And yes you are right about FOV - animation in the article is only a tiny part of the whole image.
I use a 19" monitor - and if you divide the whole image to the stripes you can see on the screen, to check the entire image means to go down 2 x down and 2 x up, which takes at least 30 minutes time.
Only then I realized what happened - I felt the satisfaction that many hours I spent in front of my PC monitor were useful. Although the asteroid escaped from detection software, it was caught by me. I added 4th Near Earth Asteroid to my "collection" which I started seven years ago. This time, an estimated 600-800 meters sized rock, which would obviously cause problems if it directed into our atmosphere.