Asteroid 2018 NW Flew Past Earth as close as 76,000 miles Shortly after being detected on July 8th, 2018

Asteroid 2018 NW flew past Earth at 0.32 LD, the second at 0.3 LD in 8 hours

A newly discovered asteroid designated 2018 NW flew past Earth at 0.32 LD / 0.00083 (124 166 km / 77 153 miles) at 03:12 UTC on July 8, 2018. 
Asteroid 2018 NW belongs to the Apollo group of asteroids and has an estimated diameter of 7.2 to 16 m (23 - 52 feet).
It was discovered at Palomar Mountain, ZTF (the same as 2018 NX) at 09:41 UTC on July 8, some 6 hours after it flew over Micronesia. 
ZTF or Zwicky Transient Facility is a wide-field sky astronomical survey commissioned in 2018. It's using a new camera attached to the Samuel Oschin Telescope at the Palomar Observatory in California, United States.
This camera, made up of 16 CCDs of 6144×6160 pixels each, is designed to detect transient objects that rapidly change in brightness, such as supernovae, gamma-ray bursts, collisions between two neutron stars, and moving objects like comets and asteroids.
Asteroid 2018 NW is the 38th known asteroid to flyby Earth within 1 lunar distance since the start of the year, the second this month and the second (after 2018 NX) in just 8 hours.
References:
Asteroid 2018 NW 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 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.

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