2014 OO6

2014 OO6
Discovery[1]
Discovered by Pan-STARRS (F51)
Discovery date 27 July 2014
Designations
MPC designation 2014 OO6
Apollo NEO[2]
Orbital characteristics[2]
Epoch 2014-Dec-09
(Uncertainty=4)[2]
Aphelion 3.7 AU (Q)
Perihelion 0.7085 AU (q)
2.204 AU (a)
Eccentricity 0.6785
3.27 yr
20.29° (M)
Inclination 1.3817 °
111.2°
287.4°
Physical characteristics
Dimensions ~75 meters[3]
60–140 meters[4]
23.1[2]

    2014 OO6 (also written 2014 OO6) is a 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.[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 23 and 26 December 2014 at magnitude 25 which extended the observation arc from 24 days to 154 days.[9] 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. ↑ 1.0 1.1 "MPEC 2014-O56 : 2014 OO6". IAU Minor Planet Center. 28 July 2014. Retrieved 12 December 2014. (K14O06O)
    2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "JPL Small-Body Database Browser: (2014 OO6)" (last observation: 18 August 2014; arc: 24 days). Jet Propulsion Laboratory. Retrieved 12 December 2014.
    3. ↑ 3.0 3.1 "Earth Impact Risk Summary: 2014 OO6". NASA/JPL Near-Earth Object Program Office. Retrieved 12 December 2014.
    4. ↑ 4.0 4.1 "Absolute Magnitude (H)". NASA/JPL. Retrieved 12 December 2014.
    5. ↑ 5.0 5.1 "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.
    9. ↑ "2014 OO6 Orbit". IAU Minor Planet Center. Retrieved 2014-12-29.