UFOMYST
CaseCircle2010

Northglenn, CO, USA

circular craft that strobed different collors

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: 1200s, a plausible sighting length
  • Brief witness text (45 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2010-10-04
Where
Northglenn, CO, USA
Shape
Circle
Duration
over 20 min
Geo
39.886, -104.987 · exact
Slug
circle-over-northglenn-co-2010-d6370f
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

  • Northglenn, CO shows up 13 times across the archive.
  • 72 reports came from Colorado in 2010.
  • In the 2010s, 12.3% of reports described a circle — the all-time rate is 10.6%.

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.