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Asteroid 2017 DG16 to flyby Earth at 0.34 LD

asteroid-2017-dg16-flyby

A newly discovered asteroid named 2017 DG16 will flyby Earth at a very close distance of 0.34 LD (130 560 km / 81 126 miles) from the surface of our planet at 21:08 UTC on February 23, 2017. This is the fifth known near-Earth asteroid to flyby Earth within 1 lunar distance since January 9, 2017.

2017 DG16 was first observed by Mt. Lemmon Survey on February 21. The estimated size of this asteroid is between 2 and 8 m (6.5 – 26.2 feet). It will flyby Earth at a speed (relative to the Earth) of 6.91 km/s.

This object belongs to the Apollo group of asteroids, Earth-crossing asteroids that have an orbital semi-major axis greater than that of the Earth (> 1 AU) but perihelion distances less than the Earth's aphelion distance (q < 1.017 AU).

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

This is the fifth known near-Earth asteroid to flyby Earth within 1 lunar distance since January 9, 2017, and the sixth since November 25, 2016. You can find them all in our Near-Earth Objects category.

As of February 19, 2017, there are 15 761 known near-Earth objects. 8 507 of them belong to the Apollo group of asteroids.

References:

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 one 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. Credit: Minor Planet Center. Edit: TW

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