References

131. The Institute of Space and Astronautical Science, 1993, op. cit., pp. 16, 25.
132. Japanese Satellite Studies Earth's Magnetic Fields, Space News, 3-9 February 1992, p. 16.
Adapted from: Europe and Asia in Space 1993-1994, Nicholas Johnson and David Rodvold [Kaman Sciences / Air Force Phillips Laboratory]

Halley's Comet

Japan launched its first deep space probes in 1985 as part of the international fleet to study Halley's comet. The Sakigake (Pioneer) and Suisei (Comet) probes were more distant observers than ESA's Giotto but returned much valuable information on the Halley-induced space environment. Both spacecraft were short, spin-stabilized drums with a total mass of about 140 kg. Although Suisei failed in 1991, Sakigake was still operational at the end of 1994. In recent years it has returned valuable information on the solar system medium and the Earth's magnetosphere (References 131 -132).

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Space

References

Halley's Comet