1966 Press Photo American & Canadian stations of the North American Air Defense

American and Canadian stations of the North American Air Defense Space Defense Center keep track of satellite traffic in the earth's immediate neighborhood with super-sensitive equipment such as this Baker-Nunn space camera. It can detect light reflected from an object no larger than a baseball 50,000 miles from earth.

Photo is dated 1966.

Photo measures 8.75 x 7 inches.