| 词条 | 2010 AA15 |
| 释义 |
| minorplanet = yes | name = {{mp|2010 AA|15}} | background = #D6D6D6 | image = Asteroid P-2010 A2.jpg | image_size = 240 | caption = {{mp|2010 AA|15}} likely did not interact with main-belt comet P/2010 A2 | discovery_ref = [2] | discovered = | discoverer = Mount Lemmon Srvy. {{small|(first observerd)}} | discovery_site = | mpc_name = {{mp|2010 AA|15}} | alt_names = | pronounced = | named_after = | mp_category = main-belt | orbit_ref = | epoch = 16 February 2017 (JD 2457800.5) | uncertainty = 6 | observation_arc = (15 days) | aphelion = 2.6329 AU | perihelion = 1.9933 AU | semimajor = 2.3131 AU | eccentricity = 0.1383 | period = 3.52 yr (1,285 days) | mean_anomaly = 6.7537° | mean_motion = {{Deg2DMS|0.2802|sup=ms}} / day | inclination = 4.6880° | asc_node = 324.05° | arg_peri = 142.78° | dimensions = 290–983 m[4] | rotation = | albedo = | spectral_type = | magnitude = | abs_magnitude = {{val|19.254|0.3468}} }}{{mp|2010 AA|15}} is a sub-kilometer asteroid from the inner asteroid belt, that has a similar but different orbit than main-belt comet P/2010 A2.[6] DescriptionUsing the best-fit short-arc orbital data, it appears as if the closest that comet {{mp|P/2010 A2}} came to asteroid {{mp|2010 AA|15}} is around 0.0155 AU ({{convert|2300000|km|abbr=off|sigfig=3}}) on 22 November 2009.[6] {{mp|2010 AA|15}} was discovered on 7 January 2010. Since it has only been observed over a fifteen-day arc of its 3.5 year orbit, details of the exact orbit still need further refining for easy recovery of this object in the distant future. The asteroid appears to have come to perihelion (closest approach to the Sun) on around 10 January 2010, only a couple days after its discovery.With an absolute magnitude (H) of 19.2, {{mp|2010 AA|15}} is likely about {{convert|600|m|ft}} in diameter.[4] References1. ^1 {{cite web |title = 2010 AA15 |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=2010+AA15 |accessdate = 28 April 2017}} [1][2][3]2. ^1 2 {{cite web |date=2010-02-03 |title=Re: {MPML} P/2010 A2, 2010 AA15 results of a collision? (probably no) |publisher=Yahoo! Groups (Minor Planet Mailing List) |author=Ireneusz Wlodarczyk |url=http://tech.groups.yahoo.com/group/mpml/message/23003 |accessdate=2010-02-03}} 3. ^1 2 {{cite web |title = Asteroid Size Estimator |publisher = CNEOS NASA/JPL |url = https://cneos.jpl.nasa.gov/tools/ast_size_est.html |accessdate = 3 February 2018}} }} External links
3 : Main-belt asteroids|Minor planet object articles (unnumbered)|Astronomical objects discovered in 2010 |
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