As Pragyan digs deep into moon, scientists at a VSSC lab turn their gaze to solar wind

Syllabus:  Space technology

Context: Aditya-L1 mission, meant to study the sun, lifts off in September.

First space-based Indian mission to study the sun from a halo orbit around the Lagrangian point 1 (L1) of the sun-earth system. XL variant of the Polar Satellite Launch Vehicle (PSLV) to place the Aditya-L1 spacecraft in a low earth orbit. Once launched, it will take 125 days to travel to its destination at L1.

  • The Plasma Analyser Package for Aditya (PAPA) payload
    • one of seven scientific payloads
    • developed by the SPL
    • to gain deeper insights into the phenomenon of solar wind
  • 7 Payloads
    • Aim: study the chromosphere, the photosphere and the outermost layers of the sun using electromagnetic and particle detectors
  • The PAPA payload
    • One among the seven payloads
    • Study the composition of the solar wind
    • Study energy of electrons, the energy and mass of protons and ions in it and the angular variations

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