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DRTS (Kodama)


The main objective of DRTS (Data Relay & Tracking Satellite) is inter-satellite communications experiments to relay data between the target spacecraft (low earth orbit satellites, space stations, etc.) and ground stations.

  • High-Speed Data Relay Experiment
    High speed data transmission is a key technology to support various space activities such as global data reception from Earth observation satellites. DRTS will transmit high rate data over 240 megabits per second.
  • High-Accuracy Acquisition and Tracking Technology Experiment
    DRTS has an advanced system which can acquire and track the target spacecraft accurately.
  • Communications Network Experiment
    NASDA is also planning to evaluate the data relay time allocation method on several test spacecraft during the test.
Nation: Japan
Type / Application: Communication
Operator: NASDA
Contractors: Mitsubishi Electric (MELCO)
Equipment: S-band inter satellite communication equipment, Ka-band inter satellite communication equipment, Ka-band feeder link equipment
Configuration: DRTS bus
Propulsion: IHI BT-4, DC arc jet thrusters, and hydrazine thrusters
Power: 2 deployable solar arrays, batteries
Mass: 2800 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
DRTS (Kodama) (ex DRTS W) 2002-042B 10.09.2002 Ta YLP-1 H-2A-2024 with USERS
DRTS E - cancelled Ta YLP-1 H-2A-2024