Characteristics of Asteroid 2026 GU

Asteroid 2026 GU is categorized as an Amor-class near-Earth object (NEO) and is officially designated as a Potentially Hazardous Asteroid (PHA).[1] This classification is determined by the object's orbital geometry, specifically its potential to approach Earth within a distance of 0.05 astronomical units (AU) and its absolute magnitude, which suggests a significant size.[2] Based on current observational data, the asteroid is estimated to have a diameter ranging between 150 and 300 meters.[1]

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The orbital trajectory of 2026 GU is currently defined by a short observational arc of approximately five days, resulting in a high degree of uncertainty, indicated by a condition code of 8.[1] On 14 April 2026, the asteroid is projected to make a close approach to Earth at a distance of approximately 0.09884 AU, which is equivalent to roughly 38.4 lunar distances or 14.8 million kilometers.[1] Despite its classification as a PHA, scientific consensus indicates that there is no identified impact threat associated with this specific encounter.[1] Astronomers emphasize that continued tracking is essential to refine the orbital parameters and reduce the current uncertainty levels inherent in short-arc observations.[1] [3]

Would you like to learn more about the criteria used by NASA and the Minor Planet Center to classify asteroids as "Potentially Hazardous," or perhaps explore the methods astronomers use to refine the orbits of newly discovered near-Earth objects?