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Redacted data hinders UAP velocity analysis

A research paper finds that missing sensor data in 112 government videos prevents scientists from proving anomalous flight speeds.

Diagram explaining the parallax effect and camera movement relative to a slow object.
A diagram illustrating how camera movement can create the illusion of high speed. Youtube video

A scientific analysis of 112 sensor videos released by the U.S. government concludes that redacted on-screen displays make it impossible to prove anomalous UAP velocities [1][2].

The research suggests the videos cannot distinguish between mundane objects at close range and high-speed craft at a distance without specific data [1]. This challenges the utility of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE) videos as evidence of physics-defying flight [2].

Required data for velocity

The paper states that calculating physical velocity from pixels per frame requires four pieces of information: the object's range, the observing aircraft's velocity, the aspect angle of the object's path, and the camera's field angle [1][2].

No PURSUE video provides this complete data set [1].

In one clip, DOW-UAP-PR113, researchers reconstructed the field of view via depression-angle markings. However, they said the footage still could not distinguish a nearby bird from a craft traveling at Mach 5 a kilometer away [1][2].

Another clip, DOW-UAP-PR149, included a vessel of known size [1]. This reference allowed researchers to calculate an upper bound relative velocity of Mach 0.4 for the object [2].

What we don't know

  • Can the redacted information on PURSUE on-screen displays be recovered to allow for accurate kinematic inference?
  • What specific data would be required to conclusively resolve the unidentified cases in the PURSUE sensor videos?

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Context

Source documents

Sources

  1. Limits on Kinematic Inference from the PURSUE Airborne Sensor Videos — arXiv: unidentified anomalous phenomena, Aug 12, 2026
  2. Limits on Kinematic Inference from the PURSUE Airborne Sensor Videos — doi.org

Photos and video from the reports

Published with the cited reports. We link to them rather than reproduce them.

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