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Lyrids - 23 April 2023@06:45:46 Echo
Posted: Thu Apr 27, 2023 11:40 am
by johnberman
Echo from GB3MBA thoughts on what it shows appreciated "meteor fragmentation or a meteor passing through different layers of ionisation within the ionosphere maybe ?"
- Screenshot-2023-04-23-064546.jpeg (247.49 KiB) Viewed 14723 times
Re: Lyrids - 23 April 2023@06:45:46 Echo
Posted: Thu Apr 27, 2023 8:36 pm
by G3ZJO
This looks to be a good example of an epsilon reflection. The meteor has left a vertical ionised trail which has been swept HF, +ve Doppler and LF, -ve Doppler by wind shear in the ionosphere.
Re: Lyrids - 23 April 2023@06:45:46 Echo
Posted: Sat Apr 29, 2023 11:45 am
by Aut0Star
Epsilon reflection is not a term I have heard before, however the following link gives and explanation:
https://www.zooniverse.org/projects/zoo ... /about/faq
Scroll about half way down the page. Thanks G3ZJO for posting.
Mike Gaydon