Eros 433 is the first discovered near-Earth asteroid and the second-largest NEO. It was discovered in 1898 and was the first asteroid to be orbited by a spacecraft (NEAR Shoemaker in 2000).Diameter: 16.84 kmFull name: 433 Eros (A898 PA)Is potentially hazardous: FalseClosest approach: Nov 30 2025 02:18Miss distance: 0.00027 AU
Eccentricity (e): 0.2228Semi-major axis (a): 1.4581 AUPerihelion distance (q): 1.1332 AUInclination (i): 10.83°Longitude of ascending node (Ω): 304.27°Argument of perihelion (ω): 178.93°Mean anomaly (M): 310.55°Time of perihelion passage (tp): Feb 17.33 2026 TDBOrbital period: 643.12 d (1.76 yr)Mean motion (n): 0.5598°/dAphelion distance (Q): 1.7830 AU
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Impact Effects Simulator
Created for the 2025 NASA Space Apps Challenge
Interactive Impact Effects Simulator — explore an accurate, scaled 3D visualization of the inner Solar System and near-Earth objects (NEOs). Use the "Approaches" list to inspect upcoming close approaches, the Filters panel to narrow results by date, size or miss distance, and click any asteroid to open detailed orbital and impact information. NEO data is loaded from the local dataset (assets/neos.json) for demonstration — this visualization is for exploration and education, not real-time hazard alerts.
Our Mission
Meteor Madness is an interactive web-based platform designed to help users understand and prepare for potential asteroid threats. By combining NASA and USGS data with engaging visualizations and physics-based simulations, we make complex astronomical concepts accessible to everyone — scientists, policymakers, educators, and the public.
How this can help humanity
This platform can be used not only for education but also for practical preparedness and emergency planning. With geospatial tools and navigation data we can create shelter maps and safe zones, run impact simulations for specific regions (infrastructure damage, flood-prone areas, debris reach), and prioritize evacuations and emergency resources. In the future the system can be integrated with external sources and platforms (early warning systems, critical infrastructure databases, road networks), enabling faster, coordinated responses during real emergency situations.
Key Features
Real-Time Data
Integration with NASA's NEO API for asteroid tracking and orbital data.
3D Visualization
Interactive 3D orbital paths and impact scenarios using Three.js.
Physics Simulation
Accurate impact calculations including crater size, seismic effects, and energy release.
Decision Support & Real-World Applications
Scenario testing and decision‑support tools to evaluate mitigation and plan emergency response.
Technologies Used
Three.jsNode.jsPythonNASA JLP SBDB APINASA NEO API
Data Sources
JPL Small-Body Database (SBDB)
High-precision orbital elements, ephemerides, and physical parameters from NASA JPL for asteroids and comets.
This project was created as part of the international NASA Space Apps Challenge, bringing together innovators worldwide to address real-world challenges using NASA data.
Crucial Facilities: 247 (airports, power plants, hospitals)
Economic Impact
Estimated Costs: $1.2 trillion USD
Infrastructure Damage: 65% of major cities
Environmental Cleanup: $450 billion USD
Casualties & Effects
Estimated Fatalities: 450 million
Injuries: 1.1 billion
Global Climate Disruption: 5-10 years of cooling
These are simulated estimates based on a hypothetical direct impact scenario for 433 Eros. Actual close approach on Nov 30, 2025, poses no collision risk.