Abstract
A cavity type absolute radiometer was flown on Spacelab 1 in December 1983. We obtain a value of the solar constant of 1361.5 W m−2 with an estimated accuracy of ±2.3 W m−2 or 0.17%. When comparing this with other recent determinations, we find discrepancies which we consider indicative of metrological problems in present day absolute radiometry.
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Crommelynck, D.A., Brusa, R.W. & Domingo, V. Results of the solar constant experiment onboard Spacelab 1. Sol Phys 107, 1–9 (1986). https://doi.org/10.1007/BF00155336
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DOI: https://doi.org/10.1007/BF00155336