THE EUCLID SPACECRAFT

Euclid is designed to provide both excellent quality imaging in the visible, and spectroscopy and photometry in the near-infrared. The sunshield keeps the telescopes and instruments shaded from the Sun to ensure thermal stability and highly sensitive measurements. It will make sure VIS operates at -33 °C and NISP at -180 °C. To store the large data volume that will be accumulated during observations, Euclid has a mass memory of 4 terabits.

Euclid's mass in orbit will be 2 tonnes:

• 800 kg payload module
• 850 kg service module
• 40 kg balancing mass
• 210 kg propellant