Orbital Attempt
#3,650
OSC Mission
#2
Pad Launch
#2
Location Launch
#2
Designator
1991-051
Jul 17, 1991, 5:33 PM
1 update
Total Launches
51
Total Landings
0
Coordinates
34.9056, -117.8836
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 HAPS variant adds a Hydrazine Auxiliary Propulsion System maneuvering stage.
Length
15.5 m
Diameter
1.28 m
Launch Mass
18 t
Thrust
580 kN
LEO Capacity
250 kg
GTO Capacity
0 kg
Reusable
No
Maiden Flight
1991
Fastest Turnaround
2y 10mo
Total Launches
2
Successful
2
Failed
0
Consecutive Success
2
Maiden flight: Jul 17, 1991