(523692) 2014 EZ51

(523692) 2014 EZ51
Discovery [1]
Discovered by Pan-STARRS 1
Discovery site Haleakala Obs.
Discovery date 18 April 2010
Designations
MPC designation (523692) 2014 EZ51
TNO [2] · SDO [3][4]
p-DP [5] · distant [1]
Orbital characteristics [2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 3
Observation arc 7.40 yr (2,704 d)
Aphelion 64.418 AU
Perihelion 40.631 AU
52.525 AU
Eccentricity 0.2264
380.68 yr (139,042 d)
267.96°
0° 0m 9.36s / day
Inclination 10.257°
27.522°
329.60°
Physical characteristics
Mean diameter
 615 km[5]
770 km[3]
0.10 (est.)[5]
3.8[1][2]
4.2[5]

    (523692) 2014 EZ51, provisional designation 2014 EZ51, is a trans-Neptunian object and possible dwarf planet in the scattered disc, approximately 700 kilometers (430 miles) in diameter. It was discovered on 18 April 2010, by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii, United States.[1]

    Orbit and classification

    2014 EZ51 orbits the Sun at a distance of 40.6–64.4 AU once every 380 years and 8 months (139,042 days; semi-major axis of 52.53 AU). Its orbit has an eccentricity of 0.23 and an inclination of 10° with respect to the ecliptic.[2] The body's observation arc begins with its official discovery observation at Haleakala in April 2010.[1] According to Michael Brown it is a "highly likely" dwarf planet.[5]

    Numbering and naming

    This minor planet was numbered by the Minor Planet Center on 25 September 2018 (M.P.C. 111779).[6] As of 2018, it has not been named.[1]

    Physical characteristics

    Diameter and albedo

    According to Michael Brown and the Johnston's archive, 2014 EZ51 measures 615 and 770 kilometers in diameter, based on an absolute magnitude of 4.2 and 3.8, with an assumed albedo of 0.10 and 0.09, respectively.[3][5] As of 2018, no physical characteristics have been determined from photometric observations. The body's rotation period, pole and shape remain unknown.[2][7][8]

    References

    1. 1 2 3 4 5 6 "523692 (2014 EZ51)". Minor Planet Center. Retrieved 9 October 2018.
    2. 1 2 3 4 5 "JPL Small-Body Database Browser: 523692 (2014 EZ51)" (2017-09-12 last obs.). Jet Propulsion Laboratory. Retrieved 9 October 2018.
    3. 1 2 3 "List of Known Trans-Neptunian Objects". Johnston's Archive. 22 July 2017. Retrieved 9 October 2018.
    4. ↑ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 9 October 2018.
    5. 1 2 3 4 5 6 Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 9 October 2018.
    6. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 October 2018.
    7. ↑ "LCDB Data for (523692)". Asteroid Lightcurve Database (LCDB). Retrieved 9 October 2018.
    8. ↑ "Asteroid (523692) 2014 EZ51". Small Bodies Data Ferret. Retrieved 9 October 2018.

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