When and where was Ivan Sanderson Disc over Delaware Water Gap documented?

This encounter was documented on October 2, 1958 in Delaware Water Gap near Blairstown, New Jersey, United States.

What sources and physical claims back the Ivan Sanderson Disc over Delaware Water Gap record?

The ANOMALY archive indexes 0 independent source citations across 0 claims, achieving a provenance completeness score of 43%.

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E-006357DATE PRECISION: exactRECORD COMPLETENESS: 43%

Ivan Sanderson Disc over Delaware Water Gap

Name: Ivan Sanderson Disc over Delaware Water Gap
Start: October 2, 1958
Location: Delaware Water Gap near Blairstown, United States

October 2, 1958Delaware Water Gap near Blairstown, New Jersey, United States

Zoologist Ivan T. Sanderson reported a disc maneuvering over the Delaware Water Gap, looping back and forth and changing apparent aspect before speeding west.

// LINKED CLASSIFICATIONS:Box / Van / Rectangular(C-000262)→

// PROVENANCE COVERAGE

43% record completeness

This measures documentation coverage, not whether the encounter or its claims are true.

0 SOURCES · 0 PRIMARY

Date documented

October 2, 1958

Location documented

Delaware Water Gap near Blairstown, New Jersey, 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

DIRECT PROVENANCE INCOMPLETE

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.