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37655 Illapa

Asteroid

Field	Value
minorplanet	yes
background	#FFC2E0
name	Illapa
discovery_ref
discoverer	C. S. Shoemaker
E. M. Shoemaker
discovery_site	Palomar Obs.
discovered	1 August 1994
mpc_name	(37655) Illapa
alt_names	1994 PM
named_after	Illapa (Inca mythology)
mp_category	NEOApolloPHA
orbit_ref
epoch	13 January 2016 (JD 2457400.5)
uncertainty	0
observation_arc	7645 days (20.93 yr)
aphelion	2.5901 AU
perihelion	0.36604 AU
semimajor	1.4780 AU
eccentricity	0.75235
period	1.80 yr (656.34 d)
inclination	18.002°
asc_node	139.70°
mean_anomaly	299.48°
mean_motion	/ day
arg_peri	303.72°
moid	0.0235523 AU
mean_diameter	0.792–1.772 km (est.)
1.5 km (generic at 0.057)
rotation
spectral_type	C
abs_magnitude	17.9

E. M. Shoemaker 1.5 km (generic at 0.057)

37655 Illapa (provisional designation ****) 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.

Orbit and classification

On 16 August 2003, Illapa made a close approach to Earth of 0.025037 AU.

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. For an assumed albedo of 0.057, which is typical for carbonaceous C-type asteroids, and an absolute magnitude of 17.9, the asteroid has a calculated mean diameter of 1.5 kilometers. The body has a short rotation period of 2.6556 hours.

Naming

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

References

|access-date=12 April 2016}}

|access-date=2012-06-21 |archive-url=https://web.archive.org/web/20120531124451/http://earn.dlr.de/nea/037655.htm |archive-date=2012-05-31 |url-status=dead}}

|archive-url=https://web.archive.org/web/20111016054843/http://echo.jpl.nasa.gov/~lance/scoc/scoc.html |url-status=dead |archive-date=October 16, 2011 |access-date=2012-07-23}}

|access-date=2012-06-21}}

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

apollo-asteroids discoveries-by-eugene-merle-shoemaker discoveries-by-carolyn-s.-shoemaker named-minor-planets potentially-hazardous-asteroids astronomical-objects-discovered-in-1994

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