Event-based camera for meteor science
Résumé
Meteor observations aim to produce the astro-photometric data to derive their orbit and light curve, from which the structure, age and origin of meteoroids can be studied. One limitation is the data acquisition rate, typically restricted to 30 fps for common video cameras. Event based cameras (EBC) have the potential to overcome this difficulty by providing high rate (> 1000 Hz) light change information at the pixel level. The goal of this study is to explore the performances of classic (CC) vs event based camera (EBC) and their potential for meteor science. An observation campaign was organised during the 2024 Geminids meteor shower involving EBC and video cameras. Five meteor events were detected by both systems. Light curve (from CC data) and equivalent lightcurve (from EBC data) were derived. The EBC used in this experiment proves to be more sensitive than CC for moving objects. Its limited capabilities prevented us from deriving the astro-photometry information needed for a full exploitation for meteor science. We therefore recommend to use more capable EBC in the future for such a purpose. Nevertheless, EBC in general appear to be a very promising tool for meteor sciences.
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