The massive data dump on the official website has a bunch of neat links.
#6 This is the simulated collision of the measured event.
orbitif the discovering scientists got lucky finding these waves so quickly.
The detectors just finished their massive upgrade when they measured the signal. Interestingly, the detectors have computer systems that make fake "results" to both keep the scientists on their toes when they are analyzing the signal and to make sure that the detector is working. However, because they had just finished the upgrades that system wasn't even on, so the detected signal must have been a gravitational wave.