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image of pancam

The Panoramic Camera (Pancam)

Pancam is a high-resolution color stereo pair of CCD cameras used to image the surface and sky of Mars. The cameras are located on a "camera bar" that sits on top of the mast of the rover.

The Pancam Mast Assembly (PMA) allows the cameras to rotate a full 360° to obtain a panoramic view of the martian landscape. The camera bar itself can swing up or down through 180° of elevation. Scientists use Pancam to scan the horizon of Mars for landforms that may indicate a past history of water. They also use the instrument to create a map of the area where the rover lands, as well as search for interesting rocks and soils to study.

The Pancam cameras are small enough to fit in the palm of your hand (270 grams or about 9 ounces), but can generate panoramic image mosaics as large as 4,000 pixels high and 24,000 pixels around. Pancam detectors are CCDs (charge coupled devices). These devices form the image, just as film does in a film camera.

image of pancam eye filter
Each "eye" of the Pancam carries a filter wheel that gives Pancam its multispectral imaging capabilities. Images taken at various wavelengths can help scientists learn more about the minerals found in martian rocks and soils. Blue and infrared solar filters allow the camera to image the sun. These data, along with images of the sky at a variety of wavelengths, help to determine the orientation of the rover and provide information about the dust in the atmosphere of Mars. The Pancam color imaging system has, by far, the best capability of any camera ever sent to the surface of another planet.
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