Since the beginning of the year, observatories worldwide have detected 96 asteroids passing within one lunar distance of Earth.
Asteroid 2025 RJ2 was first observed by Catalina Sky Survey on September 14 — one day before its close approach to Earth.
The object belongs to the Apollo group of asteroids and has an estimated diameter between 2.8 and 6.4 m (9 – 21 feet). It will make a close approach to Earth at 20:18 UTC today, traveling at a relative speed of 5.43 km/s.
According to current orbital solutions, asteroid 2025 RJ2 is not expected to approach Earth this closely again until September 21, 2084.
References:
1 Asteroid 2025 RJ2 – NASA/CNEOS – Accessed September 15, 2025
2 Asteroid 2025 RJ2 – Minor Planet Center – Accessed September 15, 2025