CE1 - UAP Sightings seen at <500ft away

"Close Encounters of the First Kind" (CE1) refers to visual sightings of an Unidentified Flying Object (UFO) that is seemingly less than 500 feet (approximately 150 meters) away. These sightings must show an "appreciable angular extension" and considerable detail to be categorized as CE1. Another source states that a CE1 is an observation of a UFO within 150 yards (approximately 137 meters). Therefore, sightings that fall within these distance ranges can be classified as CE1.

To summarize, a sighting would count towards CE1 if:

• It is a visual sighting of a UFO.

• The UFO is less than 500 feet or 150 yards away from the observer.

• The sighting shows appreciable detail.

Note that the units used (feet or yards) can vary, but the approximate distance remains consistent across various sources.