Orbit Equation Formula

Equation for calculate orbit equation is,

$$r=\frac{l^2}{m^2·\gamma }·\frac{1}{1+e·\cos \theta }$$

l = angular momentum of the orbiting body about the central body

m = orbiting body mass

γ = for gravitation,it is the standard gravitational parameter

e = eccentricity of the orbit

θ = angle that separation distance makes with the axis of periapsis

r = separation distance between the two bodies