Sutton infrasound
Antrim infrasound
I soon found similar recordings at Antrim, but louder and earlier and with higher frequencies still present. The spacing between booms was nearly identical. This supported a single location for the source and that for a meteor the sounds were from the breakup and not sonic booms.
All the other speculation fell by the wayside and pretty much all that was left was exploded meteor, likely burning up before reaching the ground.