**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
22 June 2006 Vol. XIX No. 025
______________________________________________________________________
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 June 30, 2006. *
* Last positive leap second was introduced in UTC on December 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 6 16 53902 .12602 .00002 .31608 .00006 .200626 .000014
6 6 17 53903 .12619 .00002 .31523 .00006 .200155 .000013
6 6 18 53904 .12633 .00002 .31423 .00005 .199437 .000014
6 6 19 53905 .12637 .00002 .31308 .00004 .198587 .000015
6 6 20 53906 .12623 .00002 .31196 .00004 .197746 .000015
6 6 21 53907 .12596 .00001 .31089 .00004 .197031 .000013
6 6 22 53908 .12563 .00001 .30992 .00003 .196554 .000013
_______________________________________________________________________
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 = .0526 + .0573 cos A + .1567 sin A + .0197 cos C - .1902 sin C
y = .3555 + .1468 cos A - .0509 sin A - .1902 cos C - .0197 sin C
UT1-UTC = .2019 - .00050 (MJD - 53913) - (UT2-UT1)
where A = 2*pi*(MJD-53908)/365.25 and C = 2*pi*(MJD-53908)/435.
TAI-UTC(MJD 53909) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53908)**0.80 S t = 0.00025 (MJD-53908)**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 6 23 53909 0.1253 0.3090 0.19636
2006 6 24 53910 0.1250 0.3080 0.19638
2006 6 25 53911 0.1248 0.3069 0.19653
2006 6 26 53912 0.1245 0.3059 0.19669
2006 6 27 53913 0.1243 0.3048 0.19680
2006 6 28 53914 0.1240 0.3037 0.19681
2006 6 29 53915 0.1238 0.3026 0.19672
2006 6 30 53916 0.1235 0.3015 0.19653
2006 7 1 53917 0.1232 0.3004 0.19623
2006 7 2 53918 0.1229 0.2993 0.19590
2006 7 3 53919 0.1226 0.2982 0.19559
2006 7 4 53920 0.1223 0.2971 0.19535
2006 7 5 53921 0.1220 0.2960 0.19523
2006 7 6 53922 0.1216 0.2948 0.19527
2006 7 7 53923 0.1212 0.2937 0.19549
2006 7 8 53924 0.1209 0.2926 0.19587
2006 7 9 53925 0.1205 0.2915 0.19639
2006 7 10 53926 0.1200 0.2904 0.19696
2006 7 11 53927 0.1196 0.2893 0.19747
2006 7 12 53928 0.1191 0.2882 0.19779
2006 7 13 53929 0.1186 0.2871 0.19781
2006 7 14 53930 0.1181 0.2860 0.19749
2006 7 15 53931 0.1176 0.2849 0.19691
2006 7 16 53932 0.1171 0.2839 0.19619
2006 7 17 53933 0.1165 0.2828 0.19548
2006 7 18 53934 0.1160 0.2817 0.19494
2006 7 19 53935 0.1154 0.2806 0.19463
2006 7 20 53936 0.1147 0.2795 0.19458
2006 7 21 53937 0.1141 0.2785 0.19478
2006 7 22 53938 0.1135 0.2774 0.19515
2006 7 23 53939 0.1128 0.2763 0.19559
2006 7 24 53940 0.1121 0.2753 0.19600
2006 7 25 53941 0.1114 0.2742 0.19631
2006 7 26 53942 0.1107 0.2732 0.19646
2006 7 27 53943 0.1099 0.2722 0.19643
2006 7 28 53944 0.1092 0.2711 0.19625
2006 7 29 53945 0.1084 0.2701 0.19595
2006 7 30 53946 0.1076 0.2691 0.19560
2006 7 31 53947 0.1068 0.2681 0.19527
2006 8 1 53948 0.1059 0.2671 0.19501
2006 8 2 53949 0.1050 0.2661 0.19489
2006 8 3 53950 0.1042 0.2651 0.19493
2006 8 4 53951 0.1033 0.2641 0.19517
2006 8 5 53952 0.1023 0.2632 0.19557
2006 8 6 53953 0.1014 0.2622 0.19608
2006 8 7 53954 0.1004 0.2613 0.19659
2006 8 8 53955 0.0994 0.2603 0.19696
2006 8 9 53956 0.0984 0.2594 0.19707
2006 8 10 53957 0.0974 0.2585 0.19684
2006 8 11 53958 0.0963 0.2576 0.19628
2006 8 12 53959 0.0952 0.2567 0.19551
2006 8 13 53960 0.0941 0.2559 0.19470
2006 8 14 53961 0.0930 0.2550 0.19404
2006 8 15 53962 0.0919 0.2542 0.19366
2006 8 16 53963 0.0907 0.2533 0.19359
2006 8 17 53964 0.0895 0.2525 0.19383
2006 8 18 53965 0.0883 0.2517 0.19427
2006 8 19 53966 0.0871 0.2509 0.19481
2006 8 20 53967 0.0859 0.2502 0.19535
2006 8 21 53968 0.0846 0.2494 0.19580
2006 8 22 53969 0.0833 0.2487 0.19608
2006 8 23 53970 0.0820 0.2480 0.19618
2006 8 24 53971 0.0806 0.2473 0.19609
2006 8 25 53972 0.0793 0.2466 0.19584
2006 8 26 53973 0.0779 0.2459 0.19549
2006 8 27 53974 0.0765 0.2453 0.19511
2006 8 28 53975 0.0751 0.2447 0.19476
2006 8 29 53976 0.0736 0.2441 0.19451
2006 8 30 53977 0.0722 0.2435 0.19439
2006 8 31 53978 0.0707 0.2429 0.19442
2006 9 1 53979 0.0691 0.2424 0.19460
2006 9 2 53980 0.0676 0.2419 0.19489
2006 9 3 53981 0.0661 0.2414 0.19519
2006 9 4 53982 0.0645 0.2409 0.19539
2006 9 5 53983 0.0629 0.2404 0.19536
2006 9 6 53984 0.0613 0.2400 0.19499
2006 9 7 53985 0.0596 0.2396 0.19424
2006 9 8 53986 0.0580 0.2392 0.19318
2006 9 9 53987 0.0563 0.2389 0.19197
2006 9 10 53988 0.0546 0.2385 0.19081
2006 9 11 53989 0.0529 0.2382 0.18987
2006 9 12 53990 0.0511 0.2380 0.18925
2006 9 13 53991 0.0494 0.2377 0.18895
2006 9 14 53992 0.0476 0.2375 0.18891
2006 9 15 53993 0.0458 0.2373 0.18900
2006 9 16 53994 0.0440 0.2371 0.18911
2006 9 17 53995 0.0421 0.2370 0.18914
2006 9 18 53996 0.0403 0.2368 0.18902
2006 9 19 53997 0.0384 0.2368 0.18872
2006 9 20 53998 0.0365 0.2367 0.18824
2006 9 21 53999 0.0346 0.2367 0.18760
2006 9 22 54000 0.0327 0.2367 0.18686
2006 9 23 54001 0.0308 0.2367 0.18607
2006 9 24 54002 0.0288 0.2367 0.18531
2006 9 25 54003 0.0268 0.2368 0.18464
2006 9 26 54004 0.0249 0.2369 0.18409
2006 9 27 54005 0.0229 0.2371 0.18371
2006 9 28 54006 0.0209 0.2373 0.18348
2006 9 29 54007 0.0188 0.2375 0.18337
2006 9 30 54008 0.0168 0.2377 0.18331
2006 10 1 54009 0.0147 0.2380 0.18320
2006 10 2 54010 0.0127 0.2383 0.18293
2006 10 3 54011 0.0106 0.2386 0.18237
2006 10 4 54012 0.0085 0.2390 0.18147
2006 10 5 54013 0.0064 0.2394 0.18023
2006 10 6 54014 0.0043 0.2398 0.17866
2006 10 7 54015 0.0022 0.2403 0.17704
2006 10 8 54016 0.0001 0.2408 0.17556
2006 10 9 54017 -0.0021 0.2413 0.17438
2006 10 10 54018 -0.0042 0.2419 0.17354
2006 10 11 54019 -0.0063 0.2425 0.17301
2006 10 12 54020 -0.0085 0.2431 0.17267
2006 10 13 54021 -0.0106 0.2438 0.17241
2006 10 14 54022 -0.0128 0.2445 0.17209
2006 10 15 54023 -0.0150 0.2452 0.17164
2006 10 16 54024 -0.0171 0.2460 0.17103
2006 10 17 54025 -0.0193 0.2468 0.17024
2006 10 18 54026 -0.0215 0.2476 0.16929
2006 10 19 54027 -0.0236 0.2485 0.16823
2006 10 20 54028 -0.0258 0.2494 0.16711
2006 10 21 54029 -0.0280 0.2503 0.16600
2006 10 22 54030 -0.0302 0.2513 0.16497
2006 10 23 54031 -0.0323 0.2523 0.16408
2006 10 24 54032 -0.0345 0.2533 0.16336
2006 10 25 54033 -0.0367 0.2544 0.16280
2006 10 26 54034 -0.0388 0.2555 0.16240
2006 10 27 54035 -0.0410 0.2567 0.16207
2006 10 28 54036 -0.0431 0.2578 0.16175
2006 10 29 54037 -0.0453 0.2590 0.16131
2006 10 30 54038 -0.0474 0.2603 0.16066
2006 10 31 54039 -0.0495 0.2615 0.15971
2006 11 1 54040 -0.0516 0.2629 0.15845
2006 11 2 54041 -0.0537 0.2642 0.15693
2006 11 3 54042 -0.0558 0.2656 0.15529
2006 11 4 54043 -0.0579 0.2670 0.15370
2006 11 5 54044 -0.0600 0.2684 0.15232
2006 11 6 54045 -0.0620 0.2699 0.15127
2006 11 7 54046 -0.0641 0.2714 0.15056
2006 11 8 54047 -0.0661 0.2729 0.15010
2006 11 9 54048 -0.0681 0.2745 0.14978
2006 11 10 54049 -0.0701 0.2761 0.14946
2006 11 11 54050 -0.0720 0.2777 0.14905
2006 11 12 54051 -0.0740 0.2794 0.14849
2006 11 13 54052 -0.0759 0.2811 0.14776
2006 11 14 54053 -0.0778 0.2828 0.14689
2006 11 15 54054 -0.0797 0.2846 0.14591
2006 11 16 54055 -0.0816 0.2864 0.14487
2006 11 17 54056 -0.0835 0.2882 0.14385
2006 11 18 54057 -0.0853 0.2900 0.14290
2006 11 19 54058 -0.0871 0.2919 0.14209
2006 11 20 54059 -0.0888 0.2938 0.14145
2006 11 21 54060 -0.0906 0.2957 0.14100
2006 11 22 54061 -0.0923 0.2977 0.14071
2006 11 23 54062 -0.0940 0.2997 0.14055
2006 11 24 54063 -0.0957 0.3017 0.14041
2006 11 25 54064 -0.0973 0.3037 0.14019
2006 11 26 54065 -0.0989 0.3058 0.13980
2006 11 27 54066 -0.1004 0.3079 0.13917
2006 11 28 54067 -0.1020 0.3100 0.13825
2006 11 29 54068 -0.1035 0.3121 0.13710
2006 11 30 54069 -0.1049 0.3143 0.13581
2006 12 1 54070 -0.1064 0.3165 0.13453
2006 12 2 54071 -0.1078 0.3187 0.13340
2006 12 3 54072 -0.1091 0.3209 0.13254
2006 12 4 54073 -0.1105 0.3232 0.13200
2006 12 5 54074 -0.1118 0.3254 0.13174
2006 12 6 54075 -0.1130 0.3277 0.13165
2006 12 7 54076 -0.1142 0.3300 0.13161
2006 12 8 54077 -0.1154 0.3324 0.13151
2006 12 9 54078 -0.1165 0.3347 0.13126
2006 12 10 54079 -0.1176 0.3371 0.13085
2006 12 11 54080 -0.1186 0.3395 0.13028
2006 12 12 54081 -0.1196 0.3419 0.12958
2006 12 13 54082 -0.1206 0.3443 0.12882
2006 12 14 54083 -0.1215 0.3468 0.12804
2006 12 15 54084 -0.1224 0.3492 0.12731
2006 12 16 54085 -0.1232 0.3517 0.12669
2006 12 17 54086 -0.1240 0.3542 0.12621
2006 12 18 54087 -0.1248 0.3567 0.12589
2006 12 19 54088 -0.1254 0.3592 0.12573
2006 12 20 54089 -0.1261 0.3617 0.12567
2006 12 21 54090 -0.1267 0.3643 0.12563
2006 12 22 54091 -0.1272 0.3668 0.12551
2006 12 23 54092 -0.1277 0.3694 0.12520
2006 12 24 54093 -0.1282 0.3719 0.12462
2006 12 25 54094 -0.1286 0.3745 0.12375
2006 12 26 54095 -0.1290 0.3771 0.12264
2006 12 27 54096 -0.1293 0.3797 0.12139
2006 12 28 54097 -0.1295 0.3823 0.12017
2006 12 29 54098 -0.1297 0.3849 0.11912
2006 12 30 54099 -0.1299 0.3875 0.11836
2006 12 31 54100 -0.1299 0.3901 0.11794
2007 1 1 54101 -0.1300 0.3927 0.11783
2007 1 2 54102 -0.1299 0.3953 0.11793
2007 1 3 54103 -0.1299 0.3979 0.11813
2007 1 4 54104 -0.1297 0.4005 0.11828
2007 1 5 54105 -0.1296 0.4031 0.11828
2007 1 6 54106 -0.1293 0.4057 0.11809
2007 1 7 54107 -0.1290 0.4084 0.11770
2007 1 8 54108 -0.1287 0.4110 0.11716
2007 1 9 54109 -0.1283 0.4136 0.11654
2007 1 10 54110 -0.1279 0.4162 0.11592
2007 1 11 54111 -0.1274 0.4188 0.11537
2007 1 12 54112 -0.1268 0.4214 0.11495
2007 1 13 54113 -0.1262 0.4240 0.11472
2007 1 14 54114 -0.1256 0.4266 0.11469
2007 1 15 54115 -0.1249 0.4291 0.11487
2007 1 16 54116 -0.1241 0.4317 0.11520
2007 1 17 54117 -0.1233 0.4343 0.11559
2007 1 18 54118 -0.1225 0.4368 0.11594
2007 1 19 54119 -0.1216 0.4394 0.11609
2007 1 20 54120 -0.1206 0.4419 0.11597
2007 1 21 54121 -0.1196 0.4444 0.11551
2007 1 22 54122 -0.1185 0.4470 0.11476
2007 1 23 54123 -0.1174 0.4495 0.11381
2007 1 24 54124 -0.1162 0.4519 0.11280
2007 1 25 54125 -0.1150 0.4544 0.11186
2007 1 26 54126 -0.1137 0.4569 0.11114
2007 1 27 54127 -0.1124 0.4593 0.11069
2007 1 28 54128 -0.1110 0.4617 0.11051
2007 1 29 54129 -0.1096 0.4641 0.11051
2007 1 30 54130 -0.1081 0.4665 0.11056
2007 1 31 54131 -0.1066 0.4689 0.11056
2007 2 1 54132 -0.1050 0.4713 0.11045
2007 2 2 54133 -0.1034 0.4736 0.11021
2007 2 3 54134 -0.1018 0.4759 0.10986
2007 2 4 54135 -0.1000 0.4782 0.10928
2007 2 5 54136 -0.0983 0.4805 0.10857
2007 2 6 54137 -0.0965 0.4827 0.10783
2007 2 7 54138 -0.0946 0.4849 0.10708
2007 2 8 54139 -0.0927 0.4871 0.10639
2007 2 9 54140 -0.0908 0.4893 0.10585
2007 2 10 54141 -0.0888 0.4915 0.10545
2007 2 11 54142 -0.0868 0.4936 0.10524
2007 2 12 54143 -0.0847 0.4957 0.10519
2007 2 13 54144 -0.0826 0.4978 0.10536
2007 2 14 54145 -0.0804 0.4998 0.10554
2007 2 15 54146 -0.0782 0.5018 0.10562
2007 2 16 54147 -0.0760 0.5038 0.10545
2007 2 17 54148 -0.0737 0.5058 0.10498
2007 2 18 54149 -0.0714 0.5077 0.10409
2007 2 19 54150 -0.0690 0.5096 0.10292
2007 2 20 54151 -0.0666 0.5115 0.10164
2007 2 21 54152 -0.0642 0.5133 0.10040
2007 2 22 54153 -0.0617 0.5151 0.09938
2007 2 23 54154 -0.0592 0.5169 0.09871
2007 2 24 54155 -0.0566 0.5186 0.09841
2007 2 25 54156 -0.0540 0.5203 0.09836
2007 2 26 54157 -0.0514 0.5220 0.09846
2007 2 27 54158 -0.0488 0.5236 0.09852
2007 2 28 54159 -0.0461 0.5252 0.09841
2007 3 1 54160 -0.0434 0.5267 0.09813
2007 3 2 54161 -0.0406 0.5283 0.09763
2007 3 3 54162 -0.0379 0.5297 0.09695
2007 3 4 54163 -0.0351 0.5312 0.09616
2007 3 5 54164 -0.0322 0.5326 0.09531
2007 3 6 54165 -0.0294 0.5340 0.09449
2007 3 7 54166 -0.0265 0.5353 0.09381
2007 3 8 54167 -0.0236 0.5366 0.09330
2007 3 9 54168 -0.0206 0.5379 0.09294
2007 3 10 54169 -0.0177 0.5391 0.09274
2007 3 11 54170 -0.0147 0.5402 0.09275
2007 3 12 54171 -0.0117 0.5414 0.09283
2007 3 13 54172 -0.0087 0.5425 0.09291
2007 3 14 54173 -0.0056 0.5435 0.09289
2007 3 15 54174 -0.0025 0.5445 0.09265
2007 3 16 54175 0.0006 0.5455 0.09210
2007 3 17 54176 0.0037 0.5464 0.09121
2007 3 18 54177 0.0068 0.5473 0.09008
2007 3 19 54178 0.0100 0.5481 0.08877
2007 3 20 54179 0.0131 0.5489 0.08741
2007 3 21 54180 0.0163 0.5496 0.08616
2007 3 22 54181 0.0195 0.5503 0.08518
2007 3 23 54182 0.0227 0.5510 0.08454
2007 3 24 54183 0.0259 0.5516 0.08423
2007 3 25 54184 0.0291 0.5522 0.08407
2007 3 26 54185 0.0324 0.5527 0.08398
2007 3 27 54186 0.0356 0.5532 0.08382
2007 3 28 54187 0.0389 0.5536 0.08345
2007 3 29 54188 0.0422 0.5540 0.08288
2007 3 30 54189 0.0454 0.5543 0.08210
2007 3 31 54190 0.0487 0.5546 0.08111
2007 4 1 54191 0.0520 0.5548 0.07997
2007 4 2 54192 0.0553 0.5550 0.07878
2007 4 3 54193 0.0586 0.5552 0.07760
2007 4 4 54194 0.0619 0.5553 0.07652
2007 4 5 54195 0.0652 0.5553 0.07562
2007 4 6 54196 0.0685 0.5553 0.07490
2007 4 7 54197 0.0718 0.5553 0.07438
2007 4 8 54198 0.0751 0.5552 0.07405
2007 4 9 54199 0.0784 0.5551 0.07377
2007 4 10 54200 0.0818 0.5549 0.07348
2007 4 11 54201 0.0851 0.5546 0.07311
2007 4 12 54202 0.0884 0.5543 0.07254
2007 4 13 54203 0.0917 0.5540 0.07160
2007 4 14 54204 0.0949 0.5536 0.07033
2007 4 15 54205 0.0982 0.5532 0.06878
2007 4 16 54206 0.1015 0.5527 0.06717
2007 4 17 54207 0.1048 0.5522 0.06571
2007 4 18 54208 0.1081 0.5516 0.06456
2007 4 19 54209 0.1113 0.5510 0.06379
2007 4 20 54210 0.1146 0.5503 0.06335
2007 4 21 54211 0.1178 0.5496 0.06324
2007 4 22 54212 0.1210 0.5489 0.06334
2007 4 23 54213 0.1242 0.5480 0.06349
2007 4 24 54214 0.1275 0.5472 0.06353
2007 4 25 54215 0.1306 0.5463 0.06339
2007 4 26 54216 0.1338 0.5453 0.06301
2007 4 27 54217 0.1370 0.5443 0.06240
2007 4 28 54218 0.1401 0.5432 0.06167
2007 4 29 54219 0.1433 0.5421 0.06082
2007 4 30 54220 0.1464 0.5410 0.06002
2007 5 1 54221 0.1495 0.5398 0.05933
2007 5 2 54222 0.1526 0.5385 0.05875
2007 5 3 54223 0.1556 0.5372 0.05829
2007 5 4 54224 0.1587 0.5359 0.05801
2007 5 5 54225 0.1617 0.5345 0.05793
2007 5 6 54226 0.1647 0.5331 0.05795
2007 5 7 54227 0.1677 0.5316 0.05795
2007 5 8 54228 0.1707 0.5301 0.05776
2007 5 9 54229 0.1736 0.5285 0.05744
2007 5 10 54230 0.1765 0.5269 0.05688
2007 5 11 54231 0.1794 0.5252 0.05596
2007 5 12 54232 0.1823 0.5235 0.05475
2007 5 13 54233 0.1851 0.5217 0.05333
2007 5 14 54234 0.1879 0.5199 0.05186
2007 5 15 54235 0.1907 0.5181 0.05053
2007 5 16 54236 0.1935 0.5162 0.04954
2007 5 17 54237 0.1962 0.5142 0.04894
2007 5 18 54238 0.1990 0.5123 0.04870
2007 5 19 54239 0.2016 0.5102 0.04868
2007 5 20 54240 0.2043 0.5082 0.04873
2007 5 21 54241 0.2069 0.5061 0.04865
2007 5 22 54242 0.2095 0.5039 0.04837
2007 5 23 54243 0.2121 0.5017 0.04789
2007 5 24 54244 0.2146 0.4995 0.04728
2007 5 25 54245 0.2171 0.4972 0.04661
2007 5 26 54246 0.2196 0.4949 0.04587
2007 5 27 54247 0.2220 0.4925 0.04524
2007 5 28 54248 0.2244 0.4901 0.04472
2007 5 29 54249 0.2268 0.4877 0.04439
2007 5 30 54250 0.2291 0.4852 0.04429
2007 5 31 54251 0.2314 0.4827 0.04444
2007 6 1 54252 0.2337 0.4801 0.04484
2007 6 2 54253 0.2359 0.4775 0.04542
2007 6 3 54254 0.2381 0.4749 0.04612
2007 6 4 54255 0.2403 0.4722 0.04673
2007 6 5 54256 0.2424 0.4695 0.04720
2007 6 6 54257 0.2445 0.4668 0.04747
2007 6 7 54258 0.2465 0.4640 0.04751
2007 6 8 54259 0.2485 0.4612 0.04727
2007 6 9 54260 0.2505 0.4583 0.04687
2007 6 10 54261 0.2524 0.4555 0.04641
2007 6 11 54262 0.2543 0.4525 0.04601
2007 6 12 54263 0.2561 0.4496 0.04585
2007 6 13 54264 0.2579 0.4466 0.04599
2007 6 14 54265 0.2597 0.4436 0.04646
2007 6 15 54266 0.2614 0.4406 0.04719
2007 6 16 54267 0.2631 0.4375 0.04799
2007 6 17 54268 0.2647 0.4344 0.04874
2007 6 18 54269 0.2663 0.4312 0.04940
2007 6 19 54270 0.2678 0.4281 0.04992
2007 6 20 54271 0.2693 0.4249 0.05032
2007 6 21 54272 0.2708 0.4217 0.05064
2007 6 22 54273 0.2722 0.4184 0.05087
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)
53889 -54.95 .17 -6.13 .10
53890 -55.01 .30 -6.09 .34
53891 -55.13 .32 -5.97 .11
53892 -55.43 .37 -5.77 .13
53893 -55.91 .31 -5.64 .11
53894 -56.43 .31 -5.68 .11
53895 -56.81 .31 -5.86 .11
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53889 -0.029 0.068 -0.269 0.100
53890 -0.056 0.119 -0.265 0.340
53891 -0.086 0.127 -0.266 0.110
53892 -0.108 0.147 -0.261 0.130
53893 -0.119 0.123 -0.273 0.110
53894 -0.125 0.123 -0.291 0.110
53895 -0.121 0.123 -0.304 0.110
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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