CORROBORATED
CF-GEI-20091202471 CORROBORATED
The Montpellier Blue-Green Fireball
CASE FILE — CF-GEI-20091202471 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2009-12-11
Location Reported location of the sighting or event
Montpellier, Hérault, France
Duration Estimated duration of the observed phenomenon
2-3 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 December 11, 2009, a single witness in Montpellier, France observed a brief but striking luminous phenomenon traverse the night sky from east to west over a period of 2-3 seconds. The object was characterized by a distinctive blue-turquoise luminous trail that followed the main light source. The witness experienced no difficulty in forming an initial hypothesis about what they had observed.
GEIPAN (Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non-identifiés), France's official UAP investigation organization operated by CNES (the French space agency), investigated this sighting and assigned it a classification of 'B' - indicating a probable explanation with good consistency. The brief duration, directional trajectory, distinctive coloration, and luminous trail are all consistent with a specific natural phenomenon.
The witness's own assessment aligned with the official investigation's conclusion. The turquoise-blue coloration of the trail is particularly diagnostic, as this specific color signature is associated with certain atmospheric entry events involving metallic compositions. The east-to-west trajectory and extremely brief observation window further support the identification.
02 Timeline of Events
Evening, December 11, 2009
Initial Observation
Witness observes luminous phenomenon beginning its traverse across the sky from east to west
+0 to 2-3 seconds
Blue-Turquoise Trail Visible
Distinctive blue-turquoise luminous trail follows the main light source as it crosses the sky
+3 seconds
Phenomenon Ends
Object completes its visible trajectory and disappears, total observation duration 2-3 seconds
After observation
Witness Self-Assessment
Witness forms hypothesis that they observed an atmospheric reentry of a meteorite
Post-2009
GEIPAN Investigation
Official investigation by GEIPAN concludes probable atmospheric reentry, assigns 'B' classification
03 Key Witnesses
Anonymous Witness 1
Civilian observer
medium
Single witness in Montpellier who correctly self-identified the phenomenon as likely meteoritic
"Not directly quoted in available documentation"
04 Analyst Notes -- AI Processed
This case represents a textbook example of effective witness observation and accurate self-assessment. The witness correctly identified what they were seeing even before official investigation, demonstrating good scientific literacy. The GEIPAN 'B' classification indicates high confidence in the explanation with good data consistency, though not quite reaching the certainty threshold of 'A' classification (certain identification).
The distinctive blue-turquoise coloration is a critical identifying feature. Meteorite atmospheric entries produce different colors based on their composition - green-blue hues typically indicate the presence of magnesium or copper compounds burning in the upper atmosphere. The 2-3 second duration is consistent with a meteor's visible passage through the atmosphere at typical velocities (11-72 km/s). The east-west trajectory provides no anomalous characteristics and fits expected meteor approach angles. Single-witness reports of brief astronomical phenomena are common and generally reliable when the witness provides specific observational details like color and direction.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Bolide (Bright Meteor)
The phenomenon matches the characteristics of a bolide - an exceptionally bright meteor that produces a visible trail and often displays distinctive colors. The brief 2-3 second observation, east-west trajectory, and turquoise trail are textbook bolide features. No unusual or anomalous characteristics require alternative explanations.
06 Verdict
ANALYST VERDICT
This sighting is almost certainly explained as an atmospheric entry event - most likely a meteorite or space debris. The GEIPAN 'B' classification (probable explanation) is appropriate and well-supported by the evidence. The witness's description matches known meteor characteristics precisely: brief duration, linear trajectory, and diagnostic blue-turquoise coloration indicating metallic composition. While this case holds minimal mystery value, it demonstrates the importance of official investigation infrastructure like GEIPAN in distinguishing mundane astronomical events from genuinely anomalous phenomena. The case serves educational value in showing what a correctly identified atmospheric entry looks like in witness testimony.
AI CONFIDENCE SCORE:
85%
07 Community Discussion
VIEW ALL >// NO COMMENTS YET
Be the first field agent to contribute analysis on this case.
08 Live Chat 1 ROOM
ENTER LIVE CHAT
Real-time discussion with other field agents analyzing this case.