![]() Radar images of 2014 SR339 taken by the Arecibo Observatory on 9 February 2018 | |
Discovery[1] | |
---|---|
Discovered by | WISE |
Discovery site | Earth orbit |
Discovery date | 30 September 2014 |
Designations | |
(505657) 2014 SR339 | |
2014 SR339 | |
Apollo · NEO · PHA[1][2] | |
Orbital characteristics[2] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 3.41 yr (1,245 d) |
Aphelion | 1.6948 AU |
Perihelion | 0.9046 AU |
1.2997 AU | |
Eccentricity | 0.3040 |
1.48 yr (541 d) | |
60.524° | |
0° 39m 54.72s / day | |
Inclination | 29.790° |
138.78° | |
299.60° | |
Earth MOID | 0.0354 AU (13.8 LD) |
Physical characteristics | |
Dimensions | (>1.5 km × ? km)[3] |
0.971±0.367 km[4] | |
8–9 h[5] 8.729 h[3][a] | |
0.068±0.074[4] | |
C(assumed on albeo) | |
18.6[2] | |
(505657) 2014 SR339, provisional designation 2014 SR339, is a dark and elongated asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 970 meters (3,200 feet) in diameter. It was discovered on 30 September 2014, by NASA's Wide-field Infrared Survey Explorer telescope (WISE) in Earth's orbit.[1] Closely observed at Goldstone and Arecibo in February 2018, it has a rotation period of 8.7 hours.[5]
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