from the Wall Street Journal article linked at THE OBAMA FILE LATEST NEWS ENTRY FROM 5/10/09:
http://online.wsj.com/article/SB124093288256863979.html
The 747-200B aircraft, one of two used as Air Force One, was accompanied by two F-16 fighters from the D.C. Air National Guard, which operates out of Andrews.
“We’ve never been asked to do this before,” said Capt. Byron Coward, a spokesman for the guard unit.
While the F-16s were flown by guard pilots, the photographs were taken by Master Sgt. Andrew N. Dunaway, a specially trained Air Force photographer based with a combat camera squadron at Charleston Air Force Base, S.C.
Only one of the F-16s was involved in the photo shoot; the other peeled off once the 747 reached New York, but both accompanied the plane back to Andrews