Minotaur I
The original Minotaur launch vehicle, consisting of an M55A1 first stage, SR19 second stage, Orion 50XL third stage, Orion 38 fourth stage, and optional HAPS fifth stage for velocity trim and multiple payload deployment. Payload 580 kg to a 185 km, 28.5 degree orbit from Cape Canaveral; or 310 kg to a 740 km sun-synchronous orbit from Vandenberg.
Read more about this topic: Minotaur (rocket Family)