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Institute of Space and Astronautical Science

Launch Status



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.


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Mu Center

Uchinoura Space Center, Japan

43 rockets have launched from Uchinoura Space Center, Japan.

Mu Center, Uchinoura Space Center, Japan


Mu-3S-II – Institute of Space and Astronautical Science

  • Family: Mu
  • Length: 27.8 m
  • Diameter: 1.41 m
  • Launch Mass: 61 T
  • Low Earth Orbit Capacity: 800 kg

The Mu-3S-II was manufactured by Institute of Space and Astronautical Science with the first launch on 1985-01-07. Mu-3S-II has 7 successful launches and 1 failed launches with a total of 8 launches. The Mu, also known as M, was a series of Japanese solid-fuelled carrier rockets, which were launched from Uchinoura between 1966 and 2006. Originally developed by Japan’s Institute of Space and Astronautical Science, Mu rockets were later operated by Japan Aerospace Exploration Agency following ISAS becoming part of it.


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.

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