A Minotaur 1 rocket contracted by US Air Force on behalf of the US National Reconnaissance Office (NRO) for launch of NRO L-111. The contract for the mystery satellite is worth US$29.2 million. The contract stipulates that the military launch, which will take place from Wallops Island, Virginia, will take place by the end of 2018.
The Minotaur I uses stages from the Minuteman missile, and, as such is prevented from offering launches commercially.