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These screenshots show two events captured yesterday

The first is of interest because the tail echo? was seen by all 5 receivers so was not directional? or linearly polarised? ... the beacon illuminates the region where meteors burn up with Right Hand Circular polarisation RHCP.

The second image shows a tail echo seen by the Norman Lockyer Observatory and NW Hampshire but only with vertical polarisation indicating that this echo was linear polarised.

When a signal is reflected from a plane? ( mirror like ) surface circularity is maintained but reversed from Right Hand to Left Hand. So in the second image it appears that some RHCP energy is being collected by a cylindrical or wire like reflector which radiates the energy with linear polarisation. This tells us something of the shape and dimensions of the reflecting region. When a linear antenna receives a CP signal there is a loss of the order of 3dB compared to using a correctly polarised CP antenna for receive.

Brian