UFOMYST
CaseTriangle2011

Chester, IL, USA

Triangle larger then a football field

Report quality: Moderate48/100

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: 900s, a plausible sighting length
  • Brief witness text (37 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2011-12-08
Where
Chester, IL, USA
Shape
Triangle
Duration
15 min
Geo
37.914, -89.822 · exact
Slug
triangle-over-chester-il-2011-f7a161
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…

    Open wave →

In context

  • This is one of 3 reports logged in Chester, IL.
  • This case is one of 219 Illinois reports filed in 2011.
  • Triangle craft made up 8.4% of 2010s reports, vs 9% across the whole archive.

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.