‘Secret’ X-37B Space Plane Disappears Again

[BATMAN]

I will tell you this...If something is in orbit long enough -- LONG ENOUGH -- it will be found. Amateur astronomers heavily contribute to the monitoring of orbital bodies. What is 'secret' about the X-37B is not so much where it is but about what it is and what is it going to be used for. So if amateur astronomers can track it, that is of no concern to US.

Please, care to share what it is filled with?
Why is it orbiting around the globe... in specific orbits?