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http://dx.doi.org/10.5139/JKSAS.2012.40.9.807

Attitude Scenarios of Star Observation for Image Validation of Remote Sensing Satellite  

Yu, Ji-Woong (연세대학교 천문우주학과)
Park, Sang-Young (연세대학교 천문우주학과)
Lee, Dong-Han (한국항공우주연구원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.40, no.9, 2012 , pp. 807-817 More about this Journal
Abstract
An optical payload needs to be validated its image performance after launched into orbit. The image performance was validated by observing star because ground site contains uncertainties caused by atmosphere, time of the year, and weather. Time Delayed and Integration(TDI) technique, which is mostly used to observe the ground, is going to be used to observe the selected stars. A satellite attitude scenario was also developed to observe the selected stars. The scenario is created to enable TDI to operate. Rotation angles of optical payload are determined in order for the selected stars to properly be passed at a desired angular velocity about rotation axis. The result of this research can be utilized to validate the quality of optical payload of a satellite in orbit. In addition, a quaternion for pointing selected stars is calculated minimizing the path from a given arbitrary attitude of satellite.
Keywords
Star Observation; Attitude Scenario; Quaternion Profile; Time Delayed and Integration;
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Times Cited By KSCI : 1  (Citation Analysis)
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