ffmpeg plus still images are a cool way to make an animation. A very, very long time ago I did the same with EVE Online sovereignty maps that got updated once a day. (it was back in the Band of Brother vs Goonswarm days, so ancient history)
The ABI on GOES-16 is not exactly like a camera. Instead it collects light across different spectral bands and stores them independently. So when you see a color image from GOES, it's actually a composite of specific bands. I don't know how NESDIS (source of the imagery here) does it, but a common way to produce "true color" imagery for this class of satellites is to superimpose their red band, their blue band, and an interpolated "green" band.
The ABI also collects shortwave infrared light, which is still possible to observe at night. Since the satellite's normal use is for atmospheric weather observations, it's common to show the SWIR bands at night so that that clouds are still visible.
Yes, the daytime imagery does not use the SWIR band which is why it looks totally dark. Here is an eclipse image with the SWIR band: https://i.postimg.cc/zf6yHXSy/IMG-5031.png
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[ 3.9 ms ] story [ 71.7 ms ] threadFor anyone else looking for the link.
https://youtu.be/_mnL83o5tBY?si=3xnzJd6eqH2E_ulS
Obvious now that I've seen it.
Great work!
Why is the night sky (no direct light) showing clouds as bright white objects but the solar eclipse is basically a totally black hole?
How could that even work? The side facing away from the sun should be just as dark as the centre of the eclipse.
The ABI also collects shortwave infrared light, which is still possible to observe at night. Since the satellite's normal use is for atmospheric weather observations, it's common to show the SWIR bands at night so that that clouds are still visible.