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Proceedings Paper

Gaia: operational aspects and tests of Gaia Flight Model CCDs
Author(s): R. Kohley; F. Raison; J. M. Martin-Fleitas
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Paper Abstract

ESA's cornerstone mission Gaia is planning to map 1% of the stellar population of our galaxy, around one thousand million objects, to micro-arcsecond accuracy. In addition to high precision astrometric information, prism dispersion optics will be used to provide multi-band photometry and a spectroscopic instrument provides information for deriving radial velocities. Gaia's focal plane will be the largest ever flown to space comprising an almost Giga-pixel mosaic of 106 specially designed CCDs, the e2v technologies CCD91-72, operated synchronously in TDI mode. This paper will address some operational aspects of these detectors in the Gaia focal plane array and report on recent test results with respect to calibration needs.

Paper Details

Date Published: 17 September 2009
PDF: 9 pages
Proc. SPIE 7439, Astronomical and Space Optical Systems, 74390F (17 September 2009); doi: 10.1117/12.825617
Show Author Affiliations
R. Kohley, European Space Astronomy Ctr., European Space Agency (Spain)
F. Raison, European Space Astronomy Ctr., European Space Agency (Spain)
J. M. Martin-Fleitas, European Space Astronomy Ctr., European Space Agency (Spain)


Published in SPIE Proceedings Vol. 7439:
Astronomical and Space Optical Systems
Penny G. Warren; James B. Heaney; Robert K. Tyson; Michael Hart; E. Todd Kvamme; Cheryl J. Marshall, Editor(s)

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