Discovered by CINEOS Discovery date 3 September 2002 Alternative names 2002 RQ25 Discovered 3 September 2002 Asteroid group Apollo asteroid | Discovery site Campo Imperatore Obs. MPC designation (416151) 2002 RQ25 Minor planet category Apollo · NEO Absolute magnitude 20.6 | |
Discoverer Campo Imperatore Near-Earth Object Survey People also search for (280244) 2002 WP11, 78124 Cicalò | ||
(416151) 2002 RQ25 is a carbonaceous asteroid of the Apollo group, classified as near-Earth object, approximately 0.2 kilometers in diameter. It was discovered on 3 September 2002, by the Campo Imperatore Near-Earth Object Survey (CINEOS) at the Italian Campo Imperatore Observatory, located in the Abruzzo region, east of Rome.
The C-type asteroid is also classified as a C/X-type body according to the survey carried out by NASA's Spitzer Space Telescope. It orbits the Sun at a distance of 0.8–1.5 AU once every 14 months (428 days). Its orbit has an eccentricity of 0.31 and an inclination of 5° with respect to the ecliptic.The asteroid's minimum orbit intersection distance with Earth is 0.0503 AU (7,520,000 km), which is slightly above the threshold limit of 0.05 AU (or about 19.5 lunar distances) to make it a potentially hazardous object.
A rotational light-curve was obtained for this asteroid from photometric observations made by American astronomer Brian Warner at the U.S. Palmer Divide Observatory, Colorado, in February 2015. The ambiguous light-curve rendered a rotation period of 7001121910000000000♠12.191±0.005 hours with a brightness variation of 0.72 in magnitude (U=2+), while a second solution gave 6.096 hours (or half of the first period) with an amplitude of 0.43.
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates diameter of 225 meters, based on an absolute magnitude of 20.6.