Sorry, it's a montage
My Brother is very good at assembling these montages from a string of individual images. He did a not quite so neat, but still impressive takeoff montage a while back when Concorde first returned to service.
Giveaways include the stepped base of the composite image and some overall brightness changes from image to image - hard to pick-up since they have been smoothed through, but they are there...
Just one Concorde flying-in to close the era of supersonic commercial passenger travel.