Sentence:  In this model, the Lorimer burst, which was detected in three adjacent beams of the multibeam receiver, occupies a place between traditional FRB events and traditional <WSD>peryton</WSD> events and is believed to have occurred at some distance from the detector close to the Fresnel scale for Parkes, 20 km. 
Meaning of the word marked with <WSD> tags:  A radio signal which appears to come from outside the galaxy but is actually produced by terrestrial sources.