CaseSphere2002
Grass Valley, CA, USA
Watching the flight pattern from Beal Airforce Base that runs along the northeast section of the sky over Alta Sierra(a sub-division of
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: 180s, a plausible sighting length
- Detailed witness text (135 characters)
- Location geocoded exactly
- No other reports from this city within 3 days
- When
- 2002-02-25
- Where
- Grass Valley, CA, USA
- Shape
- Sphere
- Duration
- 3 mins
- Geo
- 39.219, -121.061 · exact
- Slug
- sphere-over-grass-valley-ca-2002-afe36e
In context
- One of 34 documented reports from Grass Valley, CA in the UFOMYST archive.
- California logged 430 sightings in 2002.
- Sphere sightings ran at 5.9% during the 2000s (archive average: 6.5%).
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.