ISRO invites proposals from Indian solar physics community to analyse data from Aditya-L1 mission

The Indian Space Research Organisation (ISRO) has released the second Announcement of Opportunity (AO) inviting proposals from the Indian solar physics community for observation time on the Aditya-L1 mission.

The Aditya-L1 is India’s first dedicated space-based solar mission and has been making continuous and comprehensive observations of the sun from the sun-earth L1 point.

“The Aditya-L1 mission marks a major milestone in India’s space science programme, enabling continuous and comprehensive observations of the sun from the sun-earth L1 point. Scientific data from the mission are regularly released in the public domain for global scientific utilisation,” ISRO said.

At present, there are more than 27 TB of data in the public domain, and several important scientific results have been published in international peer-reviewed journals.

ISRO has invited proposals for the second Aditya-L1 AO to utilise observation time from the Visible Emission Line Coronagraph (VELC) and the Solar Ultra-violet Imaging Telescope (SUIT).

The proposals must be submitted electronically through the Aditya-L1 Proposal Processing System (ALPPS) hosted at the Indian Space Science Data Centre (ISSDC). ALPPS can be accessed via the ISSDC website. Approved observations for this second AO cycle will be conducted between July 2026 and September 2026.

The deadline for submission of proposals for the second AO cycle is April 30, 2026.