Where did your username come from?

[AuroraSonicBoom]

Aurora (also credited as the SR-91 Aurora) is the popular name for a hypothesized American reconnaissance aircraft, believed by some to be capable of hypersonic flight at speeds of Mach 5+.

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On several occasions from June 1991 to June 1992, sonic booms were heard over Southern California. They were not produced by any officially acknowledged military flight (which are always careful to remain subsonic over urban areas). The booms were powerful enough to show up on the seismographs operated by the US Geological Service, and the times of arrival of the sound at various points allowed fairly accurate calculation of the course and speed of the aircraft responsible; the USGS had already demonstrated this by tracking incoming space shuttles. The aircraft were headed northeast, over Los Angeles and the Mojave Desert, towards either the Nellis Air Force Base in Nevada or the nearby Groom Lake base. The speeds involved ranged from Mach 3 to Mach 4.

And this was not the first 'hearing' of the sonic booms. I firmly believe I saw this aircraft and heard it's sonic booms when I lived in the states, around the time of the first sightings and auricular witnesses. I have detailed memories about seeing and hearing this aircraft. I've never used another nick, except sometimes the acronym ASB. I know, that's kinda boring, but I can identify with the name.