Struct ET 

pub struct ET;

NAIF/SPICE Ephemeris Time — compatibility marker.

ET exists so users interchanging values with NAIF/CSPICE can keep the scale label distinct in their typed code. The current implementation routes ET ↔ {TT, TDB, …} through the same Fairhead–Bretagnon model used for TDB: numerically Time<ET> is identical to Time<TDB> within the documented model accuracy (~10 µs over 1600–2200 TT).

Treat this as a SPICE-compatibility label, not a new physical realization. A future high-precision SPICE-equivalent ET implementation can replace the conversion without breaking callers that already use Time<ET> versus Time<TDB>.

Trait Implementations

impl Clone for ET

fn clone(&self) -> ET

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<SrcF: TimeFormat> ConversionTarget<ET, SrcF> for UT1

type Output = Time<UT1, SrcF>

fn try_convert(src: Time<ET, SrcF>) -> Result<Self::Output, ConversionError>

impl<SrcF: TimeFormat> ConversionTarget<UT1, SrcF> for ET

type Output = Time<ET, SrcF>

fn try_convert(src: Time<UT1, SrcF>) -> Result<Self::Output, ConversionError>

impl Debug for ET

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

Formats the value using the given formatter.

impl Hash for ET

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ET

fn cmp(&self, other: &ET) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ET

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

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

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 PartialOrd for ET

fn partial_cmp(&self, other: &ET) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Scale for ET

const NAME: &'static str = "ET"

Display name of the scale. Used by Debug on Time.

impl ContinuousScale for ET

impl CoordinateScale for ET

impl Copy for ET

impl Eq for ET

impl StructuralPartialEq for ET