Sigma - Model ATLAS - Topographic Laser Altimeter System
Our Aerospace Instrument Division’s scientists and engineers work in close coordination through the entire mission lifecycle. We provide a seamless bridge of scientific and mission objectives with our unique instrument engineering capabilities, including instrument design, analysis, modeling, development, test, calibration, and validation. Sigma Space has been a key contributor to complex and challenging aerospace instrument programs including the James Webb Space Telescope (JWST), ICESAT I and II, and the Glory APS Instrument. Our systemshave flown successfully on both balloons and high altitude aircraft such as the ER-2, returning remarkable data to help scientists begin to understand the nature of our changing planet. Sigma Space is ready to help you cost-effectively achieve your Aerospace Instrument objectives.
Products Details
The Advanced Topographic Laser Altimeter System (ATLAS) Laser Reference System (LRS) is a subassembly of the Alignment Monitoring and Control System, AMCS, on the ATLAS instrument, which will be installed on the ICESat-2 spacecraft. ICESat-2 is the second generation Ice, Cloud, and Land Elevation Satellite orbiting laser altimeter.
The ATLAS LRS consists of two adjoining detector arrays with associated optical systems (cameras), providing the ATLAS instrument with orientation measurements between the star field, the transmitted laser beam pattern, and the Telescope Alignment Monitoring Source, TAMS, measurement pattern. These measurements will be used for geo-location control by the spacecraft as well as geo-location knowledge for the ground processing of scientific data collected from the mission.
Sigma Space has been integral in the mechanical, optical, and thermal designs of the ATLAS LRS Optical Assembly, including designing and building a custom Optical Ground Support Equipment (OGSE) station for performing functional and comprehensive qualification testing of the instrument. In addition, Sigma Space has contributed to the mechanical design of and is responsible for fabricating a one of a kind Sunshade, which allows the ATLAS LRS to meet mission requirements while the sun is near to the LRS Field of View.
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