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  2. ICESat-2 - Wikipedia

    en.wikipedia.org/wiki/ICESat-2

    ATLAS instrument assembly at NASA GSFC. The sole instrument on ICESat-2 is the Advanced Topographic Laser Altimeter System (ATLAS), a space-based lidar.It was designed and built at Goddard Space Flight Center, with the laser generation and detection systems provided by Fibertek.

  3. Autonomous Landing Hazard Avoidance Technology - Wikipedia

    en.wikipedia.org/wiki/Autonomous_Landing_Hazard...

    NASA Langley created three lidar (light radar) sensors: the flash lidar, Doppler lidar and high-altitude laser altimeter for the ALHAT project. [10] The flash lidar uses imagery technology to detect objects larger than the size of a basketball on a planetary surface under all lighting conditions.

  4. ICESat - Wikipedia

    en.wikipedia.org/wiki/ICESat

    The sole instrument on ICESat was the Geoscience Laser Altimeter System (GLAS), a space-based lidar. GLAS combined a precision surface lidar with a sensitive dual-wavelength cloud and aerosol lidar. The GLAS lasers emit infrared and visible laser pulses at 1064- and 532-nm wavelengths.

  5. OSIRIS-REx - Wikipedia

    en.wikipedia.org/wiki/OSIRIS-REx

    The OSIRIS-REx Laser Altimeter (OLA) is a scanning and lidar instrument that will provide high resolution topographical information throughout the mission. [101] The information received by OLA creates global topographic maps of Bennu, local maps of candidate sample sites, ranging in support of other instruments, and support navigation and ...

  6. Mars Orbiter Laser Altimeter - Wikipedia

    en.wikipedia.org/wiki/Mars_Orbiter_Laser_Altimeter

    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.

  7. Laser Communications Relay Demonstration - Wikipedia

    en.wikipedia.org/wiki/Laser_Communications_Relay...

    The Laser Communications Relay Demonstration (LCRD) is a NASA mission that will test laser communication in space for extremely long distances, [1] between Earth and geosynchronous orbit. After being integrated into STPSat-6 , a part of STP-3 , LCRD launched on 7 December 2021 on an Atlas V 551.

  8. Bathymetry - Wikipedia

    en.wikipedia.org/wiki/Bathymetry

    The Advanced Topographic Laser Altimeter System (ATLAS) on NASA's Ice, Cloud, and land Elevation Satellite 2 (ICESat-2) is a photon-counting lidar that uses the return time of laser light pulses from the Earth's surface to calculate altitude of the surface. ICESat-2 measurements can be combined with ship-based sonar data to fill in gaps and ...

  9. Satellite geodesy - Wikipedia

    en.wikipedia.org/wiki/Satellite_geodesy

    A laser altimeter uses the round-trip flight-time of a beam of light at optical or infrared wavelengths to determine the spacecraft's altitude or, conversely, the ground topography. Examples: ICESat , MOLA .