High Energy Transient Explorer (HETE) & Satelite de Aplicaciones Cientificas-B (SAC-B)Pegasus XLOrbital Sciences Corporation Launch Status Failure Mon ยท Nov 4th, 1996 12:08 PM EST LocationWallops Flight FacilityAir launch to orbit45 rockets have launched from Air launch to orbit. RocketPegasus XLLength: 17.6 meters Diameter: 1.27 meters First Launch: June 27, 1994The 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 XL rocket has been launched a total of 29 times with 26 successful and 3 failed launches. AgencyOrbital Sciences CorporationType: Commercial Abbreviation: OSCCountry: USA View Rocket Launch Schedule