**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
16 February 2006 Vol. XIX No. 007
______________________________________________________________________
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
= +0.3 seconds beginning 01 January 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* >>> A positive leap second was introduced in UTC on <<< *
* >>> 31 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 2 10 53776 .05379 .00004 .38434 .00004 .316068 .000014
6 2 11 53777 .05506 .00004 .38446 .00003 .315599 .000013
6 2 12 53778 .05633 .00004 .38440 .00003 .314993 .000012
6 2 13 53779 .05740 .00003 .38411 .00002 .314224 .000011
6 2 14 53780 .05818 .00003 .38378 .00002 .313358 .000009
6 2 15 53781 .05907 .00002 .38359 .00002 .312410 .000008
6 2 16 53782 .06016 .00002 .38355 .00002 .311355 .000008
_______________________________________________________________________
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 = .0547 - .1593 cos A - .0669 sin A + .1632 cos C + .0898 sin C
y = .3605 - .0659 cos A + .1469 sin A + .0898 cos C - .1632 sin C
UT1-UTC = .3014 - .00040 (MJD - 53787) - (UT2-UT1)
where A = 2*pi*(MJD-53782)/365.25 and C = 2*pi*(MJD-53782)/435.
TAI-UTC(MJD 53783) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53782)**0.80 S t = 0.00025 (MJD-53782)**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 2 17 53783 0.0611 0.3836 0.31020
2006 2 18 53784 0.0620 0.3837 0.30904
2006 2 19 53785 0.0628 0.3838 0.30798
2006 2 20 53786 0.0635 0.3839 0.30709
2006 2 21 53787 0.0642 0.3840 0.30638
2006 2 22 53788 0.0648 0.3841 0.30585
2006 2 23 53789 0.0653 0.3842 0.30539
2006 2 24 53790 0.0658 0.3844 0.30496
2006 2 25 53791 0.0663 0.3845 0.30442
2006 2 26 53792 0.0668 0.3846 0.30356
2006 2 27 53793 0.0672 0.3847 0.30232
2006 2 28 53794 0.0676 0.3848 0.30072
2006 3 1 53795 0.0680 0.3849 0.29887
2006 3 2 53796 0.0684 0.3850 0.29695
2006 3 3 53797 0.0688 0.3851 0.29517
2006 3 4 53798 0.0692 0.3852 0.29366
2006 3 5 53799 0.0695 0.3853 0.29248
2006 3 6 53800 0.0699 0.3854 0.29158
2006 3 7 53801 0.0703 0.3855 0.29089
2006 3 8 53802 0.0706 0.3856 0.29033
2006 3 9 53803 0.0710 0.3856 0.28982
2006 3 10 53804 0.0714 0.3857 0.28928
2006 3 11 53805 0.0717 0.3858 0.28863
2006 3 12 53806 0.0721 0.3859 0.28785
2006 3 13 53807 0.0725 0.3859 0.28691
2006 3 14 53808 0.0729 0.3860 0.28582
2006 3 15 53809 0.0733 0.3861 0.28463
2006 3 16 53810 0.0737 0.3861 0.28339
2006 3 17 53811 0.0741 0.3862 0.28218
2006 3 18 53812 0.0746 0.3862 0.28107
2006 3 19 53813 0.0750 0.3862 0.28012
2006 3 20 53814 0.0755 0.3863 0.27933
2006 3 21 53815 0.0759 0.3863 0.27873
2006 3 22 53816 0.0764 0.3863 0.27825
2006 3 23 53817 0.0769 0.3863 0.27783
2006 3 24 53818 0.0774 0.3863 0.27734
2006 3 25 53819 0.0779 0.3863 0.27664
2006 3 26 53820 0.0784 0.3863 0.27563
2006 3 27 53821 0.0789 0.3863 0.27427
2006 3 28 53822 0.0794 0.3863 0.27262
2006 3 29 53823 0.0800 0.3863 0.27082
2006 3 30 53824 0.0805 0.3862 0.26907
2006 3 31 53825 0.0811 0.3862 0.26755
2006 4 1 53826 0.0816 0.3861 0.26635
2006 4 2 53827 0.0822 0.3861 0.26550
2006 4 3 53828 0.0828 0.3860 0.26493
2006 4 4 53829 0.0834 0.3859 0.26452
2006 4 5 53830 0.0840 0.3858 0.26417
2006 4 6 53831 0.0846 0.3857 0.26377
2006 4 7 53832 0.0852 0.3856 0.26326
2006 4 8 53833 0.0858 0.3855 0.26260
2006 4 9 53834 0.0864 0.3854 0.26176
2006 4 10 53835 0.0870 0.3853 0.26076
2006 4 11 53836 0.0877 0.3851 0.25963
2006 4 12 53837 0.0883 0.3850 0.25844
2006 4 13 53838 0.0890 0.3848 0.25725
2006 4 14 53839 0.0896 0.3846 0.25614
2006 4 15 53840 0.0903 0.3844 0.25517
2006 4 16 53841 0.0909 0.3843 0.25440
2006 4 17 53842 0.0916 0.3840 0.25383
2006 4 18 53843 0.0922 0.3838 0.25343
2006 4 19 53844 0.0929 0.3836 0.25313
2006 4 20 53845 0.0936 0.3834 0.25282
2006 4 21 53846 0.0942 0.3831 0.25238
2006 4 22 53847 0.0949 0.3828 0.25171
2006 4 23 53848 0.0956 0.3826 0.25073
2006 4 24 53849 0.0963 0.3823 0.24946
2006 4 25 53850 0.0969 0.3820 0.24800
2006 4 26 53851 0.0976 0.3816 0.24650
2006 4 27 53852 0.0983 0.3813 0.24515
2006 4 28 53853 0.0990 0.3810 0.24408
2006 4 29 53854 0.0996 0.3806 0.24335
2006 4 30 53855 0.1003 0.3802 0.24293
2006 5 1 53856 0.1010 0.3799 0.24275
2006 5 2 53857 0.1017 0.3795 0.24268
2006 5 3 53858 0.1023 0.3791 0.24262
2006 5 4 53859 0.1030 0.3786 0.24248
2006 5 5 53860 0.1037 0.3782 0.24222
2006 5 6 53861 0.1044 0.3778 0.24180
2006 5 7 53862 0.1050 0.3773 0.24123
2006 5 8 53863 0.1057 0.3768 0.24054
2006 5 9 53864 0.1064 0.3763 0.23977
2006 5 10 53865 0.1070 0.3758 0.23899
2006 5 11 53866 0.1077 0.3753 0.23827
2006 5 12 53867 0.1082 0.3747 0.23768
2006 5 13 53868 0.1088 0.3742 0.23727
2006 5 14 53869 0.1095 0.3736 0.23707
2006 5 15 53870 0.1101 0.3730 0.23706
2006 5 16 53871 0.1108 0.3725 0.23718
2006 5 17 53872 0.1114 0.3718 0.23732
2006 5 18 53873 0.1120 0.3712 0.23737
2006 5 19 53874 0.1127 0.3706 0.23723
2006 5 20 53875 0.1133 0.3699 0.23684
2006 5 21 53876 0.1139 0.3692 0.23618
2006 5 22 53877 0.1145 0.3686 0.23533
2006 5 23 53878 0.1151 0.3679 0.23441
2006 5 24 53879 0.1157 0.3671 0.23356
2006 5 25 53880 0.1163 0.3664 0.23294
2006 5 26 53881 0.1168 0.3657 0.23261
2006 5 27 53882 0.1174 0.3649 0.23260
2006 5 28 53883 0.1179 0.3641 0.23284
2006 5 29 53884 0.1185 0.3633 0.23322
2006 5 30 53885 0.1190 0.3625 0.23365
2006 5 31 53886 0.1195 0.3617 0.23401
2006 6 1 53887 0.1201 0.3609 0.23425
2006 6 2 53888 0.1206 0.3600 0.23432
2006 6 3 53889 0.1211 0.3592 0.23424
2006 6 4 53890 0.1216 0.3583 0.23403
2006 6 5 53891 0.1220 0.3574 0.23375
2006 6 6 53892 0.1225 0.3565 0.23344
2006 6 7 53893 0.1230 0.3556 0.23318
2006 6 8 53894 0.1234 0.3546 0.23303
2006 6 9 53895 0.1238 0.3537 0.23305
2006 6 10 53896 0.1242 0.3527 0.23326
2006 6 11 53897 0.1246 0.3517 0.23368
2006 6 12 53898 0.1250 0.3507 0.23425
2006 6 13 53899 0.1254 0.3497 0.23488
2006 6 14 53900 0.1258 0.3487 0.23544
2006 6 15 53901 0.1261 0.3477 0.23581
2006 6 16 53902 0.1265 0.3466 0.23592
2006 6 17 53903 0.1268 0.3456 0.23578
2006 6 18 53904 0.1271 0.3445 0.23543
2006 6 19 53905 0.1274 0.3434 0.23500
2006 6 20 53906 0.1277 0.3423 0.23464
2006 6 21 53907 0.1279 0.3412 0.23446
2006 6 22 53908 0.1282 0.3401 0.23457
2006 6 23 53909 0.1284 0.3390 0.23497
2006 6 24 53910 0.1286 0.3378 0.23563
2006 6 25 53911 0.1288 0.3367 0.23646
2006 6 26 53912 0.1290 0.3355 0.23737
2006 6 27 53913 0.1292 0.3343 0.23824
2006 6 28 53914 0.1293 0.3332 0.23901
2006 6 29 53915 0.1295 0.3320 0.23962
2006 6 30 53916 0.1296 0.3308 0.24007
2006 7 1 53917 0.1297 0.3296 0.24038
2006 7 2 53918 0.1298 0.3283 0.24059
2006 7 3 53919 0.1298 0.3271 0.24076
2006 7 4 53920 0.1298 0.3259 0.24095
2006 7 5 53921 0.1299 0.3246 0.24123
2006 7 6 53922 0.1299 0.3234 0.24164
2006 7 7 53923 0.1298 0.3221 0.24223
2006 7 8 53924 0.1298 0.3209 0.24300
2006 7 9 53925 0.1297 0.3196 0.24393
2006 7 10 53926 0.1297 0.3183 0.24494
2006 7 11 53927 0.1296 0.3170 0.24590
2006 7 12 53928 0.1294 0.3157 0.24669
2006 7 13 53929 0.1293 0.3145 0.24719
2006 7 14 53930 0.1291 0.3132 0.24739
2006 7 15 53931 0.1289 0.3119 0.24733
2006 7 16 53932 0.1287 0.3106 0.24715
2006 7 17 53933 0.1285 0.3092 0.24700
2006 7 18 53934 0.1282 0.3079 0.24703
2006 7 19 53935 0.1280 0.3066 0.24732
2006 7 20 53936 0.1277 0.3053 0.24790
2006 7 21 53937 0.1273 0.3040 0.24874
2006 7 22 53938 0.1270 0.3027 0.24975
2006 7 23 53939 0.1266 0.3014 0.25084
2006 7 24 53940 0.1262 0.3000 0.25190
2006 7 25 53941 0.1258 0.2987 0.25285
2006 7 26 53942 0.1253 0.2974 0.25364
2006 7 27 53943 0.1249 0.2961 0.25426
2006 7 28 53944 0.1244 0.2948 0.25470
2006 7 29 53945 0.1239 0.2935 0.25502
2006 7 30 53946 0.1233 0.2922 0.25527
2006 7 31 53947 0.1228 0.2909 0.25551
2006 8 1 53948 0.1222 0.2896 0.25581
2006 8 2 53949 0.1215 0.2883 0.25623
2006 8 3 53950 0.1209 0.2870 0.25679
2006 8 4 53951 0.1202 0.2857 0.25752
2006 8 5 53952 0.1195 0.2844 0.25841
2006 8 6 53953 0.1188 0.2832 0.25939
2006 8 7 53954 0.1181 0.2819 0.26036
2006 8 8 53955 0.1173 0.2806 0.26119
2006 8 9 53956 0.1165 0.2794 0.26175
2006 8 10 53957 0.1157 0.2782 0.26197
2006 8 11 53958 0.1148 0.2769 0.26187
2006 8 12 53959 0.1139 0.2757 0.26157
2006 8 13 53960 0.1130 0.2745 0.26123
2006 8 14 53961 0.1121 0.2733 0.26104
2006 8 15 53962 0.1111 0.2721 0.26113
2006 8 16 53963 0.1101 0.2709 0.26155
2006 8 17 53964 0.1091 0.2698 0.26226
2006 8 18 53965 0.1081 0.2686 0.26318
2006 8 19 53966 0.1070 0.2675 0.26421
2006 8 20 53967 0.1059 0.2663 0.26525
2006 8 21 53968 0.1048 0.2652 0.26619
2006 8 22 53969 0.1037 0.2641 0.26698
2006 8 23 53970 0.1025 0.2631 0.26758
2006 8 24 53971 0.1013 0.2620 0.26797
2006 8 25 53972 0.1001 0.2610 0.26820
2006 8 26 53973 0.0988 0.2599 0.26829
2006 8 27 53974 0.0976 0.2589 0.26833
2006 8 28 53975 0.0963 0.2579 0.26837
2006 8 29 53976 0.0950 0.2569 0.26850
2006 8 30 53977 0.0937 0.2560 0.26874
2006 8 31 53978 0.0923 0.2550 0.26912
2006 9 1 53979 0.0910 0.2541 0.26960
2006 9 2 53980 0.0895 0.2532 0.27015
2006 9 3 53981 0.0881 0.2523 0.27066
2006 9 4 53982 0.0867 0.2515 0.27102
2006 9 5 53983 0.0852 0.2506 0.27109
2006 9 6 53984 0.0837 0.2498 0.27078
2006 9 7 53985 0.0822 0.2490 0.27006
2006 9 8 53986 0.0806 0.2482 0.26901
2006 9 9 53987 0.0790 0.2475 0.26780
2006 9 10 53988 0.0774 0.2468 0.26665
2006 9 11 53989 0.0758 0.2461 0.26573
2006 9 12 53990 0.0742 0.2454 0.26513
2006 9 13 53991 0.0725 0.2448 0.26486
2006 9 14 53992 0.0708 0.2441 0.26481
2006 9 15 53993 0.0691 0.2435 0.26487
2006 9 16 53994 0.0673 0.2430 0.26494
2006 9 17 53995 0.0656 0.2424 0.26493
2006 9 18 53996 0.0638 0.2419 0.26478
2006 9 19 53997 0.0620 0.2415 0.26448
2006 9 20 53998 0.0602 0.2410 0.26404
2006 9 21 53999 0.0583 0.2406 0.26349
2006 9 22 54000 0.0565 0.2402 0.26289
2006 9 23 54001 0.0546 0.2398 0.26231
2006 9 24 54002 0.0527 0.2395 0.26181
2006 9 25 54003 0.0508 0.2392 0.26138
2006 9 26 54004 0.0488 0.2389 0.26107
2006 9 27 54005 0.0469 0.2386 0.26094
2006 9 28 54006 0.0449 0.2384 0.26096
2006 9 29 54007 0.0429 0.2382 0.26106
2006 9 30 54008 0.0409 0.2381 0.26123
2006 10 1 54009 0.0389 0.2380 0.26132
2006 10 2 54010 0.0369 0.2379 0.26123
2006 10 3 54011 0.0348 0.2378 0.26084
2006 10 4 54012 0.0328 0.2378 0.26011
2006 10 5 54013 0.0307 0.2378 0.25906
2006 10 6 54014 0.0286 0.2379 0.25781
2006 10 7 54015 0.0265 0.2379 0.25649
2006 10 8 54016 0.0244 0.2380 0.25530
2006 10 9 54017 0.0223 0.2382 0.25444
2006 10 10 54018 0.0201 0.2384 0.25398
2006 10 11 54019 0.0180 0.2386 0.25386
2006 10 12 54020 0.0158 0.2388 0.25395
2006 10 13 54021 0.0137 0.2391 0.25406
2006 10 14 54022 0.0115 0.2394 0.25406
2006 10 15 54023 0.0093 0.2398 0.25392
2006 10 16 54024 0.0071 0.2401 0.25358
2006 10 17 54025 0.0049 0.2406 0.25308
2006 10 18 54026 0.0027 0.2410 0.25239
2006 10 19 54027 0.0005 0.2415 0.25151
2006 10 20 54028 -0.0017 0.2420 0.25050
2006 10 21 54029 -0.0039 0.2426 0.24950
2006 10 22 54030 -0.0061 0.2432 0.24858
2006 10 23 54031 -0.0083 0.2438 0.24782
2006 10 24 54032 -0.0105 0.2445 0.24725
2006 10 25 54033 -0.0127 0.2452 0.24685
2006 10 26 54034 -0.0149 0.2459 0.24659
2006 10 27 54035 -0.0171 0.2467 0.24641
2006 10 28 54036 -0.0193 0.2475 0.24620
2006 10 29 54037 -0.0215 0.2483 0.24590
2006 10 30 54038 -0.0238 0.2492 0.24544
2006 10 31 54039 -0.0260 0.2501 0.24473
2006 11 1 54040 -0.0281 0.2511 0.24374
2006 11 2 54041 -0.0303 0.2520 0.24248
2006 11 3 54042 -0.0325 0.2530 0.24105
2006 11 4 54043 -0.0347 0.2541 0.23964
2006 11 5 54044 -0.0369 0.2552 0.23848
2006 11 6 54045 -0.0390 0.2563 0.23766
2006 11 7 54046 -0.0412 0.2574 0.23713
2006 11 8 54047 -0.0433 0.2586 0.23684
2006 11 9 54048 -0.0454 0.2598 0.23670
2006 11 10 54049 -0.0476 0.2611 0.23659
2006 11 11 54050 -0.0497 0.2624 0.23643
2006 11 12 54051 -0.0518 0.2637 0.23608
2006 11 13 54052 -0.0538 0.2651 0.23554
2006 11 14 54053 -0.0559 0.2664 0.23490
2006 11 15 54054 -0.0579 0.2679 0.23420
2006 11 16 54055 -0.0600 0.2693 0.23348
2006 11 17 54056 -0.0620 0.2708 0.23278
2006 11 18 54057 -0.0640 0.2723 0.23216
2006 11 19 54058 -0.0660 0.2738 0.23170
2006 11 20 54059 -0.0679 0.2754 0.23136
2006 11 21 54060 -0.0698 0.2770 0.23113
2006 11 22 54061 -0.0718 0.2787 0.23097
2006 11 23 54062 -0.0737 0.2803 0.23086
2006 11 24 54063 -0.0755 0.2820 0.23074
2006 11 25 54064 -0.0774 0.2837 0.23055
2006 11 26 54065 -0.0792 0.2855 0.23013
2006 11 27 54066 -0.0810 0.2873 0.22945
2006 11 28 54067 -0.0828 0.2891 0.22849
2006 11 29 54068 -0.0845 0.2909 0.22722
2006 11 30 54069 -0.0863 0.2928 0.22580
2006 12 1 54070 -0.0880 0.2947 0.22440
2006 12 2 54071 -0.0896 0.2966 0.22316
2006 12 3 54072 -0.0913 0.2986 0.22215
2006 12 4 54073 -0.0929 0.3005 0.22148
2006 12 5 54074 -0.0944 0.3025 0.22107
2006 12 6 54075 -0.0960 0.3046 0.22086
2006 12 7 54076 -0.0975 0.3066 0.22071
2006 12 8 54077 -0.0990 0.3087 0.22052
2006 12 9 54078 -0.1004 0.3108 0.22026
2006 12 10 54079 -0.1019 0.3129 0.21986
2006 12 11 54080 -0.1032 0.3150 0.21928
2006 12 12 54081 -0.1046 0.3172 0.21857
2006 12 13 54082 -0.1059 0.3194 0.21781
2006 12 14 54083 -0.1072 0.3216 0.21704
2006 12 15 54084 -0.1084 0.3238 0.21633
2006 12 16 54085 -0.1096 0.3261 0.21572
2006 12 17 54086 -0.1108 0.3284 0.21529
2006 12 18 54087 -0.1119 0.3306 0.21498
2006 12 19 54088 -0.1130 0.3329 0.21479
2006 12 20 54089 -0.1141 0.3353 0.21472
2006 12 21 54090 -0.1151 0.3376 0.21472
2006 12 22 54091 -0.1161 0.3400 0.21472
2006 12 23 54092 -0.1170 0.3423 0.21462
2006 12 24 54093 -0.1179 0.3447 0.21427
2006 12 25 54094 -0.1187 0.3471 0.21367
2006 12 26 54095 -0.1195 0.3496 0.21282
2006 12 27 54096 -0.1203 0.3520 0.21182
2006 12 28 54097 -0.1210 0.3545 0.21083
2006 12 29 54098 -0.1217 0.3569 0.21000
2006 12 30 54099 -0.1223 0.3594 0.20946
2006 12 31 54100 -0.1229 0.3619 0.20927
2007 1 1 54101 -0.1235 0.3644 0.20945
2007 1 2 54102 -0.1240 0.3669 0.20993
2007 1 3 54103 -0.1244 0.3694 0.21052
2007 1 4 54104 -0.1249 0.3719 0.21108
2007 1 5 54105 -0.1252 0.3745 0.21145
2007 1 6 54106 -0.1255 0.3770 0.21163
2007 1 7 54107 -0.1258 0.3795 0.21169
2007 1 8 54108 -0.1260 0.3821 0.21166
2007 1 9 54109 -0.1262 0.3847 0.21153
2007 1 10 54110 -0.1264 0.3872 0.21131
2007 1 11 54111 -0.1264 0.3898 0.21117
2007 1 12 54112 -0.1265 0.3924 0.21115
2007 1 13 54113 -0.1265 0.3950 0.21133
2007 1 14 54114 -0.1264 0.3975 0.21163
2007 1 15 54115 -0.1263 0.4001 0.21206
2007 1 16 54116 -0.1262 0.4027 0.21257
2007 1 17 54117 -0.1260 0.4053 0.21311
2007 1 18 54118 -0.1257 0.4079 0.21360
2007 1 19 54119 -0.1254 0.4105 0.21393
2007 1 20 54120 -0.1251 0.4131 0.21399
2007 1 21 54121 -0.1247 0.4157 0.21376
2007 1 22 54122 -0.1243 0.4182 0.21328
2007 1 23 54123 -0.1238 0.4208 0.21267
2007 1 24 54124 -0.1232 0.4234 0.21207
2007 1 25 54125 -0.1227 0.4260 0.21156
2007 1 26 54126 -0.1220 0.4285 0.21126
2007 1 27 54127 -0.1214 0.4311 0.21124
2007 1 28 54128 -0.1206 0.4337 0.21152
2007 1 29 54129 -0.1199 0.4362 0.21199
2007 1 30 54130 -0.1190 0.4388 0.21248
2007 1 31 54131 -0.1182 0.4413 0.21286
2007 2 1 54132 -0.1172 0.4438 0.21303
2007 2 2 54133 -0.1163 0.4463 0.21299
2007 2 3 54134 -0.1153 0.4488 0.21274
2007 2 4 54135 -0.1142 0.4513 0.21236
2007 2 5 54136 -0.1131 0.4538 0.21180
2007 2 6 54137 -0.1119 0.4563 0.21102
2007 2 7 54138 -0.1107 0.4587 0.21012
2007 2 8 54139 -0.1095 0.4612 0.20917
2007 2 9 54140 -0.1082 0.4636 0.20823
2007 2 10 54141 -0.1068 0.4660 0.20738
2007 2 11 54142 -0.1055 0.4684 0.20671
2007 2 12 54143 -0.1040 0.4708 0.20620
2007 2 13 54144 -0.1025 0.4732 0.20578
2007 2 14 54145 -0.1010 0.4755 0.20539
2007 2 15 54146 -0.0994 0.4778 0.20489
2007 2 16 54147 -0.0978 0.4802 0.20415
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)
53763 -57.15 .23 -2.58 .34
53764 -56.80 .20 -2.65 .34
53765 -56.26 .20 -2.45 .34
53766 -55.98 .11 -2.16 .34
53767 -56.11 .11 -2.06 .34
53768 -56.44 .11 -2.16 .34
53769 -56.79 .11 -2.28 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53763 0.111 0.091 -0.410 0.340
53764 0.107 0.080 -0.375 0.340
53765 0.096 0.080 -0.381 0.340
53766 0.090 0.044 -0.399 0.340
53767 0.077 0.044 -0.390 0.340
53768 0.053 0.044 -0.365 0.340
53769 0.026 0.044 -0.382 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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