Top Qs
Timeline
Chat
Perspective
2011 UB256
Asteroid From Wikipedia, the free encyclopedia
Remove ads
2011 UB256 is a small asteroid and Mars trojan orbiting near the L5 point of Mars (60 degrees behind Mars on its orbit).[2][3][4]
Remove ads
Discovery, orbit and physical properties
2011 UB256 was first observed on 29 October 2011 by the Pan-STARRS 1 telescope system at Haleakala; the Apache Point-Sloan Digital Sky Survey had imaged this object on 31 March 2003 without identifying it as an asteroid.[5] Its orbit is characterized by low eccentricity (0.071), moderate inclination (24.3°) and a semi-major axis of 1.52 AU.[5] Upon discovery, it was classified as Mars-crosser by the Minor Planet Center. Its orbit is well determined as it is currently (January 2021) based on 64 observations with a data-arc span of 6265 days.[1] 2011 UB256 has an absolute magnitude of 19.9 which gives a characteristic diameter of 300 m.[1]
Remove ads
Mars trojan and orbital evolution
Recent calculations indicate that it is a stable L5 Mars trojan.[2] It may not be a member of the so-called Eureka family.
Mars trojan
L4 (leading):
L5 (trailing):
See also
References
External links
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads