Magnetic properties experiments on the Mars Polar Lander

The Mars Polar Lander carries an instrument package called the Magnetic Pro perties Experiments. This package consists of one magnet array, one tip-pla te magnet, and three Thermal and Evolved Gas Analyzer (TEGA) magnets. The m agnet array and the tip-plate magnet are identical to those flown on Mars P athfinder and will be passively exposed to airborne dust. The TEGA magnets are a new addition to the package designed to study actively sampled materi al collected from three different depths in the trench that will be dug by the robotic arm soil sampler.