Caption 1:

The central part of this figure shows the emblem on the Delta rockets that brought the rovers to Mars. 

The filter and capture magnets are located in front of the base of the Pamcam Mast Assembly (PMA) that carries the camera head. 

The sweep magnet is located on the rear solar panel next to the Pancam calibration target. We cannot only gather airborne dust, but also dust produced during grinding. 

The Rock Abrasion Tool (RAT) at the far end of the IDD has four small, but strong magnets that capture particles when the RAT is brushing or RATing.



Caption 2:

The Opportunity Pancam calibration target and the sweep magnet as imaged on sol 37. This is a color composite generated from Pancam filters L4 (600 nm), L5 (530 nm), and L6 (480 nm). The top insert shows the sweep magnet as seen through Pancam filter L7 (440 nm). Also shown is a trace (profile) of the variation of contrast across the surface of the magnet.



Caption 3:

Left third is the Opportunity filter and capture magnets as seen by Pancam on sol 37. This is a color composite generated from Pancam filters L4 (600 nm), L5 (530 nm), and L6 (480 nm). These magnets were imaged by the Microscopic Imager on sol 38 (center and right). The microscopic images to our surprise shows much more structure than we anticipated. This may be caused by agglomeration of particles that are magnetized in the magnetic field of the magnets.