The Gaia Basic angle: measurement and variations. Issue 67 (17th July 2015)

• Record Type: Journal Article
• Authors: Mora, A.; Bastian, U.; Biermann, M.; Chassat, F.; Lindegren, L.; Serraller, I.; Serpell, E.; van Reeven, W.
• Editors: Walton, N.A.; Figueras, F.; Balaguer-Núñez, L.; Soubiran, C.
• Is Part Of: EAS publications series. Issue 67/68(2014)
• Page Start: 65
• Page End: 68
• Publication Date: 2015-07-17
• Subjects: Astronomy -- Periodicals; 520
• DOI: 10.1051/eas/1567010
• Languages: English
• ISSNs: 1633-4760

Abstract

Abstract : The ESA Gaia mission uses two telescopes to create the most ambitious survey of the Galaxy. The angle between them must be known with exquisite precision and accuracy. An interferometer: the Basic Angle Monitoring system measures its variations. High quality data have been retrieved and analysed for more than a year. A summary of the in-orbit performance and some early results are presented.