Before the event on the 15th of August 2021 to show what's what for the animated gif. The moon Io left the sensor's ROI when the time came to start the run of videos. Seeing was poor to average from the Mandurah Peel Region, Western Australia. Images are correctly orientated.
My animated gif below of the 5 spot (2 moon, 3 moon shadow) on the face of Jupiter with Jovian moon eclipse. I just managed to get the 5 spots at the start, then towards the end of the gif you can see the lighter coloured moon which is Europa from bottom right of Jupiter move up to the larger darker grey'ish coloured Moon which is Ganymede and pass under it, then come out the other side as a darker colour which would be in the shadow of Ganymede. While this is happening these two particular moon shadows join together.|
The link below to the animated gif was made from 30 x 2 minute videos with roughly a minute in between to re-focus.
https://i.postimg.cc/tJ7QN7r0/Jupite...on-Eclipse.gif
Captured in SharpCap, aligned and stacked in AutoStakkert, wavelets and RGB Balance applied in RegiStax and resized, with further colour correction in PaintDotNet. Animated gif made on eazygif.com website but I had to manually make/copy a reverse sequence of frames to make the forverce animation with 3 each of the first and last frames in the sequence for the slight pause at the start and the end.
ZWO ASI224MC
Saxon 8" Maksutov Cassegrain
Sky-Watcher AZ-EQ6 Pro
Subzero cool. Bravo! 
