Paper
10 August 2010 Monitoring, diagnostic, and calibration of the Gaia astrometric instrument response within the astrometric verification unit
Deborah Busonero, Mario Gai, Mario G. Lattanzi
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Abstract
Micro-arcsecond precision must rely on the detailed knowledge of instrument parameters and observing conditions for optimal definition of data reduction and calibration procedures. The variation of instrumental response over the field of view with wavelength and in time is potentially critical and often unavoidable. This work addresses selected topics in modeling of the astrometric instrument of the Gaia mission, evidencing their role in the data reduction strategy. Discussion is extended to how the modeling will impact on the data quality and to how the science data can be used to trace directly the instrument response. Finally mention is provided of the actual implementation of our recipe into the Astrometric Instrument Model, a software tool which will be used during the processing of Gaia data.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Deborah Busonero, Mario Gai, and Mario G. Lattanzi "Monitoring, diagnostic, and calibration of the Gaia astrometric instrument response within the astrometric verification unit", Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 773133 (10 August 2010); https://doi.org/10.1117/12.857997
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Cited by 1 scholarly publication.
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KEYWORDS
Calibration

Data modeling

Stars

Diagnostics

Charge-coupled devices

Instrument modeling

Point spread functions

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