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E-009518LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%
Delphos Luminous Object and Persistent Ground Ring
November 2, 1971Johnson family farm near Delphos, Kansas, United States
Ronald Johnson reported a brilliantly luminous mushroom-shaped object hovering near the family farm. A glowing/white ring at the site reportedly persisted and displayed unusual water-repellent behavior; Hall reviews multiple later laboratory analyses with mixed or disputed interpretations.
// LINKED CLASSIFICATIONS:Dome / Mushroom / Beehive(C-000260)→Physical Trace & Environmental Effects(P-000103)→
// PROVENANCE COVERAGE
100% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
1 SOURCES · 1 PRIMARY
Date documented
November 2, 1971
Location documented
Johnson family farm near Delphos, Kansas, United States
Map coordinates available
Coordinate precision: region.
Catalogue classification linked
2 family link(s), 1 case-specific component(s).
Published citation-backed claims
2 encounter-target claim(s), 1 component claim(s).
Source coverage
1 unique source edition(s); 1 marked primary for at least one claim.
Assessment has encounter-level provenance
2 encounter-target published claim(s) can carry assessment provenance.
This dossier currently depends on a single source edition; independent coverage would strengthen comparison.
// ASSESSMENT METADATA
Stored case-assessment fields
Stored total witness estimate1
Stored verified-report count0
Instrumental evidence flagNO
Official investigation flagNO
// ENCOUNTER LOCATION · OPENSTREETMAP
COORDINATE PRECISION: REGION