In an effort to optimize the night time utilizing the exquisite weather on Maunakea, CFHT has equipped its dome with vents and is now moving its Queued Scheduled Observing (QSO)1 based operations toward Signal to Noise Ratio (SNR) observing. In this new mode, individual exposure times for a science program are estimated using a model that uses measurements of the weather conditions as input and the science program is considered completed when the depth required by the scientific requirements are reached. These changes allow CFHT to make better use of the excellent seeing conditions provided by Maunakea, allowing us to complete programs in a shorter time than allocated to the science programs.
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Daniel Devost ; Claire Moutou ; Nadine Manset ; Billy Mahoney ; Todd Burdullis, et al.
SNR-based queue observations at CFHT
", Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 991015 (July 15, 2016); doi:10.1117/12.2231806; http://dx.doi.org/10.1117/12.2231806