Luminous efficiencies as derived in this work plotted over the event’s corresponding meteoroid’s mass with fit through the data in log–log space. Blue dots: values of τ. Green line: equal-weighted least-squares fit (EWLS) applied to the data. Red dashed line: weighted least-squares fit (WLS) applied to the data; the method weights the values by the relative error of the value. Orange dotted line: results found by Čapek et al. (2019). Blue dashed-dotted line: results found by Subasinghe & Campbell-Brown (2018).