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The Laser Altimeter could measure the height of the CSM above the lunar surface to within one meter. It used a pulsed ruby laser operating at 694.3 nanometers and 200 millijoule pulses of 10 nanoseconds duration. The Stellar Camera was used during the runs of the Laser Altimeter on the night side of the Moon.
The flash lidar flashes a laser and acts like a flash camera permitting the generation of lidar maps and images. [10] The Doppler lidar measures the vehicle's altitude and velocity to precisely land on the surface, and the high-altitude laser altimeter provides data enabling the vehicle to land in the chosen area. [10]
On August 21, 2009, the spacecraft, along with the Chandrayaan-1 orbiter, attempted to perform a bistatic radar experiment to detect the presence of water ice on the lunar surface, [55] [56] but the test was unsuccessful. [57] On December 17, 2010, a topographic map of the Moon based on data gathered by the LOLA instrument was released to the ...
It operated as an altimeter until a portion of the laser reached end-of-life in June 2001. The instrument then functioned as a radiometer until October 2006. [12] High resolution topographic map of Mars based on the Mars Global Surveyor laser altimeter research led by Maria Zuber and David Smith. North is at the top.
A laser altimeter is an instrument that measures the distance from an orbiting spacecraft to the surface of the planet or asteroid that the spacecraft is orbiting. The distance is determined by measuring the complete round trip time of a laser pulse from the instrument to the body's surface, and back to the instrument.
Advanced Topographic Laser Altimeter System ICESat-2 ( Ice, Cloud, and Land Elevation Satellite 2 ), part of NASA 's Earth Observing System , is a satellite mission for measuring ice sheet elevation and sea ice thickness , as well as land topography , vegetation characteristics, and clouds. [ 9 ]
Original – Topographic map of Mars as measured by Mars Orbiter Laser Altimeter, showing the two hemispheres of Mars. Reason Lead image. Topography of Mars. This was on the cover of Science magazine in 1999. Measured by Mars Orbiter Laser Altimeter. Articles in which this image appears Mars Orbiter Laser Altimeter FP category for this image
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