refractive_index# pycraf.atm.refractive_index(temp, press, press_w)[source]# Refractive index according to ITU-R P.453-12. Parameters: tempQuantityAir temperature [K] pressQuantityTotal air pressure [hPa] press_wQuantityWater vapor partial pressure [hPa] Returns: n_indexQuantityRefractive index [dimless]