2 September 1960
(Argus-Leader, Sioux Falls, South Dakota)
The whole article:
“A mysterious reddish object circling the earth that presumedly left what appeared to be a large vapor trail over Sioux Falls has been photographed by a tracking camera of the Grumman Aviation Engineer Corp. at Bethpage, N.Y.
Grumman, The Associated Press reported, said the photograph was taken by a special tracking crew which has been on watch.
The strange object was reported as result of a news story in the Argus-Leader saying a vapor trail or what resembled a large beam of light in the atmosphere was reported over Sioux Falls and later much of the nation.
There is no scientific explanation as yet for the object, which was reported traveling cast to west rather than on the west to east trajectory common to man-made satellites.
The object appears to be about a tenth the size of the Echo I balloon satellite and traveling about twice as fast.
The Adler Planetarium of Chicago is compiling data on the object and says it doesn’t appear to be an artificial satellite or a meteor.”
Satellite photo of Sioux Falls, South Dakota (tageo.com)