| 词条 | 1999 AO10 |
| 释义 |
| minorplanet = yes | name = {{mp|1999 AO|10}} | background = #FFC2E0 | image = | image_size = | caption = | discovery_ref = | discovered = 13 January 1999 | discoverer = LINEAR | discovery_site = {{nowrap|Lincoln Laboratory's ETS}} | mpc_name = {{mp|1999 AO|10}} | alt_names = | pronounced = | named_after = | mp_category = NEO{{·}}Aten | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 6 | observation_arc = 33 days | aphelion = 1.0125 AU | perihelion = 0.8103 AU | semimajor = 0.9114 AU | eccentricity = 0.1109 | period = 0.87 yr (318 days) | mean_anomaly = 293.75° | mean_motion = {{Deg2DMS|1.1327|sup=ms}} / day | inclination = 2.6236° | asc_node = 313.26° | arg_peri = 7.6652° | moid = 0.0220 AU{{·}}8.6 LD | dimensions = 0.05 km {{small|(est. at 0.20}}[4] | rotation = | albedo = | spectral_type = | abs_magnitude = 23.9 }} {{mp|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.[6] The asteroid has been the target of a proposed mission. Orbit{{mp|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.[8]The asteroid has an Earth minimum orbital intersection distance of {{convert |0.0220 |AU |km |abbr=on |sigfig=3}}, which translates into 8.6 lunar distances. Manned missionNASA has proposed a manned mission to the object during 2025 or later. {{mp|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 manned mission would be preceded by an unmanned probe to be sent in 2019 at the earliest.[1] References1. ^http://www.nasaspaceflight.com/2010/01/nasas-flexible-path-2025-human-mission-visit-asteroid/ [2][3][4]2. ^1 {{cite web |title = 1999 AO10 |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1999+AO10 |accessdate = 1 August 2017}} 3. ^1 {{Cite journal |display-authors = 6 |first1 = M. |last1 = Tichy |first2 = P. |last2 = Sicoli |first3 = A. |last3 = Testa |first4 = M. |last4 = Blythe |first5 = F. |last5 = Shelly |first6 = M. |last6 = Bezpalko |first7 = J. |last7 = Stuart |first8 = H. |last8 = Viggh |first9 = R. |last9 = Sayer |first10 = G. V. |last10 = Williams |date = January 1999 |title = 1999 AO10 |url = http://minorplanetcenter.org/mpec/J99/J99B04.html |journal = Minor Planet Electronic Circ. |issue = 1999-B04 (1999). (MPEC Homepage) |bibcode = 1999MPEC....B...04T |access-date= 1 August 2017}} 4. ^1 {{cite web |title = Asteroid Size Estimator |publisher = CNEOS/JPL |url = https://cneos.jpl.nasa.gov/tools/ast_size_est.html |access-date= 1 August 2017}} }} External links
3 : Aten asteroids|Minor planet object articles (unnumbered)|Astronomical objects discovered in 1999 |
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