**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
27 July 2006 Vol. XIX No. 030
______________________________________________________________________
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 December 31, 2006. *
* Last positive leap second introduced in UTC on December 31, 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 7 21 53937 .12012 .00002 .27829 .00004 .182533 .000008
6 7 22 53938 .11944 .00002 .27742 .00004 .182610 .000009
6 7 23 53939 .11876 .00002 .27652 .00005 .182839 .000009
6 7 24 53940 .11802 .00002 .27552 .00005 .183095 .000010
6 7 25 53941 .11738 .00002 .27434 .00004 .183257 .000010
6 7 26 53942 .11692 .00002 .27331 .00004 .183259 .000009
6 7 27 53943 .11653 .00001 .27244 .00004 .183129 .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 = .0520 + .1434 cos A + .1013 sin A - .0743 cos C - .1830 sin C
y = .3542 + .0975 cos A - .1282 sin A - .1830 cos C + .0743 sin C
UT1-UTC = .1448 - .00055 (MJD - 53948) - (UT2-UT1)
where A = 2*pi*(MJD-53943)/365.25 and C = 2*pi*(MJD-53943)/435.
TAI-UTC(MJD 53944) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53943)**0.80 S t = 0.00025 (MJD-53943)**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 7 28 53944 0.1161 0.2715 0.18284
2006 7 29 53945 0.1156 0.2705 0.18244
2006 7 30 53946 0.1151 0.2694 0.18195
2006 7 31 53947 0.1144 0.2684 0.18143
2006 8 1 53948 0.1137 0.2673 0.18095
2006 8 2 53949 0.1129 0.2662 0.18060
2006 8 3 53950 0.1120 0.2651 0.18042
2006 8 4 53951 0.1111 0.2640 0.18040
2006 8 5 53952 0.1102 0.2629 0.18052
2006 8 6 53953 0.1092 0.2618 0.18071
2006 8 7 53954 0.1082 0.2608 0.18084
2006 8 8 53955 0.1072 0.2597 0.18077
2006 8 9 53956 0.1061 0.2587 0.18041
2006 8 10 53957 0.1050 0.2576 0.17970
2006 8 11 53958 0.1038 0.2566 0.17868
2006 8 12 53959 0.1027 0.2556 0.17745
2006 8 13 53960 0.1015 0.2546 0.17615
2006 8 14 53961 0.1003 0.2537 0.17495
2006 8 15 53962 0.0990 0.2527 0.17398
2006 8 16 53963 0.0978 0.2518 0.17330
2006 8 17 53964 0.0965 0.2509 0.17287
2006 8 18 53965 0.0952 0.2500 0.17265
2006 8 19 53966 0.0938 0.2491 0.17251
2006 8 20 53967 0.0925 0.2482 0.17238
2006 8 21 53968 0.0911 0.2474 0.17216
2006 8 22 53969 0.0897 0.2465 0.17181
2006 8 23 53970 0.0883 0.2457 0.17131
2006 8 24 53971 0.0868 0.2449 0.17067
2006 8 25 53972 0.0854 0.2441 0.16991
2006 8 26 53973 0.0839 0.2434 0.16910
2006 8 27 53974 0.0824 0.2427 0.16829
2006 8 28 53975 0.0808 0.2420 0.16754
2006 8 29 53976 0.0793 0.2413 0.16690
2006 8 30 53977 0.0777 0.2406 0.16641
2006 8 31 53978 0.0761 0.2399 0.16607
2006 9 1 53979 0.0745 0.2393 0.16589
2006 9 2 53980 0.0728 0.2387 0.16581
2006 9 3 53981 0.0712 0.2382 0.16576
2006 9 4 53982 0.0695 0.2376 0.16560
2006 9 5 53983 0.0678 0.2371 0.16521
2006 9 6 53984 0.0660 0.2366 0.16448
2006 9 7 53985 0.0643 0.2361 0.16337
2006 9 8 53986 0.0625 0.2356 0.16196
2006 9 9 53987 0.0607 0.2352 0.16038
2006 9 10 53988 0.0589 0.2348 0.15884
2006 9 11 53989 0.0571 0.2344 0.15751
2006 9 12 53990 0.0552 0.2341 0.15651
2006 9 13 53991 0.0533 0.2338 0.15582
2006 9 14 53992 0.0514 0.2335 0.15538
2006 9 15 53993 0.0495 0.2332 0.15507
2006 9 16 53994 0.0476 0.2330 0.15476
2006 9 17 53995 0.0456 0.2328 0.15437
2006 9 18 53996 0.0436 0.2326 0.15383
2006 9 19 53997 0.0416 0.2325 0.15311
2006 9 20 53998 0.0396 0.2323 0.15222
2006 9 21 53999 0.0376 0.2323 0.15119
2006 9 22 54000 0.0355 0.2322 0.15005
2006 9 23 54001 0.0335 0.2322 0.14888
2006 9 24 54002 0.0314 0.2322 0.14774
2006 9 25 54003 0.0293 0.2322 0.14671
2006 9 26 54004 0.0272 0.2323 0.14582
2006 9 27 54005 0.0251 0.2324 0.14511
2006 9 28 54006 0.0229 0.2325 0.14456
2006 9 29 54007 0.0208 0.2327 0.14414
2006 9 30 54008 0.0186 0.2329 0.14378
2006 10 1 54009 0.0164 0.2331 0.14338
2006 10 2 54010 0.0142 0.2334 0.14281
2006 10 3 54011 0.0120 0.2337 0.14197
2006 10 4 54012 0.0098 0.2340 0.14078
2006 10 5 54013 0.0076 0.2344 0.13926
2006 10 6 54014 0.0054 0.2348 0.13750
2006 10 7 54015 0.0031 0.2352 0.13570
2006 10 8 54016 0.0009 0.2357 0.13405
2006 10 9 54017 -0.0014 0.2362 0.13271
2006 10 10 54018 -0.0036 0.2368 0.13172
2006 10 11 54019 -0.0059 0.2373 0.13105
2006 10 12 54020 -0.0082 0.2380 0.13059
2006 10 13 54021 -0.0105 0.2386 0.13020
2006 10 14 54022 -0.0127 0.2393 0.12976
2006 10 15 54023 -0.0150 0.2400 0.12919
2006 10 16 54024 -0.0173 0.2407 0.12845
2006 10 17 54025 -0.0196 0.2415 0.12753
2006 10 18 54026 -0.0219 0.2424 0.12646
2006 10 19 54027 -0.0242 0.2432 0.12527
2006 10 20 54028 -0.0265 0.2441 0.12403
2006 10 21 54029 -0.0288 0.2450 0.12281
2006 10 22 54030 -0.0310 0.2460 0.12166
2006 10 23 54031 -0.0333 0.2470 0.12065
2006 10 24 54032 -0.0356 0.2481 0.11981
2006 10 25 54033 -0.0379 0.2491 0.11915
2006 10 26 54034 -0.0401 0.2502 0.11862
2006 10 27 54035 -0.0424 0.2514 0.11818
2006 10 28 54036 -0.0447 0.2526 0.11773
2006 10 29 54037 -0.0469 0.2538 0.11717
2006 10 30 54038 -0.0491 0.2550 0.11639
2006 10 31 54039 -0.0514 0.2563 0.11531
2006 11 1 54040 -0.0536 0.2576 0.11392
2006 11 2 54041 -0.0558 0.2590 0.11227
2006 11 3 54042 -0.0580 0.2604 0.11049
2006 11 4 54043 -0.0601 0.2618 0.10876
2006 11 5 54044 -0.0623 0.2632 0.10725
2006 11 6 54045 -0.0644 0.2647 0.10607
2006 11 7 54046 -0.0666 0.2663 0.10522
2006 11 8 54047 -0.0687 0.2678 0.10464
2006 11 9 54048 -0.0708 0.2694 0.10420
2006 11 10 54049 -0.0729 0.2710 0.10363
2006 11 11 54050 -0.0749 0.2727 0.10297
2006 11 12 54051 -0.0769 0.2744 0.10215
2006 11 13 54052 -0.0790 0.2761 0.10118
2006 11 14 54053 -0.0809 0.2778 0.10005
2006 11 15 54054 -0.0829 0.2796 0.09882
2006 11 16 54055 -0.0849 0.2814 0.09754
2006 11 17 54056 -0.0868 0.2833 0.09626
2006 11 18 54057 -0.0887 0.2852 0.09506
2006 11 19 54058 -0.0905 0.2871 0.09400
2006 11 20 54059 -0.0924 0.2890 0.09310
2006 11 21 54060 -0.0942 0.2910 0.09240
2006 11 22 54061 -0.0960 0.2930 0.09186
2006 11 23 54062 -0.0977 0.2950 0.09144
2006 11 24 54063 -0.0994 0.2970 0.09105
2006 11 25 54064 -0.1011 0.2991 0.09059
2006 11 26 54065 -0.1028 0.3012 0.08995
2006 11 27 54066 -0.1044 0.3033 0.08907
2006 11 28 54067 -0.1060 0.3055 0.08790
2006 11 29 54068 -0.1075 0.3077 0.08650
2006 11 30 54069 -0.1091 0.3099 0.08496
2006 12 1 54070 -0.1105 0.3121 0.08343
2006 12 2 54071 -0.1120 0.3144 0.08204
2006 12 3 54072 -0.1134 0.3167 0.08094
2006 12 4 54073 -0.1148 0.3190 0.08014
2006 12 5 54074 -0.1161 0.3213 0.07963
2006 12 6 54075 -0.1174 0.3236 0.07930
2006 12 7 54076 -0.1186 0.3260 0.07903
2006 12 8 54077 -0.1198 0.3284 0.07869
2006 12 9 54078 -0.1210 0.3308 0.07822
2006 12 10 54079 -0.1221 0.3332 0.07759
2006 12 11 54080 -0.1232 0.3356 0.07680
2006 12 12 54081 -0.1243 0.3381 0.07591
2006 12 13 54082 -0.1253 0.3406 0.07495
2006 12 14 54083 -0.1262 0.3431 0.07399
2006 12 15 54084 -0.1271 0.3456 0.07310
2006 12 16 54085 -0.1280 0.3481 0.07233
2006 12 17 54086 -0.1288 0.3507 0.07172
2006 12 18 54087 -0.1295 0.3532 0.07129
2006 12 19 54088 -0.1303 0.3558 0.07104
2006 12 20 54089 -0.1309 0.3584 0.07092
2006 12 21 54090 -0.1316 0.3610 0.07085
2006 12 22 54091 -0.1321 0.3636 0.07073
2006 12 23 54092 -0.1327 0.3662 0.07044
2006 12 24 54093 -0.1331 0.3688 0.06992
2006 12 25 54094 -0.1336 0.3715 0.06911
2006 12 26 54095 -0.1339 0.3741 0.06806
2006 12 27 54096 -0.1343 0.3768 0.06687
2006 12 28 54097 -0.1345 0.3794 0.06567
2006 12 29 54098 -0.1348 0.3821 0.06459
2006 12 30 54099 -0.1349 0.3848 0.06375
2006 12 31 54100 -0.1350 0.3874 0.06320
2007 1 1 54101 -0.1351 0.3901 0.06291
2007 1 2 54102 -0.1351 0.3928 0.06281
2007 1 3 54103 -0.1351 0.3955 0.06279
2007 1 4 54104 -0.1350 0.3982 0.06273
2007 1 5 54105 -0.1349 0.4009 0.06255
2007 1 6 54106 -0.1347 0.4036 0.06219
2007 1 7 54107 -0.1344 0.4062 0.06165
2007 1 8 54108 -0.1341 0.4089 0.06097
2007 1 9 54109 -0.1338 0.4116 0.06019
2007 1 10 54110 -0.1334 0.4143 0.05940
2007 1 11 54111 -0.1329 0.4170 0.05864
2007 1 12 54112 -0.1324 0.4197 0.05798
2007 1 13 54113 -0.1318 0.4223 0.05746
2007 1 14 54114 -0.1312 0.4250 0.05710
2007 1 15 54115 -0.1306 0.4277 0.05691
2007 1 16 54116 -0.1298 0.4303 0.05685
2007 1 17 54117 -0.1291 0.4330 0.05687
2007 1 18 54118 -0.1282 0.4356 0.05684
2007 1 19 54119 -0.1274 0.4382 0.05667
2007 1 20 54120 -0.1264 0.4409 0.05623
2007 1 21 54121 -0.1254 0.4435 0.05548
2007 1 22 54122 -0.1244 0.4461 0.05444
2007 1 23 54123 -0.1233 0.4486 0.05319
2007 1 24 54124 -0.1222 0.4512 0.05189
2007 1 25 54125 -0.1210 0.4538 0.05069
2007 1 26 54126 -0.1198 0.4563 0.04971
2007 1 27 54127 -0.1185 0.4588 0.04900
2007 1 28 54128 -0.1171 0.4613 0.04856
2007 1 29 54129 -0.1157 0.4638 0.04829
2007 1 30 54130 -0.1143 0.4663 0.04811
2007 1 31 54131 -0.1128 0.4688 0.04790
2007 2 1 54132 -0.1113 0.4712 0.04757
2007 2 2 54133 -0.1097 0.4736 0.04705
2007 2 3 54134 -0.1080 0.4760 0.04633
2007 2 4 54135 -0.1063 0.4784 0.04543
2007 2 5 54136 -0.1046 0.4808 0.04441
2007 2 6 54137 -0.1028 0.4831 0.04334
2007 2 7 54138 -0.1009 0.4854 0.04229
2007 2 8 54139 -0.0990 0.4877 0.04134
2007 2 9 54140 -0.0971 0.4900 0.04054
2007 2 10 54141 -0.0951 0.4923 0.03993
2007 2 11 54142 -0.0931 0.4945 0.03952
2007 2 12 54143 -0.0910 0.4967 0.03931
2007 2 13 54144 -0.0889 0.4988 0.03924
2007 2 14 54145 -0.0867 0.5010 0.03924
2007 2 15 54146 -0.0845 0.5031 0.03918
2007 2 16 54147 -0.0823 0.5052 0.03895
2007 2 17 54148 -0.0800 0.5072 0.03842
2007 2 18 54149 -0.0777 0.5092 0.03756
2007 2 19 54150 -0.0753 0.5112 0.03644
2007 2 20 54151 -0.0729 0.5132 0.03519
2007 2 21 54152 -0.0705 0.5151 0.03399
2007 2 22 54153 -0.0680 0.5170 0.03301
2007 2 23 54154 -0.0655 0.5189 0.03234
2007 2 24 54155 -0.0629 0.5207 0.03199
2007 2 25 54156 -0.0604 0.5225 0.03189
2007 2 26 54157 -0.0577 0.5242 0.03193
2007 2 27 54158 -0.0551 0.5260 0.03197
2007 2 28 54159 -0.0524 0.5277 0.03188
2007 3 1 54160 -0.0497 0.5293 0.03157
2007 3 2 54161 -0.0469 0.5309 0.03104
2007 3 3 54162 -0.0441 0.5325 0.03031
2007 3 4 54163 -0.0413 0.5341 0.02942
2007 3 5 54164 -0.0385 0.5356 0.02838
2007 3 6 54165 -0.0356 0.5370 0.02732
2007 3 7 54166 -0.0327 0.5384 0.02628
2007 3 8 54167 -0.0298 0.5398 0.02535
2007 3 9 54168 -0.0268 0.5412 0.02457
2007 3 10 54169 -0.0238 0.5425 0.02394
2007 3 11 54170 -0.0208 0.5437 0.02346
2007 3 12 54171 -0.0178 0.5450 0.02308
2007 3 13 54172 -0.0147 0.5461 0.02276
2007 3 14 54173 -0.0116 0.5473 0.02242
2007 3 15 54174 -0.0085 0.5484 0.02191
2007 3 16 54175 -0.0054 0.5494 0.02112
2007 3 17 54176 -0.0022 0.5504 0.01999
2007 3 18 54177 0.0009 0.5514 0.01855
2007 3 19 54178 0.0041 0.5523 0.01697
2007 3 20 54179 0.0073 0.5532 0.01535
2007 3 21 54180 0.0105 0.5540 0.01393
2007 3 22 54181 0.0138 0.5548 0.01289
2007 3 23 54182 0.0170 0.5556 0.01228
2007 3 24 54183 0.0203 0.5563 0.01198
2007 3 25 54184 0.0236 0.5569 0.01185
2007 3 26 54185 0.0269 0.5575 0.01182
2007 3 27 54186 0.0302 0.5581 0.01167
2007 3 28 54187 0.0335 0.5586 0.01140
2007 3 29 54188 0.0368 0.5590 0.01088
2007 3 30 54189 0.0402 0.5595 0.01007
2007 3 31 54190 0.0435 0.5598 0.00914
2007 4 1 54191 0.0469 0.5601 0.00814
2007 4 2 54192 0.0503 0.5604 0.00713
2007 4 3 54193 0.0536 0.5606 0.00616
2007 4 4 54194 0.0570 0.5608 0.00527
2007 4 5 54195 0.0604 0.5609 0.00450
2007 4 6 54196 0.0638 0.5610 0.00387
2007 4 7 54197 0.0672 0.5610 0.00342
2007 4 8 54198 0.0706 0.5610 0.00309
2007 4 9 54199 0.0740 0.5610 0.00281
2007 4 10 54200 0.0774 0.5608 0.00249
2007 4 11 54201 0.0808 0.5607 0.00202
2007 4 12 54202 0.0842 0.5605 0.00134
2007 4 13 54203 0.0876 0.5602 0.00041
2007 4 14 54204 0.0910 0.5599 -0.00075
2007 4 15 54205 0.0944 0.5595 -0.00223
2007 4 16 54206 0.0978 0.5591 -0.00385
2007 4 17 54207 0.1012 0.5586 -0.00539
2007 4 18 54208 0.1045 0.5581 -0.00670
2007 4 19 54209 0.1079 0.5575 -0.00768
2007 4 20 54210 0.1113 0.5569 -0.00830
2007 4 21 54211 0.1146 0.5563 -0.00868
2007 4 22 54212 0.1180 0.5555 -0.00892
2007 4 23 54213 0.1214 0.5548 -0.00914
2007 4 24 54214 0.1247 0.5540 -0.00935
2007 4 25 54215 0.1280 0.5531 -0.00970
2007 4 26 54216 0.1313 0.5522 -0.01020
2007 4 27 54217 0.1346 0.5512 -0.01085
2007 4 28 54218 0.1379 0.5502 -0.01156
2007 4 29 54219 0.1412 0.5491 -0.01237
2007 4 30 54220 0.1445 0.5480 -0.01314
2007 5 1 54221 0.1477 0.5468 -0.01379
2007 5 2 54222 0.1510 0.5456 -0.01429
2007 5 3 54223 0.1542 0.5444 -0.01461
2007 5 4 54224 0.1574 0.5430 -0.01471
2007 5 5 54225 0.1606 0.5417 -0.01459
2007 5 6 54226 0.1637 0.5403 -0.01435
2007 5 7 54227 0.1669 0.5388 -0.01407
2007 5 8 54228 0.1700 0.5373 -0.01389
2007 5 9 54229 0.1731 0.5357 -0.01395
2007 5 10 54230 0.1762 0.5341 -0.01426
2007 5 11 54231 0.1793 0.5325 -0.01486
2007 5 12 54232 0.1823 0.5308 -0.01573
2007 5 13 54233 0.1853 0.5290 -0.01673
2007 5 14 54234 0.1883 0.5272 -0.01772
2007 5 15 54235 0.1913 0.5254 -0.01851
2007 5 16 54236 0.1943 0.5235 -0.01893
2007 5 17 54237 0.1972 0.5216 -0.01896
2007 5 18 54238 0.2001 0.5196 -0.01869
2007 5 19 54239 0.2029 0.5175 -0.01824
2007 5 20 54240 0.2058 0.5155 -0.01770
2007 5 21 54241 0.2086 0.5133 -0.01726
2007 5 22 54242 0.2114 0.5112 -0.01701
2007 5 23 54243 0.2141 0.5090 -0.01697
2007 5 24 54244 0.2169 0.5067 -0.01710
2007 5 25 54245 0.2196 0.5044 -0.01734
2007 5 26 54246 0.2222 0.5021 -0.01760
2007 5 27 54247 0.2249 0.4997 -0.01772
2007 5 28 54248 0.2275 0.4972 -0.01770
2007 5 29 54249 0.2300 0.4948 -0.01755
2007 5 30 54250 0.2326 0.4923 -0.01725
2007 5 31 54251 0.2351 0.4897 -0.01679
2007 6 1 54252 0.2375 0.4871 -0.01616
2007 6 2 54253 0.2399 0.4845 -0.01539
2007 6 3 54254 0.2423 0.4818 -0.01460
2007 6 4 54255 0.2447 0.4791 -0.01385
2007 6 5 54256 0.2470 0.4763 -0.01324
2007 6 6 54257 0.2493 0.4735 -0.01291
2007 6 7 54258 0.2515 0.4707 -0.01284
2007 6 8 54259 0.2537 0.4678 -0.01306
2007 6 9 54260 0.2559 0.4649 -0.01350
2007 6 10 54261 0.2580 0.4620 -0.01406
2007 6 11 54262 0.2601 0.4590 -0.01456
2007 6 12 54263 0.2621 0.4560 -0.01486
2007 6 13 54264 0.2641 0.4529 -0.01487
2007 6 14 54265 0.2661 0.4498 -0.01456
2007 6 15 54266 0.2680 0.4467 -0.01403
2007 6 16 54267 0.2698 0.4435 -0.01336
2007 6 17 54268 0.2717 0.4404 -0.01270
2007 6 18 54269 0.2734 0.4371 -0.01219
2007 6 19 54270 0.2752 0.4339 -0.01187
2007 6 20 54271 0.2769 0.4306 -0.01166
2007 6 21 54272 0.2785 0.4273 -0.01155
2007 6 22 54273 0.2801 0.4240 -0.01155
2007 6 23 54274 0.2816 0.4206 -0.01154
2007 6 24 54275 0.2831 0.4172 -0.01143
2007 6 25 54276 0.2846 0.4138 -0.01113
2007 6 26 54277 0.2860 0.4103 -0.01057
2007 6 27 54278 0.2873 0.4068 -0.00974
2007 6 28 54279 0.2886 0.4033 -0.00870
2007 6 29 54280 0.2899 0.3998 -0.00755
2007 6 30 54281 0.2911 0.3963 -0.00627
2007 7 1 54282 0.2922 0.3927 -0.00494
2007 7 2 54283 0.2933 0.3891 -0.00367
2007 7 3 54284 0.2943 0.3855 -0.00261
2007 7 4 54285 0.2953 0.3819 -0.00184
2007 7 5 54286 0.2962 0.3782 -0.00139
2007 7 6 54287 0.2971 0.3745 -0.00122
2007 7 7 54288 0.2979 0.3708 -0.00115
2007 7 8 54289 0.2987 0.3671 -0.00112
2007 7 9 54290 0.2994 0.3634 -0.00088
2007 7 10 54291 0.3001 0.3597 -0.00038
2007 7 11 54292 0.3007 0.3559 0.00035
2007 7 12 54293 0.3012 0.3521 0.00123
2007 7 13 54294 0.3017 0.3484 0.00223
2007 7 14 54295 0.3021 0.3446 0.00325
2007 7 15 54296 0.3025 0.3408 0.00413
2007 7 16 54297 0.3028 0.3370 0.00478
2007 7 17 54298 0.3031 0.3331 0.00512
2007 7 18 54299 0.3033 0.3293 0.00535
2007 7 19 54300 0.3034 0.3255 0.00548
2007 7 20 54301 0.3035 0.3216 0.00552
2007 7 21 54302 0.3035 0.3178 0.00560
2007 7 22 54303 0.3034 0.3139 0.00576
2007 7 23 54304 0.3033 0.3101 0.00605
2007 7 24 54305 0.3032 0.3062 0.00648
2007 7 25 54306 0.3029 0.3023 0.00713
2007 7 26 54307 0.3026 0.2985 0.00795
2007 7 27 54308 0.3023 0.2946 0.00889
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)
53924 -61.28 .16 -5.94 .34
53925 -61.20 .15 -5.94 .34
53926 -61.11 .17 -5.93 .34
53927 -61.03 .11 -5.91 .34
53928 -60.94 .12 -5.82 .34
53929 -60.91 .12 -5.66 .34
53930 -61.11 .12 -5.54 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53924 -0.068 0.064 -0.298 0.340
53925 -0.055 0.060 -0.275 0.340
53926 -0.053 0.068 -0.277 0.340
53927 -0.055 0.044 -0.281 0.340
53928 -0.064 0.048 -0.284 0.340
53929 -0.070 0.048 -0.293 0.340
53930 -0.073 0.048 -0.308 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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