The contrail twists all over though
No contrail. Husband, who is professinally knowledgeable about jets and aviation, defines contrail as when hot air from exhaust hits cold air of high altitude, condenses, and leaves a sometimes long-lingering trail. This was not a contrail, it was the burn of something entering the atmosphere. No lingering contrail at all. Just a burn, and what caught his eye was the setting sun reflecting off the burn.