Exos D [ISAS]
The purpose of the Exos D or Akebono mission was to investigate the particle acceleration regions above the auroral region in order to develop a better understanding of the acceleration mechanism and of its relation to substorm phenomena.
The spacecraft was spin-stabilized with a rotation rate of 7.5 rpm. The attitude was magnetically controlled with spacecraft axis pointing to the sun. All onboard operations such as command and data acquisition were controlled by an onboard computer permitting automatic operations for a full week.
The scientific instrumentation was:
JAXA stopped sending and receiving signals to and from EXOS-D on April 23, 2015 to terminate its operation after more than 26 years in orbit.
|Type / Application:||Research, upper atmosphere, plasma|
|Power:||4 deployable fixed solar arrays, batteries|
|Lifetime:||17 years (reached)|
|Orbit:||300 km × 8000 km, 75°|
|Exos D (Akebono)||1989-016A||21.02.1989||Ka LP-M||M-3S-2 [KM-D]|