Struct Kernel 

pub struct Kernel {
    pub name: String,
    pub start_jd: f64,
    pub end_jd: f64,
    /* private fields */
}

One loaded kernel and the Julian-date span that all its segments cover (a chart needs every body, so the usable span is their intersection).

Fields

name: String

Label used in error messages and diagnostics, e.g. “de440s.bsp”.

start_jd: f64

First Julian date (TDB) every segment covers.

end_jd: f64

Last Julian date (TDB) every segment covers.

Implementations

impl Kernel

pub fn new(name: impl Into<String>, spk: Spk) -> Result<Self, SpkError>

Wrap a loaded SPK file; fails if it has no segments.

pub fn covers(&self, jd: f64) -> bool

Whether every segment covers Julian date jd.

pub fn contains(&self, code: i32) -> bool

Whether the kernel has a segment for this body (Skyfield code in ephemeris).