Extreme photo: Lift-off from the sky

Some photos are harder to shoot than others. It seems that there are groups of skydiver enthusiasts who are celebrating each space shuttle lift-off with a coordinated jump. One of them created a majestic picture of one of these incredible moments (June 7, 2010 lift-off of a Delta 2 rocket, from Vandenberg Air Force Base). An exceptional photo.

You may have seen this photo somewhere else (I found it on an FTP dump site). Please, let me know who is the author.