A system and method for performing in-orbit alignment calibration using on-board attitude sensors to improve reflector alignment after deployment to improve spacecraft pointing. The panel includes a plurality of unit regions, each having a first color unit region and a white color unit region. The tissue contacting wall is fabricated from a non-conductive material and includes a plurality of apertures formed therethrough. To improve power efficiency, a second controlled current source provides current to the output load when the desired output voltage level is achieved.