is a large trans-Neptunian object in the scattered disc, approximately in diameter. It was discovered on 18 April 2010, by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii, United States.
also has a very short rotation period of only 3.2 hours, making it shorter than that of the dwarf planet Haumea, which has a rotation period of about 3.92 hours.
has not yet been imaged by high-resolution telescopes, so it has no known moons. The Hubble Space Telescope is planned to image in 2026, which should determine if it has significantly sized moons.
Observational history
Discovery was discovered on 28 April 2014, by the DECam at Coquimbo Region, Chile. with precovery observations back to 18 April 2010 by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii, United States.
Occultation An occultation by has occurred in New Zealand on 25 February 2019.
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 25 September 2018 (). , it has not been named.
Orbit and classification
orbits the Sun at a distance of 40.7–64.4 AU once every 380.5 years (139,010 days; semi-major axis of 52.5 AU). Its orbit has an eccentricity of 0.23 and an inclination of with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Haleakala in April 2010. is also in a 9:4 resonance with Neptune, where every 9 orbits Neptune does, does 4.
Physical characteristics Size and albedo
According to Michael Brown, he estimated that could measure kilometers in diameter, using an assumed albedo of 0.11, but he does use an outdated absolute magnitude of 4.1, not the newer 3.86, nor 3.87. On 25 February 2019, a stellar occultation by was observed in New Zealand. From these observations, a lower limit of was placed on its mean diameter, with another website yielded a equatorial diameter of at least based on the same occultation event. Assuming that the >1260 km occultation model is correct, then its geometric albedo must be less than 0.03.
Rotation In 2023, a study on photometric observations of trans-Neptunian objects by the Kepler space telescope found that rotates rapidly, and that it completes a rotation once every hours on its axis while exhibiting a light curve amplitude of magnitudes, which indicates its shape must be elongated.
Notes
References Solution using the Solar System Barycenter. Ephemeris Type: Elements and Center: @0)
Solution using the Sun. Ephemeris Type: Elements and Center: @sun)
External links
Discovery Circumstances: Numbered Minor Planets (520001)-(525000) – Minor Planet Center