**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
4 October 2007 Vol. XX No. 040
______________________________________________________________________
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 14 June 2007 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* As of Bulletin A Vol. XX, No. 040, on 04 October 2007, we have *
* incorporated 2.5 additional days of AAM forecasts to the UT1-UTC *
* predictions. This change should improve the near-term UT1-UTC *
* predictions. *
**********************************************************************
________________________________________________________________________
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
7 9 28 54371 .14145 .00009 .21118 .00010 -.183777 .000013
7 9 29 54372 .13869 .00009 .20947 .00010 -.185182 .000009
7 9 30 54373 .13609 .00009 .20783 .00010 -.186302 .000009
7 10 1 54374 .13357 .00009 .20645 .00010 -.187136 .000009
7 10 2 54375 .13062 .00009 .20519 .00009 -.187722 .000009
7 10 3 54376 .12755 .00009 .20396 .00010 -.188215 .000048
7 10 4 54377 .12454 .00009 .20284 .00010 -.188786 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
7 8 3 54315 .2263 .3291 -.16260
7 8 4 54316 .2260 .3266 -.16337
7 8 5 54317 .2253 .3237 -.16395
7 8 6 54318 .2241 .3210 -.16433
7 8 7 54319 .2228 .3186 -.16436
7 8 8 54320 .2214 .3161 -.16415
7 8 9 54321 .2197 .3135 -.16375
7 8 10 54322 .2181 .3109 -.16329
7 8 11 54323 .2172 .3083 -.16292
7 8 12 54324 .2169 .3057 -.16273
7 8 13 54325 .2167 .3034 -.16276
7 8 14 54326 .2163 .3011 -.16290
7 8 15 54327 .2154 .2991 -.16313
7 8 16 54328 .2142 .2974 -.16342
7 8 17 54329 .2127 .2955 -.16365
7 8 18 54330 .2116 .2929 -.16387
7 8 19 54331 .2108 .2900 -.16399
7 8 20 54332 .2104 .2870 -.16399
7 8 21 54333 .2102 .2843 -.16385
7 8 22 54334 .2096 .2821 -.16356
7 8 23 54335 .2084 .2797 -.16313
7 8 24 54336 .2066 .2774 -.16263
7 8 25 54337 .2048 .2750 -.16219
7 8 26 54338 .2030 .2726 -.16190
7 8 27 54339 .2018 .2704 -.16192
7 8 28 54340 .2009 .2686 -.16221
7 8 29 54341 .2001 .2670 -.16287
7 8 30 54342 .1994 .2655 -.16371
7 8 31 54343 .1987 .2638 -.16468
7 9 1 54344 .1979 .2619 -.16565
_______________________________________________________________________
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 = .0507 + .0764 cos A - .0294 sin A + .0044 cos C - .1159 sin C
y = .3483 - .0289 cos A - .0743 sin A - .1159 cos C - .0044 sin C
UT1-UTC = -.2162 - .00092 (MJD - 54382) - (UT2-UT1)
where A = 2*pi*(MJD-54377)/365.25 and C = 2*pi*(MJD-54377)/435.
TAI-UTC(MJD 54378) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54377)**0.80 S t = 0.00025 (MJD-54377)**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)
2007 10 5 54378 0.1216 0.2017 -0.18952
2007 10 6 54379 0.1188 0.2007 -0.19041
2007 10 7 54380 0.1159 0.1996 -0.19141
2007 10 8 54381 0.1131 0.1987 -0.19250
2007 10 9 54382 0.1103 0.1978 -0.19367
2007 10 10 54383 0.1074 0.1970 -0.19485
2007 10 11 54384 0.1046 0.1962 -0.19599
2007 10 12 54385 0.1017 0.1955 -0.19700
2007 10 13 54386 0.0988 0.1949 -0.19785
2007 10 14 54387 0.0959 0.1943 -0.19853
2007 10 15 54388 0.0930 0.1937 -0.19907
2007 10 16 54389 0.0901 0.1932 -0.19956
2007 10 17 54390 0.0872 0.1927 -0.20004
2007 10 18 54391 0.0843 0.1923 -0.20056
2007 10 19 54392 0.0814 0.1920 -0.20122
2007 10 20 54393 0.0785 0.1917 -0.20207
2007 10 21 54394 0.0756 0.1914 -0.20319
2007 10 22 54395 0.0726 0.1912 -0.20461
2007 10 23 54396 0.0697 0.1910 -0.20631
2007 10 24 54397 0.0668 0.1909 -0.20820
2007 10 25 54398 0.0638 0.1908 -0.21013
2007 10 26 54399 0.0609 0.1908 -0.21191
2007 10 27 54400 0.0579 0.1908 -0.21341
2007 10 28 54401 0.0550 0.1908 -0.21458
2007 10 29 54402 0.0520 0.1909 -0.21547
2007 10 30 54403 0.0491 0.1911 -0.21621
2007 10 31 54404 0.0461 0.1913 -0.21696
2007 11 1 54405 0.0432 0.1915 -0.21783
2007 11 2 54406 0.0402 0.1918 -0.21888
2007 11 3 54407 0.0373 0.1921 -0.22010
2007 11 4 54408 0.0344 0.1925 -0.22145
2007 11 5 54409 0.0314 0.1929 -0.22285
2007 11 6 54410 0.0285 0.1934 -0.22425
2007 11 7 54411 0.0256 0.1939 -0.22559
2007 11 8 54412 0.0226 0.1944 -0.22681
2007 11 9 54413 0.0197 0.1950 -0.22787
2007 11 10 54414 0.0168 0.1957 -0.22875
2007 11 11 54415 0.0139 0.1964 -0.22944
2007 11 12 54416 0.0110 0.1971 -0.22999
2007 11 13 54417 0.0082 0.1979 -0.23047
2007 11 14 54418 0.0053 0.1987 -0.23094
2007 11 15 54419 0.0024 0.1996 -0.23149
2007 11 16 54420 -0.0004 0.2005 -0.23220
2007 11 17 54421 -0.0032 0.2014 -0.23313
2007 11 18 54422 -0.0061 0.2024 -0.23431
2007 11 19 54423 -0.0089 0.2034 -0.23576
2007 11 20 54424 -0.0117 0.2045 -0.23740
2007 11 21 54425 -0.0144 0.2056 -0.23913
2007 11 22 54426 -0.0172 0.2068 -0.24080
2007 11 23 54427 -0.0199 0.2080 -0.24226
2007 11 24 54428 -0.0226 0.2092 -0.24343
2007 11 25 54429 -0.0253 0.2105 -0.24431
2007 11 26 54430 -0.0280 0.2119 -0.24499
2007 11 27 54431 -0.0307 0.2132 -0.24561
2007 11 28 54432 -0.0333 0.2146 -0.24633
2007 11 29 54433 -0.0360 0.2161 -0.24722
2007 11 30 54434 -0.0386 0.2176 -0.24831
2007 12 1 54435 -0.0411 0.2191 -0.24957
2007 12 2 54436 -0.0437 0.2207 -0.25094
2007 12 3 54437 -0.0462 0.2223 -0.25232
2007 12 4 54438 -0.0487 0.2239 -0.25367
2007 12 5 54439 -0.0512 0.2256 -0.25490
2007 12 6 54440 -0.0536 0.2273 -0.25599
2007 12 7 54441 -0.0561 0.2291 -0.25691
2007 12 8 54442 -0.0585 0.2309 -0.25764
2007 12 9 54443 -0.0608 0.2327 -0.25823
2007 12 10 54444 -0.0632 0.2345 -0.25872
2007 12 11 54445 -0.0655 0.2364 -0.25918
2007 12 12 54446 -0.0677 0.2384 -0.25969
2007 12 13 54447 -0.0700 0.2404 -0.26033
2007 12 14 54448 -0.0722 0.2424 -0.26117
2007 12 15 54449 -0.0744 0.2444 -0.26222
2007 12 16 54450 -0.0765 0.2465 -0.26352
2007 12 17 54451 -0.0787 0.2486 -0.26500
2007 12 18 54452 -0.0807 0.2507 -0.26658
2007 12 19 54453 -0.0828 0.2529 -0.26815
2007 12 20 54454 -0.0848 0.2551 -0.26957
2007 12 21 54455 -0.0868 0.2573 -0.27075
2007 12 22 54456 -0.0887 0.2595 -0.27165
2007 12 23 54457 -0.0906 0.2618 -0.27234
2007 12 24 54458 -0.0925 0.2641 -0.27292
2007 12 25 54459 -0.0943 0.2665 -0.27356
2007 12 26 54460 -0.0961 0.2689 -0.27435
2007 12 27 54461 -0.0979 0.2713 -0.27536
2007 12 28 54462 -0.0996 0.2737 -0.27657
2007 12 29 54463 -0.1013 0.2761 -0.27791
2007 12 30 54464 -0.1029 0.2786 -0.27929
2007 12 31 54465 -0.1045 0.2811 -0.28062
2008 1 1 54466 -0.1061 0.2836 -0.28185
2008 1 2 54467 -0.1076 0.2862 -0.28291
2008 1 3 54468 -0.1090 0.2888 -0.28380
2008 1 4 54469 -0.1105 0.2914 -0.28450
2008 1 5 54470 -0.1118 0.2940 -0.28503
2008 1 6 54471 -0.1132 0.2966 -0.28546
2008 1 7 54472 -0.1145 0.2993 -0.28583
2008 1 8 54473 -0.1157 0.3019 -0.28624
2008 1 9 54474 -0.1170 0.3046 -0.28678
2008 1 10 54475 -0.1181 0.3073 -0.28751
2008 1 11 54476 -0.1192 0.3101 -0.28847
2008 1 12 54477 -0.1203 0.3128 -0.28967
2008 1 13 54478 -0.1213 0.3156 -0.29107
2008 1 14 54479 -0.1223 0.3184 -0.29258
2008 1 15 54480 -0.1233 0.3212 -0.29409
2008 1 16 54481 -0.1241 0.3240 -0.29547
2008 1 17 54482 -0.1250 0.3268 -0.29662
2008 1 18 54483 -0.1258 0.3296 -0.29752
2008 1 19 54484 -0.1265 0.3325 -0.29819
2008 1 20 54485 -0.1272 0.3353 -0.29872
2008 1 21 54486 -0.1279 0.3382 -0.29920
2008 1 22 54487 -0.1285 0.3411 -0.29982
2008 1 23 54488 -0.1290 0.3440 -0.30065
2008 1 24 54489 -0.1296 0.3469 -0.30170
2008 1 25 54490 -0.1300 0.3498 -0.30294
2008 1 26 54491 -0.1304 0.3527 -0.30427
2008 1 27 54492 -0.1308 0.3556 -0.30560
2008 1 28 54493 -0.1311 0.3585 -0.30684
2008 1 29 54494 -0.1314 0.3614 -0.30794
2008 1 30 54495 -0.1316 0.3644 -0.30886
2008 1 31 54496 -0.1317 0.3673 -0.30960
2008 2 1 54497 -0.1319 0.3702 -0.31017
2008 2 2 54498 -0.1319 0.3732 -0.31062
2008 2 3 54499 -0.1319 0.3761 -0.31102
2008 2 4 54500 -0.1319 0.3790 -0.31143
2008 2 5 54501 -0.1318 0.3820 -0.31195
2008 2 6 54502 -0.1317 0.3849 -0.31265
2008 2 7 54503 -0.1315 0.3878 -0.31361
2008 2 8 54504 -0.1313 0.3908 -0.31483
2008 2 9 54505 -0.1310 0.3937 -0.31629
2008 2 10 54506 -0.1307 0.3966 -0.31789
2008 2 11 54507 -0.1303 0.3995 -0.31950
2008 2 12 54508 -0.1299 0.4025 -0.32101
2008 2 13 54509 -0.1294 0.4054 -0.32230
2008 2 14 54510 -0.1288 0.4083 -0.32332
2008 2 15 54511 -0.1283 0.4112 -0.32412
2008 2 16 54512 -0.1276 0.4140 -0.32476
2008 2 17 54513 -0.1270 0.4169 -0.32538
2008 2 18 54514 -0.1262 0.4198 -0.32609
2008 2 19 54515 -0.1255 0.4226 -0.32699
2008 2 20 54516 -0.1246 0.4255 -0.32812
2008 2 21 54517 -0.1238 0.4283 -0.32947
2008 2 22 54518 -0.1228 0.4311 -0.33096
2008 2 23 54519 -0.1219 0.4339 -0.33250
2008 2 24 54520 -0.1209 0.4367 -0.33399
2008 2 25 54521 -0.1198 0.4395 -0.33536
2008 2 26 54522 -0.1187 0.4422 -0.33656
2008 2 27 54523 -0.1175 0.4449 -0.33757
2008 2 28 54524 -0.1163 0.4477 -0.33841
2008 2 29 54525 -0.1151 0.4504 -0.33911
2008 3 1 54526 -0.1138 0.4530 -0.33973
2008 3 2 54527 -0.1124 0.4557 -0.34035
2008 3 3 54528 -0.1110 0.4583 -0.34104
2008 3 4 54529 -0.1096 0.4610 -0.34190
2008 3 5 54530 -0.1081 0.4636 -0.34299
2008 3 6 54531 -0.1066 0.4661 -0.34436
2008 3 7 54532 -0.1050 0.4687 -0.34601
2008 3 8 54533 -0.1034 0.4712 -0.34786
2008 3 9 54534 -0.1017 0.4737 -0.34980
2008 3 10 54535 -0.1000 0.4762 -0.35167
2008 3 11 54536 -0.0983 0.4787 -0.35334
2008 3 12 54537 -0.0965 0.4811 -0.35474
2008 3 13 54538 -0.0947 0.4835 -0.35588
2008 3 14 54539 -0.0928 0.4859 -0.35682
2008 3 15 54540 -0.0909 0.4882 -0.35770
2008 3 16 54541 -0.0890 0.4905 -0.35864
2008 3 17 54542 -0.0870 0.4928 -0.35974
2008 3 18 54543 -0.0849 0.4951 -0.36106
2008 3 19 54544 -0.0829 0.4973 -0.36259
2008 3 20 54545 -0.0808 0.4995 -0.36429
2008 3 21 54546 -0.0786 0.5016 -0.36608
2008 3 22 54547 -0.0764 0.5038 -0.36785
2008 3 23 54548 -0.0742 0.5059 -0.36954
2008 3 24 54549 -0.0719 0.5079 -0.37107
2008 3 25 54550 -0.0697 0.5100 -0.37242
2008 3 26 54551 -0.0673 0.5120 -0.37359
2008 3 27 54552 -0.0650 0.5139 -0.37460
2008 3 28 54553 -0.0626 0.5158 -0.37552
2008 3 29 54554 -0.0601 0.5177 -0.37639
2008 3 30 54555 -0.0577 0.5196 -0.37731
2008 3 31 54556 -0.0552 0.5214 -0.37836
2008 4 1 54557 -0.0526 0.5232 -0.37960
2008 4 2 54558 -0.0501 0.5249 -0.38111
2008 4 3 54559 -0.0475 0.5266 -0.38290
2008 4 4 54560 -0.0449 0.5283 -0.38495
2008 4 5 54561 -0.0422 0.5299 -0.38717
2008 4 6 54562 -0.0395 0.5315 -0.38941
2008 4 7 54563 -0.0368 0.5330 -0.39153
2008 4 8 54564 -0.0341 0.5345 -0.39341
2008 4 9 54565 -0.0314 0.5359 -0.39501
2008 4 10 54566 -0.0286 0.5374 -0.39640
2008 4 11 54567 -0.0258 0.5387 -0.39769
2008 4 12 54568 -0.0229 0.5401 -0.39899
2008 4 13 54569 -0.0201 0.5413 -0.40043
2008 4 14 54570 -0.0172 0.5426 -0.40204
2008 4 15 54571 -0.0143 0.5438 -0.40380
2008 4 16 54572 -0.0114 0.5450 -0.40568
2008 4 17 54573 -0.0084 0.5461 -0.40758
2008 4 18 54574 -0.0055 0.5471 -0.40942
2008 4 19 54575 -0.0025 0.5482 -0.41114
2008 4 20 54576 0.0005 0.5491 -0.41268
2008 4 21 54577 0.0036 0.5501 -0.41401
2008 4 22 54578 0.0066 0.5510 -0.41512
2008 4 23 54579 0.0096 0.5518 -0.41603
2008 4 24 54580 0.0127 0.5526 -0.41678
2008 4 25 54581 0.0158 0.5533 -0.41741
2008 4 26 54582 0.0189 0.5540 -0.41797
2008 4 27 54583 0.0220 0.5547 -0.41855
2008 4 28 54584 0.0251 0.5553 -0.41920
2008 4 29 54585 0.0283 0.5559 -0.42001
2008 4 30 54586 0.0314 0.5564 -0.42103
2008 5 1 54587 0.0346 0.5568 -0.42229
2008 5 2 54588 0.0377 0.5573 -0.42373
2008 5 3 54589 0.0409 0.5576 -0.42527
2008 5 4 54590 0.0441 0.5580 -0.42674
2008 5 5 54591 0.0472 0.5582 -0.42800
2008 5 6 54592 0.0504 0.5585 -0.42896
2008 5 7 54593 0.0536 0.5586 -0.42958
2008 5 8 54594 0.0568 0.5588 -0.42995
2008 5 9 54595 0.0600 0.5589 -0.43020
2008 5 10 54596 0.0632 0.5589 -0.43050
2008 5 11 54597 0.0664 0.5589 -0.43097
2008 5 12 54598 0.0696 0.5588 -0.43168
2008 5 13 54599 0.0729 0.5587 -0.43257
2008 5 14 54600 0.0761 0.5585 -0.43356
2008 5 15 54601 0.0793 0.5583 -0.43455
2008 5 16 54602 0.0825 0.5581 -0.43546
2008 5 17 54603 0.0857 0.5578 -0.43624
2008 5 18 54604 0.0889 0.5574 -0.43679
2008 5 19 54605 0.0920 0.5570 -0.43704
2008 5 20 54606 0.0952 0.5566 -0.43707
2008 5 21 54607 0.0984 0.5561 -0.43691
2008 5 22 54608 0.1016 0.5555 -0.43663
2008 5 23 54609 0.1047 0.5549 -0.43633
2008 5 24 54610 0.1079 0.5543 -0.43607
2008 5 25 54611 0.1110 0.5536 -0.43597
2008 5 26 54612 0.1141 0.5529 -0.43607
2008 5 27 54613 0.1173 0.5521 -0.43640
2008 5 28 54614 0.1204 0.5513 -0.43695
2008 5 29 54615 0.1235 0.5504 -0.43765
2008 5 30 54616 0.1265 0.5495 -0.43843
2008 5 31 54617 0.1296 0.5485 -0.43910
2008 6 1 54618 0.1326 0.5475 -0.43962
2008 6 2 54619 0.1357 0.5464 -0.43991
2008 6 3 54620 0.1387 0.5453 -0.43991
2008 6 4 54621 0.1417 0.5442 -0.43972
2008 6 5 54622 0.1447 0.5430 -0.43941
2008 6 6 54623 0.1476 0.5417 -0.43926
2008 6 7 54624 0.1505 0.5405 -0.43942
2008 6 8 54625 0.1535 0.5391 -0.43992
2008 6 9 54626 0.1564 0.5378 -0.44070
2008 6 10 54627 0.1592 0.5363 -0.44164
2008 6 11 54628 0.1621 0.5349 -0.44263
2008 6 12 54629 0.1649 0.5334 -0.44357
2008 6 13 54630 0.1677 0.5318 -0.44435
2008 6 14 54631 0.1705 0.5302 -0.44496
2008 6 15 54632 0.1732 0.5286 -0.44541
2008 6 16 54633 0.1759 0.5270 -0.44565
2008 6 17 54634 0.1786 0.5252 -0.44576
2008 6 18 54635 0.1813 0.5235 -0.44576
2008 6 19 54636 0.1839 0.5217 -0.44575
2008 6 20 54637 0.1865 0.5199 -0.44582
2008 6 21 54638 0.1891 0.5180 -0.44600
2008 6 22 54639 0.1916 0.5161 -0.44637
2008 6 23 54640 0.1941 0.5141 -0.44694
2008 6 24 54641 0.1966 0.5122 -0.44773
2008 6 25 54642 0.1990 0.5101 -0.44868
2008 6 26 54643 0.2015 0.5081 -0.44976
2008 6 27 54644 0.2038 0.5060 -0.45085
2008 6 28 54645 0.2062 0.5039 -0.45180
2008 6 29 54646 0.2085 0.5017 -0.45254
2008 6 30 54647 0.2107 0.4995 -0.45301
2008 7 1 54648 0.2130 0.4973 -0.45318
2008 7 2 54649 0.2152 0.4950 -0.45318
2008 7 3 54650 0.2173 0.4927 -0.45320
2008 7 4 54651 0.2194 0.4904 -0.45337
2008 7 5 54652 0.2215 0.4880 -0.45370
2008 7 6 54653 0.2235 0.4856 -0.45426
2008 7 7 54654 0.2255 0.4832 -0.45504
2008 7 8 54655 0.2275 0.4807 -0.45579
2008 7 9 54656 0.2294 0.4782 -0.45646
2008 7 10 54657 0.2313 0.4757 -0.45699
2008 7 11 54658 0.2331 0.4732 -0.45729
2008 7 12 54659 0.2349 0.4706 -0.45731
2008 7 13 54660 0.2366 0.4680 -0.45713
2008 7 14 54661 0.2383 0.4654 -0.45674
2008 7 15 54662 0.2399 0.4628 -0.45617
2008 7 16 54663 0.2416 0.4601 -0.45553
2008 7 17 54664 0.2431 0.4574 -0.45491
2008 7 18 54665 0.2446 0.4547 -0.45438
2008 7 19 54666 0.2461 0.4520 -0.45400
2008 7 20 54667 0.2475 0.4492 -0.45390
2008 7 21 54668 0.2489 0.4464 -0.45405
2008 7 22 54669 0.2502 0.4436 -0.45443
2008 7 23 54670 0.2515 0.4408 -0.45496
2008 7 24 54671 0.2527 0.4379 -0.45551
2008 7 25 54672 0.2539 0.4351 -0.45598
2008 7 26 54673 0.2551 0.4322 -0.45618
2008 7 27 54674 0.2562 0.4293 -0.45613
2008 7 28 54675 0.2572 0.4264 -0.45585
2008 7 29 54676 0.2582 0.4235 -0.45542
2008 7 30 54677 0.2591 0.4205 -0.45495
2008 7 31 54678 0.2600 0.4176 -0.45460
2008 8 1 54679 0.2608 0.4146 -0.45448
2008 8 2 54680 0.2616 0.4117 -0.45460
2008 8 3 54681 0.2624 0.4087 -0.45499
2008 8 4 54682 0.2630 0.4057 -0.45553
2008 8 5 54683 0.2637 0.4027 -0.45605
2008 8 6 54684 0.2643 0.3996 -0.45642
2008 8 7 54685 0.2648 0.3966 -0.45666
2008 8 8 54686 0.2653 0.3936 -0.45673
2008 8 9 54687 0.2657 0.3905 -0.45653
2008 8 10 54688 0.2661 0.3875 -0.45624
2008 8 11 54689 0.2664 0.3844 -0.45589
2008 8 12 54690 0.2667 0.3814 -0.45549
2008 8 13 54691 0.2669 0.3783 -0.45514
2008 8 14 54692 0.2671 0.3752 -0.45488
2008 8 15 54693 0.2672 0.3722 -0.45478
2008 8 16 54694 0.2672 0.3691 -0.45490
2008 8 17 54695 0.2672 0.3660 -0.45521
2008 8 18 54696 0.2672 0.3630 -0.45575
2008 8 19 54697 0.2671 0.3599 -0.45642
2008 8 20 54698 0.2670 0.3568 -0.45709
2008 8 21 54699 0.2668 0.3538 -0.45767
2008 8 22 54700 0.2665 0.3507 -0.45812
2008 8 23 54701 0.2662 0.3477 -0.45834
2008 8 24 54702 0.2658 0.3446 -0.45831
2008 8 25 54703 0.2654 0.3416 -0.45813
2008 8 26 54704 0.2650 0.3385 -0.45790
2008 8 27 54705 0.2645 0.3355 -0.45773
2008 8 28 54706 0.2639 0.3325 -0.45771
2008 8 29 54707 0.2633 0.3295 -0.45793
2008 8 30 54708 0.2626 0.3265 -0.45840
2008 8 31 54709 0.2619 0.3235 -0.45911
2008 9 1 54710 0.2611 0.3205 -0.45987
2008 9 2 54711 0.2603 0.3175 -0.46057
2008 9 3 54712 0.2594 0.3146 -0.46107
2008 9 4 54713 0.2585 0.3116 -0.46134
2008 9 5 54714 0.2575 0.3087 -0.46140
2008 9 6 54715 0.2565 0.3058 -0.46126
2008 9 7 54716 0.2554 0.3029 -0.46096
2008 9 8 54717 0.2543 0.3000 -0.46067
2008 9 9 54718 0.2531 0.2972 -0.46044
2008 9 10 54719 0.2519 0.2943 -0.46031
2008 9 11 54720 0.2506 0.2915 -0.46038
2008 9 12 54721 0.2493 0.2887 -0.46059
2008 9 13 54722 0.2479 0.2859 -0.46110
2008 9 14 54723 0.2465 0.2832 -0.46187
2008 9 15 54724 0.2451 0.2804 -0.46283
2008 9 16 54725 0.2435 0.2777 -0.46392
2008 9 17 54726 0.2420 0.2750 -0.46500
2008 9 18 54727 0.2404 0.2723 -0.46601
2008 9 19 54728 0.2387 0.2697 -0.46678
2008 9 20 54729 0.2370 0.2671 -0.46730
2008 9 21 54730 0.2353 0.2645 -0.46758
2008 9 22 54731 0.2335 0.2619 -0.46774
2008 9 23 54732 0.2317 0.2594 -0.46797
2008 9 24 54733 0.2298 0.2568 -0.46838
2008 9 25 54734 0.2279 0.2544 -0.46905
2008 9 26 54735 0.2259 0.2519 -0.47001
2008 9 27 54736 0.2239 0.2495 -0.47125
2008 9 28 54737 0.2219 0.2471 -0.47259
2008 9 29 54738 0.2198 0.2447 -0.47397
2008 9 30 54739 0.2177 0.2424 -0.47525
2008 10 1 54740 0.2155 0.2401 -0.47634
2008 10 2 54741 0.2133 0.2378 -0.47718
2008 10 3 54742 0.2111 0.2356 -0.47780
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)
54358 -68.80 .22 -6.06 .12
54359 -68.89 .13 -6.29 .16
54360 -68.71 .13 -6.39 .16
54361 -68.46 .74 -6.51 .18
54362 -68.32 .19 -6.71 .13
54363 -68.26 .19 -6.85 .13
54364 -68.13 .19 -6.79 .13
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54315 -66.7 -6.7
54316 -67.2 -6.8
54317 -67.3 -6.8
54318 -67.1 -6.8
54319 -66.8 -6.8
54320 -66.6 -6.8
54321 -66.6 -6.9
54322 -66.6 -7.1
54323 -66.5 -7.1
54324 -66.3 -7.0
54325 -66.2 -6.7
54326 -66.2 -6.4
54327 -66.5 -6.2
54328 -66.9 -6.2
54329 -67.4 -6.4
54330 -67.8 -6.5
54331 -67.9 -6.6
54332 -67.8 -6.6
54333 -67.8 -6.6
54334 -67.9 -6.8
54335 -68.0 -7.0
54336 -67.9 -7.0
54337 -67.8 -6.9
54338 -67.7 -6.8
54339 -67.7 -6.8
54340 -67.7 -6.8
54341 -67.9 -6.7
54342 -68.3 -6.5
54343 -68.8 -6.5
54344 -69.2 -6.5
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54358 -0.194 0.088 -0.263 0.120
54359 -0.200 0.052 -0.282 0.160
54360 -0.200 0.052 -0.283 0.160
54361 -0.196 0.294 -0.292 0.180
54362 -0.187 0.076 -0.312 0.130
54363 -0.179 0.076 -0.317 0.130
54364 -0.167 0.076 -0.302 0.130
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54315 -0.18 -0.47
54316 -0.22 -0.48
54317 -0.18 -0.39
54318 -0.11 -0.35
54319 -0.03 -0.35
54320 0.03 -0.36
54321 0.05 -0.41
54322 0.07 -0.51
54323 0.08 -0.45
54324 0.08 -0.41
54325 0.04 -0.36
54326 0.02 -0.40
54327 -0.02 -0.43
54328 -0.02 -0.42
54329 -0.01 -0.43
54330 -0.00 -0.32
54331 0.01 -0.33
54332 0.02 -0.33
54333 -0.02 -0.29
54334 -0.06 -0.35
54335 -0.09 -0.42
54336 -0.06 -0.40
54337 -0.04 -0.38
54338 0.00 -0.36
54339 0.03 -0.41
54340 0.04 -0.48
54341 -0.00 -0.51
54342 -0.07 -0.41
54343 -0.12 -0.37
54344 -0.14 -0.24
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.