**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
15 June 2006 Vol. XIX No. 024
______________________________________________________________________
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 9 53895 .12338 .00003 .32578 .00005 .199572 .000010
6 6 10 53896 .12345 .00003 .32450 .00005 .199483 .000010
6 6 11 53897 .12361 .00002 .32301 .00005 .199642 .000011
6 6 12 53898 .12394 .00001 .32127 .00004 .199987 .000016
6 6 13 53899 .12444 .00001 .31954 .00003 .200395 .000017
6 6 14 53900 .12509 .00001 .31810 .00003 .200700 .000017
6 6 15 53901 .12583 .00001 .31685 .00003 .200719 .000016
_______________________________________________________________________
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 = .0533 + .0364 cos A + .1614 sin A + .0386 cos C - .1859 sin C
y = .3557 + .1508 cos A - .0324 sin A - .1859 cos C - .0386 sin C
UT1-UTC = .2084 - .00049 (MJD - 53906) - (UT2-UT1)
where A = 2*pi*(MJD-53901)/365.25 and C = 2*pi*(MJD-53901)/435.
TAI-UTC(MJD 53902) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53901)**0.80 S t = 0.00025 (MJD-53901)**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 16 53902 0.1265 0.3157 0.20035
2006 6 17 53903 0.1271 0.3145 0.19968
2006 6 18 53904 0.1275 0.3134 0.19879
2006 6 19 53905 0.1279 0.3124 0.19781
2006 6 20 53906 0.1282 0.3113 0.19687
2006 6 21 53907 0.1284 0.3103 0.19614
2006 6 22 53908 0.1285 0.3093 0.19570
2006 6 23 53909 0.1285 0.3082 0.19560
2006 6 24 53910 0.1285 0.3072 0.19586
2006 6 25 53911 0.1284 0.3062 0.19634
2006 6 26 53912 0.1283 0.3052 0.19691
2006 6 27 53913 0.1281 0.3041 0.19741
2006 6 28 53914 0.1279 0.3031 0.19778
2006 6 29 53915 0.1277 0.3021 0.19796
2006 6 30 53916 0.1274 0.3010 0.19795
2006 7 1 53917 0.1270 0.3000 0.19778
2006 7 2 53918 0.1267 0.2989 0.19750
2006 7 3 53919 0.1263 0.2979 0.19714
2006 7 4 53920 0.1259 0.2968 0.19677
2006 7 5 53921 0.1254 0.2958 0.19648
2006 7 6 53922 0.1250 0.2947 0.19632
2006 7 7 53923 0.1245 0.2937 0.19631
2006 7 8 53924 0.1240 0.2926 0.19646
2006 7 9 53925 0.1234 0.2915 0.19674
2006 7 10 53926 0.1229 0.2905 0.19707
2006 7 11 53927 0.1223 0.2894 0.19735
2006 7 12 53928 0.1217 0.2883 0.19746
2006 7 13 53929 0.1211 0.2873 0.19729
2006 7 14 53930 0.1205 0.2862 0.19682
2006 7 15 53931 0.1199 0.2851 0.19609
2006 7 16 53932 0.1192 0.2841 0.19525
2006 7 17 53933 0.1186 0.2830 0.19445
2006 7 18 53934 0.1179 0.2820 0.19384
2006 7 19 53935 0.1172 0.2809 0.19352
2006 7 20 53936 0.1165 0.2799 0.19352
2006 7 21 53937 0.1157 0.2788 0.19379
2006 7 22 53938 0.1150 0.2778 0.19427
2006 7 23 53939 0.1142 0.2767 0.19484
2006 7 24 53940 0.1135 0.2757 0.19541
2006 7 25 53941 0.1127 0.2747 0.19590
2006 7 26 53942 0.1119 0.2736 0.19624
2006 7 27 53943 0.1111 0.2726 0.19642
2006 7 28 53944 0.1102 0.2716 0.19644
2006 7 29 53945 0.1094 0.2706 0.19635
2006 7 30 53946 0.1085 0.2696 0.19619
2006 7 31 53947 0.1076 0.2686 0.19603
2006 8 1 53948 0.1067 0.2676 0.19592
2006 8 2 53949 0.1058 0.2666 0.19594
2006 8 3 53950 0.1048 0.2657 0.19610
2006 8 4 53951 0.1039 0.2647 0.19644
2006 8 5 53952 0.1029 0.2638 0.19695
2006 8 6 53953 0.1019 0.2628 0.19756
2006 8 7 53954 0.1009 0.2619 0.19818
2006 8 8 53955 0.0999 0.2610 0.19867
2006 8 9 53956 0.0989 0.2601 0.19890
2006 8 10 53957 0.0978 0.2592 0.19879
2006 8 11 53958 0.0967 0.2583 0.19837
2006 8 12 53959 0.0956 0.2574 0.19774
2006 8 13 53960 0.0945 0.2566 0.19706
2006 8 14 53961 0.0934 0.2557 0.19651
2006 8 15 53962 0.0922 0.2549 0.19623
2006 8 16 53963 0.0910 0.2541 0.19625
2006 8 17 53964 0.0898 0.2533 0.19655
2006 8 18 53965 0.0886 0.2525 0.19705
2006 8 19 53966 0.0874 0.2517 0.19763
2006 8 20 53967 0.0861 0.2510 0.19820
2006 8 21 53968 0.0848 0.2502 0.19866
2006 8 22 53969 0.0835 0.2495 0.19896
2006 8 23 53970 0.0822 0.2488 0.19907
2006 8 24 53971 0.0809 0.2481 0.19899
2006 8 25 53972 0.0795 0.2474 0.19875
2006 8 26 53973 0.0781 0.2468 0.19841
2006 8 27 53974 0.0767 0.2461 0.19804
2006 8 28 53975 0.0753 0.2455 0.19769
2006 8 29 53976 0.0739 0.2449 0.19744
2006 8 30 53977 0.0724 0.2444 0.19732
2006 8 31 53978 0.0709 0.2438 0.19735
2006 9 1 53979 0.0694 0.2433 0.19752
2006 9 2 53980 0.0679 0.2428 0.19780
2006 9 3 53981 0.0664 0.2423 0.19810
2006 9 4 53982 0.0648 0.2418 0.19831
2006 9 5 53983 0.0632 0.2413 0.19829
2006 9 6 53984 0.0616 0.2409 0.19795
2006 9 7 53985 0.0600 0.2405 0.19725
2006 9 8 53986 0.0583 0.2401 0.19624
2006 9 9 53987 0.0567 0.2398 0.19510
2006 9 10 53988 0.0550 0.2395 0.19401
2006 9 11 53989 0.0533 0.2392 0.19315
2006 9 12 53990 0.0514 0.2389 0.19261
2006 9 13 53991 0.0497 0.2386 0.19241
2006 9 14 53992 0.0479 0.2384 0.19245
2006 9 15 53993 0.0461 0.2382 0.19263
2006 9 16 53994 0.0443 0.2380 0.19281
2006 9 17 53995 0.0425 0.2379 0.19290
2006 9 18 53996 0.0407 0.2378 0.19284
2006 9 19 53997 0.0389 0.2377 0.19259
2006 9 20 53998 0.0370 0.2376 0.19216
2006 9 21 53999 0.0351 0.2376 0.19156
2006 9 22 54000 0.0332 0.2376 0.19085
2006 9 23 54001 0.0313 0.2376 0.19009
2006 9 24 54002 0.0294 0.2377 0.18936
2006 9 25 54003 0.0274 0.2378 0.18872
2006 9 26 54004 0.0254 0.2379 0.18821
2006 9 27 54005 0.0235 0.2380 0.18787
2006 9 28 54006 0.0215 0.2382 0.18769
2006 9 29 54007 0.0195 0.2384 0.18753
2006 9 30 54008 0.0174 0.2386 0.18742
2006 10 1 54009 0.0154 0.2389 0.18727
2006 10 2 54010 0.0134 0.2392 0.18695
2006 10 3 54011 0.0113 0.2395 0.18634
2006 10 4 54012 0.0092 0.2399 0.18539
2006 10 5 54013 0.0072 0.2403 0.18410
2006 10 6 54014 0.0051 0.2407 0.18257
2006 10 7 54015 0.0030 0.2412 0.18099
2006 10 8 54016 0.0009 0.2417 0.17954
2006 10 9 54017 -0.0012 0.2422 0.17838
2006 10 10 54018 -0.0034 0.2428 0.17757
2006 10 11 54019 -0.0055 0.2434 0.17706
2006 10 12 54020 -0.0076 0.2440 0.17675
2006 10 13 54021 -0.0098 0.2446 0.17650
2006 10 14 54022 -0.0119 0.2453 0.17620
2006 10 15 54023 -0.0141 0.2461 0.17577
2006 10 16 54024 -0.0162 0.2468 0.17518
2006 10 17 54025 -0.0184 0.2476 0.17441
2006 10 18 54026 -0.0205 0.2484 0.17349
2006 10 19 54027 -0.0227 0.2493 0.17245
2006 10 20 54028 -0.0249 0.2502 0.17136
2006 10 21 54029 -0.0270 0.2511 0.17028
2006 10 22 54030 -0.0292 0.2521 0.16928
2006 10 23 54031 -0.0313 0.2531 0.16842
2006 10 24 54032 -0.0335 0.2541 0.16773
2006 10 25 54033 -0.0357 0.2552 0.16722
2006 10 26 54034 -0.0378 0.2563 0.16685
2006 10 27 54035 -0.0399 0.2574 0.16657
2006 10 28 54036 -0.0421 0.2586 0.16629
2006 10 29 54037 -0.0442 0.2598 0.16590
2006 10 30 54038 -0.0463 0.2610 0.16529
2006 10 31 54039 -0.0485 0.2623 0.16439
2006 11 1 54040 -0.0506 0.2636 0.16318
2006 11 2 54041 -0.0527 0.2649 0.16171
2006 11 3 54042 -0.0547 0.2663 0.16012
2006 11 4 54043 -0.0568 0.2677 0.15858
2006 11 5 54044 -0.0589 0.2691 0.15727
2006 11 6 54045 -0.0609 0.2706 0.15628
2006 11 7 54046 -0.0630 0.2721 0.15562
2006 11 8 54047 -0.0650 0.2736 0.15522
2006 11 9 54048 -0.0670 0.2752 0.15496
2006 11 10 54049 -0.0690 0.2768 0.15470
2006 11 11 54050 -0.0710 0.2784 0.15435
2006 11 12 54051 -0.0729 0.2800 0.15385
2006 11 13 54052 -0.0748 0.2817 0.15318
2006 11 14 54053 -0.0767 0.2834 0.15237
2006 11 15 54054 -0.0786 0.2852 0.15145
2006 11 16 54055 -0.0805 0.2870 0.15048
2006 11 17 54056 -0.0824 0.2888 0.14952
2006 11 18 54057 -0.0842 0.2906 0.14863
2006 11 19 54058 -0.0860 0.2925 0.14788
2006 11 20 54059 -0.0877 0.2943 0.14729
2006 11 21 54060 -0.0895 0.2963 0.14690
2006 11 22 54061 -0.0912 0.2982 0.14667
2006 11 23 54062 -0.0929 0.3002 0.14655
2006 11 24 54063 -0.0946 0.3022 0.14647
2006 11 25 54064 -0.0962 0.3042 0.14630
2006 11 26 54065 -0.0978 0.3063 0.14596
2006 11 27 54066 -0.0994 0.3083 0.14537
2006 11 28 54067 -0.1009 0.3104 0.14449
2006 11 29 54068 -0.1024 0.3126 0.14338
2006 11 30 54069 -0.1039 0.3147 0.14212
2006 12 1 54070 -0.1053 0.3169 0.14087
2006 12 2 54071 -0.1067 0.3191 0.13976
2006 12 3 54072 -0.1081 0.3213 0.13892
2006 12 4 54073 -0.1094 0.3236 0.13839
2006 12 5 54074 -0.1107 0.3258 0.13813
2006 12 6 54075 -0.1119 0.3281 0.13803
2006 12 7 54076 -0.1131 0.3304 0.13798
2006 12 8 54077 -0.1143 0.3327 0.13785
2006 12 9 54078 -0.1154 0.3351 0.13757
2006 12 10 54079 -0.1165 0.3374 0.13711
2006 12 11 54080 -0.1176 0.3398 0.13648
2006 12 12 54081 -0.1186 0.3422 0.13571
2006 12 13 54082 -0.1196 0.3446 0.13485
2006 12 14 54083 -0.1205 0.3471 0.13396
2006 12 15 54084 -0.1214 0.3495 0.13311
2006 12 16 54085 -0.1222 0.3520 0.13235
2006 12 17 54086 -0.1230 0.3544 0.13172
2006 12 18 54087 -0.1237 0.3569 0.13127
2006 12 19 54088 -0.1244 0.3594 0.13100
2006 12 20 54089 -0.1251 0.3619 0.13087
2006 12 21 54090 -0.1257 0.3645 0.13084
2006 12 22 54091 -0.1262 0.3670 0.13080
2006 12 23 54092 -0.1267 0.3695 0.13065
2006 12 24 54093 -0.1271 0.3721 0.13030
2006 12 25 54094 -0.1275 0.3746 0.12970
2006 12 26 54095 -0.1278 0.3772 0.12888
2006 12 27 54096 -0.1281 0.3797 0.12791
2006 12 28 54097 -0.1284 0.3823 0.12692
2006 12 29 54098 -0.1285 0.3849 0.12605
2006 12 30 54099 -0.1287 0.3875 0.12542
2006 12 31 54100 -0.1288 0.3900 0.12510
2007 1 1 54101 -0.1288 0.3926 0.12507
2007 1 2 54102 -0.1288 0.3952 0.12526
2007 1 3 54103 -0.1287 0.3978 0.12555
2007 1 4 54104 -0.1286 0.4004 0.12583
2007 1 5 54105 -0.1284 0.4030 0.12600
2007 1 6 54106 -0.1282 0.4056 0.12598
2007 1 7 54107 -0.1279 0.4082 0.12577
2007 1 8 54108 -0.1275 0.4108 0.12538
2007 1 9 54109 -0.1271 0.4134 0.12488
2007 1 10 54110 -0.1267 0.4160 0.12433
2007 1 11 54111 -0.1262 0.4185 0.12380
2007 1 12 54112 -0.1257 0.4211 0.12335
2007 1 13 54113 -0.1251 0.4237 0.12301
2007 1 14 54114 -0.1244 0.4263 0.12282
2007 1 15 54115 -0.1237 0.4288 0.12277
2007 1 16 54116 -0.1230 0.4314 0.12284
2007 1 17 54117 -0.1222 0.4339 0.12295
2007 1 18 54118 -0.1213 0.4365 0.12303
2007 1 19 54119 -0.1204 0.4390 0.12300
2007 1 20 54120 -0.1194 0.4415 0.12277
2007 1 21 54121 -0.1184 0.4440 0.12221
2007 1 22 54122 -0.1173 0.4465 0.12135
2007 1 23 54123 -0.1162 0.4490 0.12032
2007 1 24 54124 -0.1151 0.4515 0.11922
2007 1 25 54125 -0.1138 0.4539 0.11823
2007 1 26 54126 -0.1126 0.4564 0.11749
2007 1 27 54127 -0.1112 0.4588 0.11702
2007 1 28 54128 -0.1099 0.4612 0.11684
2007 1 29 54129 -0.1085 0.4636 0.11690
2007 1 30 54130 -0.1070 0.4659 0.11717
2007 1 31 54131 -0.1055 0.4683 0.11744
2007 2 1 54132 -0.1039 0.4706 0.11760
2007 2 2 54133 -0.1023 0.4730 0.11756
2007 2 3 54134 -0.1006 0.4753 0.11736
2007 2 4 54135 -0.0989 0.4775 0.11689
2007 2 5 54136 -0.0972 0.4798 0.11629
2007 2 6 54137 -0.0953 0.4820 0.11565
2007 2 7 54138 -0.0935 0.4842 0.11501
2007 2 8 54139 -0.0916 0.4864 0.11444
2007 2 9 54140 -0.0897 0.4886 0.11403
2007 2 10 54141 -0.0877 0.4907 0.11385
2007 2 11 54142 -0.0857 0.4928 0.11384
2007 2 12 54143 -0.0836 0.4949 0.11400
2007 2 13 54144 -0.0815 0.4969 0.11420
2007 2 14 54145 -0.0793 0.4990 0.11433
2007 2 15 54146 -0.0771 0.5010 0.11434
2007 2 16 54147 -0.0749 0.5029 0.11409
2007 2 17 54148 -0.0726 0.5049 0.11352
2007 2 18 54149 -0.0703 0.5068 0.11265
2007 2 19 54150 -0.0679 0.5087 0.11152
2007 2 20 54151 -0.0655 0.5105 0.11032
2007 2 21 54152 -0.0631 0.5123 0.10925
2007 2 22 54153 -0.0606 0.5141 0.10845
2007 2 23 54154 -0.0581 0.5159 0.10797
2007 2 24 54155 -0.0556 0.5176 0.10778
2007 2 25 54156 -0.0530 0.5193 0.10788
2007 2 26 54157 -0.0504 0.5209 0.10808
2007 2 27 54158 -0.0478 0.5225 0.10824
2007 2 28 54159 -0.0451 0.5241 0.10825
2007 3 1 54160 -0.0424 0.5257 0.10807
2007 3 2 54161 -0.0397 0.5272 0.10767
2007 3 3 54162 -0.0369 0.5286 0.10708
2007 3 4 54163 -0.0341 0.5301 0.10642
2007 3 5 54164 -0.0313 0.5315 0.10575
2007 3 6 54165 -0.0285 0.5328 0.10504
2007 3 7 54166 -0.0256 0.5341 0.10435
2007 3 8 54167 -0.0227 0.5354 0.10374
2007 3 9 54168 -0.0198 0.5367 0.10328
2007 3 10 54169 -0.0168 0.5379 0.10301
2007 3 11 54170 -0.0139 0.5390 0.10287
2007 3 12 54171 -0.0109 0.5401 0.10285
2007 3 13 54172 -0.0079 0.5412 0.10286
2007 3 14 54173 -0.0048 0.5422 0.10274
2007 3 15 54174 -0.0018 0.5432 0.10243
2007 3 16 54175 0.0013 0.5442 0.10179
2007 3 17 54176 0.0044 0.5451 0.10074
2007 3 18 54177 0.0075 0.5460 0.09930
2007 3 19 54178 0.0106 0.5468 0.09760
2007 3 20 54179 0.0138 0.5476 0.09585
2007 3 21 54180 0.0169 0.5483 0.09423
2007 3 22 54181 0.0201 0.5490 0.09292
2007 3 23 54182 0.0233 0.5496 0.09198
2007 3 24 54183 0.0265 0.5502 0.09137
2007 3 25 54184 0.0297 0.5508 0.09098
2007 3 26 54185 0.0329 0.5513 0.09064
2007 3 27 54186 0.0361 0.5518 0.09023
2007 3 28 54187 0.0394 0.5522 0.08971
2007 3 29 54188 0.0426 0.5526 0.08903
2007 3 30 54189 0.0459 0.5529 0.08811
2007 3 31 54190 0.0491 0.5532 0.08703
2007 4 1 54191 0.0524 0.5534 0.08587
2007 4 2 54192 0.0556 0.5536 0.08473
2007 4 3 54193 0.0589 0.5538 0.08374
2007 4 4 54194 0.0622 0.5539 0.08294
2007 4 5 54195 0.0655 0.5539 0.08233
2007 4 6 54196 0.0687 0.5539 0.08188
2007 4 7 54197 0.0720 0.5539 0.08166
2007 4 8 54198 0.0753 0.5538 0.08168
2007 4 9 54199 0.0786 0.5536 0.08183
2007 4 10 54200 0.0818 0.5534 0.08198
2007 4 11 54201 0.0851 0.5532 0.08199
2007 4 12 54202 0.0884 0.5529 0.08171
2007 4 13 54203 0.0916 0.5526 0.08102
2007 4 14 54204 0.0949 0.5522 0.07998
2007 4 15 54205 0.0982 0.5518 0.07856
2007 4 16 54206 0.1014 0.5513 0.07703
2007 4 17 54207 0.1046 0.5508 0.07556
2007 4 18 54208 0.1079 0.5502 0.07428
2007 4 19 54209 0.1111 0.5496 0.07326
2007 4 20 54210 0.1143 0.5489 0.07260
2007 4 21 54211 0.1175 0.5482 0.07223
2007 4 22 54212 0.1207 0.5475 0.07199
2007 4 23 54213 0.1239 0.5467 0.07168
2007 4 24 54214 0.1271 0.5458 0.07114
2007 4 25 54215 0.1302 0.5449 0.07048
2007 4 26 54216 0.1334 0.5439 0.06965
2007 4 27 54217 0.1365 0.5429 0.06861
2007 4 28 54218 0.1396 0.5419 0.06745
2007 4 29 54219 0.1427 0.5408 0.06624
2007 4 30 54220 0.1458 0.5397 0.06504
2007 5 1 54221 0.1488 0.5385 0.06393
2007 5 2 54222 0.1519 0.5372 0.06304
2007 5 3 54223 0.1549 0.5359 0.06236
2007 5 4 54224 0.1579 0.5346 0.06193
2007 5 5 54225 0.1609 0.5332 0.06170
2007 5 6 54226 0.1639 0.5318 0.06159
2007 5 7 54227 0.1668 0.5303 0.06146
2007 5 8 54228 0.1697 0.5288 0.06121
2007 5 9 54229 0.1726 0.5273 0.06075
2007 5 10 54230 0.1755 0.5257 0.06006
2007 5 11 54231 0.1784 0.5240 0.05912
2007 5 12 54232 0.1812 0.5223 0.05787
2007 5 13 54233 0.1840 0.5206 0.05651
2007 5 14 54234 0.1868 0.5188 0.05515
2007 5 15 54235 0.1895 0.5170 0.05398
2007 5 16 54236 0.1923 0.5151 0.05314
2007 5 17 54237 0.1950 0.5132 0.05271
2007 5 18 54238 0.1976 0.5112 0.05265
2007 5 19 54239 0.2003 0.5092 0.05284
2007 5 20 54240 0.2029 0.5072 0.05315
2007 5 21 54241 0.2055 0.5051 0.05334
2007 5 22 54242 0.2080 0.5029 0.05337
2007 5 23 54243 0.2106 0.5008 0.05327
2007 5 24 54244 0.2131 0.4985 0.05303
2007 5 25 54245 0.2155 0.4963 0.05267
2007 5 26 54246 0.2180 0.4940 0.05231
2007 5 27 54247 0.2204 0.4917 0.05197
2007 5 28 54248 0.2227 0.4893 0.05170
2007 5 29 54249 0.2251 0.4869 0.05160
2007 5 30 54250 0.2274 0.4844 0.05168
2007 5 31 54251 0.2296 0.4819 0.05198
2007 6 1 54252 0.2319 0.4794 0.05249
2007 6 2 54253 0.2341 0.4768 0.05310
2007 6 3 54254 0.2362 0.4742 0.05375
2007 6 4 54255 0.2384 0.4716 0.05440
2007 6 5 54256 0.2404 0.4689 0.05496
2007 6 6 54257 0.2425 0.4662 0.05534
2007 6 7 54258 0.2445 0.4634 0.05550
2007 6 8 54259 0.2465 0.4606 0.05537
2007 6 9 54260 0.2484 0.4578 0.05503
2007 6 10 54261 0.2503 0.4550 0.05462
2007 6 11 54262 0.2522 0.4521 0.05428
2007 6 12 54263 0.2540 0.4492 0.05420
2007 6 13 54264 0.2558 0.4462 0.05437
2007 6 14 54265 0.2575 0.4432 0.05479
2007 6 15 54266 0.2592 0.4402 0.05534
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)
53882 -55.43 .23 -6.04 .34
53883 -55.45 .23 -6.34 .34
53884 -55.28 .19 -6.60 .34
53885 -55.02 .11 -6.71 .12
53886 -54.82 .11 -6.62 .12
53887 -54.80 .11 -6.40 .12
53888 -54.91 .11 -6.22 .12
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53882 -0.139 0.091 -0.300 0.340
53883 -0.134 0.091 -0.328 0.340
53884 -0.110 0.076 -0.348 0.340
53885 -0.079 0.044 -0.366 0.120
53886 -0.048 0.044 -0.368 0.120
53887 -0.033 0.044 -0.338 0.120
53888 -0.037 0.044 -0.305 0.120
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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