Thor DM-21 Agena-B | Discoverer 31

Thor DM-21 Agena-B | Discoverer 31 is a mission aboard the Thor DM-21 Agena-B launch vehicle, operated by United States Air Force, launching from Vandenberg SFB, CA, USA.

Mission Details

  • Launch date: September 17, 1961 at 09:00 PM UTC
  • Launch vehicle: Thor DM-21 Agena-B
  • Operator: United States Air Force
  • Launch site: Vandenberg SFB, CA, USA