Question 1

How does MeteorWatch calculate asteroid impact risk?

Accepted Answer

MeteorWatch queries the NASA NeoWs (Near Earth Object Web Service) API to retrieve all asteroids making close approaches to Earth in the next 7 days. Each object is scored 0–100 based on its miss distance, size, velocity, and whether it is classified as a Potentially Hazardous Asteroid (PHA) by NASA.

Question 2

Is the data real-time?

Accepted Answer

Yes. Every time you press 'Detect my location', MeteorWatch fetches live data directly from the NASA NeoWs API for the current 7-day window.

Question 3

What is the impact zone radius shown on the map?

Accepted Answer

The impact zone radius is an estimated area of significant ground effect calculated from the asteroid's average diameter. It is a simplified model for illustrative purposes and should not be used for emergency planning.

What's flyingtoward you today?

What's flying
toward you today?