North Korean leader Kim Jong Un inspected a completed spy satellite for the military, which his country plans to launch soon, during a trip to an aerospace facility where he said space-based spying was vital for challenging the U.S. and South Korea.

Kim during Tuesday’s trip endorsed an unknown “future action plan” for getting ready to launch the satellite, North Korea’s official Korean Central News Agency reported Wednesday. North Korea hasn’t revealed a launch date, which some analysts think may be in the coming weeks.

That launch would employ long-range missile technology forbidden by previous U.N. Security Council resolutions, but earlier missile and rockets tests have shown North Korea’s capacity to put a satellite into orbit.

However, there are more doubts about the satellite’s ability. Some South Korean analysts say the satellite seen in North Korean state media photos looks too small and poorly made to produce high-resolution images. Photos that North Korean media shared from earlier missile launches were low-quality.