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The objective of the STSAT-2 (Science and Technology Satellite-2) program was to develop a low earth orbit 100 kg satellite to be launched on the indigenous Naro-1 (KSLV-1) launch vehicle from the Naro Space Center in 2009.

The STSAT-2 payloads are:

  • LIST (Lyman- alpha Imaging Solar Telescope) which acquires full disk of sun's atmosphere in the hydrogen Lyman alpha spectrum range and
  • SLR (Satellite Laser Ranging) which measures the precise distance between a ground station and the satellite.

The launch of STSAT 2A on a Naro-1 rocket on 25. August 2009 failed to reach orbit when the payload fairing failed to separate properly. The launch of STSAT 2B also on a Naro-1 vehicle failed after 137 seconds.

Nation: South Korea
Type / Application: Technology, astronomy
Operator: KAIST
Contractors: KAIST
Equipment: LIST, SLR
Power: 2 deployable fixed solar arrays, batteries
Lifetime: 2 years
Mass: 100 kg
Orbit: 300 km × 1500 km, 80° (planned)
Satellite COSPAR Date LS Launch Vehicle Remarks
STSAT 2A 2009-F03 25.08.2009 Na LP-1 F Naro-1
STSAT 2B 2010-F02 10.06.2010 Na LP-1 F Naro-1


  • Satellite Technology Research Center: STSat 2
Further Kitsat / KAISTSat / STSAT missions:

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