Mumbai University > Satellite Communication and Networks

Marks: 5M

Earth sensor in geo-stationary satellites gives instantaneous roll and pitch axes information.

Yaw is indirectly controlled through a roll yaw coupling over an orbit. An additional sun sensor enables realization of the sun vector in the satellite internal coordinate system.

It uses the attitude information from the earth scan sensor and the sun vector measurement to explicitly determine the yaw over an orbit of a satellite.