If we consider the temperature of the planet which is 50 K, shows that the planet is quite distant from the central point of the solar system which itself shows one of the characteristics of Jovian planets.
If escape velocities of the planets are to be considered than for terrestrial planets like that of our Earth, the escape velocity must be similar to that of the Earth which is 11.2 Km/s, quite a smaller value as the gravitational pull of Earth is stronger than that of the Jovian planets with much higher values of escape velocities as the mentioned one here is 30 km/s which is again indicative of the planet being a Jovian planet.
