Function sgp4 

pub fn sgp4<T: TimeLike>(
    sgp4source: &mut impl SGP4Source,
    tm: &[T],
) -> Result<SGP4State>

Run Simplified General Perturbations (SGP)-4 propagator on Two-Line Element Set to output satellite position and velocity at given time in the “TEME” coordinate system

This is a shortcut to run sgp4_full with the WGS84 gravity model and IMPROVED ops mode

A detailed description is here

Arguments

• sgp4source - The source of SGP4 data, typically a TLE but could be a orbital mean-elements message (OMM) or other source implementing the SGP4Source trait. Note: this is a mutable reference SGP4 states are cached in the source object after first call to avoid re-initialization on subsequent calls
• tm - The time at which to compute position and velocity Input as a slice for convenience. satkit::TimeLike trait is used for time input, can be satkit::Instant or if chrono feature is enabled, chrono::DateTime<Utc>

Return

Result object containing either an OK value containing a SGP4State struct with position (m) and velocity (m/s) Nx3 matrices (where N is the nuber of input times in the slice) and err codes at each time, or an Err value containing a description of the error

Note:

This is a shortcut to run sgp4_full with the WGS84 gravity model and IMPROVED ops mode

Example

// Compute the Geodetic position of a satellite at
// the TLE epoch time

use satkit::TLE;
use satkit::sgp4::{sgp4, GravConst, OpsMode};
use satkit::frametransform::qteme2itrf;
use satkit::itrfcoord::ITRFCoord;

let line0: &str = "0 INTELSAT 902";
let line1: &str = "1 26900U 01039A   06106.74503247  .00000045  00000-0  10000-3 0  8290";
let line2: &str = "2 26900   0.0164 266.5378 0003319  86.1794 182.2590  1.00273847 16981   9300.";
let mut tle = TLE::load_3line(&line0.to_string(),
    &line1.to_string(),
    &line2.to_string()
    ).unwrap();

let tm = tle.epoch;

// SGP4 runs on a slice of times
let result = sgp4(&mut tle,
    &[tm]
    ).unwrap();

// rotate position to ITRF and create ITRFCoord
let pos = numeris::vector![result.pos[(0,0)], result.pos[(1,0)], result.pos[(2,0)]];
let pitrf = qteme2itrf(&tm) * pos;
let itrf = ITRFCoord::from_slice(pitrf.as_slice()).unwrap();
println!("Satellite position is: {}", itrf);