The Night Watchmen

Maj. Erin Salinas, Detachment 1 commander, 20th Space Operations Group, sets the motion of a telescope at White Sands Missile Range, New Mexico, April 27, 2017. The telescope collects positional and photometric data on satellites and space objects orbiting the earth and forwards that data to the 18th Space Control Squadron and Joint Space Operations Center at Vandenberg Air Force Base, California. (U.S. Air Force photo/Airman 1st Class Dennis Hoffman)

PHOTO BY: Airman 1st Class Dennis Hoffman
VIRIN: 170429-F-SO188-9002.JPG
FULL SIZE: 0.16 MB
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