2014 OO6

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 AU (220,000,000 km; 140,000,000 mi) from Earth on 11 January 2051.[5]

2014 OO6
Discovery[1]
Discovered byPan-STARRS (F51)
Discovery date27 July 2014
Designations
2014 OO6
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc154 days
Aphelion3.6991 AU (553.38 Gm) (Q)
Perihelion0.70742 AU (105.829 Gm) (q)
2.2032 AU (329.59 Gm) (a)
Eccentricity0.67892 (e)
3.27 yr (1194.5 d)
140.83° (M)
0° 18m 4.968s / day (n)
Inclination1.3817° (i)
111.17° (Ω)
287.34° (ω)
Earth MOID0.000161353 AU (24,138.1 km)
Physical characteristics
Dimensions
  • ~75 meters[3]
  • 60–140 meters[4]
23.1[2]

    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.[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

    References
    1. "MPEC 2014-O56 : 2014 OO6". IAU Minor Planet Center. 28 July 2014. Retrieved 12 December 2014. (K14O06O)
    2. "JPL Small-Body Database Browser: (2014 OO6)" (last observation: 18 August 2014; arc: 24 days). Jet Propulsion Laboratory. Archived from the original on 12 December 2014. Retrieved 4 April 2016.
    3. "Earth Impact Risk Summary: 2014 OO6". Wayback Machine: NASA/JPL Near-Earth Object Program Office. 13 December 2014. Archived from the original on 13 December 2014. Retrieved 12 December 2014.
    4. "Absolute Magnitude (H)". NASA/JPL. 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. Retrieved 12 December 2014.
    6. "JPL Close-Approach Data: (2014 OO6)" (last observation: 18 August 2014; arc: 24 days). Retrieved 12 December 2014.
    7. "2014OO6 Ephemerides for 11 July 2014 through 28 August 2014". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 12 December 2014.
    8. "2014 OO6 Orbit". IAU Minor Planet Center. Retrieved 29 December 2014.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.