Other
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.576..433g&link_type=abstract
"Proceedings of the Gaia Symposium "The Three-Dimensional Universe with Gaia" (ESA SP-576). Held at the Observatoire de Paris-Me
Other
1
Astrometry, Gaia, Instrumentation Miscellaneous, Methods Numerical
Scientific paper
The Focal Plane to Sky Mapping (FPSM) describes the detailed response of the Astro instrument, including the optical transfer function over the field, the detector response and operations. Its definition at the microarcsecond (µas) level requires good knowledge of inflight instrument parameters. Science data can be used to trace directly the instrument response, taking advantage of the repeated measurements of stars over the field. We discuss the sensitivity of simple data analysis procedures to several instrument parameters, which can be either disentangled from each other or estimated as collective contributions in case of degeneration.
Busonero Deborah
Gai Marco
Gardiol Daniele
Loreggia Davide
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