Characteristics of Asteroid 2026 FB6

Asteroid 2026 FB6 is classified as an Apollo-class near-Earth object (NEO), a group of asteroids defined by orbits that cross the path of the Earth and have semi-major axes greater than 1 AU.[1] Based on current orbital data, the object possesses a semi-major axis of approximately $1.658\mathrm{\text{AU}}$ and an eccentricity of $0.398$, resulting in a perihelion distance of $0.999\mathrm{\text{AU}}$.[1] Its Earth Minimum Orbit Intersection Distance (MOID) is calculated at $0.0141\mathrm{\text{AU}}$, or roughly $2.1$ million kilometers, which places it well outside the range of immediate impact risk.[1]

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The physical dimensions of 2026 FB6 are estimated based on its absolute magnitude ($H$) of $27.82$, suggesting a small body likely measuring only tens of meters in diameter.[1] Because the observational arc is currently limited to approximately five days, the orbital solution carries a high condition code, indicating significant uncertainty that requires ongoing astrometric tracking to refine.[1] NASA and international planetary defense programs monitor such objects to improve dynamical models and enhance long-term risk assessment strategies.[2] While the asteroid's velocity is high—reported at approximately $34,000\mathrm{\text{mph}}$—it poses no threat to Earth, serving instead as a valuable data point for scientists studying the population of small near-Earth bodies.[2]

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