Data releases with known dates:

• October 21, 2026: Data Release 1 (DR1)
• March 19, 2025: Quick Euclid data release 1 (Q1)
• May 2024: Early Release Observations (ERO) data release

Current data release plan (click here for the most up-to-date Euclid data release timeline from ESA):

• Three main data releases (DR1, DR2, DR3), phased with the survey progress, with the final DR3 a year after the end of the main survey.
• Preceding each major DR are public “quick releases” (Q1, Q2, Q3, Q4) of selected areas and data-products, to demonstrate the data to be expected, and to allow scientists to sharpen their data analysis tools.

ESA will release well characterized and validated data to the world wide community in each of the major Data Releases and Quick releases. The overall active mission duration for Euclid is planned to be at least 6.5 years, with main survey operations lasting 6 years after an initial commissioning phase of 3 months following launch. If Euclid continues to be operational after this time, a mission extension could follow with additional surveys. 

Tentative timeline for the Euclid data deliveries to the general scientific community. (Credit: ESA & Euclid Consortium)
Click here for the most up-to-date Euclid timeline.

The main component of the Q1 data contains Level 2 data of a single visit (at the depth of the Euclid Wide Survey) over the Euclid Deep Fields (EDFs): 20 deg² of the EDF North, 10 deg² of EDF Fornax, and 23 deg² of the EDF South. The deep fields will be visited multiple times during the mission. Click here for the scope, content, and data product definition of Q1.