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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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24 April 2008 Vol. XXI No. 017
______________________________________________________________________
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 18 54574 -.02039 .00009 .51731 .00009 -.381622 .000004
8 4 19 54575 -.01697 .00009 .51932 .00009 -.382941 .000016
8 4 20 54576 -.01374 .00009 .52158 .00009 -.384169 .000016
8 4 21 54577 -.01092 .00009 .52382 .00009 -.385237 .000016
8 4 22 54578 -.00827 .00009 .52581 .00009 -.386171 .000017
8 4 23 54579 -.00573 .00009 .52743 .00009 -.386964 .000048
8 4 24 54580 -.00309 .00009 .52846 .00009 -.387672 .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 = .0678 - .0600 cos A + .0886 sin A - .0039 cos C + .0927 sin C
y = .3533 + .0801 cos A + .0607 sin A + .0927 cos C + .0039 sin C
UT1-UTC = -.3547 - .00079 (MJD - 54588) - (UT2-UT1)
where A = 2*pi*(MJD-54580)/365.25 and C = 2*pi*(MJD-54580)/435.
TAI-UTC(MJD 54581) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54580)**0.80 S t = 0.00025 (MJD-54580)**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 4 25 54581 -0.0003 0.5295 -0.38836
2008 4 26 54582 0.0027 0.5303 -0.38906
2008 4 27 54583 0.0058 0.5312 -0.38982
2008 4 28 54584 0.0089 0.5320 -0.39073
2008 4 29 54585 0.0120 0.5329 -0.39186
2008 4 30 54586 0.0152 0.5338 -0.39322
2008 5 1 54587 0.0183 0.5347 -0.39481
2008 5 2 54588 0.0215 0.5355 -0.39659
2008 5 3 54589 0.0247 0.5362 -0.39841
2008 5 4 54590 0.0278 0.5369 -0.40016
2008 5 5 54591 0.0310 0.5375 -0.40168
2008 5 6 54592 0.0341 0.5380 -0.40288
2008 5 7 54593 0.0373 0.5385 -0.40378
2008 5 8 54594 0.0405 0.5389 -0.40444
2008 5 9 54595 0.0437 0.5393 -0.40499
2008 5 10 54596 0.0470 0.5397 -0.40558
2008 5 11 54597 0.0502 0.5400 -0.40629
2008 5 12 54598 0.0534 0.5402 -0.40714
2008 5 13 54599 0.0567 0.5404 -0.40809
2008 5 14 54600 0.0599 0.5406 -0.40911
2008 5 15 54601 0.0632 0.5407 -0.41012
2008 5 16 54602 0.0664 0.5407 -0.41106
2008 5 17 54603 0.0697 0.5407 -0.41185
2008 5 18 54604 0.0730 0.5406 -0.41246
2008 5 19 54605 0.0762 0.5405 -0.41287
2008 5 20 54606 0.0795 0.5404 -0.41310
2008 5 21 54607 0.0827 0.5402 -0.41318
2008 5 22 54608 0.0860 0.5399 -0.41318
2008 5 23 54609 0.0892 0.5396 -0.41315
2008 5 24 54610 0.0924 0.5393 -0.41316
2008 5 25 54611 0.0957 0.5389 -0.41327
2008 5 26 54612 0.0989 0.5384 -0.41352
2008 5 27 54613 0.1021 0.5379 -0.41396
2008 5 28 54614 0.1053 0.5374 -0.41459
2008 5 29 54615 0.1085 0.5368 -0.41539
2008 5 30 54616 0.1117 0.5361 -0.41627
2008 5 31 54617 0.1149 0.5354 -0.41712
2008 6 1 54618 0.1181 0.5347 -0.41781
2008 6 2 54619 0.1212 0.5339 -0.41824
2008 6 3 54620 0.1244 0.5330 -0.41837
2008 6 4 54621 0.1275 0.5322 -0.41827
2008 6 5 54622 0.1306 0.5312 -0.41807
2008 6 6 54623 0.1337 0.5302 -0.41791
2008 6 7 54624 0.1368 0.5292 -0.41791
2008 6 8 54625 0.1399 0.5281 -0.41813
2008 6 9 54626 0.1429 0.5270 -0.41853
2008 6 10 54627 0.1460 0.5258 -0.41904
2008 6 11 54628 0.1490 0.5246 -0.41956
2008 6 12 54629 0.1520 0.5233 -0.42001
2008 6 13 54630 0.1549 0.5220 -0.42032
2008 6 14 54631 0.1579 0.5207 -0.42046
2008 6 15 54632 0.1608 0.5193 -0.42041
2008 6 16 54633 0.1637 0.5178 -0.42018
2008 6 17 54634 0.1666 0.5164 -0.41980
2008 6 18 54635 0.1695 0.5148 -0.41932
2008 6 19 54636 0.1723 0.5132 -0.41883
2008 6 20 54637 0.1751 0.5116 -0.41838
2008 6 21 54638 0.1778 0.5100 -0.41805
2008 6 22 54639 0.1806 0.5083 -0.41789
2008 6 23 54640 0.1833 0.5065 -0.41792
2008 6 24 54641 0.1860 0.5047 -0.41815
2008 6 25 54642 0.1886 0.5029 -0.41855
2008 6 26 54643 0.1913 0.5010 -0.41906
2008 6 27 54644 0.1939 0.4991 -0.41957
2008 6 28 54645 0.1964 0.4972 -0.41999
2008 6 29 54646 0.1990 0.4952 -0.42021
2008 6 30 54647 0.2015 0.4932 -0.42019
2008 7 1 54648 0.2039 0.4911 -0.41995
2008 7 2 54649 0.2063 0.4890 -0.41958
2008 7 3 54650 0.2087 0.4869 -0.41920
2008 7 4 54651 0.2111 0.4847 -0.41897
2008 7 5 54652 0.2134 0.4825 -0.41895
2008 7 6 54653 0.2157 0.4802 -0.41916
2008 7 7 54654 0.2179 0.4780 -0.41952
2008 7 8 54655 0.2201 0.4757 -0.41993
2008 7 9 54656 0.2223 0.4733 -0.42028
2008 7 10 54657 0.2244 0.4709 -0.42049
2008 7 11 54658 0.2265 0.4685 -0.42050
2008 7 12 54659 0.2285 0.4661 -0.42032
2008 7 13 54660 0.2305 0.4636 -0.41993
2008 7 14 54661 0.2325 0.4611 -0.41937
2008 7 15 54662 0.2344 0.4585 -0.41870
2008 7 16 54663 0.2363 0.4560 -0.41798
2008 7 17 54664 0.2381 0.4534 -0.41731
2008 7 18 54665 0.2399 0.4508 -0.41675
2008 7 19 54666 0.2417 0.4481 -0.41636
2008 7 20 54667 0.2434 0.4454 -0.41619
2008 7 21 54668 0.2450 0.4427 -0.41624
2008 7 22 54669 0.2466 0.4400 -0.41649
2008 7 23 54670 0.2482 0.4372 -0.41686
2008 7 24 54671 0.2497 0.4345 -0.41726
2008 7 25 54672 0.2512 0.4317 -0.41758
2008 7 26 54673 0.2526 0.4288 -0.41774
2008 7 27 54674 0.2539 0.4260 -0.41767
2008 7 28 54675 0.2553 0.4231 -0.41737
2008 7 29 54676 0.2565 0.4202 -0.41693
2008 7 30 54677 0.2578 0.4173 -0.41645
2008 7 31 54678 0.2589 0.4144 -0.41607
2008 8 1 54679 0.2601 0.4115 -0.41590
2008 8 2 54680 0.2612 0.4085 -0.41598
2008 8 3 54681 0.2622 0.4055 -0.41627
2008 8 4 54682 0.2632 0.4025 -0.41668
2008 8 5 54683 0.2641 0.3995 -0.41709
2008 8 6 54684 0.2650 0.3965 -0.41741
2008 8 7 54685 0.2658 0.3935 -0.41755
2008 8 8 54686 0.2666 0.3904 -0.41749
2008 8 9 54687 0.2673 0.3874 -0.41723
2008 8 10 54688 0.2679 0.3843 -0.41681
2008 8 11 54689 0.2686 0.3812 -0.41625
2008 8 12 54690 0.2691 0.3781 -0.41563
2008 8 13 54691 0.2696 0.3751 -0.41504
2008 8 14 54692 0.2701 0.3719 -0.41454
2008 8 15 54693 0.2705 0.3688 -0.41422
2008 8 16 54694 0.2709 0.3657 -0.41411
2008 8 17 54695 0.2712 0.3626 -0.41424
2008 8 18 54696 0.2714 0.3595 -0.41459
2008 8 19 54697 0.2716 0.3563 -0.41510
2008 8 20 54698 0.2718 0.3532 -0.41567
2008 8 21 54699 0.2719 0.3501 -0.41619
2008 8 22 54700 0.2719 0.3469 -0.41656
2008 8 23 54701 0.2719 0.3438 -0.41671
2008 8 24 54702 0.2718 0.3406 -0.41665
2008 8 25 54703 0.2717 0.3375 -0.41643
2008 8 26 54704 0.2715 0.3343 -0.41617
2008 8 27 54705 0.2713 0.3312 -0.41598
2008 8 28 54706 0.2710 0.3281 -0.41599
2008 8 29 54707 0.2707 0.3249 -0.41625
2008 8 30 54708 0.2703 0.3218 -0.41676
2008 8 31 54709 0.2698 0.3187 -0.41746
2008 9 1 54710 0.2694 0.3156 -0.41824
2008 9 2 54711 0.2688 0.3125 -0.41898
2008 9 3 54712 0.2682 0.3094 -0.41959
2008 9 4 54713 0.2676 0.3063 -0.42002
2008 9 5 54714 0.2669 0.3032 -0.42025
2008 9 6 54715 0.2661 0.3002 -0.42031
2008 9 7 54716 0.2653 0.2971 -0.42023
2008 9 8 54717 0.2645 0.2941 -0.42008
2008 9 9 54718 0.2635 0.2910 -0.41994
2008 9 10 54719 0.2626 0.2880 -0.41988
2008 9 11 54720 0.2616 0.2850 -0.41996
2008 9 12 54721 0.2605 0.2820 -0.42026
2008 9 13 54722 0.2594 0.2790 -0.42081
2008 9 14 54723 0.2582 0.2761 -0.42160
2008 9 15 54724 0.2570 0.2732 -0.42259
2008 9 16 54725 0.2558 0.2702 -0.42370
2008 9 17 54726 0.2545 0.2673 -0.42481
2008 9 18 54727 0.2531 0.2644 -0.42578
2008 9 19 54728 0.2517 0.2616 -0.42654
2008 9 20 54729 0.2502 0.2588 -0.42706
2008 9 21 54730 0.2487 0.2559 -0.42739
2008 9 22 54731 0.2472 0.2531 -0.42764
2008 9 23 54732 0.2456 0.2504 -0.42792
2008 9 24 54733 0.2440 0.2476 -0.42837
2008 9 25 54734 0.2423 0.2449 -0.42904
2008 9 26 54735 0.2405 0.2422 -0.42995
2008 9 27 54736 0.2388 0.2395 -0.43106
2008 9 28 54737 0.2369 0.2369 -0.43228
2008 9 29 54738 0.2351 0.2343 -0.43351
2008 9 30 54739 0.2332 0.2317 -0.43465
2008 10 1 54740 0.2312 0.2291 -0.43563
2008 10 2 54741 0.2292 0.2266 -0.43641
2008 10 3 54742 0.2272 0.2241 -0.43700
2008 10 4 54743 0.2251 0.2216 -0.43744
2008 10 5 54744 0.2230 0.2192 -0.43778
2008 10 6 54745 0.2208 0.2168 -0.43809
2008 10 7 54746 0.2186 0.2144 -0.43844
2008 10 8 54747 0.2163 0.2121 -0.43891
2008 10 9 54748 0.2141 0.2098 -0.43957
2008 10 10 54749 0.2117 0.2075 -0.44044
2008 10 11 54750 0.2094 0.2053 -0.44156
2008 10 12 54751 0.2070 0.2031 -0.44289
2008 10 13 54752 0.2045 0.2009 -0.44439
2008 10 14 54753 0.2021 0.1988 -0.44594
2008 10 15 54754 0.1996 0.1967 -0.44741
2008 10 16 54755 0.1970 0.1947 -0.44869
2008 10 17 54756 0.1945 0.1926 -0.44972
2008 10 18 54757 0.1919 0.1907 -0.45053
2008 10 19 54758 0.1892 0.1887 -0.45120
2008 10 20 54759 0.1866 0.1869 -0.45186
2008 10 21 54760 0.1838 0.1850 -0.45264
2008 10 22 54761 0.1811 0.1832 -0.45363
2008 10 23 54762 0.1784 0.1814 -0.45484
2008 10 24 54763 0.1756 0.1797 -0.45625
2008 10 25 54764 0.1727 0.1780 -0.45777
2008 10 26 54765 0.1699 0.1764 -0.45931
2008 10 27 54766 0.1670 0.1748 -0.46079
2008 10 28 54767 0.1641 0.1732 -0.46213
2008 10 29 54768 0.1612 0.1717 -0.46327
2008 10 30 54769 0.1582 0.1702 -0.46421
2008 10 31 54770 0.1553 0.1688 -0.46497
2008 11 1 54771 0.1523 0.1674 -0.46558
2008 11 2 54772 0.1493 0.1661 -0.46611
2008 11 3 54773 0.1462 0.1648 -0.46662
2008 11 4 54774 0.1431 0.1636 -0.46719
2008 11 5 54775 0.1401 0.1624 -0.46786
2008 11 6 54776 0.1370 0.1613 -0.46869
2008 11 7 54777 0.1338 0.1602 -0.46967
2008 11 8 54778 0.1307 0.1591 -0.47081
2008 11 9 54779 0.1276 0.1581 -0.47207
2008 11 10 54780 0.1244 0.1572 -0.47338
2008 11 11 54781 0.1212 0.1563 -0.47465
2008 11 12 54782 0.1180 0.1554 -0.47577
2008 11 13 54783 0.1148 0.1546 -0.47668
2008 11 14 54784 0.1116 0.1538 -0.47735
2008 11 15 54785 0.1083 0.1531 -0.47785
2008 11 16 54786 0.1051 0.1525 -0.47830
2008 11 17 54787 0.1018 0.1518 -0.47884
2008 11 18 54788 0.0985 0.1513 -0.47957
2008 11 19 54789 0.0953 0.1508 -0.48052
2008 11 20 54790 0.0920 0.1503 -0.48166
2008 11 21 54791 0.0887 0.1499 -0.48289
2008 11 22 54792 0.0854 0.1495 -0.48412
2008 11 23 54793 0.0821 0.1492 -0.48525
2008 11 24 54794 0.0788 0.1490 -0.48621
2008 11 25 54795 0.0755 0.1488 -0.48696
2008 11 26 54796 0.0722 0.1486 -0.48751
2008 11 27 54797 0.0689 0.1485 -0.48789
2008 11 28 54798 0.0655 0.1484 -0.48818
2008 11 29 54799 0.0622 0.1484 -0.48845
2008 11 30 54800 0.0589 0.1485 -0.48878
2008 12 1 54801 0.0556 0.1485 -0.48920
2008 12 2 54802 0.0523 0.1487 -0.48976
2008 12 3 54803 0.0490 0.1489 -0.49050
2008 12 4 54804 0.0457 0.1491 -0.49142
2008 12 5 54805 0.0424 0.1494 -0.49251
2008 12 6 54806 0.0391 0.1498 -0.49374
2008 12 7 54807 0.0358 0.1502 -0.49511
2008 12 8 54808 0.0325 0.1506 -0.49649
2008 12 9 54809 0.0293 0.1511 -0.49768
2008 12 10 54810 0.0260 0.1516 -0.49872
2008 12 11 54811 0.0228 0.1522 -0.49956
2008 12 12 54812 0.0195 0.1529 -0.50022
2008 12 13 54813 0.0163 0.1536 -0.50077
2008 12 14 54814 0.0131 0.1543 -0.50132
2008 12 15 54815 0.0099 0.1551 -0.50203
2008 12 16 54816 0.0067 0.1559 -0.50299
2008 12 17 54817 0.0036 0.1568 -0.50414
2008 12 18 54818 0.0004 0.1578 -0.50543
2008 12 19 54819 -0.0027 0.1587 -0.50673
2008 12 20 54820 -0.0058 0.1598 -0.50794
2008 12 21 54821 -0.0089 0.1608 -0.50899
2008 12 22 54822 -0.0120 0.1620 -0.50978
2008 12 23 54823 -0.0151 0.1631 -0.51038
2008 12 24 54824 -0.0181 0.1644 -0.51083
2008 12 25 54825 -0.0211 0.1656 -0.51112
2008 12 26 54826 -0.0241 0.1669 -0.51131
2008 12 27 54827 -0.0271 0.1683 -0.51148
2008 12 28 54828 -0.0300 0.1697 -0.51171
2008 12 29 54829 -0.0329 0.1711 -0.51204
2008 12 30 54830 -0.0358 0.1726 -0.51255
2008 12 31 54831 -0.0387 0.1742 -0.51324
2009 1 1 54832 -0.0415 0.1758 -0.51408
2009 1 2 54833 -0.0443 0.1774 -0.51501
2009 1 3 54834 -0.0471 0.1790 -0.51592
2009 1 4 54835 -0.0499 0.1807 -0.51679
2009 1 5 54836 -0.0526 0.1825 -0.51756
2009 1 6 54837 -0.0553 0.1843 -0.51816
2009 1 7 54838 -0.0580 0.1861 -0.51858
2009 1 8 54839 -0.0606 0.1880 -0.51881
2009 1 9 54840 -0.0632 0.1899 -0.51893
2009 1 10 54841 -0.0657 0.1919 -0.51908
2009 1 11 54842 -0.0683 0.1939 -0.51942
2009 1 12 54843 -0.0708 0.1959 -0.52004
2009 1 13 54844 -0.0732 0.1980 -0.52095
2009 1 14 54845 -0.0756 0.2001 -0.52207
2009 1 15 54846 -0.0780 0.2022 -0.52325
2009 1 16 54847 -0.0804 0.2044 -0.52433
2009 1 17 54848 -0.0827 0.2066 -0.52519
2009 1 18 54849 -0.0850 0.2089 -0.52587
2009 1 19 54850 -0.0872 0.2111 -0.52633
2009 1 20 54851 -0.0894 0.2135 -0.52662
2009 1 21 54852 -0.0916 0.2158 -0.52683
2009 1 22 54853 -0.0937 0.2182 -0.52693
2009 1 23 54854 -0.0957 0.2206 -0.52699
2009 1 24 54855 -0.0978 0.2231 -0.52711
2009 1 25 54856 -0.0998 0.2256 -0.52741
2009 1 26 54857 -0.1017 0.2281 -0.52792
2009 1 27 54858 -0.1036 0.2306 -0.52866
2009 1 28 54859 -0.1055 0.2332 -0.52962
2009 1 29 54860 -0.1073 0.2358 -0.53073
2009 1 30 54861 -0.1091 0.2384 -0.53195
2009 1 31 54862 -0.1108 0.2411 -0.53321
2009 2 1 54863 -0.1125 0.2437 -0.53437
2009 2 2 54864 -0.1141 0.2464 -0.53538
2009 2 3 54865 -0.1157 0.2492 -0.53622
2009 2 4 54866 -0.1172 0.2519 -0.53689
2009 2 5 54867 -0.1187 0.2547 -0.53738
2009 2 6 54868 -0.1202 0.2575 -0.53779
2009 2 7 54869 -0.1216 0.2603 -0.53827
2009 2 8 54870 -0.1229 0.2632 -0.53896
2009 2 9 54871 -0.1242 0.2660 -0.53997
2009 2 10 54872 -0.1255 0.2689 -0.54126
2009 2 11 54873 -0.1267 0.2718 -0.54274
2009 2 12 54874 -0.1278 0.2748 -0.54429
2009 2 13 54875 -0.1289 0.2777 -0.54575
2009 2 14 54876 -0.1300 0.2806 -0.54705
2009 2 15 54877 -0.1310 0.2836 -0.54816
2009 2 16 54878 -0.1319 0.2866 -0.54904
2009 2 17 54879 -0.1328 0.2896 -0.54973
2009 2 18 54880 -0.1337 0.2926 -0.55032
2009 2 19 54881 -0.1345 0.2957 -0.55087
2009 2 20 54882 -0.1352 0.2987 -0.55143
2009 2 21 54883 -0.1359 0.3018 -0.55216
2009 2 22 54884 -0.1366 0.3048 -0.55302
2009 2 23 54885 -0.1372 0.3079 -0.55408
2009 2 24 54886 -0.1377 0.3110 -0.55530
2009 2 25 54887 -0.1382 0.3141 -0.55675
2009 2 26 54888 -0.1386 0.3172 -0.55841
2009 2 27 54889 -0.1390 0.3203 -0.56014
2009 2 28 54890 -0.1393 0.3234 -0.56186
2009 3 1 54891 -0.1396 0.3265 -0.56351
2009 3 2 54892 -0.1398 0.3296 -0.56503
2009 3 3 54893 -0.1400 0.3327 -0.56636
2009 3 4 54894 -0.1401 0.3359 -0.56750
2009 3 5 54895 -0.1402 0.3390 -0.56857
2009 3 6 54896 -0.1402 0.3421 -0.56972
2009 3 7 54897 -0.1402 0.3453 -0.57100
2009 3 8 54898 -0.1401 0.3484 -0.57249
2009 3 9 54899 -0.1400 0.3515 -0.57422
2009 3 10 54900 -0.1398 0.3546 -0.57612
2009 3 11 54901 -0.1395 0.3578 -0.57811
2009 3 12 54902 -0.1392 0.3609 -0.58004
2009 3 13 54903 -0.1389 0.3640 -0.58183
2009 3 14 54904 -0.1385 0.3671 -0.58342
2009 3 15 54905 -0.1380 0.3702 -0.58476
2009 3 16 54906 -0.1375 0.3733 -0.58586
2009 3 17 54907 -0.1369 0.3764 -0.58677
2009 3 18 54908 -0.1363 0.3795 -0.58759
2009 3 19 54909 -0.1356 0.3825 -0.58833
2009 3 20 54910 -0.1349 0.3856 -0.58911
2009 3 21 54911 -0.1342 0.3886 -0.59002
2009 3 22 54912 -0.1334 0.3917 -0.59111
2009 3 23 54913 -0.1325 0.3947 -0.59242
2009 3 24 54914 -0.1316 0.3977 -0.59393
2009 3 25 54915 -0.1306 0.4007 -0.59556
2009 3 26 54916 -0.1296 0.4037 -0.59724
2009 3 27 54917 -0.1285 0.4067 -0.59891
2009 3 28 54918 -0.1274 0.4096 -0.60055
2009 3 29 54919 -0.1262 0.4126 -0.60206
2009 3 30 54920 -0.1250 0.4155 -0.60341
2009 3 31 54921 -0.1238 0.4184 -0.60456
2009 4 1 54922 -0.1224 0.4212 -0.60554
2009 4 2 54923 -0.1211 0.4241 -0.60653
2009 4 3 54924 -0.1197 0.4269 -0.60771
2009 4 4 54925 -0.1182 0.4298 -0.60915
2009 4 5 54926 -0.1167 0.4326 -0.61084
2009 4 6 54927 -0.1152 0.4353 -0.61272
2009 4 7 54928 -0.1136 0.4381 -0.61471
2009 4 8 54929 -0.1120 0.4408 -0.61672
2009 4 9 54930 -0.1103 0.4435 -0.61864
2009 4 10 54931 -0.1086 0.4462 -0.62039
2009 4 11 54932 -0.1068 0.4488 -0.62191
2009 4 12 54933 -0.1050 0.4514 -0.62312
2009 4 13 54934 -0.1031 0.4540 -0.62413
2009 4 14 54935 -0.1012 0.4566 -0.62510
2009 4 15 54936 -0.0993 0.4591 -0.62618
2009 4 16 54937 -0.0973 0.4616 -0.62730
2009 4 17 54938 -0.0953 0.4641 -0.62850
2009 4 18 54939 -0.0932 0.4665 -0.62984
2009 4 19 54940 -0.0911 0.4690 -0.63131
2009 4 20 54941 -0.0890 0.4713 -0.63300
2009 4 21 54942 -0.0868 0.4737 -0.63488
2009 4 22 54943 -0.0846 0.4760 -0.63686
2009 4 23 54944 -0.0824 0.4783 -0.63884
2009 4 24 54945 -0.0801 0.4805 -0.64062
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)
54561 -56.57 .74 -6.73 .12
54562 -56.75 .34 -6.32 .20
54563 -57.34 .34 -6.22 .20
54564 -58.00 .47 -6.54 .26
54565 -58.27 .39 -7.07 .21
54566 -58.04 .39 -7.55 .21
54567 -57.52 .39 -7.86 .21
54568 -57.01 .13 -8.02 .11
54569 -56.67 .37 -8.05 .34
54570 -56.52 .37 -7.97 .34
54571 -56.45 .50 -7.85 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54561 0.178 0.294 -0.034 0.120
54562 0.170 0.135 -0.095 0.200
54563 0.184 0.135 -0.133 0.200
54564 0.208 0.187 -0.127 0.260
54565 0.231 0.155 -0.103 0.210
54566 0.247 0.155 -0.105 0.210
54567 0.262 0.155 -0.123 0.210
54568 0.279 0.052 -0.144 0.110
54569 0.301 0.147 -0.152 0.340
54570 0.319 0.147 -0.137 0.340
54571 0.331 0.199 -0.115 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.