2014 AF5

{{Short description|Near-Earth asteroid}} {{DISPLAYTITLE:2014 AF<sub>5</sub>}} {{Use dmy dates|date=February 2018}} {{Infobox planet | minorplanet = yes | background = #FFC2E0 | name = {{mp|2014 AF|5}} | discovery_ref = <ref name="MPEC2014-A19"/> | discoverer = [[Catalina Sky Survey]] ([[List of observatory codes#700–799|703]]) | discovered = 2 January 2014 | mpc_name = {{mp|2014 AF|5}} | mp_category = {{Hlist | [[List of Apollo asteroids|Apollo]] | [[Near-Earth object|NEO]]<ref name="jpldata"/> }} | orbit_ref = <ref name="jpldata"/> | epoch = 13 January 2016 ([[Julian day|JD]] 2457400.5) | aphelion = {{Convert|2.3810|AU|Gm|abbr=on|lk=on}} (Q) | perihelion = {{Convert|0.75353|AU|Gm|abbr=on}} (q) | semimajor = {{Convert|1.5672|AU|Gm|abbr=on}} (a) | eccentricity = 0.51920 (e) | period = 1.96 [[Julian year (astronomy)|yr]] (716.64 [[Julian year (astronomy)|d]]) | inclination = 6.4141° (i) | asc_node = 100.66° (Ω) | mean_anomaly = 35.862[[Degree (angle)|°]] (M) | arg_peri = 288.71° (ω) | dimensions = {{Ubl | ~{{convert|7|m|sp=us}} | 5–10 meters }} | mass = {{Val|5e5|u=kg}} (assumed) | magnitude = | abs_magnitude = 28.8<ref name="jpldata"/> | mean_motion = {{Deg2DMS|0.50234|sup=ms}} / day (n) | uncertainty = 7 | moid = {{Convert|0.000570632|AU|km|abbr=on}} | jupiter_moid = {{Convert|3.08041|AU|Gm|abbr=on}} }} '''{{mp|2014 AF|5}}''' (also written [[Astronomical naming conventions#Minor planets|2014 AF5]]) is an [[List of Apollo asteroids|Apollo]] [[near-Earth asteroid]] roughly 5–10 meters in diameter that passed less than 1 [[Lunar distance (astronomy)|lunar distance]] from Earth on 1 January 2014.<ref name=jpl-close/>

== Description == From mid November 2013 until 1 January 2014 15:00 [[Universal Time|UT]] the small dim asteroid had an [[Elongation (astronomy)|elongation]] less than 45 degrees from the Sun with an undetectable [[apparent magnitude]] of around 30.<ref name="NEODyS2014"/> While less than 18 degrees from the Sun any dim asteroid can be lost in [[astronomical twilight]]. On 1 January 2014 10:00 UT the asteroid passed {{convert|0.00062|AU|km mi|abbr=on|lk=on}} from the Moon and at 16:13 UT passed {{convert|0.00064|AU|km mi|abbr=on|lk=off}} from Earth.<ref name=jpl-close/> The asteroid was then discovered on 2 January 2014 by the [[Catalina Sky Survey]] at an apparent magnitude of 18.9 using a {{convert|0.68|m|in|adj=on|sp=us}} [[Schmidt–Cassegrain telescope]].<ref name="MPEC2014-A19"/> By 3 January 2014 the asteroid was becoming dimmer than apparent magnitude 20.<ref name="NEODyS2014"/>

== See also == *[[List of asteroid close approaches to Earth in 2014]]

== References == <references>

<ref name=jpldata>{{cite web |type=last observation: 2012-10-09; [[Observation arc|arc]]: 1 day |title=JPL Small-Body Database Browser: (2014 AF5) |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014AF5 |publisher=[[Jet Propulsion Laboratory]] |accessdate=4 April 2016}}</ref>

<ref name="MPEC2014-A19">{{cite web |title=MPEC 2014-A19 : 2014 AF5 |publisher=[[IAU Minor Planet Center]] |date=2014-01-04 |url=http://www.minorplanetcenter.net/mpec/K14/K14A19.html |accessdate=2014-01-25|archiveurl=https://web.archive.org/web/20140201230708/http://www.minorplanetcenter.net/mpec/K14/K14A19.html |archivedate=2014-02-01 }} (K14A05F)</ref>

<ref name=jpl-close>{{cite web |type=last observation: 2012-10-09; [[Observation arc|arc]]: 1 day |title=JPL Close-Approach Data: (2014 AF5) |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014AF5;cad=1#cad |accessdate=2014-01-25}}</ref>

<ref name="NEODyS2014">{{cite web |title=2014AF5 Ephemerides for 15 November 2013 through 10 January 2014 |publisher=[[NEODyS]] (Near Earth Objects{{Snd}} Dynamic Site) |url=http://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2014AF5&oc=500&y0=2013&m0=11&d0=15&h0=0&mi0=0&y1=2014&m1=1&d1=10&h1=0&mi1=0&ti=1.0&tiu=days |accessdate=2014-01-25 |archiveurl=https://web.archive.org/web/20140203104105/http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.1&n=2014AF5&oc=500&y0=2013&m0=11&d0=15&h0=0&mi0=0&y1=2014&m1=1&d1=10&h1=0&mi1=0&ti=1.0&tiu=days |archivedate=2014-02-03 |url-status=live}}</ref>

</references>

== External links == * {{NeoDys|2014+AF5}} * {{ESA-SSA|2014AF5}} * {{JPL small body|id=3655741}}

{{2014 in space}} {{Planetary defense}}  {{Small Solar System bodies}}

{{DEFAULTSORT:2014 AF5}} [[Category:Apollo asteroids|#]] [[Category:Minor planet object articles (unnumbered)]] [[Category:Potentially hazardous asteroids|#]] [[Category:Discoveries by the Catalina Sky Survey]] [[Category:Near-Earth objects in 2014|20140101]] [[Category:Astronomical objects discovered in 2014|20140102]]