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Instrument details
Acronym
IMPACT/STE
Full name
IMPACT / Suprathermal Electron Telescope
Purpose
Electron spectrometry with approximately 50 times the sensitivity of previous instruments
Short description
Assemblage of passively cooled SSDs (Silicon Semiconductor Devices) that measure all energies simultaneously. There are two detector arrays of four SSDs in a row, Energy range 2-20 keV
Background
Part of the IMPACT (In-situ Measurements of Particles and CME Transients) instrument package
Scanning Technique
Interplanetary space observation from two variable positions along the Earth’s orbit around the Sun to implement stereoscopy
Resolution
N/A
Coverage / Cycle
Near full interplanetary space, continuous monitoring
Mass
Power
Data Rate
Providing Agency
NASA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2007-01-21 to 2014-10-01
Last update:
2021-12-16
Detailed characteristics
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
future satellites
Instrument classification
Solar and space environment monitors Energetic particle spectrometer
WIGOS Subcomponents
Subcomponent 2 Electron sensor [at solar orbit, ecliptic, L5] Subcomponent 3 Electron sensor [from solar orbit, ecliptic, L5]
Mission objectives
Tentative Evaluation of Measurements
The following list indicates which measurements can typically be
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers
Variable Relevance for measuring this variable Operational limitations Explanation
Electron differential directional flux 3 - high No specific limitation. Interplanetary space, low energy (up to 40 keV)
Instrument: IMPACT/STE