CORROBORATED
CF-GEI-20091002505 CORROBORATED
The Coulounieix-Chamiers White Trails and Black Spheres
CASE FILE — CF-GEI-20091002505 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2009-10-27
Location Reported location of the sighting or event
Coulounieix-Chamiers, Dordogne, France
Duration Estimated duration of the observed phenomenon
Unknown duration across two sightings
Object Type Classification of the observed object based on witness descriptions
sphere
Source Origin database or archive this case was sourced from
geipan
Witnesses Number of known witnesses who reported the event
1
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On October 27, 2009, and again on November 13, 2009, a single witness in Coulounieix-Chamiers, a commune in the Dordogne department of Aquitaine, France, filmed what they believed to be anomalous aerial phenomena. The witness submitted video footage to GEIPAN (the official French UAP investigation service operated by CNES) documenting both incidents, which occurred from the same observation point.
The footage captured two distinct types of phenomena: white filaments or trails in the sky, described as 'fils blancs dans le ciel,' and multiple black spherical objects ('boules noires') crossing the sky at high velocity. The witness considered these observations significant enough to document on video and report to official authorities, suggesting initial concern about their unusual nature.
GEIPAN conducted an analysis of the submitted video evidence but noted the absence of a gendarmerie police report (PV de gendarmerie) and other investigative elements that would normally accompany more substantive cases. The case was assigned GEIPAN classification 'B,' indicating probable identification with natural phenomena, based solely on the video analysis without field investigation or additional witness corroboration.
02 Timeline of Events
2009-10-27
First Observation and Filming
Witness observes and films white trails in the sky and black spherical objects moving at apparent high speed from an observation point in Coulounieix-Chamiers.
2009-11-13
Second Observation from Same Location
Witness returns to the same observation point and films similar phenomena: white trails and black spheres crossing the sky at high apparent velocity.
Post-November 2009
GEIPAN Report Submission
Witness submits filmed observations to GEIPAN for official investigation and analysis.
Investigation Period
Video Analysis by GEIPAN
GEIPAN analysts review submitted video footage. No gendarmerie police report (PV) is filed, limiting investigation to video evidence alone.
Case Closure
Classification B Assigned
GEIPAN classifies the case as 'B' - probable observation of natural phenomena. White trails identified as aircraft contrails or atmospheric trails; black spheres identified as birds or insects in the foreground of the video.
03 Key Witnesses
Anonymous Witness 1
Civilian observer
medium
Single witness who conducted observations from the same location on two separate dates (October 27 and November 13, 2009), filming the phenomena and submitting video evidence to GEIPAN.
"Not available - witness testimony not included in public GEIPAN summary"
04 Analyst Notes -- AI Processed
This case represents a textbook example of witness misidentification of mundane phenomena, efficiently resolved through video analysis. GEIPAN's investigation was limited but sufficient given the video evidence. The 'white trails' almost certainly represent aircraft contrails or atmospheric condensation trails, common in the skies over France where commercial air traffic is heavy. The Dordogne region sits beneath several major flight corridors connecting southwestern France to European destinations.
The 'black spheres moving at high speed' display the classic characteristics of the foreground-speed illusion. GEIPAN analysts identified these as likely birds or insects passing close to the camera lens. When small objects transit the foreground while filming distant sky, they create the optical illusion of larger objects moving at impossible speeds in the background. This phenomenon is frequently misidentified in amateur sky-watching videos. The fact that the witness filmed from the same location on both dates suggests a habitual observation point, possibly near vegetation or structures that would attract birds or insects. The absence of gendarmerie involvement indicates the witness likely accepted GEIPAN's explanation or the local authorities deemed the report insufficient for official documentation.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Foreground Speed Illusion
The 'high-speed black spheres' represent a well-documented optical illusion in amateur sky surveillance. Small objects (birds, insects, even seeds or debris) passing close to the camera lens appear to transit rapidly across the frame when filmed against the sky. The human brain misinterprets these foreground objects as larger, distant phenomena moving at impossible velocities. The repeated observation from the same location suggests the witness positioned themselves near an area with regular bird or insect activity.
06 Verdict
ANALYST VERDICT
This case is confidently explained as misidentification of natural phenomena. The white trails are atmospheric contrails, and the black spheres are birds or insects captured in the foreground of the video creating a false perception of distant high-speed objects. GEIPAN's 'B' classification is appropriate and well-justified. The case holds minimal significance beyond serving as an educational example of common misidentifications in amateur sky surveillance. The witness's willingness to film and report the phenomena demonstrates good civic engagement with official UFO reporting systems, even when the observations prove mundane. No unexplained elements remain, and the case requires no further investigation.
AI CONFIDENCE SCORE:
85%
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