Park, C.J., K.Y .Lee, Kim, J., Hong, I.H., Choi, H.D., & Ryoo, J.S. (1994). Development and flight tests of single axis digital sun sensor onboard the KSR-I-1 and -2. Journal of the Korean Society for Aeronautical and Space Sciences, 22, 65-72. https://www.dbpia.co.kr/Journal/articleDetail?nodeId=NODE01095970