| Discovery[1] | |
|---|---|
| Discovered by | Pan-STARRS (F51) |
| Discovery date | 27 July 2014 |
| Designations | |
| 2014 OO6 | |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 154 days |
| Aphelion | 3.6991 AU (553.38 Gm) (Q) |
| Perihelion | 0.70742 AU (105.829 Gm) (q) |
| 2.2032 AU (329.59 Gm) (a) | |
| Eccentricity | 0.67892 (e) |
| 3.27 yr (1194.5 d) | |
| 140.83° (M) | |
| 0° 18m 4.968s / day (n) | |
| Inclination | 1.3817° (i) |
| 111.17° (Ω) | |
| 287.34° (ω) | |
| Earth MOID | 0.000161353 AU (24,138.1 km) |
| Physical characteristics | |
| Dimensions | |
| 23.1[2] | |
2014 OO6 (also written2014 OO6) is anApollonear-Earth asteroid discovered in 2014 and was the most dangerous one discovered in 2014 that remained on theSentry 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 ofimpacting Earth on 11 January 2051.[3] However, thenominal best-fit orbit shows that2014 OO6 will be 1.5 AU (220,000,000 km; 140,000,000 mi) from Earth on 11 January 2051.[5]
It was discovered on 27 July 2014 byPan-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 anobservation arc of 24 days with anuncertainty parameter of 7.[2]2014 OO6 was recovered byCerro 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 anabsolute magnitude of 23.1,[2] the asteroid is about 60–140 meters in diameter.[4]
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