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{{mp|2014 OO|6}} was recovered by Cerro Paranal Observatory on 22 and 24 December 2014 at magnitude 25 which extended the observation arc from 24 days to 154 days.
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| mp_category = [[List of Apollo asteroids|Apollo]] [[Near-Earth object|NEO]]<ref name="jpldata"/>
| mp_category = [[List of Apollo asteroids|Apollo]] [[Near-Earth object|NEO]]<ref name="jpldata"/>
| orbit_ref = <ref name="jpldata"/>
| orbit_ref = <ref name="jpldata"/>
| epoch = 2014-Dec-09<br>([[Uncertainty Parameter U|Uncertainty]]=7)<ref name=jpldata/>
| epoch = 2014-Dec-09<br>([[Uncertainty Parameter U|Uncertainty]]=4)<ref name=jpldata/>
| aphelion = 3.7 [[Astronomical unit|AU]] (Q)
| aphelion = 3.7 [[Astronomical unit|AU]] (Q)
| perihelion = 0.709 AU (q)
| perihelion = 0.7085 AU (q)
| semimajor = 2.2 AU (a)
| semimajor = 2.204 AU (a)
| eccentricity = 0.678
| eccentricity = 0.6785
| period = 3.27 [[Julian year (astronomy)|yr]]
| period = 3.27 [[Julian year (astronomy)|yr]]
| inclination = 1.38 [[degree (angle)|°]]
| inclination = 1.3817 [[degree (angle)|°]]
| asc_node = 111°
| asc_node = 111.2°
| mean_anomaly = 111° (M)
| mean_anomaly = 20.29° (M)
| arg_peri = 287°
| arg_peri = 287.4°
| physical_characteristics = yes
| physical_characteristics = yes
| dimensions = ~75 meters<ref name=summary/><br>60–140 meters<ref name="h"/>
| dimensions = ~75 meters<ref name=summary/><br>60–140 meters<ref name="h"/>
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}}
}}


'''{{mp|2014 OO|6}}''' (also written [[Astronomical naming conventions#Minor planets|2014 OO6]]) is the most dangerous [[near-Earth asteroid]] discovered in 2014 that remains on the [[Sentry Risk Table]].<ref name="risk-table"/> The asteroid is estimated to be roughly {{convert|75|m|ft|sp=us}} in diameter and has a 1 in 83,000 chance of [[Impact event|impacting]] Earth on 11 January 2051.<ref name=summary/> However, the [[Curve fitting|nominal]] best-fit orbit shows that {{mp|2014 OO|6}} will be {{convert|1.5|AU|km mi|abbr=on|lk=on}} from Earth on 11 January 2051.<ref name="NEODyS2051"/>
'''{{mp|2014 OO|6}}''' (also written [[Astronomical naming conventions#Minor planets|2014 OO6]]) was the most dangerous [[near-Earth asteroid]] discovered in 2014 that remained on the [[Sentry Risk Table]] as of early December 2014.<ref name="summary2014-12"/> The asteroid is estimated to be roughly {{convert|75|m|ft|sp=us}} in diameter and had a 1 in 83,000 chance of [[Impact event|impacting]] Earth on 11 January 2051.<ref name=summary2014-12/> However, the [[Curve fitting|nominal]] best-fit orbit shows that {{mp|2014 OO|6}} will be {{convert|1.5|AU|km mi|abbr=on|lk=on}} from Earth on 11 January 2051.<ref name="NEODyS2051"/>


It was discovered on 27 July 2014 by [[Pan-STARRS]] at an apparent magnitude of 20 using a {{convert|1.8|m|in|adj=on|sp=us}} [[Ritchey–Chrétien telescope]].<ref name="MPEC2014-O56"/> On 18 August 2014 the asteroid passed {{convert|0.0297|AU|km mi|abbr=on|lk=on}} from Earth.<ref name=jpl-close/> The asteroid has an [[observation arc]] of 24 days with an [[Uncertainty Parameter U|uncertainty parameter]] of 7.<ref name=jpldata/> The asteroid was last observed on 18 August 2014.<ref name=jpldata/> By 23 August 2014, the asteroid had dimmed to below magnitude 25.<ref name="NEODyS2014"/>
It was discovered on 27 July 2014 by [[Pan-STARRS]] at an apparent magnitude of 20 using a {{convert|1.8|m|in|adj=on|sp=us}} [[Ritchey–Chrétien telescope]].<ref name="MPEC2014-O56"/> On 18 August 2014 the asteroid passed {{convert|0.02975|AU|km mi|abbr=on|lk=on}} from Earth.<ref name=jpl-close/> By 23 August 2014, the asteroid had dimmed to below magnitude 25.<ref name="NEODyS2014"/> As of early December 2014, the asteroid had an [[observation arc]] of 24 days with an [[Uncertainty Parameter U|uncertainty parameter]] of 7.<ref name=jpldata/> {{mp|2014 OO|6}} was recovered by [[Cerro Paranal Observatory]] on 22 and 24 December 2014 at magnitude 25 which extended the observation arc from 24 days to 154 days. The orbital refinement removed the impact risk for 11 January 2051.<ref name=summary/>


With an [[Absolute magnitude#Solar System bodies (H)|absolute magnitude]] of 23.1,<ref name=jpldata/> the asteroid is about 60–140&nbsp;meters in diameter.<ref name="h"/>
With an [[Absolute magnitude#Solar System bodies (H)|absolute magnitude]] of 23.1,<ref name=jpldata/> the asteroid is about 60–140&nbsp;meters in diameter.<ref name="h"/>
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|accessdate=12 December 2014}}</ref>
|accessdate=12 December 2014}}</ref>


<ref name="risk-table">{{cite web
<ref name=summary2014-12>{{cite web
|date=13 December 2014
|title=Sentry Risk Table
|title=Earth Impact Risk Summary: 2014 OO6
|publisher=NASA/JPL Near-Earth Object Program Office
|publisher=Wayback Machine: NASA/JPL Near-Earth Object Program Office
|url=http://neo.jpl.nasa.gov/risk/
|url=https://web.archive.org/web/20141213031750/http://neo.jpl.nasa.gov/risk/2014oo6.html
|accessdate=12 December 2014}} ([[Palermo Technical Impact Hazard Scale|PS]]=–3.58)</ref>
|accessdate=12 December 2014}}</ref>


<ref name=summary>{{cite web
<ref name=summary>{{cite web

Revision as of 06:46, 29 December 2014

2014 OO6
Discovery[1]
Discovered byPan-STARRS (F51)
Discovery date27 July 2014
Designations
Designation
2014 OO6
Apollo NEO[2]
Orbital characteristics[2]
Epoch 2014-Dec-09
(Uncertainty=4)[2]
Aphelion3.7 AU (Q)
Perihelion0.7085 AU (q)
2.204 AU (a)
Eccentricity0.6785
3.27 yr
20.29° (M)
Inclination1.3817 °
111.2°
287.4°
Physical characteristics
Dimensions~75 meters[3]
60–140 meters[4]
23.1[2]

2014 OO6 (also written 2014 OO6) was the most dangerous near-Earth asteroid discovered in 2014 that remained on the Sentry Risk Table as of early December 2014.[5] The asteroid is estimated to be roughly 75 meters (246 ft) in diameter and had a 1 in 83,000 chance of impacting Earth on 11 January 2051.[5] However, the nominal best-fit orbit shows that 2014 OO6 will be 1.5 AU (220,000,000 km; 140,000,000 mi) from Earth on 11 January 2051.[6]

It was discovered on 27 July 2014 by Pan-STARRS at an apparent magnitude of 20 using a 1.8-meter (71 in) Ritchey–Chrétien telescope.[1] On 18 August 2014 the asteroid passed 0.02975 AU (4,451,000 km; 2,765,000 mi) from Earth.[7] By 23 August 2014, the asteroid had dimmed to below magnitude 25.[8] As of early December 2014, the asteroid had an observation arc of 24 days with an uncertainty parameter of 7.[2] 2014 OO6 was recovered by Cerro Paranal Observatory on 22 and 24 December 2014 at magnitude 25 which extended the observation arc from 24 days to 154 days. The orbital refinement removed the impact risk for 11 January 2051.[3]

With an absolute magnitude of 23.1,[2] the asteroid is about 60–140 meters in diameter.[4]

References

  1. ^ a b "MPEC 2014-O56 : 2014 OO6". IAU Minor Planet Center. 28 July 2014. Retrieved 12 December 2014. (K14O06O)
  2. ^ a b c d e f "JPL Small-Body Database Browser: (2014 OO6)" (last observation: 18 August 2014; arc: 24 days). Jet Propulsion Laboratory. Retrieved 12 December 2014.
  3. ^ a b "Earth Impact Risk Summary: 2014 OO6". NASA/JPL Near-Earth Object Program Office. Retrieved 12 December 2014.
  4. ^ a b "Absolute Magnitude (H)". NASA/JPL. Retrieved 12 December 2014.
  5. ^ a b "Earth Impact Risk Summary: 2014 OO6". Wayback Machine: NASA/JPL Near-Earth Object Program Office. 13 December 2014. Retrieved 12 December 2014.
  6. ^ "2014OO6 Ephemerides for 1 January 2051 through 18 January 2051". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 12 December 2014.
  7. ^ "JPL Close-Approach Data: (2014 OO6)" (last observation: 18 August 2014; arc: 24 days). Retrieved 12 December 2014.
  8. ^ "2014OO6 Ephemerides for 11 July 2014 through 28 August 2014". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 12 December 2014.
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