Instrument Information
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| IDENTIFIER |
urn:nasa:pds:context:instrument:sep.maven::1.1
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| NAME |
SOLAR ENERGETIC PARTICLE INSTRUMENT
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| TYPE |
ENERGETIC PARTICLE DETECTOR
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| DESCRIPTION |
The Solar Energetic Particle Instrument (SEP) consists of 2 sensors, each consisting of a pair of double-ended solid-state telescopes, measuring electrons and ions over the energy ranges ~30-1000 keV and ~30-12,000 keV/nuc respectively. The SEP sensors are closely based on the Solid State Telescope (SST) sensors on the THEMIS probes and also share significant heritage with the SupraThermal Electron (STE) detectors on STEREO and the SST detectors on the Wind spacecraft.The SEP sensors are mounted on two corners of the top deck of the spacecraft, positioned to ensure that the fields of view (FOVs) adequately cover the canonical Parker spiral direction (around which solar energetic particle distributions are typically centered), while 1) always avoiding glint from the spacecraft, other sensors and the Articulated Payload Platform (APP) and 2) avoiding direct sunlight during spacecraft attitudes typical of normal science operations.
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