@inproceedings{oai:jaxa.repo.nii.ac.jp:00010795,
 author = {竹内, 央 and 朝木, 義晴 and 中村, 信一 and 中村, 涼 and 井上, 高広 and 吉原, 圭介 and 吉川, 真 and 國森, 裕生 and 久保岡, 俊宏 and 後藤, 忠広 and Takeuchi, Hiroshi and Asaki, Yoshiharu and Nakamura, Shinichi and Nakamura, Ryo and Inoue, Takahiro and Yoshihara, Keisuke and Yoshikawa, Makoto and Kunimori, Hiroo and Kubooka, Toshihiro and Goto, Tadahiro},
 book = {宇宙科学シンポジウム講演集録, Proceedings of the Space Science Symposium},
 month = {},
 note = {第9回宇宙科学シンポジウム(2009年1月6日-7日, 宇宙航空研究開発機構宇宙科学研究本部), Precise orbit determination (POD) is a key factor to enable observations using the phase-referencing technique with Astro-G. A POD accuracy of 30 cm is required for X-band phase referencing observations, accuracy of 6 cm for K-band observations, and accuracy of 3 cm for Q-band observations. In HALCA (VSOP-1), typical orbit accuracy was only 1 - 30 m by using Ku-band doppler observables. In order to achieve more than 10-times improvement, Astro-G satellite will be equipped with a GPS receiver and a SLR (Satellite Laser Ranging) retroreflector array. Though the use of high precision accelerometer had also been discussed, we concluded that it could not be used because it must be saturated during fast switching observations. Local-ties between phase-centers of four GPS antennas, reference point of the SLR retroreflector, and satellite's center of mass position, which will be changed as fuel consumptions, should be maintained accurately., 形態: カラー図版あり, 著者人数: 13名, 資料番号: AA0064293031},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)},
 title = {Development status of orbit determination system for Astro-G},
 volume = {9},
 year = {2009}
}