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Meteor echoes of the day


 

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An early start enabled me to capture some interesting echoes this morning while working on other things. You can capture your own observations at

This interesting echo is more or less omni directional and un-polarised. Note the differences in Doppler shifts with Norman Lockyer centred with positive Doppler, NW Hampshire centred with Zero Doppler and Armagh with only slight positive Doppler.??

The spread of Doppler is most likely due to wind shear in the region through which the meteor passed.

This echo is clearly directional and polarised as it was not seen by Armagh or by NW Hampshire with vertical polarisation.? It is possible that the direction in which the receive antennas point accounts for why some receivers see an echo and others don't but this is unlikely as all the antennas cover most of the region illuminated by the beacon and the cut off is gradual.

Brian