(2015 TJ1)
Tracked by NASA JPL Near-Earth Object Web Service (NeoWs), (2015 TJ1) is a Unreported by NASA NeoWs body measuring between 77.72m and 173.8m in diameter. On 2026-11-11, it completes a cislunar approach at 171.90 Lunar Distances (66,107,677.8 km) with a relative heliocentric velocity of 17.46 km/s.
(2015 TJ1) (JPL ID 3728932) is a Unreported by NASA NeoWs Near-Earth Asteroid spanning 77.7m–173.8m (mean 125.8m). On 2026-11-11, it transits Earth's cislunar surveillance sector at 171.900 Lunar Distances (66,107,678 km) with a relative velocity of 17.46 km/s and a theoretical kinetic energy reserve of 108.21 megatons TNT. Its well-constrained heliocentric ephemeris passes safely outside Earth capture corridors while serving as an orbital calibration target.
Exact Landmark Scale Comparison (173.8m)
Kinetic Impact Physics & Orbital Parameters
(2015 TJ1) (H = 22.7, Vmag ≈ 22.5) 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 (2015 TJ1) compared to city landmarks?
(2015 TJ1) has an estimated diameter between 77.72m and 173.8m. At its upper-bound size of 173.8m, it stands 39% as tall as the 443m Empire State Building in New York City and 53% of the 330m Eiffel Tower.
What does the stored 2026-11-11 close-approach estimate show?
This catalog snapshot lists a nominal miss distance of 171.90 Lunar Distances (66,107,677.8 km) for (2015 TJ1). This is not an impact prediction; check the latest NASA JPL record for updated orbital estimates. The 3D impact simulation is hypothetical.
High-transmission BaK-4 Porro prism 15x70 optics with tripod adapter for bright near-Earth flybys, comets, and bolide shower radiants.
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.