BackForwardInstrument:  HIT 

Instrument details
Acronym HIT
Full name High-energy Ion Telescope
Purpose HIT measures the elemental composition, energy spectra, angular distributions, and arrival times of H to Ni ions over a species-dependent energy range from ~2 to ~40 MeV/nuc.
Short description HIT is an energetic particle spectrometer, where ionisation losses, as a charged particle passes through multiple silicon SSDs, are used to characterise a particle’s nuclear charge, energy, and mass.
Background Heritage from STEREO IMPACT/STE telescope.
Scanning Technique 30deg  ×  30deg bins, all sky (4π)
Resolution Mass resolution M/ΔM ≥ 7
Coverage / Cycle 1 minute sampling
Mass Power Data Rate

 

Providing Agency NASA
Instrument Maturity Flown on operational programme
Utilization Period: TBD
Last update: 2023-02-20
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 1
  • Solar wind in situ plasma and energetic particles, magnetic field, at L1
  • Solar wind at L1 - Heavy ion sensor
Mission objectives
Primary mission objectives
  • Heavy ion angular flux energy and mass spectrum
  • Heavy ion integral directional flux
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
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Heavy ion flux energy and mass spectrum4 - fairNo specific limitation.Interplanetary space. Low-medium energy range (<10 up to 100 MeV/n)
Heavy ion angular flux energy and mass spectrum*4 - fairNo specific limitation.Interplanetary space. Low-medium energy range (<10 up to 100 MeV/n)