2018 CF2
2018 CF2 is a micro-asteroid and near-Earth object of the Apollo group on an eccentric orbit with has an estimated 4–15 meters (10–50 ft). It was first observed on 7 February 2018, by astronomers of the Mount Lemmon Survey at Mount Lemmon Observatory, Arizona, United States. The discovery occurred the day after its sub-lunar passage as it approached the Earth from a sunward direction, and this flyby altered the asteroid's orbit slightly.
The orbit before and after its 2018-flyby | |
| Discovery | |
|---|---|
| Discovered by | MLS |
| Discovery site | Mount Lemmon Obs. |
| Discovery date | 7 February 2018 |
| Designations | |
MPC designation | 2018 CF2 |
Minor planet category | NEO · Apollo |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 7 | |
| Observation arc | 2 days |
| Aphelion | 2.7662 AU |
| Perihelion | 0.9089 AU |
Semi-major axis | 1.8375 AU |
| Eccentricity | 0.5054 |
Orbital period (sidereal) | 2.49 yr (910 days) |
Mean anomaly | 29.432° |
Mean motion | 0° 23m 44.52s / day |
| Inclination | 16.284° |
Longitude of ascending node | 137.68° |
| 320.19° | |
| Earth MOID | 0.00077 AU (0.30 LD) |
| Physical characteristics | |
Mean diameter | 4–15 m 7 m (est. at 0.20) 14 m (est. at 0.057) |
| 28.036 | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.