“Mars Global Surveyor”的概念、定义、翻译、参考文献-科学参考

Mars Global Surveyor

Astronomy

A NASA space probe launched in 1996 November to study the surface and atmosphere of Mars. MGS went into polar orbit around Mars in 1997 September, using aerobraking to circularize its orbit. In 1999 March the Mars Orbiter Camera (MOC) began a photographic survey, while the Mars Orbiter Laser Altimeter (MOLA) created a topographic map and the Thermal Emission Spectrometer (TES) studied the composition of the Martian surface, clouds, and atmospheric dust. MGS ceased operation in 2006 November.
http://mars.jpl.nasa.gov/mgs/ Official mission website.

Space Exploration

A US spacecraft, launched in November 1996, that went into orbit around Mars in September 1997 to conduct a detailed photographic survey of the planet, commencing in March 1998. The spacecraft used a previously untried technique called aerobraking to turn its initially highly elongated orbit into a 400 km circular orbit by dipping into the outer atmosphere of the planet. The Global Surveyor established its correct orbit for mapping the surface of Mars in February 1999, a year later than planned.
Mars Global Surveyor completed its primary mission on 31 January 2001 and has been in an extended mission phase ever since. The mission has studied the entire Martian surface, atmosphere, and interior; it has returned more data about the red planet than all other previous Mars missions combined. The craft has since returned more than 240 000 images, 206 million spectrometer measurements, and 671 million laser-altimeter shots. Its key science findings include images of small and young polygonal networks of apparently water-carved gullies that seemed to have been formed by large amounts of water seeping to the surface and causing landslides. It found evidence for a ground-water supply (like an aquifer) and also located two regions on the surface rich in hematite, providing further evidence for the existence of water at some time in the planet's history. The craft’s magnetometer revealed that the planet's magnetic field is not generated in the planet's core but is localized in specific crustal regions. The craft also provided the first 3D views of Mars’ north polar ice cap.
On 31 January 2001, Mars Global Surveyor completed its primary mission and then went into an extended mission phase, continuing to transmit data back to Earth until 2 November 2006, when controllers made a routine shift of its solar panels and communications were lost for good. Mars Global Surveyor, however, lasted four times longer than its design lifetime.
http://asimov.msss.com/moc_gallery/ This site is home to a huge collection (more than 212 000) of high-resolution images of the planet through September 2005; it also has additional links for information.

Geology and Earth Sciences

A NASA mission to Mars, launched in 1996, which placed a vehicle in orbit about the planet.
http://www.nasa.gov/mission_pages/mgs/index.html A NASA mission launched in 1996 to survey and map Mars.

单词	Mars Global Surveyor
释义	Mars Global Surveyor Astronomy A NASA space probe launched in 1996 November to study the surface and atmosphere of Mars. MGS went into polar orbit around Mars in 1997 September, using aerobraking to circularize its orbit. In 1999 March the Mars Orbiter Camera (MOC) began a photographic survey, while the Mars Orbiter Laser Altimeter (MOLA) created a topographic map and the Thermal Emission Spectrometer (TES) studied the composition of the Martian surface, clouds, and atmospheric dust. MGS ceased operation in 2006 November. http://mars.jpl.nasa.gov/mgs/ Official mission website. Space Exploration A US spacecraft, launched in November 1996, that went into orbit around Mars in September 1997 to conduct a detailed photographic survey of the planet, commencing in March 1998. The spacecraft used a previously untried technique called aerobraking to turn its initially highly elongated orbit into a 400 km circular orbit by dipping into the outer atmosphere of the planet. The Global Surveyor established its correct orbit for mapping the surface of Mars in February 1999, a year later than planned. Mars Global Surveyor completed its primary mission on 31 January 2001 and has been in an extended mission phase ever since. The mission has studied the entire Martian surface, atmosphere, and interior; it has returned more data about the red planet than all other previous Mars missions combined. The craft has since returned more than 240 000 images, 206 million spectrometer measurements, and 671 million laser-altimeter shots. Its key science findings include images of small and young polygonal networks of apparently water-carved gullies that seemed to have been formed by large amounts of water seeping to the surface and causing landslides. It found evidence for a ground-water supply (like an aquifer) and also located two regions on the surface rich in hematite, providing further evidence for the existence of water at some time in the planet's history. The craft’s magnetometer revealed that the planet's magnetic field is not generated in the planet's core but is localized in specific crustal regions. The craft also provided the first 3D views of Mars’ north polar ice cap. On 31 January 2001, Mars Global Surveyor completed its primary mission and then went into an extended mission phase, continuing to transmit data back to Earth until 2 November 2006, when controllers made a routine shift of its solar panels and communications were lost for good. Mars Global Surveyor, however, lasted four times longer than its design lifetime. http://asimov.msss.com/moc_gallery/ This site is home to a huge collection (more than 212 000) of high-resolution images of the planet through September 2005; it also has additional links for information. Geology and Earth Sciences A NASA mission to Mars, launched in 1996, which placed a vehicle in orbit about the planet. http://www.nasa.gov/mission_pages/mgs/index.html A NASA mission launched in 1996 to survey and map Mars.
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