This KC-135R appears to be doing a low level coastal tour of the UK. Just overflew EGHQ approach at 2450ft. No idea why, but interesting to note.
You open the history tab on the left side in the details, then copy the URL: https://globe.adsbexchange.com/?icao=ae023b&lat=54.015&lon=-3.781&zoom=6.0&showTrace=2020-08-24 Goes nice with any screenshot so people can look at it themselves.