The coordinate system in a Global Navigation Satellite System (GNSS) is a system of reference used to specify the position of a point on the Earth's surface. The most commonly used coordinate system in GNSS is the **World Geodetic System 1984 (WGS 84)**, which is based on the Earth's shape as an oblate spheroid (an ellipsoid of revolution).
The coordinate system in a GNSS is a system of reference used to specify the position of a point on the Earth's surface. The most commonly used coordinate system in GNSS is the **World Geodetic System 1984 (WGS 84)**, which is based on the Earth's shape as an oblate spheroid (an ellipsoid of revolution).
**The WGS 84 coordinate system is defined by the following parameters:**
