Function lupnt::Illumination

Function Documentation

Real lupnt::Illumination(const Vec3 &r, const Vec3 &r_sun, Real R_body)

Computes the illumination factor for solar radiation pressure.

Parameters:
  • r – Position vector of the spacecraft relative to the occulting body.

  • r_sun – Position vector of the Sun relative to the occulting body.

  • R_body – Radius of the occulting body.

Returns:

Real Illumination factor (0 to 1).