1 day / second
0.5 AU
Japan's first deep space probe, launched in 1985 to study Halley's Comet and conduct observations of the solar wind before contact was lost in 1995.
organization | JAXA |
orbital regime | Inner System |
learn more | Wikipedia |
launched | 1985-01-07 |
defunct | 1995-11-15 |
launch mass | 138.1 kg |
January 7, 1985 at 19:27 UTC
Flyby
Sakigake made a distant flyby of Halley's Comet on March 11, 1986, passing at a distance of about 7 million kilometers while measuring the comet's plasma and magnetic field environment.
November 15, 1995 at 00:00 UTC
Sakigake's mission came to an end when data contact was lost in November 1995, though its radio beacon continued transmitting until 1999.