Table 1 The reference ellipsoid and geocentric gravitational constant adopted in BDCS
From: The space–time references of BeiDou Navigation Satellite System
Semi-major axis | a = 6,378,137.0 m |
Geocentric gravitational constant (Mass of Earth’s atmosphere included) | μ = 3.986,004,418 × 1014 m3/s2 |
Factor of ellipsoid flatness | f = 1/298.257222101 |
Mean angular velocity of the earth rotation | \({\dot{\varOmega }}_{{\text{e}}}\) = 7.292115 × 10−5 rad/s |