STSAT-2C, or Science and Technology Satellite 2C (korean:나로과학위성) was a South Korean satellite. It was operated by the Korea Aerospace Research Institute, and was intended to demonstrate technology for future spacecraft. The satellite had a mass of 93 kilograms, and was expected to operate for less than a year.

The Laser Retro-reflector Array (LRA) network allows the satellite to be tracked with centimeter precision by means of Laser Laser Ranging Stations (SLR) that are part of the International Laser Ranging Service (ILRS) network.

A Langmuir probe is used to determine the temperature, electronic density and electrical potential of the plasma. The Space Radiation Effects Monitor (SREM) is used for measurements and monitoring of the near-Earth space environment.

In addition, the Reaction Wheel Assembly (RWA), the InfraRed Sensor (IRS) and the Femto second Laser Oscillator (FSO) are used for the verification of new space technologies.