Yohkoh
Yohkoh was a completed Japanese-led solar-observatory mission carried out with United States and United Kingdom collaborators. It observed solar flares and the physical processes of the corona from low Earth orbit until operations ended in April 2004.
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Identity
- Aliases
- Solar-ASOLAR-A missionYohkoh mission
- Name
- Yohkoh
- Status
- completed
Details
- Astronauts
- -
- Description
- Yohkoh was a completed Japanese-led solar-observatory mission carried out with United States and United Kingdom collaborators. It observed solar flares and the physical processes of the corona from low Earth orbit until operations ended in April 2004.
- Destination
- Near-circular low Earth orbit at approximately 550 km perigee and 600 km apogee (31° inclination; 98-minute period)
- End Date
- 2004-04-23
- Launch Site
- Outcome
- Yohkoh returned more than a decade of X-ray and gamma-ray observations that transformed understanding of the dynamic solar corona and magnetic reconnection in flares.
- Programs
- -
- Start Date
- 1991-08-30
- Vehicle Families
Links
- Official Url
- https://science.nasa.gov/mission/yohkoh/
Assets & Meta
- Creation Time
- August 1, 2026 at 00:02:31 UTC
- Updated Time
- August 21, 2026 at 01:49:00 UTC
Other
- Affiliations
- Space Stations
- -
- Vehicles