Hazcam

Hazcams (short for hazard avoidance cameras) are photographic cameras mounted on the front and rear of NASA's Spirit, Opportunity and Curiosity rover missions to Mars and on the lower front portion of Chinese Yutu rover mission to the Moon.

Hazcam image of Botany Bay and Solander Point (2013)
Hazcam images indicated to NASA engineers that the Opportunity rover was stuck in a sand dune.

Overview

The Curiosity rover's hazcams are sensitive to visible light and return black and white images of resolution 1024 × 1024 pixels.[1] These images are used by the rovers' internal computer to autonomously navigate around hazards. Due to their positioning on both sides of the rovers, simultaneous images taken by either both front or both rear cameras can be used to produce a 3D map of the immediate surroundings. As the cameras are fixed (i.e. can not move independently of the rover), they have a wide field of view (approximately 120° both horizontally and vertically) to allow a large amount of terrain to be visible.

They are considered engineering cameras since they were not designed to be used for scientific experiments. The other set of engineering cameras on the rovers are the navcams.

The safe landing of the Mars Science Laboratory was initially confirmed using the vehicle's hazcams.

gollark: If you're somewhere where *all* is religion X, then it's somewhat hard to consider not-religion-X as a serious possibility.
gollark: It's not entirely a choice. "You" don't directly set your beliefs.
gollark: They aren't forced to, as it is entirely possible to not look at the channel while religion is mentioned.
gollark: Well, you can't exactly *make* people LGBT by discussing it with them.
gollark: It isn't as if you can't do arbitrary religious rituals and such without believing it. Although it might be hard.

See also

References
  1. "Hazard Avoidance Camera (Hazcam)". PDS Geosciences Node. Retrieved September 4, 2019.
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