**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
6 April 2006 Vol. XIX No. 014
______________________________________________________________________
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
**********************************************************************
* 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 3 31 53825 .10202 .00004 .37456 .00005 .268008 .000014
6 4 1 53826 .10269 .00004 .37402 .00004 .266506 .000014
6 4 2 53827 .10330 .00003 .37346 .00004 .265383 .000016
6 4 3 53828 .10369 .00003 .37299 .00003 .264560 .000019
6 4 4 53829 .10408 .00002 .37263 .00002 .263949 .000019
6 4 5 53830 .10446 .00002 .37226 .00003 .263406 .000018
6 4 6 53831 .10472 .00002 .37182 .00003 .262734 .000018
IERS Final Values
MJD x y UT1-UTC
" " s
6 2 4 53770 .0502 .3845 .31975
6 2 5 53771 .0504 .3846 .31864
6 2 6 53772 .0510 .3844 .31782
6 2 7 53773 .0512 .3844 .31722
6 2 8 53774 .0515 .3843 .31678
6 2 9 53775 .0527 .3842 .31643
6 2 10 53776 .0539 .3844 .31607
6 2 11 53777 .0551 .3845 .31560
6 2 12 53778 .0564 .3844 .31502
6 2 13 53779 .0574 .3841 .31423
6 2 14 53780 .0582 .3838 .31334
6 2 15 53781 .0591 .3836 .31237
6 2 16 53782 .0603 .3836 .31135
6 2 17 53783 .0621 .3840 .31025
6 2 18 53784 .0642 .3845 .30914
6 2 19 53785 .0659 .3849 .30810
6 2 20 53786 .0669 .3848 .30715
6 2 21 53787 .0674 .3846 .30637
6 2 22 53788 .0675 .3842 .30582
6 2 23 53789 .0677 .3838 .30542
6 2 24 53790 .0681 .3835 .30505
6 2 25 53791 .0689 .3830 .30452
6 2 26 53792 .0702 .3827 .30372
6 2 27 53793 .0714 .3827 .30251
6 2 28 53794 .0721 .3829 .30089
6 3 1 53795 .0725 .3830 .29901
6 3 2 53796 .0736 .3830 .29701
6 3 3 53797 .0750 .3833 .29518
6 3 4 53798 .0769 .3829 .29360
6 3 5 53799 .0788 .3833 .29234
_______________________________________________________________________
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 = .0553 - .1434 cos A + .0913 sin A + .1813 cos C - .0599 sin C
y = .3564 + .0809 cos A + .1350 sin A - .0599 cos C - .1813 sin C
UT1-UTC = .2743 - .00041 (MJD - 53836) - (UT2-UT1)
where A = 2*pi*(MJD-53831)/365.25 and C = 2*pi*(MJD-53831)/435.
TAI-UTC(MJD 53832) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53831)**0.80 S t = 0.00025 (MJD-53831)**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 4 7 53832 0.1050 0.3714 0.26184
2006 4 8 53833 0.1054 0.3710 0.26080
2006 4 9 53834 0.1058 0.3707 0.25963
2006 4 10 53835 0.1062 0.3703 0.25833
2006 4 11 53836 0.1067 0.3699 0.25690
2006 4 12 53837 0.1073 0.3696 0.25541
2006 4 13 53838 0.1078 0.3692 0.25390
2006 4 14 53839 0.1084 0.3688 0.25246
2006 4 15 53840 0.1090 0.3684 0.25123
2006 4 16 53841 0.1096 0.3680 0.25020
2006 4 17 53842 0.1102 0.3676 0.24935
2006 4 18 53843 0.1108 0.3671 0.24865
2006 4 19 53844 0.1114 0.3667 0.24806
2006 4 20 53845 0.1120 0.3662 0.24748
2006 4 21 53846 0.1126 0.3657 0.24679
2006 4 22 53847 0.1131 0.3653 0.24590
2006 4 23 53848 0.1137 0.3648 0.24473
2006 4 24 53849 0.1143 0.3643 0.24332
2006 4 25 53850 0.1149 0.3638 0.24174
2006 4 26 53851 0.1154 0.3632 0.24016
2006 4 27 53852 0.1159 0.3627 0.23873
2006 4 28 53853 0.1165 0.3622 0.23758
2006 4 29 53854 0.1170 0.3616 0.23675
2006 4 30 53855 0.1175 0.3610 0.23620
2006 5 1 53856 0.1180 0.3605 0.23585
2006 5 2 53857 0.1185 0.3599 0.23559
2006 5 3 53858 0.1189 0.3593 0.23532
2006 5 4 53859 0.1194 0.3587 0.23496
2006 5 5 53860 0.1198 0.3581 0.23447
2006 5 6 53861 0.1203 0.3574 0.23382
2006 5 7 53862 0.1207 0.3568 0.23301
2006 5 8 53863 0.1211 0.3562 0.23208
2006 5 9 53864 0.1215 0.3555 0.23109
2006 5 10 53865 0.1219 0.3548 0.23007
2006 5 11 53866 0.1222 0.3541 0.22911
2006 5 12 53867 0.1226 0.3535 0.22828
2006 5 13 53868 0.1229 0.3528 0.22762
2006 5 14 53869 0.1233 0.3520 0.22716
2006 5 15 53870 0.1236 0.3513 0.22689
2006 5 16 53871 0.1239 0.3506 0.22674
2006 5 17 53872 0.1242 0.3498 0.22661
2006 5 18 53873 0.1245 0.3491 0.22638
2006 5 19 53874 0.1247 0.3483 0.22595
2006 5 20 53875 0.1250 0.3475 0.22526
2006 5 21 53876 0.1252 0.3468 0.22431
2006 5 22 53877 0.1255 0.3460 0.22318
2006 5 23 53878 0.1257 0.3452 0.22200
2006 5 24 53879 0.1259 0.3443 0.22091
2006 5 25 53880 0.1261 0.3435 0.22006
2006 5 26 53881 0.1263 0.3427 0.21952
2006 5 27 53882 0.1264 0.3418 0.21931
2006 5 28 53883 0.1266 0.3410 0.21937
2006 5 29 53884 0.1268 0.3401 0.21959
2006 5 30 53885 0.1269 0.3392 0.21987
2006 5 31 53886 0.1271 0.3384 0.22011
2006 6 1 53887 0.1272 0.3375 0.22023
2006 6 2 53888 0.1273 0.3366 0.22020
2006 6 3 53889 0.1273 0.3356 0.22003
2006 6 4 53890 0.1274 0.3347 0.21973
2006 6 5 53891 0.1275 0.3338 0.21934
2006 6 6 53892 0.1275 0.3329 0.21894
2006 6 7 53893 0.1276 0.3319 0.21858
2006 6 8 53894 0.1276 0.3309 0.21833
2006 6 9 53895 0.1276 0.3300 0.21825
2006 6 10 53896 0.1276 0.3290 0.21837
2006 6 11 53897 0.1276 0.3280 0.21870
2006 6 12 53898 0.1276 0.3270 0.21920
2006 6 13 53899 0.1276 0.3260 0.21975
2006 6 14 53900 0.1275 0.3250 0.22025
2006 6 15 53901 0.1275 0.3240 0.22056
2006 6 16 53902 0.1274 0.3230 0.22062
2006 6 17 53903 0.1273 0.3219 0.22041
2006 6 18 53904 0.1272 0.3209 0.22000
2006 6 19 53905 0.1271 0.3199 0.21952
2006 6 20 53906 0.1270 0.3188 0.21909
2006 6 21 53907 0.1269 0.3177 0.21885
2006 6 22 53908 0.1267 0.3167 0.21888
2006 6 23 53909 0.1265 0.3156 0.21921
2006 6 24 53910 0.1264 0.3145 0.21981
2006 6 25 53911 0.1262 0.3134 0.22057
2006 6 26 53912 0.1260 0.3124 0.22140
2006 6 27 53913 0.1258 0.3113 0.22220
2006 6 28 53914 0.1256 0.3102 0.22289
2006 6 29 53915 0.1253 0.3091 0.22344
2006 6 30 53916 0.1251 0.3080 0.22382
2006 7 1 53917 0.1248 0.3068 0.22407
2006 7 2 53918 0.1245 0.3057 0.22422
2006 7 3 53919 0.1242 0.3046 0.22433
2006 7 4 53920 0.1239 0.3035 0.22446
2006 7 5 53921 0.1236 0.3024 0.22468
2006 7 6 53922 0.1233 0.3012 0.22504
2006 7 7 53923 0.1229 0.3001 0.22558
2006 7 8 53924 0.1225 0.2990 0.22631
2006 7 9 53925 0.1222 0.2978 0.22720
2006 7 10 53926 0.1218 0.2967 0.22818
2006 7 11 53927 0.1213 0.2955 0.22912
2006 7 12 53928 0.1209 0.2944 0.22988
2006 7 13 53929 0.1205 0.2933 0.23037
2006 7 14 53930 0.1200 0.2921 0.23056
2006 7 15 53931 0.1195 0.2910 0.23050
2006 7 16 53932 0.1190 0.2898 0.23032
2006 7 17 53933 0.1185 0.2887 0.23017
2006 7 18 53934 0.1180 0.2876 0.23021
2006 7 19 53935 0.1175 0.2864 0.23051
2006 7 20 53936 0.1169 0.2853 0.23111
2006 7 21 53937 0.1163 0.2841 0.23189
2006 7 22 53938 0.1157 0.2830 0.23285
2006 7 23 53939 0.1151 0.2819 0.23389
2006 7 24 53940 0.1145 0.2808 0.23490
2006 7 25 53941 0.1138 0.2796 0.23580
2006 7 26 53942 0.1131 0.2785 0.23655
2006 7 27 53943 0.1125 0.2774 0.23711
2006 7 28 53944 0.1117 0.2763 0.23751
2006 7 29 53945 0.1110 0.2752 0.23778
2006 7 30 53946 0.1103 0.2741 0.23798
2006 7 31 53947 0.1095 0.2730 0.23817
2006 8 1 53948 0.1087 0.2720 0.23842
2006 8 2 53949 0.1079 0.2709 0.23878
2006 8 3 53950 0.1071 0.2698 0.23929
2006 8 4 53951 0.1062 0.2688 0.23996
2006 8 5 53952 0.1054 0.2677 0.24079
2006 8 6 53953 0.1045 0.2667 0.24171
2006 8 7 53954 0.1036 0.2656 0.24262
2006 8 8 53955 0.1027 0.2646 0.24338
2006 8 9 53956 0.1017 0.2636 0.24388
2006 8 10 53957 0.1007 0.2626 0.24402
2006 8 11 53958 0.0997 0.2616 0.24384
2006 8 12 53959 0.0987 0.2606 0.24344
2006 8 13 53960 0.0977 0.2597 0.24301
2006 8 14 53961 0.0966 0.2587 0.24272
2006 8 15 53962 0.0955 0.2578 0.24268
2006 8 16 53963 0.0944 0.2569 0.24296
2006 8 17 53964 0.0933 0.2560 0.24352
2006 8 18 53965 0.0922 0.2551 0.24427
2006 8 19 53966 0.0910 0.2542 0.24510
2006 8 20 53967 0.0898 0.2533 0.24591
2006 8 21 53968 0.0886 0.2525 0.24662
2006 8 22 53969 0.0874 0.2517 0.24716
2006 8 23 53970 0.0861 0.2508 0.24751
2006 8 24 53971 0.0848 0.2500 0.24768
2006 8 25 53972 0.0835 0.2493 0.24769
2006 8 26 53973 0.0822 0.2485 0.24761
2006 8 27 53974 0.0808 0.2478 0.24749
2006 8 28 53975 0.0794 0.2470 0.24741
2006 8 29 53976 0.0780 0.2463 0.24742
2006 8 30 53977 0.0766 0.2457 0.24756
2006 8 31 53978 0.0752 0.2450 0.24786
2006 9 1 53979 0.0737 0.2444 0.24830
2006 9 2 53980 0.0722 0.2438 0.24884
2006 9 3 53981 0.0707 0.2432 0.24940
2006 9 4 53982 0.0692 0.2426 0.24986
2006 9 5 53983 0.0676 0.2420 0.25009
2006 9 6 53984 0.0660 0.2415 0.24998
2006 9 7 53985 0.0644 0.2410 0.24949
2006 9 8 53986 0.0628 0.2405 0.24870
2006 9 9 53987 0.0611 0.2401 0.24776
2006 9 10 53988 0.0595 0.2397 0.24687
2006 9 11 53989 0.0578 0.2393 0.24620
2006 9 12 53990 0.0561 0.2389 0.24585
2006 9 13 53991 0.0543 0.2385 0.24583
2006 9 14 53992 0.0526 0.2382 0.24604
2006 9 15 53993 0.0508 0.2379 0.24638
2006 9 16 53994 0.0490 0.2376 0.24673
2006 9 17 53995 0.0472 0.2374 0.24699
2006 9 18 53996 0.0454 0.2372 0.24710
2006 9 19 53997 0.0435 0.2370 0.24702
2006 9 20 53998 0.0416 0.2368 0.24675
2006 9 21 53999 0.0397 0.2367 0.24633
2006 9 22 54000 0.0378 0.2366 0.24579
2006 9 23 54001 0.0359 0.2366 0.24521
2006 9 24 54002 0.0339 0.2365 0.24465
2006 9 25 54003 0.0320 0.2365 0.24417
2006 9 26 54004 0.0300 0.2366 0.24384
2006 9 27 54005 0.0280 0.2366 0.24366
2006 9 28 54006 0.0259 0.2367 0.24364
2006 9 29 54007 0.0239 0.2368 0.24375
2006 9 30 54008 0.0219 0.2370 0.24392
2006 10 1 54009 0.0198 0.2372 0.24404
2006 10 2 54010 0.0177 0.2374 0.24401
2006 10 3 54011 0.0156 0.2376 0.24371
2006 10 4 54012 0.0135 0.2379 0.24307
2006 10 5 54013 0.0114 0.2382 0.24210
2006 10 6 54014 0.0093 0.2386 0.24091
2006 10 7 54015 0.0071 0.2390 0.23967
2006 10 8 54016 0.0050 0.2394 0.23859
2006 10 9 54017 0.0028 0.2398 0.23781
2006 10 10 54018 0.0006 0.2403 0.23739
2006 10 11 54019 -0.0015 0.2408 0.23727
2006 10 12 54020 -0.0037 0.2414 0.23735
2006 10 13 54021 -0.0059 0.2420 0.23750
2006 10 14 54022 -0.0081 0.2426 0.23759
2006 10 15 54023 -0.0103 0.2432 0.23756
2006 10 16 54024 -0.0125 0.2439 0.23737
2006 10 17 54025 -0.0147 0.2446 0.23702
2006 10 18 54026 -0.0169 0.2453 0.23652
2006 10 19 54027 -0.0191 0.2461 0.23592
2006 10 20 54028 -0.0213 0.2469 0.23527
2006 10 21 54029 -0.0235 0.2478 0.23462
2006 10 22 54030 -0.0257 0.2487 0.23405
2006 10 23 54031 -0.0279 0.2496 0.23360
2006 10 24 54032 -0.0301 0.2505 0.23330
2006 10 25 54033 -0.0323 0.2515 0.23314
2006 10 26 54034 -0.0345 0.2525 0.23309
2006 10 27 54035 -0.0367 0.2536 0.23310
2006 10 28 54036 -0.0388 0.2547 0.23306
2006 10 29 54037 -0.0410 0.2558 0.23287
2006 10 30 54038 -0.0432 0.2570 0.23240
2006 10 31 54039 -0.0454 0.2582 0.23160
2006 11 1 54040 -0.0475 0.2594 0.23044
2006 11 2 54041 -0.0497 0.2607 0.22900
2006 11 3 54042 -0.0518 0.2620 0.22744
2006 11 4 54043 -0.0540 0.2633 0.22594
2006 11 5 54044 -0.0561 0.2647 0.22467
2006 11 6 54045 -0.0582 0.2661 0.22374
2006 11 7 54046 -0.0603 0.2675 0.22316
2006 11 8 54047 -0.0624 0.2690 0.22283
2006 11 9 54048 -0.0645 0.2705 0.22265
2006 11 10 54049 -0.0665 0.2720 0.22243
2006 11 11 54050 -0.0686 0.2735 0.22208
2006 11 12 54051 -0.0706 0.2751 0.22159
2006 11 13 54052 -0.0726 0.2768 0.22097
2006 11 14 54053 -0.0746 0.2784 0.22029
2006 11 15 54054 -0.0765 0.2801 0.21958
2006 11 16 54055 -0.0785 0.2818 0.21884
2006 11 17 54056 -0.0804 0.2836 0.21810
2006 11 18 54057 -0.0823 0.2854 0.21750
2006 11 19 54058 -0.0841 0.2872 0.21712
2006 11 20 54059 -0.0860 0.2890 0.21697
2006 11 21 54060 -0.0878 0.2909 0.21702
2006 11 22 54061 -0.0896 0.2928 0.21720
2006 11 23 54062 -0.0914 0.2947 0.21742
2006 11 24 54063 -0.0931 0.2966 0.21757
2006 11 25 54064 -0.0948 0.2986 0.21758
2006 11 26 54065 -0.0965 0.3006 0.21733
2006 11 27 54066 -0.0981 0.3027 0.21682
2006 11 28 54067 -0.0997 0.3047 0.21603
2006 11 29 54068 -0.1013 0.3068 0.21495
2006 11 30 54069 -0.1029 0.3089 0.21366
2006 12 1 54070 -0.1044 0.3110 0.21238
2006 12 2 54071 -0.1058 0.3132 0.21128
2006 12 3 54072 -0.1073 0.3154 0.21046
2006 12 4 54073 -0.1087 0.3176 0.20989
2006 12 5 54074 -0.1101 0.3198 0.20950
2006 12 6 54075 -0.1114 0.3220 0.20931
2006 12 7 54076 -0.1127 0.3243 0.20916
2006 12 8 54077 -0.1139 0.3266 0.20886
2006 12 9 54078 -0.1151 0.3289 0.20839
2006 12 10 54079 -0.1163 0.3312 0.20772
2006 12 11 54080 -0.1174 0.3336 0.20685
2006 12 12 54081 -0.1185 0.3359 0.20584
2006 12 13 54082 -0.1195 0.3383 0.20482
2006 12 14 54083 -0.1205 0.3407 0.20384
2006 12 15 54084 -0.1215 0.3431 0.20296
2006 12 16 54085 -0.1224 0.3456 0.20225
2006 12 17 54086 -0.1232 0.3480 0.20172
2006 12 18 54087 -0.1241 0.3505 0.20132
2006 12 19 54088 -0.1248 0.3530 0.20104
2006 12 20 54089 -0.1255 0.3555 0.20085
2006 12 21 54090 -0.1262 0.3580 0.20071
2006 12 22 54091 -0.1268 0.3605 0.20053
2006 12 23 54092 -0.1274 0.3630 0.20016
2006 12 24 54093 -0.1279 0.3655 0.19958
2006 12 25 54094 -0.1284 0.3681 0.19874
2006 12 26 54095 -0.1288 0.3706 0.19769
2006 12 27 54096 -0.1292 0.3732 0.19654
2006 12 28 54097 -0.1295 0.3758 0.19543
2006 12 29 54098 -0.1298 0.3783 0.19452
2006 12 30 54099 -0.1300 0.3809 0.19391
2006 12 31 54100 -0.1302 0.3835 0.19367
2007 1 1 54101 -0.1303 0.3861 0.19365
2007 1 2 54102 -0.1304 0.3887 0.19382
2007 1 3 54103 -0.1304 0.3913 0.19409
2007 1 4 54104 -0.1303 0.3939 0.19431
2007 1 5 54105 -0.1302 0.3965 0.19437
2007 1 6 54106 -0.1301 0.3992 0.19426
2007 1 7 54107 -0.1299 0.4018 0.19396
2007 1 8 54108 -0.1296 0.4044 0.19348
2007 1 9 54109 -0.1293 0.4070 0.19292
2007 1 10 54110 -0.1289 0.4096 0.19232
2007 1 11 54111 -0.1285 0.4122 0.19180
2007 1 12 54112 -0.1281 0.4148 0.19140
2007 1 13 54113 -0.1275 0.4174 0.19114
2007 1 14 54114 -0.1270 0.4200 0.19103
2007 1 15 54115 -0.1263 0.4226 0.19114
2007 1 16 54116 -0.1256 0.4252 0.19143
2007 1 17 54117 -0.1249 0.4278 0.19182
2007 1 18 54118 -0.1241 0.4304 0.19220
2007 1 19 54119 -0.1232 0.4329 0.19238
2007 1 20 54120 -0.1223 0.4355 0.19226
2007 1 21 54121 -0.1214 0.4380 0.19181
2007 1 22 54122 -0.1204 0.4406 0.19106
2007 1 23 54123 -0.1193 0.4431 0.19013
2007 1 24 54124 -0.1182 0.4456 0.18911
2007 1 25 54125 -0.1170 0.4481 0.18814
2007 1 26 54126 -0.1158 0.4506 0.18733
2007 1 27 54127 -0.1146 0.4531 0.18680
2007 1 28 54128 -0.1132 0.4555 0.18655
2007 1 29 54129 -0.1119 0.4580 0.18653
2007 1 30 54130 -0.1105 0.4604 0.18662
2007 1 31 54131 -0.1090 0.4628 0.18668
2007 2 1 54132 -0.1075 0.4652 0.18663
2007 2 2 54133 -0.1059 0.4676 0.18639
2007 2 3 54134 -0.1043 0.4700 0.18593
2007 2 4 54135 -0.1026 0.4723 0.18533
2007 2 5 54136 -0.1009 0.4746 0.18466
2007 2 6 54137 -0.0991 0.4769 0.18399
2007 2 7 54138 -0.0973 0.4792 0.18335
2007 2 8 54139 -0.0955 0.4815 0.18279
2007 2 9 54140 -0.0936 0.4837 0.18231
2007 2 10 54141 -0.0916 0.4859 0.18196
2007 2 11 54142 -0.0896 0.4881 0.18180
2007 2 12 54143 -0.0876 0.4903 0.18180
2007 2 13 54144 -0.0855 0.4924 0.18185
2007 2 14 54145 -0.0834 0.4946 0.18189
2007 2 15 54146 -0.0812 0.4967 0.18183
2007 2 16 54147 -0.0790 0.4987 0.18157
2007 2 17 54148 -0.0767 0.5008 0.18103
2007 2 18 54149 -0.0744 0.5028 0.18013
2007 2 19 54150 -0.0721 0.5047 0.17892
2007 2 20 54151 -0.0697 0.5067 0.17764
2007 2 21 54152 -0.0673 0.5086 0.17648
2007 2 22 54153 -0.0649 0.5105 0.17557
2007 2 23 54154 -0.0624 0.5124 0.17498
2007 2 24 54155 -0.0599 0.5142 0.17472
2007 2 25 54156 -0.0573 0.5160 0.17471
2007 2 26 54157 -0.0547 0.5178 0.17479
2007 2 27 54158 -0.0521 0.5195 0.17479
2007 2 28 54159 -0.0495 0.5212 0.17461
2007 3 1 54160 -0.0468 0.5229 0.17419
2007 3 2 54161 -0.0441 0.5245 0.17354
2007 3 3 54162 -0.0413 0.5261 0.17273
2007 3 4 54163 -0.0385 0.5277 0.17172
2007 3 5 54164 -0.0357 0.5292 0.17063
2007 3 6 54165 -0.0329 0.5307 0.16951
2007 3 7 54166 -0.0300 0.5321 0.16839
2007 3 8 54167 -0.0271 0.5335 0.16738
2007 3 9 54168 -0.0242 0.5349 0.16655
2007 3 10 54169 -0.0213 0.5362 0.16589
2007 3 11 54170 -0.0183 0.5375 0.16535
2007 3 12 54171 -0.0153 0.5388 0.16493
2007 3 13 54172 -0.0123 0.5400 0.16454
2007 3 14 54173 -0.0093 0.5412 0.16411
2007 3 15 54174 -0.0062 0.5424 0.16351
2007 3 16 54175 -0.0031 0.5435 0.16267
2007 3 17 54176 -0.0000 0.5445 0.16155
2007 3 18 54177 0.0031 0.5455 0.16012
2007 3 19 54178 0.0062 0.5465 0.15845
2007 3 20 54179 0.0094 0.5474 0.15675
2007 3 21 54180 0.0125 0.5483 0.15521
2007 3 22 54181 0.0157 0.5492 0.15397
2007 3 23 54182 0.0189 0.5500 0.15308
2007 3 24 54183 0.0221 0.5507 0.15246
2007 3 25 54184 0.0253 0.5515 0.15205
2007 3 26 54185 0.0285 0.5521 0.15165
2007 3 27 54186 0.0318 0.5528 0.15112
2007 3 28 54187 0.0350 0.5534 0.15044
2007 3 29 54188 0.0383 0.5539 0.14961
2007 3 30 54189 0.0415 0.5544 0.14866
2007 3 31 54190 0.0448 0.5548 0.14764
2007 4 1 54191 0.0481 0.5552 0.14653
2007 4 2 54192 0.0514 0.5556 0.14542
2007 4 3 54193 0.0547 0.5559 0.14436
2007 4 4 54194 0.0579 0.5562 0.14341
2007 4 5 54195 0.0612 0.5564 0.14263
2007 4 6 54196 0.0645 0.5566 0.14206
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)
53816 -54.23 .29 -5.21 .19
53817 -54.12 .29 -5.22 .19
53818 -54.19 .29 -5.32 .19
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
53770 -57.1 -2.2
53771 -57.2 -2.3
53772 -57.2 -2.5
53773 -57.0 -2.6
53774 -56.6 -2.9
53775 -56.2 -3.1
53776 -55.8 -3.1
53777 -55.7 -3.1
53778 -55.6 -2.9
53779 -55.6 -2.6
53780 -55.6 -2.4
53781 -55.5 -2.3
53782 -55.3 -2.4
53783 -55.2 -2.6
53784 -55.1 -2.9
53785 -55.1 -3.2
53786 -55.3 -3.5
53787 -55.6 -3.7
53788 -55.8 -3.8
53789 -56.0 -3.7
53790 -56.0 -3.7
53791 -55.8 -3.6
53792 -55.6 -3.6
53793 -55.3 -3.6
53794 -55.1 -3.5
53795 -55.1 -3.5
53796 -55.3 -3.4
53797 -55.7 -3.5
53798 -56.0 -3.6
53799 -56.3 -3.9
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53816 0.138 0.115 -0.403 0.190
53817 0.123 0.115 -0.420 0.190
53818 0.106 0.115 -0.469 0.190
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
53770 0.02 -0.30
53771 0.09 -0.37
53772 0.15 -0.40
53773 0.20 -0.28
53774 0.27 -0.44
53775 0.30 -0.53
53776 0.33 -0.41
53777 0.28 -0.33
53778 0.27 -0.22
53779 0.25 -0.20
53780 0.19 -0.30
53781 0.15 -0.35
53782 0.16 -0.43
53783 0.17 -0.54
53784 0.23 -0.71
53785 0.30 -0.76
53786 0.30 -0.66
53787 0.20 -0.50
53788 0.10 -0.50
53789 0.04 -0.52
53790 0.17 -0.52
53791 0.37 -0.17
53792 0.36 0.07
53793 0.24 -0.02
53794 0.12 -0.27
53795 0.10 -0.50
53796 0.13 -0.37
53797 0.12 -0.36
53798 0.16 -0.38
53799 0.17 -0.50
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.
**************************************************************************
Important Notices - Important Notices - Important Notices
**************************************************************************
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
**************************************************************************
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.
**************************************************************************
Important Notice - IAU 2000 Resolution Compliancy Information
**************************************************************************