302780

302780 is a numbered minor planet of the main asteroid belt. It was discovered on 19 September 2003 by the Spacewatch survey at Kitt Peak National Observatory, Arizona, United States. The discovery was officially recorded by the Minor Planet Center, and the provisional designation 2003 TF203 was assigned before its numbering.

The asteroid follows a typical orbit in the central part of the main belt, with a semi‑major axis of approximately 2.8 astronomical units, an eccentricity of 0.12, and an inclination of about 6.5 degrees relative to the ecliptic. Its orbital period is roughly 4.5 Earth years. The orbit places 302780 well outside any major asteroid families, and it is considered part of the background population of the belt.

Photometric observations indicate a rotation period of around 12.4 hours, though the lightcurve amplitude remains modest, suggesting a near-spherical shape or a pole-on viewing geometry. The spectral type has not yet been conclusively determined; preliminary data from the Sloan Digital Sky Survey (SDSS) reflectance measurements suggest it may be of the S-type, which is common among inner- and central-belt asteroids. The estimated diameter, derived from an absolute magnitude of 15.0 and an assumed albedo of 0.15, is about 4.5 kilometers.

Currently, 302780 has not been given a formal name and remains designated only by its number and provisional designation. It continues to be monitored by survey programs to refine its orbital elements and physical characteristics.