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101955 Bennu - North Polar Terminator
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Caption NASA:"This image shows a Region near asteroid Bennu’s North Pole on the Terminator Line (such as the line between the Asteroid’s day and night sides).
The OSIRIS-Rex Spacecraft’s MapCam camera obtained the image on Feb. 20, 2019 while in orbit around the Asteroid from a distance of approx. 1,1 miles (such as about 1,8 Km).
At this distance, each pixel covers approximately 4,5" (---> inches, such as about 12 cm) of 101955 Bennu’s Surface. The largest Boulder, located slightly left (Sx) of the center, measures around 52 feet (approx. 16 meters) across, which, for scale, is the length of the trailer on a semi-truck.
During the Mission’s Orbital Phase, OSIRIS-REx circled the Asteroid near 101955 Bennu’s Terminator Line. While this positioning helped to maintain the Spacecraft in a stable orbit, the half-light/half-dark view of it created challenging conditions for science imaging".
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