Gaia data releases

Release When Data available
GDR1 14.09.2016
  • Positions: ra, ra_error, dec, dec_error
  • G mean magnitudes: phot_g_mean_mag
  • Proper motions and parallaxes from Tycho2 for corresponding Gaia sources (tgas_source):
    pmra, pmra_error, pmdec, pmdec_error
GDR2 25.04.2018
  • Radial velocities
  • Blue and red photometries
  • Proper motions
  • Parallaxes
GDR3 tbc
  • Orbital parameters
  • Blue and red photometries  
GDR4 tdc
Final release 2022

For more detailed information please check the ESA Gaia data release scenario.