Perytons were observed at the Parkes Observatory and Bleien Radio Observatory. After the discovery of the first FRB in 2007, Dr. Burke searched through old telescope data looking for similar signals. She found what she was looking for, with a small difference. The 16 signals that she found seemed to fill the entire patch of the sky visible to the telescope. The lack of directionality in the new signals led Burke to the considerations that the signals were man-made and of earth. Between 1998 and 2015, old data showed 46 perytons that were identified at the Parkes Observatory. On June 23, 1998, 16 perytons were detected at that same location within 7 minutes. In January 2015, 3 perytons were detected at the Parkes Observatory. As of 2015, 25 perytons had been the subject of scientific publications.