* Astronomy

Blobrana · L

RE: Terra Satellite

Blobrana · L

Seasonal Satellite Imagery from MODIS

Blobrana · L

On December 18, 1999, NASA launched Terra, the first of a series of large satellites meant to monitor the health of our planet. Terra carries five instruments, including two from Japan and Canada, that together track Earth's land, atmosphere, and ocean. Terra's primary mission is to answer the question: How is the Earth changing and what are the consequences of change for life on Earth? Here are some of the changes Terra has observed.
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Terra (EOS AM-1) is a multi-national NASA scientific research satellite in a sun-synchronous orbit around the Earth. It is the flagship of the Earth Observing System (EOS).
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Blobrana · L

NASA, Japan Release Most Complete Topographic Map of Earth
NASA and Japan released a new digital topographic map of Earth Monday that covers more of our planet than ever before. The map was produced with detailed measurements from NASA's Terra spacecraft.
The new global digital elevation model of Earth was created from nearly 1.3 million individual stereo-pair images collected by the Japanese Advanced Spaceborne Thermal Emission and Reflection Radiometer, or Aster, instrument aboard Terra. NASA and Japan's Ministry of Economy, Trade and Industry, known as METI, developed the data set. It is available online to users everywhere at no cost.

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Flight controllers at NASA's Goddard Space Flight Centre had to manoeuvre the Terra environmental spacecraft in late June to avoid orbital debris created by a Chinese anti-satellite (ASAT) weapon test early this year.

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