CaseCylinder2020

ALSIP, IL, USA

White cylinder object no wings, no means of propulsion, no sound, flying South 1000 feet in air, rapidly accelerates and is gone

Report quality: Moderate55/100

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: 600s, a plausible sighting length
  • Detailed witness text (128 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2020-08-14
Where
ALSIP, IL, USA
Shape
Cylinder
Duration
10 minutes
Geo
41.669, -87.739 · exact
Slug
cylinder-over-alsip-il-2020-6ef70f
Wave

Part of a wave

  • Historical wave2004

    The Navy Encounters & the UAP Era

    U.S. training ranges (Pacific off San Diego; Atlantic off Virginia), then worldwide reporting

    The wave that renamed the subject. The USS Nimitz 'Tic Tac' encounter (November 2004: radar drops from 80,000 ft to sea level in seconds, pilot visual by Cmdr. David Fravor, FLIR video) stayed classified-adjacent until…

In context

  • This is one of 7 reports logged in ALSIP, IL.
  • This case is one of 169 Illinois reports filed in 2020.
  • Cylinder craft made up 1.6% of 2020s reports, vs 1.6% across the whole archive.

Nearby in space & time

within 30 days

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.