Question

# Aeronautical

How are the ephemeris data broadcast in GLONASS?
a) ECEF coordinates
b) ECI coordinates
c) Directional cosines
d) Geodetic spherical coordinates

Explanation: The GLONASS ephemeris data are broadcast as ECEF or Earth Center Earth Fixed coordinate system cartesian coordinates in position and velocity with lunar and solar acceleration perturbations parameters that are valid about 0.5 hour.

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