Overview of the magnetic properties experiments onboard the two Mars Exploration Rovers, Spirit and Opportunity

Details Overview of the magnetic properties experiments onboard the two Mars Exploration Rovers, Spirit and Opportunity Overview of the magnetic properties experiments onboard the two Mars Exploration Rovers, Spirit and Opportunity

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusm.p32a..08l&link_type=abstract

American Geophysical Union, Spring Meeting 2007, abstract #P32A-08

Other

3929 Nmr, Mossbauer Spectroscopy, And Other Magnetic Techniques, 5440 Magnetic Fields And Magnetism, 5460 Physical Properties Of Materials, 5494 Instruments And Techniques, 6225 Mars

Scientific paper

The two Mars Exploration Rovers, Spirit and Opportunity, are each equipped with seven magnets designed for three different purposes: 1. The Filter and Capture magnets collect dust from the atmosphere. The dust can be investigated by the science instruments on the robotic arm and imaged by the Panoramic Camera. Analyzes of the dust shows that the magnetic component in the martian dust is magnetite, hematite together with paramagnetic and possibly superparamagnetic compounds is responsible for the yellowish color of the dust and the presence of olivine shows that the dust is formed without any appreciable presence of water. 2. The ring shaped Sweep magnet is design to detect non-magnetic particles. The experiment has been negative so far, showing that all particles must be composite and magnetic. This experience has been used to design a new camera calibration target for the Phoenix 2007, the sweep effect significantly preventing the calibration target to get dusty during the mission. 3. The Rock Abrasion Tool magnets are design to support the Mössbauer measurements on rocks giving additional information about the magnetic minerals contained in rocks. We here report on the results from the rovers and the neer future prospective for magnetic properties experiments on Mars.

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