https://iap.swjtu.edu.cn/info/1023/2198.htm
http://sss.ynao.ac.cn/index.php?m=Index&a=lists&catid=75
丽江日冕仪数据获取公告
丽江日冕仪是西南交通大学、云南天文台与日本国立天文台三方合作运行的一台10cm口径内掩式里奥日冕仪，已累计运行近10年，它也是目前国内最早进行系统性观测的地基日冕仪。
丽江日冕仪观测站坐落于丽江天文观测基地园区内，海拔3200米，地理位置东经100°2′，北纬26°42′。该站周边空气污染和尘埃很少，大气洁净透明，天空很蓝，天空背景亮度低；由于海拔较高，大气较稀薄，消光较小；且该站的大气宁静度较好。丽江天文观测基地气候特征决定了全年分为旱季与雨季两个季节，每年除开6-9月份雨季，在其它月份日照充沛，天空背景亮度低，连续观测条件较好。经过国际合作，我们于2013年完成了日冕仪的安装和调试，10月进行了观测，并且得到了清晰的日冕结构。
丽江日冕仪的成像终端是一套工作在日冕绿线（Fe XIV 5303 埃）的高效成像系统和一套Hα成像系统。望远镜的有效口径的单谱线物镜为100mm，在5300埃的焦距为1490mm。丽江日冕仪的科学目标紧密结合当前天文研究热点问题：低层日冕大气中的等离子体运动、相关磁场重联过程和日冕波动现象。
以下是丽江日冕仪的观测数据目录，如有需要，可发送邮件至lyu@swjtu.edu.cn获取。（红色代表没有观测数据，黄色代表有部分观测数据，绿色代表有观测数据）
The Lijiang Coronagraph is a 10cm aperture internally occulted Lyot coronagraph jointly installed by Southwest Jiaotong University, Yunnan Astronomical Observatory and National Astronomical Observatory of Japan. It has been in operation for nearly 10 years. It is also the earliest ground-based coronagraph in China to conduct systematic observations.
The Lijiang Coronagraph Observatory is located within the Lijiang Astronomical Observation ( 3200m, 100°2′E, 26°42′N). The observatory has minimal air pollution and dust, resulting in clean and transparent skies with low sky brightness. Due to the high altitude, the atmosphere is thinner, leading to reduced extinction. Moreover, the observatory has good seeing. The climate at the Lijiang Astronomical Observation features a distinct dry season and rainy season. Apart from the rainy season (June to September), the remaining months of the year are characterized by abundant sunshine, low sky brightness, and favorable conditions for continuous observations. Through international collaboration, the installation and commissioning of the coronagraph were completed in 2013, conducted observations in October, and obtained a clear coronal structure.
The imaging terminal of the Lijiang Coronagraph consists of a high-efficiency imaging system operating in the coronal green line (Fe XIV 5303 Å) and an Hα imaging system. The effective aperture of the single-line objective lens of the telescope is 100 mm, with a focal length of 1490 mm at 5300 Å. The scientific objectives of the Lijiang Coronagraph align closely with current astronomical research hotspots, including plasma motions in the low coronal atmosphere, related magnetic reconnection processes, and coronal wave phenomena.
The observation data catalog of the Lijiang Coronagraph is provided below. If needed, you can request it via email at lyu@swjtu.edu.cn.
(Red indicates no observed data, yellow indicates partial observed data, and green indicates observed data.)
More recent data please directly link to the observation website:
http://sss.ynao.ac.cn/index.php?m=Index&a=lists&catid=75
