arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1001.0197astro-ph.IM
收藏

指向SOFIA望远镜

Pointing the SOFIA Telescope

Michael A. K. Gross, John J. Rasmussen, Elizabeth M. Moore

摘要:

SOFIA是一个机载陀螺稳定的2.5米红外望远镜,安装在球面轴承上。与其前身不同,SOFIA将在绝对坐标中工作,尽管其位置和姿态不断变化。为了管理这一点,SOFIA必须使用航空电子数据和恒星识别相结合的方式将赤道坐标和望远镜坐标联系起来,管理视场旋转并跟踪天空图像。我们描述的算法和系统所需的获取和维护赤道参考系,它涉及到跟踪成像仪和科学仪器,设置振荡的副镜,并聚合成可重新定位的反射镜和抖动点。

英文摘要:

SOFIA is an airborne, gyroscopically stabilized 2.5m infrared telescope, mounted to a spherical bearing. Unlike its predecessors, SOFIA will work in absolute coordinates, despite its continually changing position and attitude. In order to manage this, SOFIA must relate equatorial and telescope coordinates using a combination of avionics data and star identification, manage field rotation and track sky images. We describe the algorithms and systems required to acquire and maintain the equatorial reference frame, relate it to tracking imagers and the science instrument, set up the oscillating secondary mirror, and aggregate pointings into relocatable nods and dithers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑