Abstract
On August 31, 2015, the fiery reentry of the Soviet Cosmos 1315 was sighted over the Hawaiian Islands. The supersonic reentry of the satellite was detected with both traditional infrasound arrays located on the Big Island, Maui and Kauai, and with iPods using the RedVox infrasound recorder on the Big Island and Oahu. We apply array-processing techniques to reconstruct the trajectory of the satellite. In addition, we have developed a standardized multi-resolution framework that uses the Gabor limit to define a scaled set of frequencies and windows for transient feature extraction. Metrics are evaluated over a set of standardized log-scaled time windows in order to characterize waveforms. I describe a method to detect transients in infrasonic arrays with low signal to noise where beam forming is not possible, and apply it to the analysis of signals produced by the supersonic Cosmos 1315 reentry.
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