37655_Illapa

37655 Illapa

37655 Illapa

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37655 Illapa (provisional designation 1994 PM) is a carbonaceous asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.5 kilometers in diameter. It was discovered, on 1 August 1994, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California, United States.[1]

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Orbit and classification

On 16 August 2003, Illapa made a close approach to Earth of 0.025037 AU (3,750,000 km; 2,330,000 mi).[4]

Physical characteristics

Illapa has an estimated diameter of 0.8 to 1.8 kilometers for an assumed geometric albedo between 0.20 and 0.04.[2] For an assumed albedo of 0.057, which is typical for carbonaceous C-type asteroids, and an absolute magnitude of 17.9,[1] the asteroid has a calculated mean-diameter of 1.5 kilometers. The body has a short rotation period of 2.6556 hours.[1]

Naming

This minor planet was named after Illapa (Apu Illapu), the thunder or weather god from Inca mythology.[1]

References

  1. [1]
    "JPL Small-Body Database Browser: 37655 Illapa (1994 PM)". Jet Propulsion Laboratory. Retrieved 12 April 2016.
  2. [2]
    "( 37655) Illapa". The Near-Earth Asteroids Data Base at E.A.R.N. Archived from the original on 31 May 2012. Retrieved 21 June 2012.
  3. [3]
    "Near-Earth Asteroid Surface Roughness Depends on Compositional Class". NASA/JPL Asteroid Radar Research. 17 July 2012. Archived from the original on 16 October 2011. Retrieved 23 July 2012.
  4. [4]
    "JPL Close-Approach Data: 37655 Illapa (1994 PM)". Retrieved 21 June 2012.
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