MicroHETsat, or üHETsat, is a technology demonstration satellite developed by the European Space Agency (ESA) and the Italian Space Agency (ASI) for testing Hall Effect Thrusters on a microsatellite platform. The satellite was built by the Italian company SITAEL. Its development was supported by ESA's optional General Support Technology Programme (GSTP). Originally, it was expected to launch on the LauncherOne or Vega rocket, but was eventually launched on a Falcon 9 in December 2023.