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Mu-3S-II
Launched 1991-08-30 02:30 UTCMu Center, Uchinoura Space Center, Japan
Success
Reached Low Earth Orbit
Worldwide
64th
orbital launch attempt in 1991
Institute of Space and Astronautical Science
1st
launch this year
Mu Center
1st
launch from this pad this year
Pad turnaround
582 d 14 h
since the pad's previous launch
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.
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.
Launches
32
Successful
24
75%
Upcoming
0
scheduled
Height
27.8m
Diameter
1.4m
To low Earth orbit
800kg
Liftoff thrust
1,930kN
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