airglow_scattering¶
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skysim.airglow.airglow_scattering(z)[source]¶ Calculate net Rayleigh and Mie scattering of airglow emission.
Use equations (24) and (25) of Noll 2012 to approximate the net effect of scattering as an optical depth multiplier. Negative values are possible and indicate that scattering of indirect airglow into the line of sight exceeds scattering of direct airglow out of the line of sight.
- Parameters
- zfloat or array
Zenith angle(s) in degrees.
- Returns
- tuple
Tuple (fR, fM) giving the net optical depth multipliers for Rayleigh and Mie scattering, respectively. The components fR, fM will be floats or arrays matching the input z shape.