Asteroid 2018 RR1 flew past Earth at 0.94 LD on September 3

asteroid-2018-rr1-flew-past-earth-at-0-94-ld-on-september-3

A newly discovered asteroid designated 2018 RR1 flew past Earth at a distance of 0.94 LD / 0.00242 AU (362 026 km / 224 953 miles) on September 3, 2018.

This object belongs to the Apollo group of asteroids. It was first observed at Mt. Lemmon Survey on September 7, 4 days after it made its closest approach to Earth.

Its estimated diameter is between 2.9 and 6.4 m (9.5 and 20.9 feet) and it flew past Earth at 22:07 UTC at a speed (relative to the Earth) of 4.60 km/s. 

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

This is the now the 40th known asteroid to flyby Earth within 1 lunar distance since the start of the year. Between January 1 and September 9, a total of 45 known asteroids flew past us within 1 LD.

Reference

Asteroid 2018 RR1 at Minor Planet Center; at CNEOS

Featured image credit: CNEOS

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