[jl6]

Could also be a genuine error like a fly on the lens or a bug in the viewfinder software.

[deepnotderp]

That's a thermal camera, so I'm a little bit doubtful it's a bug, plus there were apparently multiple witnesses and computers there.

[jl6]

This story got picked up because there’s actual video footage. But unfortunately only one video. If there were multiple observers, why can’t we see multiple videos?

[icc97]

The pilot is witnessing it too

[jl6]

Isn’t it in the dark? Isn’t he just witnessing it on the tracking screen?

[icc97]

I'd have thought he's at least verifying that it's not a fly on the lens. I didn't think that pilots would fly completely blind.