I think it’s worthwhile starting a thread to potentially ID the jet in the GIMBAL video, working off of the assumption that it is a jet, consistent with the DCS recreation I did based off of the angles and ranges from the stuff done in GeoGebra, here:
If this is what we see in the original video then we are looking for a jet flying with the following approximate values:
240knots IAS, M0.6
20,000 – 25,000 ft
12-15 nmi away
Roughly the size of a hornet (13.6m span ... Read even more