CaseDiamond2011
vacaville, CA, USA
huge, dark, diamond shape craft with lights that formed a triangle
Report quality: Moderate61/100
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: 120s, a plausible sighting length
- Moderate witness text (66 characters)
- Location geocoded exactly
- 1 other report from the same city within 3 days
- When
- 2011-10-25
- Where
- vacaville, CA, USA
- Shape
- Diamond
- Duration
- 2minutes
- Geo
- 38.357, -121.988 · exact
- Slug
- diamond-over-vacaville-ca-2011-f295bd
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
- vacaville, CA shows up 47 times across the archive.
- 624 reports came from California in 2011.
- In the 2010s, 1.5% of reports described a diamond — the all-time rate is 1.4%.
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.