2002 MN

2002 MN
Discovery[1][2]
Discovered by MIT Lincoln Laboratory
Discovery date June 17, 2002
Designations
Apollo, NEO
Orbital characteristics[3]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 6
Aphelion 2.7189 AU (406.74 Gm)
Perihelion 0.91052 AU (136.212 Gm)
1.8147 AU (271.48 Gm)
Eccentricity 0.49825
2.44 yr (892.90 d)
213.98°
0° 24m 11.448s /day
Inclination 1.0490°
85.2787°
131.479°
Earth MOID 0.000521686 AU (78,043.1 km)
Jupiter MOID 2.25224 AU (336.930 Gm)
Physical characteristics
Dimensions ~73 meters (240 ft)[4]
Mass 5.4×108 kg
23.6

    2002 MN is the provisional name given to a 73-meter Apollo near-Earth asteroid that on June 14, 2002 missed the Earth by only 120,000 km (75,000 mi), about one third the distance to the Moon (0.3 LD).[5] The close approach was second only to the Earth approach by the 10-meter asteroid 1994 XM1.[5] 2002 MN was discovered on June 17, 2002 three days after closest approach.[1] Its mass and relative velocity were in the same general range as the object ascribed to the Tunguska event of 1908, which leveled over 2,100 km2 (800 sq mi) of trees in Siberia. 2002 MN has an observation arc of 53 days with an uncertainty parameter of 6.[3] There is a cumulative 1 in 50,000 chance that the asteroid could impact Earth sometime after 2100 and a 1 in 50,000 chance of impact on 16 June 2100.[4]

    References

    1. 1 2 "MPEC 2002-M14 : 2002 MN". IAU Minor Planet Center. 2002-06-18. Retrieved 2013-01-24. (K02M00N)
    2. ↑ Asteroid's near-miss with Earth - 21 June 2002 - New Scientist
    3. 1 2 "JPL Close-Approach Data: (2002 MN)". Retrieved 30 March 2016.
    4. 1 2 "Earth Impact Risk Summary: 2002 MN". NASA/JPL Near-Earth Object Program Office. Retrieved 2014-07-08.
    5. 1 2 Don Yeomans (June 19, 2002). "Asteroid 2002 MN: Second Closest Asteroid Approach to Earth". NASA's Near Earth Object Program Office.

    External links

    Preceded by
    2002 JE9    		 Large NEO Earth close approach
    (inside the orbit of the Moon)
    14 June 2002     		Succeeded by
    (308635) 2005 YU55


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