Asteroid 2025 OL5 flew past Earth at 0.34 LD on July 29, 2025

Asteroid 2025 OL5 made a close approach to Earth at a distance of 0.34 lunar distances (LD), equivalent to 0.00088 AU or approximately 131 900 km (81 955 miles) at 11:16 UTC on July 29, 2025. The flyby occurred at a relative velocity of 16.58 km/s.

Based on its absolute magnitude (H) of 27.93, the estimated diameter of 2025 OL5 is between 8 and 18 m (26 to 59 feet). This estimation is typical for recently observed near-Earth objects of this magnitude.

Asteroid 2025 OL5 is classified as an Apollo-type near-Earth object. It has an orbital eccentricity of 0.532 and a semi-major axis of 1.23 AU, with a perihelion distance of 0.575 AU. The inclination of its orbit is 4.09 degrees, indicating a low inclination typical for many near-Earth asteroids with Apollo-type orbits.

No specific albedo values are currently available for 2025 OL5, precluding a confident determination of its surface composition. The asteroid is not classified as potentially hazardous according to current criteria.

2025 OL5 was observed over a short window, with first observation on July 28 and last on July 29, 2025. The data arc therefore spans 1 day. Its orbit carries a condition code of 6, indicating that the orbit is uncertain or preliminary and may be refined as more observations become available.

Several other asteroids have recently passed within 1 lunar distance of Earth. Notably, asteroid 2025 OC flew by at 0.77 LD at 03:20 UTC on July 17, 2025, and asteroid 2025 OF approached at 0.95 LD at 23:03 UTC on July 15, 2025. Additionally, asteroid 2025 OM2 made a close approach at 0.23 LD at 18:41 UTC on July 19, 2025.