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Asteroid Comet Impact Hazards - Florida International University

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Forthcoming Close Approaches To The Earth<br />

Forthcoming Close Approaches To The Earth<br />

The following table lists the predicted minor-planet and comet encounters to within 0.2 AU of the earth<br />

during the next 33 years (from the start of this year). Objects with very uncertain orbits are excluded<br />

from this listing, as are recently-discovered objects whose orbits have been computed without<br />

consideration of planetary perturbations. The distances quoted are from the nominal orbit solutions in<br />

the cited references and can be quite uncertain, particularly for one-opposition objects. Perturbed orbital<br />

solutions consider perturbations by eight major planets (Mercury to Neptune), three minor planets<br />

(Ceres, Pallas and Vesta) and treat the earth and the moon as separate perturbing bodies.<br />

Also available is a list of PHA close-encounters from the start of this year through the end of 2178 and a<br />

list of earth-approaches within 0.2 AU over the period 1900-2178.<br />

Please read our Web policy document.<br />

Object (and name) Date of encounter (TT)<br />

Distance Orbit arc Reference Object (and<br />

name)<br />

JD Calendar (AU)<br />

2004 XM29 2453371.94 2005 Jan. 1.44 0.02378 1opposition,<br />

arc = 21 days MPO 74447 2004 XM29<br />

2004 XD6 2453373.44 2005 Jan. 2.94 0.06890 1opposition,<br />

arc = 24 days MPO 74441 2004 XD6<br />

2000 WP19 2453373.73 2005 Jan. 3.23<br />

0.1550 2 oppositions, 2000-2004 MPO 74049 2000<br />

WP19<br />

2005 BG14 2453376.59 2005 Jan. 6.09 0.07973 1opposition,<br />

arc = 41 days MPO 77807 2005 BG14<br />

2004 YR 2453376.96 2005 Jan. 6.46 0.1849 1opposition,<br />

arc = 198 days MPO 77796 2004 YR<br />

2002 AA29 2453379.22 2005 Jan. 8.72<br />

0.08739 2 oppositions, 2002-2004 MPO 57849 2002<br />

AA29<br />

2005 BN1 2453380.91 2005 Jan. 10.41 0.02395 1opposition,<br />

arc = 18 days MPO 74484 2005 BN1<br />

(27002) 1998 DV9 2453381.90 2005 Jan. 11.40<br />

0.07771 3 oppositions, 1998-2001 MPO 70194 (27002) 1998<br />

http://cfa-www.harvard.edu/iau/lists/CloseApp.html (1 of 259)12/5/2005 4:28:11 PM

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