VSAC conceptual diagram (IMAGE) Tokyo Institute of Technology Caption HIBARI is the on-orbit demonstration microsatellite using Variable Shape Attitude Control (VSAC) technology and the satellite adjusts the attitude via the recoil from the movement of the four movable solar cell paddles. Credit Tokyo Institute of Technology Usage Restrictions Display the credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.