RT Journal Article
T1 Absolute Radiometric Calibration of TESS-W and SQM Night Sky Brightness Sensors
A1 Bará Viñas, Salvador
A1 Tapia, Carlos E.
A1 Zamorano, Jaime
K1 Night sky brightness
K1 Radiance
K1 Astronomical magnitudes
K1 Light pollution
AB We develop a general optical model and describe the absolute radiometric calibration of the readings provided by two widely-used night sky brightness sensors based on irradiance-to-frequency conversion. The calibration involves the precise determination of the overall spectral sensitivity of the devices and also the constant G relating the output frequency of the light-to-frequency converter chip to the actual band-weighted and field-of-view averaged spectral radiance incident on the detector (brightness). From these parameters, we show how to define a rigorous astronomical absolute photometric system in which the sensor measurements can be reported in units of magnitudes per square arcsecond with precise physical meaning.
PB MDPI
YR 2019
FD 2019
LK http://hdl.handle.net/10347/21346
UL http://hdl.handle.net/10347/21346
LA eng
NO Bará, S.; Tapia, C.E.; Zamorano, J. Absolute Radiometric Calibration of TESS-W and SQM Night Sky Brightness Sensors. Sensors 2019, 19, 1336
DS Minerva
RD 27 abr 2026