Lake Cote aerial-survey photograph

At 8:25 a.m. a National Geographic Institute (IGN) mapping flight at 10,000 feet, photographing for the Costa Rican Electricity Institute's Arenal project, took a frame every 13 seconds with a Zeiss survey camera; one frame shows a disc-like object over Lake Cote that is absent from the frames before and after, and no one aboard saw anything; the object was noticed in the darkroom. Crew member Sergio Loaiza said they were told not to discuss it. Richard Haines and Jacques Vallée studied the image and considered, among other things, a pressure mark or defect on the film; recent Metabunk work favours an artefact of the camera or film but has no access to the original negative. The photograph is on the cover of the French COMETA report, whose translation is in the PURSUE release.

none established; a film defect or optical artefact is favoured by sceptical analysts

• Document255_413270_UFO's_and_Defense_What_Should_we_Prepare_ForRelease 1

  UFOs and Defense: What Should We Prepare For? (the COMETA report), with April 2001 Carol Rosin cover letter and handwritten notes

  This is not a NASA-authored document: it is a 2001 cover letter and handwritten notes from Carol Rosin (self-described former spokesperson for Wernher von Braun) forwarding the 1999 French COMETA report 'UFOs and Defense: What Should We Prepare For?' to a NASA official, apparently seeking a meeting. COMETA was an independent association of former auditors of the French defense-studies institute IHEDN, not a French government body. The report reviews French pilot testimonies, five foreign radar/visual aeronautical cases (Lakenheath-Bentwaters, RB-47, Tehran 1976, a Russian missile-base case, Belgium), several French ground cases investigated by GEPAN/SEPRA (Trans-en-Provence, the 'Amaranth' case, a 1979 close encounter with reported humanoid figures), and recommends French and EU government action, stating the extraterrestrial hypothesis 'cannot be ruled out.'

  Open the original on war.gov

• 

  The Reality of UFOs UAP with Leslie KeanWatch from 36:44 on YouTube

• Unverified36:44Leslie KeanSingle sensor

  A 1971 photo taken by an automated Costa Rica aerial-mapping camera (one frame among many taken every 20 seconds) shows a disc-shaped object over a lake; it appears in only that single frame and was studied by multiple scientists who calculated its altitude and speed.

  It wasn't there before and it wasn't there after. And they calculated a lot about the height and the speed.

  Said in The Reality of UFOs UAP with Leslie Kean

• CRHoy: Hace 45 años un ovni impresionó a Costa Ricacrhoy.com
• Metabunk: 1971 Lake Cote aerial photometabunk.org