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aTmcam: a simple atmospheric transmission monitoring camera for sub 1% photometric precision
Ground-based and Airborne Instrumentation for Astronomy IV
Traditional color and airmass corrections can typically achieve ~0.02 mag precision in photometric observing conditions. A major limiting factor is the variability in atmospheric throughput, which changes on timescales of less than a night. We present preliminary results for a system to monitor the throughput of the atmosphere, which should enable photometric precision when coupled to more traditional techniques of less than 1% in photometric conditions. The system, aTmCam, consists of a set ofdoi:10.1117/12.924792 fatcat:nwlpfrmzena63hug7ptrrr6fny