Single-sensor / range-parallax uncertainty critique (Mick West / Metabunk; echoed by AARO).
documentedsource_actorScientific Instrumentation & Sensor Data
The skeptical counter-analysis that the extreme-g estimates collapse under range, size, and parallax uncertainty: a featureless object of unknown size/distance can mimic mirroring, rising-to-meet, and apparent hypersonic departure, and the 0.78-s radar drop rests on a single, broken-looking Aegis track plausibly explained as artifact.
Mick West / Metabunk: Fravor likely overestimated range to a smaller, closer, near-stationary object (e.g., balloon), producing illusory 'mirroring'; the ATFLIR departure matches the camera tracker (~0.25°/s) losing lock rather than a 13,000-mph dash. The estimates are sensitive to inputs (size, distance, altitude) that no platform pinned precisely. AARO Historical Record Report Vol. 1 (Mar 2024) generalizes: kinematic observations 'could be the result of sensor errors, spoofing, or observer misperception,' and unresolved cases reflect data limitations rather than anomalous physics. Tagged competing-documented: the critique is a real, published alternative — but pilots and SCU reject it, so it does not 'debunk' the case outright.