Another reported today.
The number of these has become frightening. There were 29 last year, but 56 up to October this year. That comes to 85 potential disasters! There could be more. These are daylight sightings, nobody knows how many went unseen at night.
Under normal circumstances a "near miss" is defined as a separation under 500 feet/150m. Aircraft are fitted with a warning system, TCAS, to avoid "near misses", drones do not so cannot comply with TCAS. Drone "near misses" are line-of-sight. Some have been reported as being as close as 3m and some at heights of 3000m! The vast majority are reported on the final approach to an airport.
A big problem for the authorities is who is flying these things. Are they aviation-naive amateurs who made mistakes or are they something else?