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单词 International Sun–Earth Explorer
释义
International Sun–Earth Explorer

Astronomy
  • A joint NASA–ESA series of probes to study the Earth’s magnetosphere and the Sun’s effect on it. The ISEE-1 and ISEE-2 spacecraft were both launched in 1977 October into orbits that carried them together into the magnetosphere. The instruments on board included magnetometers and particle detectors. Their missions ended when they re-entered in 1987 September. ISEE-3 was launched in 1978 August into an orbit completely outside the magnetosphere to measure the solar wind flow independent of any influence from the Earth. ISEE-3 was later sent to intercept Comet Giacobini–Zinner, and was renamed the International Cometary Explorer (ICE).

    http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/isee3.html Information page at NASA’s Goddard Space Flight Center.


Space Exploration
  • A programme consisting of two NASA satellites and one from the European Space Agency (ESA), that contributed to an international magnetospheric study. They carried energetic-ion mass spectrometers (EIMS) for one of the first uses of these instruments to examine ion plasma composition. NASA's ISEE-1 and ESA's ISEE-2 spacecraft were launched in October 1977 and re-entered the Earth's atmosphere in September 1987. NASA's ISEE-3 was launched in August 1978 and was taken out of Earth orbit in 1983 to fly by the comet Giacobini–Zinner in September 1985. To reflect this mission change, ISEE-3's name was changed to the International Cometary Explorer.


Geology and Earth Sciences
  • A group of three spacecraft comprising a NASA and ESA mission to study the relationship between Earth and the Sun, the solar wind, and cosmic rays. ISEE-1 and ISEE-2 were launched on 22 October 1977 and ISEE-3 on 12 August 1978. The US contributed ISEE-1 and ISEE-3, and ISEE-2 was built and managed by ESA. In 1982, ISEE-3 was removed from its orbit about one of the Lagrangian libration points, eventually into a heliocentric orbit ahead of Earth that would intersect the comet Giacobini–Zinner, at which point the spacecraft was renamed International Cometary Explorer (ICE). It traversed the plasma tail of the comet in September 1985. ISEE-1 and ISEE-2 reentered the Earth’s atmosphere on 26 September 1987.

    http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/isee3.html A joint ESA and NASA mission to study the Earth’s magnetosphere.


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