Suisei (spacecraft)

This article includes a improve this article by introducing more precise citations. (May 2020) (Learn how and when to remove this message )

Suisei

Japanese Aerospace Exploration Agency)
COSPAR ID	1985-073A
SATCAT no.	15967
Website	Suisei
Mission duration	5 years and 5 months (launch to fuel depletion)
Spacecraft properties
Launch mass	139.5 kg (308 lb)[1]
Start of mission
Launch date	23:33, August 18, 1985 (UTC) (1985-08-18T23:33Z)
Rocket	M-3SII
Launch site	Uchinoura Space Center
End of mission
Disposal	Ran out of fuel by February 22, 1991
Orbital parameters
Reference system	Heliocentric
Comet Halley
Closest approach	March 8, 1986
Distance	151,000 km (94,000 mi)
Flyby of Earth
Closest approach	August 20, 1992
Distance	~900,000 km (560,000 mi)

Suisei (

It constituted a part of the

Fifteen burns of Suisei's 3 N motors during the period of April 5–10, 1987, yielded a 65 m/s velocity increase for a 60,000 km Earth gravity assist swingby on August 20, 1992, although the craft was then lost behind the Sun for the summer.

The hydrazine fuel was depleted on February 22, 1991. Preliminary tracking indicated a 900,000-km flyby had been achieved.

Other planned encounters

ISAS had decided during 1987 to guide Suisei to a November 24, 1998, encounter with

References

External links

• Suisei
• Suisei Mission Profile by NASA's Solar System Exploration
• Halley's Comet Flyby^{[permanent dead link]}
• Suisei Mission Comet Halley Data Archive at the NASA Planetary Data System, Small Bodies Node