The Solar Ultraviolet Imaging Telescope onboard Aditya-L1

TL;DR

The SUIT instrument onboard ISRO's Aditya-L1 mission will observe the Sun's ultraviolet emissions to study solar atmospheric layers and their impact on Earth's atmosphere and climate.

Contribution

This paper introduces the SUIT instrument and its capabilities for high-resolution ultraviolet solar observations from space.

Findings

SUIT will measure solar radiation in 200-400 nm range.

It will map the photosphere and chromosphere simultaneously.

SUIT will provide data on solar spectral irradiance affecting Earth's atmosphere.

Abstract

The Solar Ultraviolet Imaging Telescope (SUIT) is an instrument onboard the Aditya-L1 mission of ISRO that will measure and monitor the solar radiation emitted in the near-ultraviolet wavelength range (200-400 nm). SUIT will simultaneously map the photosphere and the chromosphere of the Sun using 11 filters sensitive to different wavelengths and covering different heights in the solar atmosphere and help us understand the processes involved in the transfer of mass and energy from one layer to the other. SUIT will also allow us to measure and monitor spatially resolved solar spectral irradiance that governs the chemistry of oxygen and ozone in the stratosphere of Earth's atmosphere. This is central to our understanding of the Sun climate relationship.