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ASPEX: ISRO’s Aditya L1 spacecraft

Facts for Prelims (FFP)


Source: TOI

 Context: ISRO’s Aditya L1 spacecraft, launched in September to explore the Sun, has activated its second instrument, ASPEX (Aditya Solar Wind Particle Experiment).


What is ASPEX?

ASPEX, or the Aditya Solar Wind Particle Experiment, is a scientific instrument on ISRO’s Aditya L1 spacecraft designed to study solar wind particles. It comprises tools such as the ‘Solar Wind Ion Spectrometer’ (SWIS) and the ‘Suprathermal and Energetic Particle Spectrometer’ (STEPS).

SWIS measures charged particles (ions) from the Sun, offering a broad view, while STEPS focuses on studying high-energy particles emitted by the Sun. ASPEX plays a crucial role in understanding space weather and its potential impact on communication systems and power grids on Earth.