CORROBORATED
CF-GEI-20100602600 CORROBORATED
The Vergenne Green Meteor Incident
CASE FILE — CF-GEI-20100602600 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2010-06-02
Location Reported location of the sighting or event
La Vergenne, Haute-Saône, Franche-Comté, France
Duration Estimated duration of the observed phenomenon
1-2 seconds
Object Type Classification of the observed object based on witness descriptions
light
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 June 2, 2010, at approximately 20:30-20:45 local time, a single witness in La Vergenne, Haute-Saône observed a brief but striking aerial phenomenon. The witness reported seeing an ovoid-shaped object displaying a distinctive pale fluorescent green color traveling at high velocity across the evening sky. The object originated from the south and traveled in a straight, linear trajectory toward the north-northeast.
The observation was remarkably brief, lasting only 1-2 seconds. The witness noted specific characteristics: the object moved at rapid speed, maintained a rectilinear path, and produced no audible sound. Significantly, no trailing debris or tail was observed following the object, though its appearance was described as comet-like. The fluorescent pale green coloration is particularly noteworthy as this is a characteristic signature of atmospheric entry events.
GEIPAN (Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non Identifiés), France's official UFO investigation service operated by CNES (Centre National d'Études Spatiales), conducted an investigation and classified this case as 'B' - indicating a probable identification with good consistency. Their analysis concluded this was most likely an atmospheric re-entry of a meteor, based on the brief duration, high velocity, linear trajectory, and especially the characteristic pale green fluorescent color associated with atmospheric friction and ionization.
02 Timeline of Events
20:30-20:45
Initial Sighting
Witness observes a fluorescent pale green ovoid object appearing from the southern sky
20:30-20:45 + 1-2 sec
Object Transit
Object travels in straight line trajectory from south to north-northeast at high velocity with no audible sound
20:30-20:45 + 2 sec
Object Disappears
Object vanishes from view after 1-2 second observation window, no trailing debris observed
Post-incident
GEIPAN Investigation
Official investigation by French space agency GEIPAN conducts analysis of witness testimony and physical characteristics
Post-investigation
Classification as Class B
GEIPAN classifies case as 'B' - probable atmospheric re-entry of a meteor based on characteristic green color and flight dynamics
03 Key Witnesses
Anonymous Witness 1
Civilian observer
medium
Single witness who observed the phenomenon from La Vergenne, Haute-Saône. Provided detailed account including specific directional information, color description, and duration estimate.
"Un objet de forme ovoide et de couleur vert pâle fluorescent... vient du Sud et se dirige Nord-Nord-Est selon une trajectoire rectiligne et à vitesse rapide. Aucun bruit n'est entendu."
04 Analyst Notes -- AI Processed
This case presents strong indicators of a natural astronomical phenomenon. The pale fluorescent green color is a well-documented signature of meteoric atmospheric entry, caused by the ionization of atmospheric gases and the vaporization of metallic content (particularly magnesium and nickel) in the meteoroid. The extremely brief duration (1-2 seconds), high velocity, and straight-line trajectory are all consistent with a meteor or bolide rather than conventional aircraft or other man-made objects.
The witness credibility appears adequate for this type of observation - the report contains specific details about direction, color, duration, and the absence of sound or trailing debris. The lack of a visible trail is somewhat unusual for larger meteors but can occur with smaller meteoroids or when viewing angles don't favor trail visibility. GEIPAN's classification as 'B' (probable identification) rather than 'A' (certain identification) appropriately reflects the single-witness nature and brief observation window, though the physical characteristics strongly support the meteor hypothesis. The timing (evening, June) and location don't correspond to any major meteor shower peaks, suggesting a sporadic meteor event.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Possible Pyrotechnic or Flare
While the meteor explanation is most probable, alternative explanations could include a green signal flare, military pyrotechnics, or other man-made aerial illumination device. However, this theory is undermined by the reported high velocity, the straight trajectory over considerable distance, and the absence of any reported military or civilian activities in the area. The brief duration also argues against most pyrotechnic devices, which typically have longer burn times. The meteor hypothesis remains far more consistent with the observed characteristics.
06 Verdict
ANALYST VERDICT
This case represents a highly probable atmospheric re-entry of a meteor or small meteoroid. The combination of fluorescent green coloration, extremely brief duration, high velocity, and linear trajectory provides compelling evidence for this natural explanation. While the single-witness account and very short observation period prevent absolute certainty, the physical characteristics described align precisely with known meteoric phenomena. GEIPAN's 'B' classification is appropriate and well-justified. This case holds minimal significance for anomalous aerial phenomena research but serves as a good example of how distinctive physical characteristics (particularly the green color) can provide strong diagnostic indicators for atmospheric entry events. The lack of multiple witnesses or physical evidence (no recovered meteorites reported) is typical for small, high-altitude atmospheric entries.
AI CONFIDENCE SCORE:
85%
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