Blind Detection of Ultra-faint Streaks with a Maximum Likelihood Method

2016/09/22 by Dawson, William A., Schneider, Michael D., Kamath, Chandrika · 1 citation
#FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Space Physics (physics.space-ph)

paper · doi:10.48550/arxiv.1609.07158

Abstract

We have developed a maximum likelihood source detection method capable of detecting ultra-faint streaks with surface brightnesses approximately an order of magnitude fainter than the pixel level noise. Our maximum likelihood detection method is a model based approach that requires no a priori knowledge about the streak location, orientation, length, or surface brightness. This method enables discovery of typically undiscovered objects, and enables the utilization of low-cost sensors (i.e., higher-noise data). The method also easily facilitates multi-epoch co-addition. We will present the results from the application of this method to simulations, as well as real low earth orbit observations.

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