|Credit: CEFAA / ufosontherecord’s channel|
|This “UFO” observed on infrared video by the Chilean Navy leaving contrails is probably a plane leaving aerodynamic contrails; probably the LA330, which was in the right place, time heading and altitude (20,00ft).||
Based on analysis by @Trailblazer, @Trailspotter, myself, and others, The plane that seems to fit best is LA330, a two engined A320, which was reported to be climbing through 20,000 feet at that exact visual position at 14:01:39. It was actually 65 miles away, not 35-50. This explain why it was not seen on radar (the actual plane was on radar, just not where they thought it was).