International Space Station tracker Async/Await

Display the coordinates and the country of the ISS

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Display the position of the ISS (International Space Station) on a map.
The map is created with leaflet.js (code already available in the script).
Also display the coordinates (rounded to 6 decimal places) and the country over which the ISS is located.

Locate ISS
- Fetch, every 5 seconds, the position of the ISS from: https://api.wheretheiss.at/v1/satellites/25544
- Update the lat and lng values of the iss object
- Call de function updateIssMarker() to update the map
Find the country over which the ISS flies
- Use OpenStreetMaps reverse geocoding service to search for the country e.g:
  Thomas More - campus Geel
  Atlantic ocean
- Update the country value of the iss object (set the value to 'unknown' if no country was found)
- Display the coordinates and the country in the green box above the map
Custom marker (optional)
- Find an icon that matches the theme and replace the default marker with this icon
- Info: https://leafletjs.com/examples.html

const issPositionUrl = 'https://api.wheretheiss.at/v1/satellites/25544';
const reverseGeoUrl = 'https://nominatim.openstreetmap.org/reverse?format=json';

// default coordinates are for Thomas More, campus Geel
const iss = {
    lat: 51.16095,
    lng: 4.96166,
    zoom: 3,
    country: 'Belgium',
};

// initialize new Leaflet map
const map = L.map('map').setView([0, 0], iss.zoom);
// add marker (latitude = 0 and longitude = 0) to the map
const issMarker = L.marker([0, 0]).addTo(map);
// display openstreetmap tile layer on the map
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
}).addTo(map);

// call this function to update the map
function updateIssMarker() {
    issMarker.setLatLng([iss.lat, iss.lng]);
    map.setView([iss.lat, iss.lng], map.getZoom());
}
updateIssMarker();