1999 AO10

Sub-kilometer sized asteroid February 2018 yes 1999 AO 10 #FFC2E0 LINEAR Lincoln Laboratory's ETS 13 January 1999(first observation only) 1999 AO 10 NEOAten 21 November 2025 (JD 2461000.5) 0 9927 days 1.0133 AU 0.8109477 AU 0.9121214 AU 0.1109213 0.87 yr (318 days) 88.563° 1.1314 ms / day 2.62399° 313.05° 7.9568° 0.0213 AU8.3 LD 0.05 km (est. at 0.20 24.27 1999 AO 10 is a sub-kilometer sized asteroid, classified as near-Earth object of the Aten group, approximately 50 meters in diameter. It was first observed on 13 January 1999, by the LINEAR project at Lincoln Laboratory's ETS near Socorro, New Mexico, United States. The asteroid has been the target of a proposed mission. Orbit 1999 AO 10 orbits the Sun at a distance of 0.8–1.0 AU once every 10 months (318 days). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic. The initial orbital elements were determined based on 16 observations made between January 13–15, 1999. The asteroid was recovered on 14 Jan 2026 by Steward Observatory and Mt. Lemmon Station.MPEC 2026-B61 : 1999 AO10 https://www.minorplanetcenter.net/mpec/K26/K26B61.html 2026-02-20 www.minorplanetcenter.net It has been observed since then till 19 March by many observatories in the Americas, Africa, Europe, and Asia. The orbital elements are now well established with an uncertainty code of 0. The asteroid has an Earth minimum orbital intersection distance of 0.0213 AU km on 3, which translates into 8.3 lunar distances. Crewed mission NASA has proposed a crewed mission to the object during 2025 or later. 1999 AO 10 is one of a handful of objects within the acceptable range for the mission and is also one of the largest objects that meets the qualifications. In this proposal, a pair of docked Orion spacecraft would spend 14 days at the object, for a total mission time of 155 days. The astronauts would return samples and help test spacefaring capabilities for a future Mars mission. The crewed mission would be preceded by an unmanned probe to be sent in 2019 at the earliest.http://www.nasaspaceflight.com/2010/01/nasas-flexible-path-2025-human-mission-visit-asteroid/ NASA's Flexible Path evaluation of 2025 human mission to visit an asteroid 10 January 2010 References 1999-02-15 last obs. JPL Small-Body Database Browser: (1999 AO10) http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3017309 Jet Propulsion Laboratory 1 August 2017 1999 AO10 Minor Planet Center http://www.minorplanetcenter.net/db_search/show_object?object_id=1999+AO10 1 August 2017 6 M. Tichy P. Sicoli A. Testa M. Blythe F. Shelly M. Bezpalko J. Stuart H. Viggh R. Sayer G. V. Williams January 1999 1999 AO10 http://minorplanetcenter.org/mpec/J99/J99B04.html Minor Planet Electronic Circ. 1999-B04 1999-B04 (1999). (MPEC Homepage) 1999MPEC....B...04T 1 August 2017 Asteroid Size Estimator CNEOS/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 1 August 2017 External links List of Atens, Minor Planet Center 1999+AO10 1999AO10 # Category:Minor planet object articles (unnumbered) * 19990113