2012 FN

2012 FN
Discovery
Discovered by Mount Lemmon Survey (G96)
Discovery date 17 March 2012
Designations
Apollo NEO[1]
Orbital characteristics[1]
Epoch 17 March 2012 (JD 2456003.5)
Uncertainty parameter 9
Aphelion 1.4500 AU (216.92 Gm)
Perihelion 0.99291 AU (148.537 Gm)
1.2214 AU (182.72 Gm)
Eccentricity 0.18710
1.35 yr (493.07 d)
21.742°
Inclination 3.2329°
356.91°
147.89°
Earth MOID 0.015601 AU (2.3339 Gm)
Jupiter MOID 3.54794 AU (530.764 Gm)
Physical characteristics
Dimensions ~5 meters (16 ft)
29.2[1]

    2012 FN is an Apollo asteroid and a near-Earth object[1] that has a 1 in 4 billion chance of impacting Earth on 7 March 2113.[2] It is estimated to be 5 meters in diameter, which means that it poses no threat if it impacts Earth. An impact would have the kinetic energy of about 3 kt of TNT,[2] and would probably result in an air burst in the upper atmosphere. It is the least threatening asteroid listed on the Sentry Risk Table.[3] The very short observation arc of only 3 hours[2] results in a very poorly constrained orbit, and it could just as easily be 2 AU from Earth on 7 March 2113.[4]

    See also

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: (2012 FN)" (last observation: 2012-03-17; arc: 3 hours; uncertainty: 9). Jet Propulsion Laboratory. Retrieved 1 April 2016.
    2. 1 2 3 NASA JPL. "2012 FN Impact Risk". Retrieved 2014-10-25.
    3. ↑ Sentry Risk Table (NASA JPL)
    4. ↑ "2012FN Ephemerides for 6-8 March 2113". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 2014-10-25.

    External links


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