Meteorite material luminous efficiencies from ground testing of meteoroid entry

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S. Loehle, J. Vaubaillon, P. Matlovič, J. Tóth

Icarus
Available online 29 September 2023, 115817

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“The paper reports the determination of luminous efficiency values from ground testing of a comprehensive set of meteorite samples. The ground testing data is translated with commonly used ground to flight extrapolation analogies from atmospheric entry maneuver’s engineering into values of a night observation. This results in a meteor at an altitude of 80 km with a flight speed of 11.7 km/s of a 34.8 mm diameter spherical meteoroid. A method is developed to determine the total luminous efficiency in the bands U, B, V, R, and I from the radiance data and the measured mass loss. For the first time, a measurement of luminous efficiency became possible for known materials. The values itself are in the range of 0.01% to 1%, which is in the range of previous studies from meteor measurements.”

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