← ENCOUNTERS DIRECTORYENCOUNTER-CLAIM PROVENANCE PRESENT
E-006510LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: seasonRECORD COMPLETENESS: 100%
Yaak Radar Station Six-Target Maneuver Case
Summer 1953Yaak radar site, Montana, United States
S/Sgt. William Kelly described six unidentified radar targets repeatedly making abrupt direction changes; observers later reported visual formation changes and additional radar measurements including rapid climbs.
// LINKED CLASSIFICATIONS:Scientific & Observational Types(P-000101)→
// PROVENANCE COVERAGE
100% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
1 SOURCES · 0 PRIMARY
Date documented
Summer 1953
Location documented
Yaak radar site, Montana, United States
Map coordinates available
Coordinate precision: region.
Catalogue classification linked
1 family link(s), 1 case-specific component(s).
Published citation-backed claims
2 encounter-target claim(s), 2 component claim(s).
Source coverage
1 unique source edition(s); 0 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.
No cited source is currently marked as primary for the published claims shown here.
// ASSESSMENT METADATA
Stored case-assessment fields
Stored total witness estimate0
Stored verified-report count0
Instrumental evidence flagYES
Official investigation flagYES
// ENCOUNTER LOCATION · OPENSTREETMAP
COORDINATE PRECISION: REGION