File Iapetus.hpp

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#pragma once

#include <mp-units/systems/angular.h>
#include <mp-units/systems/iau.h>
#include <mp-units/systems/si.h>

#include <units/units.hpp>

#include <astro/astro.fwd.hpp>
#include <astro/systems/CelestialBody.hpp>
#include <astro/types/typedefs.hpp>

namespace astrea {
namespace astro {
namespace planetary_bodies {

static const CelestialBodyParameters DEFAULT_IAPETUS_PARAMS{
    .name          = "Iapetus",
    .parent        = CelestialBodyId::SATURN,
    .type          = CelestialBodyType::MOON,
    .referenceDate = Date("2000-01-01 12:00:00"),
    .mu = GravParam(153.94 * mp_units::pow<3>(mp_units::si::unit_symbols::km) / mp_units::pow<2>(mp_units::si::unit_symbols::s)),
    .mass              = Mass(0.00231 * (mp_units::mag_power<10, 24> * mp_units::si::unit_symbols::kg)),
    .equitorialRadius  = Distance(765.0 * mp_units::si::unit_symbols::km),
    .polarRadius       = Distance(762.0 * mp_units::si::unit_symbols::km),
    .crashRadius       = Distance(765.0 * mp_units::si::unit_symbols::km),
    .sphereOfInfluence = Distance(3.67746912467e-04 * mp_units::iau::unit_symbols::au),
    .j2                = Unitless(0.0 * mp_units::one),
    .j3                = Unitless(0.0 * mp_units::one),
    .axialTilt         = Angle(26.766 * mp_units::angular::unit_symbols::deg),
    .rotationRate      = AngularRate(79.690094078583286 * mp_units::angular::unit_symbols::deg / mp_units::non_si::day),
    .siderealPeriod    = Time(4.517500 * mp_units::non_si::day),
    .semimajorAxis     = Distance(527.04e3 * mp_units::si::unit_symbols::km),
    .eccentricity      = Unitless(0.0010 * mp_units::one),
    .inclination       = Angle(0.35 * mp_units::angular::unit_symbols::deg),
    .rightAscension    = Angle(351.042 * mp_units::angular::unit_symbols::deg),
    .longitudeOfPerigee     = Angle(232.661 * mp_units::angular::unit_symbols::deg),
    .meanLongitude          = Angle(412.44 * mp_units::angular::unit_symbols::deg),
    .semimajorAxisRate      = InterplanetaryVelocity(0.0 * mp_units::si::unit_symbols::km / JulianCentury),
    .eccentricityRate       = BodyUnitlessPerTime(0.0 * mp_units::one / JulianCentury),
    .inclinationRate        = BodyAngularRate(0.0 * mp_units::angular::unit_symbols::deg / JulianCentury),
    .rightAscensionRate     = BodyAngularRate(3616878.77 * mp_units::angular::unit_symbols::deg / JulianCentury),
    .longitudeOfPerigeeRate = BodyAngularRate(10841361.7 * mp_units::angular::unit_symbols::deg / JulianCentury),
    .meanLongitudeRate      = BodyAngularRate(10489285497.13 * mp_units::angular::unit_symbols::deg / JulianCentury)
};

class Iapetus : public CelestialBody {

  public:
    constexpr Iapetus() :
        CelestialBody(DEFAULT_IAPETUS_PARAMS)
    {
    }

    ~Iapetus() = default;

    static constexpr CelestialBodyId get_id() { return CelestialBodyId::IAPETUS; };
};

} // namespace planetary_bodies
} // namespace astro
} // namespace astrea