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* I E R S B U L L E T I N - A *
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* Rapid Service/Prediction of Earth Orientation *
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1 May 2008 Vol. XXI No. 018
______________________________________________________________________
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
________________________________________________________________________
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 4 25 54581 -.00008 .00009 .52916 .00009 -.388209 .000012
8 4 26 54582 .00304 .00009 .52991 .00009 -.388777 .000013
8 4 27 54583 .00619 .00009 .53073 .00009 -.389404 .000014
8 4 28 54584 .00954 .00009 .53178 .00009 -.390209 .000014
8 4 29 54585 .01288 .00009 .53318 .00009 -.391243 .000013
8 4 30 54586 .01597 .00009 .53466 .00009 -.392556 .000048
8 5 1 54587 .01899 .00009 .53608 .00009 -.394114 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
8 3 5 54530 -.1170 .4190 -.33298
8 3 6 54531 -.1157 .4218 -.33399
8 3 7 54532 -.1148 .4244 -.33526
8 3 8 54533 -.1134 .4267 -.33678
8 3 9 54534 -.1119 .4294 -.33833
8 3 10 54535 -.1107 .4318 -.33982
8 3 11 54536 -.1093 .4345 -.34105
8 3 12 54537 -.1080 .4376 -.34208
8 3 13 54538 -.1065 .4404 -.34283
8 3 14 54539 -.1049 .4433 -.34334
8 3 15 54540 -.1030 .4461 -.34376
8 3 16 54541 -.1009 .4490 -.34428
8 3 17 54542 -.0986 .4521 -.34492
8 3 18 54543 -.0963 .4551 -.34581
8 3 19 54544 -.0941 .4580 -.34698
8 3 20 54545 -.0915 .4609 -.34831
8 3 21 54546 -.0889 .4639 -.34970
8 3 22 54547 -.0862 .4670 -.35124
8 3 23 54548 -.0833 .4702 -.35266
8 3 24 54549 -.0807 .4731 -.35406
8 3 25 54550 -.0785 .4759 -.35530
8 3 26 54551 -.0762 .4784 -.35635
8 3 27 54552 -.0741 .4807 -.35723
8 3 28 54553 -.0722 .4829 -.35796
8 3 29 54554 -.0706 .4850 -.35860
8 3 30 54555 -.0687 .4867 -.35925
8 3 31 54556 -.0665 .4882 -.36004
8 4 1 54557 -.0645 .4899 -.36100
8 4 2 54558 -.0620 .4917 -.36217
8 4 3 54559 -.0590 .4936 -.36367
_______________________________________________________________________
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 = .0668 - .0486 cos A + .0990 sin A + .0075 cos C + .0894 sin C
y = .3527 + .0901 cos A + .0509 sin A + .0894 cos C - .0075 sin C
UT1-UTC = -.3611 - .00079 (MJD - 54595) - (UT2-UT1)
where A = 2*pi*(MJD-54587)/365.25 and C = 2*pi*(MJD-54587)/435.
TAI-UTC(MJD 54588) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54587)**0.80 S t = 0.00025 (MJD-54587)**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 5 2 54588 0.0219 0.5372 -0.39587
2008 5 3 54589 0.0250 0.5382 -0.39770
2008 5 4 54590 0.0280 0.5391 -0.39947
2008 5 5 54591 0.0312 0.5398 -0.40102
2008 5 6 54592 0.0343 0.5404 -0.40230
2008 5 7 54593 0.0376 0.5409 -0.40328
2008 5 8 54594 0.0408 0.5414 -0.40406
2008 5 9 54595 0.0440 0.5418 -0.40479
2008 5 10 54596 0.0473 0.5422 -0.40560
2008 5 11 54597 0.0506 0.5425 -0.40658
2008 5 12 54598 0.0539 0.5427 -0.40774
2008 5 13 54599 0.0571 0.5429 -0.40902
2008 5 14 54600 0.0604 0.5430 -0.41036
2008 5 15 54601 0.0637 0.5431 -0.41166
2008 5 16 54602 0.0670 0.5432 -0.41284
2008 5 17 54603 0.0703 0.5432 -0.41386
2008 5 18 54604 0.0736 0.5431 -0.41468
2008 5 19 54605 0.0769 0.5430 -0.41526
2008 5 20 54606 0.0802 0.5428 -0.41562
2008 5 21 54607 0.0835 0.5426 -0.41578
2008 5 22 54608 0.0867 0.5423 -0.41581
2008 5 23 54609 0.0900 0.5420 -0.41577
2008 5 24 54610 0.0933 0.5416 -0.41576
2008 5 25 54611 0.0966 0.5412 -0.41586
2008 5 26 54612 0.0998 0.5408 -0.41614
2008 5 27 54613 0.1031 0.5402 -0.41661
2008 5 28 54614 0.1063 0.5397 -0.41729
2008 5 29 54615 0.1096 0.5391 -0.41815
2008 5 30 54616 0.1128 0.5384 -0.41910
2008 5 31 54617 0.1160 0.5377 -0.42004
2008 6 1 54618 0.1192 0.5369 -0.42084
2008 6 2 54619 0.1224 0.5361 -0.42139
2008 6 3 54620 0.1256 0.5353 -0.42165
2008 6 4 54621 0.1288 0.5344 -0.42166
2008 6 5 54622 0.1319 0.5334 -0.42155
2008 6 6 54623 0.1351 0.5324 -0.42146
2008 6 7 54624 0.1382 0.5314 -0.42152
2008 6 8 54625 0.1413 0.5303 -0.42177
2008 6 9 54626 0.1444 0.5291 -0.42219
2008 6 10 54627 0.1474 0.5279 -0.42269
2008 6 11 54628 0.1505 0.5267 -0.42318
2008 6 12 54629 0.1535 0.5254 -0.42358
2008 6 13 54630 0.1565 0.5241 -0.42382
2008 6 14 54631 0.1595 0.5227 -0.42386
2008 6 15 54632 0.1624 0.5213 -0.42371
2008 6 16 54633 0.1654 0.5198 -0.42336
2008 6 17 54634 0.1683 0.5183 -0.42285
2008 6 18 54635 0.1712 0.5168 -0.42224
2008 6 19 54636 0.1740 0.5152 -0.42159
2008 6 20 54637 0.1769 0.5135 -0.42100
2008 6 21 54638 0.1797 0.5119 -0.42052
2008 6 22 54639 0.1824 0.5101 -0.42023
2008 6 23 54640 0.1852 0.5084 -0.42013
2008 6 24 54641 0.1879 0.5065 -0.42024
2008 6 25 54642 0.1906 0.5047 -0.42054
2008 6 26 54643 0.1932 0.5028 -0.42095
2008 6 27 54644 0.1959 0.5009 -0.42138
2008 6 28 54645 0.1985 0.4989 -0.42173
2008 6 29 54646 0.2010 0.4969 -0.42189
2008 6 30 54647 0.2035 0.4948 -0.42181
2008 7 1 54648 0.2060 0.4928 -0.42151
2008 7 2 54649 0.2085 0.4906 -0.42107
2008 7 3 54650 0.2109 0.4885 -0.42065
2008 7 4 54651 0.2133 0.4863 -0.42036
2008 7 5 54652 0.2156 0.4840 -0.42030
2008 7 6 54653 0.2179 0.4818 -0.42046
2008 7 7 54654 0.2202 0.4794 -0.42077
2008 7 8 54655 0.2224 0.4771 -0.42114
2008 7 9 54656 0.2246 0.4747 -0.42146
2008 7 10 54657 0.2268 0.4723 -0.42165
2008 7 11 54658 0.2289 0.4699 -0.42166
2008 7 12 54659 0.2310 0.4674 -0.42148
2008 7 13 54660 0.2330 0.4649 -0.42111
2008 7 14 54661 0.2350 0.4624 -0.42058
2008 7 15 54662 0.2369 0.4598 -0.41993
2008 7 16 54663 0.2388 0.4572 -0.41923
2008 7 17 54664 0.2407 0.4546 -0.41857
2008 7 18 54665 0.2425 0.4519 -0.41802
2008 7 19 54666 0.2442 0.4492 -0.41763
2008 7 20 54667 0.2460 0.4465 -0.41746
2008 7 21 54668 0.2476 0.4438 -0.41749
2008 7 22 54669 0.2493 0.4410 -0.41770
2008 7 23 54670 0.2508 0.4382 -0.41802
2008 7 24 54671 0.2524 0.4354 -0.41837
2008 7 25 54672 0.2539 0.4326 -0.41864
2008 7 26 54673 0.2553 0.4297 -0.41874
2008 7 27 54674 0.2567 0.4269 -0.41863
2008 7 28 54675 0.2580 0.4240 -0.41831
2008 7 29 54676 0.2593 0.4210 -0.41785
2008 7 30 54677 0.2606 0.4181 -0.41736
2008 7 31 54678 0.2618 0.4151 -0.41699
2008 8 1 54679 0.2629 0.4122 -0.41685
2008 8 2 54680 0.2640 0.4092 -0.41696
2008 8 3 54681 0.2651 0.4062 -0.41731
2008 8 4 54682 0.2661 0.4031 -0.41777
2008 8 5 54683 0.2670 0.4001 -0.41825
2008 8 6 54684 0.2679 0.3970 -0.41862
2008 8 7 54685 0.2687 0.3940 -0.41882
2008 8 8 54686 0.2695 0.3909 -0.41882
2008 8 9 54687 0.2703 0.3878 -0.41862
2008 8 10 54688 0.2710 0.3847 -0.41825
2008 8 11 54689 0.2716 0.3816 -0.41775
2008 8 12 54690 0.2722 0.3784 -0.41719
2008 8 13 54691 0.2727 0.3753 -0.41664
2008 8 14 54692 0.2732 0.3721 -0.41619
2008 8 15 54693 0.2736 0.3690 -0.41591
2008 8 16 54694 0.2740 0.3658 -0.41584
2008 8 17 54695 0.2743 0.3627 -0.41601
2008 8 18 54696 0.2745 0.3595 -0.41638
2008 8 19 54697 0.2747 0.3563 -0.41691
2008 8 20 54698 0.2749 0.3531 -0.41750
2008 8 21 54699 0.2750 0.3500 -0.41804
2008 8 22 54700 0.2750 0.3468 -0.41842
2008 8 23 54701 0.2750 0.3436 -0.41859
2008 8 24 54702 0.2750 0.3404 -0.41854
2008 8 25 54703 0.2749 0.3372 -0.41833
2008 8 26 54704 0.2747 0.3340 -0.41807
2008 8 27 54705 0.2745 0.3309 -0.41789
2008 8 28 54706 0.2742 0.3277 -0.41789
2008 8 29 54707 0.2739 0.3245 -0.41815
2008 8 30 54708 0.2735 0.3214 -0.41866
2008 8 31 54709 0.2730 0.3182 -0.41935
2008 9 1 54710 0.2726 0.3150 -0.42011
2008 9 2 54711 0.2720 0.3119 -0.42084
2008 9 3 54712 0.2714 0.3088 -0.42144
2008 9 4 54713 0.2708 0.3056 -0.42185
2008 9 5 54714 0.2701 0.3025 -0.42206
2008 9 6 54715 0.2693 0.2994 -0.42210
2008 9 7 54716 0.2685 0.2963 -0.42200
2008 9 8 54717 0.2677 0.2932 -0.42184
2008 9 9 54718 0.2668 0.2901 -0.42168
2008 9 10 54719 0.2658 0.2871 -0.42160
2008 9 11 54720 0.2648 0.2840 -0.42167
2008 9 12 54721 0.2637 0.2810 -0.42195
2008 9 13 54722 0.2626 0.2780 -0.42248
2008 9 14 54723 0.2614 0.2750 -0.42326
2008 9 15 54724 0.2602 0.2720 -0.42425
2008 9 16 54725 0.2590 0.2690 -0.42534
2008 9 17 54726 0.2577 0.2661 -0.42644
2008 9 18 54727 0.2563 0.2632 -0.42740
2008 9 19 54728 0.2549 0.2603 -0.42815
2008 9 20 54729 0.2534 0.2574 -0.42867
2008 9 21 54730 0.2519 0.2545 -0.42899
2008 9 22 54731 0.2504 0.2517 -0.42923
2008 9 23 54732 0.2488 0.2489 -0.42951
2008 9 24 54733 0.2471 0.2461 -0.42995
2008 9 25 54734 0.2454 0.2433 -0.43061
2008 9 26 54735 0.2437 0.2406 -0.43151
2008 9 27 54736 0.2419 0.2379 -0.43262
2008 9 28 54737 0.2400 0.2352 -0.43383
2008 9 29 54738 0.2382 0.2325 -0.43505
2008 9 30 54739 0.2362 0.2299 -0.43618
2008 10 1 54740 0.2343 0.2273 -0.43715
2008 10 2 54741 0.2322 0.2247 -0.43792
2008 10 3 54742 0.2302 0.2222 -0.43850
2008 10 4 54743 0.2281 0.2197 -0.43893
2008 10 5 54744 0.2260 0.2172 -0.43925
2008 10 6 54745 0.2238 0.2147 -0.43955
2008 10 7 54746 0.2216 0.2123 -0.43989
2008 10 8 54747 0.2193 0.2099 -0.44035
2008 10 9 54748 0.2170 0.2076 -0.44099
2008 10 10 54749 0.2147 0.2053 -0.44185
2008 10 11 54750 0.2123 0.2030 -0.44295
2008 10 12 54751 0.2099 0.2008 -0.44427
2008 10 13 54752 0.2074 0.1986 -0.44574
2008 10 14 54753 0.2049 0.1964 -0.44727
2008 10 15 54754 0.2024 0.1943 -0.44872
2008 10 16 54755 0.1998 0.1922 -0.44997
2008 10 17 54756 0.1972 0.1902 -0.45098
2008 10 18 54757 0.1946 0.1881 -0.45175
2008 10 19 54758 0.1919 0.1862 -0.45239
2008 10 20 54759 0.1893 0.1842 -0.45301
2008 10 21 54760 0.1865 0.1823 -0.45376
2008 10 22 54761 0.1838 0.1805 -0.45470
2008 10 23 54762 0.1810 0.1787 -0.45586
2008 10 24 54763 0.1782 0.1769 -0.45722
2008 10 25 54764 0.1753 0.1752 -0.45868
2008 10 26 54765 0.1724 0.1735 -0.46017
2008 10 27 54766 0.1695 0.1719 -0.46159
2008 10 28 54767 0.1666 0.1703 -0.46287
2008 10 29 54768 0.1637 0.1688 -0.46398
2008 10 30 54769 0.1607 0.1673 -0.46489
2008 10 31 54770 0.1577 0.1658 -0.46564
2008 11 1 54771 0.1546 0.1644 -0.46627
2008 11 2 54772 0.1516 0.1630 -0.46686
2008 11 3 54773 0.1485 0.1617 -0.46747
2008 11 4 54774 0.1454 0.1604 -0.46817
2008 11 5 54775 0.1423 0.1592 -0.46902
2008 11 6 54776 0.1392 0.1580 -0.47005
2008 11 7 54777 0.1360 0.1569 -0.47129
2008 11 8 54778 0.1328 0.1558 -0.47273
2008 11 9 54779 0.1297 0.1548 -0.47432
2008 11 10 54780 0.1265 0.1538 -0.47599
2008 11 11 54781 0.1232 0.1529 -0.47762
2008 11 12 54782 0.1200 0.1520 -0.47910
2008 11 13 54783 0.1167 0.1511 -0.48032
2008 11 14 54784 0.1135 0.1504 -0.48126
2008 11 15 54785 0.1102 0.1496 -0.48197
2008 11 16 54786 0.1069 0.1489 -0.48255
2008 11 17 54787 0.1036 0.1483 -0.48314
2008 11 18 54788 0.1003 0.1477 -0.48383
2008 11 19 54789 0.0970 0.1472 -0.48470
2008 11 20 54790 0.0937 0.1467 -0.48571
2008 11 21 54791 0.0903 0.1462 -0.48682
2008 11 22 54792 0.0870 0.1458 -0.48793
2008 11 23 54793 0.0837 0.1455 -0.48897
2008 11 24 54794 0.0803 0.1452 -0.48988
2008 11 25 54795 0.0770 0.1450 -0.49062
2008 11 26 54796 0.0736 0.1448 -0.49117
2008 11 27 54797 0.0702 0.1447 -0.49155
2008 11 28 54798 0.0669 0.1446 -0.49181
2008 11 29 54799 0.0635 0.1445 -0.49200
2008 11 30 54800 0.0602 0.1446 -0.49220
2008 12 1 54801 0.0568 0.1446 -0.49247
2008 12 2 54802 0.0535 0.1447 -0.49284
2008 12 3 54803 0.0501 0.1449 -0.49336
2008 12 4 54804 0.0468 0.1451 -0.49405
2008 12 5 54805 0.0434 0.1454 -0.49492
2008 12 6 54806 0.0401 0.1457 -0.49594
2008 12 7 54807 0.0368 0.1461 -0.49704
2008 12 8 54808 0.0334 0.1465 -0.49811
2008 12 9 54809 0.0301 0.1470 -0.49907
2008 12 10 54810 0.0268 0.1475 -0.49986
2008 12 11 54811 0.0235 0.1481 -0.50046
2008 12 12 54812 0.0202 0.1487 -0.50090
2008 12 13 54813 0.0170 0.1494 -0.50131
2008 12 14 54814 0.0137 0.1501 -0.50182
2008 12 15 54815 0.0105 0.1509 -0.50252
2008 12 16 54816 0.0072 0.1517 -0.50345
2008 12 17 54817 0.0040 0.1526 -0.50463
2008 12 18 54818 0.0008 0.1535 -0.50594
2008 12 19 54819 -0.0024 0.1545 -0.50726
2008 12 20 54820 -0.0055 0.1555 -0.50848
2008 12 21 54821 -0.0087 0.1566 -0.50958
2008 12 22 54822 -0.0118 0.1577 -0.51048
2008 12 23 54823 -0.0149 0.1589 -0.51106
2008 12 24 54824 -0.0180 0.1601 -0.51148
2008 12 25 54825 -0.0211 0.1613 -0.51178
2008 12 26 54826 -0.0241 0.1626 -0.51202
2008 12 27 54827 -0.0271 0.1640 -0.51223
2008 12 28 54828 -0.0301 0.1654 -0.51245
2008 12 29 54829 -0.0331 0.1668 -0.51279
2008 12 30 54830 -0.0361 0.1683 -0.51331
2008 12 31 54831 -0.0390 0.1698 -0.51400
2009 1 1 54832 -0.0419 0.1714 -0.51485
2009 1 2 54833 -0.0447 0.1730 -0.51584
2009 1 3 54834 -0.0476 0.1747 -0.51693
2009 1 4 54835 -0.0504 0.1764 -0.51805
2009 1 5 54836 -0.0532 0.1782 -0.51905
2009 1 6 54837 -0.0559 0.1800 -0.51994
2009 1 7 54838 -0.0586 0.1818 -0.52067
2009 1 8 54839 -0.0613 0.1837 -0.52119
2009 1 9 54840 -0.0640 0.1856 -0.52158
2009 1 10 54841 -0.0666 0.1875 -0.52197
2009 1 11 54842 -0.0692 0.1895 -0.52249
2009 1 12 54843 -0.0717 0.1916 -0.52324
2009 1 13 54844 -0.0742 0.1936 -0.52427
2009 1 14 54845 -0.0767 0.1957 -0.52551
2009 1 15 54846 -0.0792 0.1979 -0.52682
2009 1 16 54847 -0.0816 0.2001 -0.52802
2009 1 17 54848 -0.0839 0.2023 -0.52897
2009 1 18 54849 -0.0863 0.2046 -0.52962
2009 1 19 54850 -0.0885 0.2069 -0.53002
2009 1 20 54851 -0.0908 0.2092 -0.53017
2009 1 21 54852 -0.0930 0.2115 -0.53018
2009 1 22 54853 -0.0952 0.2139 -0.53009
2009 1 23 54854 -0.0973 0.2164 -0.53000
2009 1 24 54855 -0.0994 0.2188 -0.52996
2009 1 25 54856 -0.1014 0.2213 -0.53011
2009 1 26 54857 -0.1034 0.2239 -0.53046
2009 1 27 54858 -0.1054 0.2264 -0.53103
2009 1 28 54859 -0.1073 0.2290 -0.53180
2009 1 29 54860 -0.1092 0.2316 -0.53270
2009 1 30 54861 -0.1110 0.2343 -0.53366
2009 1 31 54862 -0.1128 0.2369 -0.53458
2009 2 1 54863 -0.1145 0.2396 -0.53548
2009 2 2 54864 -0.1162 0.2423 -0.53628
2009 2 3 54865 -0.1179 0.2451 -0.53693
2009 2 4 54866 -0.1195 0.2479 -0.53747
2009 2 5 54867 -0.1210 0.2507 -0.53787
2009 2 6 54868 -0.1225 0.2535 -0.53822
2009 2 7 54869 -0.1240 0.2563 -0.53868
2009 2 8 54870 -0.1254 0.2592 -0.53942
2009 2 9 54871 -0.1267 0.2621 -0.54050
2009 2 10 54872 -0.1280 0.2650 -0.54187
2009 2 11 54873 -0.1293 0.2679 -0.54344
2009 2 12 54874 -0.1305 0.2709 -0.54504
2009 2 13 54875 -0.1316 0.2738 -0.54655
2009 2 14 54876 -0.1327 0.2768 -0.54786
2009 2 15 54877 -0.1338 0.2798 -0.54889
2009 2 16 54878 -0.1348 0.2828 -0.54966
2009 2 17 54879 -0.1358 0.2859 -0.55026
2009 2 18 54880 -0.1367 0.2889 -0.55074
2009 2 19 54881 -0.1375 0.2920 -0.55114
2009 2 20 54882 -0.1383 0.2950 -0.55151
2009 2 21 54883 -0.1390 0.2981 -0.55195
2009 2 22 54884 -0.1397 0.3012 -0.55255
2009 2 23 54885 -0.1404 0.3043 -0.55338
2009 2 24 54886 -0.1410 0.3074 -0.55443
2009 2 25 54887 -0.1415 0.3106 -0.55569
2009 2 26 54888 -0.1420 0.3137 -0.55712
2009 2 27 54889 -0.1424 0.3168 -0.55862
2009 2 28 54890 -0.1428 0.3200 -0.56012
2009 3 1 54891 -0.1431 0.3231 -0.56153
2009 3 2 54892 -0.1434 0.3263 -0.56278
2009 3 3 54893 -0.1436 0.3294 -0.56382
2009 3 4 54894 -0.1438 0.3326 -0.56472
2009 3 5 54895 -0.1439 0.3358 -0.56555
2009 3 6 54896 -0.1440 0.3389 -0.56644
2009 3 7 54897 -0.1440 0.3421 -0.56755
2009 3 8 54898 -0.1439 0.3453 -0.56890
2009 3 9 54899 -0.1438 0.3484 -0.57051
2009 3 10 54900 -0.1437 0.3516 -0.57231
2009 3 11 54901 -0.1435 0.3548 -0.57426
2009 3 12 54902 -0.1432 0.3579 -0.57625
2009 3 13 54903 -0.1429 0.3611 -0.57811
2009 3 14 54904 -0.1425 0.3642 -0.57978
2009 3 15 54905 -0.1421 0.3674 -0.58124
2009 3 16 54906 -0.1416 0.3705 -0.58254
2009 3 17 54907 -0.1411 0.3737 -0.58369
2009 3 18 54908 -0.1406 0.3768 -0.58472
2009 3 19 54909 -0.1399 0.3799 -0.58574
2009 3 20 54910 -0.1393 0.3830 -0.58686
2009 3 21 54911 -0.1385 0.3861 -0.58806
2009 3 22 54912 -0.1377 0.3892 -0.58941
2009 3 23 54913 -0.1369 0.3923 -0.59091
2009 3 24 54914 -0.1360 0.3953 -0.59257
2009 3 25 54915 -0.1351 0.3984 -0.59436
2009 3 26 54916 -0.1341 0.4014 -0.59621
2009 3 27 54917 -0.1331 0.4044 -0.59807
2009 3 28 54918 -0.1320 0.4074 -0.59986
2009 3 29 54919 -0.1309 0.4104 -0.60146
2009 3 30 54920 -0.1297 0.4134 -0.60281
2009 3 31 54921 -0.1284 0.4163 -0.60393
2009 4 1 54922 -0.1272 0.4193 -0.60492
2009 4 2 54923 -0.1258 0.4222 -0.60586
2009 4 3 54924 -0.1245 0.4251 -0.60688
2009 4 4 54925 -0.1230 0.4279 -0.60811
2009 4 5 54926 -0.1216 0.4308 -0.60959
2009 4 6 54927 -0.1200 0.4336 -0.61131
2009 4 7 54928 -0.1185 0.4364 -0.61316
2009 4 8 54929 -0.1169 0.4392 -0.61500
2009 4 9 54930 -0.1152 0.4419 -0.61668
2009 4 10 54931 -0.1135 0.4447 -0.61817
2009 4 11 54932 -0.1118 0.4474 -0.61948
2009 4 12 54933 -0.1100 0.4500 -0.62061
2009 4 13 54934 -0.1081 0.4527 -0.62162
2009 4 14 54935 -0.1063 0.4553 -0.62248
2009 4 15 54936 -0.1043 0.4579 -0.62324
2009 4 16 54937 -0.1024 0.4605 -0.62404
2009 4 17 54938 -0.1004 0.4630 -0.62499
2009 4 18 54939 -0.0983 0.4655 -0.62615
2009 4 19 54940 -0.0963 0.4680 -0.62749
2009 4 20 54941 -0.0941 0.4704 -0.62898
2009 4 21 54942 -0.0920 0.4728 -0.63062
2009 4 22 54943 -0.0898 0.4752 -0.63237
2009 4 23 54944 -0.0875 0.4775 -0.63417
2009 4 24 54945 -0.0853 0.4798 -0.63592
2009 4 25 54946 -0.0829 0.4821 -0.63753
2009 4 26 54947 -0.0806 0.4844 -0.63884
2009 4 27 54948 -0.0782 0.4866 -0.63991
2009 4 28 54949 -0.0758 0.4887 -0.64092
2009 4 29 54950 -0.0733 0.4908 -0.64202
2009 4 30 54951 -0.0708 0.4929 -0.64322
2009 5 1 54952 -0.0683 0.4950 -0.64457
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)
54572 -56.40 .38 -7.73 .34
54573 -56.34 .38 -7.60 .34
54574 -56.26 .38 -7.44 .34
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54530 -58.2 -5.7
54531 -58.3 -5.6
54532 -58.2 -5.4
54533 -58.1 -5.1
54534 -58.2 -4.8
54535 -58.6 -4.7
54536 -59.0 -4.9
54537 -59.3 -5.3
54538 -59.3 -5.7
54539 -59.0 -6.0
54540 -58.6 -6.1
54541 -58.2 -6.2
54542 -57.8 -6.4
54543 -57.4 -6.5
54544 -57.1 -6.5
54545 -57.2 -6.5
54546 -57.4 -6.3
54547 -57.6 -6.2
54548 -57.6 -6.2
54549 -57.6 -6.3
54550 -57.4 -6.4
54551 -57.2 -6.4
54552 -57.0 -6.5
54553 -56.7 -6.8
54554 -56.5 -7.1
54555 -56.3 -7.4
54556 -56.1 -7.4
54557 -56.2 -7.3
54558 -56.4 -7.3
54559 -56.6 -7.4
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54572 0.323 0.151 -0.093 0.340
54573 0.308 0.151 -0.082 0.340
54574 0.295 0.151 -0.072 0.340
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54530 0.31 -0.14
54531 0.29 -0.08
54532 0.25 -0.05
54533 0.18 -0.06
54534 0.17 -0.06
54535 0.20 -0.02
54536 0.28 0.02
54537 0.31 0.00
54538 0.28 -0.03
54539 0.26 -0.07
54540 0.27 0.01
54541 0.29 0.05
54542 0.33 -0.01
54543 0.36 -0.04
54544 0.37 -0.08
54545 0.27 -0.25
54546 0.17 -0.24
54547 0.06 -0.22
54548 0.04 -0.12
54549 0.06 -0.01
54550 0.21 0.04
54551 0.34 0.07
54552 0.41 0.01
54553 0.45 -0.12
54554 0.41 -0.11
54555 0.37 -0.15
54556 0.35 -0.09
54557 0.29 -0.06
54558 0.28 -0.09
54559 0.26 -0.17
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.