What's the scale on Mars rover "Microscopic Imager" images ?

In summary, the scale on the Mars rover Opportunity's "Microscopic Imager" images is determined by the resolution of the images. Without this information, the images may seem meaningless. Based on the consensus, the "fossil" shown in the images is most likely an impression of a screw from the base of the APXS, which can be seen in a photo of the rover's arm.
  • #1
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  • #2
The MI is mounted on an arm and does not have a single resolution.
Certainly the images are pretty meaningless without it.

The consensus seems to be that the image is an impression of a screw from the base of the APXS - you can also see how the base has flattened the dirt and a section of it's arc.
 
  • #3
It looks like a match ...

apxs_portrait-br.jpg


mars.jpl.nasa.gov/msl/images/apxs_portrait-br.jpg

something-screwy-on-mars-rover-microscopic-imager-jpg.74445.jpg
 

What is the scale of the images taken by the "Microscopic Imager" on the Mars rover?

The scale of the images taken by the "Microscopic Imager" on the Mars rover is 11.7 micrometers per pixel. This means that each pixel in the image represents an area of 11.7 micrometers on the surface of Mars.

How is the scale of the images determined on the "Microscopic Imager"?

The scale of the images taken by the "Microscopic Imager" on the Mars rover is determined by a calibration target, which is included in the images. The target contains a grid of known size, which can be used to measure the scale of the image.

Why is it important to know the scale of the images taken by the "Microscopic Imager"?

Knowing the scale of the images taken by the "Microscopic Imager" is important because it allows scientists to accurately measure and analyze the features and structures in the images. This helps in understanding the geology and composition of the Martian surface.

How does the scale of the images on the "Microscopic Imager" compare to the scale on Earth?

The scale of the images on the "Microscopic Imager" is significantly smaller than the scale on Earth. This is because the Martian surface is much smaller than Earth's and the resolution of the images is higher.

Can the scale of the images on the "Microscopic Imager" be changed?

No, the scale of the images on the "Microscopic Imager" cannot be changed. The scale is fixed and determined by the camera's optics and the distance between the camera and the target being imaged.

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