Yohkoh
Mu-3S-II
Institute of Space and Astronautical Science
Launch Status
SuccessMission
Yohkoh
Type: Earth Science
The objective of Solar A or Yohkoh (Japanese for sunbeam) is to study the high-energy radiations from solar flares (hard and soft X-rays and energetic neutrons) as well as quiet structures and pre-flare conditions. The mission is a successor to Hinotori, a previous Japanese spacecraft flown at the previous solar activity maximum in 1981.
Trajectory
The trajectory is unavailable. Check back for updates.
Location
Mu Center
Uchinoura Space Center, Japan
43 rockets have launched from Uchinoura Space Center, Japan.

Agency
Institute of Space and Astronautical Science – ISAS
- Type: Government
- Abbreviation: ISAS
- Launchers: Lambda
- Country: JPN
ISAS is a Japanese national research organization of astrophysics using rockets, astronomical satellites and interplanetary probes which played a major role in Japan’s space development.