**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
2 August 2007 Vol. XX No. 031
______________________________________________________________________
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. 031, on 02 August 2007, we have *
* incorporated the new GSFC VLBI solutions gsf2007c and gsfint21. *
* The effect appears to be less than 0.10 mas in polar motion and *
* 10 us in UT1-UTC. *
**********************************************************************
________________________________________________________________________
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 7 27 54308 .22998 .00010 .34840 .00010 -.161936 .000009
7 7 28 54309 .22922 .00009 .34580 .00009 -.161349 .000010
7 7 29 54310 .22850 .00009 .34291 .00009 -.160925 .000014
7 7 30 54311 .22806 .00009 .34000 .00010 -.160736 .000014
7 7 31 54312 .22756 .00009 .33711 .00010 -.160828 .000014
7 8 1 54313 .22704 .00009 .33424 .00010 -.161200 .000048
7 8 2 54314 .22655 .00009 .33144 .00010 -.161766 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
7 6 4 54255 .1539 .4574 -.14455
7 6 5 54256 .1564 .4560 -.14493
7 6 6 54257 .1587 .4548 -.14553
7 6 7 54258 .1606 .4532 -.14628
7 6 8 54259 .1624 .4515 -.14726
7 6 9 54260 .1644 .4501 -.14833
7 6 10 54261 .1667 .4487 -.14947
7 6 11 54262 .1691 .4473 -.15052
7 6 12 54263 .1713 .4455 -.15145
7 6 13 54264 .1733 .4433 -.15209
7 6 14 54265 .1751 .4412 -.15232
7 6 15 54266 .1766 .4392 -.15238
7 6 16 54267 .1784 .4372 -.15232
7 6 17 54268 .1803 .4354 -.15232
7 6 18 54269 .1825 .4336 -.15250
7 6 19 54270 .1848 .4320 -.15287
7 6 20 54271 .1871 .4307 -.15343
7 6 21 54272 .1894 .4293 -.15413
7 6 22 54273 .1915 .4273 -.15489
7 6 23 54274 .1936 .4250 -.15561
7 6 24 54275 .1957 .4229 -.15621
7 6 25 54276 .1980 .4209 -.15674
7 6 26 54277 .2007 .4192 -.15710
7 6 27 54278 .2032 .4178 -.15732
7 6 28 54279 .2052 .4164 -.15743
7 6 29 54280 .2067 .4149 -.15743
7 6 30 54281 .2079 .4133 -.15739
7 7 1 54282 .2087 .4117 -.15735
7 7 2 54283 .2091 .4096 -.15740
7 7 3 54284 .2098 .4073 -.15774
_______________________________________________________________________
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 = .0565 + .0462 cos A + .0724 sin A + .1177 cos C - .0750 sin C
y = .3442 + .0661 cos A - .0430 sin A - .0750 cos C - .1177 sin C
UT1-UTC = -.1726 - .00096 (MJD - 54319) - (UT2-UT1)
where A = 2*pi*(MJD-54314)/365.25 and C = 2*pi*(MJD-54314)/435.
TAI-UTC(MJD 54315) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54314)**0.80 S t = 0.00025 (MJD-54314)**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 8 3 54315 0.2261 0.3287 -0.16241
2007 8 4 54316 0.2255 0.3261 -0.16304
2007 8 5 54317 0.2249 0.3234 -0.16353
2007 8 6 54318 0.2243 0.3207 -0.16376
2007 8 7 54319 0.2237 0.3180 -0.16372
2007 8 8 54320 0.2230 0.3153 -0.16344
2007 8 9 54321 0.2222 0.3127 -0.16304
2007 8 10 54322 0.2215 0.3100 -0.16262
2007 8 11 54323 0.2206 0.3074 -0.16232
2007 8 12 54324 0.2198 0.3048 -0.16223
2007 8 13 54325 0.2189 0.3022 -0.16234
2007 8 14 54326 0.2180 0.2996 -0.16264
2007 8 15 54327 0.2170 0.2971 -0.16307
2007 8 16 54328 0.2160 0.2945 -0.16357
2007 8 17 54329 0.2149 0.2920 -0.16405
2007 8 18 54330 0.2138 0.2894 -0.16445
2007 8 19 54331 0.2127 0.2869 -0.16473
2007 8 20 54332 0.2115 0.2845 -0.16487
2007 8 21 54333 0.2103 0.2820 -0.16487
2007 8 22 54334 0.2090 0.2796 -0.16476
2007 8 23 54335 0.2077 0.2771 -0.16459
2007 8 24 54336 0.2063 0.2747 -0.16445
2007 8 25 54337 0.2049 0.2723 -0.16444
2007 8 26 54338 0.2035 0.2700 -0.16464
2007 8 27 54339 0.2020 0.2676 -0.16515
2007 8 28 54340 0.2005 0.2653 -0.16600
2007 8 29 54341 0.1990 0.2630 -0.16714
2007 8 30 54342 0.1974 0.2607 -0.16847
2007 8 31 54343 0.1957 0.2585 -0.16983
2007 9 1 54344 0.1941 0.2563 -0.17105
2007 9 2 54345 0.1923 0.2541 -0.17200
2007 9 3 54346 0.1906 0.2519 -0.17264
2007 9 4 54347 0.1888 0.2498 -0.17303
2007 9 5 54348 0.1870 0.2476 -0.17326
2007 9 6 54349 0.1851 0.2456 -0.17346
2007 9 7 54350 0.1832 0.2435 -0.17375
2007 9 8 54351 0.1813 0.2415 -0.17421
2007 9 9 54352 0.1793 0.2395 -0.17489
2007 9 10 54353 0.1773 0.2375 -0.17578
2007 9 11 54354 0.1753 0.2355 -0.17683
2007 9 12 54355 0.1732 0.2336 -0.17797
2007 9 13 54356 0.1711 0.2318 -0.17911
2007 9 14 54357 0.1689 0.2299 -0.18020
2007 9 15 54358 0.1667 0.2281 -0.18115
2007 9 16 54359 0.1645 0.2263 -0.18196
2007 9 17 54360 0.1623 0.2246 -0.18263
2007 9 18 54361 0.1600 0.2228 -0.18317
2007 9 19 54362 0.1577 0.2212 -0.18363
2007 9 20 54363 0.1554 0.2195 -0.18408
2007 9 21 54364 0.1530 0.2179 -0.18459
2007 9 22 54365 0.1506 0.2163 -0.18524
2007 9 23 54366 0.1482 0.2148 -0.18614
2007 9 24 54367 0.1458 0.2133 -0.18735
2007 9 25 54368 0.1433 0.2118 -0.18888
2007 9 26 54369 0.1408 0.2104 -0.19066
2007 9 27 54370 0.1382 0.2090 -0.19255
2007 9 28 54371 0.1357 0.2077 -0.19436
2007 9 29 54372 0.1331 0.2064 -0.19594
2007 9 30 54373 0.1305 0.2051 -0.19720
2007 10 1 54374 0.1279 0.2039 -0.19816
2007 10 2 54375 0.1252 0.2027 -0.19890
2007 10 3 54376 0.1226 0.2015 -0.19956
2007 10 4 54377 0.1199 0.2004 -0.20028
2007 10 5 54378 0.1172 0.1993 -0.20115
2007 10 6 54379 0.1144 0.1983 -0.20223
2007 10 7 54380 0.1117 0.1973 -0.20350
2007 10 8 54381 0.1089 0.1964 -0.20494
2007 10 9 54382 0.1061 0.1955 -0.20646
2007 10 10 54383 0.1033 0.1946 -0.20799
2007 10 11 54384 0.1005 0.1938 -0.20945
2007 10 12 54385 0.0977 0.1930 -0.21079
2007 10 13 54386 0.0948 0.1923 -0.21195
2007 10 14 54387 0.0919 0.1916 -0.21294
2007 10 15 54388 0.0891 0.1910 -0.21376
2007 10 16 54389 0.0862 0.1904 -0.21446
2007 10 17 54390 0.0833 0.1898 -0.21511
2007 10 18 54391 0.0803 0.1893 -0.21576
2007 10 19 54392 0.0774 0.1889 -0.21652
2007 10 20 54393 0.0745 0.1884 -0.21745
2007 10 21 54394 0.0715 0.1881 -0.21863
2007 10 22 54395 0.0686 0.1877 -0.22012
2007 10 23 54396 0.0656 0.1874 -0.22187
2007 10 24 54397 0.0626 0.1872 -0.22380
2007 10 25 54398 0.0597 0.1870 -0.22574
2007 10 26 54399 0.0567 0.1869 -0.22753
2007 10 27 54400 0.0537 0.1868 -0.22903
2007 10 28 54401 0.0507 0.1867 -0.23020
2007 10 29 54402 0.0477 0.1867 -0.23109
2007 10 30 54403 0.0447 0.1867 -0.23182
2007 10 31 54404 0.0418 0.1868 -0.23254
2007 11 1 54405 0.0388 0.1869 -0.23338
2007 11 2 54406 0.0358 0.1871 -0.23440
2007 11 3 54407 0.0328 0.1873 -0.23560
2007 11 4 54408 0.0298 0.1876 -0.23696
2007 11 5 54409 0.0268 0.1879 -0.23841
2007 11 6 54410 0.0238 0.1882 -0.23988
2007 11 7 54411 0.0208 0.1886 -0.24131
2007 11 8 54412 0.0179 0.1891 -0.24263
2007 11 9 54413 0.0149 0.1896 -0.24380
2007 11 10 54414 0.0119 0.1901 -0.24481
2007 11 11 54415 0.0090 0.1907 -0.24565
2007 11 12 54416 0.0060 0.1913 -0.24636
2007 11 13 54417 0.0031 0.1920 -0.24701
2007 11 14 54418 0.0002 0.1927 -0.24765
2007 11 15 54419 -0.0028 0.1935 -0.24837
2007 11 16 54420 -0.0057 0.1943 -0.24924
2007 11 17 54421 -0.0086 0.1951 -0.25033
2007 11 18 54422 -0.0115 0.1960 -0.25168
2007 11 19 54423 -0.0143 0.1970 -0.25328
2007 11 20 54424 -0.0172 0.1979 -0.25509
2007 11 21 54425 -0.0200 0.1990 -0.25698
2007 11 22 54426 -0.0228 0.2000 -0.25881
2007 11 23 54427 -0.0256 0.2012 -0.26042
2007 11 24 54428 -0.0284 0.2023 -0.26174
2007 11 25 54429 -0.0312 0.2035 -0.26276
2007 11 26 54430 -0.0340 0.2048 -0.26358
2007 11 27 54431 -0.0367 0.2060 -0.26434
2007 11 28 54432 -0.0394 0.2074 -0.26517
2007 11 29 54433 -0.0421 0.2087 -0.26618
2007 11 30 54434 -0.0448 0.2101 -0.26737
2007 12 1 54435 -0.0474 0.2116 -0.26872
2007 12 2 54436 -0.0501 0.2131 -0.27016
2007 12 3 54437 -0.0527 0.2146 -0.27161
2007 12 4 54438 -0.0552 0.2162 -0.27301
2007 12 5 54439 -0.0578 0.2178 -0.27429
2007 12 6 54440 -0.0603 0.2194 -0.27541
2007 12 7 54441 -0.0628 0.2211 -0.27635
2007 12 8 54442 -0.0653 0.2229 -0.27712
2007 12 9 54443 -0.0677 0.2246 -0.27772
2007 12 10 54444 -0.0701 0.2264 -0.27823
2007 12 11 54445 -0.0725 0.2283 -0.27871
2007 12 12 54446 -0.0749 0.2302 -0.27924
2007 12 13 54447 -0.0772 0.2321 -0.27990
2007 12 14 54448 -0.0795 0.2340 -0.28074
2007 12 15 54449 -0.0818 0.2360 -0.28181
2007 12 16 54450 -0.0840 0.2380 -0.28312
2007 12 17 54451 -0.0862 0.2401 -0.28461
2007 12 18 54452 -0.0884 0.2422 -0.28620
2007 12 19 54453 -0.0905 0.2443 -0.28776
2007 12 20 54454 -0.0926 0.2464 -0.28917
2007 12 21 54455 -0.0947 0.2486 -0.29033
2007 12 22 54456 -0.0967 0.2508 -0.29122
2007 12 23 54457 -0.0987 0.2531 -0.29187
2007 12 24 54458 -0.1006 0.2554 -0.29242
2007 12 25 54459 -0.1025 0.2577 -0.29301
2007 12 26 54460 -0.1044 0.2600 -0.29375
2007 12 27 54461 -0.1062 0.2624 -0.29470
2007 12 28 54462 -0.1080 0.2648 -0.29583
2007 12 29 54463 -0.1098 0.2672 -0.29710
2007 12 30 54464 -0.1115 0.2697 -0.29839
2007 12 31 54465 -0.1132 0.2721 -0.29965
2008 1 1 54466 -0.1148 0.2747 -0.30079
2008 1 2 54467 -0.1164 0.2772 -0.30178
2008 1 3 54468 -0.1180 0.2797 -0.30259
2008 1 4 54469 -0.1195 0.2823 -0.30322
2008 1 5 54470 -0.1210 0.2849 -0.30369
2008 1 6 54471 -0.1224 0.2875 -0.30404
2008 1 7 54472 -0.1238 0.2902 -0.30435
2008 1 8 54473 -0.1251 0.2929 -0.30471
2008 1 9 54474 -0.1264 0.2955 -0.30518
2008 1 10 54475 -0.1276 0.2983 -0.30584
2008 1 11 54476 -0.1288 0.3010 -0.30674
2008 1 12 54477 -0.1300 0.3037 -0.30788
2008 1 13 54478 -0.1311 0.3065 -0.30921
2008 1 14 54479 -0.1322 0.3093 -0.31064
2008 1 15 54480 -0.1332 0.3121 -0.31207
2008 1 16 54481 -0.1342 0.3149 -0.31337
2008 1 17 54482 -0.1351 0.3177 -0.31444
2008 1 18 54483 -0.1360 0.3206 -0.31526
2008 1 19 54484 -0.1368 0.3234 -0.31586
2008 1 20 54485 -0.1376 0.3263 -0.31632
2008 1 21 54486 -0.1383 0.3292 -0.31678
2008 1 22 54487 -0.1390 0.3321 -0.31736
2008 1 23 54488 -0.1396 0.3350 -0.31815
2008 1 24 54489 -0.1402 0.3379 -0.31915
2008 1 25 54490 -0.1407 0.3408 -0.32033
2008 1 26 54491 -0.1412 0.3438 -0.32158
2008 1 27 54492 -0.1417 0.3467 -0.32282
2008 1 28 54493 -0.1421 0.3497 -0.32395
2008 1 29 54494 -0.1424 0.3526 -0.32492
2008 1 30 54495 -0.1427 0.3556 -0.32568
2008 1 31 54496 -0.1429 0.3585 -0.32623
2008 2 1 54497 -0.1431 0.3615 -0.32658
2008 2 2 54498 -0.1433 0.3645 -0.32676
2008 2 3 54499 -0.1434 0.3675 -0.32683
2008 2 4 54500 -0.1434 0.3704 -0.32688
2008 2 5 54501 -0.1434 0.3734 -0.32700
2008 2 6 54502 -0.1433 0.3764 -0.32727
2008 2 7 54503 -0.1432 0.3794 -0.32779
2008 2 8 54504 -0.1431 0.3824 -0.32858
2008 2 9 54505 -0.1429 0.3853 -0.32965
2008 2 10 54506 -0.1426 0.3883 -0.33093
2008 2 11 54507 -0.1423 0.3913 -0.33232
2008 2 12 54508 -0.1419 0.3942 -0.33369
2008 2 13 54509 -0.1415 0.3972 -0.33495
2008 2 14 54510 -0.1411 0.4002 -0.33607
2008 2 15 54511 -0.1406 0.4031 -0.33707
2008 2 16 54512 -0.1400 0.4060 -0.33800
2008 2 17 54513 -0.1394 0.4090 -0.33898
2008 2 18 54514 -0.1387 0.4119 -0.34010
2008 2 19 54515 -0.1380 0.4148 -0.34144
2008 2 20 54516 -0.1373 0.4177 -0.34303
2008 2 21 54517 -0.1365 0.4206 -0.34482
2008 2 22 54518 -0.1356 0.4235 -0.34674
2008 2 23 54519 -0.1347 0.4263 -0.34869
2008 2 24 54520 -0.1337 0.4292 -0.35057
2008 2 25 54521 -0.1327 0.4320 -0.35231
2008 2 26 54522 -0.1317 0.4349 -0.35387
2008 2 27 54523 -0.1306 0.4377 -0.35522
2008 2 28 54524 -0.1294 0.4404 -0.35638
2008 2 29 54525 -0.1283 0.4432 -0.35737
2008 3 1 54526 -0.1270 0.4460 -0.35826
2008 3 2 54527 -0.1257 0.4487 -0.35909
2008 3 3 54528 -0.1244 0.4514 -0.35995
2008 3 4 54529 -0.1230 0.4541 -0.36093
2008 3 5 54530 -0.1216 0.4568 -0.36209
2008 3 6 54531 -0.1201 0.4595 -0.36349
2008 3 7 54532 -0.1186 0.4621 -0.36515
2008 3 8 54533 -0.1171 0.4647 -0.36700
2008 3 9 54534 -0.1154 0.4673 -0.36891
2008 3 10 54535 -0.1138 0.4699 -0.37081
2008 3 11 54536 -0.1121 0.4724 -0.37255
2008 3 12 54537 -0.1104 0.4749 -0.37405
2008 3 13 54538 -0.1086 0.4774 -0.37530
2008 3 14 54539 -0.1068 0.4799 -0.37637
2008 3 15 54540 -0.1049 0.4823 -0.37737
2008 3 16 54541 -0.1030 0.4847 -0.37831
2008 3 17 54542 -0.1011 0.4871 -0.37939
2008 3 18 54543 -0.0991 0.4894 -0.38067
2008 3 19 54544 -0.0971 0.4917 -0.38214
2008 3 20 54545 -0.0950 0.4940 -0.38377
2008 3 21 54546 -0.0929 0.4963 -0.38549
2008 3 22 54547 -0.0908 0.4985 -0.38720
2008 3 23 54548 -0.0886 0.5007 -0.38881
2008 3 24 54549 -0.0864 0.5028 -0.39031
2008 3 25 54550 -0.0841 0.5049 -0.39166
2008 3 26 54551 -0.0818 0.5070 -0.39279
2008 3 27 54552 -0.0795 0.5091 -0.39370
2008 3 28 54553 -0.0771 0.5111 -0.39454
2008 3 29 54554 -0.0747 0.5131 -0.39536
2008 3 30 54555 -0.0723 0.5150 -0.39614
2008 3 31 54556 -0.0698 0.5169 -0.39711
2008 4 1 54557 -0.0674 0.5188 -0.39833
2008 4 2 54558 -0.0648 0.5206 -0.39979
2008 4 3 54559 -0.0623 0.5224 -0.40156
2008 4 4 54560 -0.0597 0.5242 -0.40356
2008 4 5 54561 -0.0571 0.5259 -0.40569
2008 4 6 54562 -0.0544 0.5276 -0.40782
2008 4 7 54563 -0.0517 0.5292 -0.40974
2008 4 8 54564 -0.0490 0.5308 -0.41140
2008 4 9 54565 -0.0463 0.5324 -0.41273
2008 4 10 54566 -0.0436 0.5339 -0.41374
2008 4 11 54567 -0.0408 0.5354 -0.41459
2008 4 12 54568 -0.0380 0.5368 -0.41547
2008 4 13 54569 -0.0351 0.5382 -0.41645
2008 4 14 54570 -0.0323 0.5395 -0.41759
2008 4 15 54571 -0.0294 0.5408 -0.41891
2008 4 16 54572 -0.0265 0.5421 -0.42039
2008 4 17 54573 -0.0236 0.5433 -0.42192
2008 4 18 54574 -0.0206 0.5444 -0.42342
2008 4 19 54575 -0.0177 0.5456 -0.42480
2008 4 20 54576 -0.0147 0.5466 -0.42605
2008 4 21 54577 -0.0117 0.5477 -0.42716
2008 4 22 54578 -0.0087 0.5487 -0.42805
2008 4 23 54579 -0.0056 0.5496 -0.42873
2008 4 24 54580 -0.0026 0.5505 -0.42922
2008 4 25 54581 0.0005 0.5513 -0.42957
2008 4 26 54582 0.0036 0.5521 -0.42991
2008 4 27 54583 0.0067 0.5529 -0.43030
2008 4 28 54584 0.0098 0.5536 -0.43081
2008 4 29 54585 0.0129 0.5542 -0.43160
2008 4 30 54586 0.0160 0.5548 -0.43267
2008 5 1 54587 0.0192 0.5554 -0.43401
2008 5 2 54588 0.0223 0.5559 -0.43557
2008 5 3 54589 0.0255 0.5564 -0.43712
2008 5 4 54590 0.0287 0.5568 -0.43864
2008 5 5 54591 0.0319 0.5572 -0.43995
2008 5 6 54592 0.0350 0.5575 -0.44096
2008 5 7 54593 0.0382 0.5578 -0.44169
2008 5 8 54594 0.0414 0.5580 -0.44222
2008 5 9 54595 0.0446 0.5582 -0.44276
2008 5 10 54596 0.0478 0.5583 -0.44337
2008 5 11 54597 0.0510 0.5584 -0.44412
2008 5 12 54598 0.0542 0.5584 -0.44501
2008 5 13 54599 0.0574 0.5584 -0.44601
2008 5 14 54600 0.0606 0.5583 -0.44711
2008 5 15 54601 0.0639 0.5582 -0.44822
2008 5 16 54602 0.0671 0.5580 -0.44928
2008 5 17 54603 0.0703 0.5578 -0.45025
2008 5 18 54604 0.0735 0.5575 -0.45110
2008 5 19 54605 0.0766 0.5572 -0.45175
2008 5 20 54606 0.0798 0.5568 -0.45222
2008 5 21 54607 0.0830 0.5564 -0.45255
2008 5 22 54608 0.0862 0.5560 -0.45273
2008 5 23 54609 0.0894 0.5555 -0.45285
2008 5 24 54610 0.0925 0.5549 -0.45297
2008 5 25 54611 0.0957 0.5543 -0.45320
2008 5 26 54612 0.0988 0.5536 -0.45358
2008 5 27 54613 0.1019 0.5529 -0.45416
2008 5 28 54614 0.1050 0.5522 -0.45497
2008 5 29 54615 0.1081 0.5514 -0.45597
2008 5 30 54616 0.1112 0.5505 -0.45712
2008 5 31 54617 0.1143 0.5496 -0.45832
2008 6 1 54618 0.1174 0.5487 -0.45951
2008 6 2 54619 0.1204 0.5477 -0.46050
2008 6 3 54620 0.1234 0.5467 -0.46119
2008 6 4 54621 0.1264 0.5456 -0.46166
2008 6 5 54622 0.1294 0.5445 -0.46202
2008 6 6 54623 0.1324 0.5433 -0.46244
2008 6 7 54624 0.1354 0.5421 -0.46296
2008 6 8 54625 0.1383 0.5408 -0.46361
2008 6 9 54626 0.1412 0.5395 -0.46436
2008 6 10 54627 0.1441 0.5381 -0.46520
2008 6 11 54628 0.1470 0.5367 -0.46603
2008 6 12 54629 0.1498 0.5353 -0.46679
2008 6 13 54630 0.1526 0.5338 -0.46745
2008 6 14 54631 0.1554 0.5323 -0.46787
2008 6 15 54632 0.1582 0.5307 -0.46801
2008 6 16 54633 0.1609 0.5291 -0.46795
2008 6 17 54634 0.1636 0.5274 -0.46770
2008 6 18 54635 0.1663 0.5257 -0.46731
2008 6 19 54636 0.1690 0.5240 -0.46685
2008 6 20 54637 0.1716 0.5222 -0.46641
2008 6 21 54638 0.1742 0.5204 -0.46611
2008 6 22 54639 0.1768 0.5185 -0.46595
2008 6 23 54640 0.1793 0.5166 -0.46596
2008 6 24 54641 0.1818 0.5147 -0.46620
2008 6 25 54642 0.1843 0.5127 -0.46659
2008 6 26 54643 0.1867 0.5107 -0.46708
2008 6 27 54644 0.1891 0.5087 -0.46761
2008 6 28 54645 0.1915 0.5066 -0.46809
2008 6 29 54646 0.1938 0.5044 -0.46841
2008 6 30 54647 0.1961 0.5023 -0.46854
2008 7 1 54648 0.1983 0.5001 -0.46836
2008 7 2 54649 0.2006 0.4979 -0.46801
2008 7 3 54650 0.2028 0.4956 -0.46766
2008 7 4 54651 0.2049 0.4933 -0.46745
2008 7 5 54652 0.2070 0.4910 -0.46744
2008 7 6 54653 0.2091 0.4886 -0.46763
2008 7 7 54654 0.2111 0.4862 -0.46797
2008 7 8 54655 0.2131 0.4838 -0.46836
2008 7 9 54656 0.2150 0.4813 -0.46870
2008 7 10 54657 0.2169 0.4788 -0.46886
2008 7 11 54658 0.2188 0.4763 -0.46882
2008 7 12 54659 0.2206 0.4738 -0.46861
2008 7 13 54660 0.2224 0.4712 -0.46818
2008 7 14 54661 0.2241 0.4686 -0.46764
2008 7 15 54662 0.2258 0.4660 -0.46702
2008 7 16 54663 0.2274 0.4633 -0.46634
2008 7 17 54664 0.2290 0.4606 -0.46569
2008 7 18 54665 0.2306 0.4579 -0.46512
2008 7 19 54666 0.2321 0.4552 -0.46475
2008 7 20 54667 0.2335 0.4525 -0.46462
2008 7 21 54668 0.2349 0.4497 -0.46472
2008 7 22 54669 0.2363 0.4469 -0.46499
2008 7 23 54670 0.2376 0.4441 -0.46541
2008 7 24 54671 0.2389 0.4412 -0.46583
2008 7 25 54672 0.2401 0.4384 -0.46614
2008 7 26 54673 0.2413 0.4355 -0.46633
2008 7 27 54674 0.2424 0.4326 -0.46633
2008 7 28 54675 0.2435 0.4297 -0.46614
2008 7 29 54676 0.2445 0.4268 -0.46577
2008 7 30 54677 0.2455 0.4238 -0.46535
2008 7 31 54678 0.2464 0.4209 -0.46503
2008 8 1 54679 0.2473 0.4179 -0.46494
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)
54295 -62.91 .74 -7.21 .19
54296 -62.72 .22 -7.10 .12
54297 -62.56 .22 -6.88 .12
54298 -62.63 .27 -6.63 .34
54299 -63.03 .26 -6.45 .34
54300 -63.68 .26 -6.44 .34
54301 -64.31 .26 -6.60 .34
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54255 -56.6 -7.3
54256 -56.8 -7.3
54257 -56.9 -7.3
54258 -56.8 -7.3
54259 -56.6 -7.3
54260 -56.5 -7.2
54261 -56.8 -7.1
54262 -57.4 -6.9
54263 -58.1 -6.9
54264 -58.5 -6.9
54265 -58.7 -7.1
54266 -58.7 -7.2
54267 -58.5 -7.2
54268 -58.2 -7.2
54269 -57.8 -7.2
54270 -57.7 -7.1
54271 -58.1 -6.8
54272 -58.7 -6.7
54273 -59.3 -6.7
54274 -59.6 -6.8
54275 -59.8 -6.8
54276 -59.9 -6.8
54277 -60.0 -6.8
54278 -60.1 -7.0
54279 -60.2 -7.2
54280 -60.4 -7.3
54281 -60.6 -7.2
54282 -60.8 -6.9
54283 -61.0 -6.8
54284 -61.1 -6.8
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54295 -0.007 0.294 -0.534 0.190
54296 0.014 0.088 -0.517 0.120
54297 0.017 0.088 -0.502 0.120
54298 0.004 0.107 -0.494 0.340
54299 -0.012 0.103 -0.469 0.340
54300 -0.031 0.103 -0.437 0.340
54301 -0.050 0.103 -0.430 0.340
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54255 0.14 -0.38
54256 0.07 -0.42
54257 0.05 -0.37
54258 0.08 -0.33
54259 0.14 -0.34
54260 0.20 -0.35
54261 0.19 -0.45
54262 0.15 -0.45
54263 0.08 -0.51
54264 0.07 -0.38
54265 0.05 -0.34
54266 0.04 -0.27
54267 0.05 -0.22
54268 0.05 -0.24
54269 0.08 -0.35
54270 0.13 -0.47
54271 0.17 -0.42
54272 0.20 -0.46
54273 0.16 -0.42
54274 0.10 -0.41
54275 0.02 -0.36
54276 0.01 -0.38
54277 0.04 -0.37
54278 0.11 -0.44
54279 0.18 -0.44
54280 0.21 -0.45
54281 0.19 -0.45
54282 0.12 -0.37
54283 0.04 -0.46
54284 0.01 -0.53
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.