High Quality Content by WIKIPEDIA articles! The Prairie Meteorite Network was a system of sixteen camera stations in Midwestern United States, run by the Smithsonian Astrophysical Observatory in 1970s-1980s. The network used surplus aerocameras with 6.3-12 inch focal length wide angle metrogon lenses that covered a format of 9 x 18 inches on aero roll film. During ten years of network`s activity only one meteorite fall was recorded, the Lost City meteorite in 1970.