Minotaur IV+ – Orbital Sciences Corporation Family: Minotaur Length: 23.9 meters Diameter: 2.35 meters Launch Mass: 86 Low Earth Orbit Capacity: 1950 The Minotaur IV+ was manufactured by Orbital Sciences Corporation with the first launch on . Minotaur IV+ has 1 successful launches and 0 failed launches with a total of 1 launches. The Minotaur IV+ launch system is derived from the Peacekeeper ICBM. The first three stages are taken directly from decommissioned Peacekeeper missiles. It is similar to the Minotaur IV, but uses a larger Star-48V upper stage in place of the Orion-38 used on the baseline Minotaur IV. Manufacturer Orbital Sciences Corporation is a Commercial USA entity that was founded in and is administered by . Orbital Sciences Corporation has 51 successful launches and 4 failed launches with a total of 55 launches.