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Supra Thermal & Energetic Particle Spectrometer

Supra Thermal & Energetic Particle Spectrometer:

India’s solar mission, Aditya L1, has started studying energetic particles in the solar wind from space with the help of a device named Supra Thermal & Energetic Particle Spectrometer (STEPS).

  • It is a sub-system of the ASPEX (Aditya Solar Wind Particle Experiment) payload on the spacecraft.
  • The key aim of STEPS is to study the environment of energetic particles from the spacecraft’s position on the L1 point till it will function.
  • The data from STEPS in the long term will also help us understand how space weather changes.
  • It comprises six sensors, each observing in different directions and measuring supra-thermal and energetic ions.
  • The data collected during the Earth’s orbit helps scientists analyse the behaviour of particles surrounding the planet, especially in the presence of its magnetic field.
  • It was developed by the Physical Research Laboratory (PRL) with support from the Space Application Centre (SAC) in Ahmedabad.

Aditya L1:

  • Aditya (which in Sanskrit means sun) is a planned coronagraphy spacecraft to study the solar atmosphere (solar corona, – outermost part).
  • It has been designed and developed by ISRO and various other Indian research institutes.