orbix.equations.phase

Exoplanet phase functions.

Functions

lambert_phase_exact(cosbeta, sinbeta)	Exact Lambert phase function using an arccos and sqrt call.
lambert_phase_poly(c)	Approximate the lambert phase function based on just the cos(beta) value.

Module Contents

orbix.equations.phase.lambert_phase_exact(cosbeta, sinbeta)

Exact Lambert phase function using an arccos and sqrt call.

Parameters:

• cosbeta – The cosine of the phase angle.

• sinbeta – The sine of the phase angle.

Returns:

The Lambert phase function value, clipped to be non-negative.

orbix.equations.phase.lambert_phase_poly(c)

Approximate the lambert phase function based on just the cos(beta) value.