Suisei (Planet-A), Japan's second deep-space probe, launched on an M-3SII from Kagoshima toward Comet Halley. It studied the comet's hydrogen corona and solar-wind interaction, flying by about 151,000 km sunward in March 1986.
- Outcome
- Success
- Orbit
- Asteroid
- Payload to orbit
- 596 kg
- Flight
- 2nd
- of 8 Mu-3S-II flights
- Date and time
- 18 August 1985, 23:33 UTC
- Rocket
- Mu-3S-II
- Builder
- Nissan
- Launch site
- Mu Center, Uchinoura Space Center, Japan
- Payload
- Robotic Exploration
- International designator
- 1985-073
- Launches in 1985
- 74th of 125
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas