The Low Energy Gamma-Ray Imager (LEGRI) was a payload for the first mission of the Spanish MINISAT platform, and active from 1997 to 2002. The objective of LEGRI was to demonstrate the viability of HgI₂ detectors for space astronomy, providing imaging and spectroscopical capabilities in the 10-100 keV range.
LEGRI was successfully launched on April 21, 1997, on a Pegasus XL rocket. The instrument was activated on May 19, 1997. It was active until February 2002.^[1]

The LEGRI system included the Detector Unit, Mask Unit, Power Supply, Digital Processing Unit, Star Sensor, and Ground Support Unit.^[1]

The LEGRI consortium included:^[1]

• University of Valencia
• University of Southampton
• University of Birmingham
• Rutherford Appleton Laboratory
• Centro de Investigaciones Energéticas
• Medioambientales y Tecnológicas (Ciemat)
• INTA