The correct answer is revolves about the polar axis.

• A Geostationary satellite revolves about the polar axis.

• A geostationary satellite is an Earth-orbiting satellite, placed at an altitude of approximately 35,800 km directly over the equator.
• A Geostationary satellite always stays over the same place above the earth such a satellite is never at rest.
• Such a satellite appears stationary due to its zero relative velocity with respect to that place on earth.
• The orbit of a geostationary satellite is called Parking Orbit.
• This satellite revolves in the same direction the Earth rotates about the polar axis.
• Earth rotates from west to east.
• It takes 24 hours to complete one revolution of the earth by satellite, which is the same time as the earth takes to rotate once on its axis.
• Geostationary satellites are used as communication satellites and for weather-based applications.

• The first geostationary satellite in the world - Syncom 3 (NASA, 1961).
• The first geostationary satellite of India - APPLE ( Ariane Passenger Payload Experiment).
• Biggest satellite in the Solar system - Gannymede.
• Smallest satellite in the Solar system - Phobos.
• Planet with the maximum number of satellites - Jupiter.