**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
26 July 2007 Vol. XX 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 14 June 2007 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* As of Bulletin A Vol. XX, No. 030, on 26 July 2007, we have *
* incorporated the new USNO VLBI solutions usno2007b and int2007b. *
* 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 20 54301 .22784 .00009 .36539 .00010 -.163266 .000004
7 7 21 54302 .22847 .00009 .36257 .00010 -.163558 .000006
7 7 22 54303 .22908 .00009 .35968 .00010 -.163727 .000008
7 7 23 54304 .22968 .00009 .35706 .00010 -.163712 .000008
7 7 24 54305 .23009 .00009 .35499 .00010 -.163487 .000008
7 7 25 54306 .23020 .00009 .35292 .00010 -.163086 .000048
7 7 26 54307 .23022 .00009 .35063 .00010 -.162531 .000057
_______________________________________________________________________
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 = .0619 + .0376 cos A + .0783 sin A + .1248 cos C - .0637 sin C
y = .3461 + .0716 cos A - .0352 sin A - .0637 cos C - .1248 sin C
UT1-UTC = -.1677 - .00096 (MJD - 54312) - (UT2-UT1)
where A = 2*pi*(MJD-54307)/365.25 and C = 2*pi*(MJD-54307)/435.
TAI-UTC(MJD 54308) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54307)**0.80 S t = 0.00025 (MJD-54307)**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 7 27 54308 0.2301 0.3482 -0.16191
2007 7 28 54309 0.2301 0.3456 -0.16133
2007 7 29 54310 0.2300 0.3430 -0.16091
2007 7 30 54311 0.2299 0.3402 -0.16074
2007 7 31 54312 0.2297 0.3376 -0.16086
2007 8 1 54313 0.2295 0.3349 -0.16126
2007 8 2 54314 0.2292 0.3323 -0.16186
2007 8 3 54315 0.2288 0.3297 -0.16253
2007 8 4 54316 0.2284 0.3270 -0.16317
2007 8 5 54317 0.2280 0.3244 -0.16364
2007 8 6 54318 0.2275 0.3217 -0.16387
2007 8 7 54319 0.2269 0.3190 -0.16385
2007 8 8 54320 0.2263 0.3163 -0.16363
2007 8 9 54321 0.2257 0.3137 -0.16330
2007 8 10 54322 0.2250 0.3110 -0.16300
2007 8 11 54323 0.2243 0.3084 -0.16284
2007 8 12 54324 0.2235 0.3058 -0.16289
2007 8 13 54325 0.2226 0.3031 -0.16317
2007 8 14 54326 0.2218 0.3005 -0.16368
2007 8 15 54327 0.2208 0.2979 -0.16433
2007 8 16 54328 0.2199 0.2953 -0.16506
2007 8 17 54329 0.2188 0.2927 -0.16578
2007 8 18 54330 0.2178 0.2902 -0.16641
2007 8 19 54331 0.2167 0.2876 -0.16690
2007 8 20 54332 0.2155 0.2851 -0.16723
2007 8 21 54333 0.2143 0.2826 -0.16740
2007 8 22 54334 0.2131 0.2801 -0.16743
2007 8 23 54335 0.2118 0.2776 -0.16738
2007 8 24 54336 0.2105 0.2751 -0.16732
2007 8 25 54337 0.2091 0.2727 -0.16735
2007 8 26 54338 0.2077 0.2703 -0.16757
2007 8 27 54339 0.2062 0.2679 -0.16806
2007 8 28 54340 0.2047 0.2655 -0.16887
2007 8 29 54341 0.2032 0.2631 -0.16997
2007 8 30 54342 0.2016 0.2608 -0.17126
2007 8 31 54343 0.2000 0.2585 -0.17259
2007 9 1 54344 0.1983 0.2562 -0.17378
2007 9 2 54345 0.1966 0.2539 -0.17471
2007 9 3 54346 0.1949 0.2517 -0.17536
2007 9 4 54347 0.1931 0.2495 -0.17575
2007 9 5 54348 0.1913 0.2473 -0.17600
2007 9 6 54349 0.1895 0.2451 -0.17624
2007 9 7 54350 0.1876 0.2430 -0.17658
2007 9 8 54351 0.1856 0.2409 -0.17713
2007 9 9 54352 0.1837 0.2388 -0.17789
2007 9 10 54353 0.1817 0.2368 -0.17887
2007 9 11 54354 0.1796 0.2348 -0.17999
2007 9 12 54355 0.1776 0.2328 -0.18120
2007 9 13 54356 0.1755 0.2308 -0.18240
2007 9 14 54357 0.1733 0.2289 -0.18353
2007 9 15 54358 0.1712 0.2270 -0.18453
2007 9 16 54359 0.1689 0.2252 -0.18536
2007 9 17 54360 0.1667 0.2234 -0.18601
2007 9 18 54361 0.1644 0.2216 -0.18653
2007 9 19 54362 0.1621 0.2198 -0.18694
2007 9 20 54363 0.1598 0.2181 -0.18732
2007 9 21 54364 0.1574 0.2164 -0.18775
2007 9 22 54365 0.1550 0.2148 -0.18834
2007 9 23 54366 0.1526 0.2132 -0.18918
2007 9 24 54367 0.1502 0.2116 -0.19032
2007 9 25 54368 0.1477 0.2101 -0.19179
2007 9 26 54369 0.1452 0.2086 -0.19352
2007 9 27 54370 0.1426 0.2071 -0.19538
2007 9 28 54371 0.1401 0.2057 -0.19717
2007 9 29 54372 0.1375 0.2043 -0.19873
2007 9 30 54373 0.1349 0.2030 -0.19997
2007 10 1 54374 0.1322 0.2017 -0.20089
2007 10 2 54375 0.1296 0.2004 -0.20159
2007 10 3 54376 0.1269 0.1992 -0.20221
2007 10 4 54377 0.1242 0.1980 -0.20287
2007 10 5 54378 0.1215 0.1969 -0.20369
2007 10 6 54379 0.1187 0.1958 -0.20469
2007 10 7 54380 0.1160 0.1948 -0.20588
2007 10 8 54381 0.1132 0.1937 -0.20722
2007 10 9 54382 0.1104 0.1928 -0.20863
2007 10 10 54383 0.1075 0.1918 -0.21006
2007 10 11 54384 0.1047 0.1910 -0.21142
2007 10 12 54385 0.1018 0.1901 -0.21266
2007 10 13 54386 0.0990 0.1893 -0.21373
2007 10 14 54387 0.0961 0.1886 -0.21462
2007 10 15 54388 0.0932 0.1879 -0.21534
2007 10 16 54389 0.0903 0.1872 -0.21594
2007 10 17 54390 0.0873 0.1866 -0.21649
2007 10 18 54391 0.0844 0.1860 -0.21704
2007 10 19 54392 0.0815 0.1855 -0.21769
2007 10 20 54393 0.0785 0.1850 -0.21853
2007 10 21 54394 0.0755 0.1845 -0.21962
2007 10 22 54395 0.0725 0.1841 -0.22101
2007 10 23 54396 0.0695 0.1838 -0.22268
2007 10 24 54397 0.0666 0.1835 -0.22454
2007 10 25 54398 0.0635 0.1832 -0.22643
2007 10 26 54399 0.0605 0.1830 -0.22819
2007 10 27 54400 0.0575 0.1828 -0.22968
2007 10 28 54401 0.0545 0.1827 -0.23085
2007 10 29 54402 0.0515 0.1826 -0.23175
2007 10 30 54403 0.0485 0.1826 -0.23252
2007 10 31 54404 0.0454 0.1826 -0.23331
2007 11 1 54405 0.0424 0.1827 -0.23422
2007 11 2 54406 0.0394 0.1828 -0.23533
2007 11 3 54407 0.0363 0.1830 -0.23663
2007 11 4 54408 0.0333 0.1832 -0.23808
2007 11 5 54409 0.0303 0.1834 -0.23962
2007 11 6 54410 0.0273 0.1837 -0.24118
2007 11 7 54411 0.0242 0.1840 -0.24269
2007 11 8 54412 0.0212 0.1844 -0.24410
2007 11 9 54413 0.0182 0.1849 -0.24535
2007 11 10 54414 0.0152 0.1853 -0.24642
2007 11 11 54415 0.0122 0.1859 -0.24732
2007 11 12 54416 0.0092 0.1864 -0.24808
2007 11 13 54417 0.0062 0.1870 -0.24876
2007 11 14 54418 0.0032 0.1877 -0.24944
2007 11 15 54419 0.0003 0.1884 -0.25018
2007 11 16 54420 -0.0027 0.1892 -0.25107
2007 11 17 54421 -0.0056 0.1900 -0.25218
2007 11 18 54422 -0.0086 0.1908 -0.25354
2007 11 19 54423 -0.0115 0.1917 -0.25515
2007 11 20 54424 -0.0144 0.1926 -0.25697
2007 11 21 54425 -0.0173 0.1936 -0.25887
2007 11 22 54426 -0.0202 0.1946 -0.26070
2007 11 23 54427 -0.0230 0.1957 -0.26233
2007 11 24 54428 -0.0259 0.1968 -0.26365
2007 11 25 54429 -0.0287 0.1979 -0.26468
2007 11 26 54430 -0.0315 0.1991 -0.26550
2007 11 27 54431 -0.0343 0.2004 -0.26626
2007 11 28 54432 -0.0371 0.2017 -0.26709
2007 11 29 54433 -0.0398 0.2030 -0.26810
2007 11 30 54434 -0.0425 0.2044 -0.26929
2007 12 1 54435 -0.0453 0.2058 -0.27064
2007 12 2 54436 -0.0479 0.2072 -0.27208
2007 12 3 54437 -0.0506 0.2087 -0.27352
2007 12 4 54438 -0.0532 0.2102 -0.27491
2007 12 5 54439 -0.0559 0.2118 -0.27619
2007 12 6 54440 -0.0584 0.2134 -0.27730
2007 12 7 54441 -0.0610 0.2151 -0.27823
2007 12 8 54442 -0.0635 0.2167 -0.27897
2007 12 9 54443 -0.0661 0.2185 -0.27957
2007 12 10 54444 -0.0685 0.2202 -0.28006
2007 12 11 54445 -0.0710 0.2220 -0.28053
2007 12 12 54446 -0.0734 0.2239 -0.28104
2007 12 13 54447 -0.0758 0.2258 -0.28168
2007 12 14 54448 -0.0782 0.2277 -0.28251
2007 12 15 54449 -0.0805 0.2296 -0.28357
2007 12 16 54450 -0.0828 0.2316 -0.28486
2007 12 17 54451 -0.0851 0.2337 -0.28633
2007 12 18 54452 -0.0873 0.2357 -0.28790
2007 12 19 54453 -0.0895 0.2378 -0.28945
2007 12 20 54454 -0.0917 0.2399 -0.29085
2007 12 21 54455 -0.0938 0.2421 -0.29200
2007 12 22 54456 -0.0959 0.2443 -0.29287
2007 12 23 54457 -0.0980 0.2465 -0.29351
2007 12 24 54458 -0.1000 0.2488 -0.29405
2007 12 25 54459 -0.1020 0.2510 -0.29462
2007 12 26 54460 -0.1039 0.2534 -0.29535
2007 12 27 54461 -0.1058 0.2557 -0.29628
2007 12 28 54462 -0.1077 0.2581 -0.29740
2007 12 29 54463 -0.1095 0.2605 -0.29865
2007 12 30 54464 -0.1113 0.2629 -0.29994
2007 12 31 54465 -0.1131 0.2654 -0.30118
2008 1 1 54466 -0.1148 0.2679 -0.30231
2008 1 2 54467 -0.1165 0.2704 -0.30328
2008 1 3 54468 -0.1181 0.2729 -0.30407
2008 1 4 54469 -0.1197 0.2755 -0.30468
2008 1 5 54470 -0.1212 0.2781 -0.30513
2008 1 6 54471 -0.1227 0.2807 -0.30546
2008 1 7 54472 -0.1242 0.2833 -0.30576
2008 1 8 54473 -0.1256 0.2860 -0.30608
2008 1 9 54474 -0.1270 0.2887 -0.30653
2008 1 10 54475 -0.1283 0.2914 -0.30716
2008 1 11 54476 -0.1296 0.2941 -0.30803
2008 1 12 54477 -0.1308 0.2969 -0.30913
2008 1 13 54478 -0.1320 0.2996 -0.31043
2008 1 14 54479 -0.1332 0.3024 -0.31182
2008 1 15 54480 -0.1343 0.3052 -0.31320
2008 1 16 54481 -0.1353 0.3080 -0.31445
2008 1 17 54482 -0.1363 0.3108 -0.31547
2008 1 18 54483 -0.1373 0.3137 -0.31623
2008 1 19 54484 -0.1382 0.3165 -0.31675
2008 1 20 54485 -0.1391 0.3194 -0.31713
2008 1 21 54486 -0.1399 0.3223 -0.31749
2008 1 22 54487 -0.1406 0.3252 -0.31797
2008 1 23 54488 -0.1414 0.3281 -0.31863
2008 1 24 54489 -0.1420 0.3310 -0.31949
2008 1 25 54490 -0.1426 0.3340 -0.32050
2008 1 26 54491 -0.1432 0.3369 -0.32157
2008 1 27 54492 -0.1437 0.3399 -0.32261
2008 1 28 54493 -0.1442 0.3428 -0.32353
2008 1 29 54494 -0.1446 0.3458 -0.32428
2008 1 30 54495 -0.1450 0.3488 -0.32486
2008 1 31 54496 -0.1453 0.3518 -0.32528
2008 2 1 54497 -0.1456 0.3548 -0.32558
2008 2 2 54498 -0.1458 0.3577 -0.32582
2008 2 3 54499 -0.1460 0.3607 -0.32610
2008 2 4 54500 -0.1461 0.3637 -0.32651
2008 2 5 54501 -0.1462 0.3667 -0.32713
2008 2 6 54502 -0.1462 0.3697 -0.32805
2008 2 7 54503 -0.1462 0.3727 -0.32930
2008 2 8 54504 -0.1461 0.3757 -0.33089
2008 2 9 54505 -0.1460 0.3787 -0.33276
2008 2 10 54506 -0.1458 0.3817 -0.33478
2008 2 11 54507 -0.1456 0.3847 -0.33681
2008 2 12 54508 -0.1453 0.3877 -0.33872
2008 2 13 54509 -0.1450 0.3907 -0.34038
2008 2 14 54510 -0.1446 0.3937 -0.34175
2008 2 15 54511 -0.1442 0.3967 -0.34286
2008 2 16 54512 -0.1437 0.3996 -0.34378
2008 2 17 54513 -0.1432 0.4026 -0.34464
2008 2 18 54514 -0.1426 0.4056 -0.34555
2008 2 19 54515 -0.1420 0.4085 -0.34662
2008 2 20 54516 -0.1413 0.4115 -0.34787
2008 2 21 54517 -0.1405 0.4144 -0.34929
2008 2 22 54518 -0.1398 0.4173 -0.35082
2008 2 23 54519 -0.1389 0.4202 -0.35238
2008 2 24 54520 -0.1381 0.4231 -0.35389
2008 2 25 54521 -0.1371 0.4260 -0.35531
2008 2 26 54522 -0.1362 0.4288 -0.35659
2008 2 27 54523 -0.1352 0.4317 -0.35773
2008 2 28 54524 -0.1341 0.4345 -0.35872
2008 2 29 54525 -0.1330 0.4374 -0.35958
2008 3 1 54526 -0.1318 0.4402 -0.36035
2008 3 2 54527 -0.1306 0.4429 -0.36103
2008 3 3 54528 -0.1293 0.4457 -0.36174
2008 3 4 54529 -0.1280 0.4485 -0.36261
2008 3 5 54530 -0.1267 0.4512 -0.36369
2008 3 6 54531 -0.1253 0.4539 -0.36505
2008 3 7 54532 -0.1238 0.4566 -0.36669
2008 3 8 54533 -0.1223 0.4592 -0.36855
2008 3 9 54534 -0.1208 0.4619 -0.37047
2008 3 10 54535 -0.1192 0.4645 -0.37236
2008 3 11 54536 -0.1176 0.4671 -0.37410
2008 3 12 54537 -0.1159 0.4697 -0.37551
2008 3 13 54538 -0.1142 0.4722 -0.37661
2008 3 14 54539 -0.1125 0.4747 -0.37755
2008 3 15 54540 -0.1107 0.4772 -0.37845
2008 3 16 54541 -0.1089 0.4797 -0.37932
2008 3 17 54542 -0.1070 0.4821 -0.38044
2008 3 18 54543 -0.1051 0.4845 -0.38182
2008 3 19 54544 -0.1031 0.4869 -0.38342
2008 3 20 54545 -0.1011 0.4893 -0.38520
2008 3 21 54546 -0.0991 0.4916 -0.38706
2008 3 22 54547 -0.0970 0.4939 -0.38889
2008 3 23 54548 -0.0949 0.4961 -0.39062
2008 3 24 54549 -0.0927 0.4983 -0.39215
2008 3 25 54550 -0.0905 0.5005 -0.39350
2008 3 26 54551 -0.0883 0.5027 -0.39462
2008 3 27 54552 -0.0860 0.5048 -0.39553
2008 3 28 54553 -0.0837 0.5069 -0.39629
2008 3 29 54554 -0.0814 0.5090 -0.39703
2008 3 30 54555 -0.0790 0.5110 -0.39778
2008 3 31 54556 -0.0766 0.5130 -0.39863
2008 4 1 54557 -0.0742 0.5149 -0.39966
2008 4 2 54558 -0.0717 0.5168 -0.40093
2008 4 3 54559 -0.0692 0.5187 -0.40246
2008 4 4 54560 -0.0666 0.5205 -0.40420
2008 4 5 54561 -0.0641 0.5223 -0.40606
2008 4 6 54562 -0.0615 0.5241 -0.40792
2008 4 7 54563 -0.0589 0.5258 -0.40968
2008 4 8 54564 -0.0562 0.5274 -0.41115
2008 4 9 54565 -0.0535 0.5291 -0.41228
2008 4 10 54566 -0.0508 0.5307 -0.41311
2008 4 11 54567 -0.0481 0.5322 -0.41375
2008 4 12 54568 -0.0453 0.5337 -0.41439
2008 4 13 54569 -0.0425 0.5352 -0.41513
2008 4 14 54570 -0.0397 0.5366 -0.41603
2008 4 15 54571 -0.0368 0.5380 -0.41720
2008 4 16 54572 -0.0340 0.5393 -0.41856
2008 4 17 54573 -0.0311 0.5406 -0.42003
2008 4 18 54574 -0.0282 0.5419 -0.42155
2008 4 19 54575 -0.0253 0.5431 -0.42291
2008 4 20 54576 -0.0223 0.5443 -0.42418
2008 4 21 54577 -0.0193 0.5454 -0.42527
2008 4 22 54578 -0.0164 0.5464 -0.42615
2008 4 23 54579 -0.0134 0.5475 -0.42687
2008 4 24 54580 -0.0103 0.5484 -0.42745
2008 4 25 54581 -0.0073 0.5494 -0.42801
2008 4 26 54582 -0.0042 0.5503 -0.42855
2008 4 27 54583 -0.0012 0.5511 -0.42913
2008 4 28 54584 0.0019 0.5519 -0.42982
2008 4 29 54585 0.0050 0.5526 -0.43067
2008 4 30 54586 0.0081 0.5533 -0.43178
2008 5 1 54587 0.0113 0.5540 -0.43315
2008 5 2 54588 0.0144 0.5546 -0.43474
2008 5 3 54589 0.0175 0.5551 -0.43644
2008 5 4 54590 0.0207 0.5557 -0.43813
2008 5 5 54591 0.0238 0.5561 -0.43960
2008 5 6 54592 0.0270 0.5565 -0.44079
2008 5 7 54593 0.0302 0.5569 -0.44169
2008 5 8 54594 0.0334 0.5572 -0.44236
2008 5 9 54595 0.0366 0.5575 -0.44294
2008 5 10 54596 0.0397 0.5577 -0.44356
2008 5 11 54597 0.0429 0.5579 -0.44434
2008 5 12 54598 0.0461 0.5580 -0.44529
2008 5 13 54599 0.0493 0.5580 -0.44639
2008 5 14 54600 0.0525 0.5581 -0.44758
2008 5 15 54601 0.0557 0.5580 -0.44878
2008 5 16 54602 0.0589 0.5580 -0.44994
2008 5 17 54603 0.0621 0.5578 -0.45102
2008 5 18 54604 0.0653 0.5577 -0.45207
2008 5 19 54605 0.0685 0.5574 -0.45296
2008 5 20 54606 0.0717 0.5572 -0.45366
2008 5 21 54607 0.0749 0.5568 -0.45420
2008 5 22 54608 0.0781 0.5565 -0.45465
2008 5 23 54609 0.0812 0.5560 -0.45508
2008 5 24 54610 0.0844 0.5556 -0.45550
2008 5 25 54611 0.0876 0.5551 -0.45597
2008 5 26 54612 0.0907 0.5545 -0.45653
2008 5 27 54613 0.0939 0.5539 -0.45728
2008 5 28 54614 0.0970 0.5532 -0.45824
2008 5 29 54615 0.1001 0.5525 -0.45938
2008 5 30 54616 0.1032 0.5518 -0.46067
2008 5 31 54617 0.1063 0.5510 -0.46189
2008 6 1 54618 0.1094 0.5501 -0.46287
2008 6 2 54619 0.1124 0.5492 -0.46360
2008 6 3 54620 0.1155 0.5483 -0.46401
2008 6 4 54621 0.1185 0.5473 -0.46415
2008 6 5 54622 0.1215 0.5462 -0.46416
2008 6 6 54623 0.1245 0.5452 -0.46420
2008 6 7 54624 0.1275 0.5440 -0.46442
2008 6 8 54625 0.1305 0.5428 -0.46483
2008 6 9 54626 0.1334 0.5416 -0.46539
2008 6 10 54627 0.1363 0.5404 -0.46607
2008 6 11 54628 0.1392 0.5390 -0.46674
2008 6 12 54629 0.1421 0.5377 -0.46732
2008 6 13 54630 0.1449 0.5363 -0.46778
2008 6 14 54631 0.1478 0.5349 -0.46810
2008 6 15 54632 0.1506 0.5334 -0.46826
2008 6 16 54633 0.1533 0.5318 -0.46830
2008 6 17 54634 0.1561 0.5303 -0.46808
2008 6 18 54635 0.1588 0.5287 -0.46772
2008 6 19 54636 0.1615 0.5270 -0.46733
2008 6 20 54637 0.1642 0.5253 -0.46697
2008 6 21 54638 0.1668 0.5236 -0.46670
2008 6 22 54639 0.1694 0.5218 -0.46658
2008 6 23 54640 0.1720 0.5200 -0.46663
2008 6 24 54641 0.1746 0.5181 -0.46689
2008 6 25 54642 0.1771 0.5162 -0.46732
2008 6 26 54643 0.1796 0.5143 -0.46780
2008 6 27 54644 0.1820 0.5123 -0.46829
2008 6 28 54645 0.1844 0.5103 -0.46870
2008 6 29 54646 0.1868 0.5083 -0.46889
2008 6 30 54647 0.1892 0.5062 -0.46887
2008 7 1 54648 0.1915 0.5040 -0.46866
2008 7 2 54649 0.1937 0.5019 -0.46829
2008 7 3 54650 0.1960 0.4997 -0.46792
2008 7 4 54651 0.1982 0.4975 -0.46767
2008 7 5 54652 0.2003 0.4952 -0.46766
2008 7 6 54653 0.2025 0.4929 -0.46791
2008 7 7 54654 0.2046 0.4906 -0.46832
2008 7 8 54655 0.2066 0.4882 -0.46877
2008 7 9 54656 0.2086 0.4859 -0.46919
2008 7 10 54657 0.2106 0.4834 -0.46944
2008 7 11 54658 0.2125 0.4810 -0.46949
2008 7 12 54659 0.2144 0.4785 -0.46937
2008 7 13 54660 0.2162 0.4760 -0.46909
2008 7 14 54661 0.2180 0.4735 -0.46867
2008 7 15 54662 0.2198 0.4709 -0.46811
2008 7 16 54663 0.2215 0.4683 -0.46748
2008 7 17 54664 0.2232 0.4657 -0.46687
2008 7 18 54665 0.2248 0.4631 -0.46639
2008 7 19 54666 0.2264 0.4604 -0.46606
2008 7 20 54667 0.2279 0.4577 -0.46593
2008 7 21 54668 0.2294 0.4550 -0.46601
2008 7 22 54669 0.2308 0.4523 -0.46628
2008 7 23 54670 0.2322 0.4495 -0.46669
2008 7 24 54671 0.2336 0.4467 -0.46717
2008 7 25 54672 0.2349 0.4439 -0.46762
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)
54288 -61.94 .29 -6.75 .15
54289 -62.23 .22 -6.70 .12
54290 -62.52 .22 -6.68 .12
54291 -62.78 .74 -6.72 .34
54292 -62.94 .14 -6.84 .34
54293 -63.00 .14 -7.01 .34
54294 -62.98 .14 -7.16 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54288 -0.024 0.115 -0.408 0.150
54289 -0.038 0.088 -0.413 0.120
54290 -0.047 0.088 -0.428 0.120
54291 -0.061 0.294 -0.439 0.340
54292 -0.064 0.056 -0.453 0.340
54293 -0.050 0.056 -0.477 0.340
54294 -0.023 0.056 -0.511 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.