摘要(英) |
Taiwan is always on the pass way of typhoon, so typhoon always act natural disaster to Taiwan. Our weather station can only receive weather message from the GMS series satellite. We hope at least one satellite pass through Taiwan in an hour to execute weather observation mission, and provide more detail about typhoon.
Based on the mission demand, we analysis the characteristics of mission, decide the orbit type is sun-synchronous orbit with orbit height is 800 km and orbit inclination is 98.6 deg. According to the calculation of orbit and orbit tracking, geometry between satellite and Earth, and assumption of several types of constellation, we can gather statistics of time of satellite pass through effective horizon. Then we can get the maximum gap and mean gap of different constellation, and analysis the efficiency of coverage. The final submission, we can use 16 satellites with 16/16/2 walker constellation to accomplish our mission. |
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