This has happened for the last 3 years 2016 , 2017 , and now this year 2018, every New Years Eve and New Years Day .at around 00:05 , most sightings that I've seen were with 3 crafts or as singles this year was a sigle craft , it flew trough the airspace of the BER which closed around 10 at night there isn't any night flights . So the Airspace is free !It was flying at about 200 meters or 400ft. to 500ft.,it was moving fast at this time ,at a speed faster than all other aircraft that fly over maybe at 500 -600 kpm !I just had time to take pictures and then run to the Kicthen and lean out the window to get the last 3 pictures !also on the 20th of April at 23.44 saw a single craft over the same flight pattern comming from the South and going North as all others have done, that would put them going over the Alexander Platz in 5 min , at the speed they are traveling !