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STS-39 defense research vehicles

Dedicated spacecraft and related vehicle records for STS-39 defense research, including when they are part of the program archive.

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STS-39 defense research

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Air Force Program 675 official NASA archive view

Air Force Program 675Multi-instrument defense-research payload/Mission concludedAir Force Program 675 was a crew-commanded STS-39 observatory suite for infrared, ultraviolet, far-ultraviolet, X-ray, neutral-gas, auroral, and Earth-limb measurements.

SPAS-IIReusable free-flying experiment platform/Mission concludedDeployable and retrievable Shuttle Pallet Satellite used during STS-39 to carry infrared sensors away from Discovery for coordinated observations of natural and artificial targets.