.04969
2007 6 10 54261 0.2523 0.4659 -0.05011
2007 6 11 54262 0.2545 0.4630 -0.05043
2007 6 12 54263 0.2566 0.4601 -0.05052
2007 6 13 54264 0.2587 0.4572 -0.05032
2007 6 14 54265 0.2607 0.4542 -0.04981
2007 6 15 54266 0.2627 0.4512 -0.04905
2007 6 16 54267 0.2647 0.4482 -0.04813
2007 6 17 54268 0.2666 0.4451 -0.04725
2007 6 18 54269 0.2685 0.4421 -0.04648
2007 6 19 54270 0.2704 0.4389 -0.04593
2007 6 20 54271 0.2722 0.4358 -0.04561
2007 6 21 54272 0.2739 0.4326 -0.04541
2007 6 22 54273 0.2756 0.4294 -0.04527
2007 6 23 54274 0.2773 0.4261 -0.04510
2007 6 24 54275 0.2789 0.4228 -0.04481
2007 6 25 54276 0.2805 0.4195 -0.04436
2007 6 26 54277 0.2820 0.4162 -0.04368
2007 6 27 54278 0.2835 0.4129 -0.04274
2007 6 28 54279 0.2850 0.4095 -0.04158
2007 6 29 54280 0.2864 0.4061 -0.04029
2007 6 30 54281 0.2877 0.4026 -0.03895
2007 7 1 54282 0.2890 0.3992 -0.03760
2007 7 2 54283 0.2902 0.3957 -0.03640
2007 7 3 54284 0.2914 0.3922 -0.03546
2007 7 4 54285 0.2925 0.3887 -0.03483
2007 7 5 54286 0.2936 0.3851 -0.03447
2007 7 6 54287 0.2947 0.3816 -0.03432
2007 7 7 54288 0.2956 0.3780 -0.03424
2007 7 8 54289 0.2966 0.3744 -0.03400
2007 7 9 54290 0.2974 0.3708 -0.03352
2007 7 10 54291 0.2983 0.3671 -0.03280
2007 7 11 54292 0.2990 0.3635 -0.03184
2007 7 12 54293 0.2997 0.3598 -0.03068
2007 7 13 54294 0.3004 0.3561 -0.02943
2007 7 14 54295 0.3010 0.3524 -0.02816
2007 7 15 54296 0.3015 0.3487 -0.02705
2007 7 16 54297 0.3020 0.3450 -0.02612
2007 7 17 54298 0.3025 0.3413 -0.02539
2007 7 18 54299 0.3028 0.3375 -0.02487
2007 7 19 54300 0.3031 0.3338 -0.02446
2007 7 20 54301 0.3034 0.3300 -0.02411
2007 7 21 54302 0.3036 0.3262 -0.02374
2007 7 22 54303 0.3037 0.3225 -0.02332
2007 7 23 54304 0.3038 0.3187 -0.02278
2007 7 24 54305 0.3038 0.3149 -0.02210
2007 7 25 54306 0.3038 0.3111 -0.02127
2007 7 26 54307 0.3037 0.3073 -0.02029
2007 7 27 54308 0.3035 0.3035 -0.01924
2007 7 28 54309 0.3033 0.2997 -0.01818
2007 7 29 54310 0.3030 0.2959 -0.01719
2007 7 30 54311 0.3027 0.2921 -0.01643
2007 7 31 54312 0.3022 0.2883 -0.01597
2007 8 1 54313 0.3018 0.2845 -0.01575
2007 8 2 54314 0.3012 0.2807 -0.01576
2007 8 3 54315 0.3006 0.2769 -0.01593
2007 8 4 54316 0.3000 0.2731 -0.01608
2007 8 5 54317 0.2992 0.2694 -0.01606
2007 8 6 54318 0.2984 0.2656 -0.01573
2007 8 7 54319 0.2976 0.2618 -0.01503
2007 8 8 54320 0.2966 0.2581 -0.01403
2007 8 9 54321 0.2957 0.2543 -0.01287
2007 8 10 54322 0.2946 0.2506 -0.01174
2007 8 11 54323 0.2935 0.2469 -0.01064
2007 8 12 54324 0.2923 0.2432 -0.00964
2007 8 13 54325 0.2911 0.2395 -0.00880
2007 8 14 54326 0.2898 0.2358 -0.00814
2007 8 15 54327 0.2884 0.2321 -0.00763
2007 8 16 54328 0.2869 0.2285 -0.00726
2007 8 17 54329 0.2854 0.2249 -0.00695
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)
53945 -63.35 .23 -5.08 .34
53946 -63.59 .19 -5.14 .34
53947 -63.74 .19 -5.21 .34
53948 -63.92 .13 -5.28 .34
53949 -64.33 .17 -5.50 .34
53950 -64.92 .17 -5.87 .34
53951 -65.33 .17 -6.19 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53945 -0.043 0.091 -0.246 0.340
53946 -0.063 0.076 -0.249 0.340
53947 -0.082 0.076 -0.246 0.340
53948 -0.096 0.052 -0.233 0.340
53949 -0.109 0.068 -0.252 0.340
53950 -0.111 0.068 -0.282 0.340
53951 -0.092 0.068 -0.292 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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