obs_to_rest# madcubapy.utils.obs_to_rest(obs_freq, radial_velocity, doppler_convention='radio')[source]# Convert observed frequency to rest frequency. Parameters: obs_freqQuantityObserved frequency. radial_velocityQuantityRadial velocity of the source relative to the observer. doppler_convention{“radio”, “relativistic”}, default: “radio”The Doppler convention to use. Returns: rest_freqQuantityRest frequency.