The radar they are using is a component of the ballistic defense network. Unfortunately, there are a lot of 'mid-course radars' in those schemes. On a hunch, I

The radar they are using is a component of the ballistic defense network. Unfortunately, there are a lot of 'mid-course radars' in those schemes. On a hunch, I think they're referring to this one http://www.globalsecurity.org/space/systems/sbx.htm http://www.globalsecurity.org/space/systems/sbx.htm. It is mounted on a semi-submersible platform.