ESA Gaia Science Community - Gaia
Science with 1 billion objects in three dimensions
Welcome to ESA's website for the Gaia Scientific Community
News & Highlights
16/01/2020 Gaia Archive upgrades to https
Please be reminded that the Gaia Archive will only be served using https starting on 3 February 2020, this in order to improve security. Requests to the old http access point will automatically be redirected. However, existing scripts may fail to be rerouted. For example, you may experience problems with old astroquery versions or hard coded URLs. Please update astroquery, or replace http by https in your code when needed. Some examples can be found in the GUI Help => Command line access. Please contact the Gaia Helpdesk if you still experience problems.
15/01/2020 Updated version of the Gaia DR2 primer
The Gaia DR2 primer has been updated to version 1.1. Apart from fixing some typos, some extra explanation is given on the TCB and links were added to the guide-to-scientists videos. Today's added known issue can also be found in the primer now.
Today we updated the Gaia DR2 known issues page with information on missing objects in the neighbourhood cross-match table with Gaia DR1 sources. This table contains the G-band magnitude difference, the angular distance, and an empirical metric combining both quantities (called “rank”), for all possible matches between Gaia DR1 and Gaia DR2 sources.
Please read through the new known issue carefully to see if it affects how you use Gaia data.
16/12/2019 Gaia Newsletter Issue #9
Please find the latest issue of the Gaia Newsletter here.
12/12/2019 Sampling of the Gaia scanning law now available
Today the sampling of the Gaia scanning law over the 22 month time period covered by the Gaia Data Release 2, including the Ecliptic Pole Scanning at the begin of the mission, is made available from the Gaia Auxiliary Data webpage. Note that this is the commanded attitude of the spacecraft, the actual attitude could deviate from it by up to about 30 arcsec. Find more details here.
Below you can see a visualisation of how Gaia scanned the sky during its first 14 months of operations, so for the time period covered by Gaia Data Release1.
26/09/2019 Update to the Gaia data release scenario
Data processing toward Gaia (E)DR3 continues to progress within the announced schedule. However, to ensure sufficient quality of the quasars and extended objects results, an additional processing run has to be scheduled moving their outcome from Gaia EDR3 to Gaia DR3. Another modification concerns a new data product. A pencil beam survey with (integrated) epoch photometry of all sources (variable and non-variable) will be added to Gaia DR3. The selected field is centred on the Andromeda Galaxy. The cone with 5.5 degree radius contains in total about 1 million sources both in M31 and the Milky Way. In order not to impact the release schedule, only a limited amount of explicit validation will be done on the pencil beam epoch photometry.