Terrestrial (TCS): is a right orthogonal CS centred on Earth's CM. It coincides with ICS on the vernal equinox and rotates with Earth.
Local Horizontal (LHCS): is a right orthogonal CS centred in the CM of the satellite. is pointing along the Zenith, along East longitude and along South positive coelevation.
is a right orthogonal CS centred on Earth's CM. It coincides with ICS on the vernal equinox and rotates with Earth.
is a right orthogonal CS centred in the CM of the satellite. 
along South positive coelevation.