We are looking at a quite small patch of sky quite low to the horizon . I estimate 15° to 25° above the horizon and we are seeking to match the stars with lights detected in a photograph some of which are probably stars, some of which may be planes, and some may be image processing artifacts. Only fairly bright stars are likely to be seen in the sky from central London so I limited the stars shown in Stellarium to around magnitude 5 and thus filtered out fainter stars. The same constellations rise every day at a slightly incrementally later time . We know that the rough time period is November to February 2013/14. Rising directly South (before midnight) at this time of year are the constellations Orion , then Canis Major and then Pyxis. This part of the sky seems to be the best candidate for a match with the trafficam image. However I do not think we can pinpoint a specific date and time from a single image.
I have been testing overlaying the trafficam "stars" over stellarium screenshots of the Pyxis, Canis major and Orion region. Nothing to report so far.