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APEX

Pegasus

Orbital Sciences Corporation

Launch Status
Success

Mission


APEX

  • Type: Planetary Science
  • Orbit: Elliptical Orbit
  • Launch Cost: $40,000,000

APEX (Advanced Photovoltaic & Electronic Experiment) successfully tested a wide array of advanced photovoltaic and electronic components in a harsh radiation environment, provided significant data to support improved designs for future space systems. During operation, APEX’s highly elliptical orbit allowed the investigation of space plasma effects on high-voltage operation (current leakage at positive voltages and arcing at negative voltages) in the perigee region, plus the investigation of space radiation effects (decreased array power output from passage through the inner radiation belt) in the apogee region.

Location


Edwards Air Force Base

Air launch to orbit

Edwards Air Force Base has witnessed the launch of 5 rockets, including 5 orbital launch attempts, while Air launch to orbit, has been the site for 51 rocket launches.

Edwards Air Force Base

Rocket


Orbital Sciences Corporation Pegasus

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.

Pegasus

Agency


Orbital Sciences Corporation

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