sgp4::ke

pub const ke: f64 = 7.43669161e-2

$k_e = 7.43669161 \times 10^{-2}$ Orbital constant for Earth defined as $\sqrt{GM_{\oplus}}$ where $G$ is Newton’s universal gravitational constant and $M_{\oplus}$ is the mass of the Earth. Units: $(\frac{\mathrm{Earth\ radii}}{\mathrm{minute}})^{\frac{3}{2}}$