← ENCOUNTERS DIRECTORYENCOUNTER-CLAIM PROVENANCE PRESENT
E-005601LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%
Bangor Larry Swanson Low-Altitude Disc Report
April 22, 1998Naval Submarine Base Bangor / Naval Base Kitsap area, Washington, United States
Larry Swanson reported a large silent ring/disc-like object moving slowly at low altitude across the Bangor base area. His original estimate placed it over the base; Hastings later mapped the estimate as possibly just west of the nuclear weapons bunker complex, so exact WSA overflight remains uncertain.
// LINKED CLASSIFICATIONS:Nuclear & Defense Incursions(P-000102)→
// PROVENANCE COVERAGE
100% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
1 SOURCES · 0 PRIMARY
Date documented
April 22, 1998
Location documented
Naval Submarine Base Bangor / Naval Base Kitsap area, Washington, United States
Map coordinates available
Coordinate precision: region.
Catalogue classification linked
1 family link(s), 1 case-specific component(s).
Published citation-backed claims
4 encounter-target claim(s), 6 component claim(s).
Source coverage
1 unique source edition(s); 0 marked primary for at least one claim.
Assessment has encounter-level provenance
4 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 estimate10
Stored verified-report count0
Instrumental evidence flagNO
Official investigation flagNO
// ENCOUNTER LOCATION · OPENSTREETMAP
COORDINATE PRECISION: REGION