Case Directory
  Category 1, Distant Encounters 
Rating: 5  

A Hynek Classification of Distant Encounter is usually an incident involving an object more than 500 feet from the witness. At night it is classified as a "nocturnal light" (NL) and during the day as a "daylight disc" (DD). The size of the object or the viewing conditions may render the object in greater detail but yet not qualify the sighting as a Close Encounter which is an object within 500'. 

Light Hovers Over Missile Silo
May 21, 1964
Altus AFB, Oklahoma

Dan Wilson:
May 21, 1964; Altus AFB, Oklahoma (BB)
At 4:30 a.m. CST, at Missile Site 7, a large bright light was observed overhead below 10,000 feet directly over missile silo. The light was bright enough to to light silo cap. The apparent size of the object was described as large as a basketball held at arm's length. The object was first noticed hovering over the south fence of site seven for 8-10 minutes.

Detailed reports and documents
reports/640521altus_report.htm (Dan Wilson & Bill Schroeder)

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