STEREO Science Center Daily Browse Images and Movies

Daily browse images and movies from each of the STEREO SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation) telescopes (EUVI, COR1, COR2, HI1, HI2) are available on the STEREO Science Center (SSC) website. Images are produced initially from the low resolution real time space weather beacon data, and the browse page for the current day is updated every 15 minutes if new data are available. The initial low resolution real time images are replaced with the full resolution versions once they are available, typically about three days later. Large gaps in time are filled in with beacon images if possible. Daily context images from SDO/AIA, the Mauna Loa K-Coronagraph, and SOHO/LASCO/C2 are also included. (Earlier dates substitute SOHO/EIT and Mauna Loa MkIV.)

JPEG images are available at sizes ranging from 128x128 to 1024x1024 or 2048x2048, depending on the telescope. Running difference images at the same sizes are also created for the coronagraph telescopes at the following time differences: COR1: 20 minutes, COR2: 1 hour, and HI1: 2 hours. HI2 processed images are inherently running differences with a time difference of 2 hours. If enough images are available, then daily MPEG-2 movies are generated at 256x256 and 512x512 resolutions from both the direct and running difference images.

Upon entering the daily browse tool, one is initially taken to the browse page for the most recent day. From there, one can navigate by day, week, or solar rotation (28 days). One can also enter in a specific date in the format YYYYMMDD, e.g. 20161103 for November 3, 2016. It is also possible to move back and forth between the pages for browse images and for in situ browse plots for any given date.

日地关系天文台（Solar TErrestrial RElations Observatory, STEREO）的SECCHI（Sun Earth Connection Coronal and Heliospheric Investigation，日地联系日冕与日球层探测）望远镜（包含EUVI、COR1、COR2、HI1、HI2）所生成的每日浏览图像与影片，均可在STEREO科学中心（STEREO Science Center, SSC）官网获取。此类图像最初由低分辨率实时空间天气信标数据生成；若有新数据可用，当日浏览页面将每15分钟更新一次。初始低分辨率实时图像将在完整分辨率数据可用后被替换，该过程通常在数据获取后约3天完成。若条件允许，将使用信标图像填补时间序列中的大面积数据空缺。数据集同时包含来自太阳动力学天文台/大气成像组件（Solar Dynamics Observatory/Atmospheric Imaging Assembly, SDO/AIA）、莫纳罗亚K日冕仪（Mauna Loa K-Coronagraph）以及太阳与日球层天文台/大角度分光日冕仪C2（Solar and Heliospheric Observatory/Large Angle and Spectrometric Coronagraph C2, SOHO/LASCO/C2）的每日背景图像。（对于更早的日期，则替换为太阳与日球层天文台/EIT（SOHO/EIT）与莫纳罗亚MkIV设备的数据）。

JPEG格式图像的分辨率可选128×128、1024×1024或2048×2048，具体取决于所用望远镜。针对日冕仪类望远镜，数据集还生成了相同分辨率的逐帧差图像，对应的时间差参数如下：COR1为20分钟、COR2为1小时、HI1为2小时。HI2的处理图像本质上为时间差2小时的逐帧差图像。若图像数据充足，将基于原始图像与逐帧差图像生成分辨率为256×256及512×512的每日MPEG-2格式影片。

进入每日浏览工具后，用户将默认跳转至最新日期的浏览页面。用户可在此按日期、周或太阳自转周期（28天）进行导航，也可输入格式为YYYYMMDD的指定日期，例如以20161103代表2016年11月3日。此外，用户还可在任意指定日期的浏览图像页面与原位观测浏览绘图页面之间切换。