**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
10 August 2006 Vol. XIX No. 032
______________________________________________________________________
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 4 53951 .10944 .00003 .26868 .00004 .180528 .000019
6 8 5 53952 .10886 .00003 .26752 .00004 .180561 .000017
6 8 6 53953 .10856 .00003 .26618 .00004 .180732 .000019
6 8 7 53954 .10843 .00003 .26488 .00004 .180948 .000020
6 8 8 53955 .10847 .00002 .26384 .00004 .181024 .000020
6 8 9 53956 .10844 .00002 .26313 .00004 .180855 .000018
6 8 10 53957 .10804 .00002 .26251 .00004 .180387 .000017
_______________________________________________________________________
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 = .0536 + .1652 cos A + .0681 sin A - .1062 cos C - .1663 sin C
y = .3538 + .0676 cos A - .1457 sin A - .1663 cos C + .1062 sin C
UT1-UTC = .1299 - .00058 (MJD - 53962) - (UT2-UT1)
where A = 2*pi*(MJD-53957)/365.25 and C = 2*pi*(MJD-53957)/435.
TAI-UTC(MJD 53958) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53957)**0.80 S t = 0.00025 (MJD-53957)**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 11 53958 0.1075 0.2617 0.17958
2006 8 12 53959 0.1068 0.2609 0.17853
2006 8 13 53960 0.1060 0.2600 0.17744
2006 8 14 53961 0.1051 0.2591 0.17647
2006 8 15 53962 0.1041 0.2582 0.17576
2006 8 16 53963 0.1031 0.2572 0.17538
2006 8 17 53964 0.1020 0.2563 0.17527
2006 8 18 53965 0.1008 0.2554 0.17538
2006 8 19 53966 0.0996 0.2544 0.17557
2006 8 20 53967 0.0984 0.2535 0.17571
2006 8 21 53968 0.0971 0.2526 0.17571
2006 8 22 53969 0.0957 0.2517 0.17554
2006 8 23 53970 0.0943 0.2508 0.17518
2006 8 24 53971 0.0929 0.2500 0.17465
2006 8 25 53972 0.0915 0.2491 0.17397
2006 8 26 53973 0.0900 0.2483 0.17318
2006 8 27 53974 0.0885 0.2475 0.17235
2006 8 28 53975 0.0870 0.2467 0.17153
2006 8 29 53976 0.0854 0.2459 0.17076
2006 8 30 53977 0.0838 0.2452 0.17011
2006 8 31 53978 0.0822 0.2445 0.16960
2006 9 1 53979 0.0805 0.2438 0.16924
2006 9 2 53980 0.0789 0.2431 0.16897
2006 9 3 53981 0.0772 0.2424 0.16871
2006 9 4 53982 0.0755 0.2418 0.16832
2006 9 5 53983 0.0737 0.2412 0.16766
2006 9 6 53984 0.0720 0.2406 0.16665
2006 9 7 53985 0.0702 0.2401 0.16525
2006 9 8 53986 0.0684 0.2396 0.16354
2006 9 9 53987 0.0666 0.2391 0.16168
2006 9 10 53988 0.0647 0.2386 0.15988
2006 9 11 53989 0.0629 0.2381 0.15831
2006 9 12 53990 0.0610 0.2377 0.15709
2006 9 13 53991 0.0591 0.2373 0.15622
2006 9 14 53992 0.0572 0.2369 0.15562
2006 9 15 53993 0.0552 0.2366 0.15518
2006 9 16 53994 0.0533 0.2363 0.15479
2006 9 17 53995 0.0513 0.2360 0.15433
2006 9 18 53996 0.0493 0.2358 0.15374
2006 9 19 53997 0.0473 0.2355 0.15298
2006 9 20 53998 0.0452 0.2353 0.15205
2006 9 21 53999 0.0432 0.2351 0.15096
2006 9 22 54000 0.0411 0.2350 0.14976
2006 9 23 54001 0.0390 0.2349 0.14851
2006 9 24 54002 0.0369 0.2348 0.14729
2006 9 25 54003 0.0348 0.2348 0.14615
2006 9 26 54004 0.0327 0.2348 0.14514
2006 9 27 54005 0.0305 0.2348 0.14428
2006 9 28 54006 0.0284 0.2348 0.14359
2006 9 29 54007 0.0262 0.2349 0.14300
2006 9 30 54008 0.0240 0.2350 0.14246
2006 10 1 54009 0.0218 0.2352 0.14186
2006 10 2 54010 0.0196 0.2354 0.14109
2006 10 3 54011 0.0173 0.2356 0.14003
2006 10 4 54012 0.0151 0.2358 0.13861
2006 10 5 54013 0.0128 0.2361 0.13686
2006 10 6 54014 0.0106 0.2364 0.13487
2006 10 7 54015 0.0083 0.2368 0.13283
2006 10 8 54016 0.0060 0.2372 0.13093
2006 10 9 54017 0.0037 0.2376 0.12932
2006 10 10 54018 0.0014 0.2380 0.12806
2006 10 11 54019 -0.0009 0.2385 0.12712
2006 10 12 54020 -0.0033 0.2391 0.12639
2006 10 13 54021 -0.0056 0.2396 0.12574
2006 10 14 54022 -0.0079 0.2402 0.12504
2006 10 15 54023 -0.0102 0.2408 0.12424
2006 10 16 54024 -0.0125 0.2415 0.12328
2006 10 17 54025 -0.0149 0.2422 0.12216
2006 10 18 54026 -0.0172 0.2429 0.12089
2006 10 19 54027 -0.0195 0.2437 0.11952
2006 10 20 54028 -0.0219 0.2445 0.11810
2006 10 21 54029 -0.0242 0.2454 0.11670
2006 10 22 54030 -0.0265 0.2463 0.11539
2006 10 23 54031 -0.0288 0.2472 0.11422
2006 10 24 54032 -0.0312 0.2481 0.11322
2006 10 25 54033 -0.0335 0.2491 0.11240
2006 10 26 54034 -0.0358 0.2501 0.11172
2006 10 27 54035 -0.0381 0.2512 0.11114
2006 10 28 54036 -0.0404 0.2523 0.11057
2006 10 29 54037 -0.0427 0.2534 0.10989
2006 10 30 54038 -0.0450 0.2546 0.10901
2006 10 31 54039 -0.0473 0.2558 0.10785
2006 11 1 54040 -0.0495 0.2571 0.10638
2006 11 2 54041 -0.0518 0.2583 0.10467
2006 11 3 54042 -0.0540 0.2596 0.10284
2006 11 4 54043 -0.0563 0.2610 0.10106
2006 11 5 54044 -0.0585 0.2624 0.09950
2006 11 6 54045 -0.0607 0.2638 0.09825
2006 11 7 54046 -0.0629 0.2652 0.09734
2006 11 8 54047 -0.0650 0.2667 0.09669
2006 11 9 54048 -0.0672 0.2682 0.09616
2006 11 10 54049 -0.0693 0.2698 0.09565
2006 11 11 54050 -0.0714 0.2714 0.09503
2006 11 12 54051 -0.0735 0.2730 0.09427
2006 11 13 54052 -0.0756 0.2747 0.09335
2006 11 14 54053 -0.0777 0.2764 0.09228
2006 11 15 54054 -0.0797 0.2781 0.09109
2006 11 16 54055 -0.0817 0.2798 0.08985
2006 11 17 54056 -0.0837 0.2816 0.08862
2006 11 18 54057 -0.0856 0.2834 0.08745
2006 11 19 54058 -0.0876 0.2853 0.08642
2006 11 20 54059 -0.0895 0.2872 0.08555
2006 11 21 54060 -0.0913 0.2891 0.08487
2006 11 22 54061 -0.0932 0.2910 0.08435
2006 11 23 54062 -0.0950 0.2930 0.08394
2006 11 24 54063 -0.0968 0.2950 0.08344
2006 11 25 54064 -0.0985 0.2970 0.08287
2006 11 26 54065 -0.1002 0.2990 0.08211
2006 11 27 54066 -0.1019 0.3011 0.08111
2006 11 28 54067 -0.1036 0.3032 0.07983
2006 11 29 54068 -0.1052 0.3054 0.07831
2006 11 30 54069 -0.1068 0.3075 0.07665
2006 12 1 54070 -0.1083 0.3097 0.07500
2006 12 2 54071 -0.1098 0.3119 0.07350
2006 12 3 54072 -0.1113 0.3142 0.07228
2006 12 4 54073 -0.1127 0.3164 0.07137
2006 12 5 54074 -0.1141 0.3187 0.07074
2006 12 6 54075 -0.1155 0.3210 0.07029
2006 12 7 54076 -0.1168 0.3234 0.06990
2006 12 8 54077 -0.1181 0.3257 0.06944
2006 12 9 54078 -0.1193 0.3281 0.06885
2006 12 10 54079 -0.1205 0.3305 0.06810
2006 12 11 54080 -0.1216 0.3329 0.06719
2006 12 12 54081 -0.1227 0.3353 0.06617
2006 12 13 54082 -0.1238 0.3378 0.06508
2006 12 14 54083 -0.1248 0.3403 0.06399
2006 12 15 54084 -0.1258 0.3427 0.06297
2006 12 16 54085 -0.1267 0.3453 0.06206
2006 12 17 54086 -0.1276 0.3478 0.06132
2006 12 18 54087 -0.1284 0.3503 0.06076
2006 12 19 54088 -0.1292 0.3529 0.06037
2006 12 20 54089 -0.1299 0.3554 0.06012
2006 12 21 54090 -0.1306 0.3580 0.05992
2006 12 22 54091 -0.1312 0.3606 0.05967
2006 12 23 54092 -0.1318 0.3632 0.05927
2006 12 24 54093 -0.1323 0.3658 0.05861
2006 12 25 54094 -0.1328 0.3684 0.05769
2006 12 26 54095 -0.1332 0.3711 0.05652
2006 12 27 54096 -0.1336 0.3737 0.05521
2006 12 28 54097 -0.1339 0.3764 0.05389
2006 12 29 54098 -0.1342 0.3790 0.05270
2006 12 30 54099 -0.1344 0.3817 0.05175
2006 12 31 54100 -0.1346 0.3844 0.05109
2007 1 1 54101 -0.1347 0.3870 0.05070
2007 1 2 54102 -0.1348 0.3897 0.05051
2007 1 3 54103 -0.1348 0.3924 0.05040
2007 1 4 54104 -0.1348 0.3951 0.05025
2007 1 5 54105 -0.1347 0.3978 0.04997
2007 1 6 54106 -0.1346 0.4005 0.04953
2007 1 7 54107 -0.1344 0.4032 0.04892
2007 1 8 54108 -0.1341 0.4059 0.04816
2007 1 9 54109 -0.1338 0.4086 0.04732
2007 1 10 54110 -0.1335 0.4112 0.04646
2007 1 11 54111 -0.1331 0.4139 0.04565
2007 1 12 54112 -0.1326 0.4166 0.04493
2007 1 13 54113 -0.1321 0.4193 0.04436
2007 1 14 54114 -0.1315 0.4220 0.04396
2007 1 15 54115 -0.1309 0.4246 0.04373
2007 1 16 54116 -0.1302 0.4273 0.04364
2007 1 17 54117 -0.1295 0.4299 0.04362
2007 1 18 54118 -0.1287 0.4326 0.04357
2007 1 19 54119 -0.1279 0.4352 0.04337
2007 1 20 54120 -0.1270 0.4379 0.04292
2007 1 21 54121 -0.1261 0.4405 0.04216
2007 1 22 54122 -0.1251 0.4431 0.04112
2007 1 23 54123 -0.1240 0.4457 0.03988
2007 1 24 54124 -0.1229 0.4482 0.03860
2007 1 25 54125 -0.1218 0.4508 0.03743
2007 1 26 54126 -0.1206 0.4534 0.03648
2007 1 27 54127 -0.1193 0.4559 0.03583
2007 1 28 54128 -0.1181 0.4584 0.03544
2007 1 29 54129 -0.1167 0.4609 0.03524
2007 1 30 54130 -0.1153 0.4634 0.03514
2007 1 31 54131 -0.1139 0.4659 0.03500
2007 2 1 54132 -0.1124 0.4684 0.03474
2007 2 2 54133 -0.1108 0.4708 0.03430
2007 2 3 54134 -0.1092 0.4732 0.03365
2007 2 4 54135 -0.1076 0.4756 0.03282
2007 2 5 54136 -0.1059 0.4780 0.03186
2007 2 6 54137 -0.1042 0.4803 0.03082
2007 2 7 54138 -0.1024 0.4826 0.02979
2007 2 8 54139 -0.1005 0.4849 0.02881
2007 2 9 54140 -0.0987 0.4872 0.02796
2007 2 10 54141 -0.0968 0.4895 0.02725
2007 2 11 54142 -0.0948 0.4917 0.02670
2007 2 12 54143 -0.0928 0.4939 0.02630
2007 2 13 54144 -0.0907 0.4961 0.02600
2007 2 14 54145 -0.0886 0.4982 0.02573
2007 2 15 54146 -0.0865 0.5003 0.02536
2007 2 16 54147 -0.0843 0.5024 0.02478
2007 2 17 54148 -0.0821 0.5045 0.02388
2007 2 18 54149 -0.0798 0.5066 0.02264
2007 2 19 54150 -0.0775 0.5086 0.02113
2007 2 20 54151 -0.0751 0.5106 0.01947
2007 2 21 54152 -0.0727 0.5125 0.01786
2007 2 22 54153 -0.0703 0.5145 0.01646
2007 2 23 54154 -0.0678 0.5164 0.01535
2007 2 24 54155 -0.0653 0.5182 0.01456
2007 2 25 54156 -0.0627 0.5200 0.01399
2007 2 26 54157 -0.0601 0.5218 0.01355
2007 2 27 54158 -0.0575 0.5236 0.01311
2007 2 28 54159 -0.0549 0.5253 0.01258
2007 3 1 54160 -0.0522 0.5270 0.01188
2007 3 2 54161 -0.0495 0.5286 0.01101
2007 3 3 54162 -0.0467 0.5303 0.00997
2007 3 4 54163 -0.0439 0.5318 0.00880
2007 3 5 54164 -0.0411 0.5334 0.00757
2007 3 6 54165 -0.0383 0.5349 0.00637
2007 3 7 54166 -0.0354 0.5363 0.00528
2007 3 8 54167 -0.0325 0.5377 0.00437
2007 3 9 54168 -0.0296 0.5391 0.00370
2007 3 10 54169 -0.0266 0.5404 0.00327
2007 3 11 54170 -0.0237 0.5417 0.00303
2007 3 12 54171 -0.0207 0.5430 0.00294
2007 3 13 54172 -0.0177 0.5442 0.00291
2007 3 14 54173 -0.0146 0.5454 0.00283
2007 3 15 54174 -0.0115 0.5465 0.00254
2007 3 16 54175 -0.0084 0.5476 0.00195
2007 3 17 54176 -0.0053 0.5486 0.00102
2007 3 18 54177 -0.0022 0.5496 -0.00024
2007 3 19 54178 0.0009 0.5506 -0.00172
2007 3 20 54179 0.0041 0.5515 -0.00324
2007 3 21 54180 0.0073 0.5524 -0.00464
2007 3 22 54181 0.0105 0.5532 -0.00572
2007 3 23 54182 0.0137 0.5539 -0.00645
2007 3 24 54183 0.0170 0.5547 -0.00686
2007 3 25 54184 0.0202 0.5554 -0.00705
2007 3 26 54185 0.0235 0.5560 -0.00715
2007 3 27 54186 0.0267 0.5566 -0.00735
2007 3 28 54187 0.0300 0.5571 -0.00775
2007 3 29 54188 0.0333 0.5576 -0.00837
2007 3 30 54189 0.0366 0.5581 -0.00921
2007 3 31 54190 0.0400 0.5585 -0.01018
2007 4 1 54191 0.0433 0.5588 -0.01124
2007 4 2 54192 0.0466 0.5592 -0.01242
2007 4 3 54193 0.0500 0.5594 -0.01355
2007 4 4 54194 0.0533 0.5596 -0.01460
2007 4 5 54195 0.0567 0.5598 -0.01551
2007 4 6 54196 0.0600 0.5599 -0.01623
2007 4 7 54197 0.0634 0.5600 -0.01682
2007 4 8 54198 0.0668 0.5600 -0.01727
2007 4 9 54199 0.0701 0.5600 -0.01765
2007 4 10 54200 0.0735 0.5599 -0.01803
2007 4 11 54201 0.0769 0.5598 -0.01846
2007 4 12 54202 0.0803 0.5596 -0.01912
2007 4 13 54203 0.0836 0.5594 -0.02007
2007 4 14 54204 0.0870 0.5591 -0.02134
2007 4 15 54205 0.0904 0.5588 -0.02285
2007 4 16 54206 0.0937 0.5584 -0.02441
2007 4 17 54207 0.0971 0.5580 -0.02591
2007 4 18 54208 0.1005 0.5575 -0.02714
2007 4 19 54209 0.1038 0.5570 -0.02794
2007 4 20 54210 0.1072 0.5564 -0.02831
2007 4 21 54211 0.1105 0.5558 -0.02842
2007 4 22 54212 0.1139 0.5551 -0.02840
2007 4 23 54213 0.1172 0.5544 -0.02838
2007 4 24 54214 0.1205 0.5537 -0.02852
2007 4 25 54215 0.1238 0.5528 -0.02879
2007 4 26 54216 0.1271 0.5520 -0.02930
2007 4 27 54217 0.1304 0.5511 -0.03005
2007 4 28 54218 0.1337 0.5501 -0.03086
2007 4 29 54219 0.1370 0.5491 -0.03168
2007 4 30 54220 0.1402 0.5480 -0.03244
2007 5 1 54221 0.1435 0.5469 -0.03309
2007 5 2 54222 0.1467 0.5458 -0.03362
2007 5 3 54223 0.1499 0.5445 -0.03400
2007 5 4 54224 0.1531 0.5433 -0.03423
2007 5 5 54225 0.1563 0.5420 -0.03430
2007 5 6 54226 0.1595 0.5406 -0.03428
2007 5 7 54227 0.1626 0.5392 -0.03426
2007 5 8 54228 0.1658 0.5378 -0.03434
2007 5 9 54229 0.1689 0.5363 -0.03461
2007 5 10 54230 0.1720 0.5347 -0.03511
2007 5 11 54231 0.1751 0.5332 -0.03585
2007 5 12 54232 0.1781 0.5315 -0.03675
2007 5 13 54233 0.1811 0.5298 -0.03788
2007 5 14 54234 0.1842 0.5281 -0.03903
2007 5 15 54235 0.1871 0.5263 -0.04000
2007 5 16 54236 0.1901 0.5245 -0.04070
2007 5 17 54237 0.1931 0.5226 -0.04106
2007 5 18 54238 0.1960 0.5207 -0.04112
2007 5 19 54239 0.1989 0.5187 -0.04099
2007 5 20 54240 0.2017 0.5167 -0.04081
2007 5 21 54241 0.2046 0.5147 -0.04068
2007 5 22 54242 0.2074 0.5126 -0.04056
2007 5 23 54243 0.2102 0.5104 -0.04060
2007 5 24 54244 0.2129 0.5083 -0.04075
2007 5 25 54245 0.2156 0.5060 -0.04100
2007 5 26 54246 0.2183 0.5038 -0.04125
2007 5 27 54247 0.2210 0.5014 -0.04155
2007 5 28 54248 0.2236 0.4991 -0.04174
2007 5 29 54249 0.2263 0.4967 -0.04177
2007 5 30 54250 0.2288 0.4942 -0.04163
2007 5 31 54251 0.2314 0.4918 -0.04129
2007 6 1 54252 0.2339 0.4892 -0.04075
2007 6 2 54253 0.2363 0.4867 -0.04002
2007 6 3 54254 0.2388 0.4841 -0.03924
2007 6 4 54255 0.2412 0.4814 -0.03848
2007 6 5 54256 0.2436 0.4787 -0.03789
2007 6 6 54257 0.2459 0.4760 -0.03760
2007 6 7 54258 0.2482 0.4733 -0.03755
2007 6 8 54259 0.2504 0.4705 -0.03777
2007 6 9 54260 0.2527 0.4676 -0.03815
2007 6 10 54261 0.2548 0.4648 -0.03855
2007 6 11 54262 0.2570 0.4619 -0.03883
2007 6 12 54263 0.2591 0.4589 -0.03884
2007 6 13 54264 0.2612 0.4559 -0.03846
2007 6 14 54265 0.2632 0.4529 -0.03774
2007 6 15 54266 0.2652 0.4499 -0.03679
2007 6 16 54267 0.2671 0.4468 -0.03576
2007 6 17 54268 0.2690 0.4437 -0.03473
2007 6 18 54269 0.2708 0.4405 -0.03386
2007 6 19 54270 0.2726 0.4374 -0.03321
2007 6 20 54271 0.2744 0.4342 -0.03277
2007 6 21 54272 0.2761 0.4309 -0.03247
2007 6 22 54273 0.2778 0.4276 -0.03223
2007 6 23 54274 0.2794 0.4244 -0.03198
2007 6 24 54275 0.2810 0.4210 -0.03153
2007 6 25 54276 0.2825 0.4177 -0.03091
2007 6 26 54277 0.2840 0.4143 -0.03013
2007 6 27 54278 0.2855 0.4109 -0.02920
2007 6 28 54279 0.2868 0.4075 -0.02814
2007 6 29 54280 0.2882 0.4040 -0.02695
2007 6 30 54281 0.2895 0.4005 -0.02568
2007 7 1 54282 0.2907 0.3970 -0.02448
2007 7 2 54283 0.2919 0.3935 -0.02339
2007 7 3 54284 0.2930 0.3899 -0.02252
2007 7 4 54285 0.2941 0.3863 -0.02197
2007 7 5 54286 0.2952 0.3828 -0.02169
2007 7 6 54287 0.2961 0.3791 -0.02164
2007 7 7 54288 0.2971 0.3755 -0.02171
2007 7 8 54289 0.2979 0.3719 -0.02178
2007 7 9 54290 0.2987 0.3682 -0.02169
2007 7 10 54291 0.2995 0.3645 -0.02136
2007 7 11 54292 0.3002 0.3608 -0.02077
2007 7 12 54293 0.3009 0.3571 -0.01994
2007 7 13 54294 0.3015 0.3534 -0.01899
2007 7 14 54295 0.3020 0.3496 -0.01802
2007 7 15 54296 0.3025 0.3459 -0.01714
2007 7 16 54297 0.3029 0.3421 -0.01645
2007 7 17 54298 0.3033 0.3383 -0.01598
2007 7 18 54299 0.3036 0.3345 -0.01561
2007 7 19 54300 0.3038 0.3307 -0.01532
2007 7 20 54301 0.3040 0.3269 -0.01509
2007 7 21 54302 0.3041 0.3231 -0.01482
2007 7 22 54303 0.3042 0.3193 -0.01443
2007 7 23 54304 0.3042 0.3155 -0.01383
2007 7 24 54305 0.3041 0.3116 -0.01296
2007 7 25 54306 0.3040 0.3078 -0.01186
2007 7 26 54307 0.3039 0.3040 -0.01059
2007 7 27 54308 0.3036 0.3001 -0.00927
2007 7 28 54309 0.3033 0.2963 -0.00790
2007 7 29 54310 0.3030 0.2925 -0.00656
2007 7 30 54311 0.3025 0.2886 -0.00538
2007 7 31 54312 0.3020 0.2848 -0.00447
2007 8 1 54313 0.3015 0.2810 -0.00387
2007 8 2 54314 0.3009 0.2772 -0.00359
2007 8 3 54315 0.3002 0.2733 -0.00351
2007 8 4 54316 0.2995 0.2695 -0.00343
2007 8 5 54317 0.2987 0.2657 -0.00328
2007 8 6 54318 0.2978 0.2619 -0.00287
2007 8 7 54319 0.2969 0.2581 -0.00218
2007 8 8 54320 0.2959 0.2544 -0.00131
2007 8 9 54321 0.2948 0.2506 -0.00041
2007 8 10 54322 0.2937 0.2468 0.00051
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)
53938 -63.19 .37 -5.80 .34
53939 -63.18 .42 -6.07 .34
53940 -63.01 .42 -6.29 .34
53941 -62.85 .47 -6.29 .34
53942 -62.80 .41 -5.99 .34
53943 -62.88 .41 -5.53 .34
53944 -63.06 .41 -5.18 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53938 -0.058 0.147 -0.282 0.340
53939 -0.039 0.167 -0.271 0.340
53940 -0.015 0.167 -0.247 0.340
53941 0.000 0.187 -0.243 0.340
53942 0.003 0.163 -0.248 0.340
53943 -0.007 0.163 -0.245 0.340
53944 -0.016 0.163 -0.243 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
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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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