← ENCOUNTERS DIRECTORYDIRECT PROVENANCE INCOMPLETE
E-006306DATE PRECISION: exactRECORD COMPLETENESS: 29%
Seymour Hess Lowell Observatory Disc/Sphere Observation
May 20, 1950Lowell Observatory, Arizona, United States
Meteorologist and astronomer Seymour L. Hess reported a disc or partly illuminated sphere crossing in front of cumulus clouds while the clouds drifted at right angles to its motion. He estimated roughly 100-200 mph and reported no engine noise.
// PROVENANCE COVERAGE
29% record completeness
This measures documentation coverage, not whether the encounter or its claims are true.
0 SOURCES · 0 PRIMARY
Date documented
May 20, 1950
Location documented
Lowell Observatory, Arizona, United States
Map coordinates available
No latitude/longitude is available for mapping.
Catalogue classification linked
0 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 estimate1
Stored verified-report count0
Instrumental evidence flagNO
Official investigation flagNO
These stored assessment values are shown transparently but should not be treated as source-backed facts until encounter-target claims cite their provenance.