← ENCOUNTERS DIRECTORYDIRECT PROVENANCE INCOMPLETE
E-006349DATE PRECISION: exactRECORD COMPLETENESS: 43%
Vinther-Bachmeier Sioux City Cigar-Object Encounter
January 20, 1951Sioux City airport area, Iowa, United States
Mid-Continent Airlines pilots Lawrence W. Vinther and James F. Bachmeier reported a bright light closing rapidly after takeoff from Sioux City. After it passed, they saw a cigar-shaped silhouette; the object then reportedly reversed direction, paced the aircraft, and climbed away.
// LINKED CLASSIFICATIONS:Elongated / Cigar / Cylinder(C-000255)→
// PROVENANCE COVERAGE
43% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
0 SOURCES · 0 PRIMARY
Date documented
January 20, 1951
Location documented
Sioux City airport area, Iowa, United States
Map coordinates available
No latitude/longitude is available for mapping.
Catalogue classification linked
1 family link(s), 0 case-specific component(s).
Published citation-backed claims
0 encounter-target claim(s), 0 component claim(s).
Source coverage
0 unique source edition(s); 0 marked primary for at least one claim.
Assessment has encounter-level provenance
Assessment fields exist, but no encounter-target published citation-backed claim currently supports them.
Assessment values are present without encounter-target published citation-backed claims. Treat the matrix as unprovenanced metadata until direct claims are added.
Witness totals are stored, but no encounter-level cited claim currently documents where those numbers came from.
// ASSESSMENT METADATA
Stored case-assessment fields
Stored total witness estimate3
Stored verified-report count0
Instrumental evidence flagNO
Official investigation flagYES
These stored assessment values are shown transparently but should not be treated as source-backed facts until encounter-target claims cite their provenance.