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Instrument: ASPEX
Instrument details
Acronym
ASPEX
Full name
Aditya Solar wind Particle Experiment
Purpose
To study the variation of solar wind properties as well as its distribution and spectral characteristics
Short description
Composed of two sub-systems: 1) SWIS (Solar Wind Ion Spectrometer) to measure both the angular and energy distributions concurrently in addition to being able to separate protons, α-particles and heavy ions in the 100 eV to 20 keV range; and 2) STEPS (Supra Thermal Energetic Particle Spectrometer). STEPS will sample the solar wind along four different directions and study the supra-thermal particles observed in the solar wind in the 20 eV to 5 MeV range
Background
New development
Scanning Technique
Angular distribution measured
Resolution
Coverage / Cycle
Mass
Power
Data Rate
Providing Agency
ISRO
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
≥2022 to ≥2027
Last update:
2021-11-10
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 at L1 - Proton sensor Solar wind at L1 - Alpha-particle sensor Solar wind at L1 - Heavy ion sensor Solar wind at L1 - Plasma density sensor Solar wind at L1 - Plasma temperature sensor Solar wind at L1 - Plasma velocity sensor
Mission objectives
Primary mission objectives Solar wind density Solar wind temperature Solar wind velocity
Secondary mission objectives Alpha particles differential directional flux Electron differential directional flux Heavy ion angular flux energy and mass spectrum Proton differential directional flux
Opportunity objectives Heavy ion flux energy and mass spectrum Show all Show fewer
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