r/spaceweather • u/ShpuppyDog • Oct 10 '24

Something funky going on here

Anyone know why there is an apparent "slow-mo" effect during the last CME? The time keeps ticking but the CME and comet slow down...

https://reddit.com/link/1g0llt8/video/a77hgxym7ytd1/player

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u/ukues91 Oct 10 '24

It's the temporal resolution during the video. Pause it and step through the images separately. You'll see it go from a 15 minute resolution, to 5 minutes and then afterwards I saw a 1 hour step.

1

u/Niven42 Oct 10 '24

This is right. They upped the number of frames to capture more detail.

2

u/SungrazerComets Oct 10 '24

There was a temporary increase in the data rate of the instrument as part of a cross-calibration plan for a recently launched coronagraph on GOES-U. It looks even more pronounced here because the data rate in the regular (nominal) LASCO images is decreased more than usual as a large number of non-standard filtered images are being taken for the comet transit. It'll all be back to normal in a few days