4 November 1996, 17:08 UTC
High Energy Transient Explorer (HETE) & Satelite de Aplicaciones Cientificas-B (SAC-B)

OSC's Pegasus XL suffered a third-stage electrical fault that stopped pyrotechnics from firing, stranding NASA's HETE gamma-ray burst satellite and Argentina's SAC-B on the spent stage; neither could deploy its solar panels and both lost power within two days.
- Outcome
- Partial
- Payload to orbit
- 638 kg
- Flight
- 6th
- of 31 Pegasus XL flights
- Date and time
- 4 November 1996, 17:08 UTC
- Rocket
- Pegasus XL
- Builder
- OSC
- Launch site
- Wallops Flight Facility, Air launch to orbit
- Payload
- Unknown
- International designator
- 1996-061
- Launches in 1996
- 65th of 77
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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