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Elements

sidereon_core::orbit

Struct Elements 

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pub struct Elements {
Show 13 fields
    pub model: Model,
    pub epoch: CalendarEpoch,
    pub a_m: f64,
    pub e: f64,
    pub i_rad: f64,
    pub raan_rad: f64,
    pub raan_rate_rad_s: f64,
    pub raan_rate_j2_rad_s: f64,
    pub arg_lat_rad: f64,
    pub mean_motion_rad_s: f64,
    pub h: f64,
    pub k: f64,
    pub arg_perigee_rad: f64,

}
Expand description

The fitted mean elements plus the kept J2 seed.

Lengths are meters, angles radians, rates radians-or-meters per second. The raan_rate is the fitted value; raan_rate_j2 is the J2 nodal-regression seed it started from (see the module documentation).

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§model: Model

Which model these elements belong to.

§epoch: CalendarEpoch

Reference epoch t0; all linear angle advances are measured from here.

§a_m: f64

Semi-major axis a in meters.

§e: f64

Eccentricity. 0.0 for the circular model; sqrt(h² + k²) for the eccentric model.

§i_rad: f64

Inclination i in radians.

§raan_rad: f64

Right ascension of the ascending node at t0, radians.

§raan_rate_rad_s: f64

Fitted nodal regression rate, radians per second.

§raan_rate_j2_rad_s: f64

J2 nodal-regression seed for raan_rate, radians per second.

§arg_lat_rad: f64

Argument of latitude at t0, radians. For the circular model this is arg_lat0; for the eccentric model it is L0 = ω + M0, the mean argument of latitude at epoch (equal to arg_lat0 at e = 0).

§mean_motion_rad_s: f64

Mean motion n, radians per second.

§h: f64

Eccentricity vector component h = e·sin ω. Zero for the circular model.

§k: f64

Eccentricity vector component k = e·cos ω. Zero for the circular model.

§arg_perigee_rad: f64

Argument of perigee ω = atan2(h, k), radians. Zero for the circular model (where it is undefined).

Trait Implementations§

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impl Clone for Elements

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fn clone(&self) -> Elements

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for Elements

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impl Debug for Elements

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for Elements

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fn eq(&self, other: &Elements) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for Elements

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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