fn main() {
let jv = ioss::observation::jupiter_view::JupiterView::sub_jupiter_default();
println!("Jupiter apparent: {} deg", jv.apparent_diameter_deg);
println!("Visible: {}", jv.is_visible());
println!(
"Jupitershine gain: {:.3}",
ioss::observation::jupiter_view::jupitershine_gain(jv, 0.63)
);
let nav = ioss::observation::navigation::NavigationSolution::autonomous_surface_fix();
println!("Nav robust: {}", nav.is_robust());
}