High Energy Transient Explorer 2 (HETE-2)Pegasus Hybrid Orbital Sciences Corporation Launch Status Success Mon ยท Oct 9th, 2000 1:38 AM EDT Location Kwajalein Atoll Air launch to orbit 44 launches have been at this location. Rocket Pegasus Hybrid Length: 15.5 meters Diameter: 1.28 meters First Launched: April 3, 1995 The Pegasus is an air-launched rocket developed by Orbital Sciences Corporation (now part of Northrop Grumman Innovation Systems). Capable of carrying small payloads of up to 443 kilograms (977 lb) into low Earth orbit, the vehicle consists of three solid propellant stages and an optional monopropellant fourth stage. Pegasus is released from its carrier aircraft at approximately 40,000 ft (12,000 m), and its first stage has a wing and a tail to provide lift and attitude control while in the atmosphere. The Pegasus Hybrid rocket has been launched a total of 4 times with 4 successful and 0 failed launches. Agency Orbital Sciences Corporation Type: Commercial Abbreviation: OSC Administration: Founded: Launchers: Spacecraft: Country: USA View Rocket Launch Schedule