**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
3 April 2008 Vol. XXI No. 014
______________________________________________________________________
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 3 28 54553 -.07224 .00009 .48285 .00009 -.357964 .000013
8 3 29 54554 -.07059 .00009 .48490 .00009 -.358601 .000014
8 3 30 54555 -.06873 .00009 .48665 .00010 -.359259 .000014
8 3 31 54556 -.06662 .00009 .48816 .00009 -.360030 .000012
8 4 1 54557 -.06448 .00009 .48978 .00009 -.360993 .000011
8 4 2 54558 -.06199 .00010 .49163 .00009 -.362183 .000011
8 4 3 54559 -.05900 .00010 .49353 .00009 -.363655 .000057
IERS Final Values
MJD x y UT1-UTC
" " s
8 2 4 54500 -.1205 .3384 -.30452
8 2 5 54501 -.1208 .3412 -.30521
8 2 6 54502 -.1213 .3441 -.30606
8 2 7 54503 -.1221 .3469 -.30717
8 2 8 54504 -.1229 .3495 -.30847
8 2 9 54505 -.1235 .3520 -.30997
8 2 10 54506 -.1240 .3549 -.31157
8 2 11 54507 -.1247 .3577 -.31320
8 2 12 54508 -.1257 .3600 -.31483
8 2 13 54509 -.1261 .3619 -.31616
8 2 14 54510 -.1258 .3644 -.31729
8 2 15 54511 -.1253 .3672 -.31823
8 2 16 54512 -.1253 .3695 -.31892
8 2 17 54513 -.1257 .3715 -.31947
8 2 18 54514 -.1265 .3740 -.32007
8 2 19 54515 -.1269 .3768 -.32087
8 2 20 54516 -.1272 .3796 -.32193
8 2 21 54517 -.1274 .3822 -.32316
8 2 22 54518 -.1274 .3849 -.32450
8 2 23 54519 -.1275 .3879 -.32584
8 2 24 54520 -.1272 .3909 -.32710
8 2 25 54521 -.1268 .3939 -.32829
8 2 26 54522 -.1264 .3965 -.32928
8 2 27 54523 -.1254 .3990 -.33006
8 2 28 54524 -.1242 .4017 -.33062
8 2 29 54525 -.1228 .4041 -.33097
8 3 1 54526 -.1213 .4068 -.33121
8 3 2 54527 -.1201 .4098 -.33141
8 3 3 54528 -.1191 .4127 -.33179
8 3 4 54529 -.1181 .4159 -.33224
_______________________________________________________________________
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 = .0725 - .0877 cos A + .0477 sin A - .0385 cos C + .0984 sin C
y = .3557 + .0419 cos A + .0842 sin A + .0984 cos C + .0385 sin C
UT1-UTC = -.3406 - .00081 (MJD - 54567) - (UT2-UT1)
where A = 2*pi*(MJD-54559)/365.25 and C = 2*pi*(MJD-54559)/435.
TAI-UTC(MJD 54560) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-54559)**0.80 S t = 0.00025 (MJD-54559)**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 4 54560 -0.0562 0.4956 -0.36540
2008 4 5 54561 -0.0533 0.4975 -0.36732
2008 4 6 54562 -0.0505 0.4995 -0.36923
2008 4 7 54563 -0.0477 0.5013 -0.37093
2008 4 8 54564 -0.0450 0.5032 -0.37232
2008 4 9 54565 -0.0423 0.5049 -0.37338
2008 4 10 54566 -0.0396 0.5066 -0.37416
2008 4 11 54567 -0.0369 0.5082 -0.37481
2008 4 12 54568 -0.0342 0.5098 -0.37546
2008 4 13 54569 -0.0315 0.5114 -0.37626
2008 4 14 54570 -0.0287 0.5129 -0.37728
2008 4 15 54571 -0.0259 0.5143 -0.37853
2008 4 16 54572 -0.0231 0.5157 -0.37993
2008 4 17 54573 -0.0203 0.5171 -0.38140
2008 4 18 54574 -0.0174 0.5185 -0.38287
2008 4 19 54575 -0.0145 0.5197 -0.38427
2008 4 20 54576 -0.0116 0.5210 -0.38555
2008 4 21 54577 -0.0087 0.5222 -0.38664
2008 4 22 54578 -0.0058 0.5234 -0.38752
2008 4 23 54579 -0.0028 0.5245 -0.38818
2008 4 24 54580 0.0001 0.5255 -0.38867
2008 4 25 54581 0.0031 0.5266 -0.38906
2008 4 26 54582 0.0061 0.5276 -0.38943
2008 4 27 54583 0.0092 0.5285 -0.38985
2008 4 28 54584 0.0122 0.5294 -0.39040
2008 4 29 54585 0.0153 0.5302 -0.39113
2008 4 30 54586 0.0183 0.5310 -0.39210
2008 5 1 54587 0.0214 0.5318 -0.39329
2008 5 2 54588 0.0245 0.5325 -0.39464
2008 5 3 54589 0.0276 0.5331 -0.39606
2008 5 4 54590 0.0307 0.5337 -0.39740
2008 5 5 54591 0.0339 0.5343 -0.39853
2008 5 6 54592 0.0370 0.5348 -0.39936
2008 5 7 54593 0.0402 0.5353 -0.39992
2008 5 8 54594 0.0433 0.5357 -0.40029
2008 5 9 54595 0.0465 0.5361 -0.40063
2008 5 10 54596 0.0496 0.5364 -0.40108
2008 5 11 54597 0.0528 0.5367 -0.40172
2008 5 12 54598 0.0560 0.5369 -0.40256
2008 5 13 54599 0.0592 0.5371 -0.40356
2008 5 14 54600 0.0624 0.5372 -0.40465
2008 5 15 54601 0.0656 0.5373 -0.40575
2008 5 16 54602 0.0688 0.5374 -0.40678
2008 5 17 54603 0.0720 0.5374 -0.40767
2008 5 18 54604 0.0752 0.5373 -0.40840
2008 5 19 54605 0.0783 0.5372 -0.40895
2008 5 20 54606 0.0815 0.5370 -0.40931
2008 5 21 54607 0.0847 0.5368 -0.40953
2008 5 22 54608 0.0879 0.5366 -0.40965
2008 5 23 54609 0.0911 0.5363 -0.40974
2008 5 24 54610 0.0943 0.5359 -0.40989
2008 5 25 54611 0.0974 0.5355 -0.41015
2008 5 26 54612 0.1006 0.5351 -0.41057
2008 5 27 54613 0.1038 0.5346 -0.41120
2008 5 28 54614 0.1069 0.5341 -0.41204
2008 5 29 54615 0.1100 0.5335 -0.41307
2008 5 30 54616 0.1132 0.5328 -0.41420
2008 5 31 54617 0.1163 0.5321 -0.41531
2008 6 1 54618 0.1194 0.5314 -0.41627
2008 6 2 54619 0.1225 0.5306 -0.41698
2008 6 3 54620 0.1256 0.5298 -0.41740
2008 6 4 54621 0.1286 0.5289 -0.41758
2008 6 5 54622 0.1317 0.5280 -0.41766
2008 6 6 54623 0.1347 0.5271 -0.41778
2008 6 7 54624 0.1377 0.5260 -0.41805
2008 6 8 54625 0.1407 0.5250 -0.41853
2008 6 9 54626 0.1437 0.5239 -0.41916
2008 6 10 54627 0.1467 0.5227 -0.41989
2008 6 11 54628 0.1496 0.5215 -0.42060
2008 6 12 54629 0.1526 0.5203 -0.42122
2008 6 13 54630 0.1555 0.5190 -0.42169
2008 6 14 54631 0.1583 0.5177 -0.42197
2008 6 15 54632 0.1612 0.5163 -0.42205
2008 6 16 54633 0.1640 0.5149 -0.42194
2008 6 17 54634 0.1669 0.5135 -0.42168
2008 6 18 54635 0.1696 0.5120 -0.42131
2008 6 19 54636 0.1724 0.5104 -0.42091
2008 6 20 54637 0.1751 0.5088 -0.42055
2008 6 21 54638 0.1778 0.5072 -0.42032
2008 6 22 54639 0.1805 0.5055 -0.42024
2008 6 23 54640 0.1832 0.5038 -0.42036
2008 6 24 54641 0.1858 0.5021 -0.42068
2008 6 25 54642 0.1884 0.5003 -0.42115
2008 6 26 54643 0.1910 0.4985 -0.42172
2008 6 27 54644 0.1935 0.4966 -0.42229
2008 6 28 54645 0.1960 0.4947 -0.42276
2008 6 29 54646 0.1985 0.4928 -0.42301
2008 6 30 54647 0.2009 0.4908 -0.42300
2008 7 1 54648 0.2033 0.4888 -0.42275
2008 7 2 54649 0.2057 0.4867 -0.42235
2008 7 3 54650 0.2080 0.4846 -0.42195
2008 7 4 54651 0.2103 0.4825 -0.42168
2008 7 5 54652 0.2126 0.4803 -0.42163
2008 7 6 54653 0.2148 0.4781 -0.42179
2008 7 7 54654 0.2170 0.4759 -0.42210
2008 7 8 54655 0.2191 0.4736 -0.42245
2008 7 9 54656 0.2212 0.4713 -0.42275
2008 7 10 54657 0.2233 0.4690 -0.42291
2008 7 11 54658 0.2253 0.4666 -0.42288
2008 7 12 54659 0.2273 0.4643 -0.42265
2008 7 13 54660 0.2293 0.4618 -0.42222
2008 7 14 54661 0.2312 0.4594 -0.42162
2008 7 15 54662 0.2330 0.4569 -0.42090
2008 7 16 54663 0.2348 0.4544 -0.42014
2008 7 17 54664 0.2366 0.4519 -0.41941
2008 7 18 54665 0.2384 0.4493 -0.41880
2008 7 19 54666 0.2400 0.4467 -0.41835
2008 7 20 54667 0.2417 0.4441 -0.41812
2008 7 21 54668 0.2433 0.4414 -0.41809
2008 7 22 54669 0.2449 0.4388 -0.41824
2008 7 23 54670 0.2464 0.4361 -0.41852
2008 7 24 54671 0.2478 0.4334 -0.41882
2008 7 25 54672 0.2493 0.4306 -0.41905
2008 7 26 54673 0.2506 0.4279 -0.41911
2008 7 27 54674 0.2520 0.4251 -0.41895
2008 7 28 54675 0.2532 0.4223 -0.41858
2008 7 29 54676 0.2545 0.4195 -0.41806
2008 7 30 54677 0.2557 0.4166 -0.41751
2008 7 31 54678 0.2568 0.4138 -0.41707
2008 8 1 54679 0.2579 0.4109 -0.41685
2008 8 2 54680 0.2589 0.4080 -0.41689
2008 8 3 54681 0.2599 0.4051 -0.41714
2008 8 4 54682 0.2608 0.4022 -0.41752
2008 8 5 54683 0.2617 0.3993 -0.41791
2008 8 6 54684 0.2626 0.3963 -0.41820
2008 8 7 54685 0.2634 0.3933 -0.41832
2008 8 8 54686 0.2641 0.3904 -0.41825
2008 8 9 54687 0.2648 0.3874 -0.41799
2008 8 10 54688 0.2654 0.3844 -0.41756
2008 8 11 54689 0.2660 0.3814 -0.41701
2008 8 12 54690 0.2666 0.3784 -0.41641
2008 8 13 54691 0.2670 0.3753 -0.41583
2008 8 14 54692 0.2675 0.3723 -0.41536
2008 8 15 54693 0.2679 0.3693 -0.41505
2008 8 16 54694 0.2682 0.3662 -0.41497
2008 8 17 54695 0.2685 0.3632 -0.41513
2008 8 18 54696 0.2687 0.3601 -0.41551
2008 8 19 54697 0.2689 0.3571 -0.41605
2008 8 20 54698 0.2690 0.3540 -0.41666
2008 8 21 54699 0.2691 0.3509 -0.41721
2008 8 22 54700 0.2691 0.3479 -0.41761
2008 8 23 54701 0.2691 0.3448 -0.41780
2008 8 24 54702 0.2690 0.3417 -0.41777
2008 8 25 54703 0.2688 0.3387 -0.41759
2008 8 26 54704 0.2687 0.3356 -0.41736
2008 8 27 54705 0.2684 0.3325 -0.41721
2008 8 28 54706 0.2681 0.3295 -0.41725
2008 8 29 54707 0.2678 0.3264 -0.41755
2008 8 30 54708 0.2674 0.3234 -0.41809
2008 8 31 54709 0.2669 0.3203 -0.41882
2008 9 1 54710 0.2665 0.3173 -0.41963
2008 9 2 54711 0.2659 0.3143 -0.42040
2008 9 3 54712 0.2653 0.3112 -0.42104
2008 9 4 54713 0.2647 0.3082 -0.42150
2008 9 5 54714 0.2640 0.3052 -0.42176
2008 9 6 54715 0.2632 0.3022 -0.42185
2008 9 7 54716 0.2624 0.2993 -0.42180
2008 9 8 54717 0.2615 0.2963 -0.42169
2008 9 9 54718 0.2606 0.2933 -0.42158
2008 9 10 54719 0.2597 0.2904 -0.42155
2008 9 11 54720 0.2587 0.2875 -0.42167
2008 9 12 54721 0.2576 0.2845 -0.42200
2008 9 13 54722 0.2565 0.2816 -0.42257
2008 9 14 54723 0.2554 0.2788 -0.42340
2008 9 15 54724 0.2542 0.2759 -0.42443
2008 9 16 54725 0.2529 0.2731 -0.42556
2008 9 17 54726 0.2517 0.2702 -0.42670
2008 9 18 54727 0.2503 0.2674 -0.42770
2008 9 19 54728 0.2489 0.2646 -0.42849
2008 9 20 54729 0.2475 0.2619 -0.42904
2008 9 21 54730 0.2460 0.2591 -0.42939
2008 9 22 54731 0.2445 0.2564 -0.42967
2008 9 23 54732 0.2429 0.2537 -0.42998
2008 9 24 54733 0.2413 0.2510 -0.43045
2008 9 25 54734 0.2396 0.2484 -0.43114
2008 9 26 54735 0.2379 0.2458 -0.43207
2008 9 27 54736 0.2362 0.2432 -0.43321
2008 9 28 54737 0.2344 0.2406 -0.43445
2008 9 29 54738 0.2325 0.2380 -0.43570
2008 9 30 54739 0.2307 0.2355 -0.43686
2008 10 1 54740 0.2287 0.2330 -0.43785
2008 10 2 54741 0.2268 0.2306 -0.43864
2008 10 3 54742 0.2248 0.2281 -0.43924
2008 10 4 54743 0.2227 0.2257 -0.43968
2008 10 5 54744 0.2206 0.2234 -0.44001
2008 10 6 54745 0.2185 0.2210 -0.44030
2008 10 7 54746 0.2163 0.2187 -0.44063
2008 10 8 54747 0.2141 0.2164 -0.44106
2008 10 9 54748 0.2119 0.2142 -0.44165
2008 10 10 54749 0.2096 0.2120 -0.44243
2008 10 11 54750 0.2073 0.2098 -0.44342
2008 10 12 54751 0.2050 0.2077 -0.44461
2008 10 13 54752 0.2026 0.2056 -0.44591
2008 10 14 54753 0.2002 0.2035 -0.44723
2008 10 15 54754 0.1977 0.2015 -0.44845
2008 10 16 54755 0.1952 0.1995 -0.44945
2008 10 17 54756 0.1927 0.1976 -0.45019
2008 10 18 54757 0.1901 0.1957 -0.45072
2008 10 19 54758 0.1876 0.1938 -0.45112
2008 10 20 54759 0.1849 0.1919 -0.45155
2008 10 21 54760 0.1823 0.1901 -0.45212
2008 10 22 54761 0.1796 0.1884 -0.45292
2008 10 23 54762 0.1769 0.1867 -0.45397
2008 10 24 54763 0.1742 0.1850 -0.45524
2008 10 25 54764 0.1714 0.1834 -0.45664
2008 10 26 54765 0.1686 0.1818 -0.45810
2008 10 27 54766 0.1658 0.1802 -0.45951
2008 10 28 54767 0.1630 0.1787 -0.46079
2008 10 29 54768 0.1601 0.1773 -0.46189
2008 10 30 54769 0.1573 0.1758 -0.46278
2008 10 31 54770 0.1543 0.1745 -0.46350
2008 11 1 54771 0.1514 0.1731 -0.46409
2008 11 2 54772 0.1485 0.1719 -0.46462
2008 11 3 54773 0.1455 0.1706 -0.46517
2008 11 4 54774 0.1425 0.1694 -0.46580
2008 11 5 54775 0.1395 0.1683 -0.46656
2008 11 6 54776 0.1365 0.1672 -0.46751
2008 11 7 54777 0.1334 0.1661 -0.46865
2008 11 8 54778 0.1303 0.1651 -0.46999
2008 11 9 54779 0.1273 0.1641 -0.47148
2008 11 10 54780 0.1242 0.1632 -0.47303
2008 11 11 54781 0.1211 0.1624 -0.47456
2008 11 12 54782 0.1179 0.1615 -0.47598
2008 11 13 54783 0.1148 0.1608 -0.47717
2008 11 14 54784 0.1117 0.1600 -0.47811
2008 11 15 54785 0.1085 0.1593 -0.47886
2008 11 16 54786 0.1053 0.1587 -0.47956
2008 11 17 54787 0.1022 0.1581 -0.48033
2008 11 18 54788 0.0990 0.1576 -0.48129
2008 11 19 54789 0.0958 0.1571 -0.48246
2008 11 20 54790 0.0926 0.1567 -0.48379
2008 11 21 54791 0.0894 0.1563 -0.48516
2008 11 22 54792 0.0862 0.1560 -0.48642
2008 11 23 54793 0.0829 0.1557 -0.48751
2008 11 24 54794 0.0797 0.1554 -0.48841
2008 11 25 54795 0.0765 0.1552 -0.48909
2008 11 26 54796 0.0733 0.1551 -0.48958
2008 11 27 54797 0.0701 0.1550 -0.48989
2008 11 28 54798 0.0668 0.1550 -0.49009
2008 11 29 54799 0.0636 0.1550 -0.49023
2008 11 30 54800 0.0604 0.1550 -0.49044
2008 12 1 54801 0.0572 0.1551 -0.49075
2008 12 2 54802 0.0539 0.1553 -0.49120
2008 12 3 54803 0.0507 0.1555 -0.49181
2008 12 4 54804 0.0475 0.1557 -0.49257
2008 12 5 54805 0.0443 0.1560 -0.49345
2008 12 6 54806 0.0411 0.1564 -0.49441
2008 12 7 54807 0.0379 0.1568 -0.49550
2008 12 8 54808 0.0347 0.1572 -0.49661
2008 12 9 54809 0.0316 0.1577 -0.49766
2008 12 10 54810 0.0284 0.1583 -0.49861
2008 12 11 54811 0.0253 0.1589 -0.49934
2008 12 12 54812 0.0221 0.1595 -0.49984
2008 12 13 54813 0.0190 0.1602 -0.50027
2008 12 14 54814 0.0159 0.1609 -0.50080
2008 12 15 54815 0.0128 0.1617 -0.50153
2008 12 16 54816 0.0097 0.1625 -0.50253
2008 12 17 54817 0.0066 0.1634 -0.50376
2008 12 18 54818 0.0036 0.1643 -0.50512
2008 12 19 54819 0.0005 0.1653 -0.50649
2008 12 20 54820 -0.0025 0.1663 -0.50778
2008 12 21 54821 -0.0055 0.1674 -0.50885
2008 12 22 54822 -0.0085 0.1685 -0.50969
2008 12 23 54823 -0.0114 0.1697 -0.51033
2008 12 24 54824 -0.0144 0.1709 -0.51079
2008 12 25 54825 -0.0173 0.1721 -0.51107
2008 12 26 54826 -0.0202 0.1734 -0.51121
2008 12 27 54827 -0.0231 0.1747 -0.51132
2008 12 28 54828 -0.0259 0.1761 -0.51147
2008 12 29 54829 -0.0288 0.1775 -0.51177
2008 12 30 54830 -0.0316 0.1790 -0.51225
2008 12 31 54831 -0.0343 0.1805 -0.51292
2009 1 1 54832 -0.0371 0.1821 -0.51379
2009 1 2 54833 -0.0398 0.1837 -0.51481
2009 1 3 54834 -0.0425 0.1853 -0.51597
2009 1 4 54835 -0.0451 0.1870 -0.51718
2009 1 5 54836 -0.0478 0.1887 -0.51834
2009 1 6 54837 -0.0504 0.1905 -0.51936
2009 1 7 54838 -0.0529 0.1923 -0.52021
2009 1 8 54839 -0.0555 0.1941 -0.52088
2009 1 9 54840 -0.0580 0.1960 -0.52142
2009 1 10 54841 -0.0605 0.1979 -0.52201
2009 1 11 54842 -0.0629 0.1998 -0.52273
2009 1 12 54843 -0.0653 0.2018 -0.52367
2009 1 13 54844 -0.0677 0.2039 -0.52484
2009 1 14 54845 -0.0700 0.2059 -0.52625
2009 1 15 54846 -0.0723 0.2080 -0.52782
2009 1 16 54847 -0.0746 0.2102 -0.52935
2009 1 17 54848 -0.0768 0.2123 -0.53075
2009 1 18 54849 -0.0790 0.2145 -0.53199
2009 1 19 54850 -0.0811 0.2168 -0.53305
2009 1 20 54851 -0.0832 0.2190 -0.53392
2009 1 21 54852 -0.0853 0.2214 -0.53460
2009 1 22 54853 -0.0873 0.2237 -0.53518
2009 1 23 54854 -0.0893 0.2261 -0.53576
2009 1 24 54855 -0.0913 0.2284 -0.53635
2009 1 25 54856 -0.0932 0.2309 -0.53701
2009 1 26 54857 -0.0950 0.2333 -0.53780
2009 1 27 54858 -0.0969 0.2358 -0.53873
2009 1 28 54859 -0.0986 0.2383 -0.53982
2009 1 29 54860 -0.1004 0.2409 -0.54105
2009 1 30 54861 -0.1021 0.2434 -0.54238
2009 1 31 54862 -0.1037 0.2460 -0.54378
2009 2 1 54863 -0.1053 0.2486 -0.54513
2009 2 2 54864 -0.1069 0.2513 -0.54632
2009 2 3 54865 -0.1084 0.2540 -0.54731
2009 2 4 54866 -0.1098 0.2566 -0.54810
2009 2 5 54867 -0.1113 0.2594 -0.54871
2009 2 6 54868 -0.1126 0.2621 -0.54924
2009 2 7 54869 -0.1140 0.2648 -0.54987
2009 2 8 54870 -0.1152 0.2676 -0.55073
2009 2 9 54871 -0.1165 0.2704 -0.55188
2009 2 10 54872 -0.1177 0.2732 -0.55329
2009 2 11 54873 -0.1188 0.2761 -0.55485
2009 2 12 54874 -0.1199 0.2789 -0.55638
2009 2 13 54875 -0.1209 0.2818 -0.55782
2009 2 14 54876 -0.1219 0.2847 -0.55912
2009 2 15 54877 -0.1228 0.2876 -0.56025
2009 2 16 54878 -0.1237 0.2905 -0.56121
2009 2 17 54879 -0.1246 0.2934 -0.56198
2009 2 18 54880 -0.1254 0.2963 -0.56258
2009 2 19 54881 -0.1261 0.2993 -0.56315
2009 2 20 54882 -0.1268 0.3023 -0.56379
2009 2 21 54883 -0.1274 0.3052 -0.56460
2009 2 22 54884 -0.1280 0.3082 -0.56556
2009 2 23 54885 -0.1286 0.3112 -0.56669
2009 2 24 54886 -0.1291 0.3142 -0.56801
2009 2 25 54887 -0.1295 0.3172 -0.56951
2009 2 26 54888 -0.1299 0.3202 -0.57116
2009 2 27 54889 -0.1302 0.3233 -0.57289
2009 2 28 54890 -0.1305 0.3263 -0.57460
2009 3 1 54891 -0.1307 0.3293 -0.57613
2009 3 2 54892 -0.1309 0.3323 -0.57746
2009 3 3 54893 -0.1310 0.3354 -0.57870
2009 3 4 54894 -0.1311 0.3384 -0.57992
2009 3 5 54895 -0.1311 0.3415 -0.58110
2009 3 6 54896 -0.1311 0.3445 -0.58231
2009 3 7 54897 -0.1310 0.3476 -0.58368
2009 3 8 54898 -0.1309 0.3506 -0.58526
2009 3 9 54899 -0.1307 0.3536 -0.58714
2009 3 10 54900 -0.1305 0.3567 -0.58928
2009 3 11 54901 -0.1302 0.3597 -0.59151
2009 3 12 54902 -0.1299 0.3627 -0.59368
2009 3 13 54903 -0.1295 0.3658 -0.59557
2009 3 14 54904 -0.1291 0.3688 -0.59717
2009 3 15 54905 -0.1286 0.3718 -0.59849
2009 3 16 54906 -0.1281 0.3748 -0.59956
2009 3 17 54907 -0.1275 0.3778 -0.60043
2009 3 18 54908 -0.1268 0.3808 -0.60121
2009 3 19 54909 -0.1261 0.3838 -0.60202
2009 3 20 54910 -0.1254 0.3867 -0.60289
2009 3 21 54911 -0.1246 0.3897 -0.60385
2009 3 22 54912 -0.1238 0.3926 -0.60494
2009 3 23 54913 -0.1229 0.3956 -0.60617
2009 3 24 54914 -0.1220 0.3985 -0.60757
2009 3 25 54915 -0.1210 0.4014 -0.60911
2009 3 26 54916 -0.1200 0.4043 -0.61074
2009 3 27 54917 -0.1189 0.4072 -0.61237
2009 3 28 54918 -0.1178 0.4100 -0.61385
2009 3 29 54919 -0.1166 0.4129 -0.61515
2009 3 30 54920 -0.1154 0.4157 -0.61624
2009 3 31 54921 -0.1141 0.4185 -0.61718
2009 4 1 54922 -0.1128 0.4213 -0.61803
2009 4 2 54923 -0.1114 0.4240 -0.61885
2009 4 3 54924 -0.1100 0.4268 -0.61980
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)
54540 -58.65 .74 -6.18 .34
54541 -58.24 .74 -6.32 .34
54542 -57.88 .74 -6.45 .34
54543 -57.56 .35 -6.52 .14
54544 -57.30 .35 -6.46 .14
54545 -57.15 .35 -6.28 .14
IERS Celestial Pole Offset Final Series
MJD dpsi deps
(msec. of arc)
54500 -59.2 -3.8
54501 -59.4 -3.8
54502 -59.3 -3.8
54503 -59.0 -3.8
54504 -58.8 -3.8
54505 -58.9 -3.7
54506 -59.3 -3.6
54507 -59.9 -3.5
54508 -60.3 -3.6
54509 -60.4 -3.7
54510 -60.3 -3.8
54511 -60.0 -3.9
54512 -59.8 -4.1
54513 -59.5 -4.4
54514 -59.2 -4.6
54515 -58.9 -4.6
54516 -58.5 -4.5
54517 -58.2 -4.3
54518 -58.0 -4.2
54519 -57.9 -4.2
54520 -57.9 -4.4
54521 -58.2 -4.7
54522 -58.7 -4.7
54523 -59.1 -4.7
54524 -59.0 -4.6
54525 -58.7 -4.8
54526 -58.2 -5.2
54527 -57.8 -5.5
54528 -57.7 -5.7
54529 -57.9 -5.7
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
54540 0.246 0.294 -0.075 0.340
54541 0.275 0.294 -0.066 0.340
54542 0.294 0.294 -0.064 0.340
54543 0.297 0.139 -0.061 0.140
54544 0.295 0.139 -0.045 0.140
54545 0.295 0.139 -0.029 0.140
IAU2000A Celestial Pole Offset Final Series
MJD dX dY
(msec. of arc)
54500 0.13 0.08
54501 0.12 0.10
54502 0.20 0.03
54503 0.29 -0.06
54504 0.28 -0.14
54505 0.19 -0.12
54506 0.07 -0.09
54507 -0.04 -0.01
54508 -0.04 -0.06
54509 0.03 -0.07
54510 0.11 -0.06
54511 0.20 -0.02
54512 0.20 -0.03
54513 0.20 -0.10
54514 0.18 -0.12
54515 0.14 -0.07
54516 0.15 -0.07
54517 0.17 -0.05
54518 0.20 -0.07
54519 0.26 -0.02
54520 0.35 -0.02
54521 0.35 -0.10
54522 0.29 0.00
54523 0.21 -0.03
54524 0.24 0.05
54525 0.27 -0.02
54526 0.33 -0.14
54527 0.37 -0.15
54528 0.37 -0.19
54529 0.34 -0.14
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.