SDO | Solar Dynamics Observatory - Spacecraft

THE SDO SPACECRAFT

• The total mass of the spacecraft at launch is 3200 kg (payload 270 kg; fuel 1400 kg).
• Its overall length along the sun-pointing axis is 4.5 m, and each side is 2.22 m.
• The span of the extended solar panels is 6.25 m.
• Total available power is 1540 W from 6.5 m² of solar arrays (efficiency of 16%).
• The high-gain antennas rotate once each orbit to follow the Earth.