The National Science Foundation’s (NSF) Daniel K. Inouye Solar Telescope (DKIST) is pleased to share the following information to assist with early proposal planning for Cycle 4 Observing.

Key dates for Cycle 4:

• Release of Cycle 4 Proposal Call and Proposal Tool: April 29, 2025, 07:00 GMT.
• Opening of submission window: April 29, 2025, 07:00 GMT.
• Closing of submission window (Proposal submission deadline): May 29, 2025, 23:00 GMT
• Anticipated Execution Window (observing): March 2026 – November 2026.

For observing capabilities, science priorities and other details please visit the full Pre-Announcement: https://nso.atlassian.net/wiki/spaces/PDOI/pages/3469344769

If you have any questions at this point, please contact us on the Help Desk: https://nso.atlassian.net/servicedesk/customer/portals