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EopParameters

celestial_coords::eop::record

Struct EopParameters

pub struct EopParameters {
    pub mjd: f64,
    pub x_p: f64,
    pub y_p: f64,
    pub ut1_utc: f64,
    pub lod: f64,
    pub dx: Option<f64>,
    pub dy: Option<f64>,
    pub xrt: Option<f64>,
    pub yrt: Option<f64>,
    pub s_prime: f64,
    pub flags: EopFlags,
}

Fields§

§mjd: f64§x_p: f64§y_p: f64§ut1_utc: f64§lod: f64§dx: Option<f64>§dy: Option<f64>§xrt: Option<f64>§yrt: Option<f64>§s_prime: f64§flags: EopFlags

Implementations§

impl EopParameters

pub fn compute_s_prime(&mut self)

Computes the TIO locator s’ using the IAU 2000 linear approximation.

s’ ≈ -47 µas/century × t, where t is Julian centuries from J2000.0. Result is in radians (matching IAU SOFA convention).

Note: For maximum precision, use compute_s_prime_jd() with 2-part JD.

pub fn compute_s_prime_jd(&mut self, tt1: f64, tt2: f64)

Computes s’ from 2-part TT Julian Date for maximum precision.

The 2-part JD allows for precision-preserving arithmetic when computing time intervals from J2000.0.

pub fn compute_era(&self) -> CoordResult<f64>

pub fn corrected_cip_x(&self, x_iau: f64) -> f64

Returns CIP X coordinate corrected by dX offset (if available), in radians.

pub fn corrected_cip_y(&self, y_iau: f64) -> f64

Returns CIP Y coordinate corrected by dY offset (if available), in radians.

Trait Implementations§

impl Clone for EopParameters

fn clone(&self) -> EopParameters

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for EopParameters

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

Formats the value using the given formatter. Read more

impl Display for EopParameters

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

Formats the value using the given formatter. Read more

impl PartialEq for EopParameters

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · 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.

impl StructuralPartialEq for EopParameters

Auto Trait Implementations§

impl Freeze for EopParameters

impl RefUnwindSafe for EopParameters

impl Send for EopParameters

impl Sync for EopParameters

impl Unpin for EopParameters

impl UnsafeUnpin for EopParameters

impl UnwindSafe for EopParameters

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.