Remote Sensing Satellite Rapid Response Technology Based on Orbit Maneuver

Remote Sensing satellite is an important means to acquire image information of key regions in order to meet the emergency needs of natural disasters like earthquake and wildfire. Limited by the orbit properties, the response time of the remote sensing satellite to the emergency mission is uncertain, and the revisit interval is long, which does not meet the rapid-response and frequent-visit requirement. In this paper, an orbit maneuver method is proposed, by adjusting the semi-major axis of the remote sensing satellite and changing the sub-satellite points, the satellite can respond to the emergency mission within 24 h and shorten the interval of the revisit to one day. Simulation results show that the proposed method is simple and effective, and can meet the requirements of emergency missions. Fuel consumed of a typical satellite for a specific mission is about 50 kg.