This is the 105th known asteroid to fly past Earth within 1 lunar distance (<1 LD) since the start of the year and the 30th so far this month, making October the month with the most <1 LD asteroid flybys since at least 2020.
This is also the closest <1 LD asteroid flyby of the month and the second closest of the year, after 2024 LH1 at 0.00005 on June 6.
2024 UG9 was first observed at Mt. Lemmon Survey, Arizona at 07:02 UTC — 5 hours and 39 minutes before its closest approach to Earth.
The object belongs to the Apollo group of asteroids and has a diameter between 0.82 and 1.8 m (2.7 – 5.9 feet).
References:
1 Astereoid 2024 UG9 – Minor Planet Center – Accessed October 31, 2024
2 Astereoid 2024 UG9 – CNEOS – Accessed October 31, 2024