Suisei Program

JAXA’s predecessor ISAS operated the Suisei Program, Japan’s Halley’s-comet exploration satellite launched on 19 August 1985. Suisei used ultraviolet imaging and a solar-wind instrument to measure the comet’s rotation and water-discharge variations, joined the international Halley Armada, and completed its mission at the final Earth swing-by on 20 August 1992.

Identity

Aliases: SuiseiPLANET-ASuisei MissionHalley’s Comet Exploration Satellite
Domains: spaceflight
Name: Suisei Program
Status: completed
Types: explorationscienceresearchoperations

Details

Description: JAXA’s predecessor ISAS operated the Suisei Program, Japan’s Halley’s-comet exploration satellite launched on 19 August 1985. Suisei used ultraviolet imaging and a solar-wind instrument to measure the comet’s rotation and water-discharge variations, joined the international Halley Armada, and completed its mission at the final Earth swing-by on 20 August 1992.
End Date: 1992-08-20
Leads
Participants: -
Start Date: 1985-08-19

Assets & Meta

Creation Time: August 13, 2026 at 14:53:06 UTC
Updated Time: August 13, 2026 at 14:53:06 UTC

Other

Official Urls: https://www.isas.jaxa.jp/en/missions/spacecraft/past/suisei.htmlhttps://www.isas.jaxa.jp/en/missions/launch_vehicles/m-3s2.html