Geodetic coordinates are a system used to specify locations on the Earth's surface. They are typically expressed in terms of latitude, longitude, and altitude. Latitude measures how far north or south a point is from the equator, while longitude measures how far east or west a point is from the Prime Meridian. Altitude indicates the height above sea level. This coordinate system is essential for various applications, including navigation, mapping, and geographic information systems (GIS). By using geodetic coordinates, we can accurately pinpoint locations, making it easier to study and understand our planet's geography.