Auroral optical monitoring observation data at Syowa Station: Proton Auroral Imager 2 (PAI-2) data in 2020

Auroral optical observation data obtained with the Proton Auroral Imager 2 (PAI-2) at Syowa Station, Antarctica in 2020. Specifications of the PAI-2 are as follows | 1. Filter center wavelength: 480.5 nm | 2. Filter FWHM: 3.0 nm | 3. Camera: back illuminated cooled CCD camera (Hamamatsu C4742-98) | 4. Lens: Fisheye-Nikkor 16mm F2.8 | 5. Exposure: 7 sec | 6. Interval: 15 sec | 7. Original image resolution: 64x64 pixels, 12bit/pixel | 8. Original image format: TIF | 9. Quick Look image resolution: 720x480 | 10. Quick Look image format: JPG2020年于南极昭和站（Syowa Station）利用质子极光成像仪2号（Proton Auroral Imager 2，PAI-2）获取的极光光学观测数据。PAI-2的技术参数如下：1. 滤光片中心波长：480.5 nm；2. 滤光片半高全宽（Full Width at Half Maximum，FWHM）：3.0 nm；3. 相机：背照式制冷电荷耦合器件（Charge Coupled Device，CCD）相机（滨松C4742-98，Hamamatsu C4742-98）；4. 镜头：鱼眼尼克尔16mm F2.8（Fisheye-Nikkor 16mm F2.8）；5. 曝光时长：7秒；6. 拍摄间隔：15秒；7. 原始图像分辨率：64×64像素，每像素12比特；8. 原始图像格式：TIF；9. 快速预览图像分辨率：720×480；10. 快速预览图像格式：JPG