Science Applications International Corp.
Science Applications International Corp.
Air Force Research Laboratory Space Vehicles Directorate
Air Force Research Laboratory Space Vehicles Directorate
著者所属(英)
Science Applications International Corporation
Science Applications International Corporation
Air Force Research Laboratory Space Vehicles Directorate
Air Force Research Laboratory Space Vehicles Directorate
出版者
宇宙航空研究開発機構
出版者(英)
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: 9th Spacecraft Charging Technology Conference
巻
JAXA-SP-05-001E
ページ
890 - 903
発行年
2005-08-01
抄録(英)
The Special Sensor Ultraviolet Limb Imager (SSULI) was developed by the U.S. Naval Research Laboratory and is deployed on the DMSP F16 polar orbiting spacecraft. The instrument is experiencing a level of noise that is, at times, interfering with its proper operation. The noise is correlated with the spacecraft chassis potential. We computed the potentials about DMSP and the resulting ionospheric currents entering the instrument to determine if the noise could be due to these currents. In order to obtain results of sufficient accuracy, it is necessary to use a reverse trajectory technique that effectively integrates over the thermal distribution of incident ions. The reverse trajectory technique is described in detail. The currents computed using this approach show a strong dependence on the chassis potential that is different from that of the observed noise levels, which suggests that either the noise has another source or other factors reduce the current.