The Pegasus spacecraft were manufactured by Fairchild Hiller, and operated by NASA.

[1] It had a total mass of 9,058 kilograms (19,969 lb),[2] and was equipped with two sets of micrometeoroid detection panels, and a radio for tracking and returning data.

[5] Following launch, Pegasus 2 was given the COSPAR designation 1965-039A, whilst NORAD assigned it the Satellite Catalog Number 01381.

[1] Boilerplate separation occurred 806 seconds after liftoff, with Pegasus 2's detectors being deployed one minute later.

[1] The spacecraft operated until 29 August 1968, and subsequently remained in orbit until it decayed and reentered the atmosphere on 3 November 1979.