(2019 UM6)
Tracked by NASA JPL Near-Earth Object Web Service (NeoWs), (2019 UM6) is a M-type (Metallic Nickel-Iron) body measuring between 78.08m and 174.6m in diameter. On 2026-10-26, it completes a cislunar approach at 120.54 Lunar Distances (46,355,017.5 km) with a relative heliocentric velocity of 8.96 km/s.
(2019 UM6) (JPL ID 3879718) is a M-type (Metallic Nickel-Iron) Near-Earth Asteroid spanning 78.1m–174.6m (mean 126.3m). On 2026-10-26, it transits Earth's cislunar surveillance sector at 120.537 Lunar Distances (46,355,018 km) with a relative velocity of 8.96 km/s and a theoretical kinetic energy reserve of 53.69 megatons TNT. Its well-constrained heliocentric ephemeris passes safely outside Earth capture corridors while serving as an orbital calibration target.
Exact Landmark Scale Comparison (174.6m)
Kinetic Impact Physics & Orbital Parameters
(2019 UM6) (H = 22.7, Vmag ≈ 21.6) 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 (2019 UM6) compared to city landmarks?
(2019 UM6) has an estimated diameter between 78.08m and 174.6m. At its upper-bound size of 174.6m, it stands 39% as tall as the 443m Empire State Building in New York City and 53% of the 330m Eiffel Tower.
Will (2019 UM6) impact Earth during its 2026-10-26 approach?
No. NASA JPL Center for Near-Earth Object Studies (CNEOS) orbital solutions confirm (2019 UM6) will pass safely at a minimum distance of 120.54 Lunar Distances (46,355,017.5 km). You can still simulate a hypothetical street-level impact in our 3D CesiumJS simulator.
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Autonomous apochromatic triplet smart telescope with integrated plate-solving, live stacking, and dual-band filter for magnitude 10–16 NEOs.
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.