← ENCOUNTERS DIRECTORYENCOUNTER-CLAIM PROVENANCE PRESENT
E-002215LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: rangeRECORD COMPLETENESS: 100%
Northern Tier Nuclear-Base Incursions
October 27-November 10, 1975Malmstrom AFB missile field, Montana, United States
Hastings compiles NORAD, military-message and witness material covering reports at Malmstrom, Loring, Wurtsmith and Minot.
// LINKED CLASSIFICATIONS:Triangle / V / Boomerang(C-000254)→Nuclear & Defense Incursions(P-000102)→
// PROVENANCE COVERAGE
100% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
6 SOURCES · 2 PRIMARY
Date documented
October 27-November 10, 1975
Location documented
Malmstrom AFB missile field, Montana, United States
Map coordinates available
Coordinate precision: region.
Catalogue classification linked
2 family link(s), 2 case-specific component(s).
Published citation-backed claims
9 encounter-target claim(s), 11 component claim(s).
Source coverage
6 unique source edition(s); 2 marked primary for at least one claim.
Assessment has encounter-level provenance
9 encounter-target published claim(s) can carry assessment provenance.
// ASSESSMENT METADATA
Stored case-assessment fields
Stored total witness estimate12
Stored verified-report count0
Instrumental evidence flagYES
Official investigation flagYES
// ENCOUNTER LOCATION · OPENSTREETMAP
COORDINATE PRECISION: REGION