2018 CC
2018 CC is a micro-asteroid, classified as a near-Earth object of the Apollo group, approximately 20 meters (70 ft) in diameter. Its official first observation was made by the Catalina Sky Survey at Mount Lemmon Observatory, Arizona, United States, on 4 February 2018. Two days later, the asteroid crossed the orbit of the Moon and made a very close approach to Earth.
Orbit of 2018 CC | |
| Discovery | |
|---|---|
| Discovered by | Catalina Sky Srvy. |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | 4 February 2018 (first observed only) |
| Designations | |
MPC designation | 2018 CC |
Minor planet category | NEO · Apollo |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 6 · 5 | |
| Observation arc | 17 days |
| Aphelion | 1.7323 AU |
| Perihelion | 0.8358 AU |
Semi-major axis | 1.2841 AU |
| Eccentricity | 0.3491 |
Orbital period (sidereal) | 1.46 yr (531 days) |
Mean anomaly | 356.51° |
Mean motion | 0° 40m 38.64s / day |
| Inclination | 8.4577° |
Longitude of ascending node | 317.50° |
| 245.91° | |
| Earth MOID | 0.0002 AU (0.078 LD) |
| Physical characteristics | |
Mean diameter | 15 m (est. at 0.20) 40 m (est. at 0.057) |
| 26.541 | |
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