Let's say I want to use a phased array detector on a satellite to detect other objects in space. The radar would need to be able to detect objects .5cm or larger, and would have to get an accurate read on their position (within 10-15 m). From there, the goal would be to maximize the volume of space scanned per second. How much volume of space could I expect to scan this accurately per second? Obviously, the more the better. I am open to any variant of phased array (or any other method of radar if that would work better). It would also be a plus to be able to detect the velocity components and size of the object. Would there also need to be some kind of wave emitter to "paint" objects for the radar to detect? Also, I am trying to understand how phased array works when detecting objects. I understand that the beam can be steered. Do most phased array radars work by scanning, say, a cone with a 2 degree angle, then just determining if an objects lies within that cone? Or can they determine where (in multiple dimensions) an object lies within that cone? Kinda confused here. Thanks!