zenith 939 machine - People4Process
zenith 939 machine; OSA Determination of Extraterrestrial Solar Spectral . Flight date 1967Type of flightSolar zenith angle, deg.Altitude, kmAir mass.500 0.939 0.939 0.939 550 0.940 0.940 0.9. 80939 munich - MOC - Veranstaltungs- und Ordercenter München
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