Hyochoong Bang

Apr 23, 2023 | mdpi.com | Taeho Kim |Natnael S. Zewge |Hyochoong Bang |Hyosang Yoon

Abstract:Star images from star trackers are usually defocused to capture stars over an exposure time for better centroid measurements. While a satellite is maneuvering, the star point on the screen of the camera is affected by the satellite, which results in the degradation of centroid measurement accuracy. Additionally, this could result in a worse star vector outcome. For geostationary satellites, onboard thrusters are used to maintain or change orbit parameters under orbit disturbances.

Feb 19, 2023 | mdpi.com | Hyochoong Bang |Natnael S. Zewge

This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticlebyNatnael S. Zewge and Hyochoong Bang * Department of Aerospace Engineering, Korea Advanced Institute of Science & Technology (KAIST), Daejeon 34141, Republic of Korea*Author to whom correspondence should be addressed. Remote Sens.

Feb 9, 2023 | mdpi.com | Muhammad Arshad |Jamal Ahmed |Hyochoong Bang |Muhammad Awais

This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticlebyMuhammad Awais Arshad, Jamal Ahmed and Hyochoong Bang * Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea*Author to whom correspondence should be addressed.