#[derive(Debug, Clone, Copy, PartialEq)]
pub struct RelaySatellite {
    pub name: &'static str,
    pub halo_orbit_period_days: f64,
    pub far_side_coverage: f64,
}

pub fn europa_relay() -> RelaySatellite {
    RelaySatellite {
        name: "Europa Relay",
        halo_orbit_period_days: 3.55,
        far_side_coverage: 0.70,
    }
}
