Mission Control/ASTEROID DOSSIER: 1036
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NOMINAL CISLUNAR PASSAGEGEMMA ENGINE: LOCAL SERVER BOX [ACTIVE] • meteors-gemma:latest

1036 Ganymed (Largest Near-Earth Asteroid)

Tracked by NASA JPL Near-Earth Object Web Service (NeoWs), 1036 Ganymed (Largest Near-Earth Asteroid) is a S-type (Massive Amor Silicate Body) body measuring between 31600m and 35200m in diameter. On 2026-10-30, it completes a cislunar approach at 38.40 Lunar Distances (14,760,960 km) with a relative heliocentric velocity of 16.80 km/s.

Max Diameter (Ø)
35200 m
Min: 31600 m
Miss Distance
38.40 LD
14,760,960 km
Rel. Velocity
16.80 km/s
60,480 km/h
Kinetic Energy
2,310,706,358.364 MT
E = ½mv² TNT eq.

Exact Landmark Scale Comparison (35200m)

1:1 Meter Scale
35200m
1036
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)9.45 mag
Spectral ClassificationS-type (Massive Amor Silicate Body)
Estimated Bolide Mass6.851e+16 kg
Kinetic Energy (E = ½mv²)2,310,706,358.364 MT TNT (9.67e+24 J)
Transient Crater Diameter / Depth207,396 m Ø / 43,553 m deep
5-PSI Structural Overpressure Radius2399.22 km
Thermal 3rd-Degree Burn Radius19332.74 km
Equivalent Seismic MagnitudeMw 9.6
Primary Ephemeris Source:NASA JPL Small-Body Database Lookup
OPTICAL TRACKING REQUIREMENTS // PHOTOMETRIC LINK
TIER A: NAKED-EYE / BINOCULAR
Calculated Apparent Magnitude (Vmag)
Vmag +5.74
Abs. Magnitude H = 9.45
Required Aperture (mm)
70 mm Optical Aperture
Wide-Field Sweeping / Tripod-Stabilized 15x70 Visual Track
Best Viewing Window
Local Astronomical Twilight to Pre-Dawn Zenith (Bortle 1–5)
Target: 1036 Ganymed (Largest Near-Earth Asteroid)

1036 Ganymed (Largest Near-Earth Asteroid) (H = 9.4, Vmag ≈ 5.7) reaches high surface brightness suitable for 70mm large-aperture binoculars[↗].

PRIMARY INSTRUMENT // Wide-Field Astronomy BinocularsEst. $119

Celestron SkyMaster Pro 15x70 Binoculars

High-transmission BaK-4 Porro prism 15x70 optics with tripod adapter for bright near-Earth flybys, comets, and bolide shower radiants.

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ALTERNATIVE PHOTOMETRIC / SPECIMEN OPTIONS
Nikon Aculon A211 10x50 Wide-Field Binoculars$109

Aspherical multi-coated 50mm lenses offering a 6.5° wide field of view for rapid handheld tracking of bright close-approach objects.

Handheld Skywatcher Binoculars[ACQUIRE OPTICAL HARDWARE ->]
H-Magnitude Photometric SolverAmazon Associates (meteorsai-20)

3D Ephemeris Trajectory Waypoints

Node T+0Lat -28.00° · Lon -130.00°95,000 km
Node T+1Lat 12.00° · Lon -65.00°84,000 km
Node T+2Lat 39.00° · Lon 8.00°96,000 km

Planetary Defense Frequently Asked Questions (Schema.org FAQ)

How big is 1036 Ganymed (Largest Near-Earth Asteroid) compared to city landmarks?

1036 Ganymed (Largest Near-Earth Asteroid) has an estimated diameter between 31600m and 35200m. At its upper-bound size of 35200m, it stands 7946% as tall as the 443m Empire State Building in New York City and 10667% of the 330m Eiffel Tower.

Will 1036 Ganymed (Largest Near-Earth Asteroid) impact Earth during its 2026-10-30 approach?

No. NASA JPL Center for Near-Earth Object Studies (CNEOS) orbital solutions confirm 1036 Ganymed (Largest Near-Earth Asteroid) will pass safely at a minimum distance of 38.40 Lunar Distances (14,760,960 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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1036 Ganymed (Largest Near-Earth Asteroid) — 3D Orbit, Size Comparison & Kinetic Impact Physics | Meteors.ai Space Network