Sun Sensor is a commonly used sensor in
satellites for attitude determination. This paper
discusses the design and development of 2-axis
digital sun sensor (DSS) using commercial-off-theshelf (COTS) components. The CMOS linear array
based simple design of DSS, having a field of view of
±45°, has been implemented with a Sun angle
determination accuracy of 0.5°. Three such sensors
mounted appropriately on satellite’s platform can
determine the sun angle in normal conditions. The
design offers a low-cost and power efficient solution
for micro-satellites.
