366437

(366437) is a numbered minor planet located in the asteroid belt between Mars and Jupiter. It was discovered on 5 October 2004 by the LINEAR survey at Socorro, New Mexico. The provisional designation for the object was 2004 QL71, and it received its permanent number after its orbit was sufficiently well determined.

The asteroid follows a typical main-belt orbit with a semi‑major axis of approximately 2.6 astronomical units. Its orbital period is about 4.2 years, and it has a relatively low eccentricity of roughly 0.07, indicating a moderately circular trajectory. The inclination of its orbit relative to the ecliptic plane is about 6 degrees, suggesting it remains close to the plane of the solar system.

Observational data collected from photometric light‑curve studies indicate that (366437) has a rotation period of approximately 4.5 hours, with a light‑curve amplitude of about 0.12 magnitudes. These measurements imply that the asteroid is relatively spheroidal, with modest surface variation. Infrared observations from the NEOWISE mission estimate a diameter of around 4.5 kilometers, while an albedo of ~0.16 is consistent with a stony S‑type composition.

The object's discovery circumstances placed it within the background population of the central main belt. Its dynamical behavior does not show membership in any known asteroid family, indicating it likely has an independent collisional history. Continued observations are scheduled to refine its physical parameters and confirm its classification within the broader asteroid population.