Science Archive Facility

Warning!!

Due to planned IT maintenance, there may be a disruption of some archive services on the weekend of 6–7 March 2021. Full archive services won't be guaranteed before Monday 8 March.
We apologise for any inconvenience this may cause.

Minimal Science Operations have been resumed at La Silla Paranal Observatory since 14 September 2020. More detail...

ESO Archive Frequently Asked Questions

What is the coding scheme for ESO Programme IDs?

Read the documentation on the ESO programme identification code.

ESO — Reaching New Heights in Astronomy

Warning!!

ESO Archive Frequently Asked Questions

What is the coding scheme for ESO Programme IDs?