🇺🇸 USAF — Project Blue Book
In June 1967, a witness in Nauvoo, Illinois, observed an object in the sky for seven minutes. The report notes that the object was moving south and was seen from the ground. Although no photos were taken and no physical evidence was found, the report suggests the object could have been the ECHO II satellite. The satellite's location at that time matched the direction of the sighting, supporting this conclusion. The witness could not estimate the object's speed or exact distance, but provided details about its location and surroundings.