The Italian Senate Data Portal offers direct access to Senate data, with options to download or query datasets and subscribe to updates.
ESO Science Archive Facility
The ESO Science Archive provides an archive home with data access, archive query tools, and direct retrieval of data products.
About ESO Science Archive Facility
The ESO Science Archive Facility contains and provides access to data from ESO telescopes at La Silla Paranal Observatory, including the APEX submillimeter telescope. It stores raw data with corresponding calibrations and selected products generated at ESO or contributed by the community, plus raw UKIDSS/WFCAM data from the UK Infrared Telescope in Hawaii.
Access is available through raw data query forms, the Science Portal for processed data, the Catalogue Facility for catalogue data, and programmatic VO-compatible tools and direct retrieval by file name. Principal investigators have exclusive access during a proprietary period, normally one year. Browsing does not require authentication, and use of archive data in publications should be acknowledged.
Key features
- Raw data query forms for frames and calibrations
- Science Portal for browsing processed data
- Catalogue Facility for PI-produced catalogue data
- Programmatic scriptable access to data and metadata
- Direct retrieval of data products by file name
- Ambient Conditions Database measurements access
Best for: Researchers and others who need ESO telescope observations after the proprietary period.
Good for
- Browsing the archive does not require authentication
- Raw data stored with calibrations plus selected ESO and community products
- Downloaded processed data assigned a Digital Object Identifier
Watch out for
- New observations restricted to principal investigators during proprietary period, normally one year
- Catalogue Facility queries require ESO User Portal authentication
- Some advanced data products available only as downloadable packages without query form
ESO Science Archive Facility at a glance
- Website
- archive.eso.org/cms.html
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
ESO Science Archive Facility alternatives
Tools and sites you could use instead, ranked by how closely they match.
NASA’s Infrared Science Archive curates science products from infrared and submillimeter missions, with catalog and contributed dataset search.
DARTS is JAXA’s space science data archive, covering fields including astronomy, solar physics, lunar and planetary science, and microgravity.
The Estonian Social Science Data Archive provides online data search and analysis, with thematic collections covering social research.
Materials Cloud Archive lets visitors browse records linked to materials science applications and tools.
Sweden’s Consumer Agency currently publishes no open data and directs data or statistics requests to its registry.
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ESO Science Archive Facility FAQ
When do new ESO observations become available to others?
Principal investigators have exclusive access during a proprietary period, normally one year, after which data becomes available to the community.
Do I need to log in to browse the archive?
No, browsing the archive does not require authentication.
Do I need to credit archive data in publications?
Yes, use of archive data in any publication should be acknowledged.
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