CaseFormation2017
Sioux Falls, SD, USA
Small unorganized groups of orbs that had a goldish glow.
Report quality: Moderate58/100
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 (57 characters)
- Location geocoded exactly
- 1 other report from the same city within 3 days
- When
- 2017-12-04
- Where
- Sioux Falls, SD, USA
- Shape
- Formation
- Duration
- ~20 minutes
- Geo
- 43.544, -96.728 · exact
- Slug
- formation-over-sioux-falls-sd-2017-2153fe
Wave
Part of a wave
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
- Sioux Falls, SD has 70 sightings on file here.
- 2017 brought 18 reports from South Dakota.
- The 2010s skewed 3.5% formation reports; the archive-wide figure is 3.3%.
Nearby in space & time
within 30 daysReport
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.