European Space Agency
Science & Technology
GAIA DATA RELEASE DOCUMENTATION
Gaia Data Release 2
Documentation release 1.2
Gaia Data Release 2
Documentation release 1.2
I
Introduction to Gaia DR2
II
Gaia data processing
2
Astrometric and photometric pre-processing
3
Astrometry
4
Solar-System Objects
5
Photometry
6
Spectroscopy
6.1
Introduction
6.2
Properties of the input data
6.3
Calibration models
6.3.1
Bias and bias non-uniformity
6.3.2
CCD cosmetics
6.3.3
Straylight background
6.3.4
Wavelength calibration
6.3.5
Along-scan LSF
6.4
Processing steps
6.5
Quality assessment and validation
III
Gaia data analysis
IV
Gaia catalogue
V
Gaia archive
Miscellaneous
Bibliography
6
Spectroscopy
6.2.3
Auxiliary data
6.3.1
Bias and bias non-uniformity
6.3
Calibration models
Author(s): George Seabroke, Paola Sartoretti, Ronny Blomme and Marc David
6.3.1
Bias and bias non-uniformity
6.3.2
CCD cosmetics
6.3.3
Straylight background
6.3.4
Wavelength calibration
6.3.5
Along-scan LSF
Copyright 2026 © European Space Agency. All rights reserved.