How do you know where the target is? That's the part where a computer helps. You don't need to see to know where the sun is given a frame of reference, that's j

How do you know where the target is? That's the part where a computer helps. You don't need to see to know where the sun is given a frame of reference, that's just math and a clock. Your frame of reference is initially unknown and varies slightly, but significantly, with time. Training a computer vision system to look for "insanely bright rectangle subtending <1° of space elevated on a stick" is just the thing computer vision is becoming good at. It's even easier than asking my phone to "show me my pictures of goats" (111 hits, zero false positives (assuming sheep are goats)). Of course, a tall skinny field tech should think twice about wearing a short, bulky, white jacket.