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Association for Aerial Anomaly Research and Cataloging

UFO and Paranormal Research from south-central Indiana

Always Watching the Skies


Jacques Vallee's
Close Encounter Classification System

Jacques Vallee, author and UFO researcher

You are probably more familiar with the late J. Allen Hynek's system for classification of UFO close encounter reports, but the following is a more detailed system devised by the world renowned UFO researcher, Jacques Vallee. I am not personally aware of anyone who has referenced these categories in their reporting, nonetheless, I present them here for your edification. --Lynn Taylor  

AN1:     Anomalies that do not have lasting physical effects, such as amorphous lights or unexplained explosions.

AN2:     Anomalies with lasting physical effects, such as some poltergeist phenomena, apports (materialized objects), and areas of flattened grass.

AN3:     Anomalies with associated entities. This class could include reports of ghosts, yetis, and other instances of cryptozoology as well as elves and spirits.

AN4:     Anomalous reports in which witnesses experience personal interaction with entities in the reality of the entities themselves. They include near-death experiences, religious miracles and visions, and many cases of out-of-body experiences.

AN5:     Instances that include anomalous injuries or deaths, such as spontaneous combustion or unexplained wounds or even permanent healing.

FB1:     Sighting of a UFO “fly-by” in the sky.

FB2:     UFO fly-by accompanied by physical evidence.

FB3:     UFO fly-by in which beings were observed onboard.

FB4:      Flyby where the witness experienced a transformation of his or her reality into the reality of the object or its occupants.

FB5:      A flyby as a result of which the witnesses would suffer permanent injuries or deaths.

MA1:    UFO observations that involve an object with a discontinuous trajectory (such as a drop, a maneuver, or a loop).

MA2:    Include cases that give rise to physical effects in addition to a discontinuous trajectory.

MA3:    Contains the cases in which objects with discontinuous trajectories when beings are observed on board.

MA4:    Instances involving maneuvers, accompanied by a sense of transformation of reality for the percipient.

MA5:    A maneuver as a result of which the witnesses suffer permanent injury or death.

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Updated: February 05, 2006
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