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PlatoSim: An end-to-end PLATO camera simulator for modelling high-precision space-based photometry
N. Jannsen, J. De Ridder, D. Seynaeve +21
PLAnetary Transits and Oscillations of stars (PLATO) is the ESA M3 space mission dedicated to detect and characterise transiting exoplanets including information from the asterosei…
Improving the astrometric solution of the Hyper Suprime-Cam with anisotropic Gaussian processes
P. -F. Léget, P. Astier, N. Regnault +5
We study astrometric residuals from a simultaneous fit of Hyper Suprime-Cam images. We aim to characterize these residuals and study the extent to which they are dominated by atmos…
The shape of the Photon Transfer Curve of CCD sensors
Pierre Astier, Pierre Antilogus, Claire Juramy +4
The Photon Transfer Curve (PTC) of a CCD depicts the variance of uniform images as a function of their average. It is now well established that the variance is not proportional to…
High fidelity point-spread function retrieval in the presence of electrostatic, hysteretic pixel response
Andrew Rasmussen, Augustin Guyonnet, Craig Lage +11
We employ electrostatic conversion drift calculations to match CCD pixel signal covariances observed in flat field exposures acquired using candidate sensor devices for the LSST Ca…
The DICE calibration project: design, characterization, and first results
N. Regnault, A. Guyonnet, K. Schahmanèche +12
We describe the design, operation, and first results of a photometric calibration project, called DICE (Direct Illumination Calibration Experiment), aiming at achieving precise ins…
An introduction to some imperfections of CCD sensors
Pierre Astier
CCD sensors do not deliver a perfect image of the light they receive. Beyond the well known linear image smearing due to diffusion of charges during their drift towards the pixel w…