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

Astronomy

Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

, providing imaging and spectroscopical capabilities in the 10-100 keV range.

LEGRI was successfully launched on April 21st, 1997, on a Pegasus XL rocket. The instrument was activated on May 19, 1997. It was active until February 2002.

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

The LEGRI consortium included:

• University of Valencia
• University of Southampton
  University of Southampton
  The University of Southampton is a British public university located in the city of Southampton, England, a member of the Russell Group. The origins of the university can be dated back to the founding of the Hartley Institution in 1862 by Henry Robertson Hartley. In 1902, the Institution developed...
  
  
• University of Birmingham
  University of Birmingham
  The University of Birmingham is a British Redbrick university located in the city of Birmingham, England. It received its royal charter in 1900 as a successor to Birmingham Medical School and Mason Science College . Birmingham was the first Redbrick university to gain a charter and thus...
  
  
• Rutherford Appleton Laboratory
  Rutherford Appleton Laboratory
  The Rutherford Appleton Laboratory is one of the national scientific research laboratories in the UK operated by the Science and Technology Facilities Council . It is located on the Harwell Science and Innovation Campus at Chilton near Didcot in Oxfordshire, United Kingdom...
  
  
• Centro de Investigaciones Energéticas
• Medioambientales y Tecnológicas (Ciemat)
• INTA

External links

• Low Energy Gamma-Ray Imager (LEGRI) on the internet