CORROBORATED
CF-GEI-20070802575 CORROBORATED
The Rogny-les-Sept-Écluses Green Fireball
CASE FILE — CF-GEI-20070802575 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2007-08-02
Location Reported location of the sighting or event
Rogny-les-Sept-Écluses, Yonne, Bourgogne, France
Duration Estimated duration of the observed phenomenon
2 seconds
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
2
Country Country where the incident took place
FR
AI Confidence AI-generated credibility score based on source reliability, detail consistency, and corroboration
85%
On August 2, 2007, at approximately 1:00 AM, two witnesses in Rogny-les-Sept-Écluses, a commune in the Yonne department of Burgundy, France, observed a brief but striking phenomenon. The witnesses reported seeing a green luminous sphere moving through the night sky. The object exhibited unusual motion, spinning in a spiral pattern while following a descending trajectory before disappearing from view behind a hangar. The entire observation lasted approximately 2 seconds, and notably, no sound was heard during the event.
The case was officially investigated by GEIPAN (Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non Identifiés), the French government's UFO investigation unit operated by CNES (Centre National d'Études Spatiales). However, the investigation proved unsuccessful due to inability to establish contact with the witnesses for follow-up interviews. No other witnesses came forward from the surrounding area, leaving investigators with only the initial report and no corroborating testimony.
GEIPAN classified this case as 'C' (likely explained), concluding that the characteristics of the observation—specifically the 2-second duration and green coloration—are consistent with an unregistered meteor or bolide. The green color is particularly characteristic of meteors containing copper or nickel compounds. Despite this probable explanation, the case remains officially unresolved due to insufficient investigation caused by the lack of witness contact and detailed information.
02 Timeline of Events
2007-08-02 01:00
Initial Sighting
Two witnesses observe a green luminous sphere appearing in the night sky over Rogny-les-Sept-Écluses
01:00:00-01:00:01
Spiral Descent Observed
The green sphere exhibits unusual spiral motion while following a descending trajectory. No sound is heard throughout the observation.
01:00:02
Object Disappears
After approximately 2 seconds of observation, the luminous sphere disappears from view behind a hangar building
2007-08
GEIPAN Investigation Initiated
French official UFO investigation unit GEIPAN begins investigation into the reported sighting
2007-08 to 2007-09
Investigation Unsuccessful
GEIPAN investigators unable to establish contact with witnesses for detailed interviews. No additional witnesses found in the area.
Unknown
Case Classified as 'C'
GEIPAN classifies case as 'C' (likely explained as meteor), but notes investigation remains incomplete due to lack of witness contact
03 Key Witnesses
Anonymous Witness 1
Civilian
unknown
One of two witnesses who observed the phenomenon at 1:00 AM. No further contact established by investigators.
Anonymous Witness 2
Civilian
unknown
Second witness present during the observation. No further contact established by investigators.
04 Analyst Notes -- AI Processed
This case presents classic meteor/bolide characteristics that align well with the GEIPAN conclusion. The bright green coloration is a well-documented feature of meteors, particularly those with specific metallic content that ionizes during atmospheric entry. The brief 2-second duration is typical of meteor observations, as is the silent nature of the event (sound waves from meteors, if heard at all, typically arrive minutes after the visual phenomenon due to distance and atmospheric propagation).
The spiral descent pattern reported by the witnesses is the most intriguing aspect of this case. While tumbling meteors can create unusual visual effects, true spiral motion is less common in meteor observations. However, this could be a perceptual artifact caused by: (1) the witnesses' viewing angle as the meteor crossed their field of vision, (2) fragmentation of the meteor creating a helical debris trail, or (3) simple misperception during a brief, unexpected event. The investigation's failure to conduct detailed witness interviews means we cannot verify or clarify this specific detail. The complete absence of sound strongly supports the meteor hypothesis, as a low-altitude craft or drone would almost certainly produce audible noise. The fact that no other witnesses reported the phenomenon is not unusual for brief meteor events, especially at 1:00 AM when most people are asleep.
05 Theory Comparison
BELIEVER ANALYSIS
Controlled Descent of Unknown Craft
A minority interpretation might suggest the spiral descent pattern indicates controlled flight rather than ballistic motion. However, this theory struggles to explain the brief 2-second duration, complete silence, and green luminosity that align so precisely with meteor characteristics. The lack of any hovering, course changes, or extended observation period makes controlled flight highly unlikely.
SKEPTIC ANALYSIS
Perceptual Misidentification of Common Meteor
The reported 'spiral' motion may be a misperception or optical illusion created by the witnesses' viewing angle, eye movement during tracking, or the meteor's tumbling rotation. Untrained observers viewing brief, unexpected phenomena often report motion characteristics that differ from objective reality. The meteor explanation accounts for all observed features except the spiral, which likely results from perceptual factors during a 2-second observation in darkness.
06 Verdict
ANALYST VERDICT
This case is most confidently explained as a green fireball meteor, likely a small bolide entering Earth's atmosphere. The 2-second duration, bright green luminosity, silent passage, and sudden disappearance behind terrain all align perfectly with documented meteor characteristics. The confidence level in this explanation is approximately 85-90%. The spiral motion remains the only anomalous detail, but insufficient witness testimony prevents detailed analysis. This case holds minimal significance beyond serving as an example of a well-identified natural phenomenon that initially appeared unusual to witnesses unfamiliar with meteor behavior. The GEIPAN 'C' classification is appropriate and justified.
AI CONFIDENCE SCORE:
85%
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