UFOMYST
CaseCylinder1990

Alaska airspace (above Arctic Circle), USA

Engagement with objects by USAF aircraft

Report quality: Moderate42/100

This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.

  • Duration parsed: 240s, a plausible sighting length
  • Brief witness text (40 characters)
  • Location could not be geocoded
  • No other reports from this city within 3 days
When
1990-02-15
Where
Alaska airspace (above Arctic Circle), USA
Shape
Cylinder
Duration
4 minutes
Geo
—
Slug
cylinder-over-alaska-airspace-above-arctic-circle-1990-ac5a14
Wave

Part of a wave

  • Historical wave1989–1991

    The Belgian Triangle Wave

    Belgium (Eupen, Wallonia, Brussels corridor)

    The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

    Open wave →

In context

  • Alaska airspace (above Arctic Circle), USA has 1 sightings on file here.
  • 1990 brought 3 reports from USA.
  • The 1990s skewed 1.4% cylinder reports; the archive-wide figure is 1.6%.

Report

Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.