Asteroid 2025 PQ1 flew past Earth at 0.85 LD on August 9, 2025

Asteroid 2025 PQ1 flew past Earth at a distance of 0.85 lunar distances (LD), equivalent to 0.00218 astronomical units (AU) or approximately 326 000 km (202 625 miles), at 04:56 UTC on August 9, 2025. The relative velocity at closest approach was measured at 8.67 km/s.

Based on its absolute magnitude (H) of 26.74, asteroid 2025 PQ1 is estimated to be between 14 and 32 m (46 to 105 feet) in diameter, depending on its surface reflectivity.

Asteroid 2025 PQ1 is classified as an Apollo-type near-Earth object. It has an orbital eccentricity of 0.529, a semi-major axis of 2.14 AU, and a perihelion distance of 1.01 AU. Its inclination is measured at 7.52°, placing its orbit somewhat above the ecliptic compared to many other near-Earth asteroids. The orbit is characterized by moderate eccentricity, common among Apollo group asteroids.

Physical characteristics such as albedo are not currently available for this object. It is not classified as a potentially hazardous asteroid, as it does not meet the criteria for that designation.

2025 PQ1 was first observed on August 7, 2025, and last observed on August 9, 2025, resulting in a brief two-day observation arc. The current orbit has a condition code of 7, indicating that the trajectory calculations remain uncertain or preliminary and may be refined with further data.

Other asteroids have recently passed within 1 lunar distance of Earth. For example, asteroid 2025 PU passed at 0.14 LD on August 2, 2025. Asteroid 2025 PC approached at 0.29 LD on July 31, 2025. Additionally, asteroid 2025 OL5 came within 0.34 LD on July 29, 2025. Each of these objects was considerably smaller, with estimated sizes ranging from just a few meters in diameter.