I looked at the GOES-17 full-disk view of Earth during sunrise across the Americas on the morning of 7 Oct 2018. It was a beautiful way to start the day. The video on the site looped repeatedly while I watched showing images taken every 15 min.
Something curious caught my eye in the Amazon Basin. I screen-captured this short video. Watch the Amazon region for movement of bright light up-river. It is sunglint. Reflection of sunlight off the water surface into the GOES satellite optics.
Using the tools on the site, I zoomed into the Amazon Basin for a better look. Here it is from the mouth at the Atlantic to the west toward the Andes. Not much of the river is visible.
Watch what happens when the same region is viewed at 15 min intervals in this video loop. I stepped the video forward over a 3 hour interval, rewound, and repeated.
Here is a close-up of the river and tributaries at the middle of the basin. Amazing what you can see with the new GOES weather satellites.
If you want to explore more from a GOES weather satellite. Here is a link to the image viewer. Note the tabs across the page. Try them out. The U.S. Regions tab offers closer views and animations. Go ahead and have some fun. You can’t break anything.