Gaia Data Access Facilities Overview
Explore Gaia data access facilities including data centres hosting Gaia release products, the Gaia Archive, web GUI, programmatic clients, future challenges with Gaia DR4 and DR5, and the cloud-based code-to-data platforms. Learn about the extensive resources available and how to access them efficiently. Stay informed and engaged with the latest developments in astronomy data access.
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Presentation Transcript
Gaia data access facilities (on behalf of Gaia DPAC) Nigel Hambly Institute for Astronomy, University of Edinburgh
Data Centres hosting Gaia release products Affiliate DCs serving the data: include: Official partner DCs to ESAC Science Data Centre, Madrid: NAJO, Japan STScI-MAST, Baltimore OP-M, Paris IRSA, Pasadena PIC CosmoHub, Barcelona and a host of other survey DCs CDS, Strasbourg ASI Space Science DC, Rome ARI GAVO, Heidelberg AIP, Potsdam Flatiron Institute, NYC N Hambly, Gaia data access facilities, NAM 2025 2
The Gaia Archive ESA s Gaia Archive is the premier point-of-access, and features richly-functioned user interfaces VO-compliant programmatic TAP+ interface comprehensive documentation N Hambly, Gaia data access facilities, NAM 2025 3
Web GUI and programmatic clients, e.g. Astropy module astroquery.gaia: Topcat: ( see here for tutorials) N Hambly, Gaia data access facilities, NAM 2025 6
The elephant in the room Gaia DR4 (2026) and Gaia DR5 (2030) will be huge: DR4: 600 TB (cf. DR3 < 10 TB) DR5: likely 1 PB (126 months v. 66 months in DR4) Sheer volume of data is not the only issue: Scale and complexity of analyses Reproducibility of results Open science and inclusivity perspectives Sustainability N Hambly, Gaia data access facilities, NAM 2025 7
The answer: cloud-based code-to-data platforms Since Gaia DR3 the UK has deployed and maintained the Gaia Data Mining Platform: email gaiadmp-support at roe.ac.uk for an account; speak to me today for live demos! N Hambly, Gaia data access facilities, NAM 2025 8
Latest developments As part of a European collaboration*, we are upgrading and scaling for Gaia DR4, e.g. JupyterHub web interface Support for Dask as well as Spark Support for batch-like workflows Cloud-native deployment and maintenance * SPACIOUS = Science PlAtform Cloud Infrastructure for Outsized Usage Scenarios N Hambly, Gaia data access facilities, NAM 2025 9
Finally an advert: December 2025 There is a on-line workshop on code-to-data facilities towards the end of this year Space astronomy science platforms focus week December 2025 (exact date TBC) Jointly organised by Gaia-UK and SPACIOUS Gaia DMP, ESA DataLabs, SPACIOUS- AstroFlow, Watch out for announcement soon via astro-community email N Hambly, Gaia data access facilities, NAM 2025 10
