The Integrated Standard Imager for Microsatellites (iSIM) is a new generation of high-resolution optical binocular imagers for Earth Observation satellites developed by SATLANTIS. It is the result of combining a compact and efficient optomechanical design, with the latest advances in electronics (both in detectors and processors), the use of commercialoff- the-shelf (COTS) components, and the incorporation of advanced manufacturing procedures. Through the use of cutting-edge technologies, the design of iSIM significantly reduces build & delivery times and provides a new level of affordability. iSIM-170 is the highest resolution optical payload of the iSIM family. The imager features a binocular camera with an aperture of 170mm offering multispectral capability (R, G, B, NIR, and PAN). At 500 km, iSIM-170 provides a spatial resolution of less than 1m over a swath width of 7.5km thanks to the implementation of superresolution algorithms based on Artificial Intelligence techniques. This spatial resolution is independent of the number of bands and is preserved while the satellite moves not only along but also across its orbit. The mass of iSIM-170 is less than 15kg (for more information please visit https://satlantis.com/isim-170/). Based on the early optical prescription, IDOM performed a thorough optical tolerance analysis and conceived a compact, lightweight and quasi-athermal optical bench aimed at providing optimum stability during observation in orbit while coping with the demanding launching conditions. IDOM’s collaboration with SATLANTIS expanded to the fabrication and testing of the first qualification units and the design of the first electronics box.
KEYWORDS: Satellites, Image processing, Cameras, Spatial resolution, Signal to noise ratio, RGB color model, Interfaces, Space operations, Imaging systems, High resolution satellite images
The requirements of the natural resources sector for remote sensing products are generally very demanding both in terms of data quality and coverage/revisit time. The MANTIS mission (Mission and Agile Nanosatellite for Terrestrial Imagery Services) is being developed to specifically fulfil those requirements using a compact and agile 12U Cubesat system. MANTIS will embark the iSIM90-12U (integrated Standard Imager for Microsatellites) an innovative high-resolution optical payload for Earth Observation missions developed by Satlantis Microsats SL. The payload consists of a compact binocular telescope specifically designed to fit within a volume of 8U, and thus ideal for 12U CubeSat standard platforms. The design relies on iSIM technology, comprised by the integration of four key technologies: a binocular diffraction-limited optical system working at visible and near-infrared wavelength; a high precision, robust and light structure; a set of innovative COTS detectors with 2D CMOS sensors; and a high-performance and reconfigurable on-board processing unit with super-resolution algorithms implemented. Open Cosmos Ltd. as Prime is responsible for the end-to-end space mission service, including the provision of a new generation 12U spacecraft platform, while Terrabotics Ltd. will analyse and provide data to the end users. The mission is funded by the European Space Agency’s InCubed (Investing in Industrial Innovation) program supporting innovative activities related to Earth Observation enabling European industry to compete commercially in the global marketplace. An overview of the development status of the mission will be presented focusing on the consolidation of the payload design and the mission end products.
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