**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
23 March 2006 Vol. XIX No. 012
______________________________________________________________________
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 17 53811 .08794 .00005 .37909 .00004 .284053 .000010
6 3 18 53812 .08987 .00005 .37883 .00004 .283106 .000013
6 3 19 53813 .09138 .00004 .37850 .00004 .282234 .000013
6 3 20 53814 .09272 .00003 .37812 .00003 .281487 .000009
6 3 21 53815 .09391 .00003 .37784 .00002 .280897 .000008
6 3 22 53816 .09512 .00002 .37768 .00002 .280423 .000008
6 3 23 53817 .09625 .00002 .37755 .00002 .279941 .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 = .0612 - .1623 cos A + .0487 sin A + .1874 cos C - .0164 sin C
y = .3576 + .0410 cos A + .1512 sin A - .0164 cos C - .1874 sin C
UT1-UTC = .2842 - .00041 (MJD - 53822) - (UT2-UT1)
where A = 2*pi*(MJD-53817)/365.25 and C = 2*pi*(MJD-53817)/435.
TAI-UTC(MJD 53818) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53817)**0.80 S t = 0.00025 (MJD-53817)**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 3 24 53818 0.0972 0.3774 0.27932
2006 3 25 53819 0.0981 0.3772 0.27843
2006 3 26 53820 0.0990 0.3770 0.27717
2006 3 27 53821 0.0997 0.3769 0.27554
2006 3 28 53822 0.1005 0.3767 0.27361
2006 3 29 53823 0.1011 0.3765 0.27154
2006 3 30 53824 0.1018 0.3763 0.26954
2006 3 31 53825 0.1024 0.3760 0.26782
2006 4 1 53826 0.1030 0.3758 0.26650
2006 4 2 53827 0.1036 0.3756 0.26557
2006 4 3 53828 0.1042 0.3753 0.26498
2006 4 4 53829 0.1047 0.3751 0.26459
2006 4 5 53830 0.1053 0.3748 0.26428
2006 4 6 53831 0.1058 0.3746 0.26395
2006 4 7 53832 0.1063 0.3743 0.26350
2006 4 8 53833 0.1068 0.3740 0.26285
2006 4 9 53834 0.1073 0.3737 0.26198
2006 4 10 53835 0.1078 0.3734 0.26090
2006 4 11 53836 0.1083 0.3731 0.25966
2006 4 12 53837 0.1088 0.3728 0.25833
2006 4 13 53838 0.1093 0.3725 0.25700
2006 4 14 53839 0.1098 0.3721 0.25575
2006 4 15 53840 0.1103 0.3718 0.25463
2006 4 16 53841 0.1108 0.3714 0.25370
2006 4 17 53842 0.1113 0.3711 0.25295
2006 4 18 53843 0.1118 0.3707 0.25238
2006 4 19 53844 0.1122 0.3703 0.25190
2006 4 20 53845 0.1127 0.3699 0.25139
2006 4 21 53846 0.1132 0.3695 0.25074
2006 4 22 53847 0.1137 0.3691 0.24983
2006 4 23 53848 0.1141 0.3687 0.24862
2006 4 24 53849 0.1146 0.3682 0.24709
2006 4 25 53850 0.1150 0.3678 0.24537
2006 4 26 53851 0.1155 0.3673 0.24361
2006 4 27 53852 0.1159 0.3668 0.24197
2006 4 28 53853 0.1164 0.3664 0.24060
2006 4 29 53854 0.1168 0.3659 0.23957
2006 4 30 53855 0.1172 0.3654 0.23886
2006 5 1 53856 0.1177 0.3649 0.23840
2006 5 2 53857 0.1181 0.3643 0.23807
2006 5 3 53858 0.1185 0.3638 0.23776
2006 5 4 53859 0.1189 0.3633 0.23739
2006 5 5 53860 0.1193 0.3627 0.23690
2006 5 6 53861 0.1197 0.3621 0.23626
2006 5 7 53862 0.1201 0.3616 0.23549
2006 5 8 53863 0.1205 0.3610 0.23461
2006 5 9 53864 0.1208 0.3604 0.23367
2006 5 10 53865 0.1212 0.3598 0.23273
2006 5 11 53866 0.1216 0.3591 0.23186
2006 5 12 53867 0.1219 0.3585 0.23113
2006 5 13 53868 0.1222 0.3579 0.23059
2006 5 14 53869 0.1226 0.3572 0.23025
2006 5 15 53870 0.1229 0.3565 0.23010
2006 5 16 53871 0.1232 0.3559 0.23008
2006 5 17 53872 0.1235 0.3552 0.23008
2006 5 18 53873 0.1238 0.3545 0.22999
2006 5 19 53874 0.1241 0.3538 0.22970
2006 5 20 53875 0.1244 0.3530 0.22915
2006 5 21 53876 0.1247 0.3523 0.22835
2006 5 22 53877 0.1250 0.3516 0.22736
2006 5 23 53878 0.1252 0.3508 0.22631
2006 5 24 53879 0.1255 0.3500 0.22535
2006 5 25 53880 0.1257 0.3493 0.22461
2006 5 26 53881 0.1260 0.3485 0.22419
2006 5 27 53882 0.1262 0.3477 0.22408
2006 5 28 53883 0.1264 0.3469 0.22423
2006 5 29 53884 0.1266 0.3460 0.22454
2006 5 30 53885 0.1268 0.3452 0.22489
2006 5 31 53886 0.1270 0.3444 0.22518
2006 6 1 53887 0.1272 0.3435 0.22536
2006 6 2 53888 0.1274 0.3426 0.22539
2006 6 3 53889 0.1275 0.3418 0.22527
2006 6 4 53890 0.1277 0.3409 0.22502
2006 6 5 53891 0.1278 0.3400 0.22469
2006 6 6 53892 0.1279 0.3391 0.22435
2006 6 7 53893 0.1281 0.3381 0.22405
2006 6 8 53894 0.1282 0.3372 0.22387
2006 6 9 53895 0.1283 0.3363 0.22386
2006 6 10 53896 0.1284 0.3353 0.22406
2006 6 11 53897 0.1284 0.3344 0.22446
2006 6 12 53898 0.1285 0.3334 0.22501
2006 6 13 53899 0.1286 0.3324 0.22562
2006 6 14 53900 0.1286 0.3314 0.22617
2006 6 15 53901 0.1286 0.3304 0.22653
2006 6 16 53902 0.1286 0.3294 0.22663
2006 6 17 53903 0.1286 0.3284 0.22648
2006 6 18 53904 0.1286 0.3274 0.22612
2006 6 19 53905 0.1286 0.3264 0.22569
2006 6 20 53906 0.1286 0.3253 0.22533
2006 6 21 53907 0.1286 0.3243 0.22517
2006 6 22 53908 0.1285 0.3232 0.22528
2006 6 23 53909 0.1284 0.3222 0.22569
2006 6 24 53910 0.1283 0.3211 0.22637
2006 6 25 53911 0.1283 0.3200 0.22722
2006 6 26 53912 0.1281 0.3189 0.22814
2006 6 27 53913 0.1280 0.3178 0.22903
2006 6 28 53914 0.1279 0.3167 0.22982
2006 6 29 53915 0.1277 0.3156 0.23045
2006 6 30 53916 0.1276 0.3145 0.23091
2006 7 1 53917 0.1274 0.3134 0.23123
2006 7 2 53918 0.1272 0.3123 0.23145
2006 7 3 53919 0.1270 0.3112 0.23162
2006 7 4 53920 0.1268 0.3100 0.23181
2006 7 5 53921 0.1265 0.3089 0.23208
2006 7 6 53922 0.1263 0.3077 0.23248
2006 7 7 53923 0.1260 0.3066 0.23302
2006 7 8 53924 0.1257 0.3055 0.23375
2006 7 9 53925 0.1254 0.3043 0.23463
2006 7 10 53926 0.1251 0.3032 0.23559
2006 7 11 53927 0.1248 0.3020 0.23652
2006 7 12 53928 0.1244 0.3008 0.23726
2006 7 13 53929 0.1241 0.2997 0.23774
2006 7 14 53930 0.1237 0.2985 0.23790
2006 7 15 53931 0.1233 0.2973 0.23781
2006 7 16 53932 0.1229 0.2962 0.23760
2006 7 17 53933 0.1224 0.2950 0.23743
2006 7 18 53934 0.1220 0.2939 0.23743
2006 7 19 53935 0.1215 0.2927 0.23770
2006 7 20 53936 0.1210 0.2915 0.23826
2006 7 21 53937 0.1205 0.2904 0.23908
2006 7 22 53938 0.1199 0.2892 0.24007
2006 7 23 53939 0.1194 0.2880 0.24113
2006 7 24 53940 0.1188 0.2869 0.24217
2006 7 25 53941 0.1182 0.2857 0.24309
2006 7 26 53942 0.1176 0.2846 0.24386
2006 7 27 53943 0.1170 0.2834 0.24445
2006 7 28 53944 0.1163 0.2823 0.24487
2006 7 29 53945 0.1157 0.2811 0.24516
2006 7 30 53946 0.1150 0.2800 0.24538
2006 7 31 53947 0.1142 0.2789 0.24559
2006 8 1 53948 0.1135 0.2777 0.24586
2006 8 2 53949 0.1128 0.2766 0.24624
2006 8 3 53950 0.1120 0.2755 0.24677
2006 8 4 53951 0.1112 0.2744 0.24747
2006 8 5 53952 0.1103 0.2733 0.24831
2006 8 6 53953 0.1095 0.2722 0.24925
2006 8 7 53954 0.1086 0.2711 0.25017
2006 8 8 53955 0.1077 0.2701 0.25094
2006 8 9 53956 0.1068 0.2690 0.25144
2006 8 10 53957 0.1059 0.2680 0.25159
2006 8 11 53958 0.1049 0.2669 0.25142
2006 8 12 53959 0.1039 0.2659 0.25103
2006 8 13 53960 0.1029 0.2649 0.25059
2006 8 14 53961 0.1019 0.2639 0.25030
2006 8 15 53962 0.1008 0.2629 0.25027
2006 8 16 53963 0.0998 0.2619 0.25054
2006 8 17 53964 0.0986 0.2609 0.25110
2006 8 18 53965 0.0975 0.2600 0.25184
2006 8 19 53966 0.0964 0.2590 0.25267
2006 8 20 53967 0.0952 0.2581 0.25348
2006 8 21 53968 0.0940 0.2572 0.25419
2006 8 22 53969 0.0928 0.2563 0.25473
2006 8 23 53970 0.0915 0.2554 0.25509
2006 8 24 53971 0.0902 0.2546 0.25526
2006 8 25 53972 0.0889 0.2537 0.25528
2006 8 26 53973 0.0876 0.2529 0.25521
2006 8 27 53974 0.0863 0.2521 0.25510
2006 8 28 53975 0.0849 0.2513 0.25503
2006 8 29 53976 0.0835 0.2505 0.25505
2006 8 30 53977 0.0821 0.2498 0.25521
2006 8 31 53978 0.0806 0.2490 0.25552
2006 9 1 53979 0.0792 0.2483 0.25598
2006 9 2 53980 0.0777 0.2477 0.25654
2006 9 3 53981 0.0761 0.2470 0.25712
2006 9 4 53982 0.0746 0.2463 0.25761
2006 9 5 53983 0.0730 0.2457 0.25786
2006 9 6 53984 0.0714 0.2451 0.25779
2006 9 7 53985 0.0698 0.2445 0.25734
2006 9 8 53986 0.0682 0.2440 0.25659
2006 9 9 53987 0.0665 0.2435 0.25569
2006 9 10 53988 0.0649 0.2430 0.25484
2006 9 11 53989 0.0632 0.2425 0.25422
2006 9 12 53990 0.0614 0.2420 0.25392
2006 9 13 53991 0.0597 0.2416 0.25395
2006 9 14 53992 0.0579 0.2412 0.25423
2006 9 15 53993 0.0561 0.2408 0.25464
2006 9 16 53994 0.0543 0.2405 0.25506
2006 9 17 53995 0.0525 0.2402 0.25540
2006 9 18 53996 0.0506 0.2399 0.25560
2006 9 19 53997 0.0487 0.2396 0.25563
2006 9 20 53998 0.0468 0.2394 0.25549
2006 9 21 53999 0.0449 0.2392 0.25520
2006 9 22 54000 0.0430 0.2390 0.25482
2006 9 23 54001 0.0410 0.2389 0.25441
2006 9 24 54002 0.0390 0.2387 0.25405
2006 9 25 54003 0.0370 0.2387 0.25380
2006 9 26 54004 0.0350 0.2386 0.25371
2006 9 27 54005 0.0330 0.2386 0.25379
2006 9 28 54006 0.0310 0.2386 0.25403
2006 9 29 54007 0.0289 0.2386 0.25438
2006 9 30 54008 0.0269 0.2387 0.25478
2006 10 1 54009 0.0249 0.2388 0.25511
2006 10 2 54010 0.0228 0.2389 0.25526
2006 10 3 54011 0.0208 0.2390 0.25509
2006 10 4 54012 0.0187 0.2392 0.25454
2006 10 5 54013 0.0166 0.2394 0.25360
2006 10 6 54014 0.0145 0.2397 0.25239
2006 10 7 54015 0.0124 0.2400 0.25108
2006 10 8 54016 0.0103 0.2403 0.24987
2006 10 9 54017 0.0082 0.2406 0.24890
2006 10 10 54018 0.0060 0.2410 0.24825
2006 10 11 54019 0.0039 0.2414 0.24788
2006 10 12 54020 0.0017 0.2419 0.24771
2006 10 13 54021 -0.0005 0.2424 0.24760
2006 10 14 54022 -0.0026 0.2429 0.24745
2006 10 15 54023 -0.0048 0.2435 0.24719
2006 10 16 54024 -0.0070 0.2441 0.24678
2006 10 17 54025 -0.0092 0.2447 0.24621
2006 10 18 54026 -0.0114 0.2453 0.24553
2006 10 19 54027 -0.0136 0.2460 0.24479
2006 10 20 54028 -0.0158 0.2468 0.24404
2006 10 21 54029 -0.0180 0.2475 0.24336
2006 10 22 54030 -0.0202 0.2483 0.24282
2006 10 23 54031 -0.0224 0.2492 0.24246
2006 10 24 54032 -0.0246 0.2500 0.24230
2006 10 25 54033 -0.0268 0.2509 0.24230
2006 10 26 54034 -0.0289 0.2519 0.24238
2006 10 27 54035 -0.0311 0.2528 0.24246
2006 10 28 54036 -0.0333 0.2539 0.24246
2006 10 29 54037 -0.0355 0.2549 0.24228
2006 10 30 54038 -0.0377 0.2560 0.24186
2006 10 31 54039 -0.0399 0.2571 0.24115
2006 11 1 54040 -0.0420 0.2582 0.24007
2006 11 2 54041 -0.0442 0.2594 0.23866
2006 11 3 54042 -0.0463 0.2606 0.23713
2006 11 4 54043 -0.0485 0.2619 0.23568
2006 11 5 54044 -0.0506 0.2632 0.23445
2006 11 6 54045 -0.0527 0.2645 0.23350
2006 11 7 54046 -0.0548 0.2658 0.23276
2006 11 8 54047 -0.0569 0.2672 0.23231
2006 11 9 54048 -0.0590 0.2686 0.23198
2006 11 10 54049 -0.0610 0.2701 0.23157
2006 11 11 54050 -0.0631 0.2715 0.23102
2006 11 12 54051 -0.0651 0.2730 0.23029
2006 11 13 54052 -0.0671 0.2746 0.22935
2006 11 14 54053 -0.0691 0.2762 0.22825
2006 11 15 54054 -0.0710 0.2778 0.22708
2006 11 16 54055 -0.0730 0.2794 0.22590
2006 11 17 54056 -0.0749 0.2811 0.22478
2006 11 18 54057 -0.0768 0.2828 0.22377
2006 11 19 54058 -0.0787 0.2845 0.22291
2006 11 20 54059 -0.0805 0.2863 0.22219
2006 11 21 54060 -0.0824 0.2880 0.22159
2006 11 22 54061 -0.0842 0.2899 0.22111
2006 11 23 54062 -0.0859 0.2917 0.22075
2006 11 24 54063 -0.0877 0.2936 0.22043
2006 11 25 54064 -0.0894 0.2955 0.22000
2006 11 26 54065 -0.0911 0.2974 0.21944
2006 11 27 54066 -0.0928 0.2994 0.21863
2006 11 28 54067 -0.0944 0.3013 0.21759
2006 11 29 54068 -0.0960 0.3033 0.21635
2006 11 30 54069 -0.0976 0.3054 0.21501
2006 12 1 54070 -0.0991 0.3074 0.21376
2006 12 2 54071 -0.1006 0.3095 0.21272
2006 12 3 54072 -0.1021 0.3116 0.21203
2006 12 4 54073 -0.1035 0.3137 0.21161
2006 12 5 54074 -0.1049 0.3159 0.21146
2006 12 6 54075 -0.1062 0.3181 0.21151
2006 12 7 54076 -0.1076 0.3203 0.21160
2006 12 8 54077 -0.1088 0.3225 0.21159
2006 12 9 54078 -0.1101 0.3247 0.21146
2006 12 10 54079 -0.1113 0.3270 0.21114
2006 12 11 54080 -0.1125 0.3293 0.21064
2006 12 12 54081 -0.1136 0.3316 0.21001
2006 12 13 54082 -0.1147 0.3339 0.20932
2006 12 14 54083 -0.1157 0.3362 0.20865
2006 12 15 54084 -0.1167 0.3386 0.20808
2006 12 16 54085 -0.1176 0.3409 0.20761
2006 12 17 54086 -0.1186 0.3433 0.20728
2006 12 18 54087 -0.1194 0.3457 0.20719
2006 12 19 54088 -0.1202 0.3481 0.20732
2006 12 20 54089 -0.1210 0.3505 0.20761
2006 12 21 54090 -0.1217 0.3530 0.20796
2006 12 22 54091 -0.1224 0.3554 0.20822
2006 12 23 54092 -0.1231 0.3579 0.20825
2006 12 24 54093 -0.1236 0.3604 0.20803
2006 12 25 54094 -0.1242 0.3629 0.20751
2006 12 26 54095 -0.1247 0.3654 0.20676
2006 12 27 54096 -0.1251 0.3679 0.20582
2006 12 28 54097 -0.1255 0.3704 0.20480
2006 12 29 54098 -0.1259 0.3729 0.20383
2006 12 30 54099 -0.1262 0.3755 0.20310
2006 12 31 54100 -0.1264 0.3780 0.20266
2007 1 1 54101 -0.1266 0.3806 0.20251
2007 1 2 54102 -0.1268 0.3831 0.20257
2007 1 3 54103 -0.1269 0.3857 0.20271
2007 1 4 54104 -0.1269 0.3882 0.20280
2007 1 5 54105 -0.1269 0.3908 0.20276
2007 1 6 54106 -0.1269 0.3934 0.20252
2007 1 7 54107 -0.1267 0.3959 0.20212
2007 1 8 54108 -0.1266 0.3985 0.20164
2007 1 9 54109 -0.1264 0.4011 0.20112
2007 1 10 54110 -0.1261 0.4037 0.20060
2007 1 11 54111 -0.1258 0.4062 0.20012
2007 1 12 54112 -0.1255 0.4088 0.19969
2007 1 13 54113 -0.1250 0.4114 0.19937
2007 1 14 54114 -0.1246 0.4140 0.19924
2007 1 15 54115 -0.1241 0.4165 0.19931
2007 1 16 54116 -0.1235 0.4191 0.19946
2007 1 17 54117 -0.1229 0.4216 0.19968
2007 1 18 54118 -0.1222 0.4242 0.19988
2007 1 19 54119 -0.1215 0.4267 0.19996
2007 1 20 54120 -0.1207 0.4293 0.19983
2007 1 21 54121 -0.1199 0.4318 0.19936
2007 1 22 54122 -0.1190 0.4343 0.19858
2007 1 23 54123 -0.1181 0.4368 0.19765
2007 1 24 54124 -0.1171 0.4394 0.19674
2007 1 25 54125 -0.1161 0.4418 0.19597
2007 1 26 54126 -0.1150 0.4443 0.19545
2007 1 27 54127 -0.1139 0.4468 0.19524
2007 1 28 54128 -0.1127 0.4493 0.19531
2007 1 29 54129 -0.1115 0.4517 0.19555
2007 1 30 54130 -0.1102 0.4541 0.19579
2007 1 31 54131 -0.1089 0.4566 0.19593
2007 2 1 54132 -0.1076 0.4590 0.19589
2007 2 2 54133 -0.1061 0.4614 0.19562
2007 2 3 54134 -0.1047 0.4637 0.19518
2007 2 4 54135 -0.1032 0.4661 0.19451
2007 2 5 54136 -0.1016 0.4684 0.19372
2007 2 6 54137 -0.1000 0.4707 0.19286
2007 2 7 54138 -0.0984 0.4730 0.19195
2007 2 8 54139 -0.0967 0.4753 0.19111
2007 2 9 54140 -0.0949 0.4776 0.19041
2007 2 10 54141 -0.0932 0.4798 0.18988
2007 2 11 54142 -0.0913 0.4820 0.18947
2007 2 12 54143 -0.0895 0.4842 0.18922
2007 2 13 54144 -0.0876 0.4864 0.18905
2007 2 14 54145 -0.0856 0.4886 0.18890
2007 2 15 54146 -0.0836 0.4907 0.18865
2007 2 16 54147 -0.0816 0.4928 0.18820
2007 2 17 54148 -0.0795 0.4949 0.18750
2007 2 18 54149 -0.0774 0.4969 0.18647
2007 2 19 54150 -0.0752 0.4989 0.18516
2007 2 20 54151 -0.0730 0.5009 0.18372
2007 2 21 54152 -0.0708 0.5029 0.18235
2007 2 22 54153 -0.0685 0.5049 0.18120
2007 2 23 54154 -0.0662 0.5068 0.18035
2007 2 24 54155 -0.0639 0.5087 0.17979
2007 2 25 54156 -0.0615 0.5105 0.17949
2007 2 26 54157 -0.0591 0.5123 0.17927
2007 2 27 54158 -0.0566 0.5141 0.17900
2007 2 28 54159 -0.0542 0.5159 0.17861
2007 3 1 54160 -0.0516 0.5176 0.17809
2007 3 2 54161 -0.0491 0.5193 0.17742
2007 3 3 54162 -0.0465 0.5210 0.17664
2007 3 4 54163 -0.0439 0.5226 0.17572
2007 3 5 54164 -0.0413 0.5242 0.17474
2007 3 6 54165 -0.0386 0.5258 0.17374
2007 3 7 54166 -0.0359 0.5273 0.17281
2007 3 8 54167 -0.0332 0.5288 0.17201
2007 3 9 54168 -0.0304 0.5303 0.17139
2007 3 10 54169 -0.0277 0.5317 0.17100
2007 3 11 54170 -0.0249 0.5331 0.17083
2007 3 12 54171 -0.0220 0.5344 0.17085
2007 3 13 54172 -0.0192 0.5358 0.17104
2007 3 14 54173 -0.0163 0.5370 0.17119
2007 3 15 54174 -0.0134 0.5383 0.17119
2007 3 16 54175 -0.0105 0.5395 0.17083
2007 3 17 54176 -0.0076 0.5406 0.17011
2007 3 18 54177 -0.0046 0.5417 0.16913
2007 3 19 54178 -0.0016 0.5428 0.16799
2007 3 20 54179 0.0014 0.5439 0.16680
2007 3 21 54180 0.0044 0.5449 0.16571
2007 3 22 54181 0.0074 0.5458 0.16495
2007 3 23 54182 0.0105 0.5467 0.16457
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)
53798 -56.20 .10 -3.66 .34
53799 -56.49 .19 -3.83 .34
53800 -56.50 .19 -4.19 .34
53801 -56.25 .27 -4.59 .34
53802 -55.90 .22 -4.81 .34
53803 -55.58 .22 -4.82 .34
53804 -55.27 .22 -4.77 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53798 0.083 0.040 -0.441 0.340
53799 0.090 0.076 -0.431 0.340
53800 0.096 0.076 -0.418 0.340
53801 0.100 0.107 -0.415 0.340
53802 0.117 0.088 -0.428 0.340
53803 0.139 0.088 -0.442 0.340
53804 0.158 0.088 -0.453 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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