DISCLOSURE / FILE
An IC partner analysis prepared for AARO assessing a February 2022 airborne object seen over Cheyenne Mountain, Colorado, by five Army service members as possible backscattering of sunlight.
ICA-UAP-D001, Analysis: Colorado Springs UAP Incident, 2022
An IC partner analysis prepared for AARO assessing a February 2022 airborne object seen over Cheyenne Mountain, Colorado, by five Army service members as possible backscattering of sunlight.
On 15 February 2022, five U.S. Army service members at Fort Carson, Colorado reported an airborne object over Cheyenne Mountain that they described as resembling an "angular, non-symmetrical potato made of uneven panels." An AARO IC partner assessed with low confidence that the object was possibly backscattering of sunlight reflecting off snow-covered ground and illuminating low-level clouds. The assessment notes no anomalous data or characteristics were recorded and that the event did not represent an unknown adversarial capability. The incident was reported to AARO in 2023 and remains unresolved as of June 2026.
An airborne object over Cheyenne Mountain, Colorado /was observed by five U.S. Army service members at Fort Carson, /Colorado at 0935 MNT on 15 February 2022, was possibly /backscattering of sunlight.p.3
The witnesses describe the object as roughly the size of a large /jet and resembling an angular, non-symmetrical potato made of /uneven panels, which was completely stationary about 300-500 feet /above Cheyanne Mountain while slowly changing shape.p.3
It had a /slightly translucent, shimmering white appearance, with defined /edges and a milky shimmer that reflected sunlight.p.3
No anomalous data or characteristics were recorded or /assessed, and the event did not represent an unknown adversarial /capability.p.3
Backscattering is the phenomenon where sunlight /reflects off the snow-covered ground and reflects upwards, /scattering through the atmosphere and illuminate low-level clouds.p.4
No aircraft or balloons were noted active in or around /Cheyenne Mountain during the time the witnesses saw the airborne /object.p.4
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- - - - - SUBJECT: USA/Colorado: An Airborne Object Over Cheyenne Mountain in February 2022 was Possible Backscattering of Sunlight page 1 of 4
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- - I ■ ■ page 4 /feet (about 2,000 to 7,000 meters) and can create a dense, uniform /layer across the sky or thin and wispy. While they often appear /opaque, altostratus clouds can permit some sunlight to pass /through, resulting in a luminous effect. Typically, the presence of /altostratus clouds suggests that precipitation is imminent, as they /may bring light rain or snow. / / Analyst Note: Backscattering is the phenomenon where sunlight /reflects off the snow-covered ground and reflects upwards, /scattering through the atmosphere and illuminate low-level clouds. /This is especially noticeable when the sun is low over the horizon. / No aircraft or balloons were noted active in or around /Cheyenne Mountain during the time the witnesses saw the airborne /object. / page 4 of 4
Concatenated page-by-page transcript. Born-digital pages came through pdf.js; scanned pages were transcribed by Claude vision OCR. Pages marked unreadable failed multiple OCR retries (heavy redaction, microfilm artifacts, or blank separators) and are kept in place for audit.
- - - - - SUBJECT: USA/Colorado: An Airborne Object Over Cheyenne Mountain in February 2022 was Possible Backscattering of Sunlight page 1 of 4
= es page 2 | Po EO ee ee Po Pe ee Pe ee P| ee ee Po ee ee Pe ee fF Pe ee ee ee Pe ee ee ee ee Po Pe | ee Po Pe ee ee | ee ee ee Pe ee ee ee ee = page 2 of 4
- - - - - - page 3 An airborne object over Cheyenne Mountain, Colorado /was observed by five U.S. Army service members at Fort Carson, /Colorado at 0935 MNT on 15 February 2022, was possibly /backscattering of sunlight. has low confidence in this /assessment based on uncertainty in the field of view of each /witness, amount of snow cover, and exact elevation and amount of /cloud cover. No anomalous data or characteristics were recorded or /assessed, and the event did not represent an unknown adversarial /capability. / / According to the accounts of five U.S. Army service /members On 15 February 2022, an airborne object was observed /approximately 6 miles to the west over and slightly behind the /Cheyenne Mountain silhouette for approximately 30 - 180 seconds. /The witnesses describe the object as roughly the size of a large /jet and resembling an angular, non-symmetrical potato made of /uneven panels, which was completely stationary about 300-500 feet /above Cheyanne Mountain while slowly changing shape. It had a /slightly translucent, shimmering white appearance, with defined /edges and a milky shimmer that reflected sunlight. The witnesses /noted that the sky was clear, and despite keeping their eyes on the /object, it suddenly disappeared. / / At 0945 MST on February 15, 2022, in Colorado Springs, /the sun was positioned at an altitude of about 27.5 over the /horizon in the southeast sky and roughly at an azimuth of 125, /casting shadows toward the northwest and providing soft, angled /light. According historical the National Water and Climate Center /reporting, snow depth on Cheyenne Mountain likely ranged from 6 to /12 inches. Although witnesses reported clear, blue skies, multiple /weather reports, including those from AFWA and Weather Underground, /indicated the presence of clouds, suggesting that the skies were /partly to mostly cloudy that morning. / / Analysis possibly indicates that the positioning of the /sun in relation to Cheyenne Mountain would allow for backscattering /of sunlight reflecting off snow-covered ground. This reflection /could illuminate low-level clouds in the vicinity, which might /account for the visibility of the object followed by its sudden /disappearance. It is possible that either the clouds or the sun /shifted slightly, causing the reflection to vanish. has low /confidence in this assessment based on uncertainty in the field of /view of each witness, and exact level of cloud cover. / / Analyst Note: Altostratus clouds are a kind of mid-level cloud /known for their consistent gray or blue-gray appearance. These /clouds usually develop at altitudes ranging from 6,500 to 23,000 page 3 of 4
- - I ■ ■ page 4 /feet (about 2,000 to 7,000 meters) and can create a dense, uniform /layer across the sky or thin and wispy. While they often appear /opaque, altostratus clouds can permit some sunlight to pass /through, resulting in a luminous effect. Typically, the presence of /altostratus clouds suggests that precipitation is imminent, as they /may bring light rain or snow. / / Analyst Note: Backscattering is the phenomenon where sunlight /reflects off the snow-covered ground and reflects upwards, /scattering through the atmosphere and illuminate low-level clouds. /This is especially noticeable when the sun is low over the horizon. / No aircraft or balloons were noted active in or around /Cheyenne Mountain during the time the witnesses saw the airborne /object. / page 4 of 4