Environment

Asteroid 2018 TC flew past Earth at 0.79 LD, 12th in 28 days


A newly discovered asteroid designated 2018 TC flew past Earth at 0.79 LD / 0.00204 AU (305 179 km / 189 629 miles) at 20:00 UTC on September 30, 2018. 

2018 TC belongs to the Apollo group of asteroids. It was first observed at ATLAS-MLO, Mauna Loa on October 2, 2018, three days after it made its close approach.

This asteroid has an estimated diameter between 12 and 28 m (40 – 92 feet) and it flew past Earth at a speed (relative to the Earth) of 5.86 km/s.

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


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This is the 12th known asteroid to flyby Earth during the month of September and the 52nd this year so far.

Data provider CNEOS, valid October 4, 2018. Image credit: The Watchers

Reference

Asteroid 2018 TC at Minor Planet Center, at CNEOS

Featured image: The green line indicates the object’s apparent motion relative to the Earth, and the bright green marks are the object’s location at approximately half hour intervals. The Moon’s orbit is grey. The blue arrow points in the direction of Earth’s motion and the yellow arrow points toward the Sun.



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