• Setellite Technology Research Center 1
  • Setellite Technology Research Center 2
  • Setellite Technology Research Center 3
  • Setellite Technology Research Center 4
    The sky is the limit STSAT - KAIST Setellite Technology Research Center

    ∎ STSAT-2

    STSAT-2 was Korea’s first 100kg low Earth orbit satellite to be launched in the first domestically developed launch vehicle (KSLV-1). Unfortunately, both STSAT-2A, launched on Aug. 25, 2009, and STSAT-2B, launched on Jun. 10, 2010, failed at the orbital injection stage.

    STSAT-2 utilized most of the experience and outcomes from the STSAT-1 project. The goals were to enhance performance and achieve further miniaturization.

    STSAT-2 was a frame-type satellite structure and had been scheduled to test a range of core technologies including a composite material solar panel, Dual Head Star Tracker (DHST), CCD digital sun sensor, Pulsed Plasma Thruster (PPT), Compact on-board Satellite Computer, and X-band Transmitter.

    - To operate a radiometer for earth and atmosphere monitoring
    - To verify precise orbit and attitude determination technologies
    - To develop and verify core satellite technologies
    - To develop and operate world-class advanced observation devices
    Key Specifications
    Orbit inclination 80°, altitude 300×1500km
    Size < 1m3
    Weight < 100kg (Including adaptor)
    Power Rating 160WⓐEOL
    Attitude Control Method 3-axis stabilization, 0.15 deg pointing accuracy
    (Transfer Speed)
    S-band Uplink: 9.6kbps
    S-band Downlink: 38.4kbps
    X-band Downlink: 10Mpbs
    Main Computer Power PC 603e
    Core Technologies Dual Head Star Tracker(DHST)
    Fine Digital Sun Sensor(FDSS)
    Pulsed Plasma Thruster(PPT)
    Electro-magnetic Torque(EMT)
    Compact On-board Computer
    X-band Transmitter
    Payloads Dual-channel Radiometers for Earth and Atmosphere Monitoring(DREAM)
    Laser Reflector Array(LRA)