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A close-up view of the Lunar Portable Magnetometer (LPM), which will be used by the crew of the Apollo 14 lunar landing mission during the second extravehicular activity (EVA). The LPM's components, a tripod-mounted flux-gate magnetometer sensor head and an electronics data package, connected by a 50-feet flat cable, function together to measure variations in the lunar magnetic field at several points on the geological traverse. Data gathered will be used to determine the location, strength and dimensions of magnetic sources, as well as knowledge of the local and total selenological structure. The LPM will be carried on the Modular Equipment Transporter (MET), and deployed by the lunar module pilot, who will align the sensor head at least 35 feet from the data package. The LM pilot will then return to the MET and verbally relay the LPM readouts to Earth. Astronaut Edgar D. Mitchell is the lunar module pilot for the Apollo 14 lunar landing mission.