The Lunar Laser Ranging Instrument (LLRI), one of the 11 scientific instruments on board Chandrayaan-1, was activated on Sunday, when the spacecraft was passing over the western part of the Moon’s visible atmosphere.
A press release from the Indian Space Research Organisation said the LLRI was a radar that would generate information on the height of hills, mountains, and depth of craters and valleys of the Moon.
It sent high-energy lasers towards a strip of the moon’s surface and they would be reflected to the spacecraft. With this, the instrument can measure the height or depth of the Moon’s hills or craters.
An ISRO official said if the laser returned late, it signified the presence of a crater or a valley. If it came back early, it meant there was a mountain or a hill.
A press release from the Indian Space Research Organisation said the LLRI was a radar that would generate information on the height of hills, mountains, and depth of craters and valleys of the Moon.
It sent high-energy lasers towards a strip of the moon’s surface and they would be reflected to the spacecraft. With this, the instrument can measure the height or depth of the Moon’s hills or craters.
An ISRO official said if the laser returned late, it signified the presence of a crater or a valley. If it came back early, it meant there was a mountain or a hill.
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