ORBITAL SCIENCES CORPORATION

Pegasus HAPS | 7 microsats

SUCCESSJul 17, 1991 at 17:33 UTCPegasus HAPS
PADEdwards Air Force Base
SITEAir launch to orbit →
VEHICLE
Pegasus HAPS
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 9c6e2c5f-78d6-487d-b880-c184b53e119e
Reported date: Jul 17, 1991 at 17:33 UTC
Last synced: 3 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
Orbital Sciences Corporation
VARIANT
HAPS
FLIGHTS
2
SUCCESSES
2
SUCCESS RATE
100%

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.

When is the Pegasus HAPS | 7 microsats launch?
The Pegasus HAPS | 7 microsats is scheduled for Wednesday, July 17, 1991 at 5:33 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Pegasus HAPS | 7 microsats?
The Pegasus HAPS | 7 microsats mission uses the Pegasus HAPS rocket, manufactured by Orbital Sciences Corporation. The Pegasus HAPS has flown 2 times with a 100% success rate.
Where is the Pegasus HAPS | 7 microsats launching from?
The launch takes place from Edwards Air Force Base at Air launch to orbit.
Who is launching Pegasus HAPS | 7 microsats?
The Pegasus HAPS | 7 microsats is operated by Orbital Sciences Corporation.
Can I watch the Pegasus HAPS | 7 microsats launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 29, 2026 03:06 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 03:06 UTC
Launch date set: Jul 17, 1991 at 17:33 UTC
NET (No Earlier Than) confirmed by Orbital Sciences Corporation
Mar 29, 2026 03:06 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 3 hours ago
Launch Library 23 hours ago
Launch ID: 9c6e2c5f-78d6-487d-b880-c184b53e119e
Open-Meteo Weather1 day ago
Pad weather at 34.91, -117.88

Mission Profile

Pegasus HAPS | 7 microsats was a Pegasus HAPS mission operated by Orbital Sciences Corporation that lifted off from Edwards Air Force Base, Air launch to orbit on July 17, 1991. The launch was a success.