Each twin STEREO observatory will carry two instruments and two instrument suites. This combination provides a total of 16 instruments per observatory. APL is designing and building the spacecraft platform housing the instruments. When combined with data from observatories on the ground or in low-Earth orbit, STEREO's data will allow scientists to track the buildup and liftoff of magnetic energy from the sun and the trajectory of Earth-bound coronal mass ejections in 3-D.
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High-gain Antenna Deployed
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IMPACT's Boom Deployed
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Pointing at the Sun
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SECCHI Instrument Suite
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S/WAVES Instrument
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