ICA-UAP-D001 is a four-page declassified Intelligence Community analysis released in PURSUE Release 03 on June 12, 2026. The originating body is identified as an All-domain Anomaly Resolution Office (AARO) Intelligence Community partner. The document concerns an airborne object observed on 15 February 2022 near Cheyenne Mountain in Colorado Springs, Colorado, reported to AARO by U.S. military service members the following year.12
Provenance and Chain of Custody
The document is designated ICA-UAP-D001, marking it as the first in a numbered series of Intelligence Community assessments produced in support of AARO's all-domain anomaly resolution mission. The analytical work was carried out by an AARO IC partner -- the precise agency is not named in the publicly released version. The incident itself was not filed with AARO immediately after it occurred. Witnesses reported the 15 February 2022 observation to AARO in 2023, more than a year after the fact. The document was publicly released as part of the Department of War's PURSUE Release 03 on June 12, 2026.3
The four-page format is consistent with a focused, single-incident IC assessment: it sets out the observation parameters, surveys available meteorological and environmental data, proposes a candidate explanatory mechanism, and then explicitly bounds the confidence level of that finding. The record was transferred to AARO's custody as part of the broader legislative mandate for the office to collect, assess, and attempt to resolve legacy and current UAP reports from across the military services and intelligence community.
The Fort Carson Observation
On the morning of 15 February 2022, five U.S. Army service members stationed at Fort Carson, Colorado observed an unidentified airborne object at approximately 0935 Mountain Time. Fort Carson lies on the southern edge of Colorado Springs, and the object appeared roughly six miles to the west, positioned over and slightly behind the ridgeline of Cheyenne Mountain. The observation lasted between 30 and 180 seconds -- a significant range, suggesting the witnesses did not synchronize accounts in real time.
The witnesses described the object in terms that are geometrically specific but physically unusual. It was estimated to be roughly the size of a large jet aircraft. Its shape was characterized as angular and non-symmetrical, with an uneven, panel-like structure -- comparisons to a potato were recorded. The object appeared to sit at an altitude of 300 to 500 feet above the mountain ridgeline and remained completely stationary throughout the observation. Despite being motionless, witnesses described it as constantly and slowly changing shape. The surface appeared slightly translucent, exhibiting a shimmering white color with defined edges and what was described as a milky shimmer that appeared to reflect sunlight.
The termination of the sighting was abrupt. Despite witnesses maintaining continuous visual attention on the object, it suddenly disappeared. No sound was reported. The document notes that no aircraft or balloons were identified as operating in or around Cheyenne Mountain during the observation window, which effectively removes the most routine explanations from contention.
Environmental and Meteorological Context
The analytical document incorporates solar position data, historical snow depth records, and independent weather reporting to construct a physical model of conditions at the time of the sighting. At 0945 MST on 15 February 2022, the sun stood at approximately 27.5 degrees of altitude above the horizon, positioned in the southeast sky at an azimuth of roughly 125 degrees. This geometry placed the sun relatively low, projecting angled light toward the northwest across the Colorado Springs area.
Cheyenne Mountain's estimated snow depth on that date was 6 to 12 inches, drawn from National Water and Climate Center historical records. The mountain's snow-covered surface is central to the proposed explanatory mechanism.
Cloud conditions at the time of the sighting present a complication that the document explicitly flags. Witnesses reported clear, blue skies. However, multiple independent weather data sources -- including Armed Forces Weather and Aeronautics (AFWA) reporting and Weather Underground records -- indicated partly to mostly cloudy conditions that morning. The cloud type identified in the meteorological record is altostratus: mid-level clouds occurring at altitudes between roughly 6,500 and 23,000 feet. Altostratus clouds are characteristically gray or blue-gray, forming either uniform dense layers or thin wispy patterns. They are typically opaque in appearance but can permit sunlight to diffuse through with a luminous or brightened effect. Their presence in the meteorological record is generally associated with imminent light precipitation, such as rain or snow.
The discrepancy between witness sky descriptions and weather station data is not resolved in the document. The analysts note it as a constraint on confidence without adjudicating which account is more reliable.
The Backscattering Hypothesis
The IC partner's central analytical finding is that the observed object possibly resulted from backscattering of sunlight reflecting off the snow-covered ground, which could have illuminated low-level clouds in the vicinity of Cheyenne Mountain. The mechanism works as follows: sunlight strikes the snow surface and reflects upward into the atmosphere, where it scatters into low-altitude cloud formations from below. This "backscattering" effect is most pronounced when the sun is positioned at a low angle above the horizon -- conditions that were present at 0945 MST on February 15, when the sun sat at 27.5 degrees altitude. Under this model, a patch of cloud illuminated from below by reflected light from a snow-covered peak could appear bright, shimmering, and roughly defined against the sky, potentially explaining the object's translucent, milky-white appearance and its apparent stationary position anchored near the mountain.
The hypothesis further accounts for the object's sudden disappearance: a slight shift in cloud cover, a small change in the sun's position, or a momentary shadow from higher clouds could extinguish the backscattering effect rapidly, causing the illuminated cloud patch to become invisible against the broader sky without any physical movement of the object.
The shape-change behavior -- witnesses describing the object as constantly and slowly changing form -- is also consistent with the behavior of cloud matter, which continuously deforms under atmospheric dynamics even when a formation appears broadly stationary from a distant viewpoint.
Confidence Assessment and Analytical Limitations
The document is explicit that its finding carries low confidence. The analysts identify several unresolved variables that prevent a higher confidence determination:
The field of view of each individual witness was not precisely established, meaning the analysts could not fully reconstruct what each person was observing or confirm that all five witnesses were looking at identical phenomena. No precise elevation data was recorded for the observation point. The actual extent of cloud cover at the moment of observation is contested between witness accounts and meteorological data. Witness positioning relative to the object was not confirmed with sufficient specificity to model the geometry of the observation accurately.
Taken together, these gaps mean the backscattering explanation, while plausible and meteorologically grounded, cannot be confirmed. The analysis does not identify any anomalous data or unusual physical characteristics beyond those reportable through conventional atmospheric optics. The event is not assessed as indicating an unknown adversarial capability.
What The Record Supports
ICA-UAP-D001 represents a formal, documented attempt by an AARO IC partner to resolve a multi-witness military sighting using solar positioning, historical meteorological data, and atmospheric physics. The record establishes that five Army service members at Fort Carson observed something they could not identify and reported it through official channels. It establishes a physically grounded candidate explanation -- sunlight backscattering illuminating altostratus cloud matter over snow-covered Cheyenne Mountain -- and it establishes that this explanation carries only low analytical confidence.
What the record does not establish: it does not confirm the identity of the object. It does not rule out alternative explanations. It does not characterize the observation as involving an unknown technology or adversarial platform. Per the official release, the incident remains unresolved as of June 2026. The document is a contribution to AARO's case file on this event, not a final determination.