Somewhere in the Skies

The Cote UFO Photo: The Clearest UFO Image Ever Captured?

Ryan Sprague speaks with filmmakers Adam Pillon and Megan Woomer about their documentary on the 1971 Lake Cote photograph, recorded during a Costa Rican government aerial-mapping mission. Pillon and Woomer trace the people, film copies and later scans through which the image became public. Two published studies provide an unusually detailed technical record and retain the photographed feature as unidentified. Differences between the interview’s timing and scale figures and those papers leave estimates of motion and size dependent on unresolved source details.

Key themes

From survey flight to analytical record

The photograph is connected to a documented mapping flight rather than an anonymous sighting. Haines and Vallée’s 1989 paper analysed second-generation negative and positive transparencies; their 1990 follow-up states that they then examined connected frames 299–301 of the original film. That change in source material is consequential because only the later study could inspect the physical film for deformation.

Findings from the published analyses

Haines and Vallée reported image detail, tonal variation and no evidence of several proposed defects or deliberate fabrication. A referee appended to the 1989 paper proposed a pressure mark; the 1990 inspection found no corresponding deformation on the original film and retained the classification as unidentified. The studies test defined photographic explanations while leaving distance, composition and origin undetermined.

Timing and scale require source control

Pillon and Woomer give an approximate 13-second interval between exposures and an 84-metre diameter if the feature were at ground level. The 1989 paper records a 20-second intervallometer setting and calculates a maximum dimension of about 210 metres at the camera’s maximum 10,000-foot distance. Flight and camera records are needed to resolve that discrepancy. Unknown distance and trajectory presently prevent a unique calculation of size or speed.

A documentary that leaves the material open

The production connects the image with photographer Sergio Loaiza, researcher Esteban Carranza, scan technician Michael Strickland and others involved in its later history. The filmmakers also say that a high-resolution scan is freely available for further examination. Establishing the generation and processing history of that file is necessary before results from it can be compared directly with the original aerial film examined in 1990.

Assessment

A well-documented unidentified exposure

The Lake Cote case has a stronger research trail than most isolated UFO photographs: the flight, camera format, adjacent frames and two published technical studies can be examined. Frame 300 contains a disputed oval feature, and the flight crew reported seeing nothing unusual at the time. Haines and Vallée’s original-film study rejected several artefact and fabrication hypotheses and retained the image as unidentified, a classification that carries no positive finding about a craft. Further progress depends on direct comparison of the surviving original film, later copies and the downloadable scan through reproducible tests of competing image-formation mechanisms.