Mission Control/ASTEROID DOSSIER: 4486-MITHRA
GEMMA ENGINE: LOCAL SERVER BOX [ACTIVE]Launch in 3D City Impact Simulator
NOMINAL CISLUNAR PASSAGEGEMMA ENGINE: LOCAL SERVER BOX [ACTIVE] • meteors-gemma:latest

Asteroid (4486-MITHRA)

Tracked by NASA JPL Near-Earth Object Web Service (NeoWs), Asteroid (4486-MITHRA) is a C-type (Carbonaceous) body measuring between 55m and 89m in diameter. On 2026-10-21, it completes a cislunar approach at 2.35 Lunar Distances (903,340 km) with a relative heliocentric velocity of 17.60 km/s.

Max Diameter (Ø)
89 m
Min: 55 m
Miss Distance
2.35 LD
903,340 km
Rel. Velocity
17.60 km/s
63,360 km/h
Kinetic Energy
40.991 MT
E = ½mv² TNT eq.

Exact Landmark Scale Comparison (89m)

1:1 Meter Scale
89m
4486-MITHRA
443m
Manhattan
227m
Golden Gate
330m
Eiffel Tower
828m
Burj Khalifa
Inspect side-by-side in interactive Google Earth 3D Tiles:Open 3D Street-Level Simulator

Kinetic Impact Physics & Orbital Parameters

45° Incidence · 3,000 kg/m³
Absolute Magnitude (H)20.11 mag
Spectral ClassificationC-type (Carbonaceous)
Estimated Bolide Mass1.107e+9 kg
Kinetic Energy (E = ½mv²)40.991 MT TNT (1.72e+17 J)
Transient Crater Diameter / Depth1,995 m Ø / 419 m deep
5-PSI Structural Overpressure Radius6.64 km
Thermal 3rd-Degree Burn Radius12.83 km
Equivalent Seismic MagnitudeMw 5.7
Primary Ephemeris Source:NASA JPL Small-Body Database Lookup
OPTICAL TRACKING REQUIREMENTS // PHOTOMETRIC LINK
TIER C: PLANETARY RADAR / SPECIMEN GRADE
Calculated Apparent Magnitude (Vmag)
Vmag +10.27
Abs. Magnitude H = 20.11
Required Aperture (mm)
≥ 1000 mm (Planetary Radar)
Professional ≥1000mm Survey CCD / Planetary Bistatic Radar Telemetry
Best Viewing Window
JPL Goldstone Radar / Vera C. Rubin LSST Ephemeris Window Only
Target: Asteroid (4486-MITHRA)

Asteroid (4486-MITHRA) (H = 20.1, Vmag ≈ 10.3) is below consumer optical detection thresholds (requires ≥1000mm survey aperture); explore certified meteorite specimens[↗] or indoor optical projection instead.

PRIMARY INSTRUMENT // Certified Meteorite SpecimenEst. $68

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.

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ALTERNATIVE PHOTOMETRIC / SPECIMEN OPTIONS
Homestar Flux Home Planetarium Optical Projector$219

Satin-black 5W warm-white LED optical glass lens planetarium projecting 60,000 stars and simulated meteor shower trajectories indoors.

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3D Ephemeris Trajectory Waypoints

Node T+0Lat -22.00° · Lon -115.00°39,000 km
Node T+1Lat 12.00° · Lon -74.00°31,000 km
Node T+2Lat 36.00° · Lon -18.00°35,000 km
Node T+3Lat 48.00° · Lon 42.00°49,000 km

Planetary Defense Frequently Asked Questions (Schema.org FAQ)

How big is Asteroid (4486-MITHRA) compared to city landmarks?

Asteroid (4486-MITHRA) has an estimated diameter between 55m and 89m. At its upper-bound size of 89m, it stands 20% as tall as the 443m Empire State Building in New York City and 27% of the 330m Eiffel Tower.

Will Asteroid (4486-MITHRA) impact Earth during its 2026-10-21 approach?

No. NASA JPL Center for Near-Earth Object Studies (CNEOS) orbital solutions confirm Asteroid (4486-MITHRA) will pass safely at a minimum distance of 2.35 Lunar Distances (903,340 km). You can still simulate a hypothetical street-level impact in our 3D CesiumJS simulator.

Hall-of-Fame Near-Earth Asteroids & Historic CNEOS Bolides
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Asteroid (4486-MITHRA) — 3D Orbit, Size Comparison & Kinetic Impact Physics | Meteors.ai Space Network