Lyrids - 23 April 2023@06:45:46 Echo

[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 14719 times

[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.

[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