My question is how often will a communication satellite needs to communicate with ground control . The context is that the satellite will be in low earth orbit and is providing coverage to a specific geographical area, not in the polar regions.

My second question is what would be the orbital parameters of the satellite will be once it is released in space from a rocket, I am asking about right ascending node, inclination and eccentricity etc, I am referring to Keplerian COE.

Please provide all sources