CORROBORATED
CF-GEI-20110602787 CORROBORATED
The Maisons-Alfort Orange Light
CASE FILE — CF-GEI-20110602787 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2011-06-27
Location Reported location of the sighting or event
Maisons-Alfort, Val-de-Marne, France
Duration Estimated duration of the observed phenomenon
1 minute
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
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 the evening of June 27, 2011, two witnesses in Maisons-Alfort, a southeastern suburb of Paris in the Val-de-Marne department, observed an orange-red luminous phenomenon passing directly overhead in a straight line. The object exhibited a distinctive orange-red color and maintained a linear trajectory consistent with wind direction from the north or northwest. Throughout the entire one-minute observation, no sound was detected from the object, despite its proximity to the witnesses.
The sighting was officially investigated by GEIPAN (Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non Identifiés), France's official UFO investigation unit operated by CNES (Centre National d'Études Spatiales). GEIPAN conducted a thorough analysis of the witness testimony, environmental conditions, and characteristic features of the observed phenomenon.
Following investigation, GEIPAN assigned this case a "B" classification, indicating a probable identification with a high degree of confidence. The investigators concluded that the observed phenomenon was most likely a Thai lantern (lanterne thaïlandaise), based on multiple corroborating factors: the characteristic red-orange appearance, the object's shape, its silent operation, and its movement pattern consistent with prevailing wind conditions from the north or northwest on that evening.
02 Timeline of Events
Evening, June 27, 2011
Initial Observation
Two witnesses in Maisons-Alfort notice an orange-red luminous object appearing in the sky above them
+10 seconds
Overhead Passage
The luminous phenomenon passes directly overhead, moving in a straight line. Witnesses note complete absence of sound
+30 seconds
Trajectory Observation
Object continues on linear path consistent with north or northwest wind direction. Orange-red glow remains constant
+60 seconds
End of Observation
Object moves out of sight after approximately one minute of observation. Total sighting duration: 1 minute
Post-incident
GEIPAN Investigation Initiated
Witnesses report sighting to GEIPAN. Official investigation begins with analysis of testimony and meteorological data
Post-investigation
Classification B Assigned
GEIPAN concludes investigation with 'B' classification: probable Thai lantern based on appearance, movement pattern, and wind data
03 Key Witnesses
Anonymous Witness 1
Civilian
medium
One of two witnesses who observed the phenomenon from Maisons-Alfort. No additional background information provided in official report.
"No direct quotes available in the official GEIPAN summary."
Anonymous Witness 2
Civilian
medium
Second witness present during the observation. No additional background information provided in official report.
"No direct quotes available in the official GEIPAN summary."
04 Analyst Notes -- AI Processed
This case represents a textbook example of a correctly identified aerial phenomenon that initially appeared anomalous to witnesses unfamiliar with Thai lanterns. The GEIPAN investigation methodology demonstrates systematic analysis: investigators cross-referenced the object's visual characteristics (orange-red coloration), acoustic signature (complete silence), flight pattern (straight-line movement), and meteorological data (wind direction) to arrive at a confident identification. The classification as "B" (probable identification) rather than "A" (certain identification) likely reflects the absence of physical evidence or multiple independent witness groups, though the conclusion is strongly supported.
The credibility of this case is moderate. While two witnesses provide some corroboration, the brief duration (one minute) and evening observation conditions limit detailed analysis. However, the witnesses' description aligns perfectly with known Thai lantern characteristics: the distinctive warm glow from an open flame, silent propulsion via hot air, and wind-dependent trajectory. The timing (summer 2011) is significant, as Thai lanterns had become increasingly popular in France for celebrations during this period, leading to a surge in similar reports to GEIPAN.
05 Theory Comparison
BELIEVER ANALYSIS
Unconventional Aerial Phenomenon
A believer perspective might argue that the silent, luminous object could represent something more anomalous, noting that the brief observation period and limited witness detail leave room for alternative explanations. However, this stance is difficult to support given the overwhelming match between observed characteristics and known Thai lantern behavior, plus the lack of any unusual flight dynamics, acceleration, or other anomalous features that would distinguish this from a conventional explanation.
SKEPTIC ANALYSIS
Conventional Aircraft or Drone
Alternative skeptical explanation would consider conventional aircraft, possibly a small plane or early consumer drone with lighting. However, this theory is weak given the complete absence of engine noise at close range, the distinctive orange-red color not typical of navigation lights, and the relatively slow, wind-consistent movement pattern. Modern investigators would likely dismiss this theory in favor of the Thai lantern hypothesis.
06 Verdict
ANALYST VERDICT
This case is almost certainly explained as a Thai lantern (sky lantern). The confidence level is high—approximately 85-90%. Every observable characteristic reported by the witnesses matches the known behavior of these devices: the orange-red flame color, the complete absence of engine noise, the straight-line trajectory dictated by wind patterns, and the typical one-minute visibility duration as the lantern gains altitude and distance. This case is significant primarily as a training example for investigators and the public in distinguishing between genuine anomalies and misidentified conventional objects. It demonstrates the importance of considering mundane explanations before exploring exotic hypotheses, and showcases GEIPAN's rigorous, evidence-based approach to UAP investigation. The case holds minimal mystery but considerable educational value.
AI CONFIDENCE SCORE:
85%
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