The Call for Proposals for observations at ESO telescopes in Period 117 (1 May 2026 - 30 April 2027) has been released. Please consult the Period 117 document before applying for time on ESO telescopes. All technical information about the offered instruments and facilities can be found on the ESO webpages linked from the Call for Proposals. The proposal submission deadline is on 23 September 2025, 12:00 CEST.
Call for Proposals for Period 117
Published: 13 Aug 2025
- ESO transitions to a Yearly Cycle (YC), with the Call for Proposals being released once per year
- Normal Programmes can request up to 200h; the review assignment (DPR or panels) is not known at proposal submission
- EFOSC2 is offered in P117, with plans to be decommissioned after SOXS enters operations
- The scientific keywords have been updated; please refresh your User Portal account
- Joint VLT-I/ALMA and joint VLT/I-XMM programmes are offered in this Period
- VISIR will be decommissioned in P117 and is no longer offered.