Last week, Lockheed Martin and NASA powered on the Orion spacecraft that will be launched on Exploration Mission-1. According to NASA:
“'The initial power-on procedure verified the health and status of Orion’s core computers and power and data units and marks the beginning of critical spacecraft subsystem tests to get us ready for flight,' said Mark Kirasich, NASA Orion program manager. 'Our test team, ground support equipment and flight systems all performed remarkably well during the test. This is a major milestone for Orion and for our long range deep space exploration plans.'
"During the initial power-on tests, engineers and technicians connected the vehicle management computers to Orion’s power and data units to ensure the systems communicate precisely with one another to accurately route power and functional commands throughout the spacecraft for the duration of a deep-space exploration mission. In spaceflight, Orion will generate power through its four solar array wings which collectively hold about 15,000 solar cells that can harness enough electricity to power eight three-bedroom homes. The power and data units then distribute that power as needed throughout the spacecraft."