U1 Ufo Sighting Classification (disambiguation)

U1 Ufo Sighting Classification may refer to:

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  UFO classification scheme (often referred to as “U1” in some reporting systems)

  A U1-style category used in certain UFO reporting/classification systems to denote a particular level/type of reported sighting.

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  U1 (UFO/UGFO reporting category) in MUFON-style classification contexts

  The “U1” label as used in some UFO databases or investigator classification workflows (e.g., within MUFON-associated or similar systems).