STQ444 was a Starwings CitationJet D-CKNA which went into Luton around then. Came in via Mayfield and Barkway with a turn over London.
Can't do replays on ADSB Exchange but I did notice a German AF A400M heading west over London at some point yesterday, probably morning - think it went into Fairford.
Last edited by treadigraph; 13th Aug 2019 at 19:43.