| Discovery | |
|---|---|
| Discovered by | Zwicky Transient Facility |
| Discovery site | Palomar Obs. |
| Discovery date | 5 February 2018 |
| Designations | |
| MPC designation | 2018 CL |
| Minor planet category | NEO · Aten |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 6 | |
| Observation arc | 2 days |
| Aphelion | 1.0606 AU |
| Perihelion | 0.6484 AU |
| Semi-major axis | 0.8545 AU |
| Eccentricity | 0.2412 |
| Orbital period (sidereal) | 0.79 yr (289 days) |
| Mean anomaly | 294.91° |
| Mean motion | 1° 14 52.08 / day |
| Inclination | 11.847° |
| Longitude of ascending node | 136.30° |
| Argument of perihelion | 141.70° |
| Earth MOID | 0.0046 AU (1.8 LD) |
| Physical characteristics | |
| Mean diameter | 50 m (160 ft) |
| Apparent magnitude | 25.5–15 (at closest approach) |
| Absolute magnitude (H) | 25.525 |
2018 CL is a small asteroid and a near-Earth object of the Aten group, approximately 50 metres (160 feet) in diameter. It was the first confirmed finding, detected on 5 February 2018, announced on 8 February 2018, of the Zwicky Transient Facility project, located at Palomar Observatory, California, in the United States.
References
- ^ "2018 CL". Minor Planet Center. Retrieved 15 February 2018.
- ^ Ye, Quan-Zhi (February 2018). "First Discovery of a Small Near Earth Asteroid with ZTF (2018 CL)". The Astronomer's Telegram. 11274 (11274): 1. Bibcode:2018ATel11274....1Y. Retrieved 22 February 2018.
- ^ "JPL Small-Body Database Browser: (2018 CL)" (2018-02-07 last obs.). Jet Propulsion Laboratory. Retrieved 15 February 2018.
- Kulkarni, S.R.; et al. (7 February 2018). "The Zwicky Transient Facility (ZTF) begins - ATel #11266". The Astronomer's Telegram. Retrieved 8 February 2018.
External links
- NASA Planetary Data System: 2018 CL
- 2018 CL at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2018 CL at ESA–space situational awareness
- 2018 CL at the JPL Small-Body Database
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