Here's a [tutorial] of how to make an animation of the moon's shadow with GOES imagery during The Great American Eclipse of 2017:
> Here is one of the coolest examples that I have created using IDL in a while. For this blog post, I'm going to walk through how I created an animation of the Moon's shadow during the Great American Total Solar Eclipse using several different technologies for accessing, downloading, and visualizing the data.
The is on Harris Geospatial Solutions' Facebook page.
[tutorial]: http://www.harrisgeospatial.com/Learn/Blogs/Blog-Details/TabId/2716/ArtMID/10198/ArticleID/21275/The-Eclipse-Tracking-where-the-Moons-shadow-GOES.aspx?utm_source=twitter&utm_medium=social&utm_campaign=blog "The Eclipse: Tracking where the Moon’s shadow GOES"
: https://www.facebook.com/HarrisGeospatialSolutions/videos/10155456330801006/ "Our IDL 8.6.1 created an animation of the 2017 solar eclipse"