**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
12 June 2008 Vol. XXI 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
= -0.4 seconds beginning 13 March 2008 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* As of Bulletin A Vol. XXI, No. 024, on 12 June 2008, we have *
* incorporated the new GSFC VLBI solutions gsf2008a and gsfint23. *
* 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
8 6 6 54623 .13642 .00009 .53493 .00009 -.431429 .000020
8 6 7 54624 .13990 .00009 .53378 .00009 -.431902 .000021
8 6 8 54625 .14325 .00009 .53274 .00009 -.432535 .000019
8 6 9 54626 .14660 .00010 .53169 .00009 -.433324 .000018
8 6 10 54627 .15015 .00010 .53049 .00009 -.434281 .000018
8 6 11 54628 .15370 .00009 .52922 .00009 -.435299 .000048
8 6 12 54629 .15710 .00009 .52771 .00009 -.436186 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
8 4 4 54560 -.0561 .4954 -.36528
8 4 5 54561 -.0536 .4971 -.36712
8 4 6 54562 -.0509 .4988 -.36904
8 4 7 54563 -.0479 .5005 -.37082
8 4 8 54564 -.0451 .5025 -.37222
8 4 9 54565 -.0429 .5048 -.37328
8 4 10 54566 -.0411 .5069 -.37405
8 4 11 54567 -.0389 .5087 -.37463
8 4 12 54568 -.0366 .5104 -.37519
8 4 13 54569 -.0342 .5119 -.37577
8 4 14 54570 -.0316 .5130 -.37657
8 4 15 54571 -.0290 .5139 -.37765
8 4 16 54572 -.0265 .5146 -.37892
8 4 17 54573 -.0237 .5157 -.38025
8 4 18 54574 -.0204 .5174 -.38161
8 4 19 54575 -.0169 .5194 -.38294
8 4 20 54576 -.0137 .5216 -.38416
8 4 21 54577 -.0110 .5239 -.38525
8 4 22 54578 -.0083 .5258 -.38615
8 4 23 54579 -.0058 .5275 -.38693
8 4 24 54580 -.0031 .5285 -.38759
8 4 25 54581 -.0001 .5292 -.38819
8 4 26 54582 .0031 .5300 -.38879
8 4 27 54583 .0062 .5308 -.38938
8 4 28 54584 .0095 .5318 -.39020
8 4 29 54585 .0129 .5332 -.39122
8 4 30 54586 .0160 .5347 -.39251
8 5 1 54587 .0189 .5361 -.39410
8 5 2 54588 .0217 .5371 -.39578
8 5 3 54589 .0244 .5377 -.39762
_______________________________________________________________________
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 = .0582 + .0330 cos A + .1226 sin A + .0631 cos C + .0545 sin C
y = .3517 + .1150 cos A - .0228 sin A + .0545 cos C - .0631 sin C
UT1-UTC = -.4129 - .00079 (MJD - 54637) - (UT2-UT1)
where A = 2*pi*(MJD-54629)/365.25 and C = 2*pi*(MJD-54629)/435.
TAI-UTC(MJD 54630) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54629)**0.80 S t = 0.00025 (MJD-54629)**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)
2008 6 13 54630 0.1604 0.5263 -0.43685
2008 6 14 54631 0.1636 0.5247 -0.43731
2008 6 15 54632 0.1668 0.5230 -0.43757
2008 6 16 54633 0.1698 0.5214 -0.43766
2008 6 17 54634 0.1728 0.5197 -0.43761
2008 6 18 54635 0.1757 0.5180 -0.43745
2008 6 19 54636 0.1786 0.5163 -0.43725
2008 6 20 54637 0.1815 0.5145 -0.43708
2008 6 21 54638 0.1843 0.5127 -0.43702
2008 6 22 54639 0.1871 0.5109 -0.43711
2008 6 23 54640 0.1898 0.5090 -0.43739
2008 6 24 54641 0.1925 0.5070 -0.43785
2008 6 25 54642 0.1952 0.5050 -0.43850
2008 6 26 54643 0.1978 0.5030 -0.43925
2008 6 27 54644 0.2004 0.5010 -0.44001
2008 6 28 54645 0.2030 0.4989 -0.44067
2008 6 29 54646 0.2055 0.4967 -0.44114
2008 6 30 54647 0.2080 0.4946 -0.44136
2008 7 1 54648 0.2105 0.4923 -0.44134
2008 7 2 54649 0.2129 0.4901 -0.44116
2008 7 3 54650 0.2153 0.4878 -0.44097
2008 7 4 54651 0.2176 0.4855 -0.44091
2008 7 5 54652 0.2199 0.4831 -0.44107
2008 7 6 54653 0.2222 0.4807 -0.44147
2008 7 7 54654 0.2244 0.4783 -0.44205
2008 7 8 54655 0.2266 0.4759 -0.44270
2008 7 9 54656 0.2287 0.4734 -0.44332
2008 7 10 54657 0.2308 0.4708 -0.44381
2008 7 11 54658 0.2329 0.4683 -0.44412
2008 7 12 54659 0.2349 0.4657 -0.44423
2008 7 13 54660 0.2369 0.4631 -0.44415
2008 7 14 54661 0.2388 0.4604 -0.44390
2008 7 15 54662 0.2407 0.4577 -0.44353
2008 7 16 54663 0.2425 0.4550 -0.44310
2008 7 17 54664 0.2443 0.4523 -0.44268
2008 7 18 54665 0.2461 0.4495 -0.44235
2008 7 19 54666 0.2478 0.4467 -0.44218
2008 7 20 54667 0.2494 0.4439 -0.44220
2008 7 21 54668 0.2510 0.4411 -0.44241
2008 7 22 54669 0.2526 0.4382 -0.44279
2008 7 23 54670 0.2541 0.4353 -0.44326
2008 7 24 54671 0.2556 0.4324 -0.44374
2008 7 25 54672 0.2570 0.4295 -0.44411
2008 7 26 54673 0.2584 0.4265 -0.44429
2008 7 27 54674 0.2597 0.4235 -0.44424
2008 7 28 54675 0.2610 0.4205 -0.44397
2008 7 29 54676 0.2622 0.4175 -0.44354
2008 7 30 54677 0.2633 0.4145 -0.44308
2008 7 31 54678 0.2645 0.4114 -0.44271
2008 8 1 54679 0.2655 0.4083 -0.44256
2008 8 2 54680 0.2665 0.4053 -0.44266
2008 8 3 54681 0.2675 0.4021 -0.44298
2008 8 4 54682 0.2684 0.3990 -0.44342
2008 8 5 54683 0.2693 0.3959 -0.44386
2008 8 6 54684 0.2701 0.3927 -0.44420
2008 8 7 54685 0.2708 0.3896 -0.44435
2008 8 8 54686 0.2715 0.3864 -0.44429
2008 8 9 54687 0.2722 0.3832 -0.44403
2008 8 10 54688 0.2728 0.3800 -0.44358
2008 8 11 54689 0.2733 0.3768 -0.44301
2008 8 12 54690 0.2738 0.3736 -0.44238
2008 8 13 54691 0.2742 0.3704 -0.44176
2008 8 14 54692 0.2746 0.3672 -0.44123
2008 8 15 54693 0.2749 0.3640 -0.44087
2008 8 16 54694 0.2752 0.3607 -0.44071
2008 8 17 54695 0.2754 0.3575 -0.44080
2008 8 18 54696 0.2756 0.3543 -0.44111
2008 8 19 54697 0.2757 0.3510 -0.44157
2008 8 20 54698 0.2757 0.3478 -0.44210
2008 8 21 54699 0.2757 0.3445 -0.44258
2008 8 22 54700 0.2757 0.3413 -0.44290
2008 8 23 54701 0.2756 0.3380 -0.44303
2008 8 24 54702 0.2754 0.3348 -0.44294
2008 8 25 54703 0.2752 0.3315 -0.44271
2008 8 26 54704 0.2749 0.3283 -0.44243
2008 8 27 54705 0.2746 0.3251 -0.44224
2008 8 28 54706 0.2742 0.3218 -0.44224
2008 8 29 54707 0.2738 0.3186 -0.44251
2008 8 30 54708 0.2733 0.3154 -0.44304
2008 8 31 54709 0.2728 0.3122 -0.44376
2008 9 1 54710 0.2722 0.3090 -0.44457
2008 9 2 54711 0.2715 0.3058 -0.44535
2008 9 3 54712 0.2708 0.3026 -0.44600
2008 9 4 54713 0.2700 0.2994 -0.44647
2008 9 5 54714 0.2692 0.2963 -0.44674
2008 9 6 54715 0.2684 0.2931 -0.44684
2008 9 7 54716 0.2675 0.2900 -0.44681
2008 9 8 54717 0.2665 0.2868 -0.44670
2008 9 9 54718 0.2655 0.2837 -0.44661
2008 9 10 54719 0.2644 0.2806 -0.44659
2008 9 11 54720 0.2633 0.2776 -0.44673
2008 9 12 54721 0.2621 0.2745 -0.44709
2008 9 13 54722 0.2609 0.2715 -0.44770
2008 9 14 54723 0.2596 0.2684 -0.44856
2008 9 15 54724 0.2583 0.2654 -0.44962
2008 9 16 54725 0.2569 0.2624 -0.45079
2008 9 17 54726 0.2555 0.2595 -0.45196
2008 9 18 54727 0.2540 0.2565 -0.45300
2008 9 19 54728 0.2525 0.2536 -0.45383
2008 9 20 54729 0.2509 0.2507 -0.45441
2008 9 21 54730 0.2493 0.2479 -0.45481
2008 9 22 54731 0.2476 0.2450 -0.45511
2008 9 23 54732 0.2459 0.2422 -0.45545
2008 9 24 54733 0.2441 0.2394 -0.45594
2008 9 25 54734 0.2423 0.2366 -0.45665
2008 9 26 54735 0.2404 0.2339 -0.45760
2008 9 27 54736 0.2385 0.2312 -0.45875
2008 9 28 54737 0.2366 0.2285 -0.46001
2008 9 29 54738 0.2346 0.2258 -0.46131
2008 9 30 54739 0.2325 0.2232 -0.46252
2008 10 1 54740 0.2305 0.2206 -0.46356
2008 10 2 54741 0.2283 0.2181 -0.46440
2008 10 3 54742 0.2262 0.2155 -0.46506
2008 10 4 54743 0.2240 0.2130 -0.46555
2008 10 5 54744 0.2217 0.2106 -0.46595
2008 10 6 54745 0.2194 0.2081 -0.46632
2008 10 7 54746 0.2171 0.2058 -0.46673
2008 10 8 54747 0.2147 0.2034 -0.46727
2008 10 9 54748 0.2123 0.2011 -0.46797
2008 10 10 54749 0.2098 0.1988 -0.46890
2008 10 11 54750 0.2074 0.1965 -0.47007
2008 10 12 54751 0.2048 0.1943 -0.47146
2008 10 13 54752 0.2023 0.1922 -0.47300
2008 10 14 54753 0.1997 0.1900 -0.47459
2008 10 15 54754 0.1970 0.1879 -0.47610
2008 10 16 54755 0.1944 0.1859 -0.47741
2008 10 17 54756 0.1917 0.1839 -0.47847
2008 10 18 54757 0.1889 0.1819 -0.47929
2008 10 19 54758 0.1862 0.1800 -0.47997
2008 10 20 54759 0.1834 0.1781 -0.48063
2008 10 21 54760 0.1805 0.1762 -0.48141
2008 10 22 54761 0.1777 0.1744 -0.48238
2008 10 23 54762 0.1748 0.1727 -0.48357
2008 10 24 54763 0.1719 0.1710 -0.48493
2008 10 25 54764 0.1689 0.1693 -0.48641
2008 10 26 54765 0.1659 0.1677 -0.48790
2008 10 27 54766 0.1629 0.1661 -0.48931
2008 10 28 54767 0.1599 0.1645 -0.49056
2008 10 29 54768 0.1568 0.1631 -0.49163
2008 10 30 54769 0.1538 0.1616 -0.49249
2008 10 31 54770 0.1507 0.1602 -0.49317
2008 11 1 54771 0.1475 0.1589 -0.49372
2008 11 2 54772 0.1444 0.1576 -0.49420
2008 11 3 54773 0.1412 0.1563 -0.49469
2008 11 4 54774 0.1380 0.1551 -0.49525
2008 11 5 54775 0.1348 0.1540 -0.49595
2008 11 6 54776 0.1316 0.1529 -0.49682
2008 11 7 54777 0.1284 0.1518 -0.49790
2008 11 8 54778 0.1251 0.1508 -0.49919
2008 11 9 54779 0.1218 0.1498 -0.50063
2008 11 10 54780 0.1185 0.1489 -0.50217
2008 11 11 54781 0.1152 0.1481 -0.50368
2008 11 12 54782 0.1119 0.1473 -0.50504
2008 11 13 54783 0.1086 0.1465 -0.50618
2008 11 14 54784 0.1052 0.1458 -0.50706
2008 11 15 54785 0.1019 0.1451 -0.50774
2008 11 16 54786 0.0985 0.1445 -0.50835
2008 11 17 54787 0.0951 0.1440 -0.50903
2008 11 18 54788 0.0918 0.1435 -0.50988
2008 11 19 54789 0.0884 0.1430 -0.51094
2008 11 20 54790 0.0850 0.1426 -0.51218
2008 11 21 54791 0.0816 0.1423 -0.51352
2008 11 22 54792 0.0781 0.1420 -0.51487
2008 11 23 54793 0.0747 0.1417 -0.51613
2008 11 24 54794 0.0713 0.1415 -0.51725
2008 11 25 54795 0.0679 0.1414 -0.51817
2008 11 26 54796 0.0645 0.1413 -0.51889
2008 11 27 54797 0.0611 0.1413 -0.51942
2008 11 28 54798 0.0576 0.1413 -0.51981
2008 11 29 54799 0.0542 0.1414 -0.52011
2008 11 30 54800 0.0508 0.1415 -0.52039
2008 12 1 54801 0.0474 0.1416 -0.52073
2008 12 2 54802 0.0440 0.1419 -0.52118
2008 12 3 54803 0.0406 0.1421 -0.52180
2008 12 4 54804 0.0372 0.1425 -0.52260
2008 12 5 54805 0.0338 0.1429 -0.52358
2008 12 6 54806 0.0304 0.1433 -0.52473
2008 12 7 54807 0.0270 0.1438 -0.52598
2008 12 8 54808 0.0236 0.1443 -0.52725
2008 12 9 54809 0.0203 0.1449 -0.52844
2008 12 10 54810 0.0169 0.1455 -0.52946
2008 12 11 54811 0.0136 0.1462 -0.53025
2008 12 12 54812 0.0102 0.1470 -0.53084
2008 12 13 54813 0.0069 0.1477 -0.53133
2008 12 14 54814 0.0036 0.1486 -0.53185
2008 12 15 54815 0.0003 0.1495 -0.53255
2008 12 16 54816 -0.0029 0.1504 -0.53351
2008 12 17 54817 -0.0062 0.1514 -0.53470
2008 12 18 54818 -0.0094 0.1524 -0.53607
2008 12 19 54819 -0.0126 0.1535 -0.53751
2008 12 20 54820 -0.0158 0.1547 -0.53888
2008 12 21 54821 -0.0190 0.1558 -0.54012
2008 12 22 54822 -0.0222 0.1571 -0.54115
2008 12 23 54823 -0.0253 0.1584 -0.54196
2008 12 24 54824 -0.0284 0.1597 -0.54253
2008 12 25 54825 -0.0315 0.1611 -0.54291
2008 12 26 54826 -0.0346 0.1625 -0.54315
2008 12 27 54827 -0.0376 0.1640 -0.54332
2008 12 28 54828 -0.0406 0.1655 -0.54348
2008 12 29 54829 -0.0436 0.1670 -0.54372
2008 12 30 54830 -0.0466 0.1687 -0.54408
2008 12 31 54831 -0.0495 0.1703 -0.54461
2009 1 1 54832 -0.0524 0.1720 -0.54530
2009 1 2 54833 -0.0553 0.1737 -0.54614
2009 1 3 54834 -0.0581 0.1755 -0.54711
2009 1 4 54835 -0.0609 0.1774 -0.54814
2009 1 5 54836 -0.0637 0.1792 -0.54917
2009 1 6 54837 -0.0665 0.1811 -0.55013
2009 1 7 54838 -0.0692 0.1831 -0.55095
2009 1 8 54839 -0.0719 0.1851 -0.55164
2009 1 9 54840 -0.0745 0.1871 -0.55223
2009 1 10 54841 -0.0771 0.1892 -0.55284
2009 1 11 54842 -0.0797 0.1913 -0.55357
2009 1 12 54843 -0.0823 0.1935 -0.55455
2009 1 13 54844 -0.0848 0.1957 -0.55579
2009 1 14 54845 -0.0872 0.1979 -0.55728
2009 1 15 54846 -0.0897 0.2002 -0.55888
2009 1 16 54847 -0.0920 0.2025 -0.56046
2009 1 17 54848 -0.0944 0.2048 -0.56189
2009 1 18 54849 -0.0967 0.2072 -0.56307
2009 1 19 54850 -0.0990 0.2096 -0.56396
2009 1 20 54851 -0.1012 0.2121 -0.56457
2009 1 21 54852 -0.1034 0.2146 -0.56497
2009 1 22 54853 -0.1056 0.2171 -0.56520
2009 1 23 54854 -0.1077 0.2196 -0.56536
2009 1 24 54855 -0.1097 0.2222 -0.56549
2009 1 25 54856 -0.1117 0.2248 -0.56562
2009 1 26 54857 -0.1137 0.2275 -0.56586
2009 1 27 54858 -0.1156 0.2302 -0.56626
2009 1 28 54859 -0.1175 0.2329 -0.56686
2009 1 29 54860 -0.1193 0.2356 -0.56765
2009 1 30 54861 -0.1211 0.2383 -0.56857
2009 1 31 54862 -0.1229 0.2411 -0.56954
2009 2 1 54863 -0.1246 0.2439 -0.57042
2009 2 2 54864 -0.1262 0.2468 -0.57107
2009 2 3 54865 -0.1278 0.2496 -0.57149
2009 2 4 54866 -0.1294 0.2525 -0.57170
2009 2 5 54867 -0.1309 0.2554 -0.57182
2009 2 6 54868 -0.1323 0.2584 -0.57190
2009 2 7 54869 -0.1337 0.2613 -0.57208
2009 2 8 54870 -0.1351 0.2643 -0.57251
2009 2 9 54871 -0.1364 0.2673 -0.57327
2009 2 10 54872 -0.1376 0.2703 -0.57431
2009 2 11 54873 -0.1389 0.2734 -0.57546
2009 2 12 54874 -0.1400 0.2764 -0.57662
2009 2 13 54875 -0.1411 0.2795 -0.57773
2009 2 14 54876 -0.1422 0.2826 -0.57873
2009 2 15 54877 -0.1431 0.2857 -0.57951
2009 2 16 54878 -0.1441 0.2888 -0.58002
2009 2 17 54879 -0.1450 0.2919 -0.58030
2009 2 18 54880 -0.1458 0.2951 -0.58050
2009 2 19 54881 -0.1466 0.2982 -0.58071
2009 2 20 54882 -0.1473 0.3014 -0.58099
2009 2 21 54883 -0.1480 0.3046 -0.58138
2009 2 22 54884 -0.1486 0.3078 -0.58191
2009 2 23 54885 -0.1492 0.3110 -0.58259
2009 2 24 54886 -0.1497 0.3142 -0.58347
2009 2 25 54887 -0.1502 0.3174 -0.58452
2009 2 26 54888 -0.1506 0.3206 -0.58572
2009 2 27 54889 -0.1510 0.3239 -0.58700
2009 2 28 54890 -0.1513 0.3271 -0.58824
2009 3 1 54891 -0.1515 0.3303 -0.58936
2009 3 2 54892 -0.1517 0.3336 -0.59022
2009 3 3 54893 -0.1519 0.3368 -0.59087
2009 3 4 54894 -0.1520 0.3401 -0.59138
2009 3 5 54895 -0.1520 0.3433 -0.59184
2009 3 6 54896 -0.1520 0.3466 -0.59239
2009 3 7 54897 -0.1519 0.3498 -0.59320
2009 3 8 54898 -0.1518 0.3531 -0.59431
2009 3 9 54899 -0.1516 0.3563 -0.59573
2009 3 10 54900 -0.1513 0.3596 -0.59738
2009 3 11 54901 -0.1511 0.3628 -0.59917
2009 3 12 54902 -0.1507 0.3660 -0.60094
2009 3 13 54903 -0.1503 0.3693 -0.60255
2009 3 14 54904 -0.1499 0.3725 -0.60394
2009 3 15 54905 -0.1494 0.3757 -0.60513
2009 3 16 54906 -0.1488 0.3789 -0.60610
2009 3 17 54907 -0.1482 0.3821 -0.60681
2009 3 18 54908 -0.1475 0.3853 -0.60746
2009 3 19 54909 -0.1468 0.3885 -0.60811
2009 3 20 54910 -0.1460 0.3916 -0.60886
2009 3 21 54911 -0.1452 0.3948 -0.60972
2009 3 22 54912 -0.1443 0.3979 -0.61072
2009 3 23 54913 -0.1434 0.4011 -0.61193
2009 3 24 54914 -0.1424 0.4042 -0.61336
2009 3 25 54915 -0.1414 0.4073 -0.61494
2009 3 26 54916 -0.1403 0.4104 -0.61661
2009 3 27 54917 -0.1392 0.4134 -0.61828
2009 3 28 54918 -0.1380 0.4165 -0.61985
2009 3 29 54919 -0.1368 0.4195 -0.62124
2009 3 30 54920 -0.1355 0.4225 -0.62235
2009 3 31 54921 -0.1342 0.4255 -0.62328
2009 4 1 54922 -0.1328 0.4285 -0.62414
2009 4 2 54923 -0.1313 0.4315 -0.62497
2009 4 3 54924 -0.1299 0.4344 -0.62592
2009 4 4 54925 -0.1283 0.4373 -0.62707
2009 4 5 54926 -0.1268 0.4402 -0.62846
2009 4 6 54927 -0.1251 0.4430 -0.63007
2009 4 7 54928 -0.1235 0.4459 -0.63183
2009 4 8 54929 -0.1218 0.4487 -0.63362
2009 4 9 54930 -0.1200 0.4515 -0.63528
2009 4 10 54931 -0.1182 0.4542 -0.63670
2009 4 11 54932 -0.1164 0.4569 -0.63778
2009 4 12 54933 -0.1145 0.4596 -0.63854
2009 4 13 54934 -0.1125 0.4623 -0.63907
2009 4 14 54935 -0.1106 0.4649 -0.63943
2009 4 15 54936 -0.1085 0.4676 -0.63974
2009 4 16 54937 -0.1065 0.4701 -0.64009
2009 4 17 54938 -0.1044 0.4727 -0.64055
2009 4 18 54939 -0.1022 0.4752 -0.64117
2009 4 19 54940 -0.1000 0.4777 -0.64204
2009 4 20 54941 -0.0978 0.4801 -0.64313
2009 4 21 54942 -0.0955 0.4825 -0.64442
2009 4 22 54943 -0.0932 0.4849 -0.64583
2009 4 23 54944 -0.0909 0.4873 -0.64725
2009 4 24 54945 -0.0885 0.4896 -0.64855
2009 4 25 54946 -0.0861 0.4918 -0.64963
2009 4 26 54947 -0.0836 0.4941 -0.65050
2009 4 27 54948 -0.0811 0.4963 -0.65116
2009 4 28 54949 -0.0786 0.4984 -0.65169
2009 4 29 54950 -0.0761 0.5005 -0.65223
2009 4 30 54951 -0.0735 0.5026 -0.65284
2009 5 1 54952 -0.0708 0.5047 -0.65360
2009 5 2 54953 -0.0682 0.5067 -0.65461
2009 5 3 54954 -0.0655 0.5086 -0.65588
2009 5 4 54955 -0.0628 0.5105 -0.65733
2009 5 5 54956 -0.0600 0.5124 -0.65885
2009 5 6 54957 -0.0572 0.5143 -0.66030
2009 5 7 54958 -0.0544 0.5160 -0.66158
2009 5 8 54959 -0.0516 0.5178 -0.66263
2009 5 9 54960 -0.0487 0.5195 -0.66344
2009 5 10 54961 -0.0458 0.5212 -0.66398
2009 5 11 54962 -0.0429 0.5228 -0.66434
2009 5 12 54963 -0.0400 0.5244 -0.66461
2009 5 13 54964 -0.0370 0.5259 -0.66488
2009 5 14 54965 -0.0340 0.5274 -0.66518
2009 5 15 54966 -0.0310 0.5288 -0.66553
2009 5 16 54967 -0.0280 0.5302 -0.66603
2009 5 17 54968 -0.0249 0.5315 -0.66668
2009 5 18 54969 -0.0219 0.5328 -0.66753
2009 5 19 54970 -0.0188 0.5341 -0.66851
2009 5 20 54971 -0.0157 0.5353 -0.66958
2009 5 21 54972 -0.0125 0.5365 -0.67064
2009 5 22 54973 -0.0094 0.5376 -0.67161
2009 5 23 54974 -0.0062 0.5386 -0.67240
2009 5 24 54975 -0.0030 0.5396 -0.67300
2009 5 25 54976 0.0001 0.5406 -0.67340
2009 5 26 54977 0.0033 0.5415 -0.67369
2009 5 27 54978 0.0066 0.5424 -0.67403
2009 5 28 54979 0.0098 0.5432 -0.67453
2009 5 29 54980 0.0130 0.5440 -0.67525
2009 5 30 54981 0.0163 0.5447 -0.67624
2009 5 31 54982 0.0195 0.5453 -0.67735
2009 6 1 54983 0.0228 0.5460 -0.67848
2009 6 2 54984 0.0261 0.5465 -0.67950
2009 6 3 54985 0.0294 0.5471 -0.68039
2009 6 4 54986 0.0327 0.5475 -0.68111
2009 6 5 54987 0.0360 0.5479 -0.68162
2009 6 6 54988 0.0393 0.5483 -0.68193
2009 6 7 54989 0.0426 0.5486 -0.68210
2009 6 8 54990 0.0459 0.5489 -0.68222
2009 6 9 54991 0.0492 0.5491 -0.68230
2009 6 10 54992 0.0525 0.5493 -0.68241
2009 6 11 54993 0.0558 0.5494 -0.68261
2009 6 12 54994 0.0591 0.5495 -0.68298
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)
54610 -56.85 .45 -8.63 .23
54611 -56.84 .45 -8.59 .23
54612 -56.81 .42 -8.47 .17
54613 -56.75 .39 -8.28 .34
54614 -56.76 .77 -8.20 .35
54615 -56.93 .77 -8.29 .35
54616 -57.25 .77 -8.39 .35
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54560 -56.4 -7.3
54561 -56.3 -6.8
54562 -56.6 -6.2
54563 -57.4 -6.0
54564 -58.2 -6.4
54565 -58.4 -7.0
54566 -58.1 -7.6
54567 -57.5 -7.9
54568 -57.0 -8.1
54569 -56.8 -8.1
54570 -56.8 -7.9
54571 -56.7 -7.8
54572 -56.5 -7.7
54573 -56.2 -7.7
54574 -56.0 -7.6
54575 -56.0 -7.5
54576 -56.0 -7.6
54577 -56.0 -7.9
54578 -56.0 -8.1
54579 -56.0 -8.3
54580 -55.9 -8.3
54581 -55.8 -8.3
54582 -55.7 -8.5
54583 -55.5 -8.6
54584 -55.3 -8.5
54585 -55.1 -8.3
54586 -55.1 -8.3
54587 -55.3 -8.4
54588 -55.5 -8.4
54589 -55.6 -8.2
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54610 0.313 0.179 -0.204 0.230
54611 0.315 0.179 -0.203 0.230
54612 0.301 0.167 -0.190 0.170
54613 0.276 0.155 -0.190 0.340
54614 0.256 0.306 -0.226 0.350
54615 0.249 0.306 -0.246 0.350
54616 0.242 0.306 -0.231 0.350
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54560 0.31 -0.19
54561 0.29 -0.10
54562 0.23 0.02
54563 0.16 0.09
54564 0.13 0.01
54565 0.18 -0.03
54566 0.22 -0.16
54567 0.27 -0.16
54568 0.28 -0.22
54569 0.25 -0.20
54570 0.21 -0.07
54571 0.23 -0.06
54572 0.28 -0.06
54573 0.36 -0.18
54574 0.40 -0.23
54575 0.34 -0.24
54576 0.28 -0.28
54577 0.25 -0.35
54578 0.27 -0.28
54579 0.30 -0.32
54580 0.34 -0.26
54581 0.34 -0.17
54582 0.33 -0.20
54583 0.34 -0.17
54584 0.33 -0.15
54585 0.33 -0.16
54586 0.35 -0.27
54587 0.35 -0.29
54588 0.33 -0.26
54589 0.34 -0.34
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.