(2011 TK5)
Tracked by NASA JPL Near-Earth Object Web Service (NeoWs), (2011 TK5) is a S-type (Silicate Stony) body measuring between 69.59m and 155.61m in diameter. On 2026-10-20, it completes a cislunar approach at 56.96 Lunar Distances (21,904,144.1 km) with a relative heliocentric velocity of 10.87 km/s.
(2011 TK5) (JPL ID 3581556) is a S-type (Silicate Stony) Near-Earth Asteroid spanning 69.6m–155.6m (mean 112.6m). On 2026-10-20, it transits Earth's cislunar surveillance sector at 56.957 Lunar Distances (21,904,144 km) with a relative velocity of 10.87 km/s and a theoretical kinetic energy reserve of 30.08 megatons TNT. Its well-constrained heliocentric ephemeris passes safely outside Earth capture corridors while serving as an orbital calibration target.
Exact Landmark Scale Comparison (155.61m)
Kinetic Impact Physics & Orbital Parameters
(2011 TK5) (H = 22.9, Vmag ≈ 20.1) is below consumer optical detection thresholds (requires ≥1000mm survey aperture); explore certified meteorite specimens[↗] or indoor optical projection instead.
Campo del Cielo Meteorite Specimen (Certified Iron-Nickel)
Authentic coarse octahedrite Group IAB iron-nickel meteorite fragment (92.9% Fe, 6.7% Ni) recovered from the Chaco crater field with certificate of authenticity.
Satin-black 5W warm-white LED optical glass lens planetarium projecting 60,000 stars and simulated meteor shower trajectories indoors.
3D Ephemeris Trajectory Waypoints
Planetary Defense Frequently Asked Questions (Schema.org FAQ)
How big is (2011 TK5) compared to city landmarks?
(2011 TK5) has an estimated diameter between 69.59m and 155.61m. At its upper-bound size of 155.61m, it stands 35% as tall as the 443m Empire State Building in New York City and 47% of the 330m Eiffel Tower.
Will (2011 TK5) impact Earth during its 2026-10-20 approach?
No. NASA JPL Center for Near-Earth Object Studies (CNEOS) orbital solutions confirm (2011 TK5) will pass safely at a minimum distance of 56.96 Lunar Distances (21,904,144.1 km). You can still simulate a hypothetical street-level impact in our 3D CesiumJS simulator.
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Ultra-portable Sony IMX678 starlight tele-camera with AI equatorial tracking and automated asteroid field stacking.
Authentic coarse octahedrite Group IAB iron-nickel meteorite fragment (92.9% Fe, 6.7% Ni) recovered from the Chaco crater field.
Low-read-noise Sony STARVIS 2 CMOS planetary and all-sky meteor bolide detection camera with 2.0μm pixels.