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  • 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
    Research and Development
    • KITSAT Series
    • STSAT Series
    • NEXTSat-1
    • Cansat Competition Korea
    NEXTSat-1
    NEXTSat-1

    ∎ NEXTSat-1

    The project aims to develop a 100kg-grade next-generation small satellite to conduct scientific missions, verify core space technologies and develop new space technologies. It will be the first in the small satellite series developed under the objectives of miniaturization, modularization and standardization. Together with the talent development program aimed at training professionals to implement the Medium-term Space Development Plan, the project plays a central role in national space development.


    Objectives
    - To develop the next-generation small satellite series and new technologies by creating a standardized platform for
       small satellites based on miniaturization, modularization and standardization.
    - To conduct in-orbit verification of core space technologies that will enhance domestic space capabilities and enhance
       technological competitiveness for import substitution.
    - To develop space technologies and enhance independent space development capabilities through geo-environmental
       monitoring and astronomical observation
    - Hands-on and customized development of researchers and scientists through field experience in space technologies
       and science
    Objective Plan
    MIniaturization • Maximization of payload capacity through miniaturization of the satellite structure
    - Payload percentage in satellite weight : 40%~50%
    - Satellite weight : Approximately 100kg
    • Development of eco-friendly propulsion system which can be deployed selectively according to mission requirements
    Standardization • Standardization of electrical and mechanical connection conditions to support various missions
    • Set development standards for performance requirements such as lifespan, attitude pointing precision etc that vary between missions and develop as optional specifications
    Modularization Design modular payloads for the stable operation of the main body
    Low Power Designl Implement low power design by considering the power requirements of the respective technology verification payloads
    Key Specifications
    Item Development Parameters Note
    Operation Orbit (km) 650 ~ 800 Sun-synchronous Orbit (SSO)
    Weight (kg) Approx. 100
    Volume (mm) 578 × 598 × 923 Not including adaptor height
    Mission Length (Years) 2
    Attitude Control Method 3-axis stabilization
    Power (W) 250 As of mission completion
    Bus Votage (V) +24 ~ +32 Primary source+28V supply
    Communication Bus CAN Bus SOH
    Bus-Payload Communication Serializer/Deserializer LVDS < 100 Mbps
    Satellite Control Frequency S-band Satellite status information
    Observation Data Frequency X-band Payload
    Payloads
    Type Payload
    Scientific Mission Instrument for the Study of Space Storms(ISSS)
    Near-Infrared Spectrometer for Star Formation History(NISS)
    Core Space Technology
    Verification
    Next-generation High Speed Data Storage(SDR-10)
    5 mNm-grade Reaction Wheel Assembly(RWA)
    3 Dimensional Mass Memory적(3DMM)
    S-band TCTM Digital Transponder(SDT)
    Standardized On-board Satellite Computer Module (OBC)
    Space-grade Fiber Optic Gyro (FOG)
    FM-grade high speed/high precision Star Tracker (STR)