@techreport{oai:jaxa.repo.nii.ac.jp:00006302, author = {川井, 洋志 and 関口, 毅 and 稲場, 典康 and 小松, 茂則 and 鈴木, 秀人 and Kawai, Hiroshi and Sekiguchi, Takeshi and Inaba, Noriyasu and Komatsu, Shigenori and Suzuki, Hideto}, month = {Jan}, note = {JAXA has been developing Next Generation Star Tracker (STT). STT is the attitude sensor, which consists of hood, lenses, CCD, and some electric circuits. In acquisition mode, images of stars detected by CCD are compared with a star catalogue to determine the absolute orientation of a spacecraft without a-priori attitude information. STT is more accurate attitude sensor than earth sensor plus sun sensor system. Advanced Land Observation Satellite (ALOS) mounts large size Star Tracker to fulfill its high attitude accuracy requirement. On the other hand, we have been developing an autonomous Star Tracker whose size, power and mass is smaller than ALOS/Star Tracker., 資料番号: AA0049054046, レポート番号: JAXA-SP-05-008}, title = {次世代型スタートラッカの研究}, year = {2006} }