CORROBORATED
CF-GEI-20100902683 CORROBORATED
The Saint-Jacques-sur-Darnétal Orange Orb
CASE FILE — CF-GEI-20100902683 — CASEFILES CLASSIFIED ARCHIVE
Date Date when the incident was reported or occurred
2010-09-10
Location Reported location of the sighting or event
Saint-Jacques-sur-Darnétal, Seine-Maritime, France
Duration Estimated duration of the observed phenomenon
Several minutes
Object Type Classification of the observed object based on witness descriptions
orb
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 the evening of September 10, 2010, around 21:00 hours, a motorist driving through Saint-Jacques-sur-Darnétal in the Seine-Maritime department of Haute-Normandie observed an intriguing luminous phenomenon. The witness reported seeing an orange-red luminous sphere moving slowly through the night sky. The object's appearance was described as initially resembling "a very large star" with yellow-white coloring that transitioned to yellow-orange. The shape appeared ovoid, and the object seemed to hover or remain nearly stationary during observation.
The witness watched as the mysterious light changed color from its initial yellow-white appearance to a yellow-orange hue before the object suddenly disappeared from view. The extinction appeared instantaneous rather than gradual, as if the light source had been extinguished. The motorist found the phenomenon sufficiently unusual to report it to GEIPAN, France's official UFO investigation service operated by CNES (Centre National d'Études Spatiales).
GEIPAN investigators conducted an analysis of the sighting, examining the reported characteristics including the object's appearance, behavior, trajectory, and the meteorological conditions at the time. The investigation revealed that the observed trajectory was consistent with the prevailing wind direction on that evening, a critical detail that would prove instrumental in determining the likely identity of the phenomenon.
02 Timeline of Events
21:00
Initial Sighting While Driving
Motorist notices an unusual luminous object in the night sky over Saint-Jacques-sur-Darnétal. The light initially appears as a very large star with yellow-white coloring.
21:00-21:05
Color Transition Observed
The witness observes the object's color changing from yellow-white to yellow-orange. The shape appears ovoid, and the object seems to be moving slowly or hovering nearly stationary in the sky.
21:05
Sudden Disappearance
The luminous object suddenly disappears from view, as if extinguished instantaneously rather than fading gradually. The witness finds this sufficiently unusual to later report to GEIPAN.
Post-incident
Official Report Filed
Witness submits report to GEIPAN (CNES), providing details of the observation including color changes, shape, movement pattern, and disappearance mode.
Investigation Period
GEIPAN Analysis Completed
GEIPAN investigators analyze the report, correlate trajectory with meteorological wind data, and classify the case as 'B' - probable Thai lantern with high confidence based on all observed characteristics.
03 Key Witnesses
Anonymous Witness 1
Motorist/civilian driver
medium
Motorist traveling through Saint-Jacques-sur-Darnétal on the evening of September 10, 2010. Sufficiently detail-oriented to note color changes and movement characteristics.
"A luminous orange-red sphere moving slowly, resembling a very large star with yellow-white light turning to yellow-orange, ovoid in shape and appearing immobile before suddenly disappearing."
04 Analyst Notes -- AI Processed
This case represents a textbook example of a common aerial phenomenon that frequently generates UFO reports: the Chinese/Thai lantern. GEIPAN's classification of this case as 'B' (probable identification with high confidence) reflects the strong correlation between the observed characteristics and the known behavior of sky lanterns. The investigative methodology demonstrates proper analytical procedure: the witness's description of color transition (yellow-white to yellow-orange) matches the typical appearance of a paper lantern's flame as it burns; the ovoid shape corresponds to the elongated form of these devices; the apparent hovering matches the slow ascent rate of hot-air lanterns; and crucially, the trajectory alignment with wind direction provides compelling physical evidence.
The sudden disappearance merits particular attention. Sky lanterns typically extinguish when the fuel source is depleted or when the paper catches fire and the structural integrity fails, both of which produce rapid extinction rather than gradual fading. The witness credibility appears adequate—the report came from a motorist who was sufficiently observant to note color changes and movement characteristics. However, the single-witness nature of the sighting and the lack of corroborating reports from the area limit the evidential value. The timeframe (21:00 hours in September) is consistent with both the darkness necessary for lantern visibility and the typical timing of evening celebrations when such devices are commonly released.
05 Theory Comparison
BELIEVER ANALYSIS
SKEPTIC ANALYSIS
Conventional Aircraft or Drone Misidentification
While GEIPAN concluded sky lantern, alternative conventional explanations could include a small aircraft with landing lights at an unusual angle, a drone equipped with colored LEDs, or even an illuminated balloon. The color change could result from viewing angle changes relative to a fixed light source, and the sudden disappearance could be explained by the object moving behind terrain or clouds. However, the trajectory correlation with wind direction strongly favors the lighter-than-air explanation over powered flight.
06 Verdict
ANALYST VERDICT
GEIPAN's conclusion that this sighting was "probably the observation of the evolution of a Thai lantern" is well-supported by the evidence and represents the most parsimonious explanation. Every reported characteristic—the color (orange-red, transitioning from yellow-white), the shape (ovoid), the movement pattern (slow, appearing nearly stationary), the trajectory (consistent with wind direction), and the disappearance mode (sudden extinction)—aligns perfectly with the known behavior of sky lanterns. The confidence level in this explanation is high (approximately 85-90%). This case serves as a valuable reference example for distinguishing sky lanterns from genuinely anomalous phenomena and demonstrates the importance of meteorological data in UFO investigation. While the witness's experience was undoubtedly intriguing, no evidence suggests anything beyond a misidentification of a conventional object. The case holds minimal significance for UAP research but considerable value for investigator training and public education about common aerial phenomena.
AI CONFIDENCE SCORE:
85%
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