Images

Integrating Power Distribution Unit

STEREO mechanical and quality assurance personnel at APL team up to integrate the power switching electronics unit on one of the twin STEREO observatories (STEREO “A" observatory—the one that will be placed ahead of Earth in its orbit around the sun). The power switching electronics unit is used to control and regulate power from the spacecraft's solar panels or battery to the spacecraft's main electrical system.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory