When to Use Apophis 2029 Flyby 3D Explorer - Best Sessions and Limits
Open Apophis 2029 Flyby 3D Explorer when you need a clear picture of how close asteroid 99942 Apophis will pass to Earth on 13 April 2029, measured against the geostationary satellite ring - not a live tracker and not an impact-risk tool.
A close-approach lesson
A lesson starts by dragging the day slider from -3 to +3 days and watching the distance-from-surface reading change, then jumping straight to closest approach to see the asteroid pass inside the geostationary ring.
Sessions this explorer does not fit
Sessions this page does not fit are impact-risk assessment - the copy explicitly states impact risk is ruled out for at least 100 years - or a numerically integrated trajectory; the flyby path shown is a simplified straight line offset by the real minimum distance, not a gravitational simulation. For an object that actually reached the ground, use the Chelyabinsk Meteor 3D Explorer; for crater-formation mechanics on contact, use the Impact Crater Formation 3D Explorer. Walk the controls in the step-by-step guide.
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