some years ago: Concorde passes balloon crossing atlantic ocean
I have seen a television report covering attempts to cross the atlantic or to fly around the world with balloons. They featured inflight balloon footage, showing a Concorde like shape passing with high speed apparently one or two kilometers away from the balloon (You could see the shape, but it was only visible for some frames). As result the balloon and its crew was badly shaken, actually the hull seemed to oscillate due to the sudden pressure. The ballon crew was later told that it was a Concorde which was supersonic during the pass.
Now my question is:
* Was this an intended pass?
For me it did not look so...because the balloon hull could have been ripped apart. If it was not intended they were pretty lucky they did not collide...
* When and where did this take place?
In short:
Does anybody know more about this event or does even have a link to a video? Thanks!