What is the name of NASA's first satellite to collect global soil moisture?
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SMAP (Soil Moisture Active Passive) is the name of NASA's first satellite to collect global soil moisture (In the fourth week of January). This Satellite can measure the moisture content of the soil from its spot in orbit about 426 miles above Earth's surface. The SMAP mesh antenna is designed to spin at about 14.6 revolutions per minute while mounted to the end of a long arm on the satellite's body.
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