Astronomy:2014 OO6

From HandWiki
2014 OO6
Discovery[1]
Discovered byPan-STARRS (F51)
Discovery date27 July 2014
Designations
2014 OO6
Minor planet category
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc154 days
|{{{apsis}}}|helion}}3.6991 astronomical unit|AU (553.38 Gm) (Q)
|{{{apsis}}}|helion}}0.70742 AU (105.829 Gm) (q)
2.2032 AU (329.59 Gm) (a)
Eccentricity0.67892 (e)
Orbital period3.27 yr (1194.5 d)
Mean anomaly140.83° (M)
Mean motion0° 18m 4.968s / day (n)
Inclination1.3817° (i)
Longitude of ascending node111.17° (Ω)
287.34° (ω)
Earth MOID0.000161353 AU (24,138.1 km)
Physical characteristics
Dimensions
  • ~75 meters[3]
  • 60–140 meters[4]
Absolute magnitude (H)23.1[2]


2014 OO6 (also written 2014 OO6) is an Apollo near-Earth asteroid discovered in 2014 and was the most dangerous one discovered in 2014 that remained on the Sentry Risk Table as of early December 2014.[3] 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.[3] However, the nominal best-fit orbit shows that 2014 OO6 will be 1.5 astronomical unit|AU (220,000,000 km; 140,000,000 mi) from Earth on 11 January 2051.[5]

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 astronomical unit|AU (4,451,000 km; 2,765,000 mi) from Earth.[6] By 23 August 2014, the asteroid had dimmed to below magnitude 25.[7] 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 23 and 26 December 2014 at magnitude 25 which extended the observation arc from 24 days to 154 days.[8] 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]

See also

  • List of asteroid close approaches to Earth in 2014

References

  1. ↑ 1.0 1.1 "MPEC 2014-O56 : 2014 OO6". IAU Minor Planet Center. 28 July 2014. http://www.minorplanetcenter.org/mpec/K14/K14O56.html. Retrieved 12 December 2014.  (K14O06O)
  2. ↑ 2.0 2.1 2.2 2.3 2.4 "JPL Small-Body Database Browser: (2014 OO6)". Jet Propulsion Laboratory. Archived from the original on 12 December 2014. https://archive.today/20141212204056/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014OO6. Retrieved 4 April 2016. 
  3. ↑ 3.0 3.1 3.2 3.3 "Earth Impact Risk Summary: 2014 OO6". Wayback Machine: NASA/JPL Near-Earth Object Program Office. 13 December 2014. Archived from the original on December 13, 2014. https://web.archive.org/web/20141213031750/http://neo.jpl.nasa.gov/risk/2014oo6.html. Retrieved 12 December 2014. 
  4. ↑ 4.0 4.1 "Absolute Magnitude (H)". NASA/JPL. http://neo.jpl.nasa.gov/glossary/h.html. Retrieved 12 December 2014. 
  5. ↑ "2014OO6 Ephemerides for 1 January 2051 through 18 January 2051". NEODyS (Near Earth Objects – Dynamic Site). Archived from the original on 12 December 2014. https://archive.today/20141212204100/http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.1&n=2014OO6&oc=500&y0=2051&m0=1&d0=1&h0=0&mi0=0&y1=2051&m1=1&d1=18&h1=0&mi1=0&ti=1.0&tiu=days. Retrieved 12 December 2014. 
  6. ↑ "JPL Close-Approach Data: (2014 OO6)". http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014OO6;cad=1#cad. Retrieved 12 December 2014. 
  7. ↑ "2014OO6 Ephemerides for 11 July 2014 through 28 August 2014". NEODyS (Near Earth Objects – Dynamic Site). http://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2014OO6&oc=500&y0=2014&m0=7&d0=11&h0=0&mi0=0&y1=2014&m1=8&d1=28&h1=0&mi1=0&ti=1.0&tiu=days. Retrieved 12 December 2014. 
  8. ↑ "2014 OO6 Orbit". IAU Minor Planet Center. http://www.minorplanetcenter.net/db_search/show_object?object_id=2014+OO6. Retrieved 2014-12-29. 

External links



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