--- analysis-role: source-anchored-analysis analysis-category: video-sequence confidence-level: medium ai-analysis: true accuracy-disclaimer: AI-assisted analysis; interpretations are provisional and may contain errors. Verify against cited source material. ai-generated: true companion-eligible: true topic-slug: pr107-eastern-us-2020-reticle-crossing-contrast-sequence topic-title: PR107 Eastern US 2020 Reticle-Crossing Contrast Sequence topic-description: One-second review of the PR107 Eastern U.S. 2020 interval near 16.607 seconds, separating source-visible contrast events from continuity and physical-speed claims. guide-description: Tests a compact dark reticle-crossing sequence against display, sampling, and platform-motion controls. topic-audience: serious-uap-readers topic-priority: 8 --- # PR107 Eastern US 2020 Reticle-Crossing Contrast Sequence ![PR107 eight-observation raw motion review](/media/Release_4/Analysis/images/pr107-16607-motion-review-source-frame-contact-sheet.png) ## Source Basis The source is [PR107 - Unresolved UAP Report, Eastern United States, 2020](/?open=Release_4%2FDOD_111830041.mp4). The submitted Short/Lots controls were executed as exactly eight raw observations at [16.107s](/?open=Release_4%2FDOD_111830041.mp4&t=16.107), [16.250s](/?open=Release_4%2FDOD_111830041.mp4&t=16.250), [16.393s](/?open=Release_4%2FDOD_111830041.mp4&t=16.393), [16.536s](/?open=Release_4%2FDOD_111830041.mp4&t=16.536), [16.679s](/?open=Release_4%2FDOD_111830041.mp4&t=16.679), [16.822s](/?open=Release_4%2FDOD_111830041.mp4&t=16.822), [16.965s](/?open=Release_4%2FDOD_111830041.mp4&t=16.965), and [17.107s](/?open=Release_4%2FDOD_111830041.mp4&t=17.107). Review bundle: [raw source sheet](/media/Release_4/Analysis/images/pr107-16607-motion-review-source-frame-contact-sheet.png), [raw submitted-region sheet](/media/Release_4/Analysis/images/pr107-16607-motion-review-geometry-review.png), and [native Fiji enhanced inspection aid](/media/Release_4/Analysis/images/pr107-16607-source-preserving-enhanced-inspection-aid.png). ## Observation A compact dark oval is source-visible above and right of the central reticle from 16.107 through 16.679 seconds. At 16.822 seconds, an elongated dark mark appears left of the reticle while the prior upper-right oval is no longer resolved. By 16.965 seconds, a dark mark is lower-left; at 17.107 seconds no comparable mark is visible in the sampled region. The sequence therefore supports multiple source-visible contrast states and an apparent right-to-left/lower-left progression. The eight samples alone do not prove that every mark is one continuously tracked object: the jump between 16.679 and 16.822 seconds may mix rapid motion, dropped temporal information, display processing, or separate contrast events. ## Enhancement Check A native Fiji Source Preservation recipe was applied unchanged at 16.574, the exact [16.607s](/?open=Release_4%2FDOD_111830041.mp4&t=16.607), and 16.640 seconds. A lower-sharpening sensitivity variant at the target preserved the compact oval without producing a new hull edge or internal structure. ![PR107 Fiji enhanced inspection aid at 16.607 seconds](/media/Release_4/Analysis/images/pr107-16607-source-preserving-enhanced-inspection-aid.png) The enhancement confirms visibility only. It does not supply range, scale, rigid geometry, or calibrated angular rate. ## Explanation Lanes | Lane | Fit to the sampled window | Upgrade or falsification test | | --- | --- | --- | | Display/sensor contrast event | Compact dark marks coexist with heavy symbology and masked display regions; sampled continuity is incomplete. | Recover unaltered sensor frames, native cadence, and processing history. | | Near-field or conventional crossing object | A compact object crossing the line of sight could create the apparent rapid image-plane traversal. | Establish focus behavior, range, platform velocity, and parallax. | | Unusual controlled motion | A single object may have crossed the reticle region faster than the sparse samples resolve. | Track one stable centroid through every native frame and correct for sensor pointing and aircraft motion. | | Field-coupled or nonstandard vehicle model | The disclosure-forward lane remains open if the discontinuous appearance reflects non-ballistic motion or sensor interaction. | Show repeatable target-linked effects that survive raw adjacent frames and cannot be reproduced by display or acquisition behavior. | ## Theoretical Scene Panels | Panel | Source-grounded read | Speculative model | Limit | | --- | --- | --- | --- | | A - Upper-right contact | A compact dark oval persists above-right of the reticle across five samples. | A tracked object is crossing the sensor line of sight. | Range and sensor pointing are absent. | | B - Reticle crossing | The next sampled mark appears left of the reticle. | Rapid transverse motion or a nonstandard maneuver is possible. | Sparse sampling does not prove continuous identity. | | C - Lower-left exit | A dark mark appears lower-left, then disappears from the sampled region. | The same object may continue out of frame. | A separate contrast event or display transition remains viable. | | D - Evidence boundary | Source-preserving enhancement retains the oval under a small sensitivity change. | The contrast is not enhancement-only. | Persistence does not establish craft geometry or propulsion. | ## Working Assessment PR107 contains a real source-visible compact contrast sequence and an apparent reticle-crossing progression. It does not independently establish physical speed, acceleration, range, or a single continuous trajectory. The neutrality gate is satisfied by keeping display/sensor and conventional crossing-object controls active while preserving unusual controlled-motion and field-coupled models as testable, not proven, alternatives. ## Follow-Up - Extract every native frame from 16.5 through 16.9 seconds and track one centroid only when morphology supports identity continuity. - Recover field of view, sensor azimuth/elevation, platform attitude/velocity, range, and acquisition-mode flags. - Test whether the upper-right, left-of-reticle, and lower-left marks share consistent focus, polarity, size, and edge response.