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How to Explore DART Asteroid Deflection 3D Explorer

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Open DART Asteroid Deflection 3D Explorer, click "Fire DART" to replay the real 26 September 2022 impact, and read the before/after orbital period change in the facts panel.

  1. Open https://freetoolonline.com/space-3d/dart-asteroid-deflection.html and wait for Didymos and orbiting Dimorphos to render.
  2. Click "Fire DART" and watch the probe fly in and hit Dimorphos, followed by a fading ejecta burst.
  3. Read the facts panel: the state flips to "After impact" and the orbital period changes from 11h 55m to about 11h 22m.
  4. Compare the -33 minute change against NASA's 73-second minimum-success threshold, shown in the same panel.
  5. Click "Reset (before impact)" to return to the pre-impact state and replay the sequence, or drag to orbit and scroll/pinch to zoom for a closer look.

Key published figures

FigureValue
Impact date/time26 September 2022, 23:14 UTC
DART mass at impactabout 579 kg
Impact speedabout 6.14 km/s
Orbital period before11 h 55 min
Orbital period afterabout 11 h 22 min (-33 min)

Next: the when guide or vs alternatives. Open the DART Asteroid Deflection 3D Explorer.

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