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The MSS A (Magnetic Storm Satellite) was an 36 kg, spin-stabilized spacecraft with a 4000 bps telemetry rate, which was jointly developed by the USAF's AFCRL and NASA's Explorer program.

The USAF was to provide the spacecraft and the instruments. The objective of MSS A was to verify and clarify the magnetic storm and auroral mechanisms and related phenomena by direct measurements in the inner magnetosphere of the low-energy proton and electron flux, the vector magnetic field, and the electric field.

This mission was to be launched in late 1970 or early 1971 on a Scout booster from Wallops Island, but was cancelled.

Nation: USA
Type / Application: Research, Magnetosphere
Operator: AFCRL, NASA
Contractors: Avco Systems Division
Mass: 36 kg
Satellite COSPAR Date LS Launch Vehicle Remarks
Explorer (MSS A) - not launched WI LA-3A Scout-B ?


Further Explorer missions:

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