JA Lens

Figure 1. Spirit at the crater rim. Notice the large light colored rock on the crater rim to the right. Enhanced version of a full frame EDR (Experiment Data Record) image taken by Spirit on Sol 67 using the front left hazard avoidance camera mounted on the main rover body .52 meters (20.47 inches) above the Martian surface. The HazCam fisheye lenses have a focal length of 5.58 mm at the center of the field and operate at f/15 with a diagonal field of view of 180º. Compare the appearance of the rock in this image versus sol 66.

At the Crater's Rim

in Analysis

on: 05 January 2015

2. Ok, so you've had a good look at "the rock" imaged by the Mars Exploration Rover Spirit (MER-A) on sol (Martian day) 66. You have some perspective as to where it sits (next to the rim of Bonneville crater) and what's around it (near a large relatively darkly colored rock and close to a smaller rock with an X on it's end.) You have also…

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You may have noticed that many of the images on KilroyOnMars.com show colors not normally associated with Mars. It may seem that no two pictures of the Martian surface have exactly the same color balance. This can be said whether you are looking at images here or elsewhere on the web including NASA's own sites. Widely seen images…

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