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CAS500 (Compact Advanced Satellite 500)

  • KARI is developing the CAS500-1 system, to meet the public needs for satellite images efficiently, to expand the domestic satellite industrial base, to cultivate related industry, and to promote satellite exports.

    CAS500 series will adopt the medium-sized standard platform which will be developed for the CAS500-1 system. It will save the time and cost for the development considerably. And domestically developed payloads, such as electro-optical cameras, synthetic aperture radars, microwave sounder and hyper-spectral imager will be installed on the standard platform.

    CAS500 program is divided into phase I and phase II. In phase I, 500kg class standard platform will be developed. And two 0.5m resolution electro-optical satellites (CAS500-1 and CAS500-2) will be developed by using that platform. While developing the CAS500-1 system, KARI will transfer the satellite technologies accumulated over the years to the domestic industry and the CAS500-2 whose specification is identical to that of CAS500-1, will be developed by domestic industry. In phase II, the domestic industry will be responsible for development of five satellites by using the standard platform developed in phase I. They will be equipped with electro optical camera, synthetic aperture radar, microwave sounder, hyper-spectral imager and so on.

    The CAS500 can be easily commercialized as it can be developed in a relatively short period of time at a low cost compared to medium to large sized commercial satellite. In addition to that, by developing multiple satellites in a short time and operating them simultaneously, it will help satisfy various public needs for earth observation and reduce the observation interval.

    [Key Specifications the CAS500-1]

    차세대중형위성 1호 시스템 주요 규격
    Type Specifications
    Satellite System
    • Mass : App. 500kg (incl. payload and fuel)
    • Mission Lifetime : > 4 years/li>
    • Operating Orbit : Sun synchronous circular orbit (altitude around 500km)
    Electronic Optical Payload
    • Resolution : < 0.5m (Panchromatic: PAN), < 2.0m (Multi-spectral: MS) (based on altitude of 500km)
    • Wavelength spectrum: 450 - 900nm (PAN 1band, MS 4bands) Swath Width: > 12km

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