Asteroid 2017 UF discovered a day after 0.99 LD Earth flyby
A newly discovered asteroid designated 2017 UF flew past Earth at 0.99 LD (~380 160 km / 236 220 miles) on October 15, 2017, one day before it was discovered. This is the 40th known asteroid to flyby Earth within 1 lunar distance since the start of the year….