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APEX

Pegasus

Orbital Sciences Corporation

Launch Status
Success

Mission

APEX

Type: Planetary Science

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

49 rockets have launched from Air launch to orbit.

Edwards Air Force Base, Air launch to orbit

Rocket

Pegasus – Orbital Sciences Corporation

Family: Pegasus
Length: 16.9 m
Diameter: 1.27 m
Launch Mass: 18 T
Low Earth Orbit Capacity: 443 kg

The Pegasus was manufactured by Orbital Sciences Corporation with the first launch on 1990-04-05. Pegasus has 4 successful launches and 0 failed launches with a total of 4 launches. 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.

Agency

Orbital Sciences Corporation

Type: Commercial
Abbreviation: OSC

Country: USA

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