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Akebono EXOS-D auroral research spacecraft

Japan's Akebono (EXOS-D), the first spacecraft associated with the Solar-Terrestrial Energy Program, was launched in February 1989 into a semi-polar orbit to study the polar cap and plasmasphere and directly investigate auroral particle acceleration, parallel electric fields, and magnetospheric substorms with eight scientific instruments.

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Identity

Aliases
AkebonoEXOS-DEXOS DAkebono (EXOS-D)
Family Name
Akebono
Full Name
Akebono EXOS-D auroral research spacecraft
Roles
orbiterobservatoryresearch
Status
retired
Type
spacecraft

Details

Description
Japan's Akebono (EXOS-D), the first spacecraft associated with the Solar-Terrestrial Energy Program, was launched in February 1989 into a semi-polar orbit to study the polar cap and plasmasphere and directly investigate auroral particle acceleration, parallel electric fields, and magnetospheric substorms with eight scientific instruments.
First Flight Year
1,989
Last Flight Year
2,015

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Creation Time
August 13, 2026 at 13:37:31 UTC
Updated Time
August 13, 2026 at 17:14:47 UTC