Satellite tracking TUI using ratatui
technoduck.me
1use std::f64::consts::PI;
2
3use chrono::{DateTime,Utc};
4use serde::{Deserialize,Serialize};
5
6
7pub fn earth_rotation_angle(t_u:f64) -> f64 {
8 //returns radians
9 2.0*PI*(0.7790572732640 + 1.00273781191135448*t_u) % std::f64::consts::TAU
10}
11
12
13//to be deleted dont think i need it much longer?
14pub async fn get_celerak_data() -> (Option<sgp4::Constants>,Option<DateTime<Utc>>) {
15 let resp = reqwest::get("https://celestrak.org/NORAD/elements/gp.php?GROUP=stations&FORMAT=json").await.unwrap();
16
17 let element_vec:Vec<sgp4::Elements> = resp.json().await.unwrap();
18
19
20 let epoch = &element_vec[0].datetime.and_utc();
21
22 let iss_constant = sgp4::Constants::from_elements(&element_vec[0]).unwrap();
23
24 (Some(iss_constant),Some(*epoch))
25
26}
27
28
29// i should be using the geoid crate but this is good enough for now
30pub fn polar_loc_transformer(loc: [f64;3]) -> [f32;2] {
31 let theta = -((loc[2]/ (loc[0].powi(2) + loc[1].powi(2) + loc[2].powi(2)).powf(0.5)).acos() - PI/2.0);
32 let phi = loc[1].signum() * (loc[0]/(loc[0].powi(2) + loc[1].powi(2)).powf(0.5)).acos();
33
34 [(phi*180.0/PI) as f32, (theta*180.0/PI) as f32]
35
36
37}
38
39
40
41#[derive(Debug,Clone,PartialEq,Deserialize,Serialize)]
42pub struct Location {
43 pub latitude: String,
44 pub longitude: String
45}
46
47#[derive(Debug,Clone,Deserialize,Serialize)]
48pub struct FLocation {
49 pub latitude: f32,
50 pub longitude: f32
51}
52
53
54
55
56impl From<Location> for FLocation {
57 fn from(value: Location) -> Self {
58 FLocation {
59 longitude: value.longitude.parse().unwrap(),
60 latitude: value.latitude.parse().unwrap()
61 }
62 }
63
64}
65
66#[derive(Debug,Clone,PartialEq,Deserialize,Serialize)]
67pub struct LocationResponse {
68 pub iss_position: Location,
69 message: String,
70 timestamp: i64
71}
72