2018 CL

2018 CL
Discovery [1][2]
Discovered by Zwicky Transient Facility
Discovery site Palomar Obs.
Discovery date 5 February 2018
Designations
MPC designation 2018 CL
NEO · Aten [1][3]
Orbital characteristics [3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 6
Observation arc 2 days
Aphelion 1.0606 AU
Perihelion 0.6484 AU
0.8545 AU
Eccentricity 0.2412
0.79 yr (289 days)
294.91°
1° 14m 52.08s / day
Inclination 11.847°
136.30°
141.70°
Earth MOID 0.0046 AU (1.8 LD)
Physical characteristics
Mean diameter
 50 m (160 ft)[2]
25.5–15 (at closest approach)[2]
25.525[3]

    2018 CL is a micro-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.[2][4]

    Description

    The Zwicky Transient Facility is a wide-field sky survey using a new camera attached to the Samuel Oschin Telescope at the Palomar Observatory. The Zwicky Transient Facility is designed to detect transient objects that rapidly change in brightness, for example supernova, gamma ray bursts, and collision between two neutron stars, and moving objects like comets and asteroids. The new camera is made up of 16 CCDs of 6000×6000 pixels each, enabling each exposure to cover an area of 47 square degrees. The Zwicky Transient Facility is designed to image the entire northern sky in three nights and scan the plane of the Milky Way twice each night to a limiting magnitude of 20.5. First light was recorded of an area in the constellation Orion on November 1, 2017.[5][6][7]

    References

    1. 1 2 "2018 CL". Minor Planet Center. Retrieved 15 February 2018.
    2. 1 2 3 4 Ye, Quan-Zhi (February 2018). "First Discovery of a Small Near Earth Asteroid with ZTF (2018 CL)". Astronomer's Telegram (11274). Bibcode:2018ATel11274....1Y. Retrieved 22 February 2018.
    3. 1 2 3 "JPL Small-Body Database Browser: (2018 CL)" (2018-02-07 last obs.). Jet Propulsion Laboratory. Retrieved 15 February 2018.
    4. ↑ Kulkarni, S.R.; et al. (7 February 2018). "The Zwicky Transient Facility (ZTF) begins - ATel #11266". Astronomer's Telegram. Retrieved 8 February 2018.
    5. ↑ Clery, Daniel. "New California telescope aims to catch quickly moving celestial events". Science. Retrieved 8 February 2018.
    6. ↑ Staff. "The Zwicky Transient Facility". Palomar Observatory. Retrieved 8 February 2018.
    7. ↑ Boyle, Alan. "Super-wide-angle Zwicky Transient Facility celebrates 'first light' with help from UW". GeekWire. Retrieved 8 February 2018.

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