Single-satellite programme, addressing properties of the Magnetosphere.
Joint JAXA-NASA programme: JAXA responsible of satellite development, NASA of the launch. Shared mission operations
The platform is spin-stabilised.
The design life time is 4 years.
The satellite exploits an elliptical orbit, highly elongated along the magnetospheric tail.
See detailed description at
Onboard stored and real-time data downlinked to the Usuda and Kagoshima stations (Japan) and at the NASA's Deep Space Network. JAXA is responsible for spacecraft operations. Scientific data distributed from JAXA and NASA.
1992 - 2021
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational
, blue tag => planned