Applications
Optical motion tracking is used to keep track on various objects, including airplanes, launch vehicles and satellites. It has the advantage of providing high resolution image of the target being tracked. The image obtained from NASA's long-range tracking system on space shuttle Challenger's fatal launch provided crucial evidence about the cause of the accident. Optical tracking systems are also used to identify known spacecrafts and space debris despite the fact that it has a disadvantage over radar in that the objects must be reflecting or emitting sufficient light.
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