In this paper, we propose a new approach to optimize the connection time for Low Earth Orbit (LEO) satellite based on dynamic sensor field. A dynamic sensor field is a long range sensor network that is able to redefine the gateway for extension communication time with LEO satellite to adapt with the shift of the satellite’s ground track at each revolution. The model for optimization comprises the parameters of both ground and space segment. The experimental results are performed on two sensor field deployments which aim at optimizing the connection time for successful communication.