Suisei (spacecraft)
Japanese deep space probe to Halley's comet / From Wikipedia, the free encyclopedia
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Suisei (すいせい, lit. "Comet"), originally known as Planet-A, was an uncrewed space probe developed by the Institute of Space and Astronautical Science (now part of the Japanese Aerospace Exploration Agency, or JAXA).
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (May 2020) |
Quick Facts Names, Operator ...
Names | Planet-A (before launch) |
---|---|
Operator | ISAS (now part of 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 |
Sun orbiter | |
Flyby of 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) |
Close
It constituted a part of the Halley Armada together with Sakigake, the Soviet Vega probes, the ESA Giotto and the NASA International Cometary Explorer, to explore Halley's Comet during its 1986 sojourn through the inner Solar System.