can anyone tell me how the figured out where the black holes are? with just 2 "ears" I'd expect to be only able to determen a circle, but here is the picture t

can anyone tell me how the figured out where the black holes are? with just 2 "ears" I'd expect to be only able to determen a circle, but here is the picture they released: http://content.screencast.com/users/cougarten/folders/Jing/media/64d98a70-7b90-45b6-ac97-2518aa657171/2016-02-11_1650.png http://content.screencast.com/users/cougarten/folders/Jing/m... Do i see a warped circle, or the bottom part of one? In the latter case I wonder how they found out. Are the L-shape sensors capable of seeing some direction depending on which way the phases shift first/last? If you'd build one of the sensors in reverse you'd see a reversed signal, no? Given that they will have optimized the orientations of both stations this is probably how it worked and I'm seeing just part of a circle, right? That one lonely blob might be an unlikely mirrored version.