 The multinational research team looking into the missing tapes—mostly retired engineers who had worked on the original broadcast in 1969—was represented at the event by Richard Nafzger from the Goddard Space Flight Center and Stanley Lebar, the former lead engineer at Westinghouse who developed the Apollo Lunar Camera and the Apollo Color Camera.They concluded that the data tapes—with the SSTV signal—were shipped from Australia to Goddard and then routinely erased and reused a few years later.Australian backup tapes were also erased after Goddard received the reels, following the procedures established by NASA.