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Mission Characteristics

Background:	Gaia is a mission designed to chart a three dimensional map of the Milky Way. Gaia will provide unprecedented positional measurements for about one billion stars in our Galaxy, together with radial velocity measurements for the brightest 150 million objects.
Mission Milestones:	Launch: 19 December 2013 End of Nominal Mission: 2019
Wavelength:	330-1050 nm
Area Coverage:	All Sky
Instruments:	Astro: 2 identical telescopes and imaging system BP/LP: Blue and Red Photometers RVS: Radial Velocity Spectrometer
Science Products Generated:	Catalogs
Releases:	Sept 2016: Gaia DR1 April 2018: Gaia DR2 March 2021: Gaia EDR3 June 2022: Gaia DR3 November 2023: Gaia DR3: Source Catalogue reingested into IRSA due to errors we discovered with source_id, solution_id, and random_index in our loading process. Please contact the IRSA Help Desk if you have questions.
Funding Agency:	Gaia is an ESA mission.
Canonical Papers:	DR1: Gaia Collaboration (2016a) DR2: Gaia Collaboration (2018) eDR3: Gaia Collaboration (2021) DR3: Gaia Collaboration (2022)

IRSA Services - Public Data Releases

Gaia Catalogue	The Gaia Catalogue contains positions, brightnesses, distances, and proper motions for more than a billion stars. Access the catalog through IRSA's Catalog Search service.
Gaia Ancillary Tables	Astrometric Solution, Variable, and Cross-Reference tables. Access the catalogs through IRSA's Catalog Search service.
DR3 Documentation	Documentation for Data Release 3
EDR3 Documentation	Documentation for Early Data Release 3
DR2 Documentation	Documentation for Data Release 2
DR1 Documentation	Documentation for Data Release 1

Other Resources:

ESA Gaia Science Home Page