#4th webinar


Looking at the Sun in the Near-UV range with the Solar Ultraviolet Imaging Telescope onboard Aditya-L1 mission


Dr.Avyarthana Ghosh (Postdoc, IUCAA Pune)



The Solar Ultraviolet Imaging Telescope (SUIT) on-board Aditya-L1 spacecraft (India’s first space mission dedicated solely to solar observations) is an indigenous effort to observe the Sun in Near-Ultraviolet range of the solar electromagnetic spectrum. It is unique in the way that it can image the Sun 24×7 from the Sun-Earth Lagrangian 1 point with a high spatial resolution, cadence and contrast, in addition to good straylight mitigation. There is a suite of 11 science filters, out of which 8 are with comparatively narrow Full-Width-Half-Maxima and remaining 3 are broadband. In total, these 11 science filters probe the dynamics and coupling of mass and energy in different layers of the lower solar atmosphere as well as its impact on space-terrestrial climate. In my talk, I shall be giving a brief overview of the science objectives, the photometric designing of SUIT along with its performance modelling and straylight estimates. Finally, I shall be talking about the operational planning and the current status of the instrument which is being tested at subsystems- level and assembled.